]>
Commit | Line | Data |
---|---|---|
842ae815 | 1 | /* Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 |
2 | Free Software Foundation, Inc. | |
644459d0 | 3 | |
4 | This file is free software; you can redistribute it and/or modify it under | |
5 | the terms of the GNU General Public License as published by the Free | |
038d1e19 | 6 | Software Foundation; either version 3 of the License, or (at your option) |
644459d0 | 7 | any later version. |
8 | ||
9 | This file is distributed in the hope that it will be useful, but WITHOUT | |
10 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 | for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
038d1e19 | 15 | along with GCC; see the file COPYING3. If not see |
16 | <http://www.gnu.org/licenses/>. */ | |
644459d0 | 17 | |
18 | #include "config.h" | |
19 | #include "system.h" | |
20 | #include "coretypes.h" | |
21 | #include "tm.h" | |
22 | #include "rtl.h" | |
23 | #include "regs.h" | |
24 | #include "hard-reg-set.h" | |
644459d0 | 25 | #include "insn-config.h" |
26 | #include "conditions.h" | |
27 | #include "insn-attr.h" | |
28 | #include "flags.h" | |
29 | #include "recog.h" | |
30 | #include "obstack.h" | |
31 | #include "tree.h" | |
32 | #include "expr.h" | |
33 | #include "optabs.h" | |
34 | #include "except.h" | |
35 | #include "function.h" | |
36 | #include "output.h" | |
37 | #include "basic-block.h" | |
38 | #include "integrate.h" | |
0b205f4c | 39 | #include "diagnostic-core.h" |
644459d0 | 40 | #include "ggc.h" |
41 | #include "hashtab.h" | |
42 | #include "tm_p.h" | |
43 | #include "target.h" | |
44 | #include "target-def.h" | |
45 | #include "langhooks.h" | |
46 | #include "reload.h" | |
47 | #include "cfglayout.h" | |
48 | #include "sched-int.h" | |
49 | #include "params.h" | |
644459d0 | 50 | #include "machmode.h" |
75a70cf9 | 51 | #include "gimple.h" |
644459d0 | 52 | #include "tm-constrs.h" |
d52fd16a | 53 | #include "ddg.h" |
5a976006 | 54 | #include "sbitmap.h" |
55 | #include "timevar.h" | |
56 | #include "df.h" | |
6352eedf | 57 | |
58 | /* Builtin types, data and prototypes. */ | |
c2233b46 | 59 | |
60 | enum spu_builtin_type_index | |
61 | { | |
62 | SPU_BTI_END_OF_PARAMS, | |
63 | ||
64 | /* We create new type nodes for these. */ | |
65 | SPU_BTI_V16QI, | |
66 | SPU_BTI_V8HI, | |
67 | SPU_BTI_V4SI, | |
68 | SPU_BTI_V2DI, | |
69 | SPU_BTI_V4SF, | |
70 | SPU_BTI_V2DF, | |
71 | SPU_BTI_UV16QI, | |
72 | SPU_BTI_UV8HI, | |
73 | SPU_BTI_UV4SI, | |
74 | SPU_BTI_UV2DI, | |
75 | ||
76 | /* A 16-byte type. (Implemented with V16QI_type_node) */ | |
77 | SPU_BTI_QUADWORD, | |
78 | ||
79 | /* These all correspond to intSI_type_node */ | |
80 | SPU_BTI_7, | |
81 | SPU_BTI_S7, | |
82 | SPU_BTI_U7, | |
83 | SPU_BTI_S10, | |
84 | SPU_BTI_S10_4, | |
85 | SPU_BTI_U14, | |
86 | SPU_BTI_16, | |
87 | SPU_BTI_S16, | |
88 | SPU_BTI_S16_2, | |
89 | SPU_BTI_U16, | |
90 | SPU_BTI_U16_2, | |
91 | SPU_BTI_U18, | |
92 | ||
93 | /* These correspond to the standard types */ | |
94 | SPU_BTI_INTQI, | |
95 | SPU_BTI_INTHI, | |
96 | SPU_BTI_INTSI, | |
97 | SPU_BTI_INTDI, | |
98 | ||
99 | SPU_BTI_UINTQI, | |
100 | SPU_BTI_UINTHI, | |
101 | SPU_BTI_UINTSI, | |
102 | SPU_BTI_UINTDI, | |
103 | ||
104 | SPU_BTI_FLOAT, | |
105 | SPU_BTI_DOUBLE, | |
106 | ||
107 | SPU_BTI_VOID, | |
108 | SPU_BTI_PTR, | |
109 | ||
110 | SPU_BTI_MAX | |
111 | }; | |
112 | ||
113 | #define V16QI_type_node (spu_builtin_types[SPU_BTI_V16QI]) | |
114 | #define V8HI_type_node (spu_builtin_types[SPU_BTI_V8HI]) | |
115 | #define V4SI_type_node (spu_builtin_types[SPU_BTI_V4SI]) | |
116 | #define V2DI_type_node (spu_builtin_types[SPU_BTI_V2DI]) | |
117 | #define V4SF_type_node (spu_builtin_types[SPU_BTI_V4SF]) | |
118 | #define V2DF_type_node (spu_builtin_types[SPU_BTI_V2DF]) | |
119 | #define unsigned_V16QI_type_node (spu_builtin_types[SPU_BTI_UV16QI]) | |
120 | #define unsigned_V8HI_type_node (spu_builtin_types[SPU_BTI_UV8HI]) | |
121 | #define unsigned_V4SI_type_node (spu_builtin_types[SPU_BTI_UV4SI]) | |
122 | #define unsigned_V2DI_type_node (spu_builtin_types[SPU_BTI_UV2DI]) | |
123 | ||
124 | static GTY(()) tree spu_builtin_types[SPU_BTI_MAX]; | |
125 | ||
6352eedf | 126 | struct spu_builtin_range |
127 | { | |
128 | int low, high; | |
129 | }; | |
130 | ||
131 | static struct spu_builtin_range spu_builtin_range[] = { | |
132 | {-0x40ll, 0x7fll}, /* SPU_BTI_7 */ | |
133 | {-0x40ll, 0x3fll}, /* SPU_BTI_S7 */ | |
134 | {0ll, 0x7fll}, /* SPU_BTI_U7 */ | |
135 | {-0x200ll, 0x1ffll}, /* SPU_BTI_S10 */ | |
136 | {-0x2000ll, 0x1fffll}, /* SPU_BTI_S10_4 */ | |
137 | {0ll, 0x3fffll}, /* SPU_BTI_U14 */ | |
138 | {-0x8000ll, 0xffffll}, /* SPU_BTI_16 */ | |
139 | {-0x8000ll, 0x7fffll}, /* SPU_BTI_S16 */ | |
140 | {-0x20000ll, 0x1ffffll}, /* SPU_BTI_S16_2 */ | |
141 | {0ll, 0xffffll}, /* SPU_BTI_U16 */ | |
142 | {0ll, 0x3ffffll}, /* SPU_BTI_U16_2 */ | |
143 | {0ll, 0x3ffffll}, /* SPU_BTI_U18 */ | |
144 | }; | |
145 | ||
644459d0 | 146 | \f |
147 | /* Target specific attribute specifications. */ | |
148 | char regs_ever_allocated[FIRST_PSEUDO_REGISTER]; | |
149 | ||
150 | /* Prototypes and external defs. */ | |
4c834714 | 151 | static void spu_option_override (void); |
686e2769 | 152 | static void spu_option_default_params (void); |
644459d0 | 153 | static void spu_init_builtins (void); |
e6925042 | 154 | static tree spu_builtin_decl (unsigned, bool); |
b62e30b8 | 155 | static bool spu_scalar_mode_supported_p (enum machine_mode mode); |
156 | static bool spu_vector_mode_supported_p (enum machine_mode mode); | |
fd50b071 | 157 | static bool spu_legitimate_address_p (enum machine_mode, rtx, bool); |
6cf5579e | 158 | static bool spu_addr_space_legitimate_address_p (enum machine_mode, rtx, |
159 | bool, addr_space_t); | |
644459d0 | 160 | static rtx adjust_operand (rtx op, HOST_WIDE_INT * start); |
161 | static rtx get_pic_reg (void); | |
162 | static int need_to_save_reg (int regno, int saving); | |
163 | static rtx frame_emit_store (int regno, rtx addr, HOST_WIDE_INT offset); | |
164 | static rtx frame_emit_load (int regno, rtx addr, HOST_WIDE_INT offset); | |
165 | static rtx frame_emit_add_imm (rtx dst, rtx src, HOST_WIDE_INT imm, | |
166 | rtx scratch); | |
167 | static void emit_nop_for_insn (rtx insn); | |
168 | static bool insn_clobbers_hbr (rtx insn); | |
169 | static void spu_emit_branch_hint (rtx before, rtx branch, rtx target, | |
5a976006 | 170 | int distance, sbitmap blocks); |
5474166e | 171 | static rtx spu_emit_vector_compare (enum rtx_code rcode, rtx op0, rtx op1, |
172 | enum machine_mode dmode); | |
644459d0 | 173 | static rtx get_branch_target (rtx branch); |
644459d0 | 174 | static void spu_machine_dependent_reorg (void); |
175 | static int spu_sched_issue_rate (void); | |
176 | static int spu_sched_variable_issue (FILE * dump, int verbose, rtx insn, | |
177 | int can_issue_more); | |
178 | static int get_pipe (rtx insn); | |
644459d0 | 179 | static int spu_sched_adjust_cost (rtx insn, rtx link, rtx dep_insn, int cost); |
5a976006 | 180 | static void spu_sched_init_global (FILE *, int, int); |
181 | static void spu_sched_init (FILE *, int, int); | |
182 | static int spu_sched_reorder (FILE *, int, rtx *, int *, int); | |
644459d0 | 183 | static tree spu_handle_fndecl_attribute (tree * node, tree name, tree args, |
184 | int flags, | |
b62e30b8 | 185 | bool *no_add_attrs); |
644459d0 | 186 | static tree spu_handle_vector_attribute (tree * node, tree name, tree args, |
187 | int flags, | |
b62e30b8 | 188 | bool *no_add_attrs); |
644459d0 | 189 | static int spu_naked_function_p (tree func); |
b62e30b8 | 190 | static bool spu_pass_by_reference (CUMULATIVE_ARGS *cum, enum machine_mode mode, |
191 | const_tree type, bool named); | |
ee9034d4 | 192 | static rtx spu_function_arg (CUMULATIVE_ARGS *cum, enum machine_mode mode, |
193 | const_tree type, bool named); | |
194 | static void spu_function_arg_advance (CUMULATIVE_ARGS *cum, enum machine_mode mode, | |
195 | const_tree type, bool named); | |
644459d0 | 196 | static tree spu_build_builtin_va_list (void); |
8a58ed0a | 197 | static void spu_va_start (tree, rtx); |
75a70cf9 | 198 | static tree spu_gimplify_va_arg_expr (tree valist, tree type, |
199 | gimple_seq * pre_p, gimple_seq * post_p); | |
644459d0 | 200 | static int store_with_one_insn_p (rtx mem); |
644459d0 | 201 | static int mem_is_padded_component_ref (rtx x); |
9d98604b | 202 | static int reg_aligned_for_addr (rtx x); |
644459d0 | 203 | static bool spu_assemble_integer (rtx x, unsigned int size, int aligned_p); |
204 | static void spu_asm_globalize_label (FILE * file, const char *name); | |
b62e30b8 | 205 | static bool spu_rtx_costs (rtx x, int code, int outer_code, |
206 | int *total, bool speed); | |
207 | static bool spu_function_ok_for_sibcall (tree decl, tree exp); | |
644459d0 | 208 | static void spu_init_libfuncs (void); |
fb80456a | 209 | static bool spu_return_in_memory (const_tree type, const_tree fntype); |
c7b91b14 | 210 | static void fix_range (const char *); |
69ced2d6 | 211 | static void spu_encode_section_info (tree, rtx, int); |
41e3a0c7 | 212 | static rtx spu_legitimize_address (rtx, rtx, enum machine_mode); |
6cf5579e | 213 | static rtx spu_addr_space_legitimize_address (rtx, rtx, enum machine_mode, |
214 | addr_space_t); | |
e99f512d | 215 | static tree spu_builtin_mul_widen_even (tree); |
216 | static tree spu_builtin_mul_widen_odd (tree); | |
a76866d3 | 217 | static tree spu_builtin_mask_for_load (void); |
0822b158 | 218 | static int spu_builtin_vectorization_cost (enum vect_cost_for_stmt, tree, int); |
a9f1838b | 219 | static bool spu_vector_alignment_reachable (const_tree, bool); |
a0515226 | 220 | static tree spu_builtin_vec_perm (tree, tree *); |
6cf5579e | 221 | static enum machine_mode spu_addr_space_pointer_mode (addr_space_t); |
222 | static enum machine_mode spu_addr_space_address_mode (addr_space_t); | |
223 | static bool spu_addr_space_subset_p (addr_space_t, addr_space_t); | |
224 | static rtx spu_addr_space_convert (rtx, tree, tree); | |
d52fd16a | 225 | static int spu_sms_res_mii (struct ddg *g); |
5a976006 | 226 | static void asm_file_start (void); |
a08dfd55 | 227 | static unsigned int spu_section_type_flags (tree, const char *, int); |
6cf5579e | 228 | static section *spu_select_section (tree, int, unsigned HOST_WIDE_INT); |
229 | static void spu_unique_section (tree, int); | |
9d98604b | 230 | static rtx spu_expand_load (rtx, rtx, rtx, int); |
e96f2783 | 231 | static void spu_trampoline_init (rtx, tree, rtx); |
b2d7ede1 | 232 | static void spu_conditional_register_usage (void); |
329c1e4e | 233 | static bool spu_ref_may_alias_errno (ao_ref *); |
f17d2d13 | 234 | static void spu_output_mi_thunk (FILE *, tree, HOST_WIDE_INT, |
235 | HOST_WIDE_INT, tree); | |
644459d0 | 236 | |
5474166e | 237 | /* Which instruction set architecture to use. */ |
238 | int spu_arch; | |
239 | /* Which cpu are we tuning for. */ | |
240 | int spu_tune; | |
241 | ||
5a976006 | 242 | /* The hardware requires 8 insns between a hint and the branch it |
243 | effects. This variable describes how many rtl instructions the | |
244 | compiler needs to see before inserting a hint, and then the compiler | |
245 | will insert enough nops to make it at least 8 insns. The default is | |
246 | for the compiler to allow up to 2 nops be emitted. The nops are | |
247 | inserted in pairs, so we round down. */ | |
248 | int spu_hint_dist = (8*4) - (2*4); | |
249 | ||
644459d0 | 250 | enum spu_immediate { |
251 | SPU_NONE, | |
252 | SPU_IL, | |
253 | SPU_ILA, | |
254 | SPU_ILH, | |
255 | SPU_ILHU, | |
256 | SPU_ORI, | |
257 | SPU_ORHI, | |
258 | SPU_ORBI, | |
99369027 | 259 | SPU_IOHL |
644459d0 | 260 | }; |
dea01258 | 261 | enum immediate_class |
262 | { | |
263 | IC_POOL, /* constant pool */ | |
264 | IC_IL1, /* one il* instruction */ | |
265 | IC_IL2, /* both ilhu and iohl instructions */ | |
266 | IC_IL1s, /* one il* instruction */ | |
267 | IC_IL2s, /* both ilhu and iohl instructions */ | |
268 | IC_FSMBI, /* the fsmbi instruction */ | |
269 | IC_CPAT, /* one of the c*d instructions */ | |
5df189be | 270 | IC_FSMBI2 /* fsmbi plus 1 other instruction */ |
dea01258 | 271 | }; |
644459d0 | 272 | |
273 | static enum spu_immediate which_immediate_load (HOST_WIDE_INT val); | |
274 | static enum spu_immediate which_logical_immediate (HOST_WIDE_INT val); | |
dea01258 | 275 | static int cpat_info(unsigned char *arr, int size, int *prun, int *pstart); |
276 | static enum immediate_class classify_immediate (rtx op, | |
277 | enum machine_mode mode); | |
644459d0 | 278 | |
1bd43494 | 279 | static enum machine_mode spu_unwind_word_mode (void); |
280 | ||
ea32e033 | 281 | static enum machine_mode |
282 | spu_libgcc_cmp_return_mode (void); | |
283 | ||
284 | static enum machine_mode | |
285 | spu_libgcc_shift_count_mode (void); | |
6cf5579e | 286 | |
287 | /* Pointer mode for __ea references. */ | |
288 | #define EAmode (spu_ea_model != 32 ? DImode : SImode) | |
289 | ||
ef51d1e3 | 290 | \f |
291 | /* Table of machine attributes. */ | |
292 | static const struct attribute_spec spu_attribute_table[] = | |
293 | { | |
ac86af5d | 294 | /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler, |
295 | affects_type_identity } */ | |
296 | { "naked", 0, 0, true, false, false, spu_handle_fndecl_attribute, | |
297 | false }, | |
298 | { "spu_vector", 0, 0, false, true, false, spu_handle_vector_attribute, | |
299 | false }, | |
300 | { NULL, 0, 0, false, false, false, NULL, false } | |
ef51d1e3 | 301 | }; |
644459d0 | 302 | \f |
303 | /* TARGET overrides. */ | |
304 | ||
6cf5579e | 305 | #undef TARGET_ADDR_SPACE_POINTER_MODE |
306 | #define TARGET_ADDR_SPACE_POINTER_MODE spu_addr_space_pointer_mode | |
307 | ||
308 | #undef TARGET_ADDR_SPACE_ADDRESS_MODE | |
309 | #define TARGET_ADDR_SPACE_ADDRESS_MODE spu_addr_space_address_mode | |
310 | ||
311 | #undef TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P | |
312 | #define TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P \ | |
313 | spu_addr_space_legitimate_address_p | |
314 | ||
315 | #undef TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS | |
316 | #define TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS spu_addr_space_legitimize_address | |
317 | ||
318 | #undef TARGET_ADDR_SPACE_SUBSET_P | |
319 | #define TARGET_ADDR_SPACE_SUBSET_P spu_addr_space_subset_p | |
320 | ||
321 | #undef TARGET_ADDR_SPACE_CONVERT | |
322 | #define TARGET_ADDR_SPACE_CONVERT spu_addr_space_convert | |
323 | ||
644459d0 | 324 | #undef TARGET_INIT_BUILTINS |
325 | #define TARGET_INIT_BUILTINS spu_init_builtins | |
e6925042 | 326 | #undef TARGET_BUILTIN_DECL |
327 | #define TARGET_BUILTIN_DECL spu_builtin_decl | |
644459d0 | 328 | |
644459d0 | 329 | #undef TARGET_EXPAND_BUILTIN |
330 | #define TARGET_EXPAND_BUILTIN spu_expand_builtin | |
331 | ||
1bd43494 | 332 | #undef TARGET_UNWIND_WORD_MODE |
333 | #define TARGET_UNWIND_WORD_MODE spu_unwind_word_mode | |
644459d0 | 334 | |
41e3a0c7 | 335 | #undef TARGET_LEGITIMIZE_ADDRESS |
336 | #define TARGET_LEGITIMIZE_ADDRESS spu_legitimize_address | |
337 | ||
6cf5579e | 338 | /* The current assembler doesn't like .4byte foo@ppu, so use the normal .long |
339 | and .quad for the debugger. When it is known that the assembler is fixed, | |
340 | these can be removed. */ | |
341 | #undef TARGET_ASM_UNALIGNED_SI_OP | |
342 | #define TARGET_ASM_UNALIGNED_SI_OP "\t.long\t" | |
343 | ||
344 | #undef TARGET_ASM_ALIGNED_DI_OP | |
345 | #define TARGET_ASM_ALIGNED_DI_OP "\t.quad\t" | |
346 | ||
644459d0 | 347 | /* The .8byte directive doesn't seem to work well for a 32 bit |
348 | architecture. */ | |
349 | #undef TARGET_ASM_UNALIGNED_DI_OP | |
350 | #define TARGET_ASM_UNALIGNED_DI_OP NULL | |
351 | ||
352 | #undef TARGET_RTX_COSTS | |
353 | #define TARGET_RTX_COSTS spu_rtx_costs | |
354 | ||
355 | #undef TARGET_ADDRESS_COST | |
f529eb25 | 356 | #define TARGET_ADDRESS_COST hook_int_rtx_bool_0 |
644459d0 | 357 | |
358 | #undef TARGET_SCHED_ISSUE_RATE | |
359 | #define TARGET_SCHED_ISSUE_RATE spu_sched_issue_rate | |
360 | ||
5a976006 | 361 | #undef TARGET_SCHED_INIT_GLOBAL |
362 | #define TARGET_SCHED_INIT_GLOBAL spu_sched_init_global | |
363 | ||
364 | #undef TARGET_SCHED_INIT | |
365 | #define TARGET_SCHED_INIT spu_sched_init | |
366 | ||
644459d0 | 367 | #undef TARGET_SCHED_VARIABLE_ISSUE |
368 | #define TARGET_SCHED_VARIABLE_ISSUE spu_sched_variable_issue | |
369 | ||
5a976006 | 370 | #undef TARGET_SCHED_REORDER |
371 | #define TARGET_SCHED_REORDER spu_sched_reorder | |
372 | ||
373 | #undef TARGET_SCHED_REORDER2 | |
374 | #define TARGET_SCHED_REORDER2 spu_sched_reorder | |
644459d0 | 375 | |
376 | #undef TARGET_SCHED_ADJUST_COST | |
377 | #define TARGET_SCHED_ADJUST_COST spu_sched_adjust_cost | |
378 | ||
644459d0 | 379 | #undef TARGET_ATTRIBUTE_TABLE |
380 | #define TARGET_ATTRIBUTE_TABLE spu_attribute_table | |
381 | ||
382 | #undef TARGET_ASM_INTEGER | |
383 | #define TARGET_ASM_INTEGER spu_assemble_integer | |
384 | ||
385 | #undef TARGET_SCALAR_MODE_SUPPORTED_P | |
386 | #define TARGET_SCALAR_MODE_SUPPORTED_P spu_scalar_mode_supported_p | |
387 | ||
388 | #undef TARGET_VECTOR_MODE_SUPPORTED_P | |
389 | #define TARGET_VECTOR_MODE_SUPPORTED_P spu_vector_mode_supported_p | |
390 | ||
391 | #undef TARGET_FUNCTION_OK_FOR_SIBCALL | |
392 | #define TARGET_FUNCTION_OK_FOR_SIBCALL spu_function_ok_for_sibcall | |
393 | ||
394 | #undef TARGET_ASM_GLOBALIZE_LABEL | |
395 | #define TARGET_ASM_GLOBALIZE_LABEL spu_asm_globalize_label | |
396 | ||
397 | #undef TARGET_PASS_BY_REFERENCE | |
398 | #define TARGET_PASS_BY_REFERENCE spu_pass_by_reference | |
399 | ||
ee9034d4 | 400 | #undef TARGET_FUNCTION_ARG |
401 | #define TARGET_FUNCTION_ARG spu_function_arg | |
402 | ||
403 | #undef TARGET_FUNCTION_ARG_ADVANCE | |
404 | #define TARGET_FUNCTION_ARG_ADVANCE spu_function_arg_advance | |
405 | ||
644459d0 | 406 | #undef TARGET_MUST_PASS_IN_STACK |
407 | #define TARGET_MUST_PASS_IN_STACK must_pass_in_stack_var_size | |
408 | ||
409 | #undef TARGET_BUILD_BUILTIN_VA_LIST | |
410 | #define TARGET_BUILD_BUILTIN_VA_LIST spu_build_builtin_va_list | |
411 | ||
8a58ed0a | 412 | #undef TARGET_EXPAND_BUILTIN_VA_START |
413 | #define TARGET_EXPAND_BUILTIN_VA_START spu_va_start | |
414 | ||
644459d0 | 415 | #undef TARGET_SETUP_INCOMING_VARARGS |
416 | #define TARGET_SETUP_INCOMING_VARARGS spu_setup_incoming_varargs | |
417 | ||
418 | #undef TARGET_MACHINE_DEPENDENT_REORG | |
419 | #define TARGET_MACHINE_DEPENDENT_REORG spu_machine_dependent_reorg | |
420 | ||
421 | #undef TARGET_GIMPLIFY_VA_ARG_EXPR | |
422 | #define TARGET_GIMPLIFY_VA_ARG_EXPR spu_gimplify_va_arg_expr | |
423 | ||
644459d0 | 424 | #undef TARGET_INIT_LIBFUNCS |
425 | #define TARGET_INIT_LIBFUNCS spu_init_libfuncs | |
426 | ||
427 | #undef TARGET_RETURN_IN_MEMORY | |
428 | #define TARGET_RETURN_IN_MEMORY spu_return_in_memory | |
429 | ||
69ced2d6 | 430 | #undef TARGET_ENCODE_SECTION_INFO |
431 | #define TARGET_ENCODE_SECTION_INFO spu_encode_section_info | |
432 | ||
e99f512d | 433 | #undef TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN |
434 | #define TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN spu_builtin_mul_widen_even | |
435 | ||
436 | #undef TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD | |
437 | #define TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD spu_builtin_mul_widen_odd | |
438 | ||
a76866d3 | 439 | #undef TARGET_VECTORIZE_BUILTIN_MASK_FOR_LOAD |
440 | #define TARGET_VECTORIZE_BUILTIN_MASK_FOR_LOAD spu_builtin_mask_for_load | |
441 | ||
a28df51d | 442 | #undef TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST |
443 | #define TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST spu_builtin_vectorization_cost | |
444 | ||
202d6e5f | 445 | #undef TARGET_VECTORIZE_VECTOR_ALIGNMENT_REACHABLE |
446 | #define TARGET_VECTORIZE_VECTOR_ALIGNMENT_REACHABLE spu_vector_alignment_reachable | |
0e87db76 | 447 | |
a0515226 | 448 | #undef TARGET_VECTORIZE_BUILTIN_VEC_PERM |
449 | #define TARGET_VECTORIZE_BUILTIN_VEC_PERM spu_builtin_vec_perm | |
450 | ||
ea32e033 | 451 | #undef TARGET_LIBGCC_CMP_RETURN_MODE |
452 | #define TARGET_LIBGCC_CMP_RETURN_MODE spu_libgcc_cmp_return_mode | |
453 | ||
454 | #undef TARGET_LIBGCC_SHIFT_COUNT_MODE | |
455 | #define TARGET_LIBGCC_SHIFT_COUNT_MODE spu_libgcc_shift_count_mode | |
456 | ||
d52fd16a | 457 | #undef TARGET_SCHED_SMS_RES_MII |
458 | #define TARGET_SCHED_SMS_RES_MII spu_sms_res_mii | |
459 | ||
5a976006 | 460 | #undef TARGET_ASM_FILE_START |
461 | #define TARGET_ASM_FILE_START asm_file_start | |
462 | ||
a08dfd55 | 463 | #undef TARGET_SECTION_TYPE_FLAGS |
464 | #define TARGET_SECTION_TYPE_FLAGS spu_section_type_flags | |
465 | ||
6cf5579e | 466 | #undef TARGET_ASM_SELECT_SECTION |
467 | #define TARGET_ASM_SELECT_SECTION spu_select_section | |
468 | ||
469 | #undef TARGET_ASM_UNIQUE_SECTION | |
470 | #define TARGET_ASM_UNIQUE_SECTION spu_unique_section | |
471 | ||
fd50b071 | 472 | #undef TARGET_LEGITIMATE_ADDRESS_P |
473 | #define TARGET_LEGITIMATE_ADDRESS_P spu_legitimate_address_p | |
474 | ||
ca316360 | 475 | #undef TARGET_LEGITIMATE_CONSTANT_P |
476 | #define TARGET_LEGITIMATE_CONSTANT_P spu_legitimate_constant_p | |
477 | ||
e96f2783 | 478 | #undef TARGET_TRAMPOLINE_INIT |
479 | #define TARGET_TRAMPOLINE_INIT spu_trampoline_init | |
480 | ||
4c834714 | 481 | #undef TARGET_OPTION_OVERRIDE |
482 | #define TARGET_OPTION_OVERRIDE spu_option_override | |
483 | ||
686e2769 | 484 | #undef TARGET_OPTION_DEFAULT_PARAMS |
485 | #define TARGET_OPTION_DEFAULT_PARAMS spu_option_default_params | |
486 | ||
b2d7ede1 | 487 | #undef TARGET_CONDITIONAL_REGISTER_USAGE |
488 | #define TARGET_CONDITIONAL_REGISTER_USAGE spu_conditional_register_usage | |
489 | ||
329c1e4e | 490 | #undef TARGET_REF_MAY_ALIAS_ERRNO |
491 | #define TARGET_REF_MAY_ALIAS_ERRNO spu_ref_may_alias_errno | |
492 | ||
f17d2d13 | 493 | #undef TARGET_ASM_OUTPUT_MI_THUNK |
494 | #define TARGET_ASM_OUTPUT_MI_THUNK spu_output_mi_thunk | |
495 | #undef TARGET_ASM_CAN_OUTPUT_MI_THUNK | |
496 | #define TARGET_ASM_CAN_OUTPUT_MI_THUNK hook_bool_const_tree_hwi_hwi_const_tree_true | |
497 | ||
8a42230a | 498 | /* Variable tracking should be run after all optimizations which |
499 | change order of insns. It also needs a valid CFG. */ | |
500 | #undef TARGET_DELAY_VARTRACK | |
501 | #define TARGET_DELAY_VARTRACK true | |
502 | ||
644459d0 | 503 | struct gcc_target targetm = TARGET_INITIALIZER; |
504 | ||
686e2769 | 505 | /* Implement TARGET_OPTION_DEFAULT_PARAMS. */ |
506 | static void | |
507 | spu_option_default_params (void) | |
508 | { | |
509 | /* Override some of the default param values. With so many registers | |
510 | larger values are better for these params. */ | |
511 | set_default_param_value (PARAM_MAX_PENDING_LIST_LENGTH, 128); | |
512 | } | |
513 | ||
4c834714 | 514 | /* Implement TARGET_OPTION_OVERRIDE. */ |
515 | static void | |
516 | spu_option_override (void) | |
644459d0 | 517 | { |
14d408d9 | 518 | /* Small loops will be unpeeled at -O3. For SPU it is more important |
519 | to keep code small by default. */ | |
686e2769 | 520 | if (!flag_unroll_loops && !flag_peel_loops) |
e0b840fc | 521 | maybe_set_param_value (PARAM_MAX_COMPLETELY_PEEL_TIMES, 4, |
56f280c4 | 522 | global_options.x_param_values, |
523 | global_options_set.x_param_values); | |
14d408d9 | 524 | |
644459d0 | 525 | flag_omit_frame_pointer = 1; |
526 | ||
5a976006 | 527 | /* Functions must be 8 byte aligned so we correctly handle dual issue */ |
644459d0 | 528 | if (align_functions < 8) |
529 | align_functions = 8; | |
c7b91b14 | 530 | |
5a976006 | 531 | spu_hint_dist = 8*4 - spu_max_nops*4; |
532 | if (spu_hint_dist < 0) | |
533 | spu_hint_dist = 0; | |
534 | ||
c7b91b14 | 535 | if (spu_fixed_range_string) |
536 | fix_range (spu_fixed_range_string); | |
5474166e | 537 | |
538 | /* Determine processor architectural level. */ | |
539 | if (spu_arch_string) | |
540 | { | |
541 | if (strcmp (&spu_arch_string[0], "cell") == 0) | |
542 | spu_arch = PROCESSOR_CELL; | |
543 | else if (strcmp (&spu_arch_string[0], "celledp") == 0) | |
544 | spu_arch = PROCESSOR_CELLEDP; | |
545 | else | |
8e181c9d | 546 | error ("bad value (%s) for -march= switch", spu_arch_string); |
5474166e | 547 | } |
548 | ||
549 | /* Determine processor to tune for. */ | |
550 | if (spu_tune_string) | |
551 | { | |
552 | if (strcmp (&spu_tune_string[0], "cell") == 0) | |
553 | spu_tune = PROCESSOR_CELL; | |
554 | else if (strcmp (&spu_tune_string[0], "celledp") == 0) | |
555 | spu_tune = PROCESSOR_CELLEDP; | |
556 | else | |
8e181c9d | 557 | error ("bad value (%s) for -mtune= switch", spu_tune_string); |
5474166e | 558 | } |
98bbec1e | 559 | |
13684256 | 560 | /* Change defaults according to the processor architecture. */ |
561 | if (spu_arch == PROCESSOR_CELLEDP) | |
562 | { | |
563 | /* If no command line option has been otherwise specified, change | |
564 | the default to -mno-safe-hints on celledp -- only the original | |
565 | Cell/B.E. processors require this workaround. */ | |
566 | if (!(target_flags_explicit & MASK_SAFE_HINTS)) | |
567 | target_flags &= ~MASK_SAFE_HINTS; | |
568 | } | |
569 | ||
98bbec1e | 570 | REAL_MODE_FORMAT (SFmode) = &spu_single_format; |
644459d0 | 571 | } |
572 | \f | |
573 | /* Handle an attribute requiring a FUNCTION_DECL; arguments as in | |
574 | struct attribute_spec.handler. */ | |
575 | ||
644459d0 | 576 | /* True if MODE is valid for the target. By "valid", we mean able to |
577 | be manipulated in non-trivial ways. In particular, this means all | |
578 | the arithmetic is supported. */ | |
579 | static bool | |
580 | spu_scalar_mode_supported_p (enum machine_mode mode) | |
581 | { | |
582 | switch (mode) | |
583 | { | |
584 | case QImode: | |
585 | case HImode: | |
586 | case SImode: | |
587 | case SFmode: | |
588 | case DImode: | |
589 | case TImode: | |
590 | case DFmode: | |
591 | return true; | |
592 | ||
593 | default: | |
594 | return false; | |
595 | } | |
596 | } | |
597 | ||
598 | /* Similarly for vector modes. "Supported" here is less strict. At | |
599 | least some operations are supported; need to check optabs or builtins | |
600 | for further details. */ | |
601 | static bool | |
602 | spu_vector_mode_supported_p (enum machine_mode mode) | |
603 | { | |
604 | switch (mode) | |
605 | { | |
606 | case V16QImode: | |
607 | case V8HImode: | |
608 | case V4SImode: | |
609 | case V2DImode: | |
610 | case V4SFmode: | |
611 | case V2DFmode: | |
612 | return true; | |
613 | ||
614 | default: | |
615 | return false; | |
616 | } | |
617 | } | |
618 | ||
619 | /* GCC assumes that in a paradoxical SUBREG the inner mode occupies the | |
620 | least significant bytes of the outer mode. This function returns | |
621 | TRUE for the SUBREG's where this is correct. */ | |
622 | int | |
623 | valid_subreg (rtx op) | |
624 | { | |
625 | enum machine_mode om = GET_MODE (op); | |
626 | enum machine_mode im = GET_MODE (SUBREG_REG (op)); | |
627 | return om != VOIDmode && im != VOIDmode | |
628 | && (GET_MODE_SIZE (im) == GET_MODE_SIZE (om) | |
38aca5eb | 629 | || (GET_MODE_SIZE (im) <= 4 && GET_MODE_SIZE (om) <= 4) |
630 | || (GET_MODE_SIZE (im) >= 16 && GET_MODE_SIZE (om) >= 16)); | |
644459d0 | 631 | } |
632 | ||
633 | /* When insv and ext[sz]v ar passed a TI SUBREG, we want to strip it off | |
fa7637bd | 634 | and adjust the start offset. */ |
644459d0 | 635 | static rtx |
636 | adjust_operand (rtx op, HOST_WIDE_INT * start) | |
637 | { | |
638 | enum machine_mode mode; | |
639 | int op_size; | |
38aca5eb | 640 | /* Strip any paradoxical SUBREG. */ |
641 | if (GET_CODE (op) == SUBREG | |
642 | && (GET_MODE_BITSIZE (GET_MODE (op)) | |
643 | > GET_MODE_BITSIZE (GET_MODE (SUBREG_REG (op))))) | |
644459d0 | 644 | { |
645 | if (start) | |
646 | *start -= | |
647 | GET_MODE_BITSIZE (GET_MODE (op)) - | |
648 | GET_MODE_BITSIZE (GET_MODE (SUBREG_REG (op))); | |
649 | op = SUBREG_REG (op); | |
650 | } | |
651 | /* If it is smaller than SI, assure a SUBREG */ | |
652 | op_size = GET_MODE_BITSIZE (GET_MODE (op)); | |
653 | if (op_size < 32) | |
654 | { | |
655 | if (start) | |
656 | *start += 32 - op_size; | |
657 | op_size = 32; | |
658 | } | |
659 | /* If it is not a MODE_INT (and/or it is smaller than SI) add a SUBREG. */ | |
660 | mode = mode_for_size (op_size, MODE_INT, 0); | |
661 | if (mode != GET_MODE (op)) | |
662 | op = gen_rtx_SUBREG (mode, op, 0); | |
663 | return op; | |
664 | } | |
665 | ||
666 | void | |
667 | spu_expand_extv (rtx ops[], int unsignedp) | |
668 | { | |
9d98604b | 669 | rtx dst = ops[0], src = ops[1]; |
644459d0 | 670 | HOST_WIDE_INT width = INTVAL (ops[2]); |
671 | HOST_WIDE_INT start = INTVAL (ops[3]); | |
9d98604b | 672 | HOST_WIDE_INT align_mask; |
673 | rtx s0, s1, mask, r0; | |
644459d0 | 674 | |
9d98604b | 675 | gcc_assert (REG_P (dst) && GET_MODE (dst) == TImode); |
644459d0 | 676 | |
9d98604b | 677 | if (MEM_P (src)) |
644459d0 | 678 | { |
9d98604b | 679 | /* First, determine if we need 1 TImode load or 2. We need only 1 |
680 | if the bits being extracted do not cross the alignment boundary | |
681 | as determined by the MEM and its address. */ | |
682 | ||
683 | align_mask = -MEM_ALIGN (src); | |
684 | if ((start & align_mask) == ((start + width - 1) & align_mask)) | |
644459d0 | 685 | { |
9d98604b | 686 | /* Alignment is sufficient for 1 load. */ |
687 | s0 = gen_reg_rtx (TImode); | |
688 | r0 = spu_expand_load (s0, 0, src, start / 8); | |
689 | start &= 7; | |
690 | if (r0) | |
691 | emit_insn (gen_rotqby_ti (s0, s0, r0)); | |
644459d0 | 692 | } |
9d98604b | 693 | else |
694 | { | |
695 | /* Need 2 loads. */ | |
696 | s0 = gen_reg_rtx (TImode); | |
697 | s1 = gen_reg_rtx (TImode); | |
698 | r0 = spu_expand_load (s0, s1, src, start / 8); | |
699 | start &= 7; | |
700 | ||
701 | gcc_assert (start + width <= 128); | |
702 | if (r0) | |
703 | { | |
704 | rtx r1 = gen_reg_rtx (SImode); | |
705 | mask = gen_reg_rtx (TImode); | |
706 | emit_move_insn (mask, GEN_INT (-1)); | |
707 | emit_insn (gen_rotqby_ti (s0, s0, r0)); | |
708 | emit_insn (gen_rotqby_ti (s1, s1, r0)); | |
709 | if (GET_CODE (r0) == CONST_INT) | |
710 | r1 = GEN_INT (INTVAL (r0) & 15); | |
711 | else | |
712 | emit_insn (gen_andsi3 (r1, r0, GEN_INT (15))); | |
713 | emit_insn (gen_shlqby_ti (mask, mask, r1)); | |
714 | emit_insn (gen_selb (s0, s1, s0, mask)); | |
715 | } | |
716 | } | |
717 | ||
718 | } | |
719 | else if (GET_CODE (src) == SUBREG) | |
720 | { | |
721 | rtx r = SUBREG_REG (src); | |
722 | gcc_assert (REG_P (r) && SCALAR_INT_MODE_P (GET_MODE (r))); | |
723 | s0 = gen_reg_rtx (TImode); | |
724 | if (GET_MODE_SIZE (GET_MODE (r)) < GET_MODE_SIZE (TImode)) | |
725 | emit_insn (gen_rtx_SET (VOIDmode, s0, gen_rtx_ZERO_EXTEND (TImode, r))); | |
726 | else | |
727 | emit_move_insn (s0, src); | |
728 | } | |
729 | else | |
730 | { | |
731 | gcc_assert (REG_P (src) && GET_MODE (src) == TImode); | |
732 | s0 = gen_reg_rtx (TImode); | |
733 | emit_move_insn (s0, src); | |
644459d0 | 734 | } |
735 | ||
9d98604b | 736 | /* Now s0 is TImode and contains the bits to extract at start. */ |
737 | ||
738 | if (start) | |
739 | emit_insn (gen_rotlti3 (s0, s0, GEN_INT (start))); | |
740 | ||
741 | if (128 - width) | |
f5ff0b21 | 742 | s0 = expand_shift (RSHIFT_EXPR, TImode, s0, 128 - width, s0, unsignedp); |
644459d0 | 743 | |
9d98604b | 744 | emit_move_insn (dst, s0); |
644459d0 | 745 | } |
746 | ||
747 | void | |
748 | spu_expand_insv (rtx ops[]) | |
749 | { | |
750 | HOST_WIDE_INT width = INTVAL (ops[1]); | |
751 | HOST_WIDE_INT start = INTVAL (ops[2]); | |
752 | HOST_WIDE_INT maskbits; | |
4cbad5bb | 753 | enum machine_mode dst_mode; |
644459d0 | 754 | rtx dst = ops[0], src = ops[3]; |
4cbad5bb | 755 | int dst_size; |
644459d0 | 756 | rtx mask; |
757 | rtx shift_reg; | |
758 | int shift; | |
759 | ||
760 | ||
761 | if (GET_CODE (ops[0]) == MEM) | |
762 | dst = gen_reg_rtx (TImode); | |
763 | else | |
764 | dst = adjust_operand (dst, &start); | |
765 | dst_mode = GET_MODE (dst); | |
766 | dst_size = GET_MODE_BITSIZE (GET_MODE (dst)); | |
767 | ||
768 | if (CONSTANT_P (src)) | |
769 | { | |
770 | enum machine_mode m = | |
771 | (width <= 32 ? SImode : width <= 64 ? DImode : TImode); | |
772 | src = force_reg (m, convert_to_mode (m, src, 0)); | |
773 | } | |
774 | src = adjust_operand (src, 0); | |
644459d0 | 775 | |
776 | mask = gen_reg_rtx (dst_mode); | |
777 | shift_reg = gen_reg_rtx (dst_mode); | |
778 | shift = dst_size - start - width; | |
779 | ||
780 | /* It's not safe to use subreg here because the compiler assumes | |
781 | that the SUBREG_REG is right justified in the SUBREG. */ | |
782 | convert_move (shift_reg, src, 1); | |
783 | ||
784 | if (shift > 0) | |
785 | { | |
786 | switch (dst_mode) | |
787 | { | |
788 | case SImode: | |
789 | emit_insn (gen_ashlsi3 (shift_reg, shift_reg, GEN_INT (shift))); | |
790 | break; | |
791 | case DImode: | |
792 | emit_insn (gen_ashldi3 (shift_reg, shift_reg, GEN_INT (shift))); | |
793 | break; | |
794 | case TImode: | |
795 | emit_insn (gen_ashlti3 (shift_reg, shift_reg, GEN_INT (shift))); | |
796 | break; | |
797 | default: | |
798 | abort (); | |
799 | } | |
800 | } | |
801 | else if (shift < 0) | |
802 | abort (); | |
803 | ||
804 | switch (dst_size) | |
805 | { | |
806 | case 32: | |
807 | maskbits = (-1ll << (32 - width - start)); | |
808 | if (start) | |
809 | maskbits += (1ll << (32 - start)); | |
810 | emit_move_insn (mask, GEN_INT (maskbits)); | |
811 | break; | |
812 | case 64: | |
813 | maskbits = (-1ll << (64 - width - start)); | |
814 | if (start) | |
815 | maskbits += (1ll << (64 - start)); | |
816 | emit_move_insn (mask, GEN_INT (maskbits)); | |
817 | break; | |
818 | case 128: | |
819 | { | |
820 | unsigned char arr[16]; | |
821 | int i = start / 8; | |
822 | memset (arr, 0, sizeof (arr)); | |
823 | arr[i] = 0xff >> (start & 7); | |
824 | for (i++; i <= (start + width - 1) / 8; i++) | |
825 | arr[i] = 0xff; | |
826 | arr[i - 1] &= 0xff << (7 - ((start + width - 1) & 7)); | |
827 | emit_move_insn (mask, array_to_constant (TImode, arr)); | |
828 | } | |
829 | break; | |
830 | default: | |
831 | abort (); | |
832 | } | |
833 | if (GET_CODE (ops[0]) == MEM) | |
834 | { | |
644459d0 | 835 | rtx low = gen_reg_rtx (SImode); |
644459d0 | 836 | rtx rotl = gen_reg_rtx (SImode); |
837 | rtx mask0 = gen_reg_rtx (TImode); | |
9d98604b | 838 | rtx addr; |
839 | rtx addr0; | |
840 | rtx addr1; | |
644459d0 | 841 | rtx mem; |
842 | ||
9d98604b | 843 | addr = force_reg (Pmode, XEXP (ops[0], 0)); |
844 | addr0 = gen_rtx_AND (Pmode, addr, GEN_INT (-16)); | |
644459d0 | 845 | emit_insn (gen_andsi3 (low, addr, GEN_INT (15))); |
846 | emit_insn (gen_negsi2 (rotl, low)); | |
847 | emit_insn (gen_rotqby_ti (shift_reg, shift_reg, rotl)); | |
848 | emit_insn (gen_rotqmby_ti (mask0, mask, rotl)); | |
9d98604b | 849 | mem = change_address (ops[0], TImode, addr0); |
644459d0 | 850 | set_mem_alias_set (mem, 0); |
851 | emit_move_insn (dst, mem); | |
852 | emit_insn (gen_selb (dst, dst, shift_reg, mask0)); | |
644459d0 | 853 | if (start + width > MEM_ALIGN (ops[0])) |
854 | { | |
855 | rtx shl = gen_reg_rtx (SImode); | |
856 | rtx mask1 = gen_reg_rtx (TImode); | |
857 | rtx dst1 = gen_reg_rtx (TImode); | |
858 | rtx mem1; | |
9d98604b | 859 | addr1 = plus_constant (addr, 16); |
860 | addr1 = gen_rtx_AND (Pmode, addr1, GEN_INT (-16)); | |
644459d0 | 861 | emit_insn (gen_subsi3 (shl, GEN_INT (16), low)); |
862 | emit_insn (gen_shlqby_ti (mask1, mask, shl)); | |
9d98604b | 863 | mem1 = change_address (ops[0], TImode, addr1); |
644459d0 | 864 | set_mem_alias_set (mem1, 0); |
865 | emit_move_insn (dst1, mem1); | |
866 | emit_insn (gen_selb (dst1, dst1, shift_reg, mask1)); | |
867 | emit_move_insn (mem1, dst1); | |
868 | } | |
9d98604b | 869 | emit_move_insn (mem, dst); |
644459d0 | 870 | } |
871 | else | |
71cd778d | 872 | emit_insn (gen_selb (dst, copy_rtx (dst), shift_reg, mask)); |
644459d0 | 873 | } |
874 | ||
875 | ||
876 | int | |
877 | spu_expand_block_move (rtx ops[]) | |
878 | { | |
879 | HOST_WIDE_INT bytes, align, offset; | |
880 | rtx src, dst, sreg, dreg, target; | |
881 | int i; | |
882 | if (GET_CODE (ops[2]) != CONST_INT | |
883 | || GET_CODE (ops[3]) != CONST_INT | |
48eb4342 | 884 | || INTVAL (ops[2]) > (HOST_WIDE_INT) (MOVE_RATIO (optimize_insn_for_speed_p ()) * 8)) |
644459d0 | 885 | return 0; |
886 | ||
887 | bytes = INTVAL (ops[2]); | |
888 | align = INTVAL (ops[3]); | |
889 | ||
890 | if (bytes <= 0) | |
891 | return 1; | |
892 | ||
893 | dst = ops[0]; | |
894 | src = ops[1]; | |
895 | ||
896 | if (align == 16) | |
897 | { | |
898 | for (offset = 0; offset + 16 <= bytes; offset += 16) | |
899 | { | |
900 | dst = adjust_address (ops[0], V16QImode, offset); | |
901 | src = adjust_address (ops[1], V16QImode, offset); | |
902 | emit_move_insn (dst, src); | |
903 | } | |
904 | if (offset < bytes) | |
905 | { | |
906 | rtx mask; | |
907 | unsigned char arr[16] = { 0 }; | |
908 | for (i = 0; i < bytes - offset; i++) | |
909 | arr[i] = 0xff; | |
910 | dst = adjust_address (ops[0], V16QImode, offset); | |
911 | src = adjust_address (ops[1], V16QImode, offset); | |
912 | mask = gen_reg_rtx (V16QImode); | |
913 | sreg = gen_reg_rtx (V16QImode); | |
914 | dreg = gen_reg_rtx (V16QImode); | |
915 | target = gen_reg_rtx (V16QImode); | |
916 | emit_move_insn (mask, array_to_constant (V16QImode, arr)); | |
917 | emit_move_insn (dreg, dst); | |
918 | emit_move_insn (sreg, src); | |
919 | emit_insn (gen_selb (target, dreg, sreg, mask)); | |
920 | emit_move_insn (dst, target); | |
921 | } | |
922 | return 1; | |
923 | } | |
924 | return 0; | |
925 | } | |
926 | ||
927 | enum spu_comp_code | |
928 | { SPU_EQ, SPU_GT, SPU_GTU }; | |
929 | ||
5474166e | 930 | int spu_comp_icode[12][3] = { |
931 | {CODE_FOR_ceq_qi, CODE_FOR_cgt_qi, CODE_FOR_clgt_qi}, | |
932 | {CODE_FOR_ceq_hi, CODE_FOR_cgt_hi, CODE_FOR_clgt_hi}, | |
933 | {CODE_FOR_ceq_si, CODE_FOR_cgt_si, CODE_FOR_clgt_si}, | |
934 | {CODE_FOR_ceq_di, CODE_FOR_cgt_di, CODE_FOR_clgt_di}, | |
935 | {CODE_FOR_ceq_ti, CODE_FOR_cgt_ti, CODE_FOR_clgt_ti}, | |
936 | {CODE_FOR_ceq_sf, CODE_FOR_cgt_sf, 0}, | |
937 | {CODE_FOR_ceq_df, CODE_FOR_cgt_df, 0}, | |
938 | {CODE_FOR_ceq_v16qi, CODE_FOR_cgt_v16qi, CODE_FOR_clgt_v16qi}, | |
939 | {CODE_FOR_ceq_v8hi, CODE_FOR_cgt_v8hi, CODE_FOR_clgt_v8hi}, | |
940 | {CODE_FOR_ceq_v4si, CODE_FOR_cgt_v4si, CODE_FOR_clgt_v4si}, | |
941 | {CODE_FOR_ceq_v4sf, CODE_FOR_cgt_v4sf, 0}, | |
942 | {CODE_FOR_ceq_v2df, CODE_FOR_cgt_v2df, 0}, | |
644459d0 | 943 | }; |
944 | ||
945 | /* Generate a compare for CODE. Return a brand-new rtx that represents | |
946 | the result of the compare. GCC can figure this out too if we don't | |
947 | provide all variations of compares, but GCC always wants to use | |
948 | WORD_MODE, we can generate better code in most cases if we do it | |
949 | ourselves. */ | |
950 | void | |
74f4459c | 951 | spu_emit_branch_or_set (int is_set, rtx cmp, rtx operands[]) |
644459d0 | 952 | { |
953 | int reverse_compare = 0; | |
954 | int reverse_test = 0; | |
5d70b918 | 955 | rtx compare_result, eq_result; |
956 | rtx comp_rtx, eq_rtx; | |
644459d0 | 957 | enum machine_mode comp_mode; |
958 | enum machine_mode op_mode; | |
b9c74b4d | 959 | enum spu_comp_code scode, eq_code; |
960 | enum insn_code ior_code; | |
74f4459c | 961 | enum rtx_code code = GET_CODE (cmp); |
962 | rtx op0 = XEXP (cmp, 0); | |
963 | rtx op1 = XEXP (cmp, 1); | |
644459d0 | 964 | int index; |
5d70b918 | 965 | int eq_test = 0; |
644459d0 | 966 | |
74f4459c | 967 | /* When op1 is a CONST_INT change (X >= C) to (X > C-1), |
644459d0 | 968 | and so on, to keep the constant in operand 1. */ |
74f4459c | 969 | if (GET_CODE (op1) == CONST_INT) |
644459d0 | 970 | { |
74f4459c | 971 | HOST_WIDE_INT val = INTVAL (op1) - 1; |
972 | if (trunc_int_for_mode (val, GET_MODE (op0)) == val) | |
644459d0 | 973 | switch (code) |
974 | { | |
975 | case GE: | |
74f4459c | 976 | op1 = GEN_INT (val); |
644459d0 | 977 | code = GT; |
978 | break; | |
979 | case LT: | |
74f4459c | 980 | op1 = GEN_INT (val); |
644459d0 | 981 | code = LE; |
982 | break; | |
983 | case GEU: | |
74f4459c | 984 | op1 = GEN_INT (val); |
644459d0 | 985 | code = GTU; |
986 | break; | |
987 | case LTU: | |
74f4459c | 988 | op1 = GEN_INT (val); |
644459d0 | 989 | code = LEU; |
990 | break; | |
991 | default: | |
992 | break; | |
993 | } | |
994 | } | |
995 | ||
5d70b918 | 996 | comp_mode = SImode; |
74f4459c | 997 | op_mode = GET_MODE (op0); |
5d70b918 | 998 | |
644459d0 | 999 | switch (code) |
1000 | { | |
1001 | case GE: | |
644459d0 | 1002 | scode = SPU_GT; |
07027691 | 1003 | if (HONOR_NANS (op_mode)) |
5d70b918 | 1004 | { |
1005 | reverse_compare = 0; | |
1006 | reverse_test = 0; | |
1007 | eq_test = 1; | |
1008 | eq_code = SPU_EQ; | |
1009 | } | |
1010 | else | |
1011 | { | |
1012 | reverse_compare = 1; | |
1013 | reverse_test = 1; | |
1014 | } | |
644459d0 | 1015 | break; |
1016 | case LE: | |
644459d0 | 1017 | scode = SPU_GT; |
07027691 | 1018 | if (HONOR_NANS (op_mode)) |
5d70b918 | 1019 | { |
1020 | reverse_compare = 1; | |
1021 | reverse_test = 0; | |
1022 | eq_test = 1; | |
1023 | eq_code = SPU_EQ; | |
1024 | } | |
1025 | else | |
1026 | { | |
1027 | reverse_compare = 0; | |
1028 | reverse_test = 1; | |
1029 | } | |
644459d0 | 1030 | break; |
1031 | case LT: | |
1032 | reverse_compare = 1; | |
1033 | reverse_test = 0; | |
1034 | scode = SPU_GT; | |
1035 | break; | |
1036 | case GEU: | |
1037 | reverse_compare = 1; | |
1038 | reverse_test = 1; | |
1039 | scode = SPU_GTU; | |
1040 | break; | |
1041 | case LEU: | |
1042 | reverse_compare = 0; | |
1043 | reverse_test = 1; | |
1044 | scode = SPU_GTU; | |
1045 | break; | |
1046 | case LTU: | |
1047 | reverse_compare = 1; | |
1048 | reverse_test = 0; | |
1049 | scode = SPU_GTU; | |
1050 | break; | |
1051 | case NE: | |
1052 | reverse_compare = 0; | |
1053 | reverse_test = 1; | |
1054 | scode = SPU_EQ; | |
1055 | break; | |
1056 | ||
1057 | case EQ: | |
1058 | scode = SPU_EQ; | |
1059 | break; | |
1060 | case GT: | |
1061 | scode = SPU_GT; | |
1062 | break; | |
1063 | case GTU: | |
1064 | scode = SPU_GTU; | |
1065 | break; | |
1066 | default: | |
1067 | scode = SPU_EQ; | |
1068 | break; | |
1069 | } | |
1070 | ||
644459d0 | 1071 | switch (op_mode) |
1072 | { | |
1073 | case QImode: | |
1074 | index = 0; | |
1075 | comp_mode = QImode; | |
1076 | break; | |
1077 | case HImode: | |
1078 | index = 1; | |
1079 | comp_mode = HImode; | |
1080 | break; | |
1081 | case SImode: | |
1082 | index = 2; | |
1083 | break; | |
1084 | case DImode: | |
1085 | index = 3; | |
1086 | break; | |
1087 | case TImode: | |
1088 | index = 4; | |
1089 | break; | |
1090 | case SFmode: | |
1091 | index = 5; | |
1092 | break; | |
1093 | case DFmode: | |
1094 | index = 6; | |
1095 | break; | |
1096 | case V16QImode: | |
5474166e | 1097 | index = 7; |
1098 | comp_mode = op_mode; | |
1099 | break; | |
644459d0 | 1100 | case V8HImode: |
5474166e | 1101 | index = 8; |
1102 | comp_mode = op_mode; | |
1103 | break; | |
644459d0 | 1104 | case V4SImode: |
5474166e | 1105 | index = 9; |
1106 | comp_mode = op_mode; | |
1107 | break; | |
644459d0 | 1108 | case V4SFmode: |
5474166e | 1109 | index = 10; |
1110 | comp_mode = V4SImode; | |
1111 | break; | |
644459d0 | 1112 | case V2DFmode: |
5474166e | 1113 | index = 11; |
1114 | comp_mode = V2DImode; | |
644459d0 | 1115 | break; |
5474166e | 1116 | case V2DImode: |
644459d0 | 1117 | default: |
1118 | abort (); | |
1119 | } | |
1120 | ||
74f4459c | 1121 | if (GET_MODE (op1) == DFmode |
07027691 | 1122 | && (scode != SPU_GT && scode != SPU_EQ)) |
1123 | abort (); | |
644459d0 | 1124 | |
74f4459c | 1125 | if (is_set == 0 && op1 == const0_rtx |
1126 | && (GET_MODE (op0) == SImode | |
1127 | || GET_MODE (op0) == HImode) && scode == SPU_EQ) | |
644459d0 | 1128 | { |
1129 | /* Don't need to set a register with the result when we are | |
1130 | comparing against zero and branching. */ | |
1131 | reverse_test = !reverse_test; | |
74f4459c | 1132 | compare_result = op0; |
644459d0 | 1133 | } |
1134 | else | |
1135 | { | |
1136 | compare_result = gen_reg_rtx (comp_mode); | |
1137 | ||
1138 | if (reverse_compare) | |
1139 | { | |
74f4459c | 1140 | rtx t = op1; |
1141 | op1 = op0; | |
1142 | op0 = t; | |
644459d0 | 1143 | } |
1144 | ||
1145 | if (spu_comp_icode[index][scode] == 0) | |
1146 | abort (); | |
1147 | ||
1148 | if (!(*insn_data[spu_comp_icode[index][scode]].operand[1].predicate) | |
74f4459c | 1149 | (op0, op_mode)) |
1150 | op0 = force_reg (op_mode, op0); | |
644459d0 | 1151 | if (!(*insn_data[spu_comp_icode[index][scode]].operand[2].predicate) |
74f4459c | 1152 | (op1, op_mode)) |
1153 | op1 = force_reg (op_mode, op1); | |
644459d0 | 1154 | comp_rtx = GEN_FCN (spu_comp_icode[index][scode]) (compare_result, |
74f4459c | 1155 | op0, op1); |
644459d0 | 1156 | if (comp_rtx == 0) |
1157 | abort (); | |
1158 | emit_insn (comp_rtx); | |
1159 | ||
5d70b918 | 1160 | if (eq_test) |
1161 | { | |
1162 | eq_result = gen_reg_rtx (comp_mode); | |
1163 | eq_rtx = GEN_FCN (spu_comp_icode[index][eq_code]) (eq_result, | |
74f4459c | 1164 | op0, op1); |
5d70b918 | 1165 | if (eq_rtx == 0) |
1166 | abort (); | |
1167 | emit_insn (eq_rtx); | |
d6bf3b14 | 1168 | ior_code = optab_handler (ior_optab, comp_mode); |
5d70b918 | 1169 | gcc_assert (ior_code != CODE_FOR_nothing); |
1170 | emit_insn (GEN_FCN (ior_code) | |
1171 | (compare_result, compare_result, eq_result)); | |
1172 | } | |
644459d0 | 1173 | } |
1174 | ||
1175 | if (is_set == 0) | |
1176 | { | |
1177 | rtx bcomp; | |
1178 | rtx loc_ref; | |
1179 | ||
1180 | /* We don't have branch on QI compare insns, so we convert the | |
1181 | QI compare result to a HI result. */ | |
1182 | if (comp_mode == QImode) | |
1183 | { | |
1184 | rtx old_res = compare_result; | |
1185 | compare_result = gen_reg_rtx (HImode); | |
1186 | comp_mode = HImode; | |
1187 | emit_insn (gen_extendqihi2 (compare_result, old_res)); | |
1188 | } | |
1189 | ||
1190 | if (reverse_test) | |
1191 | bcomp = gen_rtx_EQ (comp_mode, compare_result, const0_rtx); | |
1192 | else | |
1193 | bcomp = gen_rtx_NE (comp_mode, compare_result, const0_rtx); | |
1194 | ||
74f4459c | 1195 | loc_ref = gen_rtx_LABEL_REF (VOIDmode, operands[3]); |
644459d0 | 1196 | emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx, |
1197 | gen_rtx_IF_THEN_ELSE (VOIDmode, bcomp, | |
1198 | loc_ref, pc_rtx))); | |
1199 | } | |
1200 | else if (is_set == 2) | |
1201 | { | |
74f4459c | 1202 | rtx target = operands[0]; |
644459d0 | 1203 | int compare_size = GET_MODE_BITSIZE (comp_mode); |
1204 | int target_size = GET_MODE_BITSIZE (GET_MODE (target)); | |
1205 | enum machine_mode mode = mode_for_size (target_size, MODE_INT, 0); | |
1206 | rtx select_mask; | |
1207 | rtx op_t = operands[2]; | |
1208 | rtx op_f = operands[3]; | |
1209 | ||
1210 | /* The result of the comparison can be SI, HI or QI mode. Create a | |
1211 | mask based on that result. */ | |
1212 | if (target_size > compare_size) | |
1213 | { | |
1214 | select_mask = gen_reg_rtx (mode); | |
1215 | emit_insn (gen_extend_compare (select_mask, compare_result)); | |
1216 | } | |
1217 | else if (target_size < compare_size) | |
1218 | select_mask = | |
1219 | gen_rtx_SUBREG (mode, compare_result, | |
1220 | (compare_size - target_size) / BITS_PER_UNIT); | |
1221 | else if (comp_mode != mode) | |
1222 | select_mask = gen_rtx_SUBREG (mode, compare_result, 0); | |
1223 | else | |
1224 | select_mask = compare_result; | |
1225 | ||
1226 | if (GET_MODE (target) != GET_MODE (op_t) | |
1227 | || GET_MODE (target) != GET_MODE (op_f)) | |
1228 | abort (); | |
1229 | ||
1230 | if (reverse_test) | |
1231 | emit_insn (gen_selb (target, op_t, op_f, select_mask)); | |
1232 | else | |
1233 | emit_insn (gen_selb (target, op_f, op_t, select_mask)); | |
1234 | } | |
1235 | else | |
1236 | { | |
74f4459c | 1237 | rtx target = operands[0]; |
644459d0 | 1238 | if (reverse_test) |
1239 | emit_insn (gen_rtx_SET (VOIDmode, compare_result, | |
1240 | gen_rtx_NOT (comp_mode, compare_result))); | |
1241 | if (GET_MODE (target) == SImode && GET_MODE (compare_result) == HImode) | |
1242 | emit_insn (gen_extendhisi2 (target, compare_result)); | |
1243 | else if (GET_MODE (target) == SImode | |
1244 | && GET_MODE (compare_result) == QImode) | |
1245 | emit_insn (gen_extend_compare (target, compare_result)); | |
1246 | else | |
1247 | emit_move_insn (target, compare_result); | |
1248 | } | |
1249 | } | |
1250 | ||
1251 | HOST_WIDE_INT | |
1252 | const_double_to_hwint (rtx x) | |
1253 | { | |
1254 | HOST_WIDE_INT val; | |
1255 | REAL_VALUE_TYPE rv; | |
1256 | if (GET_MODE (x) == SFmode) | |
1257 | { | |
1258 | REAL_VALUE_FROM_CONST_DOUBLE (rv, x); | |
1259 | REAL_VALUE_TO_TARGET_SINGLE (rv, val); | |
1260 | } | |
1261 | else if (GET_MODE (x) == DFmode) | |
1262 | { | |
1263 | long l[2]; | |
1264 | REAL_VALUE_FROM_CONST_DOUBLE (rv, x); | |
1265 | REAL_VALUE_TO_TARGET_DOUBLE (rv, l); | |
1266 | val = l[0]; | |
1267 | val = (val << 32) | (l[1] & 0xffffffff); | |
1268 | } | |
1269 | else | |
1270 | abort (); | |
1271 | return val; | |
1272 | } | |
1273 | ||
1274 | rtx | |
1275 | hwint_to_const_double (enum machine_mode mode, HOST_WIDE_INT v) | |
1276 | { | |
1277 | long tv[2]; | |
1278 | REAL_VALUE_TYPE rv; | |
1279 | gcc_assert (mode == SFmode || mode == DFmode); | |
1280 | ||
1281 | if (mode == SFmode) | |
1282 | tv[0] = (v << 32) >> 32; | |
1283 | else if (mode == DFmode) | |
1284 | { | |
1285 | tv[1] = (v << 32) >> 32; | |
1286 | tv[0] = v >> 32; | |
1287 | } | |
1288 | real_from_target (&rv, tv, mode); | |
1289 | return CONST_DOUBLE_FROM_REAL_VALUE (rv, mode); | |
1290 | } | |
1291 | ||
1292 | void | |
1293 | print_operand_address (FILE * file, register rtx addr) | |
1294 | { | |
1295 | rtx reg; | |
1296 | rtx offset; | |
1297 | ||
e04cf423 | 1298 | if (GET_CODE (addr) == AND |
1299 | && GET_CODE (XEXP (addr, 1)) == CONST_INT | |
1300 | && INTVAL (XEXP (addr, 1)) == -16) | |
1301 | addr = XEXP (addr, 0); | |
1302 | ||
644459d0 | 1303 | switch (GET_CODE (addr)) |
1304 | { | |
1305 | case REG: | |
1306 | fprintf (file, "0(%s)", reg_names[REGNO (addr)]); | |
1307 | break; | |
1308 | ||
1309 | case PLUS: | |
1310 | reg = XEXP (addr, 0); | |
1311 | offset = XEXP (addr, 1); | |
1312 | if (GET_CODE (offset) == REG) | |
1313 | { | |
1314 | fprintf (file, "%s,%s", reg_names[REGNO (reg)], | |
1315 | reg_names[REGNO (offset)]); | |
1316 | } | |
1317 | else if (GET_CODE (offset) == CONST_INT) | |
1318 | { | |
1319 | fprintf (file, HOST_WIDE_INT_PRINT_DEC "(%s)", | |
1320 | INTVAL (offset), reg_names[REGNO (reg)]); | |
1321 | } | |
1322 | else | |
1323 | abort (); | |
1324 | break; | |
1325 | ||
1326 | case CONST: | |
1327 | case LABEL_REF: | |
1328 | case SYMBOL_REF: | |
1329 | case CONST_INT: | |
1330 | output_addr_const (file, addr); | |
1331 | break; | |
1332 | ||
1333 | default: | |
1334 | debug_rtx (addr); | |
1335 | abort (); | |
1336 | } | |
1337 | } | |
1338 | ||
1339 | void | |
1340 | print_operand (FILE * file, rtx x, int code) | |
1341 | { | |
1342 | enum machine_mode mode = GET_MODE (x); | |
1343 | HOST_WIDE_INT val; | |
1344 | unsigned char arr[16]; | |
1345 | int xcode = GET_CODE (x); | |
dea01258 | 1346 | int i, info; |
644459d0 | 1347 | if (GET_MODE (x) == VOIDmode) |
1348 | switch (code) | |
1349 | { | |
644459d0 | 1350 | case 'L': /* 128 bits, signed */ |
1351 | case 'm': /* 128 bits, signed */ | |
1352 | case 'T': /* 128 bits, signed */ | |
1353 | case 't': /* 128 bits, signed */ | |
1354 | mode = TImode; | |
1355 | break; | |
644459d0 | 1356 | case 'K': /* 64 bits, signed */ |
1357 | case 'k': /* 64 bits, signed */ | |
1358 | case 'D': /* 64 bits, signed */ | |
1359 | case 'd': /* 64 bits, signed */ | |
1360 | mode = DImode; | |
1361 | break; | |
644459d0 | 1362 | case 'J': /* 32 bits, signed */ |
1363 | case 'j': /* 32 bits, signed */ | |
1364 | case 's': /* 32 bits, signed */ | |
1365 | case 'S': /* 32 bits, signed */ | |
1366 | mode = SImode; | |
1367 | break; | |
1368 | } | |
1369 | switch (code) | |
1370 | { | |
1371 | ||
1372 | case 'j': /* 32 bits, signed */ | |
1373 | case 'k': /* 64 bits, signed */ | |
1374 | case 'm': /* 128 bits, signed */ | |
1375 | if (xcode == CONST_INT | |
1376 | || xcode == CONST_DOUBLE || xcode == CONST_VECTOR) | |
1377 | { | |
1378 | gcc_assert (logical_immediate_p (x, mode)); | |
1379 | constant_to_array (mode, x, arr); | |
1380 | val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; | |
1381 | val = trunc_int_for_mode (val, SImode); | |
1382 | switch (which_logical_immediate (val)) | |
1383 | { | |
1384 | case SPU_ORI: | |
1385 | break; | |
1386 | case SPU_ORHI: | |
1387 | fprintf (file, "h"); | |
1388 | break; | |
1389 | case SPU_ORBI: | |
1390 | fprintf (file, "b"); | |
1391 | break; | |
1392 | default: | |
1393 | gcc_unreachable(); | |
1394 | } | |
1395 | } | |
1396 | else | |
1397 | gcc_unreachable(); | |
1398 | return; | |
1399 | ||
1400 | case 'J': /* 32 bits, signed */ | |
1401 | case 'K': /* 64 bits, signed */ | |
1402 | case 'L': /* 128 bits, signed */ | |
1403 | if (xcode == CONST_INT | |
1404 | || xcode == CONST_DOUBLE || xcode == CONST_VECTOR) | |
1405 | { | |
1406 | gcc_assert (logical_immediate_p (x, mode) | |
1407 | || iohl_immediate_p (x, mode)); | |
1408 | constant_to_array (mode, x, arr); | |
1409 | val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; | |
1410 | val = trunc_int_for_mode (val, SImode); | |
1411 | switch (which_logical_immediate (val)) | |
1412 | { | |
1413 | case SPU_ORI: | |
1414 | case SPU_IOHL: | |
1415 | break; | |
1416 | case SPU_ORHI: | |
1417 | val = trunc_int_for_mode (val, HImode); | |
1418 | break; | |
1419 | case SPU_ORBI: | |
1420 | val = trunc_int_for_mode (val, QImode); | |
1421 | break; | |
1422 | default: | |
1423 | gcc_unreachable(); | |
1424 | } | |
1425 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, val); | |
1426 | } | |
1427 | else | |
1428 | gcc_unreachable(); | |
1429 | return; | |
1430 | ||
1431 | case 't': /* 128 bits, signed */ | |
1432 | case 'd': /* 64 bits, signed */ | |
1433 | case 's': /* 32 bits, signed */ | |
dea01258 | 1434 | if (CONSTANT_P (x)) |
644459d0 | 1435 | { |
dea01258 | 1436 | enum immediate_class c = classify_immediate (x, mode); |
1437 | switch (c) | |
1438 | { | |
1439 | case IC_IL1: | |
1440 | constant_to_array (mode, x, arr); | |
1441 | val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; | |
1442 | val = trunc_int_for_mode (val, SImode); | |
1443 | switch (which_immediate_load (val)) | |
1444 | { | |
1445 | case SPU_IL: | |
1446 | break; | |
1447 | case SPU_ILA: | |
1448 | fprintf (file, "a"); | |
1449 | break; | |
1450 | case SPU_ILH: | |
1451 | fprintf (file, "h"); | |
1452 | break; | |
1453 | case SPU_ILHU: | |
1454 | fprintf (file, "hu"); | |
1455 | break; | |
1456 | default: | |
1457 | gcc_unreachable (); | |
1458 | } | |
1459 | break; | |
1460 | case IC_CPAT: | |
1461 | constant_to_array (mode, x, arr); | |
1462 | cpat_info (arr, GET_MODE_SIZE (mode), &info, 0); | |
1463 | if (info == 1) | |
1464 | fprintf (file, "b"); | |
1465 | else if (info == 2) | |
1466 | fprintf (file, "h"); | |
1467 | else if (info == 4) | |
1468 | fprintf (file, "w"); | |
1469 | else if (info == 8) | |
1470 | fprintf (file, "d"); | |
1471 | break; | |
1472 | case IC_IL1s: | |
1473 | if (xcode == CONST_VECTOR) | |
1474 | { | |
1475 | x = CONST_VECTOR_ELT (x, 0); | |
1476 | xcode = GET_CODE (x); | |
1477 | } | |
1478 | if (xcode == SYMBOL_REF || xcode == LABEL_REF || xcode == CONST) | |
1479 | fprintf (file, "a"); | |
1480 | else if (xcode == HIGH) | |
1481 | fprintf (file, "hu"); | |
1482 | break; | |
1483 | case IC_FSMBI: | |
5df189be | 1484 | case IC_FSMBI2: |
dea01258 | 1485 | case IC_IL2: |
1486 | case IC_IL2s: | |
1487 | case IC_POOL: | |
1488 | abort (); | |
1489 | } | |
644459d0 | 1490 | } |
644459d0 | 1491 | else |
1492 | gcc_unreachable (); | |
1493 | return; | |
1494 | ||
1495 | case 'T': /* 128 bits, signed */ | |
1496 | case 'D': /* 64 bits, signed */ | |
1497 | case 'S': /* 32 bits, signed */ | |
dea01258 | 1498 | if (CONSTANT_P (x)) |
644459d0 | 1499 | { |
dea01258 | 1500 | enum immediate_class c = classify_immediate (x, mode); |
1501 | switch (c) | |
644459d0 | 1502 | { |
dea01258 | 1503 | case IC_IL1: |
1504 | constant_to_array (mode, x, arr); | |
1505 | val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; | |
1506 | val = trunc_int_for_mode (val, SImode); | |
1507 | switch (which_immediate_load (val)) | |
1508 | { | |
1509 | case SPU_IL: | |
1510 | case SPU_ILA: | |
1511 | break; | |
1512 | case SPU_ILH: | |
1513 | case SPU_ILHU: | |
1514 | val = trunc_int_for_mode (((arr[0] << 8) | arr[1]), HImode); | |
1515 | break; | |
1516 | default: | |
1517 | gcc_unreachable (); | |
1518 | } | |
1519 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, val); | |
1520 | break; | |
1521 | case IC_FSMBI: | |
1522 | constant_to_array (mode, x, arr); | |
1523 | val = 0; | |
1524 | for (i = 0; i < 16; i++) | |
1525 | { | |
1526 | val <<= 1; | |
1527 | val |= arr[i] & 1; | |
1528 | } | |
1529 | print_operand (file, GEN_INT (val), 0); | |
1530 | break; | |
1531 | case IC_CPAT: | |
1532 | constant_to_array (mode, x, arr); | |
1533 | cpat_info (arr, GET_MODE_SIZE (mode), 0, &info); | |
1534 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, (HOST_WIDE_INT)info); | |
644459d0 | 1535 | break; |
dea01258 | 1536 | case IC_IL1s: |
dea01258 | 1537 | if (xcode == HIGH) |
5df189be | 1538 | x = XEXP (x, 0); |
1539 | if (GET_CODE (x) == CONST_VECTOR) | |
1540 | x = CONST_VECTOR_ELT (x, 0); | |
1541 | output_addr_const (file, x); | |
1542 | if (xcode == HIGH) | |
1543 | fprintf (file, "@h"); | |
644459d0 | 1544 | break; |
dea01258 | 1545 | case IC_IL2: |
1546 | case IC_IL2s: | |
5df189be | 1547 | case IC_FSMBI2: |
dea01258 | 1548 | case IC_POOL: |
1549 | abort (); | |
644459d0 | 1550 | } |
c8befdb9 | 1551 | } |
644459d0 | 1552 | else |
1553 | gcc_unreachable (); | |
1554 | return; | |
1555 | ||
644459d0 | 1556 | case 'C': |
1557 | if (xcode == CONST_INT) | |
1558 | { | |
1559 | /* Only 4 least significant bits are relevant for generate | |
1560 | control word instructions. */ | |
1561 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (x) & 15); | |
1562 | return; | |
1563 | } | |
1564 | break; | |
1565 | ||
1566 | case 'M': /* print code for c*d */ | |
1567 | if (GET_CODE (x) == CONST_INT) | |
1568 | switch (INTVAL (x)) | |
1569 | { | |
1570 | case 1: | |
1571 | fprintf (file, "b"); | |
1572 | break; | |
1573 | case 2: | |
1574 | fprintf (file, "h"); | |
1575 | break; | |
1576 | case 4: | |
1577 | fprintf (file, "w"); | |
1578 | break; | |
1579 | case 8: | |
1580 | fprintf (file, "d"); | |
1581 | break; | |
1582 | default: | |
1583 | gcc_unreachable(); | |
1584 | } | |
1585 | else | |
1586 | gcc_unreachable(); | |
1587 | return; | |
1588 | ||
1589 | case 'N': /* Negate the operand */ | |
1590 | if (xcode == CONST_INT) | |
1591 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, -INTVAL (x)); | |
1592 | else if (xcode == CONST_VECTOR) | |
1593 | fprintf (file, HOST_WIDE_INT_PRINT_DEC, | |
1594 | -INTVAL (CONST_VECTOR_ELT (x, 0))); | |
1595 | return; | |
1596 | ||
1597 | case 'I': /* enable/disable interrupts */ | |
1598 | if (xcode == CONST_INT) | |
1599 | fprintf (file, "%s", INTVAL (x) == 0 ? "d" : "e"); | |
1600 | return; | |
1601 | ||
1602 | case 'b': /* branch modifiers */ | |
1603 | if (xcode == REG) | |
1604 | fprintf (file, "%s", GET_MODE (x) == HImode ? "h" : ""); | |
1605 | else if (COMPARISON_P (x)) | |
1606 | fprintf (file, "%s", xcode == NE ? "n" : ""); | |
1607 | return; | |
1608 | ||
1609 | case 'i': /* indirect call */ | |
1610 | if (xcode == MEM) | |
1611 | { | |
1612 | if (GET_CODE (XEXP (x, 0)) == REG) | |
1613 | /* Used in indirect function calls. */ | |
1614 | fprintf (file, "%s", reg_names[REGNO (XEXP (x, 0))]); | |
1615 | else | |
1616 | output_address (XEXP (x, 0)); | |
1617 | } | |
1618 | return; | |
1619 | ||
1620 | case 'p': /* load/store */ | |
1621 | if (xcode == MEM) | |
1622 | { | |
1623 | x = XEXP (x, 0); | |
1624 | xcode = GET_CODE (x); | |
1625 | } | |
e04cf423 | 1626 | if (xcode == AND) |
1627 | { | |
1628 | x = XEXP (x, 0); | |
1629 | xcode = GET_CODE (x); | |
1630 | } | |
644459d0 | 1631 | if (xcode == REG) |
1632 | fprintf (file, "d"); | |
1633 | else if (xcode == CONST_INT) | |
1634 | fprintf (file, "a"); | |
1635 | else if (xcode == CONST || xcode == SYMBOL_REF || xcode == LABEL_REF) | |
1636 | fprintf (file, "r"); | |
1637 | else if (xcode == PLUS || xcode == LO_SUM) | |
1638 | { | |
1639 | if (GET_CODE (XEXP (x, 1)) == REG) | |
1640 | fprintf (file, "x"); | |
1641 | else | |
1642 | fprintf (file, "d"); | |
1643 | } | |
1644 | return; | |
1645 | ||
5df189be | 1646 | case 'e': |
1647 | val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); | |
1648 | val &= 0x7; | |
1649 | output_addr_const (file, GEN_INT (val)); | |
1650 | return; | |
1651 | ||
1652 | case 'f': | |
1653 | val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); | |
1654 | val &= 0x1f; | |
1655 | output_addr_const (file, GEN_INT (val)); | |
1656 | return; | |
1657 | ||
1658 | case 'g': | |
1659 | val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); | |
1660 | val &= 0x3f; | |
1661 | output_addr_const (file, GEN_INT (val)); | |
1662 | return; | |
1663 | ||
1664 | case 'h': | |
1665 | val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); | |
1666 | val = (val >> 3) & 0x1f; | |
1667 | output_addr_const (file, GEN_INT (val)); | |
1668 | return; | |
1669 | ||
1670 | case 'E': | |
1671 | val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); | |
1672 | val = -val; | |
1673 | val &= 0x7; | |
1674 | output_addr_const (file, GEN_INT (val)); | |
1675 | return; | |
1676 | ||
1677 | case 'F': | |
1678 | val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); | |
1679 | val = -val; | |
1680 | val &= 0x1f; | |
1681 | output_addr_const (file, GEN_INT (val)); | |
1682 | return; | |
1683 | ||
1684 | case 'G': | |
1685 | val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); | |
1686 | val = -val; | |
1687 | val &= 0x3f; | |
1688 | output_addr_const (file, GEN_INT (val)); | |
1689 | return; | |
1690 | ||
1691 | case 'H': | |
1692 | val = xcode == CONST_INT ? INTVAL (x) : INTVAL (CONST_VECTOR_ELT (x, 0)); | |
1693 | val = -(val & -8ll); | |
1694 | val = (val >> 3) & 0x1f; | |
1695 | output_addr_const (file, GEN_INT (val)); | |
1696 | return; | |
1697 | ||
56c7bfc2 | 1698 | case 'v': |
1699 | case 'w': | |
1700 | constant_to_array (mode, x, arr); | |
1701 | val = (((arr[0] << 1) + (arr[1] >> 7)) & 0xff) - 127; | |
1702 | output_addr_const (file, GEN_INT (code == 'w' ? -val : val)); | |
1703 | return; | |
1704 | ||
644459d0 | 1705 | case 0: |
1706 | if (xcode == REG) | |
1707 | fprintf (file, "%s", reg_names[REGNO (x)]); | |
1708 | else if (xcode == MEM) | |
1709 | output_address (XEXP (x, 0)); | |
1710 | else if (xcode == CONST_VECTOR) | |
dea01258 | 1711 | print_operand (file, CONST_VECTOR_ELT (x, 0), 0); |
644459d0 | 1712 | else |
1713 | output_addr_const (file, x); | |
1714 | return; | |
1715 | ||
f6a0d06f | 1716 | /* unused letters |
56c7bfc2 | 1717 | o qr u yz |
5df189be | 1718 | AB OPQR UVWXYZ */ |
644459d0 | 1719 | default: |
1720 | output_operand_lossage ("invalid %%xn code"); | |
1721 | } | |
1722 | gcc_unreachable (); | |
1723 | } | |
1724 | ||
644459d0 | 1725 | /* For PIC mode we've reserved PIC_OFFSET_TABLE_REGNUM, which is a |
1726 | caller saved register. For leaf functions it is more efficient to | |
1727 | use a volatile register because we won't need to save and restore the | |
1728 | pic register. This routine is only valid after register allocation | |
1729 | is completed, so we can pick an unused register. */ | |
1730 | static rtx | |
1731 | get_pic_reg (void) | |
1732 | { | |
1733 | rtx pic_reg = pic_offset_table_rtx; | |
1734 | if (!reload_completed && !reload_in_progress) | |
1735 | abort (); | |
87a95921 | 1736 | if (current_function_is_leaf && !df_regs_ever_live_p (LAST_ARG_REGNUM)) |
1737 | pic_reg = gen_rtx_REG (SImode, LAST_ARG_REGNUM); | |
644459d0 | 1738 | return pic_reg; |
1739 | } | |
1740 | ||
5df189be | 1741 | /* Split constant addresses to handle cases that are too large. |
1742 | Add in the pic register when in PIC mode. | |
1743 | Split immediates that require more than 1 instruction. */ | |
dea01258 | 1744 | int |
1745 | spu_split_immediate (rtx * ops) | |
c8befdb9 | 1746 | { |
dea01258 | 1747 | enum machine_mode mode = GET_MODE (ops[0]); |
1748 | enum immediate_class c = classify_immediate (ops[1], mode); | |
1749 | ||
1750 | switch (c) | |
c8befdb9 | 1751 | { |
dea01258 | 1752 | case IC_IL2: |
1753 | { | |
1754 | unsigned char arrhi[16]; | |
1755 | unsigned char arrlo[16]; | |
98bbec1e | 1756 | rtx to, temp, hi, lo; |
dea01258 | 1757 | int i; |
98bbec1e | 1758 | enum machine_mode imode = mode; |
1759 | /* We need to do reals as ints because the constant used in the | |
1760 | IOR might not be a legitimate real constant. */ | |
1761 | imode = int_mode_for_mode (mode); | |
dea01258 | 1762 | constant_to_array (mode, ops[1], arrhi); |
98bbec1e | 1763 | if (imode != mode) |
1764 | to = simplify_gen_subreg (imode, ops[0], mode, 0); | |
1765 | else | |
1766 | to = ops[0]; | |
1767 | temp = !can_create_pseudo_p () ? to : gen_reg_rtx (imode); | |
dea01258 | 1768 | for (i = 0; i < 16; i += 4) |
1769 | { | |
1770 | arrlo[i + 2] = arrhi[i + 2]; | |
1771 | arrlo[i + 3] = arrhi[i + 3]; | |
1772 | arrlo[i + 0] = arrlo[i + 1] = 0; | |
1773 | arrhi[i + 2] = arrhi[i + 3] = 0; | |
1774 | } | |
98bbec1e | 1775 | hi = array_to_constant (imode, arrhi); |
1776 | lo = array_to_constant (imode, arrlo); | |
1777 | emit_move_insn (temp, hi); | |
dea01258 | 1778 | emit_insn (gen_rtx_SET |
98bbec1e | 1779 | (VOIDmode, to, gen_rtx_IOR (imode, temp, lo))); |
dea01258 | 1780 | return 1; |
1781 | } | |
5df189be | 1782 | case IC_FSMBI2: |
1783 | { | |
1784 | unsigned char arr_fsmbi[16]; | |
1785 | unsigned char arr_andbi[16]; | |
1786 | rtx to, reg_fsmbi, reg_and; | |
1787 | int i; | |
1788 | enum machine_mode imode = mode; | |
1789 | /* We need to do reals as ints because the constant used in the | |
1790 | * AND might not be a legitimate real constant. */ | |
1791 | imode = int_mode_for_mode (mode); | |
1792 | constant_to_array (mode, ops[1], arr_fsmbi); | |
1793 | if (imode != mode) | |
1794 | to = simplify_gen_subreg(imode, ops[0], GET_MODE (ops[0]), 0); | |
1795 | else | |
1796 | to = ops[0]; | |
1797 | for (i = 0; i < 16; i++) | |
1798 | if (arr_fsmbi[i] != 0) | |
1799 | { | |
1800 | arr_andbi[0] = arr_fsmbi[i]; | |
1801 | arr_fsmbi[i] = 0xff; | |
1802 | } | |
1803 | for (i = 1; i < 16; i++) | |
1804 | arr_andbi[i] = arr_andbi[0]; | |
1805 | reg_fsmbi = array_to_constant (imode, arr_fsmbi); | |
1806 | reg_and = array_to_constant (imode, arr_andbi); | |
1807 | emit_move_insn (to, reg_fsmbi); | |
1808 | emit_insn (gen_rtx_SET | |
1809 | (VOIDmode, to, gen_rtx_AND (imode, to, reg_and))); | |
1810 | return 1; | |
1811 | } | |
dea01258 | 1812 | case IC_POOL: |
1813 | if (reload_in_progress || reload_completed) | |
1814 | { | |
1815 | rtx mem = force_const_mem (mode, ops[1]); | |
1816 | if (TARGET_LARGE_MEM) | |
1817 | { | |
1818 | rtx addr = gen_rtx_REG (Pmode, REGNO (ops[0])); | |
1819 | emit_move_insn (addr, XEXP (mem, 0)); | |
1820 | mem = replace_equiv_address (mem, addr); | |
1821 | } | |
1822 | emit_move_insn (ops[0], mem); | |
1823 | return 1; | |
1824 | } | |
1825 | break; | |
1826 | case IC_IL1s: | |
1827 | case IC_IL2s: | |
1828 | if (reload_completed && GET_CODE (ops[1]) != HIGH) | |
1829 | { | |
1830 | if (c == IC_IL2s) | |
1831 | { | |
5df189be | 1832 | emit_move_insn (ops[0], gen_rtx_HIGH (mode, ops[1])); |
1833 | emit_move_insn (ops[0], gen_rtx_LO_SUM (mode, ops[0], ops[1])); | |
dea01258 | 1834 | } |
1835 | else if (flag_pic) | |
1836 | emit_insn (gen_pic (ops[0], ops[1])); | |
1837 | if (flag_pic) | |
1838 | { | |
1839 | rtx pic_reg = get_pic_reg (); | |
1840 | emit_insn (gen_addsi3 (ops[0], ops[0], pic_reg)); | |
18d50ae6 | 1841 | crtl->uses_pic_offset_table = 1; |
dea01258 | 1842 | } |
1843 | return flag_pic || c == IC_IL2s; | |
1844 | } | |
1845 | break; | |
1846 | case IC_IL1: | |
1847 | case IC_FSMBI: | |
1848 | case IC_CPAT: | |
1849 | break; | |
c8befdb9 | 1850 | } |
dea01258 | 1851 | return 0; |
c8befdb9 | 1852 | } |
1853 | ||
644459d0 | 1854 | /* SAVING is TRUE when we are generating the actual load and store |
1855 | instructions for REGNO. When determining the size of the stack | |
1856 | needed for saving register we must allocate enough space for the | |
1857 | worst case, because we don't always have the information early enough | |
1858 | to not allocate it. But we can at least eliminate the actual loads | |
1859 | and stores during the prologue/epilogue. */ | |
1860 | static int | |
1861 | need_to_save_reg (int regno, int saving) | |
1862 | { | |
3072d30e | 1863 | if (df_regs_ever_live_p (regno) && !call_used_regs[regno]) |
644459d0 | 1864 | return 1; |
1865 | if (flag_pic | |
1866 | && regno == PIC_OFFSET_TABLE_REGNUM | |
18d50ae6 | 1867 | && (!saving || crtl->uses_pic_offset_table) |
644459d0 | 1868 | && (!saving |
3072d30e | 1869 | || !current_function_is_leaf || df_regs_ever_live_p (LAST_ARG_REGNUM))) |
644459d0 | 1870 | return 1; |
1871 | return 0; | |
1872 | } | |
1873 | ||
1874 | /* This function is only correct starting with local register | |
1875 | allocation */ | |
1876 | int | |
1877 | spu_saved_regs_size (void) | |
1878 | { | |
1879 | int reg_save_size = 0; | |
1880 | int regno; | |
1881 | ||
1882 | for (regno = FIRST_PSEUDO_REGISTER - 1; regno >= 0; --regno) | |
1883 | if (need_to_save_reg (regno, 0)) | |
1884 | reg_save_size += 0x10; | |
1885 | return reg_save_size; | |
1886 | } | |
1887 | ||
1888 | static rtx | |
1889 | frame_emit_store (int regno, rtx addr, HOST_WIDE_INT offset) | |
1890 | { | |
1891 | rtx reg = gen_rtx_REG (V4SImode, regno); | |
1892 | rtx mem = | |
1893 | gen_frame_mem (V4SImode, gen_rtx_PLUS (Pmode, addr, GEN_INT (offset))); | |
1894 | return emit_insn (gen_movv4si (mem, reg)); | |
1895 | } | |
1896 | ||
1897 | static rtx | |
1898 | frame_emit_load (int regno, rtx addr, HOST_WIDE_INT offset) | |
1899 | { | |
1900 | rtx reg = gen_rtx_REG (V4SImode, regno); | |
1901 | rtx mem = | |
1902 | gen_frame_mem (V4SImode, gen_rtx_PLUS (Pmode, addr, GEN_INT (offset))); | |
1903 | return emit_insn (gen_movv4si (reg, mem)); | |
1904 | } | |
1905 | ||
1906 | /* This happens after reload, so we need to expand it. */ | |
1907 | static rtx | |
1908 | frame_emit_add_imm (rtx dst, rtx src, HOST_WIDE_INT imm, rtx scratch) | |
1909 | { | |
1910 | rtx insn; | |
1911 | if (satisfies_constraint_K (GEN_INT (imm))) | |
1912 | { | |
1913 | insn = emit_insn (gen_addsi3 (dst, src, GEN_INT (imm))); | |
1914 | } | |
1915 | else | |
1916 | { | |
3072d30e | 1917 | emit_insn (gen_movsi (scratch, gen_int_mode (imm, SImode))); |
644459d0 | 1918 | insn = emit_insn (gen_addsi3 (dst, src, scratch)); |
1919 | if (REGNO (src) == REGNO (scratch)) | |
1920 | abort (); | |
1921 | } | |
644459d0 | 1922 | return insn; |
1923 | } | |
1924 | ||
1925 | /* Return nonzero if this function is known to have a null epilogue. */ | |
1926 | ||
1927 | int | |
1928 | direct_return (void) | |
1929 | { | |
1930 | if (reload_completed) | |
1931 | { | |
1932 | if (cfun->static_chain_decl == 0 | |
1933 | && (spu_saved_regs_size () | |
1934 | + get_frame_size () | |
abe32cce | 1935 | + crtl->outgoing_args_size |
1936 | + crtl->args.pretend_args_size == 0) | |
644459d0 | 1937 | && current_function_is_leaf) |
1938 | return 1; | |
1939 | } | |
1940 | return 0; | |
1941 | } | |
1942 | ||
1943 | /* | |
1944 | The stack frame looks like this: | |
1945 | +-------------+ | |
1946 | | incoming | | |
a8e019fa | 1947 | | args | |
1948 | AP -> +-------------+ | |
644459d0 | 1949 | | $lr save | |
1950 | +-------------+ | |
1951 | prev SP | back chain | | |
1952 | +-------------+ | |
1953 | | var args | | |
abe32cce | 1954 | | reg save | crtl->args.pretend_args_size bytes |
644459d0 | 1955 | +-------------+ |
1956 | | ... | | |
1957 | | saved regs | spu_saved_regs_size() bytes | |
a8e019fa | 1958 | FP -> +-------------+ |
644459d0 | 1959 | | ... | |
a8e019fa | 1960 | | vars | get_frame_size() bytes |
1961 | HFP -> +-------------+ | |
644459d0 | 1962 | | ... | |
1963 | | outgoing | | |
abe32cce | 1964 | | args | crtl->outgoing_args_size bytes |
644459d0 | 1965 | +-------------+ |
1966 | | $lr of next | | |
1967 | | frame | | |
1968 | +-------------+ | |
a8e019fa | 1969 | | back chain | |
1970 | SP -> +-------------+ | |
644459d0 | 1971 | |
1972 | */ | |
1973 | void | |
1974 | spu_expand_prologue (void) | |
1975 | { | |
1976 | HOST_WIDE_INT size = get_frame_size (), offset, regno; | |
1977 | HOST_WIDE_INT total_size; | |
1978 | HOST_WIDE_INT saved_regs_size; | |
1979 | rtx sp_reg = gen_rtx_REG (Pmode, STACK_POINTER_REGNUM); | |
1980 | rtx scratch_reg_0, scratch_reg_1; | |
1981 | rtx insn, real; | |
1982 | ||
644459d0 | 1983 | if (flag_pic && optimize == 0) |
18d50ae6 | 1984 | crtl->uses_pic_offset_table = 1; |
644459d0 | 1985 | |
1986 | if (spu_naked_function_p (current_function_decl)) | |
1987 | return; | |
1988 | ||
1989 | scratch_reg_0 = gen_rtx_REG (SImode, LAST_ARG_REGNUM + 1); | |
1990 | scratch_reg_1 = gen_rtx_REG (SImode, LAST_ARG_REGNUM + 2); | |
1991 | ||
1992 | saved_regs_size = spu_saved_regs_size (); | |
1993 | total_size = size + saved_regs_size | |
abe32cce | 1994 | + crtl->outgoing_args_size |
1995 | + crtl->args.pretend_args_size; | |
644459d0 | 1996 | |
1997 | if (!current_function_is_leaf | |
18d50ae6 | 1998 | || cfun->calls_alloca || total_size > 0) |
644459d0 | 1999 | total_size += STACK_POINTER_OFFSET; |
2000 | ||
2001 | /* Save this first because code after this might use the link | |
2002 | register as a scratch register. */ | |
2003 | if (!current_function_is_leaf) | |
2004 | { | |
2005 | insn = frame_emit_store (LINK_REGISTER_REGNUM, sp_reg, 16); | |
2006 | RTX_FRAME_RELATED_P (insn) = 1; | |
2007 | } | |
2008 | ||
2009 | if (total_size > 0) | |
2010 | { | |
abe32cce | 2011 | offset = -crtl->args.pretend_args_size; |
644459d0 | 2012 | for (regno = 0; regno < FIRST_PSEUDO_REGISTER; ++regno) |
2013 | if (need_to_save_reg (regno, 1)) | |
2014 | { | |
2015 | offset -= 16; | |
2016 | insn = frame_emit_store (regno, sp_reg, offset); | |
2017 | RTX_FRAME_RELATED_P (insn) = 1; | |
2018 | } | |
2019 | } | |
2020 | ||
18d50ae6 | 2021 | if (flag_pic && crtl->uses_pic_offset_table) |
644459d0 | 2022 | { |
2023 | rtx pic_reg = get_pic_reg (); | |
2024 | insn = emit_insn (gen_load_pic_offset (pic_reg, scratch_reg_0)); | |
644459d0 | 2025 | insn = emit_insn (gen_subsi3 (pic_reg, pic_reg, scratch_reg_0)); |
644459d0 | 2026 | } |
2027 | ||
2028 | if (total_size > 0) | |
2029 | { | |
2030 | if (flag_stack_check) | |
2031 | { | |
d819917f | 2032 | /* We compare against total_size-1 because |
644459d0 | 2033 | ($sp >= total_size) <=> ($sp > total_size-1) */ |
2034 | rtx scratch_v4si = gen_rtx_REG (V4SImode, REGNO (scratch_reg_0)); | |
2035 | rtx sp_v4si = gen_rtx_REG (V4SImode, STACK_POINTER_REGNUM); | |
2036 | rtx size_v4si = spu_const (V4SImode, total_size - 1); | |
2037 | if (!satisfies_constraint_K (GEN_INT (total_size - 1))) | |
2038 | { | |
2039 | emit_move_insn (scratch_v4si, size_v4si); | |
2040 | size_v4si = scratch_v4si; | |
2041 | } | |
2042 | emit_insn (gen_cgt_v4si (scratch_v4si, sp_v4si, size_v4si)); | |
2043 | emit_insn (gen_vec_extractv4si | |
2044 | (scratch_reg_0, scratch_v4si, GEN_INT (1))); | |
2045 | emit_insn (gen_spu_heq (scratch_reg_0, GEN_INT (0))); | |
2046 | } | |
2047 | ||
2048 | /* Adjust the stack pointer, and make sure scratch_reg_0 contains | |
2049 | the value of the previous $sp because we save it as the back | |
2050 | chain. */ | |
2051 | if (total_size <= 2000) | |
2052 | { | |
2053 | /* In this case we save the back chain first. */ | |
2054 | insn = frame_emit_store (STACK_POINTER_REGNUM, sp_reg, -total_size); | |
644459d0 | 2055 | insn = |
2056 | frame_emit_add_imm (sp_reg, sp_reg, -total_size, scratch_reg_0); | |
2057 | } | |
644459d0 | 2058 | else |
2059 | { | |
2060 | insn = emit_move_insn (scratch_reg_0, sp_reg); | |
644459d0 | 2061 | insn = |
2062 | frame_emit_add_imm (sp_reg, sp_reg, -total_size, scratch_reg_1); | |
2063 | } | |
2064 | RTX_FRAME_RELATED_P (insn) = 1; | |
2065 | real = gen_addsi3 (sp_reg, sp_reg, GEN_INT (-total_size)); | |
b9c74b4d | 2066 | add_reg_note (insn, REG_FRAME_RELATED_EXPR, real); |
644459d0 | 2067 | |
2068 | if (total_size > 2000) | |
2069 | { | |
2070 | /* Save the back chain ptr */ | |
2071 | insn = frame_emit_store (REGNO (scratch_reg_0), sp_reg, 0); | |
644459d0 | 2072 | } |
2073 | ||
2074 | if (frame_pointer_needed) | |
2075 | { | |
2076 | rtx fp_reg = gen_rtx_REG (Pmode, HARD_FRAME_POINTER_REGNUM); | |
2077 | HOST_WIDE_INT fp_offset = STACK_POINTER_OFFSET | |
abe32cce | 2078 | + crtl->outgoing_args_size; |
644459d0 | 2079 | /* Set the new frame_pointer */ |
d8dfeb55 | 2080 | insn = frame_emit_add_imm (fp_reg, sp_reg, fp_offset, scratch_reg_0); |
2081 | RTX_FRAME_RELATED_P (insn) = 1; | |
2082 | real = gen_addsi3 (fp_reg, sp_reg, GEN_INT (fp_offset)); | |
b9c74b4d | 2083 | add_reg_note (insn, REG_FRAME_RELATED_EXPR, real); |
5df189be | 2084 | REGNO_POINTER_ALIGN (HARD_FRAME_POINTER_REGNUM) = STACK_BOUNDARY; |
644459d0 | 2085 | } |
2086 | } | |
2087 | ||
8c0dd614 | 2088 | if (flag_stack_usage_info) |
a512540d | 2089 | current_function_static_stack_size = total_size; |
644459d0 | 2090 | } |
2091 | ||
2092 | void | |
2093 | spu_expand_epilogue (bool sibcall_p) | |
2094 | { | |
2095 | int size = get_frame_size (), offset, regno; | |
2096 | HOST_WIDE_INT saved_regs_size, total_size; | |
2097 | rtx sp_reg = gen_rtx_REG (Pmode, STACK_POINTER_REGNUM); | |
431ad7e0 | 2098 | rtx scratch_reg_0; |
644459d0 | 2099 | |
644459d0 | 2100 | if (spu_naked_function_p (current_function_decl)) |
2101 | return; | |
2102 | ||
2103 | scratch_reg_0 = gen_rtx_REG (SImode, LAST_ARG_REGNUM + 1); | |
2104 | ||
2105 | saved_regs_size = spu_saved_regs_size (); | |
2106 | total_size = size + saved_regs_size | |
abe32cce | 2107 | + crtl->outgoing_args_size |
2108 | + crtl->args.pretend_args_size; | |
644459d0 | 2109 | |
2110 | if (!current_function_is_leaf | |
18d50ae6 | 2111 | || cfun->calls_alloca || total_size > 0) |
644459d0 | 2112 | total_size += STACK_POINTER_OFFSET; |
2113 | ||
2114 | if (total_size > 0) | |
2115 | { | |
18d50ae6 | 2116 | if (cfun->calls_alloca) |
644459d0 | 2117 | frame_emit_load (STACK_POINTER_REGNUM, sp_reg, 0); |
2118 | else | |
2119 | frame_emit_add_imm (sp_reg, sp_reg, total_size, scratch_reg_0); | |
2120 | ||
2121 | ||
2122 | if (saved_regs_size > 0) | |
2123 | { | |
abe32cce | 2124 | offset = -crtl->args.pretend_args_size; |
644459d0 | 2125 | for (regno = 0; regno < FIRST_PSEUDO_REGISTER; ++regno) |
2126 | if (need_to_save_reg (regno, 1)) | |
2127 | { | |
2128 | offset -= 0x10; | |
2129 | frame_emit_load (regno, sp_reg, offset); | |
2130 | } | |
2131 | } | |
2132 | } | |
2133 | ||
2134 | if (!current_function_is_leaf) | |
2135 | frame_emit_load (LINK_REGISTER_REGNUM, sp_reg, 16); | |
2136 | ||
2137 | if (!sibcall_p) | |
2138 | { | |
18b42941 | 2139 | emit_use (gen_rtx_REG (SImode, LINK_REGISTER_REGNUM)); |
431ad7e0 | 2140 | emit_jump_insn (gen__return ()); |
644459d0 | 2141 | } |
644459d0 | 2142 | } |
2143 | ||
2144 | rtx | |
2145 | spu_return_addr (int count, rtx frame ATTRIBUTE_UNUSED) | |
2146 | { | |
2147 | if (count != 0) | |
2148 | return 0; | |
2149 | /* This is inefficient because it ends up copying to a save-register | |
2150 | which then gets saved even though $lr has already been saved. But | |
2151 | it does generate better code for leaf functions and we don't need | |
2152 | to use RETURN_ADDRESS_POINTER_REGNUM to get it working. It's only | |
2153 | used for __builtin_return_address anyway, so maybe we don't care if | |
2154 | it's inefficient. */ | |
2155 | return get_hard_reg_initial_val (Pmode, LINK_REGISTER_REGNUM); | |
2156 | } | |
2157 | \f | |
2158 | ||
2159 | /* Given VAL, generate a constant appropriate for MODE. | |
2160 | If MODE is a vector mode, every element will be VAL. | |
2161 | For TImode, VAL will be zero extended to 128 bits. */ | |
2162 | rtx | |
2163 | spu_const (enum machine_mode mode, HOST_WIDE_INT val) | |
2164 | { | |
2165 | rtx inner; | |
2166 | rtvec v; | |
2167 | int units, i; | |
2168 | ||
2169 | gcc_assert (GET_MODE_CLASS (mode) == MODE_INT | |
2170 | || GET_MODE_CLASS (mode) == MODE_FLOAT | |
2171 | || GET_MODE_CLASS (mode) == MODE_VECTOR_INT | |
2172 | || GET_MODE_CLASS (mode) == MODE_VECTOR_FLOAT); | |
2173 | ||
2174 | if (GET_MODE_CLASS (mode) == MODE_INT) | |
2175 | return immed_double_const (val, 0, mode); | |
2176 | ||
2177 | /* val is the bit representation of the float */ | |
2178 | if (GET_MODE_CLASS (mode) == MODE_FLOAT) | |
2179 | return hwint_to_const_double (mode, val); | |
2180 | ||
2181 | if (GET_MODE_CLASS (mode) == MODE_VECTOR_INT) | |
2182 | inner = immed_double_const (val, 0, GET_MODE_INNER (mode)); | |
2183 | else | |
2184 | inner = hwint_to_const_double (GET_MODE_INNER (mode), val); | |
2185 | ||
2186 | units = GET_MODE_NUNITS (mode); | |
2187 | ||
2188 | v = rtvec_alloc (units); | |
2189 | ||
2190 | for (i = 0; i < units; ++i) | |
2191 | RTVEC_ELT (v, i) = inner; | |
2192 | ||
2193 | return gen_rtx_CONST_VECTOR (mode, v); | |
2194 | } | |
644459d0 | 2195 | |
5474166e | 2196 | /* Create a MODE vector constant from 4 ints. */ |
2197 | rtx | |
2198 | spu_const_from_ints(enum machine_mode mode, int a, int b, int c, int d) | |
2199 | { | |
2200 | unsigned char arr[16]; | |
2201 | arr[0] = (a >> 24) & 0xff; | |
2202 | arr[1] = (a >> 16) & 0xff; | |
2203 | arr[2] = (a >> 8) & 0xff; | |
2204 | arr[3] = (a >> 0) & 0xff; | |
2205 | arr[4] = (b >> 24) & 0xff; | |
2206 | arr[5] = (b >> 16) & 0xff; | |
2207 | arr[6] = (b >> 8) & 0xff; | |
2208 | arr[7] = (b >> 0) & 0xff; | |
2209 | arr[8] = (c >> 24) & 0xff; | |
2210 | arr[9] = (c >> 16) & 0xff; | |
2211 | arr[10] = (c >> 8) & 0xff; | |
2212 | arr[11] = (c >> 0) & 0xff; | |
2213 | arr[12] = (d >> 24) & 0xff; | |
2214 | arr[13] = (d >> 16) & 0xff; | |
2215 | arr[14] = (d >> 8) & 0xff; | |
2216 | arr[15] = (d >> 0) & 0xff; | |
2217 | return array_to_constant(mode, arr); | |
2218 | } | |
5a976006 | 2219 | \f |
2220 | /* branch hint stuff */ | |
5474166e | 2221 | |
644459d0 | 2222 | /* An array of these is used to propagate hints to predecessor blocks. */ |
2223 | struct spu_bb_info | |
2224 | { | |
5a976006 | 2225 | rtx prop_jump; /* propagated from another block */ |
2226 | int bb_index; /* the original block. */ | |
644459d0 | 2227 | }; |
5a976006 | 2228 | static struct spu_bb_info *spu_bb_info; |
644459d0 | 2229 | |
5a976006 | 2230 | #define STOP_HINT_P(INSN) \ |
2231 | (GET_CODE(INSN) == CALL_INSN \ | |
2232 | || INSN_CODE(INSN) == CODE_FOR_divmodsi4 \ | |
2233 | || INSN_CODE(INSN) == CODE_FOR_udivmodsi4) | |
2234 | ||
2235 | /* 1 when RTX is a hinted branch or its target. We keep track of | |
2236 | what has been hinted so the safe-hint code can test it easily. */ | |
2237 | #define HINTED_P(RTX) \ | |
2238 | (RTL_FLAG_CHECK3("HINTED_P", (RTX), CODE_LABEL, JUMP_INSN, CALL_INSN)->unchanging) | |
2239 | ||
2240 | /* 1 when RTX is an insn that must be scheduled on an even boundary. */ | |
2241 | #define SCHED_ON_EVEN_P(RTX) \ | |
2242 | (RTL_FLAG_CHECK2("SCHED_ON_EVEN_P", (RTX), JUMP_INSN, CALL_INSN)->in_struct) | |
2243 | ||
2244 | /* Emit a nop for INSN such that the two will dual issue. This assumes | |
2245 | INSN is 8-byte aligned. When INSN is inline asm we emit an lnop. | |
2246 | We check for TImode to handle a MULTI1 insn which has dual issued its | |
2247 | first instruction. get_pipe returns -1 for MULTI0, inline asm, or | |
2248 | ADDR_VEC insns. */ | |
2249 | static void | |
2250 | emit_nop_for_insn (rtx insn) | |
644459d0 | 2251 | { |
5a976006 | 2252 | int p; |
2253 | rtx new_insn; | |
2254 | p = get_pipe (insn); | |
2255 | if ((CALL_P (insn) || JUMP_P (insn)) && SCHED_ON_EVEN_P (insn)) | |
2256 | new_insn = emit_insn_after (gen_lnop (), insn); | |
2257 | else if (p == 1 && GET_MODE (insn) == TImode) | |
644459d0 | 2258 | { |
5a976006 | 2259 | new_insn = emit_insn_before (gen_nopn (GEN_INT (127)), insn); |
2260 | PUT_MODE (new_insn, TImode); | |
2261 | PUT_MODE (insn, VOIDmode); | |
2262 | } | |
2263 | else | |
2264 | new_insn = emit_insn_after (gen_lnop (), insn); | |
2265 | recog_memoized (new_insn); | |
2fbdf9ef | 2266 | INSN_LOCATOR (new_insn) = INSN_LOCATOR (insn); |
5a976006 | 2267 | } |
2268 | ||
2269 | /* Insert nops in basic blocks to meet dual issue alignment | |
2270 | requirements. Also make sure hbrp and hint instructions are at least | |
2271 | one cycle apart, possibly inserting a nop. */ | |
2272 | static void | |
2273 | pad_bb(void) | |
2274 | { | |
2275 | rtx insn, next_insn, prev_insn, hbr_insn = 0; | |
2276 | int length; | |
2277 | int addr; | |
2278 | ||
2279 | /* This sets up INSN_ADDRESSES. */ | |
2280 | shorten_branches (get_insns ()); | |
2281 | ||
2282 | /* Keep track of length added by nops. */ | |
2283 | length = 0; | |
2284 | ||
2285 | prev_insn = 0; | |
2286 | insn = get_insns (); | |
2287 | if (!active_insn_p (insn)) | |
2288 | insn = next_active_insn (insn); | |
2289 | for (; insn; insn = next_insn) | |
2290 | { | |
2291 | next_insn = next_active_insn (insn); | |
2292 | if (INSN_CODE (insn) == CODE_FOR_iprefetch | |
2293 | || INSN_CODE (insn) == CODE_FOR_hbr) | |
644459d0 | 2294 | { |
5a976006 | 2295 | if (hbr_insn) |
2296 | { | |
2297 | int a0 = INSN_ADDRESSES (INSN_UID (hbr_insn)); | |
2298 | int a1 = INSN_ADDRESSES (INSN_UID (insn)); | |
2299 | if ((a1 - a0 == 8 && GET_MODE (insn) != TImode) | |
2300 | || (a1 - a0 == 4)) | |
2301 | { | |
2302 | prev_insn = emit_insn_before (gen_lnop (), insn); | |
2303 | PUT_MODE (prev_insn, GET_MODE (insn)); | |
2304 | PUT_MODE (insn, TImode); | |
2fbdf9ef | 2305 | INSN_LOCATOR (prev_insn) = INSN_LOCATOR (insn); |
5a976006 | 2306 | length += 4; |
2307 | } | |
2308 | } | |
2309 | hbr_insn = insn; | |
2310 | } | |
2311 | if (INSN_CODE (insn) == CODE_FOR_blockage) | |
2312 | { | |
2313 | if (GET_MODE (insn) == TImode) | |
2314 | PUT_MODE (next_insn, TImode); | |
2315 | insn = next_insn; | |
2316 | next_insn = next_active_insn (insn); | |
2317 | } | |
2318 | addr = INSN_ADDRESSES (INSN_UID (insn)); | |
2319 | if ((CALL_P (insn) || JUMP_P (insn)) && SCHED_ON_EVEN_P (insn)) | |
2320 | { | |
2321 | if (((addr + length) & 7) != 0) | |
2322 | { | |
2323 | emit_nop_for_insn (prev_insn); | |
2324 | length += 4; | |
2325 | } | |
644459d0 | 2326 | } |
5a976006 | 2327 | else if (GET_MODE (insn) == TImode |
2328 | && ((next_insn && GET_MODE (next_insn) != TImode) | |
2329 | || get_attr_type (insn) == TYPE_MULTI0) | |
2330 | && ((addr + length) & 7) != 0) | |
2331 | { | |
2332 | /* prev_insn will always be set because the first insn is | |
2333 | always 8-byte aligned. */ | |
2334 | emit_nop_for_insn (prev_insn); | |
2335 | length += 4; | |
2336 | } | |
2337 | prev_insn = insn; | |
644459d0 | 2338 | } |
644459d0 | 2339 | } |
2340 | ||
5a976006 | 2341 | \f |
2342 | /* Routines for branch hints. */ | |
2343 | ||
644459d0 | 2344 | static void |
5a976006 | 2345 | spu_emit_branch_hint (rtx before, rtx branch, rtx target, |
2346 | int distance, sbitmap blocks) | |
644459d0 | 2347 | { |
5a976006 | 2348 | rtx branch_label = 0; |
2349 | rtx hint; | |
2350 | rtx insn; | |
2351 | rtx table; | |
644459d0 | 2352 | |
2353 | if (before == 0 || branch == 0 || target == 0) | |
2354 | return; | |
2355 | ||
5a976006 | 2356 | /* While scheduling we require hints to be no further than 600, so |
2357 | we need to enforce that here too */ | |
644459d0 | 2358 | if (distance > 600) |
2359 | return; | |
2360 | ||
5a976006 | 2361 | /* If we have a Basic block note, emit it after the basic block note. */ |
37534923 | 2362 | if (NOTE_INSN_BASIC_BLOCK_P (before)) |
5a976006 | 2363 | before = NEXT_INSN (before); |
644459d0 | 2364 | |
2365 | branch_label = gen_label_rtx (); | |
2366 | LABEL_NUSES (branch_label)++; | |
2367 | LABEL_PRESERVE_P (branch_label) = 1; | |
2368 | insn = emit_label_before (branch_label, branch); | |
2369 | branch_label = gen_rtx_LABEL_REF (VOIDmode, branch_label); | |
5a976006 | 2370 | SET_BIT (blocks, BLOCK_FOR_INSN (branch)->index); |
2371 | ||
2372 | hint = emit_insn_before (gen_hbr (branch_label, target), before); | |
2373 | recog_memoized (hint); | |
2fbdf9ef | 2374 | INSN_LOCATOR (hint) = INSN_LOCATOR (branch); |
5a976006 | 2375 | HINTED_P (branch) = 1; |
644459d0 | 2376 | |
5a976006 | 2377 | if (GET_CODE (target) == LABEL_REF) |
2378 | HINTED_P (XEXP (target, 0)) = 1; | |
2379 | else if (tablejump_p (branch, 0, &table)) | |
644459d0 | 2380 | { |
5a976006 | 2381 | rtvec vec; |
2382 | int j; | |
2383 | if (GET_CODE (PATTERN (table)) == ADDR_VEC) | |
2384 | vec = XVEC (PATTERN (table), 0); | |
2385 | else | |
2386 | vec = XVEC (PATTERN (table), 1); | |
2387 | for (j = GET_NUM_ELEM (vec) - 1; j >= 0; --j) | |
2388 | HINTED_P (XEXP (RTVEC_ELT (vec, j), 0)) = 1; | |
644459d0 | 2389 | } |
5a976006 | 2390 | |
2391 | if (distance >= 588) | |
644459d0 | 2392 | { |
5a976006 | 2393 | /* Make sure the hint isn't scheduled any earlier than this point, |
2394 | which could make it too far for the branch offest to fit */ | |
2fbdf9ef | 2395 | insn = emit_insn_before (gen_blockage (), hint); |
2396 | recog_memoized (insn); | |
2397 | INSN_LOCATOR (insn) = INSN_LOCATOR (hint); | |
5a976006 | 2398 | } |
2399 | else if (distance <= 8 * 4) | |
2400 | { | |
2401 | /* To guarantee at least 8 insns between the hint and branch we | |
2402 | insert nops. */ | |
2403 | int d; | |
2404 | for (d = distance; d < 8 * 4; d += 4) | |
2405 | { | |
2406 | insn = | |
2407 | emit_insn_after (gen_nopn_nv (gen_rtx_REG (SImode, 127)), hint); | |
2408 | recog_memoized (insn); | |
2fbdf9ef | 2409 | INSN_LOCATOR (insn) = INSN_LOCATOR (hint); |
5a976006 | 2410 | } |
2411 | ||
2412 | /* Make sure any nops inserted aren't scheduled before the hint. */ | |
2fbdf9ef | 2413 | insn = emit_insn_after (gen_blockage (), hint); |
2414 | recog_memoized (insn); | |
2415 | INSN_LOCATOR (insn) = INSN_LOCATOR (hint); | |
5a976006 | 2416 | |
2417 | /* Make sure any nops inserted aren't scheduled after the call. */ | |
2418 | if (CALL_P (branch) && distance < 8 * 4) | |
2fbdf9ef | 2419 | { |
2420 | insn = emit_insn_before (gen_blockage (), branch); | |
2421 | recog_memoized (insn); | |
2422 | INSN_LOCATOR (insn) = INSN_LOCATOR (branch); | |
2423 | } | |
644459d0 | 2424 | } |
644459d0 | 2425 | } |
2426 | ||
2427 | /* Returns 0 if we don't want a hint for this branch. Otherwise return | |
2428 | the rtx for the branch target. */ | |
2429 | static rtx | |
2430 | get_branch_target (rtx branch) | |
2431 | { | |
2432 | if (GET_CODE (branch) == JUMP_INSN) | |
2433 | { | |
2434 | rtx set, src; | |
2435 | ||
2436 | /* Return statements */ | |
2437 | if (GET_CODE (PATTERN (branch)) == RETURN) | |
2438 | return gen_rtx_REG (SImode, LINK_REGISTER_REGNUM); | |
2439 | ||
2440 | /* jump table */ | |
2441 | if (GET_CODE (PATTERN (branch)) == ADDR_VEC | |
2442 | || GET_CODE (PATTERN (branch)) == ADDR_DIFF_VEC) | |
2443 | return 0; | |
2444 | ||
fcc31b99 | 2445 | /* ASM GOTOs. */ |
604157f6 | 2446 | if (extract_asm_operands (PATTERN (branch)) != NULL) |
fcc31b99 | 2447 | return NULL; |
2448 | ||
644459d0 | 2449 | set = single_set (branch); |
2450 | src = SET_SRC (set); | |
2451 | if (GET_CODE (SET_DEST (set)) != PC) | |
2452 | abort (); | |
2453 | ||
2454 | if (GET_CODE (src) == IF_THEN_ELSE) | |
2455 | { | |
2456 | rtx lab = 0; | |
2457 | rtx note = find_reg_note (branch, REG_BR_PROB, 0); | |
2458 | if (note) | |
2459 | { | |
2460 | /* If the more probable case is not a fall through, then | |
2461 | try a branch hint. */ | |
2462 | HOST_WIDE_INT prob = INTVAL (XEXP (note, 0)); | |
2463 | if (prob > (REG_BR_PROB_BASE * 6 / 10) | |
2464 | && GET_CODE (XEXP (src, 1)) != PC) | |
2465 | lab = XEXP (src, 1); | |
2466 | else if (prob < (REG_BR_PROB_BASE * 4 / 10) | |
2467 | && GET_CODE (XEXP (src, 2)) != PC) | |
2468 | lab = XEXP (src, 2); | |
2469 | } | |
2470 | if (lab) | |
2471 | { | |
2472 | if (GET_CODE (lab) == RETURN) | |
2473 | return gen_rtx_REG (SImode, LINK_REGISTER_REGNUM); | |
2474 | return lab; | |
2475 | } | |
2476 | return 0; | |
2477 | } | |
2478 | ||
2479 | return src; | |
2480 | } | |
2481 | else if (GET_CODE (branch) == CALL_INSN) | |
2482 | { | |
2483 | rtx call; | |
2484 | /* All of our call patterns are in a PARALLEL and the CALL is | |
2485 | the first pattern in the PARALLEL. */ | |
2486 | if (GET_CODE (PATTERN (branch)) != PARALLEL) | |
2487 | abort (); | |
2488 | call = XVECEXP (PATTERN (branch), 0, 0); | |
2489 | if (GET_CODE (call) == SET) | |
2490 | call = SET_SRC (call); | |
2491 | if (GET_CODE (call) != CALL) | |
2492 | abort (); | |
2493 | return XEXP (XEXP (call, 0), 0); | |
2494 | } | |
2495 | return 0; | |
2496 | } | |
2497 | ||
5a976006 | 2498 | /* The special $hbr register is used to prevent the insn scheduler from |
2499 | moving hbr insns across instructions which invalidate them. It | |
2500 | should only be used in a clobber, and this function searches for | |
2501 | insns which clobber it. */ | |
2502 | static bool | |
2503 | insn_clobbers_hbr (rtx insn) | |
2504 | { | |
2505 | if (INSN_P (insn) | |
2506 | && GET_CODE (PATTERN (insn)) == PARALLEL) | |
2507 | { | |
2508 | rtx parallel = PATTERN (insn); | |
2509 | rtx clobber; | |
2510 | int j; | |
2511 | for (j = XVECLEN (parallel, 0) - 1; j >= 0; j--) | |
2512 | { | |
2513 | clobber = XVECEXP (parallel, 0, j); | |
2514 | if (GET_CODE (clobber) == CLOBBER | |
2515 | && GET_CODE (XEXP (clobber, 0)) == REG | |
2516 | && REGNO (XEXP (clobber, 0)) == HBR_REGNUM) | |
2517 | return 1; | |
2518 | } | |
2519 | } | |
2520 | return 0; | |
2521 | } | |
2522 | ||
2523 | /* Search up to 32 insns starting at FIRST: | |
2524 | - at any kind of hinted branch, just return | |
2525 | - at any unconditional branch in the first 15 insns, just return | |
2526 | - at a call or indirect branch, after the first 15 insns, force it to | |
2527 | an even address and return | |
2528 | - at any unconditional branch, after the first 15 insns, force it to | |
2529 | an even address. | |
2530 | At then end of the search, insert an hbrp within 4 insns of FIRST, | |
2531 | and an hbrp within 16 instructions of FIRST. | |
2532 | */ | |
644459d0 | 2533 | static void |
5a976006 | 2534 | insert_hbrp_for_ilb_runout (rtx first) |
644459d0 | 2535 | { |
5a976006 | 2536 | rtx insn, before_4 = 0, before_16 = 0; |
2537 | int addr = 0, length, first_addr = -1; | |
2538 | int hbrp_addr0 = 128 * 4, hbrp_addr1 = 128 * 4; | |
2539 | int insert_lnop_after = 0; | |
2540 | for (insn = first; insn; insn = NEXT_INSN (insn)) | |
2541 | if (INSN_P (insn)) | |
2542 | { | |
2543 | if (first_addr == -1) | |
2544 | first_addr = INSN_ADDRESSES (INSN_UID (insn)); | |
2545 | addr = INSN_ADDRESSES (INSN_UID (insn)) - first_addr; | |
2546 | length = get_attr_length (insn); | |
2547 | ||
2548 | if (before_4 == 0 && addr + length >= 4 * 4) | |
2549 | before_4 = insn; | |
2550 | /* We test for 14 instructions because the first hbrp will add | |
2551 | up to 2 instructions. */ | |
2552 | if (before_16 == 0 && addr + length >= 14 * 4) | |
2553 | before_16 = insn; | |
2554 | ||
2555 | if (INSN_CODE (insn) == CODE_FOR_hbr) | |
2556 | { | |
2557 | /* Make sure an hbrp is at least 2 cycles away from a hint. | |
2558 | Insert an lnop after the hbrp when necessary. */ | |
2559 | if (before_4 == 0 && addr > 0) | |
2560 | { | |
2561 | before_4 = insn; | |
2562 | insert_lnop_after |= 1; | |
2563 | } | |
2564 | else if (before_4 && addr <= 4 * 4) | |
2565 | insert_lnop_after |= 1; | |
2566 | if (before_16 == 0 && addr > 10 * 4) | |
2567 | { | |
2568 | before_16 = insn; | |
2569 | insert_lnop_after |= 2; | |
2570 | } | |
2571 | else if (before_16 && addr <= 14 * 4) | |
2572 | insert_lnop_after |= 2; | |
2573 | } | |
644459d0 | 2574 | |
5a976006 | 2575 | if (INSN_CODE (insn) == CODE_FOR_iprefetch) |
2576 | { | |
2577 | if (addr < hbrp_addr0) | |
2578 | hbrp_addr0 = addr; | |
2579 | else if (addr < hbrp_addr1) | |
2580 | hbrp_addr1 = addr; | |
2581 | } | |
644459d0 | 2582 | |
5a976006 | 2583 | if (CALL_P (insn) || JUMP_P (insn)) |
2584 | { | |
2585 | if (HINTED_P (insn)) | |
2586 | return; | |
2587 | ||
2588 | /* Any branch after the first 15 insns should be on an even | |
2589 | address to avoid a special case branch. There might be | |
2590 | some nops and/or hbrps inserted, so we test after 10 | |
2591 | insns. */ | |
2592 | if (addr > 10 * 4) | |
2593 | SCHED_ON_EVEN_P (insn) = 1; | |
2594 | } | |
644459d0 | 2595 | |
5a976006 | 2596 | if (CALL_P (insn) || tablejump_p (insn, 0, 0)) |
2597 | return; | |
2598 | ||
2599 | ||
2600 | if (addr + length >= 32 * 4) | |
644459d0 | 2601 | { |
5a976006 | 2602 | gcc_assert (before_4 && before_16); |
2603 | if (hbrp_addr0 > 4 * 4) | |
644459d0 | 2604 | { |
5a976006 | 2605 | insn = |
2606 | emit_insn_before (gen_iprefetch (GEN_INT (1)), before_4); | |
2607 | recog_memoized (insn); | |
2fbdf9ef | 2608 | INSN_LOCATOR (insn) = INSN_LOCATOR (before_4); |
5a976006 | 2609 | INSN_ADDRESSES_NEW (insn, |
2610 | INSN_ADDRESSES (INSN_UID (before_4))); | |
2611 | PUT_MODE (insn, GET_MODE (before_4)); | |
2612 | PUT_MODE (before_4, TImode); | |
2613 | if (insert_lnop_after & 1) | |
644459d0 | 2614 | { |
5a976006 | 2615 | insn = emit_insn_before (gen_lnop (), before_4); |
2616 | recog_memoized (insn); | |
2fbdf9ef | 2617 | INSN_LOCATOR (insn) = INSN_LOCATOR (before_4); |
5a976006 | 2618 | INSN_ADDRESSES_NEW (insn, |
2619 | INSN_ADDRESSES (INSN_UID (before_4))); | |
2620 | PUT_MODE (insn, TImode); | |
644459d0 | 2621 | } |
644459d0 | 2622 | } |
5a976006 | 2623 | if ((hbrp_addr0 <= 4 * 4 || hbrp_addr0 > 16 * 4) |
2624 | && hbrp_addr1 > 16 * 4) | |
644459d0 | 2625 | { |
5a976006 | 2626 | insn = |
2627 | emit_insn_before (gen_iprefetch (GEN_INT (2)), before_16); | |
2628 | recog_memoized (insn); | |
2fbdf9ef | 2629 | INSN_LOCATOR (insn) = INSN_LOCATOR (before_16); |
5a976006 | 2630 | INSN_ADDRESSES_NEW (insn, |
2631 | INSN_ADDRESSES (INSN_UID (before_16))); | |
2632 | PUT_MODE (insn, GET_MODE (before_16)); | |
2633 | PUT_MODE (before_16, TImode); | |
2634 | if (insert_lnop_after & 2) | |
644459d0 | 2635 | { |
5a976006 | 2636 | insn = emit_insn_before (gen_lnop (), before_16); |
2637 | recog_memoized (insn); | |
2fbdf9ef | 2638 | INSN_LOCATOR (insn) = INSN_LOCATOR (before_16); |
5a976006 | 2639 | INSN_ADDRESSES_NEW (insn, |
2640 | INSN_ADDRESSES (INSN_UID | |
2641 | (before_16))); | |
2642 | PUT_MODE (insn, TImode); | |
644459d0 | 2643 | } |
2644 | } | |
5a976006 | 2645 | return; |
644459d0 | 2646 | } |
644459d0 | 2647 | } |
5a976006 | 2648 | else if (BARRIER_P (insn)) |
2649 | return; | |
644459d0 | 2650 | |
644459d0 | 2651 | } |
5a976006 | 2652 | |
2653 | /* The SPU might hang when it executes 48 inline instructions after a | |
2654 | hinted branch jumps to its hinted target. The beginning of a | |
851d9296 | 2655 | function and the return from a call might have been hinted, and |
2656 | must be handled as well. To prevent a hang we insert 2 hbrps. The | |
2657 | first should be within 6 insns of the branch target. The second | |
2658 | should be within 22 insns of the branch target. When determining | |
2659 | if hbrps are necessary, we look for only 32 inline instructions, | |
2660 | because up to 12 nops and 4 hbrps could be inserted. Similarily, | |
2661 | when inserting new hbrps, we insert them within 4 and 16 insns of | |
2662 | the target. */ | |
644459d0 | 2663 | static void |
5a976006 | 2664 | insert_hbrp (void) |
644459d0 | 2665 | { |
5a976006 | 2666 | rtx insn; |
2667 | if (TARGET_SAFE_HINTS) | |
644459d0 | 2668 | { |
5a976006 | 2669 | shorten_branches (get_insns ()); |
2670 | /* Insert hbrp at beginning of function */ | |
2671 | insn = next_active_insn (get_insns ()); | |
2672 | if (insn) | |
2673 | insert_hbrp_for_ilb_runout (insn); | |
2674 | /* Insert hbrp after hinted targets. */ | |
2675 | for (insn = get_insns (); insn; insn = NEXT_INSN (insn)) | |
2676 | if ((LABEL_P (insn) && HINTED_P (insn)) || CALL_P (insn)) | |
2677 | insert_hbrp_for_ilb_runout (next_active_insn (insn)); | |
644459d0 | 2678 | } |
644459d0 | 2679 | } |
2680 | ||
5a976006 | 2681 | static int in_spu_reorg; |
2682 | ||
8a42230a | 2683 | static void |
2684 | spu_var_tracking (void) | |
2685 | { | |
2686 | if (flag_var_tracking) | |
2687 | { | |
2688 | df_analyze (); | |
2689 | timevar_push (TV_VAR_TRACKING); | |
2690 | variable_tracking_main (); | |
2691 | timevar_pop (TV_VAR_TRACKING); | |
2692 | df_finish_pass (false); | |
2693 | } | |
2694 | } | |
2695 | ||
5a976006 | 2696 | /* Insert branch hints. There are no branch optimizations after this |
2697 | pass, so it's safe to set our branch hints now. */ | |
644459d0 | 2698 | static void |
5a976006 | 2699 | spu_machine_dependent_reorg (void) |
644459d0 | 2700 | { |
5a976006 | 2701 | sbitmap blocks; |
2702 | basic_block bb; | |
2703 | rtx branch, insn; | |
2704 | rtx branch_target = 0; | |
2705 | int branch_addr = 0, insn_addr, required_dist = 0; | |
2706 | int i; | |
2707 | unsigned int j; | |
644459d0 | 2708 | |
5a976006 | 2709 | if (!TARGET_BRANCH_HINTS || optimize == 0) |
2710 | { | |
2711 | /* We still do it for unoptimized code because an external | |
2712 | function might have hinted a call or return. */ | |
2713 | insert_hbrp (); | |
2714 | pad_bb (); | |
8a42230a | 2715 | spu_var_tracking (); |
5a976006 | 2716 | return; |
2717 | } | |
644459d0 | 2718 | |
5a976006 | 2719 | blocks = sbitmap_alloc (last_basic_block); |
2720 | sbitmap_zero (blocks); | |
644459d0 | 2721 | |
5a976006 | 2722 | in_spu_reorg = 1; |
2723 | compute_bb_for_insn (); | |
2724 | ||
2725 | compact_blocks (); | |
2726 | ||
2727 | spu_bb_info = | |
2728 | (struct spu_bb_info *) xcalloc (n_basic_blocks, | |
2729 | sizeof (struct spu_bb_info)); | |
2730 | ||
2731 | /* We need exact insn addresses and lengths. */ | |
2732 | shorten_branches (get_insns ()); | |
2733 | ||
2734 | for (i = n_basic_blocks - 1; i >= 0; i--) | |
644459d0 | 2735 | { |
5a976006 | 2736 | bb = BASIC_BLOCK (i); |
2737 | branch = 0; | |
2738 | if (spu_bb_info[i].prop_jump) | |
644459d0 | 2739 | { |
5a976006 | 2740 | branch = spu_bb_info[i].prop_jump; |
2741 | branch_target = get_branch_target (branch); | |
2742 | branch_addr = INSN_ADDRESSES (INSN_UID (branch)); | |
2743 | required_dist = spu_hint_dist; | |
2744 | } | |
2745 | /* Search from end of a block to beginning. In this loop, find | |
2746 | jumps which need a branch and emit them only when: | |
2747 | - it's an indirect branch and we're at the insn which sets | |
2748 | the register | |
2749 | - we're at an insn that will invalidate the hint. e.g., a | |
2750 | call, another hint insn, inline asm that clobbers $hbr, and | |
2751 | some inlined operations (divmodsi4). Don't consider jumps | |
2752 | because they are only at the end of a block and are | |
2753 | considered when we are deciding whether to propagate | |
2754 | - we're getting too far away from the branch. The hbr insns | |
2755 | only have a signed 10 bit offset | |
2756 | We go back as far as possible so the branch will be considered | |
2757 | for propagation when we get to the beginning of the block. */ | |
2758 | for (insn = BB_END (bb); insn; insn = PREV_INSN (insn)) | |
2759 | { | |
2760 | if (INSN_P (insn)) | |
2761 | { | |
2762 | insn_addr = INSN_ADDRESSES (INSN_UID (insn)); | |
2763 | if (branch | |
2764 | && ((GET_CODE (branch_target) == REG | |
2765 | && set_of (branch_target, insn) != NULL_RTX) | |
2766 | || insn_clobbers_hbr (insn) | |
2767 | || branch_addr - insn_addr > 600)) | |
2768 | { | |
2769 | rtx next = NEXT_INSN (insn); | |
2770 | int next_addr = INSN_ADDRESSES (INSN_UID (next)); | |
2771 | if (insn != BB_END (bb) | |
2772 | && branch_addr - next_addr >= required_dist) | |
2773 | { | |
2774 | if (dump_file) | |
2775 | fprintf (dump_file, | |
2776 | "hint for %i in block %i before %i\n", | |
2777 | INSN_UID (branch), bb->index, | |
2778 | INSN_UID (next)); | |
2779 | spu_emit_branch_hint (next, branch, branch_target, | |
2780 | branch_addr - next_addr, blocks); | |
2781 | } | |
2782 | branch = 0; | |
2783 | } | |
2784 | ||
2785 | /* JUMP_P will only be true at the end of a block. When | |
2786 | branch is already set it means we've previously decided | |
2787 | to propagate a hint for that branch into this block. */ | |
2788 | if (CALL_P (insn) || (JUMP_P (insn) && !branch)) | |
2789 | { | |
2790 | branch = 0; | |
2791 | if ((branch_target = get_branch_target (insn))) | |
2792 | { | |
2793 | branch = insn; | |
2794 | branch_addr = insn_addr; | |
2795 | required_dist = spu_hint_dist; | |
2796 | } | |
2797 | } | |
2798 | } | |
2799 | if (insn == BB_HEAD (bb)) | |
2800 | break; | |
2801 | } | |
2802 | ||
2803 | if (branch) | |
2804 | { | |
2805 | /* If we haven't emitted a hint for this branch yet, it might | |
2806 | be profitable to emit it in one of the predecessor blocks, | |
2807 | especially for loops. */ | |
2808 | rtx bbend; | |
2809 | basic_block prev = 0, prop = 0, prev2 = 0; | |
2810 | int loop_exit = 0, simple_loop = 0; | |
2811 | int next_addr = INSN_ADDRESSES (INSN_UID (NEXT_INSN (insn))); | |
2812 | ||
2813 | for (j = 0; j < EDGE_COUNT (bb->preds); j++) | |
2814 | if (EDGE_PRED (bb, j)->flags & EDGE_FALLTHRU) | |
2815 | prev = EDGE_PRED (bb, j)->src; | |
2816 | else | |
2817 | prev2 = EDGE_PRED (bb, j)->src; | |
2818 | ||
2819 | for (j = 0; j < EDGE_COUNT (bb->succs); j++) | |
2820 | if (EDGE_SUCC (bb, j)->flags & EDGE_LOOP_EXIT) | |
2821 | loop_exit = 1; | |
2822 | else if (EDGE_SUCC (bb, j)->dest == bb) | |
2823 | simple_loop = 1; | |
2824 | ||
2825 | /* If this branch is a loop exit then propagate to previous | |
2826 | fallthru block. This catches the cases when it is a simple | |
2827 | loop or when there is an initial branch into the loop. */ | |
2828 | if (prev && (loop_exit || simple_loop) | |
2829 | && prev->loop_depth <= bb->loop_depth) | |
2830 | prop = prev; | |
2831 | ||
2832 | /* If there is only one adjacent predecessor. Don't propagate | |
2833 | outside this loop. This loop_depth test isn't perfect, but | |
2834 | I'm not sure the loop_father member is valid at this point. */ | |
2835 | else if (prev && single_pred_p (bb) | |
2836 | && prev->loop_depth == bb->loop_depth) | |
2837 | prop = prev; | |
2838 | ||
2839 | /* If this is the JOIN block of a simple IF-THEN then | |
2840 | propogate the hint to the HEADER block. */ | |
2841 | else if (prev && prev2 | |
2842 | && EDGE_COUNT (bb->preds) == 2 | |
2843 | && EDGE_COUNT (prev->preds) == 1 | |
2844 | && EDGE_PRED (prev, 0)->src == prev2 | |
2845 | && prev2->loop_depth == bb->loop_depth | |
2846 | && GET_CODE (branch_target) != REG) | |
2847 | prop = prev; | |
2848 | ||
2849 | /* Don't propagate when: | |
2850 | - this is a simple loop and the hint would be too far | |
2851 | - this is not a simple loop and there are 16 insns in | |
2852 | this block already | |
2853 | - the predecessor block ends in a branch that will be | |
2854 | hinted | |
2855 | - the predecessor block ends in an insn that invalidates | |
2856 | the hint */ | |
2857 | if (prop | |
2858 | && prop->index >= 0 | |
2859 | && (bbend = BB_END (prop)) | |
2860 | && branch_addr - INSN_ADDRESSES (INSN_UID (bbend)) < | |
2861 | (simple_loop ? 600 : 16 * 4) && get_branch_target (bbend) == 0 | |
2862 | && (JUMP_P (bbend) || !insn_clobbers_hbr (bbend))) | |
2863 | { | |
2864 | if (dump_file) | |
2865 | fprintf (dump_file, "propagate from %i to %i (loop depth %i) " | |
2866 | "for %i (loop_exit %i simple_loop %i dist %i)\n", | |
2867 | bb->index, prop->index, bb->loop_depth, | |
2868 | INSN_UID (branch), loop_exit, simple_loop, | |
2869 | branch_addr - INSN_ADDRESSES (INSN_UID (bbend))); | |
2870 | ||
2871 | spu_bb_info[prop->index].prop_jump = branch; | |
2872 | spu_bb_info[prop->index].bb_index = i; | |
2873 | } | |
2874 | else if (branch_addr - next_addr >= required_dist) | |
2875 | { | |
2876 | if (dump_file) | |
2877 | fprintf (dump_file, "hint for %i in block %i before %i\n", | |
2878 | INSN_UID (branch), bb->index, | |
2879 | INSN_UID (NEXT_INSN (insn))); | |
2880 | spu_emit_branch_hint (NEXT_INSN (insn), branch, branch_target, | |
2881 | branch_addr - next_addr, blocks); | |
2882 | } | |
2883 | branch = 0; | |
644459d0 | 2884 | } |
644459d0 | 2885 | } |
5a976006 | 2886 | free (spu_bb_info); |
644459d0 | 2887 | |
5a976006 | 2888 | if (!sbitmap_empty_p (blocks)) |
2889 | find_many_sub_basic_blocks (blocks); | |
2890 | ||
2891 | /* We have to schedule to make sure alignment is ok. */ | |
2892 | FOR_EACH_BB (bb) bb->flags &= ~BB_DISABLE_SCHEDULE; | |
2893 | ||
2894 | /* The hints need to be scheduled, so call it again. */ | |
2895 | schedule_insns (); | |
2fbdf9ef | 2896 | df_finish_pass (true); |
5a976006 | 2897 | |
2898 | insert_hbrp (); | |
2899 | ||
2900 | pad_bb (); | |
2901 | ||
8f1d58ad | 2902 | for (insn = get_insns (); insn; insn = NEXT_INSN (insn)) |
2903 | if (NONJUMP_INSN_P (insn) && INSN_CODE (insn) == CODE_FOR_hbr) | |
2904 | { | |
2905 | /* Adjust the LABEL_REF in a hint when we have inserted a nop | |
2906 | between its branch label and the branch . We don't move the | |
2907 | label because GCC expects it at the beginning of the block. */ | |
2908 | rtx unspec = SET_SRC (XVECEXP (PATTERN (insn), 0, 0)); | |
2909 | rtx label_ref = XVECEXP (unspec, 0, 0); | |
2910 | rtx label = XEXP (label_ref, 0); | |
2911 | rtx branch; | |
2912 | int offset = 0; | |
2913 | for (branch = NEXT_INSN (label); | |
2914 | !JUMP_P (branch) && !CALL_P (branch); | |
2915 | branch = NEXT_INSN (branch)) | |
2916 | if (NONJUMP_INSN_P (branch)) | |
2917 | offset += get_attr_length (branch); | |
2918 | if (offset > 0) | |
2919 | XVECEXP (unspec, 0, 0) = plus_constant (label_ref, offset); | |
2920 | } | |
5a976006 | 2921 | |
8a42230a | 2922 | spu_var_tracking (); |
5a976006 | 2923 | |
2924 | free_bb_for_insn (); | |
2925 | ||
2926 | in_spu_reorg = 0; | |
644459d0 | 2927 | } |
2928 | \f | |
2929 | ||
2930 | /* Insn scheduling routines, primarily for dual issue. */ | |
2931 | static int | |
2932 | spu_sched_issue_rate (void) | |
2933 | { | |
2934 | return 2; | |
2935 | } | |
2936 | ||
2937 | static int | |
5a976006 | 2938 | uses_ls_unit(rtx insn) |
644459d0 | 2939 | { |
5a976006 | 2940 | rtx set = single_set (insn); |
2941 | if (set != 0 | |
2942 | && (GET_CODE (SET_DEST (set)) == MEM | |
2943 | || GET_CODE (SET_SRC (set)) == MEM)) | |
2944 | return 1; | |
2945 | return 0; | |
644459d0 | 2946 | } |
2947 | ||
2948 | static int | |
2949 | get_pipe (rtx insn) | |
2950 | { | |
2951 | enum attr_type t; | |
2952 | /* Handle inline asm */ | |
2953 | if (INSN_CODE (insn) == -1) | |
2954 | return -1; | |
2955 | t = get_attr_type (insn); | |
2956 | switch (t) | |
2957 | { | |
2958 | case TYPE_CONVERT: | |
2959 | return -2; | |
2960 | case TYPE_MULTI0: | |
2961 | return -1; | |
2962 | ||
2963 | case TYPE_FX2: | |
2964 | case TYPE_FX3: | |
2965 | case TYPE_SPR: | |
2966 | case TYPE_NOP: | |
2967 | case TYPE_FXB: | |
2968 | case TYPE_FPD: | |
2969 | case TYPE_FP6: | |
2970 | case TYPE_FP7: | |
644459d0 | 2971 | return 0; |
2972 | ||
2973 | case TYPE_LNOP: | |
2974 | case TYPE_SHUF: | |
2975 | case TYPE_LOAD: | |
2976 | case TYPE_STORE: | |
2977 | case TYPE_BR: | |
2978 | case TYPE_MULTI1: | |
2979 | case TYPE_HBR: | |
5a976006 | 2980 | case TYPE_IPREFETCH: |
644459d0 | 2981 | return 1; |
2982 | default: | |
2983 | abort (); | |
2984 | } | |
2985 | } | |
2986 | ||
5a976006 | 2987 | |
2988 | /* haifa-sched.c has a static variable that keeps track of the current | |
2989 | cycle. It is passed to spu_sched_reorder, and we record it here for | |
2990 | use by spu_sched_variable_issue. It won't be accurate if the | |
2991 | scheduler updates it's clock_var between the two calls. */ | |
2992 | static int clock_var; | |
2993 | ||
2994 | /* This is used to keep track of insn alignment. Set to 0 at the | |
2995 | beginning of each block and increased by the "length" attr of each | |
2996 | insn scheduled. */ | |
2997 | static int spu_sched_length; | |
2998 | ||
2999 | /* Record when we've issued pipe0 and pipe1 insns so we can reorder the | |
3000 | ready list appropriately in spu_sched_reorder(). */ | |
3001 | static int pipe0_clock; | |
3002 | static int pipe1_clock; | |
3003 | ||
3004 | static int prev_clock_var; | |
3005 | ||
3006 | static int prev_priority; | |
3007 | ||
3008 | /* The SPU needs to load the next ilb sometime during the execution of | |
3009 | the previous ilb. There is a potential conflict if every cycle has a | |
3010 | load or store. To avoid the conflict we make sure the load/store | |
3011 | unit is free for at least one cycle during the execution of insns in | |
3012 | the previous ilb. */ | |
3013 | static int spu_ls_first; | |
3014 | static int prev_ls_clock; | |
3015 | ||
3016 | static void | |
3017 | spu_sched_init_global (FILE *file ATTRIBUTE_UNUSED, int verbose ATTRIBUTE_UNUSED, | |
3018 | int max_ready ATTRIBUTE_UNUSED) | |
3019 | { | |
3020 | spu_sched_length = 0; | |
3021 | } | |
3022 | ||
3023 | static void | |
3024 | spu_sched_init (FILE *file ATTRIBUTE_UNUSED, int verbose ATTRIBUTE_UNUSED, | |
3025 | int max_ready ATTRIBUTE_UNUSED) | |
3026 | { | |
3027 | if (align_labels > 4 || align_loops > 4 || align_jumps > 4) | |
3028 | { | |
3029 | /* When any block might be at least 8-byte aligned, assume they | |
3030 | will all be at least 8-byte aligned to make sure dual issue | |
3031 | works out correctly. */ | |
3032 | spu_sched_length = 0; | |
3033 | } | |
3034 | spu_ls_first = INT_MAX; | |
3035 | clock_var = -1; | |
3036 | prev_ls_clock = -1; | |
3037 | pipe0_clock = -1; | |
3038 | pipe1_clock = -1; | |
3039 | prev_clock_var = -1; | |
3040 | prev_priority = -1; | |
3041 | } | |
3042 | ||
644459d0 | 3043 | static int |
5a976006 | 3044 | spu_sched_variable_issue (FILE *file ATTRIBUTE_UNUSED, |
3045 | int verbose ATTRIBUTE_UNUSED, rtx insn, int more) | |
644459d0 | 3046 | { |
5a976006 | 3047 | int len; |
3048 | int p; | |
644459d0 | 3049 | if (GET_CODE (PATTERN (insn)) == USE |
3050 | || GET_CODE (PATTERN (insn)) == CLOBBER | |
5a976006 | 3051 | || (len = get_attr_length (insn)) == 0) |
3052 | return more; | |
3053 | ||
3054 | spu_sched_length += len; | |
3055 | ||
3056 | /* Reset on inline asm */ | |
3057 | if (INSN_CODE (insn) == -1) | |
3058 | { | |
3059 | spu_ls_first = INT_MAX; | |
3060 | pipe0_clock = -1; | |
3061 | pipe1_clock = -1; | |
3062 | return 0; | |
3063 | } | |
3064 | p = get_pipe (insn); | |
3065 | if (p == 0) | |
3066 | pipe0_clock = clock_var; | |
3067 | else | |
3068 | pipe1_clock = clock_var; | |
3069 | ||
3070 | if (in_spu_reorg) | |
3071 | { | |
3072 | if (clock_var - prev_ls_clock > 1 | |
3073 | || INSN_CODE (insn) == CODE_FOR_iprefetch) | |
3074 | spu_ls_first = INT_MAX; | |
3075 | if (uses_ls_unit (insn)) | |
3076 | { | |
3077 | if (spu_ls_first == INT_MAX) | |
3078 | spu_ls_first = spu_sched_length; | |
3079 | prev_ls_clock = clock_var; | |
3080 | } | |
3081 | ||
3082 | /* The scheduler hasn't inserted the nop, but we will later on. | |
3083 | Include those nops in spu_sched_length. */ | |
3084 | if (prev_clock_var == clock_var && (spu_sched_length & 7)) | |
3085 | spu_sched_length += 4; | |
3086 | prev_clock_var = clock_var; | |
3087 | ||
3088 | /* more is -1 when called from spu_sched_reorder for new insns | |
3089 | that don't have INSN_PRIORITY */ | |
3090 | if (more >= 0) | |
3091 | prev_priority = INSN_PRIORITY (insn); | |
3092 | } | |
3093 | ||
3094 | /* Always try issueing more insns. spu_sched_reorder will decide | |
3095 | when the cycle should be advanced. */ | |
3096 | return 1; | |
3097 | } | |
3098 | ||
3099 | /* This function is called for both TARGET_SCHED_REORDER and | |
3100 | TARGET_SCHED_REORDER2. */ | |
3101 | static int | |
3102 | spu_sched_reorder (FILE *file ATTRIBUTE_UNUSED, int verbose ATTRIBUTE_UNUSED, | |
3103 | rtx *ready, int *nreadyp, int clock) | |
3104 | { | |
3105 | int i, nready = *nreadyp; | |
3106 | int pipe_0, pipe_1, pipe_hbrp, pipe_ls, schedule_i; | |
3107 | rtx insn; | |
3108 | ||
3109 | clock_var = clock; | |
3110 | ||
3111 | if (nready <= 0 || pipe1_clock >= clock) | |
3112 | return 0; | |
3113 | ||
3114 | /* Find any rtl insns that don't generate assembly insns and schedule | |
3115 | them first. */ | |
3116 | for (i = nready - 1; i >= 0; i--) | |
3117 | { | |
3118 | insn = ready[i]; | |
3119 | if (INSN_CODE (insn) == -1 | |
3120 | || INSN_CODE (insn) == CODE_FOR_blockage | |
9d98604b | 3121 | || (INSN_P (insn) && get_attr_length (insn) == 0)) |
5a976006 | 3122 | { |
3123 | ready[i] = ready[nready - 1]; | |
3124 | ready[nready - 1] = insn; | |
3125 | return 1; | |
3126 | } | |
3127 | } | |
3128 | ||
3129 | pipe_0 = pipe_1 = pipe_hbrp = pipe_ls = schedule_i = -1; | |
3130 | for (i = 0; i < nready; i++) | |
3131 | if (INSN_CODE (ready[i]) != -1) | |
3132 | { | |
3133 | insn = ready[i]; | |
3134 | switch (get_attr_type (insn)) | |
3135 | { | |
3136 | default: | |
3137 | case TYPE_MULTI0: | |
3138 | case TYPE_CONVERT: | |
3139 | case TYPE_FX2: | |
3140 | case TYPE_FX3: | |
3141 | case TYPE_SPR: | |
3142 | case TYPE_NOP: | |
3143 | case TYPE_FXB: | |
3144 | case TYPE_FPD: | |
3145 | case TYPE_FP6: | |
3146 | case TYPE_FP7: | |
3147 | pipe_0 = i; | |
3148 | break; | |
3149 | case TYPE_LOAD: | |
3150 | case TYPE_STORE: | |
3151 | pipe_ls = i; | |
3152 | case TYPE_LNOP: | |
3153 | case TYPE_SHUF: | |
3154 | case TYPE_BR: | |
3155 | case TYPE_MULTI1: | |
3156 | case TYPE_HBR: | |
3157 | pipe_1 = i; | |
3158 | break; | |
3159 | case TYPE_IPREFETCH: | |
3160 | pipe_hbrp = i; | |
3161 | break; | |
3162 | } | |
3163 | } | |
3164 | ||
3165 | /* In the first scheduling phase, schedule loads and stores together | |
3166 | to increase the chance they will get merged during postreload CSE. */ | |
3167 | if (!reload_completed && pipe_ls >= 0) | |
3168 | { | |
3169 | insn = ready[pipe_ls]; | |
3170 | ready[pipe_ls] = ready[nready - 1]; | |
3171 | ready[nready - 1] = insn; | |
3172 | return 1; | |
3173 | } | |
3174 | ||
3175 | /* If there is an hbrp ready, prefer it over other pipe 1 insns. */ | |
3176 | if (pipe_hbrp >= 0) | |
3177 | pipe_1 = pipe_hbrp; | |
3178 | ||
3179 | /* When we have loads/stores in every cycle of the last 15 insns and | |
3180 | we are about to schedule another load/store, emit an hbrp insn | |
3181 | instead. */ | |
3182 | if (in_spu_reorg | |
3183 | && spu_sched_length - spu_ls_first >= 4 * 15 | |
3184 | && !(pipe0_clock < clock && pipe_0 >= 0) && pipe_1 == pipe_ls) | |
3185 | { | |
3186 | insn = sched_emit_insn (gen_iprefetch (GEN_INT (3))); | |
3187 | recog_memoized (insn); | |
3188 | if (pipe0_clock < clock) | |
3189 | PUT_MODE (insn, TImode); | |
3190 | spu_sched_variable_issue (file, verbose, insn, -1); | |
3191 | return 0; | |
3192 | } | |
3193 | ||
3194 | /* In general, we want to emit nops to increase dual issue, but dual | |
3195 | issue isn't faster when one of the insns could be scheduled later | |
3196 | without effecting the critical path. We look at INSN_PRIORITY to | |
3197 | make a good guess, but it isn't perfect so -mdual-nops=n can be | |
3198 | used to effect it. */ | |
3199 | if (in_spu_reorg && spu_dual_nops < 10) | |
3200 | { | |
3201 | /* When we are at an even address and we are not issueing nops to | |
3202 | improve scheduling then we need to advance the cycle. */ | |
3203 | if ((spu_sched_length & 7) == 0 && prev_clock_var == clock | |
3204 | && (spu_dual_nops == 0 | |
3205 | || (pipe_1 != -1 | |
3206 | && prev_priority > | |
3207 | INSN_PRIORITY (ready[pipe_1]) + spu_dual_nops))) | |
3208 | return 0; | |
3209 | ||
3210 | /* When at an odd address, schedule the highest priority insn | |
3211 | without considering pipeline. */ | |
3212 | if ((spu_sched_length & 7) == 4 && prev_clock_var != clock | |
3213 | && (spu_dual_nops == 0 | |
3214 | || (prev_priority > | |
3215 | INSN_PRIORITY (ready[nready - 1]) + spu_dual_nops))) | |
3216 | return 1; | |
3217 | } | |
3218 | ||
3219 | ||
3220 | /* We haven't issued a pipe0 insn yet this cycle, if there is a | |
3221 | pipe0 insn in the ready list, schedule it. */ | |
3222 | if (pipe0_clock < clock && pipe_0 >= 0) | |
3223 | schedule_i = pipe_0; | |
3224 | ||
3225 | /* Either we've scheduled a pipe0 insn already or there is no pipe0 | |
3226 | insn to schedule. Put a pipe1 insn at the front of the ready list. */ | |
3227 | else | |
3228 | schedule_i = pipe_1; | |
3229 | ||
3230 | if (schedule_i > -1) | |
3231 | { | |
3232 | insn = ready[schedule_i]; | |
3233 | ready[schedule_i] = ready[nready - 1]; | |
3234 | ready[nready - 1] = insn; | |
3235 | return 1; | |
3236 | } | |
3237 | return 0; | |
644459d0 | 3238 | } |
3239 | ||
3240 | /* INSN is dependent on DEP_INSN. */ | |
3241 | static int | |
5a976006 | 3242 | spu_sched_adjust_cost (rtx insn, rtx link, rtx dep_insn, int cost) |
644459d0 | 3243 | { |
5a976006 | 3244 | rtx set; |
3245 | ||
3246 | /* The blockage pattern is used to prevent instructions from being | |
3247 | moved across it and has no cost. */ | |
3248 | if (INSN_CODE (insn) == CODE_FOR_blockage | |
3249 | || INSN_CODE (dep_insn) == CODE_FOR_blockage) | |
3250 | return 0; | |
3251 | ||
9d98604b | 3252 | if ((INSN_P (insn) && get_attr_length (insn) == 0) |
3253 | || (INSN_P (dep_insn) && get_attr_length (dep_insn) == 0)) | |
5a976006 | 3254 | return 0; |
3255 | ||
3256 | /* Make sure hbrps are spread out. */ | |
3257 | if (INSN_CODE (insn) == CODE_FOR_iprefetch | |
3258 | && INSN_CODE (dep_insn) == CODE_FOR_iprefetch) | |
3259 | return 8; | |
3260 | ||
3261 | /* Make sure hints and hbrps are 2 cycles apart. */ | |
3262 | if ((INSN_CODE (insn) == CODE_FOR_iprefetch | |
3263 | || INSN_CODE (insn) == CODE_FOR_hbr) | |
3264 | && (INSN_CODE (dep_insn) == CODE_FOR_iprefetch | |
3265 | || INSN_CODE (dep_insn) == CODE_FOR_hbr)) | |
3266 | return 2; | |
3267 | ||
3268 | /* An hbrp has no real dependency on other insns. */ | |
3269 | if (INSN_CODE (insn) == CODE_FOR_iprefetch | |
3270 | || INSN_CODE (dep_insn) == CODE_FOR_iprefetch) | |
3271 | return 0; | |
3272 | ||
3273 | /* Assuming that it is unlikely an argument register will be used in | |
3274 | the first cycle of the called function, we reduce the cost for | |
3275 | slightly better scheduling of dep_insn. When not hinted, the | |
3276 | mispredicted branch would hide the cost as well. */ | |
3277 | if (CALL_P (insn)) | |
3278 | { | |
3279 | rtx target = get_branch_target (insn); | |
3280 | if (GET_CODE (target) != REG || !set_of (target, insn)) | |
3281 | return cost - 2; | |
3282 | return cost; | |
3283 | } | |
3284 | ||
3285 | /* And when returning from a function, let's assume the return values | |
3286 | are completed sooner too. */ | |
3287 | if (CALL_P (dep_insn)) | |
644459d0 | 3288 | return cost - 2; |
5a976006 | 3289 | |
3290 | /* Make sure an instruction that loads from the back chain is schedule | |
3291 | away from the return instruction so a hint is more likely to get | |
3292 | issued. */ | |
3293 | if (INSN_CODE (insn) == CODE_FOR__return | |
3294 | && (set = single_set (dep_insn)) | |
3295 | && GET_CODE (SET_DEST (set)) == REG | |
3296 | && REGNO (SET_DEST (set)) == LINK_REGISTER_REGNUM) | |
3297 | return 20; | |
3298 | ||
644459d0 | 3299 | /* The dfa scheduler sets cost to 0 for all anti-dependencies and the |
3300 | scheduler makes every insn in a block anti-dependent on the final | |
3301 | jump_insn. We adjust here so higher cost insns will get scheduled | |
3302 | earlier. */ | |
5a976006 | 3303 | if (JUMP_P (insn) && REG_NOTE_KIND (link) == REG_DEP_ANTI) |
9997bd27 | 3304 | return insn_cost (dep_insn) - 3; |
5a976006 | 3305 | |
644459d0 | 3306 | return cost; |
3307 | } | |
3308 | \f | |
3309 | /* Create a CONST_DOUBLE from a string. */ | |
842ae815 | 3310 | rtx |
644459d0 | 3311 | spu_float_const (const char *string, enum machine_mode mode) |
3312 | { | |
3313 | REAL_VALUE_TYPE value; | |
3314 | value = REAL_VALUE_ATOF (string, mode); | |
3315 | return CONST_DOUBLE_FROM_REAL_VALUE (value, mode); | |
3316 | } | |
3317 | ||
644459d0 | 3318 | int |
3319 | spu_constant_address_p (rtx x) | |
3320 | { | |
3321 | return (GET_CODE (x) == LABEL_REF || GET_CODE (x) == SYMBOL_REF | |
3322 | || GET_CODE (x) == CONST_INT || GET_CODE (x) == CONST | |
3323 | || GET_CODE (x) == HIGH); | |
3324 | } | |
3325 | ||
3326 | static enum spu_immediate | |
3327 | which_immediate_load (HOST_WIDE_INT val) | |
3328 | { | |
3329 | gcc_assert (val == trunc_int_for_mode (val, SImode)); | |
3330 | ||
3331 | if (val >= -0x8000 && val <= 0x7fff) | |
3332 | return SPU_IL; | |
3333 | if (val >= 0 && val <= 0x3ffff) | |
3334 | return SPU_ILA; | |
3335 | if ((val & 0xffff) == ((val >> 16) & 0xffff)) | |
3336 | return SPU_ILH; | |
3337 | if ((val & 0xffff) == 0) | |
3338 | return SPU_ILHU; | |
3339 | ||
3340 | return SPU_NONE; | |
3341 | } | |
3342 | ||
dea01258 | 3343 | /* Return true when OP can be loaded by one of the il instructions, or |
3344 | when flow2 is not completed and OP can be loaded using ilhu and iohl. */ | |
644459d0 | 3345 | int |
3346 | immediate_load_p (rtx op, enum machine_mode mode) | |
dea01258 | 3347 | { |
3348 | if (CONSTANT_P (op)) | |
3349 | { | |
3350 | enum immediate_class c = classify_immediate (op, mode); | |
5df189be | 3351 | return c == IC_IL1 || c == IC_IL1s |
3072d30e | 3352 | || (!epilogue_completed && (c == IC_IL2 || c == IC_IL2s)); |
dea01258 | 3353 | } |
3354 | return 0; | |
3355 | } | |
3356 | ||
3357 | /* Return true if the first SIZE bytes of arr is a constant that can be | |
3358 | generated with cbd, chd, cwd or cdd. When non-NULL, PRUN and PSTART | |
3359 | represent the size and offset of the instruction to use. */ | |
3360 | static int | |
3361 | cpat_info(unsigned char *arr, int size, int *prun, int *pstart) | |
3362 | { | |
3363 | int cpat, run, i, start; | |
3364 | cpat = 1; | |
3365 | run = 0; | |
3366 | start = -1; | |
3367 | for (i = 0; i < size && cpat; i++) | |
3368 | if (arr[i] != i+16) | |
3369 | { | |
3370 | if (!run) | |
3371 | { | |
3372 | start = i; | |
3373 | if (arr[i] == 3) | |
3374 | run = 1; | |
3375 | else if (arr[i] == 2 && arr[i+1] == 3) | |
3376 | run = 2; | |
3377 | else if (arr[i] == 0) | |
3378 | { | |
3379 | while (arr[i+run] == run && i+run < 16) | |
3380 | run++; | |
3381 | if (run != 4 && run != 8) | |
3382 | cpat = 0; | |
3383 | } | |
3384 | else | |
3385 | cpat = 0; | |
3386 | if ((i & (run-1)) != 0) | |
3387 | cpat = 0; | |
3388 | i += run; | |
3389 | } | |
3390 | else | |
3391 | cpat = 0; | |
3392 | } | |
b01a6dc3 | 3393 | if (cpat && (run || size < 16)) |
dea01258 | 3394 | { |
3395 | if (run == 0) | |
3396 | run = 1; | |
3397 | if (prun) | |
3398 | *prun = run; | |
3399 | if (pstart) | |
3400 | *pstart = start == -1 ? 16-run : start; | |
3401 | return 1; | |
3402 | } | |
3403 | return 0; | |
3404 | } | |
3405 | ||
3406 | /* OP is a CONSTANT_P. Determine what instructions can be used to load | |
d819917f | 3407 | it into a register. MODE is only valid when OP is a CONST_INT. */ |
dea01258 | 3408 | static enum immediate_class |
3409 | classify_immediate (rtx op, enum machine_mode mode) | |
644459d0 | 3410 | { |
3411 | HOST_WIDE_INT val; | |
3412 | unsigned char arr[16]; | |
5df189be | 3413 | int i, j, repeated, fsmbi, repeat; |
dea01258 | 3414 | |
3415 | gcc_assert (CONSTANT_P (op)); | |
3416 | ||
644459d0 | 3417 | if (GET_MODE (op) != VOIDmode) |
3418 | mode = GET_MODE (op); | |
3419 | ||
dea01258 | 3420 | /* A V4SI const_vector with all identical symbols is ok. */ |
5df189be | 3421 | if (!flag_pic |
3422 | && mode == V4SImode | |
dea01258 | 3423 | && GET_CODE (op) == CONST_VECTOR |
3424 | && GET_CODE (CONST_VECTOR_ELT (op, 0)) != CONST_INT | |
3425 | && GET_CODE (CONST_VECTOR_ELT (op, 0)) != CONST_DOUBLE | |
3426 | && CONST_VECTOR_ELT (op, 0) == CONST_VECTOR_ELT (op, 1) | |
3427 | && CONST_VECTOR_ELT (op, 1) == CONST_VECTOR_ELT (op, 2) | |
3428 | && CONST_VECTOR_ELT (op, 2) == CONST_VECTOR_ELT (op, 3)) | |
3429 | op = CONST_VECTOR_ELT (op, 0); | |
644459d0 | 3430 | |
dea01258 | 3431 | switch (GET_CODE (op)) |
3432 | { | |
3433 | case SYMBOL_REF: | |
3434 | case LABEL_REF: | |
3435 | return TARGET_LARGE_MEM ? IC_IL2s : IC_IL1s; | |
644459d0 | 3436 | |
dea01258 | 3437 | case CONST: |
0cfc65d4 | 3438 | /* We can never know if the resulting address fits in 18 bits and can be |
3439 | loaded with ila. For now, assume the address will not overflow if | |
3440 | the displacement is "small" (fits 'K' constraint). */ | |
3441 | if (!TARGET_LARGE_MEM && GET_CODE (XEXP (op, 0)) == PLUS) | |
3442 | { | |
3443 | rtx sym = XEXP (XEXP (op, 0), 0); | |
3444 | rtx cst = XEXP (XEXP (op, 0), 1); | |
3445 | ||
3446 | if (GET_CODE (sym) == SYMBOL_REF | |
3447 | && GET_CODE (cst) == CONST_INT | |
3448 | && satisfies_constraint_K (cst)) | |
3449 | return IC_IL1s; | |
3450 | } | |
3451 | return IC_IL2s; | |
644459d0 | 3452 | |
dea01258 | 3453 | case HIGH: |
3454 | return IC_IL1s; | |
3455 | ||
3456 | case CONST_VECTOR: | |
3457 | for (i = 0; i < GET_MODE_NUNITS (mode); i++) | |
3458 | if (GET_CODE (CONST_VECTOR_ELT (op, i)) != CONST_INT | |
3459 | && GET_CODE (CONST_VECTOR_ELT (op, i)) != CONST_DOUBLE) | |
3460 | return IC_POOL; | |
3461 | /* Fall through. */ | |
3462 | ||
3463 | case CONST_INT: | |
3464 | case CONST_DOUBLE: | |
3465 | constant_to_array (mode, op, arr); | |
644459d0 | 3466 | |
dea01258 | 3467 | /* Check that each 4-byte slot is identical. */ |
3468 | repeated = 1; | |
3469 | for (i = 4; i < 16; i += 4) | |
3470 | for (j = 0; j < 4; j++) | |
3471 | if (arr[j] != arr[i + j]) | |
3472 | repeated = 0; | |
3473 | ||
3474 | if (repeated) | |
3475 | { | |
3476 | val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; | |
3477 | val = trunc_int_for_mode (val, SImode); | |
3478 | ||
3479 | if (which_immediate_load (val) != SPU_NONE) | |
3480 | return IC_IL1; | |
3481 | } | |
3482 | ||
3483 | /* Any mode of 2 bytes or smaller can be loaded with an il | |
3484 | instruction. */ | |
3485 | gcc_assert (GET_MODE_SIZE (mode) > 2); | |
3486 | ||
3487 | fsmbi = 1; | |
5df189be | 3488 | repeat = 0; |
dea01258 | 3489 | for (i = 0; i < 16 && fsmbi; i++) |
5df189be | 3490 | if (arr[i] != 0 && repeat == 0) |
3491 | repeat = arr[i]; | |
3492 | else if (arr[i] != 0 && arr[i] != repeat) | |
dea01258 | 3493 | fsmbi = 0; |
3494 | if (fsmbi) | |
5df189be | 3495 | return repeat == 0xff ? IC_FSMBI : IC_FSMBI2; |
dea01258 | 3496 | |
3497 | if (cpat_info (arr, GET_MODE_SIZE (mode), 0, 0)) | |
3498 | return IC_CPAT; | |
3499 | ||
3500 | if (repeated) | |
3501 | return IC_IL2; | |
3502 | ||
3503 | return IC_POOL; | |
3504 | default: | |
3505 | break; | |
3506 | } | |
3507 | gcc_unreachable (); | |
644459d0 | 3508 | } |
3509 | ||
3510 | static enum spu_immediate | |
3511 | which_logical_immediate (HOST_WIDE_INT val) | |
3512 | { | |
3513 | gcc_assert (val == trunc_int_for_mode (val, SImode)); | |
3514 | ||
3515 | if (val >= -0x200 && val <= 0x1ff) | |
3516 | return SPU_ORI; | |
3517 | if (val >= 0 && val <= 0xffff) | |
3518 | return SPU_IOHL; | |
3519 | if ((val & 0xffff) == ((val >> 16) & 0xffff)) | |
3520 | { | |
3521 | val = trunc_int_for_mode (val, HImode); | |
3522 | if (val >= -0x200 && val <= 0x1ff) | |
3523 | return SPU_ORHI; | |
3524 | if ((val & 0xff) == ((val >> 8) & 0xff)) | |
3525 | { | |
3526 | val = trunc_int_for_mode (val, QImode); | |
3527 | if (val >= -0x200 && val <= 0x1ff) | |
3528 | return SPU_ORBI; | |
3529 | } | |
3530 | } | |
3531 | return SPU_NONE; | |
3532 | } | |
3533 | ||
5df189be | 3534 | /* Return TRUE when X, a CONST_VECTOR, only contains CONST_INTs or |
3535 | CONST_DOUBLEs. */ | |
3536 | static int | |
3537 | const_vector_immediate_p (rtx x) | |
3538 | { | |
3539 | int i; | |
3540 | gcc_assert (GET_CODE (x) == CONST_VECTOR); | |
3541 | for (i = 0; i < GET_MODE_NUNITS (GET_MODE (x)); i++) | |
3542 | if (GET_CODE (CONST_VECTOR_ELT (x, i)) != CONST_INT | |
3543 | && GET_CODE (CONST_VECTOR_ELT (x, i)) != CONST_DOUBLE) | |
3544 | return 0; | |
3545 | return 1; | |
3546 | } | |
3547 | ||
644459d0 | 3548 | int |
3549 | logical_immediate_p (rtx op, enum machine_mode mode) | |
3550 | { | |
3551 | HOST_WIDE_INT val; | |
3552 | unsigned char arr[16]; | |
3553 | int i, j; | |
3554 | ||
3555 | gcc_assert (GET_CODE (op) == CONST_INT || GET_CODE (op) == CONST_DOUBLE | |
3556 | || GET_CODE (op) == CONST_VECTOR); | |
3557 | ||
5df189be | 3558 | if (GET_CODE (op) == CONST_VECTOR |
3559 | && !const_vector_immediate_p (op)) | |
3560 | return 0; | |
3561 | ||
644459d0 | 3562 | if (GET_MODE (op) != VOIDmode) |
3563 | mode = GET_MODE (op); | |
3564 | ||
3565 | constant_to_array (mode, op, arr); | |
3566 | ||
3567 | /* Check that bytes are repeated. */ | |
3568 | for (i = 4; i < 16; i += 4) | |
3569 | for (j = 0; j < 4; j++) | |
3570 | if (arr[j] != arr[i + j]) | |
3571 | return 0; | |
3572 | ||
3573 | val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; | |
3574 | val = trunc_int_for_mode (val, SImode); | |
3575 | ||
3576 | i = which_logical_immediate (val); | |
3577 | return i != SPU_NONE && i != SPU_IOHL; | |
3578 | } | |
3579 | ||
3580 | int | |
3581 | iohl_immediate_p (rtx op, enum machine_mode mode) | |
3582 | { | |
3583 | HOST_WIDE_INT val; | |
3584 | unsigned char arr[16]; | |
3585 | int i, j; | |
3586 | ||
3587 | gcc_assert (GET_CODE (op) == CONST_INT || GET_CODE (op) == CONST_DOUBLE | |
3588 | || GET_CODE (op) == CONST_VECTOR); | |
3589 | ||
5df189be | 3590 | if (GET_CODE (op) == CONST_VECTOR |
3591 | && !const_vector_immediate_p (op)) | |
3592 | return 0; | |
3593 | ||
644459d0 | 3594 | if (GET_MODE (op) != VOIDmode) |
3595 | mode = GET_MODE (op); | |
3596 | ||
3597 | constant_to_array (mode, op, arr); | |
3598 | ||
3599 | /* Check that bytes are repeated. */ | |
3600 | for (i = 4; i < 16; i += 4) | |
3601 | for (j = 0; j < 4; j++) | |
3602 | if (arr[j] != arr[i + j]) | |
3603 | return 0; | |
3604 | ||
3605 | val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; | |
3606 | val = trunc_int_for_mode (val, SImode); | |
3607 | ||
3608 | return val >= 0 && val <= 0xffff; | |
3609 | } | |
3610 | ||
3611 | int | |
3612 | arith_immediate_p (rtx op, enum machine_mode mode, | |
3613 | HOST_WIDE_INT low, HOST_WIDE_INT high) | |
3614 | { | |
3615 | HOST_WIDE_INT val; | |
3616 | unsigned char arr[16]; | |
3617 | int bytes, i, j; | |
3618 | ||
3619 | gcc_assert (GET_CODE (op) == CONST_INT || GET_CODE (op) == CONST_DOUBLE | |
3620 | || GET_CODE (op) == CONST_VECTOR); | |
3621 | ||
5df189be | 3622 | if (GET_CODE (op) == CONST_VECTOR |
3623 | && !const_vector_immediate_p (op)) | |
3624 | return 0; | |
3625 | ||
644459d0 | 3626 | if (GET_MODE (op) != VOIDmode) |
3627 | mode = GET_MODE (op); | |
3628 | ||
3629 | constant_to_array (mode, op, arr); | |
3630 | ||
3631 | if (VECTOR_MODE_P (mode)) | |
3632 | mode = GET_MODE_INNER (mode); | |
3633 | ||
3634 | bytes = GET_MODE_SIZE (mode); | |
3635 | mode = mode_for_size (GET_MODE_BITSIZE (mode), MODE_INT, 0); | |
3636 | ||
3637 | /* Check that bytes are repeated. */ | |
3638 | for (i = bytes; i < 16; i += bytes) | |
3639 | for (j = 0; j < bytes; j++) | |
3640 | if (arr[j] != arr[i + j]) | |
3641 | return 0; | |
3642 | ||
3643 | val = arr[0]; | |
3644 | for (j = 1; j < bytes; j++) | |
3645 | val = (val << 8) | arr[j]; | |
3646 | ||
3647 | val = trunc_int_for_mode (val, mode); | |
3648 | ||
3649 | return val >= low && val <= high; | |
3650 | } | |
3651 | ||
56c7bfc2 | 3652 | /* TRUE when op is an immediate and an exact power of 2, and given that |
3653 | OP is 2^scale, scale >= LOW && scale <= HIGH. When OP is a vector, | |
3654 | all entries must be the same. */ | |
3655 | bool | |
3656 | exp2_immediate_p (rtx op, enum machine_mode mode, int low, int high) | |
3657 | { | |
3658 | enum machine_mode int_mode; | |
3659 | HOST_WIDE_INT val; | |
3660 | unsigned char arr[16]; | |
3661 | int bytes, i, j; | |
3662 | ||
3663 | gcc_assert (GET_CODE (op) == CONST_INT || GET_CODE (op) == CONST_DOUBLE | |
3664 | || GET_CODE (op) == CONST_VECTOR); | |
3665 | ||
3666 | if (GET_CODE (op) == CONST_VECTOR | |
3667 | && !const_vector_immediate_p (op)) | |
3668 | return 0; | |
3669 | ||
3670 | if (GET_MODE (op) != VOIDmode) | |
3671 | mode = GET_MODE (op); | |
3672 | ||
3673 | constant_to_array (mode, op, arr); | |
3674 | ||
3675 | if (VECTOR_MODE_P (mode)) | |
3676 | mode = GET_MODE_INNER (mode); | |
3677 | ||
3678 | bytes = GET_MODE_SIZE (mode); | |
3679 | int_mode = mode_for_size (GET_MODE_BITSIZE (mode), MODE_INT, 0); | |
3680 | ||
3681 | /* Check that bytes are repeated. */ | |
3682 | for (i = bytes; i < 16; i += bytes) | |
3683 | for (j = 0; j < bytes; j++) | |
3684 | if (arr[j] != arr[i + j]) | |
3685 | return 0; | |
3686 | ||
3687 | val = arr[0]; | |
3688 | for (j = 1; j < bytes; j++) | |
3689 | val = (val << 8) | arr[j]; | |
3690 | ||
3691 | val = trunc_int_for_mode (val, int_mode); | |
3692 | ||
3693 | /* Currently, we only handle SFmode */ | |
3694 | gcc_assert (mode == SFmode); | |
3695 | if (mode == SFmode) | |
3696 | { | |
3697 | int exp = (val >> 23) - 127; | |
3698 | return val > 0 && (val & 0x007fffff) == 0 | |
3699 | && exp >= low && exp <= high; | |
3700 | } | |
3701 | return FALSE; | |
3702 | } | |
3703 | ||
6cf5579e | 3704 | /* Return true if X is a SYMBOL_REF to an __ea qualified variable. */ |
3705 | ||
3706 | static int | |
3707 | ea_symbol_ref (rtx *px, void *data ATTRIBUTE_UNUSED) | |
3708 | { | |
3709 | rtx x = *px; | |
3710 | tree decl; | |
3711 | ||
3712 | if (GET_CODE (x) == CONST && GET_CODE (XEXP (x, 0)) == PLUS) | |
3713 | { | |
3714 | rtx plus = XEXP (x, 0); | |
3715 | rtx op0 = XEXP (plus, 0); | |
3716 | rtx op1 = XEXP (plus, 1); | |
3717 | if (GET_CODE (op1) == CONST_INT) | |
3718 | x = op0; | |
3719 | } | |
3720 | ||
3721 | return (GET_CODE (x) == SYMBOL_REF | |
3722 | && (decl = SYMBOL_REF_DECL (x)) != 0 | |
3723 | && TREE_CODE (decl) == VAR_DECL | |
3724 | && TYPE_ADDR_SPACE (TREE_TYPE (decl))); | |
3725 | } | |
3726 | ||
644459d0 | 3727 | /* We accept: |
5b865faf | 3728 | - any 32-bit constant (SImode, SFmode) |
644459d0 | 3729 | - any constant that can be generated with fsmbi (any mode) |
5b865faf | 3730 | - a 64-bit constant where the high and low bits are identical |
644459d0 | 3731 | (DImode, DFmode) |
5b865faf | 3732 | - a 128-bit constant where the four 32-bit words match. */ |
ca316360 | 3733 | bool |
3734 | spu_legitimate_constant_p (enum machine_mode mode, rtx x) | |
644459d0 | 3735 | { |
5df189be | 3736 | if (GET_CODE (x) == HIGH) |
3737 | x = XEXP (x, 0); | |
6cf5579e | 3738 | |
3739 | /* Reject any __ea qualified reference. These can't appear in | |
3740 | instructions but must be forced to the constant pool. */ | |
3741 | if (for_each_rtx (&x, ea_symbol_ref, 0)) | |
3742 | return 0; | |
3743 | ||
644459d0 | 3744 | /* V4SI with all identical symbols is valid. */ |
5df189be | 3745 | if (!flag_pic |
ca316360 | 3746 | && mode == V4SImode |
644459d0 | 3747 | && (GET_CODE (CONST_VECTOR_ELT (x, 0)) == SYMBOL_REF |
3748 | || GET_CODE (CONST_VECTOR_ELT (x, 0)) == LABEL_REF | |
5df189be | 3749 | || GET_CODE (CONST_VECTOR_ELT (x, 0)) == CONST)) |
644459d0 | 3750 | return CONST_VECTOR_ELT (x, 0) == CONST_VECTOR_ELT (x, 1) |
3751 | && CONST_VECTOR_ELT (x, 1) == CONST_VECTOR_ELT (x, 2) | |
3752 | && CONST_VECTOR_ELT (x, 2) == CONST_VECTOR_ELT (x, 3); | |
3753 | ||
5df189be | 3754 | if (GET_CODE (x) == CONST_VECTOR |
3755 | && !const_vector_immediate_p (x)) | |
3756 | return 0; | |
644459d0 | 3757 | return 1; |
3758 | } | |
3759 | ||
3760 | /* Valid address are: | |
3761 | - symbol_ref, label_ref, const | |
3762 | - reg | |
9d98604b | 3763 | - reg + const_int, where const_int is 16 byte aligned |
644459d0 | 3764 | - reg + reg, alignment doesn't matter |
3765 | The alignment matters in the reg+const case because lqd and stqd | |
9d98604b | 3766 | ignore the 4 least significant bits of the const. We only care about |
3767 | 16 byte modes because the expand phase will change all smaller MEM | |
3768 | references to TImode. */ | |
3769 | static bool | |
3770 | spu_legitimate_address_p (enum machine_mode mode, | |
fd50b071 | 3771 | rtx x, bool reg_ok_strict) |
644459d0 | 3772 | { |
9d98604b | 3773 | int aligned = GET_MODE_SIZE (mode) >= 16; |
3774 | if (aligned | |
3775 | && GET_CODE (x) == AND | |
644459d0 | 3776 | && GET_CODE (XEXP (x, 1)) == CONST_INT |
9d98604b | 3777 | && INTVAL (XEXP (x, 1)) == (HOST_WIDE_INT) - 16) |
644459d0 | 3778 | x = XEXP (x, 0); |
3779 | switch (GET_CODE (x)) | |
3780 | { | |
644459d0 | 3781 | case LABEL_REF: |
6cf5579e | 3782 | return !TARGET_LARGE_MEM; |
3783 | ||
9d98604b | 3784 | case SYMBOL_REF: |
644459d0 | 3785 | case CONST: |
6cf5579e | 3786 | /* Keep __ea references until reload so that spu_expand_mov can see them |
3787 | in MEMs. */ | |
3788 | if (ea_symbol_ref (&x, 0)) | |
3789 | return !reload_in_progress && !reload_completed; | |
9d98604b | 3790 | return !TARGET_LARGE_MEM; |
644459d0 | 3791 | |
3792 | case CONST_INT: | |
3793 | return INTVAL (x) >= 0 && INTVAL (x) <= 0x3ffff; | |
3794 | ||
3795 | case SUBREG: | |
3796 | x = XEXP (x, 0); | |
9d98604b | 3797 | if (REG_P (x)) |
3798 | return 0; | |
644459d0 | 3799 | |
3800 | case REG: | |
3801 | return INT_REG_OK_FOR_BASE_P (x, reg_ok_strict); | |
3802 | ||
3803 | case PLUS: | |
3804 | case LO_SUM: | |
3805 | { | |
3806 | rtx op0 = XEXP (x, 0); | |
3807 | rtx op1 = XEXP (x, 1); | |
3808 | if (GET_CODE (op0) == SUBREG) | |
3809 | op0 = XEXP (op0, 0); | |
3810 | if (GET_CODE (op1) == SUBREG) | |
3811 | op1 = XEXP (op1, 0); | |
644459d0 | 3812 | if (GET_CODE (op0) == REG |
3813 | && INT_REG_OK_FOR_BASE_P (op0, reg_ok_strict) | |
3814 | && GET_CODE (op1) == CONST_INT | |
3815 | && INTVAL (op1) >= -0x2000 | |
3816 | && INTVAL (op1) <= 0x1fff | |
9d98604b | 3817 | && (!aligned || (INTVAL (op1) & 15) == 0)) |
3818 | return TRUE; | |
644459d0 | 3819 | if (GET_CODE (op0) == REG |
3820 | && INT_REG_OK_FOR_BASE_P (op0, reg_ok_strict) | |
3821 | && GET_CODE (op1) == REG | |
3822 | && INT_REG_OK_FOR_INDEX_P (op1, reg_ok_strict)) | |
9d98604b | 3823 | return TRUE; |
644459d0 | 3824 | } |
3825 | break; | |
3826 | ||
3827 | default: | |
3828 | break; | |
3829 | } | |
9d98604b | 3830 | return FALSE; |
644459d0 | 3831 | } |
3832 | ||
6cf5579e | 3833 | /* Like spu_legitimate_address_p, except with named addresses. */ |
3834 | static bool | |
3835 | spu_addr_space_legitimate_address_p (enum machine_mode mode, rtx x, | |
3836 | bool reg_ok_strict, addr_space_t as) | |
3837 | { | |
3838 | if (as == ADDR_SPACE_EA) | |
3839 | return (REG_P (x) && (GET_MODE (x) == EAmode)); | |
3840 | ||
3841 | else if (as != ADDR_SPACE_GENERIC) | |
3842 | gcc_unreachable (); | |
3843 | ||
3844 | return spu_legitimate_address_p (mode, x, reg_ok_strict); | |
3845 | } | |
3846 | ||
644459d0 | 3847 | /* When the address is reg + const_int, force the const_int into a |
fa7637bd | 3848 | register. */ |
644459d0 | 3849 | rtx |
3850 | spu_legitimize_address (rtx x, rtx oldx ATTRIBUTE_UNUSED, | |
41e3a0c7 | 3851 | enum machine_mode mode ATTRIBUTE_UNUSED) |
644459d0 | 3852 | { |
3853 | rtx op0, op1; | |
3854 | /* Make sure both operands are registers. */ | |
3855 | if (GET_CODE (x) == PLUS) | |
3856 | { | |
3857 | op0 = XEXP (x, 0); | |
3858 | op1 = XEXP (x, 1); | |
3859 | if (ALIGNED_SYMBOL_REF_P (op0)) | |
3860 | { | |
3861 | op0 = force_reg (Pmode, op0); | |
3862 | mark_reg_pointer (op0, 128); | |
3863 | } | |
3864 | else if (GET_CODE (op0) != REG) | |
3865 | op0 = force_reg (Pmode, op0); | |
3866 | if (ALIGNED_SYMBOL_REF_P (op1)) | |
3867 | { | |
3868 | op1 = force_reg (Pmode, op1); | |
3869 | mark_reg_pointer (op1, 128); | |
3870 | } | |
3871 | else if (GET_CODE (op1) != REG) | |
3872 | op1 = force_reg (Pmode, op1); | |
3873 | x = gen_rtx_PLUS (Pmode, op0, op1); | |
644459d0 | 3874 | } |
41e3a0c7 | 3875 | return x; |
644459d0 | 3876 | } |
3877 | ||
6cf5579e | 3878 | /* Like spu_legitimate_address, except with named address support. */ |
3879 | static rtx | |
3880 | spu_addr_space_legitimize_address (rtx x, rtx oldx, enum machine_mode mode, | |
3881 | addr_space_t as) | |
3882 | { | |
3883 | if (as != ADDR_SPACE_GENERIC) | |
3884 | return x; | |
3885 | ||
3886 | return spu_legitimize_address (x, oldx, mode); | |
3887 | } | |
3888 | ||
644459d0 | 3889 | /* Handle an attribute requiring a FUNCTION_DECL; arguments as in |
3890 | struct attribute_spec.handler. */ | |
3891 | static tree | |
3892 | spu_handle_fndecl_attribute (tree * node, | |
3893 | tree name, | |
3894 | tree args ATTRIBUTE_UNUSED, | |
3895 | int flags ATTRIBUTE_UNUSED, bool * no_add_attrs) | |
3896 | { | |
3897 | if (TREE_CODE (*node) != FUNCTION_DECL) | |
3898 | { | |
67a779df | 3899 | warning (0, "%qE attribute only applies to functions", |
3900 | name); | |
644459d0 | 3901 | *no_add_attrs = true; |
3902 | } | |
3903 | ||
3904 | return NULL_TREE; | |
3905 | } | |
3906 | ||
3907 | /* Handle the "vector" attribute. */ | |
3908 | static tree | |
3909 | spu_handle_vector_attribute (tree * node, tree name, | |
3910 | tree args ATTRIBUTE_UNUSED, | |
3911 | int flags ATTRIBUTE_UNUSED, bool * no_add_attrs) | |
3912 | { | |
3913 | tree type = *node, result = NULL_TREE; | |
3914 | enum machine_mode mode; | |
3915 | int unsigned_p; | |
3916 | ||
3917 | while (POINTER_TYPE_P (type) | |
3918 | || TREE_CODE (type) == FUNCTION_TYPE | |
3919 | || TREE_CODE (type) == METHOD_TYPE || TREE_CODE (type) == ARRAY_TYPE) | |
3920 | type = TREE_TYPE (type); | |
3921 | ||
3922 | mode = TYPE_MODE (type); | |
3923 | ||
3924 | unsigned_p = TYPE_UNSIGNED (type); | |
3925 | switch (mode) | |
3926 | { | |
3927 | case DImode: | |
3928 | result = (unsigned_p ? unsigned_V2DI_type_node : V2DI_type_node); | |
3929 | break; | |
3930 | case SImode: | |
3931 | result = (unsigned_p ? unsigned_V4SI_type_node : V4SI_type_node); | |
3932 | break; | |
3933 | case HImode: | |
3934 | result = (unsigned_p ? unsigned_V8HI_type_node : V8HI_type_node); | |
3935 | break; | |
3936 | case QImode: | |
3937 | result = (unsigned_p ? unsigned_V16QI_type_node : V16QI_type_node); | |
3938 | break; | |
3939 | case SFmode: | |
3940 | result = V4SF_type_node; | |
3941 | break; | |
3942 | case DFmode: | |
3943 | result = V2DF_type_node; | |
3944 | break; | |
3945 | default: | |
3946 | break; | |
3947 | } | |
3948 | ||
3949 | /* Propagate qualifiers attached to the element type | |
3950 | onto the vector type. */ | |
3951 | if (result && result != type && TYPE_QUALS (type)) | |
3952 | result = build_qualified_type (result, TYPE_QUALS (type)); | |
3953 | ||
3954 | *no_add_attrs = true; /* No need to hang on to the attribute. */ | |
3955 | ||
3956 | if (!result) | |
67a779df | 3957 | warning (0, "%qE attribute ignored", name); |
644459d0 | 3958 | else |
d991e6e8 | 3959 | *node = lang_hooks.types.reconstruct_complex_type (*node, result); |
644459d0 | 3960 | |
3961 | return NULL_TREE; | |
3962 | } | |
3963 | ||
f2b32076 | 3964 | /* Return nonzero if FUNC is a naked function. */ |
644459d0 | 3965 | static int |
3966 | spu_naked_function_p (tree func) | |
3967 | { | |
3968 | tree a; | |
3969 | ||
3970 | if (TREE_CODE (func) != FUNCTION_DECL) | |
3971 | abort (); | |
3972 | ||
3973 | a = lookup_attribute ("naked", DECL_ATTRIBUTES (func)); | |
3974 | return a != NULL_TREE; | |
3975 | } | |
3976 | ||
3977 | int | |
3978 | spu_initial_elimination_offset (int from, int to) | |
3979 | { | |
3980 | int saved_regs_size = spu_saved_regs_size (); | |
3981 | int sp_offset = 0; | |
abe32cce | 3982 | if (!current_function_is_leaf || crtl->outgoing_args_size |
644459d0 | 3983 | || get_frame_size () || saved_regs_size) |
3984 | sp_offset = STACK_POINTER_OFFSET; | |
3985 | if (from == FRAME_POINTER_REGNUM && to == STACK_POINTER_REGNUM) | |
a8e019fa | 3986 | return get_frame_size () + crtl->outgoing_args_size + sp_offset; |
644459d0 | 3987 | else if (from == FRAME_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM) |
a8e019fa | 3988 | return get_frame_size (); |
644459d0 | 3989 | else if (from == ARG_POINTER_REGNUM && to == STACK_POINTER_REGNUM) |
abe32cce | 3990 | return sp_offset + crtl->outgoing_args_size |
644459d0 | 3991 | + get_frame_size () + saved_regs_size + STACK_POINTER_OFFSET; |
3992 | else if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM) | |
3993 | return get_frame_size () + saved_regs_size + sp_offset; | |
a8e019fa | 3994 | else |
3995 | gcc_unreachable (); | |
644459d0 | 3996 | } |
3997 | ||
3998 | rtx | |
fb80456a | 3999 | spu_function_value (const_tree type, const_tree func ATTRIBUTE_UNUSED) |
644459d0 | 4000 | { |
4001 | enum machine_mode mode = TYPE_MODE (type); | |
4002 | int byte_size = ((mode == BLKmode) | |
4003 | ? int_size_in_bytes (type) : GET_MODE_SIZE (mode)); | |
4004 | ||
4005 | /* Make sure small structs are left justified in a register. */ | |
4006 | if ((mode == BLKmode || (type && AGGREGATE_TYPE_P (type))) | |
4007 | && byte_size <= UNITS_PER_WORD * MAX_REGISTER_RETURN && byte_size > 0) | |
4008 | { | |
4009 | enum machine_mode smode; | |
4010 | rtvec v; | |
4011 | int i; | |
4012 | int nregs = (byte_size + UNITS_PER_WORD - 1) / UNITS_PER_WORD; | |
4013 | int n = byte_size / UNITS_PER_WORD; | |
4014 | v = rtvec_alloc (nregs); | |
4015 | for (i = 0; i < n; i++) | |
4016 | { | |
4017 | RTVEC_ELT (v, i) = gen_rtx_EXPR_LIST (VOIDmode, | |
4018 | gen_rtx_REG (TImode, | |
4019 | FIRST_RETURN_REGNUM | |
4020 | + i), | |
4021 | GEN_INT (UNITS_PER_WORD * i)); | |
4022 | byte_size -= UNITS_PER_WORD; | |
4023 | } | |
4024 | ||
4025 | if (n < nregs) | |
4026 | { | |
4027 | if (byte_size < 4) | |
4028 | byte_size = 4; | |
4029 | smode = | |
4030 | smallest_mode_for_size (byte_size * BITS_PER_UNIT, MODE_INT); | |
4031 | RTVEC_ELT (v, n) = | |
4032 | gen_rtx_EXPR_LIST (VOIDmode, | |
4033 | gen_rtx_REG (smode, FIRST_RETURN_REGNUM + n), | |
4034 | GEN_INT (UNITS_PER_WORD * n)); | |
4035 | } | |
4036 | return gen_rtx_PARALLEL (mode, v); | |
4037 | } | |
4038 | return gen_rtx_REG (mode, FIRST_RETURN_REGNUM); | |
4039 | } | |
4040 | ||
ee9034d4 | 4041 | static rtx |
4042 | spu_function_arg (CUMULATIVE_ARGS *cum, | |
644459d0 | 4043 | enum machine_mode mode, |
ee9034d4 | 4044 | const_tree type, bool named ATTRIBUTE_UNUSED) |
644459d0 | 4045 | { |
4046 | int byte_size; | |
4047 | ||
a08c5dd0 | 4048 | if (*cum >= MAX_REGISTER_ARGS) |
644459d0 | 4049 | return 0; |
4050 | ||
4051 | byte_size = ((mode == BLKmode) | |
4052 | ? int_size_in_bytes (type) : GET_MODE_SIZE (mode)); | |
4053 | ||
4054 | /* The ABI does not allow parameters to be passed partially in | |
4055 | reg and partially in stack. */ | |
a08c5dd0 | 4056 | if ((*cum + (byte_size + 15) / 16) > MAX_REGISTER_ARGS) |
644459d0 | 4057 | return 0; |
4058 | ||
4059 | /* Make sure small structs are left justified in a register. */ | |
4060 | if ((mode == BLKmode || (type && AGGREGATE_TYPE_P (type))) | |
4061 | && byte_size < UNITS_PER_WORD && byte_size > 0) | |
4062 | { | |
4063 | enum machine_mode smode; | |
4064 | rtx gr_reg; | |
4065 | if (byte_size < 4) | |
4066 | byte_size = 4; | |
4067 | smode = smallest_mode_for_size (byte_size * BITS_PER_UNIT, MODE_INT); | |
4068 | gr_reg = gen_rtx_EXPR_LIST (VOIDmode, | |
a08c5dd0 | 4069 | gen_rtx_REG (smode, FIRST_ARG_REGNUM + *cum), |
644459d0 | 4070 | const0_rtx); |
4071 | return gen_rtx_PARALLEL (mode, gen_rtvec (1, gr_reg)); | |
4072 | } | |
4073 | else | |
a08c5dd0 | 4074 | return gen_rtx_REG (mode, FIRST_ARG_REGNUM + *cum); |
644459d0 | 4075 | } |
4076 | ||
ee9034d4 | 4077 | static void |
4078 | spu_function_arg_advance (CUMULATIVE_ARGS * cum, enum machine_mode mode, | |
4079 | const_tree type, bool named ATTRIBUTE_UNUSED) | |
4080 | { | |
4081 | *cum += (type && TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST | |
4082 | ? 1 | |
4083 | : mode == BLKmode | |
4084 | ? ((int_size_in_bytes (type) + 15) / 16) | |
4085 | : mode == VOIDmode | |
4086 | ? 1 | |
4087 | : HARD_REGNO_NREGS (cum, mode)); | |
4088 | } | |
4089 | ||
644459d0 | 4090 | /* Variable sized types are passed by reference. */ |
4091 | static bool | |
4092 | spu_pass_by_reference (CUMULATIVE_ARGS * cum ATTRIBUTE_UNUSED, | |
4093 | enum machine_mode mode ATTRIBUTE_UNUSED, | |
fb80456a | 4094 | const_tree type, bool named ATTRIBUTE_UNUSED) |
644459d0 | 4095 | { |
4096 | return type && TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST; | |
4097 | } | |
4098 | \f | |
4099 | ||
4100 | /* Var args. */ | |
4101 | ||
4102 | /* Create and return the va_list datatype. | |
4103 | ||
4104 | On SPU, va_list is an array type equivalent to | |
4105 | ||
4106 | typedef struct __va_list_tag | |
4107 | { | |
4108 | void *__args __attribute__((__aligned(16))); | |
4109 | void *__skip __attribute__((__aligned(16))); | |
4110 | ||
4111 | } va_list[1]; | |
4112 | ||
fa7637bd | 4113 | where __args points to the arg that will be returned by the next |
644459d0 | 4114 | va_arg(), and __skip points to the previous stack frame such that |
4115 | when __args == __skip we should advance __args by 32 bytes. */ | |
4116 | static tree | |
4117 | spu_build_builtin_va_list (void) | |
4118 | { | |
4119 | tree f_args, f_skip, record, type_decl; | |
4120 | bool owp; | |
4121 | ||
4122 | record = (*lang_hooks.types.make_type) (RECORD_TYPE); | |
4123 | ||
4124 | type_decl = | |
54e46243 | 4125 | build_decl (BUILTINS_LOCATION, |
4126 | TYPE_DECL, get_identifier ("__va_list_tag"), record); | |
644459d0 | 4127 | |
54e46243 | 4128 | f_args = build_decl (BUILTINS_LOCATION, |
4129 | FIELD_DECL, get_identifier ("__args"), ptr_type_node); | |
4130 | f_skip = build_decl (BUILTINS_LOCATION, | |
4131 | FIELD_DECL, get_identifier ("__skip"), ptr_type_node); | |
644459d0 | 4132 | |
4133 | DECL_FIELD_CONTEXT (f_args) = record; | |
4134 | DECL_ALIGN (f_args) = 128; | |
4135 | DECL_USER_ALIGN (f_args) = 1; | |
4136 | ||
4137 | DECL_FIELD_CONTEXT (f_skip) = record; | |
4138 | DECL_ALIGN (f_skip) = 128; | |
4139 | DECL_USER_ALIGN (f_skip) = 1; | |
4140 | ||
bc907808 | 4141 | TYPE_STUB_DECL (record) = type_decl; |
644459d0 | 4142 | TYPE_NAME (record) = type_decl; |
4143 | TYPE_FIELDS (record) = f_args; | |
1767a056 | 4144 | DECL_CHAIN (f_args) = f_skip; |
644459d0 | 4145 | |
4146 | /* We know this is being padded and we want it too. It is an internal | |
4147 | type so hide the warnings from the user. */ | |
4148 | owp = warn_padded; | |
4149 | warn_padded = false; | |
4150 | ||
4151 | layout_type (record); | |
4152 | ||
4153 | warn_padded = owp; | |
4154 | ||
4155 | /* The correct type is an array type of one element. */ | |
4156 | return build_array_type (record, build_index_type (size_zero_node)); | |
4157 | } | |
4158 | ||
4159 | /* Implement va_start by filling the va_list structure VALIST. | |
4160 | NEXTARG points to the first anonymous stack argument. | |
4161 | ||
4162 | The following global variables are used to initialize | |
4163 | the va_list structure: | |
4164 | ||
abe32cce | 4165 | crtl->args.info; |
644459d0 | 4166 | the CUMULATIVE_ARGS for this function |
4167 | ||
abe32cce | 4168 | crtl->args.arg_offset_rtx: |
644459d0 | 4169 | holds the offset of the first anonymous stack argument |
4170 | (relative to the virtual arg pointer). */ | |
4171 | ||
8a58ed0a | 4172 | static void |
644459d0 | 4173 | spu_va_start (tree valist, rtx nextarg) |
4174 | { | |
4175 | tree f_args, f_skip; | |
4176 | tree args, skip, t; | |
4177 | ||
4178 | f_args = TYPE_FIELDS (TREE_TYPE (va_list_type_node)); | |
1767a056 | 4179 | f_skip = DECL_CHAIN (f_args); |
644459d0 | 4180 | |
170efcd4 | 4181 | valist = build_simple_mem_ref (valist); |
644459d0 | 4182 | args = |
4183 | build3 (COMPONENT_REF, TREE_TYPE (f_args), valist, f_args, NULL_TREE); | |
4184 | skip = | |
4185 | build3 (COMPONENT_REF, TREE_TYPE (f_skip), valist, f_skip, NULL_TREE); | |
4186 | ||
4187 | /* Find the __args area. */ | |
4188 | t = make_tree (TREE_TYPE (args), nextarg); | |
abe32cce | 4189 | if (crtl->args.pretend_args_size > 0) |
0de36bdb | 4190 | t = build2 (POINTER_PLUS_EXPR, TREE_TYPE (args), t, |
4191 | size_int (-STACK_POINTER_OFFSET)); | |
75a70cf9 | 4192 | t = build2 (MODIFY_EXPR, TREE_TYPE (args), args, t); |
644459d0 | 4193 | TREE_SIDE_EFFECTS (t) = 1; |
4194 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
4195 | ||
4196 | /* Find the __skip area. */ | |
4197 | t = make_tree (TREE_TYPE (skip), virtual_incoming_args_rtx); | |
0de36bdb | 4198 | t = build2 (POINTER_PLUS_EXPR, TREE_TYPE (skip), t, |
abe32cce | 4199 | size_int (crtl->args.pretend_args_size |
0de36bdb | 4200 | - STACK_POINTER_OFFSET)); |
75a70cf9 | 4201 | t = build2 (MODIFY_EXPR, TREE_TYPE (skip), skip, t); |
644459d0 | 4202 | TREE_SIDE_EFFECTS (t) = 1; |
4203 | expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); | |
4204 | } | |
4205 | ||
4206 | /* Gimplify va_arg by updating the va_list structure | |
4207 | VALIST as required to retrieve an argument of type | |
4208 | TYPE, and returning that argument. | |
4209 | ||
4210 | ret = va_arg(VALIST, TYPE); | |
4211 | ||
4212 | generates code equivalent to: | |
4213 | ||
4214 | paddedsize = (sizeof(TYPE) + 15) & -16; | |
4215 | if (VALIST.__args + paddedsize > VALIST.__skip | |
4216 | && VALIST.__args <= VALIST.__skip) | |
4217 | addr = VALIST.__skip + 32; | |
4218 | else | |
4219 | addr = VALIST.__args; | |
4220 | VALIST.__args = addr + paddedsize; | |
4221 | ret = *(TYPE *)addr; | |
4222 | */ | |
4223 | static tree | |
75a70cf9 | 4224 | spu_gimplify_va_arg_expr (tree valist, tree type, gimple_seq * pre_p, |
4225 | gimple_seq * post_p ATTRIBUTE_UNUSED) | |
644459d0 | 4226 | { |
4227 | tree f_args, f_skip; | |
4228 | tree args, skip; | |
4229 | HOST_WIDE_INT size, rsize; | |
4230 | tree paddedsize, addr, tmp; | |
4231 | bool pass_by_reference_p; | |
4232 | ||
4233 | f_args = TYPE_FIELDS (TREE_TYPE (va_list_type_node)); | |
1767a056 | 4234 | f_skip = DECL_CHAIN (f_args); |
644459d0 | 4235 | |
182cf5a9 | 4236 | valist = build_simple_mem_ref (valist); |
644459d0 | 4237 | args = |
4238 | build3 (COMPONENT_REF, TREE_TYPE (f_args), valist, f_args, NULL_TREE); | |
4239 | skip = | |
4240 | build3 (COMPONENT_REF, TREE_TYPE (f_skip), valist, f_skip, NULL_TREE); | |
4241 | ||
4242 | addr = create_tmp_var (ptr_type_node, "va_arg"); | |
644459d0 | 4243 | |
4244 | /* if an object is dynamically sized, a pointer to it is passed | |
4245 | instead of the object itself. */ | |
27a82950 | 4246 | pass_by_reference_p = pass_by_reference (NULL, TYPE_MODE (type), type, |
4247 | false); | |
644459d0 | 4248 | if (pass_by_reference_p) |
4249 | type = build_pointer_type (type); | |
4250 | size = int_size_in_bytes (type); | |
4251 | rsize = ((size + UNITS_PER_WORD - 1) / UNITS_PER_WORD) * UNITS_PER_WORD; | |
4252 | ||
4253 | /* build conditional expression to calculate addr. The expression | |
4254 | will be gimplified later. */ | |
0de36bdb | 4255 | paddedsize = size_int (rsize); |
75a70cf9 | 4256 | tmp = build2 (POINTER_PLUS_EXPR, ptr_type_node, unshare_expr (args), paddedsize); |
644459d0 | 4257 | tmp = build2 (TRUTH_AND_EXPR, boolean_type_node, |
75a70cf9 | 4258 | build2 (GT_EXPR, boolean_type_node, tmp, unshare_expr (skip)), |
4259 | build2 (LE_EXPR, boolean_type_node, unshare_expr (args), | |
4260 | unshare_expr (skip))); | |
644459d0 | 4261 | |
4262 | tmp = build3 (COND_EXPR, ptr_type_node, tmp, | |
75a70cf9 | 4263 | build2 (POINTER_PLUS_EXPR, ptr_type_node, unshare_expr (skip), |
4264 | size_int (32)), unshare_expr (args)); | |
644459d0 | 4265 | |
75a70cf9 | 4266 | gimplify_assign (addr, tmp, pre_p); |
644459d0 | 4267 | |
4268 | /* update VALIST.__args */ | |
0de36bdb | 4269 | tmp = build2 (POINTER_PLUS_EXPR, ptr_type_node, addr, paddedsize); |
75a70cf9 | 4270 | gimplify_assign (unshare_expr (args), tmp, pre_p); |
644459d0 | 4271 | |
8115f0af | 4272 | addr = fold_convert (build_pointer_type_for_mode (type, ptr_mode, true), |
4273 | addr); | |
644459d0 | 4274 | |
4275 | if (pass_by_reference_p) | |
4276 | addr = build_va_arg_indirect_ref (addr); | |
4277 | ||
4278 | return build_va_arg_indirect_ref (addr); | |
4279 | } | |
4280 | ||
4281 | /* Save parameter registers starting with the register that corresponds | |
4282 | to the first unnamed parameters. If the first unnamed parameter is | |
4283 | in the stack then save no registers. Set pretend_args_size to the | |
4284 | amount of space needed to save the registers. */ | |
4285 | void | |
4286 | spu_setup_incoming_varargs (CUMULATIVE_ARGS * cum, enum machine_mode mode, | |
4287 | tree type, int *pretend_size, int no_rtl) | |
4288 | { | |
4289 | if (!no_rtl) | |
4290 | { | |
4291 | rtx tmp; | |
4292 | int regno; | |
4293 | int offset; | |
4294 | int ncum = *cum; | |
4295 | ||
4296 | /* cum currently points to the last named argument, we want to | |
4297 | start at the next argument. */ | |
ee9034d4 | 4298 | spu_function_arg_advance (&ncum, mode, type, true); |
644459d0 | 4299 | |
4300 | offset = -STACK_POINTER_OFFSET; | |
4301 | for (regno = ncum; regno < MAX_REGISTER_ARGS; regno++) | |
4302 | { | |
4303 | tmp = gen_frame_mem (V4SImode, | |
4304 | plus_constant (virtual_incoming_args_rtx, | |
4305 | offset)); | |
4306 | emit_move_insn (tmp, | |
4307 | gen_rtx_REG (V4SImode, FIRST_ARG_REGNUM + regno)); | |
4308 | offset += 16; | |
4309 | } | |
4310 | *pretend_size = offset + STACK_POINTER_OFFSET; | |
4311 | } | |
4312 | } | |
4313 | \f | |
b2d7ede1 | 4314 | static void |
644459d0 | 4315 | spu_conditional_register_usage (void) |
4316 | { | |
4317 | if (flag_pic) | |
4318 | { | |
4319 | fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1; | |
4320 | call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1; | |
4321 | } | |
644459d0 | 4322 | } |
4323 | ||
9d98604b | 4324 | /* This is called any time we inspect the alignment of a register for |
4325 | addresses. */ | |
644459d0 | 4326 | static int |
9d98604b | 4327 | reg_aligned_for_addr (rtx x) |
644459d0 | 4328 | { |
9d98604b | 4329 | int regno = |
4330 | REGNO (x) < FIRST_PSEUDO_REGISTER ? ORIGINAL_REGNO (x) : REGNO (x); | |
4331 | return REGNO_POINTER_ALIGN (regno) >= 128; | |
644459d0 | 4332 | } |
4333 | ||
69ced2d6 | 4334 | /* Encode symbol attributes (local vs. global, tls model) of a SYMBOL_REF |
4335 | into its SYMBOL_REF_FLAGS. */ | |
4336 | static void | |
4337 | spu_encode_section_info (tree decl, rtx rtl, int first) | |
4338 | { | |
4339 | default_encode_section_info (decl, rtl, first); | |
4340 | ||
4341 | /* If a variable has a forced alignment to < 16 bytes, mark it with | |
4342 | SYMBOL_FLAG_ALIGN1. */ | |
4343 | if (TREE_CODE (decl) == VAR_DECL | |
4344 | && DECL_USER_ALIGN (decl) && DECL_ALIGN (decl) < 128) | |
4345 | SYMBOL_REF_FLAGS (XEXP (rtl, 0)) |= SYMBOL_FLAG_ALIGN1; | |
4346 | } | |
4347 | ||
644459d0 | 4348 | /* Return TRUE if we are certain the mem refers to a complete object |
4349 | which is both 16-byte aligned and padded to a 16-byte boundary. This | |
4350 | would make it safe to store with a single instruction. | |
4351 | We guarantee the alignment and padding for static objects by aligning | |
4352 | all of them to 16-bytes. (DATA_ALIGNMENT and CONSTANT_ALIGNMENT.) | |
4353 | FIXME: We currently cannot guarantee this for objects on the stack | |
4354 | because assign_parm_setup_stack calls assign_stack_local with the | |
4355 | alignment of the parameter mode and in that case the alignment never | |
4356 | gets adjusted by LOCAL_ALIGNMENT. */ | |
4357 | static int | |
4358 | store_with_one_insn_p (rtx mem) | |
4359 | { | |
9d98604b | 4360 | enum machine_mode mode = GET_MODE (mem); |
644459d0 | 4361 | rtx addr = XEXP (mem, 0); |
9d98604b | 4362 | if (mode == BLKmode) |
644459d0 | 4363 | return 0; |
9d98604b | 4364 | if (GET_MODE_SIZE (mode) >= 16) |
4365 | return 1; | |
644459d0 | 4366 | /* Only static objects. */ |
4367 | if (GET_CODE (addr) == SYMBOL_REF) | |
4368 | { | |
4369 | /* We use the associated declaration to make sure the access is | |
fa7637bd | 4370 | referring to the whole object. |
851d9296 | 4371 | We check both MEM_EXPR and SYMBOL_REF_DECL. I'm not sure |
644459d0 | 4372 | if it is necessary. Will there be cases where one exists, and |
4373 | the other does not? Will there be cases where both exist, but | |
4374 | have different types? */ | |
4375 | tree decl = MEM_EXPR (mem); | |
4376 | if (decl | |
4377 | && TREE_CODE (decl) == VAR_DECL | |
4378 | && GET_MODE (mem) == TYPE_MODE (TREE_TYPE (decl))) | |
4379 | return 1; | |
4380 | decl = SYMBOL_REF_DECL (addr); | |
4381 | if (decl | |
4382 | && TREE_CODE (decl) == VAR_DECL | |
4383 | && GET_MODE (mem) == TYPE_MODE (TREE_TYPE (decl))) | |
4384 | return 1; | |
4385 | } | |
4386 | return 0; | |
4387 | } | |
4388 | ||
9d98604b | 4389 | /* Return 1 when the address is not valid for a simple load and store as |
4390 | required by the '_mov*' patterns. We could make this less strict | |
4391 | for loads, but we prefer mem's to look the same so they are more | |
4392 | likely to be merged. */ | |
4393 | static int | |
4394 | address_needs_split (rtx mem) | |
4395 | { | |
4396 | if (GET_MODE_SIZE (GET_MODE (mem)) < 16 | |
4397 | && (GET_MODE_SIZE (GET_MODE (mem)) < 4 | |
4398 | || !(store_with_one_insn_p (mem) | |
4399 | || mem_is_padded_component_ref (mem)))) | |
4400 | return 1; | |
4401 | ||
4402 | return 0; | |
4403 | } | |
4404 | ||
6cf5579e | 4405 | static GTY(()) rtx cache_fetch; /* __cache_fetch function */ |
4406 | static GTY(()) rtx cache_fetch_dirty; /* __cache_fetch_dirty function */ | |
4407 | static alias_set_type ea_alias_set = -1; /* alias set for __ea memory */ | |
4408 | ||
4409 | /* MEM is known to be an __ea qualified memory access. Emit a call to | |
4410 | fetch the ppu memory to local store, and return its address in local | |
4411 | store. */ | |
4412 | ||
4413 | static void | |
4414 | ea_load_store (rtx mem, bool is_store, rtx ea_addr, rtx data_addr) | |
4415 | { | |
4416 | if (is_store) | |
4417 | { | |
4418 | rtx ndirty = GEN_INT (GET_MODE_SIZE (GET_MODE (mem))); | |
4419 | if (!cache_fetch_dirty) | |
4420 | cache_fetch_dirty = init_one_libfunc ("__cache_fetch_dirty"); | |
4421 | emit_library_call_value (cache_fetch_dirty, data_addr, LCT_NORMAL, Pmode, | |
4422 | 2, ea_addr, EAmode, ndirty, SImode); | |
4423 | } | |
4424 | else | |
4425 | { | |
4426 | if (!cache_fetch) | |
4427 | cache_fetch = init_one_libfunc ("__cache_fetch"); | |
4428 | emit_library_call_value (cache_fetch, data_addr, LCT_NORMAL, Pmode, | |
4429 | 1, ea_addr, EAmode); | |
4430 | } | |
4431 | } | |
4432 | ||
4433 | /* Like ea_load_store, but do the cache tag comparison and, for stores, | |
4434 | dirty bit marking, inline. | |
4435 | ||
4436 | The cache control data structure is an array of | |
4437 | ||
4438 | struct __cache_tag_array | |
4439 | { | |
4440 | unsigned int tag_lo[4]; | |
4441 | unsigned int tag_hi[4]; | |
4442 | void *data_pointer[4]; | |
4443 | int reserved[4]; | |
4444 | vector unsigned short dirty_bits[4]; | |
4445 | } */ | |
4446 | ||
4447 | static void | |
4448 | ea_load_store_inline (rtx mem, bool is_store, rtx ea_addr, rtx data_addr) | |
4449 | { | |
4450 | rtx ea_addr_si; | |
4451 | HOST_WIDE_INT v; | |
4452 | rtx tag_size_sym = gen_rtx_SYMBOL_REF (Pmode, "__cache_tag_array_size"); | |
4453 | rtx tag_arr_sym = gen_rtx_SYMBOL_REF (Pmode, "__cache_tag_array"); | |
4454 | rtx index_mask = gen_reg_rtx (SImode); | |
4455 | rtx tag_arr = gen_reg_rtx (Pmode); | |
4456 | rtx splat_mask = gen_reg_rtx (TImode); | |
4457 | rtx splat = gen_reg_rtx (V4SImode); | |
4458 | rtx splat_hi = NULL_RTX; | |
4459 | rtx tag_index = gen_reg_rtx (Pmode); | |
4460 | rtx block_off = gen_reg_rtx (SImode); | |
4461 | rtx tag_addr = gen_reg_rtx (Pmode); | |
4462 | rtx tag = gen_reg_rtx (V4SImode); | |
4463 | rtx cache_tag = gen_reg_rtx (V4SImode); | |
4464 | rtx cache_tag_hi = NULL_RTX; | |
4465 | rtx cache_ptrs = gen_reg_rtx (TImode); | |
4466 | rtx cache_ptrs_si = gen_reg_rtx (SImode); | |
4467 | rtx tag_equal = gen_reg_rtx (V4SImode); | |
4468 | rtx tag_equal_hi = NULL_RTX; | |
4469 | rtx tag_eq_pack = gen_reg_rtx (V4SImode); | |
4470 | rtx tag_eq_pack_si = gen_reg_rtx (SImode); | |
4471 | rtx eq_index = gen_reg_rtx (SImode); | |
4472 | rtx bcomp, hit_label, hit_ref, cont_label, insn; | |
4473 | ||
4474 | if (spu_ea_model != 32) | |
4475 | { | |
4476 | splat_hi = gen_reg_rtx (V4SImode); | |
4477 | cache_tag_hi = gen_reg_rtx (V4SImode); | |
4478 | tag_equal_hi = gen_reg_rtx (V4SImode); | |
4479 | } | |
4480 | ||
4481 | emit_move_insn (index_mask, plus_constant (tag_size_sym, -128)); | |
4482 | emit_move_insn (tag_arr, tag_arr_sym); | |
4483 | v = 0x0001020300010203LL; | |
4484 | emit_move_insn (splat_mask, immed_double_const (v, v, TImode)); | |
4485 | ea_addr_si = ea_addr; | |
4486 | if (spu_ea_model != 32) | |
4487 | ea_addr_si = convert_to_mode (SImode, ea_addr, 1); | |
4488 | ||
4489 | /* tag_index = ea_addr & (tag_array_size - 128) */ | |
4490 | emit_insn (gen_andsi3 (tag_index, ea_addr_si, index_mask)); | |
4491 | ||
4492 | /* splat ea_addr to all 4 slots. */ | |
4493 | emit_insn (gen_shufb (splat, ea_addr_si, ea_addr_si, splat_mask)); | |
4494 | /* Similarly for high 32 bits of ea_addr. */ | |
4495 | if (spu_ea_model != 32) | |
4496 | emit_insn (gen_shufb (splat_hi, ea_addr, ea_addr, splat_mask)); | |
4497 | ||
4498 | /* block_off = ea_addr & 127 */ | |
4499 | emit_insn (gen_andsi3 (block_off, ea_addr_si, spu_const (SImode, 127))); | |
4500 | ||
4501 | /* tag_addr = tag_arr + tag_index */ | |
4502 | emit_insn (gen_addsi3 (tag_addr, tag_arr, tag_index)); | |
4503 | ||
4504 | /* Read cache tags. */ | |
4505 | emit_move_insn (cache_tag, gen_rtx_MEM (V4SImode, tag_addr)); | |
4506 | if (spu_ea_model != 32) | |
4507 | emit_move_insn (cache_tag_hi, gen_rtx_MEM (V4SImode, | |
4508 | plus_constant (tag_addr, 16))); | |
4509 | ||
4510 | /* tag = ea_addr & -128 */ | |
4511 | emit_insn (gen_andv4si3 (tag, splat, spu_const (V4SImode, -128))); | |
4512 | ||
4513 | /* Read all four cache data pointers. */ | |
4514 | emit_move_insn (cache_ptrs, gen_rtx_MEM (TImode, | |
4515 | plus_constant (tag_addr, 32))); | |
4516 | ||
4517 | /* Compare tags. */ | |
4518 | emit_insn (gen_ceq_v4si (tag_equal, tag, cache_tag)); | |
4519 | if (spu_ea_model != 32) | |
4520 | { | |
4521 | emit_insn (gen_ceq_v4si (tag_equal_hi, splat_hi, cache_tag_hi)); | |
4522 | emit_insn (gen_andv4si3 (tag_equal, tag_equal, tag_equal_hi)); | |
4523 | } | |
4524 | ||
4525 | /* At most one of the tags compare equal, so tag_equal has one | |
4526 | 32-bit slot set to all 1's, with the other slots all zero. | |
4527 | gbb picks off low bit from each byte in the 128-bit registers, | |
4528 | so tag_eq_pack is one of 0xf000, 0x0f00, 0x00f0, 0x000f, assuming | |
4529 | we have a hit. */ | |
4530 | emit_insn (gen_spu_gbb (tag_eq_pack, spu_gen_subreg (V16QImode, tag_equal))); | |
4531 | emit_insn (gen_spu_convert (tag_eq_pack_si, tag_eq_pack)); | |
4532 | ||
4533 | /* So counting leading zeros will set eq_index to 16, 20, 24 or 28. */ | |
4534 | emit_insn (gen_clzsi2 (eq_index, tag_eq_pack_si)); | |
4535 | ||
4536 | /* Allowing us to rotate the corresponding cache data pointer to slot0. | |
4537 | (rotating eq_index mod 16 bytes). */ | |
4538 | emit_insn (gen_rotqby_ti (cache_ptrs, cache_ptrs, eq_index)); | |
4539 | emit_insn (gen_spu_convert (cache_ptrs_si, cache_ptrs)); | |
4540 | ||
4541 | /* Add block offset to form final data address. */ | |
4542 | emit_insn (gen_addsi3 (data_addr, cache_ptrs_si, block_off)); | |
4543 | ||
4544 | /* Check that we did hit. */ | |
4545 | hit_label = gen_label_rtx (); | |
4546 | hit_ref = gen_rtx_LABEL_REF (VOIDmode, hit_label); | |
4547 | bcomp = gen_rtx_NE (SImode, tag_eq_pack_si, const0_rtx); | |
4548 | insn = emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx, | |
4549 | gen_rtx_IF_THEN_ELSE (VOIDmode, bcomp, | |
4550 | hit_ref, pc_rtx))); | |
4551 | /* Say that this branch is very likely to happen. */ | |
4552 | v = REG_BR_PROB_BASE - REG_BR_PROB_BASE / 100 - 1; | |
02501f7f | 4553 | add_reg_note (insn, REG_BR_PROB, GEN_INT (v)); |
6cf5579e | 4554 | |
4555 | ea_load_store (mem, is_store, ea_addr, data_addr); | |
4556 | cont_label = gen_label_rtx (); | |
4557 | emit_jump_insn (gen_jump (cont_label)); | |
4558 | emit_barrier (); | |
4559 | ||
4560 | emit_label (hit_label); | |
4561 | ||
4562 | if (is_store) | |
4563 | { | |
4564 | HOST_WIDE_INT v_hi; | |
4565 | rtx dirty_bits = gen_reg_rtx (TImode); | |
4566 | rtx dirty_off = gen_reg_rtx (SImode); | |
4567 | rtx dirty_128 = gen_reg_rtx (TImode); | |
4568 | rtx neg_block_off = gen_reg_rtx (SImode); | |
4569 | ||
4570 | /* Set up mask with one dirty bit per byte of the mem we are | |
4571 | writing, starting from top bit. */ | |
4572 | v_hi = v = -1; | |
4573 | v <<= (128 - GET_MODE_SIZE (GET_MODE (mem))) & 63; | |
4574 | if ((128 - GET_MODE_SIZE (GET_MODE (mem))) >= 64) | |
4575 | { | |
4576 | v_hi = v; | |
4577 | v = 0; | |
4578 | } | |
4579 | emit_move_insn (dirty_bits, immed_double_const (v, v_hi, TImode)); | |
4580 | ||
4581 | /* Form index into cache dirty_bits. eq_index is one of | |
4582 | 0x10, 0x14, 0x18 or 0x1c. Multiplying by 4 gives us | |
4583 | 0x40, 0x50, 0x60 or 0x70 which just happens to be the | |
4584 | offset to each of the four dirty_bits elements. */ | |
4585 | emit_insn (gen_ashlsi3 (dirty_off, eq_index, spu_const (SImode, 2))); | |
4586 | ||
4587 | emit_insn (gen_spu_lqx (dirty_128, tag_addr, dirty_off)); | |
4588 | ||
4589 | /* Rotate bit mask to proper bit. */ | |
4590 | emit_insn (gen_negsi2 (neg_block_off, block_off)); | |
4591 | emit_insn (gen_rotqbybi_ti (dirty_bits, dirty_bits, neg_block_off)); | |
4592 | emit_insn (gen_rotqbi_ti (dirty_bits, dirty_bits, neg_block_off)); | |
4593 | ||
4594 | /* Or in the new dirty bits. */ | |
4595 | emit_insn (gen_iorti3 (dirty_128, dirty_bits, dirty_128)); | |
4596 | ||
4597 | /* Store. */ | |
4598 | emit_insn (gen_spu_stqx (dirty_128, tag_addr, dirty_off)); | |
4599 | } | |
4600 | ||
4601 | emit_label (cont_label); | |
4602 | } | |
4603 | ||
4604 | static rtx | |
4605 | expand_ea_mem (rtx mem, bool is_store) | |
4606 | { | |
4607 | rtx ea_addr; | |
4608 | rtx data_addr = gen_reg_rtx (Pmode); | |
4609 | rtx new_mem; | |
4610 | ||
4611 | ea_addr = force_reg (EAmode, XEXP (mem, 0)); | |
4612 | if (optimize_size || optimize == 0) | |
4613 | ea_load_store (mem, is_store, ea_addr, data_addr); | |
4614 | else | |
4615 | ea_load_store_inline (mem, is_store, ea_addr, data_addr); | |
4616 | ||
4617 | if (ea_alias_set == -1) | |
4618 | ea_alias_set = new_alias_set (); | |
4619 | ||
4620 | /* We generate a new MEM RTX to refer to the copy of the data | |
4621 | in the cache. We do not copy memory attributes (except the | |
4622 | alignment) from the original MEM, as they may no longer apply | |
4623 | to the cache copy. */ | |
4624 | new_mem = gen_rtx_MEM (GET_MODE (mem), data_addr); | |
4625 | set_mem_alias_set (new_mem, ea_alias_set); | |
4626 | set_mem_align (new_mem, MIN (MEM_ALIGN (mem), 128 * 8)); | |
4627 | ||
4628 | return new_mem; | |
4629 | } | |
4630 | ||
644459d0 | 4631 | int |
4632 | spu_expand_mov (rtx * ops, enum machine_mode mode) | |
4633 | { | |
4634 | if (GET_CODE (ops[0]) == SUBREG && !valid_subreg (ops[0])) | |
abe960bb | 4635 | { |
4636 | /* Perform the move in the destination SUBREG's inner mode. */ | |
4637 | ops[0] = SUBREG_REG (ops[0]); | |
4638 | mode = GET_MODE (ops[0]); | |
4639 | ops[1] = gen_lowpart_common (mode, ops[1]); | |
4640 | gcc_assert (ops[1]); | |
4641 | } | |
644459d0 | 4642 | |
4643 | if (GET_CODE (ops[1]) == SUBREG && !valid_subreg (ops[1])) | |
4644 | { | |
4645 | rtx from = SUBREG_REG (ops[1]); | |
8d72495d | 4646 | enum machine_mode imode = int_mode_for_mode (GET_MODE (from)); |
644459d0 | 4647 | |
4648 | gcc_assert (GET_MODE_CLASS (mode) == MODE_INT | |
4649 | && GET_MODE_CLASS (imode) == MODE_INT | |
4650 | && subreg_lowpart_p (ops[1])); | |
4651 | ||
4652 | if (GET_MODE_SIZE (imode) < 4) | |
8d72495d | 4653 | imode = SImode; |
4654 | if (imode != GET_MODE (from)) | |
4655 | from = gen_rtx_SUBREG (imode, from, 0); | |
644459d0 | 4656 | |
4657 | if (GET_MODE_SIZE (mode) < GET_MODE_SIZE (imode)) | |
4658 | { | |
d6bf3b14 | 4659 | enum insn_code icode = convert_optab_handler (trunc_optab, |
4660 | mode, imode); | |
644459d0 | 4661 | emit_insn (GEN_FCN (icode) (ops[0], from)); |
4662 | } | |
4663 | else | |
4664 | emit_insn (gen_extend_insn (ops[0], from, mode, imode, 1)); | |
4665 | return 1; | |
4666 | } | |
4667 | ||
4668 | /* At least one of the operands needs to be a register. */ | |
4669 | if ((reload_in_progress | reload_completed) == 0 | |
4670 | && !register_operand (ops[0], mode) && !register_operand (ops[1], mode)) | |
4671 | { | |
4672 | rtx temp = force_reg (mode, ops[1]); | |
4673 | emit_move_insn (ops[0], temp); | |
4674 | return 1; | |
4675 | } | |
4676 | if (reload_in_progress || reload_completed) | |
4677 | { | |
dea01258 | 4678 | if (CONSTANT_P (ops[1])) |
4679 | return spu_split_immediate (ops); | |
644459d0 | 4680 | return 0; |
4681 | } | |
9d98604b | 4682 | |
4683 | /* Catch the SImode immediates greater than 0x7fffffff, and sign | |
4684 | extend them. */ | |
4685 | if (GET_CODE (ops[1]) == CONST_INT) | |
644459d0 | 4686 | { |
9d98604b | 4687 | HOST_WIDE_INT val = trunc_int_for_mode (INTVAL (ops[1]), mode); |
4688 | if (val != INTVAL (ops[1])) | |
644459d0 | 4689 | { |
9d98604b | 4690 | emit_move_insn (ops[0], GEN_INT (val)); |
4691 | return 1; | |
644459d0 | 4692 | } |
4693 | } | |
9d98604b | 4694 | if (MEM_P (ops[0])) |
6cf5579e | 4695 | { |
4696 | if (MEM_ADDR_SPACE (ops[0])) | |
4697 | ops[0] = expand_ea_mem (ops[0], true); | |
4698 | return spu_split_store (ops); | |
4699 | } | |
9d98604b | 4700 | if (MEM_P (ops[1])) |
6cf5579e | 4701 | { |
4702 | if (MEM_ADDR_SPACE (ops[1])) | |
4703 | ops[1] = expand_ea_mem (ops[1], false); | |
4704 | return spu_split_load (ops); | |
4705 | } | |
9d98604b | 4706 | |
644459d0 | 4707 | return 0; |
4708 | } | |
4709 | ||
9d98604b | 4710 | static void |
4711 | spu_convert_move (rtx dst, rtx src) | |
644459d0 | 4712 | { |
9d98604b | 4713 | enum machine_mode mode = GET_MODE (dst); |
4714 | enum machine_mode int_mode = mode_for_size (GET_MODE_BITSIZE (mode), MODE_INT, 0); | |
4715 | rtx reg; | |
4716 | gcc_assert (GET_MODE (src) == TImode); | |
4717 | reg = int_mode != mode ? gen_reg_rtx (int_mode) : dst; | |
4718 | emit_insn (gen_rtx_SET (VOIDmode, reg, | |
4719 | gen_rtx_TRUNCATE (int_mode, | |
4720 | gen_rtx_LSHIFTRT (TImode, src, | |
4721 | GEN_INT (int_mode == DImode ? 64 : 96))))); | |
4722 | if (int_mode != mode) | |
4723 | { | |
4724 | reg = simplify_gen_subreg (mode, reg, int_mode, 0); | |
4725 | emit_move_insn (dst, reg); | |
4726 | } | |
4727 | } | |
644459d0 | 4728 | |
9d98604b | 4729 | /* Load TImode values into DST0 and DST1 (when it is non-NULL) using |
4730 | the address from SRC and SRC+16. Return a REG or CONST_INT that | |
4731 | specifies how many bytes to rotate the loaded registers, plus any | |
4732 | extra from EXTRA_ROTQBY. The address and rotate amounts are | |
4733 | normalized to improve merging of loads and rotate computations. */ | |
4734 | static rtx | |
4735 | spu_expand_load (rtx dst0, rtx dst1, rtx src, int extra_rotby) | |
4736 | { | |
4737 | rtx addr = XEXP (src, 0); | |
4738 | rtx p0, p1, rot, addr0, addr1; | |
4739 | int rot_amt; | |
644459d0 | 4740 | |
4741 | rot = 0; | |
4742 | rot_amt = 0; | |
9d98604b | 4743 | |
4744 | if (MEM_ALIGN (src) >= 128) | |
4745 | /* Address is already aligned; simply perform a TImode load. */ ; | |
4746 | else if (GET_CODE (addr) == PLUS) | |
644459d0 | 4747 | { |
4748 | /* 8 cases: | |
4749 | aligned reg + aligned reg => lqx | |
4750 | aligned reg + unaligned reg => lqx, rotqby | |
4751 | aligned reg + aligned const => lqd | |
4752 | aligned reg + unaligned const => lqd, rotqbyi | |
4753 | unaligned reg + aligned reg => lqx, rotqby | |
4754 | unaligned reg + unaligned reg => lqx, a, rotqby (1 scratch) | |
4755 | unaligned reg + aligned const => lqd, rotqby | |
4756 | unaligned reg + unaligned const -> not allowed by legitimate address | |
4757 | */ | |
4758 | p0 = XEXP (addr, 0); | |
4759 | p1 = XEXP (addr, 1); | |
9d98604b | 4760 | if (!reg_aligned_for_addr (p0)) |
644459d0 | 4761 | { |
9d98604b | 4762 | if (REG_P (p1) && !reg_aligned_for_addr (p1)) |
644459d0 | 4763 | { |
9d98604b | 4764 | rot = gen_reg_rtx (SImode); |
4765 | emit_insn (gen_addsi3 (rot, p0, p1)); | |
4766 | } | |
4767 | else if (GET_CODE (p1) == CONST_INT && (INTVAL (p1) & 15)) | |
4768 | { | |
4769 | if (INTVAL (p1) > 0 | |
4770 | && REG_POINTER (p0) | |
4771 | && INTVAL (p1) * BITS_PER_UNIT | |
4772 | < REGNO_POINTER_ALIGN (REGNO (p0))) | |
4773 | { | |
4774 | rot = gen_reg_rtx (SImode); | |
4775 | emit_insn (gen_addsi3 (rot, p0, p1)); | |
4776 | addr = p0; | |
4777 | } | |
4778 | else | |
4779 | { | |
4780 | rtx x = gen_reg_rtx (SImode); | |
4781 | emit_move_insn (x, p1); | |
4782 | if (!spu_arith_operand (p1, SImode)) | |
4783 | p1 = x; | |
4784 | rot = gen_reg_rtx (SImode); | |
4785 | emit_insn (gen_addsi3 (rot, p0, p1)); | |
4786 | addr = gen_rtx_PLUS (Pmode, p0, x); | |
4787 | } | |
644459d0 | 4788 | } |
4789 | else | |
4790 | rot = p0; | |
4791 | } | |
4792 | else | |
4793 | { | |
4794 | if (GET_CODE (p1) == CONST_INT && (INTVAL (p1) & 15)) | |
4795 | { | |
4796 | rot_amt = INTVAL (p1) & 15; | |
9d98604b | 4797 | if (INTVAL (p1) & -16) |
4798 | { | |
4799 | p1 = GEN_INT (INTVAL (p1) & -16); | |
4800 | addr = gen_rtx_PLUS (SImode, p0, p1); | |
4801 | } | |
4802 | else | |
4803 | addr = p0; | |
644459d0 | 4804 | } |
9d98604b | 4805 | else if (REG_P (p1) && !reg_aligned_for_addr (p1)) |
644459d0 | 4806 | rot = p1; |
4807 | } | |
4808 | } | |
9d98604b | 4809 | else if (REG_P (addr)) |
644459d0 | 4810 | { |
9d98604b | 4811 | if (!reg_aligned_for_addr (addr)) |
644459d0 | 4812 | rot = addr; |
4813 | } | |
4814 | else if (GET_CODE (addr) == CONST) | |
4815 | { | |
4816 | if (GET_CODE (XEXP (addr, 0)) == PLUS | |
4817 | && ALIGNED_SYMBOL_REF_P (XEXP (XEXP (addr, 0), 0)) | |
4818 | && GET_CODE (XEXP (XEXP (addr, 0), 1)) == CONST_INT) | |
4819 | { | |
4820 | rot_amt = INTVAL (XEXP (XEXP (addr, 0), 1)); | |
4821 | if (rot_amt & -16) | |
4822 | addr = gen_rtx_CONST (Pmode, | |
4823 | gen_rtx_PLUS (Pmode, | |
4824 | XEXP (XEXP (addr, 0), 0), | |
4825 | GEN_INT (rot_amt & -16))); | |
4826 | else | |
4827 | addr = XEXP (XEXP (addr, 0), 0); | |
4828 | } | |
4829 | else | |
9d98604b | 4830 | { |
4831 | rot = gen_reg_rtx (Pmode); | |
4832 | emit_move_insn (rot, addr); | |
4833 | } | |
644459d0 | 4834 | } |
4835 | else if (GET_CODE (addr) == CONST_INT) | |
4836 | { | |
4837 | rot_amt = INTVAL (addr); | |
4838 | addr = GEN_INT (rot_amt & -16); | |
4839 | } | |
4840 | else if (!ALIGNED_SYMBOL_REF_P (addr)) | |
9d98604b | 4841 | { |
4842 | rot = gen_reg_rtx (Pmode); | |
4843 | emit_move_insn (rot, addr); | |
4844 | } | |
644459d0 | 4845 | |
9d98604b | 4846 | rot_amt += extra_rotby; |
644459d0 | 4847 | |
4848 | rot_amt &= 15; | |
4849 | ||
4850 | if (rot && rot_amt) | |
4851 | { | |
9d98604b | 4852 | rtx x = gen_reg_rtx (SImode); |
4853 | emit_insn (gen_addsi3 (x, rot, GEN_INT (rot_amt))); | |
4854 | rot = x; | |
644459d0 | 4855 | rot_amt = 0; |
4856 | } | |
9d98604b | 4857 | if (!rot && rot_amt) |
4858 | rot = GEN_INT (rot_amt); | |
4859 | ||
4860 | addr0 = copy_rtx (addr); | |
4861 | addr0 = gen_rtx_AND (SImode, copy_rtx (addr), GEN_INT (-16)); | |
4862 | emit_insn (gen__movti (dst0, change_address (src, TImode, addr0))); | |
4863 | ||
4864 | if (dst1) | |
4865 | { | |
4866 | addr1 = plus_constant (copy_rtx (addr), 16); | |
4867 | addr1 = gen_rtx_AND (SImode, addr1, GEN_INT (-16)); | |
4868 | emit_insn (gen__movti (dst1, change_address (src, TImode, addr1))); | |
4869 | } | |
644459d0 | 4870 | |
9d98604b | 4871 | return rot; |
4872 | } | |
4873 | ||
4874 | int | |
4875 | spu_split_load (rtx * ops) | |
4876 | { | |
4877 | enum machine_mode mode = GET_MODE (ops[0]); | |
4878 | rtx addr, load, rot; | |
4879 | int rot_amt; | |
644459d0 | 4880 | |
9d98604b | 4881 | if (GET_MODE_SIZE (mode) >= 16) |
4882 | return 0; | |
644459d0 | 4883 | |
9d98604b | 4884 | addr = XEXP (ops[1], 0); |
4885 | gcc_assert (GET_CODE (addr) != AND); | |
4886 | ||
4887 | if (!address_needs_split (ops[1])) | |
4888 | { | |
4889 | ops[1] = change_address (ops[1], TImode, addr); | |
4890 | load = gen_reg_rtx (TImode); | |
4891 | emit_insn (gen__movti (load, ops[1])); | |
4892 | spu_convert_move (ops[0], load); | |
4893 | return 1; | |
4894 | } | |
4895 | ||
4896 | rot_amt = GET_MODE_SIZE (mode) < 4 ? GET_MODE_SIZE (mode) - 4 : 0; | |
4897 | ||
4898 | load = gen_reg_rtx (TImode); | |
4899 | rot = spu_expand_load (load, 0, ops[1], rot_amt); | |
644459d0 | 4900 | |
4901 | if (rot) | |
4902 | emit_insn (gen_rotqby_ti (load, load, rot)); | |
644459d0 | 4903 | |
9d98604b | 4904 | spu_convert_move (ops[0], load); |
4905 | return 1; | |
644459d0 | 4906 | } |
4907 | ||
9d98604b | 4908 | int |
644459d0 | 4909 | spu_split_store (rtx * ops) |
4910 | { | |
4911 | enum machine_mode mode = GET_MODE (ops[0]); | |
9d98604b | 4912 | rtx reg; |
644459d0 | 4913 | rtx addr, p0, p1, p1_lo, smem; |
4914 | int aform; | |
4915 | int scalar; | |
4916 | ||
9d98604b | 4917 | if (GET_MODE_SIZE (mode) >= 16) |
4918 | return 0; | |
4919 | ||
644459d0 | 4920 | addr = XEXP (ops[0], 0); |
9d98604b | 4921 | gcc_assert (GET_CODE (addr) != AND); |
4922 | ||
4923 | if (!address_needs_split (ops[0])) | |
4924 | { | |
4925 | reg = gen_reg_rtx (TImode); | |
4926 | emit_insn (gen_spu_convert (reg, ops[1])); | |
4927 | ops[0] = change_address (ops[0], TImode, addr); | |
4928 | emit_move_insn (ops[0], reg); | |
4929 | return 1; | |
4930 | } | |
644459d0 | 4931 | |
4932 | if (GET_CODE (addr) == PLUS) | |
4933 | { | |
4934 | /* 8 cases: | |
4935 | aligned reg + aligned reg => lqx, c?x, shuf, stqx | |
4936 | aligned reg + unaligned reg => lqx, c?x, shuf, stqx | |
4937 | aligned reg + aligned const => lqd, c?d, shuf, stqx | |
4938 | aligned reg + unaligned const => lqd, c?d, shuf, stqx | |
4939 | unaligned reg + aligned reg => lqx, c?x, shuf, stqx | |
4940 | unaligned reg + unaligned reg => lqx, c?x, shuf, stqx | |
4941 | unaligned reg + aligned const => lqd, c?d, shuf, stqx | |
9d98604b | 4942 | unaligned reg + unaligned const -> lqx, c?d, shuf, stqx |
644459d0 | 4943 | */ |
4944 | aform = 0; | |
4945 | p0 = XEXP (addr, 0); | |
4946 | p1 = p1_lo = XEXP (addr, 1); | |
9d98604b | 4947 | if (REG_P (p0) && GET_CODE (p1) == CONST_INT) |
644459d0 | 4948 | { |
4949 | p1_lo = GEN_INT (INTVAL (p1) & 15); | |
9d98604b | 4950 | if (reg_aligned_for_addr (p0)) |
4951 | { | |
4952 | p1 = GEN_INT (INTVAL (p1) & -16); | |
4953 | if (p1 == const0_rtx) | |
4954 | addr = p0; | |
4955 | else | |
4956 | addr = gen_rtx_PLUS (SImode, p0, p1); | |
4957 | } | |
4958 | else | |
4959 | { | |
4960 | rtx x = gen_reg_rtx (SImode); | |
4961 | emit_move_insn (x, p1); | |
4962 | addr = gen_rtx_PLUS (SImode, p0, x); | |
4963 | } | |
644459d0 | 4964 | } |
4965 | } | |
9d98604b | 4966 | else if (REG_P (addr)) |
644459d0 | 4967 | { |
4968 | aform = 0; | |
4969 | p0 = addr; | |
4970 | p1 = p1_lo = const0_rtx; | |
4971 | } | |
4972 | else | |
4973 | { | |
4974 | aform = 1; | |
4975 | p0 = gen_rtx_REG (SImode, STACK_POINTER_REGNUM); | |
4976 | p1 = 0; /* aform doesn't use p1 */ | |
4977 | p1_lo = addr; | |
4978 | if (ALIGNED_SYMBOL_REF_P (addr)) | |
4979 | p1_lo = const0_rtx; | |
9d98604b | 4980 | else if (GET_CODE (addr) == CONST |
4981 | && GET_CODE (XEXP (addr, 0)) == PLUS | |
4982 | && ALIGNED_SYMBOL_REF_P (XEXP (XEXP (addr, 0), 0)) | |
4983 | && GET_CODE (XEXP (XEXP (addr, 0), 1)) == CONST_INT) | |
644459d0 | 4984 | { |
9d98604b | 4985 | HOST_WIDE_INT v = INTVAL (XEXP (XEXP (addr, 0), 1)); |
4986 | if ((v & -16) != 0) | |
4987 | addr = gen_rtx_CONST (Pmode, | |
4988 | gen_rtx_PLUS (Pmode, | |
4989 | XEXP (XEXP (addr, 0), 0), | |
4990 | GEN_INT (v & -16))); | |
4991 | else | |
4992 | addr = XEXP (XEXP (addr, 0), 0); | |
4993 | p1_lo = GEN_INT (v & 15); | |
644459d0 | 4994 | } |
4995 | else if (GET_CODE (addr) == CONST_INT) | |
4996 | { | |
4997 | p1_lo = GEN_INT (INTVAL (addr) & 15); | |
4998 | addr = GEN_INT (INTVAL (addr) & -16); | |
4999 | } | |
9d98604b | 5000 | else |
5001 | { | |
5002 | p1_lo = gen_reg_rtx (SImode); | |
5003 | emit_move_insn (p1_lo, addr); | |
5004 | } | |
644459d0 | 5005 | } |
5006 | ||
4cbad5bb | 5007 | gcc_assert (aform == 0 || aform == 1); |
9d98604b | 5008 | reg = gen_reg_rtx (TImode); |
e04cf423 | 5009 | |
644459d0 | 5010 | scalar = store_with_one_insn_p (ops[0]); |
5011 | if (!scalar) | |
5012 | { | |
5013 | /* We could copy the flags from the ops[0] MEM to mem here, | |
5014 | We don't because we want this load to be optimized away if | |
5015 | possible, and copying the flags will prevent that in certain | |
5016 | cases, e.g. consider the volatile flag. */ | |
5017 | ||
9d98604b | 5018 | rtx pat = gen_reg_rtx (TImode); |
e04cf423 | 5019 | rtx lmem = change_address (ops[0], TImode, copy_rtx (addr)); |
5020 | set_mem_alias_set (lmem, 0); | |
5021 | emit_insn (gen_movti (reg, lmem)); | |
644459d0 | 5022 | |
9d98604b | 5023 | if (!p0 || reg_aligned_for_addr (p0)) |
644459d0 | 5024 | p0 = stack_pointer_rtx; |
5025 | if (!p1_lo) | |
5026 | p1_lo = const0_rtx; | |
5027 | ||
5028 | emit_insn (gen_cpat (pat, p0, p1_lo, GEN_INT (GET_MODE_SIZE (mode)))); | |
5029 | emit_insn (gen_shufb (reg, ops[1], reg, pat)); | |
5030 | } | |
644459d0 | 5031 | else |
5032 | { | |
5033 | if (GET_CODE (ops[1]) == REG) | |
5034 | emit_insn (gen_spu_convert (reg, ops[1])); | |
5035 | else if (GET_CODE (ops[1]) == SUBREG) | |
5036 | emit_insn (gen_spu_convert (reg, SUBREG_REG (ops[1]))); | |
5037 | else | |
5038 | abort (); | |
5039 | } | |
5040 | ||
5041 | if (GET_MODE_SIZE (mode) < 4 && scalar) | |
9d98604b | 5042 | emit_insn (gen_ashlti3 |
5043 | (reg, reg, GEN_INT (32 - GET_MODE_BITSIZE (mode)))); | |
644459d0 | 5044 | |
9d98604b | 5045 | smem = change_address (ops[0], TImode, copy_rtx (addr)); |
644459d0 | 5046 | /* We can't use the previous alias set because the memory has changed |
5047 | size and can potentially overlap objects of other types. */ | |
5048 | set_mem_alias_set (smem, 0); | |
5049 | ||
e04cf423 | 5050 | emit_insn (gen_movti (smem, reg)); |
9d98604b | 5051 | return 1; |
644459d0 | 5052 | } |
5053 | ||
5054 | /* Return TRUE if X is MEM which is a struct member reference | |
5055 | and the member can safely be loaded and stored with a single | |
5056 | instruction because it is padded. */ | |
5057 | static int | |
5058 | mem_is_padded_component_ref (rtx x) | |
5059 | { | |
5060 | tree t = MEM_EXPR (x); | |
5061 | tree r; | |
5062 | if (!t || TREE_CODE (t) != COMPONENT_REF) | |
5063 | return 0; | |
5064 | t = TREE_OPERAND (t, 1); | |
5065 | if (!t || TREE_CODE (t) != FIELD_DECL | |
5066 | || DECL_ALIGN (t) < 128 || AGGREGATE_TYPE_P (TREE_TYPE (t))) | |
5067 | return 0; | |
5068 | /* Only do this for RECORD_TYPEs, not UNION_TYPEs. */ | |
5069 | r = DECL_FIELD_CONTEXT (t); | |
5070 | if (!r || TREE_CODE (r) != RECORD_TYPE) | |
5071 | return 0; | |
5072 | /* Make sure they are the same mode */ | |
5073 | if (GET_MODE (x) != TYPE_MODE (TREE_TYPE (t))) | |
5074 | return 0; | |
5075 | /* If there are no following fields then the field alignment assures | |
fa7637bd | 5076 | the structure is padded to the alignment which means this field is |
5077 | padded too. */ | |
644459d0 | 5078 | if (TREE_CHAIN (t) == 0) |
5079 | return 1; | |
5080 | /* If the following field is also aligned then this field will be | |
5081 | padded. */ | |
5082 | t = TREE_CHAIN (t); | |
5083 | if (TREE_CODE (t) == FIELD_DECL && DECL_ALIGN (t) >= 128) | |
5084 | return 1; | |
5085 | return 0; | |
5086 | } | |
5087 | ||
c7b91b14 | 5088 | /* Parse the -mfixed-range= option string. */ |
5089 | static void | |
5090 | fix_range (const char *const_str) | |
5091 | { | |
5092 | int i, first, last; | |
5093 | char *str, *dash, *comma; | |
5094 | ||
5095 | /* str must be of the form REG1'-'REG2{,REG1'-'REG} where REG1 and | |
5096 | REG2 are either register names or register numbers. The effect | |
5097 | of this option is to mark the registers in the range from REG1 to | |
5098 | REG2 as ``fixed'' so they won't be used by the compiler. */ | |
5099 | ||
5100 | i = strlen (const_str); | |
5101 | str = (char *) alloca (i + 1); | |
5102 | memcpy (str, const_str, i + 1); | |
5103 | ||
5104 | while (1) | |
5105 | { | |
5106 | dash = strchr (str, '-'); | |
5107 | if (!dash) | |
5108 | { | |
5109 | warning (0, "value of -mfixed-range must have form REG1-REG2"); | |
5110 | return; | |
5111 | } | |
5112 | *dash = '\0'; | |
5113 | comma = strchr (dash + 1, ','); | |
5114 | if (comma) | |
5115 | *comma = '\0'; | |
5116 | ||
5117 | first = decode_reg_name (str); | |
5118 | if (first < 0) | |
5119 | { | |
5120 | warning (0, "unknown register name: %s", str); | |
5121 | return; | |
5122 | } | |
5123 | ||
5124 | last = decode_reg_name (dash + 1); | |
5125 | if (last < 0) | |
5126 | { | |
5127 | warning (0, "unknown register name: %s", dash + 1); | |
5128 | return; | |
5129 | } | |
5130 | ||
5131 | *dash = '-'; | |
5132 | ||
5133 | if (first > last) | |
5134 | { | |
5135 | warning (0, "%s-%s is an empty range", str, dash + 1); | |
5136 | return; | |
5137 | } | |
5138 | ||
5139 | for (i = first; i <= last; ++i) | |
5140 | fixed_regs[i] = call_used_regs[i] = 1; | |
5141 | ||
5142 | if (!comma) | |
5143 | break; | |
5144 | ||
5145 | *comma = ','; | |
5146 | str = comma + 1; | |
5147 | } | |
5148 | } | |
5149 | ||
644459d0 | 5150 | /* Return TRUE if x is a CONST_INT, CONST_DOUBLE or CONST_VECTOR that |
5151 | can be generated using the fsmbi instruction. */ | |
5152 | int | |
5153 | fsmbi_const_p (rtx x) | |
5154 | { | |
dea01258 | 5155 | if (CONSTANT_P (x)) |
5156 | { | |
5df189be | 5157 | /* We can always choose TImode for CONST_INT because the high bits |
dea01258 | 5158 | of an SImode will always be all 1s, i.e., valid for fsmbi. */ |
5df189be | 5159 | enum immediate_class c = classify_immediate (x, TImode); |
3072d30e | 5160 | return c == IC_FSMBI || (!epilogue_completed && c == IC_FSMBI2); |
dea01258 | 5161 | } |
5162 | return 0; | |
5163 | } | |
5164 | ||
5165 | /* Return TRUE if x is a CONST_INT, CONST_DOUBLE or CONST_VECTOR that | |
5166 | can be generated using the cbd, chd, cwd or cdd instruction. */ | |
5167 | int | |
5168 | cpat_const_p (rtx x, enum machine_mode mode) | |
5169 | { | |
5170 | if (CONSTANT_P (x)) | |
5171 | { | |
5172 | enum immediate_class c = classify_immediate (x, mode); | |
5173 | return c == IC_CPAT; | |
5174 | } | |
5175 | return 0; | |
5176 | } | |
644459d0 | 5177 | |
dea01258 | 5178 | rtx |
5179 | gen_cpat_const (rtx * ops) | |
5180 | { | |
5181 | unsigned char dst[16]; | |
5182 | int i, offset, shift, isize; | |
5183 | if (GET_CODE (ops[3]) != CONST_INT | |
5184 | || GET_CODE (ops[2]) != CONST_INT | |
5185 | || (GET_CODE (ops[1]) != CONST_INT | |
5186 | && GET_CODE (ops[1]) != REG)) | |
5187 | return 0; | |
5188 | if (GET_CODE (ops[1]) == REG | |
5189 | && (!REG_POINTER (ops[1]) | |
5190 | || REGNO_POINTER_ALIGN (ORIGINAL_REGNO (ops[1])) < 128)) | |
5191 | return 0; | |
644459d0 | 5192 | |
5193 | for (i = 0; i < 16; i++) | |
dea01258 | 5194 | dst[i] = i + 16; |
5195 | isize = INTVAL (ops[3]); | |
5196 | if (isize == 1) | |
5197 | shift = 3; | |
5198 | else if (isize == 2) | |
5199 | shift = 2; | |
5200 | else | |
5201 | shift = 0; | |
5202 | offset = (INTVAL (ops[2]) + | |
5203 | (GET_CODE (ops[1]) == | |
5204 | CONST_INT ? INTVAL (ops[1]) : 0)) & 15; | |
5205 | for (i = 0; i < isize; i++) | |
5206 | dst[offset + i] = i + shift; | |
5207 | return array_to_constant (TImode, dst); | |
644459d0 | 5208 | } |
5209 | ||
5210 | /* Convert a CONST_INT, CONST_DOUBLE, or CONST_VECTOR into a 16 byte | |
5211 | array. Use MODE for CONST_INT's. When the constant's mode is smaller | |
5212 | than 16 bytes, the value is repeated across the rest of the array. */ | |
5213 | void | |
5214 | constant_to_array (enum machine_mode mode, rtx x, unsigned char arr[16]) | |
5215 | { | |
5216 | HOST_WIDE_INT val; | |
5217 | int i, j, first; | |
5218 | ||
5219 | memset (arr, 0, 16); | |
5220 | mode = GET_MODE (x) != VOIDmode ? GET_MODE (x) : mode; | |
5221 | if (GET_CODE (x) == CONST_INT | |
5222 | || (GET_CODE (x) == CONST_DOUBLE | |
5223 | && (mode == SFmode || mode == DFmode))) | |
5224 | { | |
5225 | gcc_assert (mode != VOIDmode && mode != BLKmode); | |
5226 | ||
5227 | if (GET_CODE (x) == CONST_DOUBLE) | |
5228 | val = const_double_to_hwint (x); | |
5229 | else | |
5230 | val = INTVAL (x); | |
5231 | first = GET_MODE_SIZE (mode) - 1; | |
5232 | for (i = first; i >= 0; i--) | |
5233 | { | |
5234 | arr[i] = val & 0xff; | |
5235 | val >>= 8; | |
5236 | } | |
5237 | /* Splat the constant across the whole array. */ | |
5238 | for (j = 0, i = first + 1; i < 16; i++) | |
5239 | { | |
5240 | arr[i] = arr[j]; | |
5241 | j = (j == first) ? 0 : j + 1; | |
5242 | } | |
5243 | } | |
5244 | else if (GET_CODE (x) == CONST_DOUBLE) | |
5245 | { | |
5246 | val = CONST_DOUBLE_LOW (x); | |
5247 | for (i = 15; i >= 8; i--) | |
5248 | { | |
5249 | arr[i] = val & 0xff; | |
5250 | val >>= 8; | |
5251 | } | |
5252 | val = CONST_DOUBLE_HIGH (x); | |
5253 | for (i = 7; i >= 0; i--) | |
5254 | { | |
5255 | arr[i] = val & 0xff; | |
5256 | val >>= 8; | |
5257 | } | |
5258 | } | |
5259 | else if (GET_CODE (x) == CONST_VECTOR) | |
5260 | { | |
5261 | int units; | |
5262 | rtx elt; | |
5263 | mode = GET_MODE_INNER (mode); | |
5264 | units = CONST_VECTOR_NUNITS (x); | |
5265 | for (i = 0; i < units; i++) | |
5266 | { | |
5267 | elt = CONST_VECTOR_ELT (x, i); | |
5268 | if (GET_CODE (elt) == CONST_INT || GET_CODE (elt) == CONST_DOUBLE) | |
5269 | { | |
5270 | if (GET_CODE (elt) == CONST_DOUBLE) | |
5271 | val = const_double_to_hwint (elt); | |
5272 | else | |
5273 | val = INTVAL (elt); | |
5274 | first = GET_MODE_SIZE (mode) - 1; | |
5275 | if (first + i * GET_MODE_SIZE (mode) > 16) | |
5276 | abort (); | |
5277 | for (j = first; j >= 0; j--) | |
5278 | { | |
5279 | arr[j + i * GET_MODE_SIZE (mode)] = val & 0xff; | |
5280 | val >>= 8; | |
5281 | } | |
5282 | } | |
5283 | } | |
5284 | } | |
5285 | else | |
5286 | gcc_unreachable(); | |
5287 | } | |
5288 | ||
5289 | /* Convert a 16 byte array to a constant of mode MODE. When MODE is | |
5290 | smaller than 16 bytes, use the bytes that would represent that value | |
5291 | in a register, e.g., for QImode return the value of arr[3]. */ | |
5292 | rtx | |
e96f2783 | 5293 | array_to_constant (enum machine_mode mode, const unsigned char arr[16]) |
644459d0 | 5294 | { |
5295 | enum machine_mode inner_mode; | |
5296 | rtvec v; | |
5297 | int units, size, i, j, k; | |
5298 | HOST_WIDE_INT val; | |
5299 | ||
5300 | if (GET_MODE_CLASS (mode) == MODE_INT | |
5301 | && GET_MODE_BITSIZE (mode) <= HOST_BITS_PER_WIDE_INT) | |
5302 | { | |
5303 | j = GET_MODE_SIZE (mode); | |
5304 | i = j < 4 ? 4 - j : 0; | |
5305 | for (val = 0; i < j; i++) | |
5306 | val = (val << 8) | arr[i]; | |
5307 | val = trunc_int_for_mode (val, mode); | |
5308 | return GEN_INT (val); | |
5309 | } | |
5310 | ||
5311 | if (mode == TImode) | |
5312 | { | |
5313 | HOST_WIDE_INT high; | |
5314 | for (i = high = 0; i < 8; i++) | |
5315 | high = (high << 8) | arr[i]; | |
5316 | for (i = 8, val = 0; i < 16; i++) | |
5317 | val = (val << 8) | arr[i]; | |
5318 | return immed_double_const (val, high, TImode); | |
5319 | } | |
5320 | if (mode == SFmode) | |
5321 | { | |
5322 | val = (arr[0] << 24) | (arr[1] << 16) | (arr[2] << 8) | arr[3]; | |
5323 | val = trunc_int_for_mode (val, SImode); | |
171b6d22 | 5324 | return hwint_to_const_double (SFmode, val); |
644459d0 | 5325 | } |
5326 | if (mode == DFmode) | |
5327 | { | |
1f915911 | 5328 | for (i = 0, val = 0; i < 8; i++) |
5329 | val = (val << 8) | arr[i]; | |
171b6d22 | 5330 | return hwint_to_const_double (DFmode, val); |
644459d0 | 5331 | } |
5332 | ||
5333 | if (!VECTOR_MODE_P (mode)) | |
5334 | abort (); | |
5335 | ||
5336 | units = GET_MODE_NUNITS (mode); | |
5337 | size = GET_MODE_UNIT_SIZE (mode); | |
5338 | inner_mode = GET_MODE_INNER (mode); | |
5339 | v = rtvec_alloc (units); | |
5340 | ||
5341 | for (k = i = 0; i < units; ++i) | |
5342 | { | |
5343 | val = 0; | |
5344 | for (j = 0; j < size; j++, k++) | |
5345 | val = (val << 8) | arr[k]; | |
5346 | ||
5347 | if (GET_MODE_CLASS (inner_mode) == MODE_FLOAT) | |
5348 | RTVEC_ELT (v, i) = hwint_to_const_double (inner_mode, val); | |
5349 | else | |
5350 | RTVEC_ELT (v, i) = GEN_INT (trunc_int_for_mode (val, inner_mode)); | |
5351 | } | |
5352 | if (k > 16) | |
5353 | abort (); | |
5354 | ||
5355 | return gen_rtx_CONST_VECTOR (mode, v); | |
5356 | } | |
5357 | ||
5358 | static void | |
5359 | reloc_diagnostic (rtx x) | |
5360 | { | |
712d2297 | 5361 | tree decl = 0; |
644459d0 | 5362 | if (!flag_pic || !(TARGET_WARN_RELOC || TARGET_ERROR_RELOC)) |
5363 | return; | |
5364 | ||
5365 | if (GET_CODE (x) == SYMBOL_REF) | |
5366 | decl = SYMBOL_REF_DECL (x); | |
5367 | else if (GET_CODE (x) == CONST | |
5368 | && GET_CODE (XEXP (XEXP (x, 0), 0)) == SYMBOL_REF) | |
5369 | decl = SYMBOL_REF_DECL (XEXP (XEXP (x, 0), 0)); | |
5370 | ||
5371 | /* SYMBOL_REF_DECL is not necessarily a DECL. */ | |
5372 | if (decl && !DECL_P (decl)) | |
5373 | decl = 0; | |
5374 | ||
644459d0 | 5375 | /* The decl could be a string constant. */ |
5376 | if (decl && DECL_P (decl)) | |
712d2297 | 5377 | { |
5378 | location_t loc; | |
5379 | /* We use last_assemble_variable_decl to get line information. It's | |
5380 | not always going to be right and might not even be close, but will | |
5381 | be right for the more common cases. */ | |
5382 | if (!last_assemble_variable_decl || in_section == ctors_section) | |
5383 | loc = DECL_SOURCE_LOCATION (decl); | |
5384 | else | |
5385 | loc = DECL_SOURCE_LOCATION (last_assemble_variable_decl); | |
644459d0 | 5386 | |
712d2297 | 5387 | if (TARGET_WARN_RELOC) |
5388 | warning_at (loc, 0, | |
5389 | "creating run-time relocation for %qD", decl); | |
5390 | else | |
5391 | error_at (loc, | |
5392 | "creating run-time relocation for %qD", decl); | |
5393 | } | |
5394 | else | |
5395 | { | |
5396 | if (TARGET_WARN_RELOC) | |
5397 | warning_at (input_location, 0, "creating run-time relocation"); | |
5398 | else | |
5399 | error_at (input_location, "creating run-time relocation"); | |
5400 | } | |
644459d0 | 5401 | } |
5402 | ||
5403 | /* Hook into assemble_integer so we can generate an error for run-time | |
5404 | relocations. The SPU ABI disallows them. */ | |
5405 | static bool | |
5406 | spu_assemble_integer (rtx x, unsigned int size, int aligned_p) | |
5407 | { | |
5408 | /* By default run-time relocations aren't supported, but we allow them | |
5409 | in case users support it in their own run-time loader. And we provide | |
5410 | a warning for those users that don't. */ | |
5411 | if ((GET_CODE (x) == SYMBOL_REF) | |
5412 | || GET_CODE (x) == LABEL_REF || GET_CODE (x) == CONST) | |
5413 | reloc_diagnostic (x); | |
5414 | ||
5415 | return default_assemble_integer (x, size, aligned_p); | |
5416 | } | |
5417 | ||
5418 | static void | |
5419 | spu_asm_globalize_label (FILE * file, const char *name) | |
5420 | { | |
5421 | fputs ("\t.global\t", file); | |
5422 | assemble_name (file, name); | |
5423 | fputs ("\n", file); | |
5424 | } | |
5425 | ||
5426 | static bool | |
f529eb25 | 5427 | spu_rtx_costs (rtx x, int code, int outer_code ATTRIBUTE_UNUSED, int *total, |
5428 | bool speed ATTRIBUTE_UNUSED) | |
644459d0 | 5429 | { |
5430 | enum machine_mode mode = GET_MODE (x); | |
5431 | int cost = COSTS_N_INSNS (2); | |
5432 | ||
5433 | /* Folding to a CONST_VECTOR will use extra space but there might | |
5434 | be only a small savings in cycles. We'd like to use a CONST_VECTOR | |
9505a73b | 5435 | only if it allows us to fold away multiple insns. Changing the cost |
644459d0 | 5436 | of a CONST_VECTOR here (or in CONST_COSTS) doesn't help though |
5437 | because this cost will only be compared against a single insn. | |
5438 | if (code == CONST_VECTOR) | |
ca316360 | 5439 | return spu_legitimate_constant_p (mode, x) ? cost : COSTS_N_INSNS (6); |
644459d0 | 5440 | */ |
5441 | ||
5442 | /* Use defaults for float operations. Not accurate but good enough. */ | |
5443 | if (mode == DFmode) | |
5444 | { | |
5445 | *total = COSTS_N_INSNS (13); | |
5446 | return true; | |
5447 | } | |
5448 | if (mode == SFmode) | |
5449 | { | |
5450 | *total = COSTS_N_INSNS (6); | |
5451 | return true; | |
5452 | } | |
5453 | switch (code) | |
5454 | { | |
5455 | case CONST_INT: | |
5456 | if (satisfies_constraint_K (x)) | |
5457 | *total = 0; | |
5458 | else if (INTVAL (x) >= -0x80000000ll && INTVAL (x) <= 0xffffffffll) | |
5459 | *total = COSTS_N_INSNS (1); | |
5460 | else | |
5461 | *total = COSTS_N_INSNS (3); | |
5462 | return true; | |
5463 | ||
5464 | case CONST: | |
5465 | *total = COSTS_N_INSNS (3); | |
5466 | return true; | |
5467 | ||
5468 | case LABEL_REF: | |
5469 | case SYMBOL_REF: | |
5470 | *total = COSTS_N_INSNS (0); | |
5471 | return true; | |
5472 | ||
5473 | case CONST_DOUBLE: | |
5474 | *total = COSTS_N_INSNS (5); | |
5475 | return true; | |
5476 | ||
5477 | case FLOAT_EXTEND: | |
5478 | case FLOAT_TRUNCATE: | |
5479 | case FLOAT: | |
5480 | case UNSIGNED_FLOAT: | |
5481 | case FIX: | |
5482 | case UNSIGNED_FIX: | |
5483 | *total = COSTS_N_INSNS (7); | |
5484 | return true; | |
5485 | ||
5486 | case PLUS: | |
5487 | if (mode == TImode) | |
5488 | { | |
5489 | *total = COSTS_N_INSNS (9); | |
5490 | return true; | |
5491 | } | |
5492 | break; | |
5493 | ||
5494 | case MULT: | |
5495 | cost = | |
5496 | GET_CODE (XEXP (x, 0)) == | |
5497 | REG ? COSTS_N_INSNS (12) : COSTS_N_INSNS (7); | |
5498 | if (mode == SImode && GET_CODE (XEXP (x, 0)) == REG) | |
5499 | { | |
5500 | if (GET_CODE (XEXP (x, 1)) == CONST_INT) | |
5501 | { | |
5502 | HOST_WIDE_INT val = INTVAL (XEXP (x, 1)); | |
5503 | cost = COSTS_N_INSNS (14); | |
5504 | if ((val & 0xffff) == 0) | |
5505 | cost = COSTS_N_INSNS (9); | |
5506 | else if (val > 0 && val < 0x10000) | |
5507 | cost = COSTS_N_INSNS (11); | |
5508 | } | |
5509 | } | |
5510 | *total = cost; | |
5511 | return true; | |
5512 | case DIV: | |
5513 | case UDIV: | |
5514 | case MOD: | |
5515 | case UMOD: | |
5516 | *total = COSTS_N_INSNS (20); | |
5517 | return true; | |
5518 | case ROTATE: | |
5519 | case ROTATERT: | |
5520 | case ASHIFT: | |
5521 | case ASHIFTRT: | |
5522 | case LSHIFTRT: | |
5523 | *total = COSTS_N_INSNS (4); | |
5524 | return true; | |
5525 | case UNSPEC: | |
5526 | if (XINT (x, 1) == UNSPEC_CONVERT) | |
5527 | *total = COSTS_N_INSNS (0); | |
5528 | else | |
5529 | *total = COSTS_N_INSNS (4); | |
5530 | return true; | |
5531 | } | |
5532 | /* Scale cost by mode size. Except when initializing (cfun->decl == 0). */ | |
5533 | if (GET_MODE_CLASS (mode) == MODE_INT | |
5534 | && GET_MODE_SIZE (mode) > GET_MODE_SIZE (SImode) && cfun && cfun->decl) | |
5535 | cost = cost * (GET_MODE_SIZE (mode) / GET_MODE_SIZE (SImode)) | |
5536 | * (GET_MODE_SIZE (mode) / GET_MODE_SIZE (SImode)); | |
5537 | *total = cost; | |
5538 | return true; | |
5539 | } | |
5540 | ||
1bd43494 | 5541 | static enum machine_mode |
5542 | spu_unwind_word_mode (void) | |
644459d0 | 5543 | { |
1bd43494 | 5544 | return SImode; |
644459d0 | 5545 | } |
5546 | ||
5547 | /* Decide whether we can make a sibling call to a function. DECL is the | |
5548 | declaration of the function being targeted by the call and EXP is the | |
5549 | CALL_EXPR representing the call. */ | |
5550 | static bool | |
5551 | spu_function_ok_for_sibcall (tree decl, tree exp ATTRIBUTE_UNUSED) | |
5552 | { | |
5553 | return decl && !TARGET_LARGE_MEM; | |
5554 | } | |
5555 | ||
5556 | /* We need to correctly update the back chain pointer and the Available | |
5557 | Stack Size (which is in the second slot of the sp register.) */ | |
5558 | void | |
5559 | spu_allocate_stack (rtx op0, rtx op1) | |
5560 | { | |
5561 | HOST_WIDE_INT v; | |
5562 | rtx chain = gen_reg_rtx (V4SImode); | |
5563 | rtx stack_bot = gen_frame_mem (V4SImode, stack_pointer_rtx); | |
5564 | rtx sp = gen_reg_rtx (V4SImode); | |
5565 | rtx splatted = gen_reg_rtx (V4SImode); | |
5566 | rtx pat = gen_reg_rtx (TImode); | |
5567 | ||
5568 | /* copy the back chain so we can save it back again. */ | |
5569 | emit_move_insn (chain, stack_bot); | |
5570 | ||
5571 | op1 = force_reg (SImode, op1); | |
5572 | ||
5573 | v = 0x1020300010203ll; | |
5574 | emit_move_insn (pat, immed_double_const (v, v, TImode)); | |
5575 | emit_insn (gen_shufb (splatted, op1, op1, pat)); | |
5576 | ||
5577 | emit_insn (gen_spu_convert (sp, stack_pointer_rtx)); | |
5578 | emit_insn (gen_subv4si3 (sp, sp, splatted)); | |
5579 | ||
5580 | if (flag_stack_check) | |
5581 | { | |
5582 | rtx avail = gen_reg_rtx(SImode); | |
5583 | rtx result = gen_reg_rtx(SImode); | |
5584 | emit_insn (gen_vec_extractv4si (avail, sp, GEN_INT (1))); | |
5585 | emit_insn (gen_cgt_si(result, avail, GEN_INT (-1))); | |
5586 | emit_insn (gen_spu_heq (result, GEN_INT(0) )); | |
5587 | } | |
5588 | ||
5589 | emit_insn (gen_spu_convert (stack_pointer_rtx, sp)); | |
5590 | ||
5591 | emit_move_insn (stack_bot, chain); | |
5592 | ||
5593 | emit_move_insn (op0, virtual_stack_dynamic_rtx); | |
5594 | } | |
5595 | ||
5596 | void | |
5597 | spu_restore_stack_nonlocal (rtx op0 ATTRIBUTE_UNUSED, rtx op1) | |
5598 | { | |
5599 | static unsigned char arr[16] = | |
5600 | { 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3 }; | |
5601 | rtx temp = gen_reg_rtx (SImode); | |
5602 | rtx temp2 = gen_reg_rtx (SImode); | |
5603 | rtx temp3 = gen_reg_rtx (V4SImode); | |
5604 | rtx temp4 = gen_reg_rtx (V4SImode); | |
5605 | rtx pat = gen_reg_rtx (TImode); | |
5606 | rtx sp = gen_rtx_REG (V4SImode, STACK_POINTER_REGNUM); | |
5607 | ||
5608 | /* Restore the backchain from the first word, sp from the second. */ | |
5609 | emit_move_insn (temp2, adjust_address_nv (op1, SImode, 0)); | |
5610 | emit_move_insn (temp, adjust_address_nv (op1, SImode, 4)); | |
5611 | ||
5612 | emit_move_insn (pat, array_to_constant (TImode, arr)); | |
5613 | ||
5614 | /* Compute Available Stack Size for sp */ | |
5615 | emit_insn (gen_subsi3 (temp, temp, stack_pointer_rtx)); | |
5616 | emit_insn (gen_shufb (temp3, temp, temp, pat)); | |
5617 | ||
5618 | /* Compute Available Stack Size for back chain */ | |
5619 | emit_insn (gen_subsi3 (temp2, temp2, stack_pointer_rtx)); | |
5620 | emit_insn (gen_shufb (temp4, temp2, temp2, pat)); | |
5621 | emit_insn (gen_addv4si3 (temp4, sp, temp4)); | |
5622 | ||
5623 | emit_insn (gen_addv4si3 (sp, sp, temp3)); | |
5624 | emit_move_insn (gen_frame_mem (V4SImode, stack_pointer_rtx), temp4); | |
5625 | } | |
5626 | ||
5627 | static void | |
5628 | spu_init_libfuncs (void) | |
5629 | { | |
5630 | set_optab_libfunc (smul_optab, DImode, "__muldi3"); | |
5631 | set_optab_libfunc (sdiv_optab, DImode, "__divdi3"); | |
5632 | set_optab_libfunc (smod_optab, DImode, "__moddi3"); | |
5633 | set_optab_libfunc (udiv_optab, DImode, "__udivdi3"); | |
5634 | set_optab_libfunc (umod_optab, DImode, "__umoddi3"); | |
5635 | set_optab_libfunc (udivmod_optab, DImode, "__udivmoddi4"); | |
5636 | set_optab_libfunc (ffs_optab, DImode, "__ffsdi2"); | |
5637 | set_optab_libfunc (clz_optab, DImode, "__clzdi2"); | |
5638 | set_optab_libfunc (ctz_optab, DImode, "__ctzdi2"); | |
5639 | set_optab_libfunc (popcount_optab, DImode, "__popcountdi2"); | |
5640 | set_optab_libfunc (parity_optab, DImode, "__paritydi2"); | |
5641 | ||
5642 | set_conv_libfunc (ufloat_optab, DFmode, SImode, "__float_unssidf"); | |
5643 | set_conv_libfunc (ufloat_optab, DFmode, DImode, "__float_unsdidf"); | |
19a53068 | 5644 | |
5825ec3f | 5645 | set_optab_libfunc (addv_optab, SImode, "__addvsi3"); |
5646 | set_optab_libfunc (subv_optab, SImode, "__subvsi3"); | |
5647 | set_optab_libfunc (smulv_optab, SImode, "__mulvsi3"); | |
5648 | set_optab_libfunc (sdivv_optab, SImode, "__divvsi3"); | |
5649 | set_optab_libfunc (negv_optab, SImode, "__negvsi2"); | |
5650 | set_optab_libfunc (absv_optab, SImode, "__absvsi2"); | |
5651 | set_optab_libfunc (addv_optab, DImode, "__addvdi3"); | |
5652 | set_optab_libfunc (subv_optab, DImode, "__subvdi3"); | |
5653 | set_optab_libfunc (smulv_optab, DImode, "__mulvdi3"); | |
5654 | set_optab_libfunc (sdivv_optab, DImode, "__divvdi3"); | |
5655 | set_optab_libfunc (negv_optab, DImode, "__negvdi2"); | |
5656 | set_optab_libfunc (absv_optab, DImode, "__absvdi2"); | |
5657 | ||
19a53068 | 5658 | set_optab_libfunc (smul_optab, TImode, "__multi3"); |
5659 | set_optab_libfunc (sdiv_optab, TImode, "__divti3"); | |
5660 | set_optab_libfunc (smod_optab, TImode, "__modti3"); | |
5661 | set_optab_libfunc (udiv_optab, TImode, "__udivti3"); | |
5662 | set_optab_libfunc (umod_optab, TImode, "__umodti3"); | |
5663 | set_optab_libfunc (udivmod_optab, TImode, "__udivmodti4"); | |
644459d0 | 5664 | } |
5665 | ||
5666 | /* Make a subreg, stripping any existing subreg. We could possibly just | |
5667 | call simplify_subreg, but in this case we know what we want. */ | |
5668 | rtx | |
5669 | spu_gen_subreg (enum machine_mode mode, rtx x) | |
5670 | { | |
5671 | if (GET_CODE (x) == SUBREG) | |
5672 | x = SUBREG_REG (x); | |
5673 | if (GET_MODE (x) == mode) | |
5674 | return x; | |
5675 | return gen_rtx_SUBREG (mode, x, 0); | |
5676 | } | |
5677 | ||
5678 | static bool | |
fb80456a | 5679 | spu_return_in_memory (const_tree type, const_tree fntype ATTRIBUTE_UNUSED) |
644459d0 | 5680 | { |
5681 | return (TYPE_MODE (type) == BLKmode | |
5682 | && ((type) == 0 | |
5683 | || TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST | |
5684 | || int_size_in_bytes (type) > | |
5685 | (MAX_REGISTER_RETURN * UNITS_PER_WORD))); | |
5686 | } | |
5687 | \f | |
5688 | /* Create the built-in types and functions */ | |
5689 | ||
c2233b46 | 5690 | enum spu_function_code |
5691 | { | |
5692 | #define DEF_BUILTIN(fcode, icode, name, type, params) fcode, | |
5693 | #include "spu-builtins.def" | |
5694 | #undef DEF_BUILTIN | |
5695 | NUM_SPU_BUILTINS | |
5696 | }; | |
5697 | ||
5698 | extern GTY(()) struct spu_builtin_description spu_builtins[NUM_SPU_BUILTINS]; | |
5699 | ||
644459d0 | 5700 | struct spu_builtin_description spu_builtins[] = { |
5701 | #define DEF_BUILTIN(fcode, icode, name, type, params) \ | |
0c5c4d59 | 5702 | {fcode, icode, name, type, params}, |
644459d0 | 5703 | #include "spu-builtins.def" |
5704 | #undef DEF_BUILTIN | |
5705 | }; | |
5706 | ||
0c5c4d59 | 5707 | static GTY(()) tree spu_builtin_decls[NUM_SPU_BUILTINS]; |
5708 | ||
5709 | /* Returns the spu builtin decl for CODE. */ | |
e6925042 | 5710 | |
5711 | static tree | |
5712 | spu_builtin_decl (unsigned code, bool initialize_p ATTRIBUTE_UNUSED) | |
5713 | { | |
5714 | if (code >= NUM_SPU_BUILTINS) | |
5715 | return error_mark_node; | |
5716 | ||
0c5c4d59 | 5717 | return spu_builtin_decls[code]; |
e6925042 | 5718 | } |
5719 | ||
5720 | ||
644459d0 | 5721 | static void |
5722 | spu_init_builtins (void) | |
5723 | { | |
5724 | struct spu_builtin_description *d; | |
5725 | unsigned int i; | |
5726 | ||
5727 | V16QI_type_node = build_vector_type (intQI_type_node, 16); | |
5728 | V8HI_type_node = build_vector_type (intHI_type_node, 8); | |
5729 | V4SI_type_node = build_vector_type (intSI_type_node, 4); | |
5730 | V2DI_type_node = build_vector_type (intDI_type_node, 2); | |
5731 | V4SF_type_node = build_vector_type (float_type_node, 4); | |
5732 | V2DF_type_node = build_vector_type (double_type_node, 2); | |
5733 | ||
5734 | unsigned_V16QI_type_node = build_vector_type (unsigned_intQI_type_node, 16); | |
5735 | unsigned_V8HI_type_node = build_vector_type (unsigned_intHI_type_node, 8); | |
5736 | unsigned_V4SI_type_node = build_vector_type (unsigned_intSI_type_node, 4); | |
5737 | unsigned_V2DI_type_node = build_vector_type (unsigned_intDI_type_node, 2); | |
5738 | ||
c4ecce0c | 5739 | spu_builtin_types[SPU_BTI_QUADWORD] = V16QI_type_node; |
644459d0 | 5740 | |
5741 | spu_builtin_types[SPU_BTI_7] = global_trees[TI_INTSI_TYPE]; | |
5742 | spu_builtin_types[SPU_BTI_S7] = global_trees[TI_INTSI_TYPE]; | |
5743 | spu_builtin_types[SPU_BTI_U7] = global_trees[TI_INTSI_TYPE]; | |
5744 | spu_builtin_types[SPU_BTI_S10] = global_trees[TI_INTSI_TYPE]; | |
5745 | spu_builtin_types[SPU_BTI_S10_4] = global_trees[TI_INTSI_TYPE]; | |
5746 | spu_builtin_types[SPU_BTI_U14] = global_trees[TI_INTSI_TYPE]; | |
5747 | spu_builtin_types[SPU_BTI_16] = global_trees[TI_INTSI_TYPE]; | |
5748 | spu_builtin_types[SPU_BTI_S16] = global_trees[TI_INTSI_TYPE]; | |
5749 | spu_builtin_types[SPU_BTI_S16_2] = global_trees[TI_INTSI_TYPE]; | |
5750 | spu_builtin_types[SPU_BTI_U16] = global_trees[TI_INTSI_TYPE]; | |
5751 | spu_builtin_types[SPU_BTI_U16_2] = global_trees[TI_INTSI_TYPE]; | |
5752 | spu_builtin_types[SPU_BTI_U18] = global_trees[TI_INTSI_TYPE]; | |
5753 | ||
5754 | spu_builtin_types[SPU_BTI_INTQI] = global_trees[TI_INTQI_TYPE]; | |
5755 | spu_builtin_types[SPU_BTI_INTHI] = global_trees[TI_INTHI_TYPE]; | |
5756 | spu_builtin_types[SPU_BTI_INTSI] = global_trees[TI_INTSI_TYPE]; | |
5757 | spu_builtin_types[SPU_BTI_INTDI] = global_trees[TI_INTDI_TYPE]; | |
5758 | spu_builtin_types[SPU_BTI_UINTQI] = global_trees[TI_UINTQI_TYPE]; | |
5759 | spu_builtin_types[SPU_BTI_UINTHI] = global_trees[TI_UINTHI_TYPE]; | |
5760 | spu_builtin_types[SPU_BTI_UINTSI] = global_trees[TI_UINTSI_TYPE]; | |
5761 | spu_builtin_types[SPU_BTI_UINTDI] = global_trees[TI_UINTDI_TYPE]; | |
5762 | ||
5763 | spu_builtin_types[SPU_BTI_FLOAT] = global_trees[TI_FLOAT_TYPE]; | |
5764 | spu_builtin_types[SPU_BTI_DOUBLE] = global_trees[TI_DOUBLE_TYPE]; | |
5765 | ||
5766 | spu_builtin_types[SPU_BTI_VOID] = global_trees[TI_VOID_TYPE]; | |
5767 | ||
5768 | spu_builtin_types[SPU_BTI_PTR] = | |
5769 | build_pointer_type (build_qualified_type | |
5770 | (void_type_node, | |
5771 | TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE)); | |
5772 | ||
5773 | /* For each builtin we build a new prototype. The tree code will make | |
5774 | sure nodes are shared. */ | |
5775 | for (i = 0, d = spu_builtins; i < NUM_SPU_BUILTINS; i++, d++) | |
5776 | { | |
5777 | tree p; | |
5778 | char name[64]; /* build_function will make a copy. */ | |
5779 | int parm; | |
5780 | ||
5781 | if (d->name == 0) | |
5782 | continue; | |
5783 | ||
5dfbd18f | 5784 | /* Find last parm. */ |
644459d0 | 5785 | for (parm = 1; d->parm[parm] != SPU_BTI_END_OF_PARAMS; parm++) |
5dfbd18f | 5786 | ; |
644459d0 | 5787 | |
5788 | p = void_list_node; | |
5789 | while (parm > 1) | |
5790 | p = tree_cons (NULL_TREE, spu_builtin_types[d->parm[--parm]], p); | |
5791 | ||
5792 | p = build_function_type (spu_builtin_types[d->parm[0]], p); | |
5793 | ||
5794 | sprintf (name, "__builtin_%s", d->name); | |
0c5c4d59 | 5795 | spu_builtin_decls[i] = |
3726fe5e | 5796 | add_builtin_function (name, p, i, BUILT_IN_MD, NULL, NULL_TREE); |
a76866d3 | 5797 | if (d->fcode == SPU_MASK_FOR_LOAD) |
0c5c4d59 | 5798 | TREE_READONLY (spu_builtin_decls[i]) = 1; |
5dfbd18f | 5799 | |
5800 | /* These builtins don't throw. */ | |
0c5c4d59 | 5801 | TREE_NOTHROW (spu_builtin_decls[i]) = 1; |
644459d0 | 5802 | } |
5803 | } | |
5804 | ||
cf31d486 | 5805 | void |
5806 | spu_restore_stack_block (rtx op0 ATTRIBUTE_UNUSED, rtx op1) | |
5807 | { | |
5808 | static unsigned char arr[16] = | |
5809 | { 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3 }; | |
5810 | ||
5811 | rtx temp = gen_reg_rtx (Pmode); | |
5812 | rtx temp2 = gen_reg_rtx (V4SImode); | |
5813 | rtx temp3 = gen_reg_rtx (V4SImode); | |
5814 | rtx pat = gen_reg_rtx (TImode); | |
5815 | rtx sp = gen_rtx_REG (V4SImode, STACK_POINTER_REGNUM); | |
5816 | ||
5817 | emit_move_insn (pat, array_to_constant (TImode, arr)); | |
5818 | ||
5819 | /* Restore the sp. */ | |
5820 | emit_move_insn (temp, op1); | |
5821 | emit_move_insn (temp2, gen_frame_mem (V4SImode, stack_pointer_rtx)); | |
5822 | ||
5823 | /* Compute available stack size for sp. */ | |
5824 | emit_insn (gen_subsi3 (temp, temp, stack_pointer_rtx)); | |
5825 | emit_insn (gen_shufb (temp3, temp, temp, pat)); | |
5826 | ||
5827 | emit_insn (gen_addv4si3 (sp, sp, temp3)); | |
5828 | emit_move_insn (gen_frame_mem (V4SImode, stack_pointer_rtx), temp2); | |
5829 | } | |
5830 | ||
644459d0 | 5831 | int |
5832 | spu_safe_dma (HOST_WIDE_INT channel) | |
5833 | { | |
006e4b96 | 5834 | return TARGET_SAFE_DMA && channel >= 21 && channel <= 27; |
644459d0 | 5835 | } |
5836 | ||
5837 | void | |
5838 | spu_builtin_splats (rtx ops[]) | |
5839 | { | |
5840 | enum machine_mode mode = GET_MODE (ops[0]); | |
5841 | if (GET_CODE (ops[1]) == CONST_INT || GET_CODE (ops[1]) == CONST_DOUBLE) | |
5842 | { | |
5843 | unsigned char arr[16]; | |
5844 | constant_to_array (GET_MODE_INNER (mode), ops[1], arr); | |
5845 | emit_move_insn (ops[0], array_to_constant (mode, arr)); | |
5846 | } | |
644459d0 | 5847 | else |
5848 | { | |
5849 | rtx reg = gen_reg_rtx (TImode); | |
5850 | rtx shuf; | |
5851 | if (GET_CODE (ops[1]) != REG | |
5852 | && GET_CODE (ops[1]) != SUBREG) | |
5853 | ops[1] = force_reg (GET_MODE_INNER (mode), ops[1]); | |
5854 | switch (mode) | |
5855 | { | |
5856 | case V2DImode: | |
5857 | case V2DFmode: | |
5858 | shuf = | |
5859 | immed_double_const (0x0001020304050607ll, 0x1011121314151617ll, | |
5860 | TImode); | |
5861 | break; | |
5862 | case V4SImode: | |
5863 | case V4SFmode: | |
5864 | shuf = | |
5865 | immed_double_const (0x0001020300010203ll, 0x0001020300010203ll, | |
5866 | TImode); | |
5867 | break; | |
5868 | case V8HImode: | |
5869 | shuf = | |
5870 | immed_double_const (0x0203020302030203ll, 0x0203020302030203ll, | |
5871 | TImode); | |
5872 | break; | |
5873 | case V16QImode: | |
5874 | shuf = | |
5875 | immed_double_const (0x0303030303030303ll, 0x0303030303030303ll, | |
5876 | TImode); | |
5877 | break; | |
5878 | default: | |
5879 | abort (); | |
5880 | } | |
5881 | emit_move_insn (reg, shuf); | |
5882 | emit_insn (gen_shufb (ops[0], ops[1], ops[1], reg)); | |
5883 | } | |
5884 | } | |
5885 | ||
5886 | void | |
5887 | spu_builtin_extract (rtx ops[]) | |
5888 | { | |
5889 | enum machine_mode mode; | |
5890 | rtx rot, from, tmp; | |
5891 | ||
5892 | mode = GET_MODE (ops[1]); | |
5893 | ||
5894 | if (GET_CODE (ops[2]) == CONST_INT) | |
5895 | { | |
5896 | switch (mode) | |
5897 | { | |
5898 | case V16QImode: | |
5899 | emit_insn (gen_vec_extractv16qi (ops[0], ops[1], ops[2])); | |
5900 | break; | |
5901 | case V8HImode: | |
5902 | emit_insn (gen_vec_extractv8hi (ops[0], ops[1], ops[2])); | |
5903 | break; | |
5904 | case V4SFmode: | |
5905 | emit_insn (gen_vec_extractv4sf (ops[0], ops[1], ops[2])); | |
5906 | break; | |
5907 | case V4SImode: | |
5908 | emit_insn (gen_vec_extractv4si (ops[0], ops[1], ops[2])); | |
5909 | break; | |
5910 | case V2DImode: | |
5911 | emit_insn (gen_vec_extractv2di (ops[0], ops[1], ops[2])); | |
5912 | break; | |
5913 | case V2DFmode: | |
5914 | emit_insn (gen_vec_extractv2df (ops[0], ops[1], ops[2])); | |
5915 | break; | |
5916 | default: | |
5917 | abort (); | |
5918 | } | |
5919 | return; | |
5920 | } | |
5921 | ||
5922 | from = spu_gen_subreg (TImode, ops[1]); | |
5923 | rot = gen_reg_rtx (TImode); | |
5924 | tmp = gen_reg_rtx (SImode); | |
5925 | ||
5926 | switch (mode) | |
5927 | { | |
5928 | case V16QImode: | |
5929 | emit_insn (gen_addsi3 (tmp, ops[2], GEN_INT (-3))); | |
5930 | break; | |
5931 | case V8HImode: | |
5932 | emit_insn (gen_addsi3 (tmp, ops[2], ops[2])); | |
5933 | emit_insn (gen_addsi3 (tmp, tmp, GEN_INT (-2))); | |
5934 | break; | |
5935 | case V4SFmode: | |
5936 | case V4SImode: | |
5937 | emit_insn (gen_ashlsi3 (tmp, ops[2], GEN_INT (2))); | |
5938 | break; | |
5939 | case V2DImode: | |
5940 | case V2DFmode: | |
5941 | emit_insn (gen_ashlsi3 (tmp, ops[2], GEN_INT (3))); | |
5942 | break; | |
5943 | default: | |
5944 | abort (); | |
5945 | } | |
5946 | emit_insn (gen_rotqby_ti (rot, from, tmp)); | |
5947 | ||
5948 | emit_insn (gen_spu_convert (ops[0], rot)); | |
5949 | } | |
5950 | ||
5951 | void | |
5952 | spu_builtin_insert (rtx ops[]) | |
5953 | { | |
5954 | enum machine_mode mode = GET_MODE (ops[0]); | |
5955 | enum machine_mode imode = GET_MODE_INNER (mode); | |
5956 | rtx mask = gen_reg_rtx (TImode); | |
5957 | rtx offset; | |
5958 | ||
5959 | if (GET_CODE (ops[3]) == CONST_INT) | |
5960 | offset = GEN_INT (INTVAL (ops[3]) * GET_MODE_SIZE (imode)); | |
5961 | else | |
5962 | { | |
5963 | offset = gen_reg_rtx (SImode); | |
5964 | emit_insn (gen_mulsi3 | |
5965 | (offset, ops[3], GEN_INT (GET_MODE_SIZE (imode)))); | |
5966 | } | |
5967 | emit_insn (gen_cpat | |
5968 | (mask, stack_pointer_rtx, offset, | |
5969 | GEN_INT (GET_MODE_SIZE (imode)))); | |
5970 | emit_insn (gen_shufb (ops[0], ops[1], ops[2], mask)); | |
5971 | } | |
5972 | ||
5973 | void | |
5974 | spu_builtin_promote (rtx ops[]) | |
5975 | { | |
5976 | enum machine_mode mode, imode; | |
5977 | rtx rot, from, offset; | |
5978 | HOST_WIDE_INT pos; | |
5979 | ||
5980 | mode = GET_MODE (ops[0]); | |
5981 | imode = GET_MODE_INNER (mode); | |
5982 | ||
5983 | from = gen_reg_rtx (TImode); | |
5984 | rot = spu_gen_subreg (TImode, ops[0]); | |
5985 | ||
5986 | emit_insn (gen_spu_convert (from, ops[1])); | |
5987 | ||
5988 | if (GET_CODE (ops[2]) == CONST_INT) | |
5989 | { | |
5990 | pos = -GET_MODE_SIZE (imode) * INTVAL (ops[2]); | |
5991 | if (GET_MODE_SIZE (imode) < 4) | |
5992 | pos += 4 - GET_MODE_SIZE (imode); | |
5993 | offset = GEN_INT (pos & 15); | |
5994 | } | |
5995 | else | |
5996 | { | |
5997 | offset = gen_reg_rtx (SImode); | |
5998 | switch (mode) | |
5999 | { | |
6000 | case V16QImode: | |
6001 | emit_insn (gen_subsi3 (offset, GEN_INT (3), ops[2])); | |
6002 | break; | |
6003 | case V8HImode: | |
6004 | emit_insn (gen_subsi3 (offset, GEN_INT (1), ops[2])); | |
6005 | emit_insn (gen_addsi3 (offset, offset, offset)); | |
6006 | break; | |
6007 | case V4SFmode: | |
6008 | case V4SImode: | |
6009 | emit_insn (gen_subsi3 (offset, GEN_INT (0), ops[2])); | |
6010 | emit_insn (gen_ashlsi3 (offset, offset, GEN_INT (2))); | |
6011 | break; | |
6012 | case V2DImode: | |
6013 | case V2DFmode: | |
6014 | emit_insn (gen_ashlsi3 (offset, ops[2], GEN_INT (3))); | |
6015 | break; | |
6016 | default: | |
6017 | abort (); | |
6018 | } | |
6019 | } | |
6020 | emit_insn (gen_rotqby_ti (rot, from, offset)); | |
6021 | } | |
6022 | ||
e96f2783 | 6023 | static void |
6024 | spu_trampoline_init (rtx m_tramp, tree fndecl, rtx cxt) | |
644459d0 | 6025 | { |
e96f2783 | 6026 | rtx fnaddr = XEXP (DECL_RTL (fndecl), 0); |
644459d0 | 6027 | rtx shuf = gen_reg_rtx (V4SImode); |
6028 | rtx insn = gen_reg_rtx (V4SImode); | |
6029 | rtx shufc; | |
6030 | rtx insnc; | |
6031 | rtx mem; | |
6032 | ||
6033 | fnaddr = force_reg (SImode, fnaddr); | |
6034 | cxt = force_reg (SImode, cxt); | |
6035 | ||
6036 | if (TARGET_LARGE_MEM) | |
6037 | { | |
6038 | rtx rotl = gen_reg_rtx (V4SImode); | |
6039 | rtx mask = gen_reg_rtx (V4SImode); | |
6040 | rtx bi = gen_reg_rtx (SImode); | |
e96f2783 | 6041 | static unsigned char const shufa[16] = { |
644459d0 | 6042 | 2, 3, 0, 1, 18, 19, 16, 17, |
6043 | 0, 1, 2, 3, 16, 17, 18, 19 | |
6044 | }; | |
e96f2783 | 6045 | static unsigned char const insna[16] = { |
644459d0 | 6046 | 0x41, 0, 0, 79, |
6047 | 0x41, 0, 0, STATIC_CHAIN_REGNUM, | |
6048 | 0x60, 0x80, 0, 79, | |
6049 | 0x60, 0x80, 0, STATIC_CHAIN_REGNUM | |
6050 | }; | |
6051 | ||
6052 | shufc = force_reg (TImode, array_to_constant (TImode, shufa)); | |
6053 | insnc = force_reg (V4SImode, array_to_constant (V4SImode, insna)); | |
6054 | ||
6055 | emit_insn (gen_shufb (shuf, fnaddr, cxt, shufc)); | |
4d54df85 | 6056 | emit_insn (gen_vrotlv4si3 (rotl, shuf, spu_const (V4SImode, 7))); |
644459d0 | 6057 | emit_insn (gen_movv4si (mask, spu_const (V4SImode, 0xffff << 7))); |
6058 | emit_insn (gen_selb (insn, insnc, rotl, mask)); | |
6059 | ||
e96f2783 | 6060 | mem = adjust_address (m_tramp, V4SImode, 0); |
6061 | emit_move_insn (mem, insn); | |
644459d0 | 6062 | |
6063 | emit_move_insn (bi, GEN_INT (0x35000000 + (79 << 7))); | |
e96f2783 | 6064 | mem = adjust_address (m_tramp, Pmode, 16); |
6065 | emit_move_insn (mem, bi); | |
644459d0 | 6066 | } |
6067 | else | |
6068 | { | |
6069 | rtx scxt = gen_reg_rtx (SImode); | |
6070 | rtx sfnaddr = gen_reg_rtx (SImode); | |
e96f2783 | 6071 | static unsigned char const insna[16] = { |
644459d0 | 6072 | 0x42, 0, 0, STATIC_CHAIN_REGNUM, |
6073 | 0x30, 0, 0, 0, | |
6074 | 0, 0, 0, 0, | |
6075 | 0, 0, 0, 0 | |
6076 | }; | |
6077 | ||
6078 | shufc = gen_reg_rtx (TImode); | |
6079 | insnc = force_reg (V4SImode, array_to_constant (V4SImode, insna)); | |
6080 | ||
6081 | /* By or'ing all of cxt with the ila opcode we are assuming cxt | |
6082 | fits 18 bits and the last 4 are zeros. This will be true if | |
6083 | the stack pointer is initialized to 0x3fff0 at program start, | |
6084 | otherwise the ila instruction will be garbage. */ | |
6085 | ||
6086 | emit_insn (gen_ashlsi3 (scxt, cxt, GEN_INT (7))); | |
6087 | emit_insn (gen_ashlsi3 (sfnaddr, fnaddr, GEN_INT (5))); | |
6088 | emit_insn (gen_cpat | |
6089 | (shufc, stack_pointer_rtx, GEN_INT (4), GEN_INT (4))); | |
6090 | emit_insn (gen_shufb (shuf, sfnaddr, scxt, shufc)); | |
6091 | emit_insn (gen_iorv4si3 (insn, insnc, shuf)); | |
6092 | ||
e96f2783 | 6093 | mem = adjust_address (m_tramp, V4SImode, 0); |
6094 | emit_move_insn (mem, insn); | |
644459d0 | 6095 | } |
6096 | emit_insn (gen_sync ()); | |
6097 | } | |
6098 | ||
6099 | void | |
6100 | spu_expand_sign_extend (rtx ops[]) | |
6101 | { | |
6102 | unsigned char arr[16]; | |
6103 | rtx pat = gen_reg_rtx (TImode); | |
6104 | rtx sign, c; | |
6105 | int i, last; | |
6106 | last = GET_MODE (ops[0]) == DImode ? 7 : 15; | |
6107 | if (GET_MODE (ops[1]) == QImode) | |
6108 | { | |
6109 | sign = gen_reg_rtx (HImode); | |
6110 | emit_insn (gen_extendqihi2 (sign, ops[1])); | |
6111 | for (i = 0; i < 16; i++) | |
6112 | arr[i] = 0x12; | |
6113 | arr[last] = 0x13; | |
6114 | } | |
6115 | else | |
6116 | { | |
6117 | for (i = 0; i < 16; i++) | |
6118 | arr[i] = 0x10; | |
6119 | switch (GET_MODE (ops[1])) | |
6120 | { | |
6121 | case HImode: | |
6122 | sign = gen_reg_rtx (SImode); | |
6123 | emit_insn (gen_extendhisi2 (sign, ops[1])); | |
6124 | arr[last] = 0x03; | |
6125 | arr[last - 1] = 0x02; | |
6126 | break; | |
6127 | case SImode: | |
6128 | sign = gen_reg_rtx (SImode); | |
6129 | emit_insn (gen_ashrsi3 (sign, ops[1], GEN_INT (31))); | |
6130 | for (i = 0; i < 4; i++) | |
6131 | arr[last - i] = 3 - i; | |
6132 | break; | |
6133 | case DImode: | |
6134 | sign = gen_reg_rtx (SImode); | |
6135 | c = gen_reg_rtx (SImode); | |
6136 | emit_insn (gen_spu_convert (c, ops[1])); | |
6137 | emit_insn (gen_ashrsi3 (sign, c, GEN_INT (31))); | |
6138 | for (i = 0; i < 8; i++) | |
6139 | arr[last - i] = 7 - i; | |
6140 | break; | |
6141 | default: | |
6142 | abort (); | |
6143 | } | |
6144 | } | |
6145 | emit_move_insn (pat, array_to_constant (TImode, arr)); | |
6146 | emit_insn (gen_shufb (ops[0], ops[1], sign, pat)); | |
6147 | } | |
6148 | ||
6149 | /* expand vector initialization. If there are any constant parts, | |
6150 | load constant parts first. Then load any non-constant parts. */ | |
6151 | void | |
6152 | spu_expand_vector_init (rtx target, rtx vals) | |
6153 | { | |
6154 | enum machine_mode mode = GET_MODE (target); | |
6155 | int n_elts = GET_MODE_NUNITS (mode); | |
6156 | int n_var = 0; | |
6157 | bool all_same = true; | |
790c536c | 6158 | rtx first, x = NULL_RTX, first_constant = NULL_RTX; |
644459d0 | 6159 | int i; |
6160 | ||
6161 | first = XVECEXP (vals, 0, 0); | |
6162 | for (i = 0; i < n_elts; ++i) | |
6163 | { | |
6164 | x = XVECEXP (vals, 0, i); | |
e442af0b | 6165 | if (!(CONST_INT_P (x) |
6166 | || GET_CODE (x) == CONST_DOUBLE | |
6167 | || GET_CODE (x) == CONST_FIXED)) | |
644459d0 | 6168 | ++n_var; |
6169 | else | |
6170 | { | |
6171 | if (first_constant == NULL_RTX) | |
6172 | first_constant = x; | |
6173 | } | |
6174 | if (i > 0 && !rtx_equal_p (x, first)) | |
6175 | all_same = false; | |
6176 | } | |
6177 | ||
6178 | /* if all elements are the same, use splats to repeat elements */ | |
6179 | if (all_same) | |
6180 | { | |
6181 | if (!CONSTANT_P (first) | |
6182 | && !register_operand (first, GET_MODE (x))) | |
6183 | first = force_reg (GET_MODE (first), first); | |
6184 | emit_insn (gen_spu_splats (target, first)); | |
6185 | return; | |
6186 | } | |
6187 | ||
6188 | /* load constant parts */ | |
6189 | if (n_var != n_elts) | |
6190 | { | |
6191 | if (n_var == 0) | |
6192 | { | |
6193 | emit_move_insn (target, | |
6194 | gen_rtx_CONST_VECTOR (mode, XVEC (vals, 0))); | |
6195 | } | |
6196 | else | |
6197 | { | |
6198 | rtx constant_parts_rtx = copy_rtx (vals); | |
6199 | ||
6200 | gcc_assert (first_constant != NULL_RTX); | |
6201 | /* fill empty slots with the first constant, this increases | |
6202 | our chance of using splats in the recursive call below. */ | |
6203 | for (i = 0; i < n_elts; ++i) | |
e442af0b | 6204 | { |
6205 | x = XVECEXP (constant_parts_rtx, 0, i); | |
6206 | if (!(CONST_INT_P (x) | |
6207 | || GET_CODE (x) == CONST_DOUBLE | |
6208 | || GET_CODE (x) == CONST_FIXED)) | |
6209 | XVECEXP (constant_parts_rtx, 0, i) = first_constant; | |
6210 | } | |
644459d0 | 6211 | |
6212 | spu_expand_vector_init (target, constant_parts_rtx); | |
6213 | } | |
6214 | } | |
6215 | ||
6216 | /* load variable parts */ | |
6217 | if (n_var != 0) | |
6218 | { | |
6219 | rtx insert_operands[4]; | |
6220 | ||
6221 | insert_operands[0] = target; | |
6222 | insert_operands[2] = target; | |
6223 | for (i = 0; i < n_elts; ++i) | |
6224 | { | |
6225 | x = XVECEXP (vals, 0, i); | |
e442af0b | 6226 | if (!(CONST_INT_P (x) |
6227 | || GET_CODE (x) == CONST_DOUBLE | |
6228 | || GET_CODE (x) == CONST_FIXED)) | |
644459d0 | 6229 | { |
6230 | if (!register_operand (x, GET_MODE (x))) | |
6231 | x = force_reg (GET_MODE (x), x); | |
6232 | insert_operands[1] = x; | |
6233 | insert_operands[3] = GEN_INT (i); | |
6234 | spu_builtin_insert (insert_operands); | |
6235 | } | |
6236 | } | |
6237 | } | |
6238 | } | |
6352eedf | 6239 | |
5474166e | 6240 | /* Return insn index for the vector compare instruction for given CODE, |
6241 | and DEST_MODE, OP_MODE. Return -1 if valid insn is not available. */ | |
6242 | ||
6243 | static int | |
6244 | get_vec_cmp_insn (enum rtx_code code, | |
6245 | enum machine_mode dest_mode, | |
6246 | enum machine_mode op_mode) | |
6247 | ||
6248 | { | |
6249 | switch (code) | |
6250 | { | |
6251 | case EQ: | |
6252 | if (dest_mode == V16QImode && op_mode == V16QImode) | |
6253 | return CODE_FOR_ceq_v16qi; | |
6254 | if (dest_mode == V8HImode && op_mode == V8HImode) | |
6255 | return CODE_FOR_ceq_v8hi; | |
6256 | if (dest_mode == V4SImode && op_mode == V4SImode) | |
6257 | return CODE_FOR_ceq_v4si; | |
6258 | if (dest_mode == V4SImode && op_mode == V4SFmode) | |
6259 | return CODE_FOR_ceq_v4sf; | |
6260 | if (dest_mode == V2DImode && op_mode == V2DFmode) | |
6261 | return CODE_FOR_ceq_v2df; | |
6262 | break; | |
6263 | case GT: | |
6264 | if (dest_mode == V16QImode && op_mode == V16QImode) | |
6265 | return CODE_FOR_cgt_v16qi; | |
6266 | if (dest_mode == V8HImode && op_mode == V8HImode) | |
6267 | return CODE_FOR_cgt_v8hi; | |
6268 | if (dest_mode == V4SImode && op_mode == V4SImode) | |
6269 | return CODE_FOR_cgt_v4si; | |
6270 | if (dest_mode == V4SImode && op_mode == V4SFmode) | |
6271 | return CODE_FOR_cgt_v4sf; | |
6272 | if (dest_mode == V2DImode && op_mode == V2DFmode) | |
6273 | return CODE_FOR_cgt_v2df; | |
6274 | break; | |
6275 | case GTU: | |
6276 | if (dest_mode == V16QImode && op_mode == V16QImode) | |
6277 | return CODE_FOR_clgt_v16qi; | |
6278 | if (dest_mode == V8HImode && op_mode == V8HImode) | |
6279 | return CODE_FOR_clgt_v8hi; | |
6280 | if (dest_mode == V4SImode && op_mode == V4SImode) | |
6281 | return CODE_FOR_clgt_v4si; | |
6282 | break; | |
6283 | default: | |
6284 | break; | |
6285 | } | |
6286 | return -1; | |
6287 | } | |
6288 | ||
6289 | /* Emit vector compare for operands OP0 and OP1 using code RCODE. | |
6290 | DMODE is expected destination mode. This is a recursive function. */ | |
6291 | ||
6292 | static rtx | |
6293 | spu_emit_vector_compare (enum rtx_code rcode, | |
6294 | rtx op0, rtx op1, | |
6295 | enum machine_mode dmode) | |
6296 | { | |
6297 | int vec_cmp_insn; | |
6298 | rtx mask; | |
6299 | enum machine_mode dest_mode; | |
6300 | enum machine_mode op_mode = GET_MODE (op1); | |
6301 | ||
6302 | gcc_assert (GET_MODE (op0) == GET_MODE (op1)); | |
6303 | ||
6304 | /* Floating point vector compare instructions uses destination V4SImode. | |
6305 | Double floating point vector compare instructions uses destination V2DImode. | |
6306 | Move destination to appropriate mode later. */ | |
6307 | if (dmode == V4SFmode) | |
6308 | dest_mode = V4SImode; | |
6309 | else if (dmode == V2DFmode) | |
6310 | dest_mode = V2DImode; | |
6311 | else | |
6312 | dest_mode = dmode; | |
6313 | ||
6314 | mask = gen_reg_rtx (dest_mode); | |
6315 | vec_cmp_insn = get_vec_cmp_insn (rcode, dest_mode, op_mode); | |
6316 | ||
6317 | if (vec_cmp_insn == -1) | |
6318 | { | |
6319 | bool swap_operands = false; | |
6320 | bool try_again = false; | |
6321 | switch (rcode) | |
6322 | { | |
6323 | case LT: | |
6324 | rcode = GT; | |
6325 | swap_operands = true; | |
6326 | try_again = true; | |
6327 | break; | |
6328 | case LTU: | |
6329 | rcode = GTU; | |
6330 | swap_operands = true; | |
6331 | try_again = true; | |
6332 | break; | |
6333 | case NE: | |
6334 | /* Treat A != B as ~(A==B). */ | |
6335 | { | |
6336 | enum insn_code nor_code; | |
6337 | rtx eq_rtx = spu_emit_vector_compare (EQ, op0, op1, dest_mode); | |
d6bf3b14 | 6338 | nor_code = optab_handler (one_cmpl_optab, dest_mode); |
5474166e | 6339 | gcc_assert (nor_code != CODE_FOR_nothing); |
6340 | emit_insn (GEN_FCN (nor_code) (mask, eq_rtx)); | |
6341 | if (dmode != dest_mode) | |
6342 | { | |
6343 | rtx temp = gen_reg_rtx (dest_mode); | |
6344 | convert_move (temp, mask, 0); | |
6345 | return temp; | |
6346 | } | |
6347 | return mask; | |
6348 | } | |
6349 | break; | |
6350 | case GE: | |
6351 | case GEU: | |
6352 | case LE: | |
6353 | case LEU: | |
6354 | /* Try GT/GTU/LT/LTU OR EQ */ | |
6355 | { | |
6356 | rtx c_rtx, eq_rtx; | |
6357 | enum insn_code ior_code; | |
6358 | enum rtx_code new_code; | |
6359 | ||
6360 | switch (rcode) | |
6361 | { | |
6362 | case GE: new_code = GT; break; | |
6363 | case GEU: new_code = GTU; break; | |
6364 | case LE: new_code = LT; break; | |
6365 | case LEU: new_code = LTU; break; | |
6366 | default: | |
6367 | gcc_unreachable (); | |
6368 | } | |
6369 | ||
6370 | c_rtx = spu_emit_vector_compare (new_code, op0, op1, dest_mode); | |
6371 | eq_rtx = spu_emit_vector_compare (EQ, op0, op1, dest_mode); | |
6372 | ||
d6bf3b14 | 6373 | ior_code = optab_handler (ior_optab, dest_mode); |
5474166e | 6374 | gcc_assert (ior_code != CODE_FOR_nothing); |
6375 | emit_insn (GEN_FCN (ior_code) (mask, c_rtx, eq_rtx)); | |
6376 | if (dmode != dest_mode) | |
6377 | { | |
6378 | rtx temp = gen_reg_rtx (dest_mode); | |
6379 | convert_move (temp, mask, 0); | |
6380 | return temp; | |
6381 | } | |
6382 | return mask; | |
6383 | } | |
6384 | break; | |
6385 | default: | |
6386 | gcc_unreachable (); | |
6387 | } | |
6388 | ||
6389 | /* You only get two chances. */ | |
6390 | if (try_again) | |
6391 | vec_cmp_insn = get_vec_cmp_insn (rcode, dest_mode, op_mode); | |
6392 | ||
6393 | gcc_assert (vec_cmp_insn != -1); | |
6394 | ||
6395 | if (swap_operands) | |
6396 | { | |
6397 | rtx tmp; | |
6398 | tmp = op0; | |
6399 | op0 = op1; | |
6400 | op1 = tmp; | |
6401 | } | |
6402 | } | |
6403 | ||
6404 | emit_insn (GEN_FCN (vec_cmp_insn) (mask, op0, op1)); | |
6405 | if (dmode != dest_mode) | |
6406 | { | |
6407 | rtx temp = gen_reg_rtx (dest_mode); | |
6408 | convert_move (temp, mask, 0); | |
6409 | return temp; | |
6410 | } | |
6411 | return mask; | |
6412 | } | |
6413 | ||
6414 | ||
6415 | /* Emit vector conditional expression. | |
6416 | DEST is destination. OP1 and OP2 are two VEC_COND_EXPR operands. | |
6417 | CC_OP0 and CC_OP1 are the two operands for the relation operation COND. */ | |
6418 | ||
6419 | int | |
6420 | spu_emit_vector_cond_expr (rtx dest, rtx op1, rtx op2, | |
6421 | rtx cond, rtx cc_op0, rtx cc_op1) | |
6422 | { | |
6423 | enum machine_mode dest_mode = GET_MODE (dest); | |
6424 | enum rtx_code rcode = GET_CODE (cond); | |
6425 | rtx mask; | |
6426 | ||
6427 | /* Get the vector mask for the given relational operations. */ | |
6428 | mask = spu_emit_vector_compare (rcode, cc_op0, cc_op1, dest_mode); | |
6429 | ||
6430 | emit_insn(gen_selb (dest, op2, op1, mask)); | |
6431 | ||
6432 | return 1; | |
6433 | } | |
6434 | ||
6352eedf | 6435 | static rtx |
6436 | spu_force_reg (enum machine_mode mode, rtx op) | |
6437 | { | |
6438 | rtx x, r; | |
6439 | if (GET_MODE (op) == VOIDmode || GET_MODE (op) == BLKmode) | |
6440 | { | |
6441 | if ((SCALAR_INT_MODE_P (mode) && GET_CODE (op) == CONST_INT) | |
6442 | || GET_MODE (op) == BLKmode) | |
6443 | return force_reg (mode, convert_to_mode (mode, op, 0)); | |
6444 | abort (); | |
6445 | } | |
6446 | ||
6447 | r = force_reg (GET_MODE (op), op); | |
6448 | if (GET_MODE_SIZE (GET_MODE (op)) == GET_MODE_SIZE (mode)) | |
6449 | { | |
6450 | x = simplify_gen_subreg (mode, r, GET_MODE (op), 0); | |
6451 | if (x) | |
6452 | return x; | |
6453 | } | |
6454 | ||
6455 | x = gen_reg_rtx (mode); | |
6456 | emit_insn (gen_spu_convert (x, r)); | |
6457 | return x; | |
6458 | } | |
6459 | ||
6460 | static void | |
6461 | spu_check_builtin_parm (struct spu_builtin_description *d, rtx op, int p) | |
6462 | { | |
6463 | HOST_WIDE_INT v = 0; | |
6464 | int lsbits; | |
6465 | /* Check the range of immediate operands. */ | |
6466 | if (p >= SPU_BTI_7 && p <= SPU_BTI_U18) | |
6467 | { | |
6468 | int range = p - SPU_BTI_7; | |
5df189be | 6469 | |
6470 | if (!CONSTANT_P (op)) | |
bf776685 | 6471 | error ("%s expects an integer literal in the range [%d, %d]", |
6352eedf | 6472 | d->name, |
6473 | spu_builtin_range[range].low, spu_builtin_range[range].high); | |
6474 | ||
6475 | if (GET_CODE (op) == CONST | |
6476 | && (GET_CODE (XEXP (op, 0)) == PLUS | |
6477 | || GET_CODE (XEXP (op, 0)) == MINUS)) | |
6478 | { | |
6479 | v = INTVAL (XEXP (XEXP (op, 0), 1)); | |
6480 | op = XEXP (XEXP (op, 0), 0); | |
6481 | } | |
6482 | else if (GET_CODE (op) == CONST_INT) | |
6483 | v = INTVAL (op); | |
5df189be | 6484 | else if (GET_CODE (op) == CONST_VECTOR |
6485 | && GET_CODE (CONST_VECTOR_ELT (op, 0)) == CONST_INT) | |
6486 | v = INTVAL (CONST_VECTOR_ELT (op, 0)); | |
6487 | ||
6488 | /* The default for v is 0 which is valid in every range. */ | |
6489 | if (v < spu_builtin_range[range].low | |
6490 | || v > spu_builtin_range[range].high) | |
bf776685 | 6491 | error ("%s expects an integer literal in the range [%d, %d]. (%wd)", |
5df189be | 6492 | d->name, |
6493 | spu_builtin_range[range].low, spu_builtin_range[range].high, | |
6494 | v); | |
6352eedf | 6495 | |
6496 | switch (p) | |
6497 | { | |
6498 | case SPU_BTI_S10_4: | |
6499 | lsbits = 4; | |
6500 | break; | |
6501 | case SPU_BTI_U16_2: | |
6502 | /* This is only used in lqa, and stqa. Even though the insns | |
6503 | encode 16 bits of the address (all but the 2 least | |
6504 | significant), only 14 bits are used because it is masked to | |
6505 | be 16 byte aligned. */ | |
6506 | lsbits = 4; | |
6507 | break; | |
6508 | case SPU_BTI_S16_2: | |
6509 | /* This is used for lqr and stqr. */ | |
6510 | lsbits = 2; | |
6511 | break; | |
6512 | default: | |
6513 | lsbits = 0; | |
6514 | } | |
6515 | ||
6516 | if (GET_CODE (op) == LABEL_REF | |
6517 | || (GET_CODE (op) == SYMBOL_REF | |
6518 | && SYMBOL_REF_FUNCTION_P (op)) | |
5df189be | 6519 | || (v & ((1 << lsbits) - 1)) != 0) |
bf776685 | 6520 | warning (0, "%d least significant bits of %s are ignored", lsbits, |
6352eedf | 6521 | d->name); |
6522 | } | |
6523 | } | |
6524 | ||
6525 | ||
70ca06f8 | 6526 | static int |
5df189be | 6527 | expand_builtin_args (struct spu_builtin_description *d, tree exp, |
6352eedf | 6528 | rtx target, rtx ops[]) |
6529 | { | |
bc620c5c | 6530 | enum insn_code icode = (enum insn_code) d->icode; |
5df189be | 6531 | int i = 0, a; |
6352eedf | 6532 | |
6533 | /* Expand the arguments into rtl. */ | |
6534 | ||
6535 | if (d->parm[0] != SPU_BTI_VOID) | |
6536 | ops[i++] = target; | |
6537 | ||
70ca06f8 | 6538 | for (a = 0; d->parm[a+1] != SPU_BTI_END_OF_PARAMS; i++, a++) |
6352eedf | 6539 | { |
5df189be | 6540 | tree arg = CALL_EXPR_ARG (exp, a); |
6352eedf | 6541 | if (arg == 0) |
6542 | abort (); | |
b9c74b4d | 6543 | ops[i] = expand_expr (arg, NULL_RTX, VOIDmode, EXPAND_NORMAL); |
6352eedf | 6544 | } |
70ca06f8 | 6545 | |
32f79657 | 6546 | gcc_assert (i == insn_data[icode].n_generator_args); |
70ca06f8 | 6547 | return i; |
6352eedf | 6548 | } |
6549 | ||
6550 | static rtx | |
6551 | spu_expand_builtin_1 (struct spu_builtin_description *d, | |
5df189be | 6552 | tree exp, rtx target) |
6352eedf | 6553 | { |
6554 | rtx pat; | |
6555 | rtx ops[8]; | |
bc620c5c | 6556 | enum insn_code icode = (enum insn_code) d->icode; |
6352eedf | 6557 | enum machine_mode mode, tmode; |
6558 | int i, p; | |
70ca06f8 | 6559 | int n_operands; |
6352eedf | 6560 | tree return_type; |
6561 | ||
6562 | /* Set up ops[] with values from arglist. */ | |
70ca06f8 | 6563 | n_operands = expand_builtin_args (d, exp, target, ops); |
6352eedf | 6564 | |
6565 | /* Handle the target operand which must be operand 0. */ | |
6566 | i = 0; | |
6567 | if (d->parm[0] != SPU_BTI_VOID) | |
6568 | { | |
6569 | ||
6570 | /* We prefer the mode specified for the match_operand otherwise | |
6571 | use the mode from the builtin function prototype. */ | |
6572 | tmode = insn_data[d->icode].operand[0].mode; | |
6573 | if (tmode == VOIDmode) | |
6574 | tmode = TYPE_MODE (spu_builtin_types[d->parm[0]]); | |
6575 | ||
6576 | /* Try to use target because not using it can lead to extra copies | |
6577 | and when we are using all of the registers extra copies leads | |
6578 | to extra spills. */ | |
6579 | if (target && GET_CODE (target) == REG && GET_MODE (target) == tmode) | |
6580 | ops[0] = target; | |
6581 | else | |
6582 | target = ops[0] = gen_reg_rtx (tmode); | |
6583 | ||
6584 | if (!(*insn_data[icode].operand[0].predicate) (ops[0], tmode)) | |
6585 | abort (); | |
6586 | ||
6587 | i++; | |
6588 | } | |
6589 | ||
a76866d3 | 6590 | if (d->fcode == SPU_MASK_FOR_LOAD) |
6591 | { | |
6592 | enum machine_mode mode = insn_data[icode].operand[1].mode; | |
6593 | tree arg; | |
6594 | rtx addr, op, pat; | |
6595 | ||
6596 | /* get addr */ | |
5df189be | 6597 | arg = CALL_EXPR_ARG (exp, 0); |
4b8ee66a | 6598 | gcc_assert (POINTER_TYPE_P (TREE_TYPE (arg))); |
a76866d3 | 6599 | op = expand_expr (arg, NULL_RTX, Pmode, EXPAND_NORMAL); |
6600 | addr = memory_address (mode, op); | |
6601 | ||
6602 | /* negate addr */ | |
6603 | op = gen_reg_rtx (GET_MODE (addr)); | |
6604 | emit_insn (gen_rtx_SET (VOIDmode, op, | |
6605 | gen_rtx_NEG (GET_MODE (addr), addr))); | |
6606 | op = gen_rtx_MEM (mode, op); | |
6607 | ||
6608 | pat = GEN_FCN (icode) (target, op); | |
6609 | if (!pat) | |
6610 | return 0; | |
6611 | emit_insn (pat); | |
6612 | return target; | |
6613 | } | |
6614 | ||
6352eedf | 6615 | /* Ignore align_hint, but still expand it's args in case they have |
6616 | side effects. */ | |
6617 | if (icode == CODE_FOR_spu_align_hint) | |
6618 | return 0; | |
6619 | ||
6620 | /* Handle the rest of the operands. */ | |
70ca06f8 | 6621 | for (p = 1; i < n_operands; i++, p++) |
6352eedf | 6622 | { |
6623 | if (insn_data[d->icode].operand[i].mode != VOIDmode) | |
6624 | mode = insn_data[d->icode].operand[i].mode; | |
6625 | else | |
6626 | mode = TYPE_MODE (spu_builtin_types[d->parm[i]]); | |
6627 | ||
6628 | /* mode can be VOIDmode here for labels */ | |
6629 | ||
6630 | /* For specific intrinsics with an immediate operand, e.g., | |
6631 | si_ai(), we sometimes need to convert the scalar argument to a | |
6632 | vector argument by splatting the scalar. */ | |
6633 | if (VECTOR_MODE_P (mode) | |
6634 | && (GET_CODE (ops[i]) == CONST_INT | |
6635 | || GET_MODE_CLASS (GET_MODE (ops[i])) == MODE_INT | |
3b442530 | 6636 | || GET_MODE_CLASS (GET_MODE (ops[i])) == MODE_FLOAT)) |
6352eedf | 6637 | { |
6638 | if (GET_CODE (ops[i]) == CONST_INT) | |
6639 | ops[i] = spu_const (mode, INTVAL (ops[i])); | |
6640 | else | |
6641 | { | |
6642 | rtx reg = gen_reg_rtx (mode); | |
6643 | enum machine_mode imode = GET_MODE_INNER (mode); | |
6644 | if (!spu_nonmem_operand (ops[i], GET_MODE (ops[i]))) | |
6645 | ops[i] = force_reg (GET_MODE (ops[i]), ops[i]); | |
6646 | if (imode != GET_MODE (ops[i])) | |
6647 | ops[i] = convert_to_mode (imode, ops[i], | |
6648 | TYPE_UNSIGNED (spu_builtin_types | |
6649 | [d->parm[i]])); | |
6650 | emit_insn (gen_spu_splats (reg, ops[i])); | |
6651 | ops[i] = reg; | |
6652 | } | |
6653 | } | |
6654 | ||
5df189be | 6655 | spu_check_builtin_parm (d, ops[i], d->parm[p]); |
6656 | ||
6352eedf | 6657 | if (!(*insn_data[icode].operand[i].predicate) (ops[i], mode)) |
6658 | ops[i] = spu_force_reg (mode, ops[i]); | |
6352eedf | 6659 | } |
6660 | ||
70ca06f8 | 6661 | switch (n_operands) |
6352eedf | 6662 | { |
6663 | case 0: | |
6664 | pat = GEN_FCN (icode) (0); | |
6665 | break; | |
6666 | case 1: | |
6667 | pat = GEN_FCN (icode) (ops[0]); | |
6668 | break; | |
6669 | case 2: | |
6670 | pat = GEN_FCN (icode) (ops[0], ops[1]); | |
6671 | break; | |
6672 | case 3: | |
6673 | pat = GEN_FCN (icode) (ops[0], ops[1], ops[2]); | |
6674 | break; | |
6675 | case 4: | |
6676 | pat = GEN_FCN (icode) (ops[0], ops[1], ops[2], ops[3]); | |
6677 | break; | |
6678 | case 5: | |
6679 | pat = GEN_FCN (icode) (ops[0], ops[1], ops[2], ops[3], ops[4]); | |
6680 | break; | |
6681 | case 6: | |
6682 | pat = GEN_FCN (icode) (ops[0], ops[1], ops[2], ops[3], ops[4], ops[5]); | |
6683 | break; | |
6684 | default: | |
6685 | abort (); | |
6686 | } | |
6687 | ||
6688 | if (!pat) | |
6689 | abort (); | |
6690 | ||
6691 | if (d->type == B_CALL || d->type == B_BISLED) | |
6692 | emit_call_insn (pat); | |
6693 | else if (d->type == B_JUMP) | |
6694 | { | |
6695 | emit_jump_insn (pat); | |
6696 | emit_barrier (); | |
6697 | } | |
6698 | else | |
6699 | emit_insn (pat); | |
6700 | ||
6701 | return_type = spu_builtin_types[d->parm[0]]; | |
6702 | if (d->parm[0] != SPU_BTI_VOID | |
6703 | && GET_MODE (target) != TYPE_MODE (return_type)) | |
6704 | { | |
6705 | /* target is the return value. It should always be the mode of | |
6706 | the builtin function prototype. */ | |
6707 | target = spu_force_reg (TYPE_MODE (return_type), target); | |
6708 | } | |
6709 | ||
6710 | return target; | |
6711 | } | |
6712 | ||
6713 | rtx | |
6714 | spu_expand_builtin (tree exp, | |
6715 | rtx target, | |
6716 | rtx subtarget ATTRIBUTE_UNUSED, | |
6717 | enum machine_mode mode ATTRIBUTE_UNUSED, | |
6718 | int ignore ATTRIBUTE_UNUSED) | |
6719 | { | |
5df189be | 6720 | tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0); |
3726fe5e | 6721 | unsigned int fcode = DECL_FUNCTION_CODE (fndecl); |
6352eedf | 6722 | struct spu_builtin_description *d; |
6723 | ||
6724 | if (fcode < NUM_SPU_BUILTINS) | |
6725 | { | |
6726 | d = &spu_builtins[fcode]; | |
6727 | ||
5df189be | 6728 | return spu_expand_builtin_1 (d, exp, target); |
6352eedf | 6729 | } |
6730 | abort (); | |
6731 | } | |
6732 | ||
e99f512d | 6733 | /* Implement targetm.vectorize.builtin_mul_widen_even. */ |
6734 | static tree | |
6735 | spu_builtin_mul_widen_even (tree type) | |
6736 | { | |
e99f512d | 6737 | switch (TYPE_MODE (type)) |
6738 | { | |
6739 | case V8HImode: | |
6740 | if (TYPE_UNSIGNED (type)) | |
0c5c4d59 | 6741 | return spu_builtin_decls[SPU_MULE_0]; |
e99f512d | 6742 | else |
0c5c4d59 | 6743 | return spu_builtin_decls[SPU_MULE_1]; |
e99f512d | 6744 | break; |
6745 | default: | |
6746 | return NULL_TREE; | |
6747 | } | |
6748 | } | |
6749 | ||
6750 | /* Implement targetm.vectorize.builtin_mul_widen_odd. */ | |
6751 | static tree | |
6752 | spu_builtin_mul_widen_odd (tree type) | |
6753 | { | |
6754 | switch (TYPE_MODE (type)) | |
6755 | { | |
6756 | case V8HImode: | |
6757 | if (TYPE_UNSIGNED (type)) | |
0c5c4d59 | 6758 | return spu_builtin_decls[SPU_MULO_1]; |
e99f512d | 6759 | else |
0c5c4d59 | 6760 | return spu_builtin_decls[SPU_MULO_0]; |
e99f512d | 6761 | break; |
6762 | default: | |
6763 | return NULL_TREE; | |
6764 | } | |
6765 | } | |
6766 | ||
a76866d3 | 6767 | /* Implement targetm.vectorize.builtin_mask_for_load. */ |
6768 | static tree | |
6769 | spu_builtin_mask_for_load (void) | |
6770 | { | |
0c5c4d59 | 6771 | return spu_builtin_decls[SPU_MASK_FOR_LOAD]; |
a76866d3 | 6772 | } |
5df189be | 6773 | |
a28df51d | 6774 | /* Implement targetm.vectorize.builtin_vectorization_cost. */ |
6775 | static int | |
0822b158 | 6776 | spu_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost, |
6777 | tree vectype ATTRIBUTE_UNUSED, | |
6778 | int misalign ATTRIBUTE_UNUSED) | |
559093aa | 6779 | { |
6780 | switch (type_of_cost) | |
6781 | { | |
6782 | case scalar_stmt: | |
6783 | case vector_stmt: | |
6784 | case vector_load: | |
6785 | case vector_store: | |
6786 | case vec_to_scalar: | |
6787 | case scalar_to_vec: | |
6788 | case cond_branch_not_taken: | |
6789 | case vec_perm: | |
6790 | return 1; | |
6791 | ||
6792 | case scalar_store: | |
6793 | return 10; | |
6794 | ||
6795 | case scalar_load: | |
6796 | /* Load + rotate. */ | |
6797 | return 2; | |
6798 | ||
6799 | case unaligned_load: | |
6800 | return 2; | |
6801 | ||
6802 | case cond_branch_taken: | |
6803 | return 6; | |
6804 | ||
6805 | default: | |
6806 | gcc_unreachable (); | |
6807 | } | |
a28df51d | 6808 | } |
6809 | ||
0e87db76 | 6810 | /* Return true iff, data reference of TYPE can reach vector alignment (16) |
6811 | after applying N number of iterations. This routine does not determine | |
6812 | how may iterations are required to reach desired alignment. */ | |
6813 | ||
6814 | static bool | |
a9f1838b | 6815 | spu_vector_alignment_reachable (const_tree type ATTRIBUTE_UNUSED, bool is_packed) |
0e87db76 | 6816 | { |
6817 | if (is_packed) | |
6818 | return false; | |
6819 | ||
6820 | /* All other types are naturally aligned. */ | |
6821 | return true; | |
6822 | } | |
6823 | ||
a0515226 | 6824 | /* Implement targetm.vectorize.builtin_vec_perm. */ |
6825 | tree | |
6826 | spu_builtin_vec_perm (tree type, tree *mask_element_type) | |
6827 | { | |
a0515226 | 6828 | *mask_element_type = unsigned_char_type_node; |
6829 | ||
6830 | switch (TYPE_MODE (type)) | |
6831 | { | |
6832 | case V16QImode: | |
6833 | if (TYPE_UNSIGNED (type)) | |
0c5c4d59 | 6834 | return spu_builtin_decls[SPU_SHUFFLE_0]; |
a0515226 | 6835 | else |
0c5c4d59 | 6836 | return spu_builtin_decls[SPU_SHUFFLE_1]; |
a0515226 | 6837 | |
6838 | case V8HImode: | |
6839 | if (TYPE_UNSIGNED (type)) | |
0c5c4d59 | 6840 | return spu_builtin_decls[SPU_SHUFFLE_2]; |
a0515226 | 6841 | else |
0c5c4d59 | 6842 | return spu_builtin_decls[SPU_SHUFFLE_3]; |
a0515226 | 6843 | |
6844 | case V4SImode: | |
6845 | if (TYPE_UNSIGNED (type)) | |
0c5c4d59 | 6846 | return spu_builtin_decls[SPU_SHUFFLE_4]; |
a0515226 | 6847 | else |
0c5c4d59 | 6848 | return spu_builtin_decls[SPU_SHUFFLE_5]; |
a0515226 | 6849 | |
6850 | case V2DImode: | |
6851 | if (TYPE_UNSIGNED (type)) | |
0c5c4d59 | 6852 | return spu_builtin_decls[SPU_SHUFFLE_6]; |
a0515226 | 6853 | else |
0c5c4d59 | 6854 | return spu_builtin_decls[SPU_SHUFFLE_7]; |
a0515226 | 6855 | |
6856 | case V4SFmode: | |
0c5c4d59 | 6857 | return spu_builtin_decls[SPU_SHUFFLE_8]; |
a0515226 | 6858 | |
6859 | case V2DFmode: | |
0c5c4d59 | 6860 | return spu_builtin_decls[SPU_SHUFFLE_9]; |
a0515226 | 6861 | |
6862 | default: | |
6863 | return NULL_TREE; | |
6864 | } | |
a0515226 | 6865 | } |
6866 | ||
6cf5579e | 6867 | /* Return the appropriate mode for a named address pointer. */ |
6868 | static enum machine_mode | |
6869 | spu_addr_space_pointer_mode (addr_space_t addrspace) | |
6870 | { | |
6871 | switch (addrspace) | |
6872 | { | |
6873 | case ADDR_SPACE_GENERIC: | |
6874 | return ptr_mode; | |
6875 | case ADDR_SPACE_EA: | |
6876 | return EAmode; | |
6877 | default: | |
6878 | gcc_unreachable (); | |
6879 | } | |
6880 | } | |
6881 | ||
6882 | /* Return the appropriate mode for a named address address. */ | |
6883 | static enum machine_mode | |
6884 | spu_addr_space_address_mode (addr_space_t addrspace) | |
6885 | { | |
6886 | switch (addrspace) | |
6887 | { | |
6888 | case ADDR_SPACE_GENERIC: | |
6889 | return Pmode; | |
6890 | case ADDR_SPACE_EA: | |
6891 | return EAmode; | |
6892 | default: | |
6893 | gcc_unreachable (); | |
6894 | } | |
6895 | } | |
6896 | ||
6897 | /* Determine if one named address space is a subset of another. */ | |
6898 | ||
6899 | static bool | |
6900 | spu_addr_space_subset_p (addr_space_t subset, addr_space_t superset) | |
6901 | { | |
6902 | gcc_assert (subset == ADDR_SPACE_GENERIC || subset == ADDR_SPACE_EA); | |
6903 | gcc_assert (superset == ADDR_SPACE_GENERIC || superset == ADDR_SPACE_EA); | |
6904 | ||
6905 | if (subset == superset) | |
6906 | return true; | |
6907 | ||
6908 | /* If we have -mno-address-space-conversion, treat __ea and generic as not | |
6909 | being subsets but instead as disjoint address spaces. */ | |
6910 | else if (!TARGET_ADDRESS_SPACE_CONVERSION) | |
6911 | return false; | |
6912 | ||
6913 | else | |
6914 | return (subset == ADDR_SPACE_GENERIC && superset == ADDR_SPACE_EA); | |
6915 | } | |
6916 | ||
6917 | /* Convert from one address space to another. */ | |
6918 | static rtx | |
6919 | spu_addr_space_convert (rtx op, tree from_type, tree to_type) | |
6920 | { | |
6921 | addr_space_t from_as = TYPE_ADDR_SPACE (TREE_TYPE (from_type)); | |
6922 | addr_space_t to_as = TYPE_ADDR_SPACE (TREE_TYPE (to_type)); | |
6923 | ||
6924 | gcc_assert (from_as == ADDR_SPACE_GENERIC || from_as == ADDR_SPACE_EA); | |
6925 | gcc_assert (to_as == ADDR_SPACE_GENERIC || to_as == ADDR_SPACE_EA); | |
6926 | ||
6927 | if (to_as == ADDR_SPACE_GENERIC && from_as == ADDR_SPACE_EA) | |
6928 | { | |
6929 | rtx result, ls; | |
6930 | ||
6931 | ls = gen_const_mem (DImode, | |
6932 | gen_rtx_SYMBOL_REF (Pmode, "__ea_local_store")); | |
6933 | set_mem_align (ls, 128); | |
6934 | ||
6935 | result = gen_reg_rtx (Pmode); | |
6936 | ls = force_reg (Pmode, convert_modes (Pmode, DImode, ls, 1)); | |
6937 | op = force_reg (Pmode, convert_modes (Pmode, EAmode, op, 1)); | |
6938 | ls = emit_conditional_move (ls, NE, op, const0_rtx, Pmode, | |
6939 | ls, const0_rtx, Pmode, 1); | |
6940 | ||
6941 | emit_insn (gen_subsi3 (result, op, ls)); | |
6942 | ||
6943 | return result; | |
6944 | } | |
6945 | ||
6946 | else if (to_as == ADDR_SPACE_EA && from_as == ADDR_SPACE_GENERIC) | |
6947 | { | |
6948 | rtx result, ls; | |
6949 | ||
6950 | ls = gen_const_mem (DImode, | |
6951 | gen_rtx_SYMBOL_REF (Pmode, "__ea_local_store")); | |
6952 | set_mem_align (ls, 128); | |
6953 | ||
6954 | result = gen_reg_rtx (EAmode); | |
6955 | ls = force_reg (EAmode, convert_modes (EAmode, DImode, ls, 1)); | |
6956 | op = force_reg (Pmode, op); | |
6957 | ls = emit_conditional_move (ls, NE, op, const0_rtx, Pmode, | |
6958 | ls, const0_rtx, EAmode, 1); | |
6959 | op = force_reg (EAmode, convert_modes (EAmode, Pmode, op, 1)); | |
6960 | ||
6961 | if (EAmode == SImode) | |
6962 | emit_insn (gen_addsi3 (result, op, ls)); | |
6963 | else | |
6964 | emit_insn (gen_adddi3 (result, op, ls)); | |
6965 | ||
6966 | return result; | |
6967 | } | |
6968 | ||
6969 | else | |
6970 | gcc_unreachable (); | |
6971 | } | |
6972 | ||
6973 | ||
d52fd16a | 6974 | /* Count the total number of instructions in each pipe and return the |
6975 | maximum, which is used as the Minimum Iteration Interval (MII) | |
6976 | in the modulo scheduler. get_pipe() will return -2, -1, 0, or 1. | |
6977 | -2 are instructions that can go in pipe0 or pipe1. */ | |
6978 | static int | |
6979 | spu_sms_res_mii (struct ddg *g) | |
6980 | { | |
6981 | int i; | |
6982 | unsigned t[4] = {0, 0, 0, 0}; | |
6983 | ||
6984 | for (i = 0; i < g->num_nodes; i++) | |
6985 | { | |
6986 | rtx insn = g->nodes[i].insn; | |
6987 | int p = get_pipe (insn) + 2; | |
6988 | ||
1e944a0b | 6989 | gcc_assert (p >= 0); |
6990 | gcc_assert (p < 4); | |
d52fd16a | 6991 | |
6992 | t[p]++; | |
6993 | if (dump_file && INSN_P (insn)) | |
6994 | fprintf (dump_file, "i%d %s %d %d\n", | |
6995 | INSN_UID (insn), | |
6996 | insn_data[INSN_CODE(insn)].name, | |
6997 | p, t[p]); | |
6998 | } | |
6999 | if (dump_file) | |
7000 | fprintf (dump_file, "%d %d %d %d\n", t[0], t[1], t[2], t[3]); | |
7001 | ||
7002 | return MAX ((t[0] + t[2] + t[3] + 1) / 2, MAX (t[2], t[3])); | |
7003 | } | |
7004 | ||
7005 | ||
5df189be | 7006 | void |
7007 | spu_init_expanders (void) | |
9d98604b | 7008 | { |
5df189be | 7009 | if (cfun) |
9d98604b | 7010 | { |
7011 | rtx r0, r1; | |
7012 | /* HARD_FRAME_REGISTER is only 128 bit aligned when | |
7013 | frame_pointer_needed is true. We don't know that until we're | |
7014 | expanding the prologue. */ | |
7015 | REGNO_POINTER_ALIGN (HARD_FRAME_POINTER_REGNUM) = 8; | |
7016 | ||
7017 | /* A number of passes use LAST_VIRTUAL_REGISTER+1 and | |
7018 | LAST_VIRTUAL_REGISTER+2 to test the back-end. We want them | |
7019 | to be treated as aligned, so generate them here. */ | |
7020 | r0 = gen_reg_rtx (SImode); | |
7021 | r1 = gen_reg_rtx (SImode); | |
7022 | mark_reg_pointer (r0, 128); | |
7023 | mark_reg_pointer (r1, 128); | |
7024 | gcc_assert (REGNO (r0) == LAST_VIRTUAL_REGISTER + 1 | |
7025 | && REGNO (r1) == LAST_VIRTUAL_REGISTER + 2); | |
7026 | } | |
ea32e033 | 7027 | } |
7028 | ||
7029 | static enum machine_mode | |
7030 | spu_libgcc_cmp_return_mode (void) | |
7031 | { | |
7032 | ||
7033 | /* For SPU word mode is TI mode so it is better to use SImode | |
7034 | for compare returns. */ | |
7035 | return SImode; | |
7036 | } | |
7037 | ||
7038 | static enum machine_mode | |
7039 | spu_libgcc_shift_count_mode (void) | |
7040 | { | |
7041 | /* For SPU word mode is TI mode so it is better to use SImode | |
7042 | for shift counts. */ | |
7043 | return SImode; | |
7044 | } | |
5a976006 | 7045 | |
7046 | /* An early place to adjust some flags after GCC has finished processing | |
7047 | * them. */ | |
7048 | static void | |
7049 | asm_file_start (void) | |
7050 | { | |
5a976006 | 7051 | default_file_start (); |
7052 | } | |
7053 | ||
a08dfd55 | 7054 | /* Implement targetm.section_type_flags. */ |
7055 | static unsigned int | |
7056 | spu_section_type_flags (tree decl, const char *name, int reloc) | |
7057 | { | |
7058 | /* .toe needs to have type @nobits. */ | |
7059 | if (strcmp (name, ".toe") == 0) | |
7060 | return SECTION_BSS; | |
6cf5579e | 7061 | /* Don't load _ea into the current address space. */ |
7062 | if (strcmp (name, "._ea") == 0) | |
7063 | return SECTION_WRITE | SECTION_DEBUG; | |
a08dfd55 | 7064 | return default_section_type_flags (decl, name, reloc); |
7065 | } | |
c2233b46 | 7066 | |
6cf5579e | 7067 | /* Implement targetm.select_section. */ |
7068 | static section * | |
7069 | spu_select_section (tree decl, int reloc, unsigned HOST_WIDE_INT align) | |
7070 | { | |
7071 | /* Variables and constants defined in the __ea address space | |
7072 | go into a special section named "._ea". */ | |
7073 | if (TREE_TYPE (decl) != error_mark_node | |
7074 | && TYPE_ADDR_SPACE (TREE_TYPE (decl)) == ADDR_SPACE_EA) | |
7075 | { | |
7076 | /* We might get called with string constants, but get_named_section | |
7077 | doesn't like them as they are not DECLs. Also, we need to set | |
7078 | flags in that case. */ | |
7079 | if (!DECL_P (decl)) | |
7080 | return get_section ("._ea", SECTION_WRITE | SECTION_DEBUG, NULL); | |
7081 | ||
7082 | return get_named_section (decl, "._ea", reloc); | |
7083 | } | |
7084 | ||
7085 | return default_elf_select_section (decl, reloc, align); | |
7086 | } | |
7087 | ||
7088 | /* Implement targetm.unique_section. */ | |
7089 | static void | |
7090 | spu_unique_section (tree decl, int reloc) | |
7091 | { | |
7092 | /* We don't support unique section names in the __ea address | |
7093 | space for now. */ | |
7094 | if (TREE_TYPE (decl) != error_mark_node | |
7095 | && TYPE_ADDR_SPACE (TREE_TYPE (decl)) != 0) | |
7096 | return; | |
7097 | ||
7098 | default_unique_section (decl, reloc); | |
7099 | } | |
7100 | ||
56c7bfc2 | 7101 | /* Generate a constant or register which contains 2^SCALE. We assume |
7102 | the result is valid for MODE. Currently, MODE must be V4SFmode and | |
7103 | SCALE must be SImode. */ | |
7104 | rtx | |
7105 | spu_gen_exp2 (enum machine_mode mode, rtx scale) | |
7106 | { | |
7107 | gcc_assert (mode == V4SFmode); | |
7108 | gcc_assert (GET_MODE (scale) == SImode || GET_CODE (scale) == CONST_INT); | |
7109 | if (GET_CODE (scale) != CONST_INT) | |
7110 | { | |
7111 | /* unsigned int exp = (127 + scale) << 23; | |
7112 | __vector float m = (__vector float) spu_splats (exp); */ | |
7113 | rtx reg = force_reg (SImode, scale); | |
7114 | rtx exp = gen_reg_rtx (SImode); | |
7115 | rtx mul = gen_reg_rtx (mode); | |
7116 | emit_insn (gen_addsi3 (exp, reg, GEN_INT (127))); | |
7117 | emit_insn (gen_ashlsi3 (exp, exp, GEN_INT (23))); | |
7118 | emit_insn (gen_spu_splats (mul, gen_rtx_SUBREG (GET_MODE_INNER (mode), exp, 0))); | |
7119 | return mul; | |
7120 | } | |
7121 | else | |
7122 | { | |
7123 | HOST_WIDE_INT exp = 127 + INTVAL (scale); | |
7124 | unsigned char arr[16]; | |
7125 | arr[0] = arr[4] = arr[8] = arr[12] = exp >> 1; | |
7126 | arr[1] = arr[5] = arr[9] = arr[13] = exp << 7; | |
7127 | arr[2] = arr[6] = arr[10] = arr[14] = 0; | |
7128 | arr[3] = arr[7] = arr[11] = arr[15] = 0; | |
7129 | return array_to_constant (mode, arr); | |
7130 | } | |
7131 | } | |
7132 | ||
9d98604b | 7133 | /* After reload, just change the convert into a move instruction |
7134 | or a dead instruction. */ | |
7135 | void | |
7136 | spu_split_convert (rtx ops[]) | |
7137 | { | |
7138 | if (REGNO (ops[0]) == REGNO (ops[1])) | |
7139 | emit_note (NOTE_INSN_DELETED); | |
7140 | else | |
7141 | { | |
7142 | /* Use TImode always as this might help hard reg copyprop. */ | |
7143 | rtx op0 = gen_rtx_REG (TImode, REGNO (ops[0])); | |
7144 | rtx op1 = gen_rtx_REG (TImode, REGNO (ops[1])); | |
7145 | emit_insn (gen_move_insn (op0, op1)); | |
7146 | } | |
7147 | } | |
7148 | ||
b3878a6c | 7149 | void |
4cbad5bb | 7150 | spu_function_profiler (FILE * file, int labelno ATTRIBUTE_UNUSED) |
b3878a6c | 7151 | { |
7152 | fprintf (file, "# profile\n"); | |
7153 | fprintf (file, "brsl $75, _mcount\n"); | |
7154 | } | |
7155 | ||
329c1e4e | 7156 | /* Implement targetm.ref_may_alias_errno. */ |
7157 | static bool | |
7158 | spu_ref_may_alias_errno (ao_ref *ref) | |
7159 | { | |
7160 | tree base = ao_ref_base (ref); | |
7161 | ||
7162 | /* With SPU newlib, errno is defined as something like | |
7163 | _impure_data._errno | |
7164 | The default implementation of this target macro does not | |
7165 | recognize such expressions, so special-code for it here. */ | |
7166 | ||
7167 | if (TREE_CODE (base) == VAR_DECL | |
7168 | && !TREE_STATIC (base) | |
7169 | && DECL_EXTERNAL (base) | |
7170 | && TREE_CODE (TREE_TYPE (base)) == RECORD_TYPE | |
7171 | && strcmp (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (base)), | |
7172 | "_impure_data") == 0 | |
7173 | /* _errno is the first member of _impure_data. */ | |
7174 | && ref->offset == 0) | |
7175 | return true; | |
7176 | ||
7177 | return default_ref_may_alias_errno (ref); | |
7178 | } | |
7179 | ||
f17d2d13 | 7180 | /* Output thunk to FILE that implements a C++ virtual function call (with |
7181 | multiple inheritance) to FUNCTION. The thunk adjusts the this pointer | |
7182 | by DELTA, and unless VCALL_OFFSET is zero, applies an additional adjustment | |
7183 | stored at VCALL_OFFSET in the vtable whose address is located at offset 0 | |
7184 | relative to the resulting this pointer. */ | |
7185 | ||
7186 | static void | |
7187 | spu_output_mi_thunk (FILE *file, tree thunk ATTRIBUTE_UNUSED, | |
7188 | HOST_WIDE_INT delta, HOST_WIDE_INT vcall_offset, | |
7189 | tree function) | |
7190 | { | |
7191 | rtx op[8]; | |
7192 | ||
7193 | /* Make sure unwind info is emitted for the thunk if needed. */ | |
7194 | final_start_function (emit_barrier (), file, 1); | |
7195 | ||
7196 | /* Operand 0 is the target function. */ | |
7197 | op[0] = XEXP (DECL_RTL (function), 0); | |
7198 | ||
7199 | /* Operand 1 is the 'this' pointer. */ | |
7200 | if (aggregate_value_p (TREE_TYPE (TREE_TYPE (function)), function)) | |
7201 | op[1] = gen_rtx_REG (Pmode, FIRST_ARG_REGNUM + 1); | |
7202 | else | |
7203 | op[1] = gen_rtx_REG (Pmode, FIRST_ARG_REGNUM); | |
7204 | ||
7205 | /* Operands 2/3 are the low/high halfwords of delta. */ | |
7206 | op[2] = GEN_INT (trunc_int_for_mode (delta, HImode)); | |
7207 | op[3] = GEN_INT (trunc_int_for_mode (delta >> 16, HImode)); | |
7208 | ||
7209 | /* Operands 4/5 are the low/high halfwords of vcall_offset. */ | |
7210 | op[4] = GEN_INT (trunc_int_for_mode (vcall_offset, HImode)); | |
7211 | op[5] = GEN_INT (trunc_int_for_mode (vcall_offset >> 16, HImode)); | |
7212 | ||
7213 | /* Operands 6/7 are temporary registers. */ | |
7214 | op[6] = gen_rtx_REG (Pmode, 79); | |
7215 | op[7] = gen_rtx_REG (Pmode, 78); | |
7216 | ||
7217 | /* Add DELTA to this pointer. */ | |
7218 | if (delta) | |
7219 | { | |
7220 | if (delta >= -0x200 && delta < 0x200) | |
7221 | output_asm_insn ("ai\t%1,%1,%2", op); | |
7222 | else if (delta >= -0x8000 && delta < 0x8000) | |
7223 | { | |
7224 | output_asm_insn ("il\t%6,%2", op); | |
7225 | output_asm_insn ("a\t%1,%1,%6", op); | |
7226 | } | |
7227 | else | |
7228 | { | |
7229 | output_asm_insn ("ilhu\t%6,%3", op); | |
7230 | output_asm_insn ("iohl\t%6,%2", op); | |
7231 | output_asm_insn ("a\t%1,%1,%6", op); | |
7232 | } | |
7233 | } | |
7234 | ||
7235 | /* Perform vcall adjustment. */ | |
7236 | if (vcall_offset) | |
7237 | { | |
7238 | output_asm_insn ("lqd\t%7,0(%1)", op); | |
7239 | output_asm_insn ("rotqby\t%7,%7,%1", op); | |
7240 | ||
7241 | if (vcall_offset >= -0x200 && vcall_offset < 0x200) | |
7242 | output_asm_insn ("ai\t%7,%7,%4", op); | |
7243 | else if (vcall_offset >= -0x8000 && vcall_offset < 0x8000) | |
7244 | { | |
7245 | output_asm_insn ("il\t%6,%4", op); | |
7246 | output_asm_insn ("a\t%7,%7,%6", op); | |
7247 | } | |
7248 | else | |
7249 | { | |
7250 | output_asm_insn ("ilhu\t%6,%5", op); | |
7251 | output_asm_insn ("iohl\t%6,%4", op); | |
7252 | output_asm_insn ("a\t%7,%7,%6", op); | |
7253 | } | |
7254 | ||
7255 | output_asm_insn ("lqd\t%6,0(%7)", op); | |
7256 | output_asm_insn ("rotqby\t%6,%6,%7", op); | |
7257 | output_asm_insn ("a\t%1,%1,%6", op); | |
7258 | } | |
7259 | ||
7260 | /* Jump to target. */ | |
7261 | output_asm_insn ("br\t%0", op); | |
7262 | ||
7263 | final_end_function (); | |
7264 | } | |
7265 | ||
c2233b46 | 7266 | #include "gt-spu.h" |