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87ad11b0 | 1 | /* Subroutines for insn-output.c for HPPA. |
a9ac13e4 | 2 | Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
d9e3874e | 3 | 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. |
87ad11b0 | 4 | Contributed by Tim Moore (moore@cs.utah.edu), based on sparc.c |
5 | ||
5c1d8983 | 6 | This file is part of GCC. |
87ad11b0 | 7 | |
5c1d8983 | 8 | GCC is free software; you can redistribute it and/or modify |
87ad11b0 | 9 | it under the terms of the GNU General Public License as published by |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
5c1d8983 | 13 | GCC is distributed in the hope that it will be useful, |
87ad11b0 | 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
5c1d8983 | 19 | along with GCC; see the file COPYING. If not, write to |
dbddc6c4 | 20 | the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
87ad11b0 | 22 | |
87ad11b0 | 23 | #include "config.h" |
b1ca791d | 24 | #include "system.h" |
805e22b2 | 25 | #include "coretypes.h" |
26 | #include "tm.h" | |
87ad11b0 | 27 | #include "rtl.h" |
28 | #include "regs.h" | |
29 | #include "hard-reg-set.h" | |
30 | #include "real.h" | |
31 | #include "insn-config.h" | |
32 | #include "conditions.h" | |
87ad11b0 | 33 | #include "insn-attr.h" |
34 | #include "flags.h" | |
35 | #include "tree.h" | |
9d2d8bd6 | 36 | #include "output.h" |
a584fe8a | 37 | #include "except.h" |
32509e56 | 38 | #include "expr.h" |
d8fc4d0b | 39 | #include "optabs.h" |
d8fc4d0b | 40 | #include "reload.h" |
d7e2f694 | 41 | #include "integrate.h" |
0a893c29 | 42 | #include "function.h" |
b1ca791d | 43 | #include "toplev.h" |
5cb4669a | 44 | #include "ggc.h" |
611a88e1 | 45 | #include "recog.h" |
a584fe8a | 46 | #include "predict.h" |
611a88e1 | 47 | #include "tm_p.h" |
a767736d | 48 | #include "target.h" |
49 | #include "target-def.h" | |
87ad11b0 | 50 | |
cde3e16c | 51 | /* Return nonzero if there is a bypass for the output of |
52 | OUT_INSN and the fp store IN_INSN. */ | |
53 | int | |
5c1d8983 | 54 | hppa_fpstore_bypass_p (rtx out_insn, rtx in_insn) |
cde3e16c | 55 | { |
56 | enum machine_mode store_mode; | |
57 | enum machine_mode other_mode; | |
58 | rtx set; | |
59 | ||
60 | if (recog_memoized (in_insn) < 0 | |
61 | || get_attr_type (in_insn) != TYPE_FPSTORE | |
62 | || recog_memoized (out_insn) < 0) | |
63 | return 0; | |
64 | ||
65 | store_mode = GET_MODE (SET_SRC (PATTERN (in_insn))); | |
66 | ||
67 | set = single_set (out_insn); | |
68 | if (!set) | |
69 | return 0; | |
70 | ||
71 | other_mode = GET_MODE (SET_SRC (set)); | |
72 | ||
73 | return (GET_MODE_SIZE (store_mode) == GET_MODE_SIZE (other_mode)); | |
74 | } | |
75 | ||
76 | ||
cc858176 | 77 | #ifndef DO_FRAME_NOTES |
78 | #ifdef INCOMING_RETURN_ADDR_RTX | |
79 | #define DO_FRAME_NOTES 1 | |
80 | #else | |
81 | #define DO_FRAME_NOTES 0 | |
82 | #endif | |
83 | #endif | |
84 | ||
dbd3d89d | 85 | static void copy_reg_pointer (rtx, rtx); |
320e1276 | 86 | static void fix_range (const char *); |
bd57250e | 87 | static bool pa_handle_option (size_t, const char *, int); |
5c1d8983 | 88 | static int hppa_address_cost (rtx); |
89 | static bool hppa_rtx_costs (rtx, int, int, int *); | |
90 | static inline rtx force_mode (enum machine_mode, rtx); | |
91 | static void pa_reorg (void); | |
92 | static void pa_combine_instructions (void); | |
93 | static int pa_can_combine_p (rtx, rtx, rtx, int, rtx, rtx, rtx); | |
94 | static int forward_branch_p (rtx); | |
5c1d8983 | 95 | static void compute_zdepwi_operands (unsigned HOST_WIDE_INT, unsigned *); |
008c057d | 96 | static int compute_movmem_length (rtx); |
97 | static int compute_clrmem_length (rtx); | |
5c1d8983 | 98 | static bool pa_assemble_integer (rtx, unsigned int, int); |
99 | static void remove_useless_addtr_insns (int); | |
6bcdc1fb | 100 | static void store_reg (int, HOST_WIDE_INT, int); |
101 | static void store_reg_modify (int, int, HOST_WIDE_INT); | |
102 | static void load_reg (int, HOST_WIDE_INT, int); | |
103 | static void set_reg_plus_d (int, int, HOST_WIDE_INT, int); | |
5c1d8983 | 104 | static void pa_output_function_prologue (FILE *, HOST_WIDE_INT); |
105 | static void update_total_code_bytes (int); | |
106 | static void pa_output_function_epilogue (FILE *, HOST_WIDE_INT); | |
107 | static int pa_adjust_cost (rtx, rtx, rtx, int); | |
108 | static int pa_adjust_priority (rtx, int); | |
109 | static int pa_issue_rate (void); | |
2f14b1f9 | 110 | static void pa_som_asm_init_sections (void) ATTRIBUTE_UNUSED; |
111 | static section *pa_select_section (tree, int, unsigned HOST_WIDE_INT) | |
52470889 | 112 | ATTRIBUTE_UNUSED; |
5c1d8983 | 113 | static void pa_encode_section_info (tree, rtx, int); |
114 | static const char *pa_strip_name_encoding (const char *); | |
115 | static bool pa_function_ok_for_sibcall (tree, tree); | |
116 | static void pa_globalize_label (FILE *, const char *) | |
63b8cd48 | 117 | ATTRIBUTE_UNUSED; |
5c1d8983 | 118 | static void pa_asm_output_mi_thunk (FILE *, tree, HOST_WIDE_INT, |
119 | HOST_WIDE_INT, tree); | |
de419443 | 120 | #if !defined(USE_COLLECT2) |
5c1d8983 | 121 | static void pa_asm_out_constructor (rtx, int); |
122 | static void pa_asm_out_destructor (rtx, int); | |
de419443 | 123 | #endif |
5c1d8983 | 124 | static void pa_init_builtins (void); |
b8debbe8 | 125 | static rtx hppa_builtin_saveregs (void); |
4c33eb68 | 126 | static tree hppa_gimplify_va_arg_expr (tree, tree, tree *, tree *); |
2b1e7cc3 | 127 | static bool pa_scalar_mode_supported_p (enum machine_mode); |
280566a7 | 128 | static bool pa_commutative_p (rtx x, int outer_code); |
5c1d8983 | 129 | static void copy_fp_args (rtx) ATTRIBUTE_UNUSED; |
130 | static int length_fp_args (rtx) ATTRIBUTE_UNUSED; | |
5c1d8983 | 131 | static inline void pa_file_start_level (void) ATTRIBUTE_UNUSED; |
132 | static inline void pa_file_start_space (int) ATTRIBUTE_UNUSED; | |
133 | static inline void pa_file_start_file (int) ATTRIBUTE_UNUSED; | |
134 | static inline void pa_file_start_mcount (const char*) ATTRIBUTE_UNUSED; | |
135 | static void pa_elf_file_start (void) ATTRIBUTE_UNUSED; | |
136 | static void pa_som_file_start (void) ATTRIBUTE_UNUSED; | |
137 | static void pa_linux_file_start (void) ATTRIBUTE_UNUSED; | |
138 | static void pa_hpux64_gas_file_start (void) ATTRIBUTE_UNUSED; | |
139 | static void pa_hpux64_hpas_file_start (void) ATTRIBUTE_UNUSED; | |
140 | static void output_deferred_plabels (void); | |
bb1bc2ca | 141 | static void output_deferred_profile_counters (void) ATTRIBUTE_UNUSED; |
5f43b4f6 | 142 | #ifdef ASM_OUTPUT_EXTERNAL_REAL |
143 | static void pa_hpux_file_end (void); | |
144 | #endif | |
f2f543a3 | 145 | #ifdef HPUX_LONG_DOUBLE_LIBRARY |
146 | static void pa_hpux_init_libfuncs (void); | |
147 | #endif | |
b8debbe8 | 148 | static rtx pa_struct_value_rtx (tree, int); |
f054eb3c | 149 | static bool pa_pass_by_reference (CUMULATIVE_ARGS *, enum machine_mode, |
b981d932 | 150 | tree, bool); |
f054eb3c | 151 | static int pa_arg_partial_bytes (CUMULATIVE_ARGS *, enum machine_mode, |
152 | tree, bool); | |
916c9cef | 153 | static struct machine_function * pa_init_machine_status (void); |
5655a0e5 | 154 | static enum reg_class pa_secondary_reload (bool, rtx, enum reg_class, |
155 | enum machine_mode, | |
156 | secondary_reload_info *); | |
b981d932 | 157 | |
9d3ddb8f | 158 | |
2f14b1f9 | 159 | /* The following extra sections are only used for SOM. */ |
160 | static GTY(()) section *som_readonly_data_section; | |
161 | static GTY(()) section *som_one_only_readonly_data_section; | |
162 | static GTY(()) section *som_one_only_data_section; | |
163 | ||
87ad11b0 | 164 | /* Save the operands last given to a compare for use when we |
165 | generate a scc or bcc insn. */ | |
87ad11b0 | 166 | rtx hppa_compare_op0, hppa_compare_op1; |
167 | enum cmp_type hppa_branch_type; | |
168 | ||
320e1276 | 169 | /* Which cpu we are scheduling for. */ |
bd57250e | 170 | enum processor_type pa_cpu = TARGET_SCHED_DEFAULT; |
8ab32933 | 171 | |
172 | /* The UNIX standard to use for predefines and linking. */ | |
bd57250e | 173 | int flag_pa_unix = TARGET_HPUX_11_11 ? 1998 : TARGET_HPUX_10_10 ? 1995 : 1993; |
8ab32933 | 174 | |
a9960cdc | 175 | /* Counts for the number of callee-saved general and floating point |
176 | registers which were saved by the current function's prologue. */ | |
177 | static int gr_saved, fr_saved; | |
178 | ||
5c1d8983 | 179 | static rtx find_addr_reg (rtx); |
87ad11b0 | 180 | |
2247cc5f | 181 | /* Keep track of the number of bytes we have output in the CODE subspace |
06ddb6f8 | 182 | during this compilation so we'll know when to emit inline long-calls. */ |
ece88821 | 183 | unsigned long total_code_bytes; |
06ddb6f8 | 184 | |
2247cc5f | 185 | /* The last address of the previous function plus the number of bytes in |
186 | associated thunks that have been output. This is used to determine if | |
187 | a thunk can use an IA-relative branch to reach its target function. */ | |
188 | static int last_address; | |
189 | ||
e3f53689 | 190 | /* Variables to handle plabels that we discover are necessary at assembly |
01cc3b75 | 191 | output time. They are output after the current function. */ |
1f3233d1 | 192 | struct deferred_plabel GTY(()) |
e3f53689 | 193 | { |
194 | rtx internal_label; | |
5f43b4f6 | 195 | rtx symbol; |
1f3233d1 | 196 | }; |
197 | static GTY((length ("n_deferred_plabels"))) struct deferred_plabel * | |
198 | deferred_plabels; | |
e11bd7e5 | 199 | static size_t n_deferred_plabels = 0; |
f6940372 | 200 | |
a767736d | 201 | \f |
202 | /* Initialize the GCC target structure. */ | |
58356836 | 203 | |
204 | #undef TARGET_ASM_ALIGNED_HI_OP | |
205 | #define TARGET_ASM_ALIGNED_HI_OP "\t.half\t" | |
206 | #undef TARGET_ASM_ALIGNED_SI_OP | |
207 | #define TARGET_ASM_ALIGNED_SI_OP "\t.word\t" | |
208 | #undef TARGET_ASM_ALIGNED_DI_OP | |
209 | #define TARGET_ASM_ALIGNED_DI_OP "\t.dword\t" | |
210 | #undef TARGET_ASM_UNALIGNED_HI_OP | |
211 | #define TARGET_ASM_UNALIGNED_HI_OP TARGET_ASM_ALIGNED_HI_OP | |
212 | #undef TARGET_ASM_UNALIGNED_SI_OP | |
213 | #define TARGET_ASM_UNALIGNED_SI_OP TARGET_ASM_ALIGNED_SI_OP | |
214 | #undef TARGET_ASM_UNALIGNED_DI_OP | |
215 | #define TARGET_ASM_UNALIGNED_DI_OP TARGET_ASM_ALIGNED_DI_OP | |
216 | #undef TARGET_ASM_INTEGER | |
217 | #define TARGET_ASM_INTEGER pa_assemble_integer | |
218 | ||
17d9b0c3 | 219 | #undef TARGET_ASM_FUNCTION_PROLOGUE |
220 | #define TARGET_ASM_FUNCTION_PROLOGUE pa_output_function_prologue | |
221 | #undef TARGET_ASM_FUNCTION_EPILOGUE | |
222 | #define TARGET_ASM_FUNCTION_EPILOGUE pa_output_function_epilogue | |
e3f53689 | 223 | |
747af5e7 | 224 | #undef TARGET_SCHED_ADJUST_COST |
225 | #define TARGET_SCHED_ADJUST_COST pa_adjust_cost | |
226 | #undef TARGET_SCHED_ADJUST_PRIORITY | |
227 | #define TARGET_SCHED_ADJUST_PRIORITY pa_adjust_priority | |
228 | #undef TARGET_SCHED_ISSUE_RATE | |
229 | #define TARGET_SCHED_ISSUE_RATE pa_issue_rate | |
230 | ||
7811991d | 231 | #undef TARGET_ENCODE_SECTION_INFO |
232 | #define TARGET_ENCODE_SECTION_INFO pa_encode_section_info | |
7b4a38a6 | 233 | #undef TARGET_STRIP_NAME_ENCODING |
234 | #define TARGET_STRIP_NAME_ENCODING pa_strip_name_encoding | |
7811991d | 235 | |
805e22b2 | 236 | #undef TARGET_FUNCTION_OK_FOR_SIBCALL |
237 | #define TARGET_FUNCTION_OK_FOR_SIBCALL pa_function_ok_for_sibcall | |
238 | ||
280566a7 | 239 | #undef TARGET_COMMUTATIVE_P |
240 | #define TARGET_COMMUTATIVE_P pa_commutative_p | |
241 | ||
6988553d | 242 | #undef TARGET_ASM_OUTPUT_MI_THUNK |
243 | #define TARGET_ASM_OUTPUT_MI_THUNK pa_asm_output_mi_thunk | |
eb344f43 | 244 | #undef TARGET_ASM_CAN_OUTPUT_MI_THUNK |
245 | #define TARGET_ASM_CAN_OUTPUT_MI_THUNK default_can_output_mi_thunk_no_vcall | |
6988553d | 246 | |
f6940372 | 247 | #undef TARGET_ASM_FILE_END |
5f43b4f6 | 248 | #ifdef ASM_OUTPUT_EXTERNAL_REAL |
249 | #define TARGET_ASM_FILE_END pa_hpux_file_end | |
250 | #else | |
f6940372 | 251 | #define TARGET_ASM_FILE_END output_deferred_plabels |
5f43b4f6 | 252 | #endif |
f6940372 | 253 | |
de419443 | 254 | #if !defined(USE_COLLECT2) |
255 | #undef TARGET_ASM_CONSTRUCTOR | |
256 | #define TARGET_ASM_CONSTRUCTOR pa_asm_out_constructor | |
257 | #undef TARGET_ASM_DESTRUCTOR | |
258 | #define TARGET_ASM_DESTRUCTOR pa_asm_out_destructor | |
259 | #endif | |
260 | ||
bd57250e | 261 | #undef TARGET_DEFAULT_TARGET_FLAGS |
262 | #define TARGET_DEFAULT_TARGET_FLAGS (TARGET_DEFAULT | TARGET_CPU_DEFAULT) | |
263 | #undef TARGET_HANDLE_OPTION | |
264 | #define TARGET_HANDLE_OPTION pa_handle_option | |
265 | ||
ffa8918b | 266 | #undef TARGET_INIT_BUILTINS |
267 | #define TARGET_INIT_BUILTINS pa_init_builtins | |
268 | ||
fab7adbf | 269 | #undef TARGET_RTX_COSTS |
270 | #define TARGET_RTX_COSTS hppa_rtx_costs | |
ec0457a8 | 271 | #undef TARGET_ADDRESS_COST |
272 | #define TARGET_ADDRESS_COST hppa_address_cost | |
fab7adbf | 273 | |
2efea8c0 | 274 | #undef TARGET_MACHINE_DEPENDENT_REORG |
275 | #define TARGET_MACHINE_DEPENDENT_REORG pa_reorg | |
276 | ||
f2f543a3 | 277 | #ifdef HPUX_LONG_DOUBLE_LIBRARY |
278 | #undef TARGET_INIT_LIBFUNCS | |
279 | #define TARGET_INIT_LIBFUNCS pa_hpux_init_libfuncs | |
280 | #endif | |
281 | ||
b8debbe8 | 282 | #undef TARGET_PROMOTE_FUNCTION_RETURN |
283 | #define TARGET_PROMOTE_FUNCTION_RETURN hook_bool_tree_true | |
284 | #undef TARGET_PROMOTE_PROTOTYPES | |
285 | #define TARGET_PROMOTE_PROTOTYPES hook_bool_tree_true | |
286 | ||
287 | #undef TARGET_STRUCT_VALUE_RTX | |
288 | #define TARGET_STRUCT_VALUE_RTX pa_struct_value_rtx | |
289 | #undef TARGET_RETURN_IN_MEMORY | |
290 | #define TARGET_RETURN_IN_MEMORY pa_return_in_memory | |
0336f0f0 | 291 | #undef TARGET_MUST_PASS_IN_STACK |
292 | #define TARGET_MUST_PASS_IN_STACK must_pass_in_stack_var_size | |
b981d932 | 293 | #undef TARGET_PASS_BY_REFERENCE |
294 | #define TARGET_PASS_BY_REFERENCE pa_pass_by_reference | |
13f08ee7 | 295 | #undef TARGET_CALLEE_COPIES |
296 | #define TARGET_CALLEE_COPIES hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true | |
f054eb3c | 297 | #undef TARGET_ARG_PARTIAL_BYTES |
298 | #define TARGET_ARG_PARTIAL_BYTES pa_arg_partial_bytes | |
b8debbe8 | 299 | |
300 | #undef TARGET_EXPAND_BUILTIN_SAVEREGS | |
301 | #define TARGET_EXPAND_BUILTIN_SAVEREGS hppa_builtin_saveregs | |
4c33eb68 | 302 | #undef TARGET_GIMPLIFY_VA_ARG_EXPR |
303 | #define TARGET_GIMPLIFY_VA_ARG_EXPR hppa_gimplify_va_arg_expr | |
b8debbe8 | 304 | |
2b1e7cc3 | 305 | #undef TARGET_SCALAR_MODE_SUPPORTED_P |
306 | #define TARGET_SCALAR_MODE_SUPPORTED_P pa_scalar_mode_supported_p | |
307 | ||
716b2c5a | 308 | #undef TARGET_CANNOT_FORCE_CONST_MEM |
309 | #define TARGET_CANNOT_FORCE_CONST_MEM pa_tls_referenced_p | |
310 | ||
5655a0e5 | 311 | #undef TARGET_SECONDARY_RELOAD |
312 | #define TARGET_SECONDARY_RELOAD pa_secondary_reload | |
313 | ||
57e4bbfb | 314 | struct gcc_target targetm = TARGET_INITIALIZER; |
a767736d | 315 | \f |
320e1276 | 316 | /* Parse the -mfixed-range= option string. */ |
317 | ||
318 | static void | |
319 | fix_range (const char *const_str) | |
320 | { | |
321 | int i, first, last; | |
322 | char *str, *dash, *comma; | |
323 | ||
324 | /* str must be of the form REG1'-'REG2{,REG1'-'REG} where REG1 and | |
325 | REG2 are either register names or register numbers. The effect | |
326 | of this option is to mark the registers in the range from REG1 to | |
327 | REG2 as ``fixed'' so they won't be used by the compiler. This is | |
765cebfc | 328 | used, e.g., to ensure that kernel mode code doesn't use fr4-fr31. */ |
320e1276 | 329 | |
330 | i = strlen (const_str); | |
331 | str = (char *) alloca (i + 1); | |
332 | memcpy (str, const_str, i + 1); | |
333 | ||
334 | while (1) | |
335 | { | |
336 | dash = strchr (str, '-'); | |
337 | if (!dash) | |
338 | { | |
c3ceba8e | 339 | warning (0, "value of -mfixed-range must have form REG1-REG2"); |
320e1276 | 340 | return; |
341 | } | |
342 | *dash = '\0'; | |
343 | ||
344 | comma = strchr (dash + 1, ','); | |
345 | if (comma) | |
346 | *comma = '\0'; | |
347 | ||
348 | first = decode_reg_name (str); | |
349 | if (first < 0) | |
350 | { | |
c3ceba8e | 351 | warning (0, "unknown register name: %s", str); |
320e1276 | 352 | return; |
353 | } | |
354 | ||
355 | last = decode_reg_name (dash + 1); | |
356 | if (last < 0) | |
357 | { | |
c3ceba8e | 358 | warning (0, "unknown register name: %s", dash + 1); |
320e1276 | 359 | return; |
360 | } | |
361 | ||
362 | *dash = '-'; | |
363 | ||
364 | if (first > last) | |
365 | { | |
c3ceba8e | 366 | warning (0, "%s-%s is an empty range", str, dash + 1); |
320e1276 | 367 | return; |
368 | } | |
369 | ||
370 | for (i = first; i <= last; ++i) | |
371 | fixed_regs[i] = call_used_regs[i] = 1; | |
372 | ||
373 | if (!comma) | |
374 | break; | |
375 | ||
376 | *comma = ','; | |
377 | str = comma + 1; | |
378 | } | |
379 | ||
380 | /* Check if all floating point registers have been fixed. */ | |
381 | for (i = FP_REG_FIRST; i <= FP_REG_LAST; i++) | |
382 | if (!fixed_regs[i]) | |
383 | break; | |
384 | ||
385 | if (i > FP_REG_LAST) | |
386 | target_flags |= MASK_DISABLE_FPREGS; | |
387 | } | |
388 | ||
bd57250e | 389 | /* Implement TARGET_HANDLE_OPTION. */ |
c7a4e712 | 390 | |
bd57250e | 391 | static bool |
392 | pa_handle_option (size_t code, const char *arg, int value ATTRIBUTE_UNUSED) | |
393 | { | |
394 | switch (code) | |
4dc42288 | 395 | { |
bd57250e | 396 | case OPT_mnosnake: |
397 | case OPT_mpa_risc_1_0: | |
398 | case OPT_march_1_0: | |
4dc42288 | 399 | target_flags &= ~(MASK_PA_11 | MASK_PA_20); |
bd57250e | 400 | return true; |
401 | ||
402 | case OPT_msnake: | |
403 | case OPT_mpa_risc_1_1: | |
404 | case OPT_march_1_1: | |
4dc42288 | 405 | target_flags &= ~MASK_PA_20; |
406 | target_flags |= MASK_PA_11; | |
bd57250e | 407 | return true; |
4dc42288 | 408 | |
bd57250e | 409 | case OPT_mpa_risc_2_0: |
410 | case OPT_march_2_0: | |
411 | target_flags |= MASK_PA_11 | MASK_PA_20; | |
412 | return true; | |
413 | ||
414 | case OPT_mschedule_: | |
415 | if (strcmp (arg, "8000") == 0) | |
416 | pa_cpu = PROCESSOR_8000; | |
417 | else if (strcmp (arg, "7100") == 0) | |
418 | pa_cpu = PROCESSOR_7100; | |
419 | else if (strcmp (arg, "700") == 0) | |
420 | pa_cpu = PROCESSOR_700; | |
421 | else if (strcmp (arg, "7100LC") == 0) | |
422 | pa_cpu = PROCESSOR_7100LC; | |
423 | else if (strcmp (arg, "7200") == 0) | |
424 | pa_cpu = PROCESSOR_7200; | |
425 | else if (strcmp (arg, "7300") == 0) | |
426 | pa_cpu = PROCESSOR_7300; | |
8ab32933 | 427 | else |
bd57250e | 428 | return false; |
429 | return true; | |
8ab32933 | 430 | |
bd57250e | 431 | case OPT_mfixed_range_: |
432 | fix_range (arg); | |
433 | return true; | |
320e1276 | 434 | |
bd57250e | 435 | #if TARGET_HPUX |
436 | case OPT_munix_93: | |
437 | flag_pa_unix = 1993; | |
438 | return true; | |
439 | #endif | |
440 | ||
441 | #if TARGET_HPUX_10_10 | |
442 | case OPT_munix_95: | |
443 | flag_pa_unix = 1995; | |
444 | return true; | |
445 | #endif | |
446 | ||
447 | #if TARGET_HPUX_11_11 | |
448 | case OPT_munix_98: | |
449 | flag_pa_unix = 1998; | |
450 | return true; | |
451 | #endif | |
452 | ||
453 | default: | |
454 | return true; | |
455 | } | |
456 | } | |
457 | ||
458 | void | |
459 | override_options (void) | |
460 | { | |
7c5101fc | 461 | /* Unconditional branches in the delay slot are not compatible with dwarf2 |
462 | call frame information. There is no benefit in using this optimization | |
463 | on PA8000 and later processors. */ | |
464 | if (pa_cpu >= PROCESSOR_8000 | |
465 | || (! USING_SJLJ_EXCEPTIONS && flag_exceptions) | |
466 | || flag_unwind_tables) | |
467 | target_flags &= ~MASK_JUMP_IN_DELAY; | |
468 | ||
c7a4e712 | 469 | if (flag_pic && TARGET_PORTABLE_RUNTIME) |
470 | { | |
0a81f5a0 | 471 | warning (0, "PIC code generation is not supported in the portable runtime model"); |
c7a4e712 | 472 | } |
473 | ||
b29897dd | 474 | if (flag_pic && TARGET_FAST_INDIRECT_CALLS) |
c7a4e712 | 475 | { |
0a81f5a0 | 476 | warning (0, "PIC code generation is not compatible with fast indirect calls"); |
c7a4e712 | 477 | } |
751e64a1 | 478 | |
5bd7b548 | 479 | if (! TARGET_GAS && write_symbols != NO_DEBUG) |
480 | { | |
c3ceba8e | 481 | warning (0, "-g is only supported when using GAS on this processor,"); |
482 | warning (0, "-g option disabled"); | |
5bd7b548 | 483 | write_symbols = NO_DEBUG; |
484 | } | |
5cb4669a | 485 | |
fc44315f | 486 | /* We only support the "big PIC" model now. And we always generate PIC |
487 | code when in 64bit mode. */ | |
488 | if (flag_pic == 1 || TARGET_64BIT) | |
5e3c5739 | 489 | flag_pic = 2; |
490 | ||
58356836 | 491 | /* We can't guarantee that .dword is available for 32-bit targets. */ |
492 | if (UNITS_PER_WORD == 4) | |
493 | targetm.asm_out.aligned_op.di = NULL; | |
494 | ||
495 | /* The unaligned ops are only available when using GAS. */ | |
496 | if (!TARGET_GAS) | |
497 | { | |
498 | targetm.asm_out.unaligned_op.hi = NULL; | |
499 | targetm.asm_out.unaligned_op.si = NULL; | |
500 | targetm.asm_out.unaligned_op.di = NULL; | |
501 | } | |
916c9cef | 502 | |
503 | init_machine_status = pa_init_machine_status; | |
134b4858 | 504 | } |
505 | ||
066397a3 | 506 | static void |
5c1d8983 | 507 | pa_init_builtins (void) |
ffa8918b | 508 | { |
509 | #ifdef DONT_HAVE_FPUTC_UNLOCKED | |
4a08b134 | 510 | built_in_decls[(int) BUILT_IN_FPUTC_UNLOCKED] = |
511 | built_in_decls[(int) BUILT_IN_PUTC_UNLOCKED]; | |
512 | implicit_built_in_decls[(int) BUILT_IN_FPUTC_UNLOCKED] | |
513 | = implicit_built_in_decls[(int) BUILT_IN_PUTC_UNLOCKED]; | |
ffa8918b | 514 | #endif |
515 | } | |
516 | ||
916c9cef | 517 | /* Function to init struct machine_function. |
518 | This will be called, via a pointer variable, | |
519 | from push_function_context. */ | |
520 | ||
521 | static struct machine_function * | |
522 | pa_init_machine_status (void) | |
523 | { | |
524 | return ggc_alloc_cleared (sizeof (machine_function)); | |
525 | } | |
526 | ||
dbd3d89d | 527 | /* If FROM is a probable pointer register, mark TO as a probable |
528 | pointer register with the same pointer alignment as FROM. */ | |
529 | ||
530 | static void | |
531 | copy_reg_pointer (rtx to, rtx from) | |
532 | { | |
533 | if (REG_POINTER (from)) | |
534 | mark_reg_pointer (to, REGNO_POINTER_ALIGN (REGNO (from))); | |
535 | } | |
536 | ||
6d36483b | 537 | /* Return 1 if X contains a symbolic expression. We know these |
538 | expressions will have one of a few well defined forms, so | |
347b5848 | 539 | we need only check those forms. */ |
540 | int | |
5c1d8983 | 541 | symbolic_expression_p (rtx x) |
347b5848 | 542 | { |
543 | ||
6dc3b0d9 | 544 | /* Strip off any HIGH. */ |
347b5848 | 545 | if (GET_CODE (x) == HIGH) |
546 | x = XEXP (x, 0); | |
547 | ||
548 | return (symbolic_operand (x, VOIDmode)); | |
549 | } | |
550 | ||
7c4d3047 | 551 | /* Accept any constant that can be moved in one instruction into a |
d9d7c968 | 552 | general register. */ |
6d36483b | 553 | int |
5c1d8983 | 554 | cint_ok_for_move (HOST_WIDE_INT intval) |
d9d7c968 | 555 | { |
556 | /* OK if ldo, ldil, or zdepi, can be used. */ | |
d8d5c4ff | 557 | return (CONST_OK_FOR_LETTER_P (intval, 'J') |
558 | || CONST_OK_FOR_LETTER_P (intval, 'N') | |
559 | || CONST_OK_FOR_LETTER_P (intval, 'K')); | |
d9d7c968 | 560 | } |
87ad11b0 | 561 | \f |
2a91e628 | 562 | /* Return truth value of whether OP can be used as an operand in a |
563 | adddi3 insn. */ | |
564 | int | |
5c1d8983 | 565 | adddi3_operand (rtx op, enum machine_mode mode) |
2a91e628 | 566 | { |
567 | return (register_operand (op, mode) | |
568 | || (GET_CODE (op) == CONST_INT | |
569 | && (TARGET_64BIT ? INT_14_BITS (op) : INT_11_BITS (op)))); | |
570 | } | |
571 | ||
ea52c577 | 572 | /* True iff zdepi can be used to generate this CONST_INT. |
573 | zdepi first sign extends a 5 bit signed number to a given field | |
574 | length, then places this field anywhere in a zero. */ | |
e057641f | 575 | int |
5c1d8983 | 576 | zdepi_cint_p (unsigned HOST_WIDE_INT x) |
fad0b60f | 577 | { |
3745c59b | 578 | unsigned HOST_WIDE_INT lsb_mask, t; |
fad0b60f | 579 | |
580 | /* This might not be obvious, but it's at least fast. | |
01cc3b75 | 581 | This function is critical; we don't have the time loops would take. */ |
42faba01 | 582 | lsb_mask = x & -x; |
583 | t = ((x >> 4) + lsb_mask) & ~(lsb_mask - 1); | |
584 | /* Return true iff t is a power of two. */ | |
fad0b60f | 585 | return ((t & (t - 1)) == 0); |
586 | } | |
587 | ||
6d36483b | 588 | /* True iff depi or extru can be used to compute (reg & mask). |
589 | Accept bit pattern like these: | |
590 | 0....01....1 | |
591 | 1....10....0 | |
592 | 1..10..01..1 */ | |
e057641f | 593 | int |
5c1d8983 | 594 | and_mask_p (unsigned HOST_WIDE_INT mask) |
e057641f | 595 | { |
596 | mask = ~mask; | |
597 | mask += mask & -mask; | |
598 | return (mask & (mask - 1)) == 0; | |
599 | } | |
600 | ||
e057641f | 601 | /* True iff depi can be used to compute (reg | MASK). */ |
602 | int | |
5c1d8983 | 603 | ior_mask_p (unsigned HOST_WIDE_INT mask) |
e057641f | 604 | { |
605 | mask += mask & -mask; | |
606 | return (mask & (mask - 1)) == 0; | |
607 | } | |
87ad11b0 | 608 | \f |
609 | /* Legitimize PIC addresses. If the address is already | |
610 | position-independent, we return ORIG. Newly generated | |
611 | position-independent addresses go to REG. If we need more | |
612 | than one register, we lose. */ | |
613 | ||
614 | rtx | |
5c1d8983 | 615 | legitimize_pic_address (rtx orig, enum machine_mode mode, rtx reg) |
87ad11b0 | 616 | { |
617 | rtx pic_ref = orig; | |
618 | ||
f7229f19 | 619 | gcc_assert (!PA_SYMBOL_REF_TLS_P (orig)); |
716b2c5a | 620 | |
b090827b | 621 | /* Labels need special handling. */ |
611a88e1 | 622 | if (pic_label_operand (orig, mode)) |
b4a7bf10 | 623 | { |
2536cc16 | 624 | /* We do not want to go through the movXX expanders here since that |
625 | would create recursion. | |
626 | ||
627 | Nor do we really want to call a generator for a named pattern | |
628 | since that requires multiple patterns if we want to support | |
629 | multiple word sizes. | |
630 | ||
631 | So instead we just emit the raw set, which avoids the movXX | |
632 | expanders completely. */ | |
dbd3d89d | 633 | mark_reg_pointer (reg, BITS_PER_UNIT); |
2536cc16 | 634 | emit_insn (gen_rtx_SET (VOIDmode, reg, orig)); |
b4a7bf10 | 635 | current_function_uses_pic_offset_table = 1; |
636 | return reg; | |
637 | } | |
87ad11b0 | 638 | if (GET_CODE (orig) == SYMBOL_REF) |
639 | { | |
f9c1ba9d | 640 | rtx insn, tmp_reg; |
641 | ||
ecf2283d | 642 | gcc_assert (reg); |
87ad11b0 | 643 | |
f9c1ba9d | 644 | /* Before reload, allocate a temporary register for the intermediate |
645 | result. This allows the sequence to be deleted when the final | |
646 | result is unused and the insns are trivially dead. */ | |
647 | tmp_reg = ((reload_in_progress || reload_completed) | |
648 | ? reg : gen_reg_rtx (Pmode)); | |
649 | ||
650 | emit_move_insn (tmp_reg, | |
fc44315f | 651 | gen_rtx_PLUS (word_mode, pic_offset_table_rtx, |
652 | gen_rtx_HIGH (word_mode, orig))); | |
653 | pic_ref | |
e265a6da | 654 | = gen_const_mem (Pmode, |
655 | gen_rtx_LO_SUM (Pmode, tmp_reg, | |
656 | gen_rtx_UNSPEC (Pmode, | |
657 | gen_rtvec (1, orig), | |
658 | UNSPEC_DLTIND14R))); | |
7014838c | 659 | |
87ad11b0 | 660 | current_function_uses_pic_offset_table = 1; |
dbd3d89d | 661 | mark_reg_pointer (reg, BITS_PER_UNIT); |
f9c1ba9d | 662 | insn = emit_move_insn (reg, pic_ref); |
663 | ||
664 | /* Put a REG_EQUAL note on this insn, so that it can be optimized. */ | |
24153880 | 665 | set_unique_reg_note (insn, REG_EQUAL, orig); |
f9c1ba9d | 666 | |
87ad11b0 | 667 | return reg; |
668 | } | |
669 | else if (GET_CODE (orig) == CONST) | |
670 | { | |
57ed30e5 | 671 | rtx base; |
87ad11b0 | 672 | |
673 | if (GET_CODE (XEXP (orig, 0)) == PLUS | |
674 | && XEXP (XEXP (orig, 0), 0) == pic_offset_table_rtx) | |
675 | return orig; | |
676 | ||
ecf2283d | 677 | gcc_assert (reg); |
678 | gcc_assert (GET_CODE (XEXP (orig, 0)) == PLUS); | |
679 | ||
680 | base = legitimize_pic_address (XEXP (XEXP (orig, 0), 0), Pmode, reg); | |
681 | orig = legitimize_pic_address (XEXP (XEXP (orig, 0), 1), Pmode, | |
682 | base == reg ? 0 : reg); | |
dbd3d89d | 683 | |
87ad11b0 | 684 | if (GET_CODE (orig) == CONST_INT) |
685 | { | |
42faba01 | 686 | if (INT_14_BITS (orig)) |
b244d4c7 | 687 | return plus_constant (base, INTVAL (orig)); |
87ad11b0 | 688 | orig = force_reg (Pmode, orig); |
689 | } | |
ad851752 | 690 | pic_ref = gen_rtx_PLUS (Pmode, base, orig); |
87ad11b0 | 691 | /* Likewise, should we set special REG_NOTEs here? */ |
692 | } | |
dbd3d89d | 693 | |
87ad11b0 | 694 | return pic_ref; |
695 | } | |
696 | ||
716b2c5a | 697 | static GTY(()) rtx gen_tls_tga; |
698 | ||
699 | static rtx | |
700 | gen_tls_get_addr (void) | |
701 | { | |
702 | if (!gen_tls_tga) | |
703 | gen_tls_tga = init_one_libfunc ("__tls_get_addr"); | |
704 | return gen_tls_tga; | |
705 | } | |
706 | ||
707 | static rtx | |
708 | hppa_tls_call (rtx arg) | |
709 | { | |
710 | rtx ret; | |
711 | ||
712 | ret = gen_reg_rtx (Pmode); | |
713 | emit_library_call_value (gen_tls_get_addr (), ret, | |
714 | LCT_CONST, Pmode, 1, arg, Pmode); | |
715 | ||
716 | return ret; | |
717 | } | |
718 | ||
719 | static rtx | |
720 | legitimize_tls_address (rtx addr) | |
721 | { | |
722 | rtx ret, insn, tmp, t1, t2, tp; | |
723 | enum tls_model model = SYMBOL_REF_TLS_MODEL (addr); | |
724 | ||
725 | switch (model) | |
726 | { | |
727 | case TLS_MODEL_GLOBAL_DYNAMIC: | |
728 | tmp = gen_reg_rtx (Pmode); | |
729 | emit_insn (gen_tgd_load (tmp, addr)); | |
730 | ret = hppa_tls_call (tmp); | |
731 | break; | |
732 | ||
733 | case TLS_MODEL_LOCAL_DYNAMIC: | |
734 | ret = gen_reg_rtx (Pmode); | |
735 | tmp = gen_reg_rtx (Pmode); | |
736 | start_sequence (); | |
737 | emit_insn (gen_tld_load (tmp, addr)); | |
738 | t1 = hppa_tls_call (tmp); | |
739 | insn = get_insns (); | |
740 | end_sequence (); | |
741 | t2 = gen_reg_rtx (Pmode); | |
742 | emit_libcall_block (insn, t2, t1, | |
743 | gen_rtx_UNSPEC (Pmode, gen_rtvec (1, const0_rtx), | |
744 | UNSPEC_TLSLDBASE)); | |
745 | emit_insn (gen_tld_offset_load (ret, addr, t2)); | |
746 | break; | |
747 | ||
748 | case TLS_MODEL_INITIAL_EXEC: | |
749 | tp = gen_reg_rtx (Pmode); | |
750 | tmp = gen_reg_rtx (Pmode); | |
751 | ret = gen_reg_rtx (Pmode); | |
752 | emit_insn (gen_tp_load (tp)); | |
753 | emit_insn (gen_tie_load (tmp, addr)); | |
754 | emit_move_insn (ret, gen_rtx_PLUS (Pmode, tp, tmp)); | |
755 | break; | |
756 | ||
757 | case TLS_MODEL_LOCAL_EXEC: | |
758 | tp = gen_reg_rtx (Pmode); | |
759 | ret = gen_reg_rtx (Pmode); | |
760 | emit_insn (gen_tp_load (tp)); | |
761 | emit_insn (gen_tle_load (ret, addr, tp)); | |
762 | break; | |
763 | ||
764 | default: | |
f7229f19 | 765 | gcc_unreachable (); |
716b2c5a | 766 | } |
767 | ||
768 | return ret; | |
769 | } | |
770 | ||
347b5848 | 771 | /* Try machine-dependent ways of modifying an illegitimate address |
772 | to be legitimate. If we find one, return the new, valid address. | |
773 | This macro is used in only one place: `memory_address' in explow.c. | |
774 | ||
775 | OLDX is the address as it was before break_out_memory_refs was called. | |
776 | In some cases it is useful to look at this to decide what needs to be done. | |
777 | ||
778 | MODE and WIN are passed so that this macro can use | |
779 | GO_IF_LEGITIMATE_ADDRESS. | |
780 | ||
781 | It is always safe for this macro to do nothing. It exists to recognize | |
6d36483b | 782 | opportunities to optimize the output. |
347b5848 | 783 | |
784 | For the PA, transform: | |
785 | ||
786 | memory(X + <large int>) | |
787 | ||
788 | into: | |
789 | ||
790 | if (<large int> & mask) >= 16 | |
791 | Y = (<large int> & ~mask) + mask + 1 Round up. | |
792 | else | |
793 | Y = (<large int> & ~mask) Round down. | |
794 | Z = X + Y | |
795 | memory (Z + (<large int> - Y)); | |
796 | ||
6d36483b | 797 | This is for CSE to find several similar references, and only use one Z. |
347b5848 | 798 | |
33f88b1c | 799 | X can either be a SYMBOL_REF or REG, but because combine cannot |
347b5848 | 800 | perform a 4->2 combination we do nothing for SYMBOL_REF + D where |
801 | D will not fit in 14 bits. | |
802 | ||
803 | MODE_FLOAT references allow displacements which fit in 5 bits, so use | |
6d36483b | 804 | 0x1f as the mask. |
347b5848 | 805 | |
806 | MODE_INT references allow displacements which fit in 14 bits, so use | |
6d36483b | 807 | 0x3fff as the mask. |
347b5848 | 808 | |
809 | This relies on the fact that most mode MODE_FLOAT references will use FP | |
810 | registers and most mode MODE_INT references will use integer registers. | |
811 | (In the rare case of an FP register used in an integer MODE, we depend | |
812 | on secondary reloads to clean things up.) | |
813 | ||
814 | ||
815 | It is also beneficial to handle (plus (mult (X) (Y)) (Z)) in a special | |
816 | manner if Y is 2, 4, or 8. (allows more shadd insns and shifted indexed | |
01cc3b75 | 817 | addressing modes to be used). |
347b5848 | 818 | |
819 | Put X and Z into registers. Then put the entire expression into | |
820 | a register. */ | |
821 | ||
822 | rtx | |
5c1d8983 | 823 | hppa_legitimize_address (rtx x, rtx oldx ATTRIBUTE_UNUSED, |
824 | enum machine_mode mode) | |
347b5848 | 825 | { |
347b5848 | 826 | rtx orig = x; |
827 | ||
dbd3d89d | 828 | /* We need to canonicalize the order of operands in unscaled indexed |
829 | addresses since the code that checks if an address is valid doesn't | |
830 | always try both orders. */ | |
831 | if (!TARGET_NO_SPACE_REGS | |
832 | && GET_CODE (x) == PLUS | |
833 | && GET_MODE (x) == Pmode | |
834 | && REG_P (XEXP (x, 0)) | |
835 | && REG_P (XEXP (x, 1)) | |
836 | && REG_POINTER (XEXP (x, 0)) | |
837 | && !REG_POINTER (XEXP (x, 1))) | |
838 | return gen_rtx_PLUS (Pmode, XEXP (x, 1), XEXP (x, 0)); | |
839 | ||
716b2c5a | 840 | if (PA_SYMBOL_REF_TLS_P (x)) |
841 | return legitimize_tls_address (x); | |
842 | else if (flag_pic) | |
b4a7bf10 | 843 | return legitimize_pic_address (x, mode, gen_reg_rtx (Pmode)); |
844 | ||
6dc3b0d9 | 845 | /* Strip off CONST. */ |
347b5848 | 846 | if (GET_CODE (x) == CONST) |
847 | x = XEXP (x, 0); | |
848 | ||
42819d4e | 849 | /* Special case. Get the SYMBOL_REF into a register and use indexing. |
850 | That should always be safe. */ | |
851 | if (GET_CODE (x) == PLUS | |
852 | && GET_CODE (XEXP (x, 0)) == REG | |
853 | && GET_CODE (XEXP (x, 1)) == SYMBOL_REF) | |
854 | { | |
440c23df | 855 | rtx reg = force_reg (Pmode, XEXP (x, 1)); |
856 | return force_reg (Pmode, gen_rtx_PLUS (Pmode, reg, XEXP (x, 0))); | |
42819d4e | 857 | } |
858 | ||
166bf021 | 859 | /* Note we must reject symbols which represent function addresses |
860 | since the assembler/linker can't handle arithmetic on plabels. */ | |
347b5848 | 861 | if (GET_CODE (x) == PLUS |
862 | && GET_CODE (XEXP (x, 1)) == CONST_INT | |
166bf021 | 863 | && ((GET_CODE (XEXP (x, 0)) == SYMBOL_REF |
864 | && !FUNCTION_NAME_P (XSTR (XEXP (x, 0), 0))) | |
347b5848 | 865 | || GET_CODE (XEXP (x, 0)) == REG)) |
866 | { | |
867 | rtx int_part, ptr_reg; | |
868 | int newoffset; | |
869 | int offset = INTVAL (XEXP (x, 1)); | |
1b6f11e2 | 870 | int mask; |
871 | ||
872 | mask = (GET_MODE_CLASS (mode) == MODE_FLOAT | |
873 | ? (TARGET_PA_20 ? 0x3fff : 0x1f) : 0x3fff); | |
347b5848 | 874 | |
6d36483b | 875 | /* Choose which way to round the offset. Round up if we |
347b5848 | 876 | are >= halfway to the next boundary. */ |
877 | if ((offset & mask) >= ((mask + 1) / 2)) | |
878 | newoffset = (offset & ~ mask) + mask + 1; | |
879 | else | |
880 | newoffset = (offset & ~ mask); | |
881 | ||
882 | /* If the newoffset will not fit in 14 bits (ldo), then | |
883 | handling this would take 4 or 5 instructions (2 to load | |
884 | the SYMBOL_REF + 1 or 2 to load the newoffset + 1 to | |
885 | add the new offset and the SYMBOL_REF.) Combine can | |
886 | not handle 4->2 or 5->2 combinations, so do not create | |
887 | them. */ | |
888 | if (! VAL_14_BITS_P (newoffset) | |
889 | && GET_CODE (XEXP (x, 0)) == SYMBOL_REF) | |
890 | { | |
7014838c | 891 | rtx const_part = plus_constant (XEXP (x, 0), newoffset); |
347b5848 | 892 | rtx tmp_reg |
339613b4 | 893 | = force_reg (Pmode, |
ad851752 | 894 | gen_rtx_HIGH (Pmode, const_part)); |
347b5848 | 895 | ptr_reg |
339613b4 | 896 | = force_reg (Pmode, |
7014838c | 897 | gen_rtx_LO_SUM (Pmode, |
898 | tmp_reg, const_part)); | |
347b5848 | 899 | } |
900 | else | |
901 | { | |
902 | if (! VAL_14_BITS_P (newoffset)) | |
339613b4 | 903 | int_part = force_reg (Pmode, GEN_INT (newoffset)); |
347b5848 | 904 | else |
905 | int_part = GEN_INT (newoffset); | |
906 | ||
339613b4 | 907 | ptr_reg = force_reg (Pmode, |
ad851752 | 908 | gen_rtx_PLUS (Pmode, |
909 | force_reg (Pmode, XEXP (x, 0)), | |
910 | int_part)); | |
347b5848 | 911 | } |
912 | return plus_constant (ptr_reg, offset - newoffset); | |
913 | } | |
45f1285a | 914 | |
5115683e | 915 | /* Handle (plus (mult (a) (shadd_constant)) (b)). */ |
45f1285a | 916 | |
347b5848 | 917 | if (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 0)) == MULT |
918 | && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT | |
45f1285a | 919 | && shadd_constant_p (INTVAL (XEXP (XEXP (x, 0), 1))) |
6720e96c | 920 | && (OBJECT_P (XEXP (x, 1)) |
45f1285a | 921 | || GET_CODE (XEXP (x, 1)) == SUBREG) |
922 | && GET_CODE (XEXP (x, 1)) != CONST) | |
347b5848 | 923 | { |
924 | int val = INTVAL (XEXP (XEXP (x, 0), 1)); | |
925 | rtx reg1, reg2; | |
5115683e | 926 | |
927 | reg1 = XEXP (x, 1); | |
928 | if (GET_CODE (reg1) != REG) | |
929 | reg1 = force_reg (Pmode, force_operand (reg1, 0)); | |
930 | ||
931 | reg2 = XEXP (XEXP (x, 0), 0); | |
932 | if (GET_CODE (reg2) != REG) | |
933 | reg2 = force_reg (Pmode, force_operand (reg2, 0)); | |
934 | ||
ad851752 | 935 | return force_reg (Pmode, gen_rtx_PLUS (Pmode, |
7014838c | 936 | gen_rtx_MULT (Pmode, |
937 | reg2, | |
938 | GEN_INT (val)), | |
ad851752 | 939 | reg1)); |
347b5848 | 940 | } |
45f1285a | 941 | |
00a87639 | 942 | /* Similarly for (plus (plus (mult (a) (shadd_constant)) (b)) (c)). |
943 | ||
944 | Only do so for floating point modes since this is more speculative | |
945 | and we lose if it's an integer store. */ | |
5115683e | 946 | if (GET_CODE (x) == PLUS |
00a87639 | 947 | && GET_CODE (XEXP (x, 0)) == PLUS |
948 | && GET_CODE (XEXP (XEXP (x, 0), 0)) == MULT | |
949 | && GET_CODE (XEXP (XEXP (XEXP (x, 0), 0), 1)) == CONST_INT | |
5115683e | 950 | && shadd_constant_p (INTVAL (XEXP (XEXP (XEXP (x, 0), 0), 1))) |
951 | && (mode == SFmode || mode == DFmode)) | |
00a87639 | 952 | { |
5115683e | 953 | |
954 | /* First, try and figure out what to use as a base register. */ | |
955 | rtx reg1, reg2, base, idx, orig_base; | |
956 | ||
957 | reg1 = XEXP (XEXP (x, 0), 1); | |
958 | reg2 = XEXP (x, 1); | |
959 | base = NULL_RTX; | |
960 | idx = NULL_RTX; | |
961 | ||
962 | /* Make sure they're both regs. If one was a SYMBOL_REF [+ const], | |
e61a0a7f | 963 | then emit_move_sequence will turn on REG_POINTER so we'll know |
964 | it's a base register below. */ | |
5115683e | 965 | if (GET_CODE (reg1) != REG) |
966 | reg1 = force_reg (Pmode, force_operand (reg1, 0)); | |
967 | ||
968 | if (GET_CODE (reg2) != REG) | |
969 | reg2 = force_reg (Pmode, force_operand (reg2, 0)); | |
970 | ||
971 | /* Figure out what the base and index are. */ | |
9840d99d | 972 | |
5115683e | 973 | if (GET_CODE (reg1) == REG |
e61a0a7f | 974 | && REG_POINTER (reg1)) |
5115683e | 975 | { |
976 | base = reg1; | |
977 | orig_base = XEXP (XEXP (x, 0), 1); | |
ad851752 | 978 | idx = gen_rtx_PLUS (Pmode, |
979 | gen_rtx_MULT (Pmode, | |
980 | XEXP (XEXP (XEXP (x, 0), 0), 0), | |
981 | XEXP (XEXP (XEXP (x, 0), 0), 1)), | |
982 | XEXP (x, 1)); | |
5115683e | 983 | } |
984 | else if (GET_CODE (reg2) == REG | |
e61a0a7f | 985 | && REG_POINTER (reg2)) |
5115683e | 986 | { |
987 | base = reg2; | |
988 | orig_base = XEXP (x, 1); | |
989 | idx = XEXP (x, 0); | |
990 | } | |
991 | ||
992 | if (base == 0) | |
21f3ee9c | 993 | return orig; |
5115683e | 994 | |
995 | /* If the index adds a large constant, try to scale the | |
996 | constant so that it can be loaded with only one insn. */ | |
997 | if (GET_CODE (XEXP (idx, 1)) == CONST_INT | |
998 | && VAL_14_BITS_P (INTVAL (XEXP (idx, 1)) | |
999 | / INTVAL (XEXP (XEXP (idx, 0), 1))) | |
1000 | && INTVAL (XEXP (idx, 1)) % INTVAL (XEXP (XEXP (idx, 0), 1)) == 0) | |
1001 | { | |
1002 | /* Divide the CONST_INT by the scale factor, then add it to A. */ | |
1003 | int val = INTVAL (XEXP (idx, 1)); | |
1004 | ||
1005 | val /= INTVAL (XEXP (XEXP (idx, 0), 1)); | |
1006 | reg1 = XEXP (XEXP (idx, 0), 0); | |
1007 | if (GET_CODE (reg1) != REG) | |
1008 | reg1 = force_reg (Pmode, force_operand (reg1, 0)); | |
1009 | ||
ad851752 | 1010 | reg1 = force_reg (Pmode, gen_rtx_PLUS (Pmode, reg1, GEN_INT (val))); |
5115683e | 1011 | |
1012 | /* We can now generate a simple scaled indexed address. */ | |
7014838c | 1013 | return |
1014 | force_reg | |
1015 | (Pmode, gen_rtx_PLUS (Pmode, | |
1016 | gen_rtx_MULT (Pmode, reg1, | |
1017 | XEXP (XEXP (idx, 0), 1)), | |
1018 | base)); | |
5115683e | 1019 | } |
1020 | ||
1021 | /* If B + C is still a valid base register, then add them. */ | |
1022 | if (GET_CODE (XEXP (idx, 1)) == CONST_INT | |
1023 | && INTVAL (XEXP (idx, 1)) <= 4096 | |
1024 | && INTVAL (XEXP (idx, 1)) >= -4096) | |
1025 | { | |
1026 | int val = INTVAL (XEXP (XEXP (idx, 0), 1)); | |
1027 | rtx reg1, reg2; | |
1028 | ||
ad851752 | 1029 | reg1 = force_reg (Pmode, gen_rtx_PLUS (Pmode, base, XEXP (idx, 1))); |
5115683e | 1030 | |
1031 | reg2 = XEXP (XEXP (idx, 0), 0); | |
1032 | if (GET_CODE (reg2) != CONST_INT) | |
1033 | reg2 = force_reg (Pmode, force_operand (reg2, 0)); | |
1034 | ||
ad851752 | 1035 | return force_reg (Pmode, gen_rtx_PLUS (Pmode, |
7014838c | 1036 | gen_rtx_MULT (Pmode, |
1037 | reg2, | |
ad851752 | 1038 | GEN_INT (val)), |
1039 | reg1)); | |
5115683e | 1040 | } |
1041 | ||
1042 | /* Get the index into a register, then add the base + index and | |
1043 | return a register holding the result. */ | |
1044 | ||
1045 | /* First get A into a register. */ | |
1046 | reg1 = XEXP (XEXP (idx, 0), 0); | |
1047 | if (GET_CODE (reg1) != REG) | |
1048 | reg1 = force_reg (Pmode, force_operand (reg1, 0)); | |
1049 | ||
1050 | /* And get B into a register. */ | |
1051 | reg2 = XEXP (idx, 1); | |
1052 | if (GET_CODE (reg2) != REG) | |
1053 | reg2 = force_reg (Pmode, force_operand (reg2, 0)); | |
1054 | ||
ad851752 | 1055 | reg1 = force_reg (Pmode, |
1056 | gen_rtx_PLUS (Pmode, | |
1057 | gen_rtx_MULT (Pmode, reg1, | |
1058 | XEXP (XEXP (idx, 0), 1)), | |
1059 | reg2)); | |
5115683e | 1060 | |
1061 | /* Add the result to our base register and return. */ | |
ad851752 | 1062 | return force_reg (Pmode, gen_rtx_PLUS (Pmode, base, reg1)); |
9840d99d | 1063 | |
00a87639 | 1064 | } |
1065 | ||
6d36483b | 1066 | /* Uh-oh. We might have an address for x[n-100000]. This needs |
fb5390c1 | 1067 | special handling to avoid creating an indexed memory address |
1068 | with x-100000 as the base. | |
9840d99d | 1069 | |
fb5390c1 | 1070 | If the constant part is small enough, then it's still safe because |
1071 | there is a guard page at the beginning and end of the data segment. | |
1072 | ||
1073 | Scaled references are common enough that we want to try and rearrange the | |
1074 | terms so that we can use indexing for these addresses too. Only | |
00a87639 | 1075 | do the optimization for floatint point modes. */ |
45f1285a | 1076 | |
fb5390c1 | 1077 | if (GET_CODE (x) == PLUS |
1078 | && symbolic_expression_p (XEXP (x, 1))) | |
45f1285a | 1079 | { |
1080 | /* Ugly. We modify things here so that the address offset specified | |
1081 | by the index expression is computed first, then added to x to form | |
fb5390c1 | 1082 | the entire address. */ |
45f1285a | 1083 | |
00a87639 | 1084 | rtx regx1, regx2, regy1, regy2, y; |
45f1285a | 1085 | |
1086 | /* Strip off any CONST. */ | |
1087 | y = XEXP (x, 1); | |
1088 | if (GET_CODE (y) == CONST) | |
1089 | y = XEXP (y, 0); | |
1090 | ||
7ee96d6e | 1091 | if (GET_CODE (y) == PLUS || GET_CODE (y) == MINUS) |
1092 | { | |
00a87639 | 1093 | /* See if this looks like |
1094 | (plus (mult (reg) (shadd_const)) | |
1095 | (const (plus (symbol_ref) (const_int)))) | |
1096 | ||
5115683e | 1097 | Where const_int is small. In that case the const |
9840d99d | 1098 | expression is a valid pointer for indexing. |
5115683e | 1099 | |
1100 | If const_int is big, but can be divided evenly by shadd_const | |
1101 | and added to (reg). This allows more scaled indexed addresses. */ | |
1102 | if (GET_CODE (XEXP (y, 0)) == SYMBOL_REF | |
1103 | && GET_CODE (XEXP (x, 0)) == MULT | |
00a87639 | 1104 | && GET_CODE (XEXP (y, 1)) == CONST_INT |
5115683e | 1105 | && INTVAL (XEXP (y, 1)) >= -4096 |
1106 | && INTVAL (XEXP (y, 1)) <= 4095 | |
1107 | && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT | |
1108 | && shadd_constant_p (INTVAL (XEXP (XEXP (x, 0), 1)))) | |
1109 | { | |
1110 | int val = INTVAL (XEXP (XEXP (x, 0), 1)); | |
1111 | rtx reg1, reg2; | |
1112 | ||
1113 | reg1 = XEXP (x, 1); | |
1114 | if (GET_CODE (reg1) != REG) | |
1115 | reg1 = force_reg (Pmode, force_operand (reg1, 0)); | |
1116 | ||
1117 | reg2 = XEXP (XEXP (x, 0), 0); | |
1118 | if (GET_CODE (reg2) != REG) | |
1119 | reg2 = force_reg (Pmode, force_operand (reg2, 0)); | |
1120 | ||
ad851752 | 1121 | return force_reg (Pmode, |
1122 | gen_rtx_PLUS (Pmode, | |
7014838c | 1123 | gen_rtx_MULT (Pmode, |
1124 | reg2, | |
ad851752 | 1125 | GEN_INT (val)), |
7014838c | 1126 | reg1)); |
5115683e | 1127 | } |
1128 | else if ((mode == DFmode || mode == SFmode) | |
1129 | && GET_CODE (XEXP (y, 0)) == SYMBOL_REF | |
1130 | && GET_CODE (XEXP (x, 0)) == MULT | |
1131 | && GET_CODE (XEXP (y, 1)) == CONST_INT | |
1132 | && INTVAL (XEXP (y, 1)) % INTVAL (XEXP (XEXP (x, 0), 1)) == 0 | |
1133 | && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT | |
1134 | && shadd_constant_p (INTVAL (XEXP (XEXP (x, 0), 1)))) | |
00a87639 | 1135 | { |
1136 | regx1 | |
1137 | = force_reg (Pmode, GEN_INT (INTVAL (XEXP (y, 1)) | |
1138 | / INTVAL (XEXP (XEXP (x, 0), 1)))); | |
1139 | regx2 = XEXP (XEXP (x, 0), 0); | |
1140 | if (GET_CODE (regx2) != REG) | |
1141 | regx2 = force_reg (Pmode, force_operand (regx2, 0)); | |
ad851752 | 1142 | regx2 = force_reg (Pmode, gen_rtx_fmt_ee (GET_CODE (y), Pmode, |
1143 | regx2, regx1)); | |
7014838c | 1144 | return |
1145 | force_reg (Pmode, | |
1146 | gen_rtx_PLUS (Pmode, | |
1147 | gen_rtx_MULT (Pmode, regx2, | |
1148 | XEXP (XEXP (x, 0), 1)), | |
1149 | force_reg (Pmode, XEXP (y, 0)))); | |
00a87639 | 1150 | } |
fb5390c1 | 1151 | else if (GET_CODE (XEXP (y, 1)) == CONST_INT |
1152 | && INTVAL (XEXP (y, 1)) >= -4096 | |
1153 | && INTVAL (XEXP (y, 1)) <= 4095) | |
1154 | { | |
1155 | /* This is safe because of the guard page at the | |
1156 | beginning and end of the data space. Just | |
1157 | return the original address. */ | |
1158 | return orig; | |
1159 | } | |
00a87639 | 1160 | else |
1161 | { | |
1162 | /* Doesn't look like one we can optimize. */ | |
1163 | regx1 = force_reg (Pmode, force_operand (XEXP (x, 0), 0)); | |
1164 | regy1 = force_reg (Pmode, force_operand (XEXP (y, 0), 0)); | |
1165 | regy2 = force_reg (Pmode, force_operand (XEXP (y, 1), 0)); | |
1166 | regx1 = force_reg (Pmode, | |
ad851752 | 1167 | gen_rtx_fmt_ee (GET_CODE (y), Pmode, |
1168 | regx1, regy2)); | |
1169 | return force_reg (Pmode, gen_rtx_PLUS (Pmode, regx1, regy1)); | |
00a87639 | 1170 | } |
7ee96d6e | 1171 | } |
45f1285a | 1172 | } |
1173 | ||
347b5848 | 1174 | return orig; |
1175 | } | |
1176 | ||
87ad11b0 | 1177 | /* For the HPPA, REG and REG+CONST is cost 0 |
1178 | and addresses involving symbolic constants are cost 2. | |
1179 | ||
1180 | PIC addresses are very expensive. | |
1181 | ||
1182 | It is no coincidence that this has the same structure | |
1183 | as GO_IF_LEGITIMATE_ADDRESS. */ | |
ec0457a8 | 1184 | |
1185 | static int | |
5c1d8983 | 1186 | hppa_address_cost (rtx X) |
87ad11b0 | 1187 | { |
ec0457a8 | 1188 | switch (GET_CODE (X)) |
1189 | { | |
1190 | case REG: | |
1191 | case PLUS: | |
1192 | case LO_SUM: | |
87ad11b0 | 1193 | return 1; |
ec0457a8 | 1194 | case HIGH: |
1195 | return 2; | |
1196 | default: | |
1197 | return 4; | |
1198 | } | |
87ad11b0 | 1199 | } |
1200 | ||
fab7adbf | 1201 | /* Compute a (partial) cost for rtx X. Return true if the complete |
1202 | cost has been computed, and false if subexpressions should be | |
1203 | scanned. In either case, *TOTAL contains the cost result. */ | |
1204 | ||
1205 | static bool | |
5c1d8983 | 1206 | hppa_rtx_costs (rtx x, int code, int outer_code, int *total) |
fab7adbf | 1207 | { |
1208 | switch (code) | |
1209 | { | |
1210 | case CONST_INT: | |
1211 | if (INTVAL (x) == 0) | |
1212 | *total = 0; | |
1213 | else if (INT_14_BITS (x)) | |
1214 | *total = 1; | |
1215 | else | |
1216 | *total = 2; | |
1217 | return true; | |
1218 | ||
1219 | case HIGH: | |
1220 | *total = 2; | |
1221 | return true; | |
1222 | ||
1223 | case CONST: | |
1224 | case LABEL_REF: | |
1225 | case SYMBOL_REF: | |
1226 | *total = 4; | |
1227 | return true; | |
1228 | ||
1229 | case CONST_DOUBLE: | |
1230 | if ((x == CONST0_RTX (DFmode) || x == CONST0_RTX (SFmode)) | |
1231 | && outer_code != SET) | |
1232 | *total = 0; | |
1233 | else | |
1234 | *total = 8; | |
1235 | return true; | |
1236 | ||
1237 | case MULT: | |
1238 | if (GET_MODE_CLASS (GET_MODE (x)) == MODE_FLOAT) | |
1239 | *total = COSTS_N_INSNS (3); | |
1240 | else if (TARGET_PA_11 && !TARGET_DISABLE_FPREGS && !TARGET_SOFT_FLOAT) | |
1241 | *total = COSTS_N_INSNS (8); | |
1242 | else | |
1243 | *total = COSTS_N_INSNS (20); | |
1244 | return true; | |
1245 | ||
1246 | case DIV: | |
1247 | if (GET_MODE_CLASS (GET_MODE (x)) == MODE_FLOAT) | |
1248 | { | |
1249 | *total = COSTS_N_INSNS (14); | |
1250 | return true; | |
1251 | } | |
8e262b5e | 1252 | /* FALLTHRU */ |
fab7adbf | 1253 | |
1254 | case UDIV: | |
1255 | case MOD: | |
1256 | case UMOD: | |
1257 | *total = COSTS_N_INSNS (60); | |
1258 | return true; | |
1259 | ||
1260 | case PLUS: /* this includes shNadd insns */ | |
1261 | case MINUS: | |
1262 | if (GET_MODE_CLASS (GET_MODE (x)) == MODE_FLOAT) | |
1263 | *total = COSTS_N_INSNS (3); | |
1264 | else | |
1265 | *total = COSTS_N_INSNS (1); | |
1266 | return true; | |
1267 | ||
1268 | case ASHIFT: | |
1269 | case ASHIFTRT: | |
1270 | case LSHIFTRT: | |
1271 | *total = COSTS_N_INSNS (1); | |
1272 | return true; | |
1273 | ||
1274 | default: | |
1275 | return false; | |
1276 | } | |
1277 | } | |
1278 | ||
9840d99d | 1279 | /* Ensure mode of ORIG, a REG rtx, is MODE. Returns either ORIG or a |
1280 | new rtx with the correct mode. */ | |
1281 | static inline rtx | |
5c1d8983 | 1282 | force_mode (enum machine_mode mode, rtx orig) |
9840d99d | 1283 | { |
1284 | if (mode == GET_MODE (orig)) | |
1285 | return orig; | |
1286 | ||
ecf2283d | 1287 | gcc_assert (REGNO (orig) < FIRST_PSEUDO_REGISTER); |
9840d99d | 1288 | |
1289 | return gen_rtx_REG (mode, REGNO (orig)); | |
1290 | } | |
1291 | ||
716b2c5a | 1292 | /* Return 1 if *X is a thread-local symbol. */ |
1293 | ||
1294 | static int | |
1295 | pa_tls_symbol_ref_1 (rtx *x, void *data ATTRIBUTE_UNUSED) | |
1296 | { | |
1297 | return PA_SYMBOL_REF_TLS_P (*x); | |
1298 | } | |
1299 | ||
1300 | /* Return 1 if X contains a thread-local symbol. */ | |
1301 | ||
1302 | bool | |
1303 | pa_tls_referenced_p (rtx x) | |
1304 | { | |
1305 | if (!TARGET_HAVE_TLS) | |
1306 | return false; | |
1307 | ||
1308 | return for_each_rtx (&x, &pa_tls_symbol_ref_1, 0); | |
1309 | } | |
1310 | ||
87ad11b0 | 1311 | /* Emit insns to move operands[1] into operands[0]. |
1312 | ||
1313 | Return 1 if we have written out everything that needs to be done to | |
1314 | do the move. Otherwise, return 0 and the caller will emit the move | |
9840d99d | 1315 | normally. |
f756078b | 1316 | |
1317 | Note SCRATCH_REG may not be in the proper mode depending on how it | |
2cecd772 | 1318 | will be used. This routine is responsible for creating a new copy |
f756078b | 1319 | of SCRATCH_REG in the proper mode. */ |
87ad11b0 | 1320 | |
1321 | int | |
5c1d8983 | 1322 | emit_move_sequence (rtx *operands, enum machine_mode mode, rtx scratch_reg) |
87ad11b0 | 1323 | { |
1324 | register rtx operand0 = operands[0]; | |
1325 | register rtx operand1 = operands[1]; | |
4a155b0f | 1326 | register rtx tem; |
87ad11b0 | 1327 | |
dbd3d89d | 1328 | /* We can only handle indexed addresses in the destination operand |
1329 | of floating point stores. Thus, we need to break out indexed | |
1330 | addresses from the destination operand. */ | |
1331 | if (GET_CODE (operand0) == MEM && IS_INDEX_ADDR_P (XEXP (operand0, 0))) | |
1332 | { | |
1333 | /* This is only safe up to the beginning of life analysis. */ | |
ecf2283d | 1334 | gcc_assert (!no_new_pseudos); |
dbd3d89d | 1335 | |
1336 | tem = copy_to_mode_reg (Pmode, XEXP (operand0, 0)); | |
1337 | operand0 = replace_equiv_address (operand0, tem); | |
1338 | } | |
1339 | ||
1340 | /* On targets with non-equivalent space registers, break out unscaled | |
1341 | indexed addresses from the source operand before the final CSE. | |
1342 | We have to do this because the REG_POINTER flag is not correctly | |
1343 | carried through various optimization passes and CSE may substitute | |
1344 | a pseudo without the pointer set for one with the pointer set. As | |
5aedf60c | 1345 | a result, we loose various opportunities to create insns with |
dbd3d89d | 1346 | unscaled indexed addresses. */ |
1347 | if (!TARGET_NO_SPACE_REGS | |
1348 | && !cse_not_expected | |
1349 | && GET_CODE (operand1) == MEM | |
1350 | && GET_CODE (XEXP (operand1, 0)) == PLUS | |
1351 | && REG_P (XEXP (XEXP (operand1, 0), 0)) | |
1352 | && REG_P (XEXP (XEXP (operand1, 0), 1))) | |
1353 | operand1 | |
1354 | = replace_equiv_address (operand1, | |
1355 | copy_to_mode_reg (Pmode, XEXP (operand1, 0))); | |
1356 | ||
2d4dc8d2 | 1357 | if (scratch_reg |
1358 | && reload_in_progress && GET_CODE (operand0) == REG | |
d1e2bb73 | 1359 | && REGNO (operand0) >= FIRST_PSEUDO_REGISTER) |
1360 | operand0 = reg_equiv_mem[REGNO (operand0)]; | |
2d4dc8d2 | 1361 | else if (scratch_reg |
1362 | && reload_in_progress && GET_CODE (operand0) == SUBREG | |
d1e2bb73 | 1363 | && GET_CODE (SUBREG_REG (operand0)) == REG |
1364 | && REGNO (SUBREG_REG (operand0)) >= FIRST_PSEUDO_REGISTER) | |
a3afad75 | 1365 | { |
701e46d0 | 1366 | /* We must not alter SUBREG_BYTE (operand0) since that would confuse |
d3c3f88d | 1367 | the code which tracks sets/uses for delete_output_reload. */ |
1368 | rtx temp = gen_rtx_SUBREG (GET_MODE (operand0), | |
1369 | reg_equiv_mem [REGNO (SUBREG_REG (operand0))], | |
701e46d0 | 1370 | SUBREG_BYTE (operand0)); |
e00b80b2 | 1371 | operand0 = alter_subreg (&temp); |
a3afad75 | 1372 | } |
d1e2bb73 | 1373 | |
2d4dc8d2 | 1374 | if (scratch_reg |
1375 | && reload_in_progress && GET_CODE (operand1) == REG | |
d1e2bb73 | 1376 | && REGNO (operand1) >= FIRST_PSEUDO_REGISTER) |
1377 | operand1 = reg_equiv_mem[REGNO (operand1)]; | |
2d4dc8d2 | 1378 | else if (scratch_reg |
1379 | && reload_in_progress && GET_CODE (operand1) == SUBREG | |
d1e2bb73 | 1380 | && GET_CODE (SUBREG_REG (operand1)) == REG |
1381 | && REGNO (SUBREG_REG (operand1)) >= FIRST_PSEUDO_REGISTER) | |
a3afad75 | 1382 | { |
701e46d0 | 1383 | /* We must not alter SUBREG_BYTE (operand0) since that would confuse |
d3c3f88d | 1384 | the code which tracks sets/uses for delete_output_reload. */ |
1385 | rtx temp = gen_rtx_SUBREG (GET_MODE (operand1), | |
1386 | reg_equiv_mem [REGNO (SUBREG_REG (operand1))], | |
701e46d0 | 1387 | SUBREG_BYTE (operand1)); |
e00b80b2 | 1388 | operand1 = alter_subreg (&temp); |
a3afad75 | 1389 | } |
d1e2bb73 | 1390 | |
2d4dc8d2 | 1391 | if (scratch_reg && reload_in_progress && GET_CODE (operand0) == MEM |
4a155b0f | 1392 | && ((tem = find_replacement (&XEXP (operand0, 0))) |
1393 | != XEXP (operand0, 0))) | |
ed498904 | 1394 | operand0 = replace_equiv_address (operand0, tem); |
dbd3d89d | 1395 | |
2d4dc8d2 | 1396 | if (scratch_reg && reload_in_progress && GET_CODE (operand1) == MEM |
4a155b0f | 1397 | && ((tem = find_replacement (&XEXP (operand1, 0))) |
1398 | != XEXP (operand1, 0))) | |
ed498904 | 1399 | operand1 = replace_equiv_address (operand1, tem); |
4a155b0f | 1400 | |
e8fdbafa | 1401 | /* Handle secondary reloads for loads/stores of FP registers from |
047e3121 | 1402 | REG+D addresses where D does not fit in 5 or 14 bits, including |
42819d4e | 1403 | (subreg (mem (addr))) cases. */ |
6bcdc1fb | 1404 | if (scratch_reg |
1405 | && fp_reg_operand (operand0, mode) | |
6b1c36c2 | 1406 | && ((GET_CODE (operand1) == MEM |
047e3121 | 1407 | && !memory_address_p ((GET_MODE_SIZE (mode) == 4 ? SFmode : DFmode), |
1408 | XEXP (operand1, 0))) | |
6b1c36c2 | 1409 | || ((GET_CODE (operand1) == SUBREG |
1410 | && GET_CODE (XEXP (operand1, 0)) == MEM | |
047e3121 | 1411 | && !memory_address_p ((GET_MODE_SIZE (mode) == 4 |
1412 | ? SFmode : DFmode), | |
1413 | XEXP (XEXP (operand1, 0), 0)))))) | |
d6f01525 | 1414 | { |
6b1c36c2 | 1415 | if (GET_CODE (operand1) == SUBREG) |
1416 | operand1 = XEXP (operand1, 0); | |
1417 | ||
f756078b | 1418 | /* SCRATCH_REG will hold an address and maybe the actual data. We want |
1419 | it in WORD_MODE regardless of what mode it was originally given | |
1420 | to us. */ | |
9840d99d | 1421 | scratch_reg = force_mode (word_mode, scratch_reg); |
7ee39d73 | 1422 | |
1423 | /* D might not fit in 14 bits either; for such cases load D into | |
1424 | scratch reg. */ | |
440c23df | 1425 | if (!memory_address_p (Pmode, XEXP (operand1, 0))) |
7ee39d73 | 1426 | { |
1427 | emit_move_insn (scratch_reg, XEXP (XEXP (operand1, 0), 1)); | |
dbd3d89d | 1428 | emit_move_insn (scratch_reg, |
1429 | gen_rtx_fmt_ee (GET_CODE (XEXP (operand1, 0)), | |
1430 | Pmode, | |
1431 | XEXP (XEXP (operand1, 0), 0), | |
1432 | scratch_reg)); | |
7ee39d73 | 1433 | } |
1434 | else | |
1435 | emit_move_insn (scratch_reg, XEXP (operand1, 0)); | |
7014838c | 1436 | emit_insn (gen_rtx_SET (VOIDmode, operand0, |
ed498904 | 1437 | replace_equiv_address (operand1, scratch_reg))); |
d6f01525 | 1438 | return 1; |
1439 | } | |
6bcdc1fb | 1440 | else if (scratch_reg |
1441 | && fp_reg_operand (operand1, mode) | |
6b1c36c2 | 1442 | && ((GET_CODE (operand0) == MEM |
047e3121 | 1443 | && !memory_address_p ((GET_MODE_SIZE (mode) == 4 |
1444 | ? SFmode : DFmode), | |
1445 | XEXP (operand0, 0))) | |
6b1c36c2 | 1446 | || ((GET_CODE (operand0) == SUBREG) |
1447 | && GET_CODE (XEXP (operand0, 0)) == MEM | |
047e3121 | 1448 | && !memory_address_p ((GET_MODE_SIZE (mode) == 4 |
1449 | ? SFmode : DFmode), | |
6bcdc1fb | 1450 | XEXP (XEXP (operand0, 0), 0))))) |
d6f01525 | 1451 | { |
6b1c36c2 | 1452 | if (GET_CODE (operand0) == SUBREG) |
1453 | operand0 = XEXP (operand0, 0); | |
1454 | ||
f756078b | 1455 | /* SCRATCH_REG will hold an address and maybe the actual data. We want |
1456 | it in WORD_MODE regardless of what mode it was originally given | |
1457 | to us. */ | |
9840d99d | 1458 | scratch_reg = force_mode (word_mode, scratch_reg); |
f756078b | 1459 | |
7ee39d73 | 1460 | /* D might not fit in 14 bits either; for such cases load D into |
1461 | scratch reg. */ | |
440c23df | 1462 | if (!memory_address_p (Pmode, XEXP (operand0, 0))) |
7ee39d73 | 1463 | { |
1464 | emit_move_insn (scratch_reg, XEXP (XEXP (operand0, 0), 1)); | |
ad851752 | 1465 | emit_move_insn (scratch_reg, gen_rtx_fmt_ee (GET_CODE (XEXP (operand0, |
1466 | 0)), | |
440c23df | 1467 | Pmode, |
ad851752 | 1468 | XEXP (XEXP (operand0, 0), |
1469 | 0), | |
1470 | scratch_reg)); | |
7ee39d73 | 1471 | } |
1472 | else | |
1473 | emit_move_insn (scratch_reg, XEXP (operand0, 0)); | |
ed498904 | 1474 | emit_insn (gen_rtx_SET (VOIDmode, |
1475 | replace_equiv_address (operand0, scratch_reg), | |
ad851752 | 1476 | operand1)); |
d6f01525 | 1477 | return 1; |
1478 | } | |
753bd06a | 1479 | /* Handle secondary reloads for loads of FP registers from constant |
1480 | expressions by forcing the constant into memory. | |
1481 | ||
6bcdc1fb | 1482 | Use scratch_reg to hold the address of the memory location. |
753bd06a | 1483 | |
9dc4cbf1 | 1484 | The proper fix is to change PREFERRED_RELOAD_CLASS to return |
87fcb603 | 1485 | NO_REGS when presented with a const_int and a register class |
753bd06a | 1486 | containing only FP registers. Doing so unfortunately creates |
1487 | more problems than it solves. Fix this for 2.5. */ | |
6bcdc1fb | 1488 | else if (scratch_reg |
753bd06a | 1489 | && CONSTANT_P (operand1) |
6bcdc1fb | 1490 | && fp_reg_operand (operand0, mode)) |
753bd06a | 1491 | { |
ed498904 | 1492 | rtx const_mem, xoperands[2]; |
753bd06a | 1493 | |
f756078b | 1494 | /* SCRATCH_REG will hold an address and maybe the actual data. We want |
1495 | it in WORD_MODE regardless of what mode it was originally given | |
1496 | to us. */ | |
9840d99d | 1497 | scratch_reg = force_mode (word_mode, scratch_reg); |
f756078b | 1498 | |
753bd06a | 1499 | /* Force the constant into memory and put the address of the |
1500 | memory location into scratch_reg. */ | |
ed498904 | 1501 | const_mem = force_const_mem (mode, operand1); |
753bd06a | 1502 | xoperands[0] = scratch_reg; |
ed498904 | 1503 | xoperands[1] = XEXP (const_mem, 0); |
8f258b49 | 1504 | emit_move_sequence (xoperands, Pmode, 0); |
753bd06a | 1505 | |
1506 | /* Now load the destination register. */ | |
7014838c | 1507 | emit_insn (gen_rtx_SET (mode, operand0, |
ed498904 | 1508 | replace_equiv_address (const_mem, scratch_reg))); |
753bd06a | 1509 | return 1; |
1510 | } | |
e8fdbafa | 1511 | /* Handle secondary reloads for SAR. These occur when trying to load |
2a170404 | 1512 | the SAR from memory, FP register, or with a constant. */ |
6bcdc1fb | 1513 | else if (scratch_reg |
1514 | && GET_CODE (operand0) == REG | |
2a170404 | 1515 | && REGNO (operand0) < FIRST_PSEUDO_REGISTER |
e8fdbafa | 1516 | && REGNO_REG_CLASS (REGNO (operand0)) == SHIFT_REGS |
1517 | && (GET_CODE (operand1) == MEM | |
7d43e0f7 | 1518 | || GET_CODE (operand1) == CONST_INT |
e8fdbafa | 1519 | || (GET_CODE (operand1) == REG |
6bcdc1fb | 1520 | && FP_REG_CLASS_P (REGNO_REG_CLASS (REGNO (operand1)))))) |
e8fdbafa | 1521 | { |
7eac600c | 1522 | /* D might not fit in 14 bits either; for such cases load D into |
1523 | scratch reg. */ | |
1524 | if (GET_CODE (operand1) == MEM | |
440c23df | 1525 | && !memory_address_p (Pmode, XEXP (operand1, 0))) |
7eac600c | 1526 | { |
fc4d127d | 1527 | /* We are reloading the address into the scratch register, so we |
1528 | want to make sure the scratch register is a full register. */ | |
9840d99d | 1529 | scratch_reg = force_mode (word_mode, scratch_reg); |
fc4d127d | 1530 | |
9840d99d | 1531 | emit_move_insn (scratch_reg, XEXP (XEXP (operand1, 0), 1)); |
ad851752 | 1532 | emit_move_insn (scratch_reg, gen_rtx_fmt_ee (GET_CODE (XEXP (operand1, |
1533 | 0)), | |
440c23df | 1534 | Pmode, |
ad851752 | 1535 | XEXP (XEXP (operand1, 0), |
1536 | 0), | |
1537 | scratch_reg)); | |
fc4d127d | 1538 | |
1539 | /* Now we are going to load the scratch register from memory, | |
1540 | we want to load it in the same width as the original MEM, | |
1541 | which must be the same as the width of the ultimate destination, | |
1542 | OPERAND0. */ | |
9840d99d | 1543 | scratch_reg = force_mode (GET_MODE (operand0), scratch_reg); |
1544 | ||
ed498904 | 1545 | emit_move_insn (scratch_reg, |
1546 | replace_equiv_address (operand1, scratch_reg)); | |
7eac600c | 1547 | } |
1548 | else | |
fc4d127d | 1549 | { |
1550 | /* We want to load the scratch register using the same mode as | |
1551 | the ultimate destination. */ | |
9840d99d | 1552 | scratch_reg = force_mode (GET_MODE (operand0), scratch_reg); |
1553 | ||
fc4d127d | 1554 | emit_move_insn (scratch_reg, operand1); |
1555 | } | |
1556 | ||
1557 | /* And emit the insn to set the ultimate destination. We know that | |
1558 | the scratch register has the same mode as the destination at this | |
1559 | point. */ | |
e8fdbafa | 1560 | emit_move_insn (operand0, scratch_reg); |
1561 | return 1; | |
1562 | } | |
dbd3d89d | 1563 | /* Handle the most common case: storing into a register. */ |
d6f01525 | 1564 | else if (register_operand (operand0, mode)) |
87ad11b0 | 1565 | { |
1566 | if (register_operand (operand1, mode) | |
93f6e1c7 | 1567 | || (GET_CODE (operand1) == CONST_INT |
1568 | && cint_ok_for_move (INTVAL (operand1))) | |
891b55b4 | 1569 | || (operand1 == CONST0_RTX (mode)) |
87ad11b0 | 1570 | || (GET_CODE (operand1) == HIGH |
df0651dc | 1571 | && !symbolic_operand (XEXP (operand1, 0), VOIDmode)) |
87ad11b0 | 1572 | /* Only `general_operands' can come here, so MEM is ok. */ |
1573 | || GET_CODE (operand1) == MEM) | |
1574 | { | |
dbd3d89d | 1575 | /* Various sets are created during RTL generation which don't |
1576 | have the REG_POINTER flag correctly set. After the CSE pass, | |
1577 | instruction recognition can fail if we don't consistently | |
1578 | set this flag when performing register copies. This should | |
1579 | also improve the opportunities for creating insns that use | |
1580 | unscaled indexing. */ | |
1581 | if (REG_P (operand0) && REG_P (operand1)) | |
1582 | { | |
1583 | if (REG_POINTER (operand1) | |
1584 | && !REG_POINTER (operand0) | |
1585 | && !HARD_REGISTER_P (operand0)) | |
1586 | copy_reg_pointer (operand0, operand1); | |
1587 | else if (REG_POINTER (operand0) | |
1588 | && !REG_POINTER (operand1) | |
1589 | && !HARD_REGISTER_P (operand1)) | |
1590 | copy_reg_pointer (operand1, operand0); | |
1591 | } | |
1592 | ||
1593 | /* When MEMs are broken out, the REG_POINTER flag doesn't | |
1594 | get set. In some cases, we can set the REG_POINTER flag | |
1595 | from the declaration for the MEM. */ | |
1596 | if (REG_P (operand0) | |
1597 | && GET_CODE (operand1) == MEM | |
1598 | && !REG_POINTER (operand0)) | |
1599 | { | |
1600 | tree decl = MEM_EXPR (operand1); | |
1601 | ||
1602 | /* Set the register pointer flag and register alignment | |
1603 | if the declaration for this memory reference is a | |
1604 | pointer type. Fortran indirect argument references | |
1605 | are ignored. */ | |
1606 | if (decl | |
1607 | && !(flag_argument_noalias > 1 | |
1608 | && TREE_CODE (decl) == INDIRECT_REF | |
1609 | && TREE_CODE (TREE_OPERAND (decl, 0)) == PARM_DECL)) | |
1610 | { | |
1611 | tree type; | |
1612 | ||
1613 | /* If this is a COMPONENT_REF, use the FIELD_DECL from | |
1614 | tree operand 1. */ | |
1615 | if (TREE_CODE (decl) == COMPONENT_REF) | |
1616 | decl = TREE_OPERAND (decl, 1); | |
1617 | ||
1618 | type = TREE_TYPE (decl); | |
1619 | if (TREE_CODE (type) == ARRAY_TYPE) | |
1620 | type = get_inner_array_type (type); | |
1621 | ||
1622 | if (POINTER_TYPE_P (type)) | |
1623 | { | |
1624 | int align; | |
1625 | ||
1626 | type = TREE_TYPE (type); | |
1627 | /* Using TYPE_ALIGN_OK is rather conservative as | |
1628 | only the ada frontend actually sets it. */ | |
1629 | align = (TYPE_ALIGN_OK (type) ? TYPE_ALIGN (type) | |
1630 | : BITS_PER_UNIT); | |
1631 | mark_reg_pointer (operand0, align); | |
1632 | } | |
1633 | } | |
1634 | } | |
1635 | ||
ad851752 | 1636 | emit_insn (gen_rtx_SET (VOIDmode, operand0, operand1)); |
87ad11b0 | 1637 | return 1; |
1638 | } | |
1639 | } | |
1640 | else if (GET_CODE (operand0) == MEM) | |
1641 | { | |
85eb4c6e | 1642 | if (mode == DFmode && operand1 == CONST0_RTX (mode) |
1643 | && !(reload_in_progress || reload_completed)) | |
1644 | { | |
1645 | rtx temp = gen_reg_rtx (DFmode); | |
1646 | ||
ad851752 | 1647 | emit_insn (gen_rtx_SET (VOIDmode, temp, operand1)); |
1648 | emit_insn (gen_rtx_SET (VOIDmode, operand0, temp)); | |
85eb4c6e | 1649 | return 1; |
1650 | } | |
891b55b4 | 1651 | if (register_operand (operand1, mode) || operand1 == CONST0_RTX (mode)) |
87ad11b0 | 1652 | { |
1653 | /* Run this case quickly. */ | |
ad851752 | 1654 | emit_insn (gen_rtx_SET (VOIDmode, operand0, operand1)); |
87ad11b0 | 1655 | return 1; |
1656 | } | |
2ff4bf8d | 1657 | if (! (reload_in_progress || reload_completed)) |
87ad11b0 | 1658 | { |
1659 | operands[0] = validize_mem (operand0); | |
1660 | operands[1] = operand1 = force_reg (mode, operand1); | |
1661 | } | |
1662 | } | |
1663 | ||
37a75d53 | 1664 | /* Simplify the source if we need to. |
1665 | Note we do have to handle function labels here, even though we do | |
1666 | not consider them legitimate constants. Loop optimizations can | |
bea60f66 | 1667 | call the emit_move_xxx with one as a source. */ |
57ed30e5 | 1668 | if ((GET_CODE (operand1) != HIGH && immediate_operand (operand1, mode)) |
37a75d53 | 1669 | || function_label_operand (operand1, mode) |
2ee034bc | 1670 | || (GET_CODE (operand1) == HIGH |
63882853 | 1671 | && symbolic_operand (XEXP (operand1, 0), mode))) |
87ad11b0 | 1672 | { |
2ee034bc | 1673 | int ishighonly = 0; |
1674 | ||
1675 | if (GET_CODE (operand1) == HIGH) | |
1676 | { | |
1677 | ishighonly = 1; | |
1678 | operand1 = XEXP (operand1, 0); | |
1679 | } | |
87ad11b0 | 1680 | if (symbolic_operand (operand1, mode)) |
1681 | { | |
005a7dd0 | 1682 | /* Argh. The assembler and linker can't handle arithmetic |
81653f9b | 1683 | involving plabels. |
005a7dd0 | 1684 | |
81653f9b | 1685 | So we force the plabel into memory, load operand0 from |
1686 | the memory location, then add in the constant part. */ | |
37a75d53 | 1687 | if ((GET_CODE (operand1) == CONST |
1688 | && GET_CODE (XEXP (operand1, 0)) == PLUS | |
1689 | && function_label_operand (XEXP (XEXP (operand1, 0), 0), Pmode)) | |
1690 | || function_label_operand (operand1, mode)) | |
005a7dd0 | 1691 | { |
b3d569a0 | 1692 | rtx temp, const_part; |
81653f9b | 1693 | |
1694 | /* Figure out what (if any) scratch register to use. */ | |
1695 | if (reload_in_progress || reload_completed) | |
f756078b | 1696 | { |
1697 | scratch_reg = scratch_reg ? scratch_reg : operand0; | |
1698 | /* SCRATCH_REG will hold an address and maybe the actual | |
1699 | data. We want it in WORD_MODE regardless of what mode it | |
1700 | was originally given to us. */ | |
9840d99d | 1701 | scratch_reg = force_mode (word_mode, scratch_reg); |
f756078b | 1702 | } |
81653f9b | 1703 | else if (flag_pic) |
1704 | scratch_reg = gen_reg_rtx (Pmode); | |
1705 | ||
37a75d53 | 1706 | if (GET_CODE (operand1) == CONST) |
1707 | { | |
1708 | /* Save away the constant part of the expression. */ | |
1709 | const_part = XEXP (XEXP (operand1, 0), 1); | |
ecf2283d | 1710 | gcc_assert (GET_CODE (const_part) == CONST_INT); |
37a75d53 | 1711 | |
1712 | /* Force the function label into memory. */ | |
1713 | temp = force_const_mem (mode, XEXP (XEXP (operand1, 0), 0)); | |
1714 | } | |
1715 | else | |
1716 | { | |
1717 | /* No constant part. */ | |
1718 | const_part = NULL_RTX; | |
005a7dd0 | 1719 | |
37a75d53 | 1720 | /* Force the function label into memory. */ |
1721 | temp = force_const_mem (mode, operand1); | |
1722 | } | |
9840d99d | 1723 | |
81653f9b | 1724 | |
1725 | /* Get the address of the memory location. PIC-ify it if | |
1726 | necessary. */ | |
1727 | temp = XEXP (temp, 0); | |
1728 | if (flag_pic) | |
1729 | temp = legitimize_pic_address (temp, mode, scratch_reg); | |
1730 | ||
1731 | /* Put the address of the memory location into our destination | |
1732 | register. */ | |
1733 | operands[1] = temp; | |
1734 | emit_move_sequence (operands, mode, scratch_reg); | |
1735 | ||
1736 | /* Now load from the memory location into our destination | |
1737 | register. */ | |
ad851752 | 1738 | operands[1] = gen_rtx_MEM (Pmode, operands[0]); |
81653f9b | 1739 | emit_move_sequence (operands, mode, scratch_reg); |
1740 | ||
1741 | /* And add back in the constant part. */ | |
37a75d53 | 1742 | if (const_part != NULL_RTX) |
1743 | expand_inc (operand0, const_part); | |
81653f9b | 1744 | |
1745 | return 1; | |
005a7dd0 | 1746 | } |
1747 | ||
87ad11b0 | 1748 | if (flag_pic) |
1749 | { | |
2ff4bf8d | 1750 | rtx temp; |
1751 | ||
1752 | if (reload_in_progress || reload_completed) | |
f756078b | 1753 | { |
1754 | temp = scratch_reg ? scratch_reg : operand0; | |
1755 | /* TEMP will hold an address and maybe the actual | |
1756 | data. We want it in WORD_MODE regardless of what mode it | |
1757 | was originally given to us. */ | |
9840d99d | 1758 | temp = force_mode (word_mode, temp); |
f756078b | 1759 | } |
2ff4bf8d | 1760 | else |
1761 | temp = gen_reg_rtx (Pmode); | |
6d36483b | 1762 | |
81653f9b | 1763 | /* (const (plus (symbol) (const_int))) must be forced to |
1764 | memory during/after reload if the const_int will not fit | |
1765 | in 14 bits. */ | |
1766 | if (GET_CODE (operand1) == CONST | |
96b86ab6 | 1767 | && GET_CODE (XEXP (operand1, 0)) == PLUS |
1768 | && GET_CODE (XEXP (XEXP (operand1, 0), 1)) == CONST_INT | |
1769 | && !INT_14_BITS (XEXP (XEXP (operand1, 0), 1)) | |
1770 | && (reload_completed || reload_in_progress) | |
1771 | && flag_pic) | |
1772 | { | |
ed498904 | 1773 | rtx const_mem = force_const_mem (mode, operand1); |
4109fd6d | 1774 | operands[1] = legitimize_pic_address (XEXP (const_mem, 0), |
96b86ab6 | 1775 | mode, temp); |
ed498904 | 1776 | operands[1] = replace_equiv_address (const_mem, operands[1]); |
96b86ab6 | 1777 | emit_move_sequence (operands, mode, temp); |
1778 | } | |
005a7dd0 | 1779 | else |
1780 | { | |
1781 | operands[1] = legitimize_pic_address (operand1, mode, temp); | |
dbd3d89d | 1782 | if (REG_P (operand0) && REG_P (operands[1])) |
1783 | copy_reg_pointer (operand0, operands[1]); | |
ad851752 | 1784 | emit_insn (gen_rtx_SET (VOIDmode, operand0, operands[1])); |
005a7dd0 | 1785 | } |
87ad11b0 | 1786 | } |
b4a7bf10 | 1787 | /* On the HPPA, references to data space are supposed to use dp, |
1788 | register 27, but showing it in the RTL inhibits various cse | |
1789 | and loop optimizations. */ | |
6d36483b | 1790 | else |
87ad11b0 | 1791 | { |
005a7dd0 | 1792 | rtx temp, set; |
2ee034bc | 1793 | |
6d36483b | 1794 | if (reload_in_progress || reload_completed) |
f756078b | 1795 | { |
1796 | temp = scratch_reg ? scratch_reg : operand0; | |
1797 | /* TEMP will hold an address and maybe the actual | |
1798 | data. We want it in WORD_MODE regardless of what mode it | |
1799 | was originally given to us. */ | |
9840d99d | 1800 | temp = force_mode (word_mode, temp); |
f756078b | 1801 | } |
2ee034bc | 1802 | else |
1803 | temp = gen_reg_rtx (mode); | |
1804 | ||
42819d4e | 1805 | /* Loading a SYMBOL_REF into a register makes that register |
9840d99d | 1806 | safe to be used as the base in an indexed address. |
42819d4e | 1807 | |
1808 | Don't mark hard registers though. That loses. */ | |
47a61b79 | 1809 | if (GET_CODE (operand0) == REG |
1810 | && REGNO (operand0) >= FIRST_PSEUDO_REGISTER) | |
dbd3d89d | 1811 | mark_reg_pointer (operand0, BITS_PER_UNIT); |
42819d4e | 1812 | if (REGNO (temp) >= FIRST_PSEUDO_REGISTER) |
dbd3d89d | 1813 | mark_reg_pointer (temp, BITS_PER_UNIT); |
1814 | ||
2ee034bc | 1815 | if (ishighonly) |
ad851752 | 1816 | set = gen_rtx_SET (mode, operand0, temp); |
2ee034bc | 1817 | else |
7014838c | 1818 | set = gen_rtx_SET (VOIDmode, |
1819 | operand0, | |
ad851752 | 1820 | gen_rtx_LO_SUM (mode, temp, operand1)); |
6d36483b | 1821 | |
ad851752 | 1822 | emit_insn (gen_rtx_SET (VOIDmode, |
1823 | temp, | |
1824 | gen_rtx_HIGH (mode, operand1))); | |
d2498717 | 1825 | emit_insn (set); |
166bf021 | 1826 | |
87ad11b0 | 1827 | } |
2ee034bc | 1828 | return 1; |
87ad11b0 | 1829 | } |
716b2c5a | 1830 | else if (pa_tls_referenced_p (operand1)) |
1831 | { | |
1832 | rtx tmp = operand1; | |
1833 | rtx addend = NULL; | |
1834 | ||
1835 | if (GET_CODE (tmp) == CONST && GET_CODE (XEXP (tmp, 0)) == PLUS) | |
1836 | { | |
1837 | addend = XEXP (XEXP (tmp, 0), 1); | |
1838 | tmp = XEXP (XEXP (tmp, 0), 0); | |
1839 | } | |
1840 | ||
1841 | gcc_assert (GET_CODE (tmp) == SYMBOL_REF); | |
1842 | tmp = legitimize_tls_address (tmp); | |
1843 | if (addend) | |
1844 | { | |
1845 | tmp = gen_rtx_PLUS (mode, tmp, addend); | |
1846 | tmp = force_operand (tmp, operands[0]); | |
1847 | } | |
1848 | operands[1] = tmp; | |
1849 | } | |
42faba01 | 1850 | else if (GET_CODE (operand1) != CONST_INT |
6bcdc1fb | 1851 | || !cint_ok_for_move (INTVAL (operand1))) |
87ad11b0 | 1852 | { |
6bcdc1fb | 1853 | rtx insn, temp; |
1854 | rtx op1 = operand1; | |
6edde44b | 1855 | HOST_WIDE_INT value = 0; |
6bcdc1fb | 1856 | HOST_WIDE_INT insv = 0; |
1857 | int insert = 0; | |
1858 | ||
6edde44b | 1859 | if (GET_CODE (operand1) == CONST_INT) |
1860 | value = INTVAL (operand1); | |
1861 | ||
6bcdc1fb | 1862 | if (TARGET_64BIT |
1863 | && GET_CODE (operand1) == CONST_INT | |
b7d86581 | 1864 | && HOST_BITS_PER_WIDE_INT > 32 |
5e3c5739 | 1865 | && GET_MODE_BITSIZE (GET_MODE (operand0)) > 32) |
1866 | { | |
b7d86581 | 1867 | HOST_WIDE_INT nval; |
5e3c5739 | 1868 | |
93f6e1c7 | 1869 | /* Extract the low order 32 bits of the value and sign extend. |
1870 | If the new value is the same as the original value, we can | |
1871 | can use the original value as-is. If the new value is | |
1872 | different, we use it and insert the most-significant 32-bits | |
1873 | of the original value into the final result. */ | |
6bcdc1fb | 1874 | nval = ((value & (((HOST_WIDE_INT) 2 << 31) - 1)) |
b7d86581 | 1875 | ^ ((HOST_WIDE_INT) 1 << 31)) - ((HOST_WIDE_INT) 1 << 31); |
6bcdc1fb | 1876 | if (value != nval) |
5e3c5739 | 1877 | { |
93f6e1c7 | 1878 | #if HOST_BITS_PER_WIDE_INT > 32 |
6bcdc1fb | 1879 | insv = value >= 0 ? value >> 32 : ~(~value >> 32); |
93f6e1c7 | 1880 | #endif |
6bcdc1fb | 1881 | insert = 1; |
1882 | value = nval; | |
5e3c5739 | 1883 | operand1 = GEN_INT (nval); |
1884 | } | |
1885 | } | |
2ff4bf8d | 1886 | |
1887 | if (reload_in_progress || reload_completed) | |
6bcdc1fb | 1888 | temp = scratch_reg ? scratch_reg : operand0; |
2ff4bf8d | 1889 | else |
1890 | temp = gen_reg_rtx (mode); | |
1891 | ||
7c4d3047 | 1892 | /* We don't directly split DImode constants on 32-bit targets |
1893 | because PLUS uses an 11-bit immediate and the insn sequence | |
1894 | generated is not as efficient as the one using HIGH/LO_SUM. */ | |
1895 | if (GET_CODE (operand1) == CONST_INT | |
58cac6ba | 1896 | && GET_MODE_BITSIZE (mode) <= BITS_PER_WORD |
6bcdc1fb | 1897 | && GET_MODE_BITSIZE (mode) <= HOST_BITS_PER_WIDE_INT |
1898 | && !insert) | |
93f6e1c7 | 1899 | { |
7c4d3047 | 1900 | /* Directly break constant into high and low parts. This |
93f6e1c7 | 1901 | provides better optimization opportunities because various |
1902 | passes recognize constants split with PLUS but not LO_SUM. | |
1903 | We use a 14-bit signed low part except when the addition | |
1904 | of 0x4000 to the high part might change the sign of the | |
1905 | high part. */ | |
93f6e1c7 | 1906 | HOST_WIDE_INT low = value & 0x3fff; |
1907 | HOST_WIDE_INT high = value & ~ 0x3fff; | |
1908 | ||
1909 | if (low >= 0x2000) | |
1910 | { | |
1911 | if (high == 0x7fffc000 || (mode == HImode && high == 0x4000)) | |
1912 | high += 0x2000; | |
1913 | else | |
1914 | high += 0x4000; | |
1915 | } | |
1916 | ||
1917 | low = value - high; | |
5e3c5739 | 1918 | |
93f6e1c7 | 1919 | emit_insn (gen_rtx_SET (VOIDmode, temp, GEN_INT (high))); |
1920 | operands[1] = gen_rtx_PLUS (mode, temp, GEN_INT (low)); | |
1921 | } | |
1922 | else | |
5e3c5739 | 1923 | { |
93f6e1c7 | 1924 | emit_insn (gen_rtx_SET (VOIDmode, temp, |
1925 | gen_rtx_HIGH (mode, operand1))); | |
1926 | operands[1] = gen_rtx_LO_SUM (mode, temp, operand1); | |
5e3c5739 | 1927 | } |
9840d99d | 1928 | |
6bcdc1fb | 1929 | insn = emit_move_insn (operands[0], operands[1]); |
1930 | ||
1931 | /* Now insert the most significant 32 bits of the value | |
1932 | into the register. When we don't have a second register | |
1933 | available, it could take up to nine instructions to load | |
1934 | a 64-bit integer constant. Prior to reload, we force | |
1935 | constants that would take more than three instructions | |
1936 | to load to the constant pool. During and after reload, | |
1937 | we have to handle all possible values. */ | |
1938 | if (insert) | |
1939 | { | |
1940 | /* Use a HIGH/LO_SUM/INSV sequence if we have a second | |
1941 | register and the value to be inserted is outside the | |
1942 | range that can be loaded with three depdi instructions. */ | |
1943 | if (temp != operand0 && (insv >= 16384 || insv < -16384)) | |
1944 | { | |
1945 | operand1 = GEN_INT (insv); | |
1946 | ||
1947 | emit_insn (gen_rtx_SET (VOIDmode, temp, | |
1948 | gen_rtx_HIGH (mode, operand1))); | |
1949 | emit_move_insn (temp, gen_rtx_LO_SUM (mode, temp, operand1)); | |
1950 | emit_insn (gen_insv (operand0, GEN_INT (32), | |
1951 | const0_rtx, temp)); | |
1952 | } | |
1953 | else | |
1954 | { | |
1955 | int len = 5, pos = 27; | |
1956 | ||
1957 | /* Insert the bits using the depdi instruction. */ | |
1958 | while (pos >= 0) | |
1959 | { | |
1960 | HOST_WIDE_INT v5 = ((insv & 31) ^ 16) - 16; | |
1961 | HOST_WIDE_INT sign = v5 < 0; | |
1962 | ||
1963 | /* Left extend the insertion. */ | |
1964 | insv = (insv >= 0 ? insv >> len : ~(~insv >> len)); | |
1965 | while (pos > 0 && (insv & 1) == sign) | |
1966 | { | |
1967 | insv = (insv >= 0 ? insv >> 1 : ~(~insv >> 1)); | |
1968 | len += 1; | |
1969 | pos -= 1; | |
1970 | } | |
1971 | ||
1972 | emit_insn (gen_insv (operand0, GEN_INT (len), | |
1973 | GEN_INT (pos), GEN_INT (v5))); | |
1974 | ||
1975 | len = pos > 0 && pos < 5 ? pos : 5; | |
1976 | pos -= len; | |
1977 | } | |
1978 | } | |
1979 | } | |
93f6e1c7 | 1980 | |
24153880 | 1981 | set_unique_reg_note (insn, REG_EQUAL, op1); |
93f6e1c7 | 1982 | |
5e3c5739 | 1983 | return 1; |
87ad11b0 | 1984 | } |
1985 | } | |
1986 | /* Now have insn-emit do whatever it normally does. */ | |
1987 | return 0; | |
1988 | } | |
1989 | ||
1946138e | 1990 | /* Examine EXP and return nonzero if it contains an ADDR_EXPR (meaning |
bd49d362 | 1991 | it will need a link/runtime reloc). */ |
1946138e | 1992 | |
1993 | int | |
5c1d8983 | 1994 | reloc_needed (tree exp) |
1946138e | 1995 | { |
1996 | int reloc = 0; | |
1997 | ||
1998 | switch (TREE_CODE (exp)) | |
1999 | { | |
2000 | case ADDR_EXPR: | |
2001 | return 1; | |
2002 | ||
2003 | case PLUS_EXPR: | |
2004 | case MINUS_EXPR: | |
2005 | reloc = reloc_needed (TREE_OPERAND (exp, 0)); | |
2006 | reloc |= reloc_needed (TREE_OPERAND (exp, 1)); | |
2007 | break; | |
2008 | ||
2009 | case NOP_EXPR: | |
2010 | case CONVERT_EXPR: | |
2011 | case NON_LVALUE_EXPR: | |
2012 | reloc = reloc_needed (TREE_OPERAND (exp, 0)); | |
2013 | break; | |
2014 | ||
2015 | case CONSTRUCTOR: | |
2016 | { | |
729d4a82 | 2017 | tree value; |
2018 | unsigned HOST_WIDE_INT ix; | |
2019 | ||
2020 | FOR_EACH_CONSTRUCTOR_VALUE (CONSTRUCTOR_ELTS (exp), ix, value) | |
2021 | if (value) | |
2022 | reloc |= reloc_needed (value); | |
1946138e | 2023 | } |
2024 | break; | |
2025 | ||
2026 | case ERROR_MARK: | |
2027 | break; | |
7d27e4c9 | 2028 | |
2029 | default: | |
2030 | break; | |
1946138e | 2031 | } |
2032 | return reloc; | |
2033 | } | |
2034 | ||
7811991d | 2035 | /* Does operand (which is a symbolic_operand) live in text space? |
2036 | If so, SYMBOL_REF_FLAG, which is set by pa_encode_section_info, | |
2037 | will be true. */ | |
87ad11b0 | 2038 | |
2039 | int | |
5c1d8983 | 2040 | read_only_operand (rtx operand, enum machine_mode mode ATTRIBUTE_UNUSED) |
87ad11b0 | 2041 | { |
2042 | if (GET_CODE (operand) == CONST) | |
2043 | operand = XEXP (XEXP (operand, 0), 0); | |
b4a7bf10 | 2044 | if (flag_pic) |
2045 | { | |
2046 | if (GET_CODE (operand) == SYMBOL_REF) | |
2047 | return SYMBOL_REF_FLAG (operand) && !CONSTANT_POOL_ADDRESS_P (operand); | |
2048 | } | |
2049 | else | |
2050 | { | |
2051 | if (GET_CODE (operand) == SYMBOL_REF) | |
2052 | return SYMBOL_REF_FLAG (operand) || CONSTANT_POOL_ADDRESS_P (operand); | |
2053 | } | |
87ad11b0 | 2054 | return 1; |
2055 | } | |
6d36483b | 2056 | |
87ad11b0 | 2057 | \f |
2058 | /* Return the best assembler insn template | |
5aedf60c | 2059 | for moving operands[1] into operands[0] as a fullword. */ |
611a88e1 | 2060 | const char * |
5c1d8983 | 2061 | singlemove_string (rtx *operands) |
87ad11b0 | 2062 | { |
3745c59b | 2063 | HOST_WIDE_INT intval; |
2064 | ||
87ad11b0 | 2065 | if (GET_CODE (operands[0]) == MEM) |
2066 | return "stw %r1,%0"; | |
3745c59b | 2067 | if (GET_CODE (operands[1]) == MEM) |
87ad11b0 | 2068 | return "ldw %1,%0"; |
3745c59b | 2069 | if (GET_CODE (operands[1]) == CONST_DOUBLE) |
9d5108ea | 2070 | { |
3745c59b | 2071 | long i; |
2072 | REAL_VALUE_TYPE d; | |
9d5108ea | 2073 | |
ecf2283d | 2074 | gcc_assert (GET_MODE (operands[1]) == SFmode); |
9d5108ea | 2075 | |
3745c59b | 2076 | /* Translate the CONST_DOUBLE to a CONST_INT with the same target |
2077 | bit pattern. */ | |
2078 | REAL_VALUE_FROM_CONST_DOUBLE (d, operands[1]); | |
2079 | REAL_VALUE_TO_TARGET_SINGLE (d, i); | |
9d5108ea | 2080 | |
3745c59b | 2081 | operands[1] = GEN_INT (i); |
2082 | /* Fall through to CONST_INT case. */ | |
2083 | } | |
2084 | if (GET_CODE (operands[1]) == CONST_INT) | |
9d5108ea | 2085 | { |
3745c59b | 2086 | intval = INTVAL (operands[1]); |
2087 | ||
2088 | if (VAL_14_BITS_P (intval)) | |
2089 | return "ldi %1,%0"; | |
2090 | else if ((intval & 0x7ff) == 0) | |
2091 | return "ldil L'%1,%0"; | |
2092 | else if (zdepi_cint_p (intval)) | |
e4065f95 | 2093 | return "{zdepi %Z1,%0|depwi,z %Z1,%0}"; |
9d5108ea | 2094 | else |
2095 | return "ldil L'%1,%0\n\tldo R'%1(%0),%0"; | |
2096 | } | |
87ad11b0 | 2097 | return "copy %1,%0"; |
2098 | } | |
2099 | \f | |
2100 | ||
201f01e9 | 2101 | /* Compute position (in OP[1]) and width (in OP[2]) |
2102 | useful for copying IMM to a register using the zdepi | |
2103 | instructions. Store the immediate value to insert in OP[0]. */ | |
611a88e1 | 2104 | static void |
5c1d8983 | 2105 | compute_zdepwi_operands (unsigned HOST_WIDE_INT imm, unsigned *op) |
7e10ba53 | 2106 | { |
e057641f | 2107 | int lsb, len; |
7e10ba53 | 2108 | |
e057641f | 2109 | /* Find the least significant set bit in IMM. */ |
2110 | for (lsb = 0; lsb < 32; lsb++) | |
7e10ba53 | 2111 | { |
e057641f | 2112 | if ((imm & 1) != 0) |
7e10ba53 | 2113 | break; |
e057641f | 2114 | imm >>= 1; |
7e10ba53 | 2115 | } |
2116 | ||
e057641f | 2117 | /* Choose variants based on *sign* of the 5-bit field. */ |
2118 | if ((imm & 0x10) == 0) | |
2119 | len = (lsb <= 28) ? 4 : 32 - lsb; | |
7e10ba53 | 2120 | else |
2121 | { | |
e057641f | 2122 | /* Find the width of the bitstring in IMM. */ |
2123 | for (len = 5; len < 32; len++) | |
7e10ba53 | 2124 | { |
e057641f | 2125 | if ((imm & (1 << len)) == 0) |
7e10ba53 | 2126 | break; |
7e10ba53 | 2127 | } |
2128 | ||
e057641f | 2129 | /* Sign extend IMM as a 5-bit value. */ |
2130 | imm = (imm & 0xf) - 0x10; | |
7e10ba53 | 2131 | } |
2132 | ||
42faba01 | 2133 | op[0] = imm; |
2134 | op[1] = 31 - lsb; | |
2135 | op[2] = len; | |
7e10ba53 | 2136 | } |
2137 | ||
5e3c5739 | 2138 | /* Compute position (in OP[1]) and width (in OP[2]) |
2139 | useful for copying IMM to a register using the depdi,z | |
2140 | instructions. Store the immediate value to insert in OP[0]. */ | |
2141 | void | |
5c1d8983 | 2142 | compute_zdepdi_operands (unsigned HOST_WIDE_INT imm, unsigned *op) |
5e3c5739 | 2143 | { |
2144 | HOST_WIDE_INT lsb, len; | |
2145 | ||
2146 | /* Find the least significant set bit in IMM. */ | |
2147 | for (lsb = 0; lsb < HOST_BITS_PER_WIDE_INT; lsb++) | |
2148 | { | |
2149 | if ((imm & 1) != 0) | |
2150 | break; | |
2151 | imm >>= 1; | |
2152 | } | |
2153 | ||
2154 | /* Choose variants based on *sign* of the 5-bit field. */ | |
2155 | if ((imm & 0x10) == 0) | |
2156 | len = ((lsb <= HOST_BITS_PER_WIDE_INT - 4) | |
2157 | ? 4 : HOST_BITS_PER_WIDE_INT - lsb); | |
2158 | else | |
2159 | { | |
2160 | /* Find the width of the bitstring in IMM. */ | |
2161 | for (len = 5; len < HOST_BITS_PER_WIDE_INT; len++) | |
2162 | { | |
ea52c577 | 2163 | if ((imm & ((unsigned HOST_WIDE_INT) 1 << len)) == 0) |
5e3c5739 | 2164 | break; |
2165 | } | |
2166 | ||
2167 | /* Sign extend IMM as a 5-bit value. */ | |
2168 | imm = (imm & 0xf) - 0x10; | |
2169 | } | |
2170 | ||
2171 | op[0] = imm; | |
2172 | op[1] = 63 - lsb; | |
2173 | op[2] = len; | |
2174 | } | |
2175 | ||
87ad11b0 | 2176 | /* Output assembler code to perform a doubleword move insn |
2177 | with operands OPERANDS. */ | |
2178 | ||
611a88e1 | 2179 | const char * |
5c1d8983 | 2180 | output_move_double (rtx *operands) |
87ad11b0 | 2181 | { |
2182 | enum { REGOP, OFFSOP, MEMOP, CNSTOP, RNDOP } optype0, optype1; | |
2183 | rtx latehalf[2]; | |
2184 | rtx addreg0 = 0, addreg1 = 0; | |
2185 | ||
2186 | /* First classify both operands. */ | |
2187 | ||
2188 | if (REG_P (operands[0])) | |
2189 | optype0 = REGOP; | |
2190 | else if (offsettable_memref_p (operands[0])) | |
2191 | optype0 = OFFSOP; | |
2192 | else if (GET_CODE (operands[0]) == MEM) | |
2193 | optype0 = MEMOP; | |
2194 | else | |
2195 | optype0 = RNDOP; | |
2196 | ||
2197 | if (REG_P (operands[1])) | |
2198 | optype1 = REGOP; | |
2199 | else if (CONSTANT_P (operands[1])) | |
2200 | optype1 = CNSTOP; | |
2201 | else if (offsettable_memref_p (operands[1])) | |
2202 | optype1 = OFFSOP; | |
2203 | else if (GET_CODE (operands[1]) == MEM) | |
2204 | optype1 = MEMOP; | |
2205 | else | |
2206 | optype1 = RNDOP; | |
2207 | ||
2208 | /* Check for the cases that the operand constraints are not | |
ecf2283d | 2209 | supposed to allow to happen. */ |
2210 | gcc_assert (optype0 == REGOP || optype1 == REGOP); | |
87ad11b0 | 2211 | |
e106b699 | 2212 | /* Handle copies between general and floating registers. */ |
2213 | ||
2214 | if (optype0 == REGOP && optype1 == REGOP | |
2215 | && FP_REG_P (operands[0]) ^ FP_REG_P (operands[1])) | |
2216 | { | |
2217 | if (FP_REG_P (operands[0])) | |
2218 | { | |
2219 | output_asm_insn ("{stws|stw} %1,-16(%%sp)", operands); | |
2220 | output_asm_insn ("{stws|stw} %R1,-12(%%sp)", operands); | |
2221 | return "{fldds|fldd} -16(%%sp),%0"; | |
2222 | } | |
2223 | else | |
2224 | { | |
2225 | output_asm_insn ("{fstds|fstd} %1,-16(%%sp)", operands); | |
2226 | output_asm_insn ("{ldws|ldw} -16(%%sp),%0", operands); | |
2227 | return "{ldws|ldw} -12(%%sp),%R0"; | |
2228 | } | |
2229 | } | |
2230 | ||
87ad11b0 | 2231 | /* Handle auto decrementing and incrementing loads and stores |
2232 | specifically, since the structure of the function doesn't work | |
2233 | for them without major modification. Do it better when we learn | |
2234 | this port about the general inc/dec addressing of PA. | |
2235 | (This was written by tege. Chide him if it doesn't work.) */ | |
2236 | ||
2237 | if (optype0 == MEMOP) | |
2238 | { | |
1df0058a | 2239 | /* We have to output the address syntax ourselves, since print_operand |
2240 | doesn't deal with the addresses we want to use. Fix this later. */ | |
2241 | ||
87ad11b0 | 2242 | rtx addr = XEXP (operands[0], 0); |
1df0058a | 2243 | if (GET_CODE (addr) == POST_INC || GET_CODE (addr) == POST_DEC) |
87ad11b0 | 2244 | { |
ad851752 | 2245 | rtx high_reg = gen_rtx_SUBREG (SImode, operands[1], 0); |
1df0058a | 2246 | |
2247 | operands[0] = XEXP (addr, 0); | |
ecf2283d | 2248 | gcc_assert (GET_CODE (operands[1]) == REG |
2249 | && GET_CODE (operands[0]) == REG); | |
1df0058a | 2250 | |
ecf2283d | 2251 | gcc_assert (!reg_overlap_mentioned_p (high_reg, addr)); |
2252 | ||
2253 | /* No overlap between high target register and address | |
2254 | register. (We do this in a non-obvious way to | |
2255 | save a register file writeback) */ | |
2256 | if (GET_CODE (addr) == POST_INC) | |
2257 | return "{stws|stw},ma %1,8(%0)\n\tstw %R1,-4(%0)"; | |
2258 | return "{stws|stw},ma %1,-8(%0)\n\tstw %R1,12(%0)"; | |
a3217f65 | 2259 | } |
1df0058a | 2260 | else if (GET_CODE (addr) == PRE_INC || GET_CODE (addr) == PRE_DEC) |
a3217f65 | 2261 | { |
ad851752 | 2262 | rtx high_reg = gen_rtx_SUBREG (SImode, operands[1], 0); |
1df0058a | 2263 | |
2264 | operands[0] = XEXP (addr, 0); | |
ecf2283d | 2265 | gcc_assert (GET_CODE (operands[1]) == REG |
2266 | && GET_CODE (operands[0]) == REG); | |
2267 | ||
2268 | gcc_assert (!reg_overlap_mentioned_p (high_reg, addr)); | |
2269 | /* No overlap between high target register and address | |
2270 | register. (We do this in a non-obvious way to save a | |
2271 | register file writeback) */ | |
2272 | if (GET_CODE (addr) == PRE_INC) | |
2273 | return "{stws|stw},mb %1,8(%0)\n\tstw %R1,4(%0)"; | |
2274 | return "{stws|stw},mb %1,-8(%0)\n\tstw %R1,4(%0)"; | |
87ad11b0 | 2275 | } |
2276 | } | |
2277 | if (optype1 == MEMOP) | |
2278 | { | |
2279 | /* We have to output the address syntax ourselves, since print_operand | |
2280 | doesn't deal with the addresses we want to use. Fix this later. */ | |
2281 | ||
2282 | rtx addr = XEXP (operands[1], 0); | |
2283 | if (GET_CODE (addr) == POST_INC || GET_CODE (addr) == POST_DEC) | |
2284 | { | |
ad851752 | 2285 | rtx high_reg = gen_rtx_SUBREG (SImode, operands[0], 0); |
87ad11b0 | 2286 | |
2287 | operands[1] = XEXP (addr, 0); | |
ecf2283d | 2288 | gcc_assert (GET_CODE (operands[0]) == REG |
2289 | && GET_CODE (operands[1]) == REG); | |
87ad11b0 | 2290 | |
2291 | if (!reg_overlap_mentioned_p (high_reg, addr)) | |
2292 | { | |
2293 | /* No overlap between high target register and address | |
3857fa62 | 2294 | register. (We do this in a non-obvious way to |
87ad11b0 | 2295 | save a register file writeback) */ |
2296 | if (GET_CODE (addr) == POST_INC) | |
e4065f95 | 2297 | return "{ldws|ldw},ma 8(%1),%0\n\tldw -4(%1),%R0"; |
01fd4b49 | 2298 | return "{ldws|ldw},ma -8(%1),%0\n\tldw 12(%1),%R0"; |
87ad11b0 | 2299 | } |
2300 | else | |
2301 | { | |
2302 | /* This is an undefined situation. We should load into the | |
2303 | address register *and* update that register. Probably | |
2304 | we don't need to handle this at all. */ | |
2305 | if (GET_CODE (addr) == POST_INC) | |
e4065f95 | 2306 | return "ldw 4(%1),%R0\n\t{ldws|ldw},ma 8(%1),%0"; |
2307 | return "ldw 4(%1),%R0\n\t{ldws|ldw},ma -8(%1),%0"; | |
87ad11b0 | 2308 | } |
2309 | } | |
2310 | else if (GET_CODE (addr) == PRE_INC || GET_CODE (addr) == PRE_DEC) | |
2311 | { | |
ad851752 | 2312 | rtx high_reg = gen_rtx_SUBREG (SImode, operands[0], 0); |
87ad11b0 | 2313 | |
2314 | operands[1] = XEXP (addr, 0); | |
ecf2283d | 2315 | gcc_assert (GET_CODE (operands[0]) == REG |
2316 | && GET_CODE (operands[1]) == REG); | |
87ad11b0 | 2317 | |
2318 | if (!reg_overlap_mentioned_p (high_reg, addr)) | |
2319 | { | |
2320 | /* No overlap between high target register and address | |
3857fa62 | 2321 | register. (We do this in a non-obvious way to |
87ad11b0 | 2322 | save a register file writeback) */ |
2323 | if (GET_CODE (addr) == PRE_INC) | |
e4065f95 | 2324 | return "{ldws|ldw},mb 8(%1),%0\n\tldw 4(%1),%R0"; |
2325 | return "{ldws|ldw},mb -8(%1),%0\n\tldw 4(%1),%R0"; | |
87ad11b0 | 2326 | } |
2327 | else | |
2328 | { | |
2329 | /* This is an undefined situation. We should load into the | |
2330 | address register *and* update that register. Probably | |
2331 | we don't need to handle this at all. */ | |
2332 | if (GET_CODE (addr) == PRE_INC) | |
e4065f95 | 2333 | return "ldw 12(%1),%R0\n\t{ldws|ldw},mb 8(%1),%0"; |
2334 | return "ldw -4(%1),%R0\n\t{ldws|ldw},mb -8(%1),%0"; | |
87ad11b0 | 2335 | } |
2336 | } | |
12b02046 | 2337 | else if (GET_CODE (addr) == PLUS |
2338 | && GET_CODE (XEXP (addr, 0)) == MULT) | |
2339 | { | |
ad851752 | 2340 | rtx high_reg = gen_rtx_SUBREG (SImode, operands[0], 0); |
12b02046 | 2341 | |
2342 | if (!reg_overlap_mentioned_p (high_reg, addr)) | |
2343 | { | |
2344 | rtx xoperands[3]; | |
2345 | ||
2346 | xoperands[0] = high_reg; | |
2347 | xoperands[1] = XEXP (addr, 1); | |
2348 | xoperands[2] = XEXP (XEXP (addr, 0), 0); | |
2349 | xoperands[3] = XEXP (XEXP (addr, 0), 1); | |
e4065f95 | 2350 | output_asm_insn ("{sh%O3addl %2,%1,%0|shladd,l %2,%O3,%1,%0}", |
2351 | xoperands); | |
34940871 | 2352 | return "ldw 4(%0),%R0\n\tldw 0(%0),%0"; |
12b02046 | 2353 | } |
2354 | else | |
2355 | { | |
2356 | rtx xoperands[3]; | |
2357 | ||
2358 | xoperands[0] = high_reg; | |
2359 | xoperands[1] = XEXP (addr, 1); | |
2360 | xoperands[2] = XEXP (XEXP (addr, 0), 0); | |
2361 | xoperands[3] = XEXP (XEXP (addr, 0), 1); | |
e4065f95 | 2362 | output_asm_insn ("{sh%O3addl %2,%1,%R0|shladd,l %2,%O3,%1,%R0}", |
2363 | xoperands); | |
34940871 | 2364 | return "ldw 0(%R0),%0\n\tldw 4(%R0),%R0"; |
12b02046 | 2365 | } |
12b02046 | 2366 | } |
87ad11b0 | 2367 | } |
2368 | ||
2369 | /* If an operand is an unoffsettable memory ref, find a register | |
2370 | we can increment temporarily to make it refer to the second word. */ | |
2371 | ||
2372 | if (optype0 == MEMOP) | |
2373 | addreg0 = find_addr_reg (XEXP (operands[0], 0)); | |
2374 | ||
2375 | if (optype1 == MEMOP) | |
2376 | addreg1 = find_addr_reg (XEXP (operands[1], 0)); | |
2377 | ||
2378 | /* Ok, we can do one word at a time. | |
2379 | Normally we do the low-numbered word first. | |
2380 | ||
2381 | In either case, set up in LATEHALF the operands to use | |
2382 | for the high-numbered word and in some cases alter the | |
2383 | operands in OPERANDS to be suitable for the low-numbered word. */ | |
2384 | ||
2385 | if (optype0 == REGOP) | |
ad851752 | 2386 | latehalf[0] = gen_rtx_REG (SImode, REGNO (operands[0]) + 1); |
87ad11b0 | 2387 | else if (optype0 == OFFSOP) |
eafc6604 | 2388 | latehalf[0] = adjust_address (operands[0], SImode, 4); |
87ad11b0 | 2389 | else |
2390 | latehalf[0] = operands[0]; | |
2391 | ||
2392 | if (optype1 == REGOP) | |
ad851752 | 2393 | latehalf[1] = gen_rtx_REG (SImode, REGNO (operands[1]) + 1); |
87ad11b0 | 2394 | else if (optype1 == OFFSOP) |
eafc6604 | 2395 | latehalf[1] = adjust_address (operands[1], SImode, 4); |
87ad11b0 | 2396 | else if (optype1 == CNSTOP) |
2397 | split_double (operands[1], &operands[1], &latehalf[1]); | |
2398 | else | |
2399 | latehalf[1] = operands[1]; | |
2400 | ||
2401 | /* If the first move would clobber the source of the second one, | |
2402 | do them in the other order. | |
2403 | ||
cf489d53 | 2404 | This can happen in two cases: |
87ad11b0 | 2405 | |
cf489d53 | 2406 | mem -> register where the first half of the destination register |
2407 | is the same register used in the memory's address. Reload | |
2408 | can create such insns. | |
87ad11b0 | 2409 | |
cf489d53 | 2410 | mem in this case will be either register indirect or register |
9840d99d | 2411 | indirect plus a valid offset. |
cf489d53 | 2412 | |
2413 | register -> register move where REGNO(dst) == REGNO(src + 1) | |
9840d99d | 2414 | someone (Tim/Tege?) claimed this can happen for parameter loads. |
cf489d53 | 2415 | |
2416 | Handle mem -> register case first. */ | |
2417 | if (optype0 == REGOP | |
2418 | && (optype1 == MEMOP || optype1 == OFFSOP) | |
2419 | && refers_to_regno_p (REGNO (operands[0]), REGNO (operands[0]) + 1, | |
2420 | operands[1], 0)) | |
87ad11b0 | 2421 | { |
87ad11b0 | 2422 | /* Do the late half first. */ |
2423 | if (addreg1) | |
6a5d085a | 2424 | output_asm_insn ("ldo 4(%0),%0", &addreg1); |
87ad11b0 | 2425 | output_asm_insn (singlemove_string (latehalf), latehalf); |
cf489d53 | 2426 | |
2427 | /* Then clobber. */ | |
87ad11b0 | 2428 | if (addreg1) |
6a5d085a | 2429 | output_asm_insn ("ldo -4(%0),%0", &addreg1); |
87ad11b0 | 2430 | return singlemove_string (operands); |
2431 | } | |
2432 | ||
cf489d53 | 2433 | /* Now handle register -> register case. */ |
c4fa5937 | 2434 | if (optype0 == REGOP && optype1 == REGOP |
2435 | && REGNO (operands[0]) == REGNO (operands[1]) + 1) | |
2436 | { | |
2437 | output_asm_insn (singlemove_string (latehalf), latehalf); | |
2438 | return singlemove_string (operands); | |
2439 | } | |
2440 | ||
87ad11b0 | 2441 | /* Normal case: do the two words, low-numbered first. */ |
2442 | ||
2443 | output_asm_insn (singlemove_string (operands), operands); | |
2444 | ||
2445 | /* Make any unoffsettable addresses point at high-numbered word. */ | |
2446 | if (addreg0) | |
6a5d085a | 2447 | output_asm_insn ("ldo 4(%0),%0", &addreg0); |
87ad11b0 | 2448 | if (addreg1) |
6a5d085a | 2449 | output_asm_insn ("ldo 4(%0),%0", &addreg1); |
87ad11b0 | 2450 | |
2451 | /* Do that word. */ | |
2452 | output_asm_insn (singlemove_string (latehalf), latehalf); | |
2453 | ||
2454 | /* Undo the adds we just did. */ | |
2455 | if (addreg0) | |
6a5d085a | 2456 | output_asm_insn ("ldo -4(%0),%0", &addreg0); |
87ad11b0 | 2457 | if (addreg1) |
6a5d085a | 2458 | output_asm_insn ("ldo -4(%0),%0", &addreg1); |
87ad11b0 | 2459 | |
2460 | return ""; | |
2461 | } | |
2462 | \f | |
611a88e1 | 2463 | const char * |
5c1d8983 | 2464 | output_fp_move_double (rtx *operands) |
87ad11b0 | 2465 | { |
2466 | if (FP_REG_P (operands[0])) | |
2467 | { | |
6d36483b | 2468 | if (FP_REG_P (operands[1]) |
891b55b4 | 2469 | || operands[1] == CONST0_RTX (GET_MODE (operands[0]))) |
c6ae275c | 2470 | output_asm_insn ("fcpy,dbl %f1,%0", operands); |
6d36483b | 2471 | else |
27ef382d | 2472 | output_asm_insn ("fldd%F1 %1,%0", operands); |
87ad11b0 | 2473 | } |
2474 | else if (FP_REG_P (operands[1])) | |
2475 | { | |
27ef382d | 2476 | output_asm_insn ("fstd%F0 %1,%0", operands); |
87ad11b0 | 2477 | } |
ecf2283d | 2478 | else |
891b55b4 | 2479 | { |
ecf2283d | 2480 | rtx xoperands[2]; |
2481 | ||
2482 | gcc_assert (operands[1] == CONST0_RTX (GET_MODE (operands[0]))); | |
2483 | ||
6d36483b | 2484 | /* This is a pain. You have to be prepared to deal with an |
01cc3b75 | 2485 | arbitrary address here including pre/post increment/decrement. |
891b55b4 | 2486 | |
2487 | so avoid this in the MD. */ | |
ecf2283d | 2488 | gcc_assert (GET_CODE (operands[0]) == REG); |
2489 | ||
2490 | xoperands[1] = gen_rtx_REG (SImode, REGNO (operands[0]) + 1); | |
2491 | xoperands[0] = operands[0]; | |
2492 | output_asm_insn ("copy %%r0,%0\n\tcopy %%r0,%1", xoperands); | |
891b55b4 | 2493 | } |
87ad11b0 | 2494 | return ""; |
2495 | } | |
2496 | \f | |
2497 | /* Return a REG that occurs in ADDR with coefficient 1. | |
2498 | ADDR can be effectively incremented by incrementing REG. */ | |
2499 | ||
2500 | static rtx | |
5c1d8983 | 2501 | find_addr_reg (rtx addr) |
87ad11b0 | 2502 | { |
2503 | while (GET_CODE (addr) == PLUS) | |
2504 | { | |
2505 | if (GET_CODE (XEXP (addr, 0)) == REG) | |
2506 | addr = XEXP (addr, 0); | |
2507 | else if (GET_CODE (XEXP (addr, 1)) == REG) | |
2508 | addr = XEXP (addr, 1); | |
2509 | else if (CONSTANT_P (XEXP (addr, 0))) | |
2510 | addr = XEXP (addr, 1); | |
2511 | else if (CONSTANT_P (XEXP (addr, 1))) | |
2512 | addr = XEXP (addr, 0); | |
2513 | else | |
ecf2283d | 2514 | gcc_unreachable (); |
87ad11b0 | 2515 | } |
ecf2283d | 2516 | gcc_assert (GET_CODE (addr) == REG); |
2517 | return addr; | |
87ad11b0 | 2518 | } |
2519 | ||
87ad11b0 | 2520 | /* Emit code to perform a block move. |
2521 | ||
87ad11b0 | 2522 | OPERANDS[0] is the destination pointer as a REG, clobbered. |
2523 | OPERANDS[1] is the source pointer as a REG, clobbered. | |
42819d4e | 2524 | OPERANDS[2] is a register for temporary storage. |
87ad11b0 | 2525 | OPERANDS[3] is a register for temporary storage. |
a7e1bb24 | 2526 | OPERANDS[4] is the size as a CONST_INT |
9840d99d | 2527 | OPERANDS[5] is the alignment safe to use, as a CONST_INT. |
5aedf60c | 2528 | OPERANDS[6] is another temporary register. */ |
87ad11b0 | 2529 | |
611a88e1 | 2530 | const char * |
5c1d8983 | 2531 | output_block_move (rtx *operands, int size_is_constant ATTRIBUTE_UNUSED) |
87ad11b0 | 2532 | { |
2533 | int align = INTVAL (operands[5]); | |
42819d4e | 2534 | unsigned long n_bytes = INTVAL (operands[4]); |
87ad11b0 | 2535 | |
a7e1bb24 | 2536 | /* We can't move more than a word at a time because the PA |
87ad11b0 | 2537 | has no longer integer move insns. (Could use fp mem ops?) */ |
a7e1bb24 | 2538 | if (align > (TARGET_64BIT ? 8 : 4)) |
2539 | align = (TARGET_64BIT ? 8 : 4); | |
87ad11b0 | 2540 | |
42819d4e | 2541 | /* Note that we know each loop below will execute at least twice |
2542 | (else we would have open-coded the copy). */ | |
2543 | switch (align) | |
87ad11b0 | 2544 | { |
a7e1bb24 | 2545 | case 8: |
2546 | /* Pre-adjust the loop counter. */ | |
2547 | operands[4] = GEN_INT (n_bytes - 16); | |
2548 | output_asm_insn ("ldi %4,%2", operands); | |
2549 | ||
2550 | /* Copying loop. */ | |
2551 | output_asm_insn ("ldd,ma 8(%1),%3", operands); | |
2552 | output_asm_insn ("ldd,ma 8(%1),%6", operands); | |
2553 | output_asm_insn ("std,ma %3,8(%0)", operands); | |
2554 | output_asm_insn ("addib,>= -16,%2,.-12", operands); | |
2555 | output_asm_insn ("std,ma %6,8(%0)", operands); | |
2556 | ||
2557 | /* Handle the residual. There could be up to 7 bytes of | |
2558 | residual to copy! */ | |
2559 | if (n_bytes % 16 != 0) | |
2560 | { | |
2561 | operands[4] = GEN_INT (n_bytes % 8); | |
2562 | if (n_bytes % 16 >= 8) | |
2563 | output_asm_insn ("ldd,ma 8(%1),%3", operands); | |
2564 | if (n_bytes % 8 != 0) | |
2565 | output_asm_insn ("ldd 0(%1),%6", operands); | |
2566 | if (n_bytes % 16 >= 8) | |
2567 | output_asm_insn ("std,ma %3,8(%0)", operands); | |
2568 | if (n_bytes % 8 != 0) | |
2569 | output_asm_insn ("stdby,e %6,%4(%0)", operands); | |
2570 | } | |
2571 | return ""; | |
2572 | ||
42819d4e | 2573 | case 4: |
2574 | /* Pre-adjust the loop counter. */ | |
2575 | operands[4] = GEN_INT (n_bytes - 8); | |
2576 | output_asm_insn ("ldi %4,%2", operands); | |
2577 | ||
2578 | /* Copying loop. */ | |
e4065f95 | 2579 | output_asm_insn ("{ldws|ldw},ma 4(%1),%3", operands); |
2580 | output_asm_insn ("{ldws|ldw},ma 4(%1),%6", operands); | |
2581 | output_asm_insn ("{stws|stw},ma %3,4(%0)", operands); | |
42819d4e | 2582 | output_asm_insn ("addib,>= -8,%2,.-12", operands); |
e4065f95 | 2583 | output_asm_insn ("{stws|stw},ma %6,4(%0)", operands); |
42819d4e | 2584 | |
2585 | /* Handle the residual. There could be up to 7 bytes of | |
2586 | residual to copy! */ | |
2587 | if (n_bytes % 8 != 0) | |
2588 | { | |
2589 | operands[4] = GEN_INT (n_bytes % 4); | |
2590 | if (n_bytes % 8 >= 4) | |
e4065f95 | 2591 | output_asm_insn ("{ldws|ldw},ma 4(%1),%3", operands); |
42819d4e | 2592 | if (n_bytes % 4 != 0) |
34940871 | 2593 | output_asm_insn ("ldw 0(%1),%6", operands); |
42819d4e | 2594 | if (n_bytes % 8 >= 4) |
e4065f95 | 2595 | output_asm_insn ("{stws|stw},ma %3,4(%0)", operands); |
42819d4e | 2596 | if (n_bytes % 4 != 0) |
e4065f95 | 2597 | output_asm_insn ("{stbys|stby},e %6,%4(%0)", operands); |
42819d4e | 2598 | } |
2599 | return ""; | |
87ad11b0 | 2600 | |
42819d4e | 2601 | case 2: |
2602 | /* Pre-adjust the loop counter. */ | |
2603 | operands[4] = GEN_INT (n_bytes - 4); | |
2604 | output_asm_insn ("ldi %4,%2", operands); | |
87ad11b0 | 2605 | |
42819d4e | 2606 | /* Copying loop. */ |
e4065f95 | 2607 | output_asm_insn ("{ldhs|ldh},ma 2(%1),%3", operands); |
2608 | output_asm_insn ("{ldhs|ldh},ma 2(%1),%6", operands); | |
2609 | output_asm_insn ("{sths|sth},ma %3,2(%0)", operands); | |
42819d4e | 2610 | output_asm_insn ("addib,>= -4,%2,.-12", operands); |
e4065f95 | 2611 | output_asm_insn ("{sths|sth},ma %6,2(%0)", operands); |
87ad11b0 | 2612 | |
42819d4e | 2613 | /* Handle the residual. */ |
2614 | if (n_bytes % 4 != 0) | |
2615 | { | |
2616 | if (n_bytes % 4 >= 2) | |
e4065f95 | 2617 | output_asm_insn ("{ldhs|ldh},ma 2(%1),%3", operands); |
42819d4e | 2618 | if (n_bytes % 2 != 0) |
34940871 | 2619 | output_asm_insn ("ldb 0(%1),%6", operands); |
42819d4e | 2620 | if (n_bytes % 4 >= 2) |
e4065f95 | 2621 | output_asm_insn ("{sths|sth},ma %3,2(%0)", operands); |
42819d4e | 2622 | if (n_bytes % 2 != 0) |
34940871 | 2623 | output_asm_insn ("stb %6,0(%0)", operands); |
42819d4e | 2624 | } |
2625 | return ""; | |
87ad11b0 | 2626 | |
42819d4e | 2627 | case 1: |
2628 | /* Pre-adjust the loop counter. */ | |
2629 | operands[4] = GEN_INT (n_bytes - 2); | |
2630 | output_asm_insn ("ldi %4,%2", operands); | |
87ad11b0 | 2631 | |
42819d4e | 2632 | /* Copying loop. */ |
e4065f95 | 2633 | output_asm_insn ("{ldbs|ldb},ma 1(%1),%3", operands); |
2634 | output_asm_insn ("{ldbs|ldb},ma 1(%1),%6", operands); | |
2635 | output_asm_insn ("{stbs|stb},ma %3,1(%0)", operands); | |
42819d4e | 2636 | output_asm_insn ("addib,>= -2,%2,.-12", operands); |
e4065f95 | 2637 | output_asm_insn ("{stbs|stb},ma %6,1(%0)", operands); |
87ad11b0 | 2638 | |
42819d4e | 2639 | /* Handle the residual. */ |
2640 | if (n_bytes % 2 != 0) | |
2641 | { | |
34940871 | 2642 | output_asm_insn ("ldb 0(%1),%3", operands); |
2643 | output_asm_insn ("stb %3,0(%0)", operands); | |
42819d4e | 2644 | } |
2645 | return ""; | |
87ad11b0 | 2646 | |
42819d4e | 2647 | default: |
ecf2283d | 2648 | gcc_unreachable (); |
87ad11b0 | 2649 | } |
87ad11b0 | 2650 | } |
58e17b0b | 2651 | |
2652 | /* Count the number of insns necessary to handle this block move. | |
2653 | ||
2654 | Basic structure is the same as emit_block_move, except that we | |
2655 | count insns rather than emit them. */ | |
2656 | ||
611a88e1 | 2657 | static int |
008c057d | 2658 | compute_movmem_length (rtx insn) |
58e17b0b | 2659 | { |
2660 | rtx pat = PATTERN (insn); | |
fc1fb057 | 2661 | unsigned int align = INTVAL (XEXP (XVECEXP (pat, 0, 7), 0)); |
2662 | unsigned long n_bytes = INTVAL (XEXP (XVECEXP (pat, 0, 6), 0)); | |
42819d4e | 2663 | unsigned int n_insns = 0; |
58e17b0b | 2664 | |
2665 | /* We can't move more than four bytes at a time because the PA | |
2666 | has no longer integer move insns. (Could use fp mem ops?) */ | |
a7e1bb24 | 2667 | if (align > (TARGET_64BIT ? 8 : 4)) |
2668 | align = (TARGET_64BIT ? 8 : 4); | |
58e17b0b | 2669 | |
79bfe6ae | 2670 | /* The basic copying loop. */ |
42819d4e | 2671 | n_insns = 6; |
58e17b0b | 2672 | |
42819d4e | 2673 | /* Residuals. */ |
2674 | if (n_bytes % (2 * align) != 0) | |
58e17b0b | 2675 | { |
79bfe6ae | 2676 | if ((n_bytes % (2 * align)) >= align) |
2677 | n_insns += 2; | |
2678 | ||
2679 | if ((n_bytes % align) != 0) | |
2680 | n_insns += 2; | |
58e17b0b | 2681 | } |
42819d4e | 2682 | |
2683 | /* Lengths are expressed in bytes now; each insn is 4 bytes. */ | |
2684 | return n_insns * 4; | |
58e17b0b | 2685 | } |
a7e1bb24 | 2686 | |
2687 | /* Emit code to perform a block clear. | |
2688 | ||
2689 | OPERANDS[0] is the destination pointer as a REG, clobbered. | |
2690 | OPERANDS[1] is a register for temporary storage. | |
2691 | OPERANDS[2] is the size as a CONST_INT | |
2692 | OPERANDS[3] is the alignment safe to use, as a CONST_INT. */ | |
2693 | ||
2694 | const char * | |
2695 | output_block_clear (rtx *operands, int size_is_constant ATTRIBUTE_UNUSED) | |
2696 | { | |
2697 | int align = INTVAL (operands[3]); | |
2698 | unsigned long n_bytes = INTVAL (operands[2]); | |
2699 | ||
2700 | /* We can't clear more than a word at a time because the PA | |
2701 | has no longer integer move insns. */ | |
2702 | if (align > (TARGET_64BIT ? 8 : 4)) | |
2703 | align = (TARGET_64BIT ? 8 : 4); | |
2704 | ||
2705 | /* Note that we know each loop below will execute at least twice | |
2706 | (else we would have open-coded the copy). */ | |
2707 | switch (align) | |
2708 | { | |
2709 | case 8: | |
2710 | /* Pre-adjust the loop counter. */ | |
2711 | operands[2] = GEN_INT (n_bytes - 16); | |
2712 | output_asm_insn ("ldi %2,%1", operands); | |
2713 | ||
2714 | /* Loop. */ | |
2715 | output_asm_insn ("std,ma %%r0,8(%0)", operands); | |
2716 | output_asm_insn ("addib,>= -16,%1,.-4", operands); | |
2717 | output_asm_insn ("std,ma %%r0,8(%0)", operands); | |
2718 | ||
2719 | /* Handle the residual. There could be up to 7 bytes of | |
2720 | residual to copy! */ | |
2721 | if (n_bytes % 16 != 0) | |
2722 | { | |
2723 | operands[2] = GEN_INT (n_bytes % 8); | |
2724 | if (n_bytes % 16 >= 8) | |
2725 | output_asm_insn ("std,ma %%r0,8(%0)", operands); | |
2726 | if (n_bytes % 8 != 0) | |
2727 | output_asm_insn ("stdby,e %%r0,%2(%0)", operands); | |
2728 | } | |
2729 | return ""; | |
2730 | ||
2731 | case 4: | |
2732 | /* Pre-adjust the loop counter. */ | |
2733 | operands[2] = GEN_INT (n_bytes - 8); | |
2734 | output_asm_insn ("ldi %2,%1", operands); | |
2735 | ||
2736 | /* Loop. */ | |
2737 | output_asm_insn ("{stws|stw},ma %%r0,4(%0)", operands); | |
2738 | output_asm_insn ("addib,>= -8,%1,.-4", operands); | |
2739 | output_asm_insn ("{stws|stw},ma %%r0,4(%0)", operands); | |
2740 | ||
2741 | /* Handle the residual. There could be up to 7 bytes of | |
2742 | residual to copy! */ | |
2743 | if (n_bytes % 8 != 0) | |
2744 | { | |
2745 | operands[2] = GEN_INT (n_bytes % 4); | |
2746 | if (n_bytes % 8 >= 4) | |
2747 | output_asm_insn ("{stws|stw},ma %%r0,4(%0)", operands); | |
2748 | if (n_bytes % 4 != 0) | |
2749 | output_asm_insn ("{stbys|stby},e %%r0,%2(%0)", operands); | |
2750 | } | |
2751 | return ""; | |
2752 | ||
2753 | case 2: | |
2754 | /* Pre-adjust the loop counter. */ | |
2755 | operands[2] = GEN_INT (n_bytes - 4); | |
2756 | output_asm_insn ("ldi %2,%1", operands); | |
2757 | ||
2758 | /* Loop. */ | |
2759 | output_asm_insn ("{sths|sth},ma %%r0,2(%0)", operands); | |
2760 | output_asm_insn ("addib,>= -4,%1,.-4", operands); | |
2761 | output_asm_insn ("{sths|sth},ma %%r0,2(%0)", operands); | |
2762 | ||
2763 | /* Handle the residual. */ | |
2764 | if (n_bytes % 4 != 0) | |
2765 | { | |
2766 | if (n_bytes % 4 >= 2) | |
2767 | output_asm_insn ("{sths|sth},ma %%r0,2(%0)", operands); | |
2768 | if (n_bytes % 2 != 0) | |
2769 | output_asm_insn ("stb %%r0,0(%0)", operands); | |
2770 | } | |
2771 | return ""; | |
2772 | ||
2773 | case 1: | |
2774 | /* Pre-adjust the loop counter. */ | |
2775 | operands[2] = GEN_INT (n_bytes - 2); | |
2776 | output_asm_insn ("ldi %2,%1", operands); | |
2777 | ||
2778 | /* Loop. */ | |
2779 | output_asm_insn ("{stbs|stb},ma %%r0,1(%0)", operands); | |
2780 | output_asm_insn ("addib,>= -2,%1,.-4", operands); | |
2781 | output_asm_insn ("{stbs|stb},ma %%r0,1(%0)", operands); | |
2782 | ||
2783 | /* Handle the residual. */ | |
2784 | if (n_bytes % 2 != 0) | |
2785 | output_asm_insn ("stb %%r0,0(%0)", operands); | |
2786 | ||
2787 | return ""; | |
2788 | ||
2789 | default: | |
ecf2283d | 2790 | gcc_unreachable (); |
a7e1bb24 | 2791 | } |
2792 | } | |
2793 | ||
2794 | /* Count the number of insns necessary to handle this block move. | |
2795 | ||
2796 | Basic structure is the same as emit_block_move, except that we | |
2797 | count insns rather than emit them. */ | |
2798 | ||
2799 | static int | |
008c057d | 2800 | compute_clrmem_length (rtx insn) |
a7e1bb24 | 2801 | { |
2802 | rtx pat = PATTERN (insn); | |
2803 | unsigned int align = INTVAL (XEXP (XVECEXP (pat, 0, 4), 0)); | |
2804 | unsigned long n_bytes = INTVAL (XEXP (XVECEXP (pat, 0, 3), 0)); | |
2805 | unsigned int n_insns = 0; | |
2806 | ||
2807 | /* We can't clear more than a word at a time because the PA | |
2808 | has no longer integer move insns. */ | |
2809 | if (align > (TARGET_64BIT ? 8 : 4)) | |
2810 | align = (TARGET_64BIT ? 8 : 4); | |
2811 | ||
2812 | /* The basic loop. */ | |
2813 | n_insns = 4; | |
2814 | ||
2815 | /* Residuals. */ | |
2816 | if (n_bytes % (2 * align) != 0) | |
2817 | { | |
2818 | if ((n_bytes % (2 * align)) >= align) | |
2819 | n_insns++; | |
2820 | ||
2821 | if ((n_bytes % align) != 0) | |
2822 | n_insns++; | |
2823 | } | |
2824 | ||
2825 | /* Lengths are expressed in bytes now; each insn is 4 bytes. */ | |
2826 | return n_insns * 4; | |
2827 | } | |
87ad11b0 | 2828 | \f |
2829 | ||
611a88e1 | 2830 | const char * |
5c1d8983 | 2831 | output_and (rtx *operands) |
e057641f | 2832 | { |
d6f01525 | 2833 | if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) != 0) |
e057641f | 2834 | { |
3745c59b | 2835 | unsigned HOST_WIDE_INT mask = INTVAL (operands[2]); |
e057641f | 2836 | int ls0, ls1, ms0, p, len; |
2837 | ||
2838 | for (ls0 = 0; ls0 < 32; ls0++) | |
2839 | if ((mask & (1 << ls0)) == 0) | |
2840 | break; | |
2841 | ||
2842 | for (ls1 = ls0; ls1 < 32; ls1++) | |
2843 | if ((mask & (1 << ls1)) != 0) | |
2844 | break; | |
2845 | ||
2846 | for (ms0 = ls1; ms0 < 32; ms0++) | |
2847 | if ((mask & (1 << ms0)) == 0) | |
2848 | break; | |
2849 | ||
ecf2283d | 2850 | gcc_assert (ms0 == 32); |
e057641f | 2851 | |
2852 | if (ls1 == 32) | |
2853 | { | |
2854 | len = ls0; | |
2855 | ||
ecf2283d | 2856 | gcc_assert (len); |
e057641f | 2857 | |
ef618fe4 | 2858 | operands[2] = GEN_INT (len); |
e4065f95 | 2859 | return "{extru|extrw,u} %1,31,%2,%0"; |
e057641f | 2860 | } |
2861 | else | |
2862 | { | |
2863 | /* We could use this `depi' for the case above as well, but `depi' | |
2864 | requires one more register file access than an `extru'. */ | |
2865 | ||
2866 | p = 31 - ls0; | |
2867 | len = ls1 - ls0; | |
2868 | ||
ef618fe4 | 2869 | operands[2] = GEN_INT (p); |
2870 | operands[3] = GEN_INT (len); | |
e4065f95 | 2871 | return "{depi|depwi} 0,%2,%3,%0"; |
e057641f | 2872 | } |
2873 | } | |
2874 | else | |
2875 | return "and %1,%2,%0"; | |
2876 | } | |
2877 | ||
5e3c5739 | 2878 | /* Return a string to perform a bitwise-and of operands[1] with operands[2] |
2879 | storing the result in operands[0]. */ | |
9aadea62 | 2880 | const char * |
5c1d8983 | 2881 | output_64bit_and (rtx *operands) |
5e3c5739 | 2882 | { |
2883 | if (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) != 0) | |
2884 | { | |
2885 | unsigned HOST_WIDE_INT mask = INTVAL (operands[2]); | |
b7d86581 | 2886 | int ls0, ls1, ms0, p, len; |
5e3c5739 | 2887 | |
2888 | for (ls0 = 0; ls0 < HOST_BITS_PER_WIDE_INT; ls0++) | |
b7d86581 | 2889 | if ((mask & ((unsigned HOST_WIDE_INT) 1 << ls0)) == 0) |
5e3c5739 | 2890 | break; |
2891 | ||
2892 | for (ls1 = ls0; ls1 < HOST_BITS_PER_WIDE_INT; ls1++) | |
b7d86581 | 2893 | if ((mask & ((unsigned HOST_WIDE_INT) 1 << ls1)) != 0) |
5e3c5739 | 2894 | break; |
2895 | ||
2896 | for (ms0 = ls1; ms0 < HOST_BITS_PER_WIDE_INT; ms0++) | |
b7d86581 | 2897 | if ((mask & ((unsigned HOST_WIDE_INT) 1 << ms0)) == 0) |
5e3c5739 | 2898 | break; |
2899 | ||
ecf2283d | 2900 | gcc_assert (ms0 == HOST_BITS_PER_WIDE_INT); |
5e3c5739 | 2901 | |
2902 | if (ls1 == HOST_BITS_PER_WIDE_INT) | |
2903 | { | |
2904 | len = ls0; | |
2905 | ||
ecf2283d | 2906 | gcc_assert (len); |
5e3c5739 | 2907 | |
2908 | operands[2] = GEN_INT (len); | |
2909 | return "extrd,u %1,63,%2,%0"; | |
2910 | } | |
2911 | else | |
2912 | { | |
2913 | /* We could use this `depi' for the case above as well, but `depi' | |
2914 | requires one more register file access than an `extru'. */ | |
2915 | ||
2916 | p = 63 - ls0; | |
2917 | len = ls1 - ls0; | |
2918 | ||
2919 | operands[2] = GEN_INT (p); | |
2920 | operands[3] = GEN_INT (len); | |
2921 | return "depdi 0,%2,%3,%0"; | |
2922 | } | |
2923 | } | |
2924 | else | |
2925 | return "and %1,%2,%0"; | |
2926 | } | |
2927 | ||
611a88e1 | 2928 | const char * |
5c1d8983 | 2929 | output_ior (rtx *operands) |
e057641f | 2930 | { |
3745c59b | 2931 | unsigned HOST_WIDE_INT mask = INTVAL (operands[2]); |
57ed30e5 | 2932 | int bs0, bs1, p, len; |
6d36483b | 2933 | |
c9da5f4d | 2934 | if (INTVAL (operands[2]) == 0) |
2935 | return "copy %1,%0"; | |
e057641f | 2936 | |
c9da5f4d | 2937 | for (bs0 = 0; bs0 < 32; bs0++) |
2938 | if ((mask & (1 << bs0)) != 0) | |
2939 | break; | |
e057641f | 2940 | |
c9da5f4d | 2941 | for (bs1 = bs0; bs1 < 32; bs1++) |
2942 | if ((mask & (1 << bs1)) == 0) | |
2943 | break; | |
e057641f | 2944 | |
ecf2283d | 2945 | gcc_assert (bs1 == 32 || ((unsigned HOST_WIDE_INT) 1 << bs1) > mask); |
e057641f | 2946 | |
c9da5f4d | 2947 | p = 31 - bs0; |
2948 | len = bs1 - bs0; | |
e057641f | 2949 | |
ef618fe4 | 2950 | operands[2] = GEN_INT (p); |
2951 | operands[3] = GEN_INT (len); | |
e4065f95 | 2952 | return "{depi|depwi} -1,%2,%3,%0"; |
e057641f | 2953 | } |
5e3c5739 | 2954 | |
2955 | /* Return a string to perform a bitwise-and of operands[1] with operands[2] | |
2956 | storing the result in operands[0]. */ | |
9aadea62 | 2957 | const char * |
5c1d8983 | 2958 | output_64bit_ior (rtx *operands) |
5e3c5739 | 2959 | { |
2960 | unsigned HOST_WIDE_INT mask = INTVAL (operands[2]); | |
b7d86581 | 2961 | int bs0, bs1, p, len; |
5e3c5739 | 2962 | |
2963 | if (INTVAL (operands[2]) == 0) | |
2964 | return "copy %1,%0"; | |
2965 | ||
2966 | for (bs0 = 0; bs0 < HOST_BITS_PER_WIDE_INT; bs0++) | |
b7d86581 | 2967 | if ((mask & ((unsigned HOST_WIDE_INT) 1 << bs0)) != 0) |
5e3c5739 | 2968 | break; |
2969 | ||
2970 | for (bs1 = bs0; bs1 < HOST_BITS_PER_WIDE_INT; bs1++) | |
b7d86581 | 2971 | if ((mask & ((unsigned HOST_WIDE_INT) 1 << bs1)) == 0) |
5e3c5739 | 2972 | break; |
2973 | ||
ecf2283d | 2974 | gcc_assert (bs1 == HOST_BITS_PER_WIDE_INT |
2975 | || ((unsigned HOST_WIDE_INT) 1 << bs1) > mask); | |
5e3c5739 | 2976 | |
2977 | p = 63 - bs0; | |
2978 | len = bs1 - bs0; | |
2979 | ||
2980 | operands[2] = GEN_INT (p); | |
2981 | operands[3] = GEN_INT (len); | |
2982 | return "depdi -1,%2,%3,%0"; | |
2983 | } | |
e057641f | 2984 | \f |
58356836 | 2985 | /* Target hook for assembling integer objects. This code handles |
e678758c | 2986 | aligned SI and DI integers specially since function references |
2987 | must be preceded by P%. */ | |
58356836 | 2988 | |
2989 | static bool | |
5c1d8983 | 2990 | pa_assemble_integer (rtx x, unsigned int size, int aligned_p) |
58356836 | 2991 | { |
e678758c | 2992 | if (size == UNITS_PER_WORD |
2993 | && aligned_p | |
58356836 | 2994 | && function_label_operand (x, VOIDmode)) |
2995 | { | |
2996 | fputs (size == 8? "\t.dword\tP%" : "\t.word\tP%", asm_out_file); | |
2997 | output_addr_const (asm_out_file, x); | |
2998 | fputc ('\n', asm_out_file); | |
2999 | return true; | |
3000 | } | |
3001 | return default_assemble_integer (x, size, aligned_p); | |
3002 | } | |
3003 | \f | |
87ad11b0 | 3004 | /* Output an ascii string. */ |
57ed30e5 | 3005 | void |
5c1d8983 | 3006 | output_ascii (FILE *file, const char *p, int size) |
87ad11b0 | 3007 | { |
3008 | int i; | |
3009 | int chars_output; | |
5aedf60c | 3010 | unsigned char partial_output[16]; /* Max space 4 chars can occupy. */ |
87ad11b0 | 3011 | |
3012 | /* The HP assembler can only take strings of 256 characters at one | |
3013 | time. This is a limitation on input line length, *not* the | |
3014 | length of the string. Sigh. Even worse, it seems that the | |
3015 | restriction is in number of input characters (see \xnn & | |
3016 | \whatever). So we have to do this very carefully. */ | |
3017 | ||
9c0ac0fd | 3018 | fputs ("\t.STRING \"", file); |
87ad11b0 | 3019 | |
3020 | chars_output = 0; | |
3021 | for (i = 0; i < size; i += 4) | |
3022 | { | |
3023 | int co = 0; | |
3024 | int io = 0; | |
3025 | for (io = 0, co = 0; io < MIN (4, size - i); io++) | |
3026 | { | |
bf8aac3e | 3027 | register unsigned int c = (unsigned char) p[i + io]; |
87ad11b0 | 3028 | |
3029 | if (c == '\"' || c == '\\') | |
3030 | partial_output[co++] = '\\'; | |
3031 | if (c >= ' ' && c < 0177) | |
3032 | partial_output[co++] = c; | |
3033 | else | |
3034 | { | |
3035 | unsigned int hexd; | |
3036 | partial_output[co++] = '\\'; | |
3037 | partial_output[co++] = 'x'; | |
3038 | hexd = c / 16 - 0 + '0'; | |
3039 | if (hexd > '9') | |
3040 | hexd -= '9' - 'a' + 1; | |
3041 | partial_output[co++] = hexd; | |
3042 | hexd = c % 16 - 0 + '0'; | |
3043 | if (hexd > '9') | |
3044 | hexd -= '9' - 'a' + 1; | |
3045 | partial_output[co++] = hexd; | |
3046 | } | |
3047 | } | |
3048 | if (chars_output + co > 243) | |
3049 | { | |
9c0ac0fd | 3050 | fputs ("\"\n\t.STRING \"", file); |
87ad11b0 | 3051 | chars_output = 0; |
3052 | } | |
a584fe8a | 3053 | fwrite (partial_output, 1, (size_t) co, file); |
87ad11b0 | 3054 | chars_output += co; |
3055 | co = 0; | |
3056 | } | |
9c0ac0fd | 3057 | fputs ("\"\n", file); |
87ad11b0 | 3058 | } |
c533da59 | 3059 | |
3060 | /* Try to rewrite floating point comparisons & branches to avoid | |
3061 | useless add,tr insns. | |
3062 | ||
3063 | CHECK_NOTES is nonzero if we should examine REG_DEAD notes | |
3064 | to see if FPCC is dead. CHECK_NOTES is nonzero for the | |
3065 | first attempt to remove useless add,tr insns. It is zero | |
3066 | for the second pass as reorg sometimes leaves bogus REG_DEAD | |
3067 | notes lying around. | |
3068 | ||
3069 | When CHECK_NOTES is zero we can only eliminate add,tr insns | |
3070 | when there's a 1:1 correspondence between fcmp and ftest/fbranch | |
3071 | instructions. */ | |
611a88e1 | 3072 | static void |
5c1d8983 | 3073 | remove_useless_addtr_insns (int check_notes) |
c533da59 | 3074 | { |
3075 | rtx insn; | |
c533da59 | 3076 | static int pass = 0; |
3077 | ||
3078 | /* This is fairly cheap, so always run it when optimizing. */ | |
3079 | if (optimize > 0) | |
3080 | { | |
3081 | int fcmp_count = 0; | |
3082 | int fbranch_count = 0; | |
3083 | ||
3084 | /* Walk all the insns in this function looking for fcmp & fbranch | |
3085 | instructions. Keep track of how many of each we find. */ | |
2efea8c0 | 3086 | for (insn = get_insns (); insn; insn = next_insn (insn)) |
c533da59 | 3087 | { |
3088 | rtx tmp; | |
3089 | ||
3090 | /* Ignore anything that isn't an INSN or a JUMP_INSN. */ | |
3091 | if (GET_CODE (insn) != INSN && GET_CODE (insn) != JUMP_INSN) | |
3092 | continue; | |
3093 | ||
3094 | tmp = PATTERN (insn); | |
3095 | ||
3096 | /* It must be a set. */ | |
3097 | if (GET_CODE (tmp) != SET) | |
3098 | continue; | |
3099 | ||
3100 | /* If the destination is CCFP, then we've found an fcmp insn. */ | |
3101 | tmp = SET_DEST (tmp); | |
3102 | if (GET_CODE (tmp) == REG && REGNO (tmp) == 0) | |
3103 | { | |
3104 | fcmp_count++; | |
3105 | continue; | |
3106 | } | |
9840d99d | 3107 | |
c533da59 | 3108 | tmp = PATTERN (insn); |
3109 | /* If this is an fbranch instruction, bump the fbranch counter. */ | |
3110 | if (GET_CODE (tmp) == SET | |
3111 | && SET_DEST (tmp) == pc_rtx | |
3112 | && GET_CODE (SET_SRC (tmp)) == IF_THEN_ELSE | |
3113 | && GET_CODE (XEXP (SET_SRC (tmp), 0)) == NE | |
3114 | && GET_CODE (XEXP (XEXP (SET_SRC (tmp), 0), 0)) == REG | |
3115 | && REGNO (XEXP (XEXP (SET_SRC (tmp), 0), 0)) == 0) | |
3116 | { | |
3117 | fbranch_count++; | |
3118 | continue; | |
3119 | } | |
3120 | } | |
3121 | ||
3122 | ||
3123 | /* Find all floating point compare + branch insns. If possible, | |
3124 | reverse the comparison & the branch to avoid add,tr insns. */ | |
2efea8c0 | 3125 | for (insn = get_insns (); insn; insn = next_insn (insn)) |
c533da59 | 3126 | { |
3127 | rtx tmp, next; | |
3128 | ||
3129 | /* Ignore anything that isn't an INSN. */ | |
3130 | if (GET_CODE (insn) != INSN) | |
3131 | continue; | |
3132 | ||
3133 | tmp = PATTERN (insn); | |
3134 | ||
3135 | /* It must be a set. */ | |
3136 | if (GET_CODE (tmp) != SET) | |
3137 | continue; | |
3138 | ||
3139 | /* The destination must be CCFP, which is register zero. */ | |
3140 | tmp = SET_DEST (tmp); | |
3141 | if (GET_CODE (tmp) != REG || REGNO (tmp) != 0) | |
3142 | continue; | |
3143 | ||
3144 | /* INSN should be a set of CCFP. | |
3145 | ||
3146 | See if the result of this insn is used in a reversed FP | |
3147 | conditional branch. If so, reverse our condition and | |
3148 | the branch. Doing so avoids useless add,tr insns. */ | |
3149 | next = next_insn (insn); | |
3150 | while (next) | |
3151 | { | |
3152 | /* Jumps, calls and labels stop our search. */ | |
3153 | if (GET_CODE (next) == JUMP_INSN | |
3154 | || GET_CODE (next) == CALL_INSN | |
3155 | || GET_CODE (next) == CODE_LABEL) | |
3156 | break; | |
3157 | ||
3158 | /* As does another fcmp insn. */ | |
3159 | if (GET_CODE (next) == INSN | |
3160 | && GET_CODE (PATTERN (next)) == SET | |
3161 | && GET_CODE (SET_DEST (PATTERN (next))) == REG | |
3162 | && REGNO (SET_DEST (PATTERN (next))) == 0) | |
3163 | break; | |
3164 | ||
3165 | next = next_insn (next); | |
3166 | } | |
3167 | ||
3168 | /* Is NEXT_INSN a branch? */ | |
3169 | if (next | |
3170 | && GET_CODE (next) == JUMP_INSN) | |
3171 | { | |
3172 | rtx pattern = PATTERN (next); | |
3173 | ||
a361b456 | 3174 | /* If it a reversed fp conditional branch (e.g. uses add,tr) |
c533da59 | 3175 | and CCFP dies, then reverse our conditional and the branch |
3176 | to avoid the add,tr. */ | |
3177 | if (GET_CODE (pattern) == SET | |
3178 | && SET_DEST (pattern) == pc_rtx | |
3179 | && GET_CODE (SET_SRC (pattern)) == IF_THEN_ELSE | |
3180 | && GET_CODE (XEXP (SET_SRC (pattern), 0)) == NE | |
3181 | && GET_CODE (XEXP (XEXP (SET_SRC (pattern), 0), 0)) == REG | |
3182 | && REGNO (XEXP (XEXP (SET_SRC (pattern), 0), 0)) == 0 | |
3183 | && GET_CODE (XEXP (SET_SRC (pattern), 1)) == PC | |
3184 | && (fcmp_count == fbranch_count | |
3185 | || (check_notes | |
3186 | && find_regno_note (next, REG_DEAD, 0)))) | |
3187 | { | |
3188 | /* Reverse the branch. */ | |
3189 | tmp = XEXP (SET_SRC (pattern), 1); | |
3190 | XEXP (SET_SRC (pattern), 1) = XEXP (SET_SRC (pattern), 2); | |
3191 | XEXP (SET_SRC (pattern), 2) = tmp; | |
3192 | INSN_CODE (next) = -1; | |
3193 | ||
3194 | /* Reverse our condition. */ | |
3195 | tmp = PATTERN (insn); | |
3196 | PUT_CODE (XEXP (tmp, 1), | |
ea52c577 | 3197 | (reverse_condition_maybe_unordered |
3198 | (GET_CODE (XEXP (tmp, 1))))); | |
c533da59 | 3199 | } |
3200 | } | |
3201 | } | |
3202 | } | |
3203 | ||
3204 | pass = !pass; | |
3205 | ||
3206 | } | |
87ad11b0 | 3207 | \f |
ea52c577 | 3208 | /* You may have trouble believing this, but this is the 32 bit HP-PA |
3209 | stack layout. Wow. | |
87ad11b0 | 3210 | |
3211 | Offset Contents | |
3212 | ||
3213 | Variable arguments (optional; any number may be allocated) | |
3214 | ||
3215 | SP-(4*(N+9)) arg word N | |
3216 | : : | |
3217 | SP-56 arg word 5 | |
3218 | SP-52 arg word 4 | |
3219 | ||
3220 | Fixed arguments (must be allocated; may remain unused) | |
3221 | ||
3222 | SP-48 arg word 3 | |
3223 | SP-44 arg word 2 | |
3224 | SP-40 arg word 1 | |
3225 | SP-36 arg word 0 | |
3226 | ||
3227 | Frame Marker | |
3228 | ||
3229 | SP-32 External Data Pointer (DP) | |
3230 | SP-28 External sr4 | |
3231 | SP-24 External/stub RP (RP') | |
3232 | SP-20 Current RP | |
3233 | SP-16 Static Link | |
3234 | SP-12 Clean up | |
3235 | SP-8 Calling Stub RP (RP'') | |
3236 | SP-4 Previous SP | |
3237 | ||
3238 | Top of Frame | |
3239 | ||
3240 | SP-0 Stack Pointer (points to next available address) | |
3241 | ||
3242 | */ | |
3243 | ||
3244 | /* This function saves registers as follows. Registers marked with ' are | |
3245 | this function's registers (as opposed to the previous function's). | |
3246 | If a frame_pointer isn't needed, r4 is saved as a general register; | |
3247 | the space for the frame pointer is still allocated, though, to keep | |
3248 | things simple. | |
3249 | ||
3250 | ||
3251 | Top of Frame | |
3252 | ||
3253 | SP (FP') Previous FP | |
3254 | SP + 4 Alignment filler (sigh) | |
3255 | SP + 8 Space for locals reserved here. | |
3256 | . | |
3257 | . | |
3258 | . | |
3259 | SP + n All call saved register used. | |
3260 | . | |
3261 | . | |
3262 | . | |
3263 | SP + o All call saved fp registers used. | |
3264 | . | |
3265 | . | |
3266 | . | |
3267 | SP + p (SP') points to next available address. | |
6d36483b | 3268 | |
87ad11b0 | 3269 | */ |
3270 | ||
17d9b0c3 | 3271 | /* Global variables set by output_function_prologue(). */ |
cc858176 | 3272 | /* Size of frame. Need to know this to emit return insns from |
3273 | leaf procedures. */ | |
6bcdc1fb | 3274 | static HOST_WIDE_INT actual_fsize, local_fsize; |
3275 | static int save_fregs; | |
cc858176 | 3276 | |
daee63dd | 3277 | /* Emit RTL to store REG at the memory location specified by BASE+DISP. |
359a0be8 | 3278 | Handle case where DISP > 8k by using the add_high_const patterns. |
daee63dd | 3279 | |
3280 | Note in DISP > 8k case, we will leave the high part of the address | |
3281 | in %r1. There is code in expand_hppa_{prologue,epilogue} that knows this.*/ | |
7014838c | 3282 | |
6a2c16d6 | 3283 | static void |
6bcdc1fb | 3284 | store_reg (int reg, HOST_WIDE_INT disp, int base) |
87ad11b0 | 3285 | { |
6a2c16d6 | 3286 | rtx insn, dest, src, basereg; |
cc858176 | 3287 | |
3288 | src = gen_rtx_REG (word_mode, reg); | |
3289 | basereg = gen_rtx_REG (Pmode, base); | |
87ad11b0 | 3290 | if (VAL_14_BITS_P (disp)) |
daee63dd | 3291 | { |
cc858176 | 3292 | dest = gen_rtx_MEM (word_mode, plus_constant (basereg, disp)); |
6a2c16d6 | 3293 | insn = emit_move_insn (dest, src); |
daee63dd | 3294 | } |
6bcdc1fb | 3295 | else if (TARGET_64BIT && !VAL_32_BITS_P (disp)) |
3296 | { | |
3297 | rtx delta = GEN_INT (disp); | |
3298 | rtx tmpreg = gen_rtx_REG (Pmode, 1); | |
3299 | ||
3300 | emit_move_insn (tmpreg, delta); | |
5ecfd087 | 3301 | insn = emit_move_insn (tmpreg, gen_rtx_PLUS (Pmode, tmpreg, basereg)); |
6bcdc1fb | 3302 | if (DO_FRAME_NOTES) |
3303 | { | |
3304 | REG_NOTES (insn) | |
3305 | = gen_rtx_EXPR_LIST (REG_FRAME_RELATED_EXPR, | |
5ecfd087 | 3306 | gen_rtx_SET (VOIDmode, tmpreg, |
3307 | gen_rtx_PLUS (Pmode, basereg, delta)), | |
6bcdc1fb | 3308 | REG_NOTES (insn)); |
5ecfd087 | 3309 | RTX_FRAME_RELATED_P (insn) = 1; |
6bcdc1fb | 3310 | } |
5ecfd087 | 3311 | dest = gen_rtx_MEM (word_mode, tmpreg); |
3312 | insn = emit_move_insn (dest, src); | |
6bcdc1fb | 3313 | } |
daee63dd | 3314 | else |
3315 | { | |
cc858176 | 3316 | rtx delta = GEN_INT (disp); |
3317 | rtx high = gen_rtx_PLUS (Pmode, basereg, gen_rtx_HIGH (Pmode, delta)); | |
3318 | rtx tmpreg = gen_rtx_REG (Pmode, 1); | |
6bcdc1fb | 3319 | |
cc858176 | 3320 | emit_move_insn (tmpreg, high); |
3321 | dest = gen_rtx_MEM (word_mode, gen_rtx_LO_SUM (Pmode, tmpreg, delta)); | |
6a2c16d6 | 3322 | insn = emit_move_insn (dest, src); |
3323 | if (DO_FRAME_NOTES) | |
3324 | { | |
3325 | REG_NOTES (insn) | |
3326 | = gen_rtx_EXPR_LIST (REG_FRAME_RELATED_EXPR, | |
3327 | gen_rtx_SET (VOIDmode, | |
3328 | gen_rtx_MEM (word_mode, | |
3329 | gen_rtx_PLUS (word_mode, basereg, | |
3330 | delta)), | |
3331 | src), | |
3332 | REG_NOTES (insn)); | |
3333 | } | |
daee63dd | 3334 | } |
6a2c16d6 | 3335 | |
3336 | if (DO_FRAME_NOTES) | |
3337 | RTX_FRAME_RELATED_P (insn) = 1; | |
daee63dd | 3338 | } |
3339 | ||
a584fe8a | 3340 | /* Emit RTL to store REG at the memory location specified by BASE and then |
3341 | add MOD to BASE. MOD must be <= 8k. */ | |
daee63dd | 3342 | |
a584fe8a | 3343 | static void |
6bcdc1fb | 3344 | store_reg_modify (int base, int reg, HOST_WIDE_INT mod) |
a584fe8a | 3345 | { |
3346 | rtx insn, basereg, srcreg, delta; | |
3347 | ||
ecf2283d | 3348 | gcc_assert (VAL_14_BITS_P (mod)); |
a584fe8a | 3349 | |
3350 | basereg = gen_rtx_REG (Pmode, base); | |
3351 | srcreg = gen_rtx_REG (word_mode, reg); | |
3352 | delta = GEN_INT (mod); | |
3353 | ||
3354 | insn = emit_insn (gen_post_store (basereg, srcreg, delta)); | |
3355 | if (DO_FRAME_NOTES) | |
3356 | { | |
3357 | RTX_FRAME_RELATED_P (insn) = 1; | |
3358 | ||
3359 | /* RTX_FRAME_RELATED_P must be set on each frame related set | |
dc873350 | 3360 | in a parallel with more than one element. */ |
3361 | RTX_FRAME_RELATED_P (XVECEXP (PATTERN (insn), 0, 0)) = 1; | |
3362 | RTX_FRAME_RELATED_P (XVECEXP (PATTERN (insn), 0, 1)) = 1; | |
a584fe8a | 3363 | } |
3364 | } | |
3365 | ||
3366 | /* Emit RTL to set REG to the value specified by BASE+DISP. Handle case | |
3367 | where DISP > 8k by using the add_high_const patterns. NOTE indicates | |
3368 | whether to add a frame note or not. | |
3369 | ||
3370 | In the DISP > 8k case, we leave the high part of the address in %r1. | |
3371 | There is code in expand_hppa_{prologue,epilogue} that knows about this. */ | |
7014838c | 3372 | |
6a2c16d6 | 3373 | static void |
6bcdc1fb | 3374 | set_reg_plus_d (int reg, int base, HOST_WIDE_INT disp, int note) |
87ad11b0 | 3375 | { |
6a2c16d6 | 3376 | rtx insn; |
cc858176 | 3377 | |
87ad11b0 | 3378 | if (VAL_14_BITS_P (disp)) |
cc858176 | 3379 | { |
6a2c16d6 | 3380 | insn = emit_move_insn (gen_rtx_REG (Pmode, reg), |
3381 | plus_constant (gen_rtx_REG (Pmode, base), disp)); | |
cc858176 | 3382 | } |
6bcdc1fb | 3383 | else if (TARGET_64BIT && !VAL_32_BITS_P (disp)) |
3384 | { | |
3385 | rtx basereg = gen_rtx_REG (Pmode, base); | |
3386 | rtx delta = GEN_INT (disp); | |
3387 | rtx tmpreg = gen_rtx_REG (Pmode, 1); | |
3388 | ||
3389 | emit_move_insn (tmpreg, delta); | |
3390 | insn = emit_move_insn (gen_rtx_REG (Pmode, reg), | |
3391 | gen_rtx_PLUS (Pmode, tmpreg, basereg)); | |
5ecfd087 | 3392 | if (DO_FRAME_NOTES) |
3393 | REG_NOTES (insn) | |
3394 | = gen_rtx_EXPR_LIST (REG_FRAME_RELATED_EXPR, | |
3395 | gen_rtx_SET (VOIDmode, tmpreg, | |
3396 | gen_rtx_PLUS (Pmode, basereg, delta)), | |
3397 | REG_NOTES (insn)); | |
6bcdc1fb | 3398 | } |
87ad11b0 | 3399 | else |
daee63dd | 3400 | { |
6a2c16d6 | 3401 | rtx basereg = gen_rtx_REG (Pmode, base); |
cc858176 | 3402 | rtx delta = GEN_INT (disp); |
6bcdc1fb | 3403 | rtx tmpreg = gen_rtx_REG (Pmode, 1); |
6a2c16d6 | 3404 | |
6bcdc1fb | 3405 | emit_move_insn (tmpreg, |
6a2c16d6 | 3406 | gen_rtx_PLUS (Pmode, basereg, |
cc858176 | 3407 | gen_rtx_HIGH (Pmode, delta))); |
6a2c16d6 | 3408 | insn = emit_move_insn (gen_rtx_REG (Pmode, reg), |
6bcdc1fb | 3409 | gen_rtx_LO_SUM (Pmode, tmpreg, delta)); |
daee63dd | 3410 | } |
6a2c16d6 | 3411 | |
a584fe8a | 3412 | if (DO_FRAME_NOTES && note) |
6a2c16d6 | 3413 | RTX_FRAME_RELATED_P (insn) = 1; |
87ad11b0 | 3414 | } |
3415 | ||
6bcdc1fb | 3416 | HOST_WIDE_INT |
3417 | compute_frame_size (HOST_WIDE_INT size, int *fregs_live) | |
87ad11b0 | 3418 | { |
256f9b65 | 3419 | int freg_saved = 0; |
3420 | int i, j; | |
3421 | ||
3422 | /* The code in hppa_expand_prologue and hppa_expand_epilogue must | |
3423 | be consistent with the rounding and size calculation done here. | |
3424 | Change them at the same time. */ | |
3425 | ||
3426 | /* We do our own stack alignment. First, round the size of the | |
3427 | stack locals up to a word boundary. */ | |
3428 | size = (size + UNITS_PER_WORD - 1) & ~(UNITS_PER_WORD - 1); | |
3429 | ||
3430 | /* Space for previous frame pointer + filler. If any frame is | |
3431 | allocated, we need to add in the STARTING_FRAME_OFFSET. We | |
3432 | waste some space here for the sake of HP compatibility. The | |
3433 | first slot is only used when the frame pointer is needed. */ | |
3434 | if (size || frame_pointer_needed) | |
3435 | size += STARTING_FRAME_OFFSET; | |
3436 | ||
a584fe8a | 3437 | /* If the current function calls __builtin_eh_return, then we need |
3438 | to allocate stack space for registers that will hold data for | |
3439 | the exception handler. */ | |
3440 | if (DO_FRAME_NOTES && current_function_calls_eh_return) | |
3441 | { | |
3442 | unsigned int i; | |
3443 | ||
3444 | for (i = 0; EH_RETURN_DATA_REGNO (i) != INVALID_REGNUM; ++i) | |
3445 | continue; | |
256f9b65 | 3446 | size += i * UNITS_PER_WORD; |
a584fe8a | 3447 | } |
3448 | ||
3a51bad9 | 3449 | /* Account for space used by the callee general register saves. */ |
256f9b65 | 3450 | for (i = 18, j = frame_pointer_needed ? 4 : 3; i >= j; i--) |
7f7c4869 | 3451 | if (regs_ever_live[i]) |
256f9b65 | 3452 | size += UNITS_PER_WORD; |
df0651dc | 3453 | |
3a51bad9 | 3454 | /* Account for space used by the callee floating point register saves. */ |
bac38c40 | 3455 | for (i = FP_SAVED_REG_LAST; i >= FP_SAVED_REG_FIRST; i -= FP_REG_STEP) |
5e3c5739 | 3456 | if (regs_ever_live[i] |
256f9b65 | 3457 | || (!TARGET_64BIT && regs_ever_live[i + 1])) |
df0651dc | 3458 | { |
256f9b65 | 3459 | freg_saved = 1; |
002fc5f7 | 3460 | |
3a51bad9 | 3461 | /* We always save both halves of the FP register, so always |
3462 | increment the frame size by 8 bytes. */ | |
256f9b65 | 3463 | size += 8; |
df0651dc | 3464 | } |
3465 | ||
256f9b65 | 3466 | /* If any of the floating registers are saved, account for the |
3467 | alignment needed for the floating point register save block. */ | |
3468 | if (freg_saved) | |
3469 | { | |
3470 | size = (size + 7) & ~7; | |
3471 | if (fregs_live) | |
3472 | *fregs_live = 1; | |
3473 | } | |
3474 | ||
3a51bad9 | 3475 | /* The various ABIs include space for the outgoing parameters in the |
256f9b65 | 3476 | size of the current function's stack frame. We don't need to align |
3477 | for the outgoing arguments as their alignment is set by the final | |
3478 | rounding for the frame as a whole. */ | |
3479 | size += current_function_outgoing_args_size; | |
3a51bad9 | 3480 | |
3481 | /* Allocate space for the fixed frame marker. This space must be | |
e9ec370e | 3482 | allocated for any function that makes calls or allocates |
3a51bad9 | 3483 | stack space. */ |
256f9b65 | 3484 | if (!current_function_is_leaf || size) |
e9ec370e | 3485 | size += TARGET_64BIT ? 48 : 32; |
5e3c5739 | 3486 | |
256f9b65 | 3487 | /* Finally, round to the preferred stack boundary. */ |
2247cc5f | 3488 | return ((size + PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT - 1) |
3489 | & ~(PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT - 1)); | |
87ad11b0 | 3490 | } |
6d36483b | 3491 | |
17d9b0c3 | 3492 | /* Generate the assembly code for function entry. FILE is a stdio |
3493 | stream to output the code to. SIZE is an int: how many units of | |
3494 | temporary storage to allocate. | |
3495 | ||
3496 | Refer to the array `regs_ever_live' to determine which registers to | |
3497 | save; `regs_ever_live[I]' is nonzero if register number I is ever | |
3498 | used in the function. This function is responsible for knowing | |
3499 | which registers should not be saved even if used. */ | |
3500 | ||
3501 | /* On HP-PA, move-double insns between fpu and cpu need an 8-byte block | |
3502 | of memory. If any fpu reg is used in the function, we allocate | |
3503 | such a block here, at the bottom of the frame, just in case it's needed. | |
3504 | ||
3505 | If this function is a leaf procedure, then we may choose not | |
3506 | to do a "save" insn. The decision about whether or not | |
3507 | to do this is made in regclass.c. */ | |
3508 | ||
6988553d | 3509 | static void |
5c1d8983 | 3510 | pa_output_function_prologue (FILE *file, HOST_WIDE_INT size ATTRIBUTE_UNUSED) |
87ad11b0 | 3511 | { |
d151162a | 3512 | /* The function's label and associated .PROC must never be |
3513 | separated and must be output *after* any profiling declarations | |
3514 | to avoid changing spaces/subspaces within a procedure. */ | |
3515 | ASM_OUTPUT_LABEL (file, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); | |
3516 | fputs ("\t.PROC\n", file); | |
3517 | ||
daee63dd | 3518 | /* hppa_expand_prologue does the dirty work now. We just need |
3519 | to output the assembler directives which denote the start | |
3520 | of a function. */ | |
6bcdc1fb | 3521 | fprintf (file, "\t.CALLINFO FRAME=" HOST_WIDE_INT_PRINT_DEC, actual_fsize); |
df6edefa | 3522 | if (regs_ever_live[2]) |
9c0ac0fd | 3523 | fputs (",CALLS,SAVE_RP", file); |
daee63dd | 3524 | else |
9c0ac0fd | 3525 | fputs (",NO_CALLS", file); |
f3ba7709 | 3526 | |
e9ec370e | 3527 | /* The SAVE_SP flag is used to indicate that register %r3 is stored |
3528 | at the beginning of the frame and that it is used as the frame | |
3529 | pointer for the frame. We do this because our current frame | |
3ce7ff97 | 3530 | layout doesn't conform to that specified in the HP runtime |
e9ec370e | 3531 | documentation and we need a way to indicate to programs such as |
3532 | GDB where %r3 is saved. The SAVE_SP flag was chosen because it | |
3533 | isn't used by HP compilers but is supported by the assembler. | |
3534 | However, SAVE_SP is supposed to indicate that the previous stack | |
3535 | pointer has been saved in the frame marker. */ | |
f3ba7709 | 3536 | if (frame_pointer_needed) |
9c0ac0fd | 3537 | fputs (",SAVE_SP", file); |
f3ba7709 | 3538 | |
a9960cdc | 3539 | /* Pass on information about the number of callee register saves |
9b0c95be | 3540 | performed in the prologue. |
3541 | ||
3542 | The compiler is supposed to pass the highest register number | |
6d36483b | 3543 | saved, the assembler then has to adjust that number before |
9b0c95be | 3544 | entering it into the unwind descriptor (to account for any |
6d36483b | 3545 | caller saved registers with lower register numbers than the |
9b0c95be | 3546 | first callee saved register). */ |
3547 | if (gr_saved) | |
3548 | fprintf (file, ",ENTRY_GR=%d", gr_saved + 2); | |
3549 | ||
3550 | if (fr_saved) | |
3551 | fprintf (file, ",ENTRY_FR=%d", fr_saved + 11); | |
a9960cdc | 3552 | |
9c0ac0fd | 3553 | fputs ("\n\t.ENTRY\n", file); |
daee63dd | 3554 | |
2efea8c0 | 3555 | remove_useless_addtr_insns (0); |
daee63dd | 3556 | } |
3557 | ||
57ed30e5 | 3558 | void |
5c1d8983 | 3559 | hppa_expand_prologue (void) |
daee63dd | 3560 | { |
afd7b680 | 3561 | int merge_sp_adjust_with_store = 0; |
6bcdc1fb | 3562 | HOST_WIDE_INT size = get_frame_size (); |
3563 | HOST_WIDE_INT offset; | |
3564 | int i; | |
a584fe8a | 3565 | rtx insn, tmpreg; |
daee63dd | 3566 | |
a9960cdc | 3567 | gr_saved = 0; |
3568 | fr_saved = 0; | |
3ddcbb9d | 3569 | save_fregs = 0; |
3a51bad9 | 3570 | |
256f9b65 | 3571 | /* Compute total size for frame pointer, filler, locals and rounding to |
3572 | the next word boundary. Similar code appears in compute_frame_size | |
3573 | and must be changed in tandem with this code. */ | |
3574 | local_fsize = (size + UNITS_PER_WORD - 1) & ~(UNITS_PER_WORD - 1); | |
3575 | if (local_fsize || frame_pointer_needed) | |
3576 | local_fsize += STARTING_FRAME_OFFSET; | |
3a51bad9 | 3577 | |
a1ab4fa3 | 3578 | actual_fsize = compute_frame_size (size, &save_fregs); |
87ad11b0 | 3579 | |
daee63dd | 3580 | /* Compute a few things we will use often. */ |
440c23df | 3581 | tmpreg = gen_rtx_REG (word_mode, 1); |
87ad11b0 | 3582 | |
6d36483b | 3583 | /* Save RP first. The calling conventions manual states RP will |
cc858176 | 3584 | always be stored into the caller's frame at sp - 20 or sp - 16 |
5e3c5739 | 3585 | depending on which ABI is in use. */ |
a584fe8a | 3586 | if (regs_ever_live[2] || current_function_calls_eh_return) |
6a2c16d6 | 3587 | store_reg (2, TARGET_64BIT ? -16 : -20, STACK_POINTER_REGNUM); |
6d36483b | 3588 | |
daee63dd | 3589 | /* Allocate the local frame and set up the frame pointer if needed. */ |
58361f39 | 3590 | if (actual_fsize != 0) |
3591 | { | |
3592 | if (frame_pointer_needed) | |
3593 | { | |
3594 | /* Copy the old frame pointer temporarily into %r1. Set up the | |
3595 | new stack pointer, then store away the saved old frame pointer | |
a584fe8a | 3596 | into the stack at sp and at the same time update the stack |
3597 | pointer by actual_fsize bytes. Two versions, first | |
58361f39 | 3598 | handles small (<8k) frames. The second handles large (>=8k) |
3599 | frames. */ | |
a584fe8a | 3600 | insn = emit_move_insn (tmpreg, frame_pointer_rtx); |
3601 | if (DO_FRAME_NOTES) | |
dc873350 | 3602 | RTX_FRAME_RELATED_P (insn) = 1; |
a584fe8a | 3603 | |
3604 | insn = emit_move_insn (frame_pointer_rtx, stack_pointer_rtx); | |
3605 | if (DO_FRAME_NOTES) | |
3606 | RTX_FRAME_RELATED_P (insn) = 1; | |
3607 | ||
3608 | if (VAL_14_BITS_P (actual_fsize)) | |
3609 | store_reg_modify (STACK_POINTER_REGNUM, 1, actual_fsize); | |
58361f39 | 3610 | else |
3611 | { | |
3612 | /* It is incorrect to store the saved frame pointer at *sp, | |
3613 | then increment sp (writes beyond the current stack boundary). | |
3614 | ||
3615 | So instead use stwm to store at *sp and post-increment the | |
3616 | stack pointer as an atomic operation. Then increment sp to | |
3617 | finish allocating the new frame. */ | |
6bcdc1fb | 3618 | HOST_WIDE_INT adjust1 = 8192 - 64; |
3619 | HOST_WIDE_INT adjust2 = actual_fsize - adjust1; | |
cc858176 | 3620 | |
a584fe8a | 3621 | store_reg_modify (STACK_POINTER_REGNUM, 1, adjust1); |
6a2c16d6 | 3622 | set_reg_plus_d (STACK_POINTER_REGNUM, STACK_POINTER_REGNUM, |
a584fe8a | 3623 | adjust2, 1); |
58361f39 | 3624 | } |
a584fe8a | 3625 | |
e9ec370e | 3626 | /* We set SAVE_SP in frames that need a frame pointer. Thus, |
3627 | we need to store the previous stack pointer (frame pointer) | |
3628 | into the frame marker on targets that use the HP unwind | |
3629 | library. This allows the HP unwind library to be used to | |
3630 | unwind GCC frames. However, we are not fully compatible | |
3631 | with the HP library because our frame layout differs from | |
3632 | that specified in the HP runtime specification. | |
3633 | ||
3634 | We don't want a frame note on this instruction as the frame | |
3635 | marker moves during dynamic stack allocation. | |
3636 | ||
3637 | This instruction also serves as a blockage to prevent | |
3638 | register spills from being scheduled before the stack | |
3639 | pointer is raised. This is necessary as we store | |
3640 | registers using the frame pointer as a base register, | |
3641 | and the frame pointer is set before sp is raised. */ | |
3642 | if (TARGET_HPUX_UNWIND_LIBRARY) | |
3643 | { | |
3644 | rtx addr = gen_rtx_PLUS (word_mode, stack_pointer_rtx, | |
3645 | GEN_INT (TARGET_64BIT ? -8 : -4)); | |
3646 | ||
3647 | emit_move_insn (gen_rtx_MEM (word_mode, addr), | |
3648 | frame_pointer_rtx); | |
3649 | } | |
3650 | else | |
3651 | emit_insn (gen_blockage ()); | |
58361f39 | 3652 | } |
3653 | /* no frame pointer needed. */ | |
3654 | else | |
3655 | { | |
3656 | /* In some cases we can perform the first callee register save | |
3657 | and allocating the stack frame at the same time. If so, just | |
3658 | make a note of it and defer allocating the frame until saving | |
3659 | the callee registers. */ | |
df6edefa | 3660 | if (VAL_14_BITS_P (actual_fsize) && local_fsize == 0) |
58361f39 | 3661 | merge_sp_adjust_with_store = 1; |
3662 | /* Can not optimize. Adjust the stack frame by actual_fsize | |
3663 | bytes. */ | |
3664 | else | |
6a2c16d6 | 3665 | set_reg_plus_d (STACK_POINTER_REGNUM, STACK_POINTER_REGNUM, |
a584fe8a | 3666 | actual_fsize, 1); |
58361f39 | 3667 | } |
372ef038 | 3668 | } |
3669 | ||
6d36483b | 3670 | /* Normal register save. |
daee63dd | 3671 | |
3672 | Do not save the frame pointer in the frame_pointer_needed case. It | |
3673 | was done earlier. */ | |
87ad11b0 | 3674 | if (frame_pointer_needed) |
3675 | { | |
a584fe8a | 3676 | offset = local_fsize; |
3677 | ||
3678 | /* Saving the EH return data registers in the frame is the simplest | |
3679 | way to get the frame unwind information emitted. We put them | |
3680 | just before the general registers. */ | |
3681 | if (DO_FRAME_NOTES && current_function_calls_eh_return) | |
3682 | { | |
3683 | unsigned int i, regno; | |
3684 | ||
3685 | for (i = 0; ; ++i) | |
3686 | { | |
3687 | regno = EH_RETURN_DATA_REGNO (i); | |
3688 | if (regno == INVALID_REGNUM) | |
3689 | break; | |
3690 | ||
3691 | store_reg (regno, offset, FRAME_POINTER_REGNUM); | |
3692 | offset += UNITS_PER_WORD; | |
3693 | } | |
3694 | } | |
3695 | ||
3696 | for (i = 18; i >= 4; i--) | |
98328a39 | 3697 | if (regs_ever_live[i] && ! call_used_regs[i]) |
87ad11b0 | 3698 | { |
6a2c16d6 | 3699 | store_reg (i, offset, FRAME_POINTER_REGNUM); |
6ec4380b | 3700 | offset += UNITS_PER_WORD; |
a9960cdc | 3701 | gr_saved++; |
87ad11b0 | 3702 | } |
7f7c4869 | 3703 | /* Account for %r3 which is saved in a special place. */ |
9b0c95be | 3704 | gr_saved++; |
87ad11b0 | 3705 | } |
daee63dd | 3706 | /* No frame pointer needed. */ |
87ad11b0 | 3707 | else |
3708 | { | |
a584fe8a | 3709 | offset = local_fsize - actual_fsize; |
3710 | ||
3711 | /* Saving the EH return data registers in the frame is the simplest | |
3712 | way to get the frame unwind information emitted. */ | |
3713 | if (DO_FRAME_NOTES && current_function_calls_eh_return) | |
3714 | { | |
3715 | unsigned int i, regno; | |
3716 | ||
3717 | for (i = 0; ; ++i) | |
3718 | { | |
3719 | regno = EH_RETURN_DATA_REGNO (i); | |
3720 | if (regno == INVALID_REGNUM) | |
3721 | break; | |
3722 | ||
3723 | /* If merge_sp_adjust_with_store is nonzero, then we can | |
3724 | optimize the first save. */ | |
3725 | if (merge_sp_adjust_with_store) | |
3726 | { | |
3727 | store_reg_modify (STACK_POINTER_REGNUM, regno, -offset); | |
3728 | merge_sp_adjust_with_store = 0; | |
3729 | } | |
3730 | else | |
3731 | store_reg (regno, offset, STACK_POINTER_REGNUM); | |
3732 | offset += UNITS_PER_WORD; | |
3733 | } | |
3734 | } | |
3735 | ||
3736 | for (i = 18; i >= 3; i--) | |
98328a39 | 3737 | if (regs_ever_live[i] && ! call_used_regs[i]) |
87ad11b0 | 3738 | { |
6d36483b | 3739 | /* If merge_sp_adjust_with_store is nonzero, then we can |
afd7b680 | 3740 | optimize the first GR save. */ |
201f01e9 | 3741 | if (merge_sp_adjust_with_store) |
afd7b680 | 3742 | { |
a584fe8a | 3743 | store_reg_modify (STACK_POINTER_REGNUM, i, -offset); |
afd7b680 | 3744 | merge_sp_adjust_with_store = 0; |
afd7b680 | 3745 | } |
3746 | else | |
6a2c16d6 | 3747 | store_reg (i, offset, STACK_POINTER_REGNUM); |
6ec4380b | 3748 | offset += UNITS_PER_WORD; |
a9960cdc | 3749 | gr_saved++; |
87ad11b0 | 3750 | } |
daee63dd | 3751 | |
afd7b680 | 3752 | /* If we wanted to merge the SP adjustment with a GR save, but we never |
daee63dd | 3753 | did any GR saves, then just emit the adjustment here. */ |
201f01e9 | 3754 | if (merge_sp_adjust_with_store) |
6a2c16d6 | 3755 | set_reg_plus_d (STACK_POINTER_REGNUM, STACK_POINTER_REGNUM, |
a584fe8a | 3756 | actual_fsize, 1); |
87ad11b0 | 3757 | } |
6d36483b | 3758 | |
df6edefa | 3759 | /* The hppa calling conventions say that %r19, the pic offset |
3760 | register, is saved at sp - 32 (in this function's frame) | |
3761 | when generating PIC code. FIXME: What is the correct thing | |
3762 | to do for functions which make no calls and allocate no | |
3763 | frame? Do we need to allocate a frame, or can we just omit | |
8f177faf | 3764 | the save? For now we'll just omit the save. |
3765 | ||
3766 | We don't want a note on this insn as the frame marker can | |
3767 | move if there is a dynamic stack allocation. */ | |
df6edefa | 3768 | if (flag_pic && actual_fsize != 0 && !TARGET_64BIT) |
8f177faf | 3769 | { |
3770 | rtx addr = gen_rtx_PLUS (word_mode, stack_pointer_rtx, GEN_INT (-32)); | |
3771 | ||
3772 | emit_move_insn (gen_rtx_MEM (word_mode, addr), pic_offset_table_rtx); | |
3773 | ||
3774 | } | |
df6edefa | 3775 | |
87ad11b0 | 3776 | /* Align pointer properly (doubleword boundary). */ |
3777 | offset = (offset + 7) & ~7; | |
3778 | ||
3779 | /* Floating point register store. */ | |
3780 | if (save_fregs) | |
87ad11b0 | 3781 | { |
a584fe8a | 3782 | rtx base; |
3783 | ||
daee63dd | 3784 | /* First get the frame or stack pointer to the start of the FP register |
3785 | save area. */ | |
a1ab4fa3 | 3786 | if (frame_pointer_needed) |
a584fe8a | 3787 | { |
3788 | set_reg_plus_d (1, FRAME_POINTER_REGNUM, offset, 0); | |
3789 | base = frame_pointer_rtx; | |
3790 | } | |
a1ab4fa3 | 3791 | else |
a584fe8a | 3792 | { |
3793 | set_reg_plus_d (1, STACK_POINTER_REGNUM, offset, 0); | |
3794 | base = stack_pointer_rtx; | |
3795 | } | |
daee63dd | 3796 | |
3797 | /* Now actually save the FP registers. */ | |
bac38c40 | 3798 | for (i = FP_SAVED_REG_LAST; i >= FP_SAVED_REG_FIRST; i -= FP_REG_STEP) |
7f7c4869 | 3799 | { |
5e3c5739 | 3800 | if (regs_ever_live[i] |
3801 | || (! TARGET_64BIT && regs_ever_live[i + 1])) | |
7f7c4869 | 3802 | { |
6a2c16d6 | 3803 | rtx addr, insn, reg; |
cc858176 | 3804 | addr = gen_rtx_MEM (DFmode, gen_rtx_POST_INC (DFmode, tmpreg)); |
3805 | reg = gen_rtx_REG (DFmode, i); | |
6a2c16d6 | 3806 | insn = emit_move_insn (addr, reg); |
3807 | if (DO_FRAME_NOTES) | |
3808 | { | |
3809 | RTX_FRAME_RELATED_P (insn) = 1; | |
a584fe8a | 3810 | if (TARGET_64BIT) |
3811 | { | |
3812 | rtx mem = gen_rtx_MEM (DFmode, | |
3813 | plus_constant (base, offset)); | |
3814 | REG_NOTES (insn) | |
3815 | = gen_rtx_EXPR_LIST (REG_FRAME_RELATED_EXPR, | |
3816 | gen_rtx_SET (VOIDmode, mem, reg), | |
3817 | REG_NOTES (insn)); | |
3818 | } | |
3819 | else | |
3820 | { | |
3821 | rtx meml = gen_rtx_MEM (SFmode, | |
3822 | plus_constant (base, offset)); | |
3823 | rtx memr = gen_rtx_MEM (SFmode, | |
3824 | plus_constant (base, offset + 4)); | |
3825 | rtx regl = gen_rtx_REG (SFmode, i); | |
3826 | rtx regr = gen_rtx_REG (SFmode, i + 1); | |
3827 | rtx setl = gen_rtx_SET (VOIDmode, meml, regl); | |
3828 | rtx setr = gen_rtx_SET (VOIDmode, memr, regr); | |
3829 | rtvec vec; | |
3830 | ||
3831 | RTX_FRAME_RELATED_P (setl) = 1; | |
3832 | RTX_FRAME_RELATED_P (setr) = 1; | |
3833 | vec = gen_rtvec (2, setl, setr); | |
3834 | REG_NOTES (insn) | |
3835 | = gen_rtx_EXPR_LIST (REG_FRAME_RELATED_EXPR, | |
3836 | gen_rtx_SEQUENCE (VOIDmode, vec), | |
3837 | REG_NOTES (insn)); | |
3838 | } | |
6a2c16d6 | 3839 | } |
3840 | offset += GET_MODE_SIZE (DFmode); | |
7f7c4869 | 3841 | fr_saved++; |
3842 | } | |
3843 | } | |
87ad11b0 | 3844 | } |
3845 | } | |
3846 | ||
cc858176 | 3847 | /* Emit RTL to load REG from the memory location specified by BASE+DISP. |
3848 | Handle case where DISP > 8k by using the add_high_const patterns. */ | |
3849 | ||
6a2c16d6 | 3850 | static void |
6bcdc1fb | 3851 | load_reg (int reg, HOST_WIDE_INT disp, int base) |
cc858176 | 3852 | { |
6bcdc1fb | 3853 | rtx dest = gen_rtx_REG (word_mode, reg); |
3854 | rtx basereg = gen_rtx_REG (Pmode, base); | |
3855 | rtx src; | |
cc858176 | 3856 | |
cc858176 | 3857 | if (VAL_14_BITS_P (disp)) |
6bcdc1fb | 3858 | src = gen_rtx_MEM (word_mode, plus_constant (basereg, disp)); |
3859 | else if (TARGET_64BIT && !VAL_32_BITS_P (disp)) | |
cc858176 | 3860 | { |
6bcdc1fb | 3861 | rtx delta = GEN_INT (disp); |
3862 | rtx tmpreg = gen_rtx_REG (Pmode, 1); | |
3863 | ||
3864 | emit_move_insn (tmpreg, delta); | |
3865 | if (TARGET_DISABLE_INDEXING) | |
3866 | { | |
3867 | emit_move_insn (tmpreg, gen_rtx_PLUS (Pmode, tmpreg, basereg)); | |
3868 | src = gen_rtx_MEM (word_mode, tmpreg); | |
3869 | } | |
3870 | else | |
3871 | src = gen_rtx_MEM (word_mode, gen_rtx_PLUS (Pmode, tmpreg, basereg)); | |
cc858176 | 3872 | } |
3873 | else | |
3874 | { | |
3875 | rtx delta = GEN_INT (disp); | |
3876 | rtx high = gen_rtx_PLUS (Pmode, basereg, gen_rtx_HIGH (Pmode, delta)); | |
3877 | rtx tmpreg = gen_rtx_REG (Pmode, 1); | |
6bcdc1fb | 3878 | |
cc858176 | 3879 | emit_move_insn (tmpreg, high); |
3880 | src = gen_rtx_MEM (word_mode, gen_rtx_LO_SUM (Pmode, tmpreg, delta)); | |
cc858176 | 3881 | } |
6bcdc1fb | 3882 | |
3883 | emit_move_insn (dest, src); | |
cc858176 | 3884 | } |
daee63dd | 3885 | |
2247cc5f | 3886 | /* Update the total code bytes output to the text section. */ |
3887 | ||
3888 | static void | |
5c1d8983 | 3889 | update_total_code_bytes (int nbytes) |
2247cc5f | 3890 | { |
3891 | if ((TARGET_PORTABLE_RUNTIME || !TARGET_GAS || !TARGET_SOM) | |
8a05c3c2 | 3892 | && !IN_NAMED_SECTION_P (cfun->decl)) |
2247cc5f | 3893 | { |
3894 | if (INSN_ADDRESSES_SET_P ()) | |
3895 | { | |
3896 | unsigned long old_total = total_code_bytes; | |
3897 | ||
3898 | total_code_bytes += nbytes; | |
3899 | ||
3900 | /* Be prepared to handle overflows. */ | |
3901 | if (old_total > total_code_bytes) | |
3902 | total_code_bytes = -1; | |
3903 | } | |
3904 | else | |
3905 | total_code_bytes = -1; | |
3906 | } | |
3907 | } | |
3908 | ||
17d9b0c3 | 3909 | /* This function generates the assembly code for function exit. |
3910 | Args are as for output_function_prologue (). | |
3911 | ||
3912 | The function epilogue should not depend on the current stack | |
3913 | pointer! It should use the frame pointer only. This is mandatory | |
3914 | because of alloca; we also take advantage of it to omit stack | |
6dc3b0d9 | 3915 | adjustments before returning. */ |
17d9b0c3 | 3916 | |
3917 | static void | |
5c1d8983 | 3918 | pa_output_function_epilogue (FILE *file, HOST_WIDE_INT size ATTRIBUTE_UNUSED) |
87ad11b0 | 3919 | { |
3695c664 | 3920 | rtx insn = get_last_insn (); |
3921 | ||
2247cc5f | 3922 | last_address = 0; |
3923 | ||
daee63dd | 3924 | /* hppa_expand_epilogue does the dirty work now. We just need |
3925 | to output the assembler directives which denote the end | |
3695c664 | 3926 | of a function. |
3927 | ||
3928 | To make debuggers happy, emit a nop if the epilogue was completely | |
3929 | eliminated due to a volatile call as the last insn in the | |
6d36483b | 3930 | current function. That way the return address (in %r2) will |
3695c664 | 3931 | always point to a valid instruction in the current function. */ |
3932 | ||
3933 | /* Get the last real insn. */ | |
3934 | if (GET_CODE (insn) == NOTE) | |
3935 | insn = prev_real_insn (insn); | |
3936 | ||
3937 | /* If it is a sequence, then look inside. */ | |
3938 | if (insn && GET_CODE (insn) == INSN && GET_CODE (PATTERN (insn)) == SEQUENCE) | |
3939 | insn = XVECEXP (PATTERN (insn), 0, 0); | |
3940 | ||
6d36483b | 3941 | /* If insn is a CALL_INSN, then it must be a call to a volatile |
3695c664 | 3942 | function (otherwise there would be epilogue insns). */ |
3943 | if (insn && GET_CODE (insn) == CALL_INSN) | |
90c41894 | 3944 | { |
3945 | fputs ("\tnop\n", file); | |
3946 | last_address += 4; | |
3947 | } | |
6d36483b | 3948 | |
9c0ac0fd | 3949 | fputs ("\t.EXIT\n\t.PROCEND\n", file); |
90c41894 | 3950 | |
916c9cef | 3951 | if (TARGET_SOM && TARGET_GAS) |
3952 | { | |
3953 | /* We done with this subspace except possibly for some additional | |
3954 | debug information. Forget that we are in this subspace to ensure | |
3955 | that the next function is output in its own subspace. */ | |
2f14b1f9 | 3956 | in_section = NULL; |
78962d38 | 3957 | cfun->machine->in_nsubspa = 2; |
916c9cef | 3958 | } |
3959 | ||
2247cc5f | 3960 | if (INSN_ADDRESSES_SET_P ()) |
90c41894 | 3961 | { |
2247cc5f | 3962 | insn = get_last_nonnote_insn (); |
3963 | last_address += INSN_ADDRESSES (INSN_UID (insn)); | |
3964 | if (INSN_P (insn)) | |
3965 | last_address += insn_default_length (insn); | |
3966 | last_address = ((last_address + FUNCTION_BOUNDARY / BITS_PER_UNIT - 1) | |
3967 | & ~(FUNCTION_BOUNDARY / BITS_PER_UNIT - 1)); | |
90c41894 | 3968 | } |
2247cc5f | 3969 | |
3970 | /* Finally, update the total number of code bytes output so far. */ | |
3971 | update_total_code_bytes (last_address); | |
daee63dd | 3972 | } |
afd7b680 | 3973 | |
daee63dd | 3974 | void |
5c1d8983 | 3975 | hppa_expand_epilogue (void) |
daee63dd | 3976 | { |
6d36483b | 3977 | rtx tmpreg; |
6bcdc1fb | 3978 | HOST_WIDE_INT offset; |
3979 | HOST_WIDE_INT ret_off = 0; | |
3980 | int i; | |
58361f39 | 3981 | int merge_sp_adjust_with_load = 0; |
daee63dd | 3982 | |
3983 | /* We will use this often. */ | |
440c23df | 3984 | tmpreg = gen_rtx_REG (word_mode, 1); |
daee63dd | 3985 | |
3986 | /* Try to restore RP early to avoid load/use interlocks when | |
3987 | RP gets used in the return (bv) instruction. This appears to still | |
6dc3b0d9 | 3988 | be necessary even when we schedule the prologue and epilogue. */ |
a584fe8a | 3989 | if (regs_ever_live [2] || current_function_calls_eh_return) |
58361f39 | 3990 | { |
3991 | ret_off = TARGET_64BIT ? -16 : -20; | |
3992 | if (frame_pointer_needed) | |
3993 | { | |
6a2c16d6 | 3994 | load_reg (2, ret_off, FRAME_POINTER_REGNUM); |
58361f39 | 3995 | ret_off = 0; |
3996 | } | |
3997 | else | |
3998 | { | |
3999 | /* No frame pointer, and stack is smaller than 8k. */ | |
4000 | if (VAL_14_BITS_P (ret_off - actual_fsize)) | |
4001 | { | |
6a2c16d6 | 4002 | load_reg (2, ret_off - actual_fsize, STACK_POINTER_REGNUM); |
58361f39 | 4003 | ret_off = 0; |
4004 | } | |
4005 | } | |
4006 | } | |
daee63dd | 4007 | |
4008 | /* General register restores. */ | |
87ad11b0 | 4009 | if (frame_pointer_needed) |
4010 | { | |
a584fe8a | 4011 | offset = local_fsize; |
4012 | ||
4013 | /* If the current function calls __builtin_eh_return, then we need | |
4014 | to restore the saved EH data registers. */ | |
4015 | if (DO_FRAME_NOTES && current_function_calls_eh_return) | |
4016 | { | |
4017 | unsigned int i, regno; | |
4018 | ||
4019 | for (i = 0; ; ++i) | |
4020 | { | |
4021 | regno = EH_RETURN_DATA_REGNO (i); | |
4022 | if (regno == INVALID_REGNUM) | |
4023 | break; | |
4024 | ||
4025 | load_reg (regno, offset, FRAME_POINTER_REGNUM); | |
4026 | offset += UNITS_PER_WORD; | |
4027 | } | |
4028 | } | |
4029 | ||
4030 | for (i = 18; i >= 4; i--) | |
98328a39 | 4031 | if (regs_ever_live[i] && ! call_used_regs[i]) |
87ad11b0 | 4032 | { |
6a2c16d6 | 4033 | load_reg (i, offset, FRAME_POINTER_REGNUM); |
6ec4380b | 4034 | offset += UNITS_PER_WORD; |
87ad11b0 | 4035 | } |
87ad11b0 | 4036 | } |
4037 | else | |
4038 | { | |
a584fe8a | 4039 | offset = local_fsize - actual_fsize; |
4040 | ||
4041 | /* If the current function calls __builtin_eh_return, then we need | |
4042 | to restore the saved EH data registers. */ | |
4043 | if (DO_FRAME_NOTES && current_function_calls_eh_return) | |
4044 | { | |
4045 | unsigned int i, regno; | |
4046 | ||
4047 | for (i = 0; ; ++i) | |
4048 | { | |
4049 | regno = EH_RETURN_DATA_REGNO (i); | |
4050 | if (regno == INVALID_REGNUM) | |
4051 | break; | |
4052 | ||
4053 | /* Only for the first load. | |
4054 | merge_sp_adjust_with_load holds the register load | |
4055 | with which we will merge the sp adjustment. */ | |
4056 | if (merge_sp_adjust_with_load == 0 | |
4057 | && local_fsize == 0 | |
4058 | && VAL_14_BITS_P (-actual_fsize)) | |
4059 | merge_sp_adjust_with_load = regno; | |
4060 | else | |
4061 | load_reg (regno, offset, STACK_POINTER_REGNUM); | |
4062 | offset += UNITS_PER_WORD; | |
4063 | } | |
4064 | } | |
4065 | ||
4066 | for (i = 18; i >= 3; i--) | |
7f7c4869 | 4067 | { |
98328a39 | 4068 | if (regs_ever_live[i] && ! call_used_regs[i]) |
7f7c4869 | 4069 | { |
7f7c4869 | 4070 | /* Only for the first load. |
4071 | merge_sp_adjust_with_load holds the register load | |
4072 | with which we will merge the sp adjustment. */ | |
58361f39 | 4073 | if (merge_sp_adjust_with_load == 0 |
7f7c4869 | 4074 | && local_fsize == 0 |
58361f39 | 4075 | && VAL_14_BITS_P (-actual_fsize)) |
7f7c4869 | 4076 | merge_sp_adjust_with_load = i; |
4077 | else | |
6a2c16d6 | 4078 | load_reg (i, offset, STACK_POINTER_REGNUM); |
6ec4380b | 4079 | offset += UNITS_PER_WORD; |
7f7c4869 | 4080 | } |
4081 | } | |
87ad11b0 | 4082 | } |
daee63dd | 4083 | |
87ad11b0 | 4084 | /* Align pointer properly (doubleword boundary). */ |
4085 | offset = (offset + 7) & ~7; | |
4086 | ||
daee63dd | 4087 | /* FP register restores. */ |
87ad11b0 | 4088 | if (save_fregs) |
87ad11b0 | 4089 | { |
daee63dd | 4090 | /* Adjust the register to index off of. */ |
a1ab4fa3 | 4091 | if (frame_pointer_needed) |
a584fe8a | 4092 | set_reg_plus_d (1, FRAME_POINTER_REGNUM, offset, 0); |
a1ab4fa3 | 4093 | else |
a584fe8a | 4094 | set_reg_plus_d (1, STACK_POINTER_REGNUM, offset, 0); |
daee63dd | 4095 | |
4096 | /* Actually do the restores now. */ | |
bac38c40 | 4097 | for (i = FP_SAVED_REG_LAST; i >= FP_SAVED_REG_FIRST; i -= FP_REG_STEP) |
cc858176 | 4098 | if (regs_ever_live[i] |
4099 | || (! TARGET_64BIT && regs_ever_live[i + 1])) | |
4100 | { | |
4101 | rtx src = gen_rtx_MEM (DFmode, gen_rtx_POST_INC (DFmode, tmpreg)); | |
4102 | rtx dest = gen_rtx_REG (DFmode, i); | |
6a2c16d6 | 4103 | emit_move_insn (dest, src); |
cc858176 | 4104 | } |
87ad11b0 | 4105 | } |
daee63dd | 4106 | |
14660146 | 4107 | /* Emit a blockage insn here to keep these insns from being moved to |
4108 | an earlier spot in the epilogue, or into the main instruction stream. | |
4109 | ||
4110 | This is necessary as we must not cut the stack back before all the | |
4111 | restores are finished. */ | |
4112 | emit_insn (gen_blockage ()); | |
daee63dd | 4113 | |
9840d99d | 4114 | /* Reset stack pointer (and possibly frame pointer). The stack |
42819d4e | 4115 | pointer is initially set to fp + 64 to avoid a race condition. */ |
58361f39 | 4116 | if (frame_pointer_needed) |
87ad11b0 | 4117 | { |
cc858176 | 4118 | rtx delta = GEN_INT (-64); |
a584fe8a | 4119 | |
4120 | set_reg_plus_d (STACK_POINTER_REGNUM, FRAME_POINTER_REGNUM, 64, 0); | |
4121 | emit_insn (gen_pre_load (frame_pointer_rtx, stack_pointer_rtx, delta)); | |
87ad11b0 | 4122 | } |
daee63dd | 4123 | /* If we were deferring a callee register restore, do it now. */ |
58361f39 | 4124 | else if (merge_sp_adjust_with_load) |
4125 | { | |
4126 | rtx delta = GEN_INT (-actual_fsize); | |
cc858176 | 4127 | rtx dest = gen_rtx_REG (word_mode, merge_sp_adjust_with_load); |
a584fe8a | 4128 | |
4129 | emit_insn (gen_pre_load (dest, stack_pointer_rtx, delta)); | |
58361f39 | 4130 | } |
daee63dd | 4131 | else if (actual_fsize != 0) |
a584fe8a | 4132 | set_reg_plus_d (STACK_POINTER_REGNUM, STACK_POINTER_REGNUM, |
4133 | - actual_fsize, 0); | |
58361f39 | 4134 | |
4135 | /* If we haven't restored %r2 yet (no frame pointer, and a stack | |
4136 | frame greater than 8k), do so now. */ | |
4137 | if (ret_off != 0) | |
6a2c16d6 | 4138 | load_reg (2, ret_off, STACK_POINTER_REGNUM); |
a584fe8a | 4139 | |
4140 | if (DO_FRAME_NOTES && current_function_calls_eh_return) | |
4141 | { | |
4142 | rtx sa = EH_RETURN_STACKADJ_RTX; | |
4143 | ||
4144 | emit_insn (gen_blockage ()); | |
4145 | emit_insn (TARGET_64BIT | |
4146 | ? gen_subdi3 (stack_pointer_rtx, stack_pointer_rtx, sa) | |
4147 | : gen_subsi3 (stack_pointer_rtx, stack_pointer_rtx, sa)); | |
4148 | } | |
87ad11b0 | 4149 | } |
4150 | ||
d7e2f694 | 4151 | rtx |
5c1d8983 | 4152 | hppa_pic_save_rtx (void) |
cf3de5bb | 4153 | { |
d7e2f694 | 4154 | return get_hard_reg_initial_val (word_mode, PIC_OFFSET_TABLE_REGNUM); |
df6edefa | 4155 | } |
4156 | ||
bb1bc2ca | 4157 | #ifndef NO_DEFERRED_PROFILE_COUNTERS |
4158 | #define NO_DEFERRED_PROFILE_COUNTERS 0 | |
4159 | #endif | |
4160 | ||
bb1bc2ca | 4161 | |
4162 | /* Vector of funcdef numbers. */ | |
4163 | static VEC(int,heap) *funcdef_nos; | |
4164 | ||
4165 | /* Output deferred profile counters. */ | |
4166 | static void | |
4167 | output_deferred_profile_counters (void) | |
4168 | { | |
4169 | unsigned int i; | |
4170 | int align, n; | |
4171 | ||
4172 | if (VEC_empty (int, funcdef_nos)) | |
4173 | return; | |
4174 | ||
2f14b1f9 | 4175 | switch_to_section (data_section); |
bb1bc2ca | 4176 | align = MIN (BIGGEST_ALIGNMENT, LONG_TYPE_SIZE); |
4177 | ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (align / BITS_PER_UNIT)); | |
4178 | ||
4179 | for (i = 0; VEC_iterate (int, funcdef_nos, i, n); i++) | |
4180 | { | |
4181 | targetm.asm_out.internal_label (asm_out_file, "LP", n); | |
4182 | assemble_integer (const0_rtx, LONG_TYPE_SIZE / BITS_PER_UNIT, align, 1); | |
4183 | } | |
4184 | ||
4185 | VEC_free (int, heap, funcdef_nos); | |
4186 | } | |
4187 | ||
df6edefa | 4188 | void |
5c1d8983 | 4189 | hppa_profile_hook (int label_no) |
df6edefa | 4190 | { |
4da37e2f | 4191 | /* We use SImode for the address of the function in both 32 and |
4192 | 64-bit code to avoid having to provide DImode versions of the | |
4193 | lcla2 and load_offset_label_address insn patterns. */ | |
4194 | rtx reg = gen_reg_rtx (SImode); | |
4195 | rtx label_rtx = gen_label_rtx (); | |
a9ac13e4 | 4196 | rtx begin_label_rtx, call_insn; |
4197 | char begin_label_name[16]; | |
df6edefa | 4198 | |
a9ac13e4 | 4199 | ASM_GENERATE_INTERNAL_LABEL (begin_label_name, FUNC_BEGIN_PROLOG_LABEL, |
b8a21949 | 4200 | label_no); |
4da37e2f | 4201 | begin_label_rtx = gen_rtx_SYMBOL_REF (SImode, ggc_strdup (begin_label_name)); |
df6edefa | 4202 | |
4203 | if (TARGET_64BIT) | |
4204 | emit_move_insn (arg_pointer_rtx, | |
4205 | gen_rtx_PLUS (word_mode, virtual_outgoing_args_rtx, | |
4206 | GEN_INT (64))); | |
4207 | ||
df6edefa | 4208 | emit_move_insn (gen_rtx_REG (word_mode, 26), gen_rtx_REG (word_mode, 2)); |
4209 | ||
4da37e2f | 4210 | /* The address of the function is loaded into %r25 with a instruction- |
4211 | relative sequence that avoids the use of relocations. The sequence | |
4212 | is split so that the load_offset_label_address instruction can | |
4213 | occupy the delay slot of the call to _mcount. */ | |
4214 | if (TARGET_PA_20) | |
4215 | emit_insn (gen_lcla2 (reg, label_rtx)); | |
4216 | else | |
4217 | emit_insn (gen_lcla1 (reg, label_rtx)); | |
4218 | ||
4219 | emit_insn (gen_load_offset_label_address (gen_rtx_REG (SImode, 25), | |
4220 | reg, begin_label_rtx, label_rtx)); | |
4221 | ||
bb1bc2ca | 4222 | #if !NO_DEFERRED_PROFILE_COUNTERS |
df6edefa | 4223 | { |
4224 | rtx count_label_rtx, addr, r24; | |
a9ac13e4 | 4225 | char count_label_name[16]; |
df6edefa | 4226 | |
bb1bc2ca | 4227 | VEC_safe_push (int, heap, funcdef_nos, label_no); |
a9ac13e4 | 4228 | ASM_GENERATE_INTERNAL_LABEL (count_label_name, "LP", label_no); |
4229 | count_label_rtx = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (count_label_name)); | |
df6edefa | 4230 | |
831a12d9 | 4231 | addr = force_reg (Pmode, count_label_rtx); |
df6edefa | 4232 | r24 = gen_rtx_REG (Pmode, 24); |
4233 | emit_move_insn (r24, addr); | |
4234 | ||
df6edefa | 4235 | call_insn = |
4da37e2f | 4236 | emit_call_insn (gen_call (gen_rtx_MEM (Pmode, |
4237 | gen_rtx_SYMBOL_REF (Pmode, | |
4238 | "_mcount")), | |
4239 | GEN_INT (TARGET_64BIT ? 24 : 12))); | |
df6edefa | 4240 | |
4241 | use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), r24); | |
4242 | } | |
4243 | #else | |
4da37e2f | 4244 | |
df6edefa | 4245 | call_insn = |
4da37e2f | 4246 | emit_call_insn (gen_call (gen_rtx_MEM (Pmode, |
4247 | gen_rtx_SYMBOL_REF (Pmode, | |
4248 | "_mcount")), | |
4249 | GEN_INT (TARGET_64BIT ? 16 : 8))); | |
4250 | ||
df6edefa | 4251 | #endif |
4252 | ||
4da37e2f | 4253 | use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), gen_rtx_REG (SImode, 25)); |
4254 | use_reg (&CALL_INSN_FUNCTION_USAGE (call_insn), gen_rtx_REG (SImode, 26)); | |
4255 | ||
df6edefa | 4256 | /* Indicate the _mcount call cannot throw, nor will it execute a |
4257 | non-local goto. */ | |
4258 | REG_NOTES (call_insn) | |
4259 | = gen_rtx_EXPR_LIST (REG_EH_REGION, constm1_rtx, REG_NOTES (call_insn)); | |
cf3de5bb | 4260 | } |
4261 | ||
e07ff380 | 4262 | /* Fetch the return address for the frame COUNT steps up from |
4263 | the current frame, after the prologue. FRAMEADDR is the | |
4264 | frame pointer of the COUNT frame. | |
4265 | ||
f49b2e77 | 4266 | We want to ignore any export stub remnants here. To handle this, |
4267 | we examine the code at the return address, and if it is an export | |
4268 | stub, we return a memory rtx for the stub return address stored | |
4269 | at frame-24. | |
a6c6fd6c | 4270 | |
4271 | The value returned is used in two different ways: | |
4272 | ||
4273 | 1. To find a function's caller. | |
4274 | ||
4275 | 2. To change the return address for a function. | |
4276 | ||
4277 | This function handles most instances of case 1; however, it will | |
4278 | fail if there are two levels of stubs to execute on the return | |
4279 | path. The only way I believe that can happen is if the return value | |
4280 | needs a parameter relocation, which never happens for C code. | |
4281 | ||
4282 | This function handles most instances of case 2; however, it will | |
4283 | fail if we did not originally have stub code on the return path | |
f49b2e77 | 4284 | but will need stub code on the new return path. This can happen if |
a6c6fd6c | 4285 | the caller & callee are both in the main program, but the new |
f49b2e77 | 4286 | return location is in a shared library. */ |
e07ff380 | 4287 | |
4288 | rtx | |
5c1d8983 | 4289 | return_addr_rtx (int count, rtx frameaddr) |
e07ff380 | 4290 | { |
4291 | rtx label; | |
f49b2e77 | 4292 | rtx rp; |
e07ff380 | 4293 | rtx saved_rp; |
4294 | rtx ins; | |
4295 | ||
f49b2e77 | 4296 | if (count != 0) |
4297 | return NULL_RTX; | |
b29897dd | 4298 | |
f49b2e77 | 4299 | rp = get_hard_reg_initial_val (Pmode, 2); |
e07ff380 | 4300 | |
f49b2e77 | 4301 | if (TARGET_64BIT || TARGET_NO_SPACE_REGS) |
4302 | return rp; | |
e07ff380 | 4303 | |
b29897dd | 4304 | saved_rp = gen_reg_rtx (Pmode); |
f49b2e77 | 4305 | emit_move_insn (saved_rp, rp); |
e07ff380 | 4306 | |
4307 | /* Get pointer to the instruction stream. We have to mask out the | |
4308 | privilege level from the two low order bits of the return address | |
4309 | pointer here so that ins will point to the start of the first | |
4310 | instruction that would have been executed if we returned. */ | |
f49b2e77 | 4311 | ins = copy_to_reg (gen_rtx_AND (Pmode, rp, MASK_RETURN_ADDR)); |
e07ff380 | 4312 | label = gen_label_rtx (); |
4313 | ||
4314 | /* Check the instruction stream at the normal return address for the | |
4315 | export stub: | |
4316 | ||
4317 | 0x4bc23fd1 | stub+8: ldw -18(sr0,sp),rp | |
4318 | 0x004010a1 | stub+12: ldsid (sr0,rp),r1 | |
4319 | 0x00011820 | stub+16: mtsp r1,sr0 | |
4320 | 0xe0400002 | stub+20: be,n 0(sr0,rp) | |
4321 | ||
4322 | If it is an export stub, than our return address is really in | |
4323 | -24[frameaddr]. */ | |
4324 | ||
e00b80b2 | 4325 | emit_cmp_insn (gen_rtx_MEM (SImode, ins), GEN_INT (0x4bc23fd1), NE, |
4326 | NULL_RTX, SImode, 1); | |
e07ff380 | 4327 | emit_jump_insn (gen_bne (label)); |
4328 | ||
ad851752 | 4329 | emit_cmp_insn (gen_rtx_MEM (SImode, plus_constant (ins, 4)), |
e00b80b2 | 4330 | GEN_INT (0x004010a1), NE, NULL_RTX, SImode, 1); |
e07ff380 | 4331 | emit_jump_insn (gen_bne (label)); |
4332 | ||
ad851752 | 4333 | emit_cmp_insn (gen_rtx_MEM (SImode, plus_constant (ins, 8)), |
e00b80b2 | 4334 | GEN_INT (0x00011820), NE, NULL_RTX, SImode, 1); |
e07ff380 | 4335 | emit_jump_insn (gen_bne (label)); |
4336 | ||
560c4bcb | 4337 | /* 0xe0400002 must be specified as -532676606 so that it won't be |
4338 | rejected as an invalid immediate operand on 64-bit hosts. */ | |
ad851752 | 4339 | emit_cmp_insn (gen_rtx_MEM (SImode, plus_constant (ins, 12)), |
560c4bcb | 4340 | GEN_INT (-532676606), NE, NULL_RTX, SImode, 1); |
e07ff380 | 4341 | |
f49b2e77 | 4342 | /* If there is no export stub then just use the value saved from |
4343 | the return pointer register. */ | |
e07ff380 | 4344 | |
4345 | emit_jump_insn (gen_bne (label)); | |
4346 | ||
f49b2e77 | 4347 | /* Here we know that our return address points to an export |
e07ff380 | 4348 | stub. We don't want to return the address of the export stub, |
f49b2e77 | 4349 | but rather the return address of the export stub. That return |
4350 | address is stored at -24[frameaddr]. */ | |
e07ff380 | 4351 | |
f49b2e77 | 4352 | emit_move_insn (saved_rp, |
4353 | gen_rtx_MEM (Pmode, | |
4354 | memory_address (Pmode, | |
4355 | plus_constant (frameaddr, | |
4356 | -24)))); | |
e07ff380 | 4357 | |
4358 | emit_label (label); | |
f49b2e77 | 4359 | return saved_rp; |
e07ff380 | 4360 | } |
4361 | ||
757d4970 | 4362 | /* This is only valid once reload has completed because it depends on |
4363 | knowing exactly how much (if any) frame there is and... | |
4364 | ||
4365 | It's only valid if there is no frame marker to de-allocate and... | |
4366 | ||
4367 | It's only valid if %r2 hasn't been saved into the caller's frame | |
4368 | (we're not profiling and %r2 isn't live anywhere). */ | |
4369 | int | |
5c1d8983 | 4370 | hppa_can_use_return_insn_p (void) |
757d4970 | 4371 | { |
4372 | return (reload_completed | |
4373 | && (compute_frame_size (get_frame_size (), 0) ? 0 : 1) | |
757d4970 | 4374 | && ! regs_ever_live[2] |
4375 | && ! frame_pointer_needed); | |
4376 | } | |
4377 | ||
87ad11b0 | 4378 | void |
5c1d8983 | 4379 | emit_bcond_fp (enum rtx_code code, rtx operand0) |
87ad11b0 | 4380 | { |
ad851752 | 4381 | emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx, |
4382 | gen_rtx_IF_THEN_ELSE (VOIDmode, | |
4383 | gen_rtx_fmt_ee (code, | |
4384 | VOIDmode, | |
4385 | gen_rtx_REG (CCFPmode, 0), | |
4386 | const0_rtx), | |
4387 | gen_rtx_LABEL_REF (VOIDmode, operand0), | |
4388 | pc_rtx))); | |
87ad11b0 | 4389 | |
4390 | } | |
4391 | ||
4392 | rtx | |
5c1d8983 | 4393 | gen_cmp_fp (enum rtx_code code, rtx operand0, rtx operand1) |
87ad11b0 | 4394 | { |
ad851752 | 4395 | return gen_rtx_SET (VOIDmode, gen_rtx_REG (CCFPmode, 0), |
4396 | gen_rtx_fmt_ee (code, CCFPmode, operand0, operand1)); | |
87ad11b0 | 4397 | } |
4398 | ||
8b49b3c7 | 4399 | /* Adjust the cost of a scheduling dependency. Return the new cost of |
4400 | a dependency LINK or INSN on DEP_INSN. COST is the current cost. */ | |
4401 | ||
747af5e7 | 4402 | static int |
5c1d8983 | 4403 | pa_adjust_cost (rtx insn, rtx link, rtx dep_insn, int cost) |
8b49b3c7 | 4404 | { |
43048d2c | 4405 | enum attr_type attr_type; |
4406 | ||
cde3e16c | 4407 | /* Don't adjust costs for a pa8000 chip, also do not adjust any |
4408 | true dependencies as they are described with bypasses now. */ | |
4409 | if (pa_cpu >= PROCESSOR_8000 || REG_NOTE_KIND (link) == 0) | |
342aabd9 | 4410 | return cost; |
4411 | ||
d402da4b | 4412 | if (! recog_memoized (insn)) |
4413 | return 0; | |
8b49b3c7 | 4414 | |
43048d2c | 4415 | attr_type = get_attr_type (insn); |
4416 | ||
ecf2283d | 4417 | switch (REG_NOTE_KIND (link)) |
8b49b3c7 | 4418 | { |
ecf2283d | 4419 | case REG_DEP_ANTI: |
8b49b3c7 | 4420 | /* Anti dependency; DEP_INSN reads a register that INSN writes some |
4421 | cycles later. */ | |
4422 | ||
43048d2c | 4423 | if (attr_type == TYPE_FPLOAD) |
8b49b3c7 | 4424 | { |
d402da4b | 4425 | rtx pat = PATTERN (insn); |
4426 | rtx dep_pat = PATTERN (dep_insn); | |
4427 | if (GET_CODE (pat) == PARALLEL) | |
4428 | { | |
4429 | /* This happens for the fldXs,mb patterns. */ | |
4430 | pat = XVECEXP (pat, 0, 0); | |
4431 | } | |
4432 | if (GET_CODE (pat) != SET || GET_CODE (dep_pat) != SET) | |
8b49b3c7 | 4433 | /* If this happens, we have to extend this to schedule |
d402da4b | 4434 | optimally. Return 0 for now. */ |
4435 | return 0; | |
8b49b3c7 | 4436 | |
d402da4b | 4437 | if (reg_mentioned_p (SET_DEST (pat), SET_SRC (dep_pat))) |
8b49b3c7 | 4438 | { |
d402da4b | 4439 | if (! recog_memoized (dep_insn)) |
4440 | return 0; | |
8b49b3c7 | 4441 | switch (get_attr_type (dep_insn)) |
4442 | { | |
4443 | case TYPE_FPALU: | |
134b4858 | 4444 | case TYPE_FPMULSGL: |
4445 | case TYPE_FPMULDBL: | |
8b49b3c7 | 4446 | case TYPE_FPDIVSGL: |
4447 | case TYPE_FPDIVDBL: | |
4448 | case TYPE_FPSQRTSGL: | |
4449 | case TYPE_FPSQRTDBL: | |
d402da4b | 4450 | /* A fpload can't be issued until one cycle before a |
01cc3b75 | 4451 | preceding arithmetic operation has finished if |
d402da4b | 4452 | the target of the fpload is any of the sources |
4453 | (or destination) of the arithmetic operation. */ | |
cde3e16c | 4454 | return insn_default_latency (dep_insn) - 1; |
134b4858 | 4455 | |
4456 | default: | |
4457 | return 0; | |
4458 | } | |
4459 | } | |
4460 | } | |
43048d2c | 4461 | else if (attr_type == TYPE_FPALU) |
134b4858 | 4462 | { |
4463 | rtx pat = PATTERN (insn); | |
4464 | rtx dep_pat = PATTERN (dep_insn); | |
4465 | if (GET_CODE (pat) == PARALLEL) | |
4466 | { | |
4467 | /* This happens for the fldXs,mb patterns. */ | |
4468 | pat = XVECEXP (pat, 0, 0); | |
4469 | } | |
4470 | if (GET_CODE (pat) != SET || GET_CODE (dep_pat) != SET) | |
4471 | /* If this happens, we have to extend this to schedule | |
4472 | optimally. Return 0 for now. */ | |
4473 | return 0; | |
4474 | ||
4475 | if (reg_mentioned_p (SET_DEST (pat), SET_SRC (dep_pat))) | |
4476 | { | |
4477 | if (! recog_memoized (dep_insn)) | |
4478 | return 0; | |
4479 | switch (get_attr_type (dep_insn)) | |
4480 | { | |
4481 | case TYPE_FPDIVSGL: | |
4482 | case TYPE_FPDIVDBL: | |
4483 | case TYPE_FPSQRTSGL: | |
4484 | case TYPE_FPSQRTDBL: | |
4485 | /* An ALU flop can't be issued until two cycles before a | |
01cc3b75 | 4486 | preceding divide or sqrt operation has finished if |
134b4858 | 4487 | the target of the ALU flop is any of the sources |
4488 | (or destination) of the divide or sqrt operation. */ | |
cde3e16c | 4489 | return insn_default_latency (dep_insn) - 2; |
8b49b3c7 | 4490 | |
4491 | default: | |
4492 | return 0; | |
4493 | } | |
4494 | } | |
4495 | } | |
4496 | ||
4497 | /* For other anti dependencies, the cost is 0. */ | |
4498 | return 0; | |
ecf2283d | 4499 | |
4500 | case REG_DEP_OUTPUT: | |
134b4858 | 4501 | /* Output dependency; DEP_INSN writes a register that INSN writes some |
4502 | cycles later. */ | |
43048d2c | 4503 | if (attr_type == TYPE_FPLOAD) |
134b4858 | 4504 | { |
4505 | rtx pat = PATTERN (insn); | |
4506 | rtx dep_pat = PATTERN (dep_insn); | |
4507 | if (GET_CODE (pat) == PARALLEL) | |
4508 | { | |
4509 | /* This happens for the fldXs,mb patterns. */ | |
4510 | pat = XVECEXP (pat, 0, 0); | |
4511 | } | |
4512 | if (GET_CODE (pat) != SET || GET_CODE (dep_pat) != SET) | |
4513 | /* If this happens, we have to extend this to schedule | |
4514 | optimally. Return 0 for now. */ | |
4515 | return 0; | |
4516 | ||
4517 | if (reg_mentioned_p (SET_DEST (pat), SET_DEST (dep_pat))) | |
4518 | { | |
4519 | if (! recog_memoized (dep_insn)) | |
4520 | return 0; | |
4521 | switch (get_attr_type (dep_insn)) | |
4522 | { | |
4523 | case TYPE_FPALU: | |
4524 | case TYPE_FPMULSGL: | |
4525 | case TYPE_FPMULDBL: | |
4526 | case TYPE_FPDIVSGL: | |
4527 | case TYPE_FPDIVDBL: | |
4528 | case TYPE_FPSQRTSGL: | |
4529 | case TYPE_FPSQRTDBL: | |
4530 | /* A fpload can't be issued until one cycle before a | |
01cc3b75 | 4531 | preceding arithmetic operation has finished if |
134b4858 | 4532 | the target of the fpload is the destination of the |
bea4bad2 | 4533 | arithmetic operation. |
4534 | ||
4535 | Exception: For PA7100LC, PA7200 and PA7300, the cost | |
4536 | is 3 cycles, unless they bundle together. We also | |
4537 | pay the penalty if the second insn is a fpload. */ | |
cde3e16c | 4538 | return insn_default_latency (dep_insn) - 1; |
8b49b3c7 | 4539 | |
134b4858 | 4540 | default: |
4541 | return 0; | |
4542 | } | |
4543 | } | |
4544 | } | |
43048d2c | 4545 | else if (attr_type == TYPE_FPALU) |
134b4858 | 4546 | { |
4547 | rtx pat = PATTERN (insn); | |
4548 | rtx dep_pat = PATTERN (dep_insn); | |
4549 | if (GET_CODE (pat) == PARALLEL) | |
4550 | { | |
4551 | /* This happens for the fldXs,mb patterns. */ | |
4552 | pat = XVECEXP (pat, 0, 0); | |
4553 | } | |
4554 | if (GET_CODE (pat) != SET || GET_CODE (dep_pat) != SET) | |
4555 | /* If this happens, we have to extend this to schedule | |
4556 | optimally. Return 0 for now. */ | |
4557 | return 0; | |
4558 | ||
4559 | if (reg_mentioned_p (SET_DEST (pat), SET_DEST (dep_pat))) | |
4560 | { | |
4561 | if (! recog_memoized (dep_insn)) | |
4562 | return 0; | |
4563 | switch (get_attr_type (dep_insn)) | |
4564 | { | |
4565 | case TYPE_FPDIVSGL: | |
4566 | case TYPE_FPDIVDBL: | |
4567 | case TYPE_FPSQRTSGL: | |
4568 | case TYPE_FPSQRTDBL: | |
4569 | /* An ALU flop can't be issued until two cycles before a | |
01cc3b75 | 4570 | preceding divide or sqrt operation has finished if |
134b4858 | 4571 | the target of the ALU flop is also the target of |
3398e91d | 4572 | the divide or sqrt operation. */ |
cde3e16c | 4573 | return insn_default_latency (dep_insn) - 2; |
134b4858 | 4574 | |
4575 | default: | |
4576 | return 0; | |
4577 | } | |
4578 | } | |
4579 | } | |
4580 | ||
4581 | /* For other output dependencies, the cost is 0. */ | |
4582 | return 0; | |
ecf2283d | 4583 | |
4584 | default: | |
4585 | gcc_unreachable (); | |
134b4858 | 4586 | } |
8b49b3c7 | 4587 | } |
87ad11b0 | 4588 | |
747af5e7 | 4589 | /* Adjust scheduling priorities. We use this to try and keep addil |
4590 | and the next use of %r1 close together. */ | |
4591 | static int | |
5c1d8983 | 4592 | pa_adjust_priority (rtx insn, int priority) |
747af5e7 | 4593 | { |
4594 | rtx set = single_set (insn); | |
4595 | rtx src, dest; | |
4596 | if (set) | |
4597 | { | |
4598 | src = SET_SRC (set); | |
4599 | dest = SET_DEST (set); | |
4600 | if (GET_CODE (src) == LO_SUM | |
4601 | && symbolic_operand (XEXP (src, 1), VOIDmode) | |
4602 | && ! read_only_operand (XEXP (src, 1), VOIDmode)) | |
4603 | priority >>= 3; | |
4604 | ||
4605 | else if (GET_CODE (src) == MEM | |
4606 | && GET_CODE (XEXP (src, 0)) == LO_SUM | |
4607 | && symbolic_operand (XEXP (XEXP (src, 0), 1), VOIDmode) | |
4608 | && ! read_only_operand (XEXP (XEXP (src, 0), 1), VOIDmode)) | |
4609 | priority >>= 1; | |
4610 | ||
4611 | else if (GET_CODE (dest) == MEM | |
4612 | && GET_CODE (XEXP (dest, 0)) == LO_SUM | |
4613 | && symbolic_operand (XEXP (XEXP (dest, 0), 1), VOIDmode) | |
4614 | && ! read_only_operand (XEXP (XEXP (dest, 0), 1), VOIDmode)) | |
4615 | priority >>= 3; | |
4616 | } | |
4617 | return priority; | |
4618 | } | |
4619 | ||
4620 | /* The 700 can only issue a single insn at a time. | |
4621 | The 7XXX processors can issue two insns at a time. | |
4622 | The 8000 can issue 4 insns at a time. */ | |
4623 | static int | |
5c1d8983 | 4624 | pa_issue_rate (void) |
747af5e7 | 4625 | { |
4626 | switch (pa_cpu) | |
4627 | { | |
4628 | case PROCESSOR_700: return 1; | |
4629 | case PROCESSOR_7100: return 2; | |
4630 | case PROCESSOR_7100LC: return 2; | |
4631 | case PROCESSOR_7200: return 2; | |
bea4bad2 | 4632 | case PROCESSOR_7300: return 2; |
747af5e7 | 4633 | case PROCESSOR_8000: return 4; |
4634 | ||
4635 | default: | |
ecf2283d | 4636 | gcc_unreachable (); |
747af5e7 | 4637 | } |
4638 | } | |
4639 | ||
4640 | ||
4641 | ||
58e17b0b | 4642 | /* Return any length adjustment needed by INSN which already has its length |
6d36483b | 4643 | computed as LENGTH. Return zero if no adjustment is necessary. |
58e17b0b | 4644 | |
5fbd5940 | 4645 | For the PA: function calls, millicode calls, and backwards short |
6d36483b | 4646 | conditional branches with unfilled delay slots need an adjustment by +1 |
5fbd5940 | 4647 | (to account for the NOP which will be inserted into the instruction stream). |
58e17b0b | 4648 | |
4649 | Also compute the length of an inline block move here as it is too | |
5fbd5940 | 4650 | complicated to express as a length attribute in pa.md. */ |
58e17b0b | 4651 | int |
5c1d8983 | 4652 | pa_adjust_insn_length (rtx insn, int length) |
58e17b0b | 4653 | { |
4654 | rtx pat = PATTERN (insn); | |
4655 | ||
faf3f8c1 | 4656 | /* Jumps inside switch tables which have unfilled delay slots need |
4657 | adjustment. */ | |
4658 | if (GET_CODE (insn) == JUMP_INSN | |
b932f66c | 4659 | && GET_CODE (pat) == PARALLEL |
4660 | && get_attr_type (insn) == TYPE_BTABLE_BRANCH) | |
3b1e673e | 4661 | return 4; |
58e17b0b | 4662 | /* Millicode insn with an unfilled delay slot. */ |
4663 | else if (GET_CODE (insn) == INSN | |
4664 | && GET_CODE (pat) != SEQUENCE | |
4665 | && GET_CODE (pat) != USE | |
4666 | && GET_CODE (pat) != CLOBBER | |
4667 | && get_attr_type (insn) == TYPE_MILLI) | |
5a1231ef | 4668 | return 4; |
58e17b0b | 4669 | /* Block move pattern. */ |
4670 | else if (GET_CODE (insn) == INSN | |
4671 | && GET_CODE (pat) == PARALLEL | |
f2ebcf32 | 4672 | && GET_CODE (XVECEXP (pat, 0, 0)) == SET |
58e17b0b | 4673 | && GET_CODE (XEXP (XVECEXP (pat, 0, 0), 0)) == MEM |
4674 | && GET_CODE (XEXP (XVECEXP (pat, 0, 0), 1)) == MEM | |
4675 | && GET_MODE (XEXP (XVECEXP (pat, 0, 0), 0)) == BLKmode | |
4676 | && GET_MODE (XEXP (XVECEXP (pat, 0, 0), 1)) == BLKmode) | |
008c057d | 4677 | return compute_movmem_length (insn) - 4; |
a7e1bb24 | 4678 | /* Block clear pattern. */ |
4679 | else if (GET_CODE (insn) == INSN | |
4680 | && GET_CODE (pat) == PARALLEL | |
4681 | && GET_CODE (XVECEXP (pat, 0, 0)) == SET | |
4682 | && GET_CODE (XEXP (XVECEXP (pat, 0, 0), 0)) == MEM | |
4683 | && XEXP (XVECEXP (pat, 0, 0), 1) == const0_rtx | |
4684 | && GET_MODE (XEXP (XVECEXP (pat, 0, 0), 0)) == BLKmode) | |
008c057d | 4685 | return compute_clrmem_length (insn) - 4; |
58e17b0b | 4686 | /* Conditional branch with an unfilled delay slot. */ |
5fbd5940 | 4687 | else if (GET_CODE (insn) == JUMP_INSN && ! simplejump_p (insn)) |
4688 | { | |
4689 | /* Adjust a short backwards conditional with an unfilled delay slot. */ | |
4690 | if (GET_CODE (pat) == SET | |
5a1231ef | 4691 | && length == 4 |
5fbd5940 | 4692 | && ! forward_branch_p (insn)) |
5a1231ef | 4693 | return 4; |
546a40bd | 4694 | else if (GET_CODE (pat) == PARALLEL |
4695 | && get_attr_type (insn) == TYPE_PARALLEL_BRANCH | |
4696 | && length == 4) | |
4697 | return 4; | |
5fbd5940 | 4698 | /* Adjust dbra insn with short backwards conditional branch with |
6d36483b | 4699 | unfilled delay slot -- only for case where counter is in a |
6dc3b0d9 | 4700 | general register register. */ |
5fbd5940 | 4701 | else if (GET_CODE (pat) == PARALLEL |
4702 | && GET_CODE (XVECEXP (pat, 0, 1)) == SET | |
4703 | && GET_CODE (XEXP (XVECEXP (pat, 0, 1), 0)) == REG | |
6d36483b | 4704 | && ! FP_REG_P (XEXP (XVECEXP (pat, 0, 1), 0)) |
5a1231ef | 4705 | && length == 4 |
5fbd5940 | 4706 | && ! forward_branch_p (insn)) |
5a1231ef | 4707 | return 4; |
5fbd5940 | 4708 | else |
4709 | return 0; | |
4710 | } | |
546a40bd | 4711 | return 0; |
58e17b0b | 4712 | } |
4713 | ||
87ad11b0 | 4714 | /* Print operand X (an rtx) in assembler syntax to file FILE. |
4715 | CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified. | |
4716 | For `%' followed by punctuation, CODE is the punctuation and X is null. */ | |
4717 | ||
4718 | void | |
5c1d8983 | 4719 | print_operand (FILE *file, rtx x, int code) |
87ad11b0 | 4720 | { |
4721 | switch (code) | |
4722 | { | |
4723 | case '#': | |
4724 | /* Output a 'nop' if there's nothing for the delay slot. */ | |
4725 | if (dbr_sequence_length () == 0) | |
4726 | fputs ("\n\tnop", file); | |
4727 | return; | |
4728 | case '*': | |
87fcb603 | 4729 | /* Output a nullification completer if there's nothing for the */ |
6d36483b | 4730 | /* delay slot or nullification is requested. */ |
87ad11b0 | 4731 | if (dbr_sequence_length () == 0 || |
4732 | (final_sequence && | |
4733 | INSN_ANNULLED_BRANCH_P (XVECEXP (final_sequence, 0, 0)))) | |
4734 | fputs (",n", file); | |
4735 | return; | |
4736 | case 'R': | |
4737 | /* Print out the second register name of a register pair. | |
4738 | I.e., R (6) => 7. */ | |
ea52c577 | 4739 | fputs (reg_names[REGNO (x) + 1], file); |
87ad11b0 | 4740 | return; |
4741 | case 'r': | |
6dc3b0d9 | 4742 | /* A register or zero. */ |
891b55b4 | 4743 | if (x == const0_rtx |
4744 | || (x == CONST0_RTX (DFmode)) | |
4745 | || (x == CONST0_RTX (SFmode))) | |
87ad11b0 | 4746 | { |
c6ae275c | 4747 | fputs ("%r0", file); |
4748 | return; | |
4749 | } | |
4750 | else | |
4751 | break; | |
4752 | case 'f': | |
6dc3b0d9 | 4753 | /* A register or zero (floating point). */ |
c6ae275c | 4754 | if (x == const0_rtx |
4755 | || (x == CONST0_RTX (DFmode)) | |
4756 | || (x == CONST0_RTX (SFmode))) | |
4757 | { | |
4758 | fputs ("%fr0", file); | |
87ad11b0 | 4759 | return; |
4760 | } | |
4761 | else | |
4762 | break; | |
2d14b1f0 | 4763 | case 'A': |
4764 | { | |
4765 | rtx xoperands[2]; | |
4766 | ||
4767 | xoperands[0] = XEXP (XEXP (x, 0), 0); | |
4768 | xoperands[1] = XVECEXP (XEXP (XEXP (x, 0), 1), 0, 0); | |
4769 | output_global_address (file, xoperands[1], 0); | |
4770 | fprintf (file, "(%s)", reg_names [REGNO (xoperands[0])]); | |
4771 | return; | |
4772 | } | |
4773 | ||
c8975385 | 4774 | case 'C': /* Plain (C)ondition */ |
87ad11b0 | 4775 | case 'X': |
4776 | switch (GET_CODE (x)) | |
6d36483b | 4777 | { |
87ad11b0 | 4778 | case EQ: |
9c0ac0fd | 4779 | fputs ("=", file); break; |
87ad11b0 | 4780 | case NE: |
9c0ac0fd | 4781 | fputs ("<>", file); break; |
87ad11b0 | 4782 | case GT: |
9c0ac0fd | 4783 | fputs (">", file); break; |
87ad11b0 | 4784 | case GE: |
9c0ac0fd | 4785 | fputs (">=", file); break; |
87ad11b0 | 4786 | case GEU: |
9c0ac0fd | 4787 | fputs (">>=", file); break; |
87ad11b0 | 4788 | case GTU: |
9c0ac0fd | 4789 | fputs (">>", file); break; |
87ad11b0 | 4790 | case LT: |
9c0ac0fd | 4791 | fputs ("<", file); break; |
87ad11b0 | 4792 | case LE: |
9c0ac0fd | 4793 | fputs ("<=", file); break; |
87ad11b0 | 4794 | case LEU: |
9c0ac0fd | 4795 | fputs ("<<=", file); break; |
87ad11b0 | 4796 | case LTU: |
9c0ac0fd | 4797 | fputs ("<<", file); break; |
87ad11b0 | 4798 | default: |
ecf2283d | 4799 | gcc_unreachable (); |
87ad11b0 | 4800 | } |
4801 | return; | |
c8975385 | 4802 | case 'N': /* Condition, (N)egated */ |
87ad11b0 | 4803 | switch (GET_CODE (x)) |
4804 | { | |
4805 | case EQ: | |
9c0ac0fd | 4806 | fputs ("<>", file); break; |
87ad11b0 | 4807 | case NE: |
9c0ac0fd | 4808 | fputs ("=", file); break; |
87ad11b0 | 4809 | case GT: |
9c0ac0fd | 4810 | fputs ("<=", file); break; |
87ad11b0 | 4811 | case GE: |
9c0ac0fd | 4812 | fputs ("<", file); break; |
87ad11b0 | 4813 | case GEU: |
9c0ac0fd | 4814 | fputs ("<<", file); break; |
87ad11b0 | 4815 | case GTU: |
9c0ac0fd | 4816 | fputs ("<<=", file); break; |
87ad11b0 | 4817 | case LT: |
9c0ac0fd | 4818 | fputs (">=", file); break; |
87ad11b0 | 4819 | case LE: |
9c0ac0fd | 4820 | fputs (">", file); break; |
87ad11b0 | 4821 | case LEU: |
9c0ac0fd | 4822 | fputs (">>", file); break; |
87ad11b0 | 4823 | case LTU: |
9c0ac0fd | 4824 | fputs (">>=", file); break; |
87ad11b0 | 4825 | default: |
ecf2283d | 4826 | gcc_unreachable (); |
87ad11b0 | 4827 | } |
4828 | return; | |
ea52c577 | 4829 | /* For floating point comparisons. Note that the output |
321c1598 | 4830 | predicates are the complement of the desired mode. The |
4831 | conditions for GT, GE, LT, LE and LTGT cause an invalid | |
4832 | operation exception if the result is unordered and this | |
4833 | exception is enabled in the floating-point status register. */ | |
61230bc9 | 4834 | case 'Y': |
4835 | switch (GET_CODE (x)) | |
4836 | { | |
4837 | case EQ: | |
9c0ac0fd | 4838 | fputs ("!=", file); break; |
61230bc9 | 4839 | case NE: |
9c0ac0fd | 4840 | fputs ("=", file); break; |
61230bc9 | 4841 | case GT: |
32509e56 | 4842 | fputs ("!>", file); break; |
61230bc9 | 4843 | case GE: |
32509e56 | 4844 | fputs ("!>=", file); break; |
61230bc9 | 4845 | case LT: |
32509e56 | 4846 | fputs ("!<", file); break; |
61230bc9 | 4847 | case LE: |
32509e56 | 4848 | fputs ("!<=", file); break; |
4849 | case LTGT: | |
4850 | fputs ("!<>", file); break; | |
4851 | case UNLE: | |
321c1598 | 4852 | fputs ("!?<=", file); break; |
32509e56 | 4853 | case UNLT: |
321c1598 | 4854 | fputs ("!?<", file); break; |
32509e56 | 4855 | case UNGE: |
321c1598 | 4856 | fputs ("!?>=", file); break; |
32509e56 | 4857 | case UNGT: |
321c1598 | 4858 | fputs ("!?>", file); break; |
32509e56 | 4859 | case UNEQ: |
321c1598 | 4860 | fputs ("!?=", file); break; |
32509e56 | 4861 | case UNORDERED: |
321c1598 | 4862 | fputs ("!?", file); break; |
32509e56 | 4863 | case ORDERED: |
321c1598 | 4864 | fputs ("?", file); break; |
61230bc9 | 4865 | default: |
ecf2283d | 4866 | gcc_unreachable (); |
61230bc9 | 4867 | } |
4868 | return; | |
c8975385 | 4869 | case 'S': /* Condition, operands are (S)wapped. */ |
4870 | switch (GET_CODE (x)) | |
4871 | { | |
4872 | case EQ: | |
9c0ac0fd | 4873 | fputs ("=", file); break; |
c8975385 | 4874 | case NE: |
9c0ac0fd | 4875 | fputs ("<>", file); break; |
c8975385 | 4876 | case GT: |
9c0ac0fd | 4877 | fputs ("<", file); break; |
c8975385 | 4878 | case GE: |
9c0ac0fd | 4879 | fputs ("<=", file); break; |
c8975385 | 4880 | case GEU: |
9c0ac0fd | 4881 | fputs ("<<=", file); break; |
c8975385 | 4882 | case GTU: |
9c0ac0fd | 4883 | fputs ("<<", file); break; |
c8975385 | 4884 | case LT: |
9c0ac0fd | 4885 | fputs (">", file); break; |
c8975385 | 4886 | case LE: |
9c0ac0fd | 4887 | fputs (">=", file); break; |
c8975385 | 4888 | case LEU: |
9c0ac0fd | 4889 | fputs (">>=", file); break; |
c8975385 | 4890 | case LTU: |
9c0ac0fd | 4891 | fputs (">>", file); break; |
c8975385 | 4892 | default: |
ecf2283d | 4893 | gcc_unreachable (); |
6d36483b | 4894 | } |
c8975385 | 4895 | return; |
4896 | case 'B': /* Condition, (B)oth swapped and negate. */ | |
4897 | switch (GET_CODE (x)) | |
4898 | { | |
4899 | case EQ: | |
9c0ac0fd | 4900 | fputs ("<>", file); break; |
c8975385 | 4901 | case NE: |
9c0ac0fd | 4902 | fputs ("=", file); break; |
c8975385 | 4903 | case GT: |
9c0ac0fd | 4904 | fputs (">=", file); break; |
c8975385 | 4905 | case GE: |
9c0ac0fd | 4906 | fputs (">", file); break; |
c8975385 | 4907 | case GEU: |
9c0ac0fd | 4908 | fputs (">>", file); break; |
c8975385 | 4909 | case GTU: |
9c0ac0fd | 4910 | fputs (">>=", file); break; |
c8975385 | 4911 | case LT: |
9c0ac0fd | 4912 | fputs ("<=", file); break; |
c8975385 | 4913 | case LE: |
9c0ac0fd | 4914 | fputs ("<", file); break; |
c8975385 | 4915 | case LEU: |
9c0ac0fd | 4916 | fputs ("<<", file); break; |
c8975385 | 4917 | case LTU: |
9c0ac0fd | 4918 | fputs ("<<=", file); break; |
c8975385 | 4919 | default: |
ecf2283d | 4920 | gcc_unreachable (); |
6d36483b | 4921 | } |
c8975385 | 4922 | return; |
4923 | case 'k': | |
ecf2283d | 4924 | gcc_assert (GET_CODE (x) == CONST_INT); |
4925 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, ~INTVAL (x)); | |
4926 | return; | |
5e3c5739 | 4927 | case 'Q': |
ecf2283d | 4928 | gcc_assert (GET_CODE (x) == CONST_INT); |
4929 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, 64 - (INTVAL (x) & 63)); | |
4930 | return; | |
e5965947 | 4931 | case 'L': |
ecf2283d | 4932 | gcc_assert (GET_CODE (x) == CONST_INT); |
4933 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, 32 - (INTVAL (x) & 31)); | |
4934 | return; | |
3a16146d | 4935 | case 'O': |
ecf2283d | 4936 | gcc_assert (GET_CODE (x) == CONST_INT && exact_log2 (INTVAL (x)) >= 0); |
4937 | fprintf (file, "%d", exact_log2 (INTVAL (x))); | |
4938 | return; | |
5e3c5739 | 4939 | case 'p': |
ecf2283d | 4940 | gcc_assert (GET_CODE (x) == CONST_INT); |
4941 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, 63 - (INTVAL (x) & 63)); | |
4942 | return; | |
e5965947 | 4943 | case 'P': |
ecf2283d | 4944 | gcc_assert (GET_CODE (x) == CONST_INT); |
4945 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, 31 - (INTVAL (x) & 31)); | |
4946 | return; | |
c8975385 | 4947 | case 'I': |
4948 | if (GET_CODE (x) == CONST_INT) | |
4949 | fputs ("i", file); | |
4950 | return; | |
87ad11b0 | 4951 | case 'M': |
27ef382d | 4952 | case 'F': |
87ad11b0 | 4953 | switch (GET_CODE (XEXP (x, 0))) |
4954 | { | |
4955 | case PRE_DEC: | |
4956 | case PRE_INC: | |
e4065f95 | 4957 | if (ASSEMBLER_DIALECT == 0) |
4958 | fputs ("s,mb", file); | |
4959 | else | |
4960 | fputs (",mb", file); | |
87ad11b0 | 4961 | break; |
4962 | case POST_DEC: | |
4963 | case POST_INC: | |
e4065f95 | 4964 | if (ASSEMBLER_DIALECT == 0) |
4965 | fputs ("s,ma", file); | |
4966 | else | |
4967 | fputs (",ma", file); | |
87ad11b0 | 4968 | break; |
27ef382d | 4969 | case PLUS: |
dbd3d89d | 4970 | if (GET_CODE (XEXP (XEXP (x, 0), 0)) == REG |
4971 | && GET_CODE (XEXP (XEXP (x, 0), 1)) == REG) | |
4972 | { | |
4973 | if (ASSEMBLER_DIALECT == 0) | |
4974 | fputs ("x", file); | |
4975 | } | |
4976 | else if (GET_CODE (XEXP (XEXP (x, 0), 0)) == MULT | |
4977 | || GET_CODE (XEXP (XEXP (x, 0), 1)) == MULT) | |
e4065f95 | 4978 | { |
4979 | if (ASSEMBLER_DIALECT == 0) | |
4980 | fputs ("x,s", file); | |
4981 | else | |
4982 | fputs (",s", file); | |
4983 | } | |
4984 | else if (code == 'F' && ASSEMBLER_DIALECT == 0) | |
27ef382d | 4985 | fputs ("s", file); |
87ad11b0 | 4986 | break; |
4987 | default: | |
e4065f95 | 4988 | if (code == 'F' && ASSEMBLER_DIALECT == 0) |
27ef382d | 4989 | fputs ("s", file); |
87ad11b0 | 4990 | break; |
4991 | } | |
4992 | return; | |
4993 | case 'G': | |
f9333726 | 4994 | output_global_address (file, x, 0); |
4995 | return; | |
4996 | case 'H': | |
4997 | output_global_address (file, x, 1); | |
87ad11b0 | 4998 | return; |
4999 | case 0: /* Don't do anything special */ | |
5000 | break; | |
42faba01 | 5001 | case 'Z': |
5002 | { | |
5003 | unsigned op[3]; | |
fb22aedc | 5004 | compute_zdepwi_operands (INTVAL (x), op); |
42faba01 | 5005 | fprintf (file, "%d,%d,%d", op[0], op[1], op[2]); |
5006 | return; | |
5007 | } | |
5e3c5739 | 5008 | case 'z': |
5009 | { | |
5010 | unsigned op[3]; | |
5011 | compute_zdepdi_operands (INTVAL (x), op); | |
5012 | fprintf (file, "%d,%d,%d", op[0], op[1], op[2]); | |
5013 | return; | |
5014 | } | |
c9cc98e1 | 5015 | case 'c': |
5016 | /* We can get here from a .vtable_inherit due to our | |
5017 | CONSTANT_ADDRESS_P rejecting perfectly good constant | |
5018 | addresses. */ | |
5019 | break; | |
87ad11b0 | 5020 | default: |
ecf2283d | 5021 | gcc_unreachable (); |
87ad11b0 | 5022 | } |
5023 | if (GET_CODE (x) == REG) | |
df0651dc | 5024 | { |
35661368 | 5025 | fputs (reg_names [REGNO (x)], file); |
5e3c5739 | 5026 | if (TARGET_64BIT && FP_REG_P (x) && GET_MODE_SIZE (GET_MODE (x)) <= 4) |
5027 | { | |
5028 | fputs ("R", file); | |
5029 | return; | |
5030 | } | |
5031 | if (FP_REG_P (x) | |
5032 | && GET_MODE_SIZE (GET_MODE (x)) <= 4 | |
5033 | && (REGNO (x) & 1) == 0) | |
35661368 | 5034 | fputs ("L", file); |
df0651dc | 5035 | } |
87ad11b0 | 5036 | else if (GET_CODE (x) == MEM) |
5037 | { | |
5038 | int size = GET_MODE_SIZE (GET_MODE (x)); | |
f7dff90d | 5039 | rtx base = NULL_RTX; |
87ad11b0 | 5040 | switch (GET_CODE (XEXP (x, 0))) |
5041 | { | |
5042 | case PRE_DEC: | |
5043 | case POST_DEC: | |
5e3c5739 | 5044 | base = XEXP (XEXP (x, 0), 0); |
34940871 | 5045 | fprintf (file, "-%d(%s)", size, reg_names [REGNO (base)]); |
87ad11b0 | 5046 | break; |
5047 | case PRE_INC: | |
5048 | case POST_INC: | |
5e3c5739 | 5049 | base = XEXP (XEXP (x, 0), 0); |
34940871 | 5050 | fprintf (file, "%d(%s)", size, reg_names [REGNO (base)]); |
87ad11b0 | 5051 | break; |
dbd3d89d | 5052 | case PLUS: |
5053 | if (GET_CODE (XEXP (XEXP (x, 0), 0)) == MULT) | |
34940871 | 5054 | fprintf (file, "%s(%s)", |
27ef382d | 5055 | reg_names [REGNO (XEXP (XEXP (XEXP (x, 0), 0), 0))], |
5056 | reg_names [REGNO (XEXP (XEXP (x, 0), 1))]); | |
dbd3d89d | 5057 | else if (GET_CODE (XEXP (XEXP (x, 0), 1)) == MULT) |
34940871 | 5058 | fprintf (file, "%s(%s)", |
27ef382d | 5059 | reg_names [REGNO (XEXP (XEXP (XEXP (x, 0), 1), 0))], |
5060 | reg_names [REGNO (XEXP (XEXP (x, 0), 0))]); | |
dbd3d89d | 5061 | else if (GET_CODE (XEXP (XEXP (x, 0), 0)) == REG |
5062 | && GET_CODE (XEXP (XEXP (x, 0), 1)) == REG) | |
5063 | { | |
5064 | /* Because the REG_POINTER flag can get lost during reload, | |
5065 | GO_IF_LEGITIMATE_ADDRESS canonicalizes the order of the | |
5066 | index and base registers in the combined move patterns. */ | |
5067 | rtx base = XEXP (XEXP (x, 0), 1); | |
5068 | rtx index = XEXP (XEXP (x, 0), 0); | |
5069 | ||
5070 | fprintf (file, "%s(%s)", | |
5071 | reg_names [REGNO (index)], reg_names [REGNO (base)]); | |
5072 | } | |
27ef382d | 5073 | else |
5074 | output_address (XEXP (x, 0)); | |
87ad11b0 | 5075 | break; |
dbd3d89d | 5076 | default: |
5077 | output_address (XEXP (x, 0)); | |
5078 | break; | |
87ad11b0 | 5079 | } |
5080 | } | |
87ad11b0 | 5081 | else |
5082 | output_addr_const (file, x); | |
5083 | } | |
5084 | ||
6dc3b0d9 | 5085 | /* output a SYMBOL_REF or a CONST expression involving a SYMBOL_REF. */ |
87ad11b0 | 5086 | |
5087 | void | |
5c1d8983 | 5088 | output_global_address (FILE *file, rtx x, int round_constant) |
87ad11b0 | 5089 | { |
2ee034bc | 5090 | |
5091 | /* Imagine (high (const (plus ...))). */ | |
5092 | if (GET_CODE (x) == HIGH) | |
5093 | x = XEXP (x, 0); | |
5094 | ||
611a88e1 | 5095 | if (GET_CODE (x) == SYMBOL_REF && read_only_operand (x, VOIDmode)) |
5f43b4f6 | 5096 | output_addr_const (file, x); |
b4a7bf10 | 5097 | else if (GET_CODE (x) == SYMBOL_REF && !flag_pic) |
87ad11b0 | 5098 | { |
5f43b4f6 | 5099 | output_addr_const (file, x); |
9c0ac0fd | 5100 | fputs ("-$global$", file); |
87ad11b0 | 5101 | } |
5102 | else if (GET_CODE (x) == CONST) | |
5103 | { | |
611a88e1 | 5104 | const char *sep = ""; |
87ad11b0 | 5105 | int offset = 0; /* assembler wants -$global$ at end */ |
33ae0dba | 5106 | rtx base = NULL_RTX; |
6d36483b | 5107 | |
ecf2283d | 5108 | switch (GET_CODE (XEXP (XEXP (x, 0), 0))) |
87ad11b0 | 5109 | { |
ecf2283d | 5110 | case SYMBOL_REF: |
87ad11b0 | 5111 | base = XEXP (XEXP (x, 0), 0); |
5112 | output_addr_const (file, base); | |
ecf2283d | 5113 | break; |
5114 | case CONST_INT: | |
5115 | offset = INTVAL (XEXP (XEXP (x, 0), 0)); | |
5116 | break; | |
5117 | default: | |
5118 | gcc_unreachable (); | |
87ad11b0 | 5119 | } |
87ad11b0 | 5120 | |
ecf2283d | 5121 | switch (GET_CODE (XEXP (XEXP (x, 0), 1))) |
87ad11b0 | 5122 | { |
ecf2283d | 5123 | case SYMBOL_REF: |
87ad11b0 | 5124 | base = XEXP (XEXP (x, 0), 1); |
5125 | output_addr_const (file, base); | |
ecf2283d | 5126 | break; |
5127 | case CONST_INT: | |
5128 | offset = INTVAL (XEXP (XEXP (x, 0), 1)); | |
5129 | break; | |
5130 | default: | |
5131 | gcc_unreachable (); | |
87ad11b0 | 5132 | } |
87ad11b0 | 5133 | |
f9333726 | 5134 | /* How bogus. The compiler is apparently responsible for |
5135 | rounding the constant if it uses an LR field selector. | |
5136 | ||
5137 | The linker and/or assembler seem a better place since | |
5138 | they have to do this kind of thing already. | |
5139 | ||
5140 | If we fail to do this, HP's optimizing linker may eliminate | |
5141 | an addil, but not update the ldw/stw/ldo instruction that | |
5142 | uses the result of the addil. */ | |
5143 | if (round_constant) | |
5144 | offset = ((offset + 0x1000) & ~0x1fff); | |
5145 | ||
ecf2283d | 5146 | switch (GET_CODE (XEXP (x, 0))) |
87ad11b0 | 5147 | { |
ecf2283d | 5148 | case PLUS: |
87ad11b0 | 5149 | if (offset < 0) |
5150 | { | |
5151 | offset = -offset; | |
5152 | sep = "-"; | |
5153 | } | |
5154 | else | |
5155 | sep = "+"; | |
ecf2283d | 5156 | break; |
5157 | ||
5158 | case MINUS: | |
5159 | gcc_assert (GET_CODE (XEXP (XEXP (x, 0), 0)) == SYMBOL_REF); | |
5160 | sep = "-"; | |
5161 | break; | |
87ad11b0 | 5162 | |
ecf2283d | 5163 | default: |
5164 | gcc_unreachable (); | |
5165 | } | |
5166 | ||
611a88e1 | 5167 | if (!read_only_operand (base, VOIDmode) && !flag_pic) |
9c0ac0fd | 5168 | fputs ("-$global$", file); |
f9333726 | 5169 | if (offset) |
ea52c577 | 5170 | fprintf (file, "%s%d", sep, offset); |
87ad11b0 | 5171 | } |
5172 | else | |
5173 | output_addr_const (file, x); | |
5174 | } | |
5175 | ||
92c473b8 | 5176 | /* Output boilerplate text to appear at the beginning of the file. |
5177 | There are several possible versions. */ | |
5178 | #define aputs(x) fputs(x, asm_out_file) | |
5179 | static inline void | |
5c1d8983 | 5180 | pa_file_start_level (void) |
92c473b8 | 5181 | { |
5182 | if (TARGET_64BIT) | |
5183 | aputs ("\t.LEVEL 2.0w\n"); | |
5184 | else if (TARGET_PA_20) | |
5185 | aputs ("\t.LEVEL 2.0\n"); | |
5186 | else if (TARGET_PA_11) | |
5187 | aputs ("\t.LEVEL 1.1\n"); | |
5188 | else | |
5189 | aputs ("\t.LEVEL 1.0\n"); | |
5190 | } | |
5191 | ||
5192 | static inline void | |
5c1d8983 | 5193 | pa_file_start_space (int sortspace) |
92c473b8 | 5194 | { |
5195 | aputs ("\t.SPACE $PRIVATE$"); | |
5196 | if (sortspace) | |
5197 | aputs (",SORT=16"); | |
5198 | aputs ("\n\t.SUBSPA $DATA$,QUAD=1,ALIGN=8,ACCESS=31" | |
5199 | "\n\t.SUBSPA $BSS$,QUAD=1,ALIGN=8,ACCESS=31,ZERO,SORT=82" | |
5200 | "\n\t.SPACE $TEXT$"); | |
5201 | if (sortspace) | |
5202 | aputs (",SORT=8"); | |
5203 | aputs ("\n\t.SUBSPA $LIT$,QUAD=0,ALIGN=8,ACCESS=44" | |
5204 | "\n\t.SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=44,CODE_ONLY\n"); | |
5205 | } | |
5206 | ||
5207 | static inline void | |
5c1d8983 | 5208 | pa_file_start_file (int want_version) |
92c473b8 | 5209 | { |
5210 | if (write_symbols != NO_DEBUG) | |
5211 | { | |
5212 | output_file_directive (asm_out_file, main_input_filename); | |
5213 | if (want_version) | |
5214 | aputs ("\t.version\t\"01.01\"\n"); | |
5215 | } | |
5216 | } | |
5217 | ||
5218 | static inline void | |
5c1d8983 | 5219 | pa_file_start_mcount (const char *aswhat) |
92c473b8 | 5220 | { |
5221 | if (profile_flag) | |
5222 | fprintf (asm_out_file, "\t.IMPORT _mcount,%s\n", aswhat); | |
5223 | } | |
5224 | ||
5225 | static void | |
5c1d8983 | 5226 | pa_elf_file_start (void) |
92c473b8 | 5227 | { |
5228 | pa_file_start_level (); | |
5229 | pa_file_start_mcount ("ENTRY"); | |
5230 | pa_file_start_file (0); | |
5231 | } | |
5232 | ||
5233 | static void | |
5c1d8983 | 5234 | pa_som_file_start (void) |
92c473b8 | 5235 | { |
5236 | pa_file_start_level (); | |
5237 | pa_file_start_space (0); | |
5238 | aputs ("\t.IMPORT $global$,DATA\n" | |
5239 | "\t.IMPORT $$dyncall,MILLICODE\n"); | |
5240 | pa_file_start_mcount ("CODE"); | |
5241 | pa_file_start_file (0); | |
5242 | } | |
5243 | ||
5244 | static void | |
5c1d8983 | 5245 | pa_linux_file_start (void) |
92c473b8 | 5246 | { |
5247 | pa_file_start_file (1); | |
5248 | pa_file_start_level (); | |
5249 | pa_file_start_mcount ("CODE"); | |
5250 | } | |
5251 | ||
5252 | static void | |
5c1d8983 | 5253 | pa_hpux64_gas_file_start (void) |
92c473b8 | 5254 | { |
5255 | pa_file_start_level (); | |
5256 | #ifdef ASM_OUTPUT_TYPE_DIRECTIVE | |
5257 | if (profile_flag) | |
5258 | ASM_OUTPUT_TYPE_DIRECTIVE (asm_out_file, "_mcount", "function"); | |
5259 | #endif | |
5260 | pa_file_start_file (1); | |
5261 | } | |
5262 | ||
5263 | static void | |
5c1d8983 | 5264 | pa_hpux64_hpas_file_start (void) |
92c473b8 | 5265 | { |
5266 | pa_file_start_level (); | |
5267 | pa_file_start_space (1); | |
5268 | pa_file_start_mcount ("CODE"); | |
5269 | pa_file_start_file (0); | |
5270 | } | |
5271 | #undef aputs | |
5272 | ||
4e75439e | 5273 | /* Search the deferred plabel list for SYMBOL and return its internal |
5274 | label. If an entry for SYMBOL is not found, a new entry is created. */ | |
5275 | ||
5276 | rtx | |
5277 | get_deferred_plabel (rtx symbol) | |
ece88821 | 5278 | { |
5f43b4f6 | 5279 | const char *fname = XSTR (symbol, 0); |
ece88821 | 5280 | size_t i; |
5281 | ||
5282 | /* See if we have already put this function on the list of deferred | |
5283 | plabels. This list is generally small, so a liner search is not | |
5284 | too ugly. If it proves too slow replace it with something faster. */ | |
5285 | for (i = 0; i < n_deferred_plabels; i++) | |
5f43b4f6 | 5286 | if (strcmp (fname, XSTR (deferred_plabels[i].symbol, 0)) == 0) |
ece88821 | 5287 | break; |
5288 | ||
5289 | /* If the deferred plabel list is empty, or this entry was not found | |
5290 | on the list, create a new entry on the list. */ | |
5291 | if (deferred_plabels == NULL || i == n_deferred_plabels) | |
5292 | { | |
5f43b4f6 | 5293 | tree id; |
5294 | ||
ece88821 | 5295 | if (deferred_plabels == 0) |
5296 | deferred_plabels = (struct deferred_plabel *) | |
5297 | ggc_alloc (sizeof (struct deferred_plabel)); | |
5298 | else | |
5299 | deferred_plabels = (struct deferred_plabel *) | |
5300 | ggc_realloc (deferred_plabels, | |
5301 | ((n_deferred_plabels + 1) | |
5302 | * sizeof (struct deferred_plabel))); | |
5303 | ||
5304 | i = n_deferred_plabels++; | |
5305 | deferred_plabels[i].internal_label = gen_label_rtx (); | |
5f43b4f6 | 5306 | deferred_plabels[i].symbol = symbol; |
ece88821 | 5307 | |
5f43b4f6 | 5308 | /* Gross. We have just implicitly taken the address of this |
5309 | function. Mark it in the same manner as assemble_name. */ | |
5310 | id = maybe_get_identifier (targetm.strip_name_encoding (fname)); | |
5311 | if (id) | |
5312 | mark_referenced (id); | |
ece88821 | 5313 | } |
5314 | ||
4e75439e | 5315 | return deferred_plabels[i].internal_label; |
ece88821 | 5316 | } |
5317 | ||
f6940372 | 5318 | static void |
5c1d8983 | 5319 | output_deferred_plabels (void) |
5cc6b2bc | 5320 | { |
e11bd7e5 | 5321 | size_t i; |
78962d38 | 5322 | |
5323 | /* If we have some deferred plabels, then we need to switch into the | |
5324 | data or readonly data section, and align it to a 4 byte boundary | |
191ec5a2 | 5325 | before outputting the deferred plabels. */ |
5cc6b2bc | 5326 | if (n_deferred_plabels) |
5327 | { | |
78962d38 | 5328 | switch_to_section (flag_pic ? data_section : readonly_data_section); |
f6940372 | 5329 | ASM_OUTPUT_ALIGN (asm_out_file, TARGET_64BIT ? 3 : 2); |
5cc6b2bc | 5330 | } |
5331 | ||
5332 | /* Now output the deferred plabels. */ | |
5333 | for (i = 0; i < n_deferred_plabels; i++) | |
5334 | { | |
f6940372 | 5335 | (*targetm.asm_out.internal_label) (asm_out_file, "L", |
5336 | CODE_LABEL_NUMBER (deferred_plabels[i].internal_label)); | |
5f43b4f6 | 5337 | assemble_integer (deferred_plabels[i].symbol, |
b70ea764 | 5338 | TARGET_64BIT ? 8 : 4, TARGET_64BIT ? 64 : 32, 1); |
5cc6b2bc | 5339 | } |
5340 | } | |
5341 | ||
f2f543a3 | 5342 | #ifdef HPUX_LONG_DOUBLE_LIBRARY |
5343 | /* Initialize optabs to point to HPUX long double emulation routines. */ | |
5344 | static void | |
5345 | pa_hpux_init_libfuncs (void) | |
5346 | { | |
5347 | set_optab_libfunc (add_optab, TFmode, "_U_Qfadd"); | |
5348 | set_optab_libfunc (sub_optab, TFmode, "_U_Qfsub"); | |
5349 | set_optab_libfunc (smul_optab, TFmode, "_U_Qfmpy"); | |
5350 | set_optab_libfunc (sdiv_optab, TFmode, "_U_Qfdiv"); | |
5351 | set_optab_libfunc (smin_optab, TFmode, "_U_Qmin"); | |
5352 | set_optab_libfunc (smax_optab, TFmode, "_U_Qfmax"); | |
5353 | set_optab_libfunc (sqrt_optab, TFmode, "_U_Qfsqrt"); | |
5354 | set_optab_libfunc (abs_optab, TFmode, "_U_Qfabs"); | |
5355 | set_optab_libfunc (neg_optab, TFmode, "_U_Qfneg"); | |
5356 | ||
c88a6ebd | 5357 | set_optab_libfunc (eq_optab, TFmode, "_U_Qfeq"); |
5358 | set_optab_libfunc (ne_optab, TFmode, "_U_Qfne"); | |
5359 | set_optab_libfunc (gt_optab, TFmode, "_U_Qfgt"); | |
5360 | set_optab_libfunc (ge_optab, TFmode, "_U_Qfge"); | |
5361 | set_optab_libfunc (lt_optab, TFmode, "_U_Qflt"); | |
5362 | set_optab_libfunc (le_optab, TFmode, "_U_Qfle"); | |
6b27baea | 5363 | set_optab_libfunc (unord_optab, TFmode, "_U_Qfunord"); |
f2f543a3 | 5364 | |
a7cc195f | 5365 | set_conv_libfunc (sext_optab, TFmode, SFmode, "_U_Qfcnvff_sgl_to_quad"); |
5366 | set_conv_libfunc (sext_optab, TFmode, DFmode, "_U_Qfcnvff_dbl_to_quad"); | |
5367 | set_conv_libfunc (trunc_optab, SFmode, TFmode, "_U_Qfcnvff_quad_to_sgl"); | |
5368 | set_conv_libfunc (trunc_optab, DFmode, TFmode, "_U_Qfcnvff_quad_to_dbl"); | |
5369 | ||
5370 | set_conv_libfunc (sfix_optab, SImode, TFmode, TARGET_64BIT | |
5371 | ? "__U_Qfcnvfxt_quad_to_sgl" | |
5372 | : "_U_Qfcnvfxt_quad_to_sgl"); | |
5373 | set_conv_libfunc (sfix_optab, DImode, TFmode, "_U_Qfcnvfxt_quad_to_dbl"); | |
5374 | set_conv_libfunc (ufix_optab, SImode, TFmode, "_U_Qfcnvfxt_quad_to_usgl"); | |
5375 | set_conv_libfunc (ufix_optab, DImode, TFmode, "_U_Qfcnvfxt_quad_to_udbl"); | |
5376 | ||
5377 | set_conv_libfunc (sfloat_optab, TFmode, SImode, "_U_Qfcnvxf_sgl_to_quad"); | |
5378 | set_conv_libfunc (sfloat_optab, TFmode, DImode, "_U_Qfcnvxf_dbl_to_quad"); | |
3e647485 | 5379 | set_conv_libfunc (ufloat_optab, TFmode, SImode, "_U_Qfcnvxf_usgl_to_quad"); |
5380 | set_conv_libfunc (ufloat_optab, TFmode, DImode, "_U_Qfcnvxf_udbl_to_quad"); | |
f2f543a3 | 5381 | } |
5382 | #endif | |
5383 | ||
87ad11b0 | 5384 | /* HP's millicode routines mean something special to the assembler. |
5385 | Keep track of which ones we have used. */ | |
5386 | ||
c2271c34 | 5387 | enum millicodes { remI, remU, divI, divU, mulI, end1000 }; |
5c1d8983 | 5388 | static void import_milli (enum millicodes); |
ea52c577 | 5389 | static char imported[(int) end1000]; |
c2271c34 | 5390 | static const char * const milli_names[] = {"remI", "remU", "divI", "divU", "mulI"}; |
e99c3a1d | 5391 | static const char import_string[] = ".IMPORT $$....,MILLICODE"; |
87ad11b0 | 5392 | #define MILLI_START 10 |
5393 | ||
57ed30e5 | 5394 | static void |
5c1d8983 | 5395 | import_milli (enum millicodes code) |
87ad11b0 | 5396 | { |
5397 | char str[sizeof (import_string)]; | |
6d36483b | 5398 | |
ea52c577 | 5399 | if (!imported[(int) code]) |
87ad11b0 | 5400 | { |
ea52c577 | 5401 | imported[(int) code] = 1; |
87ad11b0 | 5402 | strcpy (str, import_string); |
ea52c577 | 5403 | strncpy (str + MILLI_START, milli_names[(int) code], 4); |
87ad11b0 | 5404 | output_asm_insn (str, 0); |
5405 | } | |
5406 | } | |
5407 | ||
6d36483b | 5408 | /* The register constraints have put the operands and return value in |
6dc3b0d9 | 5409 | the proper registers. */ |
87ad11b0 | 5410 | |
611a88e1 | 5411 | const char * |
5c1d8983 | 5412 | output_mul_insn (int unsignedp ATTRIBUTE_UNUSED, rtx insn) |
87ad11b0 | 5413 | { |
d178f670 | 5414 | import_milli (mulI); |
440c23df | 5415 | return output_millicode_call (insn, gen_rtx_SYMBOL_REF (Pmode, "$$mulI")); |
87ad11b0 | 5416 | } |
5417 | ||
6dc3b0d9 | 5418 | /* Emit the rtl for doing a division by a constant. */ |
87ad11b0 | 5419 | |
d178f670 | 5420 | /* Do magic division millicodes exist for this value? */ |
913de4b4 | 5421 | const int magic_milli[]= {0, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1}; |
87ad11b0 | 5422 | |
6d36483b | 5423 | /* We'll use an array to keep track of the magic millicodes and |
87ad11b0 | 5424 | whether or not we've used them already. [n][0] is signed, [n][1] is |
6dc3b0d9 | 5425 | unsigned. */ |
87ad11b0 | 5426 | |
87ad11b0 | 5427 | static int div_milli[16][2]; |
5428 | ||
87ad11b0 | 5429 | int |
5c1d8983 | 5430 | emit_hpdiv_const (rtx *operands, int unsignedp) |
87ad11b0 | 5431 | { |
5432 | if (GET_CODE (operands[2]) == CONST_INT | |
5433 | && INTVAL (operands[2]) > 0 | |
5434 | && INTVAL (operands[2]) < 16 | |
5435 | && magic_milli[INTVAL (operands[2])]) | |
5436 | { | |
2013ddf6 | 5437 | rtx ret = gen_rtx_REG (SImode, TARGET_64BIT ? 2 : 31); |
5438 | ||
ad851752 | 5439 | emit_move_insn (gen_rtx_REG (SImode, 26), operands[1]); |
87ad11b0 | 5440 | emit |
75b1a41a | 5441 | (gen_rtx_PARALLEL |
5442 | (VOIDmode, | |
c2078db8 | 5443 | gen_rtvec (6, gen_rtx_SET (VOIDmode, gen_rtx_REG (SImode, 29), |
ad851752 | 5444 | gen_rtx_fmt_ee (unsignedp ? UDIV : DIV, |
5445 | SImode, | |
5446 | gen_rtx_REG (SImode, 26), | |
5447 | operands[2])), | |
c2078db8 | 5448 | gen_rtx_CLOBBER (VOIDmode, operands[4]), |
ad851752 | 5449 | gen_rtx_CLOBBER (VOIDmode, operands[3]), |
5450 | gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (SImode, 26)), | |
5451 | gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (SImode, 25)), | |
2013ddf6 | 5452 | gen_rtx_CLOBBER (VOIDmode, ret)))); |
ad851752 | 5453 | emit_move_insn (operands[0], gen_rtx_REG (SImode, 29)); |
87ad11b0 | 5454 | return 1; |
5455 | } | |
5456 | return 0; | |
5457 | } | |
5458 | ||
611a88e1 | 5459 | const char * |
5c1d8983 | 5460 | output_div_insn (rtx *operands, int unsignedp, rtx insn) |
87ad11b0 | 5461 | { |
5462 | int divisor; | |
6d36483b | 5463 | |
5464 | /* If the divisor is a constant, try to use one of the special | |
87ad11b0 | 5465 | opcodes .*/ |
5466 | if (GET_CODE (operands[0]) == CONST_INT) | |
5467 | { | |
d6686e21 | 5468 | static char buf[100]; |
87ad11b0 | 5469 | divisor = INTVAL (operands[0]); |
5470 | if (!div_milli[divisor][unsignedp]) | |
5471 | { | |
d6686e21 | 5472 | div_milli[divisor][unsignedp] = 1; |
87ad11b0 | 5473 | if (unsignedp) |
5474 | output_asm_insn (".IMPORT $$divU_%0,MILLICODE", operands); | |
5475 | else | |
5476 | output_asm_insn (".IMPORT $$divI_%0,MILLICODE", operands); | |
87ad11b0 | 5477 | } |
5478 | if (unsignedp) | |
d6686e21 | 5479 | { |
4840a03a | 5480 | sprintf (buf, "$$divU_" HOST_WIDE_INT_PRINT_DEC, |
5481 | INTVAL (operands[0])); | |
c7a4e712 | 5482 | return output_millicode_call (insn, |
ad851752 | 5483 | gen_rtx_SYMBOL_REF (SImode, buf)); |
d6686e21 | 5484 | } |
5485 | else | |
5486 | { | |
4840a03a | 5487 | sprintf (buf, "$$divI_" HOST_WIDE_INT_PRINT_DEC, |
5488 | INTVAL (operands[0])); | |
c7a4e712 | 5489 | return output_millicode_call (insn, |
ad851752 | 5490 | gen_rtx_SYMBOL_REF (SImode, buf)); |
d6686e21 | 5491 | } |
87ad11b0 | 5492 | } |
6dc3b0d9 | 5493 | /* Divisor isn't a special constant. */ |
87ad11b0 | 5494 | else |
5495 | { | |
5496 | if (unsignedp) | |
5497 | { | |
5498 | import_milli (divU); | |
c7a4e712 | 5499 | return output_millicode_call (insn, |
ad851752 | 5500 | gen_rtx_SYMBOL_REF (SImode, "$$divU")); |
87ad11b0 | 5501 | } |
5502 | else | |
5503 | { | |
5504 | import_milli (divI); | |
c7a4e712 | 5505 | return output_millicode_call (insn, |
ad851752 | 5506 | gen_rtx_SYMBOL_REF (SImode, "$$divI")); |
87ad11b0 | 5507 | } |
5508 | } | |
5509 | } | |
5510 | ||
6dc3b0d9 | 5511 | /* Output a $$rem millicode to do mod. */ |
87ad11b0 | 5512 | |
611a88e1 | 5513 | const char * |
5c1d8983 | 5514 | output_mod_insn (int unsignedp, rtx insn) |
87ad11b0 | 5515 | { |
5516 | if (unsignedp) | |
5517 | { | |
5518 | import_milli (remU); | |
c7a4e712 | 5519 | return output_millicode_call (insn, |
ad851752 | 5520 | gen_rtx_SYMBOL_REF (SImode, "$$remU")); |
87ad11b0 | 5521 | } |
5522 | else | |
5523 | { | |
5524 | import_milli (remI); | |
c7a4e712 | 5525 | return output_millicode_call (insn, |
ad851752 | 5526 | gen_rtx_SYMBOL_REF (SImode, "$$remI")); |
87ad11b0 | 5527 | } |
5528 | } | |
5529 | ||
5530 | void | |
5c1d8983 | 5531 | output_arg_descriptor (rtx call_insn) |
87ad11b0 | 5532 | { |
611a88e1 | 5533 | const char *arg_regs[4]; |
87ad11b0 | 5534 | enum machine_mode arg_mode; |
df0651dc | 5535 | rtx link; |
87ad11b0 | 5536 | int i, output_flag = 0; |
5537 | int regno; | |
6d36483b | 5538 | |
5e3c5739 | 5539 | /* We neither need nor want argument location descriptors for the |
5d0619cc | 5540 | 64bit runtime environment or the ELF32 environment. */ |
5541 | if (TARGET_64BIT || TARGET_ELF32) | |
5e3c5739 | 5542 | return; |
5543 | ||
87ad11b0 | 5544 | for (i = 0; i < 4; i++) |
5545 | arg_regs[i] = 0; | |
5546 | ||
738176ab | 5547 | /* Specify explicitly that no argument relocations should take place |
5548 | if using the portable runtime calling conventions. */ | |
5549 | if (TARGET_PORTABLE_RUNTIME) | |
5550 | { | |
9c0ac0fd | 5551 | fputs ("\t.CALL ARGW0=NO,ARGW1=NO,ARGW2=NO,ARGW3=NO,RETVAL=NO\n", |
5552 | asm_out_file); | |
738176ab | 5553 | return; |
5554 | } | |
5555 | ||
ecf2283d | 5556 | gcc_assert (GET_CODE (call_insn) == CALL_INSN); |
5557 | for (link = CALL_INSN_FUNCTION_USAGE (call_insn); | |
5558 | link; link = XEXP (link, 1)) | |
87ad11b0 | 5559 | { |
df0651dc | 5560 | rtx use = XEXP (link, 0); |
c12afafd | 5561 | |
df0651dc | 5562 | if (! (GET_CODE (use) == USE |
5563 | && GET_CODE (XEXP (use, 0)) == REG | |
5564 | && FUNCTION_ARG_REGNO_P (REGNO (XEXP (use, 0))))) | |
c12afafd | 5565 | continue; |
5566 | ||
df0651dc | 5567 | arg_mode = GET_MODE (XEXP (use, 0)); |
5568 | regno = REGNO (XEXP (use, 0)); | |
87ad11b0 | 5569 | if (regno >= 23 && regno <= 26) |
372ef038 | 5570 | { |
5571 | arg_regs[26 - regno] = "GR"; | |
5572 | if (arg_mode == DImode) | |
5573 | arg_regs[25 - regno] = "GR"; | |
5574 | } | |
df0651dc | 5575 | else if (regno >= 32 && regno <= 39) |
87ad11b0 | 5576 | { |
5577 | if (arg_mode == SFmode) | |
df0651dc | 5578 | arg_regs[(regno - 32) / 2] = "FR"; |
e6ba640e | 5579 | else |
87ad11b0 | 5580 | { |
eeec72c0 | 5581 | #ifndef HP_FP_ARG_DESCRIPTOR_REVERSED |
df0651dc | 5582 | arg_regs[(regno - 34) / 2] = "FR"; |
5583 | arg_regs[(regno - 34) / 2 + 1] = "FU"; | |
87ad11b0 | 5584 | #else |
df0651dc | 5585 | arg_regs[(regno - 34) / 2] = "FU"; |
5586 | arg_regs[(regno - 34) / 2 + 1] = "FR"; | |
87ad11b0 | 5587 | #endif |
5588 | } | |
87ad11b0 | 5589 | } |
5590 | } | |
5591 | fputs ("\t.CALL ", asm_out_file); | |
5592 | for (i = 0; i < 4; i++) | |
5593 | { | |
5594 | if (arg_regs[i]) | |
5595 | { | |
5596 | if (output_flag++) | |
5597 | fputc (',', asm_out_file); | |
5598 | fprintf (asm_out_file, "ARGW%d=%s", i, arg_regs[i]); | |
5599 | } | |
5600 | } | |
5601 | fputc ('\n', asm_out_file); | |
5602 | } | |
5603 | \f | |
5655a0e5 | 5604 | static enum reg_class |
5605 | pa_secondary_reload (bool in_p, rtx x, enum reg_class class, | |
5606 | enum machine_mode mode, secondary_reload_info *sri) | |
5607 | { | |
cca0fae1 | 5608 | int is_symbolic, regno; |
9c0ac0fd | 5609 | |
5655a0e5 | 5610 | /* Handle the easy stuff first. */ |
5611 | if (class == R1_REGS) | |
5612 | return NO_REGS; | |
9c0ac0fd | 5613 | |
5655a0e5 | 5614 | if (REG_P (x)) |
5615 | { | |
5616 | regno = REGNO (x); | |
5617 | if (class == BASE_REG_CLASS && regno < FIRST_PSEUDO_REGISTER) | |
5618 | return NO_REGS; | |
5619 | } | |
cca0fae1 | 5620 | else |
5621 | regno = -1; | |
87ad11b0 | 5622 | |
5655a0e5 | 5623 | /* If we have something like (mem (mem (...)), we can safely assume the |
5624 | inner MEM will end up in a general register after reloading, so there's | |
5625 | no need for a secondary reload. */ | |
5626 | if (GET_CODE (x) == MEM && GET_CODE (XEXP (x, 0)) == MEM) | |
5627 | return NO_REGS; | |
87ad11b0 | 5628 | |
b4a7bf10 | 5629 | /* Trying to load a constant into a FP register during PIC code |
5655a0e5 | 5630 | generation requires %r1 as a scratch register. */ |
fc44315f | 5631 | if (flag_pic |
9c0b6987 | 5632 | && (mode == SImode || mode == DImode) |
b4a7bf10 | 5633 | && FP_REG_CLASS_P (class) |
5655a0e5 | 5634 | && (GET_CODE (x) == CONST_INT || GET_CODE (x) == CONST_DOUBLE)) |
9c0ac0fd | 5635 | { |
5655a0e5 | 5636 | sri->icode = (mode == SImode ? CODE_FOR_reload_insi_r1 |
5637 | : CODE_FOR_reload_indi_r1); | |
5638 | return NO_REGS; | |
9c0ac0fd | 5639 | } |
9c0ac0fd | 5640 | |
5655a0e5 | 5641 | /* Profiling showed the PA port spends about 1.3% of its compilation |
5642 | time in true_regnum from calls inside pa_secondary_reload_class. */ | |
5643 | if (regno >= FIRST_PSEUDO_REGISTER || GET_CODE (x) == SUBREG) | |
5644 | regno = true_regnum (x); | |
76a0ced5 | 5645 | |
5646 | /* Handle out of range displacement for integer mode loads/stores of | |
5647 | FP registers. */ | |
d2498717 | 5648 | if (((regno >= FIRST_PSEUDO_REGISTER || regno == -1) |
6d36483b | 5649 | && GET_MODE_CLASS (mode) == MODE_INT |
5650 | && FP_REG_CLASS_P (class)) | |
d6f01525 | 5651 | || (class == SHIFT_REGS && (regno <= 0 || regno >= 32))) |
5655a0e5 | 5652 | { |
5653 | sri->icode = in_p ? reload_in_optab[mode] : reload_out_optab[mode]; | |
5654 | return NO_REGS; | |
5655 | } | |
d2c1d63d | 5656 | |
7c4b32f3 | 5657 | /* A SAR<->FP register copy requires a secondary register (GPR) as |
5658 | well as secondary memory. */ | |
5659 | if (regno >= 0 && regno < FIRST_PSEUDO_REGISTER | |
5660 | && ((REGNO_REG_CLASS (regno) == SHIFT_REGS && FP_REG_CLASS_P (class)) | |
5655a0e5 | 5661 | || (class == SHIFT_REGS |
5662 | && FP_REG_CLASS_P (REGNO_REG_CLASS (regno))))) | |
5663 | { | |
5664 | sri->icode = in_p ? reload_in_optab[mode] : reload_out_optab[mode]; | |
5665 | return NO_REGS; | |
5666 | } | |
7c4b32f3 | 5667 | |
5655a0e5 | 5668 | /* Secondary reloads of symbolic operands require %r1 as a scratch |
5669 | register when we're generating PIC code and the operand isn't | |
5670 | readonly. */ | |
5671 | if (GET_CODE (x) == HIGH) | |
5672 | x = XEXP (x, 0); | |
2ee034bc | 5673 | |
9c0ac0fd | 5674 | /* Profiling has showed GCC spends about 2.6% of its compilation |
51149d85 | 5675 | time in symbolic_operand from calls inside pa_secondary_reload_class. |
5655a0e5 | 5676 | So, we use an inline copy to avoid useless work. */ |
5677 | switch (GET_CODE (x)) | |
9c0ac0fd | 5678 | { |
5655a0e5 | 5679 | rtx op; |
9c0ac0fd | 5680 | |
5681 | case SYMBOL_REF: | |
5655a0e5 | 5682 | is_symbolic = !SYMBOL_REF_TLS_MODEL (x); |
5683 | break; | |
9c0ac0fd | 5684 | case LABEL_REF: |
5685 | is_symbolic = 1; | |
5686 | break; | |
5687 | case CONST: | |
5655a0e5 | 5688 | op = XEXP (x, 0); |
5689 | is_symbolic = (((GET_CODE (XEXP (op, 0)) == SYMBOL_REF | |
5690 | && !SYMBOL_REF_TLS_MODEL (XEXP (op, 0))) | |
5691 | || GET_CODE (XEXP (op, 0)) == LABEL_REF) | |
5692 | && GET_CODE (XEXP (op, 1)) == CONST_INT); | |
9c0ac0fd | 5693 | break; |
5694 | default: | |
5695 | is_symbolic = 0; | |
5696 | break; | |
5697 | } | |
9840d99d | 5698 | |
5655a0e5 | 5699 | if (is_symbolic && (flag_pic || !read_only_operand (x, VOIDmode))) |
5700 | { | |
5701 | gcc_assert (mode == SImode || mode == DImode); | |
5702 | sri->icode = (mode == SImode ? CODE_FOR_reload_insi_r1 | |
5703 | : CODE_FOR_reload_indi_r1); | |
5704 | } | |
2ee034bc | 5705 | |
d2c1d63d | 5706 | return NO_REGS; |
87ad11b0 | 5707 | } |
5708 | ||
b981d932 | 5709 | /* In the 32-bit runtime, arguments larger than eight bytes are passed |
5710 | by invisible reference. As a GCC extension, we also pass anything | |
5711 | with a zero or variable size by reference. | |
5712 | ||
5713 | The 64-bit runtime does not describe passing any types by invisible | |
5714 | reference. The internals of GCC can't currently handle passing | |
5715 | empty structures, and zero or variable length arrays when they are | |
5716 | not passed entirely on the stack or by reference. Thus, as a GCC | |
5717 | extension, we pass these types by reference. The HP compiler doesn't | |
5718 | support these types, so hopefully there shouldn't be any compatibility | |
5719 | issues. This may have to be revisited when HP releases a C99 compiler | |
5720 | or updates the ABI. */ | |
5721 | ||
5722 | static bool | |
5723 | pa_pass_by_reference (CUMULATIVE_ARGS *ca ATTRIBUTE_UNUSED, | |
5724 | enum machine_mode mode, tree type, | |
5725 | bool named ATTRIBUTE_UNUSED) | |
5726 | { | |
5727 | HOST_WIDE_INT size; | |
5728 | ||
5729 | if (type) | |
5730 | size = int_size_in_bytes (type); | |
5731 | else | |
5732 | size = GET_MODE_SIZE (mode); | |
5733 | ||
5734 | if (TARGET_64BIT) | |
5735 | return size <= 0; | |
5736 | else | |
5737 | return size <= 0 || size > 8; | |
5738 | } | |
5739 | ||
87ad11b0 | 5740 | enum direction |
5c1d8983 | 5741 | function_arg_padding (enum machine_mode mode, tree type) |
87ad11b0 | 5742 | { |
ac965869 | 5743 | if (mode == BLKmode |
5744 | || (TARGET_64BIT && type && AGGREGATE_TYPE_P (type))) | |
5745 | { | |
5746 | /* Return none if justification is not required. */ | |
5747 | if (type | |
5748 | && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST | |
5749 | && (int_size_in_bytes (type) * BITS_PER_UNIT) % PARM_BOUNDARY == 0) | |
5750 | return none; | |
5751 | ||
5752 | /* The directions set here are ignored when a BLKmode argument larger | |
5753 | than a word is placed in a register. Different code is used for | |
5754 | the stack and registers. This makes it difficult to have a | |
5755 | consistent data representation for both the stack and registers. | |
5756 | For both runtimes, the justification and padding for arguments on | |
5757 | the stack and in registers should be identical. */ | |
5758 | if (TARGET_64BIT) | |
5759 | /* The 64-bit runtime specifies left justification for aggregates. */ | |
5760 | return upward; | |
87ad11b0 | 5761 | else |
ac965869 | 5762 | /* The 32-bit runtime architecture specifies right justification. |
5763 | When the argument is passed on the stack, the argument is padded | |
5764 | with garbage on the left. The HP compiler pads with zeros. */ | |
5765 | return downward; | |
87ad11b0 | 5766 | } |
ac965869 | 5767 | |
5768 | if (GET_MODE_BITSIZE (mode) < PARM_BOUNDARY) | |
87ad11b0 | 5769 | return downward; |
87ad11b0 | 5770 | else |
5771 | return none; | |
5772 | } | |
5773 | ||
87ad11b0 | 5774 | \f |
55f54832 | 5775 | /* Do what is necessary for `va_start'. We look at the current function |
5776 | to determine if stdargs or varargs is used and fill in an initial | |
5777 | va_list. A pointer to this constructor is returned. */ | |
87ad11b0 | 5778 | |
b8debbe8 | 5779 | static rtx |
5c1d8983 | 5780 | hppa_builtin_saveregs (void) |
87ad11b0 | 5781 | { |
01251cbc | 5782 | rtx offset, dest; |
87ad11b0 | 5783 | tree fntype = TREE_TYPE (current_function_decl); |
5784 | int argadj = ((!(TYPE_ARG_TYPES (fntype) != 0 | |
5785 | && (TREE_VALUE (tree_last (TYPE_ARG_TYPES (fntype))) | |
5786 | != void_type_node))) | |
5787 | ? UNITS_PER_WORD : 0); | |
5788 | ||
5789 | if (argadj) | |
5790 | offset = plus_constant (current_function_arg_offset_rtx, argadj); | |
5791 | else | |
5792 | offset = current_function_arg_offset_rtx; | |
9c6d4825 | 5793 | |
5e3c5739 | 5794 | if (TARGET_64BIT) |
5795 | { | |
5796 | int i, off; | |
9840d99d | 5797 | |
5e3c5739 | 5798 | /* Adjust for varargs/stdarg differences. */ |
5799 | if (argadj) | |
5800 | offset = plus_constant (current_function_arg_offset_rtx, -argadj); | |
5801 | else | |
5802 | offset = current_function_arg_offset_rtx; | |
5803 | ||
5804 | /* We need to save %r26 .. %r19 inclusive starting at offset -64 | |
5805 | from the incoming arg pointer and growing to larger addresses. */ | |
5806 | for (i = 26, off = -64; i >= 19; i--, off += 8) | |
5807 | emit_move_insn (gen_rtx_MEM (word_mode, | |
5808 | plus_constant (arg_pointer_rtx, off)), | |
5809 | gen_rtx_REG (word_mode, i)); | |
5810 | ||
5811 | /* The incoming args pointer points just beyond the flushback area; | |
8ef587dc | 5812 | normally this is not a serious concern. However, when we are doing |
5e3c5739 | 5813 | varargs/stdargs we want to make the arg pointer point to the start |
5814 | of the incoming argument area. */ | |
5815 | emit_move_insn (virtual_incoming_args_rtx, | |
5816 | plus_constant (arg_pointer_rtx, -64)); | |
5817 | ||
5818 | /* Now return a pointer to the first anonymous argument. */ | |
5819 | return copy_to_reg (expand_binop (Pmode, add_optab, | |
5820 | virtual_incoming_args_rtx, | |
5821 | offset, 0, 0, OPTAB_LIB_WIDEN)); | |
5822 | } | |
5823 | ||
6dc3b0d9 | 5824 | /* Store general registers on the stack. */ |
ad851752 | 5825 | dest = gen_rtx_MEM (BLKmode, |
5826 | plus_constant (current_function_internal_arg_pointer, | |
5827 | -16)); | |
ab6ab77e | 5828 | set_mem_alias_set (dest, get_varargs_alias_set ()); |
2a631e19 | 5829 | set_mem_align (dest, BITS_PER_WORD); |
530178a9 | 5830 | move_block_from_reg (23, dest, 4); |
01251cbc | 5831 | |
76a0ced5 | 5832 | /* move_block_from_reg will emit code to store the argument registers |
5833 | individually as scalar stores. | |
5834 | ||
5835 | However, other insns may later load from the same addresses for | |
ad87de1e | 5836 | a structure load (passing a struct to a varargs routine). |
76a0ced5 | 5837 | |
5838 | The alias code assumes that such aliasing can never happen, so we | |
5839 | have to keep memory referencing insns from moving up beyond the | |
5840 | last argument register store. So we emit a blockage insn here. */ | |
5841 | emit_insn (gen_blockage ()); | |
5842 | ||
9c6d4825 | 5843 | return copy_to_reg (expand_binop (Pmode, add_optab, |
5844 | current_function_internal_arg_pointer, | |
5845 | offset, 0, 0, OPTAB_LIB_WIDEN)); | |
87ad11b0 | 5846 | } |
d6f01525 | 5847 | |
72899a61 | 5848 | void |
5c1d8983 | 5849 | hppa_va_start (tree valist, rtx nextarg) |
72899a61 | 5850 | { |
5851 | nextarg = expand_builtin_saveregs (); | |
7df226a2 | 5852 | std_expand_builtin_va_start (valist, nextarg); |
72899a61 | 5853 | } |
5854 | ||
4c33eb68 | 5855 | static tree |
5856 | hppa_gimplify_va_arg_expr (tree valist, tree type, tree *pre_p, tree *post_p) | |
72899a61 | 5857 | { |
5e3c5739 | 5858 | if (TARGET_64BIT) |
5859 | { | |
4c33eb68 | 5860 | /* Args grow upward. We can use the generic routines. */ |
bef380a4 | 5861 | return std_gimplify_va_arg_expr (valist, type, pre_p, post_p); |
72899a61 | 5862 | } |
ac965869 | 5863 | else /* !TARGET_64BIT */ |
72899a61 | 5864 | { |
4c33eb68 | 5865 | tree ptr = build_pointer_type (type); |
5866 | tree valist_type; | |
5867 | tree t, u; | |
5868 | unsigned int size, ofs; | |
bef380a4 | 5869 | bool indirect; |
72899a61 | 5870 | |
bef380a4 | 5871 | indirect = pass_by_reference (NULL, TYPE_MODE (type), type, 0); |
4c33eb68 | 5872 | if (indirect) |
ac965869 | 5873 | { |
4c33eb68 | 5874 | type = ptr; |
5875 | ptr = build_pointer_type (type); | |
72899a61 | 5876 | } |
4c33eb68 | 5877 | size = int_size_in_bytes (type); |
5878 | valist_type = TREE_TYPE (valist); | |
ac965869 | 5879 | |
4c33eb68 | 5880 | /* Args grow down. Not handled by generic routines. */ |
ac965869 | 5881 | |
4c33eb68 | 5882 | u = fold_convert (valist_type, size_in_bytes (type)); |
ed03eadb | 5883 | t = build2 (MINUS_EXPR, valist_type, valist, u); |
ac965869 | 5884 | |
4c33eb68 | 5885 | /* Copied from va-pa.h, but we probably don't need to align to |
5886 | word size, since we generate and preserve that invariant. */ | |
7016c612 | 5887 | u = build_int_cst (valist_type, (size > 4 ? -8 : -4)); |
ed03eadb | 5888 | t = build2 (BIT_AND_EXPR, valist_type, t, u); |
4c33eb68 | 5889 | |
33b1284b | 5890 | t = build2 (MODIFY_EXPR, valist_type, valist, t); |
72899a61 | 5891 | |
4c33eb68 | 5892 | ofs = (8 - size) % 4; |
5893 | if (ofs != 0) | |
5894 | { | |
5895 | u = fold_convert (valist_type, size_int (ofs)); | |
ed03eadb | 5896 | t = build2 (PLUS_EXPR, valist_type, t, u); |
ac965869 | 5897 | } |
72899a61 | 5898 | |
4c33eb68 | 5899 | t = fold_convert (ptr, t); |
063f5fdd | 5900 | t = build_va_arg_indirect_ref (t); |
72899a61 | 5901 | |
4c33eb68 | 5902 | if (indirect) |
063f5fdd | 5903 | t = build_va_arg_indirect_ref (t); |
72899a61 | 5904 | |
4c33eb68 | 5905 | return t; |
5906 | } | |
5907 | } | |
72899a61 | 5908 | |
2b1e7cc3 | 5909 | /* True if MODE is valid for the target. By "valid", we mean able to |
5910 | be manipulated in non-trivial ways. In particular, this means all | |
5911 | the arithmetic is supported. | |
5912 | ||
5913 | Currently, TImode is not valid as the HP 64-bit runtime documentation | |
5914 | doesn't document the alignment and calling conventions for this type. | |
5915 | Thus, we return false when PRECISION is 2 * BITS_PER_WORD and | |
5916 | 2 * BITS_PER_WORD isn't equal LONG_LONG_TYPE_SIZE. */ | |
5917 | ||
5918 | static bool | |
5919 | pa_scalar_mode_supported_p (enum machine_mode mode) | |
5920 | { | |
5921 | int precision = GET_MODE_PRECISION (mode); | |
5922 | ||
5923 | switch (GET_MODE_CLASS (mode)) | |
5924 | { | |
5925 | case MODE_PARTIAL_INT: | |
5926 | case MODE_INT: | |
5927 | if (precision == CHAR_TYPE_SIZE) | |
5928 | return true; | |
5929 | if (precision == SHORT_TYPE_SIZE) | |
5930 | return true; | |
5931 | if (precision == INT_TYPE_SIZE) | |
5932 | return true; | |
5933 | if (precision == LONG_TYPE_SIZE) | |
5934 | return true; | |
5935 | if (precision == LONG_LONG_TYPE_SIZE) | |
5936 | return true; | |
5937 | return false; | |
5938 | ||
5939 | case MODE_FLOAT: | |
5940 | if (precision == FLOAT_TYPE_SIZE) | |
5941 | return true; | |
5942 | if (precision == DOUBLE_TYPE_SIZE) | |
5943 | return true; | |
5944 | if (precision == LONG_DOUBLE_TYPE_SIZE) | |
5945 | return true; | |
5946 | return false; | |
5947 | ||
2af936a9 | 5948 | case MODE_DECIMAL_FLOAT: |
5949 | return false; | |
5950 | ||
2b1e7cc3 | 5951 | default: |
5952 | gcc_unreachable (); | |
5953 | } | |
5954 | } | |
5955 | ||
6d36483b | 5956 | /* This routine handles all the normal conditional branch sequences we |
5957 | might need to generate. It handles compare immediate vs compare | |
5958 | register, nullification of delay slots, varying length branches, | |
0d986529 | 5959 | negated branches, and all combinations of the above. It returns the |
6d36483b | 5960 | output appropriate to emit the branch corresponding to all given |
0d986529 | 5961 | parameters. */ |
5962 | ||
611a88e1 | 5963 | const char * |
f26036bb | 5964 | output_cbranch (rtx *operands, int negated, rtx insn) |
29a4502c | 5965 | { |
0d986529 | 5966 | static char buf[100]; |
5967 | int useskip = 0; | |
f26036bb | 5968 | int nullify = INSN_ANNULLED_BRANCH_P (insn); |
5969 | int length = get_attr_length (insn); | |
5970 | int xdelay; | |
0d986529 | 5971 | |
a361b456 | 5972 | /* A conditional branch to the following instruction (e.g. the delay slot) |
ece0fa59 | 5973 | is asking for a disaster. This can happen when not optimizing and |
5974 | when jump optimization fails. | |
29a4502c | 5975 | |
38efba6c | 5976 | While it is usually safe to emit nothing, this can fail if the |
5977 | preceding instruction is a nullified branch with an empty delay | |
5978 | slot and the same branch target as this branch. We could check | |
5979 | for this but jump optimization should eliminate nop jumps. It | |
5980 | is always safe to emit a nop. */ | |
ece0fa59 | 5981 | if (next_real_insn (JUMP_LABEL (insn)) == next_real_insn (insn)) |
5982 | return "nop"; | |
6d36483b | 5983 | |
22699a7e | 5984 | /* The doubleword form of the cmpib instruction doesn't have the LEU |
5985 | and GTU conditions while the cmpb instruction does. Since we accept | |
5986 | zero for cmpb, we must ensure that we use cmpb for the comparison. */ | |
5987 | if (GET_MODE (operands[1]) == DImode && operands[2] == const0_rtx) | |
5988 | operands[2] = gen_rtx_REG (DImode, 0); | |
d65b8df8 | 5989 | if (GET_MODE (operands[2]) == DImode && operands[1] == const0_rtx) |
5990 | operands[1] = gen_rtx_REG (DImode, 0); | |
22699a7e | 5991 | |
5fbd5940 | 5992 | /* If this is a long branch with its delay slot unfilled, set `nullify' |
5993 | as it can nullify the delay slot and save a nop. */ | |
5a1231ef | 5994 | if (length == 8 && dbr_sequence_length () == 0) |
5fbd5940 | 5995 | nullify = 1; |
5996 | ||
5997 | /* If this is a short forward conditional branch which did not get | |
5998 | its delay slot filled, the delay slot can still be nullified. */ | |
5a1231ef | 5999 | if (! nullify && length == 4 && dbr_sequence_length () == 0) |
5fbd5940 | 6000 | nullify = forward_branch_p (insn); |
6001 | ||
6d36483b | 6002 | /* A forward branch over a single nullified insn can be done with a |
0d986529 | 6003 | comclr instruction. This avoids a single cycle penalty due to |
6004 | mis-predicted branch if we fall through (branch not taken). */ | |
5a1231ef | 6005 | if (length == 4 |
5fbd5940 | 6006 | && next_real_insn (insn) != 0 |
5a1231ef | 6007 | && get_attr_length (next_real_insn (insn)) == 4 |
5fbd5940 | 6008 | && JUMP_LABEL (insn) == next_nonnote_insn (next_real_insn (insn)) |
0d986529 | 6009 | && nullify) |
6010 | useskip = 1; | |
6011 | ||
6012 | switch (length) | |
6013 | { | |
5fbd5940 | 6014 | /* All short conditional branches except backwards with an unfilled |
6015 | delay slot. */ | |
5a1231ef | 6016 | case 4: |
0d986529 | 6017 | if (useskip) |
e4065f95 | 6018 | strcpy (buf, "{com%I2clr,|cmp%I2clr,}"); |
0d986529 | 6019 | else |
e4065f95 | 6020 | strcpy (buf, "{com%I2b,|cmp%I2b,}"); |
5e3c5739 | 6021 | if (GET_MODE (operands[1]) == DImode) |
6022 | strcat (buf, "*"); | |
0d986529 | 6023 | if (negated) |
6024 | strcat (buf, "%B3"); | |
6025 | else | |
6026 | strcat (buf, "%S3"); | |
6027 | if (useskip) | |
5a811d43 | 6028 | strcat (buf, " %2,%r1,%%r0"); |
0d986529 | 6029 | else if (nullify) |
9e49be0e | 6030 | strcat (buf, ",n %2,%r1,%0"); |
6d36483b | 6031 | else |
9e49be0e | 6032 | strcat (buf, " %2,%r1,%0"); |
0d986529 | 6033 | break; |
6034 | ||
87fcb603 | 6035 | /* All long conditionals. Note a short backward branch with an |
5fbd5940 | 6036 | unfilled delay slot is treated just like a long backward branch |
6037 | with an unfilled delay slot. */ | |
5a1231ef | 6038 | case 8: |
5fbd5940 | 6039 | /* Handle weird backwards branch with a filled delay slot |
f26036bb | 6040 | which is nullified. */ |
5fbd5940 | 6041 | if (dbr_sequence_length () != 0 |
6042 | && ! forward_branch_p (insn) | |
6043 | && nullify) | |
6044 | { | |
e4065f95 | 6045 | strcpy (buf, "{com%I2b,|cmp%I2b,}"); |
5e3c5739 | 6046 | if (GET_MODE (operands[1]) == DImode) |
6047 | strcat (buf, "*"); | |
5fbd5940 | 6048 | if (negated) |
6049 | strcat (buf, "%S3"); | |
6050 | else | |
6051 | strcat (buf, "%B3"); | |
5a811d43 | 6052 | strcat (buf, ",n %2,%r1,.+12\n\tb %0"); |
5fbd5940 | 6053 | } |
43f0c1f2 | 6054 | /* Handle short backwards branch with an unfilled delay slot. |
6055 | Using a comb;nop rather than comiclr;bl saves 1 cycle for both | |
6056 | taken and untaken branches. */ | |
6057 | else if (dbr_sequence_length () == 0 | |
6058 | && ! forward_branch_p (insn) | |
47fc0706 | 6059 | && INSN_ADDRESSES_SET_P () |
6060 | && VAL_14_BITS_P (INSN_ADDRESSES (INSN_UID (JUMP_LABEL (insn))) | |
6061 | - INSN_ADDRESSES (INSN_UID (insn)) - 8)) | |
43f0c1f2 | 6062 | { |
e4065f95 | 6063 | strcpy (buf, "{com%I2b,|cmp%I2b,}"); |
5e3c5739 | 6064 | if (GET_MODE (operands[1]) == DImode) |
6065 | strcat (buf, "*"); | |
43f0c1f2 | 6066 | if (negated) |
9e49be0e | 6067 | strcat (buf, "%B3 %2,%r1,%0%#"); |
43f0c1f2 | 6068 | else |
9e49be0e | 6069 | strcat (buf, "%S3 %2,%r1,%0%#"); |
43f0c1f2 | 6070 | } |
0d986529 | 6071 | else |
5fbd5940 | 6072 | { |
e4065f95 | 6073 | strcpy (buf, "{com%I2clr,|cmp%I2clr,}"); |
5e3c5739 | 6074 | if (GET_MODE (operands[1]) == DImode) |
6075 | strcat (buf, "*"); | |
5fbd5940 | 6076 | if (negated) |
6077 | strcat (buf, "%S3"); | |
6078 | else | |
6079 | strcat (buf, "%B3"); | |
6080 | if (nullify) | |
5a811d43 | 6081 | strcat (buf, " %2,%r1,%%r0\n\tb,n %0"); |
5fbd5940 | 6082 | else |
5a811d43 | 6083 | strcat (buf, " %2,%r1,%%r0\n\tb %0"); |
5fbd5940 | 6084 | } |
0d986529 | 6085 | break; |
6086 | ||
f26036bb | 6087 | default: |
e9ec370e | 6088 | /* The reversed conditional branch must branch over one additional |
f26036bb | 6089 | instruction if the delay slot is filled and needs to be extracted |
6090 | by output_lbranch. If the delay slot is empty or this is a | |
6091 | nullified forward branch, the instruction after the reversed | |
6092 | condition branch must be nullified. */ | |
6093 | if (dbr_sequence_length () == 0 | |
6094 | || (nullify && forward_branch_p (insn))) | |
6095 | { | |
6096 | nullify = 1; | |
6097 | xdelay = 0; | |
6098 | operands[4] = GEN_INT (length); | |
6099 | } | |
6100 | else | |
6101 | { | |
6102 | xdelay = 1; | |
6103 | operands[4] = GEN_INT (length + 4); | |
6104 | } | |
c8a0e52b | 6105 | |
6106 | /* Create a reversed conditional branch which branches around | |
6107 | the following insns. */ | |
e9ec370e | 6108 | if (GET_MODE (operands[1]) != DImode) |
6109 | { | |
6110 | if (nullify) | |
6111 | { | |
6112 | if (negated) | |
6113 | strcpy (buf, | |
6114 | "{com%I2b,%S3,n %2,%r1,.+%4|cmp%I2b,%S3,n %2,%r1,.+%4}"); | |
6115 | else | |
6116 | strcpy (buf, | |
6117 | "{com%I2b,%B3,n %2,%r1,.+%4|cmp%I2b,%B3,n %2,%r1,.+%4}"); | |
6118 | } | |
6119 | else | |
6120 | { | |
6121 | if (negated) | |
6122 | strcpy (buf, | |
6123 | "{com%I2b,%S3 %2,%r1,.+%4|cmp%I2b,%S3 %2,%r1,.+%4}"); | |
6124 | else | |
6125 | strcpy (buf, | |
6126 | "{com%I2b,%B3 %2,%r1,.+%4|cmp%I2b,%B3 %2,%r1,.+%4}"); | |
6127 | } | |
6128 | } | |
c8a0e52b | 6129 | else |
5e3c5739 | 6130 | { |
e9ec370e | 6131 | if (nullify) |
6132 | { | |
6133 | if (negated) | |
6134 | strcpy (buf, | |
6135 | "{com%I2b,*%S3,n %2,%r1,.+%4|cmp%I2b,*%S3,n %2,%r1,.+%4}"); | |
6136 | else | |
6137 | strcpy (buf, | |
6138 | "{com%I2b,*%B3,n %2,%r1,.+%4|cmp%I2b,*%B3,n %2,%r1,.+%4}"); | |
6139 | } | |
5e3c5739 | 6140 | else |
e9ec370e | 6141 | { |
6142 | if (negated) | |
6143 | strcpy (buf, | |
6144 | "{com%I2b,*%S3 %2,%r1,.+%4|cmp%I2b,*%S3 %2,%r1,.+%4}"); | |
6145 | else | |
6146 | strcpy (buf, | |
6147 | "{com%I2b,*%B3 %2,%r1,.+%4|cmp%I2b,*%B3 %2,%r1,.+%4}"); | |
6148 | } | |
5e3c5739 | 6149 | } |
c8a0e52b | 6150 | |
f26036bb | 6151 | output_asm_insn (buf, operands); |
6152 | return output_lbranch (operands[0], insn, xdelay); | |
e9ec370e | 6153 | } |
6154 | return buf; | |
6155 | } | |
c8a0e52b | 6156 | |
f26036bb | 6157 | /* This routine handles output of long unconditional branches that |
6158 | exceed the maximum range of a simple branch instruction. Since | |
6159 | we don't have a register available for the branch, we save register | |
6160 | %r1 in the frame marker, load the branch destination DEST into %r1, | |
6161 | execute the branch, and restore %r1 in the delay slot of the branch. | |
6162 | ||
6163 | Since long branches may have an insn in the delay slot and the | |
6164 | delay slot is used to restore %r1, we in general need to extract | |
6165 | this insn and execute it before the branch. However, to facilitate | |
6166 | use of this function by conditional branches, we also provide an | |
6167 | option to not extract the delay insn so that it will be emitted | |
6168 | after the long branch. So, if there is an insn in the delay slot, | |
6169 | it is extracted if XDELAY is nonzero. | |
6170 | ||
6171 | The lengths of the various long-branch sequences are 20, 16 and 24 | |
6172 | bytes for the portable runtime, non-PIC and PIC cases, respectively. */ | |
c8a0e52b | 6173 | |
e9ec370e | 6174 | const char * |
f26036bb | 6175 | output_lbranch (rtx dest, rtx insn, int xdelay) |
e9ec370e | 6176 | { |
6177 | rtx xoperands[2]; | |
6178 | ||
6179 | xoperands[0] = dest; | |
c8a0e52b | 6180 | |
e9ec370e | 6181 | /* First, free up the delay slot. */ |
f26036bb | 6182 | if (xdelay && dbr_sequence_length () != 0) |
e9ec370e | 6183 | { |
6184 | /* We can't handle a jump in the delay slot. */ | |
ecf2283d | 6185 | gcc_assert (GET_CODE (NEXT_INSN (insn)) != JUMP_INSN); |
c8a0e52b | 6186 | |
e9ec370e | 6187 | final_scan_insn (NEXT_INSN (insn), asm_out_file, |
4bf029b0 | 6188 | optimize, 0, NULL); |
c8a0e52b | 6189 | |
e9ec370e | 6190 | /* Now delete the delay insn. */ |
6191 | PUT_CODE (NEXT_INSN (insn), NOTE); | |
6192 | NOTE_LINE_NUMBER (NEXT_INSN (insn)) = NOTE_INSN_DELETED; | |
6193 | NOTE_SOURCE_FILE (NEXT_INSN (insn)) = 0; | |
6194 | } | |
c8a0e52b | 6195 | |
e9ec370e | 6196 | /* Output an insn to save %r1. The runtime documentation doesn't |
6197 | specify whether the "Clean Up" slot in the callers frame can | |
6198 | be clobbered by the callee. It isn't copied by HP's builtin | |
6199 | alloca, so this suggests that it can be clobbered if necessary. | |
6200 | The "Static Link" location is copied by HP builtin alloca, so | |
6201 | we avoid using it. Using the cleanup slot might be a problem | |
6202 | if we have to interoperate with languages that pass cleanup | |
6203 | information. However, it should be possible to handle these | |
6204 | situations with GCC's asm feature. | |
6205 | ||
6206 | The "Current RP" slot is reserved for the called procedure, so | |
6207 | we try to use it when we don't have a frame of our own. It's | |
6208 | rather unlikely that we won't have a frame when we need to emit | |
6209 | a very long branch. | |
6210 | ||
6211 | Really the way to go long term is a register scavenger; goto | |
6212 | the target of the jump and find a register which we can use | |
6213 | as a scratch to hold the value in %r1. Then, we wouldn't have | |
6214 | to free up the delay slot or clobber a slot that may be needed | |
6215 | for other purposes. */ | |
6216 | if (TARGET_64BIT) | |
6217 | { | |
6218 | if (actual_fsize == 0 && !regs_ever_live[2]) | |
6219 | /* Use the return pointer slot in the frame marker. */ | |
6220 | output_asm_insn ("std %%r1,-16(%%r30)", xoperands); | |
6221 | else | |
6222 | /* Use the slot at -40 in the frame marker since HP builtin | |
6223 | alloca doesn't copy it. */ | |
6224 | output_asm_insn ("std %%r1,-40(%%r30)", xoperands); | |
6225 | } | |
6226 | else | |
6227 | { | |
6228 | if (actual_fsize == 0 && !regs_ever_live[2]) | |
6229 | /* Use the return pointer slot in the frame marker. */ | |
6230 | output_asm_insn ("stw %%r1,-20(%%r30)", xoperands); | |
6231 | else | |
6232 | /* Use the "Clean Up" slot in the frame marker. In GCC, | |
6233 | the only other use of this location is for copying a | |
6234 | floating point double argument from a floating-point | |
6235 | register to two general registers. The copy is done | |
19ee40ed | 6236 | as an "atomic" operation when outputting a call, so it |
e9ec370e | 6237 | won't interfere with our using the location here. */ |
6238 | output_asm_insn ("stw %%r1,-12(%%r30)", xoperands); | |
6239 | } | |
b70ea764 | 6240 | |
2247cc5f | 6241 | if (TARGET_PORTABLE_RUNTIME) |
6242 | { | |
6243 | output_asm_insn ("ldil L'%0,%%r1", xoperands); | |
6244 | output_asm_insn ("ldo R'%0(%%r1),%%r1", xoperands); | |
6245 | output_asm_insn ("bv %%r0(%%r1)", xoperands); | |
6246 | } | |
6247 | else if (flag_pic) | |
e9ec370e | 6248 | { |
6249 | output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands); | |
6250 | if (TARGET_SOM || !TARGET_GAS) | |
6251 | { | |
6252 | xoperands[1] = gen_label_rtx (); | |
6253 | output_asm_insn ("addil L'%l0-%l1,%%r1", xoperands); | |
6254 | (*targetm.asm_out.internal_label) (asm_out_file, "L", | |
6255 | CODE_LABEL_NUMBER (xoperands[1])); | |
6256 | output_asm_insn ("ldo R'%l0-%l1(%%r1),%%r1", xoperands); | |
c8a0e52b | 6257 | } |
e9ec370e | 6258 | else |
6259 | { | |
6260 | output_asm_insn ("addil L'%l0-$PIC_pcrel$0+4,%%r1", xoperands); | |
6261 | output_asm_insn ("ldo R'%l0-$PIC_pcrel$0+8(%%r1),%%r1", xoperands); | |
6262 | } | |
6263 | output_asm_insn ("bv %%r0(%%r1)", xoperands); | |
6264 | } | |
6265 | else | |
6266 | /* Now output a very long branch to the original target. */ | |
6267 | output_asm_insn ("ldil L'%l0,%%r1\n\tbe R'%l0(%%sr4,%%r1)", xoperands); | |
c8a0e52b | 6268 | |
e9ec370e | 6269 | /* Now restore the value of %r1 in the delay slot. */ |
6270 | if (TARGET_64BIT) | |
6271 | { | |
6272 | if (actual_fsize == 0 && !regs_ever_live[2]) | |
6273 | return "ldd -16(%%r30),%%r1"; | |
6274 | else | |
6275 | return "ldd -40(%%r30),%%r1"; | |
6276 | } | |
6277 | else | |
6278 | { | |
6279 | if (actual_fsize == 0 && !regs_ever_live[2]) | |
6280 | return "ldw -20(%%r30),%%r1"; | |
6281 | else | |
6282 | return "ldw -12(%%r30),%%r1"; | |
5fbd5940 | 6283 | } |
0d986529 | 6284 | } |
6285 | ||
6d36483b | 6286 | /* This routine handles all the branch-on-bit conditional branch sequences we |
0d986529 | 6287 | might need to generate. It handles nullification of delay slots, |
6288 | varying length branches, negated branches and all combinations of the | |
6289 | above. it returns the appropriate output template to emit the branch. */ | |
6290 | ||
611a88e1 | 6291 | const char * |
f26036bb | 6292 | output_bb (rtx *operands ATTRIBUTE_UNUSED, int negated, rtx insn, int which) |
29a4502c | 6293 | { |
0d986529 | 6294 | static char buf[100]; |
6295 | int useskip = 0; | |
f26036bb | 6296 | int nullify = INSN_ANNULLED_BRANCH_P (insn); |
6297 | int length = get_attr_length (insn); | |
6298 | int xdelay; | |
0d986529 | 6299 | |
a361b456 | 6300 | /* A conditional branch to the following instruction (e.g. the delay slot) is |
29a4502c | 6301 | asking for a disaster. I do not think this can happen as this pattern |
6d36483b | 6302 | is only used when optimizing; jump optimization should eliminate the |
29a4502c | 6303 | jump. But be prepared just in case. */ |
6d36483b | 6304 | |
ece0fa59 | 6305 | if (next_real_insn (JUMP_LABEL (insn)) == next_real_insn (insn)) |
6306 | return "nop"; | |
6d36483b | 6307 | |
5fbd5940 | 6308 | /* If this is a long branch with its delay slot unfilled, set `nullify' |
6309 | as it can nullify the delay slot and save a nop. */ | |
5a1231ef | 6310 | if (length == 8 && dbr_sequence_length () == 0) |
5fbd5940 | 6311 | nullify = 1; |
6312 | ||
6313 | /* If this is a short forward conditional branch which did not get | |
6314 | its delay slot filled, the delay slot can still be nullified. */ | |
5a1231ef | 6315 | if (! nullify && length == 4 && dbr_sequence_length () == 0) |
5fbd5940 | 6316 | nullify = forward_branch_p (insn); |
6317 | ||
6d36483b | 6318 | /* A forward branch over a single nullified insn can be done with a |
0d986529 | 6319 | extrs instruction. This avoids a single cycle penalty due to |
6320 | mis-predicted branch if we fall through (branch not taken). */ | |
6321 | ||
5a1231ef | 6322 | if (length == 4 |
5fbd5940 | 6323 | && next_real_insn (insn) != 0 |
5a1231ef | 6324 | && get_attr_length (next_real_insn (insn)) == 4 |
5fbd5940 | 6325 | && JUMP_LABEL (insn) == next_nonnote_insn (next_real_insn (insn)) |
0d986529 | 6326 | && nullify) |
6327 | useskip = 1; | |
6328 | ||
6329 | switch (length) | |
6330 | { | |
6331 | ||
5fbd5940 | 6332 | /* All short conditional branches except backwards with an unfilled |
6333 | delay slot. */ | |
5a1231ef | 6334 | case 4: |
0d986529 | 6335 | if (useskip) |
e4065f95 | 6336 | strcpy (buf, "{extrs,|extrw,s,}"); |
6d36483b | 6337 | else |
0d986529 | 6338 | strcpy (buf, "bb,"); |
5e3c5739 | 6339 | if (useskip && GET_MODE (operands[0]) == DImode) |
6340 | strcpy (buf, "extrd,s,*"); | |
6341 | else if (GET_MODE (operands[0]) == DImode) | |
6342 | strcpy (buf, "bb,*"); | |
0d986529 | 6343 | if ((which == 0 && negated) |
6344 | || (which == 1 && ! negated)) | |
6345 | strcat (buf, ">="); | |
6346 | else | |
6347 | strcat (buf, "<"); | |
6348 | if (useskip) | |
5a811d43 | 6349 | strcat (buf, " %0,%1,1,%%r0"); |
0d986529 | 6350 | else if (nullify && negated) |
6351 | strcat (buf, ",n %0,%1,%3"); | |
6352 | else if (nullify && ! negated) | |
6353 | strcat (buf, ",n %0,%1,%2"); | |
6354 | else if (! nullify && negated) | |
5fbd5940 | 6355 | strcat (buf, "%0,%1,%3"); |
0d986529 | 6356 | else if (! nullify && ! negated) |
5fbd5940 | 6357 | strcat (buf, " %0,%1,%2"); |
0d986529 | 6358 | break; |
6359 | ||
87fcb603 | 6360 | /* All long conditionals. Note a short backward branch with an |
5fbd5940 | 6361 | unfilled delay slot is treated just like a long backward branch |
6362 | with an unfilled delay slot. */ | |
5a1231ef | 6363 | case 8: |
5fbd5940 | 6364 | /* Handle weird backwards branch with a filled delay slot |
f26036bb | 6365 | which is nullified. */ |
5fbd5940 | 6366 | if (dbr_sequence_length () != 0 |
6367 | && ! forward_branch_p (insn) | |
6368 | && nullify) | |
6369 | { | |
6370 | strcpy (buf, "bb,"); | |
5e3c5739 | 6371 | if (GET_MODE (operands[0]) == DImode) |
6372 | strcat (buf, "*"); | |
5fbd5940 | 6373 | if ((which == 0 && negated) |
6374 | || (which == 1 && ! negated)) | |
6375 | strcat (buf, "<"); | |
6376 | else | |
6377 | strcat (buf, ">="); | |
6378 | if (negated) | |
5a811d43 | 6379 | strcat (buf, ",n %0,%1,.+12\n\tb %3"); |
5fbd5940 | 6380 | else |
5a811d43 | 6381 | strcat (buf, ",n %0,%1,.+12\n\tb %2"); |
5fbd5940 | 6382 | } |
43f0c1f2 | 6383 | /* Handle short backwards branch with an unfilled delay slot. |
6384 | Using a bb;nop rather than extrs;bl saves 1 cycle for both | |
6385 | taken and untaken branches. */ | |
6386 | else if (dbr_sequence_length () == 0 | |
6387 | && ! forward_branch_p (insn) | |
47fc0706 | 6388 | && INSN_ADDRESSES_SET_P () |
6389 | && VAL_14_BITS_P (INSN_ADDRESSES (INSN_UID (JUMP_LABEL (insn))) | |
6390 | - INSN_ADDRESSES (INSN_UID (insn)) - 8)) | |
43f0c1f2 | 6391 | { |
6392 | strcpy (buf, "bb,"); | |
5e3c5739 | 6393 | if (GET_MODE (operands[0]) == DImode) |
6394 | strcat (buf, "*"); | |
43f0c1f2 | 6395 | if ((which == 0 && negated) |
6396 | || (which == 1 && ! negated)) | |
6397 | strcat (buf, ">="); | |
6398 | else | |
6399 | strcat (buf, "<"); | |
6400 | if (negated) | |
6401 | strcat (buf, " %0,%1,%3%#"); | |
6402 | else | |
6403 | strcat (buf, " %0,%1,%2%#"); | |
6404 | } | |
0d986529 | 6405 | else |
5fbd5940 | 6406 | { |
5e3c5739 | 6407 | if (GET_MODE (operands[0]) == DImode) |
6408 | strcpy (buf, "extrd,s,*"); | |
f26036bb | 6409 | else |
6410 | strcpy (buf, "{extrs,|extrw,s,}"); | |
5fbd5940 | 6411 | if ((which == 0 && negated) |
6412 | || (which == 1 && ! negated)) | |
6413 | strcat (buf, "<"); | |
6414 | else | |
6415 | strcat (buf, ">="); | |
6416 | if (nullify && negated) | |
c6ae275c | 6417 | strcat (buf, " %0,%1,1,%%r0\n\tb,n %3"); |
5fbd5940 | 6418 | else if (nullify && ! negated) |
c6ae275c | 6419 | strcat (buf, " %0,%1,1,%%r0\n\tb,n %2"); |
5fbd5940 | 6420 | else if (negated) |
5a811d43 | 6421 | strcat (buf, " %0,%1,1,%%r0\n\tb %3"); |
6d36483b | 6422 | else |
5a811d43 | 6423 | strcat (buf, " %0,%1,1,%%r0\n\tb %2"); |
5fbd5940 | 6424 | } |
0d986529 | 6425 | break; |
6426 | ||
6427 | default: | |
f26036bb | 6428 | /* The reversed conditional branch must branch over one additional |
6429 | instruction if the delay slot is filled and needs to be extracted | |
6430 | by output_lbranch. If the delay slot is empty or this is a | |
6431 | nullified forward branch, the instruction after the reversed | |
6432 | condition branch must be nullified. */ | |
6433 | if (dbr_sequence_length () == 0 | |
6434 | || (nullify && forward_branch_p (insn))) | |
6435 | { | |
6436 | nullify = 1; | |
6437 | xdelay = 0; | |
d9e3874e | 6438 | operands[4] = GEN_INT (length); |
f26036bb | 6439 | } |
6440 | else | |
6441 | { | |
6442 | xdelay = 1; | |
d9e3874e | 6443 | operands[4] = GEN_INT (length + 4); |
f26036bb | 6444 | } |
6445 | ||
6446 | if (GET_MODE (operands[0]) == DImode) | |
d9e3874e | 6447 | strcpy (buf, "bb,*"); |
f26036bb | 6448 | else |
d9e3874e | 6449 | strcpy (buf, "bb,"); |
f26036bb | 6450 | if ((which == 0 && negated) |
6451 | || (which == 1 && !negated)) | |
d9e3874e | 6452 | strcat (buf, "<"); |
f26036bb | 6453 | else |
d9e3874e | 6454 | strcat (buf, ">="); |
f26036bb | 6455 | if (nullify) |
d9e3874e | 6456 | strcat (buf, ",n %0,%1,.+%4"); |
f26036bb | 6457 | else |
d9e3874e | 6458 | strcat (buf, " %0,%1,.+%4"); |
f26036bb | 6459 | output_asm_insn (buf, operands); |
6460 | return output_lbranch (negated ? operands[3] : operands[2], | |
6461 | insn, xdelay); | |
5fbd5940 | 6462 | } |
0d986529 | 6463 | return buf; |
6464 | } | |
6465 | ||
c7a4e712 | 6466 | /* This routine handles all the branch-on-variable-bit conditional branch |
6467 | sequences we might need to generate. It handles nullification of delay | |
6468 | slots, varying length branches, negated branches and all combinations | |
6469 | of the above. it returns the appropriate output template to emit the | |
6470 | branch. */ | |
6471 | ||
611a88e1 | 6472 | const char * |
f26036bb | 6473 | output_bvb (rtx *operands ATTRIBUTE_UNUSED, int negated, rtx insn, int which) |
c7a4e712 | 6474 | { |
6475 | static char buf[100]; | |
6476 | int useskip = 0; | |
f26036bb | 6477 | int nullify = INSN_ANNULLED_BRANCH_P (insn); |
6478 | int length = get_attr_length (insn); | |
6479 | int xdelay; | |
c7a4e712 | 6480 | |
a361b456 | 6481 | /* A conditional branch to the following instruction (e.g. the delay slot) is |
c7a4e712 | 6482 | asking for a disaster. I do not think this can happen as this pattern |
6483 | is only used when optimizing; jump optimization should eliminate the | |
6484 | jump. But be prepared just in case. */ | |
6485 | ||
ece0fa59 | 6486 | if (next_real_insn (JUMP_LABEL (insn)) == next_real_insn (insn)) |
6487 | return "nop"; | |
c7a4e712 | 6488 | |
6489 | /* If this is a long branch with its delay slot unfilled, set `nullify' | |
6490 | as it can nullify the delay slot and save a nop. */ | |
6491 | if (length == 8 && dbr_sequence_length () == 0) | |
6492 | nullify = 1; | |
6493 | ||
6494 | /* If this is a short forward conditional branch which did not get | |
6495 | its delay slot filled, the delay slot can still be nullified. */ | |
6496 | if (! nullify && length == 4 && dbr_sequence_length () == 0) | |
6497 | nullify = forward_branch_p (insn); | |
6498 | ||
6499 | /* A forward branch over a single nullified insn can be done with a | |
6500 | extrs instruction. This avoids a single cycle penalty due to | |
6501 | mis-predicted branch if we fall through (branch not taken). */ | |
6502 | ||
6503 | if (length == 4 | |
6504 | && next_real_insn (insn) != 0 | |
6505 | && get_attr_length (next_real_insn (insn)) == 4 | |
6506 | && JUMP_LABEL (insn) == next_nonnote_insn (next_real_insn (insn)) | |
6507 | && nullify) | |
6508 | useskip = 1; | |
6509 | ||
6510 | switch (length) | |
6511 | { | |
6512 | ||
6513 | /* All short conditional branches except backwards with an unfilled | |
6514 | delay slot. */ | |
6515 | case 4: | |
6516 | if (useskip) | |
e4065f95 | 6517 | strcpy (buf, "{vextrs,|extrw,s,}"); |
c7a4e712 | 6518 | else |
e4065f95 | 6519 | strcpy (buf, "{bvb,|bb,}"); |
5e3c5739 | 6520 | if (useskip && GET_MODE (operands[0]) == DImode) |
e75269fd | 6521 | strcpy (buf, "extrd,s,*"); |
5e3c5739 | 6522 | else if (GET_MODE (operands[0]) == DImode) |
6523 | strcpy (buf, "bb,*"); | |
c7a4e712 | 6524 | if ((which == 0 && negated) |
6525 | || (which == 1 && ! negated)) | |
6526 | strcat (buf, ">="); | |
6527 | else | |
6528 | strcat (buf, "<"); | |
6529 | if (useskip) | |
e4065f95 | 6530 | strcat (buf, "{ %0,1,%%r0| %0,%%sar,1,%%r0}"); |
c7a4e712 | 6531 | else if (nullify && negated) |
e4065f95 | 6532 | strcat (buf, "{,n %0,%3|,n %0,%%sar,%3}"); |
c7a4e712 | 6533 | else if (nullify && ! negated) |
e4065f95 | 6534 | strcat (buf, "{,n %0,%2|,n %0,%%sar,%2}"); |
c7a4e712 | 6535 | else if (! nullify && negated) |
e4065f95 | 6536 | strcat (buf, "{%0,%3|%0,%%sar,%3}"); |
c7a4e712 | 6537 | else if (! nullify && ! negated) |
e4065f95 | 6538 | strcat (buf, "{ %0,%2| %0,%%sar,%2}"); |
c7a4e712 | 6539 | break; |
6540 | ||
87fcb603 | 6541 | /* All long conditionals. Note a short backward branch with an |
c7a4e712 | 6542 | unfilled delay slot is treated just like a long backward branch |
6543 | with an unfilled delay slot. */ | |
6544 | case 8: | |
6545 | /* Handle weird backwards branch with a filled delay slot | |
f26036bb | 6546 | which is nullified. */ |
c7a4e712 | 6547 | if (dbr_sequence_length () != 0 |
6548 | && ! forward_branch_p (insn) | |
6549 | && nullify) | |
6550 | { | |
e4065f95 | 6551 | strcpy (buf, "{bvb,|bb,}"); |
5e3c5739 | 6552 | if (GET_MODE (operands[0]) == DImode) |
6553 | strcat (buf, "*"); | |
c7a4e712 | 6554 | if ((which == 0 && negated) |
6555 | || (which == 1 && ! negated)) | |
6556 | strcat (buf, "<"); | |
6557 | else | |
6558 | strcat (buf, ">="); | |
6559 | if (negated) | |
e4065f95 | 6560 | strcat (buf, "{,n %0,.+12\n\tb %3|,n %0,%%sar,.+12\n\tb %3}"); |
c7a4e712 | 6561 | else |
e4065f95 | 6562 | strcat (buf, "{,n %0,.+12\n\tb %2|,n %0,%%sar,.+12\n\tb %2}"); |
c7a4e712 | 6563 | } |
6564 | /* Handle short backwards branch with an unfilled delay slot. | |
6565 | Using a bb;nop rather than extrs;bl saves 1 cycle for both | |
6566 | taken and untaken branches. */ | |
6567 | else if (dbr_sequence_length () == 0 | |
6568 | && ! forward_branch_p (insn) | |
47fc0706 | 6569 | && INSN_ADDRESSES_SET_P () |
6570 | && VAL_14_BITS_P (INSN_ADDRESSES (INSN_UID (JUMP_LABEL (insn))) | |
6571 | - INSN_ADDRESSES (INSN_UID (insn)) - 8)) | |
c7a4e712 | 6572 | { |
e4065f95 | 6573 | strcpy (buf, "{bvb,|bb,}"); |
5e3c5739 | 6574 | if (GET_MODE (operands[0]) == DImode) |
6575 | strcat (buf, "*"); | |
c7a4e712 | 6576 | if ((which == 0 && negated) |
6577 | || (which == 1 && ! negated)) | |
6578 | strcat (buf, ">="); | |
6579 | else | |
6580 | strcat (buf, "<"); | |
6581 | if (negated) | |
e4065f95 | 6582 | strcat (buf, "{ %0,%3%#| %0,%%sar,%3%#}"); |
c7a4e712 | 6583 | else |
e4065f95 | 6584 | strcat (buf, "{ %0,%2%#| %0,%%sar,%2%#}"); |
c7a4e712 | 6585 | } |
6586 | else | |
6587 | { | |
e4065f95 | 6588 | strcpy (buf, "{vextrs,|extrw,s,}"); |
5e3c5739 | 6589 | if (GET_MODE (operands[0]) == DImode) |
6590 | strcpy (buf, "extrd,s,*"); | |
c7a4e712 | 6591 | if ((which == 0 && negated) |
6592 | || (which == 1 && ! negated)) | |
6593 | strcat (buf, "<"); | |
6594 | else | |
6595 | strcat (buf, ">="); | |
6596 | if (nullify && negated) | |
e4065f95 | 6597 | strcat (buf, "{ %0,1,%%r0\n\tb,n %3| %0,%%sar,1,%%r0\n\tb,n %3}"); |
c7a4e712 | 6598 | else if (nullify && ! negated) |
e4065f95 | 6599 | strcat (buf, "{ %0,1,%%r0\n\tb,n %2| %0,%%sar,1,%%r0\n\tb,n %2}"); |
c7a4e712 | 6600 | else if (negated) |
e4065f95 | 6601 | strcat (buf, "{ %0,1,%%r0\n\tb %3| %0,%%sar,1,%%r0\n\tb %3}"); |
c7a4e712 | 6602 | else |
e4065f95 | 6603 | strcat (buf, "{ %0,1,%%r0\n\tb %2| %0,%%sar,1,%%r0\n\tb %2}"); |
c7a4e712 | 6604 | } |
6605 | break; | |
6606 | ||
6607 | default: | |
f26036bb | 6608 | /* The reversed conditional branch must branch over one additional |
6609 | instruction if the delay slot is filled and needs to be extracted | |
6610 | by output_lbranch. If the delay slot is empty or this is a | |
6611 | nullified forward branch, the instruction after the reversed | |
6612 | condition branch must be nullified. */ | |
6613 | if (dbr_sequence_length () == 0 | |
6614 | || (nullify && forward_branch_p (insn))) | |
6615 | { | |
6616 | nullify = 1; | |
6617 | xdelay = 0; | |
d9e3874e | 6618 | operands[4] = GEN_INT (length); |
f26036bb | 6619 | } |
6620 | else | |
6621 | { | |
6622 | xdelay = 1; | |
d9e3874e | 6623 | operands[4] = GEN_INT (length + 4); |
f26036bb | 6624 | } |
6625 | ||
6626 | if (GET_MODE (operands[0]) == DImode) | |
d9e3874e | 6627 | strcpy (buf, "bb,*"); |
f26036bb | 6628 | else |
d9e3874e | 6629 | strcpy (buf, "{bvb,|bb,}"); |
f26036bb | 6630 | if ((which == 0 && negated) |
6631 | || (which == 1 && !negated)) | |
d9e3874e | 6632 | strcat (buf, "<"); |
f26036bb | 6633 | else |
d9e3874e | 6634 | strcat (buf, ">="); |
f26036bb | 6635 | if (nullify) |
d9e3874e | 6636 | strcat (buf, ",n {%0,.+%4|%0,%%sar,.+%4}"); |
f26036bb | 6637 | else |
d9e3874e | 6638 | strcat (buf, " {%0,.+%4|%0,%%sar,.+%4}"); |
f26036bb | 6639 | output_asm_insn (buf, operands); |
6640 | return output_lbranch (negated ? operands[3] : operands[2], | |
6641 | insn, xdelay); | |
c7a4e712 | 6642 | } |
6643 | return buf; | |
6644 | } | |
6645 | ||
29a4502c | 6646 | /* Return the output template for emitting a dbra type insn. |
6647 | ||
6648 | Note it may perform some output operations on its own before | |
6649 | returning the final output string. */ | |
611a88e1 | 6650 | const char * |
5c1d8983 | 6651 | output_dbra (rtx *operands, rtx insn, int which_alternative) |
29a4502c | 6652 | { |
f26036bb | 6653 | int length = get_attr_length (insn); |
29a4502c | 6654 | |
a361b456 | 6655 | /* A conditional branch to the following instruction (e.g. the delay slot) is |
29a4502c | 6656 | asking for a disaster. Be prepared! */ |
6657 | ||
ece0fa59 | 6658 | if (next_real_insn (JUMP_LABEL (insn)) == next_real_insn (insn)) |
29a4502c | 6659 | { |
6660 | if (which_alternative == 0) | |
6661 | return "ldo %1(%0),%0"; | |
6662 | else if (which_alternative == 1) | |
6663 | { | |
ea52c577 | 6664 | output_asm_insn ("{fstws|fstw} %0,-16(%%r30)", operands); |
6665 | output_asm_insn ("ldw -16(%%r30),%4", operands); | |
34940871 | 6666 | output_asm_insn ("ldo %1(%4),%4\n\tstw %4,-16(%%r30)", operands); |
e4065f95 | 6667 | return "{fldws|fldw} -16(%%r30),%0"; |
29a4502c | 6668 | } |
6669 | else | |
6670 | { | |
6671 | output_asm_insn ("ldw %0,%4", operands); | |
6672 | return "ldo %1(%4),%4\n\tstw %4,%0"; | |
6673 | } | |
6674 | } | |
6675 | ||
6676 | if (which_alternative == 0) | |
6677 | { | |
6678 | int nullify = INSN_ANNULLED_BRANCH_P (insn); | |
f26036bb | 6679 | int xdelay; |
29a4502c | 6680 | |
6681 | /* If this is a long branch with its delay slot unfilled, set `nullify' | |
6682 | as it can nullify the delay slot and save a nop. */ | |
5a1231ef | 6683 | if (length == 8 && dbr_sequence_length () == 0) |
29a4502c | 6684 | nullify = 1; |
6685 | ||
6686 | /* If this is a short forward conditional branch which did not get | |
6687 | its delay slot filled, the delay slot can still be nullified. */ | |
5a1231ef | 6688 | if (! nullify && length == 4 && dbr_sequence_length () == 0) |
29a4502c | 6689 | nullify = forward_branch_p (insn); |
6690 | ||
ecf2283d | 6691 | switch (length) |
29a4502c | 6692 | { |
ecf2283d | 6693 | case 4: |
6694 | if (nullify) | |
6695 | return "addib,%C2,n %1,%0,%3"; | |
6696 | else | |
6697 | return "addib,%C2 %1,%0,%3"; | |
6698 | ||
6699 | case 8: | |
6d36483b | 6700 | /* Handle weird backwards branch with a fulled delay slot |
29a4502c | 6701 | which is nullified. */ |
6702 | if (dbr_sequence_length () != 0 | |
6703 | && ! forward_branch_p (insn) | |
6704 | && nullify) | |
5a811d43 | 6705 | return "addib,%N2,n %1,%0,.+12\n\tb %3"; |
43f0c1f2 | 6706 | /* Handle short backwards branch with an unfilled delay slot. |
6707 | Using a addb;nop rather than addi;bl saves 1 cycle for both | |
6708 | taken and untaken branches. */ | |
6709 | else if (dbr_sequence_length () == 0 | |
6710 | && ! forward_branch_p (insn) | |
47fc0706 | 6711 | && INSN_ADDRESSES_SET_P () |
6712 | && VAL_14_BITS_P (INSN_ADDRESSES (INSN_UID (JUMP_LABEL (insn))) | |
6713 | - INSN_ADDRESSES (INSN_UID (insn)) - 8)) | |
43f0c1f2 | 6714 | return "addib,%C2 %1,%0,%3%#"; |
6d36483b | 6715 | |
6716 | /* Handle normal cases. */ | |
29a4502c | 6717 | if (nullify) |
5a811d43 | 6718 | return "addi,%N2 %1,%0,%0\n\tb,n %3"; |
29a4502c | 6719 | else |
5a811d43 | 6720 | return "addi,%N2 %1,%0,%0\n\tb %3"; |
ecf2283d | 6721 | |
6722 | default: | |
f26036bb | 6723 | /* The reversed conditional branch must branch over one additional |
6724 | instruction if the delay slot is filled and needs to be extracted | |
6725 | by output_lbranch. If the delay slot is empty or this is a | |
6726 | nullified forward branch, the instruction after the reversed | |
6727 | condition branch must be nullified. */ | |
6728 | if (dbr_sequence_length () == 0 | |
6729 | || (nullify && forward_branch_p (insn))) | |
6730 | { | |
6731 | nullify = 1; | |
6732 | xdelay = 0; | |
6733 | operands[4] = GEN_INT (length); | |
6734 | } | |
6735 | else | |
6736 | { | |
6737 | xdelay = 1; | |
6738 | operands[4] = GEN_INT (length + 4); | |
6739 | } | |
6740 | ||
6741 | if (nullify) | |
6742 | output_asm_insn ("addib,%N2,n %1,%0,.+%4", operands); | |
6743 | else | |
6744 | output_asm_insn ("addib,%N2 %1,%0,.+%4", operands); | |
6745 | ||
6746 | return output_lbranch (operands[3], insn, xdelay); | |
29a4502c | 6747 | } |
ecf2283d | 6748 | |
29a4502c | 6749 | } |
6750 | /* Deal with gross reload from FP register case. */ | |
6751 | else if (which_alternative == 1) | |
6752 | { | |
6753 | /* Move loop counter from FP register to MEM then into a GR, | |
6754 | increment the GR, store the GR into MEM, and finally reload | |
6d36483b | 6755 | the FP register from MEM from within the branch's delay slot. */ |
ea52c577 | 6756 | output_asm_insn ("{fstws|fstw} %0,-16(%%r30)\n\tldw -16(%%r30),%4", |
6757 | operands); | |
34940871 | 6758 | output_asm_insn ("ldo %1(%4),%4\n\tstw %4,-16(%%r30)", operands); |
f26036bb | 6759 | if (length == 24) |
e4065f95 | 6760 | return "{comb|cmpb},%S2 %%r0,%4,%3\n\t{fldws|fldw} -16(%%r30),%0"; |
f26036bb | 6761 | else if (length == 28) |
e4065f95 | 6762 | return "{comclr|cmpclr},%B2 %%r0,%4,%%r0\n\tb %3\n\t{fldws|fldw} -16(%%r30),%0"; |
f26036bb | 6763 | else |
6764 | { | |
d9e3874e | 6765 | operands[5] = GEN_INT (length - 16); |
6766 | output_asm_insn ("{comb|cmpb},%B2 %%r0,%4,.+%5", operands); | |
f26036bb | 6767 | output_asm_insn ("{fldws|fldw} -16(%%r30),%0", operands); |
6768 | return output_lbranch (operands[3], insn, 0); | |
6769 | } | |
29a4502c | 6770 | } |
6771 | /* Deal with gross reload from memory case. */ | |
6772 | else | |
6773 | { | |
6774 | /* Reload loop counter from memory, the store back to memory | |
5aedf60c | 6775 | happens in the branch's delay slot. */ |
29a4502c | 6776 | output_asm_insn ("ldw %0,%4", operands); |
f26036bb | 6777 | if (length == 12) |
29a4502c | 6778 | return "addib,%C2 %1,%4,%3\n\tstw %4,%0"; |
f26036bb | 6779 | else if (length == 16) |
5a811d43 | 6780 | return "addi,%N2 %1,%4,%4\n\tb %3\n\tstw %4,%0"; |
f26036bb | 6781 | else |
6782 | { | |
d9e3874e | 6783 | operands[5] = GEN_INT (length - 4); |
6784 | output_asm_insn ("addib,%N2 %1,%4,.+%5\n\tstw %4,%0", operands); | |
f26036bb | 6785 | return output_lbranch (operands[3], insn, 0); |
6786 | } | |
29a4502c | 6787 | } |
6788 | } | |
6789 | ||
f26036bb | 6790 | /* Return the output template for emitting a movb type insn. |
29a4502c | 6791 | |
6792 | Note it may perform some output operations on its own before | |
6793 | returning the final output string. */ | |
611a88e1 | 6794 | const char * |
5c1d8983 | 6795 | output_movb (rtx *operands, rtx insn, int which_alternative, |
6796 | int reverse_comparison) | |
29a4502c | 6797 | { |
f26036bb | 6798 | int length = get_attr_length (insn); |
29a4502c | 6799 | |
a361b456 | 6800 | /* A conditional branch to the following instruction (e.g. the delay slot) is |
29a4502c | 6801 | asking for a disaster. Be prepared! */ |
6802 | ||
ece0fa59 | 6803 | if (next_real_insn (JUMP_LABEL (insn)) == next_real_insn (insn)) |
29a4502c | 6804 | { |
6805 | if (which_alternative == 0) | |
6806 | return "copy %1,%0"; | |
6807 | else if (which_alternative == 1) | |
6808 | { | |
ea52c577 | 6809 | output_asm_insn ("stw %1,-16(%%r30)", operands); |
e4065f95 | 6810 | return "{fldws|fldw} -16(%%r30),%0"; |
29a4502c | 6811 | } |
546a40bd | 6812 | else if (which_alternative == 2) |
29a4502c | 6813 | return "stw %1,%0"; |
546a40bd | 6814 | else |
6815 | return "mtsar %r1"; | |
29a4502c | 6816 | } |
6817 | ||
6818 | /* Support the second variant. */ | |
6819 | if (reverse_comparison) | |
6820 | PUT_CODE (operands[2], reverse_condition (GET_CODE (operands[2]))); | |
6821 | ||
6822 | if (which_alternative == 0) | |
6823 | { | |
6824 | int nullify = INSN_ANNULLED_BRANCH_P (insn); | |
f26036bb | 6825 | int xdelay; |
29a4502c | 6826 | |
6827 | /* If this is a long branch with its delay slot unfilled, set `nullify' | |
6828 | as it can nullify the delay slot and save a nop. */ | |
5a1231ef | 6829 | if (length == 8 && dbr_sequence_length () == 0) |
29a4502c | 6830 | nullify = 1; |
6831 | ||
6832 | /* If this is a short forward conditional branch which did not get | |
6833 | its delay slot filled, the delay slot can still be nullified. */ | |
5a1231ef | 6834 | if (! nullify && length == 4 && dbr_sequence_length () == 0) |
29a4502c | 6835 | nullify = forward_branch_p (insn); |
6836 | ||
ecf2283d | 6837 | switch (length) |
29a4502c | 6838 | { |
ecf2283d | 6839 | case 4: |
6840 | if (nullify) | |
6841 | return "movb,%C2,n %1,%0,%3"; | |
6842 | else | |
6843 | return "movb,%C2 %1,%0,%3"; | |
6844 | ||
6845 | case 8: | |
6d36483b | 6846 | /* Handle weird backwards branch with a filled delay slot |
29a4502c | 6847 | which is nullified. */ |
6848 | if (dbr_sequence_length () != 0 | |
6849 | && ! forward_branch_p (insn) | |
6850 | && nullify) | |
5a811d43 | 6851 | return "movb,%N2,n %1,%0,.+12\n\tb %3"; |
6d36483b | 6852 | |
43f0c1f2 | 6853 | /* Handle short backwards branch with an unfilled delay slot. |
6854 | Using a movb;nop rather than or;bl saves 1 cycle for both | |
6855 | taken and untaken branches. */ | |
6856 | else if (dbr_sequence_length () == 0 | |
6857 | && ! forward_branch_p (insn) | |
47fc0706 | 6858 | && INSN_ADDRESSES_SET_P () |
6859 | && VAL_14_BITS_P (INSN_ADDRESSES (INSN_UID (JUMP_LABEL (insn))) | |
6860 | - INSN_ADDRESSES (INSN_UID (insn)) - 8)) | |
43f0c1f2 | 6861 | return "movb,%C2 %1,%0,%3%#"; |
6d36483b | 6862 | /* Handle normal cases. */ |
29a4502c | 6863 | if (nullify) |
5a811d43 | 6864 | return "or,%N2 %1,%%r0,%0\n\tb,n %3"; |
29a4502c | 6865 | else |
5a811d43 | 6866 | return "or,%N2 %1,%%r0,%0\n\tb %3"; |
ecf2283d | 6867 | |
6868 | default: | |
f26036bb | 6869 | /* The reversed conditional branch must branch over one additional |
6870 | instruction if the delay slot is filled and needs to be extracted | |
6871 | by output_lbranch. If the delay slot is empty or this is a | |
6872 | nullified forward branch, the instruction after the reversed | |
6873 | condition branch must be nullified. */ | |
6874 | if (dbr_sequence_length () == 0 | |
6875 | || (nullify && forward_branch_p (insn))) | |
6876 | { | |
6877 | nullify = 1; | |
6878 | xdelay = 0; | |
6879 | operands[4] = GEN_INT (length); | |
6880 | } | |
6881 | else | |
6882 | { | |
6883 | xdelay = 1; | |
6884 | operands[4] = GEN_INT (length + 4); | |
6885 | } | |
6886 | ||
6887 | if (nullify) | |
6888 | output_asm_insn ("movb,%N2,n %1,%0,.+%4", operands); | |
6889 | else | |
6890 | output_asm_insn ("movb,%N2 %1,%0,.+%4", operands); | |
6891 | ||
6892 | return output_lbranch (operands[3], insn, xdelay); | |
29a4502c | 6893 | } |
29a4502c | 6894 | } |
f26036bb | 6895 | /* Deal with gross reload for FP destination register case. */ |
29a4502c | 6896 | else if (which_alternative == 1) |
6897 | { | |
f26036bb | 6898 | /* Move source register to MEM, perform the branch test, then |
6899 | finally load the FP register from MEM from within the branch's | |
6900 | delay slot. */ | |
ea52c577 | 6901 | output_asm_insn ("stw %1,-16(%%r30)", operands); |
f26036bb | 6902 | if (length == 12) |
e4065f95 | 6903 | return "{comb|cmpb},%S2 %%r0,%1,%3\n\t{fldws|fldw} -16(%%r30),%0"; |
f26036bb | 6904 | else if (length == 16) |
e4065f95 | 6905 | return "{comclr|cmpclr},%B2 %%r0,%1,%%r0\n\tb %3\n\t{fldws|fldw} -16(%%r30),%0"; |
f26036bb | 6906 | else |
6907 | { | |
d9e3874e | 6908 | operands[4] = GEN_INT (length - 4); |
6909 | output_asm_insn ("{comb|cmpb},%B2 %%r0,%1,.+%4", operands); | |
f26036bb | 6910 | output_asm_insn ("{fldws|fldw} -16(%%r30),%0", operands); |
6911 | return output_lbranch (operands[3], insn, 0); | |
6912 | } | |
29a4502c | 6913 | } |
6914 | /* Deal with gross reload from memory case. */ | |
546a40bd | 6915 | else if (which_alternative == 2) |
29a4502c | 6916 | { |
6917 | /* Reload loop counter from memory, the store back to memory | |
5aedf60c | 6918 | happens in the branch's delay slot. */ |
f26036bb | 6919 | if (length == 8) |
e4065f95 | 6920 | return "{comb|cmpb},%S2 %%r0,%1,%3\n\tstw %1,%0"; |
f26036bb | 6921 | else if (length == 12) |
e4065f95 | 6922 | return "{comclr|cmpclr},%B2 %%r0,%1,%%r0\n\tb %3\n\tstw %1,%0"; |
f26036bb | 6923 | else |
6924 | { | |
d9e3874e | 6925 | operands[4] = GEN_INT (length); |
6926 | output_asm_insn ("{comb|cmpb},%B2 %%r0,%1,.+%4\n\tstw %1,%0", | |
6927 | operands); | |
f26036bb | 6928 | return output_lbranch (operands[3], insn, 0); |
6929 | } | |
29a4502c | 6930 | } |
546a40bd | 6931 | /* Handle SAR as a destination. */ |
6932 | else | |
6933 | { | |
f26036bb | 6934 | if (length == 8) |
e4065f95 | 6935 | return "{comb|cmpb},%S2 %%r0,%1,%3\n\tmtsar %r1"; |
f26036bb | 6936 | else if (length == 12) |
be7770ad | 6937 | return "{comclr|cmpclr},%B2 %%r0,%1,%%r0\n\tb %3\n\tmtsar %r1"; |
f26036bb | 6938 | else |
6939 | { | |
d9e3874e | 6940 | operands[4] = GEN_INT (length); |
6941 | output_asm_insn ("{comb|cmpb},%B2 %%r0,%1,.+%4\n\tmtsar %r1", | |
6942 | operands); | |
f26036bb | 6943 | return output_lbranch (operands[3], insn, 0); |
6944 | } | |
546a40bd | 6945 | } |
29a4502c | 6946 | } |
6947 | ||
ece88821 | 6948 | /* Copy any FP arguments in INSN into integer registers. */ |
6949 | static void | |
5c1d8983 | 6950 | copy_fp_args (rtx insn) |
ece88821 | 6951 | { |
6952 | rtx link; | |
6953 | rtx xoperands[2]; | |
29a4502c | 6954 | |
ece88821 | 6955 | for (link = CALL_INSN_FUNCTION_USAGE (insn); link; link = XEXP (link, 1)) |
6956 | { | |
6957 | int arg_mode, regno; | |
6958 | rtx use = XEXP (link, 0); | |
3683f840 | 6959 | |
ece88821 | 6960 | if (! (GET_CODE (use) == USE |
6961 | && GET_CODE (XEXP (use, 0)) == REG | |
6962 | && FUNCTION_ARG_REGNO_P (REGNO (XEXP (use, 0))))) | |
6963 | continue; | |
d6686e21 | 6964 | |
ece88821 | 6965 | arg_mode = GET_MODE (XEXP (use, 0)); |
6966 | regno = REGNO (XEXP (use, 0)); | |
5e3c5739 | 6967 | |
ece88821 | 6968 | /* Is it a floating point register? */ |
6969 | if (regno >= 32 && regno <= 39) | |
6970 | { | |
6971 | /* Copy the FP register into an integer register via memory. */ | |
6972 | if (arg_mode == SFmode) | |
6973 | { | |
6974 | xoperands[0] = XEXP (use, 0); | |
6975 | xoperands[1] = gen_rtx_REG (SImode, 26 - (regno - 32) / 2); | |
6976 | output_asm_insn ("{fstws|fstw} %0,-16(%%sr0,%%r30)", xoperands); | |
6977 | output_asm_insn ("ldw -16(%%sr0,%%r30),%1", xoperands); | |
6978 | } | |
6979 | else | |
6980 | { | |
6981 | xoperands[0] = XEXP (use, 0); | |
6982 | xoperands[1] = gen_rtx_REG (DImode, 25 - (regno - 34) / 2); | |
6983 | output_asm_insn ("{fstds|fstd} %0,-16(%%sr0,%%r30)", xoperands); | |
6984 | output_asm_insn ("ldw -12(%%sr0,%%r30),%R1", xoperands); | |
6985 | output_asm_insn ("ldw -16(%%sr0,%%r30),%1", xoperands); | |
6986 | } | |
6987 | } | |
06ddb6f8 | 6988 | } |
ece88821 | 6989 | } |
6990 | ||
6991 | /* Compute length of the FP argument copy sequence for INSN. */ | |
6992 | static int | |
5c1d8983 | 6993 | length_fp_args (rtx insn) |
ece88821 | 6994 | { |
6995 | int length = 0; | |
6996 | rtx link; | |
06ddb6f8 | 6997 | |
ece88821 | 6998 | for (link = CALL_INSN_FUNCTION_USAGE (insn); link; link = XEXP (link, 1)) |
c7a4e712 | 6999 | { |
ece88821 | 7000 | int arg_mode, regno; |
7001 | rtx use = XEXP (link, 0); | |
7002 | ||
7003 | if (! (GET_CODE (use) == USE | |
7004 | && GET_CODE (XEXP (use, 0)) == REG | |
7005 | && FUNCTION_ARG_REGNO_P (REGNO (XEXP (use, 0))))) | |
7006 | continue; | |
c7a4e712 | 7007 | |
ece88821 | 7008 | arg_mode = GET_MODE (XEXP (use, 0)); |
7009 | regno = REGNO (XEXP (use, 0)); | |
7010 | ||
7011 | /* Is it a floating point register? */ | |
7012 | if (regno >= 32 && regno <= 39) | |
c7a4e712 | 7013 | { |
ece88821 | 7014 | if (arg_mode == SFmode) |
7015 | length += 8; | |
7016 | else | |
7017 | length += 12; | |
c7a4e712 | 7018 | } |
ece88821 | 7019 | } |
c7a4e712 | 7020 | |
ece88821 | 7021 | return length; |
7022 | } | |
b70ea764 | 7023 | |
cd0dfcc5 | 7024 | /* Return the attribute length for the millicode call instruction INSN. |
7025 | The length must match the code generated by output_millicode_call. | |
7026 | We include the delay slot in the returned length as it is better to | |
ece88821 | 7027 | over estimate the length than to under estimate it. */ |
b29897dd | 7028 | |
ece88821 | 7029 | int |
5c1d8983 | 7030 | attr_length_millicode_call (rtx insn) |
ece88821 | 7031 | { |
cd0dfcc5 | 7032 | unsigned long distance = -1; |
8a05c3c2 | 7033 | unsigned long total = IN_NAMED_SECTION_P (cfun->decl) ? 0 : total_code_bytes; |
ece88821 | 7034 | |
cd0dfcc5 | 7035 | if (INSN_ADDRESSES_SET_P ()) |
7036 | { | |
2247cc5f | 7037 | distance = (total + insn_current_reference_address (insn)); |
7038 | if (distance < total) | |
cd0dfcc5 | 7039 | distance = -1; |
7040 | } | |
ece88821 | 7041 | |
7042 | if (TARGET_64BIT) | |
7043 | { | |
7044 | if (!TARGET_LONG_CALLS && distance < 7600000) | |
cd0dfcc5 | 7045 | return 8; |
ece88821 | 7046 | |
cd0dfcc5 | 7047 | return 20; |
ece88821 | 7048 | } |
7049 | else if (TARGET_PORTABLE_RUNTIME) | |
cd0dfcc5 | 7050 | return 24; |
ece88821 | 7051 | else |
7052 | { | |
7053 | if (!TARGET_LONG_CALLS && distance < 240000) | |
cd0dfcc5 | 7054 | return 8; |
ece88821 | 7055 | |
7056 | if (TARGET_LONG_ABS_CALL && !flag_pic) | |
cd0dfcc5 | 7057 | return 12; |
ece88821 | 7058 | |
cd0dfcc5 | 7059 | return 24; |
ece88821 | 7060 | } |
7061 | } | |
7062 | ||
7063 | /* INSN is a function call. It may have an unconditional jump | |
7064 | in its delay slot. | |
b29897dd | 7065 | |
ece88821 | 7066 | CALL_DEST is the routine we are calling. */ |
b29897dd | 7067 | |
ece88821 | 7068 | const char * |
5c1d8983 | 7069 | output_millicode_call (rtx insn, rtx call_dest) |
ece88821 | 7070 | { |
7071 | int attr_length = get_attr_length (insn); | |
7072 | int seq_length = dbr_sequence_length (); | |
7073 | int distance; | |
7074 | rtx seq_insn; | |
7075 | rtx xoperands[3]; | |
b29897dd | 7076 | |
ece88821 | 7077 | xoperands[0] = call_dest; |
7078 | xoperands[2] = gen_rtx_REG (Pmode, TARGET_64BIT ? 2 : 31); | |
7079 | ||
7080 | /* Handle the common case where we are sure that the branch will | |
7081 | reach the beginning of the $CODE$ subspace. The within reach | |
7082 | form of the $$sh_func_adrs call has a length of 28. Because | |
a8b24921 | 7083 | it has an attribute type of multi, it never has a nonzero |
ece88821 | 7084 | sequence length. The length of the $$sh_func_adrs is the same |
7085 | as certain out of reach PIC calls to other routines. */ | |
7086 | if (!TARGET_LONG_CALLS | |
7087 | && ((seq_length == 0 | |
7088 | && (attr_length == 12 | |
7089 | || (attr_length == 28 && get_attr_type (insn) == TYPE_MULTI))) | |
7090 | || (seq_length != 0 && attr_length == 8))) | |
7091 | { | |
7092 | output_asm_insn ("{bl|b,l} %0,%2", xoperands); | |
7093 | } | |
7094 | else | |
7095 | { | |
7096 | if (TARGET_64BIT) | |
7097 | { | |
7098 | /* It might seem that one insn could be saved by accessing | |
7099 | the millicode function using the linkage table. However, | |
7100 | this doesn't work in shared libraries and other dynamically | |
7101 | loaded objects. Using a pc-relative sequence also avoids | |
7102 | problems related to the implicit use of the gp register. */ | |
7103 | output_asm_insn ("b,l .+8,%%r1", xoperands); | |
9bd9af5d | 7104 | |
7105 | if (TARGET_GAS) | |
7106 | { | |
7107 | output_asm_insn ("addil L'%0-$PIC_pcrel$0+4,%%r1", xoperands); | |
7108 | output_asm_insn ("ldo R'%0-$PIC_pcrel$0+8(%%r1),%%r1", xoperands); | |
7109 | } | |
7110 | else | |
7111 | { | |
7112 | xoperands[1] = gen_label_rtx (); | |
7113 | output_asm_insn ("addil L'%0-%l1,%%r1", xoperands); | |
805e22b2 | 7114 | (*targetm.asm_out.internal_label) (asm_out_file, "L", |
9bd9af5d | 7115 | CODE_LABEL_NUMBER (xoperands[1])); |
7116 | output_asm_insn ("ldo R'%0-%l1(%%r1),%%r1", xoperands); | |
7117 | } | |
7118 | ||
ece88821 | 7119 | output_asm_insn ("bve,l (%%r1),%%r2", xoperands); |
c7a4e712 | 7120 | } |
c7a4e712 | 7121 | else if (TARGET_PORTABLE_RUNTIME) |
7122 | { | |
ece88821 | 7123 | /* Pure portable runtime doesn't allow be/ble; we also don't |
7124 | have PIC support in the assembler/linker, so this sequence | |
7125 | is needed. */ | |
c7a4e712 | 7126 | |
ece88821 | 7127 | /* Get the address of our target into %r1. */ |
7128 | output_asm_insn ("ldil L'%0,%%r1", xoperands); | |
7129 | output_asm_insn ("ldo R'%0(%%r1),%%r1", xoperands); | |
c7a4e712 | 7130 | |
ece88821 | 7131 | /* Get our return address into %r31. */ |
7132 | output_asm_insn ("{bl|b,l} .+8,%%r31", xoperands); | |
7133 | output_asm_insn ("addi 8,%%r31,%%r31", xoperands); | |
c7a4e712 | 7134 | |
ece88821 | 7135 | /* Jump to our target address in %r1. */ |
7136 | output_asm_insn ("bv %%r0(%%r1)", xoperands); | |
c7a4e712 | 7137 | } |
ece88821 | 7138 | else if (!flag_pic) |
c7a4e712 | 7139 | { |
ece88821 | 7140 | output_asm_insn ("ldil L'%0,%%r1", xoperands); |
356267e0 | 7141 | if (TARGET_PA_20) |
ece88821 | 7142 | output_asm_insn ("be,l R'%0(%%sr4,%%r1),%%sr0,%%r31", xoperands); |
356267e0 | 7143 | else |
ece88821 | 7144 | output_asm_insn ("ble R'%0(%%sr4,%%r1)", xoperands); |
c7a4e712 | 7145 | } |
ece88821 | 7146 | else |
c7a4e712 | 7147 | { |
9bd9af5d | 7148 | output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands); |
7149 | output_asm_insn ("addi 16,%%r1,%%r31", xoperands); | |
7150 | ||
ece88821 | 7151 | if (TARGET_SOM || !TARGET_GAS) |
7152 | { | |
7153 | /* The HP assembler can generate relocations for the | |
7154 | difference of two symbols. GAS can do this for a | |
7155 | millicode symbol but not an arbitrary external | |
7156 | symbol when generating SOM output. */ | |
7157 | xoperands[1] = gen_label_rtx (); | |
805e22b2 | 7158 | (*targetm.asm_out.internal_label) (asm_out_file, "L", |
ece88821 | 7159 | CODE_LABEL_NUMBER (xoperands[1])); |
7160 | output_asm_insn ("addil L'%0-%l1,%%r1", xoperands); | |
7161 | output_asm_insn ("ldo R'%0-%l1(%%r1),%%r1", xoperands); | |
7162 | } | |
7163 | else | |
7164 | { | |
ece88821 | 7165 | output_asm_insn ("addil L'%0-$PIC_pcrel$0+8,%%r1", xoperands); |
7166 | output_asm_insn ("ldo R'%0-$PIC_pcrel$0+12(%%r1),%%r1", | |
7167 | xoperands); | |
7168 | } | |
c7a4e712 | 7169 | |
ece88821 | 7170 | /* Jump to our target address in %r1. */ |
7171 | output_asm_insn ("bv %%r0(%%r1)", xoperands); | |
c7a4e712 | 7172 | } |
c7a4e712 | 7173 | } |
7174 | ||
ece88821 | 7175 | if (seq_length == 0) |
7176 | output_asm_insn ("nop", xoperands); | |
c7a4e712 | 7177 | |
ece88821 | 7178 | /* We are done if there isn't a jump in the delay slot. */ |
7179 | if (seq_length == 0 || GET_CODE (NEXT_INSN (insn)) != JUMP_INSN) | |
7180 | return ""; | |
c7a4e712 | 7181 | |
ece88821 | 7182 | /* This call has an unconditional jump in its delay slot. */ |
7183 | xoperands[0] = XEXP (PATTERN (NEXT_INSN (insn)), 1); | |
c7a4e712 | 7184 | |
ece88821 | 7185 | /* See if the return address can be adjusted. Use the containing |
7186 | sequence insn's address. */ | |
cd0dfcc5 | 7187 | if (INSN_ADDRESSES_SET_P ()) |
c7a4e712 | 7188 | { |
cd0dfcc5 | 7189 | seq_insn = NEXT_INSN (PREV_INSN (XVECEXP (final_sequence, 0, 0))); |
7190 | distance = (INSN_ADDRESSES (INSN_UID (JUMP_LABEL (NEXT_INSN (insn)))) | |
7191 | - INSN_ADDRESSES (INSN_UID (seq_insn)) - 8); | |
7192 | ||
7193 | if (VAL_14_BITS_P (distance)) | |
7194 | { | |
7195 | xoperands[1] = gen_label_rtx (); | |
7196 | output_asm_insn ("ldo %0-%1(%2),%2", xoperands); | |
7197 | (*targetm.asm_out.internal_label) (asm_out_file, "L", | |
7198 | CODE_LABEL_NUMBER (xoperands[1])); | |
7199 | } | |
7200 | else | |
7201 | /* ??? This branch may not reach its target. */ | |
7202 | output_asm_insn ("nop\n\tb,n %0", xoperands); | |
c7a4e712 | 7203 | } |
ece88821 | 7204 | else |
7205 | /* ??? This branch may not reach its target. */ | |
7206 | output_asm_insn ("nop\n\tb,n %0", xoperands); | |
c7a4e712 | 7207 | |
7208 | /* Delete the jump. */ | |
7209 | PUT_CODE (NEXT_INSN (insn), NOTE); | |
7210 | NOTE_LINE_NUMBER (NEXT_INSN (insn)) = NOTE_INSN_DELETED; | |
7211 | NOTE_SOURCE_FILE (NEXT_INSN (insn)) = 0; | |
ece88821 | 7212 | |
c7a4e712 | 7213 | return ""; |
7214 | } | |
7215 | ||
cd0dfcc5 | 7216 | /* Return the attribute length of the call instruction INSN. The SIBCALL |
7217 | flag indicates whether INSN is a regular call or a sibling call. The | |
faf3f8c1 | 7218 | length returned must be longer than the code actually generated by |
7219 | output_call. Since branch shortening is done before delay branch | |
7220 | sequencing, there is no way to determine whether or not the delay | |
7221 | slot will be filled during branch shortening. Even when the delay | |
7222 | slot is filled, we may have to add a nop if the delay slot contains | |
7223 | a branch that can't reach its target. Thus, we always have to include | |
7224 | the delay slot in the length estimate. This used to be done in | |
7225 | pa_adjust_insn_length but we do it here now as some sequences always | |
7226 | fill the delay slot and we can save four bytes in the estimate for | |
7227 | these sequences. */ | |
ece88821 | 7228 | |
7229 | int | |
5c1d8983 | 7230 | attr_length_call (rtx insn, int sibcall) |
ece88821 | 7231 | { |
faf3f8c1 | 7232 | int local_call; |
7233 | rtx call_dest; | |
7234 | tree call_decl; | |
7235 | int length = 0; | |
7236 | rtx pat = PATTERN (insn); | |
cd0dfcc5 | 7237 | unsigned long distance = -1; |
ece88821 | 7238 | |
cd0dfcc5 | 7239 | if (INSN_ADDRESSES_SET_P ()) |
7240 | { | |
faf3f8c1 | 7241 | unsigned long total; |
7242 | ||
7243 | total = IN_NAMED_SECTION_P (cfun->decl) ? 0 : total_code_bytes; | |
2247cc5f | 7244 | distance = (total + insn_current_reference_address (insn)); |
7245 | if (distance < total) | |
cd0dfcc5 | 7246 | distance = -1; |
7247 | } | |
ece88821 | 7248 | |
faf3f8c1 | 7249 | /* Determine if this is a local call. */ |
7250 | if (GET_CODE (XVECEXP (pat, 0, 0)) == CALL) | |
7251 | call_dest = XEXP (XEXP (XVECEXP (pat, 0, 0), 0), 0); | |
ece88821 | 7252 | else |
faf3f8c1 | 7253 | call_dest = XEXP (XEXP (XEXP (XVECEXP (pat, 0, 0), 1), 0), 0); |
ece88821 | 7254 | |
faf3f8c1 | 7255 | call_decl = SYMBOL_REF_DECL (call_dest); |
7256 | local_call = call_decl && (*targetm.binds_local_p) (call_decl); | |
ece88821 | 7257 | |
faf3f8c1 | 7258 | /* pc-relative branch. */ |
7259 | if (!TARGET_LONG_CALLS | |
7260 | && ((TARGET_PA_20 && !sibcall && distance < 7600000) | |
7261 | || distance < 240000)) | |
7262 | length += 8; | |
ece88821 | 7263 | |
faf3f8c1 | 7264 | /* 64-bit plabel sequence. */ |
7265 | else if (TARGET_64BIT && !local_call) | |
7266 | length += sibcall ? 28 : 24; | |
ece88821 | 7267 | |
faf3f8c1 | 7268 | /* non-pic long absolute branch sequence. */ |
7269 | else if ((TARGET_LONG_ABS_CALL || local_call) && !flag_pic) | |
7270 | length += 12; | |
ece88821 | 7271 | |
faf3f8c1 | 7272 | /* long pc-relative branch sequence. */ |
7273 | else if ((TARGET_SOM && TARGET_LONG_PIC_SDIFF_CALL) | |
7274 | || (TARGET_64BIT && !TARGET_GAS) | |
7275 | || (TARGET_GAS && (TARGET_LONG_PIC_PCREL_CALL || local_call))) | |
7276 | { | |
7277 | length += 20; | |
ece88821 | 7278 | |
faf3f8c1 | 7279 | if (!TARGET_PA_20 && !TARGET_NO_SPACE_REGS) |
7280 | length += 8; | |
7281 | } | |
8a05c3c2 | 7282 | |
faf3f8c1 | 7283 | /* 32-bit plabel sequence. */ |
7284 | else | |
7285 | { | |
7286 | length += 32; | |
ece88821 | 7287 | |
faf3f8c1 | 7288 | if (TARGET_SOM) |
7289 | length += length_fp_args (insn); | |
7290 | ||
7291 | if (flag_pic) | |
7292 | length += 4; | |
ee376abe | 7293 | |
faf3f8c1 | 7294 | if (!TARGET_PA_20) |
7295 | { | |
ece88821 | 7296 | if (!sibcall) |
7297 | length += 8; | |
7298 | ||
faf3f8c1 | 7299 | if (!TARGET_NO_SPACE_REGS) |
7300 | length += 8; | |
ece88821 | 7301 | } |
7302 | } | |
faf3f8c1 | 7303 | |
7304 | return length; | |
ece88821 | 7305 | } |
7306 | ||
7307 | /* INSN is a function call. It may have an unconditional jump | |
c7a4e712 | 7308 | in its delay slot. |
7309 | ||
7310 | CALL_DEST is the routine we are calling. */ | |
7311 | ||
611a88e1 | 7312 | const char * |
5c1d8983 | 7313 | output_call (rtx insn, rtx call_dest, int sibcall) |
c7a4e712 | 7314 | { |
ece88821 | 7315 | int delay_insn_deleted = 0; |
7316 | int delay_slot_filled = 0; | |
b70ea764 | 7317 | int seq_length = dbr_sequence_length (); |
2247cc5f | 7318 | tree call_decl = SYMBOL_REF_DECL (call_dest); |
faf3f8c1 | 7319 | int local_call = call_decl && (*targetm.binds_local_p) (call_decl); |
ece88821 | 7320 | rtx xoperands[2]; |
7321 | ||
7322 | xoperands[0] = call_dest; | |
c7a4e712 | 7323 | |
ece88821 | 7324 | /* Handle the common case where we're sure that the branch will reach |
2247cc5f | 7325 | the beginning of the "$CODE$" subspace. This is the beginning of |
7326 | the current function if we are in a named section. */ | |
cd0dfcc5 | 7327 | if (!TARGET_LONG_CALLS && attr_length_call (insn, sibcall) == 8) |
d6686e21 | 7328 | { |
5e3c5739 | 7329 | xoperands[1] = gen_rtx_REG (word_mode, sibcall ? 0 : 2); |
ece88821 | 7330 | output_asm_insn ("{bl|b,l} %0,%1", xoperands); |
06ddb6f8 | 7331 | } |
ece88821 | 7332 | else |
06ddb6f8 | 7333 | { |
2247cc5f | 7334 | if (TARGET_64BIT && !local_call) |
3683f840 | 7335 | { |
ece88821 | 7336 | /* ??? As far as I can tell, the HP linker doesn't support the |
7337 | long pc-relative sequence described in the 64-bit runtime | |
7338 | architecture. So, we use a slightly longer indirect call. */ | |
4e75439e | 7339 | xoperands[0] = get_deferred_plabel (call_dest); |
ece88821 | 7340 | xoperands[1] = gen_label_rtx (); |
7341 | ||
7342 | /* If this isn't a sibcall, we put the load of %r27 into the | |
7343 | delay slot. We can't do this in a sibcall as we don't | |
7344 | have a second call-clobbered scratch register available. */ | |
7345 | if (seq_length != 0 | |
7346 | && GET_CODE (NEXT_INSN (insn)) != JUMP_INSN | |
7347 | && !sibcall) | |
7348 | { | |
7349 | final_scan_insn (NEXT_INSN (insn), asm_out_file, | |
4bf029b0 | 7350 | optimize, 0, NULL); |
ece88821 | 7351 | |
7352 | /* Now delete the delay insn. */ | |
7353 | PUT_CODE (NEXT_INSN (insn), NOTE); | |
7354 | NOTE_LINE_NUMBER (NEXT_INSN (insn)) = NOTE_INSN_DELETED; | |
7355 | NOTE_SOURCE_FILE (NEXT_INSN (insn)) = 0; | |
7356 | delay_insn_deleted = 1; | |
7357 | } | |
06ddb6f8 | 7358 | |
ece88821 | 7359 | output_asm_insn ("addil LT'%0,%%r27", xoperands); |
7360 | output_asm_insn ("ldd RT'%0(%%r1),%%r1", xoperands); | |
7361 | output_asm_insn ("ldd 0(%%r1),%%r1", xoperands); | |
06ddb6f8 | 7362 | |
ece88821 | 7363 | if (sibcall) |
06ddb6f8 | 7364 | { |
ece88821 | 7365 | output_asm_insn ("ldd 24(%%r1),%%r27", xoperands); |
7366 | output_asm_insn ("ldd 16(%%r1),%%r1", xoperands); | |
7367 | output_asm_insn ("bve (%%r1)", xoperands); | |
7368 | } | |
7369 | else | |
7370 | { | |
7371 | output_asm_insn ("ldd 16(%%r1),%%r2", xoperands); | |
7372 | output_asm_insn ("bve,l (%%r2),%%r2", xoperands); | |
7373 | output_asm_insn ("ldd 24(%%r1),%%r27", xoperands); | |
7374 | delay_slot_filled = 1; | |
06ddb6f8 | 7375 | } |
7376 | } | |
ece88821 | 7377 | else |
e3f53689 | 7378 | { |
ece88821 | 7379 | int indirect_call = 0; |
7380 | ||
7381 | /* Emit a long call. There are several different sequences | |
7382 | of increasing length and complexity. In most cases, | |
7383 | they don't allow an instruction in the delay slot. */ | |
2247cc5f | 7384 | if (!((TARGET_LONG_ABS_CALL || local_call) && !flag_pic) |
ece88821 | 7385 | && !(TARGET_SOM && TARGET_LONG_PIC_SDIFF_CALL) |
2247cc5f | 7386 | && !(TARGET_GAS && (TARGET_LONG_PIC_PCREL_CALL || local_call)) |
7387 | && !TARGET_64BIT) | |
ece88821 | 7388 | indirect_call = 1; |
7389 | ||
7390 | if (seq_length != 0 | |
7391 | && GET_CODE (NEXT_INSN (insn)) != JUMP_INSN | |
7392 | && !sibcall | |
7393 | && (!TARGET_PA_20 || indirect_call)) | |
5cc6b2bc | 7394 | { |
ece88821 | 7395 | /* A non-jump insn in the delay slot. By definition we can |
7396 | emit this insn before the call (and in fact before argument | |
7397 | relocating. */ | |
4bf029b0 | 7398 | final_scan_insn (NEXT_INSN (insn), asm_out_file, optimize, 0, |
fbf5169c | 7399 | NULL); |
ece88821 | 7400 | |
7401 | /* Now delete the delay insn. */ | |
7402 | PUT_CODE (NEXT_INSN (insn), NOTE); | |
7403 | NOTE_LINE_NUMBER (NEXT_INSN (insn)) = NOTE_INSN_DELETED; | |
7404 | NOTE_SOURCE_FILE (NEXT_INSN (insn)) = 0; | |
7405 | delay_insn_deleted = 1; | |
5cc6b2bc | 7406 | } |
e3f53689 | 7407 | |
2247cc5f | 7408 | if ((TARGET_LONG_ABS_CALL || local_call) && !flag_pic) |
5cc6b2bc | 7409 | { |
ece88821 | 7410 | /* This is the best sequence for making long calls in |
7411 | non-pic code. Unfortunately, GNU ld doesn't provide | |
7412 | the stub needed for external calls, and GAS's support | |
2247cc5f | 7413 | for this with the SOM linker is buggy. It is safe |
7414 | to use this for local calls. */ | |
ece88821 | 7415 | output_asm_insn ("ldil L'%0,%%r1", xoperands); |
7416 | if (sibcall) | |
7417 | output_asm_insn ("be R'%0(%%sr4,%%r1)", xoperands); | |
7418 | else | |
7419 | { | |
7420 | if (TARGET_PA_20) | |
7421 | output_asm_insn ("be,l R'%0(%%sr4,%%r1),%%sr0,%%r31", | |
7422 | xoperands); | |
7423 | else | |
7424 | output_asm_insn ("ble R'%0(%%sr4,%%r1)", xoperands); | |
c7a4e712 | 7425 | |
ece88821 | 7426 | output_asm_insn ("copy %%r31,%%r2", xoperands); |
7427 | delay_slot_filled = 1; | |
7428 | } | |
7429 | } | |
7430 | else | |
7431 | { | |
2247cc5f | 7432 | if ((TARGET_SOM && TARGET_LONG_PIC_SDIFF_CALL) |
7433 | || (TARGET_64BIT && !TARGET_GAS)) | |
b70ea764 | 7434 | { |
ece88821 | 7435 | /* The HP assembler and linker can handle relocations |
7436 | for the difference of two symbols. GAS and the HP | |
7437 | linker can't do this when one of the symbols is | |
7438 | external. */ | |
7439 | xoperands[1] = gen_label_rtx (); | |
7440 | output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands); | |
7441 | output_asm_insn ("addil L'%0-%l1,%%r1", xoperands); | |
805e22b2 | 7442 | (*targetm.asm_out.internal_label) (asm_out_file, "L", |
b70ea764 | 7443 | CODE_LABEL_NUMBER (xoperands[1])); |
ece88821 | 7444 | output_asm_insn ("ldo R'%0-%l1(%%r1),%%r1", xoperands); |
7445 | } | |
2247cc5f | 7446 | else if (TARGET_GAS && (TARGET_LONG_PIC_PCREL_CALL || local_call)) |
b70ea764 | 7447 | { |
ece88821 | 7448 | /* GAS currently can't generate the relocations that |
7449 | are needed for the SOM linker under HP-UX using this | |
7450 | sequence. The GNU linker doesn't generate the stubs | |
7451 | that are needed for external calls on TARGET_ELF32 | |
7452 | with this sequence. For now, we have to use a | |
7453 | longer plabel sequence when using GAS. */ | |
7454 | output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands); | |
7455 | output_asm_insn ("addil L'%0-$PIC_pcrel$0+4,%%r1", | |
b70ea764 | 7456 | xoperands); |
ece88821 | 7457 | output_asm_insn ("ldo R'%0-$PIC_pcrel$0+8(%%r1),%%r1", |
b70ea764 | 7458 | xoperands); |
7459 | } | |
5e3c5739 | 7460 | else |
7461 | { | |
ece88821 | 7462 | /* Emit a long plabel-based call sequence. This is |
7463 | essentially an inline implementation of $$dyncall. | |
7464 | We don't actually try to call $$dyncall as this is | |
7465 | as difficult as calling the function itself. */ | |
4e75439e | 7466 | xoperands[0] = get_deferred_plabel (call_dest); |
ece88821 | 7467 | xoperands[1] = gen_label_rtx (); |
7468 | ||
7469 | /* Since the call is indirect, FP arguments in registers | |
7470 | need to be copied to the general registers. Then, the | |
7471 | argument relocation stub will copy them back. */ | |
7472 | if (TARGET_SOM) | |
7473 | copy_fp_args (insn); | |
7474 | ||
7475 | if (flag_pic) | |
7476 | { | |
7477 | output_asm_insn ("addil LT'%0,%%r19", xoperands); | |
7478 | output_asm_insn ("ldw RT'%0(%%r1),%%r1", xoperands); | |
7479 | output_asm_insn ("ldw 0(%%r1),%%r1", xoperands); | |
7480 | } | |
7481 | else | |
7482 | { | |
7483 | output_asm_insn ("addil LR'%0-$global$,%%r27", | |
7484 | xoperands); | |
7485 | output_asm_insn ("ldw RR'%0-$global$(%%r1),%%r1", | |
7486 | xoperands); | |
7487 | } | |
06ddb6f8 | 7488 | |
ece88821 | 7489 | output_asm_insn ("bb,>=,n %%r1,30,.+16", xoperands); |
7490 | output_asm_insn ("depi 0,31,2,%%r1", xoperands); | |
7491 | output_asm_insn ("ldw 4(%%sr0,%%r1),%%r19", xoperands); | |
7492 | output_asm_insn ("ldw 0(%%sr0,%%r1),%%r1", xoperands); | |
c7a4e712 | 7493 | |
ece88821 | 7494 | if (!sibcall && !TARGET_PA_20) |
7495 | { | |
7496 | output_asm_insn ("{bl|b,l} .+8,%%r2", xoperands); | |
ee376abe | 7497 | if (TARGET_NO_SPACE_REGS) |
7498 | output_asm_insn ("addi 8,%%r2,%%r2", xoperands); | |
7499 | else | |
7500 | output_asm_insn ("addi 16,%%r2,%%r2", xoperands); | |
ece88821 | 7501 | } |
7502 | } | |
c7a4e712 | 7503 | |
ece88821 | 7504 | if (TARGET_PA_20) |
5e3c5739 | 7505 | { |
ece88821 | 7506 | if (sibcall) |
7507 | output_asm_insn ("bve (%%r1)", xoperands); | |
7508 | else | |
7509 | { | |
7510 | if (indirect_call) | |
7511 | { | |
7512 | output_asm_insn ("bve,l (%%r1),%%r2", xoperands); | |
7513 | output_asm_insn ("stw %%r2,-24(%%sp)", xoperands); | |
7514 | delay_slot_filled = 1; | |
7515 | } | |
7516 | else | |
7517 | output_asm_insn ("bve,l (%%r1),%%r2", xoperands); | |
7518 | } | |
5e3c5739 | 7519 | } |
7520 | else | |
7521 | { | |
ee376abe | 7522 | if (!TARGET_NO_SPACE_REGS) |
7523 | output_asm_insn ("ldsid (%%r1),%%r31\n\tmtsp %%r31,%%sr0", | |
7524 | xoperands); | |
06ddb6f8 | 7525 | |
ece88821 | 7526 | if (sibcall) |
ee376abe | 7527 | { |
7528 | if (TARGET_NO_SPACE_REGS) | |
7529 | output_asm_insn ("be 0(%%sr4,%%r1)", xoperands); | |
7530 | else | |
7531 | output_asm_insn ("be 0(%%sr0,%%r1)", xoperands); | |
7532 | } | |
ece88821 | 7533 | else |
7534 | { | |
ee376abe | 7535 | if (TARGET_NO_SPACE_REGS) |
7536 | output_asm_insn ("ble 0(%%sr4,%%r1)", xoperands); | |
7537 | else | |
7538 | output_asm_insn ("ble 0(%%sr0,%%r1)", xoperands); | |
06ddb6f8 | 7539 | |
ece88821 | 7540 | if (indirect_call) |
7541 | output_asm_insn ("stw %%r31,-24(%%sp)", xoperands); | |
7542 | else | |
7543 | output_asm_insn ("copy %%r31,%%r2", xoperands); | |
7544 | delay_slot_filled = 1; | |
7545 | } | |
7546 | } | |
7547 | } | |
06ddb6f8 | 7548 | } |
d6686e21 | 7549 | } |
6d36483b | 7550 | |
8a05c3c2 | 7551 | if (!delay_slot_filled && (seq_length == 0 || delay_insn_deleted)) |
ece88821 | 7552 | output_asm_insn ("nop", xoperands); |
d6686e21 | 7553 | |
ece88821 | 7554 | /* We are done if there isn't a jump in the delay slot. */ |
7555 | if (seq_length == 0 | |
7556 | || delay_insn_deleted | |
7557 | || GET_CODE (NEXT_INSN (insn)) != JUMP_INSN) | |
7558 | return ""; | |
d6686e21 | 7559 | |
ece88821 | 7560 | /* A sibcall should never have a branch in the delay slot. */ |
ecf2283d | 7561 | gcc_assert (!sibcall); |
d6686e21 | 7562 | |
ece88821 | 7563 | /* This call has an unconditional jump in its delay slot. */ |
7564 | xoperands[0] = XEXP (PATTERN (NEXT_INSN (insn)), 1); | |
d6686e21 | 7565 | |
cd0dfcc5 | 7566 | if (!delay_slot_filled && INSN_ADDRESSES_SET_P ()) |
d6686e21 | 7567 | { |
ece88821 | 7568 | /* See if the return address can be adjusted. Use the containing |
7569 | sequence insn's address. */ | |
7570 | rtx seq_insn = NEXT_INSN (PREV_INSN (XVECEXP (final_sequence, 0, 0))); | |
7571 | int distance = (INSN_ADDRESSES (INSN_UID (JUMP_LABEL (NEXT_INSN (insn)))) | |
7572 | - INSN_ADDRESSES (INSN_UID (seq_insn)) - 8); | |
7573 | ||
7574 | if (VAL_14_BITS_P (distance)) | |
7575 | { | |
7576 | xoperands[1] = gen_label_rtx (); | |
7577 | output_asm_insn ("ldo %0-%1(%%r2),%%r2", xoperands); | |
805e22b2 | 7578 | (*targetm.asm_out.internal_label) (asm_out_file, "L", |
7579 | CODE_LABEL_NUMBER (xoperands[1])); | |
ece88821 | 7580 | } |
7581 | else | |
ece88821 | 7582 | output_asm_insn ("nop\n\tb,n %0", xoperands); |
d6686e21 | 7583 | } |
ece88821 | 7584 | else |
ece88821 | 7585 | output_asm_insn ("b,n %0", xoperands); |
d6686e21 | 7586 | |
7587 | /* Delete the jump. */ | |
7588 | PUT_CODE (NEXT_INSN (insn), NOTE); | |
7589 | NOTE_LINE_NUMBER (NEXT_INSN (insn)) = NOTE_INSN_DELETED; | |
7590 | NOTE_SOURCE_FILE (NEXT_INSN (insn)) = 0; | |
ece88821 | 7591 | |
d6686e21 | 7592 | return ""; |
7593 | } | |
7594 | ||
cd0dfcc5 | 7595 | /* Return the attribute length of the indirect call instruction INSN. |
7596 | The length must match the code generated by output_indirect call. | |
7597 | The returned length includes the delay slot. Currently, the delay | |
7598 | slot of an indirect call sequence is not exposed and it is used by | |
7599 | the sequence itself. */ | |
7600 | ||
7601 | int | |
5c1d8983 | 7602 | attr_length_indirect_call (rtx insn) |
cd0dfcc5 | 7603 | { |
7604 | unsigned long distance = -1; | |
8a05c3c2 | 7605 | unsigned long total = IN_NAMED_SECTION_P (cfun->decl) ? 0 : total_code_bytes; |
cd0dfcc5 | 7606 | |
7607 | if (INSN_ADDRESSES_SET_P ()) | |
7608 | { | |
2247cc5f | 7609 | distance = (total + insn_current_reference_address (insn)); |
7610 | if (distance < total) | |
cd0dfcc5 | 7611 | distance = -1; |
7612 | } | |
7613 | ||
7614 | if (TARGET_64BIT) | |
7615 | return 12; | |
7616 | ||
7617 | if (TARGET_FAST_INDIRECT_CALLS | |
7618 | || (!TARGET_PORTABLE_RUNTIME | |
5925d47a | 7619 | && ((TARGET_PA_20 && !TARGET_SOM && distance < 7600000) |
7620 | || distance < 240000))) | |
cd0dfcc5 | 7621 | return 8; |
7622 | ||
7623 | if (flag_pic) | |
7624 | return 24; | |
7625 | ||
7626 | if (TARGET_PORTABLE_RUNTIME) | |
7627 | return 20; | |
7628 | ||
7629 | /* Out of reach, can use ble. */ | |
7630 | return 12; | |
7631 | } | |
7632 | ||
7633 | const char * | |
5c1d8983 | 7634 | output_indirect_call (rtx insn, rtx call_dest) |
cd0dfcc5 | 7635 | { |
7636 | rtx xoperands[1]; | |
7637 | ||
7638 | if (TARGET_64BIT) | |
7639 | { | |
7640 | xoperands[0] = call_dest; | |
7641 | output_asm_insn ("ldd 16(%0),%%r2", xoperands); | |
7642 | output_asm_insn ("bve,l (%%r2),%%r2\n\tldd 24(%0),%%r27", xoperands); | |
7643 | return ""; | |
7644 | } | |
7645 | ||
7646 | /* First the special case for kernels, level 0 systems, etc. */ | |
7647 | if (TARGET_FAST_INDIRECT_CALLS) | |
7648 | return "ble 0(%%sr4,%%r22)\n\tcopy %%r31,%%r2"; | |
7649 | ||
7650 | /* Now the normal case -- we can reach $$dyncall directly or | |
7651 | we're sure that we can get there via a long-branch stub. | |
7652 | ||
7653 | No need to check target flags as the length uniquely identifies | |
7654 | the remaining cases. */ | |
7655 | if (attr_length_indirect_call (insn) == 8) | |
f707acb9 | 7656 | { |
5925d47a | 7657 | /* The HP linker sometimes substitutes a BLE for BL/B,L calls to |
7658 | $$dyncall. Since BLE uses %r31 as the link register, the 22-bit | |
7659 | variant of the B,L instruction can't be used on the SOM target. */ | |
7660 | if (TARGET_PA_20 && !TARGET_SOM) | |
f707acb9 | 7661 | return ".CALL\tARGW0=GR\n\tb,l $$dyncall,%%r2\n\tcopy %%r2,%%r31"; |
7662 | else | |
7663 | return ".CALL\tARGW0=GR\n\tbl $$dyncall,%%r31\n\tcopy %%r31,%%r2"; | |
7664 | } | |
cd0dfcc5 | 7665 | |
7666 | /* Long millicode call, but we are not generating PIC or portable runtime | |
7667 | code. */ | |
7668 | if (attr_length_indirect_call (insn) == 12) | |
7669 | return ".CALL\tARGW0=GR\n\tldil L'$$dyncall,%%r2\n\tble R'$$dyncall(%%sr4,%%r2)\n\tcopy %%r31,%%r2"; | |
7670 | ||
7671 | /* Long millicode call for portable runtime. */ | |
7672 | if (attr_length_indirect_call (insn) == 20) | |
7673 | return "ldil L'$$dyncall,%%r31\n\tldo R'$$dyncall(%%r31),%%r31\n\tblr %%r0,%%r2\n\tbv,n %%r0(%%r31)\n\tnop"; | |
7674 | ||
7675 | /* We need a long PIC call to $$dyncall. */ | |
7676 | xoperands[0] = NULL_RTX; | |
7677 | output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands); | |
7678 | if (TARGET_SOM || !TARGET_GAS) | |
7679 | { | |
7680 | xoperands[0] = gen_label_rtx (); | |
7681 | output_asm_insn ("addil L'$$dyncall-%0,%%r1", xoperands); | |
7682 | (*targetm.asm_out.internal_label) (asm_out_file, "L", | |
7683 | CODE_LABEL_NUMBER (xoperands[0])); | |
7684 | output_asm_insn ("ldo R'$$dyncall-%0(%%r1),%%r1", xoperands); | |
7685 | } | |
7686 | else | |
7687 | { | |
7688 | output_asm_insn ("addil L'$$dyncall-$PIC_pcrel$0+4,%%r1", xoperands); | |
7689 | output_asm_insn ("ldo R'$$dyncall-$PIC_pcrel$0+8(%%r1),%%r1", | |
7690 | xoperands); | |
7691 | } | |
7692 | output_asm_insn ("blr %%r0,%%r2", xoperands); | |
7693 | output_asm_insn ("bv,n %%r0(%%r1)\n\tnop", xoperands); | |
7694 | return ""; | |
7695 | } | |
7696 | ||
7697 | /* Return the total length of the save and restore instructions needed for | |
7698 | the data linkage table pointer (i.e., the PIC register) across the call | |
7699 | instruction INSN. No-return calls do not require a save and restore. | |
7700 | In addition, we may be able to avoid the save and restore for calls | |
7701 | within the same translation unit. */ | |
7702 | ||
7703 | int | |
5c1d8983 | 7704 | attr_length_save_restore_dltp (rtx insn) |
cd0dfcc5 | 7705 | { |
7706 | if (find_reg_note (insn, REG_NORETURN, NULL_RTX)) | |
7707 | return 0; | |
7708 | ||
7709 | return 8; | |
7710 | } | |
7711 | ||
d6f01525 | 7712 | /* In HPUX 8.0's shared library scheme, special relocations are needed |
6d36483b | 7713 | for function labels if they might be passed to a function |
d6f01525 | 7714 | in a shared library (because shared libraries don't live in code |
44acf429 | 7715 | space), and special magic is needed to construct their address. */ |
d6f01525 | 7716 | |
7717 | void | |
5c1d8983 | 7718 | hppa_encode_label (rtx sym) |
d6f01525 | 7719 | { |
611a88e1 | 7720 | const char *str = XSTR (sym, 0); |
cccfb31e | 7721 | int len = strlen (str) + 1; |
7722 | char *newstr, *p; | |
d6f01525 | 7723 | |
cccfb31e | 7724 | p = newstr = alloca (len + 1); |
cccfb31e | 7725 | *p++ = '@'; |
7726 | strcpy (p, str); | |
74d80a9a | 7727 | |
ea52c577 | 7728 | XSTR (sym, 0) = ggc_alloc_string (newstr, len); |
d6f01525 | 7729 | } |
6d36483b | 7730 | |
7811991d | 7731 | static void |
5c1d8983 | 7732 | pa_encode_section_info (tree decl, rtx rtl, int first) |
7811991d | 7733 | { |
716b2c5a | 7734 | default_encode_section_info (decl, rtl, first); |
7735 | ||
7811991d | 7736 | if (first && TEXT_SPACE_P (decl)) |
7737 | { | |
7811991d | 7738 | SYMBOL_REF_FLAG (XEXP (rtl, 0)) = 1; |
7739 | if (TREE_CODE (decl) == FUNCTION_DECL) | |
2c129d70 | 7740 | hppa_encode_label (XEXP (rtl, 0)); |
7811991d | 7741 | } |
7742 | } | |
7743 | ||
7b4a38a6 | 7744 | /* This is sort of inverse to pa_encode_section_info. */ |
7745 | ||
7746 | static const char * | |
5c1d8983 | 7747 | pa_strip_name_encoding (const char *str) |
7b4a38a6 | 7748 | { |
c0264367 | 7749 | str += (*str == '@'); |
7750 | str += (*str == '*'); | |
7751 | return str; | |
7b4a38a6 | 7752 | } |
7753 | ||
d6f01525 | 7754 | int |
5c1d8983 | 7755 | function_label_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
d6f01525 | 7756 | { |
c1b3411e | 7757 | return GET_CODE (op) == SYMBOL_REF && FUNCTION_NAME_P (XSTR (op, 0)); |
d6f01525 | 7758 | } |
f33e3942 | 7759 | |
166bf021 | 7760 | /* Returns 1 if OP is a function label involved in a simple addition |
7761 | with a constant. Used to keep certain patterns from matching | |
7762 | during instruction combination. */ | |
7763 | int | |
5c1d8983 | 7764 | is_function_label_plus_const (rtx op) |
166bf021 | 7765 | { |
7766 | /* Strip off any CONST. */ | |
7767 | if (GET_CODE (op) == CONST) | |
7768 | op = XEXP (op, 0); | |
7769 | ||
7770 | return (GET_CODE (op) == PLUS | |
7771 | && function_label_operand (XEXP (op, 0), Pmode) | |
7772 | && GET_CODE (XEXP (op, 1)) == CONST_INT); | |
7773 | } | |
7774 | ||
f1752b7e | 7775 | /* Output assembly code for a thunk to FUNCTION. */ |
7776 | ||
6988553d | 7777 | static void |
5c1d8983 | 7778 | pa_asm_output_mi_thunk (FILE *file, tree thunk_fndecl, HOST_WIDE_INT delta, |
7779 | HOST_WIDE_INT vcall_offset ATTRIBUTE_UNUSED, | |
7780 | tree function) | |
f1752b7e | 7781 | { |
e678758c | 7782 | static unsigned int current_thunk_number; |
2247cc5f | 7783 | int val_14 = VAL_14_BITS_P (delta); |
7784 | int nbytes = 0; | |
f1752b7e | 7785 | char label[16]; |
e678758c | 7786 | rtx xoperands[4]; |
2247cc5f | 7787 | |
e678758c | 7788 | xoperands[0] = XEXP (DECL_RTL (function), 0); |
7789 | xoperands[1] = XEXP (DECL_RTL (thunk_fndecl), 0); | |
7790 | xoperands[2] = GEN_INT (delta); | |
2247cc5f | 7791 | |
e678758c | 7792 | ASM_OUTPUT_LABEL (file, XSTR (xoperands[1], 0)); |
7793 | fprintf (file, "\t.PROC\n\t.CALLINFO FRAME=0,NO_CALLS\n\t.ENTRY\n"); | |
2247cc5f | 7794 | |
7795 | /* Output the thunk. We know that the function is in the same | |
7796 | translation unit (i.e., the same space) as the thunk, and that | |
7797 | thunks are output after their method. Thus, we don't need an | |
7798 | external branch to reach the function. With SOM and GAS, | |
7799 | functions and thunks are effectively in different sections. | |
7800 | Thus, we can always use a IA-relative branch and the linker | |
7801 | will add a long branch stub if necessary. | |
7802 | ||
7803 | However, we have to be careful when generating PIC code on the | |
7804 | SOM port to ensure that the sequence does not transfer to an | |
7805 | import stub for the target function as this could clobber the | |
7806 | return value saved at SP-24. This would also apply to the | |
7807 | 32-bit linux port if the multi-space model is implemented. */ | |
7808 | if ((!TARGET_LONG_CALLS && TARGET_SOM && !TARGET_PORTABLE_RUNTIME | |
7809 | && !(flag_pic && TREE_PUBLIC (function)) | |
7810 | && (TARGET_GAS || last_address < 262132)) | |
7811 | || (!TARGET_LONG_CALLS && !TARGET_SOM && !TARGET_PORTABLE_RUNTIME | |
7812 | && ((targetm.have_named_sections | |
7813 | && DECL_SECTION_NAME (thunk_fndecl) != NULL | |
7814 | /* The GNU 64-bit linker has rather poor stub management. | |
7815 | So, we use a long branch from thunks that aren't in | |
7816 | the same section as the target function. */ | |
7817 | && ((!TARGET_64BIT | |
7818 | && (DECL_SECTION_NAME (thunk_fndecl) | |
7819 | != DECL_SECTION_NAME (function))) | |
7820 | || ((DECL_SECTION_NAME (thunk_fndecl) | |
7821 | == DECL_SECTION_NAME (function)) | |
7822 | && last_address < 262132))) | |
7823 | || (!targetm.have_named_sections && last_address < 262132)))) | |
7824 | { | |
e678758c | 7825 | if (!val_14) |
7826 | output_asm_insn ("addil L'%2,%%r26", xoperands); | |
7827 | ||
7828 | output_asm_insn ("b %0", xoperands); | |
7829 | ||
2247cc5f | 7830 | if (val_14) |
7831 | { | |
e678758c | 7832 | output_asm_insn ("ldo %2(%%r26),%%r26", xoperands); |
2247cc5f | 7833 | nbytes += 8; |
7834 | } | |
7835 | else | |
7836 | { | |
e678758c | 7837 | output_asm_insn ("ldo R'%2(%%r1),%%r26", xoperands); |
2247cc5f | 7838 | nbytes += 12; |
7839 | } | |
7840 | } | |
7841 | else if (TARGET_64BIT) | |
7842 | { | |
7843 | /* We only have one call-clobbered scratch register, so we can't | |
7844 | make use of the delay slot if delta doesn't fit in 14 bits. */ | |
7845 | if (!val_14) | |
e678758c | 7846 | { |
7847 | output_asm_insn ("addil L'%2,%%r26", xoperands); | |
7848 | output_asm_insn ("ldo R'%2(%%r1),%%r26", xoperands); | |
7849 | } | |
2247cc5f | 7850 | |
e678758c | 7851 | output_asm_insn ("b,l .+8,%%r1", xoperands); |
2247cc5f | 7852 | |
7853 | if (TARGET_GAS) | |
7854 | { | |
e678758c | 7855 | output_asm_insn ("addil L'%0-$PIC_pcrel$0+4,%%r1", xoperands); |
7856 | output_asm_insn ("ldo R'%0-$PIC_pcrel$0+8(%%r1),%%r1", xoperands); | |
2247cc5f | 7857 | } |
7858 | else | |
7859 | { | |
e678758c | 7860 | xoperands[3] = GEN_INT (val_14 ? 8 : 16); |
7861 | output_asm_insn ("addil L'%0-%1-%3,%%r1", xoperands); | |
2247cc5f | 7862 | } |
7863 | ||
7864 | if (val_14) | |
7865 | { | |
e678758c | 7866 | output_asm_insn ("bv %%r0(%%r1)", xoperands); |
7867 | output_asm_insn ("ldo %2(%%r26),%%r26", xoperands); | |
2247cc5f | 7868 | nbytes += 20; |
7869 | } | |
7870 | else | |
7871 | { | |
e678758c | 7872 | output_asm_insn ("bv,n %%r0(%%r1)", xoperands); |
2247cc5f | 7873 | nbytes += 24; |
7874 | } | |
7875 | } | |
7876 | else if (TARGET_PORTABLE_RUNTIME) | |
7877 | { | |
e678758c | 7878 | output_asm_insn ("ldil L'%0,%%r1", xoperands); |
7879 | output_asm_insn ("ldo R'%0(%%r1),%%r22", xoperands); | |
7880 | ||
7881 | if (!val_14) | |
7882 | output_asm_insn ("addil L'%2,%%r26", xoperands); | |
7883 | ||
7884 | output_asm_insn ("bv %%r0(%%r22)", xoperands); | |
2247cc5f | 7885 | |
7886 | if (val_14) | |
7887 | { | |
e678758c | 7888 | output_asm_insn ("ldo %2(%%r26),%%r26", xoperands); |
2247cc5f | 7889 | nbytes += 16; |
7890 | } | |
7891 | else | |
7892 | { | |
e678758c | 7893 | output_asm_insn ("ldo R'%2(%%r1),%%r26", xoperands); |
2247cc5f | 7894 | nbytes += 20; |
7895 | } | |
7896 | } | |
7897 | else if (TARGET_SOM && flag_pic && TREE_PUBLIC (function)) | |
7898 | { | |
7899 | /* The function is accessible from outside this module. The only | |
7900 | way to avoid an import stub between the thunk and function is to | |
7901 | call the function directly with an indirect sequence similar to | |
7902 | that used by $$dyncall. This is possible because $$dyncall acts | |
7903 | as the import stub in an indirect call. */ | |
2247cc5f | 7904 | ASM_GENERATE_INTERNAL_LABEL (label, "LTHN", current_thunk_number); |
e678758c | 7905 | xoperands[3] = gen_rtx_SYMBOL_REF (Pmode, label); |
7906 | output_asm_insn ("addil LT'%3,%%r19", xoperands); | |
7907 | output_asm_insn ("ldw RT'%3(%%r1),%%r22", xoperands); | |
7908 | output_asm_insn ("ldw 0(%%sr0,%%r22),%%r22", xoperands); | |
7909 | output_asm_insn ("bb,>=,n %%r22,30,.+16", xoperands); | |
7910 | output_asm_insn ("depi 0,31,2,%%r22", xoperands); | |
7911 | output_asm_insn ("ldw 4(%%sr0,%%r22),%%r19", xoperands); | |
7912 | output_asm_insn ("ldw 0(%%sr0,%%r22),%%r22", xoperands); | |
7913 | ||
2247cc5f | 7914 | if (!val_14) |
7915 | { | |
e678758c | 7916 | output_asm_insn ("addil L'%2,%%r26", xoperands); |
2247cc5f | 7917 | nbytes += 4; |
7918 | } | |
e678758c | 7919 | |
2247cc5f | 7920 | if (TARGET_PA_20) |
7921 | { | |
e678758c | 7922 | output_asm_insn ("bve (%%r22)", xoperands); |
7923 | nbytes += 36; | |
7924 | } | |
7925 | else if (TARGET_NO_SPACE_REGS) | |
7926 | { | |
7927 | output_asm_insn ("be 0(%%sr4,%%r22)", xoperands); | |
2247cc5f | 7928 | nbytes += 36; |
7929 | } | |
7930 | else | |
f1752b7e | 7931 | { |
e678758c | 7932 | output_asm_insn ("ldsid (%%sr0,%%r22),%%r21", xoperands); |
7933 | output_asm_insn ("mtsp %%r21,%%sr0", xoperands); | |
7934 | output_asm_insn ("be 0(%%sr0,%%r22)", xoperands); | |
7935 | nbytes += 44; | |
2247cc5f | 7936 | } |
7937 | ||
7938 | if (val_14) | |
e678758c | 7939 | output_asm_insn ("ldo %2(%%r26),%%r26", xoperands); |
2247cc5f | 7940 | else |
e678758c | 7941 | output_asm_insn ("ldo R'%2(%%r1),%%r26", xoperands); |
2247cc5f | 7942 | } |
7943 | else if (flag_pic) | |
7944 | { | |
e678758c | 7945 | output_asm_insn ("{bl|b,l} .+8,%%r1", xoperands); |
2247cc5f | 7946 | |
7947 | if (TARGET_SOM || !TARGET_GAS) | |
7948 | { | |
e678758c | 7949 | output_asm_insn ("addil L'%0-%1-8,%%r1", xoperands); |
7950 | output_asm_insn ("ldo R'%0-%1-8(%%r1),%%r22", xoperands); | |
2247cc5f | 7951 | } |
7952 | else | |
7953 | { | |
e678758c | 7954 | output_asm_insn ("addil L'%0-$PIC_pcrel$0+4,%%r1", xoperands); |
7955 | output_asm_insn ("ldo R'%0-$PIC_pcrel$0+8(%%r1),%%r22", xoperands); | |
2247cc5f | 7956 | } |
7957 | ||
e678758c | 7958 | if (!val_14) |
7959 | output_asm_insn ("addil L'%2,%%r26", xoperands); | |
7960 | ||
7961 | output_asm_insn ("bv %%r0(%%r22)", xoperands); | |
7962 | ||
2247cc5f | 7963 | if (val_14) |
7964 | { | |
e678758c | 7965 | output_asm_insn ("ldo %2(%%r26),%%r26", xoperands); |
2247cc5f | 7966 | nbytes += 20; |
f1752b7e | 7967 | } |
7968 | else | |
2247cc5f | 7969 | { |
e678758c | 7970 | output_asm_insn ("ldo R'%2(%%r1),%%r26", xoperands); |
2247cc5f | 7971 | nbytes += 24; |
7972 | } | |
f1752b7e | 7973 | } |
7974 | else | |
7975 | { | |
2247cc5f | 7976 | if (!val_14) |
e678758c | 7977 | output_asm_insn ("addil L'%2,%%r26", xoperands); |
2247cc5f | 7978 | |
e678758c | 7979 | output_asm_insn ("ldil L'%0,%%r22", xoperands); |
7980 | output_asm_insn ("be R'%0(%%sr4,%%r22)", xoperands); | |
2247cc5f | 7981 | |
7982 | if (val_14) | |
f1752b7e | 7983 | { |
e678758c | 7984 | output_asm_insn ("ldo %2(%%r26),%%r26", xoperands); |
2247cc5f | 7985 | nbytes += 12; |
f1752b7e | 7986 | } |
7987 | else | |
2247cc5f | 7988 | { |
e678758c | 7989 | output_asm_insn ("ldo R'%2(%%r1),%%r26", xoperands); |
2247cc5f | 7990 | nbytes += 16; |
7991 | } | |
f1752b7e | 7992 | } |
2247cc5f | 7993 | |
f1752b7e | 7994 | fprintf (file, "\t.EXIT\n\t.PROCEND\n"); |
2247cc5f | 7995 | |
78962d38 | 7996 | if (TARGET_SOM && TARGET_GAS) |
7997 | { | |
7998 | /* We done with this subspace except possibly for some additional | |
7999 | debug information. Forget that we are in this subspace to ensure | |
8000 | that the next function is output in its own subspace. */ | |
8001 | in_section = NULL; | |
8002 | cfun->machine->in_nsubspa = 2; | |
8003 | } | |
8004 | ||
2247cc5f | 8005 | if (TARGET_SOM && flag_pic && TREE_PUBLIC (function)) |
f1752b7e | 8006 | { |
2f14b1f9 | 8007 | switch_to_section (data_section); |
e678758c | 8008 | output_asm_insn (".align 4", xoperands); |
2247cc5f | 8009 | ASM_OUTPUT_LABEL (file, label); |
e678758c | 8010 | output_asm_insn (".word P'%0", xoperands); |
f1752b7e | 8011 | } |
2247cc5f | 8012 | |
f1752b7e | 8013 | current_thunk_number++; |
2247cc5f | 8014 | nbytes = ((nbytes + FUNCTION_BOUNDARY / BITS_PER_UNIT - 1) |
8015 | & ~(FUNCTION_BOUNDARY / BITS_PER_UNIT - 1)); | |
8016 | last_address += nbytes; | |
8017 | update_total_code_bytes (nbytes); | |
f1752b7e | 8018 | } |
8019 | ||
805e22b2 | 8020 | /* Only direct calls to static functions are allowed to be sibling (tail) |
8021 | call optimized. | |
8022 | ||
8023 | This restriction is necessary because some linker generated stubs will | |
8024 | store return pointers into rp' in some cases which might clobber a | |
8025 | live value already in rp'. | |
8026 | ||
8027 | In a sibcall the current function and the target function share stack | |
8028 | space. Thus if the path to the current function and the path to the | |
8029 | target function save a value in rp', they save the value into the | |
8030 | same stack slot, which has undesirable consequences. | |
8031 | ||
8032 | Because of the deferred binding nature of shared libraries any function | |
8033 | with external scope could be in a different load module and thus require | |
8034 | rp' to be saved when calling that function. So sibcall optimizations | |
8035 | can only be safe for static function. | |
8036 | ||
8037 | Note that GCC never needs return value relocations, so we don't have to | |
8038 | worry about static calls with return value relocations (which require | |
8039 | saving rp'). | |
8040 | ||
8041 | It is safe to perform a sibcall optimization when the target function | |
8042 | will never return. */ | |
8043 | static bool | |
5c1d8983 | 8044 | pa_function_ok_for_sibcall (tree decl, tree exp ATTRIBUTE_UNUSED) |
805e22b2 | 8045 | { |
e11e9ae3 | 8046 | if (TARGET_PORTABLE_RUNTIME) |
8047 | return false; | |
8048 | ||
f62b73b6 | 8049 | /* Sibcalls are ok for TARGET_ELF32 as along as the linker is used in |
8050 | single subspace mode and the call is not indirect. As far as I know, | |
8051 | there is no operating system support for the multiple subspace mode. | |
8052 | It might be possible to support indirect calls if we didn't use | |
8053 | $$dyncall (see the indirect sequence generated in output_call). */ | |
8054 | if (TARGET_ELF32) | |
8055 | return (decl != NULL_TREE); | |
8056 | ||
8057 | /* Sibcalls are not ok because the arg pointer register is not a fixed | |
2cecd772 | 8058 | register. This prevents the sibcall optimization from occurring. In |
f62b73b6 | 8059 | addition, there are problems with stub placement using GNU ld. This |
8060 | is because a normal sibcall branch uses a 17-bit relocation while | |
8061 | a regular call branch uses a 22-bit relocation. As a result, more | |
8062 | care needs to be taken in the placement of long-branch stubs. */ | |
8063 | if (TARGET_64BIT) | |
8064 | return false; | |
8065 | ||
e11e9ae3 | 8066 | /* Sibcalls are only ok within a translation unit. */ |
8067 | return (decl && !TREE_PUBLIC (decl)); | |
805e22b2 | 8068 | } |
8069 | ||
280566a7 | 8070 | /* ??? Addition is not commutative on the PA due to the weird implicit |
8071 | space register selection rules for memory addresses. Therefore, we | |
8072 | don't consider a + b == b + a, as this might be inside a MEM. */ | |
8073 | static bool | |
8074 | pa_commutative_p (rtx x, int outer_code) | |
8075 | { | |
8076 | return (COMMUTATIVE_P (x) | |
55e3fa6d | 8077 | && (TARGET_NO_SPACE_REGS |
8078 | || (outer_code != UNKNOWN && outer_code != MEM) | |
280566a7 | 8079 | || GET_CODE (x) != PLUS)); |
8080 | } | |
8081 | ||
37580c80 | 8082 | /* Returns 1 if the 6 operands specified in OPERANDS are suitable for |
8083 | use in fmpyadd instructions. */ | |
4ed6ee50 | 8084 | int |
5c1d8983 | 8085 | fmpyaddoperands (rtx *operands) |
4ed6ee50 | 8086 | { |
201f01e9 | 8087 | enum machine_mode mode = GET_MODE (operands[0]); |
4ed6ee50 | 8088 | |
ab449421 | 8089 | /* Must be a floating point mode. */ |
8090 | if (mode != SFmode && mode != DFmode) | |
8091 | return 0; | |
8092 | ||
4ed6ee50 | 8093 | /* All modes must be the same. */ |
201f01e9 | 8094 | if (! (mode == GET_MODE (operands[1]) |
8095 | && mode == GET_MODE (operands[2]) | |
8096 | && mode == GET_MODE (operands[3]) | |
8097 | && mode == GET_MODE (operands[4]) | |
8098 | && mode == GET_MODE (operands[5]))) | |
4ed6ee50 | 8099 | return 0; |
8100 | ||
ab449421 | 8101 | /* All operands must be registers. */ |
8102 | if (! (GET_CODE (operands[1]) == REG | |
8103 | && GET_CODE (operands[2]) == REG | |
8104 | && GET_CODE (operands[3]) == REG | |
8105 | && GET_CODE (operands[4]) == REG | |
8106 | && GET_CODE (operands[5]) == REG)) | |
4ed6ee50 | 8107 | return 0; |
8108 | ||
37580c80 | 8109 | /* Only 2 real operands to the addition. One of the input operands must |
8110 | be the same as the output operand. */ | |
4ed6ee50 | 8111 | if (! rtx_equal_p (operands[3], operands[4]) |
8112 | && ! rtx_equal_p (operands[3], operands[5])) | |
8113 | return 0; | |
8114 | ||
33f88b1c | 8115 | /* Inout operand of add cannot conflict with any operands from multiply. */ |
4ed6ee50 | 8116 | if (rtx_equal_p (operands[3], operands[0]) |
8117 | || rtx_equal_p (operands[3], operands[1]) | |
8118 | || rtx_equal_p (operands[3], operands[2])) | |
8119 | return 0; | |
8120 | ||
33f88b1c | 8121 | /* multiply cannot feed into addition operands. */ |
4ed6ee50 | 8122 | if (rtx_equal_p (operands[4], operands[0]) |
8123 | || rtx_equal_p (operands[5], operands[0])) | |
8124 | return 0; | |
8125 | ||
ab449421 | 8126 | /* SFmode limits the registers to the upper 32 of the 32bit FP regs. */ |
8127 | if (mode == SFmode | |
bac38c40 | 8128 | && (REGNO_REG_CLASS (REGNO (operands[0])) != FPUPPER_REGS |
8129 | || REGNO_REG_CLASS (REGNO (operands[1])) != FPUPPER_REGS | |
8130 | || REGNO_REG_CLASS (REGNO (operands[2])) != FPUPPER_REGS | |
8131 | || REGNO_REG_CLASS (REGNO (operands[3])) != FPUPPER_REGS | |
8132 | || REGNO_REG_CLASS (REGNO (operands[4])) != FPUPPER_REGS | |
8133 | || REGNO_REG_CLASS (REGNO (operands[5])) != FPUPPER_REGS)) | |
ab449421 | 8134 | return 0; |
8135 | ||
4ed6ee50 | 8136 | /* Passed. Operands are suitable for fmpyadd. */ |
8137 | return 1; | |
8138 | } | |
8139 | ||
de419443 | 8140 | #if !defined(USE_COLLECT2) |
8141 | static void | |
5c1d8983 | 8142 | pa_asm_out_constructor (rtx symbol, int priority) |
de419443 | 8143 | { |
8144 | if (!function_label_operand (symbol, VOIDmode)) | |
8145 | hppa_encode_label (symbol); | |
8146 | ||
8147 | #ifdef CTORS_SECTION_ASM_OP | |
8148 | default_ctor_section_asm_out_constructor (symbol, priority); | |
8149 | #else | |
8150 | # ifdef TARGET_ASM_NAMED_SECTION | |
8151 | default_named_section_asm_out_constructor (symbol, priority); | |
8152 | # else | |
8153 | default_stabs_asm_out_constructor (symbol, priority); | |
8154 | # endif | |
8155 | #endif | |
8156 | } | |
8157 | ||
8158 | static void | |
5c1d8983 | 8159 | pa_asm_out_destructor (rtx symbol, int priority) |
de419443 | 8160 | { |
8161 | if (!function_label_operand (symbol, VOIDmode)) | |
8162 | hppa_encode_label (symbol); | |
8163 | ||
8164 | #ifdef DTORS_SECTION_ASM_OP | |
8165 | default_dtor_section_asm_out_destructor (symbol, priority); | |
8166 | #else | |
8167 | # ifdef TARGET_ASM_NAMED_SECTION | |
8168 | default_named_section_asm_out_destructor (symbol, priority); | |
8169 | # else | |
8170 | default_stabs_asm_out_destructor (symbol, priority); | |
8171 | # endif | |
8172 | #endif | |
8173 | } | |
8174 | #endif | |
8175 | ||
ff59d376 | 8176 | /* This function places uninitialized global data in the bss section. |
8177 | The ASM_OUTPUT_ALIGNED_BSS macro needs to be defined to call this | |
8178 | function on the SOM port to prevent uninitialized global data from | |
8179 | being placed in the data section. */ | |
8180 | ||
8181 | void | |
8182 | pa_asm_output_aligned_bss (FILE *stream, | |
8183 | const char *name, | |
8184 | unsigned HOST_WIDE_INT size, | |
8185 | unsigned int align) | |
8186 | { | |
2f14b1f9 | 8187 | switch_to_section (bss_section); |
ff59d376 | 8188 | fprintf (stream, "\t.align %u\n", align / BITS_PER_UNIT); |
8189 | ||
8190 | #ifdef ASM_OUTPUT_TYPE_DIRECTIVE | |
8191 | ASM_OUTPUT_TYPE_DIRECTIVE (stream, name, "object"); | |
8192 | #endif | |
8193 | ||
8194 | #ifdef ASM_OUTPUT_SIZE_DIRECTIVE | |
8195 | ASM_OUTPUT_SIZE_DIRECTIVE (stream, name, size); | |
8196 | #endif | |
8197 | ||
8198 | fprintf (stream, "\t.align %u\n", align / BITS_PER_UNIT); | |
8199 | ASM_OUTPUT_LABEL (stream, name); | |
8200 | fprintf (stream, "\t.block "HOST_WIDE_INT_PRINT_UNSIGNED"\n", size); | |
8201 | } | |
8202 | ||
8203 | /* Both the HP and GNU assemblers under HP-UX provide a .comm directive | |
8204 | that doesn't allow the alignment of global common storage to be directly | |
8205 | specified. The SOM linker aligns common storage based on the rounded | |
8206 | value of the NUM_BYTES parameter in the .comm directive. It's not | |
8207 | possible to use the .align directive as it doesn't affect the alignment | |
8208 | of the label associated with a .comm directive. */ | |
8209 | ||
8210 | void | |
8211 | pa_asm_output_aligned_common (FILE *stream, | |
8212 | const char *name, | |
8213 | unsigned HOST_WIDE_INT size, | |
8214 | unsigned int align) | |
8215 | { | |
33cd7888 | 8216 | unsigned int max_common_align; |
8217 | ||
8218 | max_common_align = TARGET_64BIT ? 128 : (size >= 4096 ? 256 : 64); | |
8219 | if (align > max_common_align) | |
8220 | { | |
c3ceba8e | 8221 | warning (0, "alignment (%u) for %s exceeds maximum alignment " |
33cd7888 | 8222 | "for global common data. Using %u", |
8223 | align / BITS_PER_UNIT, name, max_common_align / BITS_PER_UNIT); | |
8224 | align = max_common_align; | |
8225 | } | |
8226 | ||
2f14b1f9 | 8227 | switch_to_section (bss_section); |
ff59d376 | 8228 | |
8229 | assemble_name (stream, name); | |
8230 | fprintf (stream, "\t.comm "HOST_WIDE_INT_PRINT_UNSIGNED"\n", | |
8231 | MAX (size, align / BITS_PER_UNIT)); | |
8232 | } | |
8233 | ||
8234 | /* We can't use .comm for local common storage as the SOM linker effectively | |
8235 | treats the symbol as universal and uses the same storage for local symbols | |
8236 | with the same name in different object files. The .block directive | |
8237 | reserves an uninitialized block of storage. However, it's not common | |
8238 | storage. Fortunately, GCC never requests common storage with the same | |
8239 | name in any given translation unit. */ | |
8240 | ||
8241 | void | |
8242 | pa_asm_output_aligned_local (FILE *stream, | |
8243 | const char *name, | |
8244 | unsigned HOST_WIDE_INT size, | |
8245 | unsigned int align) | |
8246 | { | |
2f14b1f9 | 8247 | switch_to_section (bss_section); |
ff59d376 | 8248 | fprintf (stream, "\t.align %u\n", align / BITS_PER_UNIT); |
8249 | ||
8250 | #ifdef LOCAL_ASM_OP | |
8251 | fprintf (stream, "%s", LOCAL_ASM_OP); | |
8252 | assemble_name (stream, name); | |
8253 | fprintf (stream, "\n"); | |
8254 | #endif | |
8255 | ||
8256 | ASM_OUTPUT_LABEL (stream, name); | |
8257 | fprintf (stream, "\t.block "HOST_WIDE_INT_PRINT_UNSIGNED"\n", size); | |
8258 | } | |
8259 | ||
37580c80 | 8260 | /* Returns 1 if the 6 operands specified in OPERANDS are suitable for |
8261 | use in fmpysub instructions. */ | |
4ed6ee50 | 8262 | int |
5c1d8983 | 8263 | fmpysuboperands (rtx *operands) |
4ed6ee50 | 8264 | { |
201f01e9 | 8265 | enum machine_mode mode = GET_MODE (operands[0]); |
4ed6ee50 | 8266 | |
ab449421 | 8267 | /* Must be a floating point mode. */ |
8268 | if (mode != SFmode && mode != DFmode) | |
8269 | return 0; | |
8270 | ||
4ed6ee50 | 8271 | /* All modes must be the same. */ |
201f01e9 | 8272 | if (! (mode == GET_MODE (operands[1]) |
8273 | && mode == GET_MODE (operands[2]) | |
8274 | && mode == GET_MODE (operands[3]) | |
8275 | && mode == GET_MODE (operands[4]) | |
8276 | && mode == GET_MODE (operands[5]))) | |
4ed6ee50 | 8277 | return 0; |
8278 | ||
ab449421 | 8279 | /* All operands must be registers. */ |
8280 | if (! (GET_CODE (operands[1]) == REG | |
8281 | && GET_CODE (operands[2]) == REG | |
8282 | && GET_CODE (operands[3]) == REG | |
8283 | && GET_CODE (operands[4]) == REG | |
8284 | && GET_CODE (operands[5]) == REG)) | |
4ed6ee50 | 8285 | return 0; |
8286 | ||
37580c80 | 8287 | /* Only 2 real operands to the subtraction. Subtraction is not a commutative |
8288 | operation, so operands[4] must be the same as operand[3]. */ | |
4ed6ee50 | 8289 | if (! rtx_equal_p (operands[3], operands[4])) |
8290 | return 0; | |
8291 | ||
33f88b1c | 8292 | /* multiply cannot feed into subtraction. */ |
37580c80 | 8293 | if (rtx_equal_p (operands[5], operands[0])) |
4ed6ee50 | 8294 | return 0; |
8295 | ||
33f88b1c | 8296 | /* Inout operand of sub cannot conflict with any operands from multiply. */ |
4ed6ee50 | 8297 | if (rtx_equal_p (operands[3], operands[0]) |
8298 | || rtx_equal_p (operands[3], operands[1]) | |
8299 | || rtx_equal_p (operands[3], operands[2])) | |
8300 | return 0; | |
8301 | ||
ab449421 | 8302 | /* SFmode limits the registers to the upper 32 of the 32bit FP regs. */ |
8303 | if (mode == SFmode | |
bac38c40 | 8304 | && (REGNO_REG_CLASS (REGNO (operands[0])) != FPUPPER_REGS |
8305 | || REGNO_REG_CLASS (REGNO (operands[1])) != FPUPPER_REGS | |
8306 | || REGNO_REG_CLASS (REGNO (operands[2])) != FPUPPER_REGS | |
8307 | || REGNO_REG_CLASS (REGNO (operands[3])) != FPUPPER_REGS | |
8308 | || REGNO_REG_CLASS (REGNO (operands[4])) != FPUPPER_REGS | |
8309 | || REGNO_REG_CLASS (REGNO (operands[5])) != FPUPPER_REGS)) | |
ab449421 | 8310 | return 0; |
8311 | ||
4ed6ee50 | 8312 | /* Passed. Operands are suitable for fmpysub. */ |
8313 | return 1; | |
8314 | } | |
8315 | ||
6720f95e | 8316 | /* Return 1 if the given constant is 2, 4, or 8. These are the valid |
8317 | constants for shadd instructions. */ | |
913de4b4 | 8318 | int |
5c1d8983 | 8319 | shadd_constant_p (int val) |
6720f95e | 8320 | { |
8321 | if (val == 2 || val == 4 || val == 8) | |
8322 | return 1; | |
8323 | else | |
8324 | return 0; | |
8325 | } | |
3a16146d | 8326 | |
dbd3d89d | 8327 | /* Return 1 if OP is valid as a base or index register in a |
8328 | REG+REG address. */ | |
42819d4e | 8329 | |
8330 | int | |
dbd3d89d | 8331 | borx_reg_operand (rtx op, enum machine_mode mode) |
42819d4e | 8332 | { |
dbd3d89d | 8333 | if (GET_CODE (op) != REG) |
21f3ee9c | 8334 | return 0; |
8335 | ||
dbd3d89d | 8336 | /* We must reject virtual registers as the only expressions that |
8337 | can be instantiated are REG and REG+CONST. */ | |
8338 | if (op == virtual_incoming_args_rtx | |
8339 | || op == virtual_stack_vars_rtx | |
8340 | || op == virtual_stack_dynamic_rtx | |
8341 | || op == virtual_outgoing_args_rtx | |
8342 | || op == virtual_cfa_rtx) | |
8343 | return 0; | |
42819d4e | 8344 | |
21f3ee9c | 8345 | /* While it's always safe to index off the frame pointer, it's not |
dbd3d89d | 8346 | profitable to do so when the frame pointer is being eliminated. */ |
8347 | if (!reload_completed | |
8348 | && flag_omit_frame_pointer | |
8349 | && !current_function_calls_alloca | |
8350 | && op == frame_pointer_rtx) | |
8351 | return 0; | |
42819d4e | 8352 | |
dbd3d89d | 8353 | return register_operand (op, mode); |
42819d4e | 8354 | } |
8355 | ||
51987f90 | 8356 | /* Return 1 if this operand is anything other than a hard register. */ |
8357 | ||
8358 | int | |
5c1d8983 | 8359 | non_hard_reg_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
51987f90 | 8360 | { |
8361 | return ! (GET_CODE (op) == REG && REGNO (op) < FIRST_PSEUDO_REGISTER); | |
8362 | } | |
8363 | ||
5fbd5940 | 8364 | /* Return 1 if INSN branches forward. Should be using insn_addresses |
6dc3b0d9 | 8365 | to avoid walking through all the insns... */ |
7d27e4c9 | 8366 | static int |
5c1d8983 | 8367 | forward_branch_p (rtx insn) |
5fbd5940 | 8368 | { |
8369 | rtx label = JUMP_LABEL (insn); | |
8370 | ||
8371 | while (insn) | |
8372 | { | |
8373 | if (insn == label) | |
8374 | break; | |
8375 | else | |
8376 | insn = NEXT_INSN (insn); | |
8377 | } | |
8378 | ||
8379 | return (insn == label); | |
8380 | } | |
8381 | ||
29a4502c | 8382 | /* Return 1 if OP is an equality comparison, else return 0. */ |
8383 | int | |
5c1d8983 | 8384 | eq_neq_comparison_operator (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED) |
29a4502c | 8385 | { |
8386 | return (GET_CODE (op) == EQ || GET_CODE (op) == NE); | |
8387 | } | |
8388 | ||
d6686e21 | 8389 | /* Return 1 if INSN is in the delay slot of a call instruction. */ |
8390 | int | |
5c1d8983 | 8391 | jump_in_call_delay (rtx insn) |
d6686e21 | 8392 | { |
8393 | ||
8394 | if (GET_CODE (insn) != JUMP_INSN) | |
8395 | return 0; | |
8396 | ||
8397 | if (PREV_INSN (insn) | |
8398 | && PREV_INSN (PREV_INSN (insn)) | |
ece0fa59 | 8399 | && GET_CODE (next_real_insn (PREV_INSN (PREV_INSN (insn)))) == INSN) |
d6686e21 | 8400 | { |
ece0fa59 | 8401 | rtx test_insn = next_real_insn (PREV_INSN (PREV_INSN (insn))); |
d6686e21 | 8402 | |
8403 | return (GET_CODE (PATTERN (test_insn)) == SEQUENCE | |
8404 | && XVECEXP (PATTERN (test_insn), 0, 1) == insn); | |
8405 | ||
8406 | } | |
8407 | else | |
8408 | return 0; | |
8409 | } | |
3b1e673e | 8410 | |
546a40bd | 8411 | /* Output an unconditional move and branch insn. */ |
8412 | ||
611a88e1 | 8413 | const char * |
f26036bb | 8414 | output_parallel_movb (rtx *operands, rtx insn) |
546a40bd | 8415 | { |
f26036bb | 8416 | int length = get_attr_length (insn); |
8417 | ||
546a40bd | 8418 | /* These are the cases in which we win. */ |
8419 | if (length == 4) | |
8420 | return "mov%I1b,tr %1,%0,%2"; | |
8421 | ||
f26036bb | 8422 | /* None of the following cases win, but they don't lose either. */ |
8423 | if (length == 8) | |
546a40bd | 8424 | { |
f26036bb | 8425 | if (dbr_sequence_length () == 0) |
8426 | { | |
8427 | /* Nothing in the delay slot, fake it by putting the combined | |
8428 | insn (the copy or add) in the delay slot of a bl. */ | |
8429 | if (GET_CODE (operands[1]) == CONST_INT) | |
8430 | return "b %2\n\tldi %1,%0"; | |
8431 | else | |
8432 | return "b %2\n\tcopy %1,%0"; | |
8433 | } | |
546a40bd | 8434 | else |
f26036bb | 8435 | { |
8436 | /* Something in the delay slot, but we've got a long branch. */ | |
8437 | if (GET_CODE (operands[1]) == CONST_INT) | |
8438 | return "ldi %1,%0\n\tb %2"; | |
8439 | else | |
8440 | return "copy %1,%0\n\tb %2"; | |
8441 | } | |
546a40bd | 8442 | } |
f26036bb | 8443 | |
8444 | if (GET_CODE (operands[1]) == CONST_INT) | |
8445 | output_asm_insn ("ldi %1,%0", operands); | |
546a40bd | 8446 | else |
f26036bb | 8447 | output_asm_insn ("copy %1,%0", operands); |
8448 | return output_lbranch (operands[2], insn, 1); | |
546a40bd | 8449 | } |
8450 | ||
8451 | /* Output an unconditional add and branch insn. */ | |
8452 | ||
611a88e1 | 8453 | const char * |
f26036bb | 8454 | output_parallel_addb (rtx *operands, rtx insn) |
546a40bd | 8455 | { |
f26036bb | 8456 | int length = get_attr_length (insn); |
8457 | ||
546a40bd | 8458 | /* To make life easy we want operand0 to be the shared input/output |
8459 | operand and operand1 to be the readonly operand. */ | |
8460 | if (operands[0] == operands[1]) | |
8461 | operands[1] = operands[2]; | |
8462 | ||
8463 | /* These are the cases in which we win. */ | |
8464 | if (length == 4) | |
8465 | return "add%I1b,tr %1,%0,%3"; | |
8466 | ||
f26036bb | 8467 | /* None of the following cases win, but they don't lose either. */ |
8468 | if (length == 8) | |
546a40bd | 8469 | { |
f26036bb | 8470 | if (dbr_sequence_length () == 0) |
8471 | /* Nothing in the delay slot, fake it by putting the combined | |
8472 | insn (the copy or add) in the delay slot of a bl. */ | |
8473 | return "b %3\n\tadd%I1 %1,%0,%0"; | |
8474 | else | |
8475 | /* Something in the delay slot, but we've got a long branch. */ | |
8476 | return "add%I1 %1,%0,%0\n\tb %3"; | |
546a40bd | 8477 | } |
f26036bb | 8478 | |
8479 | output_asm_insn ("add%I1 %1,%0,%0", operands); | |
8480 | return output_lbranch (operands[3], insn, 1); | |
546a40bd | 8481 | } |
8482 | ||
7c5101fc | 8483 | /* Return nonzero if INSN (a jump insn) immediately follows a call |
8484 | to a named function. This is used to avoid filling the delay slot | |
8485 | of the jump since it can usually be eliminated by modifying RP in | |
8486 | the delay slot of the call. */ | |
9840d99d | 8487 | |
7d27e4c9 | 8488 | int |
5c1d8983 | 8489 | following_call (rtx insn) |
546a40bd | 8490 | { |
ed1b0769 | 8491 | if (! TARGET_JUMP_IN_DELAY) |
1b6f11e2 | 8492 | return 0; |
8493 | ||
546a40bd | 8494 | /* Find the previous real insn, skipping NOTEs. */ |
8495 | insn = PREV_INSN (insn); | |
8496 | while (insn && GET_CODE (insn) == NOTE) | |
8497 | insn = PREV_INSN (insn); | |
8498 | ||
8499 | /* Check for CALL_INSNs and millicode calls. */ | |
8500 | if (insn | |
1d2e016c | 8501 | && ((GET_CODE (insn) == CALL_INSN |
8502 | && get_attr_type (insn) != TYPE_DYNCALL) | |
546a40bd | 8503 | || (GET_CODE (insn) == INSN |
8504 | && GET_CODE (PATTERN (insn)) != SEQUENCE | |
8505 | && GET_CODE (PATTERN (insn)) != USE | |
8506 | && GET_CODE (PATTERN (insn)) != CLOBBER | |
8507 | && get_attr_type (insn) == TYPE_MILLI))) | |
8508 | return 1; | |
8509 | ||
8510 | return 0; | |
8511 | } | |
8512 | ||
3b1e673e | 8513 | /* We use this hook to perform a PA specific optimization which is difficult |
8514 | to do in earlier passes. | |
8515 | ||
8516 | We want the delay slots of branches within jump tables to be filled. | |
8517 | None of the compiler passes at the moment even has the notion that a | |
8518 | PA jump table doesn't contain addresses, but instead contains actual | |
8519 | instructions! | |
8520 | ||
8521 | Because we actually jump into the table, the addresses of each entry | |
01cc3b75 | 8522 | must stay constant in relation to the beginning of the table (which |
3b1e673e | 8523 | itself must stay constant relative to the instruction to jump into |
8524 | it). I don't believe we can guarantee earlier passes of the compiler | |
8525 | will adhere to those rules. | |
8526 | ||
8527 | So, late in the compilation process we find all the jump tables, and | |
a361b456 | 8528 | expand them into real code -- e.g. each entry in the jump table vector |
3b1e673e | 8529 | will get an appropriate label followed by a jump to the final target. |
8530 | ||
8531 | Reorg and the final jump pass can then optimize these branches and | |
8532 | fill their delay slots. We end up with smaller, more efficient code. | |
8533 | ||
9840d99d | 8534 | The jump instructions within the table are special; we must be able |
3b1e673e | 8535 | to identify them during assembly output (if the jumps don't get filled |
8536 | we need to emit a nop rather than nullifying the delay slot)). We | |
b932f66c | 8537 | identify jumps in switch tables by using insns with the attribute |
8538 | type TYPE_BTABLE_BRANCH. | |
9239127b | 8539 | |
8540 | We also surround the jump table itself with BEGIN_BRTAB and END_BRTAB | |
8541 | insns. This serves two purposes, first it prevents jump.c from | |
8542 | noticing that the last N entries in the table jump to the instruction | |
8543 | immediately after the table and deleting the jumps. Second, those | |
8544 | insns mark where we should emit .begin_brtab and .end_brtab directives | |
8545 | when using GAS (allows for better link time optimizations). */ | |
3b1e673e | 8546 | |
2efea8c0 | 8547 | static void |
5c1d8983 | 8548 | pa_reorg (void) |
3b1e673e | 8549 | { |
8550 | rtx insn; | |
8551 | ||
2efea8c0 | 8552 | remove_useless_addtr_insns (1); |
3d457930 | 8553 | |
342aabd9 | 8554 | if (pa_cpu < PROCESSOR_8000) |
2efea8c0 | 8555 | pa_combine_instructions (); |
342aabd9 | 8556 | |
bd49d362 | 8557 | |
3d457930 | 8558 | /* This is fairly cheap, so always run it if optimizing. */ |
a66555b2 | 8559 | if (optimize > 0 && !TARGET_BIG_SWITCH) |
3b1e673e | 8560 | { |
b41266d4 | 8561 | /* Find and explode all ADDR_VEC or ADDR_DIFF_VEC insns. */ |
2efea8c0 | 8562 | for (insn = get_insns (); insn; insn = NEXT_INSN (insn)) |
3b1e673e | 8563 | { |
b932f66c | 8564 | rtx pattern, tmp, location, label; |
3b1e673e | 8565 | unsigned int length, i; |
8566 | ||
b41266d4 | 8567 | /* Find an ADDR_VEC or ADDR_DIFF_VEC insn to explode. */ |
3b1e673e | 8568 | if (GET_CODE (insn) != JUMP_INSN |
b41266d4 | 8569 | || (GET_CODE (PATTERN (insn)) != ADDR_VEC |
8570 | && GET_CODE (PATTERN (insn)) != ADDR_DIFF_VEC)) | |
3b1e673e | 8571 | continue; |
8572 | ||
9239127b | 8573 | /* Emit marker for the beginning of the branch table. */ |
8574 | emit_insn_before (gen_begin_brtab (), insn); | |
f9333726 | 8575 | |
3b1e673e | 8576 | pattern = PATTERN (insn); |
8577 | location = PREV_INSN (insn); | |
b41266d4 | 8578 | length = XVECLEN (pattern, GET_CODE (pattern) == ADDR_DIFF_VEC); |
f9333726 | 8579 | |
3b1e673e | 8580 | for (i = 0; i < length; i++) |
8581 | { | |
a66555b2 | 8582 | /* Emit a label before each jump to keep jump.c from |
8583 | removing this code. */ | |
8584 | tmp = gen_label_rtx (); | |
8585 | LABEL_NUSES (tmp) = 1; | |
8586 | emit_label_after (tmp, location); | |
8587 | location = NEXT_INSN (location); | |
8588 | ||
b41266d4 | 8589 | if (GET_CODE (pattern) == ADDR_VEC) |
b932f66c | 8590 | label = XEXP (XVECEXP (pattern, 0, i), 0); |
b41266d4 | 8591 | else |
b932f66c | 8592 | label = XEXP (XVECEXP (pattern, 1, i), 0); |
8593 | ||
8594 | tmp = gen_short_jump (label); | |
8595 | ||
8596 | /* Emit the jump itself. */ | |
8597 | tmp = emit_jump_insn_after (tmp, location); | |
8598 | JUMP_LABEL (tmp) = label; | |
8599 | LABEL_NUSES (label)++; | |
8600 | location = NEXT_INSN (location); | |
3b1e673e | 8601 | |
8602 | /* Emit a BARRIER after the jump. */ | |
3b1e673e | 8603 | emit_barrier_after (location); |
3b1e673e | 8604 | location = NEXT_INSN (location); |
8605 | } | |
f9333726 | 8606 | |
9239127b | 8607 | /* Emit marker for the end of the branch table. */ |
8608 | emit_insn_before (gen_end_brtab (), location); | |
8609 | location = NEXT_INSN (location); | |
8610 | emit_barrier_after (location); | |
a66555b2 | 8611 | |
b41266d4 | 8612 | /* Delete the ADDR_VEC or ADDR_DIFF_VEC. */ |
3b1e673e | 8613 | delete_insn (insn); |
8614 | } | |
8615 | } | |
9239127b | 8616 | else |
f9333726 | 8617 | { |
b932f66c | 8618 | /* Still need brtab marker insns. FIXME: the presence of these |
8619 | markers disables output of the branch table to readonly memory, | |
8620 | and any alignment directives that might be needed. Possibly, | |
8621 | the begin_brtab insn should be output before the label for the | |
7bd28bba | 8622 | table. This doesn't matter at the moment since the tables are |
b932f66c | 8623 | always output in the text section. */ |
2efea8c0 | 8624 | for (insn = get_insns (); insn; insn = NEXT_INSN (insn)) |
f9333726 | 8625 | { |
8626 | /* Find an ADDR_VEC insn. */ | |
8627 | if (GET_CODE (insn) != JUMP_INSN | |
b41266d4 | 8628 | || (GET_CODE (PATTERN (insn)) != ADDR_VEC |
8629 | && GET_CODE (PATTERN (insn)) != ADDR_DIFF_VEC)) | |
f9333726 | 8630 | continue; |
8631 | ||
8632 | /* Now generate markers for the beginning and end of the | |
ad87de1e | 8633 | branch table. */ |
f9333726 | 8634 | emit_insn_before (gen_begin_brtab (), insn); |
8635 | emit_insn_after (gen_end_brtab (), insn); | |
8636 | } | |
8637 | } | |
d3287673 | 8638 | } |
bd49d362 | 8639 | |
8640 | /* The PA has a number of odd instructions which can perform multiple | |
8641 | tasks at once. On first generation PA machines (PA1.0 and PA1.1) | |
8642 | it may be profitable to combine two instructions into one instruction | |
8643 | with two outputs. It's not profitable PA2.0 machines because the | |
8644 | two outputs would take two slots in the reorder buffers. | |
8645 | ||
8646 | This routine finds instructions which can be combined and combines | |
8647 | them. We only support some of the potential combinations, and we | |
8648 | only try common ways to find suitable instructions. | |
8649 | ||
8650 | * addb can add two registers or a register and a small integer | |
8651 | and jump to a nearby (+-8k) location. Normally the jump to the | |
8652 | nearby location is conditional on the result of the add, but by | |
8653 | using the "true" condition we can make the jump unconditional. | |
8654 | Thus addb can perform two independent operations in one insn. | |
8655 | ||
8656 | * movb is similar to addb in that it can perform a reg->reg | |
8657 | or small immediate->reg copy and jump to a nearby (+-8k location). | |
8658 | ||
8659 | * fmpyadd and fmpysub can perform a FP multiply and either an | |
8660 | FP add or FP sub if the operands of the multiply and add/sub are | |
8661 | independent (there are other minor restrictions). Note both | |
8662 | the fmpy and fadd/fsub can in theory move to better spots according | |
8663 | to data dependencies, but for now we require the fmpy stay at a | |
8664 | fixed location. | |
8665 | ||
8666 | * Many of the memory operations can perform pre & post updates | |
8667 | of index registers. GCC's pre/post increment/decrement addressing | |
8668 | is far too simple to take advantage of all the possibilities. This | |
8669 | pass may not be suitable since those insns may not be independent. | |
8670 | ||
8671 | * comclr can compare two ints or an int and a register, nullify | |
8672 | the following instruction and zero some other register. This | |
8673 | is more difficult to use as it's harder to find an insn which | |
8674 | will generate a comclr than finding something like an unconditional | |
8675 | branch. (conditional moves & long branches create comclr insns). | |
8676 | ||
8677 | * Most arithmetic operations can conditionally skip the next | |
8678 | instruction. They can be viewed as "perform this operation | |
8679 | and conditionally jump to this nearby location" (where nearby | |
8680 | is an insns away). These are difficult to use due to the | |
8681 | branch length restrictions. */ | |
8682 | ||
7d27e4c9 | 8683 | static void |
5c1d8983 | 8684 | pa_combine_instructions (void) |
bd49d362 | 8685 | { |
8686 | rtx anchor, new; | |
8687 | ||
8688 | /* This can get expensive since the basic algorithm is on the | |
8689 | order of O(n^2) (or worse). Only do it for -O2 or higher | |
ad87de1e | 8690 | levels of optimization. */ |
bd49d362 | 8691 | if (optimize < 2) |
8692 | return; | |
8693 | ||
8694 | /* Walk down the list of insns looking for "anchor" insns which | |
8695 | may be combined with "floating" insns. As the name implies, | |
8696 | "anchor" instructions don't move, while "floating" insns may | |
8697 | move around. */ | |
ad851752 | 8698 | new = gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, NULL_RTX, NULL_RTX)); |
bd49d362 | 8699 | new = make_insn_raw (new); |
8700 | ||
8701 | for (anchor = get_insns (); anchor; anchor = NEXT_INSN (anchor)) | |
8702 | { | |
8703 | enum attr_pa_combine_type anchor_attr; | |
8704 | enum attr_pa_combine_type floater_attr; | |
8705 | ||
8706 | /* We only care about INSNs, JUMP_INSNs, and CALL_INSNs. | |
8707 | Also ignore any special USE insns. */ | |
7d27e4c9 | 8708 | if ((GET_CODE (anchor) != INSN |
bd49d362 | 8709 | && GET_CODE (anchor) != JUMP_INSN |
7d27e4c9 | 8710 | && GET_CODE (anchor) != CALL_INSN) |
bd49d362 | 8711 | || GET_CODE (PATTERN (anchor)) == USE |
8712 | || GET_CODE (PATTERN (anchor)) == CLOBBER | |
8713 | || GET_CODE (PATTERN (anchor)) == ADDR_VEC | |
8714 | || GET_CODE (PATTERN (anchor)) == ADDR_DIFF_VEC) | |
8715 | continue; | |
8716 | ||
8717 | anchor_attr = get_attr_pa_combine_type (anchor); | |
8718 | /* See if anchor is an insn suitable for combination. */ | |
8719 | if (anchor_attr == PA_COMBINE_TYPE_FMPY | |
8720 | || anchor_attr == PA_COMBINE_TYPE_FADDSUB | |
8721 | || (anchor_attr == PA_COMBINE_TYPE_UNCOND_BRANCH | |
8722 | && ! forward_branch_p (anchor))) | |
8723 | { | |
8724 | rtx floater; | |
8725 | ||
8726 | for (floater = PREV_INSN (anchor); | |
8727 | floater; | |
8728 | floater = PREV_INSN (floater)) | |
8729 | { | |
8730 | if (GET_CODE (floater) == NOTE | |
8731 | || (GET_CODE (floater) == INSN | |
8732 | && (GET_CODE (PATTERN (floater)) == USE | |
8733 | || GET_CODE (PATTERN (floater)) == CLOBBER))) | |
8734 | continue; | |
8735 | ||
8736 | /* Anything except a regular INSN will stop our search. */ | |
8737 | if (GET_CODE (floater) != INSN | |
8738 | || GET_CODE (PATTERN (floater)) == ADDR_VEC | |
8739 | || GET_CODE (PATTERN (floater)) == ADDR_DIFF_VEC) | |
8740 | { | |
8741 | floater = NULL_RTX; | |
8742 | break; | |
8743 | } | |
8744 | ||
8745 | /* See if FLOATER is suitable for combination with the | |
8746 | anchor. */ | |
8747 | floater_attr = get_attr_pa_combine_type (floater); | |
8748 | if ((anchor_attr == PA_COMBINE_TYPE_FMPY | |
8749 | && floater_attr == PA_COMBINE_TYPE_FADDSUB) | |
8750 | || (anchor_attr == PA_COMBINE_TYPE_FADDSUB | |
8751 | && floater_attr == PA_COMBINE_TYPE_FMPY)) | |
8752 | { | |
8753 | /* If ANCHOR and FLOATER can be combined, then we're | |
8754 | done with this pass. */ | |
8755 | if (pa_can_combine_p (new, anchor, floater, 0, | |
8756 | SET_DEST (PATTERN (floater)), | |
8757 | XEXP (SET_SRC (PATTERN (floater)), 0), | |
8758 | XEXP (SET_SRC (PATTERN (floater)), 1))) | |
8759 | break; | |
8760 | } | |
8761 | ||
8762 | else if (anchor_attr == PA_COMBINE_TYPE_UNCOND_BRANCH | |
8763 | && floater_attr == PA_COMBINE_TYPE_ADDMOVE) | |
8764 | { | |
8765 | if (GET_CODE (SET_SRC (PATTERN (floater))) == PLUS) | |
8766 | { | |
8767 | if (pa_can_combine_p (new, anchor, floater, 0, | |
8768 | SET_DEST (PATTERN (floater)), | |
8769 | XEXP (SET_SRC (PATTERN (floater)), 0), | |
8770 | XEXP (SET_SRC (PATTERN (floater)), 1))) | |
8771 | break; | |
8772 | } | |
8773 | else | |
8774 | { | |
8775 | if (pa_can_combine_p (new, anchor, floater, 0, | |
8776 | SET_DEST (PATTERN (floater)), | |
8777 | SET_SRC (PATTERN (floater)), | |
8778 | SET_SRC (PATTERN (floater)))) | |
8779 | break; | |
8780 | } | |
8781 | } | |
8782 | } | |
8783 | ||
8784 | /* If we didn't find anything on the backwards scan try forwards. */ | |
8785 | if (!floater | |
8786 | && (anchor_attr == PA_COMBINE_TYPE_FMPY | |
8787 | || anchor_attr == PA_COMBINE_TYPE_FADDSUB)) | |
8788 | { | |
8789 | for (floater = anchor; floater; floater = NEXT_INSN (floater)) | |
8790 | { | |
8791 | if (GET_CODE (floater) == NOTE | |
8792 | || (GET_CODE (floater) == INSN | |
8793 | && (GET_CODE (PATTERN (floater)) == USE | |
8794 | || GET_CODE (PATTERN (floater)) == CLOBBER))) | |
9840d99d | 8795 | |
bd49d362 | 8796 | continue; |
8797 | ||
8798 | /* Anything except a regular INSN will stop our search. */ | |
8799 | if (GET_CODE (floater) != INSN | |
8800 | || GET_CODE (PATTERN (floater)) == ADDR_VEC | |
8801 | || GET_CODE (PATTERN (floater)) == ADDR_DIFF_VEC) | |
8802 | { | |
8803 | floater = NULL_RTX; | |
8804 | break; | |
8805 | } | |
8806 | ||
8807 | /* See if FLOATER is suitable for combination with the | |
8808 | anchor. */ | |
8809 | floater_attr = get_attr_pa_combine_type (floater); | |
8810 | if ((anchor_attr == PA_COMBINE_TYPE_FMPY | |
8811 | && floater_attr == PA_COMBINE_TYPE_FADDSUB) | |
8812 | || (anchor_attr == PA_COMBINE_TYPE_FADDSUB | |
8813 | && floater_attr == PA_COMBINE_TYPE_FMPY)) | |
8814 | { | |
8815 | /* If ANCHOR and FLOATER can be combined, then we're | |
8816 | done with this pass. */ | |
8817 | if (pa_can_combine_p (new, anchor, floater, 1, | |
8818 | SET_DEST (PATTERN (floater)), | |
ea52c577 | 8819 | XEXP (SET_SRC (PATTERN (floater)), |
8820 | 0), | |
8821 | XEXP (SET_SRC (PATTERN (floater)), | |
8822 | 1))) | |
bd49d362 | 8823 | break; |
8824 | } | |
8825 | } | |
8826 | } | |
8827 | ||
8828 | /* FLOATER will be nonzero if we found a suitable floating | |
8829 | insn for combination with ANCHOR. */ | |
8830 | if (floater | |
8831 | && (anchor_attr == PA_COMBINE_TYPE_FADDSUB | |
8832 | || anchor_attr == PA_COMBINE_TYPE_FMPY)) | |
8833 | { | |
8834 | /* Emit the new instruction and delete the old anchor. */ | |
7014838c | 8835 | emit_insn_before (gen_rtx_PARALLEL |
8836 | (VOIDmode, | |
8837 | gen_rtvec (2, PATTERN (anchor), | |
8838 | PATTERN (floater))), | |
8839 | anchor); | |
8840 | ||
bd49d362 | 8841 | PUT_CODE (anchor, NOTE); |
8842 | NOTE_LINE_NUMBER (anchor) = NOTE_INSN_DELETED; | |
8843 | NOTE_SOURCE_FILE (anchor) = 0; | |
8844 | ||
8845 | /* Emit a special USE insn for FLOATER, then delete | |
8846 | the floating insn. */ | |
ad851752 | 8847 | emit_insn_before (gen_rtx_USE (VOIDmode, floater), floater); |
bd49d362 | 8848 | delete_insn (floater); |
8849 | ||
8850 | continue; | |
8851 | } | |
8852 | else if (floater | |
8853 | && anchor_attr == PA_COMBINE_TYPE_UNCOND_BRANCH) | |
8854 | { | |
8855 | rtx temp; | |
8856 | /* Emit the new_jump instruction and delete the old anchor. */ | |
7014838c | 8857 | temp |
8858 | = emit_jump_insn_before (gen_rtx_PARALLEL | |
8859 | (VOIDmode, | |
8860 | gen_rtvec (2, PATTERN (anchor), | |
8861 | PATTERN (floater))), | |
8862 | anchor); | |
8863 | ||
bd49d362 | 8864 | JUMP_LABEL (temp) = JUMP_LABEL (anchor); |
8865 | PUT_CODE (anchor, NOTE); | |
8866 | NOTE_LINE_NUMBER (anchor) = NOTE_INSN_DELETED; | |
8867 | NOTE_SOURCE_FILE (anchor) = 0; | |
8868 | ||
8869 | /* Emit a special USE insn for FLOATER, then delete | |
8870 | the floating insn. */ | |
ad851752 | 8871 | emit_insn_before (gen_rtx_USE (VOIDmode, floater), floater); |
bd49d362 | 8872 | delete_insn (floater); |
8873 | continue; | |
8874 | } | |
8875 | } | |
8876 | } | |
8877 | } | |
8878 | ||
9aadea62 | 8879 | static int |
5c1d8983 | 8880 | pa_can_combine_p (rtx new, rtx anchor, rtx floater, int reversed, rtx dest, |
8881 | rtx src1, rtx src2) | |
bd49d362 | 8882 | { |
8883 | int insn_code_number; | |
8884 | rtx start, end; | |
8885 | ||
8886 | /* Create a PARALLEL with the patterns of ANCHOR and | |
8887 | FLOATER, try to recognize it, then test constraints | |
8888 | for the resulting pattern. | |
8889 | ||
8890 | If the pattern doesn't match or the constraints | |
8891 | aren't met keep searching for a suitable floater | |
8892 | insn. */ | |
8893 | XVECEXP (PATTERN (new), 0, 0) = PATTERN (anchor); | |
8894 | XVECEXP (PATTERN (new), 0, 1) = PATTERN (floater); | |
8895 | INSN_CODE (new) = -1; | |
8896 | insn_code_number = recog_memoized (new); | |
8897 | if (insn_code_number < 0 | |
bf9fd117 | 8898 | || (extract_insn (new), ! constrain_operands (1))) |
bd49d362 | 8899 | return 0; |
8900 | ||
8901 | if (reversed) | |
8902 | { | |
8903 | start = anchor; | |
8904 | end = floater; | |
8905 | } | |
8906 | else | |
8907 | { | |
8908 | start = floater; | |
8909 | end = anchor; | |
8910 | } | |
8911 | ||
8912 | /* There's up to three operands to consider. One | |
8913 | output and two inputs. | |
8914 | ||
8915 | The output must not be used between FLOATER & ANCHOR | |
8916 | exclusive. The inputs must not be set between | |
8917 | FLOATER and ANCHOR exclusive. */ | |
8918 | ||
8919 | if (reg_used_between_p (dest, start, end)) | |
8920 | return 0; | |
8921 | ||
8922 | if (reg_set_between_p (src1, start, end)) | |
8923 | return 0; | |
8924 | ||
8925 | if (reg_set_between_p (src2, start, end)) | |
8926 | return 0; | |
8927 | ||
8928 | /* If we get here, then everything is good. */ | |
8929 | return 1; | |
8930 | } | |
14d18de3 | 8931 | |
a6582a53 | 8932 | /* Return nonzero if references for INSN are delayed. |
14d18de3 | 8933 | |
8934 | Millicode insns are actually function calls with some special | |
8935 | constraints on arguments and register usage. | |
8936 | ||
8937 | Millicode calls always expect their arguments in the integer argument | |
8938 | registers, and always return their result in %r29 (ret1). They | |
2013ddf6 | 8939 | are expected to clobber their arguments, %r1, %r29, and the return |
8940 | pointer which is %r31 on 32-bit and %r2 on 64-bit, and nothing else. | |
8941 | ||
8942 | This function tells reorg that the references to arguments and | |
8943 | millicode calls do not appear to happen until after the millicode call. | |
8944 | This allows reorg to put insns which set the argument registers into the | |
8945 | delay slot of the millicode call -- thus they act more like traditional | |
8946 | CALL_INSNs. | |
8947 | ||
33f88b1c | 8948 | Note we cannot consider side effects of the insn to be delayed because |
2013ddf6 | 8949 | the branch and link insn will clobber the return pointer. If we happened |
8950 | to use the return pointer in the delay slot of the call, then we lose. | |
14d18de3 | 8951 | |
8952 | get_attr_type will try to recognize the given insn, so make sure to | |
8953 | filter out things it will not accept -- SEQUENCE, USE and CLOBBER insns | |
8954 | in particular. */ | |
8955 | int | |
5c1d8983 | 8956 | insn_refs_are_delayed (rtx insn) |
14d18de3 | 8957 | { |
9840d99d | 8958 | return ((GET_CODE (insn) == INSN |
14d18de3 | 8959 | && GET_CODE (PATTERN (insn)) != SEQUENCE |
8960 | && GET_CODE (PATTERN (insn)) != USE | |
8961 | && GET_CODE (PATTERN (insn)) != CLOBBER | |
8962 | && get_attr_type (insn) == TYPE_MILLI)); | |
8963 | } | |
5cb4669a | 8964 | |
58a72cce | 8965 | /* On the HP-PA the value is found in register(s) 28(-29), unless |
8966 | the mode is SF or DF. Then the value is returned in fr4 (32). | |
8967 | ||
8968 | This must perform the same promotions as PROMOTE_MODE, else | |
b8debbe8 | 8969 | TARGET_PROMOTE_FUNCTION_RETURN will not work correctly. |
58a72cce | 8970 | |
8971 | Small structures must be returned in a PARALLEL on PA64 in order | |
8972 | to match the HP Compiler ABI. */ | |
8973 | ||
8974 | rtx | |
5c1d8983 | 8975 | function_value (tree valtype, tree func ATTRIBUTE_UNUSED) |
58a72cce | 8976 | { |
8977 | enum machine_mode valmode; | |
8978 | ||
4779159e | 8979 | if (AGGREGATE_TYPE_P (valtype) |
8980 | || TREE_CODE (valtype) == COMPLEX_TYPE | |
8981 | || TREE_CODE (valtype) == VECTOR_TYPE) | |
58a72cce | 8982 | { |
b105ef41 | 8983 | if (TARGET_64BIT) |
8984 | { | |
8985 | /* Aggregates with a size less than or equal to 128 bits are | |
8986 | returned in GR 28(-29). They are left justified. The pad | |
8987 | bits are undefined. Larger aggregates are returned in | |
8988 | memory. */ | |
8989 | rtx loc[2]; | |
8990 | int i, offset = 0; | |
8991 | int ub = int_size_in_bytes (valtype) <= UNITS_PER_WORD ? 1 : 2; | |
8992 | ||
8993 | for (i = 0; i < ub; i++) | |
8994 | { | |
8995 | loc[i] = gen_rtx_EXPR_LIST (VOIDmode, | |
8996 | gen_rtx_REG (DImode, 28 + i), | |
8997 | GEN_INT (offset)); | |
8998 | offset += 8; | |
8999 | } | |
58a72cce | 9000 | |
b105ef41 | 9001 | return gen_rtx_PARALLEL (BLKmode, gen_rtvec_v (ub, loc)); |
9002 | } | |
9003 | else if (int_size_in_bytes (valtype) > UNITS_PER_WORD) | |
58a72cce | 9004 | { |
b105ef41 | 9005 | /* Aggregates 5 to 8 bytes in size are returned in general |
9006 | registers r28-r29 in the same manner as other non | |
9007 | floating-point objects. The data is right-justified and | |
9008 | zero-extended to 64 bits. This is opposite to the normal | |
9009 | justification used on big endian targets and requires | |
9010 | special treatment. */ | |
9011 | rtx loc = gen_rtx_EXPR_LIST (VOIDmode, | |
9012 | gen_rtx_REG (DImode, 28), const0_rtx); | |
9013 | return gen_rtx_PARALLEL (BLKmode, gen_rtvec (1, loc)); | |
58a72cce | 9014 | } |
58a72cce | 9015 | } |
9016 | ||
9017 | if ((INTEGRAL_TYPE_P (valtype) | |
9018 | && TYPE_PRECISION (valtype) < BITS_PER_WORD) | |
9019 | || POINTER_TYPE_P (valtype)) | |
9020 | valmode = word_mode; | |
9021 | else | |
9022 | valmode = TYPE_MODE (valtype); | |
9023 | ||
9024 | if (TREE_CODE (valtype) == REAL_TYPE | |
b105ef41 | 9025 | && !AGGREGATE_TYPE_P (valtype) |
58a72cce | 9026 | && TYPE_MODE (valtype) != TFmode |
9027 | && !TARGET_SOFT_FLOAT) | |
9028 | return gen_rtx_REG (valmode, 32); | |
9029 | ||
9030 | return gen_rtx_REG (valmode, 28); | |
9031 | } | |
9032 | ||
5e3c5739 | 9033 | /* Return the location of a parameter that is passed in a register or NULL |
9034 | if the parameter has any component that is passed in memory. | |
9035 | ||
9036 | This is new code and will be pushed to into the net sources after | |
9840d99d | 9037 | further testing. |
5e3c5739 | 9038 | |
9039 | ??? We might want to restructure this so that it looks more like other | |
9040 | ports. */ | |
9041 | rtx | |
5c1d8983 | 9042 | function_arg (CUMULATIVE_ARGS *cum, enum machine_mode mode, tree type, |
9043 | int named ATTRIBUTE_UNUSED) | |
5e3c5739 | 9044 | { |
9045 | int max_arg_words = (TARGET_64BIT ? 8 : 4); | |
2a075f91 | 9046 | int alignment = 0; |
ac965869 | 9047 | int arg_size; |
5e3c5739 | 9048 | int fpr_reg_base; |
9049 | int gpr_reg_base; | |
9050 | rtx retval; | |
9051 | ||
ac965869 | 9052 | if (mode == VOIDmode) |
9053 | return NULL_RTX; | |
9054 | ||
9055 | arg_size = FUNCTION_ARG_SIZE (mode, type); | |
9056 | ||
9057 | /* If this arg would be passed partially or totally on the stack, then | |
f054eb3c | 9058 | this routine should return zero. pa_arg_partial_bytes will |
ac965869 | 9059 | handle arguments which are split between regs and stack slots if |
9060 | the ABI mandates split arguments. */ | |
4779159e | 9061 | if (!TARGET_64BIT) |
5e3c5739 | 9062 | { |
ac965869 | 9063 | /* The 32-bit ABI does not split arguments. */ |
9064 | if (cum->words + arg_size > max_arg_words) | |
5e3c5739 | 9065 | return NULL_RTX; |
9066 | } | |
9067 | else | |
9068 | { | |
2a075f91 | 9069 | if (arg_size > 1) |
9070 | alignment = cum->words & 1; | |
ac965869 | 9071 | if (cum->words + alignment >= max_arg_words) |
5e3c5739 | 9072 | return NULL_RTX; |
9073 | } | |
9074 | ||
9075 | /* The 32bit ABIs and the 64bit ABIs are rather different, | |
9076 | particularly in their handling of FP registers. We might | |
9077 | be able to cleverly share code between them, but I'm not | |
9aadea62 | 9078 | going to bother in the hope that splitting them up results |
2a075f91 | 9079 | in code that is more easily understood. */ |
5e3c5739 | 9080 | |
5e3c5739 | 9081 | if (TARGET_64BIT) |
9082 | { | |
9083 | /* Advance the base registers to their current locations. | |
9084 | ||
9085 | Remember, gprs grow towards smaller register numbers while | |
2a075f91 | 9086 | fprs grow to higher register numbers. Also remember that |
9087 | although FP regs are 32-bit addressable, we pretend that | |
9088 | the registers are 64-bits wide. */ | |
5e3c5739 | 9089 | gpr_reg_base = 26 - cum->words; |
9090 | fpr_reg_base = 32 + cum->words; | |
9840d99d | 9091 | |
ac965869 | 9092 | /* Arguments wider than one word and small aggregates need special |
9093 | treatment. */ | |
9094 | if (arg_size > 1 | |
9095 | || mode == BLKmode | |
4779159e | 9096 | || (type && (AGGREGATE_TYPE_P (type) |
9097 | || TREE_CODE (type) == COMPLEX_TYPE | |
9098 | || TREE_CODE (type) == VECTOR_TYPE))) | |
5e3c5739 | 9099 | { |
2a075f91 | 9100 | /* Double-extended precision (80-bit), quad-precision (128-bit) |
9101 | and aggregates including complex numbers are aligned on | |
9102 | 128-bit boundaries. The first eight 64-bit argument slots | |
9103 | are associated one-to-one, with general registers r26 | |
9104 | through r19, and also with floating-point registers fr4 | |
9105 | through fr11. Arguments larger than one word are always | |
ac965869 | 9106 | passed in general registers. |
9107 | ||
9108 | Using a PARALLEL with a word mode register results in left | |
9109 | justified data on a big-endian target. */ | |
2a075f91 | 9110 | |
9111 | rtx loc[8]; | |
9112 | int i, offset = 0, ub = arg_size; | |
9113 | ||
9114 | /* Align the base register. */ | |
9115 | gpr_reg_base -= alignment; | |
9116 | ||
9117 | ub = MIN (ub, max_arg_words - cum->words - alignment); | |
9118 | for (i = 0; i < ub; i++) | |
5e3c5739 | 9119 | { |
2a075f91 | 9120 | loc[i] = gen_rtx_EXPR_LIST (VOIDmode, |
9121 | gen_rtx_REG (DImode, gpr_reg_base), | |
9122 | GEN_INT (offset)); | |
9123 | gpr_reg_base -= 1; | |
9124 | offset += 8; | |
5e3c5739 | 9125 | } |
2a075f91 | 9126 | |
9127 | return gen_rtx_PARALLEL (mode, gen_rtvec_v (ub, loc)); | |
5e3c5739 | 9128 | } |
ac965869 | 9129 | } |
5e3c5739 | 9130 | else |
9131 | { | |
9132 | /* If the argument is larger than a word, then we know precisely | |
9133 | which registers we must use. */ | |
2a075f91 | 9134 | if (arg_size > 1) |
5e3c5739 | 9135 | { |
9136 | if (cum->words) | |
9137 | { | |
9138 | gpr_reg_base = 23; | |
9139 | fpr_reg_base = 38; | |
9140 | } | |
9141 | else | |
9142 | { | |
9143 | gpr_reg_base = 25; | |
9144 | fpr_reg_base = 34; | |
9145 | } | |
ac965869 | 9146 | |
9147 | /* Structures 5 to 8 bytes in size are passed in the general | |
9148 | registers in the same manner as other non floating-point | |
9149 | objects. The data is right-justified and zero-extended | |
9f0b40a7 | 9150 | to 64 bits. This is opposite to the normal justification |
9151 | used on big endian targets and requires special treatment. | |
4779159e | 9152 | We now define BLOCK_REG_PADDING to pad these objects. |
9153 | Aggregates, complex and vector types are passed in the same | |
9154 | manner as structures. */ | |
9155 | if (mode == BLKmode | |
9156 | || (type && (AGGREGATE_TYPE_P (type) | |
9157 | || TREE_CODE (type) == COMPLEX_TYPE | |
9158 | || TREE_CODE (type) == VECTOR_TYPE))) | |
ac965869 | 9159 | { |
58a72cce | 9160 | rtx loc = gen_rtx_EXPR_LIST (VOIDmode, |
9161 | gen_rtx_REG (DImode, gpr_reg_base), | |
9162 | const0_rtx); | |
b105ef41 | 9163 | return gen_rtx_PARALLEL (BLKmode, gen_rtvec (1, loc)); |
ac965869 | 9164 | } |
5e3c5739 | 9165 | } |
9166 | else | |
9167 | { | |
9168 | /* We have a single word (32 bits). A simple computation | |
9169 | will get us the register #s we need. */ | |
9170 | gpr_reg_base = 26 - cum->words; | |
9171 | fpr_reg_base = 32 + 2 * cum->words; | |
9172 | } | |
9173 | } | |
9174 | ||
9503b0f7 | 9175 | /* Determine if the argument needs to be passed in both general and |
5e3c5739 | 9176 | floating point registers. */ |
9503b0f7 | 9177 | if (((TARGET_PORTABLE_RUNTIME || TARGET_64BIT || TARGET_ELF32) |
9178 | /* If we are doing soft-float with portable runtime, then there | |
9179 | is no need to worry about FP regs. */ | |
f336e0bc | 9180 | && !TARGET_SOFT_FLOAT |
4779159e | 9181 | /* The parameter must be some kind of scalar float, else we just |
9503b0f7 | 9182 | pass it in integer registers. */ |
4779159e | 9183 | && GET_MODE_CLASS (mode) == MODE_FLOAT |
9503b0f7 | 9184 | /* The target function must not have a prototype. */ |
9185 | && cum->nargs_prototype <= 0 | |
9186 | /* libcalls do not need to pass items in both FP and general | |
9187 | registers. */ | |
9188 | && type != NULL_TREE | |
f336e0bc | 9189 | /* All this hair applies to "outgoing" args only. This includes |
9190 | sibcall arguments setup with FUNCTION_INCOMING_ARG. */ | |
9191 | && !cum->incoming) | |
9503b0f7 | 9192 | /* Also pass outgoing floating arguments in both registers in indirect |
9193 | calls with the 32 bit ABI and the HP assembler since there is no | |
9194 | way to the specify argument locations in static functions. */ | |
f336e0bc | 9195 | || (!TARGET_64BIT |
9196 | && !TARGET_GAS | |
9197 | && !cum->incoming | |
9503b0f7 | 9198 | && cum->indirect |
4779159e | 9199 | && GET_MODE_CLASS (mode) == MODE_FLOAT)) |
5e3c5739 | 9200 | { |
9201 | retval | |
9202 | = gen_rtx_PARALLEL | |
9203 | (mode, | |
9204 | gen_rtvec (2, | |
9205 | gen_rtx_EXPR_LIST (VOIDmode, | |
9206 | gen_rtx_REG (mode, fpr_reg_base), | |
9207 | const0_rtx), | |
9208 | gen_rtx_EXPR_LIST (VOIDmode, | |
9209 | gen_rtx_REG (mode, gpr_reg_base), | |
9210 | const0_rtx))); | |
9211 | } | |
9212 | else | |
9213 | { | |
9214 | /* See if we should pass this parameter in a general register. */ | |
9215 | if (TARGET_SOFT_FLOAT | |
9216 | /* Indirect calls in the normal 32bit ABI require all arguments | |
9217 | to be passed in general registers. */ | |
9218 | || (!TARGET_PORTABLE_RUNTIME | |
9219 | && !TARGET_64BIT | |
a052da6f | 9220 | && !TARGET_ELF32 |
5e3c5739 | 9221 | && cum->indirect) |
4779159e | 9222 | /* If the parameter is not a scalar floating-point parameter, |
9223 | then it belongs in GPRs. */ | |
9224 | || GET_MODE_CLASS (mode) != MODE_FLOAT | |
b105ef41 | 9225 | /* Structure with single SFmode field belongs in GPR. */ |
9226 | || (type && AGGREGATE_TYPE_P (type))) | |
5e3c5739 | 9227 | retval = gen_rtx_REG (mode, gpr_reg_base); |
9228 | else | |
9229 | retval = gen_rtx_REG (mode, fpr_reg_base); | |
9230 | } | |
9231 | return retval; | |
9232 | } | |
9233 | ||
9234 | ||
9235 | /* If this arg would be passed totally in registers or totally on the stack, | |
f054eb3c | 9236 | then this routine should return zero. */ |
9237 | ||
9238 | static int | |
9239 | pa_arg_partial_bytes (CUMULATIVE_ARGS *cum, enum machine_mode mode, | |
9240 | tree type, bool named ATTRIBUTE_UNUSED) | |
5e3c5739 | 9241 | { |
b7d86581 | 9242 | unsigned int max_arg_words = 8; |
9243 | unsigned int offset = 0; | |
5e3c5739 | 9244 | |
f054eb3c | 9245 | if (!TARGET_64BIT) |
9246 | return 0; | |
9247 | ||
b7d86581 | 9248 | if (FUNCTION_ARG_SIZE (mode, type) > 1 && (cum->words & 1)) |
5e3c5739 | 9249 | offset = 1; |
9250 | ||
b7d86581 | 9251 | if (cum->words + offset + FUNCTION_ARG_SIZE (mode, type) <= max_arg_words) |
6dc3b0d9 | 9252 | /* Arg fits fully into registers. */ |
5e3c5739 | 9253 | return 0; |
9840d99d | 9254 | else if (cum->words + offset >= max_arg_words) |
6dc3b0d9 | 9255 | /* Arg fully on the stack. */ |
5e3c5739 | 9256 | return 0; |
9257 | else | |
6dc3b0d9 | 9258 | /* Arg is split. */ |
f054eb3c | 9259 | return (max_arg_words - cum->words - offset) * UNITS_PER_WORD; |
5e3c5739 | 9260 | } |
9261 | ||
9262 | ||
2f14b1f9 | 9263 | /* A get_unnamed_section callback for switching to the text section. |
916c9cef | 9264 | |
9265 | This function is only used with SOM. Because we don't support | |
9266 | named subspaces, we can only create a new subspace or switch back | |
99c11254 | 9267 | to the default text subspace. */ |
99c11254 | 9268 | |
2f14b1f9 | 9269 | static void |
9270 | som_output_text_section_asm_op (const void *data ATTRIBUTE_UNUSED) | |
9271 | { | |
9272 | gcc_assert (TARGET_SOM); | |
99c11254 | 9273 | if (TARGET_GAS) |
916c9cef | 9274 | { |
9275 | if (cfun && !cfun->machine->in_nsubspa) | |
9276 | { | |
9277 | /* We only want to emit a .nsubspa directive once at the | |
9278 | start of the function. */ | |
9279 | cfun->machine->in_nsubspa = 1; | |
9280 | ||
9281 | /* Create a new subspace for the text. This provides | |
9282 | better stub placement and one-only functions. */ | |
9283 | if (cfun->decl | |
9284 | && DECL_ONE_ONLY (cfun->decl) | |
9285 | && !DECL_WEAK (cfun->decl)) | |
78962d38 | 9286 | { |
9287 | output_section_asm_op ("\t.SPACE $TEXT$\n" | |
9288 | "\t.NSUBSPA $CODE$,QUAD=0,ALIGN=8," | |
9289 | "ACCESS=44,SORT=24,COMDAT"); | |
9290 | return; | |
9291 | } | |
916c9cef | 9292 | } |
9293 | else | |
9294 | { | |
9295 | /* There isn't a current function or the body of the current | |
9296 | function has been completed. So, we are changing to the | |
78962d38 | 9297 | text section to output debugging information. Thus, we |
9298 | need to forget that we are in the text section so that | |
9299 | varasm.c will call us when text_section is selected again. */ | |
9300 | gcc_assert (!cfun || cfun->machine->in_nsubspa == 2); | |
2f14b1f9 | 9301 | in_section = NULL; |
916c9cef | 9302 | } |
78962d38 | 9303 | output_section_asm_op ("\t.SPACE $TEXT$\n\t.NSUBSPA $CODE$"); |
9304 | return; | |
916c9cef | 9305 | } |
2f14b1f9 | 9306 | output_section_asm_op ("\t.SPACE $TEXT$\n\t.SUBSPA $CODE$"); |
9307 | } | |
9308 | ||
78962d38 | 9309 | /* A get_unnamed_section callback for switching to comdat data |
9310 | sections. This function is only used with SOM. */ | |
9311 | ||
9312 | static void | |
9313 | som_output_comdat_data_section_asm_op (const void *data) | |
9314 | { | |
9315 | in_section = NULL; | |
9316 | output_section_asm_op (data); | |
9317 | } | |
9318 | ||
2f14b1f9 | 9319 | /* Implement TARGET_ASM_INITIALIZE_SECTIONS */ |
916c9cef | 9320 | |
2f14b1f9 | 9321 | static void |
9322 | pa_som_asm_init_sections (void) | |
9323 | { | |
9324 | text_section | |
9325 | = get_unnamed_section (0, som_output_text_section_asm_op, NULL); | |
9326 | ||
9327 | /* SOM puts readonly data in the default $LIT$ subspace when PIC code | |
9328 | is not being generated. */ | |
9329 | som_readonly_data_section | |
9330 | = get_unnamed_section (0, output_section_asm_op, | |
9331 | "\t.SPACE $TEXT$\n\t.SUBSPA $LIT$"); | |
9332 | ||
9333 | /* When secondary definitions are not supported, SOM makes readonly | |
9334 | data one-only by creating a new $LIT$ subspace in $TEXT$ with | |
9335 | the comdat flag. */ | |
9336 | som_one_only_readonly_data_section | |
78962d38 | 9337 | = get_unnamed_section (0, som_output_comdat_data_section_asm_op, |
2f14b1f9 | 9338 | "\t.SPACE $TEXT$\n" |
9339 | "\t.NSUBSPA $LIT$,QUAD=0,ALIGN=8," | |
9340 | "ACCESS=0x2c,SORT=16,COMDAT"); | |
9341 | ||
9342 | ||
9343 | /* When secondary definitions are not supported, SOM makes data one-only | |
9344 | by creating a new $DATA$ subspace in $PRIVATE$ with the comdat flag. */ | |
9345 | som_one_only_data_section | |
78962d38 | 9346 | = get_unnamed_section (SECTION_WRITE, |
9347 | som_output_comdat_data_section_asm_op, | |
2f14b1f9 | 9348 | "\t.SPACE $PRIVATE$\n" |
9349 | "\t.NSUBSPA $DATA$,QUAD=1,ALIGN=8," | |
9350 | "ACCESS=31,SORT=24,COMDAT"); | |
9351 | ||
9352 | /* FIXME: HPUX ld generates incorrect GOT entries for "T" fixups | |
9353 | which reference data within the $TEXT$ space (for example constant | |
9354 | strings in the $LIT$ subspace). | |
9355 | ||
9356 | The assemblers (GAS and HP as) both have problems with handling | |
9357 | the difference of two symbols which is the other correct way to | |
9358 | reference constant data during PIC code generation. | |
9359 | ||
9360 | So, there's no way to reference constant data which is in the | |
9361 | $TEXT$ space during PIC generation. Instead place all constant | |
9362 | data into the $PRIVATE$ subspace (this reduces sharing, but it | |
9363 | works correctly). */ | |
9364 | readonly_data_section = flag_pic ? data_section : som_readonly_data_section; | |
9365 | ||
9366 | /* We must not have a reference to an external symbol defined in a | |
9367 | shared library in a readonly section, else the SOM linker will | |
9368 | complain. | |
9369 | ||
9370 | So, we force exception information into the data section. */ | |
9371 | exception_section = data_section; | |
916c9cef | 9372 | } |
9373 | ||
52470889 | 9374 | /* On hpux10, the linker will give an error if we have a reference |
9375 | in the read-only data section to a symbol defined in a shared | |
9376 | library. Therefore, expressions that might require a reloc can | |
9377 | not be placed in the read-only data section. */ | |
9378 | ||
2f14b1f9 | 9379 | static section * |
b572d1a5 | 9380 | pa_select_section (tree exp, int reloc, |
9381 | unsigned HOST_WIDE_INT align ATTRIBUTE_UNUSED) | |
52470889 | 9382 | { |
9383 | if (TREE_CODE (exp) == VAR_DECL | |
9384 | && TREE_READONLY (exp) | |
9385 | && !TREE_THIS_VOLATILE (exp) | |
9386 | && DECL_INITIAL (exp) | |
9387 | && (DECL_INITIAL (exp) == error_mark_node | |
9388 | || TREE_CONSTANT (DECL_INITIAL (exp))) | |
9389 | && !reloc) | |
916c9cef | 9390 | { |
9391 | if (TARGET_SOM | |
9392 | && DECL_ONE_ONLY (exp) | |
9393 | && !DECL_WEAK (exp)) | |
2f14b1f9 | 9394 | return som_one_only_readonly_data_section; |
916c9cef | 9395 | else |
2f14b1f9 | 9396 | return readonly_data_section; |
916c9cef | 9397 | } |
ce45a448 | 9398 | else if (CONSTANT_CLASS_P (exp) && !reloc) |
2f14b1f9 | 9399 | return readonly_data_section; |
916c9cef | 9400 | else if (TARGET_SOM |
9401 | && TREE_CODE (exp) == VAR_DECL | |
9402 | && DECL_ONE_ONLY (exp) | |
2455c36b | 9403 | && !DECL_WEAK (exp)) |
2f14b1f9 | 9404 | return som_one_only_data_section; |
52470889 | 9405 | else |
2f14b1f9 | 9406 | return data_section; |
52470889 | 9407 | } |
1f3233d1 | 9408 | |
67c1e638 | 9409 | static void |
5c1d8983 | 9410 | pa_globalize_label (FILE *stream, const char *name) |
67c1e638 | 9411 | { |
9412 | /* We only handle DATA objects here, functions are globalized in | |
9413 | ASM_DECLARE_FUNCTION_NAME. */ | |
9414 | if (! FUNCTION_NAME_P (name)) | |
9415 | { | |
9416 | fputs ("\t.EXPORT ", stream); | |
9417 | assemble_name (stream, name); | |
9418 | fputs (",DATA\n", stream); | |
9419 | } | |
9420 | } | |
b8debbe8 | 9421 | |
6644435d | 9422 | /* Worker function for TARGET_STRUCT_VALUE_RTX. */ |
9423 | ||
b8debbe8 | 9424 | static rtx |
9425 | pa_struct_value_rtx (tree fntype ATTRIBUTE_UNUSED, | |
9426 | int incoming ATTRIBUTE_UNUSED) | |
9427 | { | |
9428 | return gen_rtx_REG (Pmode, PA_STRUCT_VALUE_REGNUM); | |
9429 | } | |
9430 | ||
6644435d | 9431 | /* Worker function for TARGET_RETURN_IN_MEMORY. */ |
9432 | ||
b8debbe8 | 9433 | bool |
9434 | pa_return_in_memory (tree type, tree fntype ATTRIBUTE_UNUSED) | |
9435 | { | |
9436 | /* SOM ABI says that objects larger than 64 bits are returned in memory. | |
9437 | PA64 ABI says that objects larger than 128 bits are returned in memory. | |
9438 | Note, int_size_in_bytes can return -1 if the size of the object is | |
9439 | variable or larger than the maximum value that can be expressed as | |
9440 | a HOST_WIDE_INT. It can also return zero for an empty type. The | |
9441 | simplest way to handle variable and empty types is to pass them in | |
9442 | memory. This avoids problems in defining the boundaries of argument | |
9443 | slots, allocating registers, etc. */ | |
9444 | return (int_size_in_bytes (type) > (TARGET_64BIT ? 16 : 8) | |
9445 | || int_size_in_bytes (type) <= 0); | |
9446 | } | |
9447 | ||
5f43b4f6 | 9448 | /* Structure to hold declaration and name of external symbols that are |
9449 | emitted by GCC. We generate a vector of these symbols and output them | |
9450 | at the end of the file if and only if SYMBOL_REF_REFERENCED_P is true. | |
9451 | This avoids putting out names that are never really used. */ | |
9452 | ||
046bfc77 | 9453 | typedef struct extern_symbol GTY(()) |
5f43b4f6 | 9454 | { |
9455 | tree decl; | |
9456 | const char *name; | |
046bfc77 | 9457 | } extern_symbol; |
5f43b4f6 | 9458 | |
9459 | /* Define gc'd vector type for extern_symbol. */ | |
046bfc77 | 9460 | DEF_VEC_O(extern_symbol); |
9461 | DEF_VEC_ALLOC_O(extern_symbol,gc); | |
5f43b4f6 | 9462 | |
9463 | /* Vector of extern_symbol pointers. */ | |
046bfc77 | 9464 | static GTY(()) VEC(extern_symbol,gc) *extern_symbols; |
5f43b4f6 | 9465 | |
9466 | #ifdef ASM_OUTPUT_EXTERNAL_REAL | |
9467 | /* Mark DECL (name NAME) as an external reference (assembler output | |
9468 | file FILE). This saves the names to output at the end of the file | |
9469 | if actually referenced. */ | |
9470 | ||
9471 | void | |
9472 | pa_hpux_asm_output_external (FILE *file, tree decl, const char *name) | |
9473 | { | |
046bfc77 | 9474 | extern_symbol * p = VEC_safe_push (extern_symbol, gc, extern_symbols, NULL); |
5f43b4f6 | 9475 | |
9476 | gcc_assert (file == asm_out_file); | |
9477 | p->decl = decl; | |
9478 | p->name = name; | |
5f43b4f6 | 9479 | } |
9480 | ||
9481 | /* Output text required at the end of an assembler file. | |
9482 | This includes deferred plabels and .import directives for | |
9483 | all external symbols that were actually referenced. */ | |
9484 | ||
9485 | static void | |
9486 | pa_hpux_file_end (void) | |
9487 | { | |
9488 | unsigned int i; | |
046bfc77 | 9489 | extern_symbol *p; |
5f43b4f6 | 9490 | |
bb1bc2ca | 9491 | if (!NO_DEFERRED_PROFILE_COUNTERS) |
9492 | output_deferred_profile_counters (); | |
9493 | ||
5f43b4f6 | 9494 | output_deferred_plabels (); |
9495 | ||
9496 | for (i = 0; VEC_iterate (extern_symbol, extern_symbols, i, p); i++) | |
9497 | { | |
9498 | tree decl = p->decl; | |
9499 | ||
9500 | if (!TREE_ASM_WRITTEN (decl) | |
9501 | && SYMBOL_REF_REFERENCED_P (XEXP (DECL_RTL (decl), 0))) | |
9502 | ASM_OUTPUT_EXTERNAL_REAL (asm_out_file, decl, p->name); | |
9503 | } | |
9504 | ||
046bfc77 | 9505 | VEC_free (extern_symbol, gc, extern_symbols); |
5f43b4f6 | 9506 | } |
9507 | #endif | |
9508 | ||
1f3233d1 | 9509 | #include "gt-pa.h" |