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87ad11b0 | 1 | /* Subroutines for insn-output.c for HPPA. |
d353bf18 | 2 | Copyright (C) 1992-2015 Free Software Foundation, Inc. |
87ad11b0 | 3 | Contributed by Tim Moore (moore@cs.utah.edu), based on sparc.c |
4 | ||
5c1d8983 | 5 | This file is part of GCC. |
87ad11b0 | 6 | |
5c1d8983 | 7 | GCC is free software; you can redistribute it and/or modify |
87ad11b0 | 8 | it under the terms of the GNU General Public License as published by |
038d1e19 | 9 | the Free Software Foundation; either version 3, or (at your option) |
87ad11b0 | 10 | any later version. |
11 | ||
5c1d8983 | 12 | GCC is distributed in the hope that it will be useful, |
87ad11b0 | 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
038d1e19 | 18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
87ad11b0 | 20 | |
87ad11b0 | 21 | #include "config.h" |
b1ca791d | 22 | #include "system.h" |
805e22b2 | 23 | #include "coretypes.h" |
9ef16211 | 24 | #include "backend.h" |
d040a5b0 | 25 | #include "cfghooks.h" |
9ef16211 | 26 | #include "tree.h" |
87ad11b0 | 27 | #include "rtl.h" |
9ef16211 | 28 | #include "df.h" |
87ad11b0 | 29 | #include "regs.h" |
87ad11b0 | 30 | #include "insn-config.h" |
31 | #include "conditions.h" | |
87ad11b0 | 32 | #include "insn-attr.h" |
33 | #include "flags.h" | |
b20a8bb4 | 34 | #include "alias.h" |
b20a8bb4 | 35 | #include "fold-const.h" |
9ed99284 | 36 | #include "stor-layout.h" |
37 | #include "stringpool.h" | |
38 | #include "varasm.h" | |
39 | #include "calls.h" | |
9d2d8bd6 | 40 | #include "output.h" |
b5369b7d | 41 | #include "dbxout.h" |
a584fe8a | 42 | #include "except.h" |
d53441c8 | 43 | #include "expmed.h" |
44 | #include "dojump.h" | |
45 | #include "explow.h" | |
46 | #include "emit-rtl.h" | |
47 | #include "stmt.h" | |
32509e56 | 48 | #include "expr.h" |
34517c64 | 49 | #include "insn-codes.h" |
d8fc4d0b | 50 | #include "optabs.h" |
d8fc4d0b | 51 | #include "reload.h" |
0b205f4c | 52 | #include "diagnostic-core.h" |
611a88e1 | 53 | #include "recog.h" |
54 | #include "tm_p.h" | |
a767736d | 55 | #include "target.h" |
218e3e4e | 56 | #include "common/common-target.h" |
0f9c87cc | 57 | #include "langhooks.h" |
94ea8568 | 58 | #include "cfgrtl.h" |
59 | #include "cfganal.h" | |
60 | #include "lcm.h" | |
61 | #include "cfgbuild.h" | |
62 | #include "cfgcleanup.h" | |
fba5dd52 | 63 | #include "opts.h" |
f7715905 | 64 | #include "builtins.h" |
87ad11b0 | 65 | |
0c71fb4f | 66 | /* This file should be included last. */ |
4b498588 | 67 | #include "target-def.h" |
68 | ||
cde3e16c | 69 | /* Return nonzero if there is a bypass for the output of |
70 | OUT_INSN and the fp store IN_INSN. */ | |
71 | int | |
ed3e6e5d | 72 | pa_fpstore_bypass_p (rtx_insn *out_insn, rtx_insn *in_insn) |
cde3e16c | 73 | { |
3754d046 | 74 | machine_mode store_mode; |
75 | machine_mode other_mode; | |
cde3e16c | 76 | rtx set; |
77 | ||
78 | if (recog_memoized (in_insn) < 0 | |
7d9f62cc | 79 | || (get_attr_type (in_insn) != TYPE_FPSTORE |
80 | && get_attr_type (in_insn) != TYPE_FPSTORE_LOAD) | |
cde3e16c | 81 | || recog_memoized (out_insn) < 0) |
82 | return 0; | |
83 | ||
84 | store_mode = GET_MODE (SET_SRC (PATTERN (in_insn))); | |
85 | ||
86 | set = single_set (out_insn); | |
87 | if (!set) | |
88 | return 0; | |
89 | ||
90 | other_mode = GET_MODE (SET_SRC (set)); | |
91 | ||
92 | return (GET_MODE_SIZE (store_mode) == GET_MODE_SIZE (other_mode)); | |
93 | } | |
94 | ||
95 | ||
cc858176 | 96 | #ifndef DO_FRAME_NOTES |
97 | #ifdef INCOMING_RETURN_ADDR_RTX | |
98 | #define DO_FRAME_NOTES 1 | |
99 | #else | |
100 | #define DO_FRAME_NOTES 0 | |
101 | #endif | |
102 | #endif | |
103 | ||
93d3ee56 | 104 | static void pa_option_override (void); |
dbd3d89d | 105 | static void copy_reg_pointer (rtx, rtx); |
320e1276 | 106 | static void fix_range (const char *); |
3754d046 | 107 | static int hppa_register_move_cost (machine_mode mode, reg_class_t, |
93d3ee56 | 108 | reg_class_t); |
3754d046 | 109 | static int hppa_address_cost (rtx, machine_mode mode, addr_space_t, bool); |
5ae4887d | 110 | static bool hppa_rtx_costs (rtx, machine_mode, int, int, int *, bool); |
3754d046 | 111 | static inline rtx force_mode (machine_mode, rtx); |
5c1d8983 | 112 | static void pa_reorg (void); |
113 | static void pa_combine_instructions (void); | |
ed3e6e5d | 114 | static int pa_can_combine_p (rtx_insn *, rtx_insn *, rtx_insn *, int, rtx, |
115 | rtx, rtx); | |
91a55c11 | 116 | static bool forward_branch_p (rtx_insn *); |
5c1d8983 | 117 | static void compute_zdepwi_operands (unsigned HOST_WIDE_INT, unsigned *); |
e202682d | 118 | static void compute_zdepdi_operands (unsigned HOST_WIDE_INT, unsigned *); |
89dcddd6 | 119 | static int compute_movmem_length (rtx_insn *); |
120 | static int compute_clrmem_length (rtx_insn *); | |
5c1d8983 | 121 | static bool pa_assemble_integer (rtx, unsigned int, int); |
122 | static void remove_useless_addtr_insns (int); | |
6bcdc1fb | 123 | static void store_reg (int, HOST_WIDE_INT, int); |
124 | static void store_reg_modify (int, int, HOST_WIDE_INT); | |
125 | static void load_reg (int, HOST_WIDE_INT, int); | |
126 | static void set_reg_plus_d (int, int, HOST_WIDE_INT, int); | |
cb0b8817 | 127 | static rtx pa_function_value (const_tree, const_tree, bool); |
3754d046 | 128 | static rtx pa_libcall_value (machine_mode, const_rtx); |
93d3ee56 | 129 | static bool pa_function_value_regno_p (const unsigned int); |
5c1d8983 | 130 | static void pa_output_function_prologue (FILE *, HOST_WIDE_INT); |
21a47bc9 | 131 | static void update_total_code_bytes (unsigned int); |
5c1d8983 | 132 | static void pa_output_function_epilogue (FILE *, HOST_WIDE_INT); |
18282db0 | 133 | static int pa_adjust_cost (rtx_insn *, rtx, rtx_insn *, int); |
134 | static int pa_adjust_priority (rtx_insn *, int); | |
5c1d8983 | 135 | static int pa_issue_rate (void); |
0e485231 | 136 | static int pa_reloc_rw_mask (void); |
2f14b1f9 | 137 | static void pa_som_asm_init_sections (void) ATTRIBUTE_UNUSED; |
8151bf30 | 138 | static section *pa_som_tm_clone_table_section (void) ATTRIBUTE_UNUSED; |
2f14b1f9 | 139 | static section *pa_select_section (tree, int, unsigned HOST_WIDE_INT) |
52470889 | 140 | ATTRIBUTE_UNUSED; |
5c1d8983 | 141 | static void pa_encode_section_info (tree, rtx, int); |
142 | static const char *pa_strip_name_encoding (const char *); | |
143 | static bool pa_function_ok_for_sibcall (tree, tree); | |
144 | static void pa_globalize_label (FILE *, const char *) | |
63b8cd48 | 145 | ATTRIBUTE_UNUSED; |
5c1d8983 | 146 | static void pa_asm_output_mi_thunk (FILE *, tree, HOST_WIDE_INT, |
147 | HOST_WIDE_INT, tree); | |
de419443 | 148 | #if !defined(USE_COLLECT2) |
5c1d8983 | 149 | static void pa_asm_out_constructor (rtx, int); |
150 | static void pa_asm_out_destructor (rtx, int); | |
de419443 | 151 | #endif |
5c1d8983 | 152 | static void pa_init_builtins (void); |
3754d046 | 153 | static rtx pa_expand_builtin (tree, rtx, rtx, machine_mode mode, int); |
b8debbe8 | 154 | static rtx hppa_builtin_saveregs (void); |
8a58ed0a | 155 | static void hppa_va_start (tree, rtx); |
75a70cf9 | 156 | static tree hppa_gimplify_va_arg_expr (tree, tree, gimple_seq *, gimple_seq *); |
3754d046 | 157 | static bool pa_scalar_mode_supported_p (machine_mode); |
a9f1838b | 158 | static bool pa_commutative_p (const_rtx x, int outer_code); |
89dcddd6 | 159 | static void copy_fp_args (rtx_insn *) ATTRIBUTE_UNUSED; |
160 | static int length_fp_args (rtx_insn *) ATTRIBUTE_UNUSED; | |
3754d046 | 161 | static rtx hppa_legitimize_address (rtx, rtx, machine_mode); |
5c1d8983 | 162 | static inline void pa_file_start_level (void) ATTRIBUTE_UNUSED; |
163 | static inline void pa_file_start_space (int) ATTRIBUTE_UNUSED; | |
164 | static inline void pa_file_start_file (int) ATTRIBUTE_UNUSED; | |
165 | static inline void pa_file_start_mcount (const char*) ATTRIBUTE_UNUSED; | |
166 | static void pa_elf_file_start (void) ATTRIBUTE_UNUSED; | |
167 | static void pa_som_file_start (void) ATTRIBUTE_UNUSED; | |
168 | static void pa_linux_file_start (void) ATTRIBUTE_UNUSED; | |
169 | static void pa_hpux64_gas_file_start (void) ATTRIBUTE_UNUSED; | |
170 | static void pa_hpux64_hpas_file_start (void) ATTRIBUTE_UNUSED; | |
171 | static void output_deferred_plabels (void); | |
bb1bc2ca | 172 | static void output_deferred_profile_counters (void) ATTRIBUTE_UNUSED; |
5f43b4f6 | 173 | #ifdef ASM_OUTPUT_EXTERNAL_REAL |
174 | static void pa_hpux_file_end (void); | |
175 | #endif | |
3912b4d0 | 176 | static void pa_init_libfuncs (void); |
b8debbe8 | 177 | static rtx pa_struct_value_rtx (tree, int); |
3754d046 | 178 | static bool pa_pass_by_reference (cumulative_args_t, machine_mode, |
fb80456a | 179 | const_tree, bool); |
3754d046 | 180 | static int pa_arg_partial_bytes (cumulative_args_t, machine_mode, |
f054eb3c | 181 | tree, bool); |
3754d046 | 182 | static void pa_function_arg_advance (cumulative_args_t, machine_mode, |
8b4bd662 | 183 | const_tree, bool); |
3754d046 | 184 | static rtx pa_function_arg (cumulative_args_t, machine_mode, |
8b4bd662 | 185 | const_tree, bool); |
3754d046 | 186 | static unsigned int pa_function_arg_boundary (machine_mode, const_tree); |
916c9cef | 187 | static struct machine_function * pa_init_machine_status (void); |
964229b7 | 188 | static reg_class_t pa_secondary_reload (bool, rtx, reg_class_t, |
3754d046 | 189 | machine_mode, |
964229b7 | 190 | secondary_reload_info *); |
df6b92e4 | 191 | static void pa_extra_live_on_entry (bitmap); |
3754d046 | 192 | static machine_mode pa_promote_function_mode (const_tree, |
193 | machine_mode, int *, | |
15a27966 | 194 | const_tree, int); |
9d3ddb8f | 195 | |
623a97bc | 196 | static void pa_asm_trampoline_template (FILE *); |
197 | static void pa_trampoline_init (rtx, tree, rtx); | |
198 | static rtx pa_trampoline_adjust_address (rtx); | |
c731c4f5 | 199 | static rtx pa_delegitimize_address (rtx); |
93d3ee56 | 200 | static bool pa_print_operand_punct_valid_p (unsigned char); |
68bc9ae6 | 201 | static rtx pa_internal_arg_pointer (void); |
202 | static bool pa_can_eliminate (const int, const int); | |
b2d7ede1 | 203 | static void pa_conditional_register_usage (void); |
3754d046 | 204 | static machine_mode pa_c_mode_for_suffix (char); |
c9b4a514 | 205 | static section *pa_function_section (tree, enum node_frequency, bool, bool); |
3754d046 | 206 | static bool pa_cannot_force_const_mem (machine_mode, rtx); |
207 | static bool pa_legitimate_constant_p (machine_mode, rtx); | |
7949e3eb | 208 | static unsigned int pa_section_type_flags (tree, const char *, int); |
3754d046 | 209 | static bool pa_legitimate_address_p (machine_mode, rtx, bool); |
623a97bc | 210 | |
2f14b1f9 | 211 | /* The following extra sections are only used for SOM. */ |
212 | static GTY(()) section *som_readonly_data_section; | |
213 | static GTY(()) section *som_one_only_readonly_data_section; | |
214 | static GTY(()) section *som_one_only_data_section; | |
8151bf30 | 215 | static GTY(()) section *som_tm_clone_table_section; |
2f14b1f9 | 216 | |
a9960cdc | 217 | /* Counts for the number of callee-saved general and floating point |
218 | registers which were saved by the current function's prologue. */ | |
219 | static int gr_saved, fr_saved; | |
220 | ||
df6b92e4 | 221 | /* Boolean indicating whether the return pointer was saved by the |
222 | current function's prologue. */ | |
223 | static bool rp_saved; | |
224 | ||
5c1d8983 | 225 | static rtx find_addr_reg (rtx); |
87ad11b0 | 226 | |
2247cc5f | 227 | /* Keep track of the number of bytes we have output in the CODE subspace |
06ddb6f8 | 228 | during this compilation so we'll know when to emit inline long-calls. */ |
ece88821 | 229 | unsigned long total_code_bytes; |
06ddb6f8 | 230 | |
2247cc5f | 231 | /* The last address of the previous function plus the number of bytes in |
232 | associated thunks that have been output. This is used to determine if | |
233 | a thunk can use an IA-relative branch to reach its target function. */ | |
21a47bc9 | 234 | static unsigned int last_address; |
2247cc5f | 235 | |
e3f53689 | 236 | /* Variables to handle plabels that we discover are necessary at assembly |
01cc3b75 | 237 | output time. They are output after the current function. */ |
fb1e4f4a | 238 | struct GTY(()) deferred_plabel |
e3f53689 | 239 | { |
240 | rtx internal_label; | |
5f43b4f6 | 241 | rtx symbol; |
1f3233d1 | 242 | }; |
243 | static GTY((length ("n_deferred_plabels"))) struct deferred_plabel * | |
244 | deferred_plabels; | |
e11bd7e5 | 245 | static size_t n_deferred_plabels = 0; |
a767736d | 246 | \f |
247 | /* Initialize the GCC target structure. */ | |
58356836 | 248 | |
93d3ee56 | 249 | #undef TARGET_OPTION_OVERRIDE |
250 | #define TARGET_OPTION_OVERRIDE pa_option_override | |
251 | ||
58356836 | 252 | #undef TARGET_ASM_ALIGNED_HI_OP |
253 | #define TARGET_ASM_ALIGNED_HI_OP "\t.half\t" | |
254 | #undef TARGET_ASM_ALIGNED_SI_OP | |
255 | #define TARGET_ASM_ALIGNED_SI_OP "\t.word\t" | |
256 | #undef TARGET_ASM_ALIGNED_DI_OP | |
257 | #define TARGET_ASM_ALIGNED_DI_OP "\t.dword\t" | |
258 | #undef TARGET_ASM_UNALIGNED_HI_OP | |
259 | #define TARGET_ASM_UNALIGNED_HI_OP TARGET_ASM_ALIGNED_HI_OP | |
260 | #undef TARGET_ASM_UNALIGNED_SI_OP | |
261 | #define TARGET_ASM_UNALIGNED_SI_OP TARGET_ASM_ALIGNED_SI_OP | |
262 | #undef TARGET_ASM_UNALIGNED_DI_OP | |
263 | #define TARGET_ASM_UNALIGNED_DI_OP TARGET_ASM_ALIGNED_DI_OP | |
264 | #undef TARGET_ASM_INTEGER | |
265 | #define TARGET_ASM_INTEGER pa_assemble_integer | |
266 | ||
17d9b0c3 | 267 | #undef TARGET_ASM_FUNCTION_PROLOGUE |
268 | #define TARGET_ASM_FUNCTION_PROLOGUE pa_output_function_prologue | |
269 | #undef TARGET_ASM_FUNCTION_EPILOGUE | |
270 | #define TARGET_ASM_FUNCTION_EPILOGUE pa_output_function_epilogue | |
e3f53689 | 271 | |
cb0b8817 | 272 | #undef TARGET_FUNCTION_VALUE |
273 | #define TARGET_FUNCTION_VALUE pa_function_value | |
93d3ee56 | 274 | #undef TARGET_LIBCALL_VALUE |
275 | #define TARGET_LIBCALL_VALUE pa_libcall_value | |
276 | #undef TARGET_FUNCTION_VALUE_REGNO_P | |
277 | #define TARGET_FUNCTION_VALUE_REGNO_P pa_function_value_regno_p | |
cb0b8817 | 278 | |
41e3a0c7 | 279 | #undef TARGET_LEGITIMIZE_ADDRESS |
280 | #define TARGET_LEGITIMIZE_ADDRESS hppa_legitimize_address | |
281 | ||
747af5e7 | 282 | #undef TARGET_SCHED_ADJUST_COST |
283 | #define TARGET_SCHED_ADJUST_COST pa_adjust_cost | |
284 | #undef TARGET_SCHED_ADJUST_PRIORITY | |
285 | #define TARGET_SCHED_ADJUST_PRIORITY pa_adjust_priority | |
286 | #undef TARGET_SCHED_ISSUE_RATE | |
287 | #define TARGET_SCHED_ISSUE_RATE pa_issue_rate | |
288 | ||
7811991d | 289 | #undef TARGET_ENCODE_SECTION_INFO |
290 | #define TARGET_ENCODE_SECTION_INFO pa_encode_section_info | |
7b4a38a6 | 291 | #undef TARGET_STRIP_NAME_ENCODING |
292 | #define TARGET_STRIP_NAME_ENCODING pa_strip_name_encoding | |
7811991d | 293 | |
805e22b2 | 294 | #undef TARGET_FUNCTION_OK_FOR_SIBCALL |
295 | #define TARGET_FUNCTION_OK_FOR_SIBCALL pa_function_ok_for_sibcall | |
296 | ||
280566a7 | 297 | #undef TARGET_COMMUTATIVE_P |
298 | #define TARGET_COMMUTATIVE_P pa_commutative_p | |
299 | ||
6988553d | 300 | #undef TARGET_ASM_OUTPUT_MI_THUNK |
301 | #define TARGET_ASM_OUTPUT_MI_THUNK pa_asm_output_mi_thunk | |
eb344f43 | 302 | #undef TARGET_ASM_CAN_OUTPUT_MI_THUNK |
303 | #define TARGET_ASM_CAN_OUTPUT_MI_THUNK default_can_output_mi_thunk_no_vcall | |
6988553d | 304 | |
f6940372 | 305 | #undef TARGET_ASM_FILE_END |
5f43b4f6 | 306 | #ifdef ASM_OUTPUT_EXTERNAL_REAL |
307 | #define TARGET_ASM_FILE_END pa_hpux_file_end | |
308 | #else | |
f6940372 | 309 | #define TARGET_ASM_FILE_END output_deferred_plabels |
5f43b4f6 | 310 | #endif |
f6940372 | 311 | |
0e485231 | 312 | #undef TARGET_ASM_RELOC_RW_MASK |
313 | #define TARGET_ASM_RELOC_RW_MASK pa_reloc_rw_mask | |
314 | ||
93d3ee56 | 315 | #undef TARGET_PRINT_OPERAND_PUNCT_VALID_P |
316 | #define TARGET_PRINT_OPERAND_PUNCT_VALID_P pa_print_operand_punct_valid_p | |
317 | ||
de419443 | 318 | #if !defined(USE_COLLECT2) |
319 | #undef TARGET_ASM_CONSTRUCTOR | |
320 | #define TARGET_ASM_CONSTRUCTOR pa_asm_out_constructor | |
321 | #undef TARGET_ASM_DESTRUCTOR | |
322 | #define TARGET_ASM_DESTRUCTOR pa_asm_out_destructor | |
323 | #endif | |
324 | ||
ffa8918b | 325 | #undef TARGET_INIT_BUILTINS |
326 | #define TARGET_INIT_BUILTINS pa_init_builtins | |
327 | ||
0f9c87cc | 328 | #undef TARGET_EXPAND_BUILTIN |
329 | #define TARGET_EXPAND_BUILTIN pa_expand_builtin | |
330 | ||
93d3ee56 | 331 | #undef TARGET_REGISTER_MOVE_COST |
332 | #define TARGET_REGISTER_MOVE_COST hppa_register_move_cost | |
fab7adbf | 333 | #undef TARGET_RTX_COSTS |
334 | #define TARGET_RTX_COSTS hppa_rtx_costs | |
ec0457a8 | 335 | #undef TARGET_ADDRESS_COST |
336 | #define TARGET_ADDRESS_COST hppa_address_cost | |
fab7adbf | 337 | |
2efea8c0 | 338 | #undef TARGET_MACHINE_DEPENDENT_REORG |
339 | #define TARGET_MACHINE_DEPENDENT_REORG pa_reorg | |
340 | ||
f2f543a3 | 341 | #undef TARGET_INIT_LIBFUNCS |
3912b4d0 | 342 | #define TARGET_INIT_LIBFUNCS pa_init_libfuncs |
f2f543a3 | 343 | |
3b2411a8 | 344 | #undef TARGET_PROMOTE_FUNCTION_MODE |
345 | #define TARGET_PROMOTE_FUNCTION_MODE pa_promote_function_mode | |
b8debbe8 | 346 | #undef TARGET_PROMOTE_PROTOTYPES |
fb80456a | 347 | #define TARGET_PROMOTE_PROTOTYPES hook_bool_const_tree_true |
b8debbe8 | 348 | |
349 | #undef TARGET_STRUCT_VALUE_RTX | |
350 | #define TARGET_STRUCT_VALUE_RTX pa_struct_value_rtx | |
351 | #undef TARGET_RETURN_IN_MEMORY | |
352 | #define TARGET_RETURN_IN_MEMORY pa_return_in_memory | |
0336f0f0 | 353 | #undef TARGET_MUST_PASS_IN_STACK |
354 | #define TARGET_MUST_PASS_IN_STACK must_pass_in_stack_var_size | |
b981d932 | 355 | #undef TARGET_PASS_BY_REFERENCE |
356 | #define TARGET_PASS_BY_REFERENCE pa_pass_by_reference | |
13f08ee7 | 357 | #undef TARGET_CALLEE_COPIES |
358 | #define TARGET_CALLEE_COPIES hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true | |
f054eb3c | 359 | #undef TARGET_ARG_PARTIAL_BYTES |
360 | #define TARGET_ARG_PARTIAL_BYTES pa_arg_partial_bytes | |
8b4bd662 | 361 | #undef TARGET_FUNCTION_ARG |
362 | #define TARGET_FUNCTION_ARG pa_function_arg | |
363 | #undef TARGET_FUNCTION_ARG_ADVANCE | |
364 | #define TARGET_FUNCTION_ARG_ADVANCE pa_function_arg_advance | |
bd99ba64 | 365 | #undef TARGET_FUNCTION_ARG_BOUNDARY |
366 | #define TARGET_FUNCTION_ARG_BOUNDARY pa_function_arg_boundary | |
b8debbe8 | 367 | |
368 | #undef TARGET_EXPAND_BUILTIN_SAVEREGS | |
369 | #define TARGET_EXPAND_BUILTIN_SAVEREGS hppa_builtin_saveregs | |
8a58ed0a | 370 | #undef TARGET_EXPAND_BUILTIN_VA_START |
371 | #define TARGET_EXPAND_BUILTIN_VA_START hppa_va_start | |
4c33eb68 | 372 | #undef TARGET_GIMPLIFY_VA_ARG_EXPR |
373 | #define TARGET_GIMPLIFY_VA_ARG_EXPR hppa_gimplify_va_arg_expr | |
b8debbe8 | 374 | |
2b1e7cc3 | 375 | #undef TARGET_SCALAR_MODE_SUPPORTED_P |
376 | #define TARGET_SCALAR_MODE_SUPPORTED_P pa_scalar_mode_supported_p | |
377 | ||
716b2c5a | 378 | #undef TARGET_CANNOT_FORCE_CONST_MEM |
7d7d7bd2 | 379 | #define TARGET_CANNOT_FORCE_CONST_MEM pa_cannot_force_const_mem |
716b2c5a | 380 | |
5655a0e5 | 381 | #undef TARGET_SECONDARY_RELOAD |
382 | #define TARGET_SECONDARY_RELOAD pa_secondary_reload | |
383 | ||
df6b92e4 | 384 | #undef TARGET_EXTRA_LIVE_ON_ENTRY |
385 | #define TARGET_EXTRA_LIVE_ON_ENTRY pa_extra_live_on_entry | |
386 | ||
623a97bc | 387 | #undef TARGET_ASM_TRAMPOLINE_TEMPLATE |
388 | #define TARGET_ASM_TRAMPOLINE_TEMPLATE pa_asm_trampoline_template | |
389 | #undef TARGET_TRAMPOLINE_INIT | |
390 | #define TARGET_TRAMPOLINE_INIT pa_trampoline_init | |
391 | #undef TARGET_TRAMPOLINE_ADJUST_ADDRESS | |
392 | #define TARGET_TRAMPOLINE_ADJUST_ADDRESS pa_trampoline_adjust_address | |
c731c4f5 | 393 | #undef TARGET_DELEGITIMIZE_ADDRESS |
394 | #define TARGET_DELEGITIMIZE_ADDRESS pa_delegitimize_address | |
68bc9ae6 | 395 | #undef TARGET_INTERNAL_ARG_POINTER |
396 | #define TARGET_INTERNAL_ARG_POINTER pa_internal_arg_pointer | |
397 | #undef TARGET_CAN_ELIMINATE | |
398 | #define TARGET_CAN_ELIMINATE pa_can_eliminate | |
b2d7ede1 | 399 | #undef TARGET_CONDITIONAL_REGISTER_USAGE |
400 | #define TARGET_CONDITIONAL_REGISTER_USAGE pa_conditional_register_usage | |
0f9c87cc | 401 | #undef TARGET_C_MODE_FOR_SUFFIX |
402 | #define TARGET_C_MODE_FOR_SUFFIX pa_c_mode_for_suffix | |
c9b4a514 | 403 | #undef TARGET_ASM_FUNCTION_SECTION |
404 | #define TARGET_ASM_FUNCTION_SECTION pa_function_section | |
623a97bc | 405 | |
ca316360 | 406 | #undef TARGET_LEGITIMATE_CONSTANT_P |
407 | #define TARGET_LEGITIMATE_CONSTANT_P pa_legitimate_constant_p | |
7949e3eb | 408 | #undef TARGET_SECTION_TYPE_FLAGS |
409 | #define TARGET_SECTION_TYPE_FLAGS pa_section_type_flags | |
e8248b41 | 410 | #undef TARGET_LEGITIMATE_ADDRESS_P |
411 | #define TARGET_LEGITIMATE_ADDRESS_P pa_legitimate_address_p | |
ca316360 | 412 | |
57e4bbfb | 413 | struct gcc_target targetm = TARGET_INITIALIZER; |
a767736d | 414 | \f |
320e1276 | 415 | /* Parse the -mfixed-range= option string. */ |
416 | ||
417 | static void | |
418 | fix_range (const char *const_str) | |
419 | { | |
420 | int i, first, last; | |
421 | char *str, *dash, *comma; | |
422 | ||
423 | /* str must be of the form REG1'-'REG2{,REG1'-'REG} where REG1 and | |
424 | REG2 are either register names or register numbers. The effect | |
425 | of this option is to mark the registers in the range from REG1 to | |
426 | REG2 as ``fixed'' so they won't be used by the compiler. This is | |
765cebfc | 427 | used, e.g., to ensure that kernel mode code doesn't use fr4-fr31. */ |
320e1276 | 428 | |
429 | i = strlen (const_str); | |
430 | str = (char *) alloca (i + 1); | |
431 | memcpy (str, const_str, i + 1); | |
432 | ||
433 | while (1) | |
434 | { | |
435 | dash = strchr (str, '-'); | |
436 | if (!dash) | |
437 | { | |
c3ceba8e | 438 | warning (0, "value of -mfixed-range must have form REG1-REG2"); |
320e1276 | 439 | return; |
440 | } | |
441 | *dash = '\0'; | |
442 | ||
443 | comma = strchr (dash + 1, ','); | |
444 | if (comma) | |
445 | *comma = '\0'; | |
446 | ||
447 | first = decode_reg_name (str); | |
448 | if (first < 0) | |
449 | { | |
c3ceba8e | 450 | warning (0, "unknown register name: %s", str); |
320e1276 | 451 | return; |
452 | } | |
453 | ||
454 | last = decode_reg_name (dash + 1); | |
455 | if (last < 0) | |
456 | { | |
c3ceba8e | 457 | warning (0, "unknown register name: %s", dash + 1); |
320e1276 | 458 | return; |
459 | } | |
460 | ||
461 | *dash = '-'; | |
462 | ||
463 | if (first > last) | |
464 | { | |
c3ceba8e | 465 | warning (0, "%s-%s is an empty range", str, dash + 1); |
320e1276 | 466 | return; |
467 | } | |
468 | ||
469 | for (i = first; i <= last; ++i) | |
470 | fixed_regs[i] = call_used_regs[i] = 1; | |
471 | ||
472 | if (!comma) | |
473 | break; | |
474 | ||
475 | *comma = ','; | |
476 | str = comma + 1; | |
477 | } | |
478 | ||
479 | /* Check if all floating point registers have been fixed. */ | |
480 | for (i = FP_REG_FIRST; i <= FP_REG_LAST; i++) | |
481 | if (!fixed_regs[i]) | |
482 | break; | |
483 | ||
484 | if (i > FP_REG_LAST) | |
485 | target_flags |= MASK_DISABLE_FPREGS; | |
486 | } | |
487 | ||
93d3ee56 | 488 | /* Implement the TARGET_OPTION_OVERRIDE hook. */ |
489 | ||
490 | static void | |
491 | pa_option_override (void) | |
bd57250e | 492 | { |
d09dbe0a | 493 | unsigned int i; |
494 | cl_deferred_option *opt; | |
f1f41a6c | 495 | vec<cl_deferred_option> *v |
496 | = (vec<cl_deferred_option> *) pa_deferred_options; | |
d09dbe0a | 497 | |
f1f41a6c | 498 | if (v) |
499 | FOR_EACH_VEC_ELT (*v, i, opt) | |
500 | { | |
501 | switch (opt->opt_index) | |
502 | { | |
503 | case OPT_mfixed_range_: | |
504 | fix_range (opt->arg); | |
505 | break; | |
d09dbe0a | 506 | |
f1f41a6c | 507 | default: |
508 | gcc_unreachable (); | |
509 | } | |
510 | } | |
d09dbe0a | 511 | |
c7a4e712 | 512 | if (flag_pic && TARGET_PORTABLE_RUNTIME) |
513 | { | |
0a81f5a0 | 514 | warning (0, "PIC code generation is not supported in the portable runtime model"); |
c7a4e712 | 515 | } |
516 | ||
b29897dd | 517 | if (flag_pic && TARGET_FAST_INDIRECT_CALLS) |
c7a4e712 | 518 | { |
0a81f5a0 | 519 | warning (0, "PIC code generation is not compatible with fast indirect calls"); |
c7a4e712 | 520 | } |
751e64a1 | 521 | |
5bd7b548 | 522 | if (! TARGET_GAS && write_symbols != NO_DEBUG) |
523 | { | |
c3ceba8e | 524 | warning (0, "-g is only supported when using GAS on this processor,"); |
525 | warning (0, "-g option disabled"); | |
5bd7b548 | 526 | write_symbols = NO_DEBUG; |
527 | } | |
5cb4669a | 528 | |
fc44315f | 529 | /* We only support the "big PIC" model now. And we always generate PIC |
530 | code when in 64bit mode. */ | |
531 | if (flag_pic == 1 || TARGET_64BIT) | |
5e3c5739 | 532 | flag_pic = 2; |
533 | ||
1724df0b | 534 | /* Disable -freorder-blocks-and-partition as we don't support hot and |
535 | cold partitioning. */ | |
536 | if (flag_reorder_blocks_and_partition) | |
537 | { | |
538 | inform (input_location, | |
539 | "-freorder-blocks-and-partition does not work " | |
540 | "on this architecture"); | |
541 | flag_reorder_blocks_and_partition = 0; | |
542 | flag_reorder_blocks = 1; | |
543 | } | |
544 | ||
58356836 | 545 | /* We can't guarantee that .dword is available for 32-bit targets. */ |
546 | if (UNITS_PER_WORD == 4) | |
547 | targetm.asm_out.aligned_op.di = NULL; | |
548 | ||
549 | /* The unaligned ops are only available when using GAS. */ | |
550 | if (!TARGET_GAS) | |
551 | { | |
552 | targetm.asm_out.unaligned_op.hi = NULL; | |
553 | targetm.asm_out.unaligned_op.si = NULL; | |
554 | targetm.asm_out.unaligned_op.di = NULL; | |
555 | } | |
916c9cef | 556 | |
557 | init_machine_status = pa_init_machine_status; | |
134b4858 | 558 | } |
559 | ||
0f9c87cc | 560 | enum pa_builtins |
561 | { | |
562 | PA_BUILTIN_COPYSIGNQ, | |
563 | PA_BUILTIN_FABSQ, | |
564 | PA_BUILTIN_INFQ, | |
565 | PA_BUILTIN_HUGE_VALQ, | |
566 | PA_BUILTIN_max | |
567 | }; | |
568 | ||
569 | static GTY(()) tree pa_builtins[(int) PA_BUILTIN_max]; | |
570 | ||
066397a3 | 571 | static void |
5c1d8983 | 572 | pa_init_builtins (void) |
ffa8918b | 573 | { |
574 | #ifdef DONT_HAVE_FPUTC_UNLOCKED | |
b9a16870 | 575 | { |
576 | tree decl = builtin_decl_explicit (BUILT_IN_PUTC_UNLOCKED); | |
577 | set_builtin_decl (BUILT_IN_FPUTC_UNLOCKED, decl, | |
578 | builtin_decl_implicit_p (BUILT_IN_PUTC_UNLOCKED)); | |
579 | } | |
ffa8918b | 580 | #endif |
01cbacb9 | 581 | #if TARGET_HPUX_11 |
b9a16870 | 582 | { |
583 | tree decl; | |
584 | ||
585 | if ((decl = builtin_decl_explicit (BUILT_IN_FINITE)) != NULL_TREE) | |
586 | set_user_assembler_name (decl, "_Isfinite"); | |
587 | if ((decl = builtin_decl_explicit (BUILT_IN_FINITEF)) != NULL_TREE) | |
588 | set_user_assembler_name (decl, "_Isfinitef"); | |
589 | } | |
aafb162c | 590 | #endif |
0f9c87cc | 591 | |
592 | if (HPUX_LONG_DOUBLE_LIBRARY) | |
593 | { | |
594 | tree decl, ftype; | |
595 | ||
596 | /* Under HPUX, the __float128 type is a synonym for "long double". */ | |
597 | (*lang_hooks.types.register_builtin_type) (long_double_type_node, | |
598 | "__float128"); | |
599 | ||
600 | /* TFmode support builtins. */ | |
601 | ftype = build_function_type_list (long_double_type_node, | |
602 | long_double_type_node, | |
603 | NULL_TREE); | |
604 | decl = add_builtin_function ("__builtin_fabsq", ftype, | |
605 | PA_BUILTIN_FABSQ, BUILT_IN_MD, | |
606 | "_U_Qfabs", NULL_TREE); | |
607 | TREE_READONLY (decl) = 1; | |
608 | pa_builtins[PA_BUILTIN_FABSQ] = decl; | |
609 | ||
610 | ftype = build_function_type_list (long_double_type_node, | |
611 | long_double_type_node, | |
612 | long_double_type_node, | |
613 | NULL_TREE); | |
614 | decl = add_builtin_function ("__builtin_copysignq", ftype, | |
615 | PA_BUILTIN_COPYSIGNQ, BUILT_IN_MD, | |
616 | "_U_Qfcopysign", NULL_TREE); | |
617 | TREE_READONLY (decl) = 1; | |
618 | pa_builtins[PA_BUILTIN_COPYSIGNQ] = decl; | |
619 | ||
ab27801e | 620 | ftype = build_function_type_list (long_double_type_node, NULL_TREE); |
0f9c87cc | 621 | decl = add_builtin_function ("__builtin_infq", ftype, |
622 | PA_BUILTIN_INFQ, BUILT_IN_MD, | |
623 | NULL, NULL_TREE); | |
624 | pa_builtins[PA_BUILTIN_INFQ] = decl; | |
625 | ||
626 | decl = add_builtin_function ("__builtin_huge_valq", ftype, | |
627 | PA_BUILTIN_HUGE_VALQ, BUILT_IN_MD, | |
628 | NULL, NULL_TREE); | |
629 | pa_builtins[PA_BUILTIN_HUGE_VALQ] = decl; | |
630 | } | |
631 | } | |
632 | ||
633 | static rtx | |
634 | pa_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED, | |
3754d046 | 635 | machine_mode mode ATTRIBUTE_UNUSED, |
0f9c87cc | 636 | int ignore ATTRIBUTE_UNUSED) |
637 | { | |
638 | tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0); | |
639 | unsigned int fcode = DECL_FUNCTION_CODE (fndecl); | |
640 | ||
641 | switch (fcode) | |
642 | { | |
643 | case PA_BUILTIN_FABSQ: | |
644 | case PA_BUILTIN_COPYSIGNQ: | |
645 | return expand_call (exp, target, ignore); | |
646 | ||
647 | case PA_BUILTIN_INFQ: | |
648 | case PA_BUILTIN_HUGE_VALQ: | |
649 | { | |
3754d046 | 650 | machine_mode target_mode = TYPE_MODE (TREE_TYPE (exp)); |
0f9c87cc | 651 | REAL_VALUE_TYPE inf; |
652 | rtx tmp; | |
653 | ||
654 | real_inf (&inf); | |
d5f9611d | 655 | tmp = const_double_from_real_value (inf, target_mode); |
0f9c87cc | 656 | |
657 | tmp = validize_mem (force_const_mem (target_mode, tmp)); | |
658 | ||
659 | if (target == 0) | |
660 | target = gen_reg_rtx (target_mode); | |
661 | ||
662 | emit_move_insn (target, tmp); | |
663 | return target; | |
664 | } | |
665 | ||
666 | default: | |
667 | gcc_unreachable (); | |
668 | } | |
669 | ||
670 | return NULL_RTX; | |
ffa8918b | 671 | } |
672 | ||
916c9cef | 673 | /* Function to init struct machine_function. |
674 | This will be called, via a pointer variable, | |
675 | from push_function_context. */ | |
676 | ||
677 | static struct machine_function * | |
678 | pa_init_machine_status (void) | |
679 | { | |
25a27413 | 680 | return ggc_cleared_alloc<machine_function> (); |
916c9cef | 681 | } |
682 | ||
dbd3d89d | 683 | /* If FROM is a probable pointer register, mark TO as a probable |
684 | pointer register with the same pointer alignment as FROM. */ | |
685 | ||
686 | static void | |
687 | copy_reg_pointer (rtx to, rtx from) | |
688 | { | |
689 | if (REG_POINTER (from)) | |
690 | mark_reg_pointer (to, REGNO_POINTER_ALIGN (REGNO (from))); | |
691 | } | |
692 | ||
6d36483b | 693 | /* Return 1 if X contains a symbolic expression. We know these |
694 | expressions will have one of a few well defined forms, so | |
347b5848 | 695 | we need only check those forms. */ |
696 | int | |
e202682d | 697 | pa_symbolic_expression_p (rtx x) |
347b5848 | 698 | { |
699 | ||
6dc3b0d9 | 700 | /* Strip off any HIGH. */ |
347b5848 | 701 | if (GET_CODE (x) == HIGH) |
702 | x = XEXP (x, 0); | |
703 | ||
e8248b41 | 704 | return symbolic_operand (x, VOIDmode); |
347b5848 | 705 | } |
706 | ||
7c4d3047 | 707 | /* Accept any constant that can be moved in one instruction into a |
d9d7c968 | 708 | general register. */ |
6d36483b | 709 | int |
1e5769bd | 710 | pa_cint_ok_for_move (unsigned HOST_WIDE_INT ival) |
d9d7c968 | 711 | { |
712 | /* OK if ldo, ldil, or zdepi, can be used. */ | |
59ad2f1e | 713 | return (VAL_14_BITS_P (ival) |
e202682d | 714 | || pa_ldil_cint_p (ival) |
715 | || pa_zdepi_cint_p (ival)); | |
d9d7c968 | 716 | } |
87ad11b0 | 717 | \f |
59ad2f1e | 718 | /* True iff ldil can be used to load this CONST_INT. The least |
719 | significant 11 bits of the value must be zero and the value must | |
720 | not change sign when extended from 32 to 64 bits. */ | |
721 | int | |
1e5769bd | 722 | pa_ldil_cint_p (unsigned HOST_WIDE_INT ival) |
59ad2f1e | 723 | { |
1e5769bd | 724 | unsigned HOST_WIDE_INT x; |
59ad2f1e | 725 | |
1e5769bd | 726 | x = ival & (((unsigned HOST_WIDE_INT) -1 << 31) | 0x7ff); |
727 | return x == 0 || x == ((unsigned HOST_WIDE_INT) -1 << 31); | |
59ad2f1e | 728 | } |
729 | ||
ea52c577 | 730 | /* True iff zdepi can be used to generate this CONST_INT. |
5b865faf | 731 | zdepi first sign extends a 5-bit signed number to a given field |
ea52c577 | 732 | length, then places this field anywhere in a zero. */ |
e057641f | 733 | int |
e202682d | 734 | pa_zdepi_cint_p (unsigned HOST_WIDE_INT x) |
fad0b60f | 735 | { |
3745c59b | 736 | unsigned HOST_WIDE_INT lsb_mask, t; |
fad0b60f | 737 | |
738 | /* This might not be obvious, but it's at least fast. | |
01cc3b75 | 739 | This function is critical; we don't have the time loops would take. */ |
42faba01 | 740 | lsb_mask = x & -x; |
741 | t = ((x >> 4) + lsb_mask) & ~(lsb_mask - 1); | |
742 | /* Return true iff t is a power of two. */ | |
fad0b60f | 743 | return ((t & (t - 1)) == 0); |
744 | } | |
745 | ||
6d36483b | 746 | /* True iff depi or extru can be used to compute (reg & mask). |
747 | Accept bit pattern like these: | |
748 | 0....01....1 | |
749 | 1....10....0 | |
750 | 1..10..01..1 */ | |
e057641f | 751 | int |
e202682d | 752 | pa_and_mask_p (unsigned HOST_WIDE_INT mask) |
e057641f | 753 | { |
754 | mask = ~mask; | |
755 | mask += mask & -mask; | |
756 | return (mask & (mask - 1)) == 0; | |
757 | } | |
758 | ||
e057641f | 759 | /* True iff depi can be used to compute (reg | MASK). */ |
760 | int | |
e202682d | 761 | pa_ior_mask_p (unsigned HOST_WIDE_INT mask) |
e057641f | 762 | { |
763 | mask += mask & -mask; | |
764 | return (mask & (mask - 1)) == 0; | |
765 | } | |
87ad11b0 | 766 | \f |
767 | /* Legitimize PIC addresses. If the address is already | |
768 | position-independent, we return ORIG. Newly generated | |
769 | position-independent addresses go to REG. If we need more | |
770 | than one register, we lose. */ | |
771 | ||
e202682d | 772 | static rtx |
3754d046 | 773 | legitimize_pic_address (rtx orig, machine_mode mode, rtx reg) |
87ad11b0 | 774 | { |
775 | rtx pic_ref = orig; | |
776 | ||
f7229f19 | 777 | gcc_assert (!PA_SYMBOL_REF_TLS_P (orig)); |
716b2c5a | 778 | |
b090827b | 779 | /* Labels need special handling. */ |
611a88e1 | 780 | if (pic_label_operand (orig, mode)) |
b4a7bf10 | 781 | { |
89dcddd6 | 782 | rtx_insn *insn; |
3e478718 | 783 | |
2536cc16 | 784 | /* We do not want to go through the movXX expanders here since that |
785 | would create recursion. | |
786 | ||
787 | Nor do we really want to call a generator for a named pattern | |
788 | since that requires multiple patterns if we want to support | |
789 | multiple word sizes. | |
790 | ||
791 | So instead we just emit the raw set, which avoids the movXX | |
792 | expanders completely. */ | |
dbd3d89d | 793 | mark_reg_pointer (reg, BITS_PER_UNIT); |
d1f9b275 | 794 | insn = emit_insn (gen_rtx_SET (reg, orig)); |
3e478718 | 795 | |
796 | /* Put a REG_EQUAL note on this insn, so that it can be optimized. */ | |
b9c74b4d | 797 | add_reg_note (insn, REG_EQUAL, orig); |
3e478718 | 798 | |
799 | /* During and after reload, we need to generate a REG_LABEL_OPERAND note | |
800 | and update LABEL_NUSES because this is not done automatically. */ | |
801 | if (reload_in_progress || reload_completed) | |
802 | { | |
803 | /* Extract LABEL_REF. */ | |
804 | if (GET_CODE (orig) == CONST) | |
805 | orig = XEXP (XEXP (orig, 0), 0); | |
806 | /* Extract CODE_LABEL. */ | |
807 | orig = XEXP (orig, 0); | |
a1ddb869 | 808 | add_reg_note (insn, REG_LABEL_OPERAND, orig); |
4aa618ec | 809 | /* Make sure we have label and not a note. */ |
810 | if (LABEL_P (orig)) | |
811 | LABEL_NUSES (orig)++; | |
3e478718 | 812 | } |
18d50ae6 | 813 | crtl->uses_pic_offset_table = 1; |
b4a7bf10 | 814 | return reg; |
815 | } | |
87ad11b0 | 816 | if (GET_CODE (orig) == SYMBOL_REF) |
817 | { | |
89dcddd6 | 818 | rtx_insn *insn; |
819 | rtx tmp_reg; | |
f9c1ba9d | 820 | |
ecf2283d | 821 | gcc_assert (reg); |
87ad11b0 | 822 | |
f9c1ba9d | 823 | /* Before reload, allocate a temporary register for the intermediate |
824 | result. This allows the sequence to be deleted when the final | |
825 | result is unused and the insns are trivially dead. */ | |
826 | tmp_reg = ((reload_in_progress || reload_completed) | |
827 | ? reg : gen_reg_rtx (Pmode)); | |
828 | ||
39ec41d4 | 829 | if (function_label_operand (orig, VOIDmode)) |
3635d963 | 830 | { |
cefef42c | 831 | /* Force function label into memory in word mode. */ |
832 | orig = XEXP (force_const_mem (word_mode, orig), 0); | |
3635d963 | 833 | /* Load plabel address from DLT. */ |
834 | emit_move_insn (tmp_reg, | |
835 | gen_rtx_PLUS (word_mode, pic_offset_table_rtx, | |
836 | gen_rtx_HIGH (word_mode, orig))); | |
837 | pic_ref | |
838 | = gen_const_mem (Pmode, | |
839 | gen_rtx_LO_SUM (Pmode, tmp_reg, | |
840 | gen_rtx_UNSPEC (Pmode, | |
e265a6da | 841 | gen_rtvec (1, orig), |
842 | UNSPEC_DLTIND14R))); | |
3635d963 | 843 | emit_move_insn (reg, pic_ref); |
844 | /* Now load address of function descriptor. */ | |
845 | pic_ref = gen_rtx_MEM (Pmode, reg); | |
846 | } | |
847 | else | |
848 | { | |
849 | /* Load symbol reference from DLT. */ | |
850 | emit_move_insn (tmp_reg, | |
851 | gen_rtx_PLUS (word_mode, pic_offset_table_rtx, | |
852 | gen_rtx_HIGH (word_mode, orig))); | |
853 | pic_ref | |
854 | = gen_const_mem (Pmode, | |
855 | gen_rtx_LO_SUM (Pmode, tmp_reg, | |
856 | gen_rtx_UNSPEC (Pmode, | |
857 | gen_rtvec (1, orig), | |
858 | UNSPEC_DLTIND14R))); | |
859 | } | |
7014838c | 860 | |
18d50ae6 | 861 | crtl->uses_pic_offset_table = 1; |
dbd3d89d | 862 | mark_reg_pointer (reg, BITS_PER_UNIT); |
f9c1ba9d | 863 | insn = emit_move_insn (reg, pic_ref); |
864 | ||
865 | /* Put a REG_EQUAL note on this insn, so that it can be optimized. */ | |
24153880 | 866 | set_unique_reg_note (insn, REG_EQUAL, orig); |
f9c1ba9d | 867 | |
87ad11b0 | 868 | return reg; |
869 | } | |
870 | else if (GET_CODE (orig) == CONST) | |
871 | { | |
57ed30e5 | 872 | rtx base; |
87ad11b0 | 873 | |
874 | if (GET_CODE (XEXP (orig, 0)) == PLUS | |
875 | && XEXP (XEXP (orig, 0), 0) == pic_offset_table_rtx) | |
876 | return orig; | |
877 | ||
ecf2283d | 878 | gcc_assert (reg); |
879 | gcc_assert (GET_CODE (XEXP (orig, 0)) == PLUS); | |
880 | ||
881 | base = legitimize_pic_address (XEXP (XEXP (orig, 0), 0), Pmode, reg); | |
882 | orig = legitimize_pic_address (XEXP (XEXP (orig, 0), 1), Pmode, | |
883 | base == reg ? 0 : reg); | |
dbd3d89d | 884 | |
87ad11b0 | 885 | if (GET_CODE (orig) == CONST_INT) |
886 | { | |
42faba01 | 887 | if (INT_14_BITS (orig)) |
29c05e22 | 888 | return plus_constant (Pmode, base, INTVAL (orig)); |
87ad11b0 | 889 | orig = force_reg (Pmode, orig); |
890 | } | |
ad851752 | 891 | pic_ref = gen_rtx_PLUS (Pmode, base, orig); |
87ad11b0 | 892 | /* Likewise, should we set special REG_NOTEs here? */ |
893 | } | |
dbd3d89d | 894 | |
87ad11b0 | 895 | return pic_ref; |
896 | } | |
897 | ||
716b2c5a | 898 | static GTY(()) rtx gen_tls_tga; |
899 | ||
900 | static rtx | |
901 | gen_tls_get_addr (void) | |
902 | { | |
903 | if (!gen_tls_tga) | |
904 | gen_tls_tga = init_one_libfunc ("__tls_get_addr"); | |
905 | return gen_tls_tga; | |
906 | } | |
907 | ||
908 | static rtx | |
909 | hppa_tls_call (rtx arg) | |
910 | { | |
911 | rtx ret; | |
912 | ||
913 | ret = gen_reg_rtx (Pmode); | |
914 | emit_library_call_value (gen_tls_get_addr (), ret, | |
915 | LCT_CONST, Pmode, 1, arg, Pmode); | |
916 | ||
917 | return ret; | |
918 | } | |
919 | ||
920 | static rtx | |
921 | legitimize_tls_address (rtx addr) | |
922 | { | |
89dcddd6 | 923 | rtx ret, tmp, t1, t2, tp; |
924 | rtx_insn *insn; | |
716b2c5a | 925 | |
b17eb183 | 926 | /* Currently, we can't handle anything but a SYMBOL_REF. */ |
927 | if (GET_CODE (addr) != SYMBOL_REF) | |
928 | return addr; | |
929 | ||
930 | switch (SYMBOL_REF_TLS_MODEL (addr)) | |
716b2c5a | 931 | { |
932 | case TLS_MODEL_GLOBAL_DYNAMIC: | |
933 | tmp = gen_reg_rtx (Pmode); | |
3f8d8851 | 934 | if (flag_pic) |
935 | emit_insn (gen_tgd_load_pic (tmp, addr)); | |
936 | else | |
937 | emit_insn (gen_tgd_load (tmp, addr)); | |
716b2c5a | 938 | ret = hppa_tls_call (tmp); |
939 | break; | |
940 | ||
941 | case TLS_MODEL_LOCAL_DYNAMIC: | |
942 | ret = gen_reg_rtx (Pmode); | |
943 | tmp = gen_reg_rtx (Pmode); | |
944 | start_sequence (); | |
3f8d8851 | 945 | if (flag_pic) |
946 | emit_insn (gen_tld_load_pic (tmp, addr)); | |
947 | else | |
948 | emit_insn (gen_tld_load (tmp, addr)); | |
716b2c5a | 949 | t1 = hppa_tls_call (tmp); |
950 | insn = get_insns (); | |
951 | end_sequence (); | |
952 | t2 = gen_reg_rtx (Pmode); | |
953 | emit_libcall_block (insn, t2, t1, | |
954 | gen_rtx_UNSPEC (Pmode, gen_rtvec (1, const0_rtx), | |
955 | UNSPEC_TLSLDBASE)); | |
956 | emit_insn (gen_tld_offset_load (ret, addr, t2)); | |
957 | break; | |
958 | ||
959 | case TLS_MODEL_INITIAL_EXEC: | |
960 | tp = gen_reg_rtx (Pmode); | |
961 | tmp = gen_reg_rtx (Pmode); | |
962 | ret = gen_reg_rtx (Pmode); | |
963 | emit_insn (gen_tp_load (tp)); | |
3f8d8851 | 964 | if (flag_pic) |
965 | emit_insn (gen_tie_load_pic (tmp, addr)); | |
966 | else | |
967 | emit_insn (gen_tie_load (tmp, addr)); | |
716b2c5a | 968 | emit_move_insn (ret, gen_rtx_PLUS (Pmode, tp, tmp)); |
969 | break; | |
970 | ||
971 | case TLS_MODEL_LOCAL_EXEC: | |
972 | tp = gen_reg_rtx (Pmode); | |
973 | ret = gen_reg_rtx (Pmode); | |
974 | emit_insn (gen_tp_load (tp)); | |
975 | emit_insn (gen_tle_load (ret, addr, tp)); | |
976 | break; | |
977 | ||
978 | default: | |
f7229f19 | 979 | gcc_unreachable (); |
716b2c5a | 980 | } |
981 | ||
982 | return ret; | |
983 | } | |
984 | ||
dedf65c3 | 985 | /* Helper for hppa_legitimize_address. Given X, return true if it |
986 | is a left shift by 1, 2 or 3 positions or a multiply by 2, 4 or 8. | |
987 | ||
988 | This respectively represent canonical shift-add rtxs or scaled | |
989 | memory addresses. */ | |
990 | static bool | |
991 | mem_shadd_or_shadd_rtx_p (rtx x) | |
992 | { | |
993 | return ((GET_CODE (x) == ASHIFT | |
994 | || GET_CODE (x) == MULT) | |
995 | && GET_CODE (XEXP (x, 1)) == CONST_INT | |
996 | && ((GET_CODE (x) == ASHIFT | |
997 | && pa_shadd_constant_p (INTVAL (XEXP (x, 1)))) | |
998 | || (GET_CODE (x) == MULT | |
999 | && pa_mem_shadd_constant_p (INTVAL (XEXP (x, 1)))))); | |
1000 | } | |
1001 | ||
347b5848 | 1002 | /* Try machine-dependent ways of modifying an illegitimate address |
1003 | to be legitimate. If we find one, return the new, valid address. | |
1004 | This macro is used in only one place: `memory_address' in explow.c. | |
1005 | ||
1006 | OLDX is the address as it was before break_out_memory_refs was called. | |
1007 | In some cases it is useful to look at this to decide what needs to be done. | |
1008 | ||
347b5848 | 1009 | It is always safe for this macro to do nothing. It exists to recognize |
6d36483b | 1010 | opportunities to optimize the output. |
347b5848 | 1011 | |
1012 | For the PA, transform: | |
1013 | ||
1014 | memory(X + <large int>) | |
1015 | ||
1016 | into: | |
1017 | ||
1018 | if (<large int> & mask) >= 16 | |
1019 | Y = (<large int> & ~mask) + mask + 1 Round up. | |
1020 | else | |
1021 | Y = (<large int> & ~mask) Round down. | |
1022 | Z = X + Y | |
1023 | memory (Z + (<large int> - Y)); | |
1024 | ||
6d36483b | 1025 | This is for CSE to find several similar references, and only use one Z. |
347b5848 | 1026 | |
33f88b1c | 1027 | X can either be a SYMBOL_REF or REG, but because combine cannot |
347b5848 | 1028 | perform a 4->2 combination we do nothing for SYMBOL_REF + D where |
1029 | D will not fit in 14 bits. | |
1030 | ||
1031 | MODE_FLOAT references allow displacements which fit in 5 bits, so use | |
6d36483b | 1032 | 0x1f as the mask. |
347b5848 | 1033 | |
1034 | MODE_INT references allow displacements which fit in 14 bits, so use | |
6d36483b | 1035 | 0x3fff as the mask. |
347b5848 | 1036 | |
1037 | This relies on the fact that most mode MODE_FLOAT references will use FP | |
1038 | registers and most mode MODE_INT references will use integer registers. | |
1039 | (In the rare case of an FP register used in an integer MODE, we depend | |
1040 | on secondary reloads to clean things up.) | |
1041 | ||
1042 | ||
1043 | It is also beneficial to handle (plus (mult (X) (Y)) (Z)) in a special | |
1044 | manner if Y is 2, 4, or 8. (allows more shadd insns and shifted indexed | |
01cc3b75 | 1045 | addressing modes to be used). |
347b5848 | 1046 | |
dedf65c3 | 1047 | Note that the addresses passed into hppa_legitimize_address always |
1048 | come from a MEM, so we only have to match the MULT form on incoming | |
1049 | addresses. But to be future proof we also match the ASHIFT form. | |
1050 | ||
1051 | However, this routine always places those shift-add sequences into | |
1052 | registers, so we have to generate the ASHIFT form as our output. | |
1053 | ||
347b5848 | 1054 | Put X and Z into registers. Then put the entire expression into |
1055 | a register. */ | |
1056 | ||
1057 | rtx | |
5c1d8983 | 1058 | hppa_legitimize_address (rtx x, rtx oldx ATTRIBUTE_UNUSED, |
3754d046 | 1059 | machine_mode mode) |
347b5848 | 1060 | { |
347b5848 | 1061 | rtx orig = x; |
1062 | ||
dbd3d89d | 1063 | /* We need to canonicalize the order of operands in unscaled indexed |
1064 | addresses since the code that checks if an address is valid doesn't | |
1065 | always try both orders. */ | |
1066 | if (!TARGET_NO_SPACE_REGS | |
1067 | && GET_CODE (x) == PLUS | |
1068 | && GET_MODE (x) == Pmode | |
1069 | && REG_P (XEXP (x, 0)) | |
1070 | && REG_P (XEXP (x, 1)) | |
1071 | && REG_POINTER (XEXP (x, 0)) | |
1072 | && !REG_POINTER (XEXP (x, 1))) | |
1073 | return gen_rtx_PLUS (Pmode, XEXP (x, 1), XEXP (x, 0)); | |
1074 | ||
53ea4c57 | 1075 | if (tls_referenced_p (x)) |
716b2c5a | 1076 | return legitimize_tls_address (x); |
1077 | else if (flag_pic) | |
b4a7bf10 | 1078 | return legitimize_pic_address (x, mode, gen_reg_rtx (Pmode)); |
1079 | ||
6dc3b0d9 | 1080 | /* Strip off CONST. */ |
347b5848 | 1081 | if (GET_CODE (x) == CONST) |
1082 | x = XEXP (x, 0); | |
1083 | ||
42819d4e | 1084 | /* Special case. Get the SYMBOL_REF into a register and use indexing. |
1085 | That should always be safe. */ | |
1086 | if (GET_CODE (x) == PLUS | |
1087 | && GET_CODE (XEXP (x, 0)) == REG | |
1088 | && GET_CODE (XEXP (x, 1)) == SYMBOL_REF) | |
1089 | { | |
440c23df | 1090 | rtx reg = force_reg (Pmode, XEXP (x, 1)); |
1091 | return force_reg (Pmode, gen_rtx_PLUS (Pmode, reg, XEXP (x, 0))); | |
42819d4e | 1092 | } |
1093 | ||
166bf021 | 1094 | /* Note we must reject symbols which represent function addresses |
1095 | since the assembler/linker can't handle arithmetic on plabels. */ | |
347b5848 | 1096 | if (GET_CODE (x) == PLUS |
1097 | && GET_CODE (XEXP (x, 1)) == CONST_INT | |
166bf021 | 1098 | && ((GET_CODE (XEXP (x, 0)) == SYMBOL_REF |
1099 | && !FUNCTION_NAME_P (XSTR (XEXP (x, 0), 0))) | |
347b5848 | 1100 | || GET_CODE (XEXP (x, 0)) == REG)) |
1101 | { | |
1102 | rtx int_part, ptr_reg; | |
1103 | int newoffset; | |
1104 | int offset = INTVAL (XEXP (x, 1)); | |
1b6f11e2 | 1105 | int mask; |
1106 | ||
1107 | mask = (GET_MODE_CLASS (mode) == MODE_FLOAT | |
e8248b41 | 1108 | && !INT14_OK_STRICT ? 0x1f : 0x3fff); |
347b5848 | 1109 | |
6d36483b | 1110 | /* Choose which way to round the offset. Round up if we |
347b5848 | 1111 | are >= halfway to the next boundary. */ |
1112 | if ((offset & mask) >= ((mask + 1) / 2)) | |
1113 | newoffset = (offset & ~ mask) + mask + 1; | |
1114 | else | |
1115 | newoffset = (offset & ~ mask); | |
1116 | ||
1117 | /* If the newoffset will not fit in 14 bits (ldo), then | |
1118 | handling this would take 4 or 5 instructions (2 to load | |
1119 | the SYMBOL_REF + 1 or 2 to load the newoffset + 1 to | |
1120 | add the new offset and the SYMBOL_REF.) Combine can | |
1121 | not handle 4->2 or 5->2 combinations, so do not create | |
1122 | them. */ | |
1123 | if (! VAL_14_BITS_P (newoffset) | |
1124 | && GET_CODE (XEXP (x, 0)) == SYMBOL_REF) | |
1125 | { | |
29c05e22 | 1126 | rtx const_part = plus_constant (Pmode, XEXP (x, 0), newoffset); |
347b5848 | 1127 | rtx tmp_reg |
339613b4 | 1128 | = force_reg (Pmode, |
ad851752 | 1129 | gen_rtx_HIGH (Pmode, const_part)); |
347b5848 | 1130 | ptr_reg |
339613b4 | 1131 | = force_reg (Pmode, |
7014838c | 1132 | gen_rtx_LO_SUM (Pmode, |
1133 | tmp_reg, const_part)); | |
347b5848 | 1134 | } |
1135 | else | |
1136 | { | |
1137 | if (! VAL_14_BITS_P (newoffset)) | |
339613b4 | 1138 | int_part = force_reg (Pmode, GEN_INT (newoffset)); |
347b5848 | 1139 | else |
1140 | int_part = GEN_INT (newoffset); | |
1141 | ||
339613b4 | 1142 | ptr_reg = force_reg (Pmode, |
ad851752 | 1143 | gen_rtx_PLUS (Pmode, |
1144 | force_reg (Pmode, XEXP (x, 0)), | |
1145 | int_part)); | |
347b5848 | 1146 | } |
29c05e22 | 1147 | return plus_constant (Pmode, ptr_reg, offset - newoffset); |
347b5848 | 1148 | } |
45f1285a | 1149 | |
dedf65c3 | 1150 | /* Handle (plus (mult (a) (mem_shadd_constant)) (b)). */ |
45f1285a | 1151 | |
dedf65c3 | 1152 | if (GET_CODE (x) == PLUS |
1153 | && mem_shadd_or_shadd_rtx_p (XEXP (x, 0)) | |
6720e96c | 1154 | && (OBJECT_P (XEXP (x, 1)) |
45f1285a | 1155 | || GET_CODE (XEXP (x, 1)) == SUBREG) |
1156 | && GET_CODE (XEXP (x, 1)) != CONST) | |
347b5848 | 1157 | { |
dedf65c3 | 1158 | /* If we were given a MULT, we must fix the constant |
1159 | as we're going to create the ASHIFT form. */ | |
1160 | int shift_val = INTVAL (XEXP (XEXP (x, 0), 1)); | |
1161 | if (GET_CODE (XEXP (x, 0)) == MULT) | |
1162 | shift_val = exact_log2 (shift_val); | |
5115683e | 1163 | |
dedf65c3 | 1164 | rtx reg1, reg2; |
5115683e | 1165 | reg1 = XEXP (x, 1); |
1166 | if (GET_CODE (reg1) != REG) | |
1167 | reg1 = force_reg (Pmode, force_operand (reg1, 0)); | |
1168 | ||
1169 | reg2 = XEXP (XEXP (x, 0), 0); | |
1170 | if (GET_CODE (reg2) != REG) | |
1171 | reg2 = force_reg (Pmode, force_operand (reg2, 0)); | |
1172 | ||
dedf65c3 | 1173 | return force_reg (Pmode, |
1174 | gen_rtx_PLUS (Pmode, | |
1175 | gen_rtx_ASHIFT (Pmode, reg2, | |
1176 | GEN_INT (shift_val)), | |
1177 | reg1)); | |
347b5848 | 1178 | } |
45f1285a | 1179 | |
dedf65c3 | 1180 | /* Similarly for (plus (plus (mult (a) (mem_shadd_constant)) (b)) (c)). |
00a87639 | 1181 | |
1182 | Only do so for floating point modes since this is more speculative | |
1183 | and we lose if it's an integer store. */ | |
5115683e | 1184 | if (GET_CODE (x) == PLUS |
00a87639 | 1185 | && GET_CODE (XEXP (x, 0)) == PLUS |
dedf65c3 | 1186 | && mem_shadd_or_shadd_rtx_p (XEXP (XEXP (x, 0), 0)) |
5115683e | 1187 | && (mode == SFmode || mode == DFmode)) |
00a87639 | 1188 | { |
dedf65c3 | 1189 | int shift_val = INTVAL (XEXP (XEXP (XEXP (x, 0), 0), 1)); |
1190 | ||
1191 | /* If we were given a MULT, we must fix the constant | |
1192 | as we're going to create the ASHIFT form. */ | |
1193 | if (GET_CODE (XEXP (XEXP (x, 0), 0)) == MULT) | |
1194 | shift_val = exact_log2 (shift_val); | |
5115683e | 1195 | |
dedf65c3 | 1196 | /* Try and figure out what to use as a base register. */ |
1ce99229 | 1197 | rtx reg1, reg2, base, idx; |
5115683e | 1198 | |
1199 | reg1 = XEXP (XEXP (x, 0), 1); | |
1200 | reg2 = XEXP (x, 1); | |
1201 | base = NULL_RTX; | |
1202 | idx = NULL_RTX; | |
1203 | ||
1204 | /* Make sure they're both regs. If one was a SYMBOL_REF [+ const], | |
e202682d | 1205 | then pa_emit_move_sequence will turn on REG_POINTER so we'll know |
e61a0a7f | 1206 | it's a base register below. */ |
5115683e | 1207 | if (GET_CODE (reg1) != REG) |
1208 | reg1 = force_reg (Pmode, force_operand (reg1, 0)); | |
1209 | ||
1210 | if (GET_CODE (reg2) != REG) | |
1211 | reg2 = force_reg (Pmode, force_operand (reg2, 0)); | |
1212 | ||
1213 | /* Figure out what the base and index are. */ | |
9840d99d | 1214 | |
5115683e | 1215 | if (GET_CODE (reg1) == REG |
e61a0a7f | 1216 | && REG_POINTER (reg1)) |
5115683e | 1217 | { |
1218 | base = reg1; | |
ad851752 | 1219 | idx = gen_rtx_PLUS (Pmode, |
dedf65c3 | 1220 | gen_rtx_ASHIFT (Pmode, |
1221 | XEXP (XEXP (XEXP (x, 0), 0), 0), | |
1222 | GEN_INT (shift_val)), | |
ad851752 | 1223 | XEXP (x, 1)); |
5115683e | 1224 | } |
1225 | else if (GET_CODE (reg2) == REG | |
e61a0a7f | 1226 | && REG_POINTER (reg2)) |
5115683e | 1227 | { |
1228 | base = reg2; | |
5115683e | 1229 | idx = XEXP (x, 0); |
1230 | } | |
1231 | ||
1232 | if (base == 0) | |
21f3ee9c | 1233 | return orig; |
5115683e | 1234 | |
1235 | /* If the index adds a large constant, try to scale the | |
1236 | constant so that it can be loaded with only one insn. */ | |
1237 | if (GET_CODE (XEXP (idx, 1)) == CONST_INT | |
1238 | && VAL_14_BITS_P (INTVAL (XEXP (idx, 1)) | |
1239 | / INTVAL (XEXP (XEXP (idx, 0), 1))) | |
1240 | && INTVAL (XEXP (idx, 1)) % INTVAL (XEXP (XEXP (idx, 0), 1)) == 0) | |
1241 | { | |
1242 | /* Divide the CONST_INT by the scale factor, then add it to A. */ | |
1243 | int val = INTVAL (XEXP (idx, 1)); | |
dedf65c3 | 1244 | val /= (1 << shift_val); |
5115683e | 1245 | |
5115683e | 1246 | reg1 = XEXP (XEXP (idx, 0), 0); |
1247 | if (GET_CODE (reg1) != REG) | |
1248 | reg1 = force_reg (Pmode, force_operand (reg1, 0)); | |
1249 | ||
ad851752 | 1250 | reg1 = force_reg (Pmode, gen_rtx_PLUS (Pmode, reg1, GEN_INT (val))); |
5115683e | 1251 | |
1252 | /* We can now generate a simple scaled indexed address. */ | |
7014838c | 1253 | return |
1254 | force_reg | |
1255 | (Pmode, gen_rtx_PLUS (Pmode, | |
dedf65c3 | 1256 | gen_rtx_ASHIFT (Pmode, reg1, |
1257 | GEN_INT (shift_val)), | |
7014838c | 1258 | base)); |
5115683e | 1259 | } |
1260 | ||
1261 | /* If B + C is still a valid base register, then add them. */ | |
1262 | if (GET_CODE (XEXP (idx, 1)) == CONST_INT | |
1263 | && INTVAL (XEXP (idx, 1)) <= 4096 | |
1264 | && INTVAL (XEXP (idx, 1)) >= -4096) | |
1265 | { | |
5115683e | 1266 | rtx reg1, reg2; |
1267 | ||
ad851752 | 1268 | reg1 = force_reg (Pmode, gen_rtx_PLUS (Pmode, base, XEXP (idx, 1))); |
5115683e | 1269 | |
1270 | reg2 = XEXP (XEXP (idx, 0), 0); | |
1271 | if (GET_CODE (reg2) != CONST_INT) | |
1272 | reg2 = force_reg (Pmode, force_operand (reg2, 0)); | |
1273 | ||
dedf65c3 | 1274 | return force_reg (Pmode, |
1275 | gen_rtx_PLUS (Pmode, | |
1276 | gen_rtx_ASHIFT (Pmode, reg2, | |
1277 | GEN_INT (shift_val)), | |
1278 | reg1)); | |
5115683e | 1279 | } |
1280 | ||
1281 | /* Get the index into a register, then add the base + index and | |
1282 | return a register holding the result. */ | |
1283 | ||
1284 | /* First get A into a register. */ | |
1285 | reg1 = XEXP (XEXP (idx, 0), 0); | |
1286 | if (GET_CODE (reg1) != REG) | |
1287 | reg1 = force_reg (Pmode, force_operand (reg1, 0)); | |
1288 | ||
1289 | /* And get B into a register. */ | |
1290 | reg2 = XEXP (idx, 1); | |
1291 | if (GET_CODE (reg2) != REG) | |
1292 | reg2 = force_reg (Pmode, force_operand (reg2, 0)); | |
1293 | ||
ad851752 | 1294 | reg1 = force_reg (Pmode, |
1295 | gen_rtx_PLUS (Pmode, | |
dedf65c3 | 1296 | gen_rtx_ASHIFT (Pmode, reg1, |
1297 | GEN_INT (shift_val)), | |
ad851752 | 1298 | reg2)); |
5115683e | 1299 | |
1300 | /* Add the result to our base register and return. */ | |
ad851752 | 1301 | return force_reg (Pmode, gen_rtx_PLUS (Pmode, base, reg1)); |
9840d99d | 1302 | |
00a87639 | 1303 | } |
1304 | ||
6d36483b | 1305 | /* Uh-oh. We might have an address for x[n-100000]. This needs |
fb5390c1 | 1306 | special handling to avoid creating an indexed memory address |
1307 | with x-100000 as the base. | |
9840d99d | 1308 | |
fb5390c1 | 1309 | If the constant part is small enough, then it's still safe because |
1310 | there is a guard page at the beginning and end of the data segment. | |
1311 | ||
1312 | Scaled references are common enough that we want to try and rearrange the | |
1313 | terms so that we can use indexing for these addresses too. Only | |
00a87639 | 1314 | do the optimization for floatint point modes. */ |
45f1285a | 1315 | |
fb5390c1 | 1316 | if (GET_CODE (x) == PLUS |
e202682d | 1317 | && pa_symbolic_expression_p (XEXP (x, 1))) |
45f1285a | 1318 | { |
1319 | /* Ugly. We modify things here so that the address offset specified | |
1320 | by the index expression is computed first, then added to x to form | |
fb5390c1 | 1321 | the entire address. */ |
45f1285a | 1322 | |
00a87639 | 1323 | rtx regx1, regx2, regy1, regy2, y; |
45f1285a | 1324 | |
1325 | /* Strip off any CONST. */ | |
1326 | y = XEXP (x, 1); | |
1327 | if (GET_CODE (y) == CONST) | |
1328 | y = XEXP (y, 0); | |
1329 | ||
7ee96d6e | 1330 | if (GET_CODE (y) == PLUS || GET_CODE (y) == MINUS) |
1331 | { | |
00a87639 | 1332 | /* See if this looks like |
dedf65c3 | 1333 | (plus (mult (reg) (mem_shadd_const)) |
00a87639 | 1334 | (const (plus (symbol_ref) (const_int)))) |
1335 | ||
5115683e | 1336 | Where const_int is small. In that case the const |
9840d99d | 1337 | expression is a valid pointer for indexing. |
5115683e | 1338 | |
1339 | If const_int is big, but can be divided evenly by shadd_const | |
1340 | and added to (reg). This allows more scaled indexed addresses. */ | |
1341 | if (GET_CODE (XEXP (y, 0)) == SYMBOL_REF | |
dedf65c3 | 1342 | && mem_shadd_or_shadd_rtx_p (XEXP (x, 0)) |
00a87639 | 1343 | && GET_CODE (XEXP (y, 1)) == CONST_INT |
5115683e | 1344 | && INTVAL (XEXP (y, 1)) >= -4096 |
dedf65c3 | 1345 | && INTVAL (XEXP (y, 1)) <= 4095) |
5115683e | 1346 | { |
dedf65c3 | 1347 | int shift_val = INTVAL (XEXP (XEXP (x, 0), 1)); |
1348 | ||
1349 | /* If we were given a MULT, we must fix the constant | |
1350 | as we're going to create the ASHIFT form. */ | |
1351 | if (GET_CODE (XEXP (x, 0)) == MULT) | |
1352 | shift_val = exact_log2 (shift_val); | |
1353 | ||
5115683e | 1354 | rtx reg1, reg2; |
1355 | ||
1356 | reg1 = XEXP (x, 1); | |
1357 | if (GET_CODE (reg1) != REG) | |
1358 | reg1 = force_reg (Pmode, force_operand (reg1, 0)); | |
1359 | ||
1360 | reg2 = XEXP (XEXP (x, 0), 0); | |
1361 | if (GET_CODE (reg2) != REG) | |
1362 | reg2 = force_reg (Pmode, force_operand (reg2, 0)); | |
1363 | ||
dedf65c3 | 1364 | return |
1365 | force_reg (Pmode, | |
1366 | gen_rtx_PLUS (Pmode, | |
1367 | gen_rtx_ASHIFT (Pmode, | |
1368 | reg2, | |
1369 | GEN_INT (shift_val)), | |
1370 | reg1)); | |
5115683e | 1371 | } |
1372 | else if ((mode == DFmode || mode == SFmode) | |
1373 | && GET_CODE (XEXP (y, 0)) == SYMBOL_REF | |
dedf65c3 | 1374 | && mem_shadd_or_shadd_rtx_p (XEXP (x, 0)) |
5115683e | 1375 | && GET_CODE (XEXP (y, 1)) == CONST_INT |
dedf65c3 | 1376 | && INTVAL (XEXP (y, 1)) % (1 << INTVAL (XEXP (XEXP (x, 0), 1))) == 0) |
00a87639 | 1377 | { |
dedf65c3 | 1378 | int shift_val = INTVAL (XEXP (XEXP (x, 0), 1)); |
1379 | ||
1380 | /* If we were given a MULT, we must fix the constant | |
1381 | as we're going to create the ASHIFT form. */ | |
1382 | if (GET_CODE (XEXP (x, 0)) == MULT) | |
1383 | shift_val = exact_log2 (shift_val); | |
1384 | ||
00a87639 | 1385 | regx1 |
1386 | = force_reg (Pmode, GEN_INT (INTVAL (XEXP (y, 1)) | |
1387 | / INTVAL (XEXP (XEXP (x, 0), 1)))); | |
1388 | regx2 = XEXP (XEXP (x, 0), 0); | |
1389 | if (GET_CODE (regx2) != REG) | |
1390 | regx2 = force_reg (Pmode, force_operand (regx2, 0)); | |
ad851752 | 1391 | regx2 = force_reg (Pmode, gen_rtx_fmt_ee (GET_CODE (y), Pmode, |
1392 | regx2, regx1)); | |
7014838c | 1393 | return |
1394 | force_reg (Pmode, | |
1395 | gen_rtx_PLUS (Pmode, | |
dedf65c3 | 1396 | gen_rtx_ASHIFT (Pmode, regx2, |
1397 | GEN_INT (shift_val)), | |
7014838c | 1398 | force_reg (Pmode, XEXP (y, 0)))); |
00a87639 | 1399 | } |
fb5390c1 | 1400 | else if (GET_CODE (XEXP (y, 1)) == CONST_INT |
1401 | && INTVAL (XEXP (y, 1)) >= -4096 | |
1402 | && INTVAL (XEXP (y, 1)) <= 4095) | |
1403 | { | |
1404 | /* This is safe because of the guard page at the | |
1405 | beginning and end of the data space. Just | |
1406 | return the original address. */ | |
1407 | return orig; | |
1408 | } | |
00a87639 | 1409 | else |
1410 | { | |
1411 | /* Doesn't look like one we can optimize. */ | |
1412 | regx1 = force_reg (Pmode, force_operand (XEXP (x, 0), 0)); | |
1413 | regy1 = force_reg (Pmode, force_operand (XEXP (y, 0), 0)); | |
1414 | regy2 = force_reg (Pmode, force_operand (XEXP (y, 1), 0)); | |
1415 | regx1 = force_reg (Pmode, | |
ad851752 | 1416 | gen_rtx_fmt_ee (GET_CODE (y), Pmode, |
1417 | regx1, regy2)); | |
1418 | return force_reg (Pmode, gen_rtx_PLUS (Pmode, regx1, regy1)); | |
00a87639 | 1419 | } |
7ee96d6e | 1420 | } |
45f1285a | 1421 | } |
1422 | ||
347b5848 | 1423 | return orig; |
1424 | } | |
1425 | ||
93d3ee56 | 1426 | /* Implement the TARGET_REGISTER_MOVE_COST hook. |
1427 | ||
1428 | Compute extra cost of moving data between one register class | |
1429 | and another. | |
1430 | ||
1431 | Make moves from SAR so expensive they should never happen. We used to | |
1432 | have 0xffff here, but that generates overflow in rare cases. | |
1433 | ||
1434 | Copies involving a FP register and a non-FP register are relatively | |
1435 | expensive because they must go through memory. | |
1436 | ||
1437 | Other copies are reasonably cheap. */ | |
1438 | ||
1439 | static int | |
3754d046 | 1440 | hppa_register_move_cost (machine_mode mode ATTRIBUTE_UNUSED, |
93d3ee56 | 1441 | reg_class_t from, reg_class_t to) |
1442 | { | |
1443 | if (from == SHIFT_REGS) | |
1444 | return 0x100; | |
5ddb2975 | 1445 | else if (to == SHIFT_REGS && FP_REG_CLASS_P (from)) |
1446 | return 18; | |
93d3ee56 | 1447 | else if ((FP_REG_CLASS_P (from) && ! FP_REG_CLASS_P (to)) |
1448 | || (FP_REG_CLASS_P (to) && ! FP_REG_CLASS_P (from))) | |
1449 | return 16; | |
1450 | else | |
1451 | return 2; | |
1452 | } | |
1453 | ||
87ad11b0 | 1454 | /* For the HPPA, REG and REG+CONST is cost 0 |
1455 | and addresses involving symbolic constants are cost 2. | |
1456 | ||
1457 | PIC addresses are very expensive. | |
1458 | ||
1459 | It is no coincidence that this has the same structure | |
e8248b41 | 1460 | as pa_legitimate_address_p. */ |
ec0457a8 | 1461 | |
1462 | static int | |
3754d046 | 1463 | hppa_address_cost (rtx X, machine_mode mode ATTRIBUTE_UNUSED, |
d9c5e5f4 | 1464 | addr_space_t as ATTRIBUTE_UNUSED, |
f529eb25 | 1465 | bool speed ATTRIBUTE_UNUSED) |
87ad11b0 | 1466 | { |
ec0457a8 | 1467 | switch (GET_CODE (X)) |
1468 | { | |
1469 | case REG: | |
1470 | case PLUS: | |
1471 | case LO_SUM: | |
87ad11b0 | 1472 | return 1; |
ec0457a8 | 1473 | case HIGH: |
1474 | return 2; | |
1475 | default: | |
1476 | return 4; | |
1477 | } | |
87ad11b0 | 1478 | } |
1479 | ||
fab7adbf | 1480 | /* Compute a (partial) cost for rtx X. Return true if the complete |
1481 | cost has been computed, and false if subexpressions should be | |
1482 | scanned. In either case, *TOTAL contains the cost result. */ | |
1483 | ||
1484 | static bool | |
5ae4887d | 1485 | hppa_rtx_costs (rtx x, machine_mode mode, int outer_code, |
1486 | int opno ATTRIBUTE_UNUSED, | |
20d892d1 | 1487 | int *total, bool speed ATTRIBUTE_UNUSED) |
fab7adbf | 1488 | { |
42622d54 | 1489 | int factor; |
5ae4887d | 1490 | int code = GET_CODE (x); |
42622d54 | 1491 | |
fab7adbf | 1492 | switch (code) |
1493 | { | |
1494 | case CONST_INT: | |
1495 | if (INTVAL (x) == 0) | |
1496 | *total = 0; | |
1497 | else if (INT_14_BITS (x)) | |
1498 | *total = 1; | |
1499 | else | |
1500 | *total = 2; | |
1501 | return true; | |
1502 | ||
1503 | case HIGH: | |
1504 | *total = 2; | |
1505 | return true; | |
1506 | ||
1507 | case CONST: | |
1508 | case LABEL_REF: | |
1509 | case SYMBOL_REF: | |
1510 | *total = 4; | |
1511 | return true; | |
1512 | ||
1513 | case CONST_DOUBLE: | |
1514 | if ((x == CONST0_RTX (DFmode) || x == CONST0_RTX (SFmode)) | |
1515 | && outer_code != SET) | |
1516 | *total = 0; | |
1517 | else | |
1518 | *total = 8; | |
1519 | return true; | |
1520 | ||
1521 | case MULT: | |
5ae4887d | 1522 | if (GET_MODE_CLASS (mode) == MODE_FLOAT) |
42622d54 | 1523 | { |
1524 | *total = COSTS_N_INSNS (3); | |
1525 | return true; | |
1526 | } | |
1527 | ||
1528 | /* A mode size N times larger than SImode needs O(N*N) more insns. */ | |
5ae4887d | 1529 | factor = GET_MODE_SIZE (mode) / 4; |
42622d54 | 1530 | if (factor == 0) |
1531 | factor = 1; | |
1532 | ||
1533 | if (TARGET_PA_11 && !TARGET_DISABLE_FPREGS && !TARGET_SOFT_FLOAT) | |
1534 | *total = factor * factor * COSTS_N_INSNS (8); | |
fab7adbf | 1535 | else |
42622d54 | 1536 | *total = factor * factor * COSTS_N_INSNS (20); |
fab7adbf | 1537 | return true; |
1538 | ||
1539 | case DIV: | |
5ae4887d | 1540 | if (GET_MODE_CLASS (mode) == MODE_FLOAT) |
fab7adbf | 1541 | { |
1542 | *total = COSTS_N_INSNS (14); | |
1543 | return true; | |
1544 | } | |
8e262b5e | 1545 | /* FALLTHRU */ |
fab7adbf | 1546 | |
1547 | case UDIV: | |
1548 | case MOD: | |
1549 | case UMOD: | |
42622d54 | 1550 | /* A mode size N times larger than SImode needs O(N*N) more insns. */ |
5ae4887d | 1551 | factor = GET_MODE_SIZE (mode) / 4; |
42622d54 | 1552 | if (factor == 0) |
1553 | factor = 1; | |
1554 | ||
1555 | *total = factor * factor * COSTS_N_INSNS (60); | |
fab7adbf | 1556 | return true; |
1557 | ||
1558 | case PLUS: /* this includes shNadd insns */ | |
1559 | case MINUS: | |
5ae4887d | 1560 | if (GET_MODE_CLASS (mode) == MODE_FLOAT) |
42622d54 | 1561 | { |
1562 | *total = COSTS_N_INSNS (3); | |
1563 | return true; | |
1564 | } | |
1565 | ||
1566 | /* A size N times larger than UNITS_PER_WORD needs N times as | |
1567 | many insns, taking N times as long. */ | |
5ae4887d | 1568 | factor = GET_MODE_SIZE (mode) / UNITS_PER_WORD; |
42622d54 | 1569 | if (factor == 0) |
1570 | factor = 1; | |
1571 | *total = factor * COSTS_N_INSNS (1); | |
fab7adbf | 1572 | return true; |
1573 | ||
1574 | case ASHIFT: | |
1575 | case ASHIFTRT: | |
1576 | case LSHIFTRT: | |
1577 | *total = COSTS_N_INSNS (1); | |
1578 | return true; | |
1579 | ||
1580 | default: | |
1581 | return false; | |
1582 | } | |
1583 | } | |
1584 | ||
9840d99d | 1585 | /* Ensure mode of ORIG, a REG rtx, is MODE. Returns either ORIG or a |
1586 | new rtx with the correct mode. */ | |
1587 | static inline rtx | |
3754d046 | 1588 | force_mode (machine_mode mode, rtx orig) |
9840d99d | 1589 | { |
1590 | if (mode == GET_MODE (orig)) | |
1591 | return orig; | |
1592 | ||
ecf2283d | 1593 | gcc_assert (REGNO (orig) < FIRST_PSEUDO_REGISTER); |
9840d99d | 1594 | |
1595 | return gen_rtx_REG (mode, REGNO (orig)); | |
1596 | } | |
1597 | ||
7d7d7bd2 | 1598 | /* Implement TARGET_CANNOT_FORCE_CONST_MEM. */ |
1599 | ||
1600 | static bool | |
3754d046 | 1601 | pa_cannot_force_const_mem (machine_mode mode ATTRIBUTE_UNUSED, rtx x) |
7d7d7bd2 | 1602 | { |
53ea4c57 | 1603 | return tls_referenced_p (x); |
7d7d7bd2 | 1604 | } |
1605 | ||
87ad11b0 | 1606 | /* Emit insns to move operands[1] into operands[0]. |
1607 | ||
1608 | Return 1 if we have written out everything that needs to be done to | |
1609 | do the move. Otherwise, return 0 and the caller will emit the move | |
9840d99d | 1610 | normally. |
f756078b | 1611 | |
1612 | Note SCRATCH_REG may not be in the proper mode depending on how it | |
2cecd772 | 1613 | will be used. This routine is responsible for creating a new copy |
f756078b | 1614 | of SCRATCH_REG in the proper mode. */ |
87ad11b0 | 1615 | |
1616 | int | |
3754d046 | 1617 | pa_emit_move_sequence (rtx *operands, machine_mode mode, rtx scratch_reg) |
87ad11b0 | 1618 | { |
1619 | register rtx operand0 = operands[0]; | |
1620 | register rtx operand1 = operands[1]; | |
4a155b0f | 1621 | register rtx tem; |
87ad11b0 | 1622 | |
dbd3d89d | 1623 | /* We can only handle indexed addresses in the destination operand |
1624 | of floating point stores. Thus, we need to break out indexed | |
1625 | addresses from the destination operand. */ | |
1626 | if (GET_CODE (operand0) == MEM && IS_INDEX_ADDR_P (XEXP (operand0, 0))) | |
1627 | { | |
e1ba4a27 | 1628 | gcc_assert (can_create_pseudo_p ()); |
dbd3d89d | 1629 | |
1630 | tem = copy_to_mode_reg (Pmode, XEXP (operand0, 0)); | |
1631 | operand0 = replace_equiv_address (operand0, tem); | |
1632 | } | |
1633 | ||
1634 | /* On targets with non-equivalent space registers, break out unscaled | |
1635 | indexed addresses from the source operand before the final CSE. | |
1636 | We have to do this because the REG_POINTER flag is not correctly | |
1637 | carried through various optimization passes and CSE may substitute | |
1638 | a pseudo without the pointer set for one with the pointer set. As | |
5aedf60c | 1639 | a result, we loose various opportunities to create insns with |
dbd3d89d | 1640 | unscaled indexed addresses. */ |
1641 | if (!TARGET_NO_SPACE_REGS | |
1642 | && !cse_not_expected | |
1643 | && GET_CODE (operand1) == MEM | |
1644 | && GET_CODE (XEXP (operand1, 0)) == PLUS | |
1645 | && REG_P (XEXP (XEXP (operand1, 0), 0)) | |
1646 | && REG_P (XEXP (XEXP (operand1, 0), 1))) | |
1647 | operand1 | |
1648 | = replace_equiv_address (operand1, | |
1649 | copy_to_mode_reg (Pmode, XEXP (operand1, 0))); | |
1650 | ||
2d4dc8d2 | 1651 | if (scratch_reg |
1652 | && reload_in_progress && GET_CODE (operand0) == REG | |
d1e2bb73 | 1653 | && REGNO (operand0) >= FIRST_PSEUDO_REGISTER) |
1c654ff1 | 1654 | operand0 = reg_equiv_mem (REGNO (operand0)); |
2d4dc8d2 | 1655 | else if (scratch_reg |
1656 | && reload_in_progress && GET_CODE (operand0) == SUBREG | |
d1e2bb73 | 1657 | && GET_CODE (SUBREG_REG (operand0)) == REG |
1658 | && REGNO (SUBREG_REG (operand0)) >= FIRST_PSEUDO_REGISTER) | |
a3afad75 | 1659 | { |
701e46d0 | 1660 | /* We must not alter SUBREG_BYTE (operand0) since that would confuse |
d3c3f88d | 1661 | the code which tracks sets/uses for delete_output_reload. */ |
1662 | rtx temp = gen_rtx_SUBREG (GET_MODE (operand0), | |
1c654ff1 | 1663 | reg_equiv_mem (REGNO (SUBREG_REG (operand0))), |
701e46d0 | 1664 | SUBREG_BYTE (operand0)); |
c6a6cdaa | 1665 | operand0 = alter_subreg (&temp, true); |
a3afad75 | 1666 | } |
d1e2bb73 | 1667 | |
2d4dc8d2 | 1668 | if (scratch_reg |
1669 | && reload_in_progress && GET_CODE (operand1) == REG | |
d1e2bb73 | 1670 | && REGNO (operand1) >= FIRST_PSEUDO_REGISTER) |
1c654ff1 | 1671 | operand1 = reg_equiv_mem (REGNO (operand1)); |
2d4dc8d2 | 1672 | else if (scratch_reg |
1673 | && reload_in_progress && GET_CODE (operand1) == SUBREG | |
d1e2bb73 | 1674 | && GET_CODE (SUBREG_REG (operand1)) == REG |
1675 | && REGNO (SUBREG_REG (operand1)) >= FIRST_PSEUDO_REGISTER) | |
a3afad75 | 1676 | { |
701e46d0 | 1677 | /* We must not alter SUBREG_BYTE (operand0) since that would confuse |
d3c3f88d | 1678 | the code which tracks sets/uses for delete_output_reload. */ |
1679 | rtx temp = gen_rtx_SUBREG (GET_MODE (operand1), | |
1c654ff1 | 1680 | reg_equiv_mem (REGNO (SUBREG_REG (operand1))), |
701e46d0 | 1681 | SUBREG_BYTE (operand1)); |
c6a6cdaa | 1682 | operand1 = alter_subreg (&temp, true); |
a3afad75 | 1683 | } |
d1e2bb73 | 1684 | |
2d4dc8d2 | 1685 | if (scratch_reg && reload_in_progress && GET_CODE (operand0) == MEM |
4a155b0f | 1686 | && ((tem = find_replacement (&XEXP (operand0, 0))) |
1687 | != XEXP (operand0, 0))) | |
ed498904 | 1688 | operand0 = replace_equiv_address (operand0, tem); |
dbd3d89d | 1689 | |
2d4dc8d2 | 1690 | if (scratch_reg && reload_in_progress && GET_CODE (operand1) == MEM |
4a155b0f | 1691 | && ((tem = find_replacement (&XEXP (operand1, 0))) |
1692 | != XEXP (operand1, 0))) | |
ed498904 | 1693 | operand1 = replace_equiv_address (operand1, tem); |
4a155b0f | 1694 | |
e8fdbafa | 1695 | /* Handle secondary reloads for loads/stores of FP registers from |
047e3121 | 1696 | REG+D addresses where D does not fit in 5 or 14 bits, including |
42819d4e | 1697 | (subreg (mem (addr))) cases. */ |
6bcdc1fb | 1698 | if (scratch_reg |
1699 | && fp_reg_operand (operand0, mode) | |
e8248b41 | 1700 | && (MEM_P (operand1) |
1701 | || (GET_CODE (operand1) == SUBREG | |
1702 | && MEM_P (XEXP (operand1, 0)))) | |
1703 | && !floating_point_store_memory_operand (operand1, mode)) | |
d6f01525 | 1704 | { |
6b1c36c2 | 1705 | if (GET_CODE (operand1) == SUBREG) |
1706 | operand1 = XEXP (operand1, 0); | |
1707 | ||
f756078b | 1708 | /* SCRATCH_REG will hold an address and maybe the actual data. We want |
1709 | it in WORD_MODE regardless of what mode it was originally given | |
1710 | to us. */ | |
9840d99d | 1711 | scratch_reg = force_mode (word_mode, scratch_reg); |
7ee39d73 | 1712 | |
1713 | /* D might not fit in 14 bits either; for such cases load D into | |
1714 | scratch reg. */ | |
e8248b41 | 1715 | if (reg_plus_base_memory_operand (operand1, mode) |
1716 | && !(TARGET_PA_20 | |
1717 | && !TARGET_ELF32 | |
1718 | && INT_14_BITS (XEXP (XEXP (operand1, 0), 1)))) | |
7ee39d73 | 1719 | { |
1720 | emit_move_insn (scratch_reg, XEXP (XEXP (operand1, 0), 1)); | |
dbd3d89d | 1721 | emit_move_insn (scratch_reg, |
1722 | gen_rtx_fmt_ee (GET_CODE (XEXP (operand1, 0)), | |
1723 | Pmode, | |
1724 | XEXP (XEXP (operand1, 0), 0), | |
1725 | scratch_reg)); | |
7ee39d73 | 1726 | } |
1727 | else | |
1728 | emit_move_insn (scratch_reg, XEXP (operand1, 0)); | |
d1f9b275 | 1729 | emit_insn (gen_rtx_SET (operand0, |
ed498904 | 1730 | replace_equiv_address (operand1, scratch_reg))); |
d6f01525 | 1731 | return 1; |
1732 | } | |
6bcdc1fb | 1733 | else if (scratch_reg |
1734 | && fp_reg_operand (operand1, mode) | |
e8248b41 | 1735 | && (MEM_P (operand0) |
1736 | || (GET_CODE (operand0) == SUBREG | |
1737 | && MEM_P (XEXP (operand0, 0)))) | |
1738 | && !floating_point_store_memory_operand (operand0, mode)) | |
d6f01525 | 1739 | { |
6b1c36c2 | 1740 | if (GET_CODE (operand0) == SUBREG) |
1741 | operand0 = XEXP (operand0, 0); | |
1742 | ||
f756078b | 1743 | /* SCRATCH_REG will hold an address and maybe the actual data. We want |
1744 | it in WORD_MODE regardless of what mode it was originally given | |
1745 | to us. */ | |
9840d99d | 1746 | scratch_reg = force_mode (word_mode, scratch_reg); |
f756078b | 1747 | |
7ee39d73 | 1748 | /* D might not fit in 14 bits either; for such cases load D into |
1749 | scratch reg. */ | |
e8248b41 | 1750 | if (reg_plus_base_memory_operand (operand0, mode) |
1751 | && !(TARGET_PA_20 | |
1752 | && !TARGET_ELF32 | |
1753 | && INT_14_BITS (XEXP (XEXP (operand0, 0), 1)))) | |
7ee39d73 | 1754 | { |
1755 | emit_move_insn (scratch_reg, XEXP (XEXP (operand0, 0), 1)); | |
ad851752 | 1756 | emit_move_insn (scratch_reg, gen_rtx_fmt_ee (GET_CODE (XEXP (operand0, |
1757 | 0)), | |
440c23df | 1758 | Pmode, |
ad851752 | 1759 | XEXP (XEXP (operand0, 0), |
1760 | 0), | |
1761 | scratch_reg)); | |
7ee39d73 | 1762 | } |
1763 | else | |
1764 | emit_move_insn (scratch_reg, XEXP (operand0, 0)); | |
d1f9b275 | 1765 | emit_insn (gen_rtx_SET (replace_equiv_address (operand0, scratch_reg), |
ad851752 | 1766 | operand1)); |
d6f01525 | 1767 | return 1; |
1768 | } | |
753bd06a | 1769 | /* Handle secondary reloads for loads of FP registers from constant |
e8248b41 | 1770 | expressions by forcing the constant into memory. For the most part, |
1771 | this is only necessary for SImode and DImode. | |
753bd06a | 1772 | |
e8248b41 | 1773 | Use scratch_reg to hold the address of the memory location. */ |
6bcdc1fb | 1774 | else if (scratch_reg |
753bd06a | 1775 | && CONSTANT_P (operand1) |
6bcdc1fb | 1776 | && fp_reg_operand (operand0, mode)) |
753bd06a | 1777 | { |
ed498904 | 1778 | rtx const_mem, xoperands[2]; |
753bd06a | 1779 | |
e8248b41 | 1780 | if (operand1 == CONST0_RTX (mode)) |
1781 | { | |
d1f9b275 | 1782 | emit_insn (gen_rtx_SET (operand0, operand1)); |
e8248b41 | 1783 | return 1; |
1784 | } | |
1785 | ||
f756078b | 1786 | /* SCRATCH_REG will hold an address and maybe the actual data. We want |
1787 | it in WORD_MODE regardless of what mode it was originally given | |
1788 | to us. */ | |
9840d99d | 1789 | scratch_reg = force_mode (word_mode, scratch_reg); |
f756078b | 1790 | |
753bd06a | 1791 | /* Force the constant into memory and put the address of the |
1792 | memory location into scratch_reg. */ | |
ed498904 | 1793 | const_mem = force_const_mem (mode, operand1); |
753bd06a | 1794 | xoperands[0] = scratch_reg; |
ed498904 | 1795 | xoperands[1] = XEXP (const_mem, 0); |
e202682d | 1796 | pa_emit_move_sequence (xoperands, Pmode, 0); |
753bd06a | 1797 | |
1798 | /* Now load the destination register. */ | |
d1f9b275 | 1799 | emit_insn (gen_rtx_SET (operand0, |
ed498904 | 1800 | replace_equiv_address (const_mem, scratch_reg))); |
753bd06a | 1801 | return 1; |
1802 | } | |
e8fdbafa | 1803 | /* Handle secondary reloads for SAR. These occur when trying to load |
5ddb2975 | 1804 | the SAR from memory or a constant. */ |
6bcdc1fb | 1805 | else if (scratch_reg |
1806 | && GET_CODE (operand0) == REG | |
2a170404 | 1807 | && REGNO (operand0) < FIRST_PSEUDO_REGISTER |
e8fdbafa | 1808 | && REGNO_REG_CLASS (REGNO (operand0)) == SHIFT_REGS |
5ddb2975 | 1809 | && (GET_CODE (operand1) == MEM || GET_CODE (operand1) == CONST_INT)) |
e8fdbafa | 1810 | { |
7eac600c | 1811 | /* D might not fit in 14 bits either; for such cases load D into |
1812 | scratch reg. */ | |
1813 | if (GET_CODE (operand1) == MEM | |
853940d9 | 1814 | && !memory_address_p (GET_MODE (operand0), XEXP (operand1, 0))) |
7eac600c | 1815 | { |
fc4d127d | 1816 | /* We are reloading the address into the scratch register, so we |
1817 | want to make sure the scratch register is a full register. */ | |
9840d99d | 1818 | scratch_reg = force_mode (word_mode, scratch_reg); |
fc4d127d | 1819 | |
9840d99d | 1820 | emit_move_insn (scratch_reg, XEXP (XEXP (operand1, 0), 1)); |
ad851752 | 1821 | emit_move_insn (scratch_reg, gen_rtx_fmt_ee (GET_CODE (XEXP (operand1, |
1822 | 0)), | |
440c23df | 1823 | Pmode, |
ad851752 | 1824 | XEXP (XEXP (operand1, 0), |
1825 | 0), | |
1826 | scratch_reg)); | |
fc4d127d | 1827 | |
1828 | /* Now we are going to load the scratch register from memory, | |
1829 | we want to load it in the same width as the original MEM, | |
1830 | which must be the same as the width of the ultimate destination, | |
1831 | OPERAND0. */ | |
9840d99d | 1832 | scratch_reg = force_mode (GET_MODE (operand0), scratch_reg); |
1833 | ||
ed498904 | 1834 | emit_move_insn (scratch_reg, |
1835 | replace_equiv_address (operand1, scratch_reg)); | |
7eac600c | 1836 | } |
1837 | else | |
fc4d127d | 1838 | { |
1839 | /* We want to load the scratch register using the same mode as | |
1840 | the ultimate destination. */ | |
9840d99d | 1841 | scratch_reg = force_mode (GET_MODE (operand0), scratch_reg); |
1842 | ||
fc4d127d | 1843 | emit_move_insn (scratch_reg, operand1); |
1844 | } | |
1845 | ||
1846 | /* And emit the insn to set the ultimate destination. We know that | |
1847 | the scratch register has the same mode as the destination at this | |
1848 | point. */ | |
e8fdbafa | 1849 | emit_move_insn (operand0, scratch_reg); |
1850 | return 1; | |
1851 | } | |
dbd3d89d | 1852 | /* Handle the most common case: storing into a register. */ |
d6f01525 | 1853 | else if (register_operand (operand0, mode)) |
87ad11b0 | 1854 | { |
f784d2ac | 1855 | /* Legitimize TLS symbol references. This happens for references |
1856 | that aren't a legitimate constant. */ | |
1857 | if (PA_SYMBOL_REF_TLS_P (operand1)) | |
1858 | operand1 = legitimize_tls_address (operand1); | |
1859 | ||
87ad11b0 | 1860 | if (register_operand (operand1, mode) |
93f6e1c7 | 1861 | || (GET_CODE (operand1) == CONST_INT |
1e5769bd | 1862 | && pa_cint_ok_for_move (UINTVAL (operand1))) |
891b55b4 | 1863 | || (operand1 == CONST0_RTX (mode)) |
87ad11b0 | 1864 | || (GET_CODE (operand1) == HIGH |
df0651dc | 1865 | && !symbolic_operand (XEXP (operand1, 0), VOIDmode)) |
87ad11b0 | 1866 | /* Only `general_operands' can come here, so MEM is ok. */ |
1867 | || GET_CODE (operand1) == MEM) | |
1868 | { | |
dbd3d89d | 1869 | /* Various sets are created during RTL generation which don't |
1870 | have the REG_POINTER flag correctly set. After the CSE pass, | |
1871 | instruction recognition can fail if we don't consistently | |
1872 | set this flag when performing register copies. This should | |
1873 | also improve the opportunities for creating insns that use | |
1874 | unscaled indexing. */ | |
1875 | if (REG_P (operand0) && REG_P (operand1)) | |
1876 | { | |
1877 | if (REG_POINTER (operand1) | |
1878 | && !REG_POINTER (operand0) | |
1879 | && !HARD_REGISTER_P (operand0)) | |
1880 | copy_reg_pointer (operand0, operand1); | |
dbd3d89d | 1881 | } |
1882 | ||
1883 | /* When MEMs are broken out, the REG_POINTER flag doesn't | |
1884 | get set. In some cases, we can set the REG_POINTER flag | |
1885 | from the declaration for the MEM. */ | |
1886 | if (REG_P (operand0) | |
1887 | && GET_CODE (operand1) == MEM | |
1888 | && !REG_POINTER (operand0)) | |
1889 | { | |
1890 | tree decl = MEM_EXPR (operand1); | |
1891 | ||
1892 | /* Set the register pointer flag and register alignment | |
1893 | if the declaration for this memory reference is a | |
4d41e927 | 1894 | pointer type. */ |
1895 | if (decl) | |
dbd3d89d | 1896 | { |
1897 | tree type; | |
1898 | ||
1899 | /* If this is a COMPONENT_REF, use the FIELD_DECL from | |
1900 | tree operand 1. */ | |
1901 | if (TREE_CODE (decl) == COMPONENT_REF) | |
1902 | decl = TREE_OPERAND (decl, 1); | |
1903 | ||
1904 | type = TREE_TYPE (decl); | |
eec9c06d | 1905 | type = strip_array_types (type); |
dbd3d89d | 1906 | |
1907 | if (POINTER_TYPE_P (type)) | |
1908 | { | |
1909 | int align; | |
1910 | ||
1911 | type = TREE_TYPE (type); | |
1912 | /* Using TYPE_ALIGN_OK is rather conservative as | |
1913 | only the ada frontend actually sets it. */ | |
1914 | align = (TYPE_ALIGN_OK (type) ? TYPE_ALIGN (type) | |
1915 | : BITS_PER_UNIT); | |
1916 | mark_reg_pointer (operand0, align); | |
1917 | } | |
1918 | } | |
1919 | } | |
1920 | ||
d1f9b275 | 1921 | emit_insn (gen_rtx_SET (operand0, operand1)); |
87ad11b0 | 1922 | return 1; |
1923 | } | |
1924 | } | |
1925 | else if (GET_CODE (operand0) == MEM) | |
1926 | { | |
85eb4c6e | 1927 | if (mode == DFmode && operand1 == CONST0_RTX (mode) |
1928 | && !(reload_in_progress || reload_completed)) | |
1929 | { | |
1930 | rtx temp = gen_reg_rtx (DFmode); | |
1931 | ||
d1f9b275 | 1932 | emit_insn (gen_rtx_SET (temp, operand1)); |
1933 | emit_insn (gen_rtx_SET (operand0, temp)); | |
85eb4c6e | 1934 | return 1; |
1935 | } | |
891b55b4 | 1936 | if (register_operand (operand1, mode) || operand1 == CONST0_RTX (mode)) |
87ad11b0 | 1937 | { |
1938 | /* Run this case quickly. */ | |
d1f9b275 | 1939 | emit_insn (gen_rtx_SET (operand0, operand1)); |
87ad11b0 | 1940 | return 1; |
1941 | } | |
2ff4bf8d | 1942 | if (! (reload_in_progress || reload_completed)) |
87ad11b0 | 1943 | { |
1944 | operands[0] = validize_mem (operand0); | |
1945 | operands[1] = operand1 = force_reg (mode, operand1); | |
1946 | } | |
1947 | } | |
1948 | ||
37a75d53 | 1949 | /* Simplify the source if we need to. |
1950 | Note we do have to handle function labels here, even though we do | |
1951 | not consider them legitimate constants. Loop optimizations can | |
bea60f66 | 1952 | call the emit_move_xxx with one as a source. */ |
57ed30e5 | 1953 | if ((GET_CODE (operand1) != HIGH && immediate_operand (operand1, mode)) |
2ee034bc | 1954 | || (GET_CODE (operand1) == HIGH |
b17eb183 | 1955 | && symbolic_operand (XEXP (operand1, 0), mode)) |
1956 | || function_label_operand (operand1, VOIDmode) | |
53ea4c57 | 1957 | || tls_referenced_p (operand1)) |
87ad11b0 | 1958 | { |
2ee034bc | 1959 | int ishighonly = 0; |
1960 | ||
1961 | if (GET_CODE (operand1) == HIGH) | |
1962 | { | |
1963 | ishighonly = 1; | |
1964 | operand1 = XEXP (operand1, 0); | |
1965 | } | |
87ad11b0 | 1966 | if (symbolic_operand (operand1, mode)) |
1967 | { | |
005a7dd0 | 1968 | /* Argh. The assembler and linker can't handle arithmetic |
81653f9b | 1969 | involving plabels. |
005a7dd0 | 1970 | |
81653f9b | 1971 | So we force the plabel into memory, load operand0 from |
1972 | the memory location, then add in the constant part. */ | |
37a75d53 | 1973 | if ((GET_CODE (operand1) == CONST |
1974 | && GET_CODE (XEXP (operand1, 0)) == PLUS | |
39ec41d4 | 1975 | && function_label_operand (XEXP (XEXP (operand1, 0), 0), |
1976 | VOIDmode)) | |
1977 | || function_label_operand (operand1, VOIDmode)) | |
005a7dd0 | 1978 | { |
b3d569a0 | 1979 | rtx temp, const_part; |
81653f9b | 1980 | |
1981 | /* Figure out what (if any) scratch register to use. */ | |
1982 | if (reload_in_progress || reload_completed) | |
f756078b | 1983 | { |
1984 | scratch_reg = scratch_reg ? scratch_reg : operand0; | |
1985 | /* SCRATCH_REG will hold an address and maybe the actual | |
1986 | data. We want it in WORD_MODE regardless of what mode it | |
1987 | was originally given to us. */ | |
9840d99d | 1988 | scratch_reg = force_mode (word_mode, scratch_reg); |
f756078b | 1989 | } |
81653f9b | 1990 | else if (flag_pic) |
1991 | scratch_reg = gen_reg_rtx (Pmode); | |
1992 | ||
37a75d53 | 1993 | if (GET_CODE (operand1) == CONST) |
1994 | { | |
1995 | /* Save away the constant part of the expression. */ | |
1996 | const_part = XEXP (XEXP (operand1, 0), 1); | |
ecf2283d | 1997 | gcc_assert (GET_CODE (const_part) == CONST_INT); |
37a75d53 | 1998 | |
1999 | /* Force the function label into memory. */ | |
2000 | temp = force_const_mem (mode, XEXP (XEXP (operand1, 0), 0)); | |
2001 | } | |
2002 | else | |
2003 | { | |
2004 | /* No constant part. */ | |
2005 | const_part = NULL_RTX; | |
005a7dd0 | 2006 | |
37a75d53 | 2007 | /* Force the function label into memory. */ |
2008 | temp = force_const_mem (mode, operand1); | |
2009 | } | |
9840d99d | 2010 | |
81653f9b | 2011 | |
2012 | /* Get the address of the memory location. PIC-ify it if | |
2013 | necessary. */ | |
2014 | temp = XEXP (temp, 0); | |
2015 | if (flag_pic) | |
2016 | temp = legitimize_pic_address (temp, mode, scratch_reg); | |
2017 | ||
2018 | /* Put the address of the memory location into our destination | |
2019 | register. */ | |
2020 | operands[1] = temp; | |
e202682d | 2021 | pa_emit_move_sequence (operands, mode, scratch_reg); |
81653f9b | 2022 | |
2023 | /* Now load from the memory location into our destination | |
2024 | register. */ | |
ad851752 | 2025 | operands[1] = gen_rtx_MEM (Pmode, operands[0]); |
e202682d | 2026 | pa_emit_move_sequence (operands, mode, scratch_reg); |
81653f9b | 2027 | |
2028 | /* And add back in the constant part. */ | |
37a75d53 | 2029 | if (const_part != NULL_RTX) |
2030 | expand_inc (operand0, const_part); | |
81653f9b | 2031 | |
2032 | return 1; | |
005a7dd0 | 2033 | } |
2034 | ||
87ad11b0 | 2035 | if (flag_pic) |
2036 | { | |
786391d9 | 2037 | rtx_insn *insn; |
2ff4bf8d | 2038 | rtx temp; |
2039 | ||
2040 | if (reload_in_progress || reload_completed) | |
f756078b | 2041 | { |
2042 | temp = scratch_reg ? scratch_reg : operand0; | |
2043 | /* TEMP will hold an address and maybe the actual | |
2044 | data. We want it in WORD_MODE regardless of what mode it | |
2045 | was originally given to us. */ | |
9840d99d | 2046 | temp = force_mode (word_mode, temp); |
f756078b | 2047 | } |
2ff4bf8d | 2048 | else |
2049 | temp = gen_reg_rtx (Pmode); | |
6d36483b | 2050 | |
786391d9 | 2051 | /* Force (const (plus (symbol) (const_int))) to memory |
2052 | if the const_int will not fit in 14 bits. Although | |
2053 | this requires a relocation, the instruction sequence | |
2054 | needed to load the value is shorter. */ | |
81653f9b | 2055 | if (GET_CODE (operand1) == CONST |
96b86ab6 | 2056 | && GET_CODE (XEXP (operand1, 0)) == PLUS |
2057 | && GET_CODE (XEXP (XEXP (operand1, 0), 1)) == CONST_INT | |
786391d9 | 2058 | && !INT_14_BITS (XEXP (XEXP (operand1, 0), 1))) |
96b86ab6 | 2059 | { |
786391d9 | 2060 | rtx x, m = force_const_mem (mode, operand1); |
2061 | ||
2062 | x = legitimize_pic_address (XEXP (m, 0), mode, temp); | |
2063 | x = replace_equiv_address (m, x); | |
2064 | insn = emit_move_insn (operand0, x); | |
96b86ab6 | 2065 | } |
005a7dd0 | 2066 | else |
2067 | { | |
2068 | operands[1] = legitimize_pic_address (operand1, mode, temp); | |
dbd3d89d | 2069 | if (REG_P (operand0) && REG_P (operands[1])) |
2070 | copy_reg_pointer (operand0, operands[1]); | |
786391d9 | 2071 | insn = emit_move_insn (operand0, operands[1]); |
005a7dd0 | 2072 | } |
786391d9 | 2073 | |
2074 | /* Put a REG_EQUAL note on this insn. */ | |
2075 | set_unique_reg_note (insn, REG_EQUAL, operand1); | |
87ad11b0 | 2076 | } |
b4a7bf10 | 2077 | /* On the HPPA, references to data space are supposed to use dp, |
2078 | register 27, but showing it in the RTL inhibits various cse | |
2079 | and loop optimizations. */ | |
6d36483b | 2080 | else |
87ad11b0 | 2081 | { |
005a7dd0 | 2082 | rtx temp, set; |
2ee034bc | 2083 | |
6d36483b | 2084 | if (reload_in_progress || reload_completed) |
f756078b | 2085 | { |
2086 | temp = scratch_reg ? scratch_reg : operand0; | |
2087 | /* TEMP will hold an address and maybe the actual | |
2088 | data. We want it in WORD_MODE regardless of what mode it | |
2089 | was originally given to us. */ | |
9840d99d | 2090 | temp = force_mode (word_mode, temp); |
f756078b | 2091 | } |
2ee034bc | 2092 | else |
2093 | temp = gen_reg_rtx (mode); | |
2094 | ||
42819d4e | 2095 | /* Loading a SYMBOL_REF into a register makes that register |
9840d99d | 2096 | safe to be used as the base in an indexed address. |
42819d4e | 2097 | |
2098 | Don't mark hard registers though. That loses. */ | |
47a61b79 | 2099 | if (GET_CODE (operand0) == REG |
2100 | && REGNO (operand0) >= FIRST_PSEUDO_REGISTER) | |
dbd3d89d | 2101 | mark_reg_pointer (operand0, BITS_PER_UNIT); |
42819d4e | 2102 | if (REGNO (temp) >= FIRST_PSEUDO_REGISTER) |
dbd3d89d | 2103 | mark_reg_pointer (temp, BITS_PER_UNIT); |
2104 | ||
2ee034bc | 2105 | if (ishighonly) |
d1f9b275 | 2106 | set = gen_rtx_SET (operand0, temp); |
2ee034bc | 2107 | else |
d1f9b275 | 2108 | set = gen_rtx_SET (operand0, |
ad851752 | 2109 | gen_rtx_LO_SUM (mode, temp, operand1)); |
6d36483b | 2110 | |
d1f9b275 | 2111 | emit_insn (gen_rtx_SET (temp, gen_rtx_HIGH (mode, operand1))); |
d2498717 | 2112 | emit_insn (set); |
166bf021 | 2113 | |
87ad11b0 | 2114 | } |
2ee034bc | 2115 | return 1; |
87ad11b0 | 2116 | } |
53ea4c57 | 2117 | else if (tls_referenced_p (operand1)) |
716b2c5a | 2118 | { |
2119 | rtx tmp = operand1; | |
2120 | rtx addend = NULL; | |
2121 | ||
2122 | if (GET_CODE (tmp) == CONST && GET_CODE (XEXP (tmp, 0)) == PLUS) | |
2123 | { | |
2124 | addend = XEXP (XEXP (tmp, 0), 1); | |
2125 | tmp = XEXP (XEXP (tmp, 0), 0); | |
2126 | } | |
2127 | ||
2128 | gcc_assert (GET_CODE (tmp) == SYMBOL_REF); | |
2129 | tmp = legitimize_tls_address (tmp); | |
2130 | if (addend) | |
2131 | { | |
2132 | tmp = gen_rtx_PLUS (mode, tmp, addend); | |
2133 | tmp = force_operand (tmp, operands[0]); | |
2134 | } | |
2135 | operands[1] = tmp; | |
2136 | } | |
42faba01 | 2137 | else if (GET_CODE (operand1) != CONST_INT |
1e5769bd | 2138 | || !pa_cint_ok_for_move (UINTVAL (operand1))) |
87ad11b0 | 2139 | { |
89dcddd6 | 2140 | rtx temp; |
2141 | rtx_insn *insn; | |
6bcdc1fb | 2142 | rtx op1 = operand1; |
6edde44b | 2143 | HOST_WIDE_INT value = 0; |
6bcdc1fb | 2144 | HOST_WIDE_INT insv = 0; |
2145 | int insert = 0; | |
2146 | ||
6edde44b | 2147 | if (GET_CODE (operand1) == CONST_INT) |
2148 | value = INTVAL (operand1); | |
2149 | ||
6bcdc1fb | 2150 | if (TARGET_64BIT |
2151 | && GET_CODE (operand1) == CONST_INT | |
b7d86581 | 2152 | && HOST_BITS_PER_WIDE_INT > 32 |
5e3c5739 | 2153 | && GET_MODE_BITSIZE (GET_MODE (operand0)) > 32) |
2154 | { | |
b7d86581 | 2155 | HOST_WIDE_INT nval; |
5e3c5739 | 2156 | |
93f6e1c7 | 2157 | /* Extract the low order 32 bits of the value and sign extend. |
2158 | If the new value is the same as the original value, we can | |
2159 | can use the original value as-is. If the new value is | |
2160 | different, we use it and insert the most-significant 32-bits | |
2161 | of the original value into the final result. */ | |
6bcdc1fb | 2162 | nval = ((value & (((HOST_WIDE_INT) 2 << 31) - 1)) |
b7d86581 | 2163 | ^ ((HOST_WIDE_INT) 1 << 31)) - ((HOST_WIDE_INT) 1 << 31); |
6bcdc1fb | 2164 | if (value != nval) |
5e3c5739 | 2165 | { |
93f6e1c7 | 2166 | #if HOST_BITS_PER_WIDE_INT > 32 |
6bcdc1fb | 2167 | insv = value >= 0 ? value >> 32 : ~(~value >> 32); |
93f6e1c7 | 2168 | #endif |
6bcdc1fb | 2169 | insert = 1; |
2170 | value = nval; | |
5e3c5739 | 2171 | operand1 = GEN_INT (nval); |
2172 | } | |
2173 | } | |
2ff4bf8d | 2174 | |
2175 | if (reload_in_progress || reload_completed) | |
6bcdc1fb | 2176 | temp = scratch_reg ? scratch_reg : operand0; |
2ff4bf8d | 2177 | else |
2178 | temp = gen_reg_rtx (mode); | |
2179 | ||
7c4d3047 | 2180 | /* We don't directly split DImode constants on 32-bit targets |
2181 | because PLUS uses an 11-bit immediate and the insn sequence | |
2182 | generated is not as efficient as the one using HIGH/LO_SUM. */ | |
2183 | if (GET_CODE (operand1) == CONST_INT | |
58cac6ba | 2184 | && GET_MODE_BITSIZE (mode) <= BITS_PER_WORD |
6bcdc1fb | 2185 | && GET_MODE_BITSIZE (mode) <= HOST_BITS_PER_WIDE_INT |
2186 | && !insert) | |
93f6e1c7 | 2187 | { |
7c4d3047 | 2188 | /* Directly break constant into high and low parts. This |
93f6e1c7 | 2189 | provides better optimization opportunities because various |
2190 | passes recognize constants split with PLUS but not LO_SUM. | |
2191 | We use a 14-bit signed low part except when the addition | |
2192 | of 0x4000 to the high part might change the sign of the | |
2193 | high part. */ | |
93f6e1c7 | 2194 | HOST_WIDE_INT low = value & 0x3fff; |
2195 | HOST_WIDE_INT high = value & ~ 0x3fff; | |
2196 | ||
2197 | if (low >= 0x2000) | |
2198 | { | |
2199 | if (high == 0x7fffc000 || (mode == HImode && high == 0x4000)) | |
2200 | high += 0x2000; | |
2201 | else | |
2202 | high += 0x4000; | |
2203 | } | |
2204 | ||
2205 | low = value - high; | |
5e3c5739 | 2206 | |
d1f9b275 | 2207 | emit_insn (gen_rtx_SET (temp, GEN_INT (high))); |
93f6e1c7 | 2208 | operands[1] = gen_rtx_PLUS (mode, temp, GEN_INT (low)); |
2209 | } | |
2210 | else | |
5e3c5739 | 2211 | { |
d1f9b275 | 2212 | emit_insn (gen_rtx_SET (temp, gen_rtx_HIGH (mode, operand1))); |
93f6e1c7 | 2213 | operands[1] = gen_rtx_LO_SUM (mode, temp, operand1); |
5e3c5739 | 2214 | } |
9840d99d | 2215 | |
6bcdc1fb | 2216 | insn = emit_move_insn (operands[0], operands[1]); |
2217 | ||
2218 | /* Now insert the most significant 32 bits of the value | |
2219 | into the register. When we don't have a second register | |
2220 | available, it could take up to nine instructions to load | |
2221 | a 64-bit integer constant. Prior to reload, we force | |
2222 | constants that would take more than three instructions | |
2223 | to load to the constant pool. During and after reload, | |
2224 | we have to handle all possible values. */ | |
2225 | if (insert) | |
2226 | { | |
2227 | /* Use a HIGH/LO_SUM/INSV sequence if we have a second | |
2228 | register and the value to be inserted is outside the | |
2229 | range that can be loaded with three depdi instructions. */ | |
2230 | if (temp != operand0 && (insv >= 16384 || insv < -16384)) | |
2231 | { | |
2232 | operand1 = GEN_INT (insv); | |
2233 | ||
d1f9b275 | 2234 | emit_insn (gen_rtx_SET (temp, |
6bcdc1fb | 2235 | gen_rtx_HIGH (mode, operand1))); |
2236 | emit_move_insn (temp, gen_rtx_LO_SUM (mode, temp, operand1)); | |
81d5e322 | 2237 | if (mode == DImode) |
59ed0a0f | 2238 | insn = emit_insn (gen_insvdi (operand0, GEN_INT (32), |
2239 | const0_rtx, temp)); | |
81d5e322 | 2240 | else |
59ed0a0f | 2241 | insn = emit_insn (gen_insvsi (operand0, GEN_INT (32), |
2242 | const0_rtx, temp)); | |
6bcdc1fb | 2243 | } |
2244 | else | |
2245 | { | |
2246 | int len = 5, pos = 27; | |
2247 | ||
2248 | /* Insert the bits using the depdi instruction. */ | |
2249 | while (pos >= 0) | |
2250 | { | |
2251 | HOST_WIDE_INT v5 = ((insv & 31) ^ 16) - 16; | |
2252 | HOST_WIDE_INT sign = v5 < 0; | |
2253 | ||
2254 | /* Left extend the insertion. */ | |
2255 | insv = (insv >= 0 ? insv >> len : ~(~insv >> len)); | |
2256 | while (pos > 0 && (insv & 1) == sign) | |
2257 | { | |
2258 | insv = (insv >= 0 ? insv >> 1 : ~(~insv >> 1)); | |
2259 | len += 1; | |
2260 | pos -= 1; | |
2261 | } | |
2262 | ||
81d5e322 | 2263 | if (mode == DImode) |
59ed0a0f | 2264 | insn = emit_insn (gen_insvdi (operand0, |
2265 | GEN_INT (len), | |
2266 | GEN_INT (pos), | |
2267 | GEN_INT (v5))); | |
81d5e322 | 2268 | else |
59ed0a0f | 2269 | insn = emit_insn (gen_insvsi (operand0, |
2270 | GEN_INT (len), | |
2271 | GEN_INT (pos), | |
2272 | GEN_INT (v5))); | |
6bcdc1fb | 2273 | |
2274 | len = pos > 0 && pos < 5 ? pos : 5; | |
2275 | pos -= len; | |
2276 | } | |
2277 | } | |
2278 | } | |
93f6e1c7 | 2279 | |
24153880 | 2280 | set_unique_reg_note (insn, REG_EQUAL, op1); |
93f6e1c7 | 2281 | |
5e3c5739 | 2282 | return 1; |
87ad11b0 | 2283 | } |
2284 | } | |
2285 | /* Now have insn-emit do whatever it normally does. */ | |
2286 | return 0; | |
2287 | } | |
2288 | ||
1946138e | 2289 | /* Examine EXP and return nonzero if it contains an ADDR_EXPR (meaning |
bd49d362 | 2290 | it will need a link/runtime reloc). */ |
1946138e | 2291 | |
2292 | int | |
e202682d | 2293 | pa_reloc_needed (tree exp) |
1946138e | 2294 | { |
2295 | int reloc = 0; | |
2296 | ||
2297 | switch (TREE_CODE (exp)) | |
2298 | { | |
2299 | case ADDR_EXPR: | |
2300 | return 1; | |
2301 | ||
0de36bdb | 2302 | case POINTER_PLUS_EXPR: |
1946138e | 2303 | case PLUS_EXPR: |
2304 | case MINUS_EXPR: | |
e202682d | 2305 | reloc = pa_reloc_needed (TREE_OPERAND (exp, 0)); |
2306 | reloc |= pa_reloc_needed (TREE_OPERAND (exp, 1)); | |
1946138e | 2307 | break; |
2308 | ||
72dd6141 | 2309 | CASE_CONVERT: |
1946138e | 2310 | case NON_LVALUE_EXPR: |
e202682d | 2311 | reloc = pa_reloc_needed (TREE_OPERAND (exp, 0)); |
1946138e | 2312 | break; |
2313 | ||
2314 | case CONSTRUCTOR: | |
2315 | { | |
729d4a82 | 2316 | tree value; |
2317 | unsigned HOST_WIDE_INT ix; | |
2318 | ||
2319 | FOR_EACH_CONSTRUCTOR_VALUE (CONSTRUCTOR_ELTS (exp), ix, value) | |
2320 | if (value) | |
e202682d | 2321 | reloc |= pa_reloc_needed (value); |
1946138e | 2322 | } |
2323 | break; | |
2324 | ||
2325 | case ERROR_MARK: | |
2326 | break; | |
7d27e4c9 | 2327 | |
2328 | default: | |
2329 | break; | |
1946138e | 2330 | } |
2331 | return reloc; | |
2332 | } | |
2333 | ||
87ad11b0 | 2334 | \f |
2335 | /* Return the best assembler insn template | |
5aedf60c | 2336 | for moving operands[1] into operands[0] as a fullword. */ |
611a88e1 | 2337 | const char * |
e202682d | 2338 | pa_singlemove_string (rtx *operands) |
87ad11b0 | 2339 | { |
3745c59b | 2340 | HOST_WIDE_INT intval; |
2341 | ||
87ad11b0 | 2342 | if (GET_CODE (operands[0]) == MEM) |
2343 | return "stw %r1,%0"; | |
3745c59b | 2344 | if (GET_CODE (operands[1]) == MEM) |
87ad11b0 | 2345 | return "ldw %1,%0"; |
3745c59b | 2346 | if (GET_CODE (operands[1]) == CONST_DOUBLE) |
9d5108ea | 2347 | { |
3745c59b | 2348 | long i; |
9d5108ea | 2349 | |
ecf2283d | 2350 | gcc_assert (GET_MODE (operands[1]) == SFmode); |
9d5108ea | 2351 | |
3745c59b | 2352 | /* Translate the CONST_DOUBLE to a CONST_INT with the same target |
2353 | bit pattern. */ | |
945f7b03 | 2354 | REAL_VALUE_TO_TARGET_SINGLE (*CONST_DOUBLE_REAL_VALUE (operands[1]), i); |
9d5108ea | 2355 | |
3745c59b | 2356 | operands[1] = GEN_INT (i); |
2357 | /* Fall through to CONST_INT case. */ | |
2358 | } | |
2359 | if (GET_CODE (operands[1]) == CONST_INT) | |
9d5108ea | 2360 | { |
3745c59b | 2361 | intval = INTVAL (operands[1]); |
2362 | ||
2363 | if (VAL_14_BITS_P (intval)) | |
2364 | return "ldi %1,%0"; | |
2365 | else if ((intval & 0x7ff) == 0) | |
2366 | return "ldil L'%1,%0"; | |
e202682d | 2367 | else if (pa_zdepi_cint_p (intval)) |
e4065f95 | 2368 | return "{zdepi %Z1,%0|depwi,z %Z1,%0}"; |
9d5108ea | 2369 | else |
2370 | return "ldil L'%1,%0\n\tldo R'%1(%0),%0"; | |
2371 | } | |
87ad11b0 | 2372 | return "copy %1,%0"; |
2373 | } | |
2374 | \f | |
2375 | ||
201f01e9 | 2376 | /* Compute position (in OP[1]) and width (in OP[2]) |
2377 | useful for copying IMM to a register using the zdepi | |
2378 | instructions. Store the immediate value to insert in OP[0]. */ | |
611a88e1 | 2379 | static void |
5c1d8983 | 2380 | compute_zdepwi_operands (unsigned HOST_WIDE_INT imm, unsigned *op) |
7e10ba53 | 2381 | { |
e057641f | 2382 | int lsb, len; |
7e10ba53 | 2383 | |
e057641f | 2384 | /* Find the least significant set bit in IMM. */ |
2385 | for (lsb = 0; lsb < 32; lsb++) | |
7e10ba53 | 2386 | { |
e057641f | 2387 | if ((imm & 1) != 0) |
7e10ba53 | 2388 | break; |
e057641f | 2389 | imm >>= 1; |
7e10ba53 | 2390 | } |
2391 | ||
e057641f | 2392 | /* Choose variants based on *sign* of the 5-bit field. */ |
2393 | if ((imm & 0x10) == 0) | |
2394 | len = (lsb <= 28) ? 4 : 32 - lsb; | |
7e10ba53 | 2395 | else |
2396 | { | |
e057641f | 2397 | /* Find the width of the bitstring in IMM. */ |
eab96f1c | 2398 | for (len = 5; len < 32 - lsb; len++) |
7e10ba53 | 2399 | { |
eab96f1c | 2400 | if ((imm & ((unsigned HOST_WIDE_INT) 1 << len)) == 0) |
7e10ba53 | 2401 | break; |
7e10ba53 | 2402 | } |
2403 | ||
e057641f | 2404 | /* Sign extend IMM as a 5-bit value. */ |
2405 | imm = (imm & 0xf) - 0x10; | |
7e10ba53 | 2406 | } |
2407 | ||
42faba01 | 2408 | op[0] = imm; |
2409 | op[1] = 31 - lsb; | |
2410 | op[2] = len; | |
7e10ba53 | 2411 | } |
2412 | ||
5e3c5739 | 2413 | /* Compute position (in OP[1]) and width (in OP[2]) |
2414 | useful for copying IMM to a register using the depdi,z | |
2415 | instructions. Store the immediate value to insert in OP[0]. */ | |
e202682d | 2416 | |
2417 | static void | |
5c1d8983 | 2418 | compute_zdepdi_operands (unsigned HOST_WIDE_INT imm, unsigned *op) |
5e3c5739 | 2419 | { |
eab96f1c | 2420 | int lsb, len, maxlen; |
2421 | ||
2422 | maxlen = MIN (HOST_BITS_PER_WIDE_INT, 64); | |
5e3c5739 | 2423 | |
2424 | /* Find the least significant set bit in IMM. */ | |
eab96f1c | 2425 | for (lsb = 0; lsb < maxlen; lsb++) |
5e3c5739 | 2426 | { |
2427 | if ((imm & 1) != 0) | |
2428 | break; | |
2429 | imm >>= 1; | |
2430 | } | |
2431 | ||
2432 | /* Choose variants based on *sign* of the 5-bit field. */ | |
2433 | if ((imm & 0x10) == 0) | |
eab96f1c | 2434 | len = (lsb <= maxlen - 4) ? 4 : maxlen - lsb; |
5e3c5739 | 2435 | else |
2436 | { | |
2437 | /* Find the width of the bitstring in IMM. */ | |
eab96f1c | 2438 | for (len = 5; len < maxlen - lsb; len++) |
5e3c5739 | 2439 | { |
ea52c577 | 2440 | if ((imm & ((unsigned HOST_WIDE_INT) 1 << len)) == 0) |
5e3c5739 | 2441 | break; |
2442 | } | |
2443 | ||
eab96f1c | 2444 | /* Extend length if host is narrow and IMM is negative. */ |
2445 | if (HOST_BITS_PER_WIDE_INT == 32 && len == maxlen - lsb) | |
2446 | len += 32; | |
2447 | ||
5e3c5739 | 2448 | /* Sign extend IMM as a 5-bit value. */ |
2449 | imm = (imm & 0xf) - 0x10; | |
2450 | } | |
2451 | ||
2452 | op[0] = imm; | |
2453 | op[1] = 63 - lsb; | |
2454 | op[2] = len; | |
2455 | } | |
2456 | ||
87ad11b0 | 2457 | /* Output assembler code to perform a doubleword move insn |
2458 | with operands OPERANDS. */ | |
2459 | ||
611a88e1 | 2460 | const char * |
e202682d | 2461 | pa_output_move_double (rtx *operands) |
87ad11b0 | 2462 | { |
2463 | enum { REGOP, OFFSOP, MEMOP, CNSTOP, RNDOP } optype0, optype1; | |
2464 | rtx latehalf[2]; | |
2465 | rtx addreg0 = 0, addreg1 = 0; | |
7738a18b | 2466 | int highonly = 0; |
87ad11b0 | 2467 | |
2468 | /* First classify both operands. */ | |
2469 | ||
2470 | if (REG_P (operands[0])) | |
2471 | optype0 = REGOP; | |
2472 | else if (offsettable_memref_p (operands[0])) | |
2473 | optype0 = OFFSOP; | |
2474 | else if (GET_CODE (operands[0]) == MEM) | |
2475 | optype0 = MEMOP; | |
2476 | else | |
2477 | optype0 = RNDOP; | |
2478 | ||
2479 | if (REG_P (operands[1])) | |
2480 | optype1 = REGOP; | |
2481 | else if (CONSTANT_P (operands[1])) | |
2482 | optype1 = CNSTOP; | |
2483 | else if (offsettable_memref_p (operands[1])) | |
2484 | optype1 = OFFSOP; | |
2485 | else if (GET_CODE (operands[1]) == MEM) | |
2486 | optype1 = MEMOP; | |
2487 | else | |
2488 | optype1 = RNDOP; | |
2489 | ||
2490 | /* Check for the cases that the operand constraints are not | |
ecf2283d | 2491 | supposed to allow to happen. */ |
2492 | gcc_assert (optype0 == REGOP || optype1 == REGOP); | |
87ad11b0 | 2493 | |
e106b699 | 2494 | /* Handle copies between general and floating registers. */ |
2495 | ||
2496 | if (optype0 == REGOP && optype1 == REGOP | |
2497 | && FP_REG_P (operands[0]) ^ FP_REG_P (operands[1])) | |
2498 | { | |
2499 | if (FP_REG_P (operands[0])) | |
2500 | { | |
2501 | output_asm_insn ("{stws|stw} %1,-16(%%sp)", operands); | |
2502 | output_asm_insn ("{stws|stw} %R1,-12(%%sp)", operands); | |
2503 | return "{fldds|fldd} -16(%%sp),%0"; | |
2504 | } | |
2505 | else | |
2506 | { | |
2507 | output_asm_insn ("{fstds|fstd} %1,-16(%%sp)", operands); | |
2508 | output_asm_insn ("{ldws|ldw} -16(%%sp),%0", operands); | |
2509 | return "{ldws|ldw} -12(%%sp),%R0"; | |
2510 | } | |
2511 | } | |
2512 | ||
87ad11b0 | 2513 | /* Handle auto decrementing and incrementing loads and stores |
2514 | specifically, since the structure of the function doesn't work | |
2515 | for them without major modification. Do it better when we learn | |
2516 | this port about the general inc/dec addressing of PA. | |
2517 | (This was written by tege. Chide him if it doesn't work.) */ | |
2518 | ||
2519 | if (optype0 == MEMOP) | |
2520 | { | |
1df0058a | 2521 | /* We have to output the address syntax ourselves, since print_operand |
2522 | doesn't deal with the addresses we want to use. Fix this later. */ | |
2523 | ||
87ad11b0 | 2524 | rtx addr = XEXP (operands[0], 0); |
1df0058a | 2525 | if (GET_CODE (addr) == POST_INC || GET_CODE (addr) == POST_DEC) |
87ad11b0 | 2526 | { |
ad851752 | 2527 | rtx high_reg = gen_rtx_SUBREG (SImode, operands[1], 0); |
1df0058a | 2528 | |
2529 | operands[0] = XEXP (addr, 0); | |
ecf2283d | 2530 | gcc_assert (GET_CODE (operands[1]) == REG |
2531 | && GET_CODE (operands[0]) == REG); | |
1df0058a | 2532 | |
ecf2283d | 2533 | gcc_assert (!reg_overlap_mentioned_p (high_reg, addr)); |
2534 | ||
2535 | /* No overlap between high target register and address | |
2536 | register. (We do this in a non-obvious way to | |
2537 | save a register file writeback) */ | |
2538 | if (GET_CODE (addr) == POST_INC) | |
2539 | return "{stws|stw},ma %1,8(%0)\n\tstw %R1,-4(%0)"; | |
2540 | return "{stws|stw},ma %1,-8(%0)\n\tstw %R1,12(%0)"; | |
a3217f65 | 2541 | } |
1df0058a | 2542 | else if (GET_CODE (addr) == PRE_INC || GET_CODE (addr) == PRE_DEC) |
a3217f65 | 2543 | { |
ad851752 | 2544 | rtx high_reg = gen_rtx_SUBREG (SImode, operands[1], 0); |
1df0058a | 2545 | |
2546 | operands[0] = XEXP (addr, 0); | |
ecf2283d | 2547 | gcc_assert (GET_CODE (operands[1]) == REG |
2548 | && GET_CODE (operands[0]) == REG); | |
2549 | ||
2550 | gcc_assert (!reg_overlap_mentioned_p (high_reg, addr)); | |
2551 | /* No overlap between high target register and address | |
2552 | register. (We do this in a non-obvious way to save a | |
2553 | register file writeback) */ | |
2554 | if (GET_CODE (addr) == PRE_INC) | |
2555 | return "{stws|stw},mb %1,8(%0)\n\tstw %R1,4(%0)"; | |
2556 | return "{stws|stw},mb %1,-8(%0)\n\tstw %R1,4(%0)"; | |
87ad11b0 | 2557 | } |
2558 | } | |
2559 | if (optype1 == MEMOP) | |
2560 | { | |
2561 | /* We have to output the address syntax ourselves, since print_operand | |
2562 | doesn't deal with the addresses we want to use. Fix this later. */ | |
2563 | ||
2564 | rtx addr = XEXP (operands[1], 0); | |
2565 | if (GET_CODE (addr) == POST_INC || GET_CODE (addr) == POST_DEC) | |
2566 | { | |
ad851752 | 2567 | rtx high_reg = gen_rtx_SUBREG (SImode, operands[0], 0); |
87ad11b0 | 2568 | |
2569 | operands[1] = XEXP (addr, 0); | |
ecf2283d | 2570 | gcc_assert (GET_CODE (operands[0]) == REG |
2571 | && GET_CODE (operands[1]) == REG); | |
87ad11b0 | 2572 | |
2573 | if (!reg_overlap_mentioned_p (high_reg, addr)) | |
2574 | { | |
2575 | /* No overlap between high target register and address | |
3857fa62 | 2576 | register. (We do this in a non-obvious way to |
87ad11b0 | 2577 | save a register file writeback) */ |
2578 | if (GET_CODE (addr) == POST_INC) | |
e4065f95 | 2579 | return "{ldws|ldw},ma 8(%1),%0\n\tldw -4(%1),%R0"; |
01fd4b49 | 2580 | return "{ldws|ldw},ma -8(%1),%0\n\tldw 12(%1),%R0"; |
87ad11b0 | 2581 | } |
2582 | else | |
2583 | { | |
2584 | /* This is an undefined situation. We should load into the | |
2585 | address register *and* update that register. Probably | |
2586 | we don't need to handle this at all. */ | |
2587 | if (GET_CODE (addr) == POST_INC) | |
e4065f95 | 2588 | return "ldw 4(%1),%R0\n\t{ldws|ldw},ma 8(%1),%0"; |
2589 | return "ldw 4(%1),%R0\n\t{ldws|ldw},ma -8(%1),%0"; | |
87ad11b0 | 2590 | } |
2591 | } | |
2592 | else if (GET_CODE (addr) == PRE_INC || GET_CODE (addr) == PRE_DEC) | |
2593 | { | |
ad851752 | 2594 | rtx high_reg = gen_rtx_SUBREG (SImode, operands[0], 0); |
87ad11b0 | 2595 | |
2596 | operands[1] = XEXP (addr, 0); | |
ecf2283d | 2597 | gcc_assert (GET_CODE (operands[0]) == REG |
2598 | && GET_CODE (operands[1]) == REG); | |
87ad11b0 | 2599 | |
2600 | if (!reg_overlap_mentioned_p (high_reg, addr)) | |
2601 | { | |
2602 | /* No overlap between high target register and address | |
3857fa62 | 2603 | register. (We do this in a non-obvious way to |
87ad11b0 | 2604 | save a register file writeback) */ |
2605 | if (GET_CODE (addr) == PRE_INC) | |
e4065f95 | 2606 | return "{ldws|ldw},mb 8(%1),%0\n\tldw 4(%1),%R0"; |
2607 | return "{ldws|ldw},mb -8(%1),%0\n\tldw 4(%1),%R0"; | |
87ad11b0 | 2608 | } |
2609 | else | |
2610 | { | |
2611 | /* This is an undefined situation. We should load into the | |
2612 | address register *and* update that register. Probably | |
2613 | we don't need to handle this at all. */ | |
2614 | if (GET_CODE (addr) == PRE_INC) | |
e4065f95 | 2615 | return "ldw 12(%1),%R0\n\t{ldws|ldw},mb 8(%1),%0"; |
2616 | return "ldw -4(%1),%R0\n\t{ldws|ldw},mb -8(%1),%0"; | |
87ad11b0 | 2617 | } |
2618 | } | |
12b02046 | 2619 | else if (GET_CODE (addr) == PLUS |
2620 | && GET_CODE (XEXP (addr, 0)) == MULT) | |
2621 | { | |
b2f8bd14 | 2622 | rtx xoperands[4]; |
12b02046 | 2623 | |
1e237088 | 2624 | /* Load address into left half of destination register. */ |
2625 | xoperands[0] = gen_rtx_SUBREG (SImode, operands[0], 0); | |
2626 | xoperands[1] = XEXP (addr, 1); | |
2627 | xoperands[2] = XEXP (XEXP (addr, 0), 0); | |
2628 | xoperands[3] = XEXP (XEXP (addr, 0), 1); | |
2629 | output_asm_insn ("{sh%O3addl %2,%1,%0|shladd,l %2,%O3,%1,%0}", | |
2630 | xoperands); | |
2631 | return "ldw 4(%0),%R0\n\tldw 0(%0),%0"; | |
2632 | } | |
2633 | else if (GET_CODE (addr) == PLUS | |
2634 | && REG_P (XEXP (addr, 0)) | |
2635 | && REG_P (XEXP (addr, 1))) | |
2636 | { | |
2637 | rtx xoperands[3]; | |
2638 | ||
2639 | /* Load address into left half of destination register. */ | |
2640 | xoperands[0] = gen_rtx_SUBREG (SImode, operands[0], 0); | |
2641 | xoperands[1] = XEXP (addr, 0); | |
2642 | xoperands[2] = XEXP (addr, 1); | |
2643 | output_asm_insn ("{addl|add,l} %1,%2,%0", | |
2644 | xoperands); | |
2645 | return "ldw 4(%0),%R0\n\tldw 0(%0),%0"; | |
12b02046 | 2646 | } |
87ad11b0 | 2647 | } |
2648 | ||
2649 | /* If an operand is an unoffsettable memory ref, find a register | |
2650 | we can increment temporarily to make it refer to the second word. */ | |
2651 | ||
2652 | if (optype0 == MEMOP) | |
2653 | addreg0 = find_addr_reg (XEXP (operands[0], 0)); | |
2654 | ||
2655 | if (optype1 == MEMOP) | |
2656 | addreg1 = find_addr_reg (XEXP (operands[1], 0)); | |
2657 | ||
2658 | /* Ok, we can do one word at a time. | |
2659 | Normally we do the low-numbered word first. | |
2660 | ||
2661 | In either case, set up in LATEHALF the operands to use | |
2662 | for the high-numbered word and in some cases alter the | |
2663 | operands in OPERANDS to be suitable for the low-numbered word. */ | |
2664 | ||
2665 | if (optype0 == REGOP) | |
ad851752 | 2666 | latehalf[0] = gen_rtx_REG (SImode, REGNO (operands[0]) + 1); |
87ad11b0 | 2667 | else if (optype0 == OFFSOP) |
23a61b5a | 2668 | latehalf[0] = adjust_address_nv (operands[0], SImode, 4); |
87ad11b0 | 2669 | else |
2670 | latehalf[0] = operands[0]; | |
2671 | ||
2672 | if (optype1 == REGOP) | |
ad851752 | 2673 | latehalf[1] = gen_rtx_REG (SImode, REGNO (operands[1]) + 1); |
87ad11b0 | 2674 | else if (optype1 == OFFSOP) |
23a61b5a | 2675 | latehalf[1] = adjust_address_nv (operands[1], SImode, 4); |
87ad11b0 | 2676 | else if (optype1 == CNSTOP) |
7738a18b | 2677 | { |
2678 | if (GET_CODE (operands[1]) == HIGH) | |
2679 | { | |
2680 | operands[1] = XEXP (operands[1], 0); | |
2681 | highonly = 1; | |
2682 | } | |
2683 | split_double (operands[1], &operands[1], &latehalf[1]); | |
2684 | } | |
87ad11b0 | 2685 | else |
2686 | latehalf[1] = operands[1]; | |
2687 | ||
2688 | /* If the first move would clobber the source of the second one, | |
2689 | do them in the other order. | |
2690 | ||
cf489d53 | 2691 | This can happen in two cases: |
87ad11b0 | 2692 | |
cf489d53 | 2693 | mem -> register where the first half of the destination register |
2694 | is the same register used in the memory's address. Reload | |
2695 | can create such insns. | |
87ad11b0 | 2696 | |
cf489d53 | 2697 | mem in this case will be either register indirect or register |
9840d99d | 2698 | indirect plus a valid offset. |
cf489d53 | 2699 | |
2700 | register -> register move where REGNO(dst) == REGNO(src + 1) | |
9840d99d | 2701 | someone (Tim/Tege?) claimed this can happen for parameter loads. |
cf489d53 | 2702 | |
2703 | Handle mem -> register case first. */ | |
2704 | if (optype0 == REGOP | |
2705 | && (optype1 == MEMOP || optype1 == OFFSOP) | |
2ec77a7c | 2706 | && refers_to_regno_p (REGNO (operands[0]), operands[1])) |
87ad11b0 | 2707 | { |
87ad11b0 | 2708 | /* Do the late half first. */ |
2709 | if (addreg1) | |
6a5d085a | 2710 | output_asm_insn ("ldo 4(%0),%0", &addreg1); |
e202682d | 2711 | output_asm_insn (pa_singlemove_string (latehalf), latehalf); |
cf489d53 | 2712 | |
2713 | /* Then clobber. */ | |
87ad11b0 | 2714 | if (addreg1) |
6a5d085a | 2715 | output_asm_insn ("ldo -4(%0),%0", &addreg1); |
e202682d | 2716 | return pa_singlemove_string (operands); |
87ad11b0 | 2717 | } |
2718 | ||
cf489d53 | 2719 | /* Now handle register -> register case. */ |
c4fa5937 | 2720 | if (optype0 == REGOP && optype1 == REGOP |
2721 | && REGNO (operands[0]) == REGNO (operands[1]) + 1) | |
2722 | { | |
e202682d | 2723 | output_asm_insn (pa_singlemove_string (latehalf), latehalf); |
2724 | return pa_singlemove_string (operands); | |
c4fa5937 | 2725 | } |
2726 | ||
87ad11b0 | 2727 | /* Normal case: do the two words, low-numbered first. */ |
2728 | ||
e202682d | 2729 | output_asm_insn (pa_singlemove_string (operands), operands); |
87ad11b0 | 2730 | |
2731 | /* Make any unoffsettable addresses point at high-numbered word. */ | |
2732 | if (addreg0) | |
6a5d085a | 2733 | output_asm_insn ("ldo 4(%0),%0", &addreg0); |
87ad11b0 | 2734 | if (addreg1) |
6a5d085a | 2735 | output_asm_insn ("ldo 4(%0),%0", &addreg1); |
87ad11b0 | 2736 | |
7738a18b | 2737 | /* Do high-numbered word. */ |
2738 | if (highonly) | |
2739 | output_asm_insn ("ldil L'%1,%0", latehalf); | |
2740 | else | |
2741 | output_asm_insn (pa_singlemove_string (latehalf), latehalf); | |
87ad11b0 | 2742 | |
2743 | /* Undo the adds we just did. */ | |
2744 | if (addreg0) | |
6a5d085a | 2745 | output_asm_insn ("ldo -4(%0),%0", &addreg0); |
87ad11b0 | 2746 | if (addreg1) |
6a5d085a | 2747 | output_asm_insn ("ldo -4(%0),%0", &addreg1); |
87ad11b0 | 2748 | |
2749 | return ""; | |
2750 | } | |
2751 | \f | |
611a88e1 | 2752 | const char * |
e202682d | 2753 | pa_output_fp_move_double (rtx *operands) |
87ad11b0 | 2754 | { |
2755 | if (FP_REG_P (operands[0])) | |
2756 | { | |
6d36483b | 2757 | if (FP_REG_P (operands[1]) |
891b55b4 | 2758 | || operands[1] == CONST0_RTX (GET_MODE (operands[0]))) |
c6ae275c | 2759 | output_asm_insn ("fcpy,dbl %f1,%0", operands); |
6d36483b | 2760 | else |
27ef382d | 2761 | output_asm_insn ("fldd%F1 %1,%0", operands); |
87ad11b0 | 2762 | } |
2763 | else if (FP_REG_P (operands[1])) | |
2764 | { | |
27ef382d | 2765 | output_asm_insn ("fstd%F0 %1,%0", operands); |
87ad11b0 | 2766 | } |
ecf2283d | 2767 | else |
891b55b4 | 2768 | { |
ecf2283d | 2769 | rtx xoperands[2]; |
2770 | ||
2771 | gcc_assert (operands[1] == CONST0_RTX (GET_MODE (operands[0]))); | |
2772 | ||
6d36483b | 2773 | /* This is a pain. You have to be prepared to deal with an |
01cc3b75 | 2774 | arbitrary address here including pre/post increment/decrement. |
891b55b4 | 2775 | |
2776 | so avoid this in the MD. */ | |
ecf2283d | 2777 | gcc_assert (GET_CODE (operands[0]) == REG); |
2778 | ||
2779 | xoperands[1] = gen_rtx_REG (SImode, REGNO (operands[0]) + 1); | |
2780 | xoperands[0] = operands[0]; | |
2781 | output_asm_insn ("copy %%r0,%0\n\tcopy %%r0,%1", xoperands); | |
891b55b4 | 2782 | } |
87ad11b0 | 2783 | return ""; |
2784 | } | |
2785 | \f | |
2786 | /* Return a REG that occurs in ADDR with coefficient 1. | |
2787 | ADDR can be effectively incremented by incrementing REG. */ | |
2788 | ||
2789 | static rtx | |
5c1d8983 | 2790 | find_addr_reg (rtx addr) |
87ad11b0 | 2791 | { |
2792 | while (GET_CODE (addr) == PLUS) | |
2793 | { | |
2794 | if (GET_CODE (XEXP (addr, 0)) == REG) | |
2795 | addr = XEXP (addr, 0); | |
2796 | else if (GET_CODE (XEXP (addr, 1)) == REG) | |
2797 | addr = XEXP (addr, 1); | |
2798 | else if (CONSTANT_P (XEXP (addr, 0))) | |
2799 | addr = XEXP (addr, 1); | |
2800 | else if (CONSTANT_P (XEXP (addr, 1))) | |
2801 | addr = XEXP (addr, 0); | |
2802 | else | |
ecf2283d | 2803 | gcc_unreachable (); |
87ad11b0 | 2804 | } |
ecf2283d | 2805 | gcc_assert (GET_CODE (addr) == REG); |
2806 | return addr; | |
87ad11b0 | 2807 | } |
2808 | ||
87ad11b0 | 2809 | /* Emit code to perform a block move. |
2810 | ||
87ad11b0 | 2811 | OPERANDS[0] is the destination pointer as a REG, clobbered. |
2812 | OPERANDS[1] is the source pointer as a REG, clobbered. | |
42819d4e | 2813 | OPERANDS[2] is a register for temporary storage. |
87ad11b0 | 2814 | OPERANDS[3] is a register for temporary storage. |
a7e1bb24 | 2815 | OPERANDS[4] is the size as a CONST_INT |
9840d99d | 2816 | OPERANDS[5] is the alignment safe to use, as a CONST_INT. |
5aedf60c | 2817 | OPERANDS[6] is another temporary register. */ |
87ad11b0 | 2818 | |
611a88e1 | 2819 | const char * |
e202682d | 2820 | pa_output_block_move (rtx *operands, int size_is_constant ATTRIBUTE_UNUSED) |
87ad11b0 | 2821 | { |
2822 | int align = INTVAL (operands[5]); | |
42819d4e | 2823 | unsigned long n_bytes = INTVAL (operands[4]); |
87ad11b0 | 2824 | |
a7e1bb24 | 2825 | /* We can't move more than a word at a time because the PA |
87ad11b0 | 2826 | has no longer integer move insns. (Could use fp mem ops?) */ |
a7e1bb24 | 2827 | if (align > (TARGET_64BIT ? 8 : 4)) |
2828 | align = (TARGET_64BIT ? 8 : 4); | |
87ad11b0 | 2829 | |
42819d4e | 2830 | /* Note that we know each loop below will execute at least twice |
2831 | (else we would have open-coded the copy). */ | |
2832 | switch (align) | |
87ad11b0 | 2833 | { |
a7e1bb24 | 2834 | case 8: |
2835 | /* Pre-adjust the loop counter. */ | |
2836 | operands[4] = GEN_INT (n_bytes - 16); | |
2837 | output_asm_insn ("ldi %4,%2", operands); | |
2838 | ||
2839 | /* Copying loop. */ | |
2840 | output_asm_insn ("ldd,ma 8(%1),%3", operands); | |
2841 | output_asm_insn ("ldd,ma 8(%1),%6", operands); | |
2842 | output_asm_insn ("std,ma %3,8(%0)", operands); | |
2843 | output_asm_insn ("addib,>= -16,%2,.-12", operands); | |
2844 | output_asm_insn ("std,ma %6,8(%0)", operands); | |
2845 | ||
2846 | /* Handle the residual. There could be up to 7 bytes of | |
2847 | residual to copy! */ | |
2848 | if (n_bytes % 16 != 0) | |
2849 | { | |
2850 | operands[4] = GEN_INT (n_bytes % 8); | |
2851 | if (n_bytes % 16 >= 8) | |
2852 | output_asm_insn ("ldd,ma 8(%1),%3", operands); | |
2853 | if (n_bytes % 8 != 0) | |
2854 | output_asm_insn ("ldd 0(%1),%6", operands); | |
2855 | if (n_bytes % 16 >= 8) | |
2856 | output_asm_insn ("std,ma %3,8(%0)", operands); | |
2857 | if (n_bytes % 8 != 0) | |
2858 | output_asm_insn ("stdby,e %6,%4(%0)", operands); | |
2859 | } | |
2860 | return ""; | |
2861 | ||
42819d4e | 2862 | case 4: |
2863 | /* Pre-adjust the loop counter. */ | |
2864 | operands[4] = GEN_INT (n_bytes - 8); | |
2865 | output_asm_insn ("ldi %4,%2", operands); | |
2866 | ||
2867 | /* Copying loop. */ | |
e4065f95 | 2868 | output_asm_insn ("{ldws|ldw},ma 4(%1),%3", operands); |
2869 | output_asm_insn ("{ldws|ldw},ma 4(%1),%6", operands); | |
2870 | output_asm_insn ("{stws|stw},ma %3,4(%0)", operands); | |
42819d4e | 2871 | output_asm_insn ("addib,>= -8,%2,.-12", operands); |
e4065f95 | 2872 | output_asm_insn ("{stws|stw},ma %6,4(%0)", operands); |
42819d4e | 2873 | |
2874 | /* Handle the residual. There could be up to 7 bytes of | |
2875 | residual to copy! */ | |
2876 | if (n_bytes % 8 != 0) | |
2877 | { | |
2878 | operands[4] = GEN_INT (n_bytes % 4); | |
2879 | if (n_bytes % 8 >= 4) | |
e4065f95 | 2880 | output_asm_insn ("{ldws|ldw},ma 4(%1),%3", operands); |
42819d4e | 2881 | if (n_bytes % 4 != 0) |
34940871 | 2882 | output_asm_insn ("ldw 0(%1),%6", operands); |
42819d4e | 2883 | if (n_bytes % 8 >= 4) |
e4065f95 | 2884 | output_asm_insn ("{stws|stw},ma %3,4(%0)", operands); |
42819d4e | 2885 | if (n_bytes % 4 != 0) |
e4065f95 | 2886 | output_asm_insn ("{stbys|stby},e %6,%4(%0)", operands); |
42819d4e | 2887 | } |
2888 | return ""; | |
87ad11b0 | 2889 | |
42819d4e | 2890 | case 2: |
2891 | /* Pre-adjust the loop counter. */ | |
2892 | operands[4] = GEN_INT (n_bytes - 4); | |
2893 | output_asm_insn ("ldi %4,%2", operands); | |
87ad11b0 | 2894 | |
42819d4e | 2895 | /* Copying loop. */ |
e4065f95 | 2896 | output_asm_insn ("{ldhs|ldh},ma 2(%1),%3", operands); |
2897 | output_asm_insn ("{ldhs|ldh},ma 2(%1),%6", operands); | |
2898 | output_asm_insn ("{sths|sth},ma %3,2(%0)", operands); | |
42819d4e | 2899 | output_asm_insn ("addib,>= -4,%2,.-12", operands); |
e4065f95 | 2900 | output_asm_insn ("{sths|sth},ma %6,2(%0)", operands); |
87ad11b0 | 2901 | |
42819d4e | 2902 | /* Handle the residual. */ |
2903 | if (n_bytes % 4 != 0) | |
2904 | { | |
2905 | if (n_bytes % 4 >= 2) | |
e4065f95 | 2906 | output_asm_insn ("{ldhs|ldh},ma 2(%1),%3", operands); |
42819d4e | 2907 | if (n_bytes % 2 != 0) |
34940871 | 2908 | output_asm_insn ("ldb 0(%1),%6", operands); |
42819d4e | 2909 | if (n_bytes % 4 >= 2) |
e4065f95 | 2910 | output_asm_insn ("{sths|sth},ma %3,2(%0)", operands); |
42819d4e | 2911 | if (n_bytes % 2 != 0) |
34940871 | 2912 | output_asm_insn ("stb %6,0(%0)", operands); |
42819d4e | 2913 | } |
2914 | return ""; | |
87ad11b0 | 2915 | |
42819d4e | 2916 | case 1: |
2917 | /* Pre-adjust the loop counter. */ | |
2918 | operands[4] = GEN_INT (n_bytes - 2); | |
2919 | output_asm_insn ("ldi %4,%2", operands); | |
87ad11b0 | 2920 | |
42819d4e | 2921 | /* Copying loop. */ |
e4065f95 | 2922 | output_asm_insn ("{ldbs|ldb},ma 1(%1),%3", operands); |
2923 | output_asm_insn ("{ldbs|ldb},ma 1(%1),%6", operands); | |
2924 | output_asm_insn ("{stbs|stb},ma %3,1(%0)", operands); | |
42819d4e | 2925 | output_asm_insn ("addib,>= -2,%2,.-12", operands); |
e4065f95 | 2926 | output_asm_insn ("{stbs|stb},ma %6,1(%0)", operands); |
87ad11b0 | 2927 | |
42819d4e | 2928 | /* Handle the residual. */ |
2929 | if (n_bytes % 2 != 0) | |
2930 | { | |
34940871 | 2931 | output_asm_insn ("ldb 0(%1),%3", operands); |
2932 | output_asm_insn ("stb %3,0(%0)", operands); | |
42819d4e | 2933 | } |
2934 | return ""; | |
87ad11b0 | 2935 | |
42819d4e | 2936 | default: |
ecf2283d | 2937 | gcc_unreachable (); |
87ad11b0 | 2938 | } |
87ad11b0 | 2939 | } |
58e17b0b | 2940 | |
2941 | /* Count the number of insns necessary to handle this block move. | |
2942 | ||
2943 | Basic structure is the same as emit_block_move, except that we | |
2944 | count insns rather than emit them. */ | |
2945 | ||
611a88e1 | 2946 | static int |
89dcddd6 | 2947 | compute_movmem_length (rtx_insn *insn) |
58e17b0b | 2948 | { |
2949 | rtx pat = PATTERN (insn); | |
fc1fb057 | 2950 | unsigned int align = INTVAL (XEXP (XVECEXP (pat, 0, 7), 0)); |
2951 | unsigned long n_bytes = INTVAL (XEXP (XVECEXP (pat, 0, 6), 0)); | |
42819d4e | 2952 | unsigned int n_insns = 0; |
58e17b0b | 2953 | |
2954 | /* We can't move more than four bytes at a time because the PA | |
2955 | has no longer integer move insns. (Could use fp mem ops?) */ | |
a7e1bb24 | 2956 | if (align > (TARGET_64BIT ? 8 : 4)) |
2957 | align = (TARGET_64BIT ? 8 : 4); | |
58e17b0b | 2958 | |
79bfe6ae | 2959 | /* The basic copying loop. */ |
42819d4e | 2960 | n_insns = 6; |
58e17b0b | 2961 | |
42819d4e | 2962 | /* Residuals. */ |
2963 | if (n_bytes % (2 * align) != 0) | |
58e17b0b | 2964 | { |
79bfe6ae | 2965 | if ((n_bytes % (2 * align)) >= align) |
2966 | n_insns += 2; | |
2967 | ||
2968 | if ((n_bytes % align) != 0) | |
2969 | n_insns += 2; | |
58e17b0b | 2970 | } |
42819d4e | 2971 | |
2972 | /* Lengths are expressed in bytes now; each insn is 4 bytes. */ | |
2973 | return n_insns * 4; | |
58e17b0b | 2974 | } |
a7e1bb24 | 2975 | |
2976 | /* Emit code to perform a block clear. | |
2977 | ||
2978 | OPERANDS[0] is the destination pointer as a REG, clobbered. | |
2979 | OPERANDS[1] is a register for temporary storage. | |
2980 | OPERANDS[2] is the size as a CONST_INT | |
2981 | OPERANDS[3] is the alignment safe to use, as a CONST_INT. */ | |
2982 | ||
2983 | const char * | |
e202682d | 2984 | pa_output_block_clear (rtx *operands, int size_is_constant ATTRIBUTE_UNUSED) |
a7e1bb24 | 2985 | { |
2986 | int align = INTVAL (operands[3]); | |
2987 | unsigned long n_bytes = INTVAL (operands[2]); | |
2988 | ||
2989 | /* We can't clear more than a word at a time because the PA | |
2990 | has no longer integer move insns. */ | |
2991 | if (align > (TARGET_64BIT ? 8 : 4)) | |
2992 | align = (TARGET_64BIT ? 8 : 4); | |
2993 | ||
2994 | /* Note that we know each loop below will execute at least twice | |
2995 | (else we would have open-coded the copy). */ | |
2996 | switch (align) | |
2997 | { | |
2998 | case 8: | |
2999 | /* Pre-adjust the loop counter. */ | |
3000 | operands[2] = GEN_INT (n_bytes - 16); | |
3001 | output_asm_insn ("ldi %2,%1", operands); | |
3002 | ||
3003 | /* Loop. */ | |
3004 | output_asm_insn ("std,ma %%r0,8(%0)", operands); | |
3005 | output_asm_insn ("addib,>= -16,%1,.-4", operands); | |
3006 | output_asm_insn ("std,ma %%r0,8(%0)", operands); | |
3007 | ||
3008 | /* Handle the residual. There could be up to 7 bytes of | |
3009 | residual to copy! */ | |
3010 | if (n_bytes % 16 != 0) | |
3011 | { | |
3012 | operands[2] = GEN_INT (n_bytes % 8); | |
3013 | if (n_bytes % 16 >= 8) | |
3014 | output_asm_insn ("std,ma %%r0,8(%0)", operands); | |
3015 | if (n_bytes % 8 != 0) | |
3016 | output_asm_insn ("stdby,e %%r0,%2(%0)", operands); | |
3017 | } | |
3018 | return ""; | |
3019 | ||
3020 | case 4: | |
3021 | /* Pre-adjust the loop counter. */ | |
3022 | operands[2] = GEN_INT (n_bytes - 8); | |
3023 | output_asm_insn ("ldi %2,%1", operands); | |
3024 | ||
3025 | /* Loop. */ | |
3026 | output_asm_insn ("{stws|stw},ma %%r0,4(%0)", operands); | |
3027 | output_asm_insn ("addib,>= -8,%1,.-4", operands); | |
3028 | output_asm_insn ("{stws|stw},ma %%r0,4(%0)", operands); | |
3029 | ||
3030 | /* Handle the residual. There could be up to 7 bytes of | |
3031 | residual to copy! */ | |
3032 | if (n_bytes % 8 != 0) | |
3033 | { | |
3034 | operands[2] = GEN_INT (n_bytes % 4); | |
3035 | if (n_bytes % 8 >= 4) | |
3036 | output_asm_insn ("{stws|stw},ma %%r0,4(%0)", operands); | |
3037 | if (n_bytes % 4 != 0) | |
3038 | output_asm_insn ("{stbys|stby},e %%r0,%2(%0)", operands); | |
3039 | } | |
3040 | return ""; | |
3041 | ||
3042 | case 2: | |
3043 | /* Pre-adjust the loop counter. */ | |
3044 | operands[2] = GEN_INT (n_bytes - 4); | |
3045 | output_asm_insn ("ldi %2,%1", operands); | |
3046 | ||
3047 | /* Loop. */ | |
3048 | output_asm_insn ("{sths|sth},ma %%r0,2(%0)", operands); | |
3049 | output_asm_insn ("addib,>= -4,%1,.-4", operands); | |
3050 | output_asm_insn ("{sths|sth},ma %%r0,2(%0)", operands); | |
3051 | ||
3052 | /* Handle the residual. */ | |
3053 | if (n_bytes % 4 != 0) | |
3054 | { | |
3055 | if (n_bytes % 4 >= 2) | |
3056 | output_asm_insn ("{sths|sth},ma %%r0,2(%0)", operands); | |
3057 | if (n_bytes % 2 != 0) | |
3058 | output_asm_insn ("stb %%r0,0(%0)", operands); | |
3059 | } | |
3060 | return ""; | |
3061 | ||
3062 | case 1: | |
3063 | /* Pre-adjust the loop counter. */ | |
3064 | operands[2] = GEN_INT (n_bytes - 2); | |
3065 | output_asm_insn ("ldi %2,%1", operands); | |
3066 | ||
3067 | /* Loop. */ | |
3068 | output_asm_insn ("{stbs|stb},ma %%r0,1(%0)", operands); | |
3069 | output_asm_insn ("addib,>= -2,%1,.-4", operands); | |
3070 | output_asm_insn ("{stbs|stb},ma %%r0,1(%0)", operands); | |
3071 | ||
3072 | /* Handle the residual. */ | |
3073 | if (n_bytes % 2 != 0) | |
3074 | output_asm_insn ("stb %%r0,0(%0)", operands); | |
3075 | ||
3076 | return ""; | |
3077 | ||
3078 | default: | |
ecf2283d | 3079 | gcc_unreachable (); |
a7e1bb24 | 3080 | } |
3081 | } | |
3082 | ||
3083 | /* Count the number of insns necessary to handle this block move. | |
3084 | ||
3085 | Basic structure is the same as emit_block_move, except that we | |
3086 | count insns rather than emit them. */ | |
3087 | ||
3088 | static int | |
89dcddd6 | 3089 | compute_clrmem_length (rtx_insn *insn) |
a7e1bb24 | 3090 | { |
3091 | rtx pat = PATTERN (insn); | |
3092 | unsigned int align = INTVAL (XEXP (XVECEXP (pat, 0, 4), 0)); | |
3093 | unsigned long n_bytes = INTVAL (XEXP (XVECEXP (pat, 0, 3), 0)); | |
3094 | unsigned int n_insns = 0; | |
3095 | ||
3096 | /* We can't clear more than a word at a time because the PA | |
3097 | has no longer integer move insns. */ | |
3098 | if (align > (TARGET_64BIT ? 8 : 4)) | |
3099 | align = (TARGET_64BIT ? 8 : 4); | |
3100 | ||
3101 | /* The basic loop. */ | |
3102 | n_insns = 4; | |
3103 | ||
3104 | /* Residuals. */ | |
3105 | if (n_bytes % (2 * align) != 0) | |
3106 | { | |
3107 | if ((n_bytes % (2 * align)) >= align) | |
3108 | n_insns++; | |
3109 | ||
3110 | if ((n_bytes % align) != 0) | |
3111 | n_insns++; | |
3112 | } | |
3113 | ||
3114 | /* Lengths are expressed in bytes now; each insn is 4 bytes. */ | |
3115 | return n_insns * 4; | |
3116 | } | |
87ad11b0 | 3117 | \f |
3118 | ||
611a88e1 | 3119 | const char * |
e202682d | 3120 | pa_output_and (rtx *operands) |
e057641f | 3121 | { |
d6f01525 | 3122 | if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) != 0) |
e057641f | 3123 | { |
3745c59b | 3124 | unsigned HOST_WIDE_INT mask = INTVAL (operands[2]); |
e057641f | 3125 | int ls0, ls1, ms0, p, len; |
3126 | ||
3127 | for (ls0 = 0; ls0 < 32; ls0++) | |
3128 | if ((mask & (1 << ls0)) == 0) | |
3129 | break; | |
3130 | ||
3131 | for (ls1 = ls0; ls1 < 32; ls1++) | |
3132 | if ((mask & (1 << ls1)) != 0) | |
3133 | break; | |
3134 | ||
3135 | for (ms0 = ls1; ms0 < 32; ms0++) | |
3136 | if ((mask & (1 << ms0)) == 0) | |
3137 | break; | |
3138 | ||
ecf2283d | 3139 | gcc_assert (ms0 == 32); |
e057641f | 3140 | |
3141 | if (ls1 == 32) | |
3142 | { | |
3143 | len = ls0; | |
3144 | ||
ecf2283d | 3145 | gcc_assert (len); |
e057641f | 3146 | |
ef618fe4 | 3147 | operands[2] = GEN_INT (len); |
e4065f95 | 3148 | return "{extru|extrw,u} %1,31,%2,%0"; |
e057641f | 3149 | } |
3150 | else | |
3151 | { | |
3152 | /* We could use this `depi' for the case above as well, but `depi' | |
3153 | requires one more register file access than an `extru'. */ | |
3154 | ||
3155 | p = 31 - ls0; | |
3156 | len = ls1 - ls0; | |
3157 | ||
ef618fe4 | 3158 | operands[2] = GEN_INT (p); |
3159 | operands[3] = GEN_INT (len); | |
e4065f95 | 3160 | return "{depi|depwi} 0,%2,%3,%0"; |
e057641f | 3161 | } |
3162 | } | |
3163 | else | |
3164 | return "and %1,%2,%0"; | |
3165 | } | |
3166 | ||
5e3c5739 | 3167 | /* Return a string to perform a bitwise-and of operands[1] with operands[2] |
3168 | storing the result in operands[0]. */ | |
9aadea62 | 3169 | const char * |
e202682d | 3170 | pa_output_64bit_and (rtx *operands) |
5e3c5739 | 3171 | { |
3172 | if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) != 0) | |
3173 | { | |
3174 | unsigned HOST_WIDE_INT mask = INTVAL (operands[2]); | |
b7d86581 | 3175 | int ls0, ls1, ms0, p, len; |
5e3c5739 | 3176 | |
3177 | for (ls0 = 0; ls0 < HOST_BITS_PER_WIDE_INT; ls0++) | |
b7d86581 | 3178 | if ((mask & ((unsigned HOST_WIDE_INT) 1 << ls0)) == 0) |
5e3c5739 | 3179 | break; |
3180 | ||
3181 | for (ls1 = ls0; ls1 < HOST_BITS_PER_WIDE_INT; ls1++) | |
b7d86581 | 3182 | if ((mask & ((unsigned HOST_WIDE_INT) 1 << ls1)) != 0) |
5e3c5739 | 3183 | break; |
3184 | ||
3185 | for (ms0 = ls1; ms0 < HOST_BITS_PER_WIDE_INT; ms0++) | |
b7d86581 | 3186 | if ((mask & ((unsigned HOST_WIDE_INT) 1 << ms0)) == 0) |
5e3c5739 | 3187 | break; |
3188 | ||
ecf2283d | 3189 | gcc_assert (ms0 == HOST_BITS_PER_WIDE_INT); |
5e3c5739 | 3190 | |
3191 | if (ls1 == HOST_BITS_PER_WIDE_INT) | |
3192 | { | |
3193 | len = ls0; | |
3194 | ||
ecf2283d | 3195 | gcc_assert (len); |
5e3c5739 | 3196 | |
3197 | operands[2] = GEN_INT (len); | |
3198 | return "extrd,u %1,63,%2,%0"; | |
3199 | } | |
3200 | else | |
3201 | { | |
3202 | /* We could use this `depi' for the case above as well, but `depi' | |
3203 | requires one more register file access than an `extru'. */ | |
3204 | ||
3205 | p = 63 - ls0; | |
3206 | len = ls1 - ls0; | |
3207 | ||
3208 | operands[2] = GEN_INT (p); | |
3209 | operands[3] = GEN_INT (len); | |
3210 | return "depdi 0,%2,%3,%0"; | |
3211 | } | |
3212 | } | |
3213 | else | |
3214 | return "and %1,%2,%0"; | |
3215 | } | |
3216 | ||
611a88e1 | 3217 | const char * |
e202682d | 3218 | pa_output_ior (rtx *operands) |
e057641f | 3219 | { |
3745c59b | 3220 | unsigned HOST_WIDE_INT mask = INTVAL (operands[2]); |
57ed30e5 | 3221 | int bs0, bs1, p, len; |
6d36483b | 3222 | |
c9da5f4d | 3223 | if (INTVAL (operands[2]) == 0) |
3224 | return "copy %1,%0"; | |
e057641f | 3225 | |
c9da5f4d | 3226 | for (bs0 = 0; bs0 < 32; bs0++) |
3227 | if ((mask & (1 << bs0)) != 0) | |
3228 | break; | |
e057641f | 3229 | |
c9da5f4d | 3230 | for (bs1 = bs0; bs1 < 32; bs1++) |
3231 | if ((mask & (1 << bs1)) == 0) | |
3232 | break; | |
e057641f | 3233 | |
ecf2283d | 3234 | gcc_assert (bs1 == 32 || ((unsigned HOST_WIDE_INT) 1 << bs1) > mask); |
e057641f | 3235 | |
c9da5f4d | 3236 | p = 31 - bs0; |
3237 | len = bs1 - bs0; | |
e057641f | 3238 | |
ef618fe4 | 3239 | operands[2] = GEN_INT (p); |
3240 | operands[3] = GEN_INT (len); | |
e4065f95 | 3241 | return "{depi|depwi} -1,%2,%3,%0"; |
e057641f | 3242 | } |
5e3c5739 | 3243 | |
3244 | /* Return a string to perform a bitwise-and of operands[1] with operands[2] | |
3245 | storing the result in operands[0]. */ | |
9aadea62 | 3246 | const char * |
e202682d | 3247 | pa_output_64bit_ior (rtx *operands) |
5e3c5739 | 3248 | { |
3249 | unsigned HOST_WIDE_INT mask = INTVAL (operands[2]); | |
b7d86581 | 3250 | int bs0, bs1, p, len; |
5e3c5739 | 3251 | |
3252 | if (INTVAL (operands[2]) == 0) | |
3253 | return "copy %1,%0"; | |
3254 | ||
3255 | for (bs0 = 0; bs0 < HOST_BITS_PER_WIDE_INT; bs0++) | |
b7d86581 | 3256 | if ((mask & ((unsigned HOST_WIDE_INT) 1 << bs0)) != 0) |
5e3c5739 | 3257 | break; |
3258 | ||
3259 | for (bs1 = bs0; bs1 < HOST_BITS_PER_WIDE_INT; bs1++) | |
b7d86581 | 3260 | if ((mask & ((unsigned HOST_WIDE_INT) 1 << bs1)) == 0) |
5e3c5739 | 3261 | break; |
3262 | ||
ecf2283d | 3263 | gcc_assert (bs1 == HOST_BITS_PER_WIDE_INT |
3264 | || ((unsigned HOST_WIDE_INT) 1 << bs1) > mask); | |
5e3c5739 | 3265 | |
3266 | p = 63 - bs0; | |
3267 | len = bs1 - bs0; | |
3268 | ||
3269 | operands[2] = GEN_INT (p); | |
3270 | operands[3] = GEN_INT (len); | |
3271 | return "depdi -1,%2,%3,%0"; | |
3272 | } | |
e057641f | 3273 | \f |
58356836 | 3274 | /* Target hook for assembling integer objects. This code handles |
e678758c | 3275 | aligned SI and DI integers specially since function references |
3276 | must be preceded by P%. */ | |
58356836 | 3277 | |
3278 | static bool | |
5c1d8983 | 3279 | pa_assemble_integer (rtx x, unsigned int size, int aligned_p) |
58356836 | 3280 | { |
e678758c | 3281 | if (size == UNITS_PER_WORD |
3282 | && aligned_p | |
58356836 | 3283 | && function_label_operand (x, VOIDmode)) |
3284 | { | |
1c0165c8 | 3285 | fputs (size == 8? "\t.dword\t" : "\t.word\t", asm_out_file); |
3286 | ||
3287 | /* We don't want an OPD when generating fast indirect calls. */ | |
3288 | if (!TARGET_FAST_INDIRECT_CALLS) | |
3289 | fputs ("P%", asm_out_file); | |
3290 | ||
58356836 | 3291 | output_addr_const (asm_out_file, x); |
3292 | fputc ('\n', asm_out_file); | |
3293 | return true; | |
3294 | } | |
3295 | return default_assemble_integer (x, size, aligned_p); | |
3296 | } | |
3297 | \f | |
87ad11b0 | 3298 | /* Output an ascii string. */ |
57ed30e5 | 3299 | void |
e202682d | 3300 | pa_output_ascii (FILE *file, const char *p, int size) |
87ad11b0 | 3301 | { |
3302 | int i; | |
3303 | int chars_output; | |
5aedf60c | 3304 | unsigned char partial_output[16]; /* Max space 4 chars can occupy. */ |
87ad11b0 | 3305 | |
3306 | /* The HP assembler can only take strings of 256 characters at one | |
3307 | time. This is a limitation on input line length, *not* the | |
3308 | length of the string. Sigh. Even worse, it seems that the | |
3309 | restriction is in number of input characters (see \xnn & | |
3310 | \whatever). So we have to do this very carefully. */ | |
3311 | ||
9c0ac0fd | 3312 | fputs ("\t.STRING \"", file); |
87ad11b0 | 3313 | |
3314 | chars_output = 0; | |
3315 | for (i = 0; i < size; i += 4) | |
3316 | { | |
3317 | int co = 0; | |
3318 | int io = 0; | |
3319 | for (io = 0, co = 0; io < MIN (4, size - i); io++) | |
3320 | { | |
bf8aac3e | 3321 | register unsigned int c = (unsigned char) p[i + io]; |
87ad11b0 | 3322 | |
3323 | if (c == '\"' || c == '\\') | |
3324 | partial_output[co++] = '\\'; | |
3325 | if (c >= ' ' && c < 0177) | |
3326 | partial_output[co++] = c; | |
3327 | else | |
3328 | { | |
3329 | unsigned int hexd; | |
3330 | partial_output[co++] = '\\'; | |
3331 | partial_output[co++] = 'x'; | |
3332 | hexd = c / 16 - 0 + '0'; | |
3333 | if (hexd > '9') | |
3334 | hexd -= '9' - 'a' + 1; | |
3335 | partial_output[co++] = hexd; | |
3336 | hexd = c % 16 - 0 + '0'; | |
3337 | if (hexd > '9') | |
3338 | hexd -= '9' - 'a' + 1; | |
3339 | partial_output[co++] = hexd; | |
3340 | } | |
3341 | } | |
3342 | if (chars_output + co > 243) | |
3343 | { | |
9c0ac0fd | 3344 | fputs ("\"\n\t.STRING \"", file); |
87ad11b0 | 3345 | chars_output = 0; |
3346 | } | |
a584fe8a | 3347 | fwrite (partial_output, 1, (size_t) co, file); |
87ad11b0 | 3348 | chars_output += co; |
3349 | co = 0; | |
3350 | } | |
9c0ac0fd | 3351 | fputs ("\"\n", file); |
87ad11b0 | 3352 | } |
c533da59 | 3353 | |
3354 | /* Try to rewrite floating point comparisons & branches to avoid | |
3355 | useless add,tr insns. | |
3356 | ||
3357 | CHECK_NOTES is nonzero if we should examine REG_DEAD notes | |
3358 | to see if FPCC is dead. CHECK_NOTES is nonzero for the | |
3359 | first attempt to remove useless add,tr insns. It is zero | |
3360 | for the second pass as reorg sometimes leaves bogus REG_DEAD | |
3361 | notes lying around. | |
3362 | ||
3363 | When CHECK_NOTES is zero we can only eliminate add,tr insns | |
3364 | when there's a 1:1 correspondence between fcmp and ftest/fbranch | |
3365 | instructions. */ | |
611a88e1 | 3366 | static void |
5c1d8983 | 3367 | remove_useless_addtr_insns (int check_notes) |
c533da59 | 3368 | { |
50895eab | 3369 | rtx_insn *insn; |
c533da59 | 3370 | static int pass = 0; |
3371 | ||
3372 | /* This is fairly cheap, so always run it when optimizing. */ | |
3373 | if (optimize > 0) | |
3374 | { | |
3375 | int fcmp_count = 0; | |
3376 | int fbranch_count = 0; | |
3377 | ||
3378 | /* Walk all the insns in this function looking for fcmp & fbranch | |
3379 | instructions. Keep track of how many of each we find. */ | |
2efea8c0 | 3380 | for (insn = get_insns (); insn; insn = next_insn (insn)) |
c533da59 | 3381 | { |
3382 | rtx tmp; | |
3383 | ||
3384 | /* Ignore anything that isn't an INSN or a JUMP_INSN. */ | |
aa90bb35 | 3385 | if (! NONJUMP_INSN_P (insn) && ! JUMP_P (insn)) |
c533da59 | 3386 | continue; |
3387 | ||
3388 | tmp = PATTERN (insn); | |
3389 | ||
3390 | /* It must be a set. */ | |
3391 | if (GET_CODE (tmp) != SET) | |
3392 | continue; | |
3393 | ||
3394 | /* If the destination is CCFP, then we've found an fcmp insn. */ | |
3395 | tmp = SET_DEST (tmp); | |
3396 | if (GET_CODE (tmp) == REG && REGNO (tmp) == 0) | |
3397 | { | |
3398 | fcmp_count++; | |
3399 | continue; | |
3400 | } | |
9840d99d | 3401 | |
c533da59 | 3402 | tmp = PATTERN (insn); |
3403 | /* If this is an fbranch instruction, bump the fbranch counter. */ | |
3404 | if (GET_CODE (tmp) == SET | |
3405 | && SET_DEST (tmp) == pc_rtx | |
3406 | && GET_CODE (SET_SRC (tmp)) == IF_THEN_ELSE | |
3407 | && GET_CODE (XEXP (SET_SRC (tmp), 0)) == NE | |
3408 | && GET_CODE (XEXP (XEXP (SET_SRC (tmp), 0), 0)) == REG | |
3409 | && REGNO (XEXP (XEXP (SET_SRC (tmp), 0), 0)) == 0) | |
3410 | { | |
3411 | fbranch_count++; | |
3412 | continue; | |
3413 | } | |
3414 | } | |
3415 | ||
3416 | ||
3417 | /* Find all floating point compare + branch insns. If possible, | |
3418 | reverse the comparison & the branch to avoid add,tr insns. */ | |
2efea8c0 | 3419 | for (insn = get_insns (); insn; insn = next_insn (insn)) |
c533da59 | 3420 | { |
50895eab | 3421 | rtx tmp; |
3422 | rtx_insn *next; | |
c533da59 | 3423 | |
3424 | /* Ignore anything that isn't an INSN. */ | |
aa90bb35 | 3425 | if (! NONJUMP_INSN_P (insn)) |
c533da59 | 3426 | continue; |
3427 | ||
3428 | tmp = PATTERN (insn); | |
3429 | ||
3430 | /* It must be a set. */ | |
3431 | if (GET_CODE (tmp) != SET) | |
3432 | continue; | |
3433 | ||
3434 | /* The destination must be CCFP, which is register zero. */ | |
3435 | tmp = SET_DEST (tmp); | |
3436 | if (GET_CODE (tmp) != REG || REGNO (tmp) != 0) | |
3437 | continue; | |
3438 | ||
3439 | /* INSN should be a set of CCFP. | |
3440 | ||
3441 | See if the result of this insn is used in a reversed FP | |
3442 | conditional branch. If so, reverse our condition and | |
3443 | the branch. Doing so avoids useless add,tr insns. */ | |
3444 | next = next_insn (insn); | |
3445 | while (next) | |
3446 | { | |
3447 | /* Jumps, calls and labels stop our search. */ | |
aa90bb35 | 3448 | if (JUMP_P (next) || CALL_P (next) || LABEL_P (next)) |
c533da59 | 3449 | break; |
3450 | ||
3451 | /* As does another fcmp insn. */ | |
aa90bb35 | 3452 | if (NONJUMP_INSN_P (next) |
c533da59 | 3453 | && GET_CODE (PATTERN (next)) == SET |
3454 | && GET_CODE (SET_DEST (PATTERN (next))) == REG | |
3455 | && REGNO (SET_DEST (PATTERN (next))) == 0) | |
3456 | break; | |
3457 | ||
3458 | next = next_insn (next); | |
3459 | } | |
3460 | ||
3461 | /* Is NEXT_INSN a branch? */ | |
aa90bb35 | 3462 | if (next && JUMP_P (next)) |
c533da59 | 3463 | { |
3464 | rtx pattern = PATTERN (next); | |
3465 | ||
a361b456 | 3466 | /* If it a reversed fp conditional branch (e.g. uses add,tr) |
c533da59 | 3467 | and CCFP dies, then reverse our conditional and the branch |
3468 | to avoid the add,tr. */ | |
3469 | if (GET_CODE (pattern) == SET | |
3470 | && SET_DEST (pattern) == pc_rtx | |
3471 | && GET_CODE (SET_SRC (pattern)) == IF_THEN_ELSE | |
3472 | && GET_CODE (XEXP (SET_SRC (pattern), 0)) == NE | |
3473 | && GET_CODE (XEXP (XEXP (SET_SRC (pattern), 0), 0)) == REG | |
3474 | && REGNO (XEXP (XEXP (SET_SRC (pattern), 0), 0)) == 0 | |
3475 | && GET_CODE (XEXP (SET_SRC (pattern), 1)) == PC | |
3476 | && (fcmp_count == fbranch_count | |
3477 | || (check_notes | |
3478 | && find_regno_note (next, REG_DEAD, 0)))) | |
3479 | { | |
3480 | /* Reverse the branch. */ | |
3481 | tmp = XEXP (SET_SRC (pattern), 1); | |
3482 | XEXP (SET_SRC (pattern), 1) = XEXP (SET_SRC (pattern), 2); | |
3483 | XEXP (SET_SRC (pattern), 2) = tmp; | |
3484 | INSN_CODE (next) = -1; | |
3485 | ||
3486 | /* Reverse our condition. */ | |
3487 | tmp = PATTERN (insn); | |
3488 | PUT_CODE (XEXP (tmp, 1), | |
ea52c577 | 3489 | (reverse_condition_maybe_unordered |
3490 | (GET_CODE (XEXP (tmp, 1))))); | |
c533da59 | 3491 | } |
3492 | } | |
3493 | } | |
3494 | } | |
3495 | ||
3496 | pass = !pass; | |
3497 | ||
3498 | } | |
87ad11b0 | 3499 | \f |
ea52c577 | 3500 | /* You may have trouble believing this, but this is the 32 bit HP-PA |
3501 | stack layout. Wow. | |
87ad11b0 | 3502 | |
3503 | Offset Contents | |
3504 | ||
3505 | Variable arguments (optional; any number may be allocated) | |
3506 | ||
3507 | SP-(4*(N+9)) arg word N | |
3508 | : : | |
3509 | SP-56 arg word 5 | |
3510 | SP-52 arg word 4 | |
3511 | ||
3512 | Fixed arguments (must be allocated; may remain unused) | |
3513 | ||
3514 | SP-48 arg word 3 | |
3515 | SP-44 arg word 2 | |
3516 | SP-40 arg word 1 | |
3517 | SP-36 arg word 0 | |
3518 | ||
3519 | Frame Marker | |
3520 | ||
3521 | SP-32 External Data Pointer (DP) | |
3522 | SP-28 External sr4 | |
3523 | SP-24 External/stub RP (RP') | |
3524 | SP-20 Current RP | |
3525 | SP-16 Static Link | |
3526 | SP-12 Clean up | |
3527 | SP-8 Calling Stub RP (RP'') | |
3528 | SP-4 Previous SP | |
3529 | ||
3530 | Top of Frame | |
3531 | ||
3532 | SP-0 Stack Pointer (points to next available address) | |
3533 | ||
3534 | */ | |
3535 | ||
3536 | /* This function saves registers as follows. Registers marked with ' are | |
3537 | this function's registers (as opposed to the previous function's). | |
3538 | If a frame_pointer isn't needed, r4 is saved as a general register; | |
3539 | the space for the frame pointer is still allocated, though, to keep | |
3540 | things simple. | |
3541 | ||
3542 | ||
3543 | Top of Frame | |
3544 | ||
3545 | SP (FP') Previous FP | |
3546 | SP + 4 Alignment filler (sigh) | |
3547 | SP + 8 Space for locals reserved here. | |
3548 | . | |
3549 | . | |
3550 | . | |
3551 | SP + n All call saved register used. | |
3552 | . | |
3553 | . | |
3554 | . | |
3555 | SP + o All call saved fp registers used. | |
3556 | . | |
3557 | . | |
3558 | . | |
3559 | SP + p (SP') points to next available address. | |
6d36483b | 3560 | |
87ad11b0 | 3561 | */ |
3562 | ||
17d9b0c3 | 3563 | /* Global variables set by output_function_prologue(). */ |
cc858176 | 3564 | /* Size of frame. Need to know this to emit return insns from |
3565 | leaf procedures. */ | |
6bcdc1fb | 3566 | static HOST_WIDE_INT actual_fsize, local_fsize; |
3567 | static int save_fregs; | |
cc858176 | 3568 | |
daee63dd | 3569 | /* Emit RTL to store REG at the memory location specified by BASE+DISP. |
359a0be8 | 3570 | Handle case where DISP > 8k by using the add_high_const patterns. |
daee63dd | 3571 | |
3572 | Note in DISP > 8k case, we will leave the high part of the address | |
3573 | in %r1. There is code in expand_hppa_{prologue,epilogue} that knows this.*/ | |
7014838c | 3574 | |
6a2c16d6 | 3575 | static void |
6bcdc1fb | 3576 | store_reg (int reg, HOST_WIDE_INT disp, int base) |
87ad11b0 | 3577 | { |
89dcddd6 | 3578 | rtx dest, src, basereg; |
3579 | rtx_insn *insn; | |
cc858176 | 3580 | |
3581 | src = gen_rtx_REG (word_mode, reg); | |
3582 | basereg = gen_rtx_REG (Pmode, base); | |
87ad11b0 | 3583 | if (VAL_14_BITS_P (disp)) |
daee63dd | 3584 | { |
29c05e22 | 3585 | dest = gen_rtx_MEM (word_mode, plus_constant (Pmode, basereg, disp)); |
6a2c16d6 | 3586 | insn = emit_move_insn (dest, src); |
daee63dd | 3587 | } |
6bcdc1fb | 3588 | else if (TARGET_64BIT && !VAL_32_BITS_P (disp)) |
3589 | { | |
3590 | rtx delta = GEN_INT (disp); | |
3591 | rtx tmpreg = gen_rtx_REG (Pmode, 1); | |
3592 | ||
3593 | emit_move_insn (tmpreg, delta); | |
5ecfd087 | 3594 | insn = emit_move_insn (tmpreg, gen_rtx_PLUS (Pmode, tmpreg, basereg)); |
6bcdc1fb | 3595 | if (DO_FRAME_NOTES) |
3596 | { | |
b9c74b4d | 3597 | add_reg_note (insn, REG_FRAME_RELATED_EXPR, |
d1f9b275 | 3598 | gen_rtx_SET (tmpreg, |
b9c74b4d | 3599 | gen_rtx_PLUS (Pmode, basereg, delta))); |
5ecfd087 | 3600 | RTX_FRAME_RELATED_P (insn) = 1; |
6bcdc1fb | 3601 | } |
5ecfd087 | 3602 | dest = gen_rtx_MEM (word_mode, tmpreg); |
3603 | insn = emit_move_insn (dest, src); | |
6bcdc1fb | 3604 | } |
daee63dd | 3605 | else |
3606 | { | |
cc858176 | 3607 | rtx delta = GEN_INT (disp); |
3608 | rtx high = gen_rtx_PLUS (Pmode, basereg, gen_rtx_HIGH (Pmode, delta)); | |
3609 | rtx tmpreg = gen_rtx_REG (Pmode, 1); | |
6bcdc1fb | 3610 | |
cc858176 | 3611 | emit_move_insn (tmpreg, high); |
3612 | dest = gen_rtx_MEM (word_mode, gen_rtx_LO_SUM (Pmode, tmpreg, delta)); | |
6a2c16d6 | 3613 | insn = emit_move_insn (dest, src); |
3614 | if (DO_FRAME_NOTES) | |
b9c74b4d | 3615 | add_reg_note (insn, REG_FRAME_RELATED_EXPR, |
d1f9b275 | 3616 | gen_rtx_SET (gen_rtx_MEM (word_mode, |
b9c74b4d | 3617 | gen_rtx_PLUS (word_mode, |
3618 | basereg, | |
3619 | delta)), | |
3620 | src)); | |
daee63dd | 3621 | } |
6a2c16d6 | 3622 | |
3623 | if (DO_FRAME_NOTES) | |
3624 | RTX_FRAME_RELATED_P (insn) = 1; | |
daee63dd | 3625 | } |
3626 | ||
a584fe8a | 3627 | /* Emit RTL to store REG at the memory location specified by BASE and then |
3628 | add MOD to BASE. MOD must be <= 8k. */ | |
daee63dd | 3629 | |
a584fe8a | 3630 | static void |
6bcdc1fb | 3631 | store_reg_modify (int base, int reg, HOST_WIDE_INT mod) |
a584fe8a | 3632 | { |
89dcddd6 | 3633 | rtx basereg, srcreg, delta; |
3634 | rtx_insn *insn; | |
a584fe8a | 3635 | |
ecf2283d | 3636 | gcc_assert (VAL_14_BITS_P (mod)); |
a584fe8a | 3637 | |
3638 | basereg = gen_rtx_REG (Pmode, base); | |
3639 | srcreg = gen_rtx_REG (word_mode, reg); | |
3640 | delta = GEN_INT (mod); | |
3641 | ||
3642 | insn = emit_insn (gen_post_store (basereg, srcreg, delta)); | |
3643 | if (DO_FRAME_NOTES) | |
3644 | { | |
3645 | RTX_FRAME_RELATED_P (insn) = 1; | |
3646 | ||
3647 | /* RTX_FRAME_RELATED_P must be set on each frame related set | |
dc873350 | 3648 | in a parallel with more than one element. */ |
3649 | RTX_FRAME_RELATED_P (XVECEXP (PATTERN (insn), 0, 0)) = 1; | |
3650 | RTX_FRAME_RELATED_P (XVECEXP (PATTERN (insn), 0, 1)) = 1; | |
a584fe8a | 3651 | } |
3652 | } | |
3653 | ||
3654 | /* Emit RTL to set REG to the value specified by BASE+DISP. Handle case | |
3655 | where DISP > 8k by using the add_high_const patterns. NOTE indicates | |
3656 | whether to add a frame note or not. | |
3657 | ||
3658 | In the DISP > 8k case, we leave the high part of the address in %r1. | |
3659 | There is code in expand_hppa_{prologue,epilogue} that knows about this. */ | |
7014838c | 3660 | |
6a2c16d6 | 3661 | static void |
6bcdc1fb | 3662 | set_reg_plus_d (int reg, int base, HOST_WIDE_INT disp, int note) |
87ad11b0 | 3663 | { |
89dcddd6 | 3664 | rtx_insn *insn; |
cc858176 | 3665 | |
87ad11b0 | 3666 | if (VAL_14_BITS_P (disp)) |
cc858176 | 3667 | { |
6a2c16d6 | 3668 | insn = emit_move_insn (gen_rtx_REG (Pmode, reg), |
29c05e22 | 3669 | plus_constant (Pmode, |
3670 | gen_rtx_REG (Pmode, base), disp)); | |
cc858176 | 3671 | } |
6bcdc1fb | 3672 | else if (TARGET_64BIT && !VAL_32_BITS_P (disp)) |
3673 | { | |
3674 | rtx basereg = gen_rtx_REG (Pmode, base); | |
3675 | rtx delta = GEN_INT (disp); | |
3676 | rtx tmpreg = gen_rtx_REG (Pmode, 1); | |
3677 | ||
3678 | emit_move_insn (tmpreg, delta); | |
3679 | insn = emit_move_insn (gen_rtx_REG (Pmode, reg), | |
3680 | gen_rtx_PLUS (Pmode, tmpreg, basereg)); | |
5ecfd087 | 3681 | if (DO_FRAME_NOTES) |
b9c74b4d | 3682 | add_reg_note (insn, REG_FRAME_RELATED_EXPR, |
d1f9b275 | 3683 | gen_rtx_SET (tmpreg, |
b9c74b4d | 3684 | gen_rtx_PLUS (Pmode, basereg, delta))); |
6bcdc1fb | 3685 | } |
87ad11b0 | 3686 | else |
daee63dd | 3687 | { |
6a2c16d6 | 3688 | rtx basereg = gen_rtx_REG (Pmode, base); |
cc858176 | 3689 | rtx delta = GEN_INT (disp); |
6bcdc1fb | 3690 | rtx tmpreg = gen_rtx_REG (Pmode, 1); |
6a2c16d6 | 3691 | |
6bcdc1fb | 3692 | emit_move_insn (tmpreg, |
6a2c16d6 | 3693 | gen_rtx_PLUS (Pmode, basereg, |
cc858176 | 3694 | gen_rtx_HIGH (Pmode, delta))); |
6a2c16d6 | 3695 | insn = emit_move_insn (gen_rtx_REG (Pmode, reg), |
6bcdc1fb | 3696 | gen_rtx_LO_SUM (Pmode, tmpreg, delta)); |
daee63dd | 3697 | } |
6a2c16d6 | 3698 | |
a584fe8a | 3699 | if (DO_FRAME_NOTES && note) |
6a2c16d6 | 3700 | RTX_FRAME_RELATED_P (insn) = 1; |
87ad11b0 | 3701 | } |
3702 | ||
6bcdc1fb | 3703 | HOST_WIDE_INT |
e202682d | 3704 | pa_compute_frame_size (HOST_WIDE_INT size, int *fregs_live) |
87ad11b0 | 3705 | { |
256f9b65 | 3706 | int freg_saved = 0; |
3707 | int i, j; | |
3708 | ||
e202682d | 3709 | /* The code in pa_expand_prologue and pa_expand_epilogue must |
256f9b65 | 3710 | be consistent with the rounding and size calculation done here. |
3711 | Change them at the same time. */ | |
3712 | ||
3713 | /* We do our own stack alignment. First, round the size of the | |
3714 | stack locals up to a word boundary. */ | |
3715 | size = (size + UNITS_PER_WORD - 1) & ~(UNITS_PER_WORD - 1); | |
3716 | ||
3717 | /* Space for previous frame pointer + filler. If any frame is | |
3718 | allocated, we need to add in the STARTING_FRAME_OFFSET. We | |
3719 | waste some space here for the sake of HP compatibility. The | |
3720 | first slot is only used when the frame pointer is needed. */ | |
3721 | if (size || frame_pointer_needed) | |
3722 | size += STARTING_FRAME_OFFSET; | |
3723 | ||
a584fe8a | 3724 | /* If the current function calls __builtin_eh_return, then we need |
3725 | to allocate stack space for registers that will hold data for | |
3726 | the exception handler. */ | |
18d50ae6 | 3727 | if (DO_FRAME_NOTES && crtl->calls_eh_return) |
a584fe8a | 3728 | { |
3729 | unsigned int i; | |
3730 | ||
3731 | for (i = 0; EH_RETURN_DATA_REGNO (i) != INVALID_REGNUM; ++i) | |
3732 | continue; | |
256f9b65 | 3733 | size += i * UNITS_PER_WORD; |
a584fe8a | 3734 | } |
3735 | ||
3a51bad9 | 3736 | /* Account for space used by the callee general register saves. */ |
256f9b65 | 3737 | for (i = 18, j = frame_pointer_needed ? 4 : 3; i >= j; i--) |
3072d30e | 3738 | if (df_regs_ever_live_p (i)) |
256f9b65 | 3739 | size += UNITS_PER_WORD; |
df0651dc | 3740 | |
3a51bad9 | 3741 | /* Account for space used by the callee floating point register saves. */ |
bac38c40 | 3742 | for (i = FP_SAVED_REG_LAST; i >= FP_SAVED_REG_FIRST; i -= FP_REG_STEP) |
3072d30e | 3743 | if (df_regs_ever_live_p (i) |
3744 | || (!TARGET_64BIT && df_regs_ever_live_p (i + 1))) | |
df0651dc | 3745 | { |
256f9b65 | 3746 | freg_saved = 1; |
002fc5f7 | 3747 | |
3a51bad9 | 3748 | /* We always save both halves of the FP register, so always |
3749 | increment the frame size by 8 bytes. */ | |
256f9b65 | 3750 | size += 8; |
df0651dc | 3751 | } |
3752 | ||
256f9b65 | 3753 | /* If any of the floating registers are saved, account for the |
3754 | alignment needed for the floating point register save block. */ | |
3755 | if (freg_saved) | |
3756 | { | |
3757 | size = (size + 7) & ~7; | |
3758 | if (fregs_live) | |
3759 | *fregs_live = 1; | |
3760 | } | |
3761 | ||
3a51bad9 | 3762 | /* The various ABIs include space for the outgoing parameters in the |
256f9b65 | 3763 | size of the current function's stack frame. We don't need to align |
3764 | for the outgoing arguments as their alignment is set by the final | |
3765 | rounding for the frame as a whole. */ | |
abe32cce | 3766 | size += crtl->outgoing_args_size; |
3a51bad9 | 3767 | |
3768 | /* Allocate space for the fixed frame marker. This space must be | |
e9ec370e | 3769 | allocated for any function that makes calls or allocates |
3a51bad9 | 3770 | stack space. */ |
d5bf7b64 | 3771 | if (!crtl->is_leaf || size) |
e9ec370e | 3772 | size += TARGET_64BIT ? 48 : 32; |
5e3c5739 | 3773 | |
256f9b65 | 3774 | /* Finally, round to the preferred stack boundary. */ |
2247cc5f | 3775 | return ((size + PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT - 1) |
3776 | & ~(PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT - 1)); | |
87ad11b0 | 3777 | } |
6d36483b | 3778 | |
17d9b0c3 | 3779 | /* Generate the assembly code for function entry. FILE is a stdio |
3780 | stream to output the code to. SIZE is an int: how many units of | |
3781 | temporary storage to allocate. | |
3782 | ||
3783 | Refer to the array `regs_ever_live' to determine which registers to | |
3784 | save; `regs_ever_live[I]' is nonzero if register number I is ever | |
3785 | used in the function. This function is responsible for knowing | |
3786 | which registers should not be saved even if used. */ | |
3787 | ||
3788 | /* On HP-PA, move-double insns between fpu and cpu need an 8-byte block | |
3789 | of memory. If any fpu reg is used in the function, we allocate | |
3790 | such a block here, at the bottom of the frame, just in case it's needed. | |
3791 | ||
3792 | If this function is a leaf procedure, then we may choose not | |
3793 | to do a "save" insn. The decision about whether or not | |
3794 | to do this is made in regclass.c. */ | |
3795 | ||
6988553d | 3796 | static void |
5c1d8983 | 3797 | pa_output_function_prologue (FILE *file, HOST_WIDE_INT size ATTRIBUTE_UNUSED) |
87ad11b0 | 3798 | { |
d151162a | 3799 | /* The function's label and associated .PROC must never be |
3800 | separated and must be output *after* any profiling declarations | |
3801 | to avoid changing spaces/subspaces within a procedure. */ | |
3802 | ASM_OUTPUT_LABEL (file, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); | |
3803 | fputs ("\t.PROC\n", file); | |
3804 | ||
e202682d | 3805 | /* pa_expand_prologue does the dirty work now. We just need |
daee63dd | 3806 | to output the assembler directives which denote the start |
3807 | of a function. */ | |
6bcdc1fb | 3808 | fprintf (file, "\t.CALLINFO FRAME=" HOST_WIDE_INT_PRINT_DEC, actual_fsize); |
d5bf7b64 | 3809 | if (crtl->is_leaf) |
9c0ac0fd | 3810 | fputs (",NO_CALLS", file); |
df6b92e4 | 3811 | else |
3812 | fputs (",CALLS", file); | |
3813 | if (rp_saved) | |
3814 | fputs (",SAVE_RP", file); | |
f3ba7709 | 3815 | |
e9ec370e | 3816 | /* The SAVE_SP flag is used to indicate that register %r3 is stored |
3817 | at the beginning of the frame and that it is used as the frame | |
3818 | pointer for the frame. We do this because our current frame | |
3ce7ff97 | 3819 | layout doesn't conform to that specified in the HP runtime |
e9ec370e | 3820 | documentation and we need a way to indicate to programs such as |
3821 | GDB where %r3 is saved. The SAVE_SP flag was chosen because it | |
3822 | isn't used by HP compilers but is supported by the assembler. | |
3823 | However, SAVE_SP is supposed to indicate that the previous stack | |
3824 | pointer has been saved in the frame marker. */ | |
f3ba7709 | 3825 | if (frame_pointer_needed) |
9c0ac0fd | 3826 | fputs (",SAVE_SP", file); |
f3ba7709 | 3827 | |
a9960cdc | 3828 | /* Pass on information about the number of callee register saves |
9b0c95be | 3829 | performed in the prologue. |
3830 | ||
3831 | The compiler is supposed to pass the highest register number | |
6d36483b | 3832 | saved, the assembler then has to adjust that number before |
9b0c95be | 3833 | entering it into the unwind descriptor (to account for any |
6d36483b | 3834 | caller saved registers with lower register numbers than the |
9b0c95be | 3835 | first callee saved register). */ |
3836 | if (gr_saved) | |
3837 | fprintf (file, ",ENTRY_GR=%d", gr_saved + 2); | |
3838 | ||
3839 | if (fr_saved) | |
3840 | fprintf (file, ",ENTRY_FR=%d", fr_saved + 11); | |
a9960cdc | 3841 | |
9c0ac0fd | 3842 | fputs ("\n\t.ENTRY\n", file); |
daee63dd | 3843 | |
2efea8c0 | 3844 | remove_useless_addtr_insns (0); |
daee63dd | 3845 | } |
3846 | ||
57ed30e5 | 3847 | void |
e202682d | 3848 | pa_expand_prologue (void) |
daee63dd | 3849 | { |
afd7b680 | 3850 | int merge_sp_adjust_with_store = 0; |
6bcdc1fb | 3851 | HOST_WIDE_INT size = get_frame_size (); |
3852 | HOST_WIDE_INT offset; | |
3853 | int i; | |
89dcddd6 | 3854 | rtx tmpreg; |
3855 | rtx_insn *insn; | |
daee63dd | 3856 | |
a9960cdc | 3857 | gr_saved = 0; |
3858 | fr_saved = 0; | |
3ddcbb9d | 3859 | save_fregs = 0; |
3a51bad9 | 3860 | |
256f9b65 | 3861 | /* Compute total size for frame pointer, filler, locals and rounding to |
e202682d | 3862 | the next word boundary. Similar code appears in pa_compute_frame_size |
256f9b65 | 3863 | and must be changed in tandem with this code. */ |
3864 | local_fsize = (size + UNITS_PER_WORD - 1) & ~(UNITS_PER_WORD - 1); | |
3865 | if (local_fsize || frame_pointer_needed) | |
3866 | local_fsize += STARTING_FRAME_OFFSET; | |
3a51bad9 | 3867 | |
e202682d | 3868 | actual_fsize = pa_compute_frame_size (size, &save_fregs); |
8c0dd614 | 3869 | if (flag_stack_usage_info) |
990495a7 | 3870 | current_function_static_stack_size = actual_fsize; |
87ad11b0 | 3871 | |
daee63dd | 3872 | /* Compute a few things we will use often. */ |
440c23df | 3873 | tmpreg = gen_rtx_REG (word_mode, 1); |
87ad11b0 | 3874 | |
6d36483b | 3875 | /* Save RP first. The calling conventions manual states RP will |
cc858176 | 3876 | always be stored into the caller's frame at sp - 20 or sp - 16 |
5e3c5739 | 3877 | depending on which ABI is in use. */ |
18d50ae6 | 3878 | if (df_regs_ever_live_p (2) || crtl->calls_eh_return) |
df6b92e4 | 3879 | { |
3880 | store_reg (2, TARGET_64BIT ? -16 : -20, STACK_POINTER_REGNUM); | |
3881 | rp_saved = true; | |
3882 | } | |
3883 | else | |
3884 | rp_saved = false; | |
6d36483b | 3885 | |
daee63dd | 3886 | /* Allocate the local frame and set up the frame pointer if needed. */ |
58361f39 | 3887 | if (actual_fsize != 0) |
3888 | { | |
3889 | if (frame_pointer_needed) | |
3890 | { | |
3891 | /* Copy the old frame pointer temporarily into %r1. Set up the | |
3892 | new stack pointer, then store away the saved old frame pointer | |
a584fe8a | 3893 | into the stack at sp and at the same time update the stack |
3894 | pointer by actual_fsize bytes. Two versions, first | |
58361f39 | 3895 | handles small (<8k) frames. The second handles large (>=8k) |
3896 | frames. */ | |
68bc9ae6 | 3897 | insn = emit_move_insn (tmpreg, hard_frame_pointer_rtx); |
a584fe8a | 3898 | if (DO_FRAME_NOTES) |
dc873350 | 3899 | RTX_FRAME_RELATED_P (insn) = 1; |
a584fe8a | 3900 | |
68bc9ae6 | 3901 | insn = emit_move_insn (hard_frame_pointer_rtx, stack_pointer_rtx); |
a584fe8a | 3902 | if (DO_FRAME_NOTES) |
3903 | RTX_FRAME_RELATED_P (insn) = 1; | |
3904 | ||
3905 | if (VAL_14_BITS_P (actual_fsize)) | |
3906 | store_reg_modify (STACK_POINTER_REGNUM, 1, actual_fsize); | |
58361f39 | 3907 | else |
3908 | { | |
3909 | /* It is incorrect to store the saved frame pointer at *sp, | |
3910 | then increment sp (writes beyond the current stack boundary). | |
3911 | ||
3912 | So instead use stwm to store at *sp and post-increment the | |
3913 | stack pointer as an atomic operation. Then increment sp to | |
3914 | finish allocating the new frame. */ | |
6bcdc1fb | 3915 | HOST_WIDE_INT adjust1 = 8192 - 64; |
3916 | HOST_WIDE_INT adjust2 = actual_fsize - adjust1; | |
cc858176 | 3917 | |
a584fe8a | 3918 | store_reg_modify (STACK_POINTER_REGNUM, 1, adjust1); |
6a2c16d6 | 3919 | set_reg_plus_d (STACK_POINTER_REGNUM, STACK_POINTER_REGNUM, |
a584fe8a | 3920 | adjust2, 1); |
58361f39 | 3921 | } |
a584fe8a | 3922 | |
e9ec370e | 3923 | /* We set SAVE_SP in frames that need a frame pointer. Thus, |
3924 | we need to store the previous stack pointer (frame pointer) | |
3925 | into the frame marker on targets that use the HP unwind | |
3926 | library. This allows the HP unwind library to be used to | |
3927 | unwind GCC frames. However, we are not fully compatible | |
3928 | with the HP library because our frame layout differs from | |
3929 | that specified in the HP runtime specification. | |
3930 | ||
3931 | We don't want a frame note on this instruction as the frame | |
3932 | marker moves during dynamic stack allocation. | |
3933 | ||
3934 | This instruction also serves as a blockage to prevent | |
3935 | register spills from being scheduled before the stack | |
3936 | pointer is raised. This is necessary as we store | |
3937 | registers using the frame pointer as a base register, | |
3938 | and the frame pointer is set before sp is raised. */ | |
3939 | if (TARGET_HPUX_UNWIND_LIBRARY) | |
3940 | { | |
3941 | rtx addr = gen_rtx_PLUS (word_mode, stack_pointer_rtx, | |
3942 | GEN_INT (TARGET_64BIT ? -8 : -4)); | |
3943 | ||
3944 | emit_move_insn (gen_rtx_MEM (word_mode, addr), | |
68bc9ae6 | 3945 | hard_frame_pointer_rtx); |
e9ec370e | 3946 | } |
3947 | else | |
3948 | emit_insn (gen_blockage ()); | |
58361f39 | 3949 | } |
3950 | /* no frame pointer needed. */ | |
3951 | else | |
3952 | { | |
3953 | /* In some cases we can perform the first callee register save | |
3954 | and allocating the stack frame at the same time. If so, just | |
3955 | make a note of it and defer allocating the frame until saving | |
3956 | the callee registers. */ | |
df6edefa | 3957 | if (VAL_14_BITS_P (actual_fsize) && local_fsize == 0) |
58361f39 | 3958 | merge_sp_adjust_with_store = 1; |
3959 | /* Can not optimize. Adjust the stack frame by actual_fsize | |
3960 | bytes. */ | |
3961 | else | |
6a2c16d6 | 3962 | set_reg_plus_d (STACK_POINTER_REGNUM, STACK_POINTER_REGNUM, |
a584fe8a | 3963 | actual_fsize, 1); |
58361f39 | 3964 | } |
372ef038 | 3965 | } |
3966 | ||
6d36483b | 3967 | /* Normal register save. |
daee63dd | 3968 | |
3969 | Do not save the frame pointer in the frame_pointer_needed case. It | |
3970 | was done earlier. */ | |
87ad11b0 | 3971 | if (frame_pointer_needed) |
3972 | { | |
a584fe8a | 3973 | offset = local_fsize; |
3974 | ||
3975 | /* Saving the EH return data registers in the frame is the simplest | |
3976 | way to get the frame unwind information emitted. We put them | |
3977 | just before the general registers. */ | |
18d50ae6 | 3978 | if (DO_FRAME_NOTES && crtl->calls_eh_return) |
a584fe8a | 3979 | { |
3980 | unsigned int i, regno; | |
3981 | ||
3982 | for (i = 0; ; ++i) | |
3983 | { | |
3984 | regno = EH_RETURN_DATA_REGNO (i); | |
3985 | if (regno == INVALID_REGNUM) | |
3986 | break; | |
3987 | ||
68bc9ae6 | 3988 | store_reg (regno, offset, HARD_FRAME_POINTER_REGNUM); |
a584fe8a | 3989 | offset += UNITS_PER_WORD; |
3990 | } | |
3991 | } | |
3992 | ||
3993 | for (i = 18; i >= 4; i--) | |
3072d30e | 3994 | if (df_regs_ever_live_p (i) && ! call_used_regs[i]) |
87ad11b0 | 3995 | { |
68bc9ae6 | 3996 | store_reg (i, offset, HARD_FRAME_POINTER_REGNUM); |
6ec4380b | 3997 | offset += UNITS_PER_WORD; |
a9960cdc | 3998 | gr_saved++; |
87ad11b0 | 3999 | } |
7f7c4869 | 4000 | /* Account for %r3 which is saved in a special place. */ |
9b0c95be | 4001 | gr_saved++; |
87ad11b0 | 4002 | } |
daee63dd | 4003 | /* No frame pointer needed. */ |
87ad11b0 | 4004 | else |
4005 | { | |
a584fe8a | 4006 | offset = local_fsize - actual_fsize; |
4007 | ||
4008 | /* Saving the EH return data registers in the frame is the simplest | |
4009 | way to get the frame unwind information emitted. */ | |
18d50ae6 | 4010 | if (DO_FRAME_NOTES && crtl->calls_eh_return) |
a584fe8a | 4011 | { |
4012 | unsigned int i, regno; | |
4013 | ||
4014 | for (i = 0; ; ++i) | |
4015 | { | |
4016 | regno = EH_RETURN_DATA_REGNO (i); | |
4017 | if (regno == INVALID_REGNUM) | |
4018 | break; | |
4019 | ||
4020 | /* If merge_sp_adjust_with_store is nonzero, then we can | |
4021 | optimize the first save. */ | |
4022 | if (merge_sp_adjust_with_store) | |
4023 | { | |
4024 | store_reg_modify (STACK_POINTER_REGNUM, regno, -offset); | |
4025 | merge_sp_adjust_with_store = 0; | |
4026 | } | |
4027 | else | |
4028 | store_reg (regno, offset, STACK_POINTER_REGNUM); | |
4029 | offset += UNITS_PER_WORD; | |
4030 | } | |
4031 | } | |
4032 | ||
4033 | for (i = 18; i >= 3; i--) | |
3072d30e | 4034 | if (df_regs_ever_live_p (i) && ! call_used_regs[i]) |
87ad11b0 | 4035 | { |
6d36483b | 4036 | /* If merge_sp_adjust_with_store is nonzero, then we can |
afd7b680 | 4037 | optimize the first GR save. */ |
201f01e9 | 4038 | if (merge_sp_adjust_with_store) |
afd7b680 | 4039 | { |
a584fe8a | 4040 | store_reg_modify (STACK_POINTER_REGNUM, i, -offset); |
afd7b680 | 4041 | merge_sp_adjust_with_store = 0; |
afd7b680 | 4042 | } |
4043 | else | |
6a2c16d6 | 4044 | store_reg (i, offset, STACK_POINTER_REGNUM); |
6ec4380b | 4045 | offset += UNITS_PER_WORD; |
a9960cdc | 4046 | gr_saved++; |
87ad11b0 | 4047 | } |
daee63dd | 4048 | |
afd7b680 | 4049 | /* If we wanted to merge the SP adjustment with a GR save, but we never |
daee63dd | 4050 | did any GR saves, then just emit the adjustment here. */ |
201f01e9 | 4051 | if (merge_sp_adjust_with_store) |
6a2c16d6 | 4052 | set_reg_plus_d (STACK_POINTER_REGNUM, STACK_POINTER_REGNUM, |
a584fe8a | 4053 | actual_fsize, 1); |
87ad11b0 | 4054 | } |
6d36483b | 4055 | |
df6edefa | 4056 | /* The hppa calling conventions say that %r19, the pic offset |
4057 | register, is saved at sp - 32 (in this function's frame) | |
4058 | when generating PIC code. FIXME: What is the correct thing | |
4059 | to do for functions which make no calls and allocate no | |
4060 | frame? Do we need to allocate a frame, or can we just omit | |
8f177faf | 4061 | the save? For now we'll just omit the save. |
4062 | ||
4063 | We don't want a note on this insn as the frame marker can | |
4064 | move if there is a dynamic stack allocation. */ | |
df6edefa | 4065 | if (flag_pic && actual_fsize != 0 && !TARGET_64BIT) |
8f177faf | 4066 | { |
4067 | rtx addr = gen_rtx_PLUS (word_mode, stack_pointer_rtx, GEN_INT (-32)); | |
4068 | ||
4069 | emit_move_insn (gen_rtx_MEM (word_mode, addr), pic_offset_table_rtx); | |
4070 | ||
4071 | } | |
df6edefa | 4072 | |
87ad11b0 | 4073 | /* Align pointer properly (doubleword boundary). */ |
4074 | offset = (offset + 7) & ~7; | |
4075 | ||
4076 | /* Floating point register store. */ | |
4077 | if (save_fregs) | |
87ad11b0 | 4078 | { |
a584fe8a | 4079 | rtx base; |
4080 | ||
daee63dd | 4081 | /* First get the frame or stack pointer to the start of the FP register |
4082 | save area. */ | |
a1ab4fa3 | 4083 | if (frame_pointer_needed) |
a584fe8a | 4084 | { |
68bc9ae6 | 4085 | set_reg_plus_d (1, HARD_FRAME_POINTER_REGNUM, offset, 0); |
4086 | base = hard_frame_pointer_rtx; | |
a584fe8a | 4087 | } |
a1ab4fa3 | 4088 | else |
a584fe8a | 4089 | { |
4090 | set_reg_plus_d (1, STACK_POINTER_REGNUM, offset, 0); | |
4091 | base = stack_pointer_rtx; | |
4092 | } | |
daee63dd | 4093 | |
4094 | /* Now actually save the FP registers. */ | |
bac38c40 | 4095 | for (i = FP_SAVED_REG_LAST; i >= FP_SAVED_REG_FIRST; i -= FP_REG_STEP) |
7f7c4869 | 4096 | { |
3072d30e | 4097 | if (df_regs_ever_live_p (i) |
4098 | || (! TARGET_64BIT && df_regs_ever_live_p (i + 1))) | |
7f7c4869 | 4099 | { |
89dcddd6 | 4100 | rtx addr, reg; |
4101 | rtx_insn *insn; | |
e89dda49 | 4102 | addr = gen_rtx_MEM (DFmode, |
4103 | gen_rtx_POST_INC (word_mode, tmpreg)); | |
cc858176 | 4104 | reg = gen_rtx_REG (DFmode, i); |
6a2c16d6 | 4105 | insn = emit_move_insn (addr, reg); |
4106 | if (DO_FRAME_NOTES) | |
4107 | { | |
4108 | RTX_FRAME_RELATED_P (insn) = 1; | |
a584fe8a | 4109 | if (TARGET_64BIT) |
4110 | { | |
4111 | rtx mem = gen_rtx_MEM (DFmode, | |
29c05e22 | 4112 | plus_constant (Pmode, base, |
4113 | offset)); | |
b9c74b4d | 4114 | add_reg_note (insn, REG_FRAME_RELATED_EXPR, |
d1f9b275 | 4115 | gen_rtx_SET (mem, reg)); |
a584fe8a | 4116 | } |
4117 | else | |
4118 | { | |
4119 | rtx meml = gen_rtx_MEM (SFmode, | |
29c05e22 | 4120 | plus_constant (Pmode, base, |
4121 | offset)); | |
a584fe8a | 4122 | rtx memr = gen_rtx_MEM (SFmode, |
29c05e22 | 4123 | plus_constant (Pmode, base, |
4124 | offset + 4)); | |
a584fe8a | 4125 | rtx regl = gen_rtx_REG (SFmode, i); |
4126 | rtx regr = gen_rtx_REG (SFmode, i + 1); | |
d1f9b275 | 4127 | rtx setl = gen_rtx_SET (meml, regl); |
4128 | rtx setr = gen_rtx_SET (memr, regr); | |
a584fe8a | 4129 | rtvec vec; |
4130 | ||
4131 | RTX_FRAME_RELATED_P (setl) = 1; | |
4132 | RTX_FRAME_RELATED_P (setr) = 1; | |
4133 | vec = gen_rtvec (2, setl, setr); | |
b9c74b4d | 4134 | add_reg_note (insn, REG_FRAME_RELATED_EXPR, |
4135 | gen_rtx_SEQUENCE (VOIDmode, vec)); | |
a584fe8a | 4136 | } |
6a2c16d6 | 4137 | } |
4138 | offset += GET_MODE_SIZE (DFmode); | |
7f7c4869 | 4139 | fr_saved++; |
4140 | } | |
4141 | } | |
87ad11b0 | 4142 | } |
4143 | } | |
4144 | ||
cc858176 | 4145 | /* Emit RTL to load REG from the memory location specified by BASE+DISP. |
4146 | Handle case where DISP > 8k by using the add_high_const patterns. */ | |
4147 | ||
6a2c16d6 | 4148 | static void |
6bcdc1fb | 4149 | load_reg (int reg, HOST_WIDE_INT disp, int base) |
cc858176 | 4150 | { |
6bcdc1fb | 4151 | rtx dest = gen_rtx_REG (word_mode, reg); |
4152 | rtx basereg = gen_rtx_REG (Pmode, base); | |
4153 | rtx src; | |
cc858176 | 4154 | |
cc858176 | 4155 | if (VAL_14_BITS_P (disp)) |
29c05e22 | 4156 | src = gen_rtx_MEM (word_mode, plus_constant (Pmode, basereg, disp)); |
6bcdc1fb | 4157 | else if (TARGET_64BIT && !VAL_32_BITS_P (disp)) |
cc858176 | 4158 | { |
6bcdc1fb | 4159 | rtx delta = GEN_INT (disp); |
4160 | rtx tmpreg = gen_rtx_REG (Pmode, 1); | |
4161 | ||
4162 | emit_move_insn (tmpreg, delta); | |
4163 | if (TARGET_DISABLE_INDEXING) | |
4164 | { | |
4165 | emit_move_insn (tmpreg, gen_rtx_PLUS (Pmode, tmpreg, basereg)); | |
4166 | src = gen_rtx_MEM (word_mode, tmpreg); | |
4167 | } | |
4168 | else | |
4169 | src = gen_rtx_MEM (word_mode, gen_rtx_PLUS (Pmode, tmpreg, basereg)); | |
cc858176 | 4170 | } |
4171 | else | |
4172 | { | |
4173 | rtx delta = GEN_INT (disp); | |
4174 | rtx high = gen_rtx_PLUS (Pmode, basereg, gen_rtx_HIGH (Pmode, delta)); | |
4175 | rtx tmpreg = gen_rtx_REG (Pmode, 1); | |
6bcdc1fb | 4176 | |
cc858176 | 4177 | emit_move_insn (tmpreg, high); |
4178 | src = gen_rtx_MEM (word_mode, gen_rtx_LO_SUM (Pmode, tmpreg, delta)); | |
cc858176 | 4179 | } |
6bcdc1fb | 4180 | |
4181 | emit_move_insn (dest, src); | |
cc858176 | 4182 | } |
daee63dd | 4183 | |
2247cc5f | 4184 | /* Update the total code bytes output to the text section. */ |
4185 | ||
4186 | static void | |
21a47bc9 | 4187 | update_total_code_bytes (unsigned int nbytes) |
2247cc5f | 4188 | { |
4189 | if ((TARGET_PORTABLE_RUNTIME || !TARGET_GAS || !TARGET_SOM) | |
8a05c3c2 | 4190 | && !IN_NAMED_SECTION_P (cfun->decl)) |
2247cc5f | 4191 | { |
21a47bc9 | 4192 | unsigned int old_total = total_code_bytes; |
2247cc5f | 4193 | |
21a47bc9 | 4194 | total_code_bytes += nbytes; |
2247cc5f | 4195 | |
21a47bc9 | 4196 | /* Be prepared to handle overflows. */ |
4197 | if (old_total > total_code_bytes) | |
4198 | total_code_bytes = UINT_MAX; | |
2247cc5f | 4199 | } |
4200 | } | |
4201 | ||
17d9b0c3 | 4202 | /* This function generates the assembly code for function exit. |
4203 | Args are as for output_function_prologue (). | |
4204 | ||
4205 | The function epilogue should not depend on the current stack | |
4206 | pointer! It should use the frame pointer only. This is mandatory | |
4207 | because of alloca; we also take advantage of it to omit stack | |
6dc3b0d9 | 4208 | adjustments before returning. */ |
17d9b0c3 | 4209 | |
4210 | static void | |
5c1d8983 | 4211 | pa_output_function_epilogue (FILE *file, HOST_WIDE_INT size ATTRIBUTE_UNUSED) |
87ad11b0 | 4212 | { |
d3ffa7b4 | 4213 | rtx_insn *insn = get_last_insn (); |
4805aa90 | 4214 | bool extra_nop; |
2247cc5f | 4215 | |
e202682d | 4216 | /* pa_expand_epilogue does the dirty work now. We just need |
daee63dd | 4217 | to output the assembler directives which denote the end |
3695c664 | 4218 | of a function. |
4219 | ||
4220 | To make debuggers happy, emit a nop if the epilogue was completely | |
4221 | eliminated due to a volatile call as the last insn in the | |
6d36483b | 4222 | current function. That way the return address (in %r2) will |
3695c664 | 4223 | always point to a valid instruction in the current function. */ |
4224 | ||
4225 | /* Get the last real insn. */ | |
aa90bb35 | 4226 | if (NOTE_P (insn)) |
3695c664 | 4227 | insn = prev_real_insn (insn); |
4228 | ||
4229 | /* If it is a sequence, then look inside. */ | |
aa90bb35 | 4230 | if (insn && NONJUMP_INSN_P (insn) && GET_CODE (PATTERN (insn)) == SEQUENCE) |
d3ffa7b4 | 4231 | insn = as_a <rtx_sequence *> (PATTERN (insn))-> insn (0); |
3695c664 | 4232 | |
6d36483b | 4233 | /* If insn is a CALL_INSN, then it must be a call to a volatile |
3695c664 | 4234 | function (otherwise there would be epilogue insns). */ |
aa90bb35 | 4235 | if (insn && CALL_P (insn)) |
90c41894 | 4236 | { |
4237 | fputs ("\tnop\n", file); | |
4805aa90 | 4238 | extra_nop = true; |
90c41894 | 4239 | } |
4805aa90 | 4240 | else |
4241 | extra_nop = false; | |
6d36483b | 4242 | |
9c0ac0fd | 4243 | fputs ("\t.EXIT\n\t.PROCEND\n", file); |
90c41894 | 4244 | |
916c9cef | 4245 | if (TARGET_SOM && TARGET_GAS) |
4246 | { | |
be85a9c4 | 4247 | /* We are done with this subspace except possibly for some additional |
916c9cef | 4248 | debug information. Forget that we are in this subspace to ensure |
4249 | that the next function is output in its own subspace. */ | |
2f14b1f9 | 4250 | in_section = NULL; |
78962d38 | 4251 | cfun->machine->in_nsubspa = 2; |
916c9cef | 4252 | } |
4253 | ||
4805aa90 | 4254 | /* Thunks do their own insn accounting. */ |
be85a9c4 | 4255 | if (cfun->is_thunk) |
4256 | return; | |
4257 | ||
2247cc5f | 4258 | if (INSN_ADDRESSES_SET_P ()) |
90c41894 | 4259 | { |
4805aa90 | 4260 | last_address = extra_nop ? 4 : 0; |
2247cc5f | 4261 | insn = get_last_nonnote_insn (); |
93801ad9 | 4262 | if (insn) |
4263 | { | |
4264 | last_address += INSN_ADDRESSES (INSN_UID (insn)); | |
4265 | if (INSN_P (insn)) | |
4266 | last_address += insn_default_length (insn); | |
4267 | } | |
2247cc5f | 4268 | last_address = ((last_address + FUNCTION_BOUNDARY / BITS_PER_UNIT - 1) |
4269 | & ~(FUNCTION_BOUNDARY / BITS_PER_UNIT - 1)); | |
90c41894 | 4270 | } |
21a47bc9 | 4271 | else |
4272 | last_address = UINT_MAX; | |
2247cc5f | 4273 | |
4274 | /* Finally, update the total number of code bytes output so far. */ | |
4275 | update_total_code_bytes (last_address); | |
daee63dd | 4276 | } |
afd7b680 | 4277 | |
daee63dd | 4278 | void |
e202682d | 4279 | pa_expand_epilogue (void) |
daee63dd | 4280 | { |
6d36483b | 4281 | rtx tmpreg; |
6bcdc1fb | 4282 | HOST_WIDE_INT offset; |
4283 | HOST_WIDE_INT ret_off = 0; | |
4284 | int i; | |
58361f39 | 4285 | int merge_sp_adjust_with_load = 0; |
daee63dd | 4286 | |
4287 | /* We will use this often. */ | |
440c23df | 4288 | tmpreg = gen_rtx_REG (word_mode, 1); |
daee63dd | 4289 | |
4290 | /* Try to restore RP early to avoid load/use interlocks when | |
4291 | RP gets used in the return (bv) instruction. This appears to still | |
6dc3b0d9 | 4292 | be necessary even when we schedule the prologue and epilogue. */ |
df6b92e4 | 4293 | if (rp_saved) |
58361f39 | 4294 | { |
4295 | ret_off = TARGET_64BIT ? -16 : -20; | |
4296 | if (frame_pointer_needed) | |
4297 | { | |
68bc9ae6 | 4298 | load_reg (2, ret_off, HARD_FRAME_POINTER_REGNUM); |
58361f39 | 4299 | ret_off = 0; |
4300 | } | |
4301 | else | |
4302 | { | |
4303 | /* No frame pointer, and stack is smaller than 8k. */ | |
4304 | if (VAL_14_BITS_P (ret_off - actual_fsize)) | |
4305 | { | |
6a2c16d6 | 4306 | load_reg (2, ret_off - actual_fsize, STACK_POINTER_REGNUM); |
58361f39 | 4307 | ret_off = 0; |
4308 | } | |
4309 | } | |
4310 | } | |
daee63dd | 4311 | |
4312 | /* General register restores. */ | |
87ad11b0 | 4313 | if (frame_pointer_needed) |
4314 | { | |
a584fe8a | 4315 | offset = local_fsize; |
4316 | ||
4317 | /* If the current function calls __builtin_eh_return, then we need | |
4318 | to restore the saved EH data registers. */ | |
18d50ae6 | 4319 | if (DO_FRAME_NOTES && crtl->calls_eh_return) |
a584fe8a | 4320 | { |
4321 | unsigned int i, regno; | |
4322 | ||
4323 | for (i = 0; ; ++i) | |
4324 | { | |
4325 | regno = EH_RETURN_DATA_REGNO (i); | |
4326 | if (regno == INVALID_REGNUM) | |
4327 | break; | |
4328 | ||
68bc9ae6 | 4329 | load_reg (regno, offset, HARD_FRAME_POINTER_REGNUM); |
a584fe8a | 4330 | offset += UNITS_PER_WORD; |
4331 | } | |
4332 | } | |
4333 | ||
4334 | for (i = 18; i >= 4; i--) | |
3072d30e | 4335 | if (df_regs_ever_live_p (i) && ! call_used_regs[i]) |
87ad11b0 | 4336 | { |
68bc9ae6 | 4337 | load_reg (i, offset, HARD_FRAME_POINTER_REGNUM); |
6ec4380b | 4338 | offset += UNITS_PER_WORD; |
87ad11b0 | 4339 | } |
87ad11b0 | 4340 | } |
4341 | else | |
4342 | { | |
a584fe8a | 4343 | offset = local_fsize - actual_fsize; |
4344 | ||
4345 | /* If the current function calls __builtin_eh_return, then we need | |
4346 | to restore the saved EH data registers. */ | |
18d50ae6 | 4347 | if (DO_FRAME_NOTES && crtl->calls_eh_return) |
a584fe8a | 4348 | { |
4349 | unsigned int i, regno; | |
4350 | ||
4351 | for (i = 0; ; ++i) | |
4352 | { | |
4353 | regno = EH_RETURN_DATA_REGNO (i); | |
4354 | if (regno == INVALID_REGNUM) | |
4355 | break; | |
4356 | ||
4357 | /* Only for the first load. | |
4358 | merge_sp_adjust_with_load holds the register load | |
4359 | with which we will merge the sp adjustment. */ | |
4360 | if (merge_sp_adjust_with_load == 0 | |
4361 | && local_fsize == 0 | |
4362 | && VAL_14_BITS_P (-actual_fsize)) | |
4363 | merge_sp_adjust_with_load = regno; | |
4364 | else | |
4365 | load_reg (regno, offset, STACK_POINTER_REGNUM); | |
4366 | offset += UNITS_PER_WORD; | |
4367 | } | |
4368 | } | |
4369 | ||
4370 | for (i = 18; i >= 3; i--) | |
7f7c4869 | 4371 | { |
3072d30e | 4372 | if (df_regs_ever_live_p (i) && ! call_used_regs[i]) |
7f7c4869 | 4373 | { |
7f7c4869 | 4374 | /* Only for the first load. |
4375 | merge_sp_adjust_with_load holds the register load | |
4376 | with which we will merge the sp adjustment. */ | |
58361f39 | 4377 | if (merge_sp_adjust_with_load == 0 |
7f7c4869 | 4378 | && local_fsize == 0 |
58361f39 | 4379 | && VAL_14_BITS_P (-actual_fsize)) |
7f7c4869 | 4380 | merge_sp_adjust_with_load = i; |
4381 | else | |
6a2c16d6 | 4382 | load_reg (i, offset, STACK_POINTER_REGNUM); |
6ec4380b | 4383 | offset += UNITS_PER_WORD; |
7f7c4869 | 4384 | } |
4385 | } | |
87ad11b0 | 4386 | } |
daee63dd | 4387 | |
87ad11b0 | 4388 | /* Align pointer properly (doubleword boundary). */ |
4389 | offset = (offset + 7) & ~7; | |
4390 | ||
daee63dd | 4391 | /* FP register restores. */ |
87ad11b0 | 4392 | if (save_fregs) |
87ad11b0 | 4393 | { |
daee63dd | 4394 | /* Adjust the register to index off of. */ |
a1ab4fa3 | 4395 | if (frame_pointer_needed) |
68bc9ae6 | 4396 | set_reg_plus_d (1, HARD_FRAME_POINTER_REGNUM, offset, 0); |
a1ab4fa3 | 4397 | else |
a584fe8a | 4398 | set_reg_plus_d (1, STACK_POINTER_REGNUM, offset, 0); |
daee63dd | 4399 | |
4400 | /* Actually do the restores now. */ | |
bac38c40 | 4401 | for (i = FP_SAVED_REG_LAST; i >= FP_SAVED_REG_FIRST; i -= FP_REG_STEP) |
3072d30e | 4402 | if (df_regs_ever_live_p (i) |
4403 | || (! TARGET_64BIT && df_regs_ever_live_p (i + 1))) | |
cc858176 | 4404 | { |
e89dda49 | 4405 | rtx src = gen_rtx_MEM (DFmode, |
4406 | gen_rtx_POST_INC (word_mode, tmpreg)); | |
cc858176 | 4407 | rtx dest = gen_rtx_REG (DFmode, i); |
6a2c16d6 | 4408 | emit_move_insn (dest, src); |
cc858176 | 4409 | } |
87ad11b0 | 4410 | } |
daee63dd | 4411 | |
14660146 | 4412 | /* Emit a blockage insn here to keep these insns from being moved to |
4413 | an earlier spot in the epilogue, or into the main instruction stream. | |
4414 | ||
4415 | This is necessary as we must not cut the stack back before all the | |
4416 | restores are finished. */ | |
4417 | emit_insn (gen_blockage ()); | |
daee63dd | 4418 | |
9840d99d | 4419 | /* Reset stack pointer (and possibly frame pointer). The stack |
42819d4e | 4420 | pointer is initially set to fp + 64 to avoid a race condition. */ |
58361f39 | 4421 | if (frame_pointer_needed) |
87ad11b0 | 4422 | { |
cc858176 | 4423 | rtx delta = GEN_INT (-64); |
a584fe8a | 4424 | |
68bc9ae6 | 4425 | set_reg_plus_d (STACK_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM, 64, 0); |
4426 | emit_insn (gen_pre_load (hard_frame_pointer_rtx, | |
4427 | stack_pointer_rtx, delta)); | |
87ad11b0 | 4428 | } |
daee63dd | 4429 | /* If we were deferring a callee register restore, do it now. */ |
58361f39 | 4430 | else if (merge_sp_adjust_with_load) |
4431 | { | |
4432 | rtx delta = GEN_INT (-actual_fsize); | |
cc858176 | 4433 | rtx dest = gen_rtx_REG (word_mode, merge_sp_adjust_with_load); |
a584fe8a | 4434 | |
4435 | emit_insn (gen_pre_load (dest, stack_pointer_rtx, delta)); | |
58361f39 | 4436 | } |
daee63dd | 4437 | else if (actual_fsize != 0) |
a584fe8a | 4438 | set_reg_plus_d (STACK_POINTER_REGNUM, STACK_POINTER_REGNUM, |
4439 | - actual_fsize, 0); | |
58361f39 | 4440 | |
4441 | /* If we haven't restored %r2 yet (no frame pointer, and a stack | |
4442 | frame greater than 8k), do so now. */ | |
4443 | if (ret_off != 0) | |
6a2c16d6 | 4444 | load_reg (2, ret_off, STACK_POINTER_REGNUM); |
a584fe8a | 4445 | |
18d50ae6 | 4446 | if (DO_FRAME_NOTES && crtl->calls_eh_return) |
a584fe8a | 4447 | { |
4448 | rtx sa = EH_RETURN_STACKADJ_RTX; | |
4449 | ||
4450 | emit_insn (gen_blockage ()); | |
4451 | emit_insn (TARGET_64BIT | |
4452 | ? gen_subdi3 (stack_pointer_rtx, stack_pointer_rtx, sa) | |
4453 | : gen_subsi3 (stack_pointer_rtx, stack_pointer_rtx, sa)); | |
4454 | } | |
fed903e9 | 4455 | } |
4456 | ||
4457 | bool | |
4458 | pa_can_use_return_insn (void) | |
4459 | { | |
4460 | if (!reload_completed) | |
4461 | return false; | |
4462 | ||
4463 | if (frame_pointer_needed) | |
4464 | return false; | |
4465 | ||
4466 | if (df_regs_ever_live_p (2)) | |
4467 | return false; | |
4468 | ||
4469 | if (crtl->profile) | |
4470 | return false; | |
4471 | ||
e202682d | 4472 | return pa_compute_frame_size (get_frame_size (), 0) == 0; |
87ad11b0 | 4473 | } |
4474 | ||
d7e2f694 | 4475 | rtx |
5c1d8983 | 4476 | hppa_pic_save_rtx (void) |
cf3de5bb | 4477 | { |
d7e2f694 | 4478 | return get_hard_reg_initial_val (word_mode, PIC_OFFSET_TABLE_REGNUM); |
df6edefa | 4479 | } |
4480 | ||
bb1bc2ca | 4481 | #ifndef NO_DEFERRED_PROFILE_COUNTERS |
4482 | #define NO_DEFERRED_PROFILE_COUNTERS 0 | |
4483 | #endif | |
4484 | ||
bb1bc2ca | 4485 | |
4486 | /* Vector of funcdef numbers. */ | |
f1f41a6c | 4487 | static vec<int> funcdef_nos; |
bb1bc2ca | 4488 | |
4489 | /* Output deferred profile counters. */ | |
4490 | static void | |
4491 | output_deferred_profile_counters (void) | |
4492 | { | |
4493 | unsigned int i; | |
4494 | int align, n; | |
4495 | ||
f1f41a6c | 4496 | if (funcdef_nos.is_empty ()) |
bb1bc2ca | 4497 | return; |
4498 | ||
2f14b1f9 | 4499 | switch_to_section (data_section); |
bb1bc2ca | 4500 | align = MIN (BIGGEST_ALIGNMENT, LONG_TYPE_SIZE); |
4501 | ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (align / BITS_PER_UNIT)); | |
4502 | ||
f1f41a6c | 4503 | for (i = 0; funcdef_nos.iterate (i, &n); i++) |
bb1bc2ca | 4504 | { |
4505 | targetm.asm_out.internal_label (asm_out_file, "LP", n); | |
4506 | assemble_integer (const0_rtx, LONG_TYPE_SIZE / BITS_PER_UNIT, align, 1); | |
4507 | } | |
4508 | ||
f1f41a6c | 4509 | funcdef_nos.release (); |
bb1bc2ca | 4510 | } |
4511 | ||
df6edefa | 4512 | void |
5c1d8983 | 4513 | hppa_profile_hook (int label_no) |
df6edefa | 4514 | { |
4da37e2f | 4515 | /* We use SImode for the address of the function in both 32 and |
4516 | 64-bit code to avoid having to provide DImode versions of the | |
4517 | lcla2 and load_offset_label_address insn patterns. */ | |
4518 | rtx reg = gen_reg_rtx (SImode); | |
79f6a8ed | 4519 | rtx_code_label *label_rtx = gen_label_rtx (); |
89dcddd6 | 4520 | rtx begin_label_rtx; |
4521 | rtx_insn *call_insn; | |
a9ac13e4 | 4522 | char begin_label_name[16]; |
df6edefa | 4523 | |
a9ac13e4 | 4524 | ASM_GENERATE_INTERNAL_LABEL (begin_label_name, FUNC_BEGIN_PROLOG_LABEL, |
b8a21949 | 4525 | label_no); |
4da37e2f | 4526 | begin_label_rtx = gen_rtx_SYMBOL_REF (SImode, ggc_strdup (begin_label_name)); |
df6edefa | 4527 | |
4528 | if (TARGET_64BIT) | |
4529 | emit_move_insn (arg_pointer_rtx, | |
4530 | gen_rtx_PLUS (word_mode, virtual_outgoing_args_rtx, | |
4531 | GEN_INT (64))); | |
4532 | ||
df6edefa | 4533 | emit_move_insn (gen_rtx_REG (word_mode, 26), gen_rtx_REG (word_mode, 2)); |
4534 | ||
80777cd8 | 4535 | /* The address of the function is loaded into %r25 with an instruction- |
4da37e2f | 4536 | relative sequence that avoids the use of relocations. The sequence |
4537 | is split so that the load_offset_label_address instruction can | |
4538 | occupy the delay slot of the call to _mcount. */ | |
4539 | if (TARGET_PA_20) | |
4540 | emit_insn (gen_lcla2 (reg, label_rtx)); | |
4541 | else | |
4542 | emit_insn (gen_lcla1 (reg, label_rtx)); | |
4543 | ||
4544 | emit_insn (gen_load_offset_label_address (gen_rtx_REG (SImode, 25), | |
4545 | reg, begin_label_rtx, label_rtx)); | |
4546 | ||
bb1bc2ca | 4547 | #if !NO_DEFERRED_PROFILE_COUNTERS |
df6edefa | 4548 | { |
4549 | rtx count_label_rtx, addr, r24; | |
a9ac13e4 | 4550 | char count_label_name[16]; |
df6edefa | 4551 | |
f1f41a6c | 4552 | funcdef_nos.safe_push (label_no); |
a9ac13e4 | 4553 | ASM_GENERATE_INTERNAL_LABEL (count_label_name, "LP", label_no); |
4554 | count_label_rtx = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (count_label_name)); | |
df6edefa | 4555 | |
831a12d9 | 4556 | addr = force_reg (Pmode, count_label_rtx); |
df6edefa | 4557 | r24 = gen_rtx_REG (Pmode, 24); |
4558 | emit_move_insn (r24, addr); | |
4559 | ||
df6edefa | 4560 | call_insn = |
4da37e2f | 4561 | emit_call_insn (gen_call (gen_rtx_MEM (Pmode, |
4562 | gen_rtx_SYMBOL_REF (Pmode, | |
4563 | "_mcount")), | |
4564 | GEN_INT (TARGET_64BIT ? 24 : 12))); | |
df6edefa | 4565 | |
4566 | use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), r24); | |
4567 | } | |
4568 | #else | |
4da37e2f | 4569 | |
df6edefa | 4570 | call_insn = |
4da37e2f | 4571 | emit_call_insn (gen_call (gen_rtx_MEM (Pmode, |
4572 | gen_rtx_SYMBOL_REF (Pmode, | |
4573 | "_mcount")), | |
4574 | GEN_INT (TARGET_64BIT ? 16 : 8))); | |
4575 | ||
df6edefa | 4576 | #endif |
4577 | ||
4da37e2f | 4578 | use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), gen_rtx_REG (SImode, 25)); |
4579 | use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), gen_rtx_REG (SImode, 26)); | |
4580 | ||
df6edefa | 4581 | /* Indicate the _mcount call cannot throw, nor will it execute a |
4582 | non-local goto. */ | |
450040e5 | 4583 | make_reg_eh_region_note_nothrow_nononlocal (call_insn); |
cf3de5bb | 4584 | } |
4585 | ||
e07ff380 | 4586 | /* Fetch the return address for the frame COUNT steps up from |
4587 | the current frame, after the prologue. FRAMEADDR is the | |
4588 | frame pointer of the COUNT frame. | |
4589 | ||
f49b2e77 | 4590 | We want to ignore any export stub remnants here. To handle this, |
4591 | we examine the code at the return address, and if it is an export | |
4592 | stub, we return a memory rtx for the stub return address stored | |
4593 | at frame-24. | |
a6c6fd6c | 4594 | |
4595 | The value returned is used in two different ways: | |
4596 | ||
4597 | 1. To find a function's caller. | |
4598 | ||
4599 | 2. To change the return address for a function. | |
4600 | ||
4601 | This function handles most instances of case 1; however, it will | |
4602 | fail if there are two levels of stubs to execute on the return | |
4603 | path. The only way I believe that can happen is if the return value | |
4604 | needs a parameter relocation, which never happens for C code. | |
4605 | ||
4606 | This function handles most instances of case 2; however, it will | |
4607 | fail if we did not originally have stub code on the return path | |
f49b2e77 | 4608 | but will need stub code on the new return path. This can happen if |
a6c6fd6c | 4609 | the caller & callee are both in the main program, but the new |
f49b2e77 | 4610 | return location is in a shared library. */ |
e07ff380 | 4611 | |
4612 | rtx | |
e202682d | 4613 | pa_return_addr_rtx (int count, rtx frameaddr) |
e07ff380 | 4614 | { |
4615 | rtx label; | |
f49b2e77 | 4616 | rtx rp; |
e07ff380 | 4617 | rtx saved_rp; |
4618 | rtx ins; | |
4619 | ||
16309fef | 4620 | /* The instruction stream at the return address of a PA1.X export stub is: |
74f4459c | 4621 | |
4622 | 0x4bc23fd1 | stub+8: ldw -18(sr0,sp),rp | |
4623 | 0x004010a1 | stub+12: ldsid (sr0,rp),r1 | |
4624 | 0x00011820 | stub+16: mtsp r1,sr0 | |
4625 | 0xe0400002 | stub+20: be,n 0(sr0,rp) | |
4626 | ||
4627 | 0xe0400002 must be specified as -532676606 so that it won't be | |
16309fef | 4628 | rejected as an invalid immediate operand on 64-bit hosts. |
74f4459c | 4629 | |
16309fef | 4630 | The instruction stream at the return address of a PA2.0 export stub is: |
4631 | ||
4632 | 0x4bc23fd1 | stub+8: ldw -18(sr0,sp),rp | |
4633 | 0xe840d002 | stub+12: bve,n (rp) | |
4634 | */ | |
4635 | ||
4636 | HOST_WIDE_INT insns[4]; | |
4637 | int i, len; | |
74f4459c | 4638 | |
f49b2e77 | 4639 | if (count != 0) |
4640 | return NULL_RTX; | |
b29897dd | 4641 | |
f49b2e77 | 4642 | rp = get_hard_reg_initial_val (Pmode, 2); |
e07ff380 | 4643 | |
f49b2e77 | 4644 | if (TARGET_64BIT || TARGET_NO_SPACE_REGS) |
4645 | return rp; | |
e07ff380 | 4646 | |
74f4459c | 4647 | /* If there is no export stub then just use the value saved from |
4648 | the return pointer register. */ | |
4649 | ||
b29897dd | 4650 | saved_rp = gen_reg_rtx (Pmode); |
f49b2e77 | 4651 | emit_move_insn (saved_rp, rp); |
e07ff380 | 4652 | |
4653 | /* Get pointer to the instruction stream. We have to mask out the | |
4654 | privilege level from the two low order bits of the return address | |
4655 | pointer here so that ins will point to the start of the first | |
4656 | instruction that would have been executed if we returned. */ | |
f49b2e77 | 4657 | ins = copy_to_reg (gen_rtx_AND (Pmode, rp, MASK_RETURN_ADDR)); |
e07ff380 | 4658 | label = gen_label_rtx (); |
4659 | ||
16309fef | 4660 | if (TARGET_PA_20) |
4661 | { | |
4662 | insns[0] = 0x4bc23fd1; | |
4663 | insns[1] = -398405630; | |
4664 | len = 2; | |
4665 | } | |
4666 | else | |
4667 | { | |
4668 | insns[0] = 0x4bc23fd1; | |
4669 | insns[1] = 0x004010a1; | |
4670 | insns[2] = 0x00011820; | |
4671 | insns[3] = -532676606; | |
4672 | len = 4; | |
4673 | } | |
4674 | ||
e07ff380 | 4675 | /* Check the instruction stream at the normal return address for the |
74f4459c | 4676 | export stub. If it is an export stub, than our return address is |
4677 | really in -24[frameaddr]. */ | |
e07ff380 | 4678 | |
16309fef | 4679 | for (i = 0; i < len; i++) |
74f4459c | 4680 | { |
29c05e22 | 4681 | rtx op0 = gen_rtx_MEM (SImode, plus_constant (Pmode, ins, i * 4)); |
74f4459c | 4682 | rtx op1 = GEN_INT (insns[i]); |
4683 | emit_cmp_and_jump_insns (op0, op1, NE, NULL, SImode, 0, label); | |
4684 | } | |
e07ff380 | 4685 | |
f49b2e77 | 4686 | /* Here we know that our return address points to an export |
e07ff380 | 4687 | stub. We don't want to return the address of the export stub, |
f49b2e77 | 4688 | but rather the return address of the export stub. That return |
4689 | address is stored at -24[frameaddr]. */ | |
e07ff380 | 4690 | |
f49b2e77 | 4691 | emit_move_insn (saved_rp, |
4692 | gen_rtx_MEM (Pmode, | |
4693 | memory_address (Pmode, | |
29c05e22 | 4694 | plus_constant (Pmode, frameaddr, |
f49b2e77 | 4695 | -24)))); |
e07ff380 | 4696 | |
4697 | emit_label (label); | |
74f4459c | 4698 | |
f49b2e77 | 4699 | return saved_rp; |
e07ff380 | 4700 | } |
4701 | ||
87ad11b0 | 4702 | void |
e202682d | 4703 | pa_emit_bcond_fp (rtx operands[]) |
87ad11b0 | 4704 | { |
74f4459c | 4705 | enum rtx_code code = GET_CODE (operands[0]); |
4706 | rtx operand0 = operands[1]; | |
4707 | rtx operand1 = operands[2]; | |
4708 | rtx label = operands[3]; | |
4709 | ||
d1f9b275 | 4710 | emit_insn (gen_rtx_SET (gen_rtx_REG (CCFPmode, 0), |
74f4459c | 4711 | gen_rtx_fmt_ee (code, CCFPmode, operand0, operand1))); |
4712 | ||
d1f9b275 | 4713 | emit_jump_insn (gen_rtx_SET (pc_rtx, |
ad851752 | 4714 | gen_rtx_IF_THEN_ELSE (VOIDmode, |
74f4459c | 4715 | gen_rtx_fmt_ee (NE, |
ad851752 | 4716 | VOIDmode, |
4717 | gen_rtx_REG (CCFPmode, 0), | |
4718 | const0_rtx), | |
74f4459c | 4719 | gen_rtx_LABEL_REF (VOIDmode, label), |
ad851752 | 4720 | pc_rtx))); |
87ad11b0 | 4721 | |
4722 | } | |
4723 | ||
8b49b3c7 | 4724 | /* Adjust the cost of a scheduling dependency. Return the new cost of |
4725 | a dependency LINK or INSN on DEP_INSN. COST is the current cost. */ | |
4726 | ||
747af5e7 | 4727 | static int |
18282db0 | 4728 | pa_adjust_cost (rtx_insn *insn, rtx link, rtx_insn *dep_insn, int cost) |
8b49b3c7 | 4729 | { |
43048d2c | 4730 | enum attr_type attr_type; |
4731 | ||
cde3e16c | 4732 | /* Don't adjust costs for a pa8000 chip, also do not adjust any |
4733 | true dependencies as they are described with bypasses now. */ | |
4734 | if (pa_cpu >= PROCESSOR_8000 || REG_NOTE_KIND (link) == 0) | |
342aabd9 | 4735 | return cost; |
4736 | ||
d402da4b | 4737 | if (! recog_memoized (insn)) |
4738 | return 0; | |
8b49b3c7 | 4739 | |
43048d2c | 4740 | attr_type = get_attr_type (insn); |
4741 | ||
ecf2283d | 4742 | switch (REG_NOTE_KIND (link)) |
8b49b3c7 | 4743 | { |
ecf2283d | 4744 | case REG_DEP_ANTI: |
8b49b3c7 | 4745 | /* Anti dependency; DEP_INSN reads a register that INSN writes some |
4746 | cycles later. */ | |
4747 | ||
43048d2c | 4748 | if (attr_type == TYPE_FPLOAD) |
8b49b3c7 | 4749 | { |
d402da4b | 4750 | rtx pat = PATTERN (insn); |
4751 | rtx dep_pat = PATTERN (dep_insn); | |
4752 | if (GET_CODE (pat) == PARALLEL) | |
4753 | { | |
4754 | /* This happens for the fldXs,mb patterns. */ | |
4755 | pat = XVECEXP (pat, 0, 0); | |
4756 | } | |
4757 | if (GET_CODE (pat) != SET || GET_CODE (dep_pat) != SET) | |
8b49b3c7 | 4758 | /* If this happens, we have to extend this to schedule |
d402da4b | 4759 | optimally. Return 0 for now. */ |
4760 | return 0; | |
8b49b3c7 | 4761 | |
d402da4b | 4762 | if (reg_mentioned_p (SET_DEST (pat), SET_SRC (dep_pat))) |
8b49b3c7 | 4763 | { |
d402da4b | 4764 | if (! recog_memoized (dep_insn)) |
4765 | return 0; | |
8b49b3c7 | 4766 | switch (get_attr_type (dep_insn)) |
4767 | { | |
4768 | case TYPE_FPALU: | |
134b4858 | 4769 | case TYPE_FPMULSGL: |
4770 | case TYPE_FPMULDBL: | |
8b49b3c7 | 4771 | case TYPE_FPDIVSGL: |
4772 | case TYPE_FPDIVDBL: | |
4773 | case TYPE_FPSQRTSGL: | |
4774 | case TYPE_FPSQRTDBL: | |
d402da4b | 4775 | /* A fpload can't be issued until one cycle before a |
01cc3b75 | 4776 | preceding arithmetic operation has finished if |
d402da4b | 4777 | the target of the fpload is any of the sources |
4778 | (or destination) of the arithmetic operation. */ | |
cde3e16c | 4779 | return insn_default_latency (dep_insn) - 1; |
134b4858 | 4780 | |
4781 | default: | |
4782 | return 0; | |
4783 | } | |
4784 | } | |
4785 | } | |
43048d2c | 4786 | else if (attr_type == TYPE_FPALU) |
134b4858 | 4787 | { |
4788 | rtx pat = PATTERN (insn); | |
4789 | rtx dep_pat = PATTERN (dep_insn); | |
4790 | if (GET_CODE (pat) == PARALLEL) | |
4791 | { | |
4792 | /* This happens for the fldXs,mb patterns. */ | |
4793 | pat = XVECEXP (pat, 0, 0); | |
4794 | } | |
4795 | if (GET_CODE (pat) != SET || GET_CODE (dep_pat) != SET) | |
4796 | /* If this happens, we have to extend this to schedule | |
4797 | optimally. Return 0 for now. */ | |
4798 | return 0; | |
4799 | ||
4800 | if (reg_mentioned_p (SET_DEST (pat), SET_SRC (dep_pat))) | |
4801 | { | |
4802 | if (! recog_memoized (dep_insn)) | |
4803 | return 0; | |
4804 | switch (get_attr_type (dep_insn)) | |
4805 | { | |
4806 | case TYPE_FPDIVSGL: | |
4807 | case TYPE_FPDIVDBL: | |
4808 | case TYPE_FPSQRTSGL: | |
4809 | case TYPE_FPSQRTDBL: | |
4810 | /* An ALU flop can't be issued until two cycles before a | |
01cc3b75 | 4811 | preceding divide or sqrt operation has finished if |
134b4858 | 4812 | the target of the ALU flop is any of the sources |
4813 | (or destination) of the divide or sqrt operation. */ | |
cde3e16c | 4814 | return insn_default_latency (dep_insn) - 2; |
8b49b3c7 | 4815 | |
4816 | default: | |
4817 | return 0; | |
4818 | } | |
4819 | } | |
4820 | } | |
4821 | ||
4822 | /* For other anti dependencies, the cost is 0. */ | |
4823 | return 0; | |
ecf2283d | 4824 | |
4825 | case REG_DEP_OUTPUT: | |
134b4858 | 4826 | /* Output dependency; DEP_INSN writes a register that INSN writes some |
4827 | cycles later. */ | |
43048d2c | 4828 | if (attr_type == TYPE_FPLOAD) |
134b4858 | 4829 | { |
4830 | rtx pat = PATTERN (insn); | |
4831 | rtx dep_pat = PATTERN (dep_insn); | |
4832 | if (GET_CODE (pat) == PARALLEL) | |
4833 | { | |
4834 | /* This happens for the fldXs,mb patterns. */ | |
4835 | pat = XVECEXP (pat, 0, 0); | |
4836 | } | |
4837 | if (GET_CODE (pat) != SET || GET_CODE (dep_pat) != SET) | |
4838 | /* If this happens, we have to extend this to schedule | |
4839 | optimally. Return 0 for now. */ | |
4840 | return 0; | |
4841 | ||
4842 | if (reg_mentioned_p (SET_DEST (pat), SET_DEST (dep_pat))) | |
4843 | { | |
4844 | if (! recog_memoized (dep_insn)) | |
4845 | return 0; | |
4846 | switch (get_attr_type (dep_insn)) | |
4847 | { | |
4848 | case TYPE_FPALU: | |
4849 | case TYPE_FPMULSGL: | |
4850 | case TYPE_FPMULDBL: | |
4851 | case TYPE_FPDIVSGL: | |
4852 | case TYPE_FPDIVDBL: | |
4853 | case TYPE_FPSQRTSGL: | |
4854 | case TYPE_FPSQRTDBL: | |
4855 | /* A fpload can't be issued until one cycle before a | |
01cc3b75 | 4856 | preceding arithmetic operation has finished if |
134b4858 | 4857 | the target of the fpload is the destination of the |
bea4bad2 | 4858 | arithmetic operation. |
4859 | ||
4860 | Exception: For PA7100LC, PA7200 and PA7300, the cost | |
4861 | is 3 cycles, unless they bundle together. We also | |
4862 | pay the penalty if the second insn is a fpload. */ | |
cde3e16c | 4863 | return insn_default_latency (dep_insn) - 1; |
8b49b3c7 | 4864 | |
134b4858 | 4865 | default: |
4866 | return 0; | |
4867 | } | |
4868 | } | |
4869 | } | |
43048d2c | 4870 | else if (attr_type == TYPE_FPALU) |
134b4858 | 4871 | { |
4872 | rtx pat = PATTERN (insn); | |
4873 | rtx dep_pat = PATTERN (dep_insn); | |
4874 | if (GET_CODE (pat) == PARALLEL) | |
4875 | { | |
4876 | /* This happens for the fldXs,mb patterns. */ | |
4877 | pat = XVECEXP (pat, 0, 0); | |
4878 | } | |
4879 | if (GET_CODE (pat) != SET || GET_CODE (dep_pat) != SET) | |
4880 | /* If this happens, we have to extend this to schedule | |
4881 | optimally. Return 0 for now. */ | |
4882 | return 0; | |
4883 | ||
4884 | if (reg_mentioned_p (SET_DEST (pat), SET_DEST (dep_pat))) | |
4885 | { | |
4886 | if (! recog_memoized (dep_insn)) | |
4887 | return 0; | |
4888 | switch (get_attr_type (dep_insn)) | |
4889 | { | |
4890 | case TYPE_FPDIVSGL: | |
4891 | case TYPE_FPDIVDBL: | |
4892 | case TYPE_FPSQRTSGL: | |
4893 | case TYPE_FPSQRTDBL: | |
4894 | /* An ALU flop can't be issued until two cycles before a | |
01cc3b75 | 4895 | preceding divide or sqrt operation has finished if |
134b4858 | 4896 | the target of the ALU flop is also the target of |
3398e91d | 4897 | the divide or sqrt operation. */ |
cde3e16c | 4898 | return insn_default_latency (dep_insn) - 2; |
134b4858 | 4899 | |
4900 | default: | |
4901 | return 0; | |
4902 | } | |
4903 | } | |
4904 | } | |
4905 | ||
4906 | /* For other output dependencies, the cost is 0. */ | |
4907 | return 0; | |
ecf2283d | 4908 | |
4909 | default: | |
4910 | gcc_unreachable (); | |
134b4858 | 4911 | } |
8b49b3c7 | 4912 | } |
87ad11b0 | 4913 | |
747af5e7 | 4914 | /* Adjust scheduling priorities. We use this to try and keep addil |
4915 | and the next use of %r1 close together. */ | |
4916 | static int | |
18282db0 | 4917 | pa_adjust_priority (rtx_insn *insn, int priority) |
747af5e7 | 4918 | { |
4919 | rtx set = single_set (insn); | |
4920 | rtx src, dest; | |
4921 | if (set) | |
4922 | { | |
4923 | src = SET_SRC (set); | |
4924 | dest = SET_DEST (set); | |
4925 | if (GET_CODE (src) == LO_SUM | |
4926 | && symbolic_operand (XEXP (src, 1), VOIDmode) | |
4927 | && ! read_only_operand (XEXP (src, 1), VOIDmode)) | |
4928 | priority >>= 3; | |
4929 | ||
4930 | else if (GET_CODE (src) == MEM | |
4931 | && GET_CODE (XEXP (src, 0)) == LO_SUM | |
4932 | && symbolic_operand (XEXP (XEXP (src, 0), 1), VOIDmode) | |
4933 | && ! read_only_operand (XEXP (XEXP (src, 0), 1), VOIDmode)) | |
4934 | priority >>= 1; | |
4935 | ||
4936 | else if (GET_CODE (dest) == MEM | |
4937 | && GET_CODE (XEXP (dest, 0)) == LO_SUM | |
4938 | && symbolic_operand (XEXP (XEXP (dest, 0), 1), VOIDmode) | |
4939 | && ! read_only_operand (XEXP (XEXP (dest, 0), 1), VOIDmode)) | |
4940 | priority >>= 3; | |
4941 | } | |
4942 | return priority; | |
4943 | } | |
4944 | ||
4945 | /* The 700 can only issue a single insn at a time. | |
4946 | The 7XXX processors can issue two insns at a time. | |
4947 | The 8000 can issue 4 insns at a time. */ | |
4948 | static int | |
5c1d8983 | 4949 | pa_issue_rate (void) |
747af5e7 | 4950 | { |
4951 | switch (pa_cpu) | |
4952 | { | |
4953 | case PROCESSOR_700: return 1; | |
4954 | case PROCESSOR_7100: return 2; | |
4955 | case PROCESSOR_7100LC: return 2; | |
4956 | case PROCESSOR_7200: return 2; | |
bea4bad2 | 4957 | case PROCESSOR_7300: return 2; |
747af5e7 | 4958 | case PROCESSOR_8000: return 4; |
4959 | ||
4960 | default: | |
ecf2283d | 4961 | gcc_unreachable (); |
747af5e7 | 4962 | } |
4963 | } | |
4964 | ||
4965 | ||
4966 | ||
8c9327d2 | 4967 | /* Return any length plus adjustment needed by INSN which already has |
4968 | its length computed as LENGTH. Return LENGTH if no adjustment is | |
4969 | necessary. | |
58e17b0b | 4970 | |
4971 | Also compute the length of an inline block move here as it is too | |
5fbd5940 | 4972 | complicated to express as a length attribute in pa.md. */ |
58e17b0b | 4973 | int |
8443f305 | 4974 | pa_adjust_insn_length (rtx_insn *insn, int length) |
58e17b0b | 4975 | { |
4976 | rtx pat = PATTERN (insn); | |
4977 | ||
8c9327d2 | 4978 | /* If length is negative or undefined, provide initial length. */ |
4979 | if ((unsigned int) length >= INT_MAX) | |
4980 | { | |
4981 | if (GET_CODE (pat) == SEQUENCE) | |
8443f305 | 4982 | insn = as_a <rtx_insn *> (XVECEXP (pat, 0, 0)); |
8c9327d2 | 4983 | |
4984 | switch (get_attr_type (insn)) | |
4985 | { | |
4986 | case TYPE_MILLI: | |
4987 | length = pa_attr_length_millicode_call (insn); | |
4988 | break; | |
4989 | case TYPE_CALL: | |
4990 | length = pa_attr_length_call (insn, 0); | |
4991 | break; | |
4992 | case TYPE_SIBCALL: | |
4993 | length = pa_attr_length_call (insn, 1); | |
4994 | break; | |
4995 | case TYPE_DYNCALL: | |
4996 | length = pa_attr_length_indirect_call (insn); | |
4997 | break; | |
4998 | case TYPE_SH_FUNC_ADRS: | |
4999 | length = pa_attr_length_millicode_call (insn) + 20; | |
5000 | break; | |
5001 | default: | |
5002 | gcc_unreachable (); | |
5003 | } | |
5004 | } | |
5005 | ||
58e17b0b | 5006 | /* Block move pattern. */ |
b8f55b74 | 5007 | if (NONJUMP_INSN_P (insn) |
5008 | && GET_CODE (pat) == PARALLEL | |
5009 | && GET_CODE (XVECEXP (pat, 0, 0)) == SET | |
5010 | && GET_CODE (XEXP (XVECEXP (pat, 0, 0), 0)) == MEM | |
5011 | && GET_CODE (XEXP (XVECEXP (pat, 0, 0), 1)) == MEM | |
5012 | && GET_MODE (XEXP (XVECEXP (pat, 0, 0), 0)) == BLKmode | |
5013 | && GET_MODE (XEXP (XVECEXP (pat, 0, 0), 1)) == BLKmode) | |
8c9327d2 | 5014 | length += compute_movmem_length (insn) - 4; |
a7e1bb24 | 5015 | /* Block clear pattern. */ |
aa90bb35 | 5016 | else if (NONJUMP_INSN_P (insn) |
a7e1bb24 | 5017 | && GET_CODE (pat) == PARALLEL |
5018 | && GET_CODE (XVECEXP (pat, 0, 0)) == SET | |
5019 | && GET_CODE (XEXP (XVECEXP (pat, 0, 0), 0)) == MEM | |
5020 | && XEXP (XVECEXP (pat, 0, 0), 1) == const0_rtx | |
5021 | && GET_MODE (XEXP (XVECEXP (pat, 0, 0), 0)) == BLKmode) | |
8c9327d2 | 5022 | length += compute_clrmem_length (insn) - 4; |
58e17b0b | 5023 | /* Conditional branch with an unfilled delay slot. */ |
aa90bb35 | 5024 | else if (JUMP_P (insn) && ! simplejump_p (insn)) |
5fbd5940 | 5025 | { |
5026 | /* Adjust a short backwards conditional with an unfilled delay slot. */ | |
5027 | if (GET_CODE (pat) == SET | |
5a1231ef | 5028 | && length == 4 |
372b3fe2 | 5029 | && JUMP_LABEL (insn) != NULL_RTX |
5fbd5940 | 5030 | && ! forward_branch_p (insn)) |
8c9327d2 | 5031 | length += 4; |
546a40bd | 5032 | else if (GET_CODE (pat) == PARALLEL |
5033 | && get_attr_type (insn) == TYPE_PARALLEL_BRANCH | |
5034 | && length == 4) | |
8c9327d2 | 5035 | length += 4; |
5fbd5940 | 5036 | /* Adjust dbra insn with short backwards conditional branch with |
6d36483b | 5037 | unfilled delay slot -- only for case where counter is in a |
6dc3b0d9 | 5038 | general register register. */ |
5fbd5940 | 5039 | else if (GET_CODE (pat) == PARALLEL |
5040 | && GET_CODE (XVECEXP (pat, 0, 1)) == SET | |
5041 | && GET_CODE (XEXP (XVECEXP (pat, 0, 1), 0)) == REG | |
6d36483b | 5042 | && ! FP_REG_P (XEXP (XVECEXP (pat, 0, 1), 0)) |
5a1231ef | 5043 | && length == 4 |
5fbd5940 | 5044 | && ! forward_branch_p (insn)) |
8c9327d2 | 5045 | length += 4; |
5fbd5940 | 5046 | } |
8c9327d2 | 5047 | return length; |
58e17b0b | 5048 | } |
5049 | ||
93d3ee56 | 5050 | /* Implement the TARGET_PRINT_OPERAND_PUNCT_VALID_P hook. */ |
5051 | ||
5052 | static bool | |
5053 | pa_print_operand_punct_valid_p (unsigned char code) | |
5054 | { | |
5055 | if (code == '@' | |
5056 | || code == '#' | |
5057 | || code == '*' | |
5058 | || code == '^') | |
5059 | return true; | |
5060 | ||
5061 | return false; | |
5062 | } | |
5063 | ||
87ad11b0 | 5064 | /* Print operand X (an rtx) in assembler syntax to file FILE. |
5065 | CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified. | |
5066 | For `%' followed by punctuation, CODE is the punctuation and X is null. */ | |
5067 | ||
5068 | void | |
e202682d | 5069 | pa_print_operand (FILE *file, rtx x, int code) |
87ad11b0 | 5070 | { |
5071 | switch (code) | |
5072 | { | |
5073 | case '#': | |
5074 | /* Output a 'nop' if there's nothing for the delay slot. */ | |
5075 | if (dbr_sequence_length () == 0) | |
5076 | fputs ("\n\tnop", file); | |
5077 | return; | |
5078 | case '*': | |
87fcb603 | 5079 | /* Output a nullification completer if there's nothing for the */ |
6d36483b | 5080 | /* delay slot or nullification is requested. */ |
87ad11b0 | 5081 | if (dbr_sequence_length () == 0 || |
5082 | (final_sequence && | |
5083 | INSN_ANNULLED_BRANCH_P (XVECEXP (final_sequence, 0, 0)))) | |
5084 | fputs (",n", file); | |
5085 | return; | |
5086 | case 'R': | |
5087 | /* Print out the second register name of a register pair. | |
5088 | I.e., R (6) => 7. */ | |
ea52c577 | 5089 | fputs (reg_names[REGNO (x) + 1], file); |
87ad11b0 | 5090 | return; |
5091 | case 'r': | |
6dc3b0d9 | 5092 | /* A register or zero. */ |
891b55b4 | 5093 | if (x == const0_rtx |
5094 | || (x == CONST0_RTX (DFmode)) | |
5095 | || (x == CONST0_RTX (SFmode))) | |
87ad11b0 | 5096 | { |
c6ae275c | 5097 | fputs ("%r0", file); |
5098 | return; | |
5099 | } | |
5100 | else | |
5101 | break; | |
5102 | case 'f': | |
6dc3b0d9 | 5103 | /* A register or zero (floating point). */ |
c6ae275c | 5104 | if (x == const0_rtx |
5105 | || (x == CONST0_RTX (DFmode)) | |
5106 | || (x == CONST0_RTX (SFmode))) | |
5107 | { | |
5108 | fputs ("%fr0", file); | |
87ad11b0 | 5109 | return; |
5110 | } | |
5111 | else | |
5112 | break; | |
2d14b1f0 | 5113 | case 'A': |
5114 | { | |
5115 | rtx xoperands[2]; | |
5116 | ||
5117 | xoperands[0] = XEXP (XEXP (x, 0), 0); | |
5118 | xoperands[1] = XVECEXP (XEXP (XEXP (x, 0), 1), 0, 0); | |
e202682d | 5119 | pa_output_global_address (file, xoperands[1], 0); |
2d14b1f0 | 5120 | fprintf (file, "(%s)", reg_names [REGNO (xoperands[0])]); |
5121 | return; | |
5122 | } | |
5123 | ||
c8975385 | 5124 | case 'C': /* Plain (C)ondition */ |
87ad11b0 | 5125 | case 'X': |
5126 | switch (GET_CODE (x)) | |
6d36483b | 5127 | { |
87ad11b0 | 5128 | case EQ: |
9c0ac0fd | 5129 | fputs ("=", file); break; |
87ad11b0 | 5130 | case NE: |
9c0ac0fd | 5131 | fputs ("<>", file); break; |
87ad11b0 | 5132 | case GT: |
9c0ac0fd | 5133 | fputs (">", file); break; |
87ad11b0 | 5134 | case GE: |
9c0ac0fd | 5135 | fputs (">=", file); break; |
87ad11b0 | 5136 | case GEU: |
9c0ac0fd | 5137 | fputs (">>=", file); break; |
87ad11b0 | 5138 | case GTU: |
9c0ac0fd | 5139 | fputs (">>", file); break; |
87ad11b0 | 5140 | case LT: |
9c0ac0fd | 5141 | fputs ("<", file); break; |
87ad11b0 | 5142 | case LE: |
9c0ac0fd | 5143 | fputs ("<=", file); break; |
87ad11b0 | 5144 | case LEU: |
9c0ac0fd | 5145 | fputs ("<<=", file); break; |
87ad11b0 | 5146 | case LTU: |
9c0ac0fd | 5147 | fputs ("<<", file); break; |
87ad11b0 | 5148 | default: |
ecf2283d | 5149 | gcc_unreachable (); |
87ad11b0 | 5150 | } |
5151 | return; | |
c8975385 | 5152 | case 'N': /* Condition, (N)egated */ |
87ad11b0 | 5153 | switch (GET_CODE (x)) |
5154 | { | |
5155 | case EQ: | |
9c0ac0fd | 5156 | fputs ("<>", file); break; |
87ad11b0 | 5157 | case NE: |
9c0ac0fd | 5158 | fputs ("=", file); break; |
87ad11b0 | 5159 | case GT: |
9c0ac0fd | 5160 | fputs ("<=", file); break; |
87ad11b0 | 5161 | case GE: |
9c0ac0fd | 5162 | fputs ("<", file); break; |
87ad11b0 | 5163 | case GEU: |
9c0ac0fd | 5164 | fputs ("<<", file); break; |
87ad11b0 | 5165 | case GTU: |
9c0ac0fd | 5166 | fputs ("<<=", file); break; |
87ad11b0 | 5167 | case LT: |
9c0ac0fd | 5168 | fputs (">=", file); break; |
87ad11b0 | 5169 | case LE: |
9c0ac0fd | 5170 | fputs (">", file); break; |
87ad11b0 | 5171 | case LEU: |
9c0ac0fd | 5172 | fputs (">>", file); break; |
87ad11b0 | 5173 | case LTU: |
9c0ac0fd | 5174 | fputs (">>=", file); break; |
87ad11b0 | 5175 | default: |
ecf2283d | 5176 | gcc_unreachable (); |
87ad11b0 | 5177 | } |
5178 | return; | |
ea52c577 | 5179 | /* For floating point comparisons. Note that the output |
321c1598 | 5180 | predicates are the complement of the desired mode. The |
5181 | conditions for GT, GE, LT, LE and LTGT cause an invalid | |
5182 | operation exception if the result is unordered and this | |
5183 | exception is enabled in the floating-point status register. */ | |
61230bc9 | 5184 | case 'Y': |
5185 | switch (GET_CODE (x)) | |
5186 | { | |
5187 | case EQ: | |
9c0ac0fd | 5188 | fputs ("!=", file); break; |
61230bc9 | 5189 | case NE: |
9c0ac0fd | 5190 | fputs ("=", file); break; |
61230bc9 | 5191 | case GT: |
32509e56 | 5192 | fputs ("!>", file); break; |
61230bc9 | 5193 | case GE: |
32509e56 | 5194 | fputs ("!>=", file); break; |
61230bc9 | 5195 | case LT: |
32509e56 | 5196 | fputs ("!<", file); break; |
61230bc9 | 5197 | case LE: |
32509e56 | 5198 | fputs ("!<=", file); break; |
5199 | case LTGT: | |
5200 | fputs ("!<>", file); break; | |
5201 | case UNLE: | |
321c1598 | 5202 | fputs ("!?<=", file); break; |
32509e56 | 5203 | case UNLT: |
321c1598 | 5204 | fputs ("!?<", file); break; |
32509e56 | 5205 | case UNGE: |
321c1598 | 5206 | fputs ("!?>=", file); break; |
32509e56 | 5207 | case UNGT: |
321c1598 | 5208 | fputs ("!?>", file); break; |
32509e56 | 5209 | case UNEQ: |
321c1598 | 5210 | fputs ("!?=", file); break; |
32509e56 | 5211 | case UNORDERED: |
321c1598 | 5212 | fputs ("!?", file); break; |
32509e56 | 5213 | case ORDERED: |
321c1598 | 5214 | fputs ("?", file); break; |
61230bc9 | 5215 | default: |
ecf2283d | 5216 | gcc_unreachable (); |
61230bc9 | 5217 | } |
5218 | return; | |
c8975385 | 5219 | case 'S': /* Condition, operands are (S)wapped. */ |
5220 | switch (GET_CODE (x)) | |
5221 | { | |
5222 | case EQ: | |
9c0ac0fd | 5223 | fputs ("=", file); break; |
c8975385 | 5224 | case NE: |
9c0ac0fd | 5225 | fputs ("<>", file); break; |
c8975385 | 5226 | case GT: |
9c0ac0fd | 5227 | fputs ("<", file); break; |
c8975385 | 5228 | case GE: |
9c0ac0fd | 5229 | fputs ("<=", file); break; |
c8975385 | 5230 | case GEU: |
9c0ac0fd | 5231 | fputs ("<<=", file); break; |
c8975385 | 5232 | case GTU: |
9c0ac0fd | 5233 | fputs ("<<", file); break; |
c8975385 | 5234 | case LT: |
9c0ac0fd | 5235 | fputs (">", file); break; |
c8975385 | 5236 | case LE: |
9c0ac0fd | 5237 | fputs (">=", file); break; |
c8975385 | 5238 | case LEU: |
9c0ac0fd | 5239 | fputs (">>=", file); break; |
c8975385 | 5240 | case LTU: |
9c0ac0fd | 5241 | fputs (">>", file); break; |
c8975385 | 5242 | default: |
ecf2283d | 5243 | gcc_unreachable (); |
6d36483b | 5244 | } |
c8975385 | 5245 | return; |
5246 | case 'B': /* Condition, (B)oth swapped and negate. */ | |
5247 | switch (GET_CODE (x)) | |
5248 | { | |
5249 | case EQ: | |
9c0ac0fd | 5250 | fputs ("<>", file); break; |
c8975385 | 5251 | case NE: |
9c0ac0fd | 5252 | fputs ("=", file); break; |
c8975385 | 5253 | case GT: |
9c0ac0fd | 5254 | fputs (">=", file); break; |
c8975385 | 5255 | case GE: |
9c0ac0fd | 5256 | fputs (">", file); break; |
c8975385 | 5257 | case GEU: |
9c0ac0fd | 5258 | fputs (">>", file); break; |
c8975385 | 5259 | case GTU: |
9c0ac0fd | 5260 | fputs (">>=", file); break; |
c8975385 | 5261 | case LT: |
9c0ac0fd | 5262 | fputs ("<=", file); break; |
c8975385 | 5263 | case LE: |
9c0ac0fd | 5264 | fputs ("<", file); break; |
c8975385 | 5265 | case LEU: |
9c0ac0fd | 5266 | fputs ("<<", file); break; |
c8975385 | 5267 | case LTU: |
9c0ac0fd | 5268 | fputs ("<<=", file); break; |
c8975385 | 5269 | default: |
ecf2283d | 5270 | gcc_unreachable (); |
6d36483b | 5271 | } |
c8975385 | 5272 | return; |
5273 | case 'k': | |
ecf2283d | 5274 | gcc_assert (GET_CODE (x) == CONST_INT); |
5275 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, ~INTVAL (x)); | |
5276 | return; | |
5e3c5739 | 5277 | case 'Q': |
ecf2283d | 5278 | gcc_assert (GET_CODE (x) == CONST_INT); |
5279 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, 64 - (INTVAL (x) & 63)); | |
5280 | return; | |
e5965947 | 5281 | case 'L': |
ecf2283d | 5282 | gcc_assert (GET_CODE (x) == CONST_INT); |
5283 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, 32 - (INTVAL (x) & 31)); | |
5284 | return; | |
edb1ad78 | 5285 | case 'o': |
5286 | gcc_assert (GET_CODE (x) == CONST_INT | |
5287 | && (INTVAL (x) == 1 || INTVAL (x) == 2 || INTVAL (x) == 3)); | |
bcfa200d | 5288 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (x)); |
edb1ad78 | 5289 | return; |
3a16146d | 5290 | case 'O': |
ecf2283d | 5291 | gcc_assert (GET_CODE (x) == CONST_INT && exact_log2 (INTVAL (x)) >= 0); |
5292 | fprintf (file, "%d", exact_log2 (INTVAL (x))); | |
5293 | return; | |
5e3c5739 | 5294 | case 'p': |
ecf2283d | 5295 | gcc_assert (GET_CODE (x) == CONST_INT); |
5296 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, 63 - (INTVAL (x) & 63)); | |
5297 | return; | |
e5965947 | 5298 | case 'P': |
ecf2283d | 5299 | gcc_assert (GET_CODE (x) == CONST_INT); |
5300 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, 31 - (INTVAL (x) & 31)); | |
5301 | return; | |
c8975385 | 5302 | case 'I': |
5303 | if (GET_CODE (x) == CONST_INT) | |
5304 | fputs ("i", file); | |
5305 | return; | |
87ad11b0 | 5306 | case 'M': |
27ef382d | 5307 | case 'F': |
87ad11b0 | 5308 | switch (GET_CODE (XEXP (x, 0))) |
5309 | { | |
5310 | case PRE_DEC: | |
5311 | case PRE_INC: | |
e4065f95 | 5312 | if (ASSEMBLER_DIALECT == 0) |
5313 | fputs ("s,mb", file); | |
5314 | else | |
5315 | fputs (",mb", file); | |
87ad11b0 | 5316 | break; |
5317 | case POST_DEC: | |
5318 | case POST_INC: | |
e4065f95 | 5319 | if (ASSEMBLER_DIALECT == 0) |
5320 | fputs ("s,ma", file); | |
5321 | else | |
5322 | fputs (",ma", file); | |
87ad11b0 | 5323 | break; |
27ef382d | 5324 | case PLUS: |
dbd3d89d | 5325 | if (GET_CODE (XEXP (XEXP (x, 0), 0)) == REG |
5326 | && GET_CODE (XEXP (XEXP (x, 0), 1)) == REG) | |
5327 | { | |
5328 | if (ASSEMBLER_DIALECT == 0) | |
5329 | fputs ("x", file); | |
5330 | } | |
5331 | else if (GET_CODE (XEXP (XEXP (x, 0), 0)) == MULT | |
5332 | || GET_CODE (XEXP (XEXP (x, 0), 1)) == MULT) | |
e4065f95 | 5333 | { |
5334 | if (ASSEMBLER_DIALECT == 0) | |
5335 | fputs ("x,s", file); | |
5336 | else | |
5337 | fputs (",s", file); | |
5338 | } | |
5339 | else if (code == 'F' && ASSEMBLER_DIALECT == 0) | |
27ef382d | 5340 | fputs ("s", file); |
87ad11b0 | 5341 | break; |
5342 | default: | |
e4065f95 | 5343 | if (code == 'F' && ASSEMBLER_DIALECT == 0) |
27ef382d | 5344 | fputs ("s", file); |
87ad11b0 | 5345 | break; |
5346 | } | |
5347 | return; | |
5348 | case 'G': | |
e202682d | 5349 | pa_output_global_address (file, x, 0); |
f9333726 | 5350 | return; |
5351 | case 'H': | |
e202682d | 5352 | pa_output_global_address (file, x, 1); |
87ad11b0 | 5353 | return; |
5354 | case 0: /* Don't do anything special */ | |
5355 | break; | |
42faba01 | 5356 | case 'Z': |
5357 | { | |
5358 | unsigned op[3]; | |
fb22aedc | 5359 | compute_zdepwi_operands (INTVAL (x), op); |
42faba01 | 5360 | fprintf (file, "%d,%d,%d", op[0], op[1], op[2]); |
5361 | return; | |
5362 | } | |
5e3c5739 | 5363 | case 'z': |
5364 | { | |
5365 | unsigned op[3]; | |
5366 | compute_zdepdi_operands (INTVAL (x), op); | |
5367 | fprintf (file, "%d,%d,%d", op[0], op[1], op[2]); | |
5368 | return; | |
5369 | } | |
c9cc98e1 | 5370 | case 'c': |
5371 | /* We can get here from a .vtable_inherit due to our | |
5372 | CONSTANT_ADDRESS_P rejecting perfectly good constant | |
5373 | addresses. */ | |
5374 | break; | |
87ad11b0 | 5375 | default: |
ecf2283d | 5376 | gcc_unreachable (); |
87ad11b0 | 5377 | } |
5378 | if (GET_CODE (x) == REG) | |
df0651dc | 5379 | { |
35661368 | 5380 | fputs (reg_names [REGNO (x)], file); |
5e3c5739 | 5381 | if (TARGET_64BIT && FP_REG_P (x) && GET_MODE_SIZE (GET_MODE (x)) <= 4) |
5382 | { | |
5383 | fputs ("R", file); | |
5384 | return; | |
5385 | } | |
5386 | if (FP_REG_P (x) | |
5387 | && GET_MODE_SIZE (GET_MODE (x)) <= 4 | |
5388 | && (REGNO (x) & 1) == 0) | |
35661368 | 5389 | fputs ("L", file); |
df0651dc | 5390 | } |
87ad11b0 | 5391 | else if (GET_CODE (x) == MEM) |
5392 | { | |
5393 | int size = GET_MODE_SIZE (GET_MODE (x)); | |
f7dff90d | 5394 | rtx base = NULL_RTX; |
87ad11b0 | 5395 | switch (GET_CODE (XEXP (x, 0))) |
5396 | { | |
5397 | case PRE_DEC: | |
5398 | case POST_DEC: | |
5e3c5739 | 5399 | base = XEXP (XEXP (x, 0), 0); |
34940871 | 5400 | fprintf (file, "-%d(%s)", size, reg_names [REGNO (base)]); |
87ad11b0 | 5401 | break; |
5402 | case PRE_INC: | |
5403 | case POST_INC: | |
5e3c5739 | 5404 | base = XEXP (XEXP (x, 0), 0); |
34940871 | 5405 | fprintf (file, "%d(%s)", size, reg_names [REGNO (base)]); |
87ad11b0 | 5406 | break; |
dbd3d89d | 5407 | case PLUS: |
5408 | if (GET_CODE (XEXP (XEXP (x, 0), 0)) == MULT) | |
34940871 | 5409 | fprintf (file, "%s(%s)", |
27ef382d | 5410 | reg_names [REGNO (XEXP (XEXP (XEXP (x, 0), 0), 0))], |
5411 | reg_names [REGNO (XEXP (XEXP (x, 0), 1))]); | |
dbd3d89d | 5412 | else if (GET_CODE (XEXP (XEXP (x, 0), 1)) == MULT) |
34940871 | 5413 | fprintf (file, "%s(%s)", |
27ef382d | 5414 | reg_names [REGNO (XEXP (XEXP (XEXP (x, 0), 1), 0))], |
5415 | reg_names [REGNO (XEXP (XEXP (x, 0), 0))]); | |
dbd3d89d | 5416 | else if (GET_CODE (XEXP (XEXP (x, 0), 0)) == REG |
5417 | && GET_CODE (XEXP (XEXP (x, 0), 1)) == REG) | |
5418 | { | |
5419 | /* Because the REG_POINTER flag can get lost during reload, | |
e8248b41 | 5420 | pa_legitimate_address_p canonicalizes the order of the |
dbd3d89d | 5421 | index and base registers in the combined move patterns. */ |
5422 | rtx base = XEXP (XEXP (x, 0), 1); | |
5423 | rtx index = XEXP (XEXP (x, 0), 0); | |
5424 | ||
5425 | fprintf (file, "%s(%s)", | |
5426 | reg_names [REGNO (index)], reg_names [REGNO (base)]); | |
5427 | } | |
27ef382d | 5428 | else |
5429 | output_address (XEXP (x, 0)); | |
87ad11b0 | 5430 | break; |
dbd3d89d | 5431 | default: |
5432 | output_address (XEXP (x, 0)); | |
5433 | break; | |
87ad11b0 | 5434 | } |
5435 | } | |
87ad11b0 | 5436 | else |
5437 | output_addr_const (file, x); | |
5438 | } | |
5439 | ||
6dc3b0d9 | 5440 | /* output a SYMBOL_REF or a CONST expression involving a SYMBOL_REF. */ |
87ad11b0 | 5441 | |
5442 | void | |
e202682d | 5443 | pa_output_global_address (FILE *file, rtx x, int round_constant) |
87ad11b0 | 5444 | { |
2ee034bc | 5445 | |
5446 | /* Imagine (high (const (plus ...))). */ | |
5447 | if (GET_CODE (x) == HIGH) | |
5448 | x = XEXP (x, 0); | |
5449 | ||
611a88e1 | 5450 | if (GET_CODE (x) == SYMBOL_REF && read_only_operand (x, VOIDmode)) |
5f43b4f6 | 5451 | output_addr_const (file, x); |
b4a7bf10 | 5452 | else if (GET_CODE (x) == SYMBOL_REF && !flag_pic) |
87ad11b0 | 5453 | { |
5f43b4f6 | 5454 | output_addr_const (file, x); |
9c0ac0fd | 5455 | fputs ("-$global$", file); |
87ad11b0 | 5456 | } |
5457 | else if (GET_CODE (x) == CONST) | |
5458 | { | |
611a88e1 | 5459 | const char *sep = ""; |
87ad11b0 | 5460 | int offset = 0; /* assembler wants -$global$ at end */ |
33ae0dba | 5461 | rtx base = NULL_RTX; |
6d36483b | 5462 | |
ecf2283d | 5463 | switch (GET_CODE (XEXP (XEXP (x, 0), 0))) |
87ad11b0 | 5464 | { |
8ee2e5f4 | 5465 | case LABEL_REF: |
ecf2283d | 5466 | case SYMBOL_REF: |
87ad11b0 | 5467 | base = XEXP (XEXP (x, 0), 0); |
5468 | output_addr_const (file, base); | |
ecf2283d | 5469 | break; |
5470 | case CONST_INT: | |
5471 | offset = INTVAL (XEXP (XEXP (x, 0), 0)); | |
5472 | break; | |
5473 | default: | |
5474 | gcc_unreachable (); | |
87ad11b0 | 5475 | } |
87ad11b0 | 5476 | |
ecf2283d | 5477 | switch (GET_CODE (XEXP (XEXP (x, 0), 1))) |
87ad11b0 | 5478 | { |
8ee2e5f4 | 5479 | case LABEL_REF: |
ecf2283d | 5480 | case SYMBOL_REF: |
87ad11b0 | 5481 | base = XEXP (XEXP (x, 0), 1); |
5482 | output_addr_const (file, base); | |
ecf2283d | 5483 | break; |
5484 | case CONST_INT: | |
5485 | offset = INTVAL (XEXP (XEXP (x, 0), 1)); | |
5486 | break; | |
5487 | default: | |
5488 | gcc_unreachable (); | |
87ad11b0 | 5489 | } |
87ad11b0 | 5490 | |
f9333726 | 5491 | /* How bogus. The compiler is apparently responsible for |
5492 | rounding the constant if it uses an LR field selector. | |
5493 | ||
5494 | The linker and/or assembler seem a better place since | |
5495 | they have to do this kind of thing already. | |
5496 | ||
5497 | If we fail to do this, HP's optimizing linker may eliminate | |
5498 | an addil, but not update the ldw/stw/ldo instruction that | |
5499 | uses the result of the addil. */ | |
5500 | if (round_constant) | |
5501 | offset = ((offset + 0x1000) & ~0x1fff); | |
5502 | ||
ecf2283d | 5503 | switch (GET_CODE (XEXP (x, 0))) |
87ad11b0 | 5504 | { |
ecf2283d | 5505 | case PLUS: |
87ad11b0 | 5506 | if (offset < 0) |
5507 | { | |
5508 | offset = -offset; | |
5509 | sep = "-"; | |
5510 | } | |
5511 | else | |
5512 | sep = "+"; | |
ecf2283d | 5513 | break; |
5514 | ||
5515 | case MINUS: | |
5516 | gcc_assert (GET_CODE (XEXP (XEXP (x, 0), 0)) == SYMBOL_REF); | |
5517 | sep = "-"; | |
5518 | break; | |
87ad11b0 | 5519 | |
ecf2283d | 5520 | default: |
5521 | gcc_unreachable (); | |
5522 | } | |
5523 | ||
611a88e1 | 5524 | if (!read_only_operand (base, VOIDmode) && !flag_pic) |
9c0ac0fd | 5525 | fputs ("-$global$", file); |
f9333726 | 5526 | if (offset) |
ea52c577 | 5527 | fprintf (file, "%s%d", sep, offset); |
87ad11b0 | 5528 | } |
5529 | else | |
5530 | output_addr_const (file, x); | |
5531 | } | |
5532 | ||
92c473b8 | 5533 | /* Output boilerplate text to appear at the beginning of the file. |
5534 | There are several possible versions. */ | |
5535 | #define aputs(x) fputs(x, asm_out_file) | |
5536 | static inline void | |
5c1d8983 | 5537 | pa_file_start_level (void) |
92c473b8 | 5538 | { |
5539 | if (TARGET_64BIT) | |
5540 | aputs ("\t.LEVEL 2.0w\n"); | |
5541 | else if (TARGET_PA_20) | |
5542 | aputs ("\t.LEVEL 2.0\n"); | |
5543 | else if (TARGET_PA_11) | |
5544 | aputs ("\t.LEVEL 1.1\n"); | |
5545 | else | |
5546 | aputs ("\t.LEVEL 1.0\n"); | |
5547 | } | |
5548 | ||
5549 | static inline void | |
5c1d8983 | 5550 | pa_file_start_space (int sortspace) |
92c473b8 | 5551 | { |
5552 | aputs ("\t.SPACE $PRIVATE$"); | |
5553 | if (sortspace) | |
5554 | aputs (",SORT=16"); | |
8151bf30 | 5555 | aputs ("\n\t.SUBSPA $DATA$,QUAD=1,ALIGN=8,ACCESS=31"); |
5556 | if (flag_tm) | |
5557 | aputs ("\n\t.SUBSPA $TM_CLONE_TABLE$,QUAD=1,ALIGN=8,ACCESS=31"); | |
5558 | aputs ("\n\t.SUBSPA $BSS$,QUAD=1,ALIGN=8,ACCESS=31,ZERO,SORT=82" | |
5559 | "\n\t.SPACE $TEXT$"); | |
92c473b8 | 5560 | if (sortspace) |
5561 | aputs (",SORT=8"); | |
5562 | aputs ("\n\t.SUBSPA $LIT$,QUAD=0,ALIGN=8,ACCESS=44" | |
8151bf30 | 5563 | "\n\t.SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=44,CODE_ONLY\n"); |
92c473b8 | 5564 | } |
5565 | ||
5566 | static inline void | |
5c1d8983 | 5567 | pa_file_start_file (int want_version) |
92c473b8 | 5568 | { |
5569 | if (write_symbols != NO_DEBUG) | |
5570 | { | |
5571 | output_file_directive (asm_out_file, main_input_filename); | |
5572 | if (want_version) | |
5573 | aputs ("\t.version\t\"01.01\"\n"); | |
5574 | } | |
5575 | } | |
5576 | ||
5577 | static inline void | |
5c1d8983 | 5578 | pa_file_start_mcount (const char *aswhat) |
92c473b8 | 5579 | { |
5580 | if (profile_flag) | |
5581 | fprintf (asm_out_file, "\t.IMPORT _mcount,%s\n", aswhat); | |
5582 | } | |
5583 | ||
5584 | static void | |
5c1d8983 | 5585 | pa_elf_file_start (void) |
92c473b8 | 5586 | { |
5587 | pa_file_start_level (); | |
5588 | pa_file_start_mcount ("ENTRY"); | |
5589 | pa_file_start_file (0); | |
5590 | } | |
5591 | ||
5592 | static void | |
5c1d8983 | 5593 | pa_som_file_start (void) |
92c473b8 | 5594 | { |
5595 | pa_file_start_level (); | |
5596 | pa_file_start_space (0); | |
5597 | aputs ("\t.IMPORT $global$,DATA\n" | |
5598 | "\t.IMPORT $$dyncall,MILLICODE\n"); | |
5599 | pa_file_start_mcount ("CODE"); | |
5600 | pa_file_start_file (0); | |
5601 | } | |
5602 | ||
5603 | static void | |
5c1d8983 | 5604 | pa_linux_file_start (void) |
92c473b8 | 5605 | { |
5606 | pa_file_start_file (1); | |
5607 | pa_file_start_level (); | |
5608 | pa_file_start_mcount ("CODE"); | |
5609 | } | |
5610 | ||
5611 | static void | |
5c1d8983 | 5612 | pa_hpux64_gas_file_start (void) |
92c473b8 | 5613 | { |
5614 | pa_file_start_level (); | |
5615 | #ifdef ASM_OUTPUT_TYPE_DIRECTIVE | |
5616 | if (profile_flag) | |
5617 | ASM_OUTPUT_TYPE_DIRECTIVE (asm_out_file, "_mcount", "function"); | |
5618 | #endif | |
5619 | pa_file_start_file (1); | |
5620 | } | |
5621 | ||
5622 | static void | |
5c1d8983 | 5623 | pa_hpux64_hpas_file_start (void) |
92c473b8 | 5624 | { |
5625 | pa_file_start_level (); | |
5626 | pa_file_start_space (1); | |
5627 | pa_file_start_mcount ("CODE"); | |
5628 | pa_file_start_file (0); | |
5629 | } | |
5630 | #undef aputs | |
5631 | ||
4e75439e | 5632 | /* Search the deferred plabel list for SYMBOL and return its internal |
5633 | label. If an entry for SYMBOL is not found, a new entry is created. */ | |
5634 | ||
5635 | rtx | |
e202682d | 5636 | pa_get_deferred_plabel (rtx symbol) |
ece88821 | 5637 | { |
5f43b4f6 | 5638 | const char *fname = XSTR (symbol, 0); |
ece88821 | 5639 | size_t i; |
5640 | ||
5641 | /* See if we have already put this function on the list of deferred | |
5642 | plabels. This list is generally small, so a liner search is not | |
5643 | too ugly. If it proves too slow replace it with something faster. */ | |
5644 | for (i = 0; i < n_deferred_plabels; i++) | |
5f43b4f6 | 5645 | if (strcmp (fname, XSTR (deferred_plabels[i].symbol, 0)) == 0) |
ece88821 | 5646 | break; |
5647 | ||
5648 | /* If the deferred plabel list is empty, or this entry was not found | |
5649 | on the list, create a new entry on the list. */ | |
5650 | if (deferred_plabels == NULL || i == n_deferred_plabels) | |
5651 | { | |
5f43b4f6 | 5652 | tree id; |
5653 | ||
ece88821 | 5654 | if (deferred_plabels == 0) |
25a27413 | 5655 | deferred_plabels = ggc_alloc<deferred_plabel> (); |
ece88821 | 5656 | else |
ba72912a | 5657 | deferred_plabels = GGC_RESIZEVEC (struct deferred_plabel, |
5658 | deferred_plabels, | |
5659 | n_deferred_plabels + 1); | |
ece88821 | 5660 | |
5661 | i = n_deferred_plabels++; | |
5662 | deferred_plabels[i].internal_label = gen_label_rtx (); | |
5f43b4f6 | 5663 | deferred_plabels[i].symbol = symbol; |
ece88821 | 5664 | |
5f43b4f6 | 5665 | /* Gross. We have just implicitly taken the address of this |
5666 | function. Mark it in the same manner as assemble_name. */ | |
5667 | id = maybe_get_identifier (targetm.strip_name_encoding (fname)); | |
5668 | if (id) | |
5669 | mark_referenced (id); | |
ece88821 | 5670 | } |
5671 | ||
4e75439e | 5672 | return deferred_plabels[i].internal_label; |
ece88821 | 5673 | } |
5674 | ||
f6940372 | 5675 | static void |
5c1d8983 | 5676 | output_deferred_plabels (void) |
5cc6b2bc | 5677 | { |
e11bd7e5 | 5678 | size_t i; |
78962d38 | 5679 | |
5680 | /* If we have some deferred plabels, then we need to switch into the | |
5681 | data or readonly data section, and align it to a 4 byte boundary | |
191ec5a2 | 5682 | before outputting the deferred plabels. */ |
5cc6b2bc | 5683 | if (n_deferred_plabels) |
5684 | { | |
78962d38 | 5685 | switch_to_section (flag_pic ? data_section : readonly_data_section); |
f6940372 | 5686 | ASM_OUTPUT_ALIGN (asm_out_file, TARGET_64BIT ? 3 : 2); |
5cc6b2bc | 5687 | } |
5688 | ||
5689 | /* Now output the deferred plabels. */ | |
5690 | for (i = 0; i < n_deferred_plabels; i++) | |
5691 | { | |
c5559ed4 | 5692 | targetm.asm_out.internal_label (asm_out_file, "L", |
f6940372 | 5693 | CODE_LABEL_NUMBER (deferred_plabels[i].internal_label)); |
5f43b4f6 | 5694 | assemble_integer (deferred_plabels[i].symbol, |
b70ea764 | 5695 | TARGET_64BIT ? 8 : 4, TARGET_64BIT ? 64 : 32, 1); |
5cc6b2bc | 5696 | } |
5697 | } | |
5698 | ||
3912b4d0 | 5699 | /* Initialize optabs to point to emulation routines. */ |
5700 | ||
f2f543a3 | 5701 | static void |
3912b4d0 | 5702 | pa_init_libfuncs (void) |
f2f543a3 | 5703 | { |
3912b4d0 | 5704 | if (HPUX_LONG_DOUBLE_LIBRARY) |
5705 | { | |
5706 | set_optab_libfunc (add_optab, TFmode, "_U_Qfadd"); | |
5707 | set_optab_libfunc (sub_optab, TFmode, "_U_Qfsub"); | |
5708 | set_optab_libfunc (smul_optab, TFmode, "_U_Qfmpy"); | |
5709 | set_optab_libfunc (sdiv_optab, TFmode, "_U_Qfdiv"); | |
5710 | set_optab_libfunc (smin_optab, TFmode, "_U_Qmin"); | |
5711 | set_optab_libfunc (smax_optab, TFmode, "_U_Qfmax"); | |
5712 | set_optab_libfunc (sqrt_optab, TFmode, "_U_Qfsqrt"); | |
5713 | set_optab_libfunc (abs_optab, TFmode, "_U_Qfabs"); | |
5714 | set_optab_libfunc (neg_optab, TFmode, "_U_Qfneg"); | |
5715 | ||
5716 | set_optab_libfunc (eq_optab, TFmode, "_U_Qfeq"); | |
5717 | set_optab_libfunc (ne_optab, TFmode, "_U_Qfne"); | |
5718 | set_optab_libfunc (gt_optab, TFmode, "_U_Qfgt"); | |
5719 | set_optab_libfunc (ge_optab, TFmode, "_U_Qfge"); | |
5720 | set_optab_libfunc (lt_optab, TFmode, "_U_Qflt"); | |
5721 | set_optab_libfunc (le_optab, TFmode, "_U_Qfle"); | |
5722 | set_optab_libfunc (unord_optab, TFmode, "_U_Qfunord"); | |
5723 | ||
5724 | set_conv_libfunc (sext_optab, TFmode, SFmode, "_U_Qfcnvff_sgl_to_quad"); | |
5725 | set_conv_libfunc (sext_optab, TFmode, DFmode, "_U_Qfcnvff_dbl_to_quad"); | |
5726 | set_conv_libfunc (trunc_optab, SFmode, TFmode, "_U_Qfcnvff_quad_to_sgl"); | |
5727 | set_conv_libfunc (trunc_optab, DFmode, TFmode, "_U_Qfcnvff_quad_to_dbl"); | |
5728 | ||
5729 | set_conv_libfunc (sfix_optab, SImode, TFmode, | |
5730 | TARGET_64BIT ? "__U_Qfcnvfxt_quad_to_sgl" | |
5731 | : "_U_Qfcnvfxt_quad_to_sgl"); | |
5732 | set_conv_libfunc (sfix_optab, DImode, TFmode, | |
5733 | "_U_Qfcnvfxt_quad_to_dbl"); | |
5734 | set_conv_libfunc (ufix_optab, SImode, TFmode, | |
5735 | "_U_Qfcnvfxt_quad_to_usgl"); | |
5736 | set_conv_libfunc (ufix_optab, DImode, TFmode, | |
5737 | "_U_Qfcnvfxt_quad_to_udbl"); | |
5738 | ||
5739 | set_conv_libfunc (sfloat_optab, TFmode, SImode, | |
5740 | "_U_Qfcnvxf_sgl_to_quad"); | |
5741 | set_conv_libfunc (sfloat_optab, TFmode, DImode, | |
5742 | "_U_Qfcnvxf_dbl_to_quad"); | |
5743 | set_conv_libfunc (ufloat_optab, TFmode, SImode, | |
5744 | "_U_Qfcnvxf_usgl_to_quad"); | |
5745 | set_conv_libfunc (ufloat_optab, TFmode, DImode, | |
5746 | "_U_Qfcnvxf_udbl_to_quad"); | |
5747 | } | |
d094e1b2 | 5748 | |
5749 | if (TARGET_SYNC_LIBCALL) | |
8ef0dc80 | 5750 | init_sync_libfuncs (8); |
f2f543a3 | 5751 | } |
f2f543a3 | 5752 | |
87ad11b0 | 5753 | /* HP's millicode routines mean something special to the assembler. |
5754 | Keep track of which ones we have used. */ | |
5755 | ||
c2271c34 | 5756 | enum millicodes { remI, remU, divI, divU, mulI, end1000 }; |
5c1d8983 | 5757 | static void import_milli (enum millicodes); |
ea52c577 | 5758 | static char imported[(int) end1000]; |
c2271c34 | 5759 | static const char * const milli_names[] = {"remI", "remU", "divI", "divU", "mulI"}; |
e99c3a1d | 5760 | static const char import_string[] = ".IMPORT $$....,MILLICODE"; |
87ad11b0 | 5761 | #define MILLI_START 10 |
5762 | ||
57ed30e5 | 5763 | static void |
5c1d8983 | 5764 | import_milli (enum millicodes code) |
87ad11b0 | 5765 | { |
5766 | char str[sizeof (import_string)]; | |
6d36483b | 5767 | |
ea52c577 | 5768 | if (!imported[(int) code]) |
87ad11b0 | 5769 | { |
ea52c577 | 5770 | imported[(int) code] = 1; |
87ad11b0 | 5771 | strcpy (str, import_string); |
ea52c577 | 5772 | strncpy (str + MILLI_START, milli_names[(int) code], 4); |
87ad11b0 | 5773 | output_asm_insn (str, 0); |
5774 | } | |
5775 | } | |
5776 | ||
6d36483b | 5777 | /* The register constraints have put the operands and return value in |
6dc3b0d9 | 5778 | the proper registers. */ |
87ad11b0 | 5779 | |
611a88e1 | 5780 | const char * |
91a55c11 | 5781 | pa_output_mul_insn (int unsignedp ATTRIBUTE_UNUSED, rtx_insn *insn) |
87ad11b0 | 5782 | { |
d178f670 | 5783 | import_milli (mulI); |
e202682d | 5784 | return pa_output_millicode_call (insn, gen_rtx_SYMBOL_REF (Pmode, "$$mulI")); |
87ad11b0 | 5785 | } |
5786 | ||
6dc3b0d9 | 5787 | /* Emit the rtl for doing a division by a constant. */ |
87ad11b0 | 5788 | |
d178f670 | 5789 | /* Do magic division millicodes exist for this value? */ |
e202682d | 5790 | const int pa_magic_milli[]= {0, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1}; |
87ad11b0 | 5791 | |
6d36483b | 5792 | /* We'll use an array to keep track of the magic millicodes and |
87ad11b0 | 5793 | whether or not we've used them already. [n][0] is signed, [n][1] is |
6dc3b0d9 | 5794 | unsigned. */ |
87ad11b0 | 5795 | |
87ad11b0 | 5796 | static int div_milli[16][2]; |
5797 | ||
87ad11b0 | 5798 | int |
e202682d | 5799 | pa_emit_hpdiv_const (rtx *operands, int unsignedp) |
87ad11b0 | 5800 | { |
5801 | if (GET_CODE (operands[2]) == CONST_INT | |
5802 | && INTVAL (operands[2]) > 0 | |
5803 | && INTVAL (operands[2]) < 16 | |
e202682d | 5804 | && pa_magic_milli[INTVAL (operands[2])]) |
87ad11b0 | 5805 | { |
2013ddf6 | 5806 | rtx ret = gen_rtx_REG (SImode, TARGET_64BIT ? 2 : 31); |
5807 | ||
ad851752 | 5808 | emit_move_insn (gen_rtx_REG (SImode, 26), operands[1]); |
87ad11b0 | 5809 | emit |
75b1a41a | 5810 | (gen_rtx_PARALLEL |
5811 | (VOIDmode, | |
d1f9b275 | 5812 | gen_rtvec (6, gen_rtx_SET (gen_rtx_REG (SImode, 29), |
ad851752 | 5813 | gen_rtx_fmt_ee (unsignedp ? UDIV : DIV, |
5814 | SImode, | |
5815 | gen_rtx_REG (SImode, 26), | |
5816 | operands[2])), | |
c2078db8 | 5817 | gen_rtx_CLOBBER (VOIDmode, operands[4]), |
ad851752 | 5818 | gen_rtx_CLOBBER (VOIDmode, operands[3]), |
5819 | gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (SImode, 26)), | |
5820 | gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (SImode, 25)), | |
2013ddf6 | 5821 | gen_rtx_CLOBBER (VOIDmode, ret)))); |
ad851752 | 5822 | emit_move_insn (operands[0], gen_rtx_REG (SImode, 29)); |
87ad11b0 | 5823 | return 1; |
5824 | } | |
5825 | return 0; | |
5826 | } | |
5827 | ||
611a88e1 | 5828 | const char * |
91a55c11 | 5829 | pa_output_div_insn (rtx *operands, int unsignedp, rtx_insn *insn) |
87ad11b0 | 5830 | { |
5831 | int divisor; | |
6d36483b | 5832 | |
5833 | /* If the divisor is a constant, try to use one of the special | |
87ad11b0 | 5834 | opcodes .*/ |
5835 | if (GET_CODE (operands[0]) == CONST_INT) | |
5836 | { | |
d6686e21 | 5837 | static char buf[100]; |
87ad11b0 | 5838 | divisor = INTVAL (operands[0]); |
5839 | if (!div_milli[divisor][unsignedp]) | |
5840 | { | |
d6686e21 | 5841 | div_milli[divisor][unsignedp] = 1; |
87ad11b0 | 5842 | if (unsignedp) |
5843 | output_asm_insn (".IMPORT $$divU_%0,MILLICODE", operands); | |
5844 | else | |
5845 | output_asm_insn (".IMPORT $$divI_%0,MILLICODE", operands); | |
87ad11b0 | 5846 | } |
5847 | if (unsignedp) | |
d6686e21 | 5848 | { |
4840a03a | 5849 | sprintf (buf, "$$divU_" HOST_WIDE_INT_PRINT_DEC, |
5850 | INTVAL (operands[0])); | |
e202682d | 5851 | return pa_output_millicode_call (insn, |
5852 | gen_rtx_SYMBOL_REF (SImode, buf)); | |
d6686e21 | 5853 | } |
5854 | else | |
5855 | { | |
4840a03a | 5856 | sprintf (buf, "$$divI_" HOST_WIDE_INT_PRINT_DEC, |
5857 | INTVAL (operands[0])); | |
e202682d | 5858 | return pa_output_millicode_call (insn, |
5859 | gen_rtx_SYMBOL_REF (SImode, buf)); | |
d6686e21 | 5860 | } |
87ad11b0 | 5861 | } |
6dc3b0d9 | 5862 | /* Divisor isn't a special constant. */ |
87ad11b0 | 5863 | else |
5864 | { | |
5865 | if (unsignedp) | |
5866 | { | |
5867 | import_milli (divU); | |
e202682d | 5868 | return pa_output_millicode_call (insn, |
ad851752 | 5869 | gen_rtx_SYMBOL_REF (SImode, "$$divU")); |
87ad11b0 | 5870 | } |
5871 | else | |
5872 | { | |
5873 | import_milli (divI); | |
e202682d | 5874 | return pa_output_millicode_call (insn, |
ad851752 | 5875 | gen_rtx_SYMBOL_REF (SImode, "$$divI")); |
87ad11b0 | 5876 | } |
5877 | } | |
5878 | } | |
5879 | ||
6dc3b0d9 | 5880 | /* Output a $$rem millicode to do mod. */ |
87ad11b0 | 5881 | |
611a88e1 | 5882 | const char * |
91a55c11 | 5883 | pa_output_mod_insn (int unsignedp, rtx_insn *insn) |
87ad11b0 | 5884 | { |
5885 | if (unsignedp) | |
5886 | { | |
5887 | import_milli (remU); | |
e202682d | 5888 | return pa_output_millicode_call (insn, |
5889 | gen_rtx_SYMBOL_REF (SImode, "$$remU")); | |
87ad11b0 | 5890 | } |
5891 | else | |
5892 | { | |
5893 | import_milli (remI); | |
e202682d | 5894 | return pa_output_millicode_call (insn, |
5895 | gen_rtx_SYMBOL_REF (SImode, "$$remI")); | |
87ad11b0 | 5896 | } |
5897 | } | |
5898 | ||
5899 | void | |
89dcddd6 | 5900 | pa_output_arg_descriptor (rtx_insn *call_insn) |
87ad11b0 | 5901 | { |
611a88e1 | 5902 | const char *arg_regs[4]; |
3754d046 | 5903 | machine_mode arg_mode; |
df0651dc | 5904 | rtx link; |
87ad11b0 | 5905 | int i, output_flag = 0; |
5906 | int regno; | |
6d36483b | 5907 | |
5e3c5739 | 5908 | /* We neither need nor want argument location descriptors for the |
5d0619cc | 5909 | 64bit runtime environment or the ELF32 environment. */ |
5910 | if (TARGET_64BIT || TARGET_ELF32) | |
5e3c5739 | 5911 | return; |
5912 | ||
87ad11b0 | 5913 | for (i = 0; i < 4; i++) |
5914 | arg_regs[i] = 0; | |
5915 | ||
738176ab | 5916 | /* Specify explicitly that no argument relocations should take place |
5917 | if using the portable runtime calling conventions. */ | |
5918 | if (TARGET_PORTABLE_RUNTIME) | |
5919 | { | |
9c0ac0fd | 5920 | fputs ("\t.CALL ARGW0=NO,ARGW1=NO,ARGW2=NO,ARGW3=NO,RETVAL=NO\n", |
5921 | asm_out_file); | |
738176ab | 5922 | return; |
5923 | } | |
5924 | ||
aa90bb35 | 5925 | gcc_assert (CALL_P (call_insn)); |
ecf2283d | 5926 | for (link = CALL_INSN_FUNCTION_USAGE (call_insn); |
5927 | link; link = XEXP (link, 1)) | |
87ad11b0 | 5928 | { |
df0651dc | 5929 | rtx use = XEXP (link, 0); |
c12afafd | 5930 | |
df0651dc | 5931 | if (! (GET_CODE (use) == USE |
5932 | && GET_CODE (XEXP (use, 0)) == REG | |
5933 | && FUNCTION_ARG_REGNO_P (REGNO (XEXP (use, 0))))) | |
c12afafd | 5934 | continue; |
5935 | ||
df0651dc | 5936 | arg_mode = GET_MODE (XEXP (use, 0)); |
5937 | regno = REGNO (XEXP (use, 0)); | |
87ad11b0 | 5938 | if (regno >= 23 && regno <= 26) |
372ef038 | 5939 | { |
5940 | arg_regs[26 - regno] = "GR"; | |
5941 | if (arg_mode == DImode) | |
5942 | arg_regs[25 - regno] = "GR"; | |
5943 | } | |
df0651dc | 5944 | else if (regno >= 32 && regno <= 39) |
87ad11b0 | 5945 | { |
5946 | if (arg_mode == SFmode) | |
df0651dc | 5947 | arg_regs[(regno - 32) / 2] = "FR"; |
e6ba640e | 5948 | else |
87ad11b0 | 5949 | { |
eeec72c0 | 5950 | #ifndef HP_FP_ARG_DESCRIPTOR_REVERSED |
df0651dc | 5951 | arg_regs[(regno - 34) / 2] = "FR"; |
5952 | arg_regs[(regno - 34) / 2 + 1] = "FU"; | |
87ad11b0 | 5953 | #else |
df0651dc | 5954 | arg_regs[(regno - 34) / 2] = "FU"; |
5955 | arg_regs[(regno - 34) / 2 + 1] = "FR"; | |
87ad11b0 | 5956 | #endif |
5957 | } | |
87ad11b0 | 5958 | } |
5959 | } | |
5960 | fputs ("\t.CALL ", asm_out_file); | |
5961 | for (i = 0; i < 4; i++) | |
5962 | { | |
5963 | if (arg_regs[i]) | |
5964 | { | |
5965 | if (output_flag++) | |
5966 | fputc (',', asm_out_file); | |
5967 | fprintf (asm_out_file, "ARGW%d=%s", i, arg_regs[i]); | |
5968 | } | |
5969 | } | |
5970 | fputc ('\n', asm_out_file); | |
5971 | } | |
5972 | \f | |
e8248b41 | 5973 | /* Inform reload about cases where moving X with a mode MODE to or from |
5974 | a register in RCLASS requires an extra scratch or immediate register. | |
5975 | Return the class needed for the immediate register. */ | |
5ddb2975 | 5976 | |
964229b7 | 5977 | static reg_class_t |
5978 | pa_secondary_reload (bool in_p, rtx x, reg_class_t rclass_i, | |
3754d046 | 5979 | machine_mode mode, secondary_reload_info *sri) |
5655a0e5 | 5980 | { |
c9b20949 | 5981 | int regno; |
964229b7 | 5982 | enum reg_class rclass = (enum reg_class) rclass_i; |
9c0ac0fd | 5983 | |
5655a0e5 | 5984 | /* Handle the easy stuff first. */ |
8deb3959 | 5985 | if (rclass == R1_REGS) |
5655a0e5 | 5986 | return NO_REGS; |
9c0ac0fd | 5987 | |
5655a0e5 | 5988 | if (REG_P (x)) |
5989 | { | |
5990 | regno = REGNO (x); | |
8deb3959 | 5991 | if (rclass == BASE_REG_CLASS && regno < FIRST_PSEUDO_REGISTER) |
5655a0e5 | 5992 | return NO_REGS; |
5993 | } | |
cca0fae1 | 5994 | else |
5995 | regno = -1; | |
87ad11b0 | 5996 | |
5655a0e5 | 5997 | /* If we have something like (mem (mem (...)), we can safely assume the |
5998 | inner MEM will end up in a general register after reloading, so there's | |
5999 | no need for a secondary reload. */ | |
6000 | if (GET_CODE (x) == MEM && GET_CODE (XEXP (x, 0)) == MEM) | |
6001 | return NO_REGS; | |
87ad11b0 | 6002 | |
b4a7bf10 | 6003 | /* Trying to load a constant into a FP register during PIC code |
e8248b41 | 6004 | generation requires %r1 as a scratch register. For float modes, |
6005 | the only legitimate constant is CONST0_RTX. However, there are | |
6006 | a few patterns that accept constant double operands. */ | |
fc44315f | 6007 | if (flag_pic |
8deb3959 | 6008 | && FP_REG_CLASS_P (rclass) |
5655a0e5 | 6009 | && (GET_CODE (x) == CONST_INT || GET_CODE (x) == CONST_DOUBLE)) |
9c0ac0fd | 6010 | { |
e8248b41 | 6011 | switch (mode) |
6012 | { | |
6013 | case SImode: | |
6014 | sri->icode = CODE_FOR_reload_insi_r1; | |
6015 | break; | |
6016 | ||
6017 | case DImode: | |
6018 | sri->icode = CODE_FOR_reload_indi_r1; | |
6019 | break; | |
6020 | ||
6021 | case SFmode: | |
6022 | sri->icode = CODE_FOR_reload_insf_r1; | |
6023 | break; | |
6024 | ||
6025 | case DFmode: | |
6026 | sri->icode = CODE_FOR_reload_indf_r1; | |
6027 | break; | |
6028 | ||
6029 | default: | |
6030 | gcc_unreachable (); | |
6031 | } | |
5655a0e5 | 6032 | return NO_REGS; |
9c0ac0fd | 6033 | } |
9c0ac0fd | 6034 | |
e8248b41 | 6035 | /* Secondary reloads of symbolic expressions require %r1 as a scratch |
6036 | register when we're generating PIC code or when the operand isn't | |
c9b20949 | 6037 | readonly. */ |
e202682d | 6038 | if (pa_symbolic_expression_p (x)) |
c9b20949 | 6039 | { |
6040 | if (GET_CODE (x) == HIGH) | |
6041 | x = XEXP (x, 0); | |
6042 | ||
6043 | if (flag_pic || !read_only_operand (x, VOIDmode)) | |
6044 | { | |
e8248b41 | 6045 | switch (mode) |
6046 | { | |
6047 | case SImode: | |
6048 | sri->icode = CODE_FOR_reload_insi_r1; | |
6049 | break; | |
6050 | ||
6051 | case DImode: | |
6052 | sri->icode = CODE_FOR_reload_indi_r1; | |
6053 | break; | |
6054 | ||
6055 | default: | |
6056 | gcc_unreachable (); | |
6057 | } | |
c9b20949 | 6058 | return NO_REGS; |
6059 | } | |
6060 | } | |
6061 | ||
5655a0e5 | 6062 | /* Profiling showed the PA port spends about 1.3% of its compilation |
6063 | time in true_regnum from calls inside pa_secondary_reload_class. */ | |
6064 | if (regno >= FIRST_PSEUDO_REGISTER || GET_CODE (x) == SUBREG) | |
6065 | regno = true_regnum (x); | |
76a0ced5 | 6066 | |
e8248b41 | 6067 | /* Handle reloads for floating point loads and stores. */ |
7050ff73 | 6068 | if ((regno >= FIRST_PSEUDO_REGISTER || regno == -1) |
8deb3959 | 6069 | && FP_REG_CLASS_P (rclass)) |
7050ff73 | 6070 | { |
e8248b41 | 6071 | if (MEM_P (x)) |
7050ff73 | 6072 | { |
6073 | x = XEXP (x, 0); | |
6074 | ||
18d8d57c | 6075 | /* We don't need a secondary reload for indexed memory addresses. |
6076 | ||
6077 | When INT14_OK_STRICT is true, it might appear that we could | |
6078 | directly allow register indirect memory addresses. However, | |
6079 | this doesn't work because we don't support SUBREGs in | |
6080 | floating-point register copies and reload doesn't tell us | |
6081 | when it's going to use a SUBREG. */ | |
6082 | if (IS_INDEX_ADDR_P (x)) | |
7050ff73 | 6083 | return NO_REGS; |
7050ff73 | 6084 | } |
6085 | ||
6086 | /* Request a secondary reload with a general scratch register | |
9d75589a | 6087 | for everything else. ??? Could symbolic operands be handled |
7050ff73 | 6088 | directly when generating non-pic PA 2.0 code? */ |
6b531606 | 6089 | sri->icode = (in_p |
6090 | ? direct_optab_handler (reload_in_optab, mode) | |
6091 | : direct_optab_handler (reload_out_optab, mode)); | |
7050ff73 | 6092 | return NO_REGS; |
6093 | } | |
6094 | ||
5ddb2975 | 6095 | /* A SAR<->FP register copy requires an intermediate general register |
6096 | and secondary memory. We need a secondary reload with a general | |
6097 | scratch register for spills. */ | |
6098 | if (rclass == SHIFT_REGS) | |
5655a0e5 | 6099 | { |
5ddb2975 | 6100 | /* Handle spill. */ |
6101 | if (regno >= FIRST_PSEUDO_REGISTER || regno < 0) | |
6102 | { | |
6103 | sri->icode = (in_p | |
6104 | ? direct_optab_handler (reload_in_optab, mode) | |
6105 | : direct_optab_handler (reload_out_optab, mode)); | |
6106 | return NO_REGS; | |
6107 | } | |
6108 | ||
6109 | /* Handle FP copy. */ | |
6110 | if (FP_REG_CLASS_P (REGNO_REG_CLASS (regno))) | |
6111 | return GENERAL_REGS; | |
5655a0e5 | 6112 | } |
d2c1d63d | 6113 | |
7c4b32f3 | 6114 | if (regno >= 0 && regno < FIRST_PSEUDO_REGISTER |
5ddb2975 | 6115 | && REGNO_REG_CLASS (regno) == SHIFT_REGS |
6116 | && FP_REG_CLASS_P (rclass)) | |
6117 | return GENERAL_REGS; | |
2ee034bc | 6118 | |
d2c1d63d | 6119 | return NO_REGS; |
87ad11b0 | 6120 | } |
6121 | ||
df6b92e4 | 6122 | /* Implement TARGET_EXTRA_LIVE_ON_ENTRY. The argument pointer |
6123 | is only marked as live on entry by df-scan when it is a fixed | |
6124 | register. It isn't a fixed register in the 64-bit runtime, | |
6125 | so we need to mark it here. */ | |
6126 | ||
6127 | static void | |
6128 | pa_extra_live_on_entry (bitmap regs) | |
6129 | { | |
6130 | if (TARGET_64BIT) | |
6131 | bitmap_set_bit (regs, ARG_POINTER_REGNUM); | |
6132 | } | |
6133 | ||
6134 | /* Implement EH_RETURN_HANDLER_RTX. The MEM needs to be volatile | |
6135 | to prevent it from being deleted. */ | |
6136 | ||
6137 | rtx | |
6138 | pa_eh_return_handler_rtx (void) | |
6139 | { | |
6140 | rtx tmp; | |
6141 | ||
68bc9ae6 | 6142 | tmp = gen_rtx_PLUS (word_mode, hard_frame_pointer_rtx, |
df6b92e4 | 6143 | TARGET_64BIT ? GEN_INT (-16) : GEN_INT (-20)); |
6144 | tmp = gen_rtx_MEM (word_mode, tmp); | |
6145 | tmp->volatil = 1; | |
6146 | return tmp; | |
6147 | } | |
6148 | ||
b981d932 | 6149 | /* In the 32-bit runtime, arguments larger than eight bytes are passed |
6150 | by invisible reference. As a GCC extension, we also pass anything | |
6151 | with a zero or variable size by reference. | |
6152 | ||
6153 | The 64-bit runtime does not describe passing any types by invisible | |
6154 | reference. The internals of GCC can't currently handle passing | |
6155 | empty structures, and zero or variable length arrays when they are | |
6156 | not passed entirely on the stack or by reference. Thus, as a GCC | |
6157 | extension, we pass these types by reference. The HP compiler doesn't | |
6158 | support these types, so hopefully there shouldn't be any compatibility | |
6159 | issues. This may have to be revisited when HP releases a C99 compiler | |
6160 | or updates the ABI. */ | |
6161 | ||
6162 | static bool | |
39cba157 | 6163 | pa_pass_by_reference (cumulative_args_t ca ATTRIBUTE_UNUSED, |
3754d046 | 6164 | machine_mode mode, const_tree type, |
b981d932 | 6165 | bool named ATTRIBUTE_UNUSED) |
6166 | { | |
6167 | HOST_WIDE_INT size; | |
6168 | ||
6169 | if (type) | |
6170 | size = int_size_in_bytes (type); | |
6171 | else | |
6172 | size = GET_MODE_SIZE (mode); | |
6173 | ||
6174 | if (TARGET_64BIT) | |
6175 | return size <= 0; | |
6176 | else | |
6177 | return size <= 0 || size > 8; | |
6178 | } | |
6179 | ||
87ad11b0 | 6180 | enum direction |
3754d046 | 6181 | pa_function_arg_padding (machine_mode mode, const_tree type) |
87ad11b0 | 6182 | { |
ac965869 | 6183 | if (mode == BLKmode |
ef669d1a | 6184 | || (TARGET_64BIT |
6185 | && type | |
6186 | && (AGGREGATE_TYPE_P (type) | |
6187 | || TREE_CODE (type) == COMPLEX_TYPE | |
6188 | || TREE_CODE (type) == VECTOR_TYPE))) | |
ac965869 | 6189 | { |
6190 | /* Return none if justification is not required. */ | |
6191 | if (type | |
6192 | && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST | |
6193 | && (int_size_in_bytes (type) * BITS_PER_UNIT) % PARM_BOUNDARY == 0) | |
6194 | return none; | |
6195 | ||
6196 | /* The directions set here are ignored when a BLKmode argument larger | |
6197 | than a word is placed in a register. Different code is used for | |
6198 | the stack and registers. This makes it difficult to have a | |
6199 | consistent data representation for both the stack and registers. | |
6200 | For both runtimes, the justification and padding for arguments on | |
6201 | the stack and in registers should be identical. */ | |
6202 | if (TARGET_64BIT) | |
6203 | /* The 64-bit runtime specifies left justification for aggregates. */ | |
6204 | return upward; | |
87ad11b0 | 6205 | else |
ac965869 | 6206 | /* The 32-bit runtime architecture specifies right justification. |
6207 | When the argument is passed on the stack, the argument is padded | |
6208 | with garbage on the left. The HP compiler pads with zeros. */ | |
6209 | return downward; | |
87ad11b0 | 6210 | } |
ac965869 | 6211 | |
6212 | if (GET_MODE_BITSIZE (mode) < PARM_BOUNDARY) | |
87ad11b0 | 6213 | return downward; |
87ad11b0 | 6214 | else |
6215 | return none; | |
6216 | } | |
6217 | ||
87ad11b0 | 6218 | \f |
55f54832 | 6219 | /* Do what is necessary for `va_start'. We look at the current function |
6220 | to determine if stdargs or varargs is used and fill in an initial | |
6221 | va_list. A pointer to this constructor is returned. */ | |
87ad11b0 | 6222 | |
b8debbe8 | 6223 | static rtx |
5c1d8983 | 6224 | hppa_builtin_saveregs (void) |
87ad11b0 | 6225 | { |
01251cbc | 6226 | rtx offset, dest; |
87ad11b0 | 6227 | tree fntype = TREE_TYPE (current_function_decl); |
257d99c3 | 6228 | int argadj = ((!stdarg_p (fntype)) |
87ad11b0 | 6229 | ? UNITS_PER_WORD : 0); |
6230 | ||
6231 | if (argadj) | |
29c05e22 | 6232 | offset = plus_constant (Pmode, crtl->args.arg_offset_rtx, argadj); |
87ad11b0 | 6233 | else |
abe32cce | 6234 | offset = crtl->args.arg_offset_rtx; |
9c6d4825 | 6235 | |
5e3c5739 | 6236 | if (TARGET_64BIT) |
6237 | { | |
6238 | int i, off; | |
9840d99d | 6239 | |
5e3c5739 | 6240 | /* Adjust for varargs/stdarg differences. */ |
6241 | if (argadj) | |
29c05e22 | 6242 | offset = plus_constant (Pmode, crtl->args.arg_offset_rtx, -argadj); |
5e3c5739 | 6243 | else |
abe32cce | 6244 | offset = crtl->args.arg_offset_rtx; |
5e3c5739 | 6245 | |
6246 | /* We need to save %r26 .. %r19 inclusive starting at offset -64 | |
6247 | from the incoming arg pointer and growing to larger addresses. */ | |
6248 | for (i = 26, off = -64; i >= 19; i--, off += 8) | |
6249 | emit_move_insn (gen_rtx_MEM (word_mode, | |
29c05e22 | 6250 | plus_constant (Pmode, |
6251 | arg_pointer_rtx, off)), | |
5e3c5739 | 6252 | gen_rtx_REG (word_mode, i)); |
6253 | ||
6254 | /* The incoming args pointer points just beyond the flushback area; | |
8ef587dc | 6255 | normally this is not a serious concern. However, when we are doing |
5e3c5739 | 6256 | varargs/stdargs we want to make the arg pointer point to the start |
6257 | of the incoming argument area. */ | |
6258 | emit_move_insn (virtual_incoming_args_rtx, | |
29c05e22 | 6259 | plus_constant (Pmode, arg_pointer_rtx, -64)); |
5e3c5739 | 6260 | |
6261 | /* Now return a pointer to the first anonymous argument. */ | |
6262 | return copy_to_reg (expand_binop (Pmode, add_optab, | |
6263 | virtual_incoming_args_rtx, | |
6264 | offset, 0, 0, OPTAB_LIB_WIDEN)); | |
6265 | } | |
6266 | ||
6dc3b0d9 | 6267 | /* Store general registers on the stack. */ |
ad851752 | 6268 | dest = gen_rtx_MEM (BLKmode, |
29c05e22 | 6269 | plus_constant (Pmode, crtl->args.internal_arg_pointer, |
ad851752 | 6270 | -16)); |
ab6ab77e | 6271 | set_mem_alias_set (dest, get_varargs_alias_set ()); |
2a631e19 | 6272 | set_mem_align (dest, BITS_PER_WORD); |
530178a9 | 6273 | move_block_from_reg (23, dest, 4); |
01251cbc | 6274 | |
76a0ced5 | 6275 | /* move_block_from_reg will emit code to store the argument registers |
6276 | individually as scalar stores. | |
6277 | ||
6278 | However, other insns may later load from the same addresses for | |
ad87de1e | 6279 | a structure load (passing a struct to a varargs routine). |
76a0ced5 | 6280 | |
6281 | The alias code assumes that such aliasing can never happen, so we | |
6282 | have to keep memory referencing insns from moving up beyond the | |
6283 | last argument register store. So we emit a blockage insn here. */ | |
6284 | emit_insn (gen_blockage ()); | |
6285 | ||
9c6d4825 | 6286 | return copy_to_reg (expand_binop (Pmode, add_optab, |
abe32cce | 6287 | crtl->args.internal_arg_pointer, |
9c6d4825 | 6288 | offset, 0, 0, OPTAB_LIB_WIDEN)); |
87ad11b0 | 6289 | } |
d6f01525 | 6290 | |
8a58ed0a | 6291 | static void |
5c1d8983 | 6292 | hppa_va_start (tree valist, rtx nextarg) |
72899a61 | 6293 | { |
6294 | nextarg = expand_builtin_saveregs (); | |
7df226a2 | 6295 | std_expand_builtin_va_start (valist, nextarg); |
72899a61 | 6296 | } |
6297 | ||
4c33eb68 | 6298 | static tree |
75a70cf9 | 6299 | hppa_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p, |
6300 | gimple_seq *post_p) | |
72899a61 | 6301 | { |
5e3c5739 | 6302 | if (TARGET_64BIT) |
6303 | { | |
4c33eb68 | 6304 | /* Args grow upward. We can use the generic routines. */ |
bef380a4 | 6305 | return std_gimplify_va_arg_expr (valist, type, pre_p, post_p); |
72899a61 | 6306 | } |
ac965869 | 6307 | else /* !TARGET_64BIT */ |
72899a61 | 6308 | { |
4c33eb68 | 6309 | tree ptr = build_pointer_type (type); |
6310 | tree valist_type; | |
6311 | tree t, u; | |
6312 | unsigned int size, ofs; | |
bef380a4 | 6313 | bool indirect; |
72899a61 | 6314 | |
bef380a4 | 6315 | indirect = pass_by_reference (NULL, TYPE_MODE (type), type, 0); |
4c33eb68 | 6316 | if (indirect) |
ac965869 | 6317 | { |
4c33eb68 | 6318 | type = ptr; |
6319 | ptr = build_pointer_type (type); | |
72899a61 | 6320 | } |
4c33eb68 | 6321 | size = int_size_in_bytes (type); |
6322 | valist_type = TREE_TYPE (valist); | |
ac965869 | 6323 | |
4c33eb68 | 6324 | /* Args grow down. Not handled by generic routines. */ |
ac965869 | 6325 | |
0de36bdb | 6326 | u = fold_convert (sizetype, size_in_bytes (type)); |
6327 | u = fold_build1 (NEGATE_EXPR, sizetype, u); | |
2cc66f2a | 6328 | t = fold_build_pointer_plus (valist, u); |
ac965869 | 6329 | |
175fd0a9 | 6330 | /* Align to 4 or 8 byte boundary depending on argument size. */ |
6331 | ||
6332 | u = build_int_cst (TREE_TYPE (t), (HOST_WIDE_INT)(size > 4 ? -8 : -4)); | |
6333 | t = build2 (BIT_AND_EXPR, TREE_TYPE (t), t, u); | |
0de36bdb | 6334 | t = fold_convert (valist_type, t); |
4c33eb68 | 6335 | |
33b1284b | 6336 | t = build2 (MODIFY_EXPR, valist_type, valist, t); |
72899a61 | 6337 | |
4c33eb68 | 6338 | ofs = (8 - size) % 4; |
6339 | if (ofs != 0) | |
2cc66f2a | 6340 | t = fold_build_pointer_plus_hwi (t, ofs); |
72899a61 | 6341 | |
4c33eb68 | 6342 | t = fold_convert (ptr, t); |
063f5fdd | 6343 | t = build_va_arg_indirect_ref (t); |
72899a61 | 6344 | |
4c33eb68 | 6345 | if (indirect) |
063f5fdd | 6346 | t = build_va_arg_indirect_ref (t); |
72899a61 | 6347 | |
4c33eb68 | 6348 | return t; |
6349 | } | |
6350 | } | |
72899a61 | 6351 | |
2b1e7cc3 | 6352 | /* True if MODE is valid for the target. By "valid", we mean able to |
6353 | be manipulated in non-trivial ways. In particular, this means all | |
6354 | the arithmetic is supported. | |
6355 | ||
6356 | Currently, TImode is not valid as the HP 64-bit runtime documentation | |
6357 | doesn't document the alignment and calling conventions for this type. | |
6358 | Thus, we return false when PRECISION is 2 * BITS_PER_WORD and | |
6359 | 2 * BITS_PER_WORD isn't equal LONG_LONG_TYPE_SIZE. */ | |
6360 | ||
6361 | static bool | |
3754d046 | 6362 | pa_scalar_mode_supported_p (machine_mode mode) |
2b1e7cc3 | 6363 | { |
6364 | int precision = GET_MODE_PRECISION (mode); | |
6365 | ||
6366 | switch (GET_MODE_CLASS (mode)) | |
6367 | { | |
6368 | case MODE_PARTIAL_INT: | |
6369 | case MODE_INT: | |
6370 | if (precision == CHAR_TYPE_SIZE) | |
6371 | return true; | |
6372 | if (precision == SHORT_TYPE_SIZE) | |
6373 | return true; | |
6374 | if (precision == INT_TYPE_SIZE) | |
6375 | return true; | |
6376 | if (precision == LONG_TYPE_SIZE) | |
6377 | return true; | |
6378 | if (precision == LONG_LONG_TYPE_SIZE) | |
6379 | return true; | |
6380 | return false; | |
6381 | ||
6382 | case MODE_FLOAT: | |
6383 | if (precision == FLOAT_TYPE_SIZE) | |
6384 | return true; | |
6385 | if (precision == DOUBLE_TYPE_SIZE) | |
6386 | return true; | |
6387 | if (precision == LONG_DOUBLE_TYPE_SIZE) | |
6388 | return true; | |
6389 | return false; | |
6390 | ||
2af936a9 | 6391 | case MODE_DECIMAL_FLOAT: |
6392 | return false; | |
6393 | ||
2b1e7cc3 | 6394 | default: |
6395 | gcc_unreachable (); | |
6396 | } | |
6397 | } | |
6398 | ||
317754f4 | 6399 | /* Return TRUE if INSN, a jump insn, has an unfilled delay slot and |
ebeae299 | 6400 | it branches into the delay slot. Otherwise, return FALSE. */ |
317754f4 | 6401 | |
6402 | static bool | |
d3ffa7b4 | 6403 | branch_to_delay_slot_p (rtx_insn *insn) |
317754f4 | 6404 | { |
89dcddd6 | 6405 | rtx_insn *jump_insn; |
ebeae299 | 6406 | |
317754f4 | 6407 | if (dbr_sequence_length ()) |
6408 | return FALSE; | |
6409 | ||
ebeae299 | 6410 | jump_insn = next_active_insn (JUMP_LABEL (insn)); |
6411 | while (insn) | |
6412 | { | |
6413 | insn = next_active_insn (insn); | |
6414 | if (jump_insn == insn) | |
6415 | return TRUE; | |
6416 | ||
6417 | /* We can't rely on the length of asms. So, we return FALSE when | |
6418 | the branch is followed by an asm. */ | |
6419 | if (!insn | |
6420 | || GET_CODE (PATTERN (insn)) == ASM_INPUT | |
6421 | || extract_asm_operands (PATTERN (insn)) != NULL_RTX | |
6422 | || get_attr_length (insn) > 0) | |
6423 | break; | |
6424 | } | |
6425 | ||
6426 | return FALSE; | |
317754f4 | 6427 | } |
6428 | ||
ebeae299 | 6429 | /* Return TRUE if INSN, a forward jump insn, needs a nop in its delay slot. |
317754f4 | 6430 | |
6431 | This occurs when INSN has an unfilled delay slot and is followed | |
ebeae299 | 6432 | by an asm. Disaster can occur if the asm is empty and the jump |
6433 | branches into the delay slot. So, we add a nop in the delay slot | |
6434 | when this occurs. */ | |
317754f4 | 6435 | |
6436 | static bool | |
d3ffa7b4 | 6437 | branch_needs_nop_p (rtx_insn *insn) |
317754f4 | 6438 | { |
89dcddd6 | 6439 | rtx_insn *jump_insn; |
317754f4 | 6440 | |
6441 | if (dbr_sequence_length ()) | |
6442 | return FALSE; | |
6443 | ||
ebeae299 | 6444 | jump_insn = next_active_insn (JUMP_LABEL (insn)); |
6445 | while (insn) | |
6446 | { | |
6447 | insn = next_active_insn (insn); | |
6448 | if (!insn || jump_insn == insn) | |
6449 | return TRUE; | |
6450 | ||
6451 | if (!(GET_CODE (PATTERN (insn)) == ASM_INPUT | |
6452 | || extract_asm_operands (PATTERN (insn)) != NULL_RTX) | |
6453 | && get_attr_length (insn) > 0) | |
6454 | break; | |
6455 | } | |
6456 | ||
6457 | return FALSE; | |
6458 | } | |
6459 | ||
6460 | /* Return TRUE if INSN, a forward jump insn, can use nullification | |
6461 | to skip the following instruction. This avoids an extra cycle due | |
6462 | to a mis-predicted branch when we fall through. */ | |
6463 | ||
6464 | static bool | |
d3ffa7b4 | 6465 | use_skip_p (rtx_insn *insn) |
ebeae299 | 6466 | { |
89dcddd6 | 6467 | rtx_insn *jump_insn = next_active_insn (JUMP_LABEL (insn)); |
ebeae299 | 6468 | |
6469 | while (insn) | |
6470 | { | |
6471 | insn = next_active_insn (insn); | |
6472 | ||
6473 | /* We can't rely on the length of asms, so we can't skip asms. */ | |
6474 | if (!insn | |
6475 | || GET_CODE (PATTERN (insn)) == ASM_INPUT | |
6476 | || extract_asm_operands (PATTERN (insn)) != NULL_RTX) | |
6477 | break; | |
6478 | if (get_attr_length (insn) == 4 | |
6479 | && jump_insn == next_active_insn (insn)) | |
6480 | return TRUE; | |
6481 | if (get_attr_length (insn) > 0) | |
6482 | break; | |
6483 | } | |
6484 | ||
6485 | return FALSE; | |
317754f4 | 6486 | } |
6487 | ||
6d36483b | 6488 | /* This routine handles all the normal conditional branch sequences we |
6489 | might need to generate. It handles compare immediate vs compare | |
6490 | register, nullification of delay slots, varying length branches, | |
0d986529 | 6491 | negated branches, and all combinations of the above. It returns the |
6d36483b | 6492 | output appropriate to emit the branch corresponding to all given |
0d986529 | 6493 | parameters. */ |
6494 | ||
611a88e1 | 6495 | const char * |
91a55c11 | 6496 | pa_output_cbranch (rtx *operands, int negated, rtx_insn *insn) |
29a4502c | 6497 | { |
0d986529 | 6498 | static char buf[100]; |
ebeae299 | 6499 | bool useskip; |
f26036bb | 6500 | int nullify = INSN_ANNULLED_BRANCH_P (insn); |
6501 | int length = get_attr_length (insn); | |
6502 | int xdelay; | |
0d986529 | 6503 | |
a361b456 | 6504 | /* A conditional branch to the following instruction (e.g. the delay slot) |
ece0fa59 | 6505 | is asking for a disaster. This can happen when not optimizing and |
6506 | when jump optimization fails. | |
29a4502c | 6507 | |
38efba6c | 6508 | While it is usually safe to emit nothing, this can fail if the |
6509 | preceding instruction is a nullified branch with an empty delay | |
6510 | slot and the same branch target as this branch. We could check | |
6511 | for this but jump optimization should eliminate nop jumps. It | |
6512 | is always safe to emit a nop. */ | |
317754f4 | 6513 | if (branch_to_delay_slot_p (insn)) |
ece0fa59 | 6514 | return "nop"; |
6d36483b | 6515 | |
22699a7e | 6516 | /* The doubleword form of the cmpib instruction doesn't have the LEU |
6517 | and GTU conditions while the cmpb instruction does. Since we accept | |
6518 | zero for cmpb, we must ensure that we use cmpb for the comparison. */ | |
6519 | if (GET_MODE (operands[1]) == DImode && operands[2] == const0_rtx) | |
6520 | operands[2] = gen_rtx_REG (DImode, 0); | |
d65b8df8 | 6521 | if (GET_MODE (operands[2]) == DImode && operands[1] == const0_rtx) |
6522 | operands[1] = gen_rtx_REG (DImode, 0); | |
22699a7e | 6523 | |
5fbd5940 | 6524 | /* If this is a long branch with its delay slot unfilled, set `nullify' |
6525 | as it can nullify the delay slot and save a nop. */ | |
5a1231ef | 6526 | if (length == 8 && dbr_sequence_length () == 0) |
5fbd5940 | 6527 | nullify = 1; |
6528 | ||
6529 | /* If this is a short forward conditional branch which did not get | |
6530 | its delay slot filled, the delay slot can still be nullified. */ | |
5a1231ef | 6531 | if (! nullify && length == 4 && dbr_sequence_length () == 0) |
5fbd5940 | 6532 | nullify = forward_branch_p (insn); |
6533 | ||
6d36483b | 6534 | /* A forward branch over a single nullified insn can be done with a |
0d986529 | 6535 | comclr instruction. This avoids a single cycle penalty due to |
6536 | mis-predicted branch if we fall through (branch not taken). */ | |
ebeae299 | 6537 | useskip = (length == 4 && nullify) ? use_skip_p (insn) : FALSE; |
0d986529 | 6538 | |
6539 | switch (length) | |
6540 | { | |
5fbd5940 | 6541 | /* All short conditional branches except backwards with an unfilled |
6542 | delay slot. */ | |
5a1231ef | 6543 | case 4: |
0d986529 | 6544 | if (useskip) |
e4065f95 | 6545 | strcpy (buf, "{com%I2clr,|cmp%I2clr,}"); |
0d986529 | 6546 | else |
e4065f95 | 6547 | strcpy (buf, "{com%I2b,|cmp%I2b,}"); |
5e3c5739 | 6548 | if (GET_MODE (operands[1]) == DImode) |
6549 | strcat (buf, "*"); | |
0d986529 | 6550 | if (negated) |
6551 | strcat (buf, "%B3"); | |
6552 | else | |
6553 | strcat (buf, "%S3"); | |
6554 | if (useskip) | |
5a811d43 | 6555 | strcat (buf, " %2,%r1,%%r0"); |
0d986529 | 6556 | else if (nullify) |
317754f4 | 6557 | { |
6558 | if (branch_needs_nop_p (insn)) | |
6559 | strcat (buf, ",n %2,%r1,%0%#"); | |
6560 | else | |
6561 | strcat (buf, ",n %2,%r1,%0"); | |
6562 | } | |
6d36483b | 6563 | else |
9e49be0e | 6564 | strcat (buf, " %2,%r1,%0"); |
0d986529 | 6565 | break; |
6566 | ||
87fcb603 | 6567 | /* All long conditionals. Note a short backward branch with an |
5fbd5940 | 6568 | unfilled delay slot is treated just like a long backward branch |
6569 | with an unfilled delay slot. */ | |
5a1231ef | 6570 | case 8: |
5fbd5940 | 6571 | /* Handle weird backwards branch with a filled delay slot |
f26036bb | 6572 | which is nullified. */ |
5fbd5940 | 6573 | if (dbr_sequence_length () != 0 |
6574 | && ! forward_branch_p (insn) | |
6575 | && nullify) | |
6576 | { | |
e4065f95 | 6577 | strcpy (buf, "{com%I2b,|cmp%I2b,}"); |
5e3c5739 | 6578 | if (GET_MODE (operands[1]) == DImode) |
6579 | strcat (buf, "*"); | |
5fbd5940 | 6580 | if (negated) |
6581 | strcat (buf, "%S3"); | |
6582 | else | |
6583 | strcat (buf, "%B3"); | |
5a811d43 | 6584 | strcat (buf, ",n %2,%r1,.+12\n\tb %0"); |
5fbd5940 | 6585 | } |
43f0c1f2 | 6586 | /* Handle short backwards branch with an unfilled delay slot. |
6587 | Using a comb;nop rather than comiclr;bl saves 1 cycle for both | |
6588 | taken and untaken branches. */ | |
6589 | else if (dbr_sequence_length () == 0 | |
6590 | && ! forward_branch_p (insn) | |
47fc0706 | 6591 | && INSN_ADDRESSES_SET_P () |
6592 | && VAL_14_BITS_P (INSN_ADDRESSES (INSN_UID (JUMP_LABEL (insn))) | |
6593 | - INSN_ADDRESSES (INSN_UID (insn)) - 8)) | |
43f0c1f2 | 6594 | { |
e4065f95 | 6595 | strcpy (buf, "{com%I2b,|cmp%I2b,}"); |
5e3c5739 | 6596 | if (GET_MODE (operands[1]) == DImode) |
6597 | strcat (buf, "*"); | |
43f0c1f2 | 6598 | if (negated) |
9e49be0e | 6599 | strcat (buf, "%B3 %2,%r1,%0%#"); |
43f0c1f2 | 6600 | else |
9e49be0e | 6601 | strcat (buf, "%S3 %2,%r1,%0%#"); |
43f0c1f2 | 6602 | } |
0d986529 | 6603 | else |
5fbd5940 | 6604 | { |
e4065f95 | 6605 | strcpy (buf, "{com%I2clr,|cmp%I2clr,}"); |
5e3c5739 | 6606 | if (GET_MODE (operands[1]) == DImode) |
6607 | strcat (buf, "*"); | |
5fbd5940 | 6608 | if (negated) |
6609 | strcat (buf, "%S3"); | |
6610 | else | |
6611 | strcat (buf, "%B3"); | |
6612 | if (nullify) | |
5a811d43 | 6613 | strcat (buf, " %2,%r1,%%r0\n\tb,n %0"); |
5fbd5940 | 6614 | else |
5a811d43 | 6615 | strcat (buf, " %2,%r1,%%r0\n\tb %0"); |
5fbd5940 | 6616 | } |
0d986529 | 6617 | break; |
6618 | ||
f26036bb | 6619 | default: |
e9ec370e | 6620 | /* The reversed conditional branch must branch over one additional |
f26036bb | 6621 | instruction if the delay slot is filled and needs to be extracted |
e202682d | 6622 | by pa_output_lbranch. If the delay slot is empty or this is a |
f26036bb | 6623 | nullified forward branch, the instruction after the reversed |
6624 | condition branch must be nullified. */ | |
6625 | if (dbr_sequence_length () == 0 | |
6626 | || (nullify && forward_branch_p (insn))) | |
6627 | { | |
6628 | nullify = 1; | |
6629 | xdelay = 0; | |
6630 | operands[4] = GEN_INT (length); | |
6631 | } | |
6632 | else | |
6633 | { | |
6634 | xdelay = 1; | |
6635 | operands[4] = GEN_INT (length + 4); | |
6636 | } | |
c8a0e52b | 6637 | |
6638 | /* Create a reversed conditional branch which branches around | |
6639 | the following insns. */ | |
e9ec370e | 6640 | if (GET_MODE (operands[1]) != DImode) |
6641 | { | |
6642 | if (nullify) | |
6643 | { | |
6644 | if (negated) | |
6645 | strcpy (buf, | |
6646 | "{com%I2b,%S3,n %2,%r1,.+%4|cmp%I2b,%S3,n %2,%r1,.+%4}"); | |
6647 | else | |
6648 | strcpy (buf, | |
6649 | "{com%I2b,%B3,n %2,%r1,.+%4|cmp%I2b,%B3,n %2,%r1,.+%4}"); | |
6650 | } | |
6651 | else | |
6652 | { | |
6653 | if (negated) | |
6654 | strcpy (buf, | |
6655 | "{com%I2b,%S3 %2,%r1,.+%4|cmp%I2b,%S3 %2,%r1,.+%4}"); | |
6656 | else | |
6657 | strcpy (buf, | |
6658 | "{com%I2b,%B3 %2,%r1,.+%4|cmp%I2b,%B3 %2,%r1,.+%4}"); | |
6659 | } | |
6660 | } | |
c8a0e52b | 6661 | else |
5e3c5739 | 6662 | { |
e9ec370e | 6663 | if (nullify) |
6664 | { | |
6665 | if (negated) | |
6666 | strcpy (buf, | |
6667 | "{com%I2b,*%S3,n %2,%r1,.+%4|cmp%I2b,*%S3,n %2,%r1,.+%4}"); | |
6668 | else | |
6669 | strcpy (buf, | |
6670 | "{com%I2b,*%B3,n %2,%r1,.+%4|cmp%I2b,*%B3,n %2,%r1,.+%4}"); | |
6671 | } | |
5e3c5739 | 6672 | else |
e9ec370e | 6673 | { |
6674 | if (negated) | |
6675 | strcpy (buf, | |
6676 | "{com%I2b,*%S3 %2,%r1,.+%4|cmp%I2b,*%S3 %2,%r1,.+%4}"); | |
6677 | else | |
6678 | strcpy (buf, | |
6679 | "{com%I2b,*%B3 %2,%r1,.+%4|cmp%I2b,*%B3 %2,%r1,.+%4}"); | |
6680 | } | |
5e3c5739 | 6681 | } |
c8a0e52b | 6682 | |
f26036bb | 6683 | output_asm_insn (buf, operands); |
e202682d | 6684 | return pa_output_lbranch (operands[0], insn, xdelay); |
e9ec370e | 6685 | } |
6686 | return buf; | |
6687 | } | |
c8a0e52b | 6688 | |
f26036bb | 6689 | /* This routine handles output of long unconditional branches that |
6690 | exceed the maximum range of a simple branch instruction. Since | |
6691 | we don't have a register available for the branch, we save register | |
6692 | %r1 in the frame marker, load the branch destination DEST into %r1, | |
6693 | execute the branch, and restore %r1 in the delay slot of the branch. | |
6694 | ||
6695 | Since long branches may have an insn in the delay slot and the | |
6696 | delay slot is used to restore %r1, we in general need to extract | |
6697 | this insn and execute it before the branch. However, to facilitate | |
6698 | use of this function by conditional branches, we also provide an | |
6699 | option to not extract the delay insn so that it will be emitted | |
6700 | after the long branch. So, if there is an insn in the delay slot, | |
6701 | it is extracted if XDELAY is nonzero. | |
6702 | ||
6703 | The lengths of the various long-branch sequences are 20, 16 and 24 | |
6704 | bytes for the portable runtime, non-PIC and PIC cases, respectively. */ | |
c8a0e52b | 6705 | |
e9ec370e | 6706 | const char * |
91a55c11 | 6707 | pa_output_lbranch (rtx dest, rtx_insn *insn, int xdelay) |
e9ec370e | 6708 | { |
6709 | rtx xoperands[2]; | |
6710 | ||
6711 | xoperands[0] = dest; | |
c8a0e52b | 6712 | |
e9ec370e | 6713 | /* First, free up the delay slot. */ |
f26036bb | 6714 | if (xdelay && dbr_sequence_length () != 0) |
e9ec370e | 6715 | { |
6716 | /* We can't handle a jump in the delay slot. */ | |
aa90bb35 | 6717 | gcc_assert (! JUMP_P (NEXT_INSN (insn))); |
c8a0e52b | 6718 | |
e9ec370e | 6719 | final_scan_insn (NEXT_INSN (insn), asm_out_file, |
4bf029b0 | 6720 | optimize, 0, NULL); |
c8a0e52b | 6721 | |
e9ec370e | 6722 | /* Now delete the delay insn. */ |
ad4583d9 | 6723 | SET_INSN_DELETED (NEXT_INSN (insn)); |
e9ec370e | 6724 | } |
c8a0e52b | 6725 | |
e9ec370e | 6726 | /* Output an insn to save %r1. The runtime documentation doesn't |
6727 | specify whether the "Clean Up" slot in the callers frame can | |
6728 | be clobbered by the callee. It isn't copied by HP's builtin | |
6729 | alloca, so this suggests that it can be clobbered if necessary. | |
6730 | The "Static Link" location is copied by HP builtin alloca, so | |
6731 | we avoid using it. Using the cleanup slot might be a problem | |
6732 | if we have to interoperate with languages that pass cleanup | |
6733 | information. However, it should be possible to handle these | |
6734 | situations with GCC's asm feature. | |
6735 | ||
6736 | The "Current RP" slot is reserved for the called procedure, so | |
6737 | we try to use it when we don't have a frame of our own. It's | |
6738 | rather unlikely that we won't have a frame when we need to emit | |
6739 | a very long branch. | |
6740 | ||
6741 | Really the way to go long term is a register scavenger; goto | |
6742 | the target of the jump and find a register which we can use | |
6743 | as a scratch to hold the value in %r1. Then, we wouldn't have | |
6744 | to free up the delay slot or clobber a slot that may be needed | |
6745 | for other purposes. */ | |
6746 | if (TARGET_64BIT) | |
6747 | { | |
3072d30e | 6748 | if (actual_fsize == 0 && !df_regs_ever_live_p (2)) |
e9ec370e | 6749 | /* Use the return pointer slot in the frame marker. */ |
6750 | output_asm_insn ("std %%r1,-16(%%r30)", xoperands); | |
6751 | else | |
6752 | /* Use the slot at -40 in the frame marker since HP builtin | |
6753 | alloca doesn't copy it. */ | |
6754 | output_asm_insn ("std %%r1,-40(%%r30)", xoperands); | |
6755 | } | |
6756 | else | |
6757 | { | |
3072d30e | 6758 | if (actual_fsize == 0 && !df_regs_ever_live_p (2)) |
e9ec370e | 6759 | /* Use the return pointer slot in the frame marker. */ |
6760 | output_asm_insn ("stw %%r1,-20(%%r30)", xoperands); | |
6761 | else | |
6762 | /* Use the "Clean Up" slot in the frame marker. In GCC, | |
6763 | the only other use of this location is for copying a | |
6764 | floating point double argument from a floating-point | |
6765 | register to two general registers. The copy is done | |
19ee40ed | 6766 | as an "atomic" operation when outputting a call, so it |
e9ec370e | 6767 | won't interfere with our using the location here. */ |
6768 | output_asm_insn ("stw %%r1,-12(%%r30)", xoperands); | |
6769 | } | |
b70ea764 | 6770 | |
2247cc5f | 6771 | if (TARGET_PORTABLE_RUNTIME) |
6772 | { | |
6773 | output_asm_insn ("ldil L'%0,%%r1", xoperands); | |
6774 | output_asm_insn ("ldo R'%0(%%r1),%%r1", xoperands); | |
6775 | output_asm_insn ("bv %%r0(%%r1)", xoperands); | |
6776 | } | |
6777 | else if (flag_pic) | |
e9ec370e | 6778 | { |
6779 | output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands); | |
6780 | if (TARGET_SOM || !TARGET_GAS) | |
6781 | { | |
6782 | xoperands[1] = gen_label_rtx (); | |
6783 | output_asm_insn ("addil L'%l0-%l1,%%r1", xoperands); | |
c5559ed4 | 6784 | targetm.asm_out.internal_label (asm_out_file, "L", |
6785 | CODE_LABEL_NUMBER (xoperands[1])); | |
e9ec370e | 6786 | output_asm_insn ("ldo R'%l0-%l1(%%r1),%%r1", xoperands); |
c8a0e52b | 6787 | } |
e9ec370e | 6788 | else |
6789 | { | |
6790 | output_asm_insn ("addil L'%l0-$PIC_pcrel$0+4,%%r1", xoperands); | |
6791 | output_asm_insn ("ldo R'%l0-$PIC_pcrel$0+8(%%r1),%%r1", xoperands); | |
6792 | } | |
6793 | output_asm_insn ("bv %%r0(%%r1)", xoperands); | |
6794 | } | |
6795 | else | |
6796 | /* Now output a very long branch to the original target. */ | |
6797 | output_asm_insn ("ldil L'%l0,%%r1\n\tbe R'%l0(%%sr4,%%r1)", xoperands); | |
c8a0e52b | 6798 | |
e9ec370e | 6799 | /* Now restore the value of %r1 in the delay slot. */ |
6800 | if (TARGET_64BIT) | |
6801 | { | |
3072d30e | 6802 | if (actual_fsize == 0 && !df_regs_ever_live_p (2)) |
e9ec370e | 6803 | return "ldd -16(%%r30),%%r1"; |
6804 | else | |
6805 | return "ldd -40(%%r30),%%r1"; | |
6806 | } | |
6807 | else | |
6808 | { | |
3072d30e | 6809 | if (actual_fsize == 0 && !df_regs_ever_live_p (2)) |
e9ec370e | 6810 | return "ldw -20(%%r30),%%r1"; |
6811 | else | |
6812 | return "ldw -12(%%r30),%%r1"; | |
5fbd5940 | 6813 | } |
0d986529 | 6814 | } |
6815 | ||
6d36483b | 6816 | /* This routine handles all the branch-on-bit conditional branch sequences we |
0d986529 | 6817 | might need to generate. It handles nullification of delay slots, |
6818 | varying length branches, negated branches and all combinations of the | |
6819 | above. it returns the appropriate output template to emit the branch. */ | |
6820 | ||
611a88e1 | 6821 | const char * |
91a55c11 | 6822 | pa_output_bb (rtx *operands ATTRIBUTE_UNUSED, int negated, rtx_insn *insn, int which) |
29a4502c | 6823 | { |
0d986529 | 6824 | static char buf[100]; |
ebeae299 | 6825 | bool useskip; |
f26036bb | 6826 | int nullify = INSN_ANNULLED_BRANCH_P (insn); |
6827 | int length = get_attr_length (insn); | |
6828 | int xdelay; | |
0d986529 | 6829 | |
a361b456 | 6830 | /* A conditional branch to the following instruction (e.g. the delay slot) is |
29a4502c | 6831 | asking for a disaster. I do not think this can happen as this pattern |
6d36483b | 6832 | is only used when optimizing; jump optimization should eliminate the |
29a4502c | 6833 | jump. But be prepared just in case. */ |
6d36483b | 6834 | |
317754f4 | 6835 | if (branch_to_delay_slot_p (insn)) |
ece0fa59 | 6836 | return "nop"; |
6d36483b | 6837 | |
5fbd5940 | 6838 | /* If this is a long branch with its delay slot unfilled, set `nullify' |
6839 | as it can nullify the delay slot and save a nop. */ | |
5a1231ef | 6840 | if (length == 8 && dbr_sequence_length () == 0) |
5fbd5940 | 6841 | nullify = 1; |
6842 | ||
6843 | /* If this is a short forward conditional branch which did not get | |
6844 | its delay slot filled, the delay slot can still be nullified. */ | |
5a1231ef | 6845 | if (! nullify && length == 4 && dbr_sequence_length () == 0) |
5fbd5940 | 6846 | nullify = forward_branch_p (insn); |
6847 | ||
6d36483b | 6848 | /* A forward branch over a single nullified insn can be done with a |
0d986529 | 6849 | extrs instruction. This avoids a single cycle penalty due to |
6850 | mis-predicted branch if we fall through (branch not taken). */ | |
ebeae299 | 6851 | useskip = (length == 4 && nullify) ? use_skip_p (insn) : FALSE; |
0d986529 | 6852 | |
6853 | switch (length) | |
6854 | { | |
6855 | ||
5fbd5940 | 6856 | /* All short conditional branches except backwards with an unfilled |
6857 | delay slot. */ | |
5a1231ef | 6858 | case 4: |
0d986529 | 6859 | if (useskip) |
e4065f95 | 6860 | strcpy (buf, "{extrs,|extrw,s,}"); |
6d36483b | 6861 | else |
0d986529 | 6862 | strcpy (buf, "bb,"); |
5e3c5739 | 6863 | if (useskip && GET_MODE (operands[0]) == DImode) |
6864 | strcpy (buf, "extrd,s,*"); | |
6865 | else if (GET_MODE (operands[0]) == DImode) | |
6866 | strcpy (buf, "bb,*"); | |
0d986529 | 6867 | if ((which == 0 && negated) |
6868 | || (which == 1 && ! negated)) | |
6869 | strcat (buf, ">="); | |
6870 | else | |
6871 | strcat (buf, "<"); | |
6872 | if (useskip) | |
5a811d43 | 6873 | strcat (buf, " %0,%1,1,%%r0"); |
0d986529 | 6874 | else if (nullify && negated) |
317754f4 | 6875 | { |
6876 | if (branch_needs_nop_p (insn)) | |
6877 | strcat (buf, ",n %0,%1,%3%#"); | |
6878 | else | |
6879 | strcat (buf, ",n %0,%1,%3"); | |
6880 | } | |
0d986529 | 6881 | else if (nullify && ! negated) |
317754f4 | 6882 | { |
6883 | if (branch_needs_nop_p (insn)) | |
6884 | strcat (buf, ",n %0,%1,%2%#"); | |
6885 | else | |
6886 | strcat (buf, ",n %0,%1,%2"); | |
6887 | } | |
0d986529 | 6888 | else if (! nullify && negated) |
317754f4 | 6889 | strcat (buf, " %0,%1,%3"); |
0d986529 | 6890 | else if (! nullify && ! negated) |
5fbd5940 | 6891 | strcat (buf, " %0,%1,%2"); |
0d986529 | 6892 | break; |
6893 | ||
87fcb603 | 6894 | /* All long conditionals. Note a short backward branch with an |
5fbd5940 | 6895 | unfilled delay slot is treated just like a long backward branch |
6896 | with an unfilled delay slot. */ | |
5a1231ef | 6897 | case 8: |
5fbd5940 | 6898 | /* Handle weird backwards branch with a filled delay slot |
f26036bb | 6899 | which is nullified. */ |
5fbd5940 | 6900 | if (dbr_sequence_length () != 0 |
6901 | && ! forward_branch_p (insn) | |
6902 | && nullify) | |
6903 | { | |
6904 | strcpy (buf, "bb,"); | |
5e3c5739 | 6905 | if (GET_MODE (operands[0]) == DImode) |
6906 | strcat (buf, "*"); | |
5fbd5940 | 6907 | if ((which == 0 && negated) |
6908 | || (which == 1 && ! negated)) | |
6909 | strcat (buf, "<"); | |
6910 | else | |
6911 | strcat (buf, ">="); | |
6912 | if (negated) | |
5a811d43 | 6913 | strcat (buf, ",n %0,%1,.+12\n\tb %3"); |
5fbd5940 | 6914 | else |
5a811d43 | 6915 | strcat (buf, ",n %0,%1,.+12\n\tb %2"); |
5fbd5940 | 6916 | } |
43f0c1f2 | 6917 | /* Handle short backwards branch with an unfilled delay slot. |
6918 | Using a bb;nop rather than extrs;bl saves 1 cycle for both | |
6919 | taken and untaken branches. */ | |
6920 | else if (dbr_sequence_length () == 0 | |
6921 | && ! forward_branch_p (insn) | |
47fc0706 | 6922 | && INSN_ADDRESSES_SET_P () |
6923 | && VAL_14_BITS_P (INSN_ADDRESSES (INSN_UID (JUMP_LABEL (insn))) | |
6924 | - INSN_ADDRESSES (INSN_UID (insn)) - 8)) | |
43f0c1f2 | 6925 | { |
6926 | strcpy (buf, "bb,"); | |
5e3c5739 | 6927 | if (GET_MODE (operands[0]) == DImode) |
6928 | strcat (buf, "*"); | |
43f0c1f2 | 6929 | if ((which == 0 && negated) |
6930 | || (which == 1 && ! negated)) | |
6931 | strcat (buf, ">="); | |
6932 | else | |
6933 | strcat (buf, "<"); | |
6934 | if (negated) | |
6935 | strcat (buf, " %0,%1,%3%#"); | |
6936 | else | |
6937 | strcat (buf, " %0,%1,%2%#"); | |
6938 | } | |
0d986529 | 6939 | else |
5fbd5940 | 6940 | { |
5e3c5739 | 6941 | if (GET_MODE (operands[0]) == DImode) |
6942 | strcpy (buf, "extrd,s,*"); | |
f26036bb | 6943 | else |
6944 | strcpy (buf, "{extrs,|extrw,s,}"); | |
5fbd5940 | 6945 | if ((which == 0 && negated) |
6946 | || (which == 1 && ! negated)) | |
6947 | strcat (buf, "<"); | |
6948 | else | |
6949 | strcat (buf, ">="); | |
6950 | if (nullify && negated) | |
c6ae275c | 6951 | strcat (buf, " %0,%1,1,%%r0\n\tb,n %3"); |
5fbd5940 | 6952 | else if (nullify && ! negated) |
c6ae275c | 6953 | strcat (buf, " %0,%1,1,%%r0\n\tb,n %2"); |
5fbd5940 | 6954 | else if (negated) |
5a811d43 | 6955 | strcat (buf, " %0,%1,1,%%r0\n\tb %3"); |
6d36483b | 6956 | else |
5a811d43 | 6957 | strcat (buf, " %0,%1,1,%%r0\n\tb %2"); |
5fbd5940 | 6958 | } |
0d986529 | 6959 | break; |
6960 | ||
6961 | default: | |
f26036bb | 6962 | /* The reversed conditional branch must branch over one additional |
6963 | instruction if the delay slot is filled and needs to be extracted | |
e202682d | 6964 | by pa_output_lbranch. If the delay slot is empty or this is a |
f26036bb | 6965 | nullified forward branch, the instruction after the reversed |
6966 | condition branch must be nullified. */ | |
6967 | if (dbr_sequence_length () == 0 | |
6968 | || (nullify && forward_branch_p (insn))) | |
6969 | { | |
6970 | nullify = 1; | |
6971 | xdelay = 0; | |
d9e3874e | 6972 | operands[4] = GEN_INT (length); |
f26036bb | 6973 | } |
6974 | else | |
6975 | { | |
6976 | xdelay = 1; | |
d9e3874e | 6977 | operands[4] = GEN_INT (length + 4); |
f26036bb | 6978 | } |
6979 | ||
6980 | if (GET_MODE (operands[0]) == DImode) | |
d9e3874e | 6981 | strcpy (buf, "bb,*"); |
f26036bb | 6982 | else |
d9e3874e | 6983 | strcpy (buf, "bb,"); |
f26036bb | 6984 | if ((which == 0 && negated) |
6985 | || (which == 1 && !negated)) | |
d9e3874e | 6986 | strcat (buf, "<"); |
f26036bb | 6987 | else |
d9e3874e | 6988 | strcat (buf, ">="); |
f26036bb | 6989 | if (nullify) |
d9e3874e | 6990 | strcat (buf, ",n %0,%1,.+%4"); |
f26036bb | 6991 | else |
d9e3874e | 6992 | strcat (buf, " %0,%1,.+%4"); |
f26036bb | 6993 | output_asm_insn (buf, operands); |
e202682d | 6994 | return pa_output_lbranch (negated ? operands[3] : operands[2], |
6995 | insn, xdelay); | |
5fbd5940 | 6996 | } |
0d986529 | 6997 | return buf; |
6998 | } | |
6999 | ||
c7a4e712 | 7000 | /* This routine handles all the branch-on-variable-bit conditional branch |
7001 | sequences we might need to generate. It handles nullification of delay | |
7002 | slots, varying length branches, negated branches and all combinations | |
7003 | of the above. it returns the appropriate output template to emit the | |
7004 | branch. */ | |
7005 | ||
611a88e1 | 7006 | const char * |
91a55c11 | 7007 | pa_output_bvb (rtx *operands ATTRIBUTE_UNUSED, int negated, rtx_insn *insn, |
e202682d | 7008 | int which) |
c7a4e712 | 7009 | { |
7010 | static char buf[100]; | |
ebeae299 | 7011 | bool useskip; |
f26036bb | 7012 | int nullify = INSN_ANNULLED_BRANCH_P (insn); |
7013 | int length = get_attr_length (insn); | |
7014 | int xdelay; | |
c7a4e712 | 7015 | |
a361b456 | 7016 | /* A conditional branch to the following instruction (e.g. the delay slot) is |
c7a4e712 | 7017 | asking for a disaster. I do not think this can happen as this pattern |
7018 | is only used when optimizing; jump optimization should eliminate the | |
7019 | jump. But be prepared just in case. */ | |
7020 | ||
317754f4 | 7021 | if (branch_to_delay_slot_p (insn)) |
ece0fa59 | 7022 | return "nop"; |
c7a4e712 | 7023 | |
7024 | /* If this is a long branch with its delay slot unfilled, set `nullify' | |
7025 | as it can nullify the delay slot and save a nop. */ | |
7026 | if (length == 8 && dbr_sequence_length () == 0) | |
7027 | nullify = 1; | |
7028 | ||
7029 | /* If this is a short forward conditional branch which did not get | |
7030 | its delay slot filled, the delay slot can still be nullified. */ | |
7031 | if (! nullify && length == 4 && dbr_sequence_length () == 0) | |
7032 | nullify = forward_branch_p (insn); | |
7033 | ||
7034 | /* A forward branch over a single nullified insn can be done with a | |
7035 | extrs instruction. This avoids a single cycle penalty due to | |
7036 | mis-predicted branch if we fall through (branch not taken). */ | |
ebeae299 | 7037 | useskip = (length == 4 && nullify) ? use_skip_p (insn) : FALSE; |
c7a4e712 | 7038 | |
7039 | switch (length) | |
7040 | { | |
7041 | ||
7042 | /* All short conditional branches except backwards with an unfilled | |
7043 | delay slot. */ | |
7044 | case 4: | |
7045 | if (useskip) | |
e4065f95 | 7046 | strcpy (buf, "{vextrs,|extrw,s,}"); |
c7a4e712 | 7047 | else |
e4065f95 | 7048 | strcpy (buf, "{bvb,|bb,}"); |
5e3c5739 | 7049 | if (useskip && GET_MODE (operands[0]) == DImode) |
e75269fd | 7050 | strcpy (buf, "extrd,s,*"); |
5e3c5739 | 7051 | else if (GET_MODE (operands[0]) == DImode) |
7052 | strcpy (buf, "bb,*"); | |
c7a4e712 | 7053 | if ((which == 0 && negated) |
7054 | || (which == 1 && ! negated)) | |
7055 | strcat (buf, ">="); | |
7056 | else | |
7057 | strcat (buf, "<"); | |
7058 | if (useskip) | |
e4065f95 | 7059 | strcat (buf, "{ %0,1,%%r0| %0,%%sar,1,%%r0}"); |
c7a4e712 | 7060 | else if (nullify && negated) |
317754f4 | 7061 | { |
7062 | if (branch_needs_nop_p (insn)) | |
7063 | strcat (buf, "{,n %0,%3%#|,n %0,%%sar,%3%#}"); | |
7064 | else | |
7065 | strcat (buf, "{,n %0,%3|,n %0,%%sar,%3}"); | |
7066 | } | |
c7a4e712 | 7067 | else if (nullify && ! negated) |
317754f4 | 7068 | { |
7069 | if (branch_needs_nop_p (insn)) | |
7070 | strcat (buf, "{,n %0,%2%#|,n %0,%%sar,%2%#}"); | |
7071 | else | |
7072 | strcat (buf, "{,n %0,%2|,n %0,%%sar,%2}"); | |
7073 | } | |
c7a4e712 | 7074 | else if (! nullify && negated) |
317754f4 | 7075 | strcat (buf, "{ %0,%3| %0,%%sar,%3}"); |
c7a4e712 | 7076 | else if (! nullify && ! negated) |
e4065f95 | 7077 | strcat (buf, "{ %0,%2| %0,%%sar,%2}"); |
c7a4e712 | 7078 | break; |
7079 | ||
87fcb603 | 7080 | /* All long conditionals. Note a short backward branch with an |
c7a4e712 | 7081 | unfilled delay slot is treated just like a long backward branch |
7082 | with an unfilled delay slot. */ | |
7083 | case 8: | |
7084 | /* Handle weird backwards branch with a filled delay slot | |
f26036bb | 7085 | which is nullified. */ |
c7a4e712 | 7086 | if (dbr_sequence_length () != 0 |
7087 | && ! forward_branch_p (insn) | |
7088 | && nullify) | |
7089 | { | |
e4065f95 | 7090 | strcpy (buf, "{bvb,|bb,}"); |
5e3c5739 | 7091 | if (GET_MODE (operands[0]) == DImode) |
7092 | strcat (buf, "*"); | |
c7a4e712 | 7093 | if ((which == 0 && negated) |
7094 | || (which == 1 && ! negated)) | |
7095 | strcat (buf, "<"); | |
7096 | else | |
7097 | strcat (buf, ">="); | |
7098 | if (negated) | |
e4065f95 | 7099 | strcat (buf, "{,n %0,.+12\n\tb %3|,n %0,%%sar,.+12\n\tb %3}"); |
c7a4e712 | 7100 | else |
e4065f95 | 7101 | strcat (buf, "{,n %0,.+12\n\tb %2|,n %0,%%sar,.+12\n\tb %2}"); |
c7a4e712 | 7102 | } |
7103 | /* Handle short backwards branch with an unfilled delay slot. | |
7104 | Using a bb;nop rather than extrs;bl saves 1 cycle for both | |
7105 | taken and untaken branches. */ | |
7106 | else if (dbr_sequence_length () == 0 | |
7107 | && ! forward_branch_p (insn) | |
47fc0706 | 7108 | && INSN_ADDRESSES_SET_P () |
7109 | && VAL_14_BITS_P (INSN_ADDRESSES (INSN_UID (JUMP_LABEL (insn))) | |
7110 | - INSN_ADDRESSES (INSN_UID (insn)) - 8)) | |
c7a4e712 | 7111 | { |
e4065f95 | 7112 | strcpy (buf, "{bvb,|bb,}"); |
5e3c5739 | 7113 | if (GET_MODE (operands[0]) == DImode) |
7114 | strcat (buf, "*"); | |
c7a4e712 | 7115 | if ((which == 0 && negated) |
7116 | || (which == 1 && ! negated)) | |
7117 | strcat (buf, ">="); | |
7118 | else | |
7119 | strcat (buf, "<"); | |
7120 | if (negated) | |
e4065f95 | 7121 | strcat (buf, "{ %0,%3%#| %0,%%sar,%3%#}"); |
c7a4e712 | 7122 | else |
e4065f95 | 7123 | strcat (buf, "{ %0,%2%#| %0,%%sar,%2%#}"); |
c7a4e712 | 7124 | } |
7125 | else | |
7126 | { | |
e4065f95 | 7127 | strcpy (buf, "{vextrs,|extrw,s,}"); |
5e3c5739 | 7128 | if (GET_MODE (operands[0]) == DImode) |
7129 | strcpy (buf, "extrd,s,*"); | |
c7a4e712 | 7130 | if ((which == 0 && negated) |
7131 | || (which == 1 && ! negated)) | |
7132 | strcat (buf, "<"); | |
7133 | else | |
7134 | strcat (buf, ">="); | |
7135 | if (nullify && negated) | |
e4065f95 | 7136 | strcat (buf, "{ %0,1,%%r0\n\tb,n %3| %0,%%sar,1,%%r0\n\tb,n %3}"); |
c7a4e712 | 7137 | else if (nullify && ! negated) |
e4065f95 | 7138 | strcat (buf, "{ %0,1,%%r0\n\tb,n %2| %0,%%sar,1,%%r0\n\tb,n %2}"); |
c7a4e712 | 7139 | else if (negated) |
e4065f95 | 7140 | strcat (buf, "{ %0,1,%%r0\n\tb %3| %0,%%sar,1,%%r0\n\tb %3}"); |
c7a4e712 | 7141 | else |
e4065f95 | 7142 | strcat (buf, "{ %0,1,%%r0\n\tb %2| %0,%%sar,1,%%r0\n\tb %2}"); |
c7a4e712 | 7143 | } |
7144 | break; | |
7145 | ||
7146 | default: | |
f26036bb | 7147 | /* The reversed conditional branch must branch over one additional |
7148 | instruction if the delay slot is filled and needs to be extracted | |
e202682d | 7149 | by pa_output_lbranch. If the delay slot is empty or this is a |
f26036bb | 7150 | nullified forward branch, the instruction after the reversed |
7151 | condition branch must be nullified. */ | |
7152 | if (dbr_sequence_length () == 0 | |
7153 | || (nullify && forward_branch_p (insn))) | |
7154 | { | |
7155 | nullify = 1; | |
7156 | xdelay = 0; | |
d9e3874e | 7157 | operands[4] = GEN_INT (length); |
f26036bb | 7158 | } |
7159 | else | |
7160 | { | |
7161 | xdelay = 1; | |
d9e3874e | 7162 | operands[4] = GEN_INT (length + 4); |
f26036bb | 7163 | } |
7164 | ||
7165 | if (GET_MODE (operands[0]) == DImode) | |
d9e3874e | 7166 | strcpy (buf, "bb,*"); |
f26036bb | 7167 | else |
d9e3874e | 7168 | strcpy (buf, "{bvb,|bb,}"); |
f26036bb | 7169 | if ((which == 0 && negated) |
7170 | || (which == 1 && !negated)) | |
d9e3874e | 7171 | strcat (buf, "<"); |
f26036bb | 7172 | else |
d9e3874e | 7173 | strcat (buf, ">="); |
f26036bb | 7174 | if (nullify) |
d9e3874e | 7175 | strcat (buf, ",n {%0,.+%4|%0,%%sar,.+%4}"); |
f26036bb | 7176 | else |
d9e3874e | 7177 | strcat (buf, " {%0,.+%4|%0,%%sar,.+%4}"); |
f26036bb | 7178 | output_asm_insn (buf, operands); |
e202682d | 7179 | return pa_output_lbranch (negated ? operands[3] : operands[2], |
7180 | insn, xdelay); | |
c7a4e712 | 7181 | } |
7182 | return buf; | |
7183 | } | |
7184 | ||
29a4502c | 7185 | /* Return the output template for emitting a dbra type insn. |
7186 | ||
7187 | Note it may perform some output operations on its own before | |
7188 | returning the final output string. */ | |
611a88e1 | 7189 | const char * |
91a55c11 | 7190 | pa_output_dbra (rtx *operands, rtx_insn *insn, int which_alternative) |
29a4502c | 7191 | { |
f26036bb | 7192 | int length = get_attr_length (insn); |
29a4502c | 7193 | |
a361b456 | 7194 | /* A conditional branch to the following instruction (e.g. the delay slot) is |
29a4502c | 7195 | asking for a disaster. Be prepared! */ |
7196 | ||
317754f4 | 7197 | if (branch_to_delay_slot_p (insn)) |
29a4502c | 7198 | { |
7199 | if (which_alternative == 0) | |
7200 | return "ldo %1(%0),%0"; | |
7201 | else if (which_alternative == 1) | |
7202 | { | |
ea52c577 | 7203 | output_asm_insn ("{fstws|fstw} %0,-16(%%r30)", operands); |
7204 | output_asm_insn ("ldw -16(%%r30),%4", operands); | |
34940871 | 7205 | output_asm_insn ("ldo %1(%4),%4\n\tstw %4,-16(%%r30)", operands); |
e4065f95 | 7206 | return "{fldws|fldw} -16(%%r30),%0"; |
29a4502c | 7207 | } |
7208 | else | |
7209 | { | |
7210 | output_asm_insn ("ldw %0,%4", operands); | |
7211 | return "ldo %1(%4),%4\n\tstw %4,%0"; | |
7212 | } | |
7213 | } | |
7214 | ||
7215 | if (which_alternative == 0) | |
7216 | { | |
7217 | int nullify = INSN_ANNULLED_BRANCH_P (insn); | |
f26036bb | 7218 | int xdelay; |
29a4502c | 7219 | |
7220 | /* If this is a long branch with its delay slot unfilled, set `nullify' | |
7221 | as it can nullify the delay slot and save a nop. */ | |
5a1231ef | 7222 | if (length == 8 && dbr_sequence_length () == 0) |
29a4502c | 7223 | nullify = 1; |
7224 | ||
7225 | /* If this is a short forward conditional branch which did not get | |
7226 | its delay slot filled, the delay slot can still be nullified. */ | |
5a1231ef | 7227 | if (! nullify && length == 4 && dbr_sequence_length () == 0) |
29a4502c | 7228 | nullify = forward_branch_p (insn); |
7229 | ||
ecf2283d | 7230 | switch (length) |
29a4502c | 7231 | { |
ecf2283d | 7232 | case 4: |
7233 | if (nullify) | |
317754f4 | 7234 | { |
7235 | if (branch_needs_nop_p (insn)) | |
7236 | return "addib,%C2,n %1,%0,%3%#"; | |
7237 | else | |
7238 | return "addib,%C2,n %1,%0,%3"; | |
7239 | } | |
ecf2283d | 7240 | else |
7241 | return "addib,%C2 %1,%0,%3"; | |
7242 | ||
7243 | case 8: | |
6d36483b | 7244 | /* Handle weird backwards branch with a fulled delay slot |
29a4502c | 7245 | which is nullified. */ |
7246 | if (dbr_sequence_length () != 0 | |
7247 | && ! forward_branch_p (insn) | |
7248 | && nullify) | |
5a811d43 | 7249 | return "addib,%N2,n %1,%0,.+12\n\tb %3"; |
43f0c1f2 | 7250 | /* Handle short backwards branch with an unfilled delay slot. |
7251 | Using a addb;nop rather than addi;bl saves 1 cycle for both | |
7252 | taken and untaken branches. */ | |
7253 | else if (dbr_sequence_length () == 0 | |
7254 | && ! forward_branch_p (insn) | |
47fc0706 | 7255 | && INSN_ADDRESSES_SET_P () |
7256 | && VAL_14_BITS_P (INSN_ADDRESSES (INSN_UID (JUMP_LABEL (insn))) | |
7257 | - INSN_ADDRESSES (INSN_UID (insn)) - 8)) | |
43f0c1f2 | 7258 | return "addib,%C2 %1,%0,%3%#"; |
6d36483b | 7259 | |
7260 | /* Handle normal cases. */ | |
29a4502c | 7261 | if (nullify) |
5a811d43 | 7262 | return "addi,%N2 %1,%0,%0\n\tb,n %3"; |
29a4502c | 7263 | else |
5a811d43 | 7264 | return "addi,%N2 %1,%0,%0\n\tb %3"; |
ecf2283d | 7265 | |
7266 | default: | |
f26036bb | 7267 | /* The reversed conditional branch must branch over one additional |
7268 | instruction if the delay slot is filled and needs to be extracted | |
e202682d | 7269 | by pa_output_lbranch. If the delay slot is empty or this is a |
f26036bb | 7270 | nullified forward branch, the instruction after the reversed |
7271 | condition branch must be nullified. */ | |
7272 | if (dbr_sequence_length () == 0 | |
7273 | || (nullify && forward_branch_p (insn))) | |
7274 | { | |
7275 | nullify = 1; | |
7276 | xdelay = 0; | |
7277 | operands[4] = GEN_INT (length); | |
7278 | } | |
7279 | else | |
7280 | { | |
7281 | xdelay = 1; | |
7282 | operands[4] = GEN_INT (length + 4); | |
7283 | } | |
7284 | ||
7285 | if (nullify) | |
7286 | output_asm_insn ("addib,%N2,n %1,%0,.+%4", operands); | |
7287 | else | |
7288 | output_asm_insn ("addib,%N2 %1,%0,.+%4", operands); | |
7289 | ||
e202682d | 7290 | return pa_output_lbranch (operands[3], insn, xdelay); |
29a4502c | 7291 | } |
ecf2283d | 7292 | |
29a4502c | 7293 | } |
7294 | /* Deal with gross reload from FP register case. */ | |
7295 | else if (which_alternative == 1) | |
7296 | { | |
7297 | /* Move loop counter from FP register to MEM then into a GR, | |
7298 | increment the GR, store the GR into MEM, and finally reload | |
6d36483b | 7299 | the FP register from MEM from within the branch's delay slot. */ |
ea52c577 | 7300 | output_asm_insn ("{fstws|fstw} %0,-16(%%r30)\n\tldw -16(%%r30),%4", |
7301 | operands); | |
34940871 | 7302 | output_asm_insn ("ldo %1(%4),%4\n\tstw %4,-16(%%r30)", operands); |
f26036bb | 7303 | if (length == 24) |
e4065f95 | 7304 | return "{comb|cmpb},%S2 %%r0,%4,%3\n\t{fldws|fldw} -16(%%r30),%0"; |
f26036bb | 7305 | else if (length == 28) |
e4065f95 | 7306 | return "{comclr|cmpclr},%B2 %%r0,%4,%%r0\n\tb %3\n\t{fldws|fldw} -16(%%r30),%0"; |
f26036bb | 7307 | else |
7308 | { | |
d9e3874e | 7309 | operands[5] = GEN_INT (length - 16); |
7310 | output_asm_insn ("{comb|cmpb},%B2 %%r0,%4,.+%5", operands); | |
f26036bb | 7311 | output_asm_insn ("{fldws|fldw} -16(%%r30),%0", operands); |
e202682d | 7312 | return pa_output_lbranch (operands[3], insn, 0); |
f26036bb | 7313 | } |
29a4502c | 7314 | } |
7315 | /* Deal with gross reload from memory case. */ | |
7316 | else | |
7317 | { | |
7318 | /* Reload loop counter from memory, the store back to memory | |
5aedf60c | 7319 | happens in the branch's delay slot. */ |
29a4502c | 7320 | output_asm_insn ("ldw %0,%4", operands); |
f26036bb | 7321 | if (length == 12) |
29a4502c | 7322 | return "addib,%C2 %1,%4,%3\n\tstw %4,%0"; |
f26036bb | 7323 | else if (length == 16) |
5a811d43 | 7324 | return "addi,%N2 %1,%4,%4\n\tb %3\n\tstw %4,%0"; |
f26036bb | 7325 | else |
7326 | { | |
d9e3874e | 7327 | operands[5] = GEN_INT (length - 4); |
7328 | output_asm_insn ("addib,%N2 %1,%4,.+%5\n\tstw %4,%0", operands); | |
e202682d | 7329 | return pa_output_lbranch (operands[3], insn, 0); |
f26036bb | 7330 | } |
29a4502c | 7331 | } |
7332 | } | |
7333 | ||
f26036bb | 7334 | /* Return the output template for emitting a movb type insn. |
29a4502c | 7335 | |
7336 | Note it may perform some output operations on its own before | |
7337 | returning the final output string. */ | |
611a88e1 | 7338 | const char * |
91a55c11 | 7339 | pa_output_movb (rtx *operands, rtx_insn *insn, int which_alternative, |
5c1d8983 | 7340 | int reverse_comparison) |
29a4502c | 7341 | { |
f26036bb | 7342 | int length = get_attr_length (insn); |
29a4502c | 7343 | |
a361b456 | 7344 | /* A conditional branch to the following instruction (e.g. the delay slot) is |
29a4502c | 7345 | asking for a disaster. Be prepared! */ |
7346 | ||
317754f4 | 7347 | if (branch_to_delay_slot_p (insn)) |
29a4502c | 7348 | { |
7349 | if (which_alternative == 0) | |
7350 | return "copy %1,%0"; | |
7351 | else if (which_alternative == 1) | |
7352 | { | |
ea52c577 | 7353 | output_asm_insn ("stw %1,-16(%%r30)", operands); |
e4065f95 | 7354 | return "{fldws|fldw} -16(%%r30),%0"; |
29a4502c | 7355 | } |
546a40bd | 7356 | else if (which_alternative == 2) |
29a4502c | 7357 | return "stw %1,%0"; |
546a40bd | 7358 | else |
7359 | return "mtsar %r1"; | |
29a4502c | 7360 | } |
7361 | ||
7362 | /* Support the second variant. */ | |
7363 | if (reverse_comparison) | |
7364 | PUT_CODE (operands[2], reverse_condition (GET_CODE (operands[2]))); | |
7365 | ||
7366 | if (which_alternative == 0) | |
7367 | { | |
7368 | int nullify = INSN_ANNULLED_BRANCH_P (insn); | |
f26036bb | 7369 | int xdelay; |
29a4502c | 7370 | |
7371 | /* If this is a long branch with its delay slot unfilled, set `nullify' | |
7372 | as it can nullify the delay slot and save a nop. */ | |
5a1231ef | 7373 | if (length == 8 && dbr_sequence_length () == 0) |
29a4502c | 7374 | nullify = 1; |
7375 | ||
7376 | /* If this is a short forward conditional branch which did not get | |
7377 | its delay slot filled, the delay slot can still be nullified. */ | |
5a1231ef | 7378 | if (! nullify && length == 4 && dbr_sequence_length () == 0) |
29a4502c | 7379 | nullify = forward_branch_p (insn); |
7380 | ||
ecf2283d | 7381 | switch (length) |
29a4502c | 7382 | { |
ecf2283d | 7383 | case 4: |
7384 | if (nullify) | |
317754f4 | 7385 | { |
7386 | if (branch_needs_nop_p (insn)) | |
7387 | return "movb,%C2,n %1,%0,%3%#"; | |
7388 | else | |
7389 | return "movb,%C2,n %1,%0,%3"; | |
7390 | } | |
ecf2283d | 7391 | else |
7392 | return "movb,%C2 %1,%0,%3"; | |
7393 | ||
7394 | case 8: | |
6d36483b | 7395 | /* Handle weird backwards branch with a filled delay slot |
29a4502c | 7396 | which is nullified. */ |
7397 | if (dbr_sequence_length () != 0 | |
7398 | && ! forward_branch_p (insn) | |
7399 | && nullify) | |
5a811d43 | 7400 | return "movb,%N2,n %1,%0,.+12\n\tb %3"; |
6d36483b | 7401 | |
43f0c1f2 | 7402 | /* Handle short backwards branch with an unfilled delay slot. |
7403 | Using a movb;nop rather than or;bl saves 1 cycle for both | |
7404 | taken and untaken branches. */ | |
7405 | else if (dbr_sequence_length () == 0 | |
7406 | && ! forward_branch_p (insn) | |
47fc0706 | 7407 | && INSN_ADDRESSES_SET_P () |
7408 | && VAL_14_BITS_P (INSN_ADDRESSES (INSN_UID (JUMP_LABEL (insn))) | |
7409 | - INSN_ADDRESSES (INSN_UID (insn)) - 8)) | |
43f0c1f2 | 7410 | return "movb,%C2 %1,%0,%3%#"; |
6d36483b | 7411 | /* Handle normal cases. */ |
29a4502c | 7412 | if (nullify) |
5a811d43 | 7413 | return "or,%N2 %1,%%r0,%0\n\tb,n %3"; |
29a4502c | 7414 | else |
5a811d43 | 7415 | return "or,%N2 %1,%%r0,%0\n\tb %3"; |
ecf2283d | 7416 | |
7417 | default: | |
f26036bb | 7418 | /* The reversed conditional branch must branch over one additional |
7419 | instruction if the delay slot is filled and needs to be extracted | |
e202682d | 7420 | by pa_output_lbranch. If the delay slot is empty or this is a |
f26036bb | 7421 | nullified forward branch, the instruction after the reversed |
7422 | condition branch must be nullified. */ | |
7423 | if (dbr_sequence_length () == 0 | |
7424 | || (nullify && forward_branch_p (insn))) | |
7425 | { | |
7426 | nullify = 1; | |
7427 | xdelay = 0; | |
7428 | operands[4] = GEN_INT (length); | |
7429 | } | |
7430 | else | |
7431 | { | |
7432 | xdelay = 1; | |
7433 | operands[4] = GEN_INT (length + 4); | |
7434 | } | |
7435 | ||
7436 | if (nullify) | |
7437 | output_asm_insn ("movb,%N2,n %1,%0,.+%4", operands); | |
7438 | else | |
7439 | output_asm_insn ("movb,%N2 %1,%0,.+%4", operands); | |
7440 | ||
e202682d | 7441 | return pa_output_lbranch (operands[3], insn, xdelay); |
29a4502c | 7442 | } |
29a4502c | 7443 | } |
f26036bb | 7444 | /* Deal with gross reload for FP destination register case. */ |
29a4502c | 7445 | else if (which_alternative == 1) |
7446 | { | |
f26036bb | 7447 | /* Move source register to MEM, perform the branch test, then |
7448 | finally load the FP register from MEM from within the branch's | |
7449 | delay slot. */ | |
ea52c577 | 7450 | output_asm_insn ("stw %1,-16(%%r30)", operands); |
f26036bb | 7451 | if (length == 12) |
e4065f95 | 7452 | return "{comb|cmpb},%S2 %%r0,%1,%3\n\t{fldws|fldw} -16(%%r30),%0"; |
f26036bb | 7453 | else if (length == 16) |
e4065f95 | 7454 | return "{comclr|cmpclr},%B2 %%r0,%1,%%r0\n\tb %3\n\t{fldws|fldw} -16(%%r30),%0"; |
f26036bb | 7455 | else |
7456 | { | |
d9e3874e | 7457 | operands[4] = GEN_INT (length - 4); |
7458 | output_asm_insn ("{comb|cmpb},%B2 %%r0,%1,.+%4", operands); | |
f26036bb | 7459 | output_asm_insn ("{fldws|fldw} -16(%%r30),%0", operands); |
e202682d | 7460 | return pa_output_lbranch (operands[3], insn, 0); |
f26036bb | 7461 | } |
29a4502c | 7462 | } |
7463 | /* Deal with gross reload from memory case. */ | |
546a40bd | 7464 | else if (which_alternative == 2) |
29a4502c | 7465 | { |
7466 | /* Reload loop counter from memory, the store back to memory | |
5aedf60c | 7467 | happens in the branch's delay slot. */ |
f26036bb | 7468 | if (length == 8) |
e4065f95 | 7469 | return "{comb|cmpb},%S2 %%r0,%1,%3\n\tstw %1,%0"; |
f26036bb | 7470 | else if (length == 12) |
e4065f95 | 7471 | return "{comclr|cmpclr},%B2 %%r0,%1,%%r0\n\tb %3\n\tstw %1,%0"; |
f26036bb | 7472 | else |
7473 | { | |
d9e3874e | 7474 | operands[4] = GEN_INT (length); |
7475 | output_asm_insn ("{comb|cmpb},%B2 %%r0,%1,.+%4\n\tstw %1,%0", | |
7476 | operands); | |
e202682d | 7477 | return pa_output_lbranch (operands[3], insn, 0); |
f26036bb | 7478 | } |
29a4502c | 7479 | } |
546a40bd | 7480 | /* Handle SAR as a destination. */ |
7481 | else | |
7482 | { | |
f26036bb | 7483 | if (length == 8) |
e4065f95 | 7484 | return "{comb|cmpb},%S2 %%r0,%1,%3\n\tmtsar %r1"; |
f26036bb | 7485 | else if (length == 12) |
be7770ad | 7486 | return "{comclr|cmpclr},%B2 %%r0,%1,%%r0\n\tb %3\n\tmtsar %r1"; |
f26036bb | 7487 | else |
7488 | { | |
d9e3874e | 7489 | operands[4] = GEN_INT (length); |
7490 | output_asm_insn ("{comb|cmpb},%B2 %%r0,%1,.+%4\n\tmtsar %r1", | |
7491 | operands); | |
e202682d | 7492 | return pa_output_lbranch (operands[3], insn, 0); |
f26036bb | 7493 | } |
546a40bd | 7494 | } |
29a4502c | 7495 | } |
7496 | ||
ece88821 | 7497 | /* Copy any FP arguments in INSN into integer registers. */ |
7498 | static void | |
89dcddd6 | 7499 | copy_fp_args (rtx_insn *insn) |
ece88821 | 7500 | { |
7501 | rtx link; | |
7502 | rtx xoperands[2]; | |
29a4502c | 7503 | |
ece88821 | 7504 | for (link = CALL_INSN_FUNCTION_USAGE (insn); link; link = XEXP (link, 1)) |
7505 | { | |
7506 | int arg_mode, regno; | |
7507 | rtx use = XEXP (link, 0); | |
3683f840 | 7508 | |
ece88821 | 7509 | if (! (GET_CODE (use) == USE |
7510 | && GET_CODE (XEXP (use, 0)) == REG | |
7511 | && FUNCTION_ARG_REGNO_P (REGNO (XEXP (use, 0))))) | |
7512 | continue; | |
d6686e21 | 7513 | |
ece88821 | 7514 | arg_mode = GET_MODE (XEXP (use, 0)); |
7515 | regno = REGNO (XEXP (use, 0)); | |
5e3c5739 | 7516 | |
ece88821 | 7517 | /* Is it a floating point register? */ |
7518 | if (regno >= 32 && regno <= 39) | |
7519 | { | |
7520 | /* Copy the FP register into an integer register via memory. */ | |
7521 | if (arg_mode == SFmode) | |
7522 | { | |
7523 | xoperands[0] = XEXP (use, 0); | |
7524 | xoperands[1] = gen_rtx_REG (SImode, 26 - (regno - 32) / 2); | |
7525 | output_asm_insn ("{fstws|fstw} %0,-16(%%sr0,%%r30)", xoperands); | |
7526 | output_asm_insn ("ldw -16(%%sr0,%%r30),%1", xoperands); | |
7527 | } | |
7528 | else | |
7529 | { | |
7530 | xoperands[0] = XEXP (use, 0); | |
7531 | xoperands[1] = gen_rtx_REG (DImode, 25 - (regno - 34) / 2); | |
7532 | output_asm_insn ("{fstds|fstd} %0,-16(%%sr0,%%r30)", xoperands); | |
7533 | output_asm_insn ("ldw -12(%%sr0,%%r30),%R1", xoperands); | |
7534 | output_asm_insn ("ldw -16(%%sr0,%%r30),%1", xoperands); | |
7535 | } | |
7536 | } | |
06ddb6f8 | 7537 | } |
ece88821 | 7538 | } |
7539 | ||
7540 | /* Compute length of the FP argument copy sequence for INSN. */ | |
7541 | static int | |
89dcddd6 | 7542 | length_fp_args (rtx_insn *insn) |
ece88821 | 7543 | { |
7544 | int length = 0; | |
7545 | rtx link; | |
06ddb6f8 | 7546 | |
ece88821 | 7547 | for (link = CALL_INSN_FUNCTION_USAGE (insn); link; link = XEXP (link, 1)) |
c7a4e712 | 7548 | { |
ece88821 | 7549 | int arg_mode, regno; |
7550 | rtx use = XEXP (link, 0); | |
7551 | ||
7552 | if (! (GET_CODE (use) == USE | |
7553 | && GET_CODE (XEXP (use, 0)) == REG | |
7554 | && FUNCTION_ARG_REGNO_P (REGNO (XEXP (use, 0))))) | |
7555 | continue; | |
c7a4e712 | 7556 | |
ece88821 | 7557 | arg_mode = GET_MODE (XEXP (use, 0)); |
7558 | regno = REGNO (XEXP (use, 0)); | |
7559 | ||
7560 | /* Is it a floating point register? */ | |
7561 | if (regno >= 32 && regno <= 39) | |
c7a4e712 | 7562 | { |
ece88821 | 7563 | if (arg_mode == SFmode) |
7564 | length += 8; | |
7565 | else | |
7566 | length += 12; | |
c7a4e712 | 7567 | } |
ece88821 | 7568 | } |
c7a4e712 | 7569 | |
ece88821 | 7570 | return length; |
7571 | } | |
b70ea764 | 7572 | |
cd0dfcc5 | 7573 | /* Return the attribute length for the millicode call instruction INSN. |
e202682d | 7574 | The length must match the code generated by pa_output_millicode_call. |
cd0dfcc5 | 7575 | We include the delay slot in the returned length as it is better to |
ece88821 | 7576 | over estimate the length than to under estimate it. */ |
b29897dd | 7577 | |
ece88821 | 7578 | int |
8443f305 | 7579 | pa_attr_length_millicode_call (rtx_insn *insn) |
ece88821 | 7580 | { |
cd0dfcc5 | 7581 | unsigned long distance = -1; |
8a05c3c2 | 7582 | unsigned long total = IN_NAMED_SECTION_P (cfun->decl) ? 0 : total_code_bytes; |
ece88821 | 7583 | |
cd0dfcc5 | 7584 | if (INSN_ADDRESSES_SET_P ()) |
7585 | { | |
2247cc5f | 7586 | distance = (total + insn_current_reference_address (insn)); |
7587 | if (distance < total) | |
cd0dfcc5 | 7588 | distance = -1; |
7589 | } | |
ece88821 | 7590 | |
7591 | if (TARGET_64BIT) | |
7592 | { | |
7593 | if (!TARGET_LONG_CALLS && distance < 7600000) | |
cd0dfcc5 | 7594 | return 8; |
ece88821 | 7595 | |
cd0dfcc5 | 7596 | return 20; |
ece88821 | 7597 | } |
7598 | else if (TARGET_PORTABLE_RUNTIME) | |
cd0dfcc5 | 7599 | return 24; |
ece88821 | 7600 | else |
7601 | { | |
4f12c67a | 7602 | if (!TARGET_LONG_CALLS && distance < MAX_PCREL17F_OFFSET) |
cd0dfcc5 | 7603 | return 8; |
ece88821 | 7604 | |
8ff5fb9b | 7605 | if (!flag_pic) |
cd0dfcc5 | 7606 | return 12; |
ece88821 | 7607 | |
cd0dfcc5 | 7608 | return 24; |
ece88821 | 7609 | } |
7610 | } | |
7611 | ||
16b068df | 7612 | /* INSN is a function call. |
b29897dd | 7613 | |
ece88821 | 7614 | CALL_DEST is the routine we are calling. */ |
b29897dd | 7615 | |
ece88821 | 7616 | const char * |
91a55c11 | 7617 | pa_output_millicode_call (rtx_insn *insn, rtx call_dest) |
ece88821 | 7618 | { |
7619 | int attr_length = get_attr_length (insn); | |
7620 | int seq_length = dbr_sequence_length (); | |
ece88821 | 7621 | rtx xoperands[3]; |
b29897dd | 7622 | |
ece88821 | 7623 | xoperands[0] = call_dest; |
7624 | xoperands[2] = gen_rtx_REG (Pmode, TARGET_64BIT ? 2 : 31); | |
7625 | ||
7626 | /* Handle the common case where we are sure that the branch will | |
7627 | reach the beginning of the $CODE$ subspace. The within reach | |
8c9327d2 | 7628 | form of the $$sh_func_adrs call has a length of 28. Because it |
7629 | has an attribute type of sh_func_adrs, it never has a nonzero | |
7630 | sequence length (i.e., the delay slot is never filled). */ | |
ece88821 | 7631 | if (!TARGET_LONG_CALLS |
8c9327d2 | 7632 | && (attr_length == 8 |
7633 | || (attr_length == 28 | |
7634 | && get_attr_type (insn) == TYPE_SH_FUNC_ADRS))) | |
ece88821 | 7635 | { |
7636 | output_asm_insn ("{bl|b,l} %0,%2", xoperands); | |
7637 | } | |
7638 | else | |
7639 | { | |
7640 | if (TARGET_64BIT) | |
7641 | { | |
7642 | /* It might seem that one insn could be saved by accessing | |
7643 | the millicode function using the linkage table. However, | |
7644 | this doesn't work in shared libraries and other dynamically | |
7645 | loaded objects. Using a pc-relative sequence also avoids | |
7646 | problems related to the implicit use of the gp register. */ | |
7647 | output_asm_insn ("b,l .+8,%%r1", xoperands); | |
9bd9af5d | 7648 | |
7649 | if (TARGET_GAS) | |
7650 | { | |
7651 | output_asm_insn ("addil L'%0-$PIC_pcrel$0+4,%%r1", xoperands); | |
7652 | output_asm_insn ("ldo R'%0-$PIC_pcrel$0+8(%%r1),%%r1", xoperands); | |
7653 | } | |
7654 | else | |
7655 | { | |
7656 | xoperands[1] = gen_label_rtx (); | |
7657 | output_asm_insn ("addil L'%0-%l1,%%r1", xoperands); | |
c5559ed4 | 7658 | targetm.asm_out.internal_label (asm_out_file, "L", |
9bd9af5d | 7659 | CODE_LABEL_NUMBER (xoperands[1])); |
7660 | output_asm_insn ("ldo R'%0-%l1(%%r1),%%r1", xoperands); | |
7661 | } | |
7662 | ||
ece88821 | 7663 | output_asm_insn ("bve,l (%%r1),%%r2", xoperands); |
c7a4e712 | 7664 | } |
c7a4e712 | 7665 | else if (TARGET_PORTABLE_RUNTIME) |
7666 | { | |
ece88821 | 7667 | /* Pure portable runtime doesn't allow be/ble; we also don't |
7668 | have PIC support in the assembler/linker, so this sequence | |
7669 | is needed. */ | |
c7a4e712 | 7670 | |
ece88821 | 7671 | /* Get the address of our target into %r1. */ |
7672 | output_asm_insn ("ldil L'%0,%%r1", xoperands); | |
7673 | output_asm_insn ("ldo R'%0(%%r1),%%r1", xoperands); | |
c7a4e712 | 7674 | |
ece88821 | 7675 | /* Get our return address into %r31. */ |
7676 | output_asm_insn ("{bl|b,l} .+8,%%r31", xoperands); | |
7677 | output_asm_insn ("addi 8,%%r31,%%r31", xoperands); | |
c7a4e712 | 7678 | |
ece88821 | 7679 | /* Jump to our target address in %r1. */ |
7680 | output_asm_insn ("bv %%r0(%%r1)", xoperands); | |
c7a4e712 | 7681 | } |
ece88821 | 7682 | else if (!flag_pic) |
c7a4e712 | 7683 | { |
ece88821 | 7684 | output_asm_insn ("ldil L'%0,%%r1", xoperands); |
356267e0 | 7685 | if (TARGET_PA_20) |
ece88821 | 7686 | output_asm_insn ("be,l R'%0(%%sr4,%%r1),%%sr0,%%r31", xoperands); |
356267e0 | 7687 | else |
ece88821 | 7688 | output_asm_insn ("ble R'%0(%%sr4,%%r1)", xoperands); |
c7a4e712 | 7689 | } |
ece88821 | 7690 | else |
c7a4e712 | 7691 | { |
9bd9af5d | 7692 | output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands); |
7693 | output_asm_insn ("addi 16,%%r1,%%r31", xoperands); | |
7694 | ||
ece88821 | 7695 | if (TARGET_SOM || !TARGET_GAS) |
7696 | { | |
7697 | /* The HP assembler can generate relocations for the | |
7698 | difference of two symbols. GAS can do this for a | |
7699 | millicode symbol but not an arbitrary external | |
7700 | symbol when generating SOM output. */ | |
7701 | xoperands[1] = gen_label_rtx (); | |
c5559ed4 | 7702 | targetm.asm_out.internal_label (asm_out_file, "L", |
ece88821 | 7703 | CODE_LABEL_NUMBER (xoperands[1])); |
7704 | output_asm_insn ("addil L'%0-%l1,%%r1", xoperands); | |
7705 | output_asm_insn ("ldo R'%0-%l1(%%r1),%%r1", xoperands); | |
7706 | } | |
7707 | else | |
7708 | { | |
ece88821 | 7709 | output_asm_insn ("addil L'%0-$PIC_pcrel$0+8,%%r1", xoperands); |
7710 | output_asm_insn ("ldo R'%0-$PIC_pcrel$0+12(%%r1),%%r1", | |
7711 | xoperands); | |
7712 | } | |
c7a4e712 | 7713 | |
ece88821 | 7714 | /* Jump to our target address in %r1. */ |
7715 | output_asm_insn ("bv %%r0(%%r1)", xoperands); | |
c7a4e712 | 7716 | } |
c7a4e712 | 7717 | } |
7718 | ||
ece88821 | 7719 | if (seq_length == 0) |
7720 | output_asm_insn ("nop", xoperands); | |
c7a4e712 | 7721 | |
c7a4e712 | 7722 | return ""; |
7723 | } | |
7724 | ||
cd0dfcc5 | 7725 | /* Return the attribute length of the call instruction INSN. The SIBCALL |
7726 | flag indicates whether INSN is a regular call or a sibling call. The | |
faf3f8c1 | 7727 | length returned must be longer than the code actually generated by |
e202682d | 7728 | pa_output_call. Since branch shortening is done before delay branch |
faf3f8c1 | 7729 | sequencing, there is no way to determine whether or not the delay |
7730 | slot will be filled during branch shortening. Even when the delay | |
7731 | slot is filled, we may have to add a nop if the delay slot contains | |
7732 | a branch that can't reach its target. Thus, we always have to include | |
7733 | the delay slot in the length estimate. This used to be done in | |
7734 | pa_adjust_insn_length but we do it here now as some sequences always | |
7735 | fill the delay slot and we can save four bytes in the estimate for | |
7736 | these sequences. */ | |
ece88821 | 7737 | |
7738 | int | |
8443f305 | 7739 | pa_attr_length_call (rtx_insn *insn, int sibcall) |
ece88821 | 7740 | { |
faf3f8c1 | 7741 | int local_call; |
f7bb6501 | 7742 | rtx call, call_dest; |
faf3f8c1 | 7743 | tree call_decl; |
7744 | int length = 0; | |
7745 | rtx pat = PATTERN (insn); | |
cd0dfcc5 | 7746 | unsigned long distance = -1; |
ece88821 | 7747 | |
aa90bb35 | 7748 | gcc_assert (CALL_P (insn)); |
f7bb6501 | 7749 | |
cd0dfcc5 | 7750 | if (INSN_ADDRESSES_SET_P ()) |
7751 | { | |
faf3f8c1 | 7752 | unsigned long total; |
7753 | ||
7754 | total = IN_NAMED_SECTION_P (cfun->decl) ? 0 : total_code_bytes; | |
2247cc5f | 7755 | distance = (total + insn_current_reference_address (insn)); |
7756 | if (distance < total) | |
cd0dfcc5 | 7757 | distance = -1; |
7758 | } | |
ece88821 | 7759 | |
f7bb6501 | 7760 | gcc_assert (GET_CODE (pat) == PARALLEL); |
ece88821 | 7761 | |
f7bb6501 | 7762 | /* Get the call rtx. */ |
7763 | call = XVECEXP (pat, 0, 0); | |
7764 | if (GET_CODE (call) == SET) | |
7765 | call = SET_SRC (call); | |
7766 | ||
7767 | gcc_assert (GET_CODE (call) == CALL); | |
7768 | ||
7769 | /* Determine if this is a local call. */ | |
7770 | call_dest = XEXP (XEXP (call, 0), 0); | |
faf3f8c1 | 7771 | call_decl = SYMBOL_REF_DECL (call_dest); |
c5559ed4 | 7772 | local_call = call_decl && targetm.binds_local_p (call_decl); |
ece88821 | 7773 | |
faf3f8c1 | 7774 | /* pc-relative branch. */ |
7775 | if (!TARGET_LONG_CALLS | |
7776 | && ((TARGET_PA_20 && !sibcall && distance < 7600000) | |
4f12c67a | 7777 | || distance < MAX_PCREL17F_OFFSET)) |
faf3f8c1 | 7778 | length += 8; |
ece88821 | 7779 | |
faf3f8c1 | 7780 | /* 64-bit plabel sequence. */ |
7781 | else if (TARGET_64BIT && !local_call) | |
7782 | length += sibcall ? 28 : 24; | |
ece88821 | 7783 | |
faf3f8c1 | 7784 | /* non-pic long absolute branch sequence. */ |
7785 | else if ((TARGET_LONG_ABS_CALL || local_call) && !flag_pic) | |
7786 | length += 12; | |
ece88821 | 7787 | |
faf3f8c1 | 7788 | /* long pc-relative branch sequence. */ |
feb01ed5 | 7789 | else if (TARGET_LONG_PIC_SDIFF_CALL |
ea24f9f4 | 7790 | || (TARGET_GAS && !TARGET_SOM |
7791 | && (TARGET_LONG_PIC_PCREL_CALL || local_call))) | |
faf3f8c1 | 7792 | { |
7793 | length += 20; | |
ece88821 | 7794 | |
226f6453 | 7795 | if (!TARGET_PA_20 && !TARGET_NO_SPACE_REGS && (!local_call || flag_pic)) |
faf3f8c1 | 7796 | length += 8; |
7797 | } | |
8a05c3c2 | 7798 | |
faf3f8c1 | 7799 | /* 32-bit plabel sequence. */ |
7800 | else | |
7801 | { | |
7802 | length += 32; | |
ece88821 | 7803 | |
faf3f8c1 | 7804 | if (TARGET_SOM) |
7805 | length += length_fp_args (insn); | |
7806 | ||
7807 | if (flag_pic) | |
7808 | length += 4; | |
ee376abe | 7809 | |
faf3f8c1 | 7810 | if (!TARGET_PA_20) |
7811 | { | |
ece88821 | 7812 | if (!sibcall) |
7813 | length += 8; | |
7814 | ||
226f6453 | 7815 | if (!TARGET_NO_SPACE_REGS && (!local_call || flag_pic)) |
faf3f8c1 | 7816 | length += 8; |
ece88821 | 7817 | } |
7818 | } | |
faf3f8c1 | 7819 | |
7820 | return length; | |
ece88821 | 7821 | } |
7822 | ||
16b068df | 7823 | /* INSN is a function call. |
c7a4e712 | 7824 | |
7825 | CALL_DEST is the routine we are calling. */ | |
7826 | ||
611a88e1 | 7827 | const char * |
8443f305 | 7828 | pa_output_call (rtx_insn *insn, rtx call_dest, int sibcall) |
c7a4e712 | 7829 | { |
b70ea764 | 7830 | int seq_length = dbr_sequence_length (); |
2247cc5f | 7831 | tree call_decl = SYMBOL_REF_DECL (call_dest); |
c5559ed4 | 7832 | int local_call = call_decl && targetm.binds_local_p (call_decl); |
ece88821 | 7833 | rtx xoperands[2]; |
7834 | ||
7835 | xoperands[0] = call_dest; | |
c7a4e712 | 7836 | |
ece88821 | 7837 | /* Handle the common case where we're sure that the branch will reach |
2247cc5f | 7838 | the beginning of the "$CODE$" subspace. This is the beginning of |
7839 | the current function if we are in a named section. */ | |
e202682d | 7840 | if (!TARGET_LONG_CALLS && pa_attr_length_call (insn, sibcall) == 8) |
d6686e21 | 7841 | { |
5e3c5739 | 7842 | xoperands[1] = gen_rtx_REG (word_mode, sibcall ? 0 : 2); |
ece88821 | 7843 | output_asm_insn ("{bl|b,l} %0,%1", xoperands); |
06ddb6f8 | 7844 | } |
ece88821 | 7845 | else |
06ddb6f8 | 7846 | { |
2247cc5f | 7847 | if (TARGET_64BIT && !local_call) |
3683f840 | 7848 | { |
ece88821 | 7849 | /* ??? As far as I can tell, the HP linker doesn't support the |
7850 | long pc-relative sequence described in the 64-bit runtime | |
7851 | architecture. So, we use a slightly longer indirect call. */ | |
e202682d | 7852 | xoperands[0] = pa_get_deferred_plabel (call_dest); |
ece88821 | 7853 | xoperands[1] = gen_label_rtx (); |
7854 | ||
7855 | /* If this isn't a sibcall, we put the load of %r27 into the | |
7856 | delay slot. We can't do this in a sibcall as we don't | |
16b068df | 7857 | have a second call-clobbered scratch register available. |
7858 | We don't need to do anything when generating fast indirect | |
7859 | calls. */ | |
7860 | if (seq_length != 0 && !sibcall) | |
ece88821 | 7861 | { |
7862 | final_scan_insn (NEXT_INSN (insn), asm_out_file, | |
4bf029b0 | 7863 | optimize, 0, NULL); |
ece88821 | 7864 | |
7865 | /* Now delete the delay insn. */ | |
ad4583d9 | 7866 | SET_INSN_DELETED (NEXT_INSN (insn)); |
16b068df | 7867 | seq_length = 0; |
ece88821 | 7868 | } |
06ddb6f8 | 7869 | |
ece88821 | 7870 | output_asm_insn ("addil LT'%0,%%r27", xoperands); |
7871 | output_asm_insn ("ldd RT'%0(%%r1),%%r1", xoperands); | |
7872 | output_asm_insn ("ldd 0(%%r1),%%r1", xoperands); | |
06ddb6f8 | 7873 | |
ece88821 | 7874 | if (sibcall) |
06ddb6f8 | 7875 | { |
ece88821 | 7876 | output_asm_insn ("ldd 24(%%r1),%%r27", xoperands); |
7877 | output_asm_insn ("ldd 16(%%r1),%%r1", xoperands); | |
7878 | output_asm_insn ("bve (%%r1)", xoperands); | |
7879 | } | |
7880 | else | |
7881 | { | |
7882 | output_asm_insn ("ldd 16(%%r1),%%r2", xoperands); | |
7883 | output_asm_insn ("bve,l (%%r2),%%r2", xoperands); | |
7884 | output_asm_insn ("ldd 24(%%r1),%%r27", xoperands); | |
16b068df | 7885 | seq_length = 1; |
06ddb6f8 | 7886 | } |
7887 | } | |
ece88821 | 7888 | else |
e3f53689 | 7889 | { |
ece88821 | 7890 | int indirect_call = 0; |
7891 | ||
7892 | /* Emit a long call. There are several different sequences | |
7893 | of increasing length and complexity. In most cases, | |
7894 | they don't allow an instruction in the delay slot. */ | |
2247cc5f | 7895 | if (!((TARGET_LONG_ABS_CALL || local_call) && !flag_pic) |
feb01ed5 | 7896 | && !TARGET_LONG_PIC_SDIFF_CALL |
ea24f9f4 | 7897 | && !(TARGET_GAS && !TARGET_SOM |
7898 | && (TARGET_LONG_PIC_PCREL_CALL || local_call)) | |
2247cc5f | 7899 | && !TARGET_64BIT) |
ece88821 | 7900 | indirect_call = 1; |
7901 | ||
7902 | if (seq_length != 0 | |
ece88821 | 7903 | && !sibcall |
c4b36071 | 7904 | && (!TARGET_PA_20 |
7905 | || indirect_call | |
7906 | || ((TARGET_LONG_ABS_CALL || local_call) && !flag_pic))) | |
5cc6b2bc | 7907 | { |
ece88821 | 7908 | /* A non-jump insn in the delay slot. By definition we can |
7909 | emit this insn before the call (and in fact before argument | |
7910 | relocating. */ | |
4bf029b0 | 7911 | final_scan_insn (NEXT_INSN (insn), asm_out_file, optimize, 0, |
fbf5169c | 7912 | NULL); |
ece88821 | 7913 | |
7914 | /* Now delete the delay insn. */ | |
ad4583d9 | 7915 | SET_INSN_DELETED (NEXT_INSN (insn)); |
16b068df | 7916 | seq_length = 0; |
5cc6b2bc | 7917 | } |
e3f53689 | 7918 | |
2247cc5f | 7919 | if ((TARGET_LONG_ABS_CALL || local_call) && !flag_pic) |
5cc6b2bc | 7920 | { |
ece88821 | 7921 | /* This is the best sequence for making long calls in |
7922 | non-pic code. Unfortunately, GNU ld doesn't provide | |
7923 | the stub needed for external calls, and GAS's support | |
2247cc5f | 7924 | for this with the SOM linker is buggy. It is safe |
7925 | to use this for local calls. */ | |
ece88821 | 7926 | output_asm_insn ("ldil L'%0,%%r1", xoperands); |
7927 | if (sibcall) | |
7928 | output_asm_insn ("be R'%0(%%sr4,%%r1)", xoperands); | |
7929 | else | |
7930 | { | |
7931 | if (TARGET_PA_20) | |
7932 | output_asm_insn ("be,l R'%0(%%sr4,%%r1),%%sr0,%%r31", | |
7933 | xoperands); | |
7934 | else | |
7935 | output_asm_insn ("ble R'%0(%%sr4,%%r1)", xoperands); | |
c7a4e712 | 7936 | |
ece88821 | 7937 | output_asm_insn ("copy %%r31,%%r2", xoperands); |
16b068df | 7938 | seq_length = 1; |
ece88821 | 7939 | } |
7940 | } | |
7941 | else | |
7942 | { | |
feb01ed5 | 7943 | if (TARGET_LONG_PIC_SDIFF_CALL) |
b70ea764 | 7944 | { |
ece88821 | 7945 | /* The HP assembler and linker can handle relocations |
feb01ed5 | 7946 | for the difference of two symbols. The HP assembler |
7947 | recognizes the sequence as a pc-relative call and | |
7948 | the linker provides stubs when needed. */ | |
ece88821 | 7949 | xoperands[1] = gen_label_rtx (); |
7950 | output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands); | |
7951 | output_asm_insn ("addil L'%0-%l1,%%r1", xoperands); | |
c5559ed4 | 7952 | targetm.asm_out.internal_label (asm_out_file, "L", |
b70ea764 | 7953 | CODE_LABEL_NUMBER (xoperands[1])); |
ece88821 | 7954 | output_asm_insn ("ldo R'%0-%l1(%%r1),%%r1", xoperands); |
7955 | } | |
ea24f9f4 | 7956 | else if (TARGET_GAS && !TARGET_SOM |
7957 | && (TARGET_LONG_PIC_PCREL_CALL || local_call)) | |
b70ea764 | 7958 | { |
ece88821 | 7959 | /* GAS currently can't generate the relocations that |
7960 | are needed for the SOM linker under HP-UX using this | |
7961 | sequence. The GNU linker doesn't generate the stubs | |
7962 | that are needed for external calls on TARGET_ELF32 | |
7963 | with this sequence. For now, we have to use a | |
7964 | longer plabel sequence when using GAS. */ | |
7965 | output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands); | |
7966 | output_asm_insn ("addil L'%0-$PIC_pcrel$0+4,%%r1", | |
b70ea764 | 7967 | xoperands); |
ece88821 | 7968 | output_asm_insn ("ldo R'%0-$PIC_pcrel$0+8(%%r1),%%r1", |
b70ea764 | 7969 | xoperands); |
7970 | } | |
5e3c5739 | 7971 | else |
7972 | { | |
ece88821 | 7973 | /* Emit a long plabel-based call sequence. This is |
7974 | essentially an inline implementation of $$dyncall. | |
7975 | We don't actually try to call $$dyncall as this is | |
7976 | as difficult as calling the function itself. */ | |
e202682d | 7977 | xoperands[0] = pa_get_deferred_plabel (call_dest); |
ece88821 | 7978 | xoperands[1] = gen_label_rtx (); |
7979 | ||
7980 | /* Since the call is indirect, FP arguments in registers | |
7981 | need to be copied to the general registers. Then, the | |
7982 | argument relocation stub will copy them back. */ | |
7983 | if (TARGET_SOM) | |
7984 | copy_fp_args (insn); | |
7985 | ||
7986 | if (flag_pic) | |
7987 | { | |
7988 | output_asm_insn ("addil LT'%0,%%r19", xoperands); | |
7989 | output_asm_insn ("ldw RT'%0(%%r1),%%r1", xoperands); | |
7990 | output_asm_insn ("ldw 0(%%r1),%%r1", xoperands); | |
7991 | } | |
7992 | else | |
7993 | { | |
7994 | output_asm_insn ("addil LR'%0-$global$,%%r27", | |
7995 | xoperands); | |
7996 | output_asm_insn ("ldw RR'%0-$global$(%%r1),%%r1", | |
7997 | xoperands); | |
7998 | } | |
06ddb6f8 | 7999 | |
ece88821 | 8000 | output_asm_insn ("bb,>=,n %%r1,30,.+16", xoperands); |
8001 | output_asm_insn ("depi 0,31,2,%%r1", xoperands); | |
8002 | output_asm_insn ("ldw 4(%%sr0,%%r1),%%r19", xoperands); | |
8003 | output_asm_insn ("ldw 0(%%sr0,%%r1),%%r1", xoperands); | |
c7a4e712 | 8004 | |
ece88821 | 8005 | if (!sibcall && !TARGET_PA_20) |
8006 | { | |
8007 | output_asm_insn ("{bl|b,l} .+8,%%r2", xoperands); | |
226f6453 | 8008 | if (TARGET_NO_SPACE_REGS || (local_call && !flag_pic)) |
ee376abe | 8009 | output_asm_insn ("addi 8,%%r2,%%r2", xoperands); |
8010 | else | |
8011 | output_asm_insn ("addi 16,%%r2,%%r2", xoperands); | |
ece88821 | 8012 | } |
8013 | } | |
c7a4e712 | 8014 | |
ece88821 | 8015 | if (TARGET_PA_20) |
5e3c5739 | 8016 | { |
ece88821 | 8017 | if (sibcall) |
8018 | output_asm_insn ("bve (%%r1)", xoperands); | |
8019 | else | |
8020 | { | |
8021 | if (indirect_call) | |
8022 | { | |
8023 | output_asm_insn ("bve,l (%%r1),%%r2", xoperands); | |
8024 | output_asm_insn ("stw %%r2,-24(%%sp)", xoperands); | |
16b068df | 8025 | seq_length = 1; |
ece88821 | 8026 | } |
8027 | else | |
8028 | output_asm_insn ("bve,l (%%r1),%%r2", xoperands); | |
8029 | } | |
5e3c5739 | 8030 | } |
8031 | else | |
8032 | { | |
226f6453 | 8033 | if (!TARGET_NO_SPACE_REGS && (!local_call || flag_pic)) |
ee376abe | 8034 | output_asm_insn ("ldsid (%%r1),%%r31\n\tmtsp %%r31,%%sr0", |
8035 | xoperands); | |
06ddb6f8 | 8036 | |
ece88821 | 8037 | if (sibcall) |
ee376abe | 8038 | { |
226f6453 | 8039 | if (TARGET_NO_SPACE_REGS || (local_call && !flag_pic)) |
ee376abe | 8040 | output_asm_insn ("be 0(%%sr4,%%r1)", xoperands); |
8041 | else | |
8042 | output_asm_insn ("be 0(%%sr0,%%r1)", xoperands); | |
8043 | } | |
ece88821 | 8044 | else |
8045 | { | |
226f6453 | 8046 | if (TARGET_NO_SPACE_REGS || (local_call && !flag_pic)) |
ee376abe | 8047 | output_asm_insn ("ble 0(%%sr4,%%r1)", xoperands); |
8048 | else | |
8049 | output_asm_insn ("ble 0(%%sr0,%%r1)", xoperands); | |
06ddb6f8 | 8050 | |
ece88821 | 8051 | if (indirect_call) |
8052 | output_asm_insn ("stw %%r31,-24(%%sp)", xoperands); | |
8053 | else | |
8054 | output_asm_insn ("copy %%r31,%%r2", xoperands); | |
16b068df | 8055 | seq_length = 1; |
ece88821 | 8056 | } |
8057 | } | |
8058 | } | |
06ddb6f8 | 8059 | } |
d6686e21 | 8060 | } |
6d36483b | 8061 | |
16b068df | 8062 | if (seq_length == 0) |
ece88821 | 8063 | output_asm_insn ("nop", xoperands); |
d6686e21 | 8064 | |
d6686e21 | 8065 | return ""; |
8066 | } | |
8067 | ||
cd0dfcc5 | 8068 | /* Return the attribute length of the indirect call instruction INSN. |
8069 | The length must match the code generated by output_indirect call. | |
8070 | The returned length includes the delay slot. Currently, the delay | |
8071 | slot of an indirect call sequence is not exposed and it is used by | |
8072 | the sequence itself. */ | |
8073 | ||
8074 | int | |
8443f305 | 8075 | pa_attr_length_indirect_call (rtx_insn *insn) |
cd0dfcc5 | 8076 | { |
8077 | unsigned long distance = -1; | |
8a05c3c2 | 8078 | unsigned long total = IN_NAMED_SECTION_P (cfun->decl) ? 0 : total_code_bytes; |
cd0dfcc5 | 8079 | |
8080 | if (INSN_ADDRESSES_SET_P ()) | |
8081 | { | |
2247cc5f | 8082 | distance = (total + insn_current_reference_address (insn)); |
8083 | if (distance < total) | |
cd0dfcc5 | 8084 | distance = -1; |
8085 | } | |
8086 | ||
8087 | if (TARGET_64BIT) | |
8088 | return 12; | |
8089 | ||
8090 | if (TARGET_FAST_INDIRECT_CALLS | |
fc787388 | 8091 | || (!TARGET_LONG_CALLS |
8092 | && !TARGET_PORTABLE_RUNTIME | |
5925d47a | 8093 | && ((TARGET_PA_20 && !TARGET_SOM && distance < 7600000) |
4f12c67a | 8094 | || distance < MAX_PCREL17F_OFFSET))) |
cd0dfcc5 | 8095 | return 8; |
8096 | ||
8097 | if (flag_pic) | |
1688a966 | 8098 | return 20; |
cd0dfcc5 | 8099 | |
8100 | if (TARGET_PORTABLE_RUNTIME) | |
1688a966 | 8101 | return 16; |
cd0dfcc5 | 8102 | |
8103 | /* Out of reach, can use ble. */ | |
8104 | return 12; | |
8105 | } | |
8106 | ||
8107 | const char * | |
8443f305 | 8108 | pa_output_indirect_call (rtx_insn *insn, rtx call_dest) |
cd0dfcc5 | 8109 | { |
8110 | rtx xoperands[1]; | |
8111 | ||
8112 | if (TARGET_64BIT) | |
8113 | { | |
8114 | xoperands[0] = call_dest; | |
8115 | output_asm_insn ("ldd 16(%0),%%r2", xoperands); | |
8116 | output_asm_insn ("bve,l (%%r2),%%r2\n\tldd 24(%0),%%r27", xoperands); | |
8117 | return ""; | |
8118 | } | |
8119 | ||
8120 | /* First the special case for kernels, level 0 systems, etc. */ | |
8121 | if (TARGET_FAST_INDIRECT_CALLS) | |
8122 | return "ble 0(%%sr4,%%r22)\n\tcopy %%r31,%%r2"; | |
8123 | ||
8124 | /* Now the normal case -- we can reach $$dyncall directly or | |
8125 | we're sure that we can get there via a long-branch stub. | |
8126 | ||
8127 | No need to check target flags as the length uniquely identifies | |
8128 | the remaining cases. */ | |
e202682d | 8129 | if (pa_attr_length_indirect_call (insn) == 8) |
f707acb9 | 8130 | { |
5925d47a | 8131 | /* The HP linker sometimes substitutes a BLE for BL/B,L calls to |
8132 | $$dyncall. Since BLE uses %r31 as the link register, the 22-bit | |
8133 | variant of the B,L instruction can't be used on the SOM target. */ | |
8134 | if (TARGET_PA_20 && !TARGET_SOM) | |
f707acb9 | 8135 | return ".CALL\tARGW0=GR\n\tb,l $$dyncall,%%r2\n\tcopy %%r2,%%r31"; |
8136 | else | |
8137 | return ".CALL\tARGW0=GR\n\tbl $$dyncall,%%r31\n\tcopy %%r31,%%r2"; | |
8138 | } | |
cd0dfcc5 | 8139 | |
8140 | /* Long millicode call, but we are not generating PIC or portable runtime | |
8141 | code. */ | |
e202682d | 8142 | if (pa_attr_length_indirect_call (insn) == 12) |
cd0dfcc5 | 8143 | return ".CALL\tARGW0=GR\n\tldil L'$$dyncall,%%r2\n\tble R'$$dyncall(%%sr4,%%r2)\n\tcopy %%r31,%%r2"; |
8144 | ||
8145 | /* Long millicode call for portable runtime. */ | |
1688a966 | 8146 | if (pa_attr_length_indirect_call (insn) == 16) |
8147 | return "ldil L'$$dyncall,%%r31\n\tldo R'$$dyncall(%%r31),%%r31\n\tblr %%r0,%%r2\n\tbv,n %%r0(%%r31)"; | |
cd0dfcc5 | 8148 | |
8149 | /* We need a long PIC call to $$dyncall. */ | |
8150 | xoperands[0] = NULL_RTX; | |
1688a966 | 8151 | output_asm_insn ("{bl|b,l} .+8,%%r2", xoperands); |
cd0dfcc5 | 8152 | if (TARGET_SOM || !TARGET_GAS) |
8153 | { | |
8154 | xoperands[0] = gen_label_rtx (); | |
1688a966 | 8155 | output_asm_insn ("addil L'$$dyncall-%0,%%r2", xoperands); |
c5559ed4 | 8156 | targetm.asm_out.internal_label (asm_out_file, "L", |
8157 | CODE_LABEL_NUMBER (xoperands[0])); | |
cd0dfcc5 | 8158 | output_asm_insn ("ldo R'$$dyncall-%0(%%r1),%%r1", xoperands); |
8159 | } | |
8160 | else | |
8161 | { | |
1688a966 | 8162 | output_asm_insn ("addil L'$$dyncall-$PIC_pcrel$0+4,%%r2", xoperands); |
cd0dfcc5 | 8163 | output_asm_insn ("ldo R'$$dyncall-$PIC_pcrel$0+8(%%r1),%%r1", |
8164 | xoperands); | |
8165 | } | |
1688a966 | 8166 | output_asm_insn ("bv %%r0(%%r1)", xoperands); |
8167 | output_asm_insn ("ldo 12(%%r2),%%r2", xoperands); | |
cd0dfcc5 | 8168 | return ""; |
8169 | } | |
8170 | ||
d6f01525 | 8171 | /* In HPUX 8.0's shared library scheme, special relocations are needed |
6d36483b | 8172 | for function labels if they might be passed to a function |
d6f01525 | 8173 | in a shared library (because shared libraries don't live in code |
44acf429 | 8174 | space), and special magic is needed to construct their address. */ |
d6f01525 | 8175 | |
8176 | void | |
e202682d | 8177 | pa_encode_label (rtx sym) |
d6f01525 | 8178 | { |
611a88e1 | 8179 | const char *str = XSTR (sym, 0); |
cccfb31e | 8180 | int len = strlen (str) + 1; |
8181 | char *newstr, *p; | |
d6f01525 | 8182 | |
225ab426 | 8183 | p = newstr = XALLOCAVEC (char, len + 1); |
cccfb31e | 8184 | *p++ = '@'; |
8185 | strcpy (p, str); | |
74d80a9a | 8186 | |
ea52c577 | 8187 | XSTR (sym, 0) = ggc_alloc_string (newstr, len); |
d6f01525 | 8188 | } |
6d36483b | 8189 | |
7811991d | 8190 | static void |
5c1d8983 | 8191 | pa_encode_section_info (tree decl, rtx rtl, int first) |
7811991d | 8192 | { |
54d7a10c | 8193 | int old_referenced = 0; |
8194 | ||
8195 | if (!first && MEM_P (rtl) && GET_CODE (XEXP (rtl, 0)) == SYMBOL_REF) | |
8196 | old_referenced | |
8197 | = SYMBOL_REF_FLAGS (XEXP (rtl, 0)) & SYMBOL_FLAG_REFERENCED; | |
8198 | ||
716b2c5a | 8199 | default_encode_section_info (decl, rtl, first); |
8200 | ||
7811991d | 8201 | if (first && TEXT_SPACE_P (decl)) |
8202 | { | |
7811991d | 8203 | SYMBOL_REF_FLAG (XEXP (rtl, 0)) = 1; |
8204 | if (TREE_CODE (decl) == FUNCTION_DECL) | |
e202682d | 8205 | pa_encode_label (XEXP (rtl, 0)); |
7811991d | 8206 | } |
54d7a10c | 8207 | else if (old_referenced) |
8208 | SYMBOL_REF_FLAGS (XEXP (rtl, 0)) |= old_referenced; | |
7811991d | 8209 | } |
8210 | ||
7b4a38a6 | 8211 | /* This is sort of inverse to pa_encode_section_info. */ |
8212 | ||
8213 | static const char * | |
5c1d8983 | 8214 | pa_strip_name_encoding (const char *str) |
7b4a38a6 | 8215 | { |
c0264367 | 8216 | str += (*str == '@'); |
8217 | str += (*str == '*'); | |
8218 | return str; | |
7b4a38a6 | 8219 | } |
8220 | ||
166bf021 | 8221 | /* Returns 1 if OP is a function label involved in a simple addition |
8222 | with a constant. Used to keep certain patterns from matching | |
8223 | during instruction combination. */ | |
8224 | int | |
e202682d | 8225 | pa_is_function_label_plus_const (rtx op) |
166bf021 | 8226 | { |
8227 | /* Strip off any CONST. */ | |
8228 | if (GET_CODE (op) == CONST) | |
8229 | op = XEXP (op, 0); | |
8230 | ||
8231 | return (GET_CODE (op) == PLUS | |
39ec41d4 | 8232 | && function_label_operand (XEXP (op, 0), VOIDmode) |
166bf021 | 8233 | && GET_CODE (XEXP (op, 1)) == CONST_INT); |
8234 | } | |
8235 | ||
f1752b7e | 8236 | /* Output assembly code for a thunk to FUNCTION. */ |
8237 | ||
6988553d | 8238 | static void |
5c1d8983 | 8239 | pa_asm_output_mi_thunk (FILE *file, tree thunk_fndecl, HOST_WIDE_INT delta, |
8240 | HOST_WIDE_INT vcall_offset ATTRIBUTE_UNUSED, | |
8241 | tree function) | |
f1752b7e | 8242 | { |
e678758c | 8243 | static unsigned int current_thunk_number; |
2247cc5f | 8244 | int val_14 = VAL_14_BITS_P (delta); |
21a47bc9 | 8245 | unsigned int old_last_address = last_address, nbytes = 0; |
f1752b7e | 8246 | char label[16]; |
e678758c | 8247 | rtx xoperands[4]; |
2247cc5f | 8248 | |
e678758c | 8249 | xoperands[0] = XEXP (DECL_RTL (function), 0); |
8250 | xoperands[1] = XEXP (DECL_RTL (thunk_fndecl), 0); | |
8251 | xoperands[2] = GEN_INT (delta); | |
2247cc5f | 8252 | |
be85a9c4 | 8253 | final_start_function (emit_barrier (), file, 1); |
2247cc5f | 8254 | |
8255 | /* Output the thunk. We know that the function is in the same | |
8256 | translation unit (i.e., the same space) as the thunk, and that | |
8257 | thunks are output after their method. Thus, we don't need an | |
8258 | external branch to reach the function. With SOM and GAS, | |
8259 | functions and thunks are effectively in different sections. | |
8260 | Thus, we can always use a IA-relative branch and the linker | |
8261 | will add a long branch stub if necessary. | |
8262 | ||
8263 | However, we have to be careful when generating PIC code on the | |
8264 | SOM port to ensure that the sequence does not transfer to an | |
8265 | import stub for the target function as this could clobber the | |
8266 | return value saved at SP-24. This would also apply to the | |
8267 | 32-bit linux port if the multi-space model is implemented. */ | |
8268 | if ((!TARGET_LONG_CALLS && TARGET_SOM && !TARGET_PORTABLE_RUNTIME | |
8269 | && !(flag_pic && TREE_PUBLIC (function)) | |
8270 | && (TARGET_GAS || last_address < 262132)) | |
8271 | || (!TARGET_LONG_CALLS && !TARGET_SOM && !TARGET_PORTABLE_RUNTIME | |
218e3e4e | 8272 | && ((targetm_common.have_named_sections |
2247cc5f | 8273 | && DECL_SECTION_NAME (thunk_fndecl) != NULL |
8274 | /* The GNU 64-bit linker has rather poor stub management. | |
8275 | So, we use a long branch from thunks that aren't in | |
8276 | the same section as the target function. */ | |
8277 | && ((!TARGET_64BIT | |
8278 | && (DECL_SECTION_NAME (thunk_fndecl) | |
8279 | != DECL_SECTION_NAME (function))) | |
8280 | || ((DECL_SECTION_NAME (thunk_fndecl) | |
8281 | == DECL_SECTION_NAME (function)) | |
8282 | && last_address < 262132))) | |
4805aa90 | 8283 | /* In this case, we need to be able to reach the start of |
8284 | the stub table even though the function is likely closer | |
8285 | and can be jumped to directly. */ | |
218e3e4e | 8286 | || (targetm_common.have_named_sections |
55e0e460 | 8287 | && DECL_SECTION_NAME (thunk_fndecl) == NULL |
8288 | && DECL_SECTION_NAME (function) == NULL | |
4805aa90 | 8289 | && total_code_bytes < MAX_PCREL17F_OFFSET) |
8290 | /* Likewise. */ | |
218e3e4e | 8291 | || (!targetm_common.have_named_sections |
4805aa90 | 8292 | && total_code_bytes < MAX_PCREL17F_OFFSET)))) |
2247cc5f | 8293 | { |
e678758c | 8294 | if (!val_14) |
8295 | output_asm_insn ("addil L'%2,%%r26", xoperands); | |
8296 | ||
6a90621a | 8297 | output_asm_insn ("b %0", xoperands); |
e678758c | 8298 | |
2247cc5f | 8299 | if (val_14) |
8300 | { | |
e678758c | 8301 | output_asm_insn ("ldo %2(%%r26),%%r26", xoperands); |
2247cc5f | 8302 | nbytes += 8; |
8303 | } | |
8304 | else | |
8305 | { | |
e678758c | 8306 | output_asm_insn ("ldo R'%2(%%r1),%%r26", xoperands); |
2247cc5f | 8307 | nbytes += 12; |
8308 | } | |
8309 | } | |
8310 | else if (TARGET_64BIT) | |
8311 | { | |
8312 | /* We only have one call-clobbered scratch register, so we can't | |
8313 | make use of the delay slot if delta doesn't fit in 14 bits. */ | |
8314 | if (!val_14) | |
e678758c | 8315 | { |
8316 | output_asm_insn ("addil L'%2,%%r26", xoperands); | |
8317 | output_asm_insn ("ldo R'%2(%%r1),%%r26", xoperands); | |
8318 | } | |
2247cc5f | 8319 | |
e678758c | 8320 | output_asm_insn ("b,l .+8,%%r1", xoperands); |
2247cc5f | 8321 | |
8322 | if (TARGET_GAS) | |
8323 | { | |
e678758c | 8324 | output_asm_insn ("addil L'%0-$PIC_pcrel$0+4,%%r1", xoperands); |
8325 | output_asm_insn ("ldo R'%0-$PIC_pcrel$0+8(%%r1),%%r1", xoperands); | |
2247cc5f | 8326 | } |
8327 | else | |
8328 | { | |
e678758c | 8329 | xoperands[3] = GEN_INT (val_14 ? 8 : 16); |
8330 | output_asm_insn ("addil L'%0-%1-%3,%%r1", xoperands); | |
2247cc5f | 8331 | } |
8332 | ||
8333 | if (val_14) | |
8334 | { | |
e678758c | 8335 | output_asm_insn ("bv %%r0(%%r1)", xoperands); |
8336 | output_asm_insn ("ldo %2(%%r26),%%r26", xoperands); | |
2247cc5f | 8337 | nbytes += 20; |
8338 | } | |
8339 | else | |
8340 | { | |
e678758c | 8341 | output_asm_insn ("bv,n %%r0(%%r1)", xoperands); |
2247cc5f | 8342 | nbytes += 24; |
8343 | } | |
8344 | } | |
8345 | else if (TARGET_PORTABLE_RUNTIME) | |
8346 | { | |
e678758c | 8347 | output_asm_insn ("ldil L'%0,%%r1", xoperands); |
8348 | output_asm_insn ("ldo R'%0(%%r1),%%r22", xoperands); | |
8349 | ||
8350 | if (!val_14) | |
8351 | output_asm_insn ("addil L'%2,%%r26", xoperands); | |
8352 | ||
8353 | output_asm_insn ("bv %%r0(%%r22)", xoperands); | |
2247cc5f | 8354 | |
8355 | if (val_14) | |
8356 | { | |
e678758c | 8357 | output_asm_insn ("ldo %2(%%r26),%%r26", xoperands); |
2247cc5f | 8358 | nbytes += 16; |
8359 | } | |
8360 | else | |
8361 | { | |
e678758c | 8362 | output_asm_insn ("ldo R'%2(%%r1),%%r26", xoperands); |
2247cc5f | 8363 | nbytes += 20; |
8364 | } | |
8365 | } | |
8366 | else if (TARGET_SOM && flag_pic && TREE_PUBLIC (function)) | |
8367 | { | |
8368 | /* The function is accessible from outside this module. The only | |
8369 | way to avoid an import stub between the thunk and function is to | |
8370 | call the function directly with an indirect sequence similar to | |
8371 | that used by $$dyncall. This is possible because $$dyncall acts | |
8372 | as the import stub in an indirect call. */ | |
2247cc5f | 8373 | ASM_GENERATE_INTERNAL_LABEL (label, "LTHN", current_thunk_number); |
e678758c | 8374 | xoperands[3] = gen_rtx_SYMBOL_REF (Pmode, label); |
8375 | output_asm_insn ("addil LT'%3,%%r19", xoperands); | |
8376 | output_asm_insn ("ldw RT'%3(%%r1),%%r22", xoperands); | |
8377 | output_asm_insn ("ldw 0(%%sr0,%%r22),%%r22", xoperands); | |
8378 | output_asm_insn ("bb,>=,n %%r22,30,.+16", xoperands); | |
8379 | output_asm_insn ("depi 0,31,2,%%r22", xoperands); | |
8380 | output_asm_insn ("ldw 4(%%sr0,%%r22),%%r19", xoperands); | |
8381 | output_asm_insn ("ldw 0(%%sr0,%%r22),%%r22", xoperands); | |
8382 | ||
2247cc5f | 8383 | if (!val_14) |
8384 | { | |
e678758c | 8385 | output_asm_insn ("addil L'%2,%%r26", xoperands); |
2247cc5f | 8386 | nbytes += 4; |
8387 | } | |
e678758c | 8388 | |
2247cc5f | 8389 | if (TARGET_PA_20) |
8390 | { | |
e678758c | 8391 | output_asm_insn ("bve (%%r22)", xoperands); |
8392 | nbytes += 36; | |
8393 | } | |
8394 | else if (TARGET_NO_SPACE_REGS) | |
8395 | { | |
8396 | output_asm_insn ("be 0(%%sr4,%%r22)", xoperands); | |
2247cc5f | 8397 | nbytes += 36; |
8398 | } | |
8399 | else | |
f1752b7e | 8400 | { |
e678758c | 8401 | output_asm_insn ("ldsid (%%sr0,%%r22),%%r21", xoperands); |
8402 | output_asm_insn ("mtsp %%r21,%%sr0", xoperands); | |
8403 | output_asm_insn ("be 0(%%sr0,%%r22)", xoperands); | |
8404 | nbytes += 44; | |
2247cc5f | 8405 | } |
8406 | ||
8407 | if (val_14) | |
e678758c | 8408 | output_asm_insn ("ldo %2(%%r26),%%r26", xoperands); |
2247cc5f | 8409 | else |
e678758c | 8410 | output_asm_insn ("ldo R'%2(%%r1),%%r26", xoperands); |
2247cc5f | 8411 | } |
8412 | else if (flag_pic) | |
8413 | { | |
e678758c | 8414 | output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands); |
2247cc5f | 8415 | |
8416 | if (TARGET_SOM || !TARGET_GAS) | |
8417 | { | |
e678758c | 8418 | output_asm_insn ("addil L'%0-%1-8,%%r1", xoperands); |
8419 | output_asm_insn ("ldo R'%0-%1-8(%%r1),%%r22", xoperands); | |
2247cc5f | 8420 | } |
8421 | else | |
8422 | { | |
e678758c | 8423 | output_asm_insn ("addil L'%0-$PIC_pcrel$0+4,%%r1", xoperands); |
8424 | output_asm_insn ("ldo R'%0-$PIC_pcrel$0+8(%%r1),%%r22", xoperands); | |
2247cc5f | 8425 | } |
8426 | ||
e678758c | 8427 | if (!val_14) |
8428 | output_asm_insn ("addil L'%2,%%r26", xoperands); | |
8429 | ||
8430 | output_asm_insn ("bv %%r0(%%r22)", xoperands); | |
8431 | ||
2247cc5f | 8432 | if (val_14) |
8433 | { | |
e678758c | 8434 | output_asm_insn ("ldo %2(%%r26),%%r26", xoperands); |
2247cc5f | 8435 | nbytes += 20; |
f1752b7e | 8436 | } |
8437 | else | |
2247cc5f | 8438 | { |
e678758c | 8439 | output_asm_insn ("ldo R'%2(%%r1),%%r26", xoperands); |
2247cc5f | 8440 | nbytes += 24; |
8441 | } | |
f1752b7e | 8442 | } |
8443 | else | |
8444 | { | |
2247cc5f | 8445 | if (!val_14) |
e678758c | 8446 | output_asm_insn ("addil L'%2,%%r26", xoperands); |
2247cc5f | 8447 | |
e678758c | 8448 | output_asm_insn ("ldil L'%0,%%r22", xoperands); |
8449 | output_asm_insn ("be R'%0(%%sr4,%%r22)", xoperands); | |
2247cc5f | 8450 | |
8451 | if (val_14) | |
f1752b7e | 8452 | { |
e678758c | 8453 | output_asm_insn ("ldo %2(%%r26),%%r26", xoperands); |
2247cc5f | 8454 | nbytes += 12; |
f1752b7e | 8455 | } |
8456 | else | |
2247cc5f | 8457 | { |
e678758c | 8458 | output_asm_insn ("ldo R'%2(%%r1),%%r26", xoperands); |
2247cc5f | 8459 | nbytes += 16; |
8460 | } | |
f1752b7e | 8461 | } |
2247cc5f | 8462 | |
be85a9c4 | 8463 | final_end_function (); |
78962d38 | 8464 | |
2247cc5f | 8465 | if (TARGET_SOM && flag_pic && TREE_PUBLIC (function)) |
f1752b7e | 8466 | { |
2f14b1f9 | 8467 | switch_to_section (data_section); |
e678758c | 8468 | output_asm_insn (".align 4", xoperands); |
2247cc5f | 8469 | ASM_OUTPUT_LABEL (file, label); |
e678758c | 8470 | output_asm_insn (".word P'%0", xoperands); |
f1752b7e | 8471 | } |
2247cc5f | 8472 | |
f1752b7e | 8473 | current_thunk_number++; |
2247cc5f | 8474 | nbytes = ((nbytes + FUNCTION_BOUNDARY / BITS_PER_UNIT - 1) |
8475 | & ~(FUNCTION_BOUNDARY / BITS_PER_UNIT - 1)); | |
8476 | last_address += nbytes; | |
21a47bc9 | 8477 | if (old_last_address > last_address) |
8478 | last_address = UINT_MAX; | |
2247cc5f | 8479 | update_total_code_bytes (nbytes); |
f1752b7e | 8480 | } |
8481 | ||
805e22b2 | 8482 | /* Only direct calls to static functions are allowed to be sibling (tail) |
8483 | call optimized. | |
8484 | ||
8485 | This restriction is necessary because some linker generated stubs will | |
8486 | store return pointers into rp' in some cases which might clobber a | |
8487 | live value already in rp'. | |
8488 | ||
8489 | In a sibcall the current function and the target function share stack | |
8490 | space. Thus if the path to the current function and the path to the | |
8491 | target function save a value in rp', they save the value into the | |
8492 | same stack slot, which has undesirable consequences. | |
8493 | ||
8494 | Because of the deferred binding nature of shared libraries any function | |
8495 | with external scope could be in a different load module and thus require | |
8496 | rp' to be saved when calling that function. So sibcall optimizations | |
8497 | can only be safe for static function. | |
8498 | ||
8499 | Note that GCC never needs return value relocations, so we don't have to | |
8500 | worry about static calls with return value relocations (which require | |
8501 | saving rp'). | |
8502 | ||
8503 | It is safe to perform a sibcall optimization when the target function | |
8504 | will never return. */ | |
8505 | static bool | |
5c1d8983 | 8506 | pa_function_ok_for_sibcall (tree decl, tree exp ATTRIBUTE_UNUSED) |
805e22b2 | 8507 | { |
e11e9ae3 | 8508 | if (TARGET_PORTABLE_RUNTIME) |
8509 | return false; | |
8510 | ||
f62b73b6 | 8511 | /* Sibcalls are not ok because the arg pointer register is not a fixed |
2cecd772 | 8512 | register. This prevents the sibcall optimization from occurring. In |
f62b73b6 | 8513 | addition, there are problems with stub placement using GNU ld. This |
8514 | is because a normal sibcall branch uses a 17-bit relocation while | |
8515 | a regular call branch uses a 22-bit relocation. As a result, more | |
8516 | care needs to be taken in the placement of long-branch stubs. */ | |
8517 | if (TARGET_64BIT) | |
8518 | return false; | |
8519 | ||
e11e9ae3 | 8520 | /* Sibcalls are only ok within a translation unit. */ |
8521 | return (decl && !TREE_PUBLIC (decl)); | |
805e22b2 | 8522 | } |
8523 | ||
280566a7 | 8524 | /* ??? Addition is not commutative on the PA due to the weird implicit |
8525 | space register selection rules for memory addresses. Therefore, we | |
8526 | don't consider a + b == b + a, as this might be inside a MEM. */ | |
8527 | static bool | |
a9f1838b | 8528 | pa_commutative_p (const_rtx x, int outer_code) |
280566a7 | 8529 | { |
8530 | return (COMMUTATIVE_P (x) | |
55e3fa6d | 8531 | && (TARGET_NO_SPACE_REGS |
8532 | || (outer_code != UNKNOWN && outer_code != MEM) | |
280566a7 | 8533 | || GET_CODE (x) != PLUS)); |
8534 | } | |
8535 | ||
37580c80 | 8536 | /* Returns 1 if the 6 operands specified in OPERANDS are suitable for |
8537 | use in fmpyadd instructions. */ | |
4ed6ee50 | 8538 | int |
e202682d | 8539 | pa_fmpyaddoperands (rtx *operands) |
4ed6ee50 | 8540 | { |
3754d046 | 8541 | machine_mode mode = GET_MODE (operands[0]); |
4ed6ee50 | 8542 | |
ab449421 | 8543 | /* Must be a floating point mode. */ |
8544 | if (mode != SFmode && mode != DFmode) | |
8545 | return 0; | |
8546 | ||
4ed6ee50 | 8547 | /* All modes must be the same. */ |
201f01e9 | 8548 | if (! (mode == GET_MODE (operands[1]) |
8549 | && mode == GET_MODE (operands[2]) | |
8550 | && mode == GET_MODE (operands[3]) | |
8551 | && mode == GET_MODE (operands[4]) | |
8552 | && mode == GET_MODE (operands[5]))) | |
4ed6ee50 | 8553 | return 0; |
8554 | ||
ab449421 | 8555 | /* All operands must be registers. */ |
8556 | if (! (GET_CODE (operands[1]) == REG | |
8557 | && GET_CODE (operands[2]) == REG | |
8558 | && GET_CODE (operands[3]) == REG | |
8559 | && GET_CODE (operands[4]) == REG | |
8560 | && GET_CODE (operands[5]) == REG)) | |
4ed6ee50 | 8561 | return 0; |
8562 | ||
37580c80 | 8563 | /* Only 2 real operands to the addition. One of the input operands must |
8564 | be the same as the output operand. */ | |
4ed6ee50 | 8565 | if (! rtx_equal_p (operands[3], operands[4]) |
8566 | && ! rtx_equal_p (operands[3], operands[5])) | |
8567 | return 0; | |
8568 | ||
33f88b1c | 8569 | /* Inout operand of add cannot conflict with any operands from multiply. */ |
4ed6ee50 | 8570 | if (rtx_equal_p (operands[3], operands[0]) |
8571 | || rtx_equal_p (operands[3], operands[1]) | |
8572 | || rtx_equal_p (operands[3], operands[2])) | |
8573 | return 0; | |
8574 | ||
33f88b1c | 8575 | /* multiply cannot feed into addition operands. */ |
4ed6ee50 | 8576 | if (rtx_equal_p (operands[4], operands[0]) |
8577 | || rtx_equal_p (operands[5], operands[0])) | |
8578 | return 0; | |
8579 | ||
ab449421 | 8580 | /* SFmode limits the registers to the upper 32 of the 32bit FP regs. */ |
8581 | if (mode == SFmode | |
bac38c40 | 8582 | && (REGNO_REG_CLASS (REGNO (operands[0])) != FPUPPER_REGS |
8583 | || REGNO_REG_CLASS (REGNO (operands[1])) != FPUPPER_REGS | |
8584 | || REGNO_REG_CLASS (REGNO (operands[2])) != FPUPPER_REGS | |
8585 | || REGNO_REG_CLASS (REGNO (operands[3])) != FPUPPER_REGS | |
8586 | || REGNO_REG_CLASS (REGNO (operands[4])) != FPUPPER_REGS | |
8587 | || REGNO_REG_CLASS (REGNO (operands[5])) != FPUPPER_REGS)) | |
ab449421 | 8588 | return 0; |
8589 | ||
4ed6ee50 | 8590 | /* Passed. Operands are suitable for fmpyadd. */ |
8591 | return 1; | |
8592 | } | |
8593 | ||
de419443 | 8594 | #if !defined(USE_COLLECT2) |
8595 | static void | |
5c1d8983 | 8596 | pa_asm_out_constructor (rtx symbol, int priority) |
de419443 | 8597 | { |
8598 | if (!function_label_operand (symbol, VOIDmode)) | |
e202682d | 8599 | pa_encode_label (symbol); |
de419443 | 8600 | |
8601 | #ifdef CTORS_SECTION_ASM_OP | |
8602 | default_ctor_section_asm_out_constructor (symbol, priority); | |
8603 | #else | |
8604 | # ifdef TARGET_ASM_NAMED_SECTION | |
8605 | default_named_section_asm_out_constructor (symbol, priority); | |
8606 | # else | |
8607 | default_stabs_asm_out_constructor (symbol, priority); | |
8608 | # endif | |
8609 | #endif | |
8610 | } | |
8611 | ||
8612 | static void | |
5c1d8983 | 8613 | pa_asm_out_destructor (rtx symbol, int priority) |
de419443 | 8614 | { |
8615 | if (!function_label_operand (symbol, VOIDmode)) | |
e202682d | 8616 | pa_encode_label (symbol); |
de419443 | 8617 | |
8618 | #ifdef DTORS_SECTION_ASM_OP | |
8619 | default_dtor_section_asm_out_destructor (symbol, priority); | |
8620 | #else | |
8621 | # ifdef TARGET_ASM_NAMED_SECTION | |
8622 | default_named_section_asm_out_destructor (symbol, priority); | |
8623 | # else | |
8624 | default_stabs_asm_out_destructor (symbol, priority); | |
8625 | # endif | |
8626 | #endif | |
8627 | } | |
8628 | #endif | |
8629 | ||
ff59d376 | 8630 | /* This function places uninitialized global data in the bss section. |
8631 | The ASM_OUTPUT_ALIGNED_BSS macro needs to be defined to call this | |
8632 | function on the SOM port to prevent uninitialized global data from | |
8633 | being placed in the data section. */ | |
8634 | ||
8635 | void | |
8636 | pa_asm_output_aligned_bss (FILE *stream, | |
8637 | const char *name, | |
8638 | unsigned HOST_WIDE_INT size, | |
8639 | unsigned int align) | |
8640 | { | |
2f14b1f9 | 8641 | switch_to_section (bss_section); |
ff59d376 | 8642 | fprintf (stream, "\t.align %u\n", align / BITS_PER_UNIT); |
8643 | ||
8644 | #ifdef ASM_OUTPUT_TYPE_DIRECTIVE | |
8645 | ASM_OUTPUT_TYPE_DIRECTIVE (stream, name, "object"); | |
8646 | #endif | |
8647 | ||
8648 | #ifdef ASM_OUTPUT_SIZE_DIRECTIVE | |
8649 | ASM_OUTPUT_SIZE_DIRECTIVE (stream, name, size); | |
8650 | #endif | |
8651 | ||
8652 | fprintf (stream, "\t.align %u\n", align / BITS_PER_UNIT); | |
8653 | ASM_OUTPUT_LABEL (stream, name); | |
f03df321 | 8654 | fprintf (stream, "\t.block " HOST_WIDE_INT_PRINT_UNSIGNED"\n", size); |
ff59d376 | 8655 | } |
8656 | ||
8657 | /* Both the HP and GNU assemblers under HP-UX provide a .comm directive | |
8658 | that doesn't allow the alignment of global common storage to be directly | |
8659 | specified. The SOM linker aligns common storage based on the rounded | |
8660 | value of the NUM_BYTES parameter in the .comm directive. It's not | |
8661 | possible to use the .align directive as it doesn't affect the alignment | |
8662 | of the label associated with a .comm directive. */ | |
8663 | ||
8664 | void | |
8665 | pa_asm_output_aligned_common (FILE *stream, | |
8666 | const char *name, | |
8667 | unsigned HOST_WIDE_INT size, | |
8668 | unsigned int align) | |
8669 | { | |
33cd7888 | 8670 | unsigned int max_common_align; |
8671 | ||
8672 | max_common_align = TARGET_64BIT ? 128 : (size >= 4096 ? 256 : 64); | |
8673 | if (align > max_common_align) | |
8674 | { | |
c3ceba8e | 8675 | warning (0, "alignment (%u) for %s exceeds maximum alignment " |
33cd7888 | 8676 | "for global common data. Using %u", |
8677 | align / BITS_PER_UNIT, name, max_common_align / BITS_PER_UNIT); | |
8678 | align = max_common_align; | |
8679 | } | |
8680 | ||
2f14b1f9 | 8681 | switch_to_section (bss_section); |
ff59d376 | 8682 | |
8683 | assemble_name (stream, name); | |
f03df321 | 8684 | fprintf (stream, "\t.comm " HOST_WIDE_INT_PRINT_UNSIGNED"\n", |
ff59d376 | 8685 | MAX (size, align / BITS_PER_UNIT)); |
8686 | } | |
8687 | ||
8688 | /* We can't use .comm for local common storage as the SOM linker effectively | |
8689 | treats the symbol as universal and uses the same storage for local symbols | |
8690 | with the same name in different object files. The .block directive | |
8691 | reserves an uninitialized block of storage. However, it's not common | |
8692 | storage. Fortunately, GCC never requests common storage with the same | |
8693 | name in any given translation unit. */ | |
8694 | ||
8695 | void | |
8696 | pa_asm_output_aligned_local (FILE *stream, | |
8697 | const char *name, | |
8698 | unsigned HOST_WIDE_INT size, | |
8699 | unsigned int align) | |
8700 | { | |
2f14b1f9 | 8701 | switch_to_section (bss_section); |
ff59d376 | 8702 | fprintf (stream, "\t.align %u\n", align / BITS_PER_UNIT); |
8703 | ||
8704 | #ifdef LOCAL_ASM_OP | |
8705 | fprintf (stream, "%s", LOCAL_ASM_OP); | |
8706 | assemble_name (stream, name); | |
8707 | fprintf (stream, "\n"); | |
8708 | #endif | |
8709 | ||
8710 | ASM_OUTPUT_LABEL (stream, name); | |
f03df321 | 8711 | fprintf (stream, "\t.block " HOST_WIDE_INT_PRINT_UNSIGNED"\n", size); |
ff59d376 | 8712 | } |
8713 | ||
37580c80 | 8714 | /* Returns 1 if the 6 operands specified in OPERANDS are suitable for |
8715 | use in fmpysub instructions. */ | |
4ed6ee50 | 8716 | int |
e202682d | 8717 | pa_fmpysuboperands (rtx *operands) |
4ed6ee50 | 8718 | { |
3754d046 | 8719 | machine_mode mode = GET_MODE (operands[0]); |
4ed6ee50 | 8720 | |
ab449421 | 8721 | /* Must be a floating point mode. */ |
8722 | if (mode != SFmode && mode != DFmode) | |
8723 | return 0; | |
8724 | ||
4ed6ee50 | 8725 | /* All modes must be the same. */ |
201f01e9 | 8726 | if (! (mode == GET_MODE (operands[1]) |
8727 | && mode == GET_MODE (operands[2]) | |
8728 | && mode == GET_MODE (operands[3]) | |
8729 | && mode == GET_MODE (operands[4]) | |
8730 | && mode == GET_MODE (operands[5]))) | |
4ed6ee50 | 8731 | return 0; |
8732 | ||
ab449421 | 8733 | /* All operands must be registers. */ |
8734 | if (! (GET_CODE (operands[1]) == REG | |
8735 | && GET_CODE (operands[2]) == REG | |
8736 | && GET_CODE (operands[3]) == REG | |
8737 | && GET_CODE (operands[4]) == REG | |
8738 | && GET_CODE (operands[5]) == REG)) | |
4ed6ee50 | 8739 | return 0; |
8740 | ||
37580c80 | 8741 | /* Only 2 real operands to the subtraction. Subtraction is not a commutative |
8742 | operation, so operands[4] must be the same as operand[3]. */ | |
4ed6ee50 | 8743 | if (! rtx_equal_p (operands[3], operands[4])) |
8744 | return 0; | |
8745 | ||
33f88b1c | 8746 | /* multiply cannot feed into subtraction. */ |
37580c80 | 8747 | if (rtx_equal_p (operands[5], operands[0])) |
4ed6ee50 | 8748 | return 0; |
8749 | ||
33f88b1c | 8750 | /* Inout operand of sub cannot conflict with any operands from multiply. */ |
4ed6ee50 | 8751 | if (rtx_equal_p (operands[3], operands[0]) |
8752 | || rtx_equal_p (operands[3], operands[1]) | |
8753 | || rtx_equal_p (operands[3], operands[2])) | |
8754 | return 0; | |
8755 | ||
ab449421 | 8756 | /* SFmode limits the registers to the upper 32 of the 32bit FP regs. */ |
8757 | if (mode == SFmode | |
bac38c40 | 8758 | && (REGNO_REG_CLASS (REGNO (operands[0])) != FPUPPER_REGS |
8759 | || REGNO_REG_CLASS (REGNO (operands[1])) != FPUPPER_REGS | |
8760 | || REGNO_REG_CLASS (REGNO (operands[2])) != FPUPPER_REGS | |
8761 | || REGNO_REG_CLASS (REGNO (operands[3])) != FPUPPER_REGS | |
8762 | || REGNO_REG_CLASS (REGNO (operands[4])) != FPUPPER_REGS | |
8763 | || REGNO_REG_CLASS (REGNO (operands[5])) != FPUPPER_REGS)) | |
ab449421 | 8764 | return 0; |
8765 | ||
4ed6ee50 | 8766 | /* Passed. Operands are suitable for fmpysub. */ |
8767 | return 1; | |
8768 | } | |
8769 | ||
6720f95e | 8770 | /* Return 1 if the given constant is 2, 4, or 8. These are the valid |
edb1ad78 | 8771 | constants for a MULT embedded inside a memory address. */ |
8772 | int | |
8773 | pa_mem_shadd_constant_p (int val) | |
8774 | { | |
8775 | if (val == 2 || val == 4 || val == 8) | |
8776 | return 1; | |
8777 | else | |
8778 | return 0; | |
8779 | } | |
8780 | ||
8781 | /* Return 1 if the given constant is 1, 2, or 3. These are the valid | |
6720f95e | 8782 | constants for shadd instructions. */ |
913de4b4 | 8783 | int |
e202682d | 8784 | pa_shadd_constant_p (int val) |
6720f95e | 8785 | { |
edb1ad78 | 8786 | if (val == 1 || val == 2 || val == 3) |
6720f95e | 8787 | return 1; |
8788 | else | |
8789 | return 0; | |
8790 | } | |
3a16146d | 8791 | |
372b3fe2 | 8792 | /* Return TRUE if INSN branches forward. */ |
8793 | ||
8794 | static bool | |
91a55c11 | 8795 | forward_branch_p (rtx_insn *insn) |
5fbd5940 | 8796 | { |
372b3fe2 | 8797 | rtx lab = JUMP_LABEL (insn); |
8798 | ||
8799 | /* The INSN must have a jump label. */ | |
8800 | gcc_assert (lab != NULL_RTX); | |
8801 | ||
8802 | if (INSN_ADDRESSES_SET_P ()) | |
8803 | return INSN_ADDRESSES (INSN_UID (lab)) > INSN_ADDRESSES (INSN_UID (insn)); | |
5fbd5940 | 8804 | |
8805 | while (insn) | |
8806 | { | |
372b3fe2 | 8807 | if (insn == lab) |
8808 | return true; | |
5fbd5940 | 8809 | else |
8810 | insn = NEXT_INSN (insn); | |
8811 | } | |
8812 | ||
372b3fe2 | 8813 | return false; |
5fbd5940 | 8814 | } |
8815 | ||
546a40bd | 8816 | /* Output an unconditional move and branch insn. */ |
8817 | ||
611a88e1 | 8818 | const char * |
91a55c11 | 8819 | pa_output_parallel_movb (rtx *operands, rtx_insn *insn) |
546a40bd | 8820 | { |
f26036bb | 8821 | int length = get_attr_length (insn); |
8822 | ||
546a40bd | 8823 | /* These are the cases in which we win. */ |
8824 | if (length == 4) | |
8825 | return "mov%I1b,tr %1,%0,%2"; | |
8826 | ||
f26036bb | 8827 | /* None of the following cases win, but they don't lose either. */ |
8828 | if (length == 8) | |
546a40bd | 8829 | { |
f26036bb | 8830 | if (dbr_sequence_length () == 0) |
8831 | { | |
8832 | /* Nothing in the delay slot, fake it by putting the combined | |
8833 | insn (the copy or add) in the delay slot of a bl. */ | |
8834 | if (GET_CODE (operands[1]) == CONST_INT) | |
8835 | return "b %2\n\tldi %1,%0"; | |
8836 | else | |
8837 | return "b %2\n\tcopy %1,%0"; | |
8838 | } | |
546a40bd | 8839 | else |
f26036bb | 8840 | { |
8841 | /* Something in the delay slot, but we've got a long branch. */ | |
8842 | if (GET_CODE (operands[1]) == CONST_INT) | |
8843 | return "ldi %1,%0\n\tb %2"; | |
8844 | else | |
8845 | return "copy %1,%0\n\tb %2"; | |
8846 | } | |
546a40bd | 8847 | } |
f26036bb | 8848 | |
8849 | if (GET_CODE (operands[1]) == CONST_INT) | |
8850 | output_asm_insn ("ldi %1,%0", operands); | |
546a40bd | 8851 | else |
f26036bb | 8852 | output_asm_insn ("copy %1,%0", operands); |
e202682d | 8853 | return pa_output_lbranch (operands[2], insn, 1); |
546a40bd | 8854 | } |
8855 | ||
8856 | /* Output an unconditional add and branch insn. */ | |
8857 | ||
611a88e1 | 8858 | const char * |
91a55c11 | 8859 | pa_output_parallel_addb (rtx *operands, rtx_insn *insn) |
546a40bd | 8860 | { |
f26036bb | 8861 | int length = get_attr_length (insn); |
8862 | ||
546a40bd | 8863 | /* To make life easy we want operand0 to be the shared input/output |
8864 | operand and operand1 to be the readonly operand. */ | |
8865 | if (operands[0] == operands[1]) | |
8866 | operands[1] = operands[2]; | |
8867 | ||
8868 | /* These are the cases in which we win. */ | |
8869 | if (length == 4) | |
8870 | return "add%I1b,tr %1,%0,%3"; | |
8871 | ||
f26036bb | 8872 | /* None of the following cases win, but they don't lose either. */ |
8873 | if (length == 8) | |
546a40bd | 8874 | { |
f26036bb | 8875 | if (dbr_sequence_length () == 0) |
8876 | /* Nothing in the delay slot, fake it by putting the combined | |
8877 | insn (the copy or add) in the delay slot of a bl. */ | |
8878 | return "b %3\n\tadd%I1 %1,%0,%0"; | |
8879 | else | |
8880 | /* Something in the delay slot, but we've got a long branch. */ | |
8881 | return "add%I1 %1,%0,%0\n\tb %3"; | |
546a40bd | 8882 | } |
f26036bb | 8883 | |
8884 | output_asm_insn ("add%I1 %1,%0,%0", operands); | |
e202682d | 8885 | return pa_output_lbranch (operands[3], insn, 1); |
546a40bd | 8886 | } |
8887 | ||
3b1e673e | 8888 | /* We use this hook to perform a PA specific optimization which is difficult |
f4d21d1e | 8889 | to do in earlier passes. */ |
3b1e673e | 8890 | |
2efea8c0 | 8891 | static void |
5c1d8983 | 8892 | pa_reorg (void) |
3b1e673e | 8893 | { |
2efea8c0 | 8894 | remove_useless_addtr_insns (1); |
3d457930 | 8895 | |
342aabd9 | 8896 | if (pa_cpu < PROCESSOR_8000) |
2efea8c0 | 8897 | pa_combine_instructions (); |
d3287673 | 8898 | } |
bd49d362 | 8899 | |
8900 | /* The PA has a number of odd instructions which can perform multiple | |
8901 | tasks at once. On first generation PA machines (PA1.0 and PA1.1) | |
8902 | it may be profitable to combine two instructions into one instruction | |
8903 | with two outputs. It's not profitable PA2.0 machines because the | |
8904 | two outputs would take two slots in the reorder buffers. | |
8905 | ||
8906 | This routine finds instructions which can be combined and combines | |
8907 | them. We only support some of the potential combinations, and we | |
8908 | only try common ways to find suitable instructions. | |
8909 | ||
8910 | * addb can add two registers or a register and a small integer | |
8911 | and jump to a nearby (+-8k) location. Normally the jump to the | |
8912 | nearby location is conditional on the result of the add, but by | |
8913 | using the "true" condition we can make the jump unconditional. | |
8914 | Thus addb can perform two independent operations in one insn. | |
8915 | ||
8916 | * movb is similar to addb in that it can perform a reg->reg | |
8917 | or small immediate->reg copy and jump to a nearby (+-8k location). | |
8918 | ||
8919 | * fmpyadd and fmpysub can perform a FP multiply and either an | |
8920 | FP add or FP sub if the operands of the multiply and add/sub are | |
8921 | independent (there are other minor restrictions). Note both | |
8922 | the fmpy and fadd/fsub can in theory move to better spots according | |
8923 | to data dependencies, but for now we require the fmpy stay at a | |
8924 | fixed location. | |
8925 | ||
8926 | * Many of the memory operations can perform pre & post updates | |
8927 | of index registers. GCC's pre/post increment/decrement addressing | |
8928 | is far too simple to take advantage of all the possibilities. This | |
8929 | pass may not be suitable since those insns may not be independent. | |
8930 | ||
8931 | * comclr can compare two ints or an int and a register, nullify | |
8932 | the following instruction and zero some other register. This | |
8933 | is more difficult to use as it's harder to find an insn which | |
8934 | will generate a comclr than finding something like an unconditional | |
8935 | branch. (conditional moves & long branches create comclr insns). | |
8936 | ||
8937 | * Most arithmetic operations can conditionally skip the next | |
8938 | instruction. They can be viewed as "perform this operation | |
8939 | and conditionally jump to this nearby location" (where nearby | |
8940 | is an insns away). These are difficult to use due to the | |
8941 | branch length restrictions. */ | |
8942 | ||
7d27e4c9 | 8943 | static void |
5c1d8983 | 8944 | pa_combine_instructions (void) |
bd49d362 | 8945 | { |
91a55c11 | 8946 | rtx_insn *anchor; |
bd49d362 | 8947 | |
8948 | /* This can get expensive since the basic algorithm is on the | |
8949 | order of O(n^2) (or worse). Only do it for -O2 or higher | |
ad87de1e | 8950 | levels of optimization. */ |
bd49d362 | 8951 | if (optimize < 2) |
8952 | return; | |
8953 | ||
8954 | /* Walk down the list of insns looking for "anchor" insns which | |
8955 | may be combined with "floating" insns. As the name implies, | |
8956 | "anchor" instructions don't move, while "floating" insns may | |
8957 | move around. */ | |
ed3e6e5d | 8958 | rtx par = gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, NULL_RTX, NULL_RTX)); |
8959 | rtx_insn *new_rtx = make_insn_raw (par); | |
bd49d362 | 8960 | |
8961 | for (anchor = get_insns (); anchor; anchor = NEXT_INSN (anchor)) | |
8962 | { | |
8963 | enum attr_pa_combine_type anchor_attr; | |
8964 | enum attr_pa_combine_type floater_attr; | |
8965 | ||
8966 | /* We only care about INSNs, JUMP_INSNs, and CALL_INSNs. | |
8967 | Also ignore any special USE insns. */ | |
aa90bb35 | 8968 | if ((! NONJUMP_INSN_P (anchor) && ! JUMP_P (anchor) && ! CALL_P (anchor)) |
bd49d362 | 8969 | || GET_CODE (PATTERN (anchor)) == USE |
77985f1a | 8970 | || GET_CODE (PATTERN (anchor)) == CLOBBER) |
bd49d362 | 8971 | continue; |
8972 | ||
8973 | anchor_attr = get_attr_pa_combine_type (anchor); | |
8974 | /* See if anchor is an insn suitable for combination. */ | |
8975 | if (anchor_attr == PA_COMBINE_TYPE_FMPY | |
8976 | || anchor_attr == PA_COMBINE_TYPE_FADDSUB | |
8977 | || (anchor_attr == PA_COMBINE_TYPE_UNCOND_BRANCH | |
8978 | && ! forward_branch_p (anchor))) | |
8979 | { | |
91a55c11 | 8980 | rtx_insn *floater; |
bd49d362 | 8981 | |
8982 | for (floater = PREV_INSN (anchor); | |
8983 | floater; | |
8984 | floater = PREV_INSN (floater)) | |
8985 | { | |
aa90bb35 | 8986 | if (NOTE_P (floater) |
8987 | || (NONJUMP_INSN_P (floater) | |
bd49d362 | 8988 | && (GET_CODE (PATTERN (floater)) == USE |
8989 | || GET_CODE (PATTERN (floater)) == CLOBBER))) | |
8990 | continue; | |
8991 | ||
8992 | /* Anything except a regular INSN will stop our search. */ | |
91f71fa3 | 8993 | if (! NONJUMP_INSN_P (floater)) |
bd49d362 | 8994 | { |
91a55c11 | 8995 | floater = NULL; |
bd49d362 | 8996 | break; |
8997 | } | |
8998 | ||
8999 | /* See if FLOATER is suitable for combination with the | |
9000 | anchor. */ | |
9001 | floater_attr = get_attr_pa_combine_type (floater); | |
9002 | if ((anchor_attr == PA_COMBINE_TYPE_FMPY | |
9003 | && floater_attr == PA_COMBINE_TYPE_FADDSUB) | |
9004 | || (anchor_attr == PA_COMBINE_TYPE_FADDSUB | |
9005 | && floater_attr == PA_COMBINE_TYPE_FMPY)) | |
9006 | { | |
9007 | /* If ANCHOR and FLOATER can be combined, then we're | |
9008 | done with this pass. */ | |
8deb3959 | 9009 | if (pa_can_combine_p (new_rtx, anchor, floater, 0, |
bd49d362 | 9010 | SET_DEST (PATTERN (floater)), |
9011 | XEXP (SET_SRC (PATTERN (floater)), 0), | |
9012 | XEXP (SET_SRC (PATTERN (floater)), 1))) | |
9013 | break; | |
9014 | } | |
9015 | ||
9016 | else if (anchor_attr == PA_COMBINE_TYPE_UNCOND_BRANCH | |
9017 | && floater_attr == PA_COMBINE_TYPE_ADDMOVE) | |
9018 | { | |
9019 | if (GET_CODE (SET_SRC (PATTERN (floater))) == PLUS) | |
9020 | { | |
8deb3959 | 9021 | if (pa_can_combine_p (new_rtx, anchor, floater, 0, |
bd49d362 | 9022 | SET_DEST (PATTERN (floater)), |
9023 | XEXP (SET_SRC (PATTERN (floater)), 0), | |
9024 | XEXP (SET_SRC (PATTERN (floater)), 1))) | |
9025 | break; | |
9026 | } | |
9027 | else | |
9028 | { | |
8deb3959 | 9029 | if (pa_can_combine_p (new_rtx, anchor, floater, 0, |
bd49d362 | 9030 | SET_DEST (PATTERN (floater)), |
9031 | SET_SRC (PATTERN (floater)), | |
9032 | SET_SRC (PATTERN (floater)))) | |
9033 | break; | |
9034 | } | |
9035 | } | |
9036 | } | |
9037 | ||
9038 | /* If we didn't find anything on the backwards scan try forwards. */ | |
9039 | if (!floater | |
9040 | && (anchor_attr == PA_COMBINE_TYPE_FMPY | |
9041 | || anchor_attr == PA_COMBINE_TYPE_FADDSUB)) | |
9042 | { | |
9043 | for (floater = anchor; floater; floater = NEXT_INSN (floater)) | |
9044 | { | |
aa90bb35 | 9045 | if (NOTE_P (floater) |
9046 | || (NONJUMP_INSN_P (floater) | |
bd49d362 | 9047 | && (GET_CODE (PATTERN (floater)) == USE |
9048 | || GET_CODE (PATTERN (floater)) == CLOBBER))) | |
9840d99d | 9049 | |
bd49d362 | 9050 | continue; |
9051 | ||
9052 | /* Anything except a regular INSN will stop our search. */ | |
91f71fa3 | 9053 | if (! NONJUMP_INSN_P (floater)) |
bd49d362 | 9054 | { |
91a55c11 | 9055 | floater = NULL; |
bd49d362 | 9056 | break; |
9057 | } | |
9058 | ||
9059 | /* See if FLOATER is suitable for combination with the | |
9060 | anchor. */ | |
9061 | floater_attr = get_attr_pa_combine_type (floater); | |
9062 | if ((anchor_attr == PA_COMBINE_TYPE_FMPY | |
9063 | && floater_attr == PA_COMBINE_TYPE_FADDSUB) | |
9064 | || (anchor_attr == PA_COMBINE_TYPE_FADDSUB | |
9065 | && floater_attr == PA_COMBINE_TYPE_FMPY)) | |
9066 | { | |
9067 | /* If ANCHOR and FLOATER can be combined, then we're | |
9068 | done with this pass. */ | |
8deb3959 | 9069 | if (pa_can_combine_p (new_rtx, anchor, floater, 1, |
bd49d362 | 9070 | SET_DEST (PATTERN (floater)), |
ea52c577 | 9071 | XEXP (SET_SRC (PATTERN (floater)), |
9072 | 0), | |
9073 | XEXP (SET_SRC (PATTERN (floater)), | |
9074 | 1))) | |
bd49d362 | 9075 | break; |
9076 | } | |
9077 | } | |
9078 | } | |
9079 | ||
9080 | /* FLOATER will be nonzero if we found a suitable floating | |
9081 | insn for combination with ANCHOR. */ | |
9082 | if (floater | |
9083 | && (anchor_attr == PA_COMBINE_TYPE_FADDSUB | |
9084 | || anchor_attr == PA_COMBINE_TYPE_FMPY)) | |
9085 | { | |
9086 | /* Emit the new instruction and delete the old anchor. */ | |
7014838c | 9087 | emit_insn_before (gen_rtx_PARALLEL |
9088 | (VOIDmode, | |
9089 | gen_rtvec (2, PATTERN (anchor), | |
9090 | PATTERN (floater))), | |
9091 | anchor); | |
9092 | ||
ad4583d9 | 9093 | SET_INSN_DELETED (anchor); |
bd49d362 | 9094 | |
9095 | /* Emit a special USE insn for FLOATER, then delete | |
9096 | the floating insn. */ | |
ad851752 | 9097 | emit_insn_before (gen_rtx_USE (VOIDmode, floater), floater); |
bd49d362 | 9098 | delete_insn (floater); |
9099 | ||
9100 | continue; | |
9101 | } | |
9102 | else if (floater | |
9103 | && anchor_attr == PA_COMBINE_TYPE_UNCOND_BRANCH) | |
9104 | { | |
9105 | rtx temp; | |
9106 | /* Emit the new_jump instruction and delete the old anchor. */ | |
7014838c | 9107 | temp |
9108 | = emit_jump_insn_before (gen_rtx_PARALLEL | |
9109 | (VOIDmode, | |
9110 | gen_rtvec (2, PATTERN (anchor), | |
9111 | PATTERN (floater))), | |
9112 | anchor); | |
9113 | ||
bd49d362 | 9114 | JUMP_LABEL (temp) = JUMP_LABEL (anchor); |
ad4583d9 | 9115 | SET_INSN_DELETED (anchor); |
bd49d362 | 9116 | |
9117 | /* Emit a special USE insn for FLOATER, then delete | |
9118 | the floating insn. */ | |
ad851752 | 9119 | emit_insn_before (gen_rtx_USE (VOIDmode, floater), floater); |
bd49d362 | 9120 | delete_insn (floater); |
9121 | continue; | |
9122 | } | |
9123 | } | |
9124 | } | |
9125 | } | |
9126 | ||
9aadea62 | 9127 | static int |
ed3e6e5d | 9128 | pa_can_combine_p (rtx_insn *new_rtx, rtx_insn *anchor, rtx_insn *floater, |
91a55c11 | 9129 | int reversed, rtx dest, |
5c1d8983 | 9130 | rtx src1, rtx src2) |
bd49d362 | 9131 | { |
9132 | int insn_code_number; | |
91a55c11 | 9133 | rtx_insn *start, *end; |
bd49d362 | 9134 | |
9135 | /* Create a PARALLEL with the patterns of ANCHOR and | |
9136 | FLOATER, try to recognize it, then test constraints | |
9137 | for the resulting pattern. | |
9138 | ||
9139 | If the pattern doesn't match or the constraints | |
9140 | aren't met keep searching for a suitable floater | |
9141 | insn. */ | |
8deb3959 | 9142 | XVECEXP (PATTERN (new_rtx), 0, 0) = PATTERN (anchor); |
9143 | XVECEXP (PATTERN (new_rtx), 0, 1) = PATTERN (floater); | |
9144 | INSN_CODE (new_rtx) = -1; | |
9145 | insn_code_number = recog_memoized (new_rtx); | |
e2f730a9 | 9146 | basic_block bb = BLOCK_FOR_INSN (anchor); |
bd49d362 | 9147 | if (insn_code_number < 0 |
e2f730a9 | 9148 | || (extract_insn (new_rtx), |
cc590d0c | 9149 | !constrain_operands (1, get_preferred_alternatives (new_rtx, bb)))) |
bd49d362 | 9150 | return 0; |
9151 | ||
9152 | if (reversed) | |
9153 | { | |
9154 | start = anchor; | |
9155 | end = floater; | |
9156 | } | |
9157 | else | |
9158 | { | |
9159 | start = floater; | |
9160 | end = anchor; | |
9161 | } | |
9162 | ||
9163 | /* There's up to three operands to consider. One | |
9164 | output and two inputs. | |
9165 | ||
9166 | The output must not be used between FLOATER & ANCHOR | |
9167 | exclusive. The inputs must not be set between | |
9168 | FLOATER and ANCHOR exclusive. */ | |
9169 | ||
9170 | if (reg_used_between_p (dest, start, end)) | |
9171 | return 0; | |
9172 | ||
9173 | if (reg_set_between_p (src1, start, end)) | |
9174 | return 0; | |
9175 | ||
9176 | if (reg_set_between_p (src2, start, end)) | |
9177 | return 0; | |
9178 | ||
9179 | /* If we get here, then everything is good. */ | |
9180 | return 1; | |
9181 | } | |
14d18de3 | 9182 | |
a6582a53 | 9183 | /* Return nonzero if references for INSN are delayed. |
14d18de3 | 9184 | |
9185 | Millicode insns are actually function calls with some special | |
9186 | constraints on arguments and register usage. | |
9187 | ||
9188 | Millicode calls always expect their arguments in the integer argument | |
9189 | registers, and always return their result in %r29 (ret1). They | |
2013ddf6 | 9190 | are expected to clobber their arguments, %r1, %r29, and the return |
9191 | pointer which is %r31 on 32-bit and %r2 on 64-bit, and nothing else. | |
9192 | ||
9193 | This function tells reorg that the references to arguments and | |
9194 | millicode calls do not appear to happen until after the millicode call. | |
9195 | This allows reorg to put insns which set the argument registers into the | |
9196 | delay slot of the millicode call -- thus they act more like traditional | |
9197 | CALL_INSNs. | |
9198 | ||
33f88b1c | 9199 | Note we cannot consider side effects of the insn to be delayed because |
2013ddf6 | 9200 | the branch and link insn will clobber the return pointer. If we happened |
9201 | to use the return pointer in the delay slot of the call, then we lose. | |
14d18de3 | 9202 | |
9203 | get_attr_type will try to recognize the given insn, so make sure to | |
9204 | filter out things it will not accept -- SEQUENCE, USE and CLOBBER insns | |
9205 | in particular. */ | |
9206 | int | |
d3ffa7b4 | 9207 | pa_insn_refs_are_delayed (rtx_insn *insn) |
14d18de3 | 9208 | { |
aa90bb35 | 9209 | return ((NONJUMP_INSN_P (insn) |
14d18de3 | 9210 | && GET_CODE (PATTERN (insn)) != SEQUENCE |
9211 | && GET_CODE (PATTERN (insn)) != USE | |
9212 | && GET_CODE (PATTERN (insn)) != CLOBBER | |
9213 | && get_attr_type (insn) == TYPE_MILLI)); | |
9214 | } | |
5cb4669a | 9215 | |
3b2411a8 | 9216 | /* Promote the return value, but not the arguments. */ |
9217 | ||
3754d046 | 9218 | static machine_mode |
3b2411a8 | 9219 | pa_promote_function_mode (const_tree type ATTRIBUTE_UNUSED, |
3754d046 | 9220 | machine_mode mode, |
3b2411a8 | 9221 | int *punsignedp ATTRIBUTE_UNUSED, |
9222 | const_tree fntype ATTRIBUTE_UNUSED, | |
9223 | int for_return) | |
9224 | { | |
c879dbcf | 9225 | if (for_return == 0) |
3b2411a8 | 9226 | return mode; |
a6b21a58 | 9227 | return promote_mode (type, mode, punsignedp); |
3b2411a8 | 9228 | } |
9229 | ||
58a72cce | 9230 | /* On the HP-PA the value is found in register(s) 28(-29), unless |
9231 | the mode is SF or DF. Then the value is returned in fr4 (32). | |
9232 | ||
3b2411a8 | 9233 | This must perform the same promotions as PROMOTE_MODE, else promoting |
9234 | return values in TARGET_PROMOTE_FUNCTION_MODE will not work correctly. | |
58a72cce | 9235 | |
9236 | Small structures must be returned in a PARALLEL on PA64 in order | |
9237 | to match the HP Compiler ABI. */ | |
9238 | ||
93d3ee56 | 9239 | static rtx |
cb0b8817 | 9240 | pa_function_value (const_tree valtype, |
9241 | const_tree func ATTRIBUTE_UNUSED, | |
9242 | bool outgoing ATTRIBUTE_UNUSED) | |
58a72cce | 9243 | { |
3754d046 | 9244 | machine_mode valmode; |
58a72cce | 9245 | |
4779159e | 9246 | if (AGGREGATE_TYPE_P (valtype) |
9247 | || TREE_CODE (valtype) == COMPLEX_TYPE | |
9248 | || TREE_CODE (valtype) == VECTOR_TYPE) | |
58a72cce | 9249 | { |
c4d24f01 | 9250 | HOST_WIDE_INT valsize = int_size_in_bytes (valtype); |
9251 | ||
9252 | /* Handle aggregates that fit exactly in a word or double word. */ | |
9253 | if ((valsize & (UNITS_PER_WORD - 1)) == 0) | |
9254 | return gen_rtx_REG (TYPE_MODE (valtype), 28); | |
9255 | ||
b105ef41 | 9256 | if (TARGET_64BIT) |
9257 | { | |
9258 | /* Aggregates with a size less than or equal to 128 bits are | |
9259 | returned in GR 28(-29). They are left justified. The pad | |
9260 | bits are undefined. Larger aggregates are returned in | |
9261 | memory. */ | |
9262 | rtx loc[2]; | |
9263 | int i, offset = 0; | |
c4d24f01 | 9264 | int ub = valsize <= UNITS_PER_WORD ? 1 : 2; |
b105ef41 | 9265 | |
9266 | for (i = 0; i < ub; i++) | |
9267 | { | |
9268 | loc[i] = gen_rtx_EXPR_LIST (VOIDmode, | |
9269 | gen_rtx_REG (DImode, 28 + i), | |
9270 | GEN_INT (offset)); | |
9271 | offset += 8; | |
9272 | } | |
58a72cce | 9273 | |
b105ef41 | 9274 | return gen_rtx_PARALLEL (BLKmode, gen_rtvec_v (ub, loc)); |
9275 | } | |
c4d24f01 | 9276 | else if (valsize > UNITS_PER_WORD) |
58a72cce | 9277 | { |
b105ef41 | 9278 | /* Aggregates 5 to 8 bytes in size are returned in general |
9279 | registers r28-r29 in the same manner as other non | |
9280 | floating-point objects. The data is right-justified and | |
9281 | zero-extended to 64 bits. This is opposite to the normal | |
9282 | justification used on big endian targets and requires | |
9283 | special treatment. */ | |
9284 | rtx loc = gen_rtx_EXPR_LIST (VOIDmode, | |
9285 | gen_rtx_REG (DImode, 28), const0_rtx); | |
9286 | return gen_rtx_PARALLEL (BLKmode, gen_rtvec (1, loc)); | |
58a72cce | 9287 | } |
58a72cce | 9288 | } |
9289 | ||
9290 | if ((INTEGRAL_TYPE_P (valtype) | |
eb46b0b6 | 9291 | && GET_MODE_BITSIZE (TYPE_MODE (valtype)) < BITS_PER_WORD) |
58a72cce | 9292 | || POINTER_TYPE_P (valtype)) |
9293 | valmode = word_mode; | |
9294 | else | |
9295 | valmode = TYPE_MODE (valtype); | |
9296 | ||
9297 | if (TREE_CODE (valtype) == REAL_TYPE | |
b105ef41 | 9298 | && !AGGREGATE_TYPE_P (valtype) |
58a72cce | 9299 | && TYPE_MODE (valtype) != TFmode |
9300 | && !TARGET_SOFT_FLOAT) | |
9301 | return gen_rtx_REG (valmode, 32); | |
9302 | ||
9303 | return gen_rtx_REG (valmode, 28); | |
9304 | } | |
9305 | ||
93d3ee56 | 9306 | /* Implement the TARGET_LIBCALL_VALUE hook. */ |
9307 | ||
9308 | static rtx | |
3754d046 | 9309 | pa_libcall_value (machine_mode mode, |
93d3ee56 | 9310 | const_rtx fun ATTRIBUTE_UNUSED) |
9311 | { | |
9312 | if (! TARGET_SOFT_FLOAT | |
9313 | && (mode == SFmode || mode == DFmode)) | |
9314 | return gen_rtx_REG (mode, 32); | |
9315 | else | |
9316 | return gen_rtx_REG (mode, 28); | |
9317 | } | |
9318 | ||
9319 | /* Implement the TARGET_FUNCTION_VALUE_REGNO_P hook. */ | |
9320 | ||
9321 | static bool | |
9322 | pa_function_value_regno_p (const unsigned int regno) | |
9323 | { | |
9324 | if (regno == 28 | |
9325 | || (! TARGET_SOFT_FLOAT && regno == 32)) | |
9326 | return true; | |
9327 | ||
9328 | return false; | |
9329 | } | |
9330 | ||
8b4bd662 | 9331 | /* Update the data in CUM to advance over an argument |
9332 | of mode MODE and data type TYPE. | |
9333 | (TYPE is null for libcalls where that information may not be available.) */ | |
9334 | ||
9335 | static void | |
3754d046 | 9336 | pa_function_arg_advance (cumulative_args_t cum_v, machine_mode mode, |
8b4bd662 | 9337 | const_tree type, bool named ATTRIBUTE_UNUSED) |
9338 | { | |
39cba157 | 9339 | CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); |
8b4bd662 | 9340 | int arg_size = FUNCTION_ARG_SIZE (mode, type); |
9341 | ||
9342 | cum->nargs_prototype--; | |
9343 | cum->words += (arg_size | |
9344 | + ((cum->words & 01) | |
9345 | && type != NULL_TREE | |
9346 | && arg_size > 1)); | |
9347 | } | |
9348 | ||
5e3c5739 | 9349 | /* Return the location of a parameter that is passed in a register or NULL |
9350 | if the parameter has any component that is passed in memory. | |
9351 | ||
9352 | This is new code and will be pushed to into the net sources after | |
9840d99d | 9353 | further testing. |
5e3c5739 | 9354 | |
9355 | ??? We might want to restructure this so that it looks more like other | |
9356 | ports. */ | |
8b4bd662 | 9357 | static rtx |
3754d046 | 9358 | pa_function_arg (cumulative_args_t cum_v, machine_mode mode, |
8b4bd662 | 9359 | const_tree type, bool named ATTRIBUTE_UNUSED) |
5e3c5739 | 9360 | { |
39cba157 | 9361 | CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); |
5e3c5739 | 9362 | int max_arg_words = (TARGET_64BIT ? 8 : 4); |
2a075f91 | 9363 | int alignment = 0; |
ac965869 | 9364 | int arg_size; |
5e3c5739 | 9365 | int fpr_reg_base; |
9366 | int gpr_reg_base; | |
9367 | rtx retval; | |
9368 | ||
ac965869 | 9369 | if (mode == VOIDmode) |
9370 | return NULL_RTX; | |
9371 | ||
9372 | arg_size = FUNCTION_ARG_SIZE (mode, type); | |
9373 | ||
9374 | /* If this arg would be passed partially or totally on the stack, then | |
f054eb3c | 9375 | this routine should return zero. pa_arg_partial_bytes will |
ac965869 | 9376 | handle arguments which are split between regs and stack slots if |
9377 | the ABI mandates split arguments. */ | |
4779159e | 9378 | if (!TARGET_64BIT) |
5e3c5739 | 9379 | { |
ac965869 | 9380 | /* The 32-bit ABI does not split arguments. */ |
9381 | if (cum->words + arg_size > max_arg_words) | |
5e3c5739 | 9382 | return NULL_RTX; |
9383 | } | |
9384 | else | |
9385 | { | |
2a075f91 | 9386 | if (arg_size > 1) |
9387 | alignment = cum->words & 1; | |
ac965869 | 9388 | if (cum->words + alignment >= max_arg_words) |
5e3c5739 | 9389 | return NULL_RTX; |
9390 | } | |
9391 | ||
9392 | /* The 32bit ABIs and the 64bit ABIs are rather different, | |
9393 | particularly in their handling of FP registers. We might | |
9394 | be able to cleverly share code between them, but I'm not | |
9aadea62 | 9395 | going to bother in the hope that splitting them up results |
2a075f91 | 9396 | in code that is more easily understood. */ |
5e3c5739 | 9397 | |
5e3c5739 | 9398 | if (TARGET_64BIT) |
9399 | { | |
9400 | /* Advance the base registers to their current locations. | |
9401 | ||
9402 | Remember, gprs grow towards smaller register numbers while | |
2a075f91 | 9403 | fprs grow to higher register numbers. Also remember that |
9404 | although FP regs are 32-bit addressable, we pretend that | |
9405 | the registers are 64-bits wide. */ | |
5e3c5739 | 9406 | gpr_reg_base = 26 - cum->words; |
9407 | fpr_reg_base = 32 + cum->words; | |
9840d99d | 9408 | |
ac965869 | 9409 | /* Arguments wider than one word and small aggregates need special |
9410 | treatment. */ | |
9411 | if (arg_size > 1 | |
9412 | || mode == BLKmode | |
4779159e | 9413 | || (type && (AGGREGATE_TYPE_P (type) |
9414 | || TREE_CODE (type) == COMPLEX_TYPE | |
9415 | || TREE_CODE (type) == VECTOR_TYPE))) | |
5e3c5739 | 9416 | { |
2a075f91 | 9417 | /* Double-extended precision (80-bit), quad-precision (128-bit) |
9418 | and aggregates including complex numbers are aligned on | |
9419 | 128-bit boundaries. The first eight 64-bit argument slots | |
9420 | are associated one-to-one, with general registers r26 | |
9421 | through r19, and also with floating-point registers fr4 | |
9422 | through fr11. Arguments larger than one word are always | |
ac965869 | 9423 | passed in general registers. |
9424 | ||
9425 | Using a PARALLEL with a word mode register results in left | |
9426 | justified data on a big-endian target. */ | |
2a075f91 | 9427 | |
9428 | rtx loc[8]; | |
9429 | int i, offset = 0, ub = arg_size; | |
9430 | ||
9431 | /* Align the base register. */ | |
9432 | gpr_reg_base -= alignment; | |
9433 | ||
9434 | ub = MIN (ub, max_arg_words - cum->words - alignment); | |
9435 | for (i = 0; i < ub; i++) | |
5e3c5739 | 9436 | { |
2a075f91 | 9437 | loc[i] = gen_rtx_EXPR_LIST (VOIDmode, |
9438 | gen_rtx_REG (DImode, gpr_reg_base), | |
9439 | GEN_INT (offset)); | |
9440 | gpr_reg_base -= 1; | |
9441 | offset += 8; | |
5e3c5739 | 9442 | } |
2a075f91 | 9443 | |
e2810de9 | 9444 | return gen_rtx_PARALLEL (mode, gen_rtvec_v (ub, loc)); |
5e3c5739 | 9445 | } |
ac965869 | 9446 | } |
5e3c5739 | 9447 | else |
9448 | { | |
9449 | /* If the argument is larger than a word, then we know precisely | |
9450 | which registers we must use. */ | |
2a075f91 | 9451 | if (arg_size > 1) |
5e3c5739 | 9452 | { |
9453 | if (cum->words) | |
9454 | { | |
9455 | gpr_reg_base = 23; | |
9456 | fpr_reg_base = 38; | |
9457 | } | |
9458 | else | |
9459 | { | |
9460 | gpr_reg_base = 25; | |
9461 | fpr_reg_base = 34; | |
9462 | } | |
ac965869 | 9463 | |
9464 | /* Structures 5 to 8 bytes in size are passed in the general | |
9465 | registers in the same manner as other non floating-point | |
9466 | objects. The data is right-justified and zero-extended | |
9f0b40a7 | 9467 | to 64 bits. This is opposite to the normal justification |
9468 | used on big endian targets and requires special treatment. | |
4779159e | 9469 | We now define BLOCK_REG_PADDING to pad these objects. |
9470 | Aggregates, complex and vector types are passed in the same | |
9471 | manner as structures. */ | |
9472 | if (mode == BLKmode | |
9473 | || (type && (AGGREGATE_TYPE_P (type) | |
9474 | || TREE_CODE (type) == COMPLEX_TYPE | |
9475 | || TREE_CODE (type) == VECTOR_TYPE))) | |
ac965869 | 9476 | { |
58a72cce | 9477 | rtx loc = gen_rtx_EXPR_LIST (VOIDmode, |
9478 | gen_rtx_REG (DImode, gpr_reg_base), | |
9479 | const0_rtx); | |
b105ef41 | 9480 | return gen_rtx_PARALLEL (BLKmode, gen_rtvec (1, loc)); |
ac965869 | 9481 | } |
5e3c5739 | 9482 | } |
9483 | else | |
9484 | { | |
9485 | /* We have a single word (32 bits). A simple computation | |
9486 | will get us the register #s we need. */ | |
9487 | gpr_reg_base = 26 - cum->words; | |
9488 | fpr_reg_base = 32 + 2 * cum->words; | |
9489 | } | |
9490 | } | |
9491 | ||
9503b0f7 | 9492 | /* Determine if the argument needs to be passed in both general and |
5e3c5739 | 9493 | floating point registers. */ |
9503b0f7 | 9494 | if (((TARGET_PORTABLE_RUNTIME || TARGET_64BIT || TARGET_ELF32) |
9495 | /* If we are doing soft-float with portable runtime, then there | |
9496 | is no need to worry about FP regs. */ | |
f336e0bc | 9497 | && !TARGET_SOFT_FLOAT |
4779159e | 9498 | /* The parameter must be some kind of scalar float, else we just |
9503b0f7 | 9499 | pass it in integer registers. */ |
4779159e | 9500 | && GET_MODE_CLASS (mode) == MODE_FLOAT |
9503b0f7 | 9501 | /* The target function must not have a prototype. */ |
9502 | && cum->nargs_prototype <= 0 | |
9503 | /* libcalls do not need to pass items in both FP and general | |
9504 | registers. */ | |
9505 | && type != NULL_TREE | |
f336e0bc | 9506 | /* All this hair applies to "outgoing" args only. This includes |
9507 | sibcall arguments setup with FUNCTION_INCOMING_ARG. */ | |
9508 | && !cum->incoming) | |
9503b0f7 | 9509 | /* Also pass outgoing floating arguments in both registers in indirect |
9510 | calls with the 32 bit ABI and the HP assembler since there is no | |
9511 | way to the specify argument locations in static functions. */ | |
f336e0bc | 9512 | || (!TARGET_64BIT |
9513 | && !TARGET_GAS | |
9514 | && !cum->incoming | |
9503b0f7 | 9515 | && cum->indirect |
4779159e | 9516 | && GET_MODE_CLASS (mode) == MODE_FLOAT)) |
5e3c5739 | 9517 | { |
9518 | retval | |
9519 | = gen_rtx_PARALLEL | |
9520 | (mode, | |
9521 | gen_rtvec (2, | |
9522 | gen_rtx_EXPR_LIST (VOIDmode, | |
9523 | gen_rtx_REG (mode, fpr_reg_base), | |
9524 | const0_rtx), | |
9525 | gen_rtx_EXPR_LIST (VOIDmode, | |
9526 | gen_rtx_REG (mode, gpr_reg_base), | |
9527 | const0_rtx))); | |
9528 | } | |
9529 | else | |
9530 | { | |
9531 | /* See if we should pass this parameter in a general register. */ | |
9532 | if (TARGET_SOFT_FLOAT | |
9533 | /* Indirect calls in the normal 32bit ABI require all arguments | |
9534 | to be passed in general registers. */ | |
9535 | || (!TARGET_PORTABLE_RUNTIME | |
9536 | && !TARGET_64BIT | |
a052da6f | 9537 | && !TARGET_ELF32 |
5e3c5739 | 9538 | && cum->indirect) |
4779159e | 9539 | /* If the parameter is not a scalar floating-point parameter, |
9540 | then it belongs in GPRs. */ | |
9541 | || GET_MODE_CLASS (mode) != MODE_FLOAT | |
b105ef41 | 9542 | /* Structure with single SFmode field belongs in GPR. */ |
9543 | || (type && AGGREGATE_TYPE_P (type))) | |
5e3c5739 | 9544 | retval = gen_rtx_REG (mode, gpr_reg_base); |
9545 | else | |
9546 | retval = gen_rtx_REG (mode, fpr_reg_base); | |
9547 | } | |
9548 | return retval; | |
9549 | } | |
9550 | ||
bd99ba64 | 9551 | /* Arguments larger than one word are double word aligned. */ |
9552 | ||
9553 | static unsigned int | |
3754d046 | 9554 | pa_function_arg_boundary (machine_mode mode, const_tree type) |
bd99ba64 | 9555 | { |
bd99ba64 | 9556 | bool singleword = (type |
57a9c540 | 9557 | ? (integer_zerop (TYPE_SIZE (type)) |
9558 | || !TREE_CONSTANT (TYPE_SIZE (type)) | |
bd99ba64 | 9559 | || int_size_in_bytes (type) <= UNITS_PER_WORD) |
23e85af8 | 9560 | : GET_MODE_SIZE (mode) <= UNITS_PER_WORD); |
bd99ba64 | 9561 | |
9562 | return singleword ? PARM_BOUNDARY : MAX_PARM_BOUNDARY; | |
9563 | } | |
5e3c5739 | 9564 | |
9565 | /* If this arg would be passed totally in registers or totally on the stack, | |
f054eb3c | 9566 | then this routine should return zero. */ |
9567 | ||
9568 | static int | |
3754d046 | 9569 | pa_arg_partial_bytes (cumulative_args_t cum_v, machine_mode mode, |
f054eb3c | 9570 | tree type, bool named ATTRIBUTE_UNUSED) |
5e3c5739 | 9571 | { |
39cba157 | 9572 | CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); |
b7d86581 | 9573 | unsigned int max_arg_words = 8; |
9574 | unsigned int offset = 0; | |
5e3c5739 | 9575 | |
f054eb3c | 9576 | if (!TARGET_64BIT) |
9577 | return 0; | |
9578 | ||
b7d86581 | 9579 | if (FUNCTION_ARG_SIZE (mode, type) > 1 && (cum->words & 1)) |
5e3c5739 | 9580 | offset = 1; |
9581 | ||
b7d86581 | 9582 | if (cum->words + offset + FUNCTION_ARG_SIZE (mode, type) <= max_arg_words) |
6dc3b0d9 | 9583 | /* Arg fits fully into registers. */ |
5e3c5739 | 9584 | return 0; |
9840d99d | 9585 | else if (cum->words + offset >= max_arg_words) |
6dc3b0d9 | 9586 | /* Arg fully on the stack. */ |
5e3c5739 | 9587 | return 0; |
9588 | else | |
6dc3b0d9 | 9589 | /* Arg is split. */ |
f054eb3c | 9590 | return (max_arg_words - cum->words - offset) * UNITS_PER_WORD; |
5e3c5739 | 9591 | } |
9592 | ||
9593 | ||
2f14b1f9 | 9594 | /* A get_unnamed_section callback for switching to the text section. |
916c9cef | 9595 | |
9596 | This function is only used with SOM. Because we don't support | |
9597 | named subspaces, we can only create a new subspace or switch back | |
99c11254 | 9598 | to the default text subspace. */ |
99c11254 | 9599 | |
2f14b1f9 | 9600 | static void |
9601 | som_output_text_section_asm_op (const void *data ATTRIBUTE_UNUSED) | |
9602 | { | |
9603 | gcc_assert (TARGET_SOM); | |
99c11254 | 9604 | if (TARGET_GAS) |
916c9cef | 9605 | { |
9f4a0384 | 9606 | if (cfun && cfun->machine && !cfun->machine->in_nsubspa) |
916c9cef | 9607 | { |
9608 | /* We only want to emit a .nsubspa directive once at the | |
9609 | start of the function. */ | |
9610 | cfun->machine->in_nsubspa = 1; | |
9611 | ||
9612 | /* Create a new subspace for the text. This provides | |
9613 | better stub placement and one-only functions. */ | |
9614 | if (cfun->decl | |
9615 | && DECL_ONE_ONLY (cfun->decl) | |
9616 | && !DECL_WEAK (cfun->decl)) | |
78962d38 | 9617 | { |
9618 | output_section_asm_op ("\t.SPACE $TEXT$\n" | |
9619 | "\t.NSUBSPA $CODE$,QUAD=0,ALIGN=8," | |
9620 | "ACCESS=44,SORT=24,COMDAT"); | |
9621 | return; | |
9622 | } | |
916c9cef | 9623 | } |
9624 | else | |
9625 | { | |
9626 | /* There isn't a current function or the body of the current | |
9627 | function has been completed. So, we are changing to the | |
78962d38 | 9628 | text section to output debugging information. Thus, we |
9629 | need to forget that we are in the text section so that | |
9630 | varasm.c will call us when text_section is selected again. */ | |
9f4a0384 | 9631 | gcc_assert (!cfun || !cfun->machine |
9632 | || cfun->machine->in_nsubspa == 2); | |
2f14b1f9 | 9633 | in_section = NULL; |
916c9cef | 9634 | } |
78962d38 | 9635 | output_section_asm_op ("\t.SPACE $TEXT$\n\t.NSUBSPA $CODE$"); |
9636 | return; | |
916c9cef | 9637 | } |
2f14b1f9 | 9638 | output_section_asm_op ("\t.SPACE $TEXT$\n\t.SUBSPA $CODE$"); |
9639 | } | |
9640 | ||
78962d38 | 9641 | /* A get_unnamed_section callback for switching to comdat data |
9642 | sections. This function is only used with SOM. */ | |
9643 | ||
9644 | static void | |
9645 | som_output_comdat_data_section_asm_op (const void *data) | |
9646 | { | |
9647 | in_section = NULL; | |
9648 | output_section_asm_op (data); | |
9649 | } | |
9650 | ||
2f14b1f9 | 9651 | /* Implement TARGET_ASM_INITIALIZE_SECTIONS */ |
916c9cef | 9652 | |
2f14b1f9 | 9653 | static void |
9654 | pa_som_asm_init_sections (void) | |
9655 | { | |
9656 | text_section | |
9657 | = get_unnamed_section (0, som_output_text_section_asm_op, NULL); | |
9658 | ||
9659 | /* SOM puts readonly data in the default $LIT$ subspace when PIC code | |
9660 | is not being generated. */ | |
9661 | som_readonly_data_section | |
9662 | = get_unnamed_section (0, output_section_asm_op, | |
9663 | "\t.SPACE $TEXT$\n\t.SUBSPA $LIT$"); | |
9664 | ||
9665 | /* When secondary definitions are not supported, SOM makes readonly | |
9666 | data one-only by creating a new $LIT$ subspace in $TEXT$ with | |
9667 | the comdat flag. */ | |
9668 | som_one_only_readonly_data_section | |
78962d38 | 9669 | = get_unnamed_section (0, som_output_comdat_data_section_asm_op, |
2f14b1f9 | 9670 | "\t.SPACE $TEXT$\n" |
9671 | "\t.NSUBSPA $LIT$,QUAD=0,ALIGN=8," | |
9672 | "ACCESS=0x2c,SORT=16,COMDAT"); | |
9673 | ||
9674 | ||
9675 | /* When secondary definitions are not supported, SOM makes data one-only | |
9676 | by creating a new $DATA$ subspace in $PRIVATE$ with the comdat flag. */ | |
9677 | som_one_only_data_section | |
78962d38 | 9678 | = get_unnamed_section (SECTION_WRITE, |
9679 | som_output_comdat_data_section_asm_op, | |
2f14b1f9 | 9680 | "\t.SPACE $PRIVATE$\n" |
9681 | "\t.NSUBSPA $DATA$,QUAD=1,ALIGN=8," | |
9682 | "ACCESS=31,SORT=24,COMDAT"); | |
9683 | ||
8151bf30 | 9684 | if (flag_tm) |
9685 | som_tm_clone_table_section | |
9686 | = get_unnamed_section (0, output_section_asm_op, | |
9687 | "\t.SPACE $PRIVATE$\n\t.SUBSPA $TM_CLONE_TABLE$"); | |
9688 | ||
2f14b1f9 | 9689 | /* FIXME: HPUX ld generates incorrect GOT entries for "T" fixups |
9690 | which reference data within the $TEXT$ space (for example constant | |
9691 | strings in the $LIT$ subspace). | |
9692 | ||
9693 | The assemblers (GAS and HP as) both have problems with handling | |
9694 | the difference of two symbols which is the other correct way to | |
9695 | reference constant data during PIC code generation. | |
9696 | ||
9697 | So, there's no way to reference constant data which is in the | |
9698 | $TEXT$ space during PIC generation. Instead place all constant | |
9699 | data into the $PRIVATE$ subspace (this reduces sharing, but it | |
9700 | works correctly). */ | |
9701 | readonly_data_section = flag_pic ? data_section : som_readonly_data_section; | |
9702 | ||
9703 | /* We must not have a reference to an external symbol defined in a | |
9704 | shared library in a readonly section, else the SOM linker will | |
9705 | complain. | |
9706 | ||
9707 | So, we force exception information into the data section. */ | |
9708 | exception_section = data_section; | |
916c9cef | 9709 | } |
9710 | ||
8151bf30 | 9711 | /* Implement TARGET_ASM_TM_CLONE_TABLE_SECTION. */ |
9712 | ||
9713 | static section * | |
9714 | pa_som_tm_clone_table_section (void) | |
9715 | { | |
9716 | return som_tm_clone_table_section; | |
9717 | } | |
9718 | ||
52470889 | 9719 | /* On hpux10, the linker will give an error if we have a reference |
9720 | in the read-only data section to a symbol defined in a shared | |
9721 | library. Therefore, expressions that might require a reloc can | |
9722 | not be placed in the read-only data section. */ | |
9723 | ||
2f14b1f9 | 9724 | static section * |
b572d1a5 | 9725 | pa_select_section (tree exp, int reloc, |
9726 | unsigned HOST_WIDE_INT align ATTRIBUTE_UNUSED) | |
52470889 | 9727 | { |
9728 | if (TREE_CODE (exp) == VAR_DECL | |
9729 | && TREE_READONLY (exp) | |
9730 | && !TREE_THIS_VOLATILE (exp) | |
9731 | && DECL_INITIAL (exp) | |
9732 | && (DECL_INITIAL (exp) == error_mark_node | |
9733 | || TREE_CONSTANT (DECL_INITIAL (exp))) | |
9734 | && !reloc) | |
916c9cef | 9735 | { |
9736 | if (TARGET_SOM | |
9737 | && DECL_ONE_ONLY (exp) | |
9738 | && !DECL_WEAK (exp)) | |
2f14b1f9 | 9739 | return som_one_only_readonly_data_section; |
916c9cef | 9740 | else |
2f14b1f9 | 9741 | return readonly_data_section; |
916c9cef | 9742 | } |
ce45a448 | 9743 | else if (CONSTANT_CLASS_P (exp) && !reloc) |
2f14b1f9 | 9744 | return readonly_data_section; |
916c9cef | 9745 | else if (TARGET_SOM |
9746 | && TREE_CODE (exp) == VAR_DECL | |
9747 | && DECL_ONE_ONLY (exp) | |
2455c36b | 9748 | && !DECL_WEAK (exp)) |
2f14b1f9 | 9749 | return som_one_only_data_section; |
52470889 | 9750 | else |
2f14b1f9 | 9751 | return data_section; |
52470889 | 9752 | } |
1f3233d1 | 9753 | |
0e485231 | 9754 | /* Implement pa_reloc_rw_mask. */ |
9755 | ||
9756 | static int | |
9757 | pa_reloc_rw_mask (void) | |
9758 | { | |
9759 | /* We force (const (plus (symbol) (const_int))) to memory when the | |
9760 | const_int doesn't fit in a 14-bit integer. The SOM linker can't | |
9761 | handle this construct in read-only memory and we want to avoid | |
9762 | this for ELF. So, we always force an RTX needing relocation to | |
9763 | the data section. */ | |
9764 | return 3; | |
9765 | } | |
9766 | ||
67c1e638 | 9767 | static void |
5c1d8983 | 9768 | pa_globalize_label (FILE *stream, const char *name) |
67c1e638 | 9769 | { |
9770 | /* We only handle DATA objects here, functions are globalized in | |
9771 | ASM_DECLARE_FUNCTION_NAME. */ | |
9772 | if (! FUNCTION_NAME_P (name)) | |
9773 | { | |
9774 | fputs ("\t.EXPORT ", stream); | |
9775 | assemble_name (stream, name); | |
9776 | fputs (",DATA\n", stream); | |
9777 | } | |
9778 | } | |
b8debbe8 | 9779 | |
6644435d | 9780 | /* Worker function for TARGET_STRUCT_VALUE_RTX. */ |
9781 | ||
b8debbe8 | 9782 | static rtx |
9783 | pa_struct_value_rtx (tree fntype ATTRIBUTE_UNUSED, | |
9784 | int incoming ATTRIBUTE_UNUSED) | |
9785 | { | |
9786 | return gen_rtx_REG (Pmode, PA_STRUCT_VALUE_REGNUM); | |
9787 | } | |
9788 | ||
6644435d | 9789 | /* Worker function for TARGET_RETURN_IN_MEMORY. */ |
9790 | ||
b8debbe8 | 9791 | bool |
fb80456a | 9792 | pa_return_in_memory (const_tree type, const_tree fntype ATTRIBUTE_UNUSED) |
b8debbe8 | 9793 | { |
9794 | /* SOM ABI says that objects larger than 64 bits are returned in memory. | |
9795 | PA64 ABI says that objects larger than 128 bits are returned in memory. | |
9796 | Note, int_size_in_bytes can return -1 if the size of the object is | |
9797 | variable or larger than the maximum value that can be expressed as | |
9798 | a HOST_WIDE_INT. It can also return zero for an empty type. The | |
9799 | simplest way to handle variable and empty types is to pass them in | |
9800 | memory. This avoids problems in defining the boundaries of argument | |
9801 | slots, allocating registers, etc. */ | |
9802 | return (int_size_in_bytes (type) > (TARGET_64BIT ? 16 : 8) | |
9803 | || int_size_in_bytes (type) <= 0); | |
9804 | } | |
9805 | ||
5f43b4f6 | 9806 | /* Structure to hold declaration and name of external symbols that are |
9807 | emitted by GCC. We generate a vector of these symbols and output them | |
9808 | at the end of the file if and only if SYMBOL_REF_REFERENCED_P is true. | |
9809 | This avoids putting out names that are never really used. */ | |
9810 | ||
fb1e4f4a | 9811 | typedef struct GTY(()) extern_symbol |
5f43b4f6 | 9812 | { |
9813 | tree decl; | |
9814 | const char *name; | |
046bfc77 | 9815 | } extern_symbol; |
5f43b4f6 | 9816 | |
9817 | /* Define gc'd vector type for extern_symbol. */ | |
5f43b4f6 | 9818 | |
9819 | /* Vector of extern_symbol pointers. */ | |
f1f41a6c | 9820 | static GTY(()) vec<extern_symbol, va_gc> *extern_symbols; |
5f43b4f6 | 9821 | |
9822 | #ifdef ASM_OUTPUT_EXTERNAL_REAL | |
9823 | /* Mark DECL (name NAME) as an external reference (assembler output | |
9824 | file FILE). This saves the names to output at the end of the file | |
9825 | if actually referenced. */ | |
9826 | ||
9827 | void | |
9828 | pa_hpux_asm_output_external (FILE *file, tree decl, const char *name) | |
9829 | { | |
5f43b4f6 | 9830 | gcc_assert (file == asm_out_file); |
e82e4eb5 | 9831 | extern_symbol p = {decl, name}; |
f1f41a6c | 9832 | vec_safe_push (extern_symbols, p); |
5f43b4f6 | 9833 | } |
9834 | ||
9835 | /* Output text required at the end of an assembler file. | |
9836 | This includes deferred plabels and .import directives for | |
9837 | all external symbols that were actually referenced. */ | |
9838 | ||
9839 | static void | |
9840 | pa_hpux_file_end (void) | |
9841 | { | |
9842 | unsigned int i; | |
046bfc77 | 9843 | extern_symbol *p; |
5f43b4f6 | 9844 | |
bb1bc2ca | 9845 | if (!NO_DEFERRED_PROFILE_COUNTERS) |
9846 | output_deferred_profile_counters (); | |
9847 | ||
5f43b4f6 | 9848 | output_deferred_plabels (); |
9849 | ||
f1f41a6c | 9850 | for (i = 0; vec_safe_iterate (extern_symbols, i, &p); i++) |
5f43b4f6 | 9851 | { |
9852 | tree decl = p->decl; | |
9853 | ||
9854 | if (!TREE_ASM_WRITTEN (decl) | |
9855 | && SYMBOL_REF_REFERENCED_P (XEXP (DECL_RTL (decl), 0))) | |
9856 | ASM_OUTPUT_EXTERNAL_REAL (asm_out_file, decl, p->name); | |
9857 | } | |
9858 | ||
f1f41a6c | 9859 | vec_free (extern_symbols); |
5f43b4f6 | 9860 | } |
9861 | #endif | |
9862 | ||
7050ff73 | 9863 | /* Return true if a change from mode FROM to mode TO for a register |
8deb3959 | 9864 | in register class RCLASS is invalid. */ |
7050ff73 | 9865 | |
9866 | bool | |
3754d046 | 9867 | pa_cannot_change_mode_class (machine_mode from, machine_mode to, |
8deb3959 | 9868 | enum reg_class rclass) |
7050ff73 | 9869 | { |
9870 | if (from == to) | |
9871 | return false; | |
9872 | ||
9873 | /* Reject changes to/from complex and vector modes. */ | |
9874 | if (COMPLEX_MODE_P (from) || VECTOR_MODE_P (from) | |
9875 | || COMPLEX_MODE_P (to) || VECTOR_MODE_P (to)) | |
9876 | return true; | |
9877 | ||
9878 | if (GET_MODE_SIZE (from) == GET_MODE_SIZE (to)) | |
9879 | return false; | |
9880 | ||
9881 | /* There is no way to load QImode or HImode values directly from | |
9882 | memory. SImode loads to the FP registers are not zero extended. | |
9883 | On the 64-bit target, this conflicts with the definition of | |
9884 | LOAD_EXTEND_OP. Thus, we can't allow changing between modes | |
9885 | with different sizes in the floating-point registers. */ | |
8deb3959 | 9886 | if (MAYBE_FP_REG_CLASS_P (rclass)) |
7050ff73 | 9887 | return true; |
9888 | ||
9889 | /* HARD_REGNO_MODE_OK places modes with sizes larger than a word | |
9890 | in specific sets of registers. Thus, we cannot allow changing | |
9891 | to a larger mode when it's larger than a word. */ | |
9892 | if (GET_MODE_SIZE (to) > UNITS_PER_WORD | |
9893 | && GET_MODE_SIZE (to) > GET_MODE_SIZE (from)) | |
9894 | return true; | |
9895 | ||
9896 | return false; | |
9897 | } | |
9898 | ||
9899 | /* Returns TRUE if it is a good idea to tie two pseudo registers | |
9900 | when one has mode MODE1 and one has mode MODE2. | |
9901 | If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2, | |
9902 | for any hard reg, then this must be FALSE for correct output. | |
9903 | ||
9904 | We should return FALSE for QImode and HImode because these modes | |
9905 | are not ok in the floating-point registers. However, this prevents | |
9906 | tieing these modes to SImode and DImode in the general registers. | |
9907 | So, this isn't a good idea. We rely on HARD_REGNO_MODE_OK and | |
9908 | CANNOT_CHANGE_MODE_CLASS to prevent these modes from being used | |
9909 | in the floating-point registers. */ | |
9910 | ||
9911 | bool | |
3754d046 | 9912 | pa_modes_tieable_p (machine_mode mode1, machine_mode mode2) |
7050ff73 | 9913 | { |
9914 | /* Don't tie modes in different classes. */ | |
9915 | if (GET_MODE_CLASS (mode1) != GET_MODE_CLASS (mode2)) | |
9916 | return false; | |
9917 | ||
9918 | return true; | |
9919 | } | |
9920 | ||
623a97bc | 9921 | \f |
9922 | /* Length in units of the trampoline instruction code. */ | |
9923 | ||
9924 | #define TRAMPOLINE_CODE_SIZE (TARGET_64BIT ? 24 : (TARGET_PA_20 ? 32 : 40)) | |
9925 | ||
9926 | ||
9927 | /* Output assembler code for a block containing the constant parts | |
9928 | of a trampoline, leaving space for the variable parts.\ | |
9929 | ||
9930 | The trampoline sets the static chain pointer to STATIC_CHAIN_REGNUM | |
9931 | and then branches to the specified routine. | |
9932 | ||
9933 | This code template is copied from text segment to stack location | |
9934 | and then patched with pa_trampoline_init to contain valid values, | |
9935 | and then entered as a subroutine. | |
9936 | ||
9937 | It is best to keep this as small as possible to avoid having to | |
9938 | flush multiple lines in the cache. */ | |
9939 | ||
9940 | static void | |
9941 | pa_asm_trampoline_template (FILE *f) | |
9942 | { | |
9943 | if (!TARGET_64BIT) | |
9944 | { | |
9945 | fputs ("\tldw 36(%r22),%r21\n", f); | |
9946 | fputs ("\tbb,>=,n %r21,30,.+16\n", f); | |
9947 | if (ASSEMBLER_DIALECT == 0) | |
9948 | fputs ("\tdepi 0,31,2,%r21\n", f); | |
9949 | else | |
9950 | fputs ("\tdepwi 0,31,2,%r21\n", f); | |
9951 | fputs ("\tldw 4(%r21),%r19\n", f); | |
9952 | fputs ("\tldw 0(%r21),%r21\n", f); | |
9953 | if (TARGET_PA_20) | |
9954 | { | |
9955 | fputs ("\tbve (%r21)\n", f); | |
9956 | fputs ("\tldw 40(%r22),%r29\n", f); | |
9957 | fputs ("\t.word 0\n", f); | |
9958 | fputs ("\t.word 0\n", f); | |
9959 | } | |
9960 | else | |
9961 | { | |
9962 | fputs ("\tldsid (%r21),%r1\n", f); | |
9963 | fputs ("\tmtsp %r1,%sr0\n", f); | |
9964 | fputs ("\tbe 0(%sr0,%r21)\n", f); | |
9965 | fputs ("\tldw 40(%r22),%r29\n", f); | |
9966 | } | |
9967 | fputs ("\t.word 0\n", f); | |
9968 | fputs ("\t.word 0\n", f); | |
9969 | fputs ("\t.word 0\n", f); | |
9970 | fputs ("\t.word 0\n", f); | |
9971 | } | |
9972 | else | |
9973 | { | |
9974 | fputs ("\t.dword 0\n", f); | |
9975 | fputs ("\t.dword 0\n", f); | |
9976 | fputs ("\t.dword 0\n", f); | |
9977 | fputs ("\t.dword 0\n", f); | |
9978 | fputs ("\tmfia %r31\n", f); | |
9979 | fputs ("\tldd 24(%r31),%r1\n", f); | |
9980 | fputs ("\tldd 24(%r1),%r27\n", f); | |
9981 | fputs ("\tldd 16(%r1),%r1\n", f); | |
9982 | fputs ("\tbve (%r1)\n", f); | |
9983 | fputs ("\tldd 32(%r31),%r31\n", f); | |
9984 | fputs ("\t.dword 0 ; fptr\n", f); | |
9985 | fputs ("\t.dword 0 ; static link\n", f); | |
9986 | } | |
9987 | } | |
9988 | ||
9989 | /* Emit RTL insns to initialize the variable parts of a trampoline. | |
9990 | FNADDR is an RTX for the address of the function's pure code. | |
9991 | CXT is an RTX for the static chain value for the function. | |
9992 | ||
9993 | Move the function address to the trampoline template at offset 36. | |
9994 | Move the static chain value to trampoline template at offset 40. | |
9995 | Move the trampoline address to trampoline template at offset 44. | |
9996 | Move r19 to trampoline template at offset 48. The latter two | |
9997 | words create a plabel for the indirect call to the trampoline. | |
9998 | ||
9999 | A similar sequence is used for the 64-bit port but the plabel is | |
10000 | at the beginning of the trampoline. | |
10001 | ||
10002 | Finally, the cache entries for the trampoline code are flushed. | |
10003 | This is necessary to ensure that the trampoline instruction sequence | |
10004 | is written to memory prior to any attempts at prefetching the code | |
10005 | sequence. */ | |
10006 | ||
10007 | static void | |
10008 | pa_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value) | |
10009 | { | |
10010 | rtx fnaddr = XEXP (DECL_RTL (fndecl), 0); | |
10011 | rtx start_addr = gen_reg_rtx (Pmode); | |
10012 | rtx end_addr = gen_reg_rtx (Pmode); | |
10013 | rtx line_length = gen_reg_rtx (Pmode); | |
10014 | rtx r_tramp, tmp; | |
10015 | ||
10016 | emit_block_move (m_tramp, assemble_trampoline_template (), | |
10017 | GEN_INT (TRAMPOLINE_SIZE), BLOCK_OP_NORMAL); | |
10018 | r_tramp = force_reg (Pmode, XEXP (m_tramp, 0)); | |
10019 | ||
10020 | if (!TARGET_64BIT) | |
10021 | { | |
10022 | tmp = adjust_address (m_tramp, Pmode, 36); | |
10023 | emit_move_insn (tmp, fnaddr); | |
10024 | tmp = adjust_address (m_tramp, Pmode, 40); | |
10025 | emit_move_insn (tmp, chain_value); | |
10026 | ||
10027 | /* Create a fat pointer for the trampoline. */ | |
10028 | tmp = adjust_address (m_tramp, Pmode, 44); | |
10029 | emit_move_insn (tmp, r_tramp); | |
10030 | tmp = adjust_address (m_tramp, Pmode, 48); | |
10031 | emit_move_insn (tmp, gen_rtx_REG (Pmode, 19)); | |
10032 | ||
10033 | /* fdc and fic only use registers for the address to flush, | |
10034 | they do not accept integer displacements. We align the | |
10035 | start and end addresses to the beginning of their respective | |
10036 | cache lines to minimize the number of lines flushed. */ | |
10037 | emit_insn (gen_andsi3 (start_addr, r_tramp, | |
10038 | GEN_INT (-MIN_CACHELINE_SIZE))); | |
29c05e22 | 10039 | tmp = force_reg (Pmode, plus_constant (Pmode, r_tramp, |
10040 | TRAMPOLINE_CODE_SIZE-1)); | |
623a97bc | 10041 | emit_insn (gen_andsi3 (end_addr, tmp, |
10042 | GEN_INT (-MIN_CACHELINE_SIZE))); | |
10043 | emit_move_insn (line_length, GEN_INT (MIN_CACHELINE_SIZE)); | |
10044 | emit_insn (gen_dcacheflushsi (start_addr, end_addr, line_length)); | |
10045 | emit_insn (gen_icacheflushsi (start_addr, end_addr, line_length, | |
10046 | gen_reg_rtx (Pmode), | |
10047 | gen_reg_rtx (Pmode))); | |
10048 | } | |
10049 | else | |
10050 | { | |
10051 | tmp = adjust_address (m_tramp, Pmode, 56); | |
10052 | emit_move_insn (tmp, fnaddr); | |
10053 | tmp = adjust_address (m_tramp, Pmode, 64); | |
10054 | emit_move_insn (tmp, chain_value); | |
10055 | ||
10056 | /* Create a fat pointer for the trampoline. */ | |
10057 | tmp = adjust_address (m_tramp, Pmode, 16); | |
29c05e22 | 10058 | emit_move_insn (tmp, force_reg (Pmode, plus_constant (Pmode, |
10059 | r_tramp, 32))); | |
623a97bc | 10060 | tmp = adjust_address (m_tramp, Pmode, 24); |
10061 | emit_move_insn (tmp, gen_rtx_REG (Pmode, 27)); | |
10062 | ||
10063 | /* fdc and fic only use registers for the address to flush, | |
10064 | they do not accept integer displacements. We align the | |
10065 | start and end addresses to the beginning of their respective | |
10066 | cache lines to minimize the number of lines flushed. */ | |
29c05e22 | 10067 | tmp = force_reg (Pmode, plus_constant (Pmode, r_tramp, 32)); |
623a97bc | 10068 | emit_insn (gen_anddi3 (start_addr, tmp, |
10069 | GEN_INT (-MIN_CACHELINE_SIZE))); | |
29c05e22 | 10070 | tmp = force_reg (Pmode, plus_constant (Pmode, tmp, |
10071 | TRAMPOLINE_CODE_SIZE - 1)); | |
623a97bc | 10072 | emit_insn (gen_anddi3 (end_addr, tmp, |
10073 | GEN_INT (-MIN_CACHELINE_SIZE))); | |
10074 | emit_move_insn (line_length, GEN_INT (MIN_CACHELINE_SIZE)); | |
10075 | emit_insn (gen_dcacheflushdi (start_addr, end_addr, line_length)); | |
10076 | emit_insn (gen_icacheflushdi (start_addr, end_addr, line_length, | |
10077 | gen_reg_rtx (Pmode), | |
10078 | gen_reg_rtx (Pmode))); | |
10079 | } | |
01dd1649 | 10080 | |
10081 | #ifdef HAVE_ENABLE_EXECUTE_STACK | |
10082 | Â emit_library_call (gen_rtx_SYMBOL_REF (Pmode, "__enable_execute_stack"), | |
10083 | Â Â Â Â LCT_NORMAL, VOIDmode, 1, XEXP (m_tramp, 0), Pmode); | |
10084 | #endif | |
623a97bc | 10085 | } |
10086 | ||
10087 | /* Perform any machine-specific adjustment in the address of the trampoline. | |
10088 | ADDR contains the address that was passed to pa_trampoline_init. | |
10089 | Adjust the trampoline address to point to the plabel at offset 44. */ | |
10090 | ||
10091 | static rtx | |
10092 | pa_trampoline_adjust_address (rtx addr) | |
10093 | { | |
10094 | if (!TARGET_64BIT) | |
29c05e22 | 10095 | addr = memory_address (Pmode, plus_constant (Pmode, addr, 46)); |
623a97bc | 10096 | return addr; |
10097 | } | |
c731c4f5 | 10098 | |
10099 | static rtx | |
10100 | pa_delegitimize_address (rtx orig_x) | |
10101 | { | |
10102 | rtx x = delegitimize_mem_from_attrs (orig_x); | |
10103 | ||
10104 | if (GET_CODE (x) == LO_SUM | |
10105 | && GET_CODE (XEXP (x, 1)) == UNSPEC | |
10106 | && XINT (XEXP (x, 1), 1) == UNSPEC_DLTIND14R) | |
10107 | return gen_const_mem (Pmode, XVECEXP (XEXP (x, 1), 0, 0)); | |
10108 | return x; | |
10109 | } | |
623a97bc | 10110 | \f |
68bc9ae6 | 10111 | static rtx |
10112 | pa_internal_arg_pointer (void) | |
10113 | { | |
10114 | /* The argument pointer and the hard frame pointer are the same in | |
10115 | the 32-bit runtime, so we don't need a copy. */ | |
10116 | if (TARGET_64BIT) | |
10117 | return copy_to_reg (virtual_incoming_args_rtx); | |
10118 | else | |
10119 | return virtual_incoming_args_rtx; | |
10120 | } | |
10121 | ||
10122 | /* Given FROM and TO register numbers, say whether this elimination is allowed. | |
10123 | Frame pointer elimination is automatically handled. */ | |
10124 | ||
10125 | static bool | |
10126 | pa_can_eliminate (const int from, const int to) | |
10127 | { | |
10128 | /* The argument cannot be eliminated in the 64-bit runtime. */ | |
10129 | if (TARGET_64BIT && from == ARG_POINTER_REGNUM) | |
10130 | return false; | |
10131 | ||
10132 | return (from == HARD_FRAME_POINTER_REGNUM && to == STACK_POINTER_REGNUM | |
10133 | ? ! frame_pointer_needed | |
10134 | : true); | |
10135 | } | |
10136 | ||
10137 | /* Define the offset between two registers, FROM to be eliminated and its | |
10138 | replacement TO, at the start of a routine. */ | |
10139 | HOST_WIDE_INT | |
10140 | pa_initial_elimination_offset (int from, int to) | |
10141 | { | |
10142 | HOST_WIDE_INT offset; | |
10143 | ||
10144 | if ((from == HARD_FRAME_POINTER_REGNUM || from == FRAME_POINTER_REGNUM) | |
10145 | && to == STACK_POINTER_REGNUM) | |
e202682d | 10146 | offset = -pa_compute_frame_size (get_frame_size (), 0); |
68bc9ae6 | 10147 | else if (from == FRAME_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM) |
10148 | offset = 0; | |
10149 | else | |
10150 | gcc_unreachable (); | |
10151 | ||
10152 | return offset; | |
10153 | } | |
10154 | ||
b2d7ede1 | 10155 | static void |
10156 | pa_conditional_register_usage (void) | |
10157 | { | |
10158 | int i; | |
10159 | ||
10160 | if (!TARGET_64BIT && !TARGET_PA_11) | |
10161 | { | |
10162 | for (i = 56; i <= FP_REG_LAST; i++) | |
10163 | fixed_regs[i] = call_used_regs[i] = 1; | |
10164 | for (i = 33; i < 56; i += 2) | |
10165 | fixed_regs[i] = call_used_regs[i] = 1; | |
10166 | } | |
10167 | if (TARGET_DISABLE_FPREGS || TARGET_SOFT_FLOAT) | |
10168 | { | |
10169 | for (i = FP_REG_FIRST; i <= FP_REG_LAST; i++) | |
10170 | fixed_regs[i] = call_used_regs[i] = 1; | |
10171 | } | |
10172 | if (flag_pic) | |
10173 | fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1; | |
10174 | } | |
10175 | ||
0f9c87cc | 10176 | /* Target hook for c_mode_for_suffix. */ |
10177 | ||
3754d046 | 10178 | static machine_mode |
0f9c87cc | 10179 | pa_c_mode_for_suffix (char suffix) |
10180 | { | |
10181 | if (HPUX_LONG_DOUBLE_LIBRARY) | |
10182 | { | |
10183 | if (suffix == 'q') | |
10184 | return TFmode; | |
10185 | } | |
10186 | ||
10187 | return VOIDmode; | |
10188 | } | |
10189 | ||
c9b4a514 | 10190 | /* Target hook for function_section. */ |
10191 | ||
10192 | static section * | |
10193 | pa_function_section (tree decl, enum node_frequency freq, | |
10194 | bool startup, bool exit) | |
10195 | { | |
10196 | /* Put functions in text section if target doesn't have named sections. */ | |
218e3e4e | 10197 | if (!targetm_common.have_named_sections) |
c9b4a514 | 10198 | return text_section; |
10199 | ||
10200 | /* Force nested functions into the same section as the containing | |
10201 | function. */ | |
10202 | if (decl | |
738a6bda | 10203 | && DECL_SECTION_NAME (decl) == NULL |
c9b4a514 | 10204 | && DECL_CONTEXT (decl) != NULL_TREE |
10205 | && TREE_CODE (DECL_CONTEXT (decl)) == FUNCTION_DECL | |
738a6bda | 10206 | && DECL_SECTION_NAME (DECL_CONTEXT (decl)) == NULL) |
c9b4a514 | 10207 | return function_section (DECL_CONTEXT (decl)); |
10208 | ||
10209 | /* Otherwise, use the default function section. */ | |
10210 | return default_function_section (decl, freq, startup, exit); | |
10211 | } | |
10212 | ||
ca316360 | 10213 | /* Implement TARGET_LEGITIMATE_CONSTANT_P. |
10214 | ||
10215 | In 64-bit mode, we reject CONST_DOUBLES. We also reject CONST_INTS | |
10216 | that need more than three instructions to load prior to reload. This | |
10217 | limit is somewhat arbitrary. It takes three instructions to load a | |
10218 | CONST_INT from memory but two are memory accesses. It may be better | |
10219 | to increase the allowed range for CONST_INTS. We may also be able | |
10220 | to handle CONST_DOUBLES. */ | |
10221 | ||
10222 | static bool | |
3754d046 | 10223 | pa_legitimate_constant_p (machine_mode mode, rtx x) |
ca316360 | 10224 | { |
10225 | if (GET_MODE_CLASS (mode) == MODE_FLOAT && x != CONST0_RTX (mode)) | |
10226 | return false; | |
10227 | ||
10228 | if (!NEW_HP_ASSEMBLER && !TARGET_GAS && GET_CODE (x) == LABEL_REF) | |
10229 | return false; | |
10230 | ||
f784d2ac | 10231 | /* TLS_MODEL_GLOBAL_DYNAMIC and TLS_MODEL_LOCAL_DYNAMIC are not |
dfb5e2bf | 10232 | legitimate constants. The other variants can't be handled by |
10233 | the move patterns after reload starts. */ | |
53ea4c57 | 10234 | if (tls_referenced_p (x)) |
dfb5e2bf | 10235 | return false; |
f784d2ac | 10236 | |
ca316360 | 10237 | if (TARGET_64BIT && GET_CODE (x) == CONST_DOUBLE) |
10238 | return false; | |
10239 | ||
10240 | if (TARGET_64BIT | |
10241 | && HOST_BITS_PER_WIDE_INT > 32 | |
10242 | && GET_CODE (x) == CONST_INT | |
10243 | && !reload_in_progress | |
10244 | && !reload_completed | |
10245 | && !LEGITIMATE_64BIT_CONST_INT_P (INTVAL (x)) | |
1e5769bd | 10246 | && !pa_cint_ok_for_move (UINTVAL (x))) |
ca316360 | 10247 | return false; |
10248 | ||
7949e3eb | 10249 | if (function_label_operand (x, mode)) |
10250 | return false; | |
10251 | ||
ca316360 | 10252 | return true; |
10253 | } | |
10254 | ||
7949e3eb | 10255 | /* Implement TARGET_SECTION_TYPE_FLAGS. */ |
10256 | ||
10257 | static unsigned int | |
10258 | pa_section_type_flags (tree decl, const char *name, int reloc) | |
10259 | { | |
10260 | unsigned int flags; | |
10261 | ||
10262 | flags = default_section_type_flags (decl, name, reloc); | |
10263 | ||
10264 | /* Function labels are placed in the constant pool. This can | |
10265 | cause a section conflict if decls are put in ".data.rel.ro" | |
10266 | or ".data.rel.ro.local" using the __attribute__ construct. */ | |
10267 | if (strcmp (name, ".data.rel.ro") == 0 | |
10268 | || strcmp (name, ".data.rel.ro.local") == 0) | |
10269 | flags |= SECTION_WRITE | SECTION_RELRO; | |
10270 | ||
10271 | return flags; | |
10272 | } | |
10273 | ||
e8248b41 | 10274 | /* pa_legitimate_address_p recognizes an RTL expression that is a |
10275 | valid memory address for an instruction. The MODE argument is the | |
10276 | machine mode for the MEM expression that wants to use this address. | |
10277 | ||
10278 | On HP PA-RISC, the legitimate address forms are REG+SMALLINT, | |
10279 | REG+REG, and REG+(REG*SCALE). The indexed address forms are only | |
10280 | available with floating point loads and stores, and integer loads. | |
10281 | We get better code by allowing indexed addresses in the initial | |
10282 | RTL generation. | |
10283 | ||
10284 | The acceptance of indexed addresses as legitimate implies that we | |
10285 | must provide patterns for doing indexed integer stores, or the move | |
10286 | expanders must force the address of an indexed store to a register. | |
10287 | We have adopted the latter approach. | |
10288 | ||
10289 | Another function of pa_legitimate_address_p is to ensure that | |
10290 | the base register is a valid pointer for indexed instructions. | |
10291 | On targets that have non-equivalent space registers, we have to | |
10292 | know at the time of assembler output which register in a REG+REG | |
10293 | pair is the base register. The REG_POINTER flag is sometimes lost | |
10294 | in reload and the following passes, so it can't be relied on during | |
10295 | code generation. Thus, we either have to canonicalize the order | |
10296 | of the registers in REG+REG indexed addresses, or treat REG+REG | |
10297 | addresses separately and provide patterns for both permutations. | |
10298 | ||
10299 | The latter approach requires several hundred additional lines of | |
10300 | code in pa.md. The downside to canonicalizing is that a PLUS | |
10301 | in the wrong order can't combine to form to make a scaled indexed | |
10302 | memory operand. As we won't need to canonicalize the operands if | |
10303 | the REG_POINTER lossage can be fixed, it seems better canonicalize. | |
10304 | ||
10305 | We initially break out scaled indexed addresses in canonical order | |
10306 | in pa_emit_move_sequence. LEGITIMIZE_ADDRESS also canonicalizes | |
10307 | scaled indexed addresses during RTL generation. However, fold_rtx | |
10308 | has its own opinion on how the operands of a PLUS should be ordered. | |
10309 | If one of the operands is equivalent to a constant, it will make | |
10310 | that operand the second operand. As the base register is likely to | |
10311 | be equivalent to a SYMBOL_REF, we have made it the second operand. | |
10312 | ||
10313 | pa_legitimate_address_p accepts REG+REG as legitimate when the | |
10314 | operands are in the order INDEX+BASE on targets with non-equivalent | |
10315 | space registers, and in any order on targets with equivalent space | |
10316 | registers. It accepts both MULT+BASE and BASE+MULT for scaled indexing. | |
10317 | ||
10318 | We treat a SYMBOL_REF as legitimate if it is part of the current | |
10319 | function's constant-pool, because such addresses can actually be | |
10320 | output as REG+SMALLINT. */ | |
10321 | ||
10322 | static bool | |
3754d046 | 10323 | pa_legitimate_address_p (machine_mode mode, rtx x, bool strict) |
e8248b41 | 10324 | { |
10325 | if ((REG_P (x) | |
10326 | && (strict ? STRICT_REG_OK_FOR_BASE_P (x) | |
10327 | : REG_OK_FOR_BASE_P (x))) | |
10328 | || ((GET_CODE (x) == PRE_DEC || GET_CODE (x) == POST_DEC | |
10329 | || GET_CODE (x) == PRE_INC || GET_CODE (x) == POST_INC) | |
10330 | && REG_P (XEXP (x, 0)) | |
10331 | && (strict ? STRICT_REG_OK_FOR_BASE_P (XEXP (x, 0)) | |
10332 | : REG_OK_FOR_BASE_P (XEXP (x, 0))))) | |
10333 | return true; | |
10334 | ||
10335 | if (GET_CODE (x) == PLUS) | |
10336 | { | |
10337 | rtx base, index; | |
10338 | ||
10339 | /* For REG+REG, the base register should be in XEXP (x, 1), | |
10340 | so check it first. */ | |
10341 | if (REG_P (XEXP (x, 1)) | |
10342 | && (strict ? STRICT_REG_OK_FOR_BASE_P (XEXP (x, 1)) | |
10343 | : REG_OK_FOR_BASE_P (XEXP (x, 1)))) | |
10344 | base = XEXP (x, 1), index = XEXP (x, 0); | |
10345 | else if (REG_P (XEXP (x, 0)) | |
10346 | && (strict ? STRICT_REG_OK_FOR_BASE_P (XEXP (x, 0)) | |
10347 | : REG_OK_FOR_BASE_P (XEXP (x, 0)))) | |
10348 | base = XEXP (x, 0), index = XEXP (x, 1); | |
10349 | else | |
10350 | return false; | |
10351 | ||
10352 | if (GET_CODE (index) == CONST_INT) | |
10353 | { | |
10354 | if (INT_5_BITS (index)) | |
10355 | return true; | |
10356 | ||
10357 | /* When INT14_OK_STRICT is false, a secondary reload is needed | |
10358 | to adjust the displacement of SImode and DImode floating point | |
e59aa434 | 10359 | instructions but this may fail when the register also needs |
10360 | reloading. So, we return false when STRICT is true. We | |
e8248b41 | 10361 | also reject long displacements for float mode addresses since |
10362 | the majority of accesses will use floating point instructions | |
10363 | that don't support 14-bit offsets. */ | |
10364 | if (!INT14_OK_STRICT | |
e59aa434 | 10365 | && (strict || !(reload_in_progress || reload_completed)) |
172258a4 | 10366 | && mode != QImode |
10367 | && mode != HImode) | |
10368 | return false; | |
e8248b41 | 10369 | |
172258a4 | 10370 | return base14_operand (index, mode); |
e8248b41 | 10371 | } |
10372 | ||
10373 | if (!TARGET_DISABLE_INDEXING | |
10374 | /* Only accept the "canonical" INDEX+BASE operand order | |
10375 | on targets with non-equivalent space registers. */ | |
10376 | && (TARGET_NO_SPACE_REGS | |
10377 | ? REG_P (index) | |
10378 | : (base == XEXP (x, 1) && REG_P (index) | |
10379 | && (reload_completed | |
10380 | || (reload_in_progress && HARD_REGISTER_P (base)) | |
10381 | || REG_POINTER (base)) | |
10382 | && (reload_completed | |
10383 | || (reload_in_progress && HARD_REGISTER_P (index)) | |
10384 | || !REG_POINTER (index)))) | |
10385 | && MODE_OK_FOR_UNSCALED_INDEXING_P (mode) | |
10386 | && (strict ? STRICT_REG_OK_FOR_INDEX_P (index) | |
10387 | : REG_OK_FOR_INDEX_P (index)) | |
10388 | && borx_reg_operand (base, Pmode) | |
10389 | && borx_reg_operand (index, Pmode)) | |
10390 | return true; | |
10391 | ||
10392 | if (!TARGET_DISABLE_INDEXING | |
10393 | && GET_CODE (index) == MULT | |
10394 | && MODE_OK_FOR_SCALED_INDEXING_P (mode) | |
10395 | && REG_P (XEXP (index, 0)) | |
10396 | && GET_MODE (XEXP (index, 0)) == Pmode | |
10397 | && (strict ? STRICT_REG_OK_FOR_INDEX_P (XEXP (index, 0)) | |
10398 | : REG_OK_FOR_INDEX_P (XEXP (index, 0))) | |
10399 | && GET_CODE (XEXP (index, 1)) == CONST_INT | |
10400 | && INTVAL (XEXP (index, 1)) | |
10401 | == (HOST_WIDE_INT) GET_MODE_SIZE (mode) | |
10402 | && borx_reg_operand (base, Pmode)) | |
10403 | return true; | |
10404 | ||
10405 | return false; | |
10406 | } | |
10407 | ||
10408 | if (GET_CODE (x) == LO_SUM) | |
10409 | { | |
10410 | rtx y = XEXP (x, 0); | |
10411 | ||
10412 | if (GET_CODE (y) == SUBREG) | |
10413 | y = SUBREG_REG (y); | |
10414 | ||
10415 | if (REG_P (y) | |
10416 | && (strict ? STRICT_REG_OK_FOR_BASE_P (y) | |
10417 | : REG_OK_FOR_BASE_P (y))) | |
10418 | { | |
10419 | /* Needed for -fPIC */ | |
10420 | if (mode == Pmode | |
10421 | && GET_CODE (XEXP (x, 1)) == UNSPEC) | |
10422 | return true; | |
10423 | ||
10424 | if (!INT14_OK_STRICT | |
e59aa434 | 10425 | && (strict || !(reload_in_progress || reload_completed)) |
172258a4 | 10426 | && mode != QImode |
10427 | && mode != HImode) | |
10428 | return false; | |
e8248b41 | 10429 | |
10430 | if (CONSTANT_P (XEXP (x, 1))) | |
10431 | return true; | |
10432 | } | |
10433 | return false; | |
10434 | } | |
10435 | ||
10436 | if (GET_CODE (x) == CONST_INT && INT_5_BITS (x)) | |
10437 | return true; | |
10438 | ||
10439 | return false; | |
10440 | } | |
10441 | ||
10442 | /* Look for machine dependent ways to make the invalid address AD a | |
10443 | valid address. | |
10444 | ||
10445 | For the PA, transform: | |
10446 | ||
10447 | memory(X + <large int>) | |
10448 | ||
10449 | into: | |
10450 | ||
10451 | if (<large int> & mask) >= 16 | |
10452 | Y = (<large int> & ~mask) + mask + 1 Round up. | |
10453 | else | |
10454 | Y = (<large int> & ~mask) Round down. | |
10455 | Z = X + Y | |
10456 | memory (Z + (<large int> - Y)); | |
10457 | ||
10458 | This makes reload inheritance and reload_cse work better since Z | |
10459 | can be reused. | |
10460 | ||
10461 | There may be more opportunities to improve code with this hook. */ | |
10462 | ||
10463 | rtx | |
3754d046 | 10464 | pa_legitimize_reload_address (rtx ad, machine_mode mode, |
e8248b41 | 10465 | int opnum, int type, |
10466 | int ind_levels ATTRIBUTE_UNUSED) | |
10467 | { | |
10468 | long offset, newoffset, mask; | |
10469 | rtx new_rtx, temp = NULL_RTX; | |
10470 | ||
10471 | mask = (GET_MODE_CLASS (mode) == MODE_FLOAT | |
10472 | && !INT14_OK_STRICT ? 0x1f : 0x3fff); | |
10473 | ||
10474 | if (optimize && GET_CODE (ad) == PLUS) | |
10475 | temp = simplify_binary_operation (PLUS, Pmode, | |
10476 | XEXP (ad, 0), XEXP (ad, 1)); | |
10477 | ||
10478 | new_rtx = temp ? temp : ad; | |
10479 | ||
10480 | if (optimize | |
10481 | && GET_CODE (new_rtx) == PLUS | |
10482 | && GET_CODE (XEXP (new_rtx, 0)) == REG | |
10483 | && GET_CODE (XEXP (new_rtx, 1)) == CONST_INT) | |
10484 | { | |
10485 | offset = INTVAL (XEXP ((new_rtx), 1)); | |
10486 | ||
10487 | /* Choose rounding direction. Round up if we are >= halfway. */ | |
10488 | if ((offset & mask) >= ((mask + 1) / 2)) | |
10489 | newoffset = (offset & ~mask) + mask + 1; | |
10490 | else | |
10491 | newoffset = offset & ~mask; | |
10492 | ||
10493 | /* Ensure that long displacements are aligned. */ | |
10494 | if (mask == 0x3fff | |
10495 | && (GET_MODE_CLASS (mode) == MODE_FLOAT | |
10496 | || (TARGET_64BIT && (mode) == DImode))) | |
10497 | newoffset &= ~(GET_MODE_SIZE (mode) - 1); | |
10498 | ||
10499 | if (newoffset != 0 && VAL_14_BITS_P (newoffset)) | |
10500 | { | |
10501 | temp = gen_rtx_PLUS (Pmode, XEXP (new_rtx, 0), | |
10502 | GEN_INT (newoffset)); | |
10503 | ad = gen_rtx_PLUS (Pmode, temp, GEN_INT (offset - newoffset)); | |
10504 | push_reload (XEXP (ad, 0), 0, &XEXP (ad, 0), 0, | |
10505 | BASE_REG_CLASS, Pmode, VOIDmode, 0, 0, | |
10506 | opnum, (enum reload_type) type); | |
10507 | return ad; | |
10508 | } | |
10509 | } | |
10510 | ||
10511 | return NULL_RTX; | |
10512 | } | |
10513 | ||
f4d21d1e | 10514 | /* Output address vector. */ |
10515 | ||
10516 | void | |
10517 | pa_output_addr_vec (rtx lab, rtx body) | |
10518 | { | |
10519 | int idx, vlen = XVECLEN (body, 0); | |
10520 | ||
10521 | targetm.asm_out.internal_label (asm_out_file, "L", CODE_LABEL_NUMBER (lab)); | |
10522 | if (TARGET_GAS) | |
10523 | fputs ("\t.begin_brtab\n", asm_out_file); | |
10524 | for (idx = 0; idx < vlen; idx++) | |
10525 | { | |
10526 | ASM_OUTPUT_ADDR_VEC_ELT | |
10527 | (asm_out_file, CODE_LABEL_NUMBER (XEXP (XVECEXP (body, 0, idx), 0))); | |
10528 | } | |
10529 | if (TARGET_GAS) | |
10530 | fputs ("\t.end_brtab\n", asm_out_file); | |
10531 | } | |
10532 | ||
10533 | /* Output address difference vector. */ | |
10534 | ||
10535 | void | |
10536 | pa_output_addr_diff_vec (rtx lab, rtx body) | |
10537 | { | |
10538 | rtx base = XEXP (XEXP (body, 0), 0); | |
10539 | int idx, vlen = XVECLEN (body, 1); | |
10540 | ||
10541 | targetm.asm_out.internal_label (asm_out_file, "L", CODE_LABEL_NUMBER (lab)); | |
10542 | if (TARGET_GAS) | |
10543 | fputs ("\t.begin_brtab\n", asm_out_file); | |
10544 | for (idx = 0; idx < vlen; idx++) | |
10545 | { | |
10546 | ASM_OUTPUT_ADDR_DIFF_ELT | |
10547 | (asm_out_file, | |
10548 | body, | |
10549 | CODE_LABEL_NUMBER (XEXP (XVECEXP (body, 1, idx), 0)), | |
10550 | CODE_LABEL_NUMBER (base)); | |
10551 | } | |
10552 | if (TARGET_GAS) | |
10553 | fputs ("\t.end_brtab\n", asm_out_file); | |
10554 | } | |
10555 | ||
8ef0dc80 | 10556 | /* This is a helper function for the other atomic operations. This function |
10557 | emits a loop that contains SEQ that iterates until a compare-and-swap | |
10558 | operation at the end succeeds. MEM is the memory to be modified. SEQ is | |
10559 | a set of instructions that takes a value from OLD_REG as an input and | |
10560 | produces a value in NEW_REG as an output. Before SEQ, OLD_REG will be | |
10561 | set to the current contents of MEM. After SEQ, a compare-and-swap will | |
10562 | attempt to update MEM with NEW_REG. The function returns true when the | |
10563 | loop was generated successfully. */ | |
10564 | ||
10565 | static bool | |
10566 | pa_expand_compare_and_swap_loop (rtx mem, rtx old_reg, rtx new_reg, rtx seq) | |
10567 | { | |
10568 | machine_mode mode = GET_MODE (mem); | |
10569 | rtx_code_label *label; | |
10570 | rtx cmp_reg, success, oldval; | |
10571 | ||
10572 | /* The loop we want to generate looks like | |
10573 | ||
10574 | cmp_reg = mem; | |
10575 | label: | |
10576 | old_reg = cmp_reg; | |
10577 | seq; | |
10578 | (success, cmp_reg) = compare-and-swap(mem, old_reg, new_reg) | |
10579 | if (success) | |
10580 | goto label; | |
10581 | ||
10582 | Note that we only do the plain load from memory once. Subsequent | |
10583 | iterations use the value loaded by the compare-and-swap pattern. */ | |
10584 | ||
10585 | label = gen_label_rtx (); | |
10586 | cmp_reg = gen_reg_rtx (mode); | |
10587 | ||
10588 | emit_move_insn (cmp_reg, mem); | |
10589 | emit_label (label); | |
10590 | emit_move_insn (old_reg, cmp_reg); | |
10591 | if (seq) | |
10592 | emit_insn (seq); | |
10593 | ||
10594 | success = NULL_RTX; | |
10595 | oldval = cmp_reg; | |
10596 | if (!expand_atomic_compare_and_swap (&success, &oldval, mem, old_reg, | |
10597 | new_reg, false, MEMMODEL_SYNC_SEQ_CST, | |
10598 | MEMMODEL_RELAXED)) | |
10599 | return false; | |
10600 | ||
10601 | if (oldval != cmp_reg) | |
10602 | emit_move_insn (cmp_reg, oldval); | |
10603 | ||
10604 | /* Mark this jump predicted not taken. */ | |
10605 | emit_cmp_and_jump_insns (success, const0_rtx, EQ, const0_rtx, | |
10606 | GET_MODE (success), 1, label, 0); | |
10607 | return true; | |
10608 | } | |
10609 | ||
10610 | /* This function tries to implement an atomic exchange operation using a | |
10611 | compare_and_swap loop. VAL is written to *MEM. The previous contents of | |
10612 | *MEM are returned, using TARGET if possible. No memory model is required | |
10613 | since a compare_and_swap loop is seq-cst. */ | |
10614 | ||
10615 | rtx | |
10616 | pa_maybe_emit_compare_and_swap_exchange_loop (rtx target, rtx mem, rtx val) | |
10617 | { | |
10618 | machine_mode mode = GET_MODE (mem); | |
10619 | ||
10620 | if (can_compare_and_swap_p (mode, true)) | |
10621 | { | |
10622 | if (!target || !register_operand (target, mode)) | |
10623 | target = gen_reg_rtx (mode); | |
10624 | if (pa_expand_compare_and_swap_loop (mem, target, val, NULL_RTX)) | |
10625 | return target; | |
10626 | } | |
10627 | ||
10628 | return NULL_RTX; | |
10629 | } | |
10630 | ||
1f3233d1 | 10631 | #include "gt-pa.h" |