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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents f6334be47118
children 84e7813d76e9
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68:561a7518be6b 111:04ced10e8804
1 /* Vectorizer 1 /* Vectorizer
2 Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 2 Copyright (C) 2003-2017 Free Software Foundation, Inc.
3 Free Software Foundation, Inc.
4 Contributed by Dorit Naishlos <dorit@il.ibm.com> 3 Contributed by Dorit Naishlos <dorit@il.ibm.com>
5 4
6 This file is part of GCC. 5 This file is part of GCC.
7 6
8 GCC is free software; you can redistribute it and/or modify it under 7 GCC is free software; you can redistribute it and/or modify it under
21 20
22 #ifndef GCC_TREE_VECTORIZER_H 21 #ifndef GCC_TREE_VECTORIZER_H
23 #define GCC_TREE_VECTORIZER_H 22 #define GCC_TREE_VECTORIZER_H
24 23
25 #include "tree-data-ref.h" 24 #include "tree-data-ref.h"
26 25 #include "tree-hash-traits.h"
27 typedef source_location LOC; 26 #include "target.h"
28 #define UNKNOWN_LOC UNKNOWN_LOCATION
29 #define EXPR_LOC(e) EXPR_LOCATION(e)
30 #define LOC_FILE(l) LOCATION_FILE (l)
31 #define LOC_LINE(l) LOCATION_LINE (l)
32 27
33 /* Used for naming of new temporaries. */ 28 /* Used for naming of new temporaries. */
34 enum vect_var_kind { 29 enum vect_var_kind {
35 vect_simple_var, 30 vect_simple_var,
36 vect_pointer_var, 31 vect_pointer_var,
37 vect_scalar_var 32 vect_scalar_var,
33 vect_mask_var
38 }; 34 };
39 35
40 /* Defines type of operation. */ 36 /* Defines type of operation. */
41 enum operation_type { 37 enum operation_type {
42 unary_op = 1, 38 unary_op = 1,
64 vect_double_reduction_def, 60 vect_double_reduction_def,
65 vect_nested_cycle, 61 vect_nested_cycle,
66 vect_unknown_def_type 62 vect_unknown_def_type
67 }; 63 };
68 64
65 /* Define type of reduction. */
66 enum vect_reduction_type {
67 TREE_CODE_REDUCTION,
68 COND_REDUCTION,
69 INTEGER_INDUC_COND_REDUCTION,
70 CONST_COND_REDUCTION
71 };
72
69 #define VECTORIZABLE_CYCLE_DEF(D) (((D) == vect_reduction_def) \ 73 #define VECTORIZABLE_CYCLE_DEF(D) (((D) == vect_reduction_def) \
70 || ((D) == vect_double_reduction_def) \ 74 || ((D) == vect_double_reduction_def) \
71 || ((D) == vect_nested_cycle)) 75 || ((D) == vect_nested_cycle))
72 76
77 /* Structure to encapsulate information about a group of like
78 instructions to be presented to the target cost model. */
79 struct stmt_info_for_cost {
80 int count;
81 enum vect_cost_for_stmt kind;
82 gimple *stmt;
83 int misalign;
84 };
85
86 typedef vec<stmt_info_for_cost> stmt_vector_for_cost;
87
88 /* Maps base addresses to an innermost_loop_behavior that gives the maximum
89 known alignment for that base. */
90 typedef hash_map<tree_operand_hash,
91 innermost_loop_behavior *> vec_base_alignments;
92
73 /************************************************************************ 93 /************************************************************************
74 SLP 94 SLP
75 ************************************************************************/ 95 ************************************************************************/
76 96 typedef struct _slp_tree *slp_tree;
77 /* A computation tree of an SLP instance. Each node corresponds to a group of 97
98 /* A computation tree of an SLP instance. Each node corresponds to a group of
78 stmts to be packed in a SIMD stmt. */ 99 stmts to be packed in a SIMD stmt. */
79 typedef struct _slp_tree { 100 struct _slp_tree {
80 /* Only binary and unary operations are supported. LEFT child corresponds to 101 /* Nodes that contain def-stmts of this node statements operands. */
81 the first operand and RIGHT child to the second if the operation is 102 vec<slp_tree> children;
82 binary. */
83 struct _slp_tree *left;
84 struct _slp_tree *right;
85 /* A group of scalar stmts to be vectorized together. */ 103 /* A group of scalar stmts to be vectorized together. */
86 VEC (gimple, heap) *stmts; 104 vec<gimple *> stmts;
105 /* Load permutation relative to the stores, NULL if there is no
106 permutation. */
107 vec<unsigned> load_permutation;
87 /* Vectorized stmt/s. */ 108 /* Vectorized stmt/s. */
88 VEC (gimple, heap) *vec_stmts; 109 vec<gimple *> vec_stmts;
89 /* Number of vector stmts that are created to replace the group of scalar 110 /* Number of vector stmts that are created to replace the group of scalar
90 stmts. It is calculated during the transformation phase as the number of 111 stmts. It is calculated during the transformation phase as the number of
91 scalar elements in one scalar iteration (GROUP_SIZE) multiplied by VF 112 scalar elements in one scalar iteration (GROUP_SIZE) multiplied by VF
92 divided by vector size. */ 113 divided by vector size. */
93 unsigned int vec_stmts_size; 114 unsigned int vec_stmts_size;
94 /* Vectorization costs associated with SLP node. */ 115 /* Whether the scalar computations use two different operators. */
95 struct 116 bool two_operators;
96 { 117 /* The DEF type of this node. */
97 int outside_of_loop; /* Statements generated outside loop. */ 118 enum vect_def_type def_type;
98 int inside_of_loop; /* Statements generated inside loop. */ 119 };
99 } cost; 120
100 } *slp_tree;
101
102 DEF_VEC_P(slp_tree);
103 DEF_VEC_ALLOC_P(slp_tree, heap);
104 121
105 /* SLP instance is a sequence of stmts in a loop that can be packed into 122 /* SLP instance is a sequence of stmts in a loop that can be packed into
106 SIMD stmts. */ 123 SIMD stmts. */
107 typedef struct _slp_instance { 124 typedef struct _slp_instance {
108 /* The root of SLP tree. */ 125 /* The root of SLP tree. */
112 unsigned int group_size; 129 unsigned int group_size;
113 130
114 /* The unrolling factor required to vectorized this SLP instance. */ 131 /* The unrolling factor required to vectorized this SLP instance. */
115 unsigned int unrolling_factor; 132 unsigned int unrolling_factor;
116 133
117 /* Vectorization costs associated with SLP instance. */
118 struct
119 {
120 int outside_of_loop; /* Statements generated outside loop. */
121 int inside_of_loop; /* Statements generated inside loop. */
122 } cost;
123
124 /* Loads permutation relatively to the stores, NULL if there is no
125 permutation. */
126 VEC (int, heap) *load_permutation;
127
128 /* The group of nodes that contain loads of this SLP instance. */ 134 /* The group of nodes that contain loads of this SLP instance. */
129 VEC (slp_tree, heap) *loads; 135 vec<slp_tree> loads;
130 136
131 /* The first scalar load of the instance. The created vector loads will be 137 /* The SLP node containing the reduction PHIs. */
132 inserted before this statement. */ 138 slp_tree reduc_phis;
133 gimple first_load;
134 } *slp_instance; 139 } *slp_instance;
135 140
136 DEF_VEC_P(slp_instance);
137 DEF_VEC_ALLOC_P(slp_instance, heap);
138 141
139 /* Access Functions. */ 142 /* Access Functions. */
140 #define SLP_INSTANCE_TREE(S) (S)->root 143 #define SLP_INSTANCE_TREE(S) (S)->root
141 #define SLP_INSTANCE_GROUP_SIZE(S) (S)->group_size 144 #define SLP_INSTANCE_GROUP_SIZE(S) (S)->group_size
142 #define SLP_INSTANCE_UNROLLING_FACTOR(S) (S)->unrolling_factor 145 #define SLP_INSTANCE_UNROLLING_FACTOR(S) (S)->unrolling_factor
143 #define SLP_INSTANCE_OUTSIDE_OF_LOOP_COST(S) (S)->cost.outside_of_loop
144 #define SLP_INSTANCE_INSIDE_OF_LOOP_COST(S) (S)->cost.inside_of_loop
145 #define SLP_INSTANCE_LOAD_PERMUTATION(S) (S)->load_permutation
146 #define SLP_INSTANCE_LOADS(S) (S)->loads 146 #define SLP_INSTANCE_LOADS(S) (S)->loads
147 #define SLP_INSTANCE_FIRST_LOAD_STMT(S) (S)->first_load 147
148 148 #define SLP_TREE_CHILDREN(S) (S)->children
149 #define SLP_TREE_LEFT(S) (S)->left
150 #define SLP_TREE_RIGHT(S) (S)->right
151 #define SLP_TREE_SCALAR_STMTS(S) (S)->stmts 149 #define SLP_TREE_SCALAR_STMTS(S) (S)->stmts
152 #define SLP_TREE_VEC_STMTS(S) (S)->vec_stmts 150 #define SLP_TREE_VEC_STMTS(S) (S)->vec_stmts
153 #define SLP_TREE_NUMBER_OF_VEC_STMTS(S) (S)->vec_stmts_size 151 #define SLP_TREE_NUMBER_OF_VEC_STMTS(S) (S)->vec_stmts_size
154 #define SLP_TREE_OUTSIDE_OF_LOOP_COST(S) (S)->cost.outside_of_loop 152 #define SLP_TREE_LOAD_PERMUTATION(S) (S)->load_permutation
155 #define SLP_TREE_INSIDE_OF_LOOP_COST(S) (S)->cost.inside_of_loop 153 #define SLP_TREE_TWO_OPERATORS(S) (S)->two_operators
156 154 #define SLP_TREE_DEF_TYPE(S) (S)->def_type
157 155
158 typedef struct _vect_peel_info 156
159 { 157
160 int npeel; 158 /* Describes two objects whose addresses must be unequal for the vectorized
161 struct data_reference *dr; 159 loop to be valid. */
162 unsigned int count; 160 typedef std::pair<tree, tree> vec_object_pair;
163 } *vect_peel_info; 161
164 162 /* Vectorizer state common between loop and basic-block vectorization. */
165 typedef struct _vect_peel_extended_info 163 struct vec_info {
166 { 164 enum vec_kind { bb, loop };
167 struct _vect_peel_info peel_info; 165
168 unsigned int inside_cost; 166 vec_info (vec_kind, void *);
169 unsigned int outside_cost; 167 ~vec_info ();
170 } *vect_peel_extended_info; 168
169 /* The type of vectorization. */
170 vec_kind kind;
171
172 /* All SLP instances. */
173 auto_vec<slp_instance> slp_instances;
174
175 /* All data references. Freed by free_data_refs, so not an auto_vec. */
176 vec<data_reference_p> datarefs;
177
178 /* Maps base addresses to an innermost_loop_behavior that gives the maximum
179 known alignment for that base. */
180 vec_base_alignments base_alignments;
181
182 /* All data dependences. Freed by free_dependence_relations, so not
183 an auto_vec. */
184 vec<ddr_p> ddrs;
185
186 /* All interleaving chains of stores, represented by the first
187 stmt in the chain. */
188 auto_vec<gimple *> grouped_stores;
189
190 /* Cost data used by the target cost model. */
191 void *target_cost_data;
192 };
193
194 struct _loop_vec_info;
195 struct _bb_vec_info;
196
197 template<>
198 template<>
199 inline bool
200 is_a_helper <_loop_vec_info *>::test (vec_info *i)
201 {
202 return i->kind == vec_info::loop;
203 }
204
205 template<>
206 template<>
207 inline bool
208 is_a_helper <_bb_vec_info *>::test (vec_info *i)
209 {
210 return i->kind == vec_info::bb;
211 }
212
171 213
172 /*-----------------------------------------------------------------*/ 214 /*-----------------------------------------------------------------*/
173 /* Info on vectorized loops. */ 215 /* Info on vectorized loops. */
174 /*-----------------------------------------------------------------*/ 216 /*-----------------------------------------------------------------*/
175 typedef struct _loop_vec_info { 217 typedef struct _loop_vec_info : public vec_info {
218 _loop_vec_info (struct loop *);
219 ~_loop_vec_info ();
176 220
177 /* The loop to which this info struct refers to. */ 221 /* The loop to which this info struct refers to. */
178 struct loop *loop; 222 struct loop *loop;
179 223
180 /* The loop basic blocks. */ 224 /* The loop basic blocks. */
181 basic_block *bbs; 225 basic_block *bbs;
182 226
227 /* Number of latch executions. */
228 tree num_itersm1;
183 /* Number of iterations. */ 229 /* Number of iterations. */
184 tree num_iters; 230 tree num_iters;
231 /* Number of iterations of the original loop. */
185 tree num_iters_unchanged; 232 tree num_iters_unchanged;
186 233 /* Condition under which this loop is analyzed and versioned. */
187 /* Minimum number of iterations below which vectorization is expected to 234 tree num_iters_assumptions;
188 not be profitable (as estimated by the cost model). 235
189 -1 indicates that vectorization will not be profitable. 236 /* Threshold of number of iterations below which vectorzation will not be
190 FORNOW: This field is an int. Will be a tree in the future, to represent 237 performed. It is calculated from MIN_PROFITABLE_ITERS and
191 values unknown at compile time. */ 238 PARAM_MIN_VECT_LOOP_BOUND. */
192 int min_profitable_iters; 239 unsigned int th;
193
194 /* Is the loop vectorizable? */
195 bool vectorizable;
196 240
197 /* Unrolling factor */ 241 /* Unrolling factor */
198 int vectorization_factor; 242 int vectorization_factor;
199 243
200 /* The loop location in the source. */ 244 /* Maximum runtime vectorization factor, or MAX_VECTORIZATION_FACTOR
201 LOC loop_line_number; 245 if there is no particular limit. */
246 unsigned HOST_WIDE_INT max_vectorization_factor;
202 247
203 /* Unknown DRs according to which loop was peeled. */ 248 /* Unknown DRs according to which loop was peeled. */
204 struct data_reference *unaligned_dr; 249 struct data_reference *unaligned_dr;
205 250
206 /* peeling_for_alignment indicates whether peeling for alignment will take 251 /* peeling_for_alignment indicates whether peeling for alignment will take
215 260
216 /* The mask used to check the alignment of pointers or arrays. */ 261 /* The mask used to check the alignment of pointers or arrays. */
217 int ptr_mask; 262 int ptr_mask;
218 263
219 /* The loop nest in which the data dependences are computed. */ 264 /* The loop nest in which the data dependences are computed. */
220 VEC (loop_p, heap) *loop_nest; 265 auto_vec<loop_p> loop_nest;
221
222 /* All data references in the loop. */
223 VEC (data_reference_p, heap) *datarefs;
224
225 /* All data dependences in the loop. */
226 VEC (ddr_p, heap) *ddrs;
227 266
228 /* Data Dependence Relations defining address ranges that are candidates 267 /* Data Dependence Relations defining address ranges that are candidates
229 for a run-time aliasing check. */ 268 for a run-time aliasing check. */
230 VEC (ddr_p, heap) *may_alias_ddrs; 269 auto_vec<ddr_p> may_alias_ddrs;
270
271 /* Data Dependence Relations defining address ranges together with segment
272 lengths from which the run-time aliasing check is built. */
273 auto_vec<dr_with_seg_len_pair_t> comp_alias_ddrs;
274
275 /* Check that the addresses of each pair of objects is unequal. */
276 auto_vec<vec_object_pair> check_unequal_addrs;
231 277
232 /* Statements in the loop that have data references that are candidates for a 278 /* Statements in the loop that have data references that are candidates for a
233 runtime (loop versioning) misalignment check. */ 279 runtime (loop versioning) misalignment check. */
234 VEC(gimple,heap) *may_misalign_stmts; 280 auto_vec<gimple *> may_misalign_stmts;
235 281
236 /* All interleaving chains of stores in the loop, represented by the first 282 /* Reduction cycles detected in the loop. Used in loop-aware SLP. */
283 auto_vec<gimple *> reductions;
284
285 /* All reduction chains in the loop, represented by the first
237 stmt in the chain. */ 286 stmt in the chain. */
238 VEC(gimple, heap) *strided_stores; 287 auto_vec<gimple *> reduction_chains;
239 288
240 /* All SLP instances in the loop. This is a subset of the set of STRIDED_STORES 289 /* Cost vector for a single scalar iteration. */
241 of the loop. */ 290 auto_vec<stmt_info_for_cost> scalar_cost_vec;
242 VEC(slp_instance, heap) *slp_instances;
243 291
244 /* The unrolling factor needed to SLP the loop. In case of that pure SLP is 292 /* The unrolling factor needed to SLP the loop. In case of that pure SLP is
245 applied to the loop, i.e., no unrolling is needed, this is 1. */ 293 applied to the loop, i.e., no unrolling is needed, this is 1. */
246 unsigned slp_unrolling_factor; 294 unsigned slp_unrolling_factor;
247 295
248 /* Reduction cycles detected in the loop. Used in loop-aware SLP. */ 296 /* Cost of a single scalar iteration. */
249 VEC (gimple, heap) *reductions; 297 int single_scalar_iteration_cost;
250 298
251 /* Hash table used to choose the best peeling option. */ 299 /* Is the loop vectorizable? */
252 htab_t peeling_htab; 300 bool vectorizable;
301
302 /* When we have grouped data accesses with gaps, we may introduce invalid
303 memory accesses. We peel the last iteration of the loop to prevent
304 this. */
305 bool peeling_for_gaps;
306
307 /* When the number of iterations is not a multiple of the vector size
308 we need to peel off iterations at the end to form an epilogue loop. */
309 bool peeling_for_niter;
310
311 /* Reductions are canonicalized so that the last operand is the reduction
312 operand. If this places a constant into RHS1, this decanonicalizes
313 GIMPLE for other phases, so we must track when this has occurred and
314 fix it up. */
315 bool operands_swapped;
316
317 /* True if there are no loop carried data dependencies in the loop.
318 If loop->safelen <= 1, then this is always true, either the loop
319 didn't have any loop carried data dependencies, or the loop is being
320 vectorized guarded with some runtime alias checks, or couldn't
321 be vectorized at all, but then this field shouldn't be used.
322 For loop->safelen >= 2, the user has asserted that there are no
323 backward dependencies, but there still could be loop carried forward
324 dependencies in such loops. This flag will be false if normal
325 vectorizer data dependency analysis would fail or require versioning
326 for alias, but because of loop->safelen >= 2 it has been vectorized
327 even without versioning for alias. E.g. in:
328 #pragma omp simd
329 for (int i = 0; i < m; i++)
330 a[i] = a[i + k] * c;
331 (or #pragma simd or #pragma ivdep) we can vectorize this and it will
332 DTRT even for k > 0 && k < m, but without safelen we would not
333 vectorize this, so this field would be false. */
334 bool no_data_dependencies;
335
336 /* Mark loops having masked stores. */
337 bool has_mask_store;
338
339 /* If if-conversion versioned this loop before conversion, this is the
340 loop version without if-conversion. */
341 struct loop *scalar_loop;
342
343 /* For loops being epilogues of already vectorized loops
344 this points to the original vectorized loop. Otherwise NULL. */
345 _loop_vec_info *orig_loop_info;
253 346
254 } *loop_vec_info; 347 } *loop_vec_info;
255 348
256 /* Access Functions. */ 349 /* Access Functions. */
257 #define LOOP_VINFO_LOOP(L) (L)->loop 350 #define LOOP_VINFO_LOOP(L) (L)->loop
258 #define LOOP_VINFO_BBS(L) (L)->bbs 351 #define LOOP_VINFO_BBS(L) (L)->bbs
352 #define LOOP_VINFO_NITERSM1(L) (L)->num_itersm1
259 #define LOOP_VINFO_NITERS(L) (L)->num_iters 353 #define LOOP_VINFO_NITERS(L) (L)->num_iters
260 /* Since LOOP_VINFO_NITERS can change after prologue peeling 354 /* Since LOOP_VINFO_NITERS and LOOP_VINFO_NITERSM1 can change after
261 retain total unchanged scalar loop iterations for cost model. */ 355 prologue peeling retain total unchanged scalar loop iterations for
356 cost model. */
262 #define LOOP_VINFO_NITERS_UNCHANGED(L) (L)->num_iters_unchanged 357 #define LOOP_VINFO_NITERS_UNCHANGED(L) (L)->num_iters_unchanged
263 #define LOOP_VINFO_COST_MODEL_MIN_ITERS(L) (L)->min_profitable_iters 358 #define LOOP_VINFO_NITERS_ASSUMPTIONS(L) (L)->num_iters_assumptions
359 #define LOOP_VINFO_COST_MODEL_THRESHOLD(L) (L)->th
264 #define LOOP_VINFO_VECTORIZABLE_P(L) (L)->vectorizable 360 #define LOOP_VINFO_VECTORIZABLE_P(L) (L)->vectorizable
265 #define LOOP_VINFO_VECT_FACTOR(L) (L)->vectorization_factor 361 #define LOOP_VINFO_VECT_FACTOR(L) (L)->vectorization_factor
362 #define LOOP_VINFO_MAX_VECT_FACTOR(L) (L)->max_vectorization_factor
266 #define LOOP_VINFO_PTR_MASK(L) (L)->ptr_mask 363 #define LOOP_VINFO_PTR_MASK(L) (L)->ptr_mask
267 #define LOOP_VINFO_LOOP_NEST(L) (L)->loop_nest 364 #define LOOP_VINFO_LOOP_NEST(L) (L)->loop_nest
268 #define LOOP_VINFO_DATAREFS(L) (L)->datarefs 365 #define LOOP_VINFO_DATAREFS(L) (L)->datarefs
269 #define LOOP_VINFO_DDRS(L) (L)->ddrs 366 #define LOOP_VINFO_DDRS(L) (L)->ddrs
270 #define LOOP_VINFO_INT_NITERS(L) (TREE_INT_CST_LOW ((L)->num_iters)) 367 #define LOOP_VINFO_INT_NITERS(L) (TREE_INT_CST_LOW ((L)->num_iters))
271 #define LOOP_PEELING_FOR_ALIGNMENT(L) (L)->peeling_for_alignment 368 #define LOOP_VINFO_PEELING_FOR_ALIGNMENT(L) (L)->peeling_for_alignment
272 #define LOOP_VINFO_UNALIGNED_DR(L) (L)->unaligned_dr 369 #define LOOP_VINFO_UNALIGNED_DR(L) (L)->unaligned_dr
273 #define LOOP_VINFO_MAY_MISALIGN_STMTS(L) (L)->may_misalign_stmts 370 #define LOOP_VINFO_MAY_MISALIGN_STMTS(L) (L)->may_misalign_stmts
274 #define LOOP_VINFO_LOC(L) (L)->loop_line_number
275 #define LOOP_VINFO_MAY_ALIAS_DDRS(L) (L)->may_alias_ddrs 371 #define LOOP_VINFO_MAY_ALIAS_DDRS(L) (L)->may_alias_ddrs
276 #define LOOP_VINFO_STRIDED_STORES(L) (L)->strided_stores 372 #define LOOP_VINFO_COMP_ALIAS_DDRS(L) (L)->comp_alias_ddrs
373 #define LOOP_VINFO_CHECK_UNEQUAL_ADDRS(L) (L)->check_unequal_addrs
374 #define LOOP_VINFO_GROUPED_STORES(L) (L)->grouped_stores
277 #define LOOP_VINFO_SLP_INSTANCES(L) (L)->slp_instances 375 #define LOOP_VINFO_SLP_INSTANCES(L) (L)->slp_instances
278 #define LOOP_VINFO_SLP_UNROLLING_FACTOR(L) (L)->slp_unrolling_factor 376 #define LOOP_VINFO_SLP_UNROLLING_FACTOR(L) (L)->slp_unrolling_factor
279 #define LOOP_VINFO_REDUCTIONS(L) (L)->reductions 377 #define LOOP_VINFO_REDUCTIONS(L) (L)->reductions
280 #define LOOP_VINFO_PEELING_HTAB(L) (L)->peeling_htab 378 #define LOOP_VINFO_REDUCTION_CHAINS(L) (L)->reduction_chains
281 379 #define LOOP_VINFO_TARGET_COST_DATA(L) (L)->target_cost_data
282 #define LOOP_REQUIRES_VERSIONING_FOR_ALIGNMENT(L) \ 380 #define LOOP_VINFO_PEELING_FOR_GAPS(L) (L)->peeling_for_gaps
283 VEC_length (gimple, (L)->may_misalign_stmts) > 0 381 #define LOOP_VINFO_OPERANDS_SWAPPED(L) (L)->operands_swapped
284 #define LOOP_REQUIRES_VERSIONING_FOR_ALIAS(L) \ 382 #define LOOP_VINFO_PEELING_FOR_NITER(L) (L)->peeling_for_niter
285 VEC_length (ddr_p, (L)->may_alias_ddrs) > 0 383 #define LOOP_VINFO_NO_DATA_DEPENDENCIES(L) (L)->no_data_dependencies
286 384 #define LOOP_VINFO_SCALAR_LOOP(L) (L)->scalar_loop
287 #define NITERS_KNOWN_P(n) \ 385 #define LOOP_VINFO_HAS_MASK_STORE(L) (L)->has_mask_store
288 (host_integerp ((n),0) \ 386 #define LOOP_VINFO_SCALAR_ITERATION_COST(L) (L)->scalar_cost_vec
289 && TREE_INT_CST_LOW ((n)) > 0) 387 #define LOOP_VINFO_SINGLE_SCALAR_ITERATION_COST(L) (L)->single_scalar_iteration_cost
388 #define LOOP_VINFO_ORIG_LOOP_INFO(L) (L)->orig_loop_info
389
390 #define LOOP_REQUIRES_VERSIONING_FOR_ALIGNMENT(L) \
391 ((L)->may_misalign_stmts.length () > 0)
392 #define LOOP_REQUIRES_VERSIONING_FOR_ALIAS(L) \
393 ((L)->comp_alias_ddrs.length () > 0 \
394 || (L)->check_unequal_addrs.length () > 0)
395 #define LOOP_REQUIRES_VERSIONING_FOR_NITERS(L) \
396 (LOOP_VINFO_NITERS_ASSUMPTIONS (L))
397 #define LOOP_REQUIRES_VERSIONING(L) \
398 (LOOP_REQUIRES_VERSIONING_FOR_ALIGNMENT (L) \
399 || LOOP_REQUIRES_VERSIONING_FOR_ALIAS (L) \
400 || LOOP_REQUIRES_VERSIONING_FOR_NITERS (L))
290 401
291 #define LOOP_VINFO_NITERS_KNOWN_P(L) \ 402 #define LOOP_VINFO_NITERS_KNOWN_P(L) \
292 NITERS_KNOWN_P((L)->num_iters) 403 (tree_fits_shwi_p ((L)->num_iters) && tree_to_shwi ((L)->num_iters) > 0)
404
405 #define LOOP_VINFO_EPILOGUE_P(L) \
406 (LOOP_VINFO_ORIG_LOOP_INFO (L) != NULL)
407
408 #define LOOP_VINFO_ORIG_MAX_VECT_FACTOR(L) \
409 (LOOP_VINFO_MAX_VECT_FACTOR (LOOP_VINFO_ORIG_LOOP_INFO (L)))
293 410
294 static inline loop_vec_info 411 static inline loop_vec_info
295 loop_vec_info_for_loop (struct loop *loop) 412 loop_vec_info_for_loop (struct loop *loop)
296 { 413 {
297 return (loop_vec_info) loop->aux; 414 return (loop_vec_info) loop->aux;
298 } 415 }
299 416
300 static inline bool 417 static inline bool
301 nested_in_vect_loop_p (struct loop *loop, gimple stmt) 418 nested_in_vect_loop_p (struct loop *loop, gimple *stmt)
302 { 419 {
303 return (loop->inner 420 return (loop->inner
304 && (loop->inner == (gimple_bb (stmt))->loop_father)); 421 && (loop->inner == (gimple_bb (stmt))->loop_father));
305 } 422 }
306 423
307 typedef struct _bb_vec_info { 424 typedef struct _bb_vec_info : public vec_info
425 {
426 _bb_vec_info (gimple_stmt_iterator, gimple_stmt_iterator);
427 ~_bb_vec_info ();
308 428
309 basic_block bb; 429 basic_block bb;
310 /* All interleaving chains of stores in the basic block, represented by the 430 gimple_stmt_iterator region_begin;
311 first stmt in the chain. */ 431 gimple_stmt_iterator region_end;
312 VEC(gimple, heap) *strided_stores;
313
314 /* All SLP instances in the basic block. This is a subset of the set of
315 STRIDED_STORES of the basic block. */
316 VEC(slp_instance, heap) *slp_instances;
317
318 /* All data references in the basic block. */
319 VEC (data_reference_p, heap) *datarefs;
320
321 /* All data dependences in the basic block. */
322 VEC (ddr_p, heap) *ddrs;
323 } *bb_vec_info; 432 } *bb_vec_info;
324 433
325 #define BB_VINFO_BB(B) (B)->bb 434 #define BB_VINFO_BB(B) (B)->bb
326 #define BB_VINFO_STRIDED_STORES(B) (B)->strided_stores 435 #define BB_VINFO_GROUPED_STORES(B) (B)->grouped_stores
327 #define BB_VINFO_SLP_INSTANCES(B) (B)->slp_instances 436 #define BB_VINFO_SLP_INSTANCES(B) (B)->slp_instances
328 #define BB_VINFO_DATAREFS(B) (B)->datarefs 437 #define BB_VINFO_DATAREFS(B) (B)->datarefs
329 #define BB_VINFO_DDRS(B) (B)->ddrs 438 #define BB_VINFO_DDRS(B) (B)->ddrs
439 #define BB_VINFO_TARGET_COST_DATA(B) (B)->target_cost_data
330 440
331 static inline bb_vec_info 441 static inline bb_vec_info
332 vec_info_for_bb (basic_block bb) 442 vec_info_for_bb (basic_block bb)
333 { 443 {
334 return (bb_vec_info) bb->aux; 444 return (bb_vec_info) bb->aux;
342 load_vec_info_type, 452 load_vec_info_type,
343 store_vec_info_type, 453 store_vec_info_type,
344 shift_vec_info_type, 454 shift_vec_info_type,
345 op_vec_info_type, 455 op_vec_info_type,
346 call_vec_info_type, 456 call_vec_info_type,
457 call_simd_clone_vec_info_type,
347 assignment_vec_info_type, 458 assignment_vec_info_type,
348 condition_vec_info_type, 459 condition_vec_info_type,
460 comparison_vec_info_type,
349 reduc_vec_info_type, 461 reduc_vec_info_type,
350 induc_vec_info_type, 462 induc_vec_info_type,
351 type_promotion_vec_info_type, 463 type_promotion_vec_info_type,
352 type_demotion_vec_info_type, 464 type_demotion_vec_info_type,
353 type_conversion_vec_info_type, 465 type_conversion_vec_info_type,
356 468
357 /* Indicates whether/how a variable is used in the scope of loop/basic 469 /* Indicates whether/how a variable is used in the scope of loop/basic
358 block. */ 470 block. */
359 enum vect_relevant { 471 enum vect_relevant {
360 vect_unused_in_scope = 0, 472 vect_unused_in_scope = 0,
473
474 /* The def is only used outside the loop. */
475 vect_used_only_live,
361 /* The def is in the inner loop, and the use is in the outer loop, and the 476 /* The def is in the inner loop, and the use is in the outer loop, and the
362 use is a reduction stmt. */ 477 use is a reduction stmt. */
363 vect_used_in_outer_by_reduction, 478 vect_used_in_outer_by_reduction,
364 /* The def is in the inner loop, and the use is in the outer loop (and is 479 /* The def is in the inner loop, and the use is in the outer loop (and is
365 not part of reduction). */ 480 not part of reduction). */
396 loop_vect = 0, 511 loop_vect = 0,
397 pure_slp, 512 pure_slp,
398 hybrid 513 hybrid
399 }; 514 };
400 515
516 /* Describes how we're going to vectorize an individual load or store,
517 or a group of loads or stores. */
518 enum vect_memory_access_type {
519 /* An access to an invariant address. This is used only for loads. */
520 VMAT_INVARIANT,
521
522 /* A simple contiguous access. */
523 VMAT_CONTIGUOUS,
524
525 /* A contiguous access that goes down in memory rather than up,
526 with no additional permutation. This is used only for stores
527 of invariants. */
528 VMAT_CONTIGUOUS_DOWN,
529
530 /* A simple contiguous access in which the elements need to be permuted
531 after loading or before storing. Only used for loop vectorization;
532 SLP uses separate permutes. */
533 VMAT_CONTIGUOUS_PERMUTE,
534
535 /* A simple contiguous access in which the elements need to be reversed
536 after loading or before storing. */
537 VMAT_CONTIGUOUS_REVERSE,
538
539 /* An access that uses IFN_LOAD_LANES or IFN_STORE_LANES. */
540 VMAT_LOAD_STORE_LANES,
541
542 /* An access in which each scalar element is loaded or stored
543 individually. */
544 VMAT_ELEMENTWISE,
545
546 /* A hybrid of VMAT_CONTIGUOUS and VMAT_ELEMENTWISE, used for grouped
547 SLP accesses. Each unrolled iteration uses a contiguous load
548 or store for the whole group, but the groups from separate iterations
549 are combined in the same way as for VMAT_ELEMENTWISE. */
550 VMAT_STRIDED_SLP,
551
552 /* The access uses gather loads or scatter stores. */
553 VMAT_GATHER_SCATTER
554 };
401 555
402 typedef struct data_reference *dr_p; 556 typedef struct data_reference *dr_p;
403 DEF_VEC_P(dr_p);
404 DEF_VEC_ALLOC_P(dr_p,heap);
405 557
406 typedef struct _stmt_vec_info { 558 typedef struct _stmt_vec_info {
407 559
408 enum stmt_vec_info_type type; 560 enum stmt_vec_info_type type;
409 561
412 bool live; 564 bool live;
413 565
414 /* Stmt is part of some pattern (computation idiom) */ 566 /* Stmt is part of some pattern (computation idiom) */
415 bool in_pattern_p; 567 bool in_pattern_p;
416 568
417 /* For loads only, if there is a store with the same location, this field is 569 /* Is this statement vectorizable or should it be skipped in (partial)
418 TRUE. */ 570 vectorization. */
419 bool read_write_dep; 571 bool vectorizable;
420 572
421 /* The stmt to which this info struct refers to. */ 573 /* The stmt to which this info struct refers to. */
422 gimple stmt; 574 gimple *stmt;
423 575
424 /* The loop_vec_info with respect to which STMT is vectorized. */ 576 /* The vec_info with respect to which STMT is vectorized. */
425 loop_vec_info loop_vinfo; 577 vec_info *vinfo;
426 578
427 /* The vector type to be used for the LHS of this statement. */ 579 /* The vector type to be used for the LHS of this statement. */
428 tree vectype; 580 tree vectype;
429 581
430 /* The vectorized version of the stmt. */ 582 /* The vectorized version of the stmt. */
431 gimple vectorized_stmt; 583 gimple *vectorized_stmt;
432 584
433 585
434 /** The following is relevant only for stmts that contain a non-scalar 586 /* The following is relevant only for stmts that contain a non-scalar
435 data-ref (array/pointer/struct access). A GIMPLE stmt is expected to have 587 data-ref (array/pointer/struct access). A GIMPLE stmt is expected to have
436 at most one such data-ref. **/ 588 at most one such data-ref. */
437 589
438 /* Information about the data-ref (access function, etc), 590 /* Information about the data-ref (access function, etc),
439 relative to the inner-most containing loop. */ 591 relative to the inner-most containing loop. */
440 struct data_reference *data_ref_info; 592 struct data_reference *data_ref_info;
441 593
442 /* Information about the data-ref relative to this loop 594 /* Information about the data-ref relative to this loop
443 nest (the loop that is being considered for vectorization). */ 595 nest (the loop that is being considered for vectorization). */
444 tree dr_base_address; 596 innermost_loop_behavior dr_wrt_vec_loop;
445 tree dr_init; 597
446 tree dr_offset; 598 /* For loop PHI nodes, the base and evolution part of it. This makes sure
447 tree dr_step; 599 this information is still available in vect_update_ivs_after_vectorizer
448 tree dr_aligned_to; 600 where we may not be able to re-analyze the PHI nodes evolution as
601 peeling for the prologue loop can make it unanalyzable. The evolution
602 part is still correct after peeling, but the base may have changed from
603 the version here. */
604 tree loop_phi_evolution_base_unchanged;
605 tree loop_phi_evolution_part;
449 606
450 /* Used for various bookkeeping purposes, generally holding a pointer to 607 /* Used for various bookkeeping purposes, generally holding a pointer to
451 some other stmt S that is in some way "related" to this stmt. 608 some other stmt S that is in some way "related" to this stmt.
452 Current use of this field is: 609 Current use of this field is:
453 If this stmt is part of a pattern (i.e. the field 'in_pattern_p' is 610 If this stmt is part of a pattern (i.e. the field 'in_pattern_p' is
454 true): S is the "pattern stmt" that represents (and replaces) the 611 true): S is the "pattern stmt" that represents (and replaces) the
455 sequence of stmts that constitutes the pattern. Similarly, the 612 sequence of stmts that constitutes the pattern. Similarly, the
456 related_stmt of the "pattern stmt" points back to this stmt (which is 613 related_stmt of the "pattern stmt" points back to this stmt (which is
457 the last stmt in the original sequence of stmts that constitutes the 614 the last stmt in the original sequence of stmts that constitutes the
458 pattern). */ 615 pattern). */
459 gimple related_stmt; 616 gimple *related_stmt;
617
618 /* Used to keep a sequence of def stmts of a pattern stmt if such exists. */
619 gimple_seq pattern_def_seq;
460 620
461 /* List of datarefs that are known to have the same alignment as the dataref 621 /* List of datarefs that are known to have the same alignment as the dataref
462 of this stmt. */ 622 of this stmt. */
463 VEC(dr_p,heap) *same_align_refs; 623 vec<dr_p> same_align_refs;
624
625 /* Selected SIMD clone's function info. First vector element
626 is SIMD clone's function decl, followed by a pair of trees (base + step)
627 for linear arguments (pair of NULLs for other arguments). */
628 vec<tree> simd_clone_info;
464 629
465 /* Classify the def of this stmt. */ 630 /* Classify the def of this stmt. */
466 enum vect_def_type def_type; 631 enum vect_def_type def_type;
467 632
468 /* Whether the stmt is SLPed, loop-based vectorized, or both. */ 633 /* Whether the stmt is SLPed, loop-based vectorized, or both. */
469 enum slp_vect_type slp_type; 634 enum slp_vect_type slp_type;
470 635
471 /* Interleaving info. */ 636 /* Interleaving and reduction chains info. */
472 /* First data-ref in the interleaving group. */ 637 /* First element in the group. */
473 gimple first_dr; 638 gimple *first_element;
474 /* Pointer to the next data-ref in the group. */ 639 /* Pointer to the next element in the group. */
475 gimple next_dr; 640 gimple *next_element;
476 /* In case that two or more stmts share data-ref, this is the pointer to the 641 /* For data-refs, in case that two or more stmts share data-ref, this is the
477 previously detected stmt with the same dr. */ 642 pointer to the previously detected stmt with the same dr. */
478 gimple same_dr_stmt; 643 gimple *same_dr_stmt;
479 /* The size of the interleaving group. */ 644 /* The size of the group. */
480 unsigned int size; 645 unsigned int size;
481 /* For stores, number of stores from this group seen. We vectorize the last 646 /* For stores, number of stores from this group seen. We vectorize the last
482 one. */ 647 one. */
483 unsigned int store_count; 648 unsigned int store_count;
484 /* For loads only, the gap from the previous load. For consecutive loads, GAP 649 /* For loads only, the gap from the previous load. For consecutive loads, GAP
485 is 1. */ 650 is 1. */
486 unsigned int gap; 651 unsigned int gap;
487 652
653 /* The minimum negative dependence distance this stmt participates in
654 or zero if none. */
655 unsigned int min_neg_dist;
656
488 /* Not all stmts in the loop need to be vectorized. e.g, the increment 657 /* Not all stmts in the loop need to be vectorized. e.g, the increment
489 of the loop induction variable and computation of array indexes. relevant 658 of the loop induction variable and computation of array indexes. relevant
490 indicates whether the stmt needs to be vectorized. */ 659 indicates whether the stmt needs to be vectorized. */
491 enum vect_relevant relevant; 660 enum vect_relevant relevant;
492 661
493 /* Vectorization costs associated with statement. */ 662 /* For loads if this is a gather, for stores if this is a scatter. */
494 struct 663 bool gather_scatter_p;
495 { 664
496 int outside_of_loop; /* Statements generated outside loop. */ 665 /* True if this is an access with loop-invariant stride. */
497 int inside_of_loop; /* Statements generated inside loop. */ 666 bool strided_p;
498 } cost; 667
499 668 /* For both loads and stores. */
500 /* The bb_vec_info with respect to which STMT is vectorized. */ 669 bool simd_lane_access_p;
501 bb_vec_info bb_vinfo; 670
502 671 /* Classifies how the load or store is going to be implemented
503 /* Is this statement vectorizable or should it be skipped in (partial) 672 for loop vectorization. */
504 vectorization. */ 673 vect_memory_access_type memory_access_type;
505 bool vectorizable; 674
675 /* For reduction loops, this is the type of reduction. */
676 enum vect_reduction_type v_reduc_type;
677
678 /* For CONST_COND_REDUCTION, record the reduc code. */
679 enum tree_code const_cond_reduc_code;
680
681 /* On a reduction PHI the reduction type as detected by
682 vect_force_simple_reduction. */
683 enum vect_reduction_type reduc_type;
684
685 /* On a reduction PHI the def returned by vect_force_simple_reduction.
686 On the def returned by vect_force_simple_reduction the
687 corresponding PHI. */
688 gimple *reduc_def;
689
690 /* The number of scalar stmt references from active SLP instances. */
691 unsigned int num_slp_uses;
506 } *stmt_vec_info; 692 } *stmt_vec_info;
693
694 /* Information about a gather/scatter call. */
695 struct gather_scatter_info {
696 /* The FUNCTION_DECL for the built-in gather/scatter function. */
697 tree decl;
698
699 /* The loop-invariant base value. */
700 tree base;
701
702 /* The original scalar offset, which is a non-loop-invariant SSA_NAME. */
703 tree offset;
704
705 /* Each offset element should be multiplied by this amount before
706 being added to the base. */
707 int scale;
708
709 /* The definition type for the vectorized offset. */
710 enum vect_def_type offset_dt;
711
712 /* The type of the vectorized offset. */
713 tree offset_vectype;
714 };
507 715
508 /* Access Functions. */ 716 /* Access Functions. */
509 #define STMT_VINFO_TYPE(S) (S)->type 717 #define STMT_VINFO_TYPE(S) (S)->type
510 #define STMT_VINFO_STMT(S) (S)->stmt 718 #define STMT_VINFO_STMT(S) (S)->stmt
511 #define STMT_VINFO_LOOP_VINFO(S) (S)->loop_vinfo 719 inline loop_vec_info
512 #define STMT_VINFO_BB_VINFO(S) (S)->bb_vinfo 720 STMT_VINFO_LOOP_VINFO (stmt_vec_info stmt_vinfo)
721 {
722 if (loop_vec_info loop_vinfo = dyn_cast <loop_vec_info> (stmt_vinfo->vinfo))
723 return loop_vinfo;
724 return NULL;
725 }
726 inline bb_vec_info
727 STMT_VINFO_BB_VINFO (stmt_vec_info stmt_vinfo)
728 {
729 if (bb_vec_info bb_vinfo = dyn_cast <bb_vec_info> (stmt_vinfo->vinfo))
730 return bb_vinfo;
731 return NULL;
732 }
513 #define STMT_VINFO_RELEVANT(S) (S)->relevant 733 #define STMT_VINFO_RELEVANT(S) (S)->relevant
514 #define STMT_VINFO_LIVE_P(S) (S)->live 734 #define STMT_VINFO_LIVE_P(S) (S)->live
515 #define STMT_VINFO_VECTYPE(S) (S)->vectype 735 #define STMT_VINFO_VECTYPE(S) (S)->vectype
516 #define STMT_VINFO_VEC_STMT(S) (S)->vectorized_stmt 736 #define STMT_VINFO_VEC_STMT(S) (S)->vectorized_stmt
517 #define STMT_VINFO_VECTORIZABLE(S) (S)->vectorizable 737 #define STMT_VINFO_VECTORIZABLE(S) (S)->vectorizable
518 #define STMT_VINFO_DATA_REF(S) (S)->data_ref_info 738 #define STMT_VINFO_DATA_REF(S) (S)->data_ref_info
519 739 #define STMT_VINFO_GATHER_SCATTER_P(S) (S)->gather_scatter_p
520 #define STMT_VINFO_DR_BASE_ADDRESS(S) (S)->dr_base_address 740 #define STMT_VINFO_STRIDED_P(S) (S)->strided_p
521 #define STMT_VINFO_DR_INIT(S) (S)->dr_init 741 #define STMT_VINFO_MEMORY_ACCESS_TYPE(S) (S)->memory_access_type
522 #define STMT_VINFO_DR_OFFSET(S) (S)->dr_offset 742 #define STMT_VINFO_SIMD_LANE_ACCESS_P(S) (S)->simd_lane_access_p
523 #define STMT_VINFO_DR_STEP(S) (S)->dr_step 743 #define STMT_VINFO_VEC_REDUCTION_TYPE(S) (S)->v_reduc_type
524 #define STMT_VINFO_DR_ALIGNED_TO(S) (S)->dr_aligned_to 744 #define STMT_VINFO_VEC_CONST_COND_REDUC_CODE(S) (S)->const_cond_reduc_code
745
746 #define STMT_VINFO_DR_WRT_VEC_LOOP(S) (S)->dr_wrt_vec_loop
747 #define STMT_VINFO_DR_BASE_ADDRESS(S) (S)->dr_wrt_vec_loop.base_address
748 #define STMT_VINFO_DR_INIT(S) (S)->dr_wrt_vec_loop.init
749 #define STMT_VINFO_DR_OFFSET(S) (S)->dr_wrt_vec_loop.offset
750 #define STMT_VINFO_DR_STEP(S) (S)->dr_wrt_vec_loop.step
751 #define STMT_VINFO_DR_BASE_ALIGNMENT(S) (S)->dr_wrt_vec_loop.base_alignment
752 #define STMT_VINFO_DR_BASE_MISALIGNMENT(S) \
753 (S)->dr_wrt_vec_loop.base_misalignment
754 #define STMT_VINFO_DR_OFFSET_ALIGNMENT(S) \
755 (S)->dr_wrt_vec_loop.offset_alignment
756 #define STMT_VINFO_DR_STEP_ALIGNMENT(S) \
757 (S)->dr_wrt_vec_loop.step_alignment
525 758
526 #define STMT_VINFO_IN_PATTERN_P(S) (S)->in_pattern_p 759 #define STMT_VINFO_IN_PATTERN_P(S) (S)->in_pattern_p
527 #define STMT_VINFO_RELATED_STMT(S) (S)->related_stmt 760 #define STMT_VINFO_RELATED_STMT(S) (S)->related_stmt
761 #define STMT_VINFO_PATTERN_DEF_SEQ(S) (S)->pattern_def_seq
528 #define STMT_VINFO_SAME_ALIGN_REFS(S) (S)->same_align_refs 762 #define STMT_VINFO_SAME_ALIGN_REFS(S) (S)->same_align_refs
763 #define STMT_VINFO_SIMD_CLONE_INFO(S) (S)->simd_clone_info
529 #define STMT_VINFO_DEF_TYPE(S) (S)->def_type 764 #define STMT_VINFO_DEF_TYPE(S) (S)->def_type
530 #define STMT_VINFO_DR_GROUP_FIRST_DR(S) (S)->first_dr 765 #define STMT_VINFO_GROUP_FIRST_ELEMENT(S) (S)->first_element
531 #define STMT_VINFO_DR_GROUP_NEXT_DR(S) (S)->next_dr 766 #define STMT_VINFO_GROUP_NEXT_ELEMENT(S) (S)->next_element
532 #define STMT_VINFO_DR_GROUP_SIZE(S) (S)->size 767 #define STMT_VINFO_GROUP_SIZE(S) (S)->size
533 #define STMT_VINFO_DR_GROUP_STORE_COUNT(S) (S)->store_count 768 #define STMT_VINFO_GROUP_STORE_COUNT(S) (S)->store_count
534 #define STMT_VINFO_DR_GROUP_GAP(S) (S)->gap 769 #define STMT_VINFO_GROUP_GAP(S) (S)->gap
535 #define STMT_VINFO_DR_GROUP_SAME_DR_STMT(S)(S)->same_dr_stmt 770 #define STMT_VINFO_GROUP_SAME_DR_STMT(S) (S)->same_dr_stmt
536 #define STMT_VINFO_DR_GROUP_READ_WRITE_DEPENDENCE(S) (S)->read_write_dep 771 #define STMT_VINFO_GROUPED_ACCESS(S) ((S)->first_element != NULL && (S)->data_ref_info)
537 #define STMT_VINFO_STRIDED_ACCESS(S) ((S)->first_dr != NULL) 772 #define STMT_VINFO_LOOP_PHI_EVOLUTION_BASE_UNCHANGED(S) (S)->loop_phi_evolution_base_unchanged
538 773 #define STMT_VINFO_LOOP_PHI_EVOLUTION_PART(S) (S)->loop_phi_evolution_part
539 #define DR_GROUP_FIRST_DR(S) (S)->first_dr 774 #define STMT_VINFO_MIN_NEG_DIST(S) (S)->min_neg_dist
540 #define DR_GROUP_NEXT_DR(S) (S)->next_dr 775 #define STMT_VINFO_NUM_SLP_USES(S) (S)->num_slp_uses
541 #define DR_GROUP_SIZE(S) (S)->size 776 #define STMT_VINFO_REDUC_TYPE(S) (S)->reduc_type
542 #define DR_GROUP_STORE_COUNT(S) (S)->store_count 777 #define STMT_VINFO_REDUC_DEF(S) (S)->reduc_def
543 #define DR_GROUP_GAP(S) (S)->gap 778
544 #define DR_GROUP_SAME_DR_STMT(S) (S)->same_dr_stmt 779 #define GROUP_FIRST_ELEMENT(S) (S)->first_element
545 #define DR_GROUP_READ_WRITE_DEPENDENCE(S) (S)->read_write_dep 780 #define GROUP_NEXT_ELEMENT(S) (S)->next_element
781 #define GROUP_SIZE(S) (S)->size
782 #define GROUP_STORE_COUNT(S) (S)->store_count
783 #define GROUP_GAP(S) (S)->gap
784 #define GROUP_SAME_DR_STMT(S) (S)->same_dr_stmt
546 785
547 #define STMT_VINFO_RELEVANT_P(S) ((S)->relevant != vect_unused_in_scope) 786 #define STMT_VINFO_RELEVANT_P(S) ((S)->relevant != vect_unused_in_scope)
548 #define STMT_VINFO_OUTSIDE_OF_LOOP_COST(S) (S)->cost.outside_of_loop
549 #define STMT_VINFO_INSIDE_OF_LOOP_COST(S) (S)->cost.inside_of_loop
550 787
551 #define HYBRID_SLP_STMT(S) ((S)->slp_type == hybrid) 788 #define HYBRID_SLP_STMT(S) ((S)->slp_type == hybrid)
552 #define PURE_SLP_STMT(S) ((S)->slp_type == pure_slp) 789 #define PURE_SLP_STMT(S) ((S)->slp_type == pure_slp)
553 #define STMT_SLP_TYPE(S) (S)->slp_type 790 #define STMT_SLP_TYPE(S) (S)->slp_type
554 791
792 struct dataref_aux {
793 /* The misalignment in bytes of the reference, or -1 if not known. */
794 int misalignment;
795 /* The byte alignment that we'd ideally like the reference to have,
796 and the value that misalignment is measured against. */
797 int target_alignment;
798 /* If true the alignment of base_decl needs to be increased. */
799 bool base_misaligned;
800 tree base_decl;
801 };
802
803 #define DR_VECT_AUX(dr) ((dataref_aux *)(dr)->aux)
804
555 #define VECT_MAX_COST 1000 805 #define VECT_MAX_COST 1000
556 806
557 /* The maximum number of intermediate steps required in multi-step type 807 /* The maximum number of intermediate steps required in multi-step type
558 conversion. */ 808 conversion. */
559 #define MAX_INTERM_CVT_STEPS 3 809 #define MAX_INTERM_CVT_STEPS 3
560 810
561 /* The maximum vectorization factor supported by any target (V32QI). */ 811 /* The maximum vectorization factor supported by any target (V64QI). */
562 #define MAX_VECTORIZATION_FACTOR 32 812 #define MAX_VECTORIZATION_FACTOR 64
563 813
564 /* Avoid GTY(()) on stmt_vec_info. */ 814 /* Nonzero if TYPE represents a (scalar) boolean type or type
565 typedef void *vec_void_p; 815 in the middle-end compatible with it (unsigned precision 1 integral
566 DEF_VEC_P (vec_void_p); 816 types). Used to determine which types should be vectorized as
567 DEF_VEC_ALLOC_P (vec_void_p, heap); 817 VECTOR_BOOLEAN_TYPE_P. */
568 818
569 extern VEC(vec_void_p,heap) *stmt_vec_info_vec; 819 #define VECT_SCALAR_BOOLEAN_TYPE_P(TYPE) \
820 (TREE_CODE (TYPE) == BOOLEAN_TYPE \
821 || ((TREE_CODE (TYPE) == INTEGER_TYPE \
822 || TREE_CODE (TYPE) == ENUMERAL_TYPE) \
823 && TYPE_PRECISION (TYPE) == 1 \
824 && TYPE_UNSIGNED (TYPE)))
825
826 extern vec<stmt_vec_info> stmt_vec_info_vec;
570 827
571 void init_stmt_vec_info_vec (void); 828 void init_stmt_vec_info_vec (void);
572 void free_stmt_vec_info_vec (void); 829 void free_stmt_vec_info_vec (void);
573 830
574 /* Return a stmt_vec_info corresponding to STMT. */ 831 /* Return a stmt_vec_info corresponding to STMT. */
575 832
576 static inline stmt_vec_info 833 static inline stmt_vec_info
577 vinfo_for_stmt (gimple stmt) 834 vinfo_for_stmt (gimple *stmt)
578 { 835 {
579 unsigned int uid = gimple_uid (stmt); 836 int uid = gimple_uid (stmt);
580 if (uid == 0) 837 if (uid <= 0)
581 return NULL; 838 return NULL;
582 839
583 return (stmt_vec_info) VEC_index (vec_void_p, stmt_vec_info_vec, uid - 1); 840 return stmt_vec_info_vec[uid - 1];
584 } 841 }
585 842
586 /* Set vectorizer information INFO for STMT. */ 843 /* Set vectorizer information INFO for STMT. */
587 844
588 static inline void 845 static inline void
589 set_vinfo_for_stmt (gimple stmt, stmt_vec_info info) 846 set_vinfo_for_stmt (gimple *stmt, stmt_vec_info info)
590 { 847 {
591 unsigned int uid = gimple_uid (stmt); 848 unsigned int uid = gimple_uid (stmt);
592 if (uid == 0) 849 if (uid == 0)
593 { 850 {
594 gcc_checking_assert (info); 851 gcc_checking_assert (info);
595 uid = VEC_length (vec_void_p, stmt_vec_info_vec) + 1; 852 uid = stmt_vec_info_vec.length () + 1;
596 gimple_set_uid (stmt, uid); 853 gimple_set_uid (stmt, uid);
597 VEC_safe_push (vec_void_p, heap, stmt_vec_info_vec, (vec_void_p) info); 854 stmt_vec_info_vec.safe_push (info);
598 } 855 }
599 else 856 else
600 VEC_replace (vec_void_p, stmt_vec_info_vec, uid - 1, (vec_void_p) info); 857 {
858 gcc_checking_assert (info == NULL);
859 stmt_vec_info_vec[uid - 1] = info;
860 }
601 } 861 }
602 862
603 /* Return the earlier statement between STMT1 and STMT2. */ 863 /* Return the earlier statement between STMT1 and STMT2. */
604 864
605 static inline gimple 865 static inline gimple *
606 get_earlier_stmt (gimple stmt1, gimple stmt2) 866 get_earlier_stmt (gimple *stmt1, gimple *stmt2)
607 { 867 {
608 unsigned int uid1, uid2; 868 unsigned int uid1, uid2;
609 869
610 if (stmt1 == NULL) 870 if (stmt1 == NULL)
611 return stmt2; 871 return stmt2;
617 uid2 = gimple_uid (stmt2); 877 uid2 = gimple_uid (stmt2);
618 878
619 if (uid1 == 0 || uid2 == 0) 879 if (uid1 == 0 || uid2 == 0)
620 return NULL; 880 return NULL;
621 881
622 gcc_checking_assert (uid1 <= VEC_length (vec_void_p, stmt_vec_info_vec) 882 gcc_checking_assert (uid1 <= stmt_vec_info_vec.length ()
623 && uid2 <= VEC_length (vec_void_p, stmt_vec_info_vec)); 883 && uid2 <= stmt_vec_info_vec.length ());
624 884
625 if (uid1 < uid2) 885 if (uid1 < uid2)
626 return stmt1; 886 return stmt1;
627 else 887 else
628 return stmt2; 888 return stmt2;
629 } 889 }
630 890
631 /* Return the later statement between STMT1 and STMT2. */ 891 /* Return the later statement between STMT1 and STMT2. */
632 892
633 static inline gimple 893 static inline gimple *
634 get_later_stmt (gimple stmt1, gimple stmt2) 894 get_later_stmt (gimple *stmt1, gimple *stmt2)
635 { 895 {
636 unsigned int uid1, uid2; 896 unsigned int uid1, uid2;
637 897
638 if (stmt1 == NULL) 898 if (stmt1 == NULL)
639 return stmt2; 899 return stmt2;
645 uid2 = gimple_uid (stmt2); 905 uid2 = gimple_uid (stmt2);
646 906
647 if (uid1 == 0 || uid2 == 0) 907 if (uid1 == 0 || uid2 == 0)
648 return NULL; 908 return NULL;
649 909
650 gcc_assert (uid1 <= VEC_length (vec_void_p, stmt_vec_info_vec)); 910 gcc_assert (uid1 <= stmt_vec_info_vec.length ());
651 gcc_assert (uid2 <= VEC_length (vec_void_p, stmt_vec_info_vec)); 911 gcc_assert (uid2 <= stmt_vec_info_vec.length ());
652 912
653 if (uid1 > uid2) 913 if (uid1 > uid2)
654 return stmt1; 914 return stmt1;
655 else 915 else
656 return stmt2; 916 return stmt2;
660 pattern. */ 920 pattern. */
661 921
662 static inline bool 922 static inline bool
663 is_pattern_stmt_p (stmt_vec_info stmt_info) 923 is_pattern_stmt_p (stmt_vec_info stmt_info)
664 { 924 {
665 gimple related_stmt; 925 gimple *related_stmt;
666 stmt_vec_info related_stmt_info; 926 stmt_vec_info related_stmt_info;
667 927
668 related_stmt = STMT_VINFO_RELATED_STMT (stmt_info); 928 related_stmt = STMT_VINFO_RELATED_STMT (stmt_info);
669 if (related_stmt 929 if (related_stmt
670 && (related_stmt_info = vinfo_for_stmt (related_stmt)) 930 && (related_stmt_info = vinfo_for_stmt (related_stmt))
683 return true; 943 return true;
684 gcc_checking_assert (EDGE_COUNT (bb->preds) == 1); 944 gcc_checking_assert (EDGE_COUNT (bb->preds) == 1);
685 return false; 945 return false;
686 } 946 }
687 947
688 /* Set inside loop vectorization cost. */
689
690 static inline void
691 stmt_vinfo_set_inside_of_loop_cost (stmt_vec_info stmt_info, slp_tree slp_node,
692 int cost)
693 {
694 if (slp_node)
695 SLP_TREE_INSIDE_OF_LOOP_COST (slp_node) = cost;
696 else
697 STMT_VINFO_INSIDE_OF_LOOP_COST (stmt_info) = cost;
698 }
699
700 /* Set inside loop vectorization cost. */
701
702 static inline void
703 stmt_vinfo_set_outside_of_loop_cost (stmt_vec_info stmt_info, slp_tree slp_node,
704 int cost)
705 {
706 if (slp_node)
707 SLP_TREE_OUTSIDE_OF_LOOP_COST (slp_node) = cost;
708 else
709 STMT_VINFO_OUTSIDE_OF_LOOP_COST (stmt_info) = cost;
710 }
711
712 /* Return pow2 (X). */ 948 /* Return pow2 (X). */
713 949
714 static inline int 950 static inline int
715 vect_pow2 (int x) 951 vect_pow2 (int x)
716 { 952 {
718 954
719 for (i = 0; i < x; i++) 955 for (i = 0; i < x; i++)
720 res *= 2; 956 res *= 2;
721 957
722 return res; 958 return res;
959 }
960
961 /* Alias targetm.vectorize.builtin_vectorization_cost. */
962
963 static inline int
964 builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
965 tree vectype, int misalign)
966 {
967 return targetm.vectorize.builtin_vectorization_cost (type_of_cost,
968 vectype, misalign);
969 }
970
971 /* Get cost by calling cost target builtin. */
972
973 static inline
974 int vect_get_stmt_cost (enum vect_cost_for_stmt type_of_cost)
975 {
976 return builtin_vectorization_cost (type_of_cost, NULL, 0);
977 }
978
979 /* Alias targetm.vectorize.init_cost. */
980
981 static inline void *
982 init_cost (struct loop *loop_info)
983 {
984 return targetm.vectorize.init_cost (loop_info);
985 }
986
987 /* Alias targetm.vectorize.add_stmt_cost. */
988
989 static inline unsigned
990 add_stmt_cost (void *data, int count, enum vect_cost_for_stmt kind,
991 stmt_vec_info stmt_info, int misalign,
992 enum vect_cost_model_location where)
993 {
994 return targetm.vectorize.add_stmt_cost (data, count, kind,
995 stmt_info, misalign, where);
996 }
997
998 /* Alias targetm.vectorize.finish_cost. */
999
1000 static inline void
1001 finish_cost (void *data, unsigned *prologue_cost,
1002 unsigned *body_cost, unsigned *epilogue_cost)
1003 {
1004 targetm.vectorize.finish_cost (data, prologue_cost, body_cost, epilogue_cost);
1005 }
1006
1007 /* Alias targetm.vectorize.destroy_cost_data. */
1008
1009 static inline void
1010 destroy_cost_data (void *data)
1011 {
1012 targetm.vectorize.destroy_cost_data (data);
723 } 1013 }
724 1014
725 /*-----------------------------------------------------------------*/ 1015 /*-----------------------------------------------------------------*/
726 /* Info on data references alignment. */ 1016 /* Info on data references alignment. */
727 /*-----------------------------------------------------------------*/ 1017 /*-----------------------------------------------------------------*/
1018 inline void
1019 set_dr_misalignment (struct data_reference *dr, int val)
1020 {
1021 dataref_aux *data_aux = DR_VECT_AUX (dr);
1022
1023 if (!data_aux)
1024 {
1025 data_aux = XCNEW (dataref_aux);
1026 dr->aux = data_aux;
1027 }
1028
1029 data_aux->misalignment = val;
1030 }
1031
1032 inline int
1033 dr_misalignment (struct data_reference *dr)
1034 {
1035 return DR_VECT_AUX (dr)->misalignment;
1036 }
728 1037
729 /* Reflects actual alignment of first access in the vectorized loop, 1038 /* Reflects actual alignment of first access in the vectorized loop,
730 taking into account peeling/versioning if applied. */ 1039 taking into account peeling/versioning if applied. */
731 #define DR_MISALIGNMENT(DR) ((int) (size_t) (DR)->aux) 1040 #define DR_MISALIGNMENT(DR) dr_misalignment (DR)
732 #define SET_DR_MISALIGNMENT(DR, VAL) ((DR)->aux = (void *) (size_t) (VAL)) 1041 #define SET_DR_MISALIGNMENT(DR, VAL) set_dr_misalignment (DR, VAL)
733 1042 #define DR_MISALIGNMENT_UNKNOWN (-1)
734 /* Return TRUE if the data access is aligned, and FALSE otherwise. */ 1043
1044 /* Only defined once DR_MISALIGNMENT is defined. */
1045 #define DR_TARGET_ALIGNMENT(DR) DR_VECT_AUX (DR)->target_alignment
1046
1047 /* Return true if data access DR is aligned to its target alignment
1048 (which may be less than a full vector). */
735 1049
736 static inline bool 1050 static inline bool
737 aligned_access_p (struct data_reference *data_ref_info) 1051 aligned_access_p (struct data_reference *data_ref_info)
738 { 1052 {
739 return (DR_MISALIGNMENT (data_ref_info) == 0); 1053 return (DR_MISALIGNMENT (data_ref_info) == 0);
743 otherwise. */ 1057 otherwise. */
744 1058
745 static inline bool 1059 static inline bool
746 known_alignment_for_access_p (struct data_reference *data_ref_info) 1060 known_alignment_for_access_p (struct data_reference *data_ref_info)
747 { 1061 {
748 return (DR_MISALIGNMENT (data_ref_info) != -1); 1062 return (DR_MISALIGNMENT (data_ref_info) != DR_MISALIGNMENT_UNKNOWN);
749 } 1063 }
750 1064
751 /* vect_dump will be set to stderr or dump_file if exist. */ 1065 /* Return the minimum alignment in bytes that the vectorized version
752 extern FILE *vect_dump; 1066 of DR is guaranteed to have. */
753 extern LOC vect_loop_location; 1067
1068 static inline unsigned int
1069 vect_known_alignment_in_bytes (struct data_reference *dr)
1070 {
1071 if (DR_MISALIGNMENT (dr) == DR_MISALIGNMENT_UNKNOWN)
1072 return TYPE_ALIGN_UNIT (TREE_TYPE (DR_REF (dr)));
1073 if (DR_MISALIGNMENT (dr) == 0)
1074 return DR_TARGET_ALIGNMENT (dr);
1075 return DR_MISALIGNMENT (dr) & -DR_MISALIGNMENT (dr);
1076 }
1077
1078 /* Return the behavior of DR with respect to the vectorization context
1079 (which for outer loop vectorization might not be the behavior recorded
1080 in DR itself). */
1081
1082 static inline innermost_loop_behavior *
1083 vect_dr_behavior (data_reference *dr)
1084 {
1085 gimple *stmt = DR_STMT (dr);
1086 stmt_vec_info stmt_info = vinfo_for_stmt (stmt);
1087 loop_vec_info loop_vinfo = STMT_VINFO_LOOP_VINFO (stmt_info);
1088 if (loop_vinfo == NULL
1089 || !nested_in_vect_loop_p (LOOP_VINFO_LOOP (loop_vinfo), stmt))
1090 return &DR_INNERMOST (dr);
1091 else
1092 return &STMT_VINFO_DR_WRT_VEC_LOOP (stmt_info);
1093 }
1094
1095 /* Return true if the vect cost model is unlimited. */
1096 static inline bool
1097 unlimited_cost_model (loop_p loop)
1098 {
1099 if (loop != NULL && loop->force_vectorize
1100 && flag_simd_cost_model != VECT_COST_MODEL_DEFAULT)
1101 return flag_simd_cost_model == VECT_COST_MODEL_UNLIMITED;
1102 return (flag_vect_cost_model == VECT_COST_MODEL_UNLIMITED);
1103 }
1104
1105 /* Return the number of copies needed for loop vectorization when
1106 a statement operates on vectors of type VECTYPE. This is the
1107 vectorization factor divided by the number of elements in
1108 VECTYPE and is always known at compile time. */
1109
1110 static inline unsigned int
1111 vect_get_num_copies (loop_vec_info loop_vinfo, tree vectype)
1112 {
1113 gcc_checking_assert (LOOP_VINFO_VECT_FACTOR (loop_vinfo)
1114 % TYPE_VECTOR_SUBPARTS (vectype) == 0);
1115 return (LOOP_VINFO_VECT_FACTOR (loop_vinfo)
1116 / TYPE_VECTOR_SUBPARTS (vectype));
1117 }
1118
1119 /* Return the size of the value accessed by unvectorized data reference DR.
1120 This is only valid once STMT_VINFO_VECTYPE has been calculated for the
1121 associated gimple statement, since that guarantees that DR accesses
1122 either a scalar or a scalar equivalent. ("Scalar equivalent" here
1123 includes things like V1SI, which can be vectorized in the same way
1124 as a plain SI.) */
1125
1126 inline unsigned int
1127 vect_get_scalar_dr_size (struct data_reference *dr)
1128 {
1129 return tree_to_uhwi (TYPE_SIZE_UNIT (TREE_TYPE (DR_REF (dr))));
1130 }
1131
1132 /* Source location */
1133 extern source_location vect_location;
754 1134
755 /*-----------------------------------------------------------------*/ 1135 /*-----------------------------------------------------------------*/
756 /* Function prototypes. */ 1136 /* Function prototypes. */
757 /*-----------------------------------------------------------------*/ 1137 /*-----------------------------------------------------------------*/
758 1138
759 /* Simple loop peeling and versioning utilities for vectorizer's purposes - 1139 /* Simple loop peeling and versioning utilities for vectorizer's purposes -
760 in tree-vect-loop-manip.c. */ 1140 in tree-vect-loop-manip.c. */
761 extern void slpeel_make_loop_iterate_ntimes (struct loop *, tree); 1141 extern void slpeel_make_loop_iterate_ntimes (struct loop *, tree);
762 extern bool slpeel_can_duplicate_loop_p (const struct loop *, const_edge); 1142 extern bool slpeel_can_duplicate_loop_p (const struct loop *, const_edge);
763 extern void vect_loop_versioning (loop_vec_info, bool, tree *, gimple_seq *); 1143 struct loop *slpeel_tree_duplicate_loop_to_edge_cfg (struct loop *,
764 extern void vect_do_peeling_for_loop_bound (loop_vec_info, tree *, 1144 struct loop *, edge);
765 tree, gimple_seq); 1145 extern void vect_loop_versioning (loop_vec_info, unsigned int, bool);
766 extern void vect_do_peeling_for_alignment (loop_vec_info); 1146 extern struct loop *vect_do_peeling (loop_vec_info, tree, tree,
767 extern LOC find_loop_location (struct loop *); 1147 tree *, int, bool, bool);
1148 extern source_location find_loop_location (struct loop *);
768 extern bool vect_can_advance_ivs_p (loop_vec_info); 1149 extern bool vect_can_advance_ivs_p (loop_vec_info);
769 1150
770 /* In tree-vect-stmts.c. */ 1151 /* In tree-vect-stmts.c. */
771 extern unsigned int current_vector_size; 1152 extern unsigned int current_vector_size;
772 extern tree get_vectype_for_scalar_type (tree); 1153 extern tree get_vectype_for_scalar_type (tree);
1154 extern tree get_mask_type_for_scalar_type (tree);
773 extern tree get_same_sized_vectype (tree, tree); 1155 extern tree get_same_sized_vectype (tree, tree);
774 extern bool vect_is_simple_use (tree, loop_vec_info, bb_vec_info, gimple *, 1156 extern bool vect_is_simple_use (tree, vec_info *, gimple **,
775 tree *, enum vect_def_type *); 1157 enum vect_def_type *);
776 extern bool vect_is_simple_use_1 (tree, loop_vec_info, bb_vec_info, gimple *, 1158 extern bool vect_is_simple_use (tree, vec_info *, gimple **,
777 tree *, enum vect_def_type *, tree *); 1159 enum vect_def_type *, tree *);
778 extern bool supportable_widening_operation (enum tree_code, gimple, tree, tree, 1160 extern bool supportable_widening_operation (enum tree_code, gimple *, tree,
779 tree *, tree *, enum tree_code *, 1161 tree, enum tree_code *,
780 enum tree_code *, int *, 1162 enum tree_code *, int *,
781 VEC (tree, heap) **); 1163 vec<tree> *);
782 extern bool supportable_narrowing_operation (enum tree_code, tree, tree, 1164 extern bool supportable_narrowing_operation (enum tree_code, tree, tree,
783 enum tree_code *, 1165 enum tree_code *,
784 int *, VEC (tree, heap) **); 1166 int *, vec<tree> *);
785 extern stmt_vec_info new_stmt_vec_info (gimple stmt, loop_vec_info, 1167 extern stmt_vec_info new_stmt_vec_info (gimple *stmt, vec_info *);
786 bb_vec_info); 1168 extern void free_stmt_vec_info (gimple *stmt);
787 extern void free_stmt_vec_info (gimple stmt);
788 extern tree vectorizable_function (gimple, tree, tree);
789 extern void vect_model_simple_cost (stmt_vec_info, int, enum vect_def_type *, 1169 extern void vect_model_simple_cost (stmt_vec_info, int, enum vect_def_type *,
790 slp_tree); 1170 int, stmt_vector_for_cost *,
791 extern void vect_model_store_cost (stmt_vec_info, int, enum vect_def_type, 1171 stmt_vector_for_cost *);
792 slp_tree); 1172 extern void vect_model_store_cost (stmt_vec_info, int, vect_memory_access_type,
793 extern void vect_model_load_cost (stmt_vec_info, int, slp_tree); 1173 enum vect_def_type, slp_tree,
794 extern void vect_finish_stmt_generation (gimple, gimple, 1174 stmt_vector_for_cost *,
1175 stmt_vector_for_cost *);
1176 extern void vect_model_load_cost (stmt_vec_info, int, vect_memory_access_type,
1177 slp_tree, stmt_vector_for_cost *,
1178 stmt_vector_for_cost *);
1179 extern unsigned record_stmt_cost (stmt_vector_for_cost *, int,
1180 enum vect_cost_for_stmt, stmt_vec_info,
1181 int, enum vect_cost_model_location);
1182 extern void vect_finish_stmt_generation (gimple *, gimple *,
795 gimple_stmt_iterator *); 1183 gimple_stmt_iterator *);
796 extern bool vect_mark_stmts_to_be_vectorized (loop_vec_info); 1184 extern bool vect_mark_stmts_to_be_vectorized (loop_vec_info);
797 extern int cost_for_stmt (gimple); 1185 extern tree vect_get_vec_def_for_operand_1 (gimple *, enum vect_def_type);
798 extern tree vect_get_vec_def_for_operand (tree, gimple, tree *); 1186 extern tree vect_get_vec_def_for_operand (tree, gimple *, tree = NULL);
799 extern tree vect_init_vector (gimple, tree, tree, 1187 extern void vect_get_vec_defs (tree, tree, gimple *, vec<tree> *,
1188 vec<tree> *, slp_tree);
1189 extern void vect_get_vec_defs_for_stmt_copy (enum vect_def_type *,
1190 vec<tree> *, vec<tree> *);
1191 extern tree vect_init_vector (gimple *, tree, tree,
800 gimple_stmt_iterator *); 1192 gimple_stmt_iterator *);
801 extern tree vect_get_vec_def_for_stmt_copy (enum vect_def_type, tree); 1193 extern tree vect_get_vec_def_for_stmt_copy (enum vect_def_type, tree);
802 extern bool vect_transform_stmt (gimple, gimple_stmt_iterator *, 1194 extern bool vect_transform_stmt (gimple *, gimple_stmt_iterator *,
803 bool *, slp_tree, slp_instance); 1195 bool *, slp_tree, slp_instance);
804 extern void vect_remove_stores (gimple); 1196 extern void vect_remove_stores (gimple *);
805 extern bool vect_analyze_stmt (gimple, bool *, slp_tree); 1197 extern bool vect_analyze_stmt (gimple *, bool *, slp_tree, slp_instance);
806 extern bool vectorizable_condition (gimple, gimple_stmt_iterator *, gimple *, 1198 extern bool vectorizable_condition (gimple *, gimple_stmt_iterator *,
807 tree, int); 1199 gimple **, tree, int, slp_tree);
808 extern void vect_get_load_cost (struct data_reference *, int, bool, 1200 extern void vect_get_load_cost (struct data_reference *, int, bool,
809 unsigned int *, unsigned int *); 1201 unsigned int *, unsigned int *,
810 extern void vect_get_store_cost (struct data_reference *, int, unsigned int *); 1202 stmt_vector_for_cost *,
1203 stmt_vector_for_cost *, bool);
1204 extern void vect_get_store_cost (struct data_reference *, int,
1205 unsigned int *, stmt_vector_for_cost *);
1206 extern bool vect_supportable_shift (enum tree_code, tree);
1207 extern tree vect_gen_perm_mask_any (tree, vec_perm_indices);
1208 extern tree vect_gen_perm_mask_checked (tree, vec_perm_indices);
1209 extern void optimize_mask_stores (struct loop*);
811 1210
812 /* In tree-vect-data-refs.c. */ 1211 /* In tree-vect-data-refs.c. */
813 extern bool vect_can_force_dr_alignment_p (const_tree, unsigned int); 1212 extern bool vect_can_force_dr_alignment_p (const_tree, unsigned int);
814 extern enum dr_alignment_support vect_supportable_dr_alignment 1213 extern enum dr_alignment_support vect_supportable_dr_alignment
815 (struct data_reference *, bool); 1214 (struct data_reference *, bool);
816 extern tree vect_get_smallest_scalar_type (gimple, HOST_WIDE_INT *, 1215 extern tree vect_get_smallest_scalar_type (gimple *, HOST_WIDE_INT *,
817 HOST_WIDE_INT *); 1216 HOST_WIDE_INT *);
818 extern bool vect_analyze_data_ref_dependences (loop_vec_info, bb_vec_info, 1217 extern bool vect_analyze_data_ref_dependences (loop_vec_info, int *);
819 int *, bool *); 1218 extern bool vect_slp_analyze_instance_dependence (slp_instance);
820 extern bool vect_enhance_data_refs_alignment (loop_vec_info); 1219 extern bool vect_enhance_data_refs_alignment (loop_vec_info);
821 extern bool vect_analyze_data_refs_alignment (loop_vec_info, bb_vec_info); 1220 extern bool vect_analyze_data_refs_alignment (loop_vec_info);
822 extern bool vect_verify_datarefs_alignment (loop_vec_info, bb_vec_info); 1221 extern bool vect_verify_datarefs_alignment (loop_vec_info);
823 extern bool vect_analyze_data_ref_accesses (loop_vec_info, bb_vec_info); 1222 extern bool vect_slp_analyze_and_verify_instance_alignment (slp_instance);
1223 extern bool vect_analyze_data_ref_accesses (vec_info *);
824 extern bool vect_prune_runtime_alias_test_list (loop_vec_info); 1224 extern bool vect_prune_runtime_alias_test_list (loop_vec_info);
825 extern bool vect_analyze_data_refs (loop_vec_info, bb_vec_info, int *); 1225 extern bool vect_check_gather_scatter (gimple *, loop_vec_info,
826 extern tree vect_create_data_ref_ptr (gimple, struct loop *, tree, tree *, 1226 gather_scatter_info *);
827 gimple *, bool, bool *); 1227 extern bool vect_analyze_data_refs (vec_info *, int *);
828 extern tree bump_vector_ptr (tree, gimple, gimple_stmt_iterator *, gimple, tree); 1228 extern void vect_record_base_alignments (vec_info *);
1229 extern tree vect_create_data_ref_ptr (gimple *, tree, struct loop *, tree,
1230 tree *, gimple_stmt_iterator *,
1231 gimple **, bool, bool *,
1232 tree = NULL_TREE);
1233 extern tree bump_vector_ptr (tree, gimple *, gimple_stmt_iterator *, gimple *,
1234 tree);
829 extern tree vect_create_destination_var (tree, tree); 1235 extern tree vect_create_destination_var (tree, tree);
830 extern bool vect_strided_store_supported (tree); 1236 extern bool vect_grouped_store_supported (tree, unsigned HOST_WIDE_INT);
831 extern bool vect_strided_load_supported (tree); 1237 extern bool vect_store_lanes_supported (tree, unsigned HOST_WIDE_INT);
832 extern bool vect_permute_store_chain (VEC(tree,heap) *,unsigned int, gimple, 1238 extern bool vect_grouped_load_supported (tree, bool, unsigned HOST_WIDE_INT);
833 gimple_stmt_iterator *, VEC(tree,heap) **); 1239 extern bool vect_load_lanes_supported (tree, unsigned HOST_WIDE_INT);
834 extern tree vect_setup_realignment (gimple, gimple_stmt_iterator *, tree *, 1240 extern void vect_permute_store_chain (vec<tree> ,unsigned int, gimple *,
1241 gimple_stmt_iterator *, vec<tree> *);
1242 extern tree vect_setup_realignment (gimple *, gimple_stmt_iterator *, tree *,
835 enum dr_alignment_support, tree, 1243 enum dr_alignment_support, tree,
836 struct loop **); 1244 struct loop **);
837 extern bool vect_permute_load_chain (VEC(tree,heap) *,unsigned int, gimple, 1245 extern void vect_transform_grouped_load (gimple *, vec<tree> , int,
838 gimple_stmt_iterator *, VEC(tree,heap) **);
839 extern bool vect_transform_strided_load (gimple, VEC(tree,heap) *, int,
840 gimple_stmt_iterator *); 1246 gimple_stmt_iterator *);
841 extern int vect_get_place_in_interleaving_chain (gimple, gimple); 1247 extern void vect_record_grouped_load_vectors (gimple *, vec<tree> );
842 extern tree vect_get_new_vect_var (tree, enum vect_var_kind, const char *); 1248 extern tree vect_get_new_vect_var (tree, enum vect_var_kind, const char *);
843 extern tree vect_create_addr_base_for_vector_ref (gimple, gimple_seq *, 1249 extern tree vect_get_new_ssa_name (tree, enum vect_var_kind,
844 tree, struct loop *); 1250 const char * = NULL);
1251 extern tree vect_create_addr_base_for_vector_ref (gimple *, gimple_seq *,
1252 tree, tree = NULL_TREE);
845 1253
846 /* In tree-vect-loop.c. */ 1254 /* In tree-vect-loop.c. */
847 /* FORNOW: Used in tree-parloops.c. */ 1255 /* FORNOW: Used in tree-parloops.c. */
848 extern void destroy_loop_vec_info (loop_vec_info, bool); 1256 extern gimple *vect_force_simple_reduction (loop_vec_info, gimple *,
849 extern gimple vect_force_simple_reduction (loop_vec_info, gimple, bool, bool *); 1257 bool *, bool);
850 /* Drive for loop analysis stage. */ 1258 /* Drive for loop analysis stage. */
851 extern loop_vec_info vect_analyze_loop (struct loop *); 1259 extern loop_vec_info vect_analyze_loop (struct loop *, loop_vec_info);
1260 extern tree vect_build_loop_niters (loop_vec_info, bool * = NULL);
1261 extern void vect_gen_vector_loop_niters (loop_vec_info, tree, tree *, bool);
852 /* Drive for loop transformation stage. */ 1262 /* Drive for loop transformation stage. */
853 extern void vect_transform_loop (loop_vec_info); 1263 extern struct loop *vect_transform_loop (loop_vec_info);
854 extern loop_vec_info vect_analyze_loop_form (struct loop *); 1264 extern loop_vec_info vect_analyze_loop_form (struct loop *);
855 extern bool vectorizable_live_operation (gimple, gimple_stmt_iterator *, 1265 extern bool vectorizable_live_operation (gimple *, gimple_stmt_iterator *,
856 gimple *); 1266 slp_tree, int, gimple **);
857 extern bool vectorizable_reduction (gimple, gimple_stmt_iterator *, gimple *, 1267 extern bool vectorizable_reduction (gimple *, gimple_stmt_iterator *,
858 slp_tree); 1268 gimple **, slp_tree, slp_instance);
859 extern bool vectorizable_induction (gimple, gimple_stmt_iterator *, gimple *); 1269 extern bool vectorizable_induction (gimple *, gimple_stmt_iterator *,
860 extern int vect_estimate_min_profitable_iters (loop_vec_info); 1270 gimple **, slp_tree);
861 extern tree get_initial_def_for_reduction (gimple, tree, tree *); 1271 extern tree get_initial_def_for_reduction (gimple *, tree, tree *);
862 extern int vect_min_worthwhile_factor (enum tree_code); 1272 extern bool vect_worthwhile_without_simd_p (vec_info *, tree_code);
863 extern int vect_get_known_peeling_cost (loop_vec_info, int, int *, int); 1273 extern int vect_get_known_peeling_cost (loop_vec_info, int, int *,
864 extern int vect_get_single_scalar_iteraion_cost (loop_vec_info); 1274 stmt_vector_for_cost *,
1275 stmt_vector_for_cost *,
1276 stmt_vector_for_cost *);
865 1277
866 /* In tree-vect-slp.c. */ 1278 /* In tree-vect-slp.c. */
867 extern void vect_free_slp_instance (slp_instance); 1279 extern void vect_free_slp_instance (slp_instance);
868 extern bool vect_transform_slp_perm_load (gimple, VEC (tree, heap) *, 1280 extern bool vect_transform_slp_perm_load (slp_tree, vec<tree> ,
869 gimple_stmt_iterator *, int, 1281 gimple_stmt_iterator *, int,
870 slp_instance, bool); 1282 slp_instance, bool, unsigned *);
871 extern bool vect_schedule_slp (loop_vec_info, bb_vec_info); 1283 extern bool vect_slp_analyze_operations (vec_info *);
872 extern void vect_update_slp_costs_according_to_vf (loop_vec_info); 1284 extern bool vect_schedule_slp (vec_info *);
873 extern bool vect_analyze_slp (loop_vec_info, bb_vec_info); 1285 extern bool vect_analyze_slp (vec_info *, unsigned);
874 extern void vect_make_slp_decision (loop_vec_info); 1286 extern bool vect_make_slp_decision (loop_vec_info);
875 extern void vect_detect_hybrid_slp (loop_vec_info); 1287 extern void vect_detect_hybrid_slp (loop_vec_info);
876 extern void vect_get_slp_defs (tree, tree, slp_tree, VEC (tree,heap) **, 1288 extern void vect_get_slp_defs (vec<tree> , slp_tree, vec<vec<tree> > *);
877 VEC (tree,heap) **, int); 1289 extern bool vect_slp_bb (basic_block);
878 extern LOC find_bb_location (basic_block); 1290 extern gimple *vect_find_last_scalar_stmt_in_slp (slp_tree);
879 extern bb_vec_info vect_slp_analyze_bb (basic_block); 1291 extern bool is_simple_and_all_uses_invariant (gimple *, loop_vec_info);
880 extern void vect_slp_transform_bb (basic_block);
881 1292
882 /* In tree-vect-patterns.c. */ 1293 /* In tree-vect-patterns.c. */
883 /* Pattern recognition functions. 1294 /* Pattern recognition functions.
884 Additional pattern recognition functions can (and will) be added 1295 Additional pattern recognition functions can (and will) be added
885 in the future. */ 1296 in the future. */
886 typedef gimple (* vect_recog_func_ptr) (gimple, tree *, tree *); 1297 typedef gimple *(* vect_recog_func_ptr) (vec<gimple *> *, tree *, tree *);
887 #define NUM_PATTERNS 4 1298 #define NUM_PATTERNS 14
888 void vect_pattern_recog (loop_vec_info); 1299 void vect_pattern_recog (vec_info *);
889 1300
890 /* In tree-vectorizer.c. */ 1301 /* In tree-vectorizer.c. */
891 unsigned vectorize_loops (void); 1302 unsigned vectorize_loops (void);
892 /* Vectorization debug information */ 1303 bool vect_stmt_in_region_p (vec_info *, gimple *);
893 extern bool vect_print_dump_info (enum vect_verbosity_levels); 1304 void vect_free_loop_info_assumptions (struct loop *);
894 1305
895 #endif /* GCC_TREE_VECTORIZER_H */ 1306 #endif /* GCC_TREE_VECTORIZER_H */