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Commit | Line | Data |
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41dbbb37 TS |
1 | /* Lowering pass for OMP directives. Converts OMP directives into explicit |
2 | calls to the runtime library (libgomp), data marshalling to implement data | |
3 | sharing and copying clauses, offloading to accelerators, and more. | |
4 | ||
953ff289 DN |
5 | Contributed by Diego Novillo <dnovillo@redhat.com> |
6 | ||
85ec4feb | 7 | Copyright (C) 2005-2018 Free Software Foundation, Inc. |
953ff289 DN |
8 | |
9 | This file is part of GCC. | |
10 | ||
11 | GCC is free software; you can redistribute it and/or modify it under | |
12 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 13 | Software Foundation; either version 3, or (at your option) any later |
953ff289 DN |
14 | version. |
15 | ||
16 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
17 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
18 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
19 | for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
22 | along with GCC; see the file COPYING3. If not see |
23 | <http://www.gnu.org/licenses/>. */ | |
953ff289 DN |
24 | |
25 | #include "config.h" | |
26 | #include "system.h" | |
27 | #include "coretypes.h" | |
c7131fb2 | 28 | #include "backend.h" |
957060b5 | 29 | #include "target.h" |
953ff289 | 30 | #include "tree.h" |
c7131fb2 | 31 | #include "gimple.h" |
957060b5 | 32 | #include "tree-pass.h" |
c7131fb2 | 33 | #include "ssa.h" |
957060b5 AM |
34 | #include "cgraph.h" |
35 | #include "pretty-print.h" | |
36 | #include "diagnostic-core.h" | |
40e23961 | 37 | #include "fold-const.h" |
d8a2d370 | 38 | #include "stor-layout.h" |
2fb9a547 AM |
39 | #include "internal-fn.h" |
40 | #include "gimple-fold.h" | |
45b0be94 | 41 | #include "gimplify.h" |
5be5c238 | 42 | #include "gimple-iterator.h" |
18f429e2 | 43 | #include "gimplify-me.h" |
5be5c238 | 44 | #include "gimple-walk.h" |
726a989a | 45 | #include "tree-iterator.h" |
953ff289 DN |
46 | #include "tree-inline.h" |
47 | #include "langhooks.h" | |
442b4905 | 48 | #include "tree-dfa.h" |
7a300452 | 49 | #include "tree-ssa.h" |
6be42dd4 | 50 | #include "splay-tree.h" |
629b3d75 | 51 | #include "omp-general.h" |
0645c1a2 | 52 | #include "omp-low.h" |
629b3d75 | 53 | #include "omp-grid.h" |
4484a35a | 54 | #include "gimple-low.h" |
dd912cb8 | 55 | #include "symbol-summary.h" |
1fe37220 | 56 | #include "tree-nested.h" |
1f6be682 | 57 | #include "context.h" |
41dbbb37 | 58 | #include "gomp-constants.h" |
9bd46bc9 | 59 | #include "gimple-pretty-print.h" |
13293add | 60 | #include "hsa-common.h" |
314e6352 ML |
61 | #include "stringpool.h" |
62 | #include "attribs.h" | |
953ff289 | 63 | |
41dbbb37 | 64 | /* Lowering of OMP parallel and workshare constructs proceeds in two |
953ff289 DN |
65 | phases. The first phase scans the function looking for OMP statements |
66 | and then for variables that must be replaced to satisfy data sharing | |
67 | clauses. The second phase expands code for the constructs, as well as | |
c0220ea4 | 68 | re-gimplifying things when variables have been replaced with complex |
953ff289 DN |
69 | expressions. |
70 | ||
7ebaeab5 | 71 | Final code generation is done by pass_expand_omp. The flowgraph is |
41dbbb37 TS |
72 | scanned for regions which are then moved to a new |
73 | function, to be invoked by the thread library, or offloaded. */ | |
953ff289 DN |
74 | |
75 | /* Context structure. Used to store information about each parallel | |
76 | directive in the code. */ | |
77 | ||
a79683d5 | 78 | struct omp_context |
953ff289 DN |
79 | { |
80 | /* This field must be at the beginning, as we do "inheritance": Some | |
81 | callback functions for tree-inline.c (e.g., omp_copy_decl) | |
82 | receive a copy_body_data pointer that is up-casted to an | |
83 | omp_context pointer. */ | |
84 | copy_body_data cb; | |
85 | ||
86 | /* The tree of contexts corresponding to the encountered constructs. */ | |
87 | struct omp_context *outer; | |
355fe088 | 88 | gimple *stmt; |
953ff289 | 89 | |
b8698a0f | 90 | /* Map variables to fields in a structure that allows communication |
953ff289 DN |
91 | between sending and receiving threads. */ |
92 | splay_tree field_map; | |
93 | tree record_type; | |
94 | tree sender_decl; | |
95 | tree receiver_decl; | |
96 | ||
a68ab351 JJ |
97 | /* These are used just by task contexts, if task firstprivate fn is |
98 | needed. srecord_type is used to communicate from the thread | |
99 | that encountered the task construct to task firstprivate fn, | |
100 | record_type is allocated by GOMP_task, initialized by task firstprivate | |
101 | fn and passed to the task body fn. */ | |
102 | splay_tree sfield_map; | |
103 | tree srecord_type; | |
104 | ||
953ff289 DN |
105 | /* A chain of variables to add to the top-level block surrounding the |
106 | construct. In the case of a parallel, this is in the child function. */ | |
107 | tree block_vars; | |
108 | ||
acf0174b JJ |
109 | /* Label to which GOMP_cancel{,llation_point} and explicit and implicit |
110 | barriers should jump to during omplower pass. */ | |
111 | tree cancel_label; | |
112 | ||
6e6cf7b0 JJ |
113 | /* The sibling GIMPLE_OMP_FOR simd with _simt_ clause or NULL |
114 | otherwise. */ | |
115 | gimple *simt_stmt; | |
116 | ||
953ff289 DN |
117 | /* Nesting depth of this context. Used to beautify error messages re |
118 | invalid gotos. The outermost ctx is depth 1, with depth 0 being | |
119 | reserved for the main body of the function. */ | |
120 | int depth; | |
121 | ||
953ff289 DN |
122 | /* True if this parallel directive is nested within another. */ |
123 | bool is_nested; | |
acf0174b JJ |
124 | |
125 | /* True if this construct can be cancelled. */ | |
126 | bool cancellable; | |
a79683d5 | 127 | }; |
953ff289 | 128 | |
953ff289 | 129 | static splay_tree all_contexts; |
a68ab351 | 130 | static int taskreg_nesting_level; |
acf0174b | 131 | static int target_nesting_level; |
a68ab351 | 132 | static bitmap task_shared_vars; |
5771c391 | 133 | static vec<omp_context *> taskreg_contexts; |
953ff289 | 134 | |
26127932 | 135 | static void scan_omp (gimple_seq *, omp_context *); |
726a989a RB |
136 | static tree scan_omp_1_op (tree *, int *, void *); |
137 | ||
138 | #define WALK_SUBSTMTS \ | |
139 | case GIMPLE_BIND: \ | |
140 | case GIMPLE_TRY: \ | |
141 | case GIMPLE_CATCH: \ | |
142 | case GIMPLE_EH_FILTER: \ | |
0a35513e | 143 | case GIMPLE_TRANSACTION: \ |
726a989a RB |
144 | /* The sub-statements for these should be walked. */ \ |
145 | *handled_ops_p = false; \ | |
146 | break; | |
147 | ||
e4834818 NS |
148 | /* Return true if CTX corresponds to an oacc parallel region. */ |
149 | ||
150 | static bool | |
151 | is_oacc_parallel (omp_context *ctx) | |
152 | { | |
153 | enum gimple_code outer_type = gimple_code (ctx->stmt); | |
154 | return ((outer_type == GIMPLE_OMP_TARGET) | |
155 | && (gimple_omp_target_kind (ctx->stmt) | |
156 | == GF_OMP_TARGET_KIND_OACC_PARALLEL)); | |
157 | } | |
158 | ||
159 | /* Return true if CTX corresponds to an oacc kernels region. */ | |
160 | ||
161 | static bool | |
162 | is_oacc_kernels (omp_context *ctx) | |
163 | { | |
164 | enum gimple_code outer_type = gimple_code (ctx->stmt); | |
165 | return ((outer_type == GIMPLE_OMP_TARGET) | |
166 | && (gimple_omp_target_kind (ctx->stmt) | |
167 | == GF_OMP_TARGET_KIND_OACC_KERNELS)); | |
168 | } | |
169 | ||
d9a6bd32 JJ |
170 | /* If DECL is the artificial dummy VAR_DECL created for non-static |
171 | data member privatization, return the underlying "this" parameter, | |
172 | otherwise return NULL. */ | |
173 | ||
174 | tree | |
175 | omp_member_access_dummy_var (tree decl) | |
176 | { | |
177 | if (!VAR_P (decl) | |
178 | || !DECL_ARTIFICIAL (decl) | |
179 | || !DECL_IGNORED_P (decl) | |
180 | || !DECL_HAS_VALUE_EXPR_P (decl) | |
181 | || !lang_hooks.decls.omp_disregard_value_expr (decl, false)) | |
182 | return NULL_TREE; | |
183 | ||
184 | tree v = DECL_VALUE_EXPR (decl); | |
185 | if (TREE_CODE (v) != COMPONENT_REF) | |
186 | return NULL_TREE; | |
187 | ||
188 | while (1) | |
189 | switch (TREE_CODE (v)) | |
190 | { | |
191 | case COMPONENT_REF: | |
192 | case MEM_REF: | |
193 | case INDIRECT_REF: | |
194 | CASE_CONVERT: | |
195 | case POINTER_PLUS_EXPR: | |
196 | v = TREE_OPERAND (v, 0); | |
197 | continue; | |
198 | case PARM_DECL: | |
199 | if (DECL_CONTEXT (v) == current_function_decl | |
200 | && DECL_ARTIFICIAL (v) | |
201 | && TREE_CODE (TREE_TYPE (v)) == POINTER_TYPE) | |
202 | return v; | |
203 | return NULL_TREE; | |
204 | default: | |
205 | return NULL_TREE; | |
206 | } | |
207 | } | |
208 | ||
209 | /* Helper for unshare_and_remap, called through walk_tree. */ | |
210 | ||
211 | static tree | |
212 | unshare_and_remap_1 (tree *tp, int *walk_subtrees, void *data) | |
213 | { | |
214 | tree *pair = (tree *) data; | |
215 | if (*tp == pair[0]) | |
216 | { | |
217 | *tp = unshare_expr (pair[1]); | |
218 | *walk_subtrees = 0; | |
219 | } | |
220 | else if (IS_TYPE_OR_DECL_P (*tp)) | |
221 | *walk_subtrees = 0; | |
222 | return NULL_TREE; | |
223 | } | |
224 | ||
225 | /* Return unshare_expr (X) with all occurrences of FROM | |
226 | replaced with TO. */ | |
227 | ||
228 | static tree | |
229 | unshare_and_remap (tree x, tree from, tree to) | |
230 | { | |
231 | tree pair[2] = { from, to }; | |
232 | x = unshare_expr (x); | |
233 | walk_tree (&x, unshare_and_remap_1, pair, NULL); | |
234 | return x; | |
235 | } | |
236 | ||
726a989a RB |
237 | /* Convenience function for calling scan_omp_1_op on tree operands. */ |
238 | ||
239 | static inline tree | |
240 | scan_omp_op (tree *tp, omp_context *ctx) | |
241 | { | |
242 | struct walk_stmt_info wi; | |
243 | ||
244 | memset (&wi, 0, sizeof (wi)); | |
245 | wi.info = ctx; | |
246 | wi.want_locations = true; | |
247 | ||
248 | return walk_tree (tp, scan_omp_1_op, &wi, NULL); | |
249 | } | |
250 | ||
355a7673 | 251 | static void lower_omp (gimple_seq *, omp_context *); |
8ca5b2a2 JJ |
252 | static tree lookup_decl_in_outer_ctx (tree, omp_context *); |
253 | static tree maybe_lookup_decl_in_outer_ctx (tree, omp_context *); | |
953ff289 | 254 | |
953ff289 DN |
255 | /* Return true if CTX is for an omp parallel. */ |
256 | ||
257 | static inline bool | |
258 | is_parallel_ctx (omp_context *ctx) | |
259 | { | |
726a989a | 260 | return gimple_code (ctx->stmt) == GIMPLE_OMP_PARALLEL; |
953ff289 DN |
261 | } |
262 | ||
50674e96 | 263 | |
a68ab351 JJ |
264 | /* Return true if CTX is for an omp task. */ |
265 | ||
266 | static inline bool | |
267 | is_task_ctx (omp_context *ctx) | |
268 | { | |
726a989a | 269 | return gimple_code (ctx->stmt) == GIMPLE_OMP_TASK; |
a68ab351 JJ |
270 | } |
271 | ||
272 | ||
d9a6bd32 JJ |
273 | /* Return true if CTX is for an omp taskloop. */ |
274 | ||
275 | static inline bool | |
276 | is_taskloop_ctx (omp_context *ctx) | |
277 | { | |
278 | return gimple_code (ctx->stmt) == GIMPLE_OMP_FOR | |
279 | && gimple_omp_for_kind (ctx->stmt) == GF_OMP_FOR_KIND_TASKLOOP; | |
280 | } | |
281 | ||
282 | ||
a68ab351 JJ |
283 | /* Return true if CTX is for an omp parallel or omp task. */ |
284 | ||
285 | static inline bool | |
286 | is_taskreg_ctx (omp_context *ctx) | |
287 | { | |
d9a6bd32 | 288 | return is_parallel_ctx (ctx) || is_task_ctx (ctx); |
a68ab351 JJ |
289 | } |
290 | ||
953ff289 DN |
291 | /* Return true if EXPR is variable sized. */ |
292 | ||
293 | static inline bool | |
22ea9ec0 | 294 | is_variable_sized (const_tree expr) |
953ff289 DN |
295 | { |
296 | return !TREE_CONSTANT (TYPE_SIZE_UNIT (TREE_TYPE (expr))); | |
297 | } | |
298 | ||
41dbbb37 | 299 | /* Lookup variables. The "maybe" form |
953ff289 DN |
300 | allows for the variable form to not have been entered, otherwise we |
301 | assert that the variable must have been entered. */ | |
302 | ||
303 | static inline tree | |
304 | lookup_decl (tree var, omp_context *ctx) | |
305 | { | |
b787e7a2 | 306 | tree *n = ctx->cb.decl_map->get (var); |
6be42dd4 | 307 | return *n; |
953ff289 DN |
308 | } |
309 | ||
310 | static inline tree | |
7c8f7639 | 311 | maybe_lookup_decl (const_tree var, omp_context *ctx) |
953ff289 | 312 | { |
b787e7a2 | 313 | tree *n = ctx->cb.decl_map->get (const_cast<tree> (var)); |
6be42dd4 | 314 | return n ? *n : NULL_TREE; |
953ff289 DN |
315 | } |
316 | ||
317 | static inline tree | |
318 | lookup_field (tree var, omp_context *ctx) | |
319 | { | |
320 | splay_tree_node n; | |
321 | n = splay_tree_lookup (ctx->field_map, (splay_tree_key) var); | |
322 | return (tree) n->value; | |
323 | } | |
324 | ||
a68ab351 | 325 | static inline tree |
d9a6bd32 | 326 | lookup_sfield (splay_tree_key key, omp_context *ctx) |
a68ab351 JJ |
327 | { |
328 | splay_tree_node n; | |
329 | n = splay_tree_lookup (ctx->sfield_map | |
d9a6bd32 | 330 | ? ctx->sfield_map : ctx->field_map, key); |
a68ab351 JJ |
331 | return (tree) n->value; |
332 | } | |
333 | ||
953ff289 | 334 | static inline tree |
d9a6bd32 JJ |
335 | lookup_sfield (tree var, omp_context *ctx) |
336 | { | |
337 | return lookup_sfield ((splay_tree_key) var, ctx); | |
338 | } | |
339 | ||
340 | static inline tree | |
341 | maybe_lookup_field (splay_tree_key key, omp_context *ctx) | |
953ff289 DN |
342 | { |
343 | splay_tree_node n; | |
d9a6bd32 | 344 | n = splay_tree_lookup (ctx->field_map, key); |
953ff289 DN |
345 | return n ? (tree) n->value : NULL_TREE; |
346 | } | |
347 | ||
d9a6bd32 JJ |
348 | static inline tree |
349 | maybe_lookup_field (tree var, omp_context *ctx) | |
350 | { | |
351 | return maybe_lookup_field ((splay_tree_key) var, ctx); | |
352 | } | |
353 | ||
7c8f7639 JJ |
354 | /* Return true if DECL should be copied by pointer. SHARED_CTX is |
355 | the parallel context if DECL is to be shared. */ | |
953ff289 DN |
356 | |
357 | static bool | |
a68ab351 | 358 | use_pointer_for_field (tree decl, omp_context *shared_ctx) |
953ff289 | 359 | { |
9dc5773f JJ |
360 | if (AGGREGATE_TYPE_P (TREE_TYPE (decl)) |
361 | || TYPE_ATOMIC (TREE_TYPE (decl))) | |
953ff289 DN |
362 | return true; |
363 | ||
6fc0bb99 | 364 | /* We can only use copy-in/copy-out semantics for shared variables |
953ff289 | 365 | when we know the value is not accessible from an outer scope. */ |
7c8f7639 | 366 | if (shared_ctx) |
953ff289 | 367 | { |
41dbbb37 TS |
368 | gcc_assert (!is_gimple_omp_oacc (shared_ctx->stmt)); |
369 | ||
953ff289 DN |
370 | /* ??? Trivially accessible from anywhere. But why would we even |
371 | be passing an address in this case? Should we simply assert | |
372 | this to be false, or should we have a cleanup pass that removes | |
373 | these from the list of mappings? */ | |
374 | if (TREE_STATIC (decl) || DECL_EXTERNAL (decl)) | |
375 | return true; | |
376 | ||
377 | /* For variables with DECL_HAS_VALUE_EXPR_P set, we cannot tell | |
378 | without analyzing the expression whether or not its location | |
379 | is accessible to anyone else. In the case of nested parallel | |
380 | regions it certainly may be. */ | |
077b0dfb | 381 | if (TREE_CODE (decl) != RESULT_DECL && DECL_HAS_VALUE_EXPR_P (decl)) |
953ff289 DN |
382 | return true; |
383 | ||
384 | /* Do not use copy-in/copy-out for variables that have their | |
385 | address taken. */ | |
386 | if (TREE_ADDRESSABLE (decl)) | |
387 | return true; | |
7c8f7639 | 388 | |
6d840d99 JJ |
389 | /* lower_send_shared_vars only uses copy-in, but not copy-out |
390 | for these. */ | |
391 | if (TREE_READONLY (decl) | |
392 | || ((TREE_CODE (decl) == RESULT_DECL | |
393 | || TREE_CODE (decl) == PARM_DECL) | |
394 | && DECL_BY_REFERENCE (decl))) | |
395 | return false; | |
396 | ||
7c8f7639 JJ |
397 | /* Disallow copy-in/out in nested parallel if |
398 | decl is shared in outer parallel, otherwise | |
399 | each thread could store the shared variable | |
400 | in its own copy-in location, making the | |
401 | variable no longer really shared. */ | |
6d840d99 | 402 | if (shared_ctx->is_nested) |
7c8f7639 JJ |
403 | { |
404 | omp_context *up; | |
405 | ||
406 | for (up = shared_ctx->outer; up; up = up->outer) | |
d9c194cb | 407 | if (is_taskreg_ctx (up) && maybe_lookup_decl (decl, up)) |
7c8f7639 JJ |
408 | break; |
409 | ||
d9c194cb | 410 | if (up) |
7c8f7639 JJ |
411 | { |
412 | tree c; | |
413 | ||
726a989a | 414 | for (c = gimple_omp_taskreg_clauses (up->stmt); |
7c8f7639 JJ |
415 | c; c = OMP_CLAUSE_CHAIN (c)) |
416 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_SHARED | |
417 | && OMP_CLAUSE_DECL (c) == decl) | |
418 | break; | |
419 | ||
420 | if (c) | |
25142650 | 421 | goto maybe_mark_addressable_and_ret; |
7c8f7639 JJ |
422 | } |
423 | } | |
a68ab351 | 424 | |
6d840d99 | 425 | /* For tasks avoid using copy-in/out. As tasks can be |
a68ab351 JJ |
426 | deferred or executed in different thread, when GOMP_task |
427 | returns, the task hasn't necessarily terminated. */ | |
6d840d99 | 428 | if (is_task_ctx (shared_ctx)) |
a68ab351 | 429 | { |
25142650 JJ |
430 | tree outer; |
431 | maybe_mark_addressable_and_ret: | |
432 | outer = maybe_lookup_decl_in_outer_ctx (decl, shared_ctx); | |
d9a6bd32 | 433 | if (is_gimple_reg (outer) && !omp_member_access_dummy_var (outer)) |
a68ab351 JJ |
434 | { |
435 | /* Taking address of OUTER in lower_send_shared_vars | |
436 | might need regimplification of everything that uses the | |
437 | variable. */ | |
438 | if (!task_shared_vars) | |
439 | task_shared_vars = BITMAP_ALLOC (NULL); | |
440 | bitmap_set_bit (task_shared_vars, DECL_UID (outer)); | |
441 | TREE_ADDRESSABLE (outer) = 1; | |
442 | } | |
443 | return true; | |
444 | } | |
953ff289 DN |
445 | } |
446 | ||
447 | return false; | |
448 | } | |
449 | ||
917948d3 ZD |
450 | /* Construct a new automatic decl similar to VAR. */ |
451 | ||
452 | static tree | |
453 | omp_copy_decl_2 (tree var, tree name, tree type, omp_context *ctx) | |
454 | { | |
455 | tree copy = copy_var_decl (var, name, type); | |
456 | ||
457 | DECL_CONTEXT (copy) = current_function_decl; | |
910ad8de | 458 | DECL_CHAIN (copy) = ctx->block_vars; |
d9a6bd32 JJ |
459 | /* If VAR is listed in task_shared_vars, it means it wasn't |
460 | originally addressable and is just because task needs to take | |
461 | it's address. But we don't need to take address of privatizations | |
462 | from that var. */ | |
463 | if (TREE_ADDRESSABLE (var) | |
464 | && task_shared_vars | |
465 | && bitmap_bit_p (task_shared_vars, DECL_UID (var))) | |
466 | TREE_ADDRESSABLE (copy) = 0; | |
953ff289 DN |
467 | ctx->block_vars = copy; |
468 | ||
469 | return copy; | |
470 | } | |
471 | ||
472 | static tree | |
473 | omp_copy_decl_1 (tree var, omp_context *ctx) | |
474 | { | |
475 | return omp_copy_decl_2 (var, DECL_NAME (var), TREE_TYPE (var), ctx); | |
476 | } | |
477 | ||
a9a58711 JJ |
478 | /* Build COMPONENT_REF and set TREE_THIS_VOLATILE and TREE_READONLY on it |
479 | as appropriate. */ | |
480 | static tree | |
481 | omp_build_component_ref (tree obj, tree field) | |
482 | { | |
483 | tree ret = build3 (COMPONENT_REF, TREE_TYPE (field), obj, field, NULL); | |
484 | if (TREE_THIS_VOLATILE (field)) | |
485 | TREE_THIS_VOLATILE (ret) |= 1; | |
486 | if (TREE_READONLY (field)) | |
487 | TREE_READONLY (ret) |= 1; | |
488 | return ret; | |
489 | } | |
490 | ||
953ff289 DN |
491 | /* Build tree nodes to access the field for VAR on the receiver side. */ |
492 | ||
493 | static tree | |
494 | build_receiver_ref (tree var, bool by_ref, omp_context *ctx) | |
495 | { | |
496 | tree x, field = lookup_field (var, ctx); | |
497 | ||
498 | /* If the receiver record type was remapped in the child function, | |
499 | remap the field into the new record type. */ | |
500 | x = maybe_lookup_field (field, ctx); | |
501 | if (x != NULL) | |
502 | field = x; | |
503 | ||
70f34814 | 504 | x = build_simple_mem_ref (ctx->receiver_decl); |
f1b9b669 | 505 | TREE_THIS_NOTRAP (x) = 1; |
a9a58711 | 506 | x = omp_build_component_ref (x, field); |
953ff289 | 507 | if (by_ref) |
096b85f4 TV |
508 | { |
509 | x = build_simple_mem_ref (x); | |
510 | TREE_THIS_NOTRAP (x) = 1; | |
511 | } | |
953ff289 DN |
512 | |
513 | return x; | |
514 | } | |
515 | ||
516 | /* Build tree nodes to access VAR in the scope outer to CTX. In the case | |
517 | of a parallel, this is a component reference; for workshare constructs | |
518 | this is some variable. */ | |
519 | ||
520 | static tree | |
c39dad64 JJ |
521 | build_outer_var_ref (tree var, omp_context *ctx, |
522 | enum omp_clause_code code = OMP_CLAUSE_ERROR) | |
953ff289 DN |
523 | { |
524 | tree x; | |
525 | ||
8ca5b2a2 | 526 | if (is_global_var (maybe_lookup_decl_in_outer_ctx (var, ctx))) |
953ff289 DN |
527 | x = var; |
528 | else if (is_variable_sized (var)) | |
529 | { | |
530 | x = TREE_OPERAND (DECL_VALUE_EXPR (var), 0); | |
c39dad64 | 531 | x = build_outer_var_ref (x, ctx, code); |
70f34814 | 532 | x = build_simple_mem_ref (x); |
953ff289 | 533 | } |
a68ab351 | 534 | else if (is_taskreg_ctx (ctx)) |
953ff289 | 535 | { |
7c8f7639 | 536 | bool by_ref = use_pointer_for_field (var, NULL); |
953ff289 DN |
537 | x = build_receiver_ref (var, by_ref, ctx); |
538 | } | |
c39dad64 JJ |
539 | else if ((gimple_code (ctx->stmt) == GIMPLE_OMP_FOR |
540 | && gimple_omp_for_kind (ctx->stmt) & GF_OMP_FOR_SIMD) | |
541 | || (code == OMP_CLAUSE_PRIVATE | |
542 | && (gimple_code (ctx->stmt) == GIMPLE_OMP_FOR | |
543 | || gimple_code (ctx->stmt) == GIMPLE_OMP_SECTIONS | |
544 | || gimple_code (ctx->stmt) == GIMPLE_OMP_SINGLE))) | |
74bf76ed | 545 | { |
c39dad64 JJ |
546 | /* #pragma omp simd isn't a worksharing construct, and can reference |
547 | even private vars in its linear etc. clauses. | |
548 | Similarly for OMP_CLAUSE_PRIVATE with outer ref, that can refer | |
549 | to private vars in all worksharing constructs. */ | |
74bf76ed JJ |
550 | x = NULL_TREE; |
551 | if (ctx->outer && is_taskreg_ctx (ctx)) | |
552 | x = lookup_decl (var, ctx->outer); | |
553 | else if (ctx->outer) | |
f3b331d1 | 554 | x = maybe_lookup_decl_in_outer_ctx (var, ctx); |
74bf76ed JJ |
555 | if (x == NULL_TREE) |
556 | x = var; | |
557 | } | |
c39dad64 | 558 | else if (code == OMP_CLAUSE_LASTPRIVATE && is_taskloop_ctx (ctx)) |
d9a6bd32 JJ |
559 | { |
560 | gcc_assert (ctx->outer); | |
561 | splay_tree_node n | |
562 | = splay_tree_lookup (ctx->outer->field_map, | |
563 | (splay_tree_key) &DECL_UID (var)); | |
564 | if (n == NULL) | |
565 | { | |
566 | if (is_global_var (maybe_lookup_decl_in_outer_ctx (var, ctx->outer))) | |
567 | x = var; | |
568 | else | |
569 | x = lookup_decl (var, ctx->outer); | |
570 | } | |
571 | else | |
572 | { | |
573 | tree field = (tree) n->value; | |
574 | /* If the receiver record type was remapped in the child function, | |
575 | remap the field into the new record type. */ | |
576 | x = maybe_lookup_field (field, ctx->outer); | |
577 | if (x != NULL) | |
578 | field = x; | |
579 | ||
580 | x = build_simple_mem_ref (ctx->outer->receiver_decl); | |
581 | x = omp_build_component_ref (x, field); | |
582 | if (use_pointer_for_field (var, ctx->outer)) | |
583 | x = build_simple_mem_ref (x); | |
584 | } | |
585 | } | |
953ff289 | 586 | else if (ctx->outer) |
b2b40051 MJ |
587 | { |
588 | omp_context *outer = ctx->outer; | |
589 | if (gimple_code (outer->stmt) == GIMPLE_OMP_GRID_BODY) | |
590 | { | |
591 | outer = outer->outer; | |
592 | gcc_assert (outer | |
593 | && gimple_code (outer->stmt) != GIMPLE_OMP_GRID_BODY); | |
594 | } | |
c39dad64 | 595 | x = lookup_decl (var, outer); |
b2b40051 | 596 | } |
629b3d75 | 597 | else if (omp_is_reference (var)) |
eeb1d9e0 JJ |
598 | /* This can happen with orphaned constructs. If var is reference, it is |
599 | possible it is shared and as such valid. */ | |
600 | x = var; | |
d9a6bd32 JJ |
601 | else if (omp_member_access_dummy_var (var)) |
602 | x = var; | |
953ff289 DN |
603 | else |
604 | gcc_unreachable (); | |
605 | ||
d9a6bd32 JJ |
606 | if (x == var) |
607 | { | |
608 | tree t = omp_member_access_dummy_var (var); | |
609 | if (t) | |
610 | { | |
611 | x = DECL_VALUE_EXPR (var); | |
612 | tree o = maybe_lookup_decl_in_outer_ctx (t, ctx); | |
613 | if (o != t) | |
614 | x = unshare_and_remap (x, t, o); | |
615 | else | |
616 | x = unshare_expr (x); | |
617 | } | |
618 | } | |
619 | ||
629b3d75 | 620 | if (omp_is_reference (var)) |
70f34814 | 621 | x = build_simple_mem_ref (x); |
953ff289 DN |
622 | |
623 | return x; | |
624 | } | |
625 | ||
626 | /* Build tree nodes to access the field for VAR on the sender side. */ | |
627 | ||
628 | static tree | |
d9a6bd32 | 629 | build_sender_ref (splay_tree_key key, omp_context *ctx) |
953ff289 | 630 | { |
d9a6bd32 | 631 | tree field = lookup_sfield (key, ctx); |
a9a58711 | 632 | return omp_build_component_ref (ctx->sender_decl, field); |
953ff289 DN |
633 | } |
634 | ||
d9a6bd32 JJ |
635 | static tree |
636 | build_sender_ref (tree var, omp_context *ctx) | |
637 | { | |
638 | return build_sender_ref ((splay_tree_key) var, ctx); | |
639 | } | |
640 | ||
86938de6 TV |
641 | /* Add a new field for VAR inside the structure CTX->SENDER_DECL. If |
642 | BASE_POINTERS_RESTRICT, declare the field with restrict. */ | |
953ff289 DN |
643 | |
644 | static void | |
86938de6 TV |
645 | install_var_field (tree var, bool by_ref, int mask, omp_context *ctx, |
646 | bool base_pointers_restrict = false) | |
953ff289 | 647 | { |
a68ab351 | 648 | tree field, type, sfield = NULL_TREE; |
d9a6bd32 | 649 | splay_tree_key key = (splay_tree_key) var; |
953ff289 | 650 | |
d9a6bd32 JJ |
651 | if ((mask & 8) != 0) |
652 | { | |
653 | key = (splay_tree_key) &DECL_UID (var); | |
654 | gcc_checking_assert (key != (splay_tree_key) var); | |
655 | } | |
a68ab351 | 656 | gcc_assert ((mask & 1) == 0 |
d9a6bd32 | 657 | || !splay_tree_lookup (ctx->field_map, key)); |
a68ab351 | 658 | gcc_assert ((mask & 2) == 0 || !ctx->sfield_map |
d9a6bd32 | 659 | || !splay_tree_lookup (ctx->sfield_map, key)); |
41dbbb37 TS |
660 | gcc_assert ((mask & 3) == 3 |
661 | || !is_gimple_omp_oacc (ctx->stmt)); | |
953ff289 DN |
662 | |
663 | type = TREE_TYPE (var); | |
8498c16b TV |
664 | /* Prevent redeclaring the var in the split-off function with a restrict |
665 | pointer type. Note that we only clear type itself, restrict qualifiers in | |
666 | the pointed-to type will be ignored by points-to analysis. */ | |
667 | if (POINTER_TYPE_P (type) | |
668 | && TYPE_RESTRICT (type)) | |
669 | type = build_qualified_type (type, TYPE_QUALS (type) & ~TYPE_QUAL_RESTRICT); | |
670 | ||
acf0174b JJ |
671 | if (mask & 4) |
672 | { | |
673 | gcc_assert (TREE_CODE (type) == ARRAY_TYPE); | |
674 | type = build_pointer_type (build_pointer_type (type)); | |
675 | } | |
676 | else if (by_ref) | |
86938de6 TV |
677 | { |
678 | type = build_pointer_type (type); | |
679 | if (base_pointers_restrict) | |
680 | type = build_qualified_type (type, TYPE_QUAL_RESTRICT); | |
681 | } | |
629b3d75 | 682 | else if ((mask & 3) == 1 && omp_is_reference (var)) |
a68ab351 | 683 | type = TREE_TYPE (type); |
953ff289 | 684 | |
c2255bc4 AH |
685 | field = build_decl (DECL_SOURCE_LOCATION (var), |
686 | FIELD_DECL, DECL_NAME (var), type); | |
953ff289 DN |
687 | |
688 | /* Remember what variable this field was created for. This does have a | |
689 | side effect of making dwarf2out ignore this member, so for helpful | |
690 | debugging we clear it later in delete_omp_context. */ | |
691 | DECL_ABSTRACT_ORIGIN (field) = var; | |
a68ab351 JJ |
692 | if (type == TREE_TYPE (var)) |
693 | { | |
fe37c7af | 694 | SET_DECL_ALIGN (field, DECL_ALIGN (var)); |
a68ab351 JJ |
695 | DECL_USER_ALIGN (field) = DECL_USER_ALIGN (var); |
696 | TREE_THIS_VOLATILE (field) = TREE_THIS_VOLATILE (var); | |
697 | } | |
698 | else | |
fe37c7af | 699 | SET_DECL_ALIGN (field, TYPE_ALIGN (type)); |
953ff289 | 700 | |
a68ab351 JJ |
701 | if ((mask & 3) == 3) |
702 | { | |
703 | insert_field_into_struct (ctx->record_type, field); | |
704 | if (ctx->srecord_type) | |
705 | { | |
c2255bc4 AH |
706 | sfield = build_decl (DECL_SOURCE_LOCATION (var), |
707 | FIELD_DECL, DECL_NAME (var), type); | |
a68ab351 | 708 | DECL_ABSTRACT_ORIGIN (sfield) = var; |
fe37c7af | 709 | SET_DECL_ALIGN (sfield, DECL_ALIGN (field)); |
a68ab351 JJ |
710 | DECL_USER_ALIGN (sfield) = DECL_USER_ALIGN (field); |
711 | TREE_THIS_VOLATILE (sfield) = TREE_THIS_VOLATILE (field); | |
712 | insert_field_into_struct (ctx->srecord_type, sfield); | |
713 | } | |
714 | } | |
715 | else | |
716 | { | |
717 | if (ctx->srecord_type == NULL_TREE) | |
718 | { | |
719 | tree t; | |
720 | ||
721 | ctx->srecord_type = lang_hooks.types.make_type (RECORD_TYPE); | |
722 | ctx->sfield_map = splay_tree_new (splay_tree_compare_pointers, 0, 0); | |
723 | for (t = TYPE_FIELDS (ctx->record_type); t ; t = TREE_CHAIN (t)) | |
724 | { | |
d9a6bd32 | 725 | sfield = build_decl (DECL_SOURCE_LOCATION (t), |
c2255bc4 | 726 | FIELD_DECL, DECL_NAME (t), TREE_TYPE (t)); |
a68ab351 JJ |
727 | DECL_ABSTRACT_ORIGIN (sfield) = DECL_ABSTRACT_ORIGIN (t); |
728 | insert_field_into_struct (ctx->srecord_type, sfield); | |
729 | splay_tree_insert (ctx->sfield_map, | |
730 | (splay_tree_key) DECL_ABSTRACT_ORIGIN (t), | |
731 | (splay_tree_value) sfield); | |
732 | } | |
733 | } | |
734 | sfield = field; | |
735 | insert_field_into_struct ((mask & 1) ? ctx->record_type | |
736 | : ctx->srecord_type, field); | |
737 | } | |
953ff289 | 738 | |
a68ab351 | 739 | if (mask & 1) |
d9a6bd32 | 740 | splay_tree_insert (ctx->field_map, key, (splay_tree_value) field); |
a68ab351 | 741 | if ((mask & 2) && ctx->sfield_map) |
d9a6bd32 | 742 | splay_tree_insert (ctx->sfield_map, key, (splay_tree_value) sfield); |
953ff289 DN |
743 | } |
744 | ||
745 | static tree | |
746 | install_var_local (tree var, omp_context *ctx) | |
747 | { | |
748 | tree new_var = omp_copy_decl_1 (var, ctx); | |
749 | insert_decl_map (&ctx->cb, var, new_var); | |
750 | return new_var; | |
751 | } | |
752 | ||
753 | /* Adjust the replacement for DECL in CTX for the new context. This means | |
754 | copying the DECL_VALUE_EXPR, and fixing up the type. */ | |
755 | ||
756 | static void | |
757 | fixup_remapped_decl (tree decl, omp_context *ctx, bool private_debug) | |
758 | { | |
759 | tree new_decl, size; | |
760 | ||
761 | new_decl = lookup_decl (decl, ctx); | |
762 | ||
763 | TREE_TYPE (new_decl) = remap_type (TREE_TYPE (decl), &ctx->cb); | |
764 | ||
765 | if ((!TREE_CONSTANT (DECL_SIZE (new_decl)) || private_debug) | |
766 | && DECL_HAS_VALUE_EXPR_P (decl)) | |
767 | { | |
768 | tree ve = DECL_VALUE_EXPR (decl); | |
726a989a | 769 | walk_tree (&ve, copy_tree_body_r, &ctx->cb, NULL); |
953ff289 DN |
770 | SET_DECL_VALUE_EXPR (new_decl, ve); |
771 | DECL_HAS_VALUE_EXPR_P (new_decl) = 1; | |
772 | } | |
773 | ||
774 | if (!TREE_CONSTANT (DECL_SIZE (new_decl))) | |
775 | { | |
776 | size = remap_decl (DECL_SIZE (decl), &ctx->cb); | |
777 | if (size == error_mark_node) | |
778 | size = TYPE_SIZE (TREE_TYPE (new_decl)); | |
779 | DECL_SIZE (new_decl) = size; | |
780 | ||
781 | size = remap_decl (DECL_SIZE_UNIT (decl), &ctx->cb); | |
782 | if (size == error_mark_node) | |
783 | size = TYPE_SIZE_UNIT (TREE_TYPE (new_decl)); | |
784 | DECL_SIZE_UNIT (new_decl) = size; | |
785 | } | |
786 | } | |
787 | ||
788 | /* The callback for remap_decl. Search all containing contexts for a | |
789 | mapping of the variable; this avoids having to duplicate the splay | |
790 | tree ahead of time. We know a mapping doesn't already exist in the | |
791 | given context. Create new mappings to implement default semantics. */ | |
792 | ||
793 | static tree | |
794 | omp_copy_decl (tree var, copy_body_data *cb) | |
795 | { | |
796 | omp_context *ctx = (omp_context *) cb; | |
797 | tree new_var; | |
798 | ||
953ff289 DN |
799 | if (TREE_CODE (var) == LABEL_DECL) |
800 | { | |
50aa16c3 JJ |
801 | if (FORCED_LABEL (var) || DECL_NONLOCAL (var)) |
802 | return var; | |
c2255bc4 | 803 | new_var = create_artificial_label (DECL_SOURCE_LOCATION (var)); |
50674e96 | 804 | DECL_CONTEXT (new_var) = current_function_decl; |
953ff289 DN |
805 | insert_decl_map (&ctx->cb, var, new_var); |
806 | return new_var; | |
807 | } | |
808 | ||
a68ab351 | 809 | while (!is_taskreg_ctx (ctx)) |
953ff289 DN |
810 | { |
811 | ctx = ctx->outer; | |
812 | if (ctx == NULL) | |
813 | return var; | |
814 | new_var = maybe_lookup_decl (var, ctx); | |
815 | if (new_var) | |
816 | return new_var; | |
817 | } | |
818 | ||
8ca5b2a2 JJ |
819 | if (is_global_var (var) || decl_function_context (var) != ctx->cb.src_fn) |
820 | return var; | |
821 | ||
953ff289 DN |
822 | return error_mark_node; |
823 | } | |
824 | ||
629b3d75 | 825 | /* Create a new context, with OUTER_CTX being the surrounding context. */ |
50674e96 | 826 | |
629b3d75 MJ |
827 | static omp_context * |
828 | new_omp_context (gimple *stmt, omp_context *outer_ctx) | |
50674e96 | 829 | { |
629b3d75 | 830 | omp_context *ctx = XCNEW (omp_context); |
50674e96 | 831 | |
629b3d75 MJ |
832 | splay_tree_insert (all_contexts, (splay_tree_key) stmt, |
833 | (splay_tree_value) ctx); | |
834 | ctx->stmt = stmt; | |
50674e96 | 835 | |
629b3d75 | 836 | if (outer_ctx) |
777f7f9a | 837 | { |
629b3d75 MJ |
838 | ctx->outer = outer_ctx; |
839 | ctx->cb = outer_ctx->cb; | |
840 | ctx->cb.block = NULL; | |
841 | ctx->depth = outer_ctx->depth + 1; | |
953ff289 DN |
842 | } |
843 | else | |
844 | { | |
845 | ctx->cb.src_fn = current_function_decl; | |
846 | ctx->cb.dst_fn = current_function_decl; | |
d52f5295 | 847 | ctx->cb.src_node = cgraph_node::get (current_function_decl); |
fe660d7b | 848 | gcc_checking_assert (ctx->cb.src_node); |
953ff289 DN |
849 | ctx->cb.dst_node = ctx->cb.src_node; |
850 | ctx->cb.src_cfun = cfun; | |
851 | ctx->cb.copy_decl = omp_copy_decl; | |
1d65f45c | 852 | ctx->cb.eh_lp_nr = 0; |
953ff289 DN |
853 | ctx->cb.transform_call_graph_edges = CB_CGE_MOVE; |
854 | ctx->depth = 1; | |
855 | } | |
856 | ||
b787e7a2 | 857 | ctx->cb.decl_map = new hash_map<tree, tree>; |
953ff289 DN |
858 | |
859 | return ctx; | |
860 | } | |
861 | ||
726a989a | 862 | static gimple_seq maybe_catch_exception (gimple_seq); |
2368a460 JJ |
863 | |
864 | /* Finalize task copyfn. */ | |
865 | ||
866 | static void | |
538dd0b7 | 867 | finalize_task_copyfn (gomp_task *task_stmt) |
2368a460 JJ |
868 | { |
869 | struct function *child_cfun; | |
af16bc76 | 870 | tree child_fn; |
355a7673 | 871 | gimple_seq seq = NULL, new_seq; |
538dd0b7 | 872 | gbind *bind; |
2368a460 | 873 | |
726a989a | 874 | child_fn = gimple_omp_task_copy_fn (task_stmt); |
2368a460 JJ |
875 | if (child_fn == NULL_TREE) |
876 | return; | |
877 | ||
878 | child_cfun = DECL_STRUCT_FUNCTION (child_fn); | |
d7ed20db | 879 | DECL_STRUCT_FUNCTION (child_fn)->curr_properties = cfun->curr_properties; |
2368a460 | 880 | |
2368a460 | 881 | push_cfun (child_cfun); |
3ad065ef | 882 | bind = gimplify_body (child_fn, false); |
726a989a RB |
883 | gimple_seq_add_stmt (&seq, bind); |
884 | new_seq = maybe_catch_exception (seq); | |
885 | if (new_seq != seq) | |
886 | { | |
887 | bind = gimple_build_bind (NULL, new_seq, NULL); | |
355a7673 | 888 | seq = NULL; |
726a989a RB |
889 | gimple_seq_add_stmt (&seq, bind); |
890 | } | |
891 | gimple_set_body (child_fn, seq); | |
2368a460 | 892 | pop_cfun (); |
2368a460 | 893 | |
d7ed20db | 894 | /* Inform the callgraph about the new function. */ |
edafad14 TV |
895 | cgraph_node *node = cgraph_node::get_create (child_fn); |
896 | node->parallelized_function = 1; | |
d52f5295 | 897 | cgraph_node::add_new_function (child_fn, false); |
2368a460 JJ |
898 | } |
899 | ||
953ff289 DN |
900 | /* Destroy a omp_context data structures. Called through the splay tree |
901 | value delete callback. */ | |
902 | ||
903 | static void | |
904 | delete_omp_context (splay_tree_value value) | |
905 | { | |
906 | omp_context *ctx = (omp_context *) value; | |
907 | ||
b787e7a2 | 908 | delete ctx->cb.decl_map; |
953ff289 DN |
909 | |
910 | if (ctx->field_map) | |
911 | splay_tree_delete (ctx->field_map); | |
a68ab351 JJ |
912 | if (ctx->sfield_map) |
913 | splay_tree_delete (ctx->sfield_map); | |
953ff289 DN |
914 | |
915 | /* We hijacked DECL_ABSTRACT_ORIGIN earlier. We need to clear it before | |
916 | it produces corrupt debug information. */ | |
917 | if (ctx->record_type) | |
918 | { | |
919 | tree t; | |
910ad8de | 920 | for (t = TYPE_FIELDS (ctx->record_type); t ; t = DECL_CHAIN (t)) |
953ff289 DN |
921 | DECL_ABSTRACT_ORIGIN (t) = NULL; |
922 | } | |
a68ab351 JJ |
923 | if (ctx->srecord_type) |
924 | { | |
925 | tree t; | |
910ad8de | 926 | for (t = TYPE_FIELDS (ctx->srecord_type); t ; t = DECL_CHAIN (t)) |
a68ab351 JJ |
927 | DECL_ABSTRACT_ORIGIN (t) = NULL; |
928 | } | |
953ff289 | 929 | |
2368a460 | 930 | if (is_task_ctx (ctx)) |
538dd0b7 | 931 | finalize_task_copyfn (as_a <gomp_task *> (ctx->stmt)); |
2368a460 | 932 | |
953ff289 DN |
933 | XDELETE (ctx); |
934 | } | |
935 | ||
936 | /* Fix up RECEIVER_DECL with a type that has been remapped to the child | |
937 | context. */ | |
938 | ||
939 | static void | |
940 | fixup_child_record_type (omp_context *ctx) | |
941 | { | |
942 | tree f, type = ctx->record_type; | |
943 | ||
b2b40051 MJ |
944 | if (!ctx->receiver_decl) |
945 | return; | |
953ff289 DN |
946 | /* ??? It isn't sufficient to just call remap_type here, because |
947 | variably_modified_type_p doesn't work the way we expect for | |
948 | record types. Testing each field for whether it needs remapping | |
949 | and creating a new record by hand works, however. */ | |
910ad8de | 950 | for (f = TYPE_FIELDS (type); f ; f = DECL_CHAIN (f)) |
953ff289 DN |
951 | if (variably_modified_type_p (TREE_TYPE (f), ctx->cb.src_fn)) |
952 | break; | |
953 | if (f) | |
954 | { | |
955 | tree name, new_fields = NULL; | |
956 | ||
957 | type = lang_hooks.types.make_type (RECORD_TYPE); | |
958 | name = DECL_NAME (TYPE_NAME (ctx->record_type)); | |
c2255bc4 AH |
959 | name = build_decl (DECL_SOURCE_LOCATION (ctx->receiver_decl), |
960 | TYPE_DECL, name, type); | |
953ff289 DN |
961 | TYPE_NAME (type) = name; |
962 | ||
910ad8de | 963 | for (f = TYPE_FIELDS (ctx->record_type); f ; f = DECL_CHAIN (f)) |
953ff289 DN |
964 | { |
965 | tree new_f = copy_node (f); | |
966 | DECL_CONTEXT (new_f) = type; | |
967 | TREE_TYPE (new_f) = remap_type (TREE_TYPE (f), &ctx->cb); | |
910ad8de | 968 | DECL_CHAIN (new_f) = new_fields; |
726a989a RB |
969 | walk_tree (&DECL_SIZE (new_f), copy_tree_body_r, &ctx->cb, NULL); |
970 | walk_tree (&DECL_SIZE_UNIT (new_f), copy_tree_body_r, | |
971 | &ctx->cb, NULL); | |
972 | walk_tree (&DECL_FIELD_OFFSET (new_f), copy_tree_body_r, | |
973 | &ctx->cb, NULL); | |
953ff289 DN |
974 | new_fields = new_f; |
975 | ||
976 | /* Arrange to be able to look up the receiver field | |
977 | given the sender field. */ | |
978 | splay_tree_insert (ctx->field_map, (splay_tree_key) f, | |
979 | (splay_tree_value) new_f); | |
980 | } | |
981 | TYPE_FIELDS (type) = nreverse (new_fields); | |
982 | layout_type (type); | |
983 | } | |
984 | ||
d9a6bd32 JJ |
985 | /* In a target region we never modify any of the pointers in *.omp_data_i, |
986 | so attempt to help the optimizers. */ | |
987 | if (is_gimple_omp_offloaded (ctx->stmt)) | |
988 | type = build_qualified_type (type, TYPE_QUAL_CONST); | |
989 | ||
a2a2fe4b RB |
990 | TREE_TYPE (ctx->receiver_decl) |
991 | = build_qualified_type (build_reference_type (type), TYPE_QUAL_RESTRICT); | |
953ff289 DN |
992 | } |
993 | ||
994 | /* Instantiate decls as necessary in CTX to satisfy the data sharing | |
86938de6 TV |
995 | specified by CLAUSES. If BASE_POINTERS_RESTRICT, install var field with |
996 | restrict. */ | |
953ff289 DN |
997 | |
998 | static void | |
86938de6 TV |
999 | scan_sharing_clauses (tree clauses, omp_context *ctx, |
1000 | bool base_pointers_restrict = false) | |
953ff289 DN |
1001 | { |
1002 | tree c, decl; | |
1003 | bool scan_array_reductions = false; | |
1004 | ||
1005 | for (c = clauses; c; c = OMP_CLAUSE_CHAIN (c)) | |
1006 | { | |
1007 | bool by_ref; | |
1008 | ||
aaf46ef9 | 1009 | switch (OMP_CLAUSE_CODE (c)) |
953ff289 DN |
1010 | { |
1011 | case OMP_CLAUSE_PRIVATE: | |
1012 | decl = OMP_CLAUSE_DECL (c); | |
a68ab351 JJ |
1013 | if (OMP_CLAUSE_PRIVATE_OUTER_REF (c)) |
1014 | goto do_private; | |
1015 | else if (!is_variable_sized (decl)) | |
953ff289 DN |
1016 | install_var_local (decl, ctx); |
1017 | break; | |
1018 | ||
1019 | case OMP_CLAUSE_SHARED: | |
9cf32741 | 1020 | decl = OMP_CLAUSE_DECL (c); |
acf0174b JJ |
1021 | /* Ignore shared directives in teams construct. */ |
1022 | if (gimple_code (ctx->stmt) == GIMPLE_OMP_TEAMS) | |
9cf32741 JJ |
1023 | { |
1024 | /* Global variables don't need to be copied, | |
1025 | the receiver side will use them directly. */ | |
1026 | tree odecl = maybe_lookup_decl_in_outer_ctx (decl, ctx); | |
1027 | if (is_global_var (odecl)) | |
1028 | break; | |
1029 | insert_decl_map (&ctx->cb, decl, odecl); | |
1030 | break; | |
1031 | } | |
a68ab351 | 1032 | gcc_assert (is_taskreg_ctx (ctx)); |
5da250fc JJ |
1033 | gcc_assert (!COMPLETE_TYPE_P (TREE_TYPE (decl)) |
1034 | || !is_variable_sized (decl)); | |
8ca5b2a2 JJ |
1035 | /* Global variables don't need to be copied, |
1036 | the receiver side will use them directly. */ | |
1037 | if (is_global_var (maybe_lookup_decl_in_outer_ctx (decl, ctx))) | |
1038 | break; | |
d9a6bd32 | 1039 | if (OMP_CLAUSE_SHARED_FIRSTPRIVATE (c)) |
1a80d6b8 JJ |
1040 | { |
1041 | use_pointer_for_field (decl, ctx); | |
1042 | break; | |
1043 | } | |
1044 | by_ref = use_pointer_for_field (decl, NULL); | |
1045 | if ((! TREE_READONLY (decl) && !OMP_CLAUSE_SHARED_READONLY (c)) | |
953ff289 DN |
1046 | || TREE_ADDRESSABLE (decl) |
1047 | || by_ref | |
629b3d75 | 1048 | || omp_is_reference (decl)) |
953ff289 | 1049 | { |
1a80d6b8 | 1050 | by_ref = use_pointer_for_field (decl, ctx); |
a68ab351 | 1051 | install_var_field (decl, by_ref, 3, ctx); |
953ff289 DN |
1052 | install_var_local (decl, ctx); |
1053 | break; | |
1054 | } | |
1055 | /* We don't need to copy const scalar vars back. */ | |
aaf46ef9 | 1056 | OMP_CLAUSE_SET_CODE (c, OMP_CLAUSE_FIRSTPRIVATE); |
953ff289 DN |
1057 | goto do_private; |
1058 | ||
d9a6bd32 JJ |
1059 | case OMP_CLAUSE_REDUCTION: |
1060 | decl = OMP_CLAUSE_DECL (c); | |
1061 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_REDUCTION | |
1062 | && TREE_CODE (decl) == MEM_REF) | |
1063 | { | |
1064 | tree t = TREE_OPERAND (decl, 0); | |
e01d41e5 JJ |
1065 | if (TREE_CODE (t) == POINTER_PLUS_EXPR) |
1066 | t = TREE_OPERAND (t, 0); | |
d9a6bd32 JJ |
1067 | if (TREE_CODE (t) == INDIRECT_REF |
1068 | || TREE_CODE (t) == ADDR_EXPR) | |
1069 | t = TREE_OPERAND (t, 0); | |
1070 | install_var_local (t, ctx); | |
1071 | if (is_taskreg_ctx (ctx) | |
1072 | && !is_global_var (maybe_lookup_decl_in_outer_ctx (t, ctx)) | |
1073 | && !is_variable_sized (t)) | |
1074 | { | |
1075 | by_ref = use_pointer_for_field (t, ctx); | |
1076 | install_var_field (t, by_ref, 3, ctx); | |
1077 | } | |
1078 | break; | |
1079 | } | |
1080 | goto do_private; | |
1081 | ||
953ff289 DN |
1082 | case OMP_CLAUSE_LASTPRIVATE: |
1083 | /* Let the corresponding firstprivate clause create | |
1084 | the variable. */ | |
1085 | if (OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE (c)) | |
1086 | break; | |
1087 | /* FALLTHRU */ | |
1088 | ||
1089 | case OMP_CLAUSE_FIRSTPRIVATE: | |
74bf76ed | 1090 | case OMP_CLAUSE_LINEAR: |
953ff289 DN |
1091 | decl = OMP_CLAUSE_DECL (c); |
1092 | do_private: | |
d9a6bd32 JJ |
1093 | if ((OMP_CLAUSE_CODE (c) == OMP_CLAUSE_FIRSTPRIVATE |
1094 | || OMP_CLAUSE_CODE (c) == OMP_CLAUSE_IS_DEVICE_PTR) | |
1095 | && is_gimple_omp_offloaded (ctx->stmt)) | |
1096 | { | |
1097 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_FIRSTPRIVATE) | |
629b3d75 | 1098 | install_var_field (decl, !omp_is_reference (decl), 3, ctx); |
d9a6bd32 JJ |
1099 | else if (TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE) |
1100 | install_var_field (decl, true, 3, ctx); | |
1101 | else | |
1102 | install_var_field (decl, false, 3, ctx); | |
1103 | } | |
953ff289 | 1104 | if (is_variable_sized (decl)) |
953ff289 | 1105 | { |
a68ab351 JJ |
1106 | if (is_task_ctx (ctx)) |
1107 | install_var_field (decl, false, 1, ctx); | |
1108 | break; | |
1109 | } | |
1110 | else if (is_taskreg_ctx (ctx)) | |
1111 | { | |
1112 | bool global | |
1113 | = is_global_var (maybe_lookup_decl_in_outer_ctx (decl, ctx)); | |
7c8f7639 | 1114 | by_ref = use_pointer_for_field (decl, NULL); |
a68ab351 JJ |
1115 | |
1116 | if (is_task_ctx (ctx) | |
629b3d75 | 1117 | && (global || by_ref || omp_is_reference (decl))) |
a68ab351 JJ |
1118 | { |
1119 | install_var_field (decl, false, 1, ctx); | |
1120 | if (!global) | |
1121 | install_var_field (decl, by_ref, 2, ctx); | |
1122 | } | |
1123 | else if (!global) | |
1124 | install_var_field (decl, by_ref, 3, ctx); | |
953ff289 DN |
1125 | } |
1126 | install_var_local (decl, ctx); | |
1127 | break; | |
1128 | ||
d9a6bd32 JJ |
1129 | case OMP_CLAUSE_USE_DEVICE_PTR: |
1130 | decl = OMP_CLAUSE_DECL (c); | |
1131 | if (TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE) | |
1132 | install_var_field (decl, true, 3, ctx); | |
1133 | else | |
1134 | install_var_field (decl, false, 3, ctx); | |
1135 | if (DECL_SIZE (decl) | |
1136 | && TREE_CODE (DECL_SIZE (decl)) != INTEGER_CST) | |
1137 | { | |
1138 | tree decl2 = DECL_VALUE_EXPR (decl); | |
1139 | gcc_assert (TREE_CODE (decl2) == INDIRECT_REF); | |
1140 | decl2 = TREE_OPERAND (decl2, 0); | |
1141 | gcc_assert (DECL_P (decl2)); | |
1142 | install_var_local (decl2, ctx); | |
1143 | } | |
1144 | install_var_local (decl, ctx); | |
1145 | break; | |
1146 | ||
1147 | case OMP_CLAUSE_IS_DEVICE_PTR: | |
1148 | decl = OMP_CLAUSE_DECL (c); | |
1149 | goto do_private; | |
1150 | ||
acf0174b | 1151 | case OMP_CLAUSE__LOOPTEMP_: |
d9a6bd32 | 1152 | gcc_assert (is_taskreg_ctx (ctx)); |
acf0174b JJ |
1153 | decl = OMP_CLAUSE_DECL (c); |
1154 | install_var_field (decl, false, 3, ctx); | |
1155 | install_var_local (decl, ctx); | |
1156 | break; | |
1157 | ||
953ff289 | 1158 | case OMP_CLAUSE_COPYPRIVATE: |
953ff289 DN |
1159 | case OMP_CLAUSE_COPYIN: |
1160 | decl = OMP_CLAUSE_DECL (c); | |
7c8f7639 | 1161 | by_ref = use_pointer_for_field (decl, NULL); |
a68ab351 | 1162 | install_var_field (decl, by_ref, 3, ctx); |
953ff289 DN |
1163 | break; |
1164 | ||
20906c66 | 1165 | case OMP_CLAUSE_FINAL: |
953ff289 DN |
1166 | case OMP_CLAUSE_IF: |
1167 | case OMP_CLAUSE_NUM_THREADS: | |
acf0174b JJ |
1168 | case OMP_CLAUSE_NUM_TEAMS: |
1169 | case OMP_CLAUSE_THREAD_LIMIT: | |
1170 | case OMP_CLAUSE_DEVICE: | |
953ff289 | 1171 | case OMP_CLAUSE_SCHEDULE: |
acf0174b JJ |
1172 | case OMP_CLAUSE_DIST_SCHEDULE: |
1173 | case OMP_CLAUSE_DEPEND: | |
d9a6bd32 JJ |
1174 | case OMP_CLAUSE_PRIORITY: |
1175 | case OMP_CLAUSE_GRAINSIZE: | |
1176 | case OMP_CLAUSE_NUM_TASKS: | |
41dbbb37 TS |
1177 | case OMP_CLAUSE_NUM_GANGS: |
1178 | case OMP_CLAUSE_NUM_WORKERS: | |
1179 | case OMP_CLAUSE_VECTOR_LENGTH: | |
953ff289 | 1180 | if (ctx->outer) |
726a989a | 1181 | scan_omp_op (&OMP_CLAUSE_OPERAND (c, 0), ctx->outer); |
953ff289 DN |
1182 | break; |
1183 | ||
acf0174b JJ |
1184 | case OMP_CLAUSE_TO: |
1185 | case OMP_CLAUSE_FROM: | |
1186 | case OMP_CLAUSE_MAP: | |
1187 | if (ctx->outer) | |
1188 | scan_omp_op (&OMP_CLAUSE_SIZE (c), ctx->outer); | |
1189 | decl = OMP_CLAUSE_DECL (c); | |
1190 | /* Global variables with "omp declare target" attribute | |
1191 | don't need to be copied, the receiver side will use them | |
4a38b02b IV |
1192 | directly. However, global variables with "omp declare target link" |
1193 | attribute need to be copied. */ | |
acf0174b JJ |
1194 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP |
1195 | && DECL_P (decl) | |
e01d41e5 JJ |
1196 | && ((OMP_CLAUSE_MAP_KIND (c) != GOMP_MAP_FIRSTPRIVATE_POINTER |
1197 | && (OMP_CLAUSE_MAP_KIND (c) | |
1198 | != GOMP_MAP_FIRSTPRIVATE_REFERENCE)) | |
d9a6bd32 | 1199 | || TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE) |
acf0174b | 1200 | && is_global_var (maybe_lookup_decl_in_outer_ctx (decl, ctx)) |
4a38b02b IV |
1201 | && varpool_node::get_create (decl)->offloadable |
1202 | && !lookup_attribute ("omp declare target link", | |
1203 | DECL_ATTRIBUTES (decl))) | |
acf0174b JJ |
1204 | break; |
1205 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP | |
41dbbb37 | 1206 | && OMP_CLAUSE_MAP_KIND (c) == GOMP_MAP_POINTER) |
acf0174b | 1207 | { |
41dbbb37 TS |
1208 | /* Ignore GOMP_MAP_POINTER kind for arrays in regions that are |
1209 | not offloaded; there is nothing to map for those. */ | |
1210 | if (!is_gimple_omp_offloaded (ctx->stmt) | |
b8910447 JJ |
1211 | && !POINTER_TYPE_P (TREE_TYPE (decl)) |
1212 | && !OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (c)) | |
acf0174b JJ |
1213 | break; |
1214 | } | |
d9a6bd32 | 1215 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP |
e01d41e5 JJ |
1216 | && (OMP_CLAUSE_MAP_KIND (c) == GOMP_MAP_FIRSTPRIVATE_POINTER |
1217 | || (OMP_CLAUSE_MAP_KIND (c) | |
1218 | == GOMP_MAP_FIRSTPRIVATE_REFERENCE))) | |
d9a6bd32 JJ |
1219 | { |
1220 | if (TREE_CODE (decl) == COMPONENT_REF | |
1221 | || (TREE_CODE (decl) == INDIRECT_REF | |
1222 | && TREE_CODE (TREE_OPERAND (decl, 0)) == COMPONENT_REF | |
1223 | && (TREE_CODE (TREE_TYPE (TREE_OPERAND (decl, 0))) | |
1224 | == REFERENCE_TYPE))) | |
1225 | break; | |
1226 | if (DECL_SIZE (decl) | |
1227 | && TREE_CODE (DECL_SIZE (decl)) != INTEGER_CST) | |
1228 | { | |
1229 | tree decl2 = DECL_VALUE_EXPR (decl); | |
1230 | gcc_assert (TREE_CODE (decl2) == INDIRECT_REF); | |
1231 | decl2 = TREE_OPERAND (decl2, 0); | |
1232 | gcc_assert (DECL_P (decl2)); | |
1233 | install_var_local (decl2, ctx); | |
1234 | } | |
1235 | install_var_local (decl, ctx); | |
1236 | break; | |
1237 | } | |
acf0174b JJ |
1238 | if (DECL_P (decl)) |
1239 | { | |
1240 | if (DECL_SIZE (decl) | |
1241 | && TREE_CODE (DECL_SIZE (decl)) != INTEGER_CST) | |
1242 | { | |
1243 | tree decl2 = DECL_VALUE_EXPR (decl); | |
1244 | gcc_assert (TREE_CODE (decl2) == INDIRECT_REF); | |
1245 | decl2 = TREE_OPERAND (decl2, 0); | |
1246 | gcc_assert (DECL_P (decl2)); | |
e01d41e5 | 1247 | install_var_field (decl2, true, 3, ctx); |
acf0174b JJ |
1248 | install_var_local (decl2, ctx); |
1249 | install_var_local (decl, ctx); | |
1250 | } | |
1251 | else | |
1252 | { | |
1253 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP | |
41dbbb37 | 1254 | && OMP_CLAUSE_MAP_KIND (c) == GOMP_MAP_POINTER |
acf0174b JJ |
1255 | && !OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (c) |
1256 | && TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE) | |
1257 | install_var_field (decl, true, 7, ctx); | |
1258 | else | |
86938de6 TV |
1259 | install_var_field (decl, true, 3, ctx, |
1260 | base_pointers_restrict); | |
c42cfb5c CP |
1261 | if (is_gimple_omp_offloaded (ctx->stmt) |
1262 | && !OMP_CLAUSE_MAP_IN_REDUCTION (c)) | |
acf0174b JJ |
1263 | install_var_local (decl, ctx); |
1264 | } | |
1265 | } | |
1266 | else | |
1267 | { | |
1268 | tree base = get_base_address (decl); | |
1269 | tree nc = OMP_CLAUSE_CHAIN (c); | |
1270 | if (DECL_P (base) | |
1271 | && nc != NULL_TREE | |
1272 | && OMP_CLAUSE_CODE (nc) == OMP_CLAUSE_MAP | |
1273 | && OMP_CLAUSE_DECL (nc) == base | |
41dbbb37 | 1274 | && OMP_CLAUSE_MAP_KIND (nc) == GOMP_MAP_POINTER |
acf0174b JJ |
1275 | && integer_zerop (OMP_CLAUSE_SIZE (nc))) |
1276 | { | |
1277 | OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (c) = 1; | |
1278 | OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (nc) = 1; | |
1279 | } | |
1280 | else | |
1281 | { | |
f014c653 JJ |
1282 | if (ctx->outer) |
1283 | { | |
1284 | scan_omp_op (&OMP_CLAUSE_DECL (c), ctx->outer); | |
1285 | decl = OMP_CLAUSE_DECL (c); | |
1286 | } | |
acf0174b JJ |
1287 | gcc_assert (!splay_tree_lookup (ctx->field_map, |
1288 | (splay_tree_key) decl)); | |
1289 | tree field | |
1290 | = build_decl (OMP_CLAUSE_LOCATION (c), | |
1291 | FIELD_DECL, NULL_TREE, ptr_type_node); | |
fe37c7af | 1292 | SET_DECL_ALIGN (field, TYPE_ALIGN (ptr_type_node)); |
acf0174b JJ |
1293 | insert_field_into_struct (ctx->record_type, field); |
1294 | splay_tree_insert (ctx->field_map, (splay_tree_key) decl, | |
1295 | (splay_tree_value) field); | |
1296 | } | |
1297 | } | |
1298 | break; | |
1299 | ||
b2b40051 MJ |
1300 | case OMP_CLAUSE__GRIDDIM_: |
1301 | if (ctx->outer) | |
1302 | { | |
1303 | scan_omp_op (&OMP_CLAUSE__GRIDDIM__SIZE (c), ctx->outer); | |
1304 | scan_omp_op (&OMP_CLAUSE__GRIDDIM__GROUP (c), ctx->outer); | |
1305 | } | |
1306 | break; | |
1307 | ||
953ff289 DN |
1308 | case OMP_CLAUSE_NOWAIT: |
1309 | case OMP_CLAUSE_ORDERED: | |
a68ab351 JJ |
1310 | case OMP_CLAUSE_COLLAPSE: |
1311 | case OMP_CLAUSE_UNTIED: | |
20906c66 | 1312 | case OMP_CLAUSE_MERGEABLE: |
acf0174b | 1313 | case OMP_CLAUSE_PROC_BIND: |
74bf76ed | 1314 | case OMP_CLAUSE_SAFELEN: |
d9a6bd32 JJ |
1315 | case OMP_CLAUSE_SIMDLEN: |
1316 | case OMP_CLAUSE_THREADS: | |
1317 | case OMP_CLAUSE_SIMD: | |
1318 | case OMP_CLAUSE_NOGROUP: | |
1319 | case OMP_CLAUSE_DEFAULTMAP: | |
41dbbb37 TS |
1320 | case OMP_CLAUSE_ASYNC: |
1321 | case OMP_CLAUSE_WAIT: | |
1322 | case OMP_CLAUSE_GANG: | |
1323 | case OMP_CLAUSE_WORKER: | |
1324 | case OMP_CLAUSE_VECTOR: | |
c5a64cfe NS |
1325 | case OMP_CLAUSE_INDEPENDENT: |
1326 | case OMP_CLAUSE_AUTO: | |
1327 | case OMP_CLAUSE_SEQ: | |
02889d23 | 1328 | case OMP_CLAUSE_TILE: |
6c7509bc | 1329 | case OMP_CLAUSE__SIMT_: |
8a4674bb | 1330 | case OMP_CLAUSE_DEFAULT: |
953ff289 DN |
1331 | break; |
1332 | ||
acf0174b JJ |
1333 | case OMP_CLAUSE_ALIGNED: |
1334 | decl = OMP_CLAUSE_DECL (c); | |
1335 | if (is_global_var (decl) | |
1336 | && TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE) | |
1337 | install_var_local (decl, ctx); | |
1338 | break; | |
1339 | ||
41dbbb37 | 1340 | case OMP_CLAUSE__CACHE_: |
953ff289 DN |
1341 | default: |
1342 | gcc_unreachable (); | |
1343 | } | |
1344 | } | |
1345 | ||
1346 | for (c = clauses; c; c = OMP_CLAUSE_CHAIN (c)) | |
1347 | { | |
aaf46ef9 | 1348 | switch (OMP_CLAUSE_CODE (c)) |
953ff289 DN |
1349 | { |
1350 | case OMP_CLAUSE_LASTPRIVATE: | |
1351 | /* Let the corresponding firstprivate clause create | |
1352 | the variable. */ | |
726a989a | 1353 | if (OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c)) |
a68ab351 | 1354 | scan_array_reductions = true; |
953ff289 DN |
1355 | if (OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE (c)) |
1356 | break; | |
1357 | /* FALLTHRU */ | |
1358 | ||
953ff289 | 1359 | case OMP_CLAUSE_FIRSTPRIVATE: |
41dbbb37 | 1360 | case OMP_CLAUSE_PRIVATE: |
74bf76ed | 1361 | case OMP_CLAUSE_LINEAR: |
d9a6bd32 | 1362 | case OMP_CLAUSE_IS_DEVICE_PTR: |
953ff289 DN |
1363 | decl = OMP_CLAUSE_DECL (c); |
1364 | if (is_variable_sized (decl)) | |
d9a6bd32 JJ |
1365 | { |
1366 | if ((OMP_CLAUSE_CODE (c) == OMP_CLAUSE_FIRSTPRIVATE | |
1367 | || OMP_CLAUSE_CODE (c) == OMP_CLAUSE_IS_DEVICE_PTR) | |
1368 | && is_gimple_omp_offloaded (ctx->stmt)) | |
1369 | { | |
1370 | tree decl2 = DECL_VALUE_EXPR (decl); | |
1371 | gcc_assert (TREE_CODE (decl2) == INDIRECT_REF); | |
1372 | decl2 = TREE_OPERAND (decl2, 0); | |
1373 | gcc_assert (DECL_P (decl2)); | |
1374 | install_var_local (decl2, ctx); | |
1375 | fixup_remapped_decl (decl2, ctx, false); | |
1376 | } | |
1377 | install_var_local (decl, ctx); | |
1378 | } | |
953ff289 | 1379 | fixup_remapped_decl (decl, ctx, |
aaf46ef9 | 1380 | OMP_CLAUSE_CODE (c) == OMP_CLAUSE_PRIVATE |
953ff289 | 1381 | && OMP_CLAUSE_PRIVATE_DEBUG (c)); |
d9a6bd32 JJ |
1382 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LINEAR |
1383 | && OMP_CLAUSE_LINEAR_GIMPLE_SEQ (c)) | |
953ff289 | 1384 | scan_array_reductions = true; |
d9a6bd32 JJ |
1385 | break; |
1386 | ||
1387 | case OMP_CLAUSE_REDUCTION: | |
1388 | decl = OMP_CLAUSE_DECL (c); | |
1389 | if (TREE_CODE (decl) != MEM_REF) | |
1390 | { | |
1391 | if (is_variable_sized (decl)) | |
1392 | install_var_local (decl, ctx); | |
1393 | fixup_remapped_decl (decl, ctx, false); | |
1394 | } | |
1395 | if (OMP_CLAUSE_REDUCTION_PLACEHOLDER (c)) | |
f7468577 | 1396 | scan_array_reductions = true; |
953ff289 DN |
1397 | break; |
1398 | ||
1399 | case OMP_CLAUSE_SHARED: | |
acf0174b JJ |
1400 | /* Ignore shared directives in teams construct. */ |
1401 | if (gimple_code (ctx->stmt) == GIMPLE_OMP_TEAMS) | |
1402 | break; | |
953ff289 | 1403 | decl = OMP_CLAUSE_DECL (c); |
d9a6bd32 JJ |
1404 | if (is_global_var (maybe_lookup_decl_in_outer_ctx (decl, ctx))) |
1405 | break; | |
1406 | if (OMP_CLAUSE_SHARED_FIRSTPRIVATE (c)) | |
1407 | { | |
1408 | if (is_global_var (maybe_lookup_decl_in_outer_ctx (decl, | |
1409 | ctx->outer))) | |
1410 | break; | |
1411 | bool by_ref = use_pointer_for_field (decl, ctx); | |
1412 | install_var_field (decl, by_ref, 11, ctx); | |
1413 | break; | |
1414 | } | |
1415 | fixup_remapped_decl (decl, ctx, false); | |
953ff289 DN |
1416 | break; |
1417 | ||
acf0174b | 1418 | case OMP_CLAUSE_MAP: |
41dbbb37 | 1419 | if (!is_gimple_omp_offloaded (ctx->stmt)) |
acf0174b JJ |
1420 | break; |
1421 | decl = OMP_CLAUSE_DECL (c); | |
1422 | if (DECL_P (decl) | |
e01d41e5 JJ |
1423 | && ((OMP_CLAUSE_MAP_KIND (c) != GOMP_MAP_FIRSTPRIVATE_POINTER |
1424 | && (OMP_CLAUSE_MAP_KIND (c) | |
1425 | != GOMP_MAP_FIRSTPRIVATE_REFERENCE)) | |
d9a6bd32 | 1426 | || TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE) |
acf0174b | 1427 | && is_global_var (maybe_lookup_decl_in_outer_ctx (decl, ctx)) |
1f6be682 | 1428 | && varpool_node::get_create (decl)->offloadable) |
acf0174b JJ |
1429 | break; |
1430 | if (DECL_P (decl)) | |
1431 | { | |
d9a6bd32 JJ |
1432 | if ((OMP_CLAUSE_MAP_KIND (c) == GOMP_MAP_POINTER |
1433 | || OMP_CLAUSE_MAP_KIND (c) == GOMP_MAP_FIRSTPRIVATE_POINTER) | |
acf0174b JJ |
1434 | && TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE |
1435 | && !COMPLETE_TYPE_P (TREE_TYPE (decl))) | |
1436 | { | |
1437 | tree new_decl = lookup_decl (decl, ctx); | |
1438 | TREE_TYPE (new_decl) | |
1439 | = remap_type (TREE_TYPE (decl), &ctx->cb); | |
1440 | } | |
1441 | else if (DECL_SIZE (decl) | |
1442 | && TREE_CODE (DECL_SIZE (decl)) != INTEGER_CST) | |
1443 | { | |
1444 | tree decl2 = DECL_VALUE_EXPR (decl); | |
1445 | gcc_assert (TREE_CODE (decl2) == INDIRECT_REF); | |
1446 | decl2 = TREE_OPERAND (decl2, 0); | |
1447 | gcc_assert (DECL_P (decl2)); | |
1448 | fixup_remapped_decl (decl2, ctx, false); | |
1449 | fixup_remapped_decl (decl, ctx, true); | |
1450 | } | |
1451 | else | |
1452 | fixup_remapped_decl (decl, ctx, false); | |
1453 | } | |
1454 | break; | |
1455 | ||
953ff289 DN |
1456 | case OMP_CLAUSE_COPYPRIVATE: |
1457 | case OMP_CLAUSE_COPYIN: | |
1458 | case OMP_CLAUSE_DEFAULT: | |
1459 | case OMP_CLAUSE_IF: | |
1460 | case OMP_CLAUSE_NUM_THREADS: | |
acf0174b JJ |
1461 | case OMP_CLAUSE_NUM_TEAMS: |
1462 | case OMP_CLAUSE_THREAD_LIMIT: | |
1463 | case OMP_CLAUSE_DEVICE: | |
953ff289 | 1464 | case OMP_CLAUSE_SCHEDULE: |
acf0174b | 1465 | case OMP_CLAUSE_DIST_SCHEDULE: |
953ff289 DN |
1466 | case OMP_CLAUSE_NOWAIT: |
1467 | case OMP_CLAUSE_ORDERED: | |
a68ab351 JJ |
1468 | case OMP_CLAUSE_COLLAPSE: |
1469 | case OMP_CLAUSE_UNTIED: | |
20906c66 JJ |
1470 | case OMP_CLAUSE_FINAL: |
1471 | case OMP_CLAUSE_MERGEABLE: | |
acf0174b | 1472 | case OMP_CLAUSE_PROC_BIND: |
74bf76ed | 1473 | case OMP_CLAUSE_SAFELEN: |
d9a6bd32 | 1474 | case OMP_CLAUSE_SIMDLEN: |
acf0174b JJ |
1475 | case OMP_CLAUSE_ALIGNED: |
1476 | case OMP_CLAUSE_DEPEND: | |
1477 | case OMP_CLAUSE__LOOPTEMP_: | |
1478 | case OMP_CLAUSE_TO: | |
1479 | case OMP_CLAUSE_FROM: | |
d9a6bd32 JJ |
1480 | case OMP_CLAUSE_PRIORITY: |
1481 | case OMP_CLAUSE_GRAINSIZE: | |
1482 | case OMP_CLAUSE_NUM_TASKS: | |
1483 | case OMP_CLAUSE_THREADS: | |
1484 | case OMP_CLAUSE_SIMD: | |
1485 | case OMP_CLAUSE_NOGROUP: | |
1486 | case OMP_CLAUSE_DEFAULTMAP: | |
1487 | case OMP_CLAUSE_USE_DEVICE_PTR: | |
41dbbb37 TS |
1488 | case OMP_CLAUSE_ASYNC: |
1489 | case OMP_CLAUSE_WAIT: | |
1490 | case OMP_CLAUSE_NUM_GANGS: | |
1491 | case OMP_CLAUSE_NUM_WORKERS: | |
1492 | case OMP_CLAUSE_VECTOR_LENGTH: | |
1493 | case OMP_CLAUSE_GANG: | |
1494 | case OMP_CLAUSE_WORKER: | |
1495 | case OMP_CLAUSE_VECTOR: | |
c5a64cfe NS |
1496 | case OMP_CLAUSE_INDEPENDENT: |
1497 | case OMP_CLAUSE_AUTO: | |
1498 | case OMP_CLAUSE_SEQ: | |
02889d23 | 1499 | case OMP_CLAUSE_TILE: |
b2b40051 | 1500 | case OMP_CLAUSE__GRIDDIM_: |
6c7509bc | 1501 | case OMP_CLAUSE__SIMT_: |
41dbbb37 TS |
1502 | break; |
1503 | ||
41dbbb37 | 1504 | case OMP_CLAUSE__CACHE_: |
953ff289 DN |
1505 | default: |
1506 | gcc_unreachable (); | |
1507 | } | |
1508 | } | |
1509 | ||
41dbbb37 TS |
1510 | gcc_checking_assert (!scan_array_reductions |
1511 | || !is_gimple_omp_oacc (ctx->stmt)); | |
953ff289 | 1512 | if (scan_array_reductions) |
6b37bdaf PP |
1513 | { |
1514 | for (c = clauses; c; c = OMP_CLAUSE_CHAIN (c)) | |
1515 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_REDUCTION | |
1516 | && OMP_CLAUSE_REDUCTION_PLACEHOLDER (c)) | |
1517 | { | |
1518 | scan_omp (&OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c), ctx); | |
1519 | scan_omp (&OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c), ctx); | |
1520 | } | |
1521 | else if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LASTPRIVATE | |
1522 | && OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c)) | |
1523 | scan_omp (&OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c), ctx); | |
1524 | else if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LINEAR | |
1525 | && OMP_CLAUSE_LINEAR_GIMPLE_SEQ (c)) | |
1526 | scan_omp (&OMP_CLAUSE_LINEAR_GIMPLE_SEQ (c), ctx); | |
1527 | } | |
953ff289 DN |
1528 | } |
1529 | ||
5e9d6aa4 | 1530 | /* Create a new name for omp child function. Returns an identifier. */ |
953ff289 | 1531 | |
953ff289 | 1532 | static tree |
5e9d6aa4 | 1533 | create_omp_child_function_name (bool task_copy) |
953ff289 | 1534 | { |
9a771876 JJ |
1535 | return clone_function_name (current_function_decl, |
1536 | task_copy ? "_omp_cpyfn" : "_omp_fn"); | |
1537 | } | |
1538 | ||
9669b00b AM |
1539 | /* Return true if CTX may belong to offloaded code: either if current function |
1540 | is offloaded, or any enclosing context corresponds to a target region. */ | |
1541 | ||
1542 | static bool | |
1543 | omp_maybe_offloaded_ctx (omp_context *ctx) | |
1544 | { | |
1545 | if (cgraph_node::get (current_function_decl)->offloadable) | |
1546 | return true; | |
1547 | for (; ctx; ctx = ctx->outer) | |
1548 | if (is_gimple_omp_offloaded (ctx->stmt)) | |
1549 | return true; | |
1550 | return false; | |
1551 | } | |
1552 | ||
953ff289 DN |
1553 | /* Build a decl for the omp child function. It'll not contain a body |
1554 | yet, just the bare decl. */ | |
1555 | ||
1556 | static void | |
a68ab351 | 1557 | create_omp_child_function (omp_context *ctx, bool task_copy) |
953ff289 DN |
1558 | { |
1559 | tree decl, type, name, t; | |
1560 | ||
5e9d6aa4 | 1561 | name = create_omp_child_function_name (task_copy); |
a68ab351 JJ |
1562 | if (task_copy) |
1563 | type = build_function_type_list (void_type_node, ptr_type_node, | |
1564 | ptr_type_node, NULL_TREE); | |
1565 | else | |
1566 | type = build_function_type_list (void_type_node, ptr_type_node, NULL_TREE); | |
953ff289 | 1567 | |
9a771876 | 1568 | decl = build_decl (gimple_location (ctx->stmt), FUNCTION_DECL, name, type); |
953ff289 | 1569 | |
41dbbb37 TS |
1570 | gcc_checking_assert (!is_gimple_omp_oacc (ctx->stmt) |
1571 | || !task_copy); | |
a68ab351 JJ |
1572 | if (!task_copy) |
1573 | ctx->cb.dst_fn = decl; | |
1574 | else | |
726a989a | 1575 | gimple_omp_task_set_copy_fn (ctx->stmt, decl); |
953ff289 DN |
1576 | |
1577 | TREE_STATIC (decl) = 1; | |
1578 | TREE_USED (decl) = 1; | |
1579 | DECL_ARTIFICIAL (decl) = 1; | |
1580 | DECL_IGNORED_P (decl) = 0; | |
1581 | TREE_PUBLIC (decl) = 0; | |
1582 | DECL_UNINLINABLE (decl) = 1; | |
1583 | DECL_EXTERNAL (decl) = 0; | |
1584 | DECL_CONTEXT (decl) = NULL_TREE; | |
50674e96 | 1585 | DECL_INITIAL (decl) = make_node (BLOCK); |
01771d43 | 1586 | BLOCK_SUPERCONTEXT (DECL_INITIAL (decl)) = decl; |
5c38262d | 1587 | DECL_ATTRIBUTES (decl) = DECL_ATTRIBUTES (current_function_decl); |
f1542d9a JJ |
1588 | /* Remove omp declare simd attribute from the new attributes. */ |
1589 | if (tree a = lookup_attribute ("omp declare simd", DECL_ATTRIBUTES (decl))) | |
1590 | { | |
1591 | while (tree a2 = lookup_attribute ("omp declare simd", TREE_CHAIN (a))) | |
1592 | a = a2; | |
1593 | a = TREE_CHAIN (a); | |
1594 | for (tree *p = &DECL_ATTRIBUTES (decl); *p != a;) | |
1595 | if (is_attribute_p ("omp declare simd", get_attribute_name (*p))) | |
1596 | *p = TREE_CHAIN (*p); | |
1597 | else | |
1598 | { | |
1599 | tree chain = TREE_CHAIN (*p); | |
1600 | *p = copy_node (*p); | |
1601 | p = &TREE_CHAIN (*p); | |
1602 | *p = chain; | |
1603 | } | |
1604 | } | |
5c38262d JJ |
1605 | DECL_FUNCTION_SPECIFIC_OPTIMIZATION (decl) |
1606 | = DECL_FUNCTION_SPECIFIC_OPTIMIZATION (current_function_decl); | |
1607 | DECL_FUNCTION_SPECIFIC_TARGET (decl) | |
1608 | = DECL_FUNCTION_SPECIFIC_TARGET (current_function_decl); | |
1609 | DECL_FUNCTION_VERSIONED (decl) | |
1610 | = DECL_FUNCTION_VERSIONED (current_function_decl); | |
1611 | ||
9669b00b | 1612 | if (omp_maybe_offloaded_ctx (ctx)) |
acf0174b | 1613 | { |
9669b00b AM |
1614 | cgraph_node::get_create (decl)->offloadable = 1; |
1615 | if (ENABLE_OFFLOADING) | |
1616 | g->have_offload = true; | |
acf0174b | 1617 | } |
953ff289 | 1618 | |
d7823208 BS |
1619 | if (cgraph_node::get_create (decl)->offloadable |
1620 | && !lookup_attribute ("omp declare target", | |
1621 | DECL_ATTRIBUTES (current_function_decl))) | |
9669b00b AM |
1622 | { |
1623 | const char *target_attr = (is_gimple_omp_offloaded (ctx->stmt) | |
1624 | ? "omp target entrypoint" | |
1625 | : "omp declare target"); | |
1626 | DECL_ATTRIBUTES (decl) | |
1627 | = tree_cons (get_identifier (target_attr), | |
1628 | NULL_TREE, DECL_ATTRIBUTES (decl)); | |
1629 | } | |
d7823208 | 1630 | |
c2255bc4 AH |
1631 | t = build_decl (DECL_SOURCE_LOCATION (decl), |
1632 | RESULT_DECL, NULL_TREE, void_type_node); | |
953ff289 DN |
1633 | DECL_ARTIFICIAL (t) = 1; |
1634 | DECL_IGNORED_P (t) = 1; | |
07485407 | 1635 | DECL_CONTEXT (t) = decl; |
953ff289 DN |
1636 | DECL_RESULT (decl) = t; |
1637 | ||
9a771876 JJ |
1638 | tree data_name = get_identifier (".omp_data_i"); |
1639 | t = build_decl (DECL_SOURCE_LOCATION (decl), PARM_DECL, data_name, | |
1640 | ptr_type_node); | |
953ff289 | 1641 | DECL_ARTIFICIAL (t) = 1; |
cd3f04c8 | 1642 | DECL_NAMELESS (t) = 1; |
953ff289 | 1643 | DECL_ARG_TYPE (t) = ptr_type_node; |
50674e96 | 1644 | DECL_CONTEXT (t) = current_function_decl; |
953ff289 | 1645 | TREE_USED (t) = 1; |
d9a6bd32 | 1646 | TREE_READONLY (t) = 1; |
953ff289 | 1647 | DECL_ARGUMENTS (decl) = t; |
a68ab351 JJ |
1648 | if (!task_copy) |
1649 | ctx->receiver_decl = t; | |
1650 | else | |
1651 | { | |
c2255bc4 AH |
1652 | t = build_decl (DECL_SOURCE_LOCATION (decl), |
1653 | PARM_DECL, get_identifier (".omp_data_o"), | |
a68ab351 JJ |
1654 | ptr_type_node); |
1655 | DECL_ARTIFICIAL (t) = 1; | |
cd3f04c8 | 1656 | DECL_NAMELESS (t) = 1; |
a68ab351 JJ |
1657 | DECL_ARG_TYPE (t) = ptr_type_node; |
1658 | DECL_CONTEXT (t) = current_function_decl; | |
1659 | TREE_USED (t) = 1; | |
628c189e | 1660 | TREE_ADDRESSABLE (t) = 1; |
910ad8de | 1661 | DECL_CHAIN (t) = DECL_ARGUMENTS (decl); |
a68ab351 JJ |
1662 | DECL_ARGUMENTS (decl) = t; |
1663 | } | |
953ff289 | 1664 | |
b8698a0f | 1665 | /* Allocate memory for the function structure. The call to |
50674e96 | 1666 | allocate_struct_function clobbers CFUN, so we need to restore |
953ff289 | 1667 | it afterward. */ |
db2960f4 | 1668 | push_struct_function (decl); |
726a989a | 1669 | cfun->function_end_locus = gimple_location (ctx->stmt); |
381cdae4 | 1670 | init_tree_ssa (cfun); |
db2960f4 | 1671 | pop_cfun (); |
953ff289 DN |
1672 | } |
1673 | ||
acf0174b JJ |
1674 | /* Callback for walk_gimple_seq. Check if combined parallel |
1675 | contains gimple_omp_for_combined_into_p OMP_FOR. */ | |
1676 | ||
629b3d75 MJ |
1677 | tree |
1678 | omp_find_combined_for (gimple_stmt_iterator *gsi_p, | |
1679 | bool *handled_ops_p, | |
1680 | struct walk_stmt_info *wi) | |
acf0174b | 1681 | { |
355fe088 | 1682 | gimple *stmt = gsi_stmt (*gsi_p); |
acf0174b JJ |
1683 | |
1684 | *handled_ops_p = true; | |
1685 | switch (gimple_code (stmt)) | |
1686 | { | |
1687 | WALK_SUBSTMTS; | |
1688 | ||
1689 | case GIMPLE_OMP_FOR: | |
1690 | if (gimple_omp_for_combined_into_p (stmt) | |
d9a6bd32 JJ |
1691 | && gimple_omp_for_kind (stmt) |
1692 | == *(const enum gf_mask *) (wi->info)) | |
acf0174b JJ |
1693 | { |
1694 | wi->info = stmt; | |
1695 | return integer_zero_node; | |
1696 | } | |
1697 | break; | |
1698 | default: | |
1699 | break; | |
1700 | } | |
1701 | return NULL; | |
1702 | } | |
1703 | ||
d9a6bd32 JJ |
1704 | /* Add _LOOPTEMP_ clauses on OpenMP parallel or task. */ |
1705 | ||
1706 | static void | |
1707 | add_taskreg_looptemp_clauses (enum gf_mask msk, gimple *stmt, | |
1708 | omp_context *outer_ctx) | |
1709 | { | |
1710 | struct walk_stmt_info wi; | |
1711 | ||
1712 | memset (&wi, 0, sizeof (wi)); | |
1713 | wi.val_only = true; | |
1714 | wi.info = (void *) &msk; | |
629b3d75 | 1715 | walk_gimple_seq (gimple_omp_body (stmt), omp_find_combined_for, NULL, &wi); |
d9a6bd32 JJ |
1716 | if (wi.info != (void *) &msk) |
1717 | { | |
1718 | gomp_for *for_stmt = as_a <gomp_for *> ((gimple *) wi.info); | |
1719 | struct omp_for_data fd; | |
629b3d75 | 1720 | omp_extract_for_data (for_stmt, &fd, NULL); |
d9a6bd32 JJ |
1721 | /* We need two temporaries with fd.loop.v type (istart/iend) |
1722 | and then (fd.collapse - 1) temporaries with the same | |
1723 | type for count2 ... countN-1 vars if not constant. */ | |
1724 | size_t count = 2, i; | |
1725 | tree type = fd.iter_type; | |
1726 | if (fd.collapse > 1 | |
1727 | && TREE_CODE (fd.loop.n2) != INTEGER_CST) | |
1728 | { | |
1729 | count += fd.collapse - 1; | |
e01d41e5 | 1730 | /* If there are lastprivate clauses on the inner |
d9a6bd32 JJ |
1731 | GIMPLE_OMP_FOR, add one more temporaries for the total number |
1732 | of iterations (product of count1 ... countN-1). */ | |
629b3d75 | 1733 | if (omp_find_clause (gimple_omp_for_clauses (for_stmt), |
e01d41e5 JJ |
1734 | OMP_CLAUSE_LASTPRIVATE)) |
1735 | count++; | |
1736 | else if (msk == GF_OMP_FOR_KIND_FOR | |
629b3d75 | 1737 | && omp_find_clause (gimple_omp_parallel_clauses (stmt), |
e01d41e5 | 1738 | OMP_CLAUSE_LASTPRIVATE)) |
d9a6bd32 JJ |
1739 | count++; |
1740 | } | |
1741 | for (i = 0; i < count; i++) | |
1742 | { | |
1743 | tree temp = create_tmp_var (type); | |
1744 | tree c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE__LOOPTEMP_); | |
1745 | insert_decl_map (&outer_ctx->cb, temp, temp); | |
1746 | OMP_CLAUSE_DECL (c) = temp; | |
1747 | OMP_CLAUSE_CHAIN (c) = gimple_omp_taskreg_clauses (stmt); | |
1748 | gimple_omp_taskreg_set_clauses (stmt, c); | |
1749 | } | |
1750 | } | |
1751 | } | |
1752 | ||
953ff289 DN |
1753 | /* Scan an OpenMP parallel directive. */ |
1754 | ||
1755 | static void | |
726a989a | 1756 | scan_omp_parallel (gimple_stmt_iterator *gsi, omp_context *outer_ctx) |
953ff289 DN |
1757 | { |
1758 | omp_context *ctx; | |
1759 | tree name; | |
538dd0b7 | 1760 | gomp_parallel *stmt = as_a <gomp_parallel *> (gsi_stmt (*gsi)); |
953ff289 DN |
1761 | |
1762 | /* Ignore parallel directives with empty bodies, unless there | |
1763 | are copyin clauses. */ | |
1764 | if (optimize > 0 | |
726a989a | 1765 | && empty_body_p (gimple_omp_body (stmt)) |
629b3d75 | 1766 | && omp_find_clause (gimple_omp_parallel_clauses (stmt), |
726a989a | 1767 | OMP_CLAUSE_COPYIN) == NULL) |
953ff289 | 1768 | { |
726a989a | 1769 | gsi_replace (gsi, gimple_build_nop (), false); |
953ff289 DN |
1770 | return; |
1771 | } | |
1772 | ||
acf0174b | 1773 | if (gimple_omp_parallel_combined_p (stmt)) |
d9a6bd32 | 1774 | add_taskreg_looptemp_clauses (GF_OMP_FOR_KIND_FOR, stmt, outer_ctx); |
acf0174b | 1775 | |
726a989a | 1776 | ctx = new_omp_context (stmt, outer_ctx); |
5771c391 | 1777 | taskreg_contexts.safe_push (ctx); |
a68ab351 | 1778 | if (taskreg_nesting_level > 1) |
50674e96 | 1779 | ctx->is_nested = true; |
953ff289 | 1780 | ctx->field_map = splay_tree_new (splay_tree_compare_pointers, 0, 0); |
953ff289 | 1781 | ctx->record_type = lang_hooks.types.make_type (RECORD_TYPE); |
953ff289 | 1782 | name = create_tmp_var_name (".omp_data_s"); |
c2255bc4 AH |
1783 | name = build_decl (gimple_location (stmt), |
1784 | TYPE_DECL, name, ctx->record_type); | |
cd3f04c8 JJ |
1785 | DECL_ARTIFICIAL (name) = 1; |
1786 | DECL_NAMELESS (name) = 1; | |
953ff289 | 1787 | TYPE_NAME (ctx->record_type) = name; |
f7484978 | 1788 | TYPE_ARTIFICIAL (ctx->record_type) = 1; |
b2b40051 MJ |
1789 | if (!gimple_omp_parallel_grid_phony (stmt)) |
1790 | { | |
1791 | create_omp_child_function (ctx, false); | |
1792 | gimple_omp_parallel_set_child_fn (stmt, ctx->cb.dst_fn); | |
1793 | } | |
953ff289 | 1794 | |
726a989a | 1795 | scan_sharing_clauses (gimple_omp_parallel_clauses (stmt), ctx); |
26127932 | 1796 | scan_omp (gimple_omp_body_ptr (stmt), ctx); |
953ff289 DN |
1797 | |
1798 | if (TYPE_FIELDS (ctx->record_type) == NULL) | |
1799 | ctx->record_type = ctx->receiver_decl = NULL; | |
953ff289 DN |
1800 | } |
1801 | ||
a68ab351 JJ |
1802 | /* Scan an OpenMP task directive. */ |
1803 | ||
1804 | static void | |
726a989a | 1805 | scan_omp_task (gimple_stmt_iterator *gsi, omp_context *outer_ctx) |
a68ab351 JJ |
1806 | { |
1807 | omp_context *ctx; | |
726a989a | 1808 | tree name, t; |
538dd0b7 | 1809 | gomp_task *stmt = as_a <gomp_task *> (gsi_stmt (*gsi)); |
a68ab351 | 1810 | |
fbc698e0 JJ |
1811 | /* Ignore task directives with empty bodies, unless they have depend |
1812 | clause. */ | |
a68ab351 | 1813 | if (optimize > 0 |
fbc698e0 JJ |
1814 | && empty_body_p (gimple_omp_body (stmt)) |
1815 | && !omp_find_clause (gimple_omp_task_clauses (stmt), OMP_CLAUSE_DEPEND)) | |
a68ab351 | 1816 | { |
726a989a | 1817 | gsi_replace (gsi, gimple_build_nop (), false); |
a68ab351 JJ |
1818 | return; |
1819 | } | |
1820 | ||
d9a6bd32 JJ |
1821 | if (gimple_omp_task_taskloop_p (stmt)) |
1822 | add_taskreg_looptemp_clauses (GF_OMP_FOR_KIND_TASKLOOP, stmt, outer_ctx); | |
1823 | ||
726a989a | 1824 | ctx = new_omp_context (stmt, outer_ctx); |
5771c391 | 1825 | taskreg_contexts.safe_push (ctx); |
a68ab351 JJ |
1826 | if (taskreg_nesting_level > 1) |
1827 | ctx->is_nested = true; | |
1828 | ctx->field_map = splay_tree_new (splay_tree_compare_pointers, 0, 0); | |
a68ab351 JJ |
1829 | ctx->record_type = lang_hooks.types.make_type (RECORD_TYPE); |
1830 | name = create_tmp_var_name (".omp_data_s"); | |
c2255bc4 AH |
1831 | name = build_decl (gimple_location (stmt), |
1832 | TYPE_DECL, name, ctx->record_type); | |
cd3f04c8 JJ |
1833 | DECL_ARTIFICIAL (name) = 1; |
1834 | DECL_NAMELESS (name) = 1; | |
a68ab351 | 1835 | TYPE_NAME (ctx->record_type) = name; |
f7484978 | 1836 | TYPE_ARTIFICIAL (ctx->record_type) = 1; |
a68ab351 | 1837 | create_omp_child_function (ctx, false); |
726a989a | 1838 | gimple_omp_task_set_child_fn (stmt, ctx->cb.dst_fn); |
a68ab351 | 1839 | |
726a989a | 1840 | scan_sharing_clauses (gimple_omp_task_clauses (stmt), ctx); |
a68ab351 JJ |
1841 | |
1842 | if (ctx->srecord_type) | |
1843 | { | |
1844 | name = create_tmp_var_name (".omp_data_a"); | |
c2255bc4 AH |
1845 | name = build_decl (gimple_location (stmt), |
1846 | TYPE_DECL, name, ctx->srecord_type); | |
cd3f04c8 JJ |
1847 | DECL_ARTIFICIAL (name) = 1; |
1848 | DECL_NAMELESS (name) = 1; | |
a68ab351 | 1849 | TYPE_NAME (ctx->srecord_type) = name; |
f7484978 | 1850 | TYPE_ARTIFICIAL (ctx->srecord_type) = 1; |
a68ab351 JJ |
1851 | create_omp_child_function (ctx, true); |
1852 | } | |
1853 | ||
26127932 | 1854 | scan_omp (gimple_omp_body_ptr (stmt), ctx); |
a68ab351 JJ |
1855 | |
1856 | if (TYPE_FIELDS (ctx->record_type) == NULL) | |
1857 | { | |
1858 | ctx->record_type = ctx->receiver_decl = NULL; | |
726a989a RB |
1859 | t = build_int_cst (long_integer_type_node, 0); |
1860 | gimple_omp_task_set_arg_size (stmt, t); | |
1861 | t = build_int_cst (long_integer_type_node, 1); | |
1862 | gimple_omp_task_set_arg_align (stmt, t); | |
a68ab351 | 1863 | } |
5771c391 JJ |
1864 | } |
1865 | ||
655e5265 JJ |
1866 | /* Helper function for finish_taskreg_scan, called through walk_tree. |
1867 | If maybe_lookup_decl_in_outer_context returns non-NULL for some | |
1868 | tree, replace it in the expression. */ | |
1869 | ||
1870 | static tree | |
1871 | finish_taskreg_remap (tree *tp, int *walk_subtrees, void *data) | |
1872 | { | |
1873 | if (VAR_P (*tp)) | |
1874 | { | |
1875 | omp_context *ctx = (omp_context *) data; | |
1876 | tree t = maybe_lookup_decl_in_outer_ctx (*tp, ctx); | |
1877 | if (t != *tp) | |
1878 | { | |
1879 | if (DECL_HAS_VALUE_EXPR_P (t)) | |
1880 | t = unshare_expr (DECL_VALUE_EXPR (t)); | |
1881 | *tp = t; | |
1882 | } | |
1883 | *walk_subtrees = 0; | |
1884 | } | |
1885 | else if (IS_TYPE_OR_DECL_P (*tp)) | |
1886 | *walk_subtrees = 0; | |
1887 | return NULL_TREE; | |
1888 | } | |
5771c391 JJ |
1889 | |
1890 | /* If any decls have been made addressable during scan_omp, | |
1891 | adjust their fields if needed, and layout record types | |
1892 | of parallel/task constructs. */ | |
1893 | ||
1894 | static void | |
1895 | finish_taskreg_scan (omp_context *ctx) | |
1896 | { | |
1897 | if (ctx->record_type == NULL_TREE) | |
1898 | return; | |
1899 | ||
1900 | /* If any task_shared_vars were needed, verify all | |
1901 | OMP_CLAUSE_SHARED clauses on GIMPLE_OMP_{PARALLEL,TASK} | |
1902 | statements if use_pointer_for_field hasn't changed | |
1903 | because of that. If it did, update field types now. */ | |
1904 | if (task_shared_vars) | |
1905 | { | |
1906 | tree c; | |
1907 | ||
1908 | for (c = gimple_omp_taskreg_clauses (ctx->stmt); | |
1909 | c; c = OMP_CLAUSE_CHAIN (c)) | |
d9a6bd32 JJ |
1910 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_SHARED |
1911 | && !OMP_CLAUSE_SHARED_FIRSTPRIVATE (c)) | |
5771c391 JJ |
1912 | { |
1913 | tree decl = OMP_CLAUSE_DECL (c); | |
1914 | ||
1915 | /* Global variables don't need to be copied, | |
1916 | the receiver side will use them directly. */ | |
1917 | if (is_global_var (maybe_lookup_decl_in_outer_ctx (decl, ctx))) | |
1918 | continue; | |
1919 | if (!bitmap_bit_p (task_shared_vars, DECL_UID (decl)) | |
1920 | || !use_pointer_for_field (decl, ctx)) | |
1921 | continue; | |
1922 | tree field = lookup_field (decl, ctx); | |
1923 | if (TREE_CODE (TREE_TYPE (field)) == POINTER_TYPE | |
1924 | && TREE_TYPE (TREE_TYPE (field)) == TREE_TYPE (decl)) | |
1925 | continue; | |
1926 | TREE_TYPE (field) = build_pointer_type (TREE_TYPE (decl)); | |
1927 | TREE_THIS_VOLATILE (field) = 0; | |
1928 | DECL_USER_ALIGN (field) = 0; | |
fe37c7af | 1929 | SET_DECL_ALIGN (field, TYPE_ALIGN (TREE_TYPE (field))); |
5771c391 | 1930 | if (TYPE_ALIGN (ctx->record_type) < DECL_ALIGN (field)) |
fe37c7af | 1931 | SET_TYPE_ALIGN (ctx->record_type, DECL_ALIGN (field)); |
5771c391 JJ |
1932 | if (ctx->srecord_type) |
1933 | { | |
1934 | tree sfield = lookup_sfield (decl, ctx); | |
1935 | TREE_TYPE (sfield) = TREE_TYPE (field); | |
1936 | TREE_THIS_VOLATILE (sfield) = 0; | |
1937 | DECL_USER_ALIGN (sfield) = 0; | |
fe37c7af | 1938 | SET_DECL_ALIGN (sfield, DECL_ALIGN (field)); |
5771c391 | 1939 | if (TYPE_ALIGN (ctx->srecord_type) < DECL_ALIGN (sfield)) |
fe37c7af | 1940 | SET_TYPE_ALIGN (ctx->srecord_type, DECL_ALIGN (sfield)); |
5771c391 JJ |
1941 | } |
1942 | } | |
1943 | } | |
1944 | ||
1945 | if (gimple_code (ctx->stmt) == GIMPLE_OMP_PARALLEL) | |
1946 | { | |
1947 | layout_type (ctx->record_type); | |
1948 | fixup_child_record_type (ctx); | |
1949 | } | |
a68ab351 JJ |
1950 | else |
1951 | { | |
5771c391 | 1952 | location_t loc = gimple_location (ctx->stmt); |
a68ab351 JJ |
1953 | tree *p, vla_fields = NULL_TREE, *q = &vla_fields; |
1954 | /* Move VLA fields to the end. */ | |
1955 | p = &TYPE_FIELDS (ctx->record_type); | |
1956 | while (*p) | |
1957 | if (!TYPE_SIZE_UNIT (TREE_TYPE (*p)) | |
1958 | || ! TREE_CONSTANT (TYPE_SIZE_UNIT (TREE_TYPE (*p)))) | |
1959 | { | |
1960 | *q = *p; | |
1961 | *p = TREE_CHAIN (*p); | |
1962 | TREE_CHAIN (*q) = NULL_TREE; | |
1963 | q = &TREE_CHAIN (*q); | |
1964 | } | |
1965 | else | |
910ad8de | 1966 | p = &DECL_CHAIN (*p); |
a68ab351 | 1967 | *p = vla_fields; |
d9a6bd32 JJ |
1968 | if (gimple_omp_task_taskloop_p (ctx->stmt)) |
1969 | { | |
1970 | /* Move fields corresponding to first and second _looptemp_ | |
1971 | clause first. There are filled by GOMP_taskloop | |
1972 | and thus need to be in specific positions. */ | |
1973 | tree c1 = gimple_omp_task_clauses (ctx->stmt); | |
629b3d75 MJ |
1974 | c1 = omp_find_clause (c1, OMP_CLAUSE__LOOPTEMP_); |
1975 | tree c2 = omp_find_clause (OMP_CLAUSE_CHAIN (c1), | |
d9a6bd32 JJ |
1976 | OMP_CLAUSE__LOOPTEMP_); |
1977 | tree f1 = lookup_field (OMP_CLAUSE_DECL (c1), ctx); | |
1978 | tree f2 = lookup_field (OMP_CLAUSE_DECL (c2), ctx); | |
1979 | p = &TYPE_FIELDS (ctx->record_type); | |
1980 | while (*p) | |
1981 | if (*p == f1 || *p == f2) | |
1982 | *p = DECL_CHAIN (*p); | |
1983 | else | |
1984 | p = &DECL_CHAIN (*p); | |
1985 | DECL_CHAIN (f1) = f2; | |
1986 | DECL_CHAIN (f2) = TYPE_FIELDS (ctx->record_type); | |
1987 | TYPE_FIELDS (ctx->record_type) = f1; | |
1988 | if (ctx->srecord_type) | |
1989 | { | |
1990 | f1 = lookup_sfield (OMP_CLAUSE_DECL (c1), ctx); | |
1991 | f2 = lookup_sfield (OMP_CLAUSE_DECL (c2), ctx); | |
1992 | p = &TYPE_FIELDS (ctx->srecord_type); | |
1993 | while (*p) | |
1994 | if (*p == f1 || *p == f2) | |
1995 | *p = DECL_CHAIN (*p); | |
1996 | else | |
1997 | p = &DECL_CHAIN (*p); | |
1998 | DECL_CHAIN (f1) = f2; | |
1999 | DECL_CHAIN (f2) = TYPE_FIELDS (ctx->srecord_type); | |
2000 | TYPE_FIELDS (ctx->srecord_type) = f1; | |
2001 | } | |
2002 | } | |
a68ab351 JJ |
2003 | layout_type (ctx->record_type); |
2004 | fixup_child_record_type (ctx); | |
2005 | if (ctx->srecord_type) | |
2006 | layout_type (ctx->srecord_type); | |
5771c391 JJ |
2007 | tree t = fold_convert_loc (loc, long_integer_type_node, |
2008 | TYPE_SIZE_UNIT (ctx->record_type)); | |
655e5265 JJ |
2009 | if (TREE_CODE (t) != INTEGER_CST) |
2010 | { | |
2011 | t = unshare_expr (t); | |
2012 | walk_tree (&t, finish_taskreg_remap, ctx, NULL); | |
2013 | } | |
5771c391 | 2014 | gimple_omp_task_set_arg_size (ctx->stmt, t); |
726a989a | 2015 | t = build_int_cst (long_integer_type_node, |
a68ab351 | 2016 | TYPE_ALIGN_UNIT (ctx->record_type)); |
5771c391 | 2017 | gimple_omp_task_set_arg_align (ctx->stmt, t); |
a68ab351 JJ |
2018 | } |
2019 | } | |
2020 | ||
e4834818 | 2021 | /* Find the enclosing offload context. */ |
953ff289 | 2022 | |
41dbbb37 TS |
2023 | static omp_context * |
2024 | enclosing_target_ctx (omp_context *ctx) | |
2025 | { | |
e4834818 NS |
2026 | for (; ctx; ctx = ctx->outer) |
2027 | if (gimple_code (ctx->stmt) == GIMPLE_OMP_TARGET) | |
2028 | break; | |
2029 | ||
41dbbb37 TS |
2030 | return ctx; |
2031 | } | |
2032 | ||
e4834818 NS |
2033 | /* Return true if ctx is part of an oacc kernels region. */ |
2034 | ||
41dbbb37 | 2035 | static bool |
e4834818 | 2036 | ctx_in_oacc_kernels_region (omp_context *ctx) |
41dbbb37 | 2037 | { |
e4834818 NS |
2038 | for (;ctx != NULL; ctx = ctx->outer) |
2039 | { | |
2040 | gimple *stmt = ctx->stmt; | |
2041 | if (gimple_code (stmt) == GIMPLE_OMP_TARGET | |
2042 | && gimple_omp_target_kind (stmt) == GF_OMP_TARGET_KIND_OACC_KERNELS) | |
2043 | return true; | |
2044 | } | |
2045 | ||
2046 | return false; | |
2047 | } | |
2048 | ||
2049 | /* Check the parallelism clauses inside a kernels regions. | |
2050 | Until kernels handling moves to use the same loop indirection | |
2051 | scheme as parallel, we need to do this checking early. */ | |
2052 | ||
2053 | static unsigned | |
2054 | check_oacc_kernel_gwv (gomp_for *stmt, omp_context *ctx) | |
2055 | { | |
2056 | bool checking = true; | |
2057 | unsigned outer_mask = 0; | |
2058 | unsigned this_mask = 0; | |
2059 | bool has_seq = false, has_auto = false; | |
2060 | ||
2061 | if (ctx->outer) | |
2062 | outer_mask = check_oacc_kernel_gwv (NULL, ctx->outer); | |
2063 | if (!stmt) | |
2064 | { | |
2065 | checking = false; | |
2066 | if (gimple_code (ctx->stmt) != GIMPLE_OMP_FOR) | |
2067 | return outer_mask; | |
2068 | stmt = as_a <gomp_for *> (ctx->stmt); | |
2069 | } | |
2070 | ||
2071 | for (tree c = gimple_omp_for_clauses (stmt); c; c = OMP_CLAUSE_CHAIN (c)) | |
2072 | { | |
2073 | switch (OMP_CLAUSE_CODE (c)) | |
2074 | { | |
2075 | case OMP_CLAUSE_GANG: | |
2076 | this_mask |= GOMP_DIM_MASK (GOMP_DIM_GANG); | |
2077 | break; | |
2078 | case OMP_CLAUSE_WORKER: | |
2079 | this_mask |= GOMP_DIM_MASK (GOMP_DIM_WORKER); | |
2080 | break; | |
2081 | case OMP_CLAUSE_VECTOR: | |
2082 | this_mask |= GOMP_DIM_MASK (GOMP_DIM_VECTOR); | |
2083 | break; | |
2084 | case OMP_CLAUSE_SEQ: | |
2085 | has_seq = true; | |
2086 | break; | |
2087 | case OMP_CLAUSE_AUTO: | |
2088 | has_auto = true; | |
2089 | break; | |
2090 | default: | |
2091 | break; | |
2092 | } | |
2093 | } | |
2094 | ||
2095 | if (checking) | |
2096 | { | |
2097 | if (has_seq && (this_mask || has_auto)) | |
2098 | error_at (gimple_location (stmt), "%<seq%> overrides other" | |
2099 | " OpenACC loop specifiers"); | |
2100 | else if (has_auto && this_mask) | |
2101 | error_at (gimple_location (stmt), "%<auto%> conflicts with other" | |
2102 | " OpenACC loop specifiers"); | |
2103 | ||
2104 | if (this_mask & outer_mask) | |
2105 | error_at (gimple_location (stmt), "inner loop uses same" | |
2106 | " OpenACC parallelism as containing loop"); | |
2107 | } | |
2108 | ||
2109 | return outer_mask | this_mask; | |
41dbbb37 TS |
2110 | } |
2111 | ||
2112 | /* Scan a GIMPLE_OMP_FOR. */ | |
953ff289 | 2113 | |
6e6cf7b0 | 2114 | static omp_context * |
538dd0b7 | 2115 | scan_omp_for (gomp_for *stmt, omp_context *outer_ctx) |
953ff289 | 2116 | { |
50674e96 | 2117 | omp_context *ctx; |
726a989a | 2118 | size_t i; |
41dbbb37 TS |
2119 | tree clauses = gimple_omp_for_clauses (stmt); |
2120 | ||
50674e96 | 2121 | ctx = new_omp_context (stmt, outer_ctx); |
953ff289 | 2122 | |
41dbbb37 TS |
2123 | if (is_gimple_omp_oacc (stmt)) |
2124 | { | |
e4834818 NS |
2125 | omp_context *tgt = enclosing_target_ctx (outer_ctx); |
2126 | ||
2127 | if (!tgt || is_oacc_parallel (tgt)) | |
2128 | for (tree c = clauses; c; c = OMP_CLAUSE_CHAIN (c)) | |
2129 | { | |
2130 | char const *check = NULL; | |
2131 | ||
2132 | switch (OMP_CLAUSE_CODE (c)) | |
2133 | { | |
2134 | case OMP_CLAUSE_GANG: | |
2135 | check = "gang"; | |
2136 | break; | |
2137 | ||
2138 | case OMP_CLAUSE_WORKER: | |
2139 | check = "worker"; | |
2140 | break; | |
2141 | ||
2142 | case OMP_CLAUSE_VECTOR: | |
2143 | check = "vector"; | |
2144 | break; | |
2145 | ||
2146 | default: | |
2147 | break; | |
2148 | } | |
2149 | ||
2150 | if (check && OMP_CLAUSE_OPERAND (c, 0)) | |
2151 | error_at (gimple_location (stmt), | |
2152 | "argument not permitted on %qs clause in" | |
2153 | " OpenACC %<parallel%>", check); | |
2154 | } | |
2155 | ||
2156 | if (tgt && is_oacc_kernels (tgt)) | |
2157 | { | |
2158 | /* Strip out reductions, as they are not handled yet. */ | |
2159 | tree *prev_ptr = &clauses; | |
2160 | ||
2161 | while (tree probe = *prev_ptr) | |
41dbbb37 | 2162 | { |
e4834818 NS |
2163 | tree *next_ptr = &OMP_CLAUSE_CHAIN (probe); |
2164 | ||
2165 | if (OMP_CLAUSE_CODE (probe) == OMP_CLAUSE_REDUCTION) | |
2166 | *prev_ptr = *next_ptr; | |
2167 | else | |
2168 | prev_ptr = next_ptr; | |
41dbbb37 | 2169 | } |
e4834818 NS |
2170 | |
2171 | gimple_omp_for_set_clauses (stmt, clauses); | |
2172 | check_oacc_kernel_gwv (stmt, ctx); | |
41dbbb37 TS |
2173 | } |
2174 | } | |
2175 | ||
2176 | scan_sharing_clauses (clauses, ctx); | |
953ff289 | 2177 | |
26127932 | 2178 | scan_omp (gimple_omp_for_pre_body_ptr (stmt), ctx); |
726a989a | 2179 | for (i = 0; i < gimple_omp_for_collapse (stmt); i++) |
a68ab351 | 2180 | { |
726a989a RB |
2181 | scan_omp_op (gimple_omp_for_index_ptr (stmt, i), ctx); |
2182 | scan_omp_op (gimple_omp_for_initial_ptr (stmt, i), ctx); | |
2183 | scan_omp_op (gimple_omp_for_final_ptr (stmt, i), ctx); | |
2184 | scan_omp_op (gimple_omp_for_incr_ptr (stmt, i), ctx); | |
a68ab351 | 2185 | } |
26127932 | 2186 | scan_omp (gimple_omp_body_ptr (stmt), ctx); |
6e6cf7b0 | 2187 | return ctx; |
953ff289 DN |
2188 | } |
2189 | ||
6c7509bc JJ |
2190 | /* Duplicate #pragma omp simd, one for SIMT, another one for SIMD. */ |
2191 | ||
2192 | static void | |
2193 | scan_omp_simd (gimple_stmt_iterator *gsi, gomp_for *stmt, | |
2194 | omp_context *outer_ctx) | |
2195 | { | |
2196 | gbind *bind = gimple_build_bind (NULL, NULL, NULL); | |
2197 | gsi_replace (gsi, bind, false); | |
2198 | gimple_seq seq = NULL; | |
2199 | gimple *g = gimple_build_call_internal (IFN_GOMP_USE_SIMT, 0); | |
2200 | tree cond = create_tmp_var_raw (integer_type_node); | |
2201 | DECL_CONTEXT (cond) = current_function_decl; | |
2202 | DECL_SEEN_IN_BIND_EXPR_P (cond) = 1; | |
2203 | gimple_bind_set_vars (bind, cond); | |
2204 | gimple_call_set_lhs (g, cond); | |
2205 | gimple_seq_add_stmt (&seq, g); | |
2206 | tree lab1 = create_artificial_label (UNKNOWN_LOCATION); | |
2207 | tree lab2 = create_artificial_label (UNKNOWN_LOCATION); | |
2208 | tree lab3 = create_artificial_label (UNKNOWN_LOCATION); | |
2209 | g = gimple_build_cond (NE_EXPR, cond, integer_zero_node, lab1, lab2); | |
2210 | gimple_seq_add_stmt (&seq, g); | |
2211 | g = gimple_build_label (lab1); | |
2212 | gimple_seq_add_stmt (&seq, g); | |
2213 | gimple_seq new_seq = copy_gimple_seq_and_replace_locals (stmt); | |
2214 | gomp_for *new_stmt = as_a <gomp_for *> (new_seq); | |
2215 | tree clause = build_omp_clause (gimple_location (stmt), OMP_CLAUSE__SIMT_); | |
2216 | OMP_CLAUSE_CHAIN (clause) = gimple_omp_for_clauses (new_stmt); | |
2217 | gimple_omp_for_set_clauses (new_stmt, clause); | |
2218 | gimple_seq_add_stmt (&seq, new_stmt); | |
2219 | g = gimple_build_goto (lab3); | |
2220 | gimple_seq_add_stmt (&seq, g); | |
2221 | g = gimple_build_label (lab2); | |
2222 | gimple_seq_add_stmt (&seq, g); | |
2223 | gimple_seq_add_stmt (&seq, stmt); | |
2224 | g = gimple_build_label (lab3); | |
2225 | gimple_seq_add_stmt (&seq, g); | |
2226 | gimple_bind_set_body (bind, seq); | |
2227 | update_stmt (bind); | |
2228 | scan_omp_for (new_stmt, outer_ctx); | |
6e6cf7b0 | 2229 | scan_omp_for (stmt, outer_ctx)->simt_stmt = new_stmt; |
6c7509bc JJ |
2230 | } |
2231 | ||
953ff289 DN |
2232 | /* Scan an OpenMP sections directive. */ |
2233 | ||
2234 | static void | |
538dd0b7 | 2235 | scan_omp_sections (gomp_sections *stmt, omp_context *outer_ctx) |
953ff289 | 2236 | { |
953ff289 DN |
2237 | omp_context *ctx; |
2238 | ||
2239 | ctx = new_omp_context (stmt, outer_ctx); | |
726a989a | 2240 | scan_sharing_clauses (gimple_omp_sections_clauses (stmt), ctx); |
26127932 | 2241 | scan_omp (gimple_omp_body_ptr (stmt), ctx); |
953ff289 DN |
2242 | } |
2243 | ||
2244 | /* Scan an OpenMP single directive. */ | |
2245 | ||
2246 | static void | |
538dd0b7 | 2247 | scan_omp_single (gomp_single *stmt, omp_context *outer_ctx) |
953ff289 | 2248 | { |
953ff289 DN |
2249 | omp_context *ctx; |
2250 | tree name; | |
2251 | ||
2252 | ctx = new_omp_context (stmt, outer_ctx); | |
2253 | ctx->field_map = splay_tree_new (splay_tree_compare_pointers, 0, 0); | |
2254 | ctx->record_type = lang_hooks.types.make_type (RECORD_TYPE); | |
2255 | name = create_tmp_var_name (".omp_copy_s"); | |
c2255bc4 AH |
2256 | name = build_decl (gimple_location (stmt), |
2257 | TYPE_DECL, name, ctx->record_type); | |
953ff289 DN |
2258 | TYPE_NAME (ctx->record_type) = name; |
2259 | ||
726a989a | 2260 | scan_sharing_clauses (gimple_omp_single_clauses (stmt), ctx); |
26127932 | 2261 | scan_omp (gimple_omp_body_ptr (stmt), ctx); |
953ff289 DN |
2262 | |
2263 | if (TYPE_FIELDS (ctx->record_type) == NULL) | |
2264 | ctx->record_type = NULL; | |
2265 | else | |
2266 | layout_type (ctx->record_type); | |
2267 | } | |
2268 | ||
86938de6 TV |
2269 | /* Return true if the CLAUSES of an omp target guarantee that the base pointers |
2270 | used in the corresponding offloaded function are restrict. */ | |
2271 | ||
2272 | static bool | |
2273 | omp_target_base_pointers_restrict_p (tree clauses) | |
2274 | { | |
2275 | /* The analysis relies on the GOMP_MAP_FORCE_* mapping kinds, which are only | |
2276 | used by OpenACC. */ | |
2277 | if (flag_openacc == 0) | |
2278 | return false; | |
2279 | ||
2280 | /* I. Basic example: | |
2281 | ||
2282 | void foo (void) | |
2283 | { | |
2284 | unsigned int a[2], b[2]; | |
2285 | ||
2286 | #pragma acc kernels \ | |
2287 | copyout (a) \ | |
2288 | copyout (b) | |
2289 | { | |
2290 | a[0] = 0; | |
2291 | b[0] = 1; | |
2292 | } | |
2293 | } | |
2294 | ||
2295 | After gimplification, we have: | |
2296 | ||
2297 | #pragma omp target oacc_kernels \ | |
2298 | map(force_from:a [len: 8]) \ | |
2299 | map(force_from:b [len: 8]) | |
2300 | { | |
2301 | a[0] = 0; | |
2302 | b[0] = 1; | |
2303 | } | |
2304 | ||
2305 | Because both mappings have the force prefix, we know that they will be | |
2306 | allocated when calling the corresponding offloaded function, which means we | |
2307 | can mark the base pointers for a and b in the offloaded function as | |
2308 | restrict. */ | |
2309 | ||
2310 | tree c; | |
2311 | for (c = clauses; c; c = OMP_CLAUSE_CHAIN (c)) | |
2312 | { | |
2313 | if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_MAP) | |
2314 | return false; | |
2315 | ||
2316 | switch (OMP_CLAUSE_MAP_KIND (c)) | |
2317 | { | |
2318 | case GOMP_MAP_FORCE_ALLOC: | |
2319 | case GOMP_MAP_FORCE_TO: | |
2320 | case GOMP_MAP_FORCE_FROM: | |
2321 | case GOMP_MAP_FORCE_TOFROM: | |
2322 | break; | |
2323 | default: | |
2324 | return false; | |
2325 | } | |
2326 | } | |
2327 | ||
2328 | return true; | |
2329 | } | |
2330 | ||
41dbbb37 | 2331 | /* Scan a GIMPLE_OMP_TARGET. */ |
acf0174b JJ |
2332 | |
2333 | static void | |
538dd0b7 | 2334 | scan_omp_target (gomp_target *stmt, omp_context *outer_ctx) |
acf0174b JJ |
2335 | { |
2336 | omp_context *ctx; | |
2337 | tree name; | |
41dbbb37 TS |
2338 | bool offloaded = is_gimple_omp_offloaded (stmt); |
2339 | tree clauses = gimple_omp_target_clauses (stmt); | |
acf0174b JJ |
2340 | |
2341 | ctx = new_omp_context (stmt, outer_ctx); | |
2342 | ctx->field_map = splay_tree_new (splay_tree_compare_pointers, 0, 0); | |
acf0174b JJ |
2343 | ctx->record_type = lang_hooks.types.make_type (RECORD_TYPE); |
2344 | name = create_tmp_var_name (".omp_data_t"); | |
2345 | name = build_decl (gimple_location (stmt), | |
2346 | TYPE_DECL, name, ctx->record_type); | |
2347 | DECL_ARTIFICIAL (name) = 1; | |
2348 | DECL_NAMELESS (name) = 1; | |
2349 | TYPE_NAME (ctx->record_type) = name; | |
f7484978 | 2350 | TYPE_ARTIFICIAL (ctx->record_type) = 1; |
86938de6 TV |
2351 | |
2352 | bool base_pointers_restrict = false; | |
41dbbb37 | 2353 | if (offloaded) |
acf0174b JJ |
2354 | { |
2355 | create_omp_child_function (ctx, false); | |
2356 | gimple_omp_target_set_child_fn (stmt, ctx->cb.dst_fn); | |
86938de6 TV |
2357 | |
2358 | base_pointers_restrict = omp_target_base_pointers_restrict_p (clauses); | |
2359 | if (base_pointers_restrict | |
2360 | && dump_file && (dump_flags & TDF_DETAILS)) | |
2361 | fprintf (dump_file, | |
2362 | "Base pointers in offloaded function are restrict\n"); | |
acf0174b JJ |
2363 | } |
2364 | ||
86938de6 | 2365 | scan_sharing_clauses (clauses, ctx, base_pointers_restrict); |
acf0174b JJ |
2366 | scan_omp (gimple_omp_body_ptr (stmt), ctx); |
2367 | ||
2368 | if (TYPE_FIELDS (ctx->record_type) == NULL) | |
2369 | ctx->record_type = ctx->receiver_decl = NULL; | |
2370 | else | |
2371 | { | |
2372 | TYPE_FIELDS (ctx->record_type) | |
2373 | = nreverse (TYPE_FIELDS (ctx->record_type)); | |
b2b29377 MM |
2374 | if (flag_checking) |
2375 | { | |
2376 | unsigned int align = DECL_ALIGN (TYPE_FIELDS (ctx->record_type)); | |
2377 | for (tree field = TYPE_FIELDS (ctx->record_type); | |
2378 | field; | |
2379 | field = DECL_CHAIN (field)) | |
2380 | gcc_assert (DECL_ALIGN (field) == align); | |
2381 | } | |
acf0174b | 2382 | layout_type (ctx->record_type); |
41dbbb37 | 2383 | if (offloaded) |
acf0174b JJ |
2384 | fixup_child_record_type (ctx); |
2385 | } | |
2386 | } | |
2387 | ||
2388 | /* Scan an OpenMP teams directive. */ | |
2389 | ||
2390 | static void | |
538dd0b7 | 2391 | scan_omp_teams (gomp_teams *stmt, omp_context *outer_ctx) |
acf0174b JJ |
2392 | { |
2393 | omp_context *ctx = new_omp_context (stmt, outer_ctx); | |
2394 | scan_sharing_clauses (gimple_omp_teams_clauses (stmt), ctx); | |
2395 | scan_omp (gimple_omp_body_ptr (stmt), ctx); | |
2396 | } | |
953ff289 | 2397 | |
41dbbb37 | 2398 | /* Check nesting restrictions. */ |
26127932 | 2399 | static bool |
355fe088 | 2400 | check_omp_nesting_restrictions (gimple *stmt, omp_context *ctx) |
a6fc8e21 | 2401 | { |
d9a6bd32 JJ |
2402 | tree c; |
2403 | ||
b2b40051 MJ |
2404 | if (ctx && gimple_code (ctx->stmt) == GIMPLE_OMP_GRID_BODY) |
2405 | /* GRID_BODY is an artificial construct, nesting rules will be checked in | |
2406 | the original copy of its contents. */ | |
2407 | return true; | |
2408 | ||
41dbbb37 TS |
2409 | /* No nesting of non-OpenACC STMT (that is, an OpenMP one, or a GOMP builtin) |
2410 | inside an OpenACC CTX. */ | |
2411 | if (!(is_gimple_omp (stmt) | |
640b7e74 TV |
2412 | && is_gimple_omp_oacc (stmt)) |
2413 | /* Except for atomic codes that we share with OpenMP. */ | |
2414 | && !(gimple_code (stmt) == GIMPLE_OMP_ATOMIC_LOAD | |
2415 | || gimple_code (stmt) == GIMPLE_OMP_ATOMIC_STORE)) | |
2416 | { | |
629b3d75 | 2417 | if (oacc_get_fn_attrib (cfun->decl) != NULL) |
640b7e74 TV |
2418 | { |
2419 | error_at (gimple_location (stmt), | |
2420 | "non-OpenACC construct inside of OpenACC routine"); | |
2421 | return false; | |
2422 | } | |
2423 | else | |
2424 | for (omp_context *octx = ctx; octx != NULL; octx = octx->outer) | |
2425 | if (is_gimple_omp (octx->stmt) | |
2426 | && is_gimple_omp_oacc (octx->stmt)) | |
2427 | { | |
2428 | error_at (gimple_location (stmt), | |
2429 | "non-OpenACC construct inside of OpenACC region"); | |
2430 | return false; | |
2431 | } | |
41dbbb37 TS |
2432 | } |
2433 | ||
74bf76ed JJ |
2434 | if (ctx != NULL) |
2435 | { | |
2436 | if (gimple_code (ctx->stmt) == GIMPLE_OMP_FOR | |
0aadce73 | 2437 | && gimple_omp_for_kind (ctx->stmt) & GF_OMP_FOR_SIMD) |
74bf76ed | 2438 | { |
d9a6bd32 JJ |
2439 | c = NULL_TREE; |
2440 | if (gimple_code (stmt) == GIMPLE_OMP_ORDERED) | |
2441 | { | |
2442 | c = gimple_omp_ordered_clauses (as_a <gomp_ordered *> (stmt)); | |
629b3d75 | 2443 | if (omp_find_clause (c, OMP_CLAUSE_SIMD)) |
d9f4ea18 | 2444 | { |
629b3d75 | 2445 | if (omp_find_clause (c, OMP_CLAUSE_THREADS) |
d9f4ea18 JJ |
2446 | && (ctx->outer == NULL |
2447 | || !gimple_omp_for_combined_into_p (ctx->stmt) | |
2448 | || gimple_code (ctx->outer->stmt) != GIMPLE_OMP_FOR | |
2449 | || (gimple_omp_for_kind (ctx->outer->stmt) | |
2450 | != GF_OMP_FOR_KIND_FOR) | |
2451 | || !gimple_omp_for_combined_p (ctx->outer->stmt))) | |
2452 | { | |
2453 | error_at (gimple_location (stmt), | |
2454 | "%<ordered simd threads%> must be closely " | |
2455 | "nested inside of %<for simd%> region"); | |
2456 | return false; | |
2457 | } | |
2458 | return true; | |
2459 | } | |
d9a6bd32 | 2460 | } |
74bf76ed | 2461 | error_at (gimple_location (stmt), |
d9a6bd32 | 2462 | "OpenMP constructs other than %<#pragma omp ordered simd%>" |
d9f4ea18 | 2463 | " may not be nested inside %<simd%> region"); |
74bf76ed JJ |
2464 | return false; |
2465 | } | |
acf0174b JJ |
2466 | else if (gimple_code (ctx->stmt) == GIMPLE_OMP_TEAMS) |
2467 | { | |
2468 | if ((gimple_code (stmt) != GIMPLE_OMP_FOR | |
56b1c60e MJ |
2469 | || ((gimple_omp_for_kind (stmt) != GF_OMP_FOR_KIND_DISTRIBUTE) |
2470 | && (gimple_omp_for_kind (stmt) != GF_OMP_FOR_KIND_GRID_LOOP))) | |
acf0174b JJ |
2471 | && gimple_code (stmt) != GIMPLE_OMP_PARALLEL) |
2472 | { | |
2473 | error_at (gimple_location (stmt), | |
d9f4ea18 JJ |
2474 | "only %<distribute%> or %<parallel%> regions are " |
2475 | "allowed to be strictly nested inside %<teams%> " | |
2476 | "region"); | |
acf0174b JJ |
2477 | return false; |
2478 | } | |
2479 | } | |
74bf76ed | 2480 | } |
726a989a | 2481 | switch (gimple_code (stmt)) |
a6fc8e21 | 2482 | { |
726a989a | 2483 | case GIMPLE_OMP_FOR: |
0aadce73 | 2484 | if (gimple_omp_for_kind (stmt) & GF_OMP_FOR_SIMD) |
74bf76ed | 2485 | return true; |
acf0174b JJ |
2486 | if (gimple_omp_for_kind (stmt) == GF_OMP_FOR_KIND_DISTRIBUTE) |
2487 | { | |
2488 | if (ctx != NULL && gimple_code (ctx->stmt) != GIMPLE_OMP_TEAMS) | |
2489 | { | |
2490 | error_at (gimple_location (stmt), | |
d9f4ea18 JJ |
2491 | "%<distribute%> region must be strictly nested " |
2492 | "inside %<teams%> construct"); | |
acf0174b JJ |
2493 | return false; |
2494 | } | |
2495 | return true; | |
2496 | } | |
d9a6bd32 JJ |
2497 | /* We split taskloop into task and nested taskloop in it. */ |
2498 | if (gimple_omp_for_kind (stmt) == GF_OMP_FOR_KIND_TASKLOOP) | |
2499 | return true; | |
68d58afb NS |
2500 | if (gimple_omp_for_kind (stmt) == GF_OMP_FOR_KIND_OACC_LOOP) |
2501 | { | |
2502 | bool ok = false; | |
01914336 | 2503 | |
68d58afb NS |
2504 | if (ctx) |
2505 | switch (gimple_code (ctx->stmt)) | |
2506 | { | |
2507 | case GIMPLE_OMP_FOR: | |
2508 | ok = (gimple_omp_for_kind (ctx->stmt) | |
2509 | == GF_OMP_FOR_KIND_OACC_LOOP); | |
2510 | break; | |
2511 | ||
2512 | case GIMPLE_OMP_TARGET: | |
2513 | switch (gimple_omp_target_kind (ctx->stmt)) | |
2514 | { | |
2515 | case GF_OMP_TARGET_KIND_OACC_PARALLEL: | |
2516 | case GF_OMP_TARGET_KIND_OACC_KERNELS: | |
2517 | ok = true; | |
2518 | break; | |
2519 | ||
2520 | default: | |
2521 | break; | |
2522 | } | |
2523 | ||
2524 | default: | |
2525 | break; | |
2526 | } | |
629b3d75 | 2527 | else if (oacc_get_fn_attrib (current_function_decl)) |
68d58afb NS |
2528 | ok = true; |
2529 | if (!ok) | |
2530 | { | |
2531 | error_at (gimple_location (stmt), | |
2532 | "OpenACC loop directive must be associated with" | |
2533 | " an OpenACC compute region"); | |
2534 | return false; | |
2535 | } | |
2536 | } | |
acf0174b JJ |
2537 | /* FALLTHRU */ |
2538 | case GIMPLE_CALL: | |
2539 | if (is_gimple_call (stmt) | |
2540 | && (DECL_FUNCTION_CODE (gimple_call_fndecl (stmt)) | |
2541 | == BUILT_IN_GOMP_CANCEL | |
2542 | || DECL_FUNCTION_CODE (gimple_call_fndecl (stmt)) | |
2543 | == BUILT_IN_GOMP_CANCELLATION_POINT)) | |
2544 | { | |
2545 | const char *bad = NULL; | |
2546 | const char *kind = NULL; | |
d9f4ea18 JJ |
2547 | const char *construct |
2548 | = (DECL_FUNCTION_CODE (gimple_call_fndecl (stmt)) | |
2549 | == BUILT_IN_GOMP_CANCEL) | |
2550 | ? "#pragma omp cancel" | |
2551 | : "#pragma omp cancellation point"; | |
acf0174b JJ |
2552 | if (ctx == NULL) |
2553 | { | |
2554 | error_at (gimple_location (stmt), "orphaned %qs construct", | |
d9f4ea18 | 2555 | construct); |
acf0174b JJ |
2556 | return false; |
2557 | } | |
9541ffee | 2558 | switch (tree_fits_shwi_p (gimple_call_arg (stmt, 0)) |
9439e9a1 | 2559 | ? tree_to_shwi (gimple_call_arg (stmt, 0)) |
acf0174b JJ |
2560 | : 0) |
2561 | { | |
2562 | case 1: | |
2563 | if (gimple_code (ctx->stmt) != GIMPLE_OMP_PARALLEL) | |
2564 | bad = "#pragma omp parallel"; | |
2565 | else if (DECL_FUNCTION_CODE (gimple_call_fndecl (stmt)) | |
2566 | == BUILT_IN_GOMP_CANCEL | |
2567 | && !integer_zerop (gimple_call_arg (stmt, 1))) | |
2568 | ctx->cancellable = true; | |
2569 | kind = "parallel"; | |
2570 | break; | |
2571 | case 2: | |
2572 | if (gimple_code (ctx->stmt) != GIMPLE_OMP_FOR | |
2573 | || gimple_omp_for_kind (ctx->stmt) != GF_OMP_FOR_KIND_FOR) | |
2574 | bad = "#pragma omp for"; | |
2575 | else if (DECL_FUNCTION_CODE (gimple_call_fndecl (stmt)) | |
2576 | == BUILT_IN_GOMP_CANCEL | |
2577 | && !integer_zerop (gimple_call_arg (stmt, 1))) | |
2578 | { | |
2579 | ctx->cancellable = true; | |
629b3d75 | 2580 | if (omp_find_clause (gimple_omp_for_clauses (ctx->stmt), |
acf0174b JJ |
2581 | OMP_CLAUSE_NOWAIT)) |
2582 | warning_at (gimple_location (stmt), 0, | |
2583 | "%<#pragma omp cancel for%> inside " | |
2584 | "%<nowait%> for construct"); | |
629b3d75 | 2585 | if (omp_find_clause (gimple_omp_for_clauses (ctx->stmt), |
acf0174b JJ |
2586 | OMP_CLAUSE_ORDERED)) |
2587 | warning_at (gimple_location (stmt), 0, | |
2588 | "%<#pragma omp cancel for%> inside " | |
2589 | "%<ordered%> for construct"); | |
2590 | } | |
2591 | kind = "for"; | |
2592 | break; | |
2593 | case 4: | |
2594 | if (gimple_code (ctx->stmt) != GIMPLE_OMP_SECTIONS | |
2595 | && gimple_code (ctx->stmt) != GIMPLE_OMP_SECTION) | |
2596 | bad = "#pragma omp sections"; | |
2597 | else if (DECL_FUNCTION_CODE (gimple_call_fndecl (stmt)) | |
2598 | == BUILT_IN_GOMP_CANCEL | |
2599 | && !integer_zerop (gimple_call_arg (stmt, 1))) | |
2600 | { | |
2601 | if (gimple_code (ctx->stmt) == GIMPLE_OMP_SECTIONS) | |
2602 | { | |
2603 | ctx->cancellable = true; | |
629b3d75 | 2604 | if (omp_find_clause (gimple_omp_sections_clauses |
acf0174b JJ |
2605 | (ctx->stmt), |
2606 | OMP_CLAUSE_NOWAIT)) | |
2607 | warning_at (gimple_location (stmt), 0, | |
2608 | "%<#pragma omp cancel sections%> inside " | |
2609 | "%<nowait%> sections construct"); | |
2610 | } | |
2611 | else | |
2612 | { | |
2613 | gcc_assert (ctx->outer | |
2614 | && gimple_code (ctx->outer->stmt) | |
2615 | == GIMPLE_OMP_SECTIONS); | |
2616 | ctx->outer->cancellable = true; | |
629b3d75 | 2617 | if (omp_find_clause (gimple_omp_sections_clauses |
acf0174b JJ |
2618 | (ctx->outer->stmt), |
2619 | OMP_CLAUSE_NOWAIT)) | |
2620 | warning_at (gimple_location (stmt), 0, | |
2621 | "%<#pragma omp cancel sections%> inside " | |
2622 | "%<nowait%> sections construct"); | |
2623 | } | |
2624 | } | |
2625 | kind = "sections"; | |
2626 | break; | |
2627 | case 8: | |
2628 | if (gimple_code (ctx->stmt) != GIMPLE_OMP_TASK) | |
2629 | bad = "#pragma omp task"; | |
2630 | else | |
d9f4ea18 JJ |
2631 | { |
2632 | for (omp_context *octx = ctx->outer; | |
2633 | octx; octx = octx->outer) | |
2634 | { | |
2635 | switch (gimple_code (octx->stmt)) | |
2636 | { | |
2637 | case GIMPLE_OMP_TASKGROUP: | |
2638 | break; | |
2639 | case GIMPLE_OMP_TARGET: | |
2640 | if (gimple_omp_target_kind (octx->stmt) | |
2641 | != GF_OMP_TARGET_KIND_REGION) | |
2642 | continue; | |
2643 | /* FALLTHRU */ | |
2644 | case GIMPLE_OMP_PARALLEL: | |
2645 | case GIMPLE_OMP_TEAMS: | |
2646 | error_at (gimple_location (stmt), | |
2647 | "%<%s taskgroup%> construct not closely " | |
2648 | "nested inside of %<taskgroup%> region", | |
2649 | construct); | |
2650 | return false; | |
2651 | default: | |
2652 | continue; | |
2653 | } | |
2654 | break; | |
2655 | } | |
2656 | ctx->cancellable = true; | |
2657 | } | |
acf0174b JJ |
2658 | kind = "taskgroup"; |
2659 | break; | |
2660 | default: | |
2661 | error_at (gimple_location (stmt), "invalid arguments"); | |
2662 | return false; | |
2663 | } | |
2664 | if (bad) | |
2665 | { | |
2666 | error_at (gimple_location (stmt), | |
2667 | "%<%s %s%> construct not closely nested inside of %qs", | |
d9f4ea18 | 2668 | construct, kind, bad); |
acf0174b JJ |
2669 | return false; |
2670 | } | |
2671 | } | |
74bf76ed | 2672 | /* FALLTHRU */ |
726a989a RB |
2673 | case GIMPLE_OMP_SECTIONS: |
2674 | case GIMPLE_OMP_SINGLE: | |
a6fc8e21 | 2675 | for (; ctx != NULL; ctx = ctx->outer) |
726a989a | 2676 | switch (gimple_code (ctx->stmt)) |
a6fc8e21 | 2677 | { |
726a989a | 2678 | case GIMPLE_OMP_FOR: |
d9f4ea18 JJ |
2679 | if (gimple_omp_for_kind (ctx->stmt) != GF_OMP_FOR_KIND_FOR |
2680 | && gimple_omp_for_kind (ctx->stmt) != GF_OMP_FOR_KIND_TASKLOOP) | |
2681 | break; | |
2682 | /* FALLTHRU */ | |
726a989a RB |
2683 | case GIMPLE_OMP_SECTIONS: |
2684 | case GIMPLE_OMP_SINGLE: | |
2685 | case GIMPLE_OMP_ORDERED: | |
2686 | case GIMPLE_OMP_MASTER: | |
2687 | case GIMPLE_OMP_TASK: | |
acf0174b | 2688 | case GIMPLE_OMP_CRITICAL: |
726a989a | 2689 | if (is_gimple_call (stmt)) |
a68ab351 | 2690 | { |
acf0174b JJ |
2691 | if (DECL_FUNCTION_CODE (gimple_call_fndecl (stmt)) |
2692 | != BUILT_IN_GOMP_BARRIER) | |
2693 | return true; | |
26127932 JJ |
2694 | error_at (gimple_location (stmt), |
2695 | "barrier region may not be closely nested inside " | |
d9f4ea18 JJ |
2696 | "of work-sharing, %<critical%>, %<ordered%>, " |
2697 | "%<master%>, explicit %<task%> or %<taskloop%> " | |
2698 | "region"); | |
26127932 | 2699 | return false; |
a68ab351 | 2700 | } |
26127932 JJ |
2701 | error_at (gimple_location (stmt), |
2702 | "work-sharing region may not be closely nested inside " | |
d9f4ea18 JJ |
2703 | "of work-sharing, %<critical%>, %<ordered%>, " |
2704 | "%<master%>, explicit %<task%> or %<taskloop%> region"); | |
26127932 | 2705 | return false; |
726a989a | 2706 | case GIMPLE_OMP_PARALLEL: |
d9f4ea18 | 2707 | case GIMPLE_OMP_TEAMS: |
26127932 | 2708 | return true; |
d9f4ea18 JJ |
2709 | case GIMPLE_OMP_TARGET: |
2710 | if (gimple_omp_target_kind (ctx->stmt) | |
2711 | == GF_OMP_TARGET_KIND_REGION) | |
2712 | return true; | |
2713 | break; | |
a6fc8e21 JJ |
2714 | default: |
2715 | break; | |
2716 | } | |
2717 | break; | |
726a989a | 2718 | case GIMPLE_OMP_MASTER: |
a6fc8e21 | 2719 | for (; ctx != NULL; ctx = ctx->outer) |
726a989a | 2720 | switch (gimple_code (ctx->stmt)) |
a6fc8e21 | 2721 | { |
726a989a | 2722 | case GIMPLE_OMP_FOR: |
d9f4ea18 JJ |
2723 | if (gimple_omp_for_kind (ctx->stmt) != GF_OMP_FOR_KIND_FOR |
2724 | && gimple_omp_for_kind (ctx->stmt) != GF_OMP_FOR_KIND_TASKLOOP) | |
2725 | break; | |
2726 | /* FALLTHRU */ | |
726a989a RB |
2727 | case GIMPLE_OMP_SECTIONS: |
2728 | case GIMPLE_OMP_SINGLE: | |
2729 | case GIMPLE_OMP_TASK: | |
26127932 | 2730 | error_at (gimple_location (stmt), |
d9f4ea18 JJ |
2731 | "%<master%> region may not be closely nested inside " |
2732 | "of work-sharing, explicit %<task%> or %<taskloop%> " | |
2733 | "region"); | |
26127932 | 2734 | return false; |
726a989a | 2735 | case GIMPLE_OMP_PARALLEL: |
d9f4ea18 | 2736 | case GIMPLE_OMP_TEAMS: |
26127932 | 2737 | return true; |
d9f4ea18 JJ |
2738 | case GIMPLE_OMP_TARGET: |
2739 | if (gimple_omp_target_kind (ctx->stmt) | |
2740 | == GF_OMP_TARGET_KIND_REGION) | |
2741 | return true; | |
2742 | break; | |
a6fc8e21 JJ |
2743 | default: |
2744 | break; | |
2745 | } | |
2746 | break; | |
d9a6bd32 JJ |
2747 | case GIMPLE_OMP_TASK: |
2748 | for (c = gimple_omp_task_clauses (stmt); c; c = OMP_CLAUSE_CHAIN (c)) | |
2749 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_DEPEND | |
2750 | && (OMP_CLAUSE_DEPEND_KIND (c) == OMP_CLAUSE_DEPEND_SOURCE | |
2751 | || OMP_CLAUSE_DEPEND_KIND (c) == OMP_CLAUSE_DEPEND_SINK)) | |
2752 | { | |
2753 | enum omp_clause_depend_kind kind = OMP_CLAUSE_DEPEND_KIND (c); | |
2754 | error_at (OMP_CLAUSE_LOCATION (c), | |
2755 | "%<depend(%s)%> is only allowed in %<omp ordered%>", | |
2756 | kind == OMP_CLAUSE_DEPEND_SOURCE ? "source" : "sink"); | |
2757 | return false; | |
2758 | } | |
2759 | break; | |
726a989a | 2760 | case GIMPLE_OMP_ORDERED: |
d9a6bd32 JJ |
2761 | for (c = gimple_omp_ordered_clauses (as_a <gomp_ordered *> (stmt)); |
2762 | c; c = OMP_CLAUSE_CHAIN (c)) | |
2763 | { | |
2764 | if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_DEPEND) | |
2765 | { | |
2766 | gcc_assert (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_THREADS | |
d9f4ea18 | 2767 | || OMP_CLAUSE_CODE (c) == OMP_CLAUSE_SIMD); |
d9a6bd32 JJ |
2768 | continue; |
2769 | } | |
2770 | enum omp_clause_depend_kind kind = OMP_CLAUSE_DEPEND_KIND (c); | |
2771 | if (kind == OMP_CLAUSE_DEPEND_SOURCE | |
2772 | || kind == OMP_CLAUSE_DEPEND_SINK) | |
2773 | { | |
2774 | tree oclause; | |
2775 | /* Look for containing ordered(N) loop. */ | |
2776 | if (ctx == NULL | |
2777 | || gimple_code (ctx->stmt) != GIMPLE_OMP_FOR | |
2778 | || (oclause | |
629b3d75 | 2779 | = omp_find_clause (gimple_omp_for_clauses (ctx->stmt), |
d9a6bd32 JJ |
2780 | OMP_CLAUSE_ORDERED)) == NULL_TREE) |
2781 | { | |
2782 | error_at (OMP_CLAUSE_LOCATION (c), | |
d9f4ea18 JJ |
2783 | "%<ordered%> construct with %<depend%> clause " |
2784 | "must be closely nested inside an %<ordered%> " | |
2785 | "loop"); | |
d9a6bd32 JJ |
2786 | return false; |
2787 | } | |
2788 | else if (OMP_CLAUSE_ORDERED_EXPR (oclause) == NULL_TREE) | |
2789 | { | |
2790 | error_at (OMP_CLAUSE_LOCATION (c), | |
d9f4ea18 JJ |
2791 | "%<ordered%> construct with %<depend%> clause " |
2792 | "must be closely nested inside a loop with " | |
2793 | "%<ordered%> clause with a parameter"); | |
d9a6bd32 JJ |
2794 | return false; |
2795 | } | |
2796 | } | |
2797 | else | |
2798 | { | |
2799 | error_at (OMP_CLAUSE_LOCATION (c), | |
d9f4ea18 JJ |
2800 | "invalid depend kind in omp %<ordered%> %<depend%>"); |
2801 | return false; | |
2802 | } | |
2803 | } | |
2804 | c = gimple_omp_ordered_clauses (as_a <gomp_ordered *> (stmt)); | |
629b3d75 | 2805 | if (omp_find_clause (c, OMP_CLAUSE_SIMD)) |
d9f4ea18 JJ |
2806 | { |
2807 | /* ordered simd must be closely nested inside of simd region, | |
2808 | and simd region must not encounter constructs other than | |
2809 | ordered simd, therefore ordered simd may be either orphaned, | |
2810 | or ctx->stmt must be simd. The latter case is handled already | |
2811 | earlier. */ | |
2812 | if (ctx != NULL) | |
2813 | { | |
2814 | error_at (gimple_location (stmt), | |
2815 | "%<ordered%> %<simd%> must be closely nested inside " | |
2816 | "%<simd%> region"); | |
d9a6bd32 JJ |
2817 | return false; |
2818 | } | |
2819 | } | |
a6fc8e21 | 2820 | for (; ctx != NULL; ctx = ctx->outer) |
726a989a | 2821 | switch (gimple_code (ctx->stmt)) |
a6fc8e21 | 2822 | { |
726a989a RB |
2823 | case GIMPLE_OMP_CRITICAL: |
2824 | case GIMPLE_OMP_TASK: | |
d9f4ea18 JJ |
2825 | case GIMPLE_OMP_ORDERED: |
2826 | ordered_in_taskloop: | |
26127932 | 2827 | error_at (gimple_location (stmt), |
d9f4ea18 JJ |
2828 | "%<ordered%> region may not be closely nested inside " |
2829 | "of %<critical%>, %<ordered%>, explicit %<task%> or " | |
2830 | "%<taskloop%> region"); | |
26127932 | 2831 | return false; |
726a989a | 2832 | case GIMPLE_OMP_FOR: |
d9f4ea18 JJ |
2833 | if (gimple_omp_for_kind (ctx->stmt) == GF_OMP_FOR_KIND_TASKLOOP) |
2834 | goto ordered_in_taskloop; | |
629b3d75 | 2835 | if (omp_find_clause (gimple_omp_for_clauses (ctx->stmt), |
a6fc8e21 | 2836 | OMP_CLAUSE_ORDERED) == NULL) |
26127932 JJ |
2837 | { |
2838 | error_at (gimple_location (stmt), | |
d9f4ea18 JJ |
2839 | "%<ordered%> region must be closely nested inside " |
2840 | "a loop region with an %<ordered%> clause"); | |
26127932 JJ |
2841 | return false; |
2842 | } | |
2843 | return true; | |
d9f4ea18 JJ |
2844 | case GIMPLE_OMP_TARGET: |
2845 | if (gimple_omp_target_kind (ctx->stmt) | |
2846 | != GF_OMP_TARGET_KIND_REGION) | |
2847 | break; | |
2848 | /* FALLTHRU */ | |
726a989a | 2849 | case GIMPLE_OMP_PARALLEL: |
d9f4ea18 | 2850 | case GIMPLE_OMP_TEAMS: |
acf0174b | 2851 | error_at (gimple_location (stmt), |
d9f4ea18 JJ |
2852 | "%<ordered%> region must be closely nested inside " |
2853 | "a loop region with an %<ordered%> clause"); | |
acf0174b | 2854 | return false; |
a6fc8e21 JJ |
2855 | default: |
2856 | break; | |
2857 | } | |
2858 | break; | |
726a989a | 2859 | case GIMPLE_OMP_CRITICAL: |
538dd0b7 DM |
2860 | { |
2861 | tree this_stmt_name | |
2862 | = gimple_omp_critical_name (as_a <gomp_critical *> (stmt)); | |
2863 | for (; ctx != NULL; ctx = ctx->outer) | |
2864 | if (gomp_critical *other_crit | |
2865 | = dyn_cast <gomp_critical *> (ctx->stmt)) | |
2866 | if (this_stmt_name == gimple_omp_critical_name (other_crit)) | |
2867 | { | |
2868 | error_at (gimple_location (stmt), | |
d9f4ea18 JJ |
2869 | "%<critical%> region may not be nested inside " |
2870 | "a %<critical%> region with the same name"); | |
538dd0b7 DM |
2871 | return false; |
2872 | } | |
2873 | } | |
a6fc8e21 | 2874 | break; |
acf0174b JJ |
2875 | case GIMPLE_OMP_TEAMS: |
2876 | if (ctx == NULL | |
2877 | || gimple_code (ctx->stmt) != GIMPLE_OMP_TARGET | |
2878 | || gimple_omp_target_kind (ctx->stmt) != GF_OMP_TARGET_KIND_REGION) | |
2879 | { | |
2880 | error_at (gimple_location (stmt), | |
d9f4ea18 JJ |
2881 | "%<teams%> construct not closely nested inside of " |
2882 | "%<target%> construct"); | |
acf0174b JJ |
2883 | return false; |
2884 | } | |
2885 | break; | |
f014c653 | 2886 | case GIMPLE_OMP_TARGET: |
d9a6bd32 JJ |
2887 | for (c = gimple_omp_target_clauses (stmt); c; c = OMP_CLAUSE_CHAIN (c)) |
2888 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_DEPEND | |
2889 | && (OMP_CLAUSE_DEPEND_KIND (c) == OMP_CLAUSE_DEPEND_SOURCE | |
2890 | || OMP_CLAUSE_DEPEND_KIND (c) == OMP_CLAUSE_DEPEND_SINK)) | |
2891 | { | |
2892 | enum omp_clause_depend_kind kind = OMP_CLAUSE_DEPEND_KIND (c); | |
2893 | error_at (OMP_CLAUSE_LOCATION (c), | |
2894 | "%<depend(%s)%> is only allowed in %<omp ordered%>", | |
2895 | kind == OMP_CLAUSE_DEPEND_SOURCE ? "source" : "sink"); | |
2896 | return false; | |
2897 | } | |
640b7e74 | 2898 | if (is_gimple_omp_offloaded (stmt) |
629b3d75 | 2899 | && oacc_get_fn_attrib (cfun->decl) != NULL) |
640b7e74 TV |
2900 | { |
2901 | error_at (gimple_location (stmt), | |
2902 | "OpenACC region inside of OpenACC routine, nested " | |
2903 | "parallelism not supported yet"); | |
2904 | return false; | |
2905 | } | |
f014c653 | 2906 | for (; ctx != NULL; ctx = ctx->outer) |
41dbbb37 TS |
2907 | { |
2908 | if (gimple_code (ctx->stmt) != GIMPLE_OMP_TARGET) | |
2909 | { | |
2910 | if (is_gimple_omp (stmt) | |
2911 | && is_gimple_omp_oacc (stmt) | |
2912 | && is_gimple_omp (ctx->stmt)) | |
2913 | { | |
2914 | error_at (gimple_location (stmt), | |
2915 | "OpenACC construct inside of non-OpenACC region"); | |
2916 | return false; | |
2917 | } | |
2918 | continue; | |
2919 | } | |
2920 | ||
2921 | const char *stmt_name, *ctx_stmt_name; | |
2922 | switch (gimple_omp_target_kind (stmt)) | |
2923 | { | |
2924 | case GF_OMP_TARGET_KIND_REGION: stmt_name = "target"; break; | |
2925 | case GF_OMP_TARGET_KIND_DATA: stmt_name = "target data"; break; | |
2926 | case GF_OMP_TARGET_KIND_UPDATE: stmt_name = "target update"; break; | |
d9a6bd32 JJ |
2927 | case GF_OMP_TARGET_KIND_ENTER_DATA: |
2928 | stmt_name = "target enter data"; break; | |
2929 | case GF_OMP_TARGET_KIND_EXIT_DATA: | |
2930 | stmt_name = "target exit data"; break; | |
41dbbb37 TS |
2931 | case GF_OMP_TARGET_KIND_OACC_PARALLEL: stmt_name = "parallel"; break; |
2932 | case GF_OMP_TARGET_KIND_OACC_KERNELS: stmt_name = "kernels"; break; | |
2933 | case GF_OMP_TARGET_KIND_OACC_DATA: stmt_name = "data"; break; | |
2934 | case GF_OMP_TARGET_KIND_OACC_UPDATE: stmt_name = "update"; break; | |
d9a6bd32 JJ |
2935 | case GF_OMP_TARGET_KIND_OACC_ENTER_EXIT_DATA: |
2936 | stmt_name = "enter/exit data"; break; | |
37d5ad46 JB |
2937 | case GF_OMP_TARGET_KIND_OACC_HOST_DATA: stmt_name = "host_data"; |
2938 | break; | |
41dbbb37 TS |
2939 | default: gcc_unreachable (); |
2940 | } | |
2941 | switch (gimple_omp_target_kind (ctx->stmt)) | |
2942 | { | |
2943 | case GF_OMP_TARGET_KIND_REGION: ctx_stmt_name = "target"; break; | |
2944 | case GF_OMP_TARGET_KIND_DATA: ctx_stmt_name = "target data"; break; | |
d9a6bd32 JJ |
2945 | case GF_OMP_TARGET_KIND_OACC_PARALLEL: |
2946 | ctx_stmt_name = "parallel"; break; | |
2947 | case GF_OMP_TARGET_KIND_OACC_KERNELS: | |
2948 | ctx_stmt_name = "kernels"; break; | |
41dbbb37 | 2949 | case GF_OMP_TARGET_KIND_OACC_DATA: ctx_stmt_name = "data"; break; |
37d5ad46 JB |
2950 | case GF_OMP_TARGET_KIND_OACC_HOST_DATA: |
2951 | ctx_stmt_name = "host_data"; break; | |
41dbbb37 TS |
2952 | default: gcc_unreachable (); |
2953 | } | |
2954 | ||
2955 | /* OpenACC/OpenMP mismatch? */ | |
2956 | if (is_gimple_omp_oacc (stmt) | |
2957 | != is_gimple_omp_oacc (ctx->stmt)) | |
2958 | { | |
2959 | error_at (gimple_location (stmt), | |
d9f4ea18 | 2960 | "%s %qs construct inside of %s %qs region", |
41dbbb37 TS |
2961 | (is_gimple_omp_oacc (stmt) |
2962 | ? "OpenACC" : "OpenMP"), stmt_name, | |
2963 | (is_gimple_omp_oacc (ctx->stmt) | |
2964 | ? "OpenACC" : "OpenMP"), ctx_stmt_name); | |
2965 | return false; | |
2966 | } | |
2967 | if (is_gimple_omp_offloaded (ctx->stmt)) | |
2968 | { | |
2969 | /* No GIMPLE_OMP_TARGET inside offloaded OpenACC CTX. */ | |
2970 | if (is_gimple_omp_oacc (ctx->stmt)) | |
2971 | { | |
2972 | error_at (gimple_location (stmt), | |
d9f4ea18 | 2973 | "%qs construct inside of %qs region", |
41dbbb37 TS |
2974 | stmt_name, ctx_stmt_name); |
2975 | return false; | |
2976 | } | |
2977 | else | |
2978 | { | |
41dbbb37 | 2979 | warning_at (gimple_location (stmt), 0, |
d9f4ea18 | 2980 | "%qs construct inside of %qs region", |
41dbbb37 TS |
2981 | stmt_name, ctx_stmt_name); |
2982 | } | |
2983 | } | |
2984 | } | |
f014c653 | 2985 | break; |
a6fc8e21 JJ |
2986 | default: |
2987 | break; | |
2988 | } | |
26127932 | 2989 | return true; |
a6fc8e21 JJ |
2990 | } |
2991 | ||
2992 | ||
726a989a RB |
2993 | /* Helper function scan_omp. |
2994 | ||
2995 | Callback for walk_tree or operators in walk_gimple_stmt used to | |
41dbbb37 | 2996 | scan for OMP directives in TP. */ |
953ff289 DN |
2997 | |
2998 | static tree | |
726a989a | 2999 | scan_omp_1_op (tree *tp, int *walk_subtrees, void *data) |
953ff289 | 3000 | { |
d3bfe4de KG |
3001 | struct walk_stmt_info *wi = (struct walk_stmt_info *) data; |
3002 | omp_context *ctx = (omp_context *) wi->info; | |
953ff289 DN |
3003 | tree t = *tp; |
3004 | ||
726a989a RB |
3005 | switch (TREE_CODE (t)) |
3006 | { | |
3007 | case VAR_DECL: | |
3008 | case PARM_DECL: | |
3009 | case LABEL_DECL: | |
3010 | case RESULT_DECL: | |
3011 | if (ctx) | |
b2b40051 MJ |
3012 | { |
3013 | tree repl = remap_decl (t, &ctx->cb); | |
3014 | gcc_checking_assert (TREE_CODE (repl) != ERROR_MARK); | |
3015 | *tp = repl; | |
3016 | } | |
726a989a RB |
3017 | break; |
3018 | ||
3019 | default: | |
3020 | if (ctx && TYPE_P (t)) | |
3021 | *tp = remap_type (t, &ctx->cb); | |
3022 | else if (!DECL_P (t)) | |
a900ae6b JJ |
3023 | { |
3024 | *walk_subtrees = 1; | |
3025 | if (ctx) | |
70f34814 RG |
3026 | { |
3027 | tree tem = remap_type (TREE_TYPE (t), &ctx->cb); | |
3028 | if (tem != TREE_TYPE (t)) | |
3029 | { | |
3030 | if (TREE_CODE (t) == INTEGER_CST) | |
8e6cdc90 | 3031 | *tp = wide_int_to_tree (tem, wi::to_wide (t)); |
70f34814 RG |
3032 | else |
3033 | TREE_TYPE (t) = tem; | |
3034 | } | |
3035 | } | |
a900ae6b | 3036 | } |
726a989a RB |
3037 | break; |
3038 | } | |
3039 | ||
3040 | return NULL_TREE; | |
3041 | } | |
3042 | ||
c02065fc AH |
3043 | /* Return true if FNDECL is a setjmp or a longjmp. */ |
3044 | ||
3045 | static bool | |
3046 | setjmp_or_longjmp_p (const_tree fndecl) | |
3047 | { | |
3048 | if (DECL_BUILT_IN_CLASS (fndecl) == BUILT_IN_NORMAL | |
3049 | && (DECL_FUNCTION_CODE (fndecl) == BUILT_IN_SETJMP | |
3050 | || DECL_FUNCTION_CODE (fndecl) == BUILT_IN_LONGJMP)) | |
3051 | return true; | |
3052 | ||
3053 | tree declname = DECL_NAME (fndecl); | |
3054 | if (!declname) | |
3055 | return false; | |
3056 | const char *name = IDENTIFIER_POINTER (declname); | |
3057 | return !strcmp (name, "setjmp") || !strcmp (name, "longjmp"); | |
3058 | } | |
3059 | ||
726a989a RB |
3060 | |
3061 | /* Helper function for scan_omp. | |
3062 | ||
41dbbb37 | 3063 | Callback for walk_gimple_stmt used to scan for OMP directives in |
726a989a RB |
3064 | the current statement in GSI. */ |
3065 | ||
3066 | static tree | |
3067 | scan_omp_1_stmt (gimple_stmt_iterator *gsi, bool *handled_ops_p, | |
3068 | struct walk_stmt_info *wi) | |
3069 | { | |
355fe088 | 3070 | gimple *stmt = gsi_stmt (*gsi); |
726a989a RB |
3071 | omp_context *ctx = (omp_context *) wi->info; |
3072 | ||
3073 | if (gimple_has_location (stmt)) | |
3074 | input_location = gimple_location (stmt); | |
953ff289 | 3075 | |
41dbbb37 | 3076 | /* Check the nesting restrictions. */ |
acf0174b JJ |
3077 | bool remove = false; |
3078 | if (is_gimple_omp (stmt)) | |
3079 | remove = !check_omp_nesting_restrictions (stmt, ctx); | |
3080 | else if (is_gimple_call (stmt)) | |
3081 | { | |
3082 | tree fndecl = gimple_call_fndecl (stmt); | |
c02065fc AH |
3083 | if (fndecl) |
3084 | { | |
3085 | if (setjmp_or_longjmp_p (fndecl) | |
3086 | && ctx | |
3087 | && gimple_code (ctx->stmt) == GIMPLE_OMP_FOR | |
0aadce73 | 3088 | && gimple_omp_for_kind (ctx->stmt) & GF_OMP_FOR_SIMD) |
c02065fc AH |
3089 | { |
3090 | remove = true; | |
3091 | error_at (gimple_location (stmt), | |
3092 | "setjmp/longjmp inside simd construct"); | |
3093 | } | |
3094 | else if (DECL_BUILT_IN_CLASS (fndecl) == BUILT_IN_NORMAL) | |
3095 | switch (DECL_FUNCTION_CODE (fndecl)) | |
3096 | { | |
3097 | case BUILT_IN_GOMP_BARRIER: | |
3098 | case BUILT_IN_GOMP_CANCEL: | |
3099 | case BUILT_IN_GOMP_CANCELLATION_POINT: | |
3100 | case BUILT_IN_GOMP_TASKYIELD: | |
3101 | case BUILT_IN_GOMP_TASKWAIT: | |
3102 | case BUILT_IN_GOMP_TASKGROUP_START: | |
3103 | case BUILT_IN_GOMP_TASKGROUP_END: | |
3104 | remove = !check_omp_nesting_restrictions (stmt, ctx); | |
3105 | break; | |
3106 | default: | |
3107 | break; | |
3108 | } | |
3109 | } | |
acf0174b JJ |
3110 | } |
3111 | if (remove) | |
3112 | { | |
3113 | stmt = gimple_build_nop (); | |
3114 | gsi_replace (gsi, stmt, false); | |
a68ab351 | 3115 | } |
a6fc8e21 | 3116 | |
726a989a RB |
3117 | *handled_ops_p = true; |
3118 | ||
3119 | switch (gimple_code (stmt)) | |
953ff289 | 3120 | { |
726a989a | 3121 | case GIMPLE_OMP_PARALLEL: |
a68ab351 | 3122 | taskreg_nesting_level++; |
726a989a | 3123 | scan_omp_parallel (gsi, ctx); |
a68ab351 JJ |
3124 | taskreg_nesting_level--; |
3125 | break; | |
3126 | ||
726a989a | 3127 | case GIMPLE_OMP_TASK: |
a68ab351 | 3128 | taskreg_nesting_level++; |
726a989a | 3129 | scan_omp_task (gsi, ctx); |
a68ab351 | 3130 | taskreg_nesting_level--; |
953ff289 DN |
3131 | break; |
3132 | ||
726a989a | 3133 | case GIMPLE_OMP_FOR: |
6c7509bc JJ |
3134 | if (((gimple_omp_for_kind (as_a <gomp_for *> (stmt)) |
3135 | & GF_OMP_FOR_KIND_MASK) == GF_OMP_FOR_KIND_SIMD) | |
3136 | && omp_maybe_offloaded_ctx (ctx) | |
3137 | && omp_max_simt_vf ()) | |
3138 | scan_omp_simd (gsi, as_a <gomp_for *> (stmt), ctx); | |
3139 | else | |
3140 | scan_omp_for (as_a <gomp_for *> (stmt), ctx); | |
953ff289 DN |
3141 | break; |
3142 | ||
726a989a | 3143 | case GIMPLE_OMP_SECTIONS: |
538dd0b7 | 3144 | scan_omp_sections (as_a <gomp_sections *> (stmt), ctx); |
953ff289 DN |
3145 | break; |
3146 | ||
726a989a | 3147 | case GIMPLE_OMP_SINGLE: |
538dd0b7 | 3148 | scan_omp_single (as_a <gomp_single *> (stmt), ctx); |
953ff289 DN |
3149 | break; |
3150 | ||
726a989a RB |
3151 | case GIMPLE_OMP_SECTION: |
3152 | case GIMPLE_OMP_MASTER: | |
acf0174b | 3153 | case GIMPLE_OMP_TASKGROUP: |
726a989a RB |
3154 | case GIMPLE_OMP_ORDERED: |
3155 | case GIMPLE_OMP_CRITICAL: | |
b2b40051 | 3156 | case GIMPLE_OMP_GRID_BODY: |
726a989a | 3157 | ctx = new_omp_context (stmt, ctx); |
26127932 | 3158 | scan_omp (gimple_omp_body_ptr (stmt), ctx); |
953ff289 DN |
3159 | break; |
3160 | ||
acf0174b | 3161 | case GIMPLE_OMP_TARGET: |
538dd0b7 | 3162 | scan_omp_target (as_a <gomp_target *> (stmt), ctx); |
acf0174b JJ |
3163 | break; |
3164 | ||
3165 | case GIMPLE_OMP_TEAMS: | |
538dd0b7 | 3166 | scan_omp_teams (as_a <gomp_teams *> (stmt), ctx); |
acf0174b JJ |
3167 | break; |
3168 | ||
726a989a | 3169 | case GIMPLE_BIND: |
953ff289 DN |
3170 | { |
3171 | tree var; | |
953ff289 | 3172 | |
726a989a RB |
3173 | *handled_ops_p = false; |
3174 | if (ctx) | |
538dd0b7 DM |
3175 | for (var = gimple_bind_vars (as_a <gbind *> (stmt)); |
3176 | var ; | |
3177 | var = DECL_CHAIN (var)) | |
726a989a | 3178 | insert_decl_map (&ctx->cb, var, var); |
953ff289 DN |
3179 | } |
3180 | break; | |
953ff289 | 3181 | default: |
726a989a | 3182 | *handled_ops_p = false; |
953ff289 DN |
3183 | break; |
3184 | } | |
3185 | ||
3186 | return NULL_TREE; | |
3187 | } | |
3188 | ||
3189 | ||
726a989a | 3190 | /* Scan all the statements starting at the current statement. CTX |
41dbbb37 | 3191 | contains context information about the OMP directives and |
726a989a | 3192 | clauses found during the scan. */ |
953ff289 DN |
3193 | |
3194 | static void | |
26127932 | 3195 | scan_omp (gimple_seq *body_p, omp_context *ctx) |
953ff289 DN |
3196 | { |
3197 | location_t saved_location; | |
3198 | struct walk_stmt_info wi; | |
3199 | ||
3200 | memset (&wi, 0, sizeof (wi)); | |
953ff289 | 3201 | wi.info = ctx; |
953ff289 DN |
3202 | wi.want_locations = true; |
3203 | ||
3204 | saved_location = input_location; | |
26127932 | 3205 | walk_gimple_seq_mod (body_p, scan_omp_1_stmt, scan_omp_1_op, &wi); |
953ff289 DN |
3206 | input_location = saved_location; |
3207 | } | |
3208 | \f | |
3209 | /* Re-gimplification and code generation routines. */ | |
3210 | ||
6724f8a6 JJ |
3211 | /* Remove omp_member_access_dummy_var variables from gimple_bind_vars |
3212 | of BIND if in a method. */ | |
3213 | ||
3214 | static void | |
3215 | maybe_remove_omp_member_access_dummy_vars (gbind *bind) | |
3216 | { | |
3217 | if (DECL_ARGUMENTS (current_function_decl) | |
3218 | && DECL_ARTIFICIAL (DECL_ARGUMENTS (current_function_decl)) | |
3219 | && (TREE_CODE (TREE_TYPE (DECL_ARGUMENTS (current_function_decl))) | |
3220 | == POINTER_TYPE)) | |
3221 | { | |
3222 | tree vars = gimple_bind_vars (bind); | |
3223 | for (tree *pvar = &vars; *pvar; ) | |
3224 | if (omp_member_access_dummy_var (*pvar)) | |
3225 | *pvar = DECL_CHAIN (*pvar); | |
3226 | else | |
3227 | pvar = &DECL_CHAIN (*pvar); | |
3228 | gimple_bind_set_vars (bind, vars); | |
3229 | } | |
3230 | } | |
3231 | ||
3232 | /* Remove omp_member_access_dummy_var variables from BLOCK_VARS of | |
3233 | block and its subblocks. */ | |
3234 | ||
3235 | static void | |
3236 | remove_member_access_dummy_vars (tree block) | |
3237 | { | |
3238 | for (tree *pvar = &BLOCK_VARS (block); *pvar; ) | |
3239 | if (omp_member_access_dummy_var (*pvar)) | |
3240 | *pvar = DECL_CHAIN (*pvar); | |
3241 | else | |
3242 | pvar = &DECL_CHAIN (*pvar); | |
3243 | ||
3244 | for (block = BLOCK_SUBBLOCKS (block); block; block = BLOCK_CHAIN (block)) | |
3245 | remove_member_access_dummy_vars (block); | |
3246 | } | |
3247 | ||
953ff289 DN |
3248 | /* If a context was created for STMT when it was scanned, return it. */ |
3249 | ||
3250 | static omp_context * | |
355fe088 | 3251 | maybe_lookup_ctx (gimple *stmt) |
953ff289 DN |
3252 | { |
3253 | splay_tree_node n; | |
3254 | n = splay_tree_lookup (all_contexts, (splay_tree_key) stmt); | |
3255 | return n ? (omp_context *) n->value : NULL; | |
3256 | } | |
3257 | ||
50674e96 DN |
3258 | |
3259 | /* Find the mapping for DECL in CTX or the immediately enclosing | |
3260 | context that has a mapping for DECL. | |
3261 | ||
3262 | If CTX is a nested parallel directive, we may have to use the decl | |
3263 | mappings created in CTX's parent context. Suppose that we have the | |
3264 | following parallel nesting (variable UIDs showed for clarity): | |
3265 | ||
3266 | iD.1562 = 0; | |
3267 | #omp parallel shared(iD.1562) -> outer parallel | |
3268 | iD.1562 = iD.1562 + 1; | |
3269 | ||
3270 | #omp parallel shared (iD.1562) -> inner parallel | |
3271 | iD.1562 = iD.1562 - 1; | |
3272 | ||
3273 | Each parallel structure will create a distinct .omp_data_s structure | |
3274 | for copying iD.1562 in/out of the directive: | |
3275 | ||
3276 | outer parallel .omp_data_s.1.i -> iD.1562 | |
3277 | inner parallel .omp_data_s.2.i -> iD.1562 | |
3278 | ||
3279 | A shared variable mapping will produce a copy-out operation before | |
3280 | the parallel directive and a copy-in operation after it. So, in | |
3281 | this case we would have: | |
3282 | ||
3283 | iD.1562 = 0; | |
3284 | .omp_data_o.1.i = iD.1562; | |
3285 | #omp parallel shared(iD.1562) -> outer parallel | |
3286 | .omp_data_i.1 = &.omp_data_o.1 | |
3287 | .omp_data_i.1->i = .omp_data_i.1->i + 1; | |
3288 | ||
3289 | .omp_data_o.2.i = iD.1562; -> ** | |
3290 | #omp parallel shared(iD.1562) -> inner parallel | |
3291 | .omp_data_i.2 = &.omp_data_o.2 | |
3292 | .omp_data_i.2->i = .omp_data_i.2->i - 1; | |
3293 | ||
3294 | ||
3295 | ** This is a problem. The symbol iD.1562 cannot be referenced | |
3296 | inside the body of the outer parallel region. But since we are | |
3297 | emitting this copy operation while expanding the inner parallel | |
3298 | directive, we need to access the CTX structure of the outer | |
3299 | parallel directive to get the correct mapping: | |
3300 | ||
3301 | .omp_data_o.2.i = .omp_data_i.1->i | |
3302 | ||
3303 | Since there may be other workshare or parallel directives enclosing | |
3304 | the parallel directive, it may be necessary to walk up the context | |
3305 | parent chain. This is not a problem in general because nested | |
3306 | parallelism happens only rarely. */ | |
3307 | ||
3308 | static tree | |
3309 | lookup_decl_in_outer_ctx (tree decl, omp_context *ctx) | |
3310 | { | |
3311 | tree t; | |
3312 | omp_context *up; | |
3313 | ||
50674e96 DN |
3314 | for (up = ctx->outer, t = NULL; up && t == NULL; up = up->outer) |
3315 | t = maybe_lookup_decl (decl, up); | |
3316 | ||
d2dda7fe | 3317 | gcc_assert (!ctx->is_nested || t || is_global_var (decl)); |
50674e96 | 3318 | |
64964499 | 3319 | return t ? t : decl; |
50674e96 DN |
3320 | } |
3321 | ||
3322 | ||
8ca5b2a2 JJ |
3323 | /* Similar to lookup_decl_in_outer_ctx, but return DECL if not found |
3324 | in outer contexts. */ | |
3325 | ||
3326 | static tree | |
3327 | maybe_lookup_decl_in_outer_ctx (tree decl, omp_context *ctx) | |
3328 | { | |
3329 | tree t = NULL; | |
3330 | omp_context *up; | |
3331 | ||
d2dda7fe JJ |
3332 | for (up = ctx->outer, t = NULL; up && t == NULL; up = up->outer) |
3333 | t = maybe_lookup_decl (decl, up); | |
8ca5b2a2 JJ |
3334 | |
3335 | return t ? t : decl; | |
3336 | } | |
3337 | ||
3338 | ||
f2c9f71d | 3339 | /* Construct the initialization value for reduction operation OP. */ |
953ff289 DN |
3340 | |
3341 | tree | |
f2c9f71d | 3342 | omp_reduction_init_op (location_t loc, enum tree_code op, tree type) |
953ff289 | 3343 | { |
f2c9f71d | 3344 | switch (op) |
953ff289 DN |
3345 | { |
3346 | case PLUS_EXPR: | |
3347 | case MINUS_EXPR: | |
3348 | case BIT_IOR_EXPR: | |
3349 | case BIT_XOR_EXPR: | |
3350 | case TRUTH_OR_EXPR: | |
3351 | case TRUTH_ORIF_EXPR: | |
3352 | case TRUTH_XOR_EXPR: | |
3353 | case NE_EXPR: | |
e8160c9a | 3354 | return build_zero_cst (type); |
953ff289 DN |
3355 | |
3356 | case MULT_EXPR: | |
3357 | case TRUTH_AND_EXPR: | |
3358 | case TRUTH_ANDIF_EXPR: | |
3359 | case EQ_EXPR: | |
db3927fb | 3360 | return fold_convert_loc (loc, type, integer_one_node); |
953ff289 DN |
3361 | |
3362 | case BIT_AND_EXPR: | |
db3927fb | 3363 | return fold_convert_loc (loc, type, integer_minus_one_node); |
953ff289 DN |
3364 | |
3365 | case MAX_EXPR: | |
3366 | if (SCALAR_FLOAT_TYPE_P (type)) | |
3367 | { | |
3368 | REAL_VALUE_TYPE max, min; | |
3d3dbadd | 3369 | if (HONOR_INFINITIES (type)) |
953ff289 DN |
3370 | { |
3371 | real_inf (&max); | |
3372 | real_arithmetic (&min, NEGATE_EXPR, &max, NULL); | |
3373 | } | |
3374 | else | |
3375 | real_maxval (&min, 1, TYPE_MODE (type)); | |
3376 | return build_real (type, min); | |
3377 | } | |
3ff2d74e TV |
3378 | else if (POINTER_TYPE_P (type)) |
3379 | { | |
3380 | wide_int min | |
3381 | = wi::min_value (TYPE_PRECISION (type), TYPE_SIGN (type)); | |
3382 | return wide_int_to_tree (type, min); | |
3383 | } | |
953ff289 DN |
3384 | else |
3385 | { | |
3386 | gcc_assert (INTEGRAL_TYPE_P (type)); | |
3387 | return TYPE_MIN_VALUE (type); | |
3388 | } | |
3389 | ||
3390 | case MIN_EXPR: | |
3391 | if (SCALAR_FLOAT_TYPE_P (type)) | |
3392 | { | |
3393 | REAL_VALUE_TYPE max; | |
3d3dbadd | 3394 | if (HONOR_INFINITIES (type)) |
953ff289 DN |
3395 | real_inf (&max); |
3396 | else | |
3397 | real_maxval (&max, 0, TYPE_MODE (type)); | |
3398 | return build_real (type, max); | |
3399 | } | |
3ff2d74e TV |
3400 | else if (POINTER_TYPE_P (type)) |
3401 | { | |
3402 | wide_int max | |
3403 | = wi::max_value (TYPE_PRECISION (type), TYPE_SIGN (type)); | |
3404 | return wide_int_to_tree (type, max); | |
3405 | } | |
953ff289 DN |
3406 | else |
3407 | { | |
3408 | gcc_assert (INTEGRAL_TYPE_P (type)); | |
3409 | return TYPE_MAX_VALUE (type); | |
3410 | } | |
3411 | ||
3412 | default: | |
3413 | gcc_unreachable (); | |
3414 | } | |
3415 | } | |
3416 | ||
f2c9f71d TS |
3417 | /* Construct the initialization value for reduction CLAUSE. */ |
3418 | ||
3419 | tree | |
3420 | omp_reduction_init (tree clause, tree type) | |
3421 | { | |
3422 | return omp_reduction_init_op (OMP_CLAUSE_LOCATION (clause), | |
3423 | OMP_CLAUSE_REDUCTION_CODE (clause), type); | |
3424 | } | |
3425 | ||
acf0174b JJ |
3426 | /* Return alignment to be assumed for var in CLAUSE, which should be |
3427 | OMP_CLAUSE_ALIGNED. */ | |
3428 | ||
3429 | static tree | |
3430 | omp_clause_aligned_alignment (tree clause) | |
3431 | { | |
3432 | if (OMP_CLAUSE_ALIGNED_ALIGNMENT (clause)) | |
3433 | return OMP_CLAUSE_ALIGNED_ALIGNMENT (clause); | |
3434 | ||
3435 | /* Otherwise return implementation defined alignment. */ | |
3436 | unsigned int al = 1; | |
16d22000 | 3437 | opt_scalar_mode mode_iter; |
86e36728 RS |
3438 | auto_vector_sizes sizes; |
3439 | targetm.vectorize.autovectorize_vector_sizes (&sizes); | |
3440 | poly_uint64 vs = 0; | |
3441 | for (unsigned int i = 0; i < sizes.length (); ++i) | |
3442 | vs = ordered_max (vs, sizes[i]); | |
acf0174b JJ |
3443 | static enum mode_class classes[] |
3444 | = { MODE_INT, MODE_VECTOR_INT, MODE_FLOAT, MODE_VECTOR_FLOAT }; | |
3445 | for (int i = 0; i < 4; i += 2) | |
16d22000 RS |
3446 | /* The for loop above dictates that we only walk through scalar classes. */ |
3447 | FOR_EACH_MODE_IN_CLASS (mode_iter, classes[i]) | |
acf0174b | 3448 | { |
16d22000 RS |
3449 | scalar_mode mode = mode_iter.require (); |
3450 | machine_mode vmode = targetm.vectorize.preferred_simd_mode (mode); | |
acf0174b JJ |
3451 | if (GET_MODE_CLASS (vmode) != classes[i + 1]) |
3452 | continue; | |
86e36728 RS |
3453 | while (maybe_ne (vs, 0U) |
3454 | && known_lt (GET_MODE_SIZE (vmode), vs) | |
490d0f6c RS |
3455 | && GET_MODE_2XWIDER_MODE (vmode).exists ()) |
3456 | vmode = GET_MODE_2XWIDER_MODE (vmode).require (); | |
01914336 | 3457 | |
acf0174b JJ |
3458 | tree type = lang_hooks.types.type_for_mode (mode, 1); |
3459 | if (type == NULL_TREE || TYPE_MODE (type) != mode) | |
3460 | continue; | |
cf098191 RS |
3461 | poly_uint64 nelts = exact_div (GET_MODE_SIZE (vmode), |
3462 | GET_MODE_SIZE (mode)); | |
86e36728 | 3463 | type = build_vector_type (type, nelts); |
acf0174b JJ |
3464 | if (TYPE_MODE (type) != vmode) |
3465 | continue; | |
3466 | if (TYPE_ALIGN_UNIT (type) > al) | |
3467 | al = TYPE_ALIGN_UNIT (type); | |
3468 | } | |
3469 | return build_int_cst (integer_type_node, al); | |
3470 | } | |
3471 | ||
6943af07 AM |
3472 | |
3473 | /* This structure is part of the interface between lower_rec_simd_input_clauses | |
3474 | and lower_rec_input_clauses. */ | |
3475 | ||
3476 | struct omplow_simd_context { | |
9d2f08ab | 3477 | omplow_simd_context () { memset (this, 0, sizeof (*this)); } |
6943af07 AM |
3478 | tree idx; |
3479 | tree lane; | |
0c6b03b5 AM |
3480 | vec<tree, va_heap> simt_eargs; |
3481 | gimple_seq simt_dlist; | |
9d2f08ab | 3482 | poly_uint64_pod max_vf; |
6943af07 AM |
3483 | bool is_simt; |
3484 | }; | |
3485 | ||
74bf76ed JJ |
3486 | /* Helper function of lower_rec_input_clauses, used for #pragma omp simd |
3487 | privatization. */ | |
3488 | ||
3489 | static bool | |
6943af07 AM |
3490 | lower_rec_simd_input_clauses (tree new_var, omp_context *ctx, |
3491 | omplow_simd_context *sctx, tree &ivar, tree &lvar) | |
74bf76ed | 3492 | { |
9d2f08ab | 3493 | if (known_eq (sctx->max_vf, 0U)) |
74bf76ed | 3494 | { |
6943af07 | 3495 | sctx->max_vf = sctx->is_simt ? omp_max_simt_vf () : omp_max_vf (); |
9d2f08ab | 3496 | if (maybe_gt (sctx->max_vf, 1U)) |
74bf76ed | 3497 | { |
629b3d75 | 3498 | tree c = omp_find_clause (gimple_omp_for_clauses (ctx->stmt), |
74bf76ed | 3499 | OMP_CLAUSE_SAFELEN); |
9d2f08ab RS |
3500 | if (c) |
3501 | { | |
3502 | poly_uint64 safe_len; | |
3503 | if (!poly_int_tree_p (OMP_CLAUSE_SAFELEN_EXPR (c), &safe_len) | |
3504 | || maybe_lt (safe_len, 1U)) | |
3505 | sctx->max_vf = 1; | |
3506 | else | |
3507 | sctx->max_vf = lower_bound (sctx->max_vf, safe_len); | |
3508 | } | |
74bf76ed | 3509 | } |
9d2f08ab | 3510 | if (maybe_gt (sctx->max_vf, 1U)) |
74bf76ed | 3511 | { |
6943af07 AM |
3512 | sctx->idx = create_tmp_var (unsigned_type_node); |
3513 | sctx->lane = create_tmp_var (unsigned_type_node); | |
74bf76ed JJ |
3514 | } |
3515 | } | |
9d2f08ab | 3516 | if (known_eq (sctx->max_vf, 1U)) |
74bf76ed JJ |
3517 | return false; |
3518 | ||
0c6b03b5 AM |
3519 | if (sctx->is_simt) |
3520 | { | |
3521 | if (is_gimple_reg (new_var)) | |
3522 | { | |
3523 | ivar = lvar = new_var; | |
3524 | return true; | |
3525 | } | |
3526 | tree type = TREE_TYPE (new_var), ptype = build_pointer_type (type); | |
3527 | ivar = lvar = create_tmp_var (type); | |
3528 | TREE_ADDRESSABLE (ivar) = 1; | |
3529 | DECL_ATTRIBUTES (ivar) = tree_cons (get_identifier ("omp simt private"), | |
3530 | NULL, DECL_ATTRIBUTES (ivar)); | |
3531 | sctx->simt_eargs.safe_push (build1 (ADDR_EXPR, ptype, ivar)); | |
3532 | tree clobber = build_constructor (type, NULL); | |
3533 | TREE_THIS_VOLATILE (clobber) = 1; | |
3534 | gimple *g = gimple_build_assign (ivar, clobber); | |
3535 | gimple_seq_add_stmt (&sctx->simt_dlist, g); | |
3536 | } | |
3537 | else | |
3538 | { | |
3539 | tree atype = build_array_type_nelts (TREE_TYPE (new_var), sctx->max_vf); | |
3540 | tree avar = create_tmp_var_raw (atype); | |
3541 | if (TREE_ADDRESSABLE (new_var)) | |
3542 | TREE_ADDRESSABLE (avar) = 1; | |
3543 | DECL_ATTRIBUTES (avar) | |
3544 | = tree_cons (get_identifier ("omp simd array"), NULL, | |
3545 | DECL_ATTRIBUTES (avar)); | |
3546 | gimple_add_tmp_var (avar); | |
3547 | ivar = build4 (ARRAY_REF, TREE_TYPE (new_var), avar, sctx->idx, | |
3548 | NULL_TREE, NULL_TREE); | |
3549 | lvar = build4 (ARRAY_REF, TREE_TYPE (new_var), avar, sctx->lane, | |
3550 | NULL_TREE, NULL_TREE); | |
3551 | } | |
acf0174b JJ |
3552 | if (DECL_P (new_var)) |
3553 | { | |
3554 | SET_DECL_VALUE_EXPR (new_var, lvar); | |
3555 | DECL_HAS_VALUE_EXPR_P (new_var) = 1; | |
3556 | } | |
74bf76ed JJ |
3557 | return true; |
3558 | } | |
3559 | ||
decaaec8 JJ |
3560 | /* Helper function of lower_rec_input_clauses. For a reference |
3561 | in simd reduction, add an underlying variable it will reference. */ | |
3562 | ||
3563 | static void | |
3564 | handle_simd_reference (location_t loc, tree new_vard, gimple_seq *ilist) | |
3565 | { | |
3566 | tree z = TYPE_SIZE_UNIT (TREE_TYPE (TREE_TYPE (new_vard))); | |
3567 | if (TREE_CONSTANT (z)) | |
3568 | { | |
d9a6bd32 JJ |
3569 | z = create_tmp_var_raw (TREE_TYPE (TREE_TYPE (new_vard)), |
3570 | get_name (new_vard)); | |
decaaec8 JJ |
3571 | gimple_add_tmp_var (z); |
3572 | TREE_ADDRESSABLE (z) = 1; | |
3573 | z = build_fold_addr_expr_loc (loc, z); | |
3574 | gimplify_assign (new_vard, z, ilist); | |
3575 | } | |
3576 | } | |
3577 | ||
953ff289 DN |
3578 | /* Generate code to implement the input clauses, FIRSTPRIVATE and COPYIN, |
3579 | from the receiver (aka child) side and initializers for REFERENCE_TYPE | |
3580 | private variables. Initialization statements go in ILIST, while calls | |
3581 | to destructors go in DLIST. */ | |
3582 | ||
3583 | static void | |
726a989a | 3584 | lower_rec_input_clauses (tree clauses, gimple_seq *ilist, gimple_seq *dlist, |
acf0174b | 3585 | omp_context *ctx, struct omp_for_data *fd) |
953ff289 | 3586 | { |
5039610b | 3587 | tree c, dtor, copyin_seq, x, ptr; |
953ff289 | 3588 | bool copyin_by_ref = false; |
8ca5b2a2 | 3589 | bool lastprivate_firstprivate = false; |
acf0174b | 3590 | bool reduction_omp_orig_ref = false; |
953ff289 | 3591 | int pass; |
74bf76ed | 3592 | bool is_simd = (gimple_code (ctx->stmt) == GIMPLE_OMP_FOR |
0aadce73 | 3593 | && gimple_omp_for_kind (ctx->stmt) & GF_OMP_FOR_SIMD); |
6943af07 | 3594 | omplow_simd_context sctx = omplow_simd_context (); |
0c6b03b5 AM |
3595 | tree simt_lane = NULL_TREE, simtrec = NULL_TREE; |
3596 | tree ivar = NULL_TREE, lvar = NULL_TREE, uid = NULL_TREE; | |
9669b00b | 3597 | gimple_seq llist[3] = { }; |
953ff289 | 3598 | |
953ff289 | 3599 | copyin_seq = NULL; |
6943af07 | 3600 | sctx.is_simt = is_simd && omp_find_clause (clauses, OMP_CLAUSE__SIMT_); |
953ff289 | 3601 | |
74bf76ed JJ |
3602 | /* Set max_vf=1 (which will later enforce safelen=1) in simd loops |
3603 | with data sharing clauses referencing variable sized vars. That | |
3604 | is unnecessarily hard to support and very unlikely to result in | |
3605 | vectorized code anyway. */ | |
3606 | if (is_simd) | |
3607 | for (c = clauses; c ; c = OMP_CLAUSE_CHAIN (c)) | |
3608 | switch (OMP_CLAUSE_CODE (c)) | |
3609 | { | |
da6f124d JJ |
3610 | case OMP_CLAUSE_LINEAR: |
3611 | if (OMP_CLAUSE_LINEAR_ARRAY (c)) | |
6943af07 | 3612 | sctx.max_vf = 1; |
da6f124d | 3613 | /* FALLTHRU */ |
74bf76ed JJ |
3614 | case OMP_CLAUSE_PRIVATE: |
3615 | case OMP_CLAUSE_FIRSTPRIVATE: | |
3616 | case OMP_CLAUSE_LASTPRIVATE: | |
74bf76ed | 3617 | if (is_variable_sized (OMP_CLAUSE_DECL (c))) |
6943af07 | 3618 | sctx.max_vf = 1; |
74bf76ed | 3619 | break; |
d9a6bd32 JJ |
3620 | case OMP_CLAUSE_REDUCTION: |
3621 | if (TREE_CODE (OMP_CLAUSE_DECL (c)) == MEM_REF | |
3622 | || is_variable_sized (OMP_CLAUSE_DECL (c))) | |
6943af07 | 3623 | sctx.max_vf = 1; |
d9a6bd32 | 3624 | break; |
74bf76ed JJ |
3625 | default: |
3626 | continue; | |
3627 | } | |
3628 | ||
0c6b03b5 | 3629 | /* Add a placeholder for simduid. */ |
9d2f08ab | 3630 | if (sctx.is_simt && maybe_ne (sctx.max_vf, 1U)) |
0c6b03b5 AM |
3631 | sctx.simt_eargs.safe_push (NULL_TREE); |
3632 | ||
953ff289 DN |
3633 | /* Do all the fixed sized types in the first pass, and the variable sized |
3634 | types in the second pass. This makes sure that the scalar arguments to | |
b8698a0f | 3635 | the variable sized types are processed before we use them in the |
953ff289 DN |
3636 | variable sized operations. */ |
3637 | for (pass = 0; pass < 2; ++pass) | |
3638 | { | |
3639 | for (c = clauses; c ; c = OMP_CLAUSE_CHAIN (c)) | |
3640 | { | |
aaf46ef9 | 3641 | enum omp_clause_code c_kind = OMP_CLAUSE_CODE (c); |
953ff289 DN |
3642 | tree var, new_var; |
3643 | bool by_ref; | |
db3927fb | 3644 | location_t clause_loc = OMP_CLAUSE_LOCATION (c); |
953ff289 DN |
3645 | |
3646 | switch (c_kind) | |
3647 | { | |
3648 | case OMP_CLAUSE_PRIVATE: | |
3649 | if (OMP_CLAUSE_PRIVATE_DEBUG (c)) | |
3650 | continue; | |
3651 | break; | |
3652 | case OMP_CLAUSE_SHARED: | |
acf0174b JJ |
3653 | /* Ignore shared directives in teams construct. */ |
3654 | if (gimple_code (ctx->stmt) == GIMPLE_OMP_TEAMS) | |
3655 | continue; | |
8ca5b2a2 JJ |
3656 | if (maybe_lookup_decl (OMP_CLAUSE_DECL (c), ctx) == NULL) |
3657 | { | |
d9a6bd32 JJ |
3658 | gcc_assert (OMP_CLAUSE_SHARED_FIRSTPRIVATE (c) |
3659 | || is_global_var (OMP_CLAUSE_DECL (c))); | |
8ca5b2a2 JJ |
3660 | continue; |
3661 | } | |
953ff289 | 3662 | case OMP_CLAUSE_FIRSTPRIVATE: |
953ff289 | 3663 | case OMP_CLAUSE_COPYIN: |
d9a6bd32 | 3664 | break; |
acf0174b | 3665 | case OMP_CLAUSE_LINEAR: |
d9a6bd32 JJ |
3666 | if (!OMP_CLAUSE_LINEAR_NO_COPYIN (c) |
3667 | && !OMP_CLAUSE_LINEAR_NO_COPYOUT (c)) | |
3668 | lastprivate_firstprivate = true; | |
acf0174b | 3669 | break; |
953ff289 | 3670 | case OMP_CLAUSE_REDUCTION: |
acf0174b JJ |
3671 | if (OMP_CLAUSE_REDUCTION_OMP_ORIG_REF (c)) |
3672 | reduction_omp_orig_ref = true; | |
953ff289 | 3673 | break; |
acf0174b | 3674 | case OMP_CLAUSE__LOOPTEMP_: |
d9a6bd32 | 3675 | /* Handle _looptemp_ clauses only on parallel/task. */ |
acf0174b JJ |
3676 | if (fd) |
3677 | continue; | |
74bf76ed | 3678 | break; |
077b0dfb | 3679 | case OMP_CLAUSE_LASTPRIVATE: |
8ca5b2a2 JJ |
3680 | if (OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE (c)) |
3681 | { | |
3682 | lastprivate_firstprivate = true; | |
d9a6bd32 | 3683 | if (pass != 0 || is_taskloop_ctx (ctx)) |
8ca5b2a2 JJ |
3684 | continue; |
3685 | } | |
92d28cbb JJ |
3686 | /* Even without corresponding firstprivate, if |
3687 | decl is Fortran allocatable, it needs outer var | |
3688 | reference. */ | |
3689 | else if (pass == 0 | |
3690 | && lang_hooks.decls.omp_private_outer_ref | |
3691 | (OMP_CLAUSE_DECL (c))) | |
3692 | lastprivate_firstprivate = true; | |
077b0dfb | 3693 | break; |
acf0174b JJ |
3694 | case OMP_CLAUSE_ALIGNED: |
3695 | if (pass == 0) | |
3696 | continue; | |
3697 | var = OMP_CLAUSE_DECL (c); | |
3698 | if (TREE_CODE (TREE_TYPE (var)) == POINTER_TYPE | |
3699 | && !is_global_var (var)) | |
3700 | { | |
3701 | new_var = maybe_lookup_decl (var, ctx); | |
3702 | if (new_var == NULL_TREE) | |
3703 | new_var = maybe_lookup_decl_in_outer_ctx (var, ctx); | |
3704 | x = builtin_decl_explicit (BUILT_IN_ASSUME_ALIGNED); | |
37e373c2 JJ |
3705 | tree alarg = omp_clause_aligned_alignment (c); |
3706 | alarg = fold_convert_loc (clause_loc, size_type_node, alarg); | |
3707 | x = build_call_expr_loc (clause_loc, x, 2, new_var, alarg); | |
acf0174b JJ |
3708 | x = fold_convert_loc (clause_loc, TREE_TYPE (new_var), x); |
3709 | x = build2 (MODIFY_EXPR, TREE_TYPE (new_var), new_var, x); | |
3710 | gimplify_and_add (x, ilist); | |
3711 | } | |
3712 | else if (TREE_CODE (TREE_TYPE (var)) == ARRAY_TYPE | |
3713 | && is_global_var (var)) | |
3714 | { | |
3715 | tree ptype = build_pointer_type (TREE_TYPE (var)), t, t2; | |
3716 | new_var = lookup_decl (var, ctx); | |
3717 | t = maybe_lookup_decl_in_outer_ctx (var, ctx); | |
3718 | t = build_fold_addr_expr_loc (clause_loc, t); | |
3719 | t2 = builtin_decl_explicit (BUILT_IN_ASSUME_ALIGNED); | |
37e373c2 JJ |
3720 | tree alarg = omp_clause_aligned_alignment (c); |
3721 | alarg = fold_convert_loc (clause_loc, size_type_node, alarg); | |
3722 | t = build_call_expr_loc (clause_loc, t2, 2, t, alarg); | |
acf0174b | 3723 | t = fold_convert_loc (clause_loc, ptype, t); |
b731b390 | 3724 | x = create_tmp_var (ptype); |
acf0174b JJ |
3725 | t = build2 (MODIFY_EXPR, ptype, x, t); |
3726 | gimplify_and_add (t, ilist); | |
3727 | t = build_simple_mem_ref_loc (clause_loc, x); | |
3728 | SET_DECL_VALUE_EXPR (new_var, t); | |
3729 | DECL_HAS_VALUE_EXPR_P (new_var) = 1; | |
3730 | } | |
3731 | continue; | |
953ff289 DN |
3732 | default: |
3733 | continue; | |
3734 | } | |
3735 | ||
3736 | new_var = var = OMP_CLAUSE_DECL (c); | |
d9a6bd32 JJ |
3737 | if (c_kind == OMP_CLAUSE_REDUCTION && TREE_CODE (var) == MEM_REF) |
3738 | { | |
3739 | var = TREE_OPERAND (var, 0); | |
e01d41e5 JJ |
3740 | if (TREE_CODE (var) == POINTER_PLUS_EXPR) |
3741 | var = TREE_OPERAND (var, 0); | |
d9a6bd32 JJ |
3742 | if (TREE_CODE (var) == INDIRECT_REF |
3743 | || TREE_CODE (var) == ADDR_EXPR) | |
3744 | var = TREE_OPERAND (var, 0); | |
3745 | if (is_variable_sized (var)) | |
3746 | { | |
3747 | gcc_assert (DECL_HAS_VALUE_EXPR_P (var)); | |
3748 | var = DECL_VALUE_EXPR (var); | |
3749 | gcc_assert (TREE_CODE (var) == INDIRECT_REF); | |
3750 | var = TREE_OPERAND (var, 0); | |
3751 | gcc_assert (DECL_P (var)); | |
3752 | } | |
3753 | new_var = var; | |
3754 | } | |
953ff289 DN |
3755 | if (c_kind != OMP_CLAUSE_COPYIN) |
3756 | new_var = lookup_decl (var, ctx); | |
3757 | ||
3758 | if (c_kind == OMP_CLAUSE_SHARED || c_kind == OMP_CLAUSE_COPYIN) | |
3759 | { | |
3760 | if (pass != 0) | |
3761 | continue; | |
3762 | } | |
d9a6bd32 JJ |
3763 | /* C/C++ array section reductions. */ |
3764 | else if (c_kind == OMP_CLAUSE_REDUCTION | |
3765 | && var != OMP_CLAUSE_DECL (c)) | |
953ff289 DN |
3766 | { |
3767 | if (pass == 0) | |
3768 | continue; | |
3769 | ||
e01d41e5 | 3770 | tree bias = TREE_OPERAND (OMP_CLAUSE_DECL (c), 1); |
d9a6bd32 | 3771 | tree orig_var = TREE_OPERAND (OMP_CLAUSE_DECL (c), 0); |
e01d41e5 JJ |
3772 | if (TREE_CODE (orig_var) == POINTER_PLUS_EXPR) |
3773 | { | |
3774 | tree b = TREE_OPERAND (orig_var, 1); | |
3775 | b = maybe_lookup_decl (b, ctx); | |
3776 | if (b == NULL) | |
3777 | { | |
3778 | b = TREE_OPERAND (orig_var, 1); | |
3779 | b = maybe_lookup_decl_in_outer_ctx (b, ctx); | |
3780 | } | |
3781 | if (integer_zerop (bias)) | |
3782 | bias = b; | |
3783 | else | |
3784 | { | |
3785 | bias = fold_convert_loc (clause_loc, | |
3786 | TREE_TYPE (b), bias); | |
3787 | bias = fold_build2_loc (clause_loc, PLUS_EXPR, | |
3788 | TREE_TYPE (b), b, bias); | |
3789 | } | |
3790 | orig_var = TREE_OPERAND (orig_var, 0); | |
3791 | } | |
d9a6bd32 JJ |
3792 | if (TREE_CODE (orig_var) == INDIRECT_REF |
3793 | || TREE_CODE (orig_var) == ADDR_EXPR) | |
3794 | orig_var = TREE_OPERAND (orig_var, 0); | |
3795 | tree d = OMP_CLAUSE_DECL (c); | |
3796 | tree type = TREE_TYPE (d); | |
3797 | gcc_assert (TREE_CODE (type) == ARRAY_TYPE); | |
3798 | tree v = TYPE_MAX_VALUE (TYPE_DOMAIN (type)); | |
3799 | const char *name = get_name (orig_var); | |
3800 | if (TREE_CONSTANT (v)) | |
a68ab351 | 3801 | { |
d9a6bd32 JJ |
3802 | x = create_tmp_var_raw (type, name); |
3803 | gimple_add_tmp_var (x); | |
3804 | TREE_ADDRESSABLE (x) = 1; | |
3805 | x = build_fold_addr_expr_loc (clause_loc, x); | |
3806 | } | |
3807 | else | |
3808 | { | |
3809 | tree atmp | |
3810 | = builtin_decl_explicit (BUILT_IN_ALLOCA_WITH_ALIGN); | |
3811 | tree t = maybe_lookup_decl (v, ctx); | |
3812 | if (t) | |
3813 | v = t; | |
3814 | else | |
3815 | v = maybe_lookup_decl_in_outer_ctx (v, ctx); | |
3816 | gimplify_expr (&v, ilist, NULL, is_gimple_val, fb_rvalue); | |
3817 | t = fold_build2_loc (clause_loc, PLUS_EXPR, | |
3818 | TREE_TYPE (v), v, | |
3819 | build_int_cst (TREE_TYPE (v), 1)); | |
3820 | t = fold_build2_loc (clause_loc, MULT_EXPR, | |
3821 | TREE_TYPE (v), t, | |
3822 | TYPE_SIZE_UNIT (TREE_TYPE (type))); | |
3823 | tree al = size_int (TYPE_ALIGN (TREE_TYPE (type))); | |
3824 | x = build_call_expr_loc (clause_loc, atmp, 2, t, al); | |
3825 | } | |
3826 | ||
3827 | tree ptype = build_pointer_type (TREE_TYPE (type)); | |
3828 | x = fold_convert_loc (clause_loc, ptype, x); | |
3829 | tree y = create_tmp_var (ptype, name); | |
3830 | gimplify_assign (y, x, ilist); | |
3831 | x = y; | |
e01d41e5 JJ |
3832 | tree yb = y; |
3833 | ||
3834 | if (!integer_zerop (bias)) | |
3835 | { | |
48a78aee JJ |
3836 | bias = fold_convert_loc (clause_loc, pointer_sized_int_node, |
3837 | bias); | |
3838 | yb = fold_convert_loc (clause_loc, pointer_sized_int_node, | |
3839 | x); | |
3840 | yb = fold_build2_loc (clause_loc, MINUS_EXPR, | |
3841 | pointer_sized_int_node, yb, bias); | |
3842 | x = fold_convert_loc (clause_loc, TREE_TYPE (x), yb); | |
e01d41e5 JJ |
3843 | yb = create_tmp_var (ptype, name); |
3844 | gimplify_assign (yb, x, ilist); | |
3845 | x = yb; | |
3846 | } | |
3847 | ||
3848 | d = TREE_OPERAND (d, 0); | |
3849 | if (TREE_CODE (d) == POINTER_PLUS_EXPR) | |
3850 | d = TREE_OPERAND (d, 0); | |
3851 | if (TREE_CODE (d) == ADDR_EXPR) | |
d9a6bd32 JJ |
3852 | { |
3853 | if (orig_var != var) | |
3854 | { | |
3855 | gcc_assert (is_variable_sized (orig_var)); | |
3856 | x = fold_convert_loc (clause_loc, TREE_TYPE (new_var), | |
3857 | x); | |
3858 | gimplify_assign (new_var, x, ilist); | |
3859 | tree new_orig_var = lookup_decl (orig_var, ctx); | |
3860 | tree t = build_fold_indirect_ref (new_var); | |
3861 | DECL_IGNORED_P (new_var) = 0; | |
3862 | TREE_THIS_NOTRAP (t); | |
3863 | SET_DECL_VALUE_EXPR (new_orig_var, t); | |
3864 | DECL_HAS_VALUE_EXPR_P (new_orig_var) = 1; | |
3865 | } | |
3866 | else | |
3867 | { | |
3868 | x = build2 (MEM_REF, TREE_TYPE (new_var), x, | |
3869 | build_int_cst (ptype, 0)); | |
3870 | SET_DECL_VALUE_EXPR (new_var, x); | |
3871 | DECL_HAS_VALUE_EXPR_P (new_var) = 1; | |
3872 | } | |
3873 | } | |
3874 | else | |
3875 | { | |
3876 | gcc_assert (orig_var == var); | |
e01d41e5 | 3877 | if (TREE_CODE (d) == INDIRECT_REF) |
d9a6bd32 JJ |
3878 | { |
3879 | x = create_tmp_var (ptype, name); | |
3880 | TREE_ADDRESSABLE (x) = 1; | |
e01d41e5 | 3881 | gimplify_assign (x, yb, ilist); |
d9a6bd32 JJ |
3882 | x = build_fold_addr_expr_loc (clause_loc, x); |
3883 | } | |
3884 | x = fold_convert_loc (clause_loc, TREE_TYPE (new_var), x); | |
3885 | gimplify_assign (new_var, x, ilist); | |
3886 | } | |
3887 | tree y1 = create_tmp_var (ptype, NULL); | |
3888 | gimplify_assign (y1, y, ilist); | |
3889 | tree i2 = NULL_TREE, y2 = NULL_TREE; | |
3890 | tree body2 = NULL_TREE, end2 = NULL_TREE; | |
3891 | tree y3 = NULL_TREE, y4 = NULL_TREE; | |
3892 | if (OMP_CLAUSE_REDUCTION_PLACEHOLDER (c) || is_simd) | |
3893 | { | |
3894 | y2 = create_tmp_var (ptype, NULL); | |
3895 | gimplify_assign (y2, y, ilist); | |
3896 | tree ref = build_outer_var_ref (var, ctx); | |
3897 | /* For ref build_outer_var_ref already performs this. */ | |
e01d41e5 | 3898 | if (TREE_CODE (d) == INDIRECT_REF) |
629b3d75 | 3899 | gcc_assert (omp_is_reference (var)); |
e01d41e5 | 3900 | else if (TREE_CODE (d) == ADDR_EXPR) |
d9a6bd32 | 3901 | ref = build_fold_addr_expr (ref); |
629b3d75 | 3902 | else if (omp_is_reference (var)) |
d9a6bd32 JJ |
3903 | ref = build_fold_addr_expr (ref); |
3904 | ref = fold_convert_loc (clause_loc, ptype, ref); | |
3905 | if (OMP_CLAUSE_REDUCTION_PLACEHOLDER (c) | |
3906 | && OMP_CLAUSE_REDUCTION_OMP_ORIG_REF (c)) | |
3907 | { | |
3908 | y3 = create_tmp_var (ptype, NULL); | |
3909 | gimplify_assign (y3, unshare_expr (ref), ilist); | |
3910 | } | |
3911 | if (is_simd) | |
3912 | { | |
3913 | y4 = create_tmp_var (ptype, NULL); | |
3914 | gimplify_assign (y4, ref, dlist); | |
3915 | } | |
3916 | } | |
3917 | tree i = create_tmp_var (TREE_TYPE (v), NULL); | |
3918 | gimplify_assign (i, build_int_cst (TREE_TYPE (v), 0), ilist); | |
3919 | tree body = create_artificial_label (UNKNOWN_LOCATION); | |
3920 | tree end = create_artificial_label (UNKNOWN_LOCATION); | |
3921 | gimple_seq_add_stmt (ilist, gimple_build_label (body)); | |
3922 | if (y2) | |
3923 | { | |
3924 | i2 = create_tmp_var (TREE_TYPE (v), NULL); | |
3925 | gimplify_assign (i2, build_int_cst (TREE_TYPE (v), 0), dlist); | |
3926 | body2 = create_artificial_label (UNKNOWN_LOCATION); | |
3927 | end2 = create_artificial_label (UNKNOWN_LOCATION); | |
3928 | gimple_seq_add_stmt (dlist, gimple_build_label (body2)); | |
3929 | } | |
3930 | if (OMP_CLAUSE_REDUCTION_PLACEHOLDER (c)) | |
3931 | { | |
3932 | tree placeholder = OMP_CLAUSE_REDUCTION_PLACEHOLDER (c); | |
3933 | tree decl_placeholder | |
3934 | = OMP_CLAUSE_REDUCTION_DECL_PLACEHOLDER (c); | |
3935 | SET_DECL_VALUE_EXPR (decl_placeholder, | |
3936 | build_simple_mem_ref (y1)); | |
3937 | DECL_HAS_VALUE_EXPR_P (decl_placeholder) = 1; | |
3938 | SET_DECL_VALUE_EXPR (placeholder, | |
3939 | y3 ? build_simple_mem_ref (y3) | |
3940 | : error_mark_node); | |
3941 | DECL_HAS_VALUE_EXPR_P (placeholder) = 1; | |
3942 | x = lang_hooks.decls.omp_clause_default_ctor | |
3943 | (c, build_simple_mem_ref (y1), | |
3944 | y3 ? build_simple_mem_ref (y3) : NULL_TREE); | |
3945 | if (x) | |
3946 | gimplify_and_add (x, ilist); | |
3947 | if (OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c)) | |
3948 | { | |
3949 | gimple_seq tseq = OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c); | |
3950 | lower_omp (&tseq, ctx); | |
3951 | gimple_seq_add_seq (ilist, tseq); | |
3952 | } | |
3953 | OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c) = NULL; | |
3954 | if (is_simd) | |
3955 | { | |
3956 | SET_DECL_VALUE_EXPR (decl_placeholder, | |
3957 | build_simple_mem_ref (y2)); | |
3958 | SET_DECL_VALUE_EXPR (placeholder, | |
3959 | build_simple_mem_ref (y4)); | |
3960 | gimple_seq tseq = OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c); | |
3961 | lower_omp (&tseq, ctx); | |
3962 | gimple_seq_add_seq (dlist, tseq); | |
3963 | OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c) = NULL; | |
3964 | } | |
3965 | DECL_HAS_VALUE_EXPR_P (placeholder) = 0; | |
3966 | DECL_HAS_VALUE_EXPR_P (decl_placeholder) = 0; | |
3967 | x = lang_hooks.decls.omp_clause_dtor | |
3968 | (c, build_simple_mem_ref (y2)); | |
3969 | if (x) | |
3970 | { | |
3971 | gimple_seq tseq = NULL; | |
3972 | dtor = x; | |
3973 | gimplify_stmt (&dtor, &tseq); | |
3974 | gimple_seq_add_seq (dlist, tseq); | |
3975 | } | |
3976 | } | |
3977 | else | |
3978 | { | |
3979 | x = omp_reduction_init (c, TREE_TYPE (type)); | |
3980 | enum tree_code code = OMP_CLAUSE_REDUCTION_CODE (c); | |
3981 | ||
3982 | /* reduction(-:var) sums up the partial results, so it | |
3983 | acts identically to reduction(+:var). */ | |
3984 | if (code == MINUS_EXPR) | |
3985 | code = PLUS_EXPR; | |
3986 | ||
3987 | gimplify_assign (build_simple_mem_ref (y1), x, ilist); | |
3988 | if (is_simd) | |
3989 | { | |
3990 | x = build2 (code, TREE_TYPE (type), | |
3991 | build_simple_mem_ref (y4), | |
3992 | build_simple_mem_ref (y2)); | |
3993 | gimplify_assign (build_simple_mem_ref (y4), x, dlist); | |
3994 | } | |
3995 | } | |
3996 | gimple *g | |
3997 | = gimple_build_assign (y1, POINTER_PLUS_EXPR, y1, | |
3998 | TYPE_SIZE_UNIT (TREE_TYPE (type))); | |
3999 | gimple_seq_add_stmt (ilist, g); | |
4000 | if (y3) | |
4001 | { | |
4002 | g = gimple_build_assign (y3, POINTER_PLUS_EXPR, y3, | |
4003 | TYPE_SIZE_UNIT (TREE_TYPE (type))); | |
4004 | gimple_seq_add_stmt (ilist, g); | |
4005 | } | |
4006 | g = gimple_build_assign (i, PLUS_EXPR, i, | |
4007 | build_int_cst (TREE_TYPE (i), 1)); | |
4008 | gimple_seq_add_stmt (ilist, g); | |
4009 | g = gimple_build_cond (LE_EXPR, i, v, body, end); | |
4010 | gimple_seq_add_stmt (ilist, g); | |
4011 | gimple_seq_add_stmt (ilist, gimple_build_label (end)); | |
4012 | if (y2) | |
4013 | { | |
4014 | g = gimple_build_assign (y2, POINTER_PLUS_EXPR, y2, | |
4015 | TYPE_SIZE_UNIT (TREE_TYPE (type))); | |
4016 | gimple_seq_add_stmt (dlist, g); | |
4017 | if (y4) | |
4018 | { | |
4019 | g = gimple_build_assign | |
4020 | (y4, POINTER_PLUS_EXPR, y4, | |
4021 | TYPE_SIZE_UNIT (TREE_TYPE (type))); | |
4022 | gimple_seq_add_stmt (dlist, g); | |
4023 | } | |
4024 | g = gimple_build_assign (i2, PLUS_EXPR, i2, | |
4025 | build_int_cst (TREE_TYPE (i2), 1)); | |
4026 | gimple_seq_add_stmt (dlist, g); | |
4027 | g = gimple_build_cond (LE_EXPR, i2, v, body2, end2); | |
4028 | gimple_seq_add_stmt (dlist, g); | |
4029 | gimple_seq_add_stmt (dlist, gimple_build_label (end2)); | |
4030 | } | |
4031 | continue; | |
4032 | } | |
4033 | else if (is_variable_sized (var)) | |
4034 | { | |
4035 | /* For variable sized types, we need to allocate the | |
4036 | actual storage here. Call alloca and store the | |
4037 | result in the pointer decl that we created elsewhere. */ | |
4038 | if (pass == 0) | |
4039 | continue; | |
4040 | ||
4041 | if (c_kind != OMP_CLAUSE_FIRSTPRIVATE || !is_task_ctx (ctx)) | |
4042 | { | |
4043 | gcall *stmt; | |
4044 | tree tmp, atmp; | |
4045 | ||
4046 | ptr = DECL_VALUE_EXPR (new_var); | |
4047 | gcc_assert (TREE_CODE (ptr) == INDIRECT_REF); | |
4048 | ptr = TREE_OPERAND (ptr, 0); | |
a68ab351 JJ |
4049 | gcc_assert (DECL_P (ptr)); |
4050 | x = TYPE_SIZE_UNIT (TREE_TYPE (new_var)); | |
726a989a RB |
4051 | |
4052 | /* void *tmp = __builtin_alloca */ | |
d9a6bd32 JJ |
4053 | atmp = builtin_decl_explicit (BUILT_IN_ALLOCA_WITH_ALIGN); |
4054 | stmt = gimple_build_call (atmp, 2, x, | |
4055 | size_int (DECL_ALIGN (var))); | |
b731b390 | 4056 | tmp = create_tmp_var_raw (ptr_type_node); |
726a989a RB |
4057 | gimple_add_tmp_var (tmp); |
4058 | gimple_call_set_lhs (stmt, tmp); | |
4059 | ||
4060 | gimple_seq_add_stmt (ilist, stmt); | |
4061 | ||
db3927fb | 4062 | x = fold_convert_loc (clause_loc, TREE_TYPE (ptr), tmp); |
726a989a | 4063 | gimplify_assign (ptr, x, ilist); |
a68ab351 | 4064 | } |
953ff289 | 4065 | } |
629b3d75 | 4066 | else if (omp_is_reference (var)) |
953ff289 | 4067 | { |
50674e96 DN |
4068 | /* For references that are being privatized for Fortran, |
4069 | allocate new backing storage for the new pointer | |
4070 | variable. This allows us to avoid changing all the | |
4071 | code that expects a pointer to something that expects | |
acf0174b | 4072 | a direct variable. */ |
953ff289 DN |
4073 | if (pass == 0) |
4074 | continue; | |
4075 | ||
4076 | x = TYPE_SIZE_UNIT (TREE_TYPE (TREE_TYPE (new_var))); | |
a68ab351 JJ |
4077 | if (c_kind == OMP_CLAUSE_FIRSTPRIVATE && is_task_ctx (ctx)) |
4078 | { | |
4079 | x = build_receiver_ref (var, false, ctx); | |
db3927fb | 4080 | x = build_fold_addr_expr_loc (clause_loc, x); |
a68ab351 JJ |
4081 | } |
4082 | else if (TREE_CONSTANT (x)) | |
953ff289 | 4083 | { |
decaaec8 JJ |
4084 | /* For reduction in SIMD loop, defer adding the |
4085 | initialization of the reference, because if we decide | |
4086 | to use SIMD array for it, the initilization could cause | |
4087 | expansion ICE. */ | |
4088 | if (c_kind == OMP_CLAUSE_REDUCTION && is_simd) | |
4ceffa27 JJ |
4089 | x = NULL_TREE; |
4090 | else | |
4091 | { | |
4ceffa27 | 4092 | x = create_tmp_var_raw (TREE_TYPE (TREE_TYPE (new_var)), |
d9a6bd32 | 4093 | get_name (var)); |
4ceffa27 JJ |
4094 | gimple_add_tmp_var (x); |
4095 | TREE_ADDRESSABLE (x) = 1; | |
4096 | x = build_fold_addr_expr_loc (clause_loc, x); | |
4097 | } | |
953ff289 DN |
4098 | } |
4099 | else | |
4100 | { | |
d9a6bd32 JJ |
4101 | tree atmp |
4102 | = builtin_decl_explicit (BUILT_IN_ALLOCA_WITH_ALIGN); | |
4103 | tree rtype = TREE_TYPE (TREE_TYPE (new_var)); | |
4104 | tree al = size_int (TYPE_ALIGN (rtype)); | |
4105 | x = build_call_expr_loc (clause_loc, atmp, 2, x, al); | |
953ff289 DN |
4106 | } |
4107 | ||
4ceffa27 JJ |
4108 | if (x) |
4109 | { | |
4110 | x = fold_convert_loc (clause_loc, TREE_TYPE (new_var), x); | |
4111 | gimplify_assign (new_var, x, ilist); | |
4112 | } | |
953ff289 | 4113 | |
70f34814 | 4114 | new_var = build_simple_mem_ref_loc (clause_loc, new_var); |
953ff289 DN |
4115 | } |
4116 | else if (c_kind == OMP_CLAUSE_REDUCTION | |
4117 | && OMP_CLAUSE_REDUCTION_PLACEHOLDER (c)) | |
4118 | { | |
4119 | if (pass == 0) | |
4120 | continue; | |
4121 | } | |
4122 | else if (pass != 0) | |
4123 | continue; | |
4124 | ||
aaf46ef9 | 4125 | switch (OMP_CLAUSE_CODE (c)) |
953ff289 DN |
4126 | { |
4127 | case OMP_CLAUSE_SHARED: | |
acf0174b JJ |
4128 | /* Ignore shared directives in teams construct. */ |
4129 | if (gimple_code (ctx->stmt) == GIMPLE_OMP_TEAMS) | |
4130 | continue; | |
8ca5b2a2 JJ |
4131 | /* Shared global vars are just accessed directly. */ |
4132 | if (is_global_var (new_var)) | |
4133 | break; | |
d9a6bd32 JJ |
4134 | /* For taskloop firstprivate/lastprivate, represented |
4135 | as firstprivate and shared clause on the task, new_var | |
4136 | is the firstprivate var. */ | |
4137 | if (OMP_CLAUSE_SHARED_FIRSTPRIVATE (c)) | |
4138 | break; | |
953ff289 DN |
4139 | /* Set up the DECL_VALUE_EXPR for shared variables now. This |
4140 | needs to be delayed until after fixup_child_record_type so | |
4141 | that we get the correct type during the dereference. */ | |
7c8f7639 | 4142 | by_ref = use_pointer_for_field (var, ctx); |
953ff289 DN |
4143 | x = build_receiver_ref (var, by_ref, ctx); |
4144 | SET_DECL_VALUE_EXPR (new_var, x); | |
4145 | DECL_HAS_VALUE_EXPR_P (new_var) = 1; | |
4146 | ||
4147 | /* ??? If VAR is not passed by reference, and the variable | |
4148 | hasn't been initialized yet, then we'll get a warning for | |
4149 | the store into the omp_data_s structure. Ideally, we'd be | |
b8698a0f | 4150 | able to notice this and not store anything at all, but |
953ff289 DN |
4151 | we're generating code too early. Suppress the warning. */ |
4152 | if (!by_ref) | |
4153 | TREE_NO_WARNING (var) = 1; | |
4154 | break; | |
4155 | ||
4156 | case OMP_CLAUSE_LASTPRIVATE: | |
4157 | if (OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE (c)) | |
4158 | break; | |
4159 | /* FALLTHRU */ | |
4160 | ||
4161 | case OMP_CLAUSE_PRIVATE: | |
a68ab351 JJ |
4162 | if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_PRIVATE) |
4163 | x = build_outer_var_ref (var, ctx); | |
4164 | else if (OMP_CLAUSE_PRIVATE_OUTER_REF (c)) | |
4165 | { | |
4166 | if (is_task_ctx (ctx)) | |
4167 | x = build_receiver_ref (var, false, ctx); | |
4168 | else | |
c39dad64 | 4169 | x = build_outer_var_ref (var, ctx, OMP_CLAUSE_PRIVATE); |
a68ab351 JJ |
4170 | } |
4171 | else | |
4172 | x = NULL; | |
74bf76ed | 4173 | do_private: |
acf0174b | 4174 | tree nx; |
d9a6bd32 JJ |
4175 | nx = lang_hooks.decls.omp_clause_default_ctor |
4176 | (c, unshare_expr (new_var), x); | |
74bf76ed JJ |
4177 | if (is_simd) |
4178 | { | |
4179 | tree y = lang_hooks.decls.omp_clause_dtor (c, new_var); | |
acf0174b | 4180 | if ((TREE_ADDRESSABLE (new_var) || nx || y |
74bf76ed | 4181 | || OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LASTPRIVATE) |
6943af07 AM |
4182 | && lower_rec_simd_input_clauses (new_var, ctx, &sctx, |
4183 | ivar, lvar)) | |
74bf76ed | 4184 | { |
acf0174b | 4185 | if (nx) |
74bf76ed JJ |
4186 | x = lang_hooks.decls.omp_clause_default_ctor |
4187 | (c, unshare_expr (ivar), x); | |
acf0174b | 4188 | if (nx && x) |
74bf76ed JJ |
4189 | gimplify_and_add (x, &llist[0]); |
4190 | if (y) | |
4191 | { | |
4192 | y = lang_hooks.decls.omp_clause_dtor (c, ivar); | |
4193 | if (y) | |
4194 | { | |
4195 | gimple_seq tseq = NULL; | |
4196 | ||
4197 | dtor = y; | |
4198 | gimplify_stmt (&dtor, &tseq); | |
4199 | gimple_seq_add_seq (&llist[1], tseq); | |
4200 | } | |
4201 | } | |
4202 | break; | |
4203 | } | |
4204 | } | |
acf0174b JJ |
4205 | if (nx) |
4206 | gimplify_and_add (nx, ilist); | |
953ff289 DN |
4207 | /* FALLTHRU */ |
4208 | ||
4209 | do_dtor: | |
4210 | x = lang_hooks.decls.omp_clause_dtor (c, new_var); | |
4211 | if (x) | |
4212 | { | |
726a989a RB |
4213 | gimple_seq tseq = NULL; |
4214 | ||
953ff289 | 4215 | dtor = x; |
726a989a | 4216 | gimplify_stmt (&dtor, &tseq); |
355a7673 | 4217 | gimple_seq_add_seq (dlist, tseq); |
953ff289 DN |
4218 | } |
4219 | break; | |
4220 | ||
74bf76ed JJ |
4221 | case OMP_CLAUSE_LINEAR: |
4222 | if (!OMP_CLAUSE_LINEAR_NO_COPYIN (c)) | |
4223 | goto do_firstprivate; | |
4224 | if (OMP_CLAUSE_LINEAR_NO_COPYOUT (c)) | |
4225 | x = NULL; | |
4226 | else | |
4227 | x = build_outer_var_ref (var, ctx); | |
4228 | goto do_private; | |
4229 | ||
953ff289 | 4230 | case OMP_CLAUSE_FIRSTPRIVATE: |
a68ab351 JJ |
4231 | if (is_task_ctx (ctx)) |
4232 | { | |
629b3d75 | 4233 | if (omp_is_reference (var) || is_variable_sized (var)) |
a68ab351 JJ |
4234 | goto do_dtor; |
4235 | else if (is_global_var (maybe_lookup_decl_in_outer_ctx (var, | |
4236 | ctx)) | |
4237 | || use_pointer_for_field (var, NULL)) | |
4238 | { | |
4239 | x = build_receiver_ref (var, false, ctx); | |
4240 | SET_DECL_VALUE_EXPR (new_var, x); | |
4241 | DECL_HAS_VALUE_EXPR_P (new_var) = 1; | |
4242 | goto do_dtor; | |
4243 | } | |
4244 | } | |
74bf76ed | 4245 | do_firstprivate: |
953ff289 | 4246 | x = build_outer_var_ref (var, ctx); |
74bf76ed JJ |
4247 | if (is_simd) |
4248 | { | |
acf0174b JJ |
4249 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LINEAR |
4250 | && gimple_omp_for_combined_into_p (ctx->stmt)) | |
4251 | { | |
da6f124d JJ |
4252 | tree t = OMP_CLAUSE_LINEAR_STEP (c); |
4253 | tree stept = TREE_TYPE (t); | |
629b3d75 | 4254 | tree ct = omp_find_clause (clauses, |
da6f124d JJ |
4255 | OMP_CLAUSE__LOOPTEMP_); |
4256 | gcc_assert (ct); | |
4257 | tree l = OMP_CLAUSE_DECL (ct); | |
56ad0e38 JJ |
4258 | tree n1 = fd->loop.n1; |
4259 | tree step = fd->loop.step; | |
4260 | tree itype = TREE_TYPE (l); | |
4261 | if (POINTER_TYPE_P (itype)) | |
4262 | itype = signed_type_for (itype); | |
4263 | l = fold_build2 (MINUS_EXPR, itype, l, n1); | |
4264 | if (TYPE_UNSIGNED (itype) | |
4265 | && fd->loop.cond_code == GT_EXPR) | |
4266 | l = fold_build2 (TRUNC_DIV_EXPR, itype, | |
4267 | fold_build1 (NEGATE_EXPR, itype, l), | |
4268 | fold_build1 (NEGATE_EXPR, | |
4269 | itype, step)); | |
4270 | else | |
4271 | l = fold_build2 (TRUNC_DIV_EXPR, itype, l, step); | |
acf0174b JJ |
4272 | t = fold_build2 (MULT_EXPR, stept, |
4273 | fold_convert (stept, l), t); | |
da6f124d JJ |
4274 | |
4275 | if (OMP_CLAUSE_LINEAR_ARRAY (c)) | |
4276 | { | |
4277 | x = lang_hooks.decls.omp_clause_linear_ctor | |
4278 | (c, new_var, x, t); | |
4279 | gimplify_and_add (x, ilist); | |
4280 | goto do_dtor; | |
4281 | } | |
4282 | ||
acf0174b JJ |
4283 | if (POINTER_TYPE_P (TREE_TYPE (x))) |
4284 | x = fold_build2 (POINTER_PLUS_EXPR, | |
4285 | TREE_TYPE (x), x, t); | |
4286 | else | |
4287 | x = fold_build2 (PLUS_EXPR, TREE_TYPE (x), x, t); | |
4288 | } | |
4289 | ||
74bf76ed JJ |
4290 | if ((OMP_CLAUSE_CODE (c) != OMP_CLAUSE_LINEAR |
4291 | || TREE_ADDRESSABLE (new_var)) | |
6943af07 AM |
4292 | && lower_rec_simd_input_clauses (new_var, ctx, &sctx, |
4293 | ivar, lvar)) | |
74bf76ed JJ |
4294 | { |
4295 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LINEAR) | |
4296 | { | |
b731b390 | 4297 | tree iv = create_tmp_var (TREE_TYPE (new_var)); |
74bf76ed JJ |
4298 | x = lang_hooks.decls.omp_clause_copy_ctor (c, iv, x); |
4299 | gimplify_and_add (x, ilist); | |
4300 | gimple_stmt_iterator gsi | |
4301 | = gsi_start_1 (gimple_omp_body_ptr (ctx->stmt)); | |
538dd0b7 | 4302 | gassign *g |
74bf76ed JJ |
4303 | = gimple_build_assign (unshare_expr (lvar), iv); |
4304 | gsi_insert_before_without_update (&gsi, g, | |
4305 | GSI_SAME_STMT); | |
da6f124d | 4306 | tree t = OMP_CLAUSE_LINEAR_STEP (c); |
74bf76ed JJ |
4307 | enum tree_code code = PLUS_EXPR; |
4308 | if (POINTER_TYPE_P (TREE_TYPE (new_var))) | |
4309 | code = POINTER_PLUS_EXPR; | |
0d0e4a03 | 4310 | g = gimple_build_assign (iv, code, iv, t); |
74bf76ed JJ |
4311 | gsi_insert_before_without_update (&gsi, g, |
4312 | GSI_SAME_STMT); | |
4313 | break; | |
4314 | } | |
4315 | x = lang_hooks.decls.omp_clause_copy_ctor | |
4316 | (c, unshare_expr (ivar), x); | |
4317 | gimplify_and_add (x, &llist[0]); | |
4318 | x = lang_hooks.decls.omp_clause_dtor (c, ivar); | |
4319 | if (x) | |
4320 | { | |
4321 | gimple_seq tseq = NULL; | |
4322 | ||
4323 | dtor = x; | |
4324 | gimplify_stmt (&dtor, &tseq); | |
4325 | gimple_seq_add_seq (&llist[1], tseq); | |
4326 | } | |
4327 | break; | |
4328 | } | |
4329 | } | |
d9a6bd32 JJ |
4330 | x = lang_hooks.decls.omp_clause_copy_ctor |
4331 | (c, unshare_expr (new_var), x); | |
953ff289 DN |
4332 | gimplify_and_add (x, ilist); |
4333 | goto do_dtor; | |
953ff289 | 4334 | |
acf0174b | 4335 | case OMP_CLAUSE__LOOPTEMP_: |
d9a6bd32 | 4336 | gcc_assert (is_taskreg_ctx (ctx)); |
acf0174b JJ |
4337 | x = build_outer_var_ref (var, ctx); |
4338 | x = build2 (MODIFY_EXPR, TREE_TYPE (new_var), new_var, x); | |
4339 | gimplify_and_add (x, ilist); | |
4340 | break; | |
4341 | ||
953ff289 | 4342 | case OMP_CLAUSE_COPYIN: |
7c8f7639 | 4343 | by_ref = use_pointer_for_field (var, NULL); |
953ff289 DN |
4344 | x = build_receiver_ref (var, by_ref, ctx); |
4345 | x = lang_hooks.decls.omp_clause_assign_op (c, new_var, x); | |
4346 | append_to_statement_list (x, ©in_seq); | |
4347 | copyin_by_ref |= by_ref; | |
4348 | break; | |
4349 | ||
4350 | case OMP_CLAUSE_REDUCTION: | |
e5014671 NS |
4351 | /* OpenACC reductions are initialized using the |
4352 | GOACC_REDUCTION internal function. */ | |
4353 | if (is_gimple_omp_oacc (ctx->stmt)) | |
4354 | break; | |
953ff289 DN |
4355 | if (OMP_CLAUSE_REDUCTION_PLACEHOLDER (c)) |
4356 | { | |
a68ab351 | 4357 | tree placeholder = OMP_CLAUSE_REDUCTION_PLACEHOLDER (c); |
355fe088 | 4358 | gimple *tseq; |
a68ab351 JJ |
4359 | x = build_outer_var_ref (var, ctx); |
4360 | ||
629b3d75 | 4361 | if (omp_is_reference (var) |
acf0174b JJ |
4362 | && !useless_type_conversion_p (TREE_TYPE (placeholder), |
4363 | TREE_TYPE (x))) | |
db3927fb | 4364 | x = build_fold_addr_expr_loc (clause_loc, x); |
a68ab351 JJ |
4365 | SET_DECL_VALUE_EXPR (placeholder, x); |
4366 | DECL_HAS_VALUE_EXPR_P (placeholder) = 1; | |
acf0174b | 4367 | tree new_vard = new_var; |
629b3d75 | 4368 | if (omp_is_reference (var)) |
acf0174b JJ |
4369 | { |
4370 | gcc_assert (TREE_CODE (new_var) == MEM_REF); | |
4371 | new_vard = TREE_OPERAND (new_var, 0); | |
4372 | gcc_assert (DECL_P (new_vard)); | |
4373 | } | |
74bf76ed | 4374 | if (is_simd |
6943af07 AM |
4375 | && lower_rec_simd_input_clauses (new_var, ctx, &sctx, |
4376 | ivar, lvar)) | |
74bf76ed | 4377 | { |
acf0174b JJ |
4378 | if (new_vard == new_var) |
4379 | { | |
4380 | gcc_assert (DECL_VALUE_EXPR (new_var) == lvar); | |
4381 | SET_DECL_VALUE_EXPR (new_var, ivar); | |
4382 | } | |
4383 | else | |
4384 | { | |
4385 | SET_DECL_VALUE_EXPR (new_vard, | |
4386 | build_fold_addr_expr (ivar)); | |
4387 | DECL_HAS_VALUE_EXPR_P (new_vard) = 1; | |
4388 | } | |
4389 | x = lang_hooks.decls.omp_clause_default_ctor | |
4390 | (c, unshare_expr (ivar), | |
4391 | build_outer_var_ref (var, ctx)); | |
4392 | if (x) | |
4393 | gimplify_and_add (x, &llist[0]); | |
4394 | if (OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c)) | |
4395 | { | |
4396 | tseq = OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c); | |
4397 | lower_omp (&tseq, ctx); | |
4398 | gimple_seq_add_seq (&llist[0], tseq); | |
4399 | } | |
4400 | OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c) = NULL; | |
4401 | tseq = OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c); | |
4402 | lower_omp (&tseq, ctx); | |
4403 | gimple_seq_add_seq (&llist[1], tseq); | |
4404 | OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c) = NULL; | |
4405 | DECL_HAS_VALUE_EXPR_P (placeholder) = 0; | |
4406 | if (new_vard == new_var) | |
4407 | SET_DECL_VALUE_EXPR (new_var, lvar); | |
4408 | else | |
4409 | SET_DECL_VALUE_EXPR (new_vard, | |
4410 | build_fold_addr_expr (lvar)); | |
4411 | x = lang_hooks.decls.omp_clause_dtor (c, ivar); | |
4412 | if (x) | |
4413 | { | |
4414 | tseq = NULL; | |
4415 | dtor = x; | |
4416 | gimplify_stmt (&dtor, &tseq); | |
4417 | gimple_seq_add_seq (&llist[1], tseq); | |
4418 | } | |
4419 | break; | |
4420 | } | |
4ceffa27 JJ |
4421 | /* If this is a reference to constant size reduction var |
4422 | with placeholder, we haven't emitted the initializer | |
4423 | for it because it is undesirable if SIMD arrays are used. | |
4424 | But if they aren't used, we need to emit the deferred | |
4425 | initialization now. */ | |
629b3d75 | 4426 | else if (omp_is_reference (var) && is_simd) |
decaaec8 | 4427 | handle_simd_reference (clause_loc, new_vard, ilist); |
acf0174b | 4428 | x = lang_hooks.decls.omp_clause_default_ctor |
92d28cbb JJ |
4429 | (c, unshare_expr (new_var), |
4430 | build_outer_var_ref (var, ctx)); | |
acf0174b JJ |
4431 | if (x) |
4432 | gimplify_and_add (x, ilist); | |
4433 | if (OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c)) | |
4434 | { | |
4435 | tseq = OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c); | |
4436 | lower_omp (&tseq, ctx); | |
4437 | gimple_seq_add_seq (ilist, tseq); | |
4438 | } | |
4439 | OMP_CLAUSE_REDUCTION_GIMPLE_INIT (c) = NULL; | |
4440 | if (is_simd) | |
4441 | { | |
4442 | tseq = OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c); | |
4443 | lower_omp (&tseq, ctx); | |
4444 | gimple_seq_add_seq (dlist, tseq); | |
4445 | OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c) = NULL; | |
4446 | } | |
4447 | DECL_HAS_VALUE_EXPR_P (placeholder) = 0; | |
4448 | goto do_dtor; | |
4449 | } | |
4450 | else | |
4451 | { | |
4452 | x = omp_reduction_init (c, TREE_TYPE (new_var)); | |
4453 | gcc_assert (TREE_CODE (TREE_TYPE (new_var)) != ARRAY_TYPE); | |
e9792e1d JJ |
4454 | enum tree_code code = OMP_CLAUSE_REDUCTION_CODE (c); |
4455 | ||
4456 | /* reduction(-:var) sums up the partial results, so it | |
4457 | acts identically to reduction(+:var). */ | |
4458 | if (code == MINUS_EXPR) | |
4459 | code = PLUS_EXPR; | |
4460 | ||
decaaec8 | 4461 | tree new_vard = new_var; |
629b3d75 | 4462 | if (is_simd && omp_is_reference (var)) |
decaaec8 JJ |
4463 | { |
4464 | gcc_assert (TREE_CODE (new_var) == MEM_REF); | |
4465 | new_vard = TREE_OPERAND (new_var, 0); | |
4466 | gcc_assert (DECL_P (new_vard)); | |
4467 | } | |
acf0174b | 4468 | if (is_simd |
6943af07 AM |
4469 | && lower_rec_simd_input_clauses (new_var, ctx, &sctx, |
4470 | ivar, lvar)) | |
acf0174b | 4471 | { |
acf0174b JJ |
4472 | tree ref = build_outer_var_ref (var, ctx); |
4473 | ||
4474 | gimplify_assign (unshare_expr (ivar), x, &llist[0]); | |
4475 | ||
6943af07 | 4476 | if (sctx.is_simt) |
9669b00b AM |
4477 | { |
4478 | if (!simt_lane) | |
4479 | simt_lane = create_tmp_var (unsigned_type_node); | |
4480 | x = build_call_expr_internal_loc | |
4481 | (UNKNOWN_LOCATION, IFN_GOMP_SIMT_XCHG_BFLY, | |
4482 | TREE_TYPE (ivar), 2, ivar, simt_lane); | |
4483 | x = build2 (code, TREE_TYPE (ivar), ivar, x); | |
4484 | gimplify_assign (ivar, x, &llist[2]); | |
4485 | } | |
acf0174b | 4486 | x = build2 (code, TREE_TYPE (ref), ref, ivar); |
74bf76ed JJ |
4487 | ref = build_outer_var_ref (var, ctx); |
4488 | gimplify_assign (ref, x, &llist[1]); | |
decaaec8 JJ |
4489 | |
4490 | if (new_vard != new_var) | |
4491 | { | |
4492 | SET_DECL_VALUE_EXPR (new_vard, | |
4493 | build_fold_addr_expr (lvar)); | |
4494 | DECL_HAS_VALUE_EXPR_P (new_vard) = 1; | |
4495 | } | |
74bf76ed JJ |
4496 | } |
4497 | else | |
4498 | { | |
629b3d75 | 4499 | if (omp_is_reference (var) && is_simd) |
decaaec8 | 4500 | handle_simd_reference (clause_loc, new_vard, ilist); |
74bf76ed JJ |
4501 | gimplify_assign (new_var, x, ilist); |
4502 | if (is_simd) | |
e9792e1d JJ |
4503 | { |
4504 | tree ref = build_outer_var_ref (var, ctx); | |
4505 | ||
4506 | x = build2 (code, TREE_TYPE (ref), ref, new_var); | |
4507 | ref = build_outer_var_ref (var, ctx); | |
4508 | gimplify_assign (ref, x, dlist); | |
4509 | } | |
74bf76ed | 4510 | } |
953ff289 DN |
4511 | } |
4512 | break; | |
4513 | ||
4514 | default: | |
4515 | gcc_unreachable (); | |
4516 | } | |
4517 | } | |
4518 | } | |
4519 | ||
9d2f08ab | 4520 | if (known_eq (sctx.max_vf, 1U)) |
0c6b03b5 AM |
4521 | sctx.is_simt = false; |
4522 | ||
4523 | if (sctx.lane || sctx.is_simt) | |
74bf76ed | 4524 | { |
0c6b03b5 | 4525 | uid = create_tmp_var (ptr_type_node, "simduid"); |
8928eff3 JJ |
4526 | /* Don't want uninit warnings on simduid, it is always uninitialized, |
4527 | but we use it not for the value, but for the DECL_UID only. */ | |
4528 | TREE_NO_WARNING (uid) = 1; | |
0c6b03b5 AM |
4529 | c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE__SIMDUID_); |
4530 | OMP_CLAUSE__SIMDUID__DECL (c) = uid; | |
4531 | OMP_CLAUSE_CHAIN (c) = gimple_omp_for_clauses (ctx->stmt); | |
4532 | gimple_omp_for_set_clauses (ctx->stmt, c); | |
4533 | } | |
4534 | /* Emit calls denoting privatized variables and initializing a pointer to | |
4535 | structure that holds private variables as fields after ompdevlow pass. */ | |
4536 | if (sctx.is_simt) | |
4537 | { | |
4538 | sctx.simt_eargs[0] = uid; | |
4539 | gimple *g | |
4540 | = gimple_build_call_internal_vec (IFN_GOMP_SIMT_ENTER, sctx.simt_eargs); | |
4541 | gimple_call_set_lhs (g, uid); | |
4542 | gimple_seq_add_stmt (ilist, g); | |
4543 | sctx.simt_eargs.release (); | |
4544 | ||
4545 | simtrec = create_tmp_var (ptr_type_node, ".omp_simt"); | |
4546 | g = gimple_build_call_internal (IFN_GOMP_SIMT_ENTER_ALLOC, 1, uid); | |
4547 | gimple_call_set_lhs (g, simtrec); | |
4548 | gimple_seq_add_stmt (ilist, g); | |
4549 | } | |
4550 | if (sctx.lane) | |
4551 | { | |
355fe088 | 4552 | gimple *g |
74bf76ed | 4553 | = gimple_build_call_internal (IFN_GOMP_SIMD_LANE, 1, uid); |
6943af07 | 4554 | gimple_call_set_lhs (g, sctx.lane); |
74bf76ed JJ |
4555 | gimple_stmt_iterator gsi = gsi_start_1 (gimple_omp_body_ptr (ctx->stmt)); |
4556 | gsi_insert_before_without_update (&gsi, g, GSI_SAME_STMT); | |
6943af07 | 4557 | g = gimple_build_assign (sctx.lane, INTEGER_CST, |
0d0e4a03 | 4558 | build_int_cst (unsigned_type_node, 0)); |
74bf76ed | 4559 | gimple_seq_add_stmt (ilist, g); |
9669b00b AM |
4560 | /* Emit reductions across SIMT lanes in log_2(simt_vf) steps. */ |
4561 | if (llist[2]) | |
4562 | { | |
4563 | tree simt_vf = create_tmp_var (unsigned_type_node); | |
4564 | g = gimple_build_call_internal (IFN_GOMP_SIMT_VF, 0); | |
4565 | gimple_call_set_lhs (g, simt_vf); | |
4566 | gimple_seq_add_stmt (dlist, g); | |
4567 | ||
4568 | tree t = build_int_cst (unsigned_type_node, 1); | |
4569 | g = gimple_build_assign (simt_lane, INTEGER_CST, t); | |
4570 | gimple_seq_add_stmt (dlist, g); | |
4571 | ||
4572 | t = build_int_cst (unsigned_type_node, 0); | |
6943af07 | 4573 | g = gimple_build_assign (sctx.idx, INTEGER_CST, t); |
9669b00b AM |
4574 | gimple_seq_add_stmt (dlist, g); |
4575 | ||
4576 | tree body = create_artificial_label (UNKNOWN_LOCATION); | |
4577 | tree header = create_artificial_label (UNKNOWN_LOCATION); | |
4578 | tree end = create_artificial_label (UNKNOWN_LOCATION); | |
4579 | gimple_seq_add_stmt (dlist, gimple_build_goto (header)); | |
4580 | gimple_seq_add_stmt (dlist, gimple_build_label (body)); | |
4581 | ||
4582 | gimple_seq_add_seq (dlist, llist[2]); | |
4583 | ||
4584 | g = gimple_build_assign (simt_lane, LSHIFT_EXPR, simt_lane, integer_one_node); | |
4585 | gimple_seq_add_stmt (dlist, g); | |
4586 | ||
4587 | gimple_seq_add_stmt (dlist, gimple_build_label (header)); | |
4588 | g = gimple_build_cond (LT_EXPR, simt_lane, simt_vf, body, end); | |
4589 | gimple_seq_add_stmt (dlist, g); | |
4590 | ||
4591 | gimple_seq_add_stmt (dlist, gimple_build_label (end)); | |
4592 | } | |
74bf76ed JJ |
4593 | for (int i = 0; i < 2; i++) |
4594 | if (llist[i]) | |
4595 | { | |
b731b390 | 4596 | tree vf = create_tmp_var (unsigned_type_node); |
74bf76ed JJ |
4597 | g = gimple_build_call_internal (IFN_GOMP_SIMD_VF, 1, uid); |
4598 | gimple_call_set_lhs (g, vf); | |
4599 | gimple_seq *seq = i == 0 ? ilist : dlist; | |
4600 | gimple_seq_add_stmt (seq, g); | |
4601 | tree t = build_int_cst (unsigned_type_node, 0); | |
6943af07 | 4602 | g = gimple_build_assign (sctx.idx, INTEGER_CST, t); |
74bf76ed JJ |
4603 | gimple_seq_add_stmt (seq, g); |
4604 | tree body = create_artificial_label (UNKNOWN_LOCATION); | |
4605 | tree header = create_artificial_label (UNKNOWN_LOCATION); | |
4606 | tree end = create_artificial_label (UNKNOWN_LOCATION); | |
4607 | gimple_seq_add_stmt (seq, gimple_build_goto (header)); | |
4608 | gimple_seq_add_stmt (seq, gimple_build_label (body)); | |
4609 | gimple_seq_add_seq (seq, llist[i]); | |
4610 | t = build_int_cst (unsigned_type_node, 1); | |
6943af07 | 4611 | g = gimple_build_assign (sctx.idx, PLUS_EXPR, sctx.idx, t); |
74bf76ed JJ |
4612 | gimple_seq_add_stmt (seq, g); |
4613 | gimple_seq_add_stmt (seq, gimple_build_label (header)); | |
6943af07 | 4614 | g = gimple_build_cond (LT_EXPR, sctx.idx, vf, body, end); |
74bf76ed JJ |
4615 | gimple_seq_add_stmt (seq, g); |
4616 | gimple_seq_add_stmt (seq, gimple_build_label (end)); | |
4617 | } | |
4618 | } | |
0c6b03b5 AM |
4619 | if (sctx.is_simt) |
4620 | { | |
4621 | gimple_seq_add_seq (dlist, sctx.simt_dlist); | |
4622 | gimple *g | |
4623 | = gimple_build_call_internal (IFN_GOMP_SIMT_EXIT, 1, simtrec); | |
4624 | gimple_seq_add_stmt (dlist, g); | |
4625 | } | |
74bf76ed | 4626 | |
953ff289 DN |
4627 | /* The copyin sequence is not to be executed by the main thread, since |
4628 | that would result in self-copies. Perhaps not visible to scalars, | |
4629 | but it certainly is to C++ operator=. */ | |
4630 | if (copyin_seq) | |
4631 | { | |
e79983f4 MM |
4632 | x = build_call_expr (builtin_decl_explicit (BUILT_IN_OMP_GET_THREAD_NUM), |
4633 | 0); | |
953ff289 DN |
4634 | x = build2 (NE_EXPR, boolean_type_node, x, |
4635 | build_int_cst (TREE_TYPE (x), 0)); | |
4636 | x = build3 (COND_EXPR, void_type_node, x, copyin_seq, NULL); | |
4637 | gimplify_and_add (x, ilist); | |
4638 | } | |
4639 | ||
4640 | /* If any copyin variable is passed by reference, we must ensure the | |
4641 | master thread doesn't modify it before it is copied over in all | |
8ca5b2a2 JJ |
4642 | threads. Similarly for variables in both firstprivate and |
4643 | lastprivate clauses we need to ensure the lastprivate copying | |
acf0174b JJ |
4644 | happens after firstprivate copying in all threads. And similarly |
4645 | for UDRs if initializer expression refers to omp_orig. */ | |
4646 | if (copyin_by_ref || lastprivate_firstprivate || reduction_omp_orig_ref) | |
74bf76ed JJ |
4647 | { |
4648 | /* Don't add any barrier for #pragma omp simd or | |
4649 | #pragma omp distribute. */ | |
4650 | if (gimple_code (ctx->stmt) != GIMPLE_OMP_FOR | |
e2110f8f | 4651 | || gimple_omp_for_kind (ctx->stmt) == GF_OMP_FOR_KIND_FOR) |
629b3d75 | 4652 | gimple_seq_add_stmt (ilist, omp_build_barrier (NULL_TREE)); |
74bf76ed JJ |
4653 | } |
4654 | ||
4655 | /* If max_vf is non-zero, then we can use only a vectorization factor | |
4656 | up to the max_vf we chose. So stick it into the safelen clause. */ | |
9d2f08ab | 4657 | if (maybe_ne (sctx.max_vf, 0U)) |
74bf76ed | 4658 | { |
629b3d75 | 4659 | tree c = omp_find_clause (gimple_omp_for_clauses (ctx->stmt), |
74bf76ed | 4660 | OMP_CLAUSE_SAFELEN); |
9d2f08ab | 4661 | poly_uint64 safe_len; |
74bf76ed | 4662 | if (c == NULL_TREE |
9d2f08ab RS |
4663 | || (poly_int_tree_p (OMP_CLAUSE_SAFELEN_EXPR (c), &safe_len) |
4664 | && maybe_gt (safe_len, sctx.max_vf))) | |
74bf76ed JJ |
4665 | { |
4666 | c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_SAFELEN); | |
4667 | OMP_CLAUSE_SAFELEN_EXPR (c) = build_int_cst (integer_type_node, | |
6943af07 | 4668 | sctx.max_vf); |
74bf76ed JJ |
4669 | OMP_CLAUSE_CHAIN (c) = gimple_omp_for_clauses (ctx->stmt); |
4670 | gimple_omp_for_set_clauses (ctx->stmt, c); | |
4671 | } | |
4672 | } | |
953ff289 DN |
4673 | } |
4674 | ||
50674e96 | 4675 | |
953ff289 DN |
4676 | /* Generate code to implement the LASTPRIVATE clauses. This is used for |
4677 | both parallel and workshare constructs. PREDICATE may be NULL if it's | |
4678 | always true. */ | |
4679 | ||
4680 | static void | |
726a989a | 4681 | lower_lastprivate_clauses (tree clauses, tree predicate, gimple_seq *stmt_list, |
acf0174b | 4682 | omp_context *ctx) |
953ff289 | 4683 | { |
74bf76ed | 4684 | tree x, c, label = NULL, orig_clauses = clauses; |
a68ab351 | 4685 | bool par_clauses = false; |
9669b00b | 4686 | tree simduid = NULL, lastlane = NULL, simtcond = NULL, simtlast = NULL; |
953ff289 | 4687 | |
74bf76ed JJ |
4688 | /* Early exit if there are no lastprivate or linear clauses. */ |
4689 | for (; clauses ; clauses = OMP_CLAUSE_CHAIN (clauses)) | |
4690 | if (OMP_CLAUSE_CODE (clauses) == OMP_CLAUSE_LASTPRIVATE | |
4691 | || (OMP_CLAUSE_CODE (clauses) == OMP_CLAUSE_LINEAR | |
4692 | && !OMP_CLAUSE_LINEAR_NO_COPYOUT (clauses))) | |
4693 | break; | |
953ff289 DN |
4694 | if (clauses == NULL) |
4695 | { | |
4696 | /* If this was a workshare clause, see if it had been combined | |
4697 | with its parallel. In that case, look for the clauses on the | |
4698 | parallel statement itself. */ | |
4699 | if (is_parallel_ctx (ctx)) | |
4700 | return; | |
4701 | ||
4702 | ctx = ctx->outer; | |
4703 | if (ctx == NULL || !is_parallel_ctx (ctx)) | |
4704 | return; | |
4705 | ||
629b3d75 | 4706 | clauses = omp_find_clause (gimple_omp_parallel_clauses (ctx->stmt), |
953ff289 DN |
4707 | OMP_CLAUSE_LASTPRIVATE); |
4708 | if (clauses == NULL) | |
4709 | return; | |
a68ab351 | 4710 | par_clauses = true; |
953ff289 DN |
4711 | } |
4712 | ||
9669b00b AM |
4713 | bool maybe_simt = false; |
4714 | if (gimple_code (ctx->stmt) == GIMPLE_OMP_FOR | |
4715 | && gimple_omp_for_kind (ctx->stmt) & GF_OMP_FOR_SIMD) | |
4716 | { | |
629b3d75 MJ |
4717 | maybe_simt = omp_find_clause (orig_clauses, OMP_CLAUSE__SIMT_); |
4718 | simduid = omp_find_clause (orig_clauses, OMP_CLAUSE__SIMDUID_); | |
9669b00b AM |
4719 | if (simduid) |
4720 | simduid = OMP_CLAUSE__SIMDUID__DECL (simduid); | |
4721 | } | |
4722 | ||
726a989a RB |
4723 | if (predicate) |
4724 | { | |
538dd0b7 | 4725 | gcond *stmt; |
726a989a | 4726 | tree label_true, arm1, arm2; |
56b1c60e | 4727 | enum tree_code pred_code = TREE_CODE (predicate); |
726a989a | 4728 | |
c2255bc4 AH |
4729 | label = create_artificial_label (UNKNOWN_LOCATION); |
4730 | label_true = create_artificial_label (UNKNOWN_LOCATION); | |
56b1c60e MJ |
4731 | if (TREE_CODE_CLASS (pred_code) == tcc_comparison) |
4732 | { | |
4733 | arm1 = TREE_OPERAND (predicate, 0); | |
4734 | arm2 = TREE_OPERAND (predicate, 1); | |
4735 | gimplify_expr (&arm1, stmt_list, NULL, is_gimple_val, fb_rvalue); | |
4736 | gimplify_expr (&arm2, stmt_list, NULL, is_gimple_val, fb_rvalue); | |
4737 | } | |
4738 | else | |
4739 | { | |
4740 | arm1 = predicate; | |
4741 | gimplify_expr (&arm1, stmt_list, NULL, is_gimple_val, fb_rvalue); | |
4742 | arm2 = boolean_false_node; | |
4743 | pred_code = NE_EXPR; | |
4744 | } | |
9669b00b AM |
4745 | if (maybe_simt) |
4746 | { | |
56b1c60e | 4747 | c = build2 (pred_code, boolean_type_node, arm1, arm2); |
9669b00b AM |
4748 | c = fold_convert (integer_type_node, c); |
4749 | simtcond = create_tmp_var (integer_type_node); | |
4750 | gimplify_assign (simtcond, c, stmt_list); | |
4751 | gcall *g = gimple_build_call_internal (IFN_GOMP_SIMT_VOTE_ANY, | |
4752 | 1, simtcond); | |
4753 | c = create_tmp_var (integer_type_node); | |
4754 | gimple_call_set_lhs (g, c); | |
4755 | gimple_seq_add_stmt (stmt_list, g); | |
4756 | stmt = gimple_build_cond (NE_EXPR, c, integer_zero_node, | |
4757 | label_true, label); | |
4758 | } | |
4759 | else | |
56b1c60e | 4760 | stmt = gimple_build_cond (pred_code, arm1, arm2, label_true, label); |
726a989a RB |
4761 | gimple_seq_add_stmt (stmt_list, stmt); |
4762 | gimple_seq_add_stmt (stmt_list, gimple_build_label (label_true)); | |
4763 | } | |
953ff289 | 4764 | |
a68ab351 | 4765 | for (c = clauses; c ;) |
953ff289 DN |
4766 | { |
4767 | tree var, new_var; | |
db3927fb | 4768 | location_t clause_loc = OMP_CLAUSE_LOCATION (c); |
953ff289 | 4769 | |
74bf76ed JJ |
4770 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LASTPRIVATE |
4771 | || (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LINEAR | |
4772 | && !OMP_CLAUSE_LINEAR_NO_COPYOUT (c))) | |
a68ab351 JJ |
4773 | { |
4774 | var = OMP_CLAUSE_DECL (c); | |
d9a6bd32 JJ |
4775 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LASTPRIVATE |
4776 | && OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE (c) | |
4777 | && is_taskloop_ctx (ctx)) | |
4778 | { | |
4779 | gcc_checking_assert (ctx->outer && is_task_ctx (ctx->outer)); | |
4780 | new_var = lookup_decl (var, ctx->outer); | |
4781 | } | |
4782 | else | |
2187f2a2 JJ |
4783 | { |
4784 | new_var = lookup_decl (var, ctx); | |
4785 | /* Avoid uninitialized warnings for lastprivate and | |
4786 | for linear iterators. */ | |
4787 | if (predicate | |
4788 | && (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LASTPRIVATE | |
4789 | || OMP_CLAUSE_LINEAR_NO_COPYIN (c))) | |
4790 | TREE_NO_WARNING (new_var) = 1; | |
4791 | } | |
953ff289 | 4792 | |
2260d19d | 4793 | if (!maybe_simt && simduid && DECL_HAS_VALUE_EXPR_P (new_var)) |
74bf76ed JJ |
4794 | { |
4795 | tree val = DECL_VALUE_EXPR (new_var); | |
2260d19d | 4796 | if (TREE_CODE (val) == ARRAY_REF |
74bf76ed JJ |
4797 | && VAR_P (TREE_OPERAND (val, 0)) |
4798 | && lookup_attribute ("omp simd array", | |
4799 | DECL_ATTRIBUTES (TREE_OPERAND (val, | |
4800 | 0)))) | |
4801 | { | |
4802 | if (lastlane == NULL) | |
4803 | { | |
b731b390 | 4804 | lastlane = create_tmp_var (unsigned_type_node); |
538dd0b7 | 4805 | gcall *g |
74bf76ed JJ |
4806 | = gimple_build_call_internal (IFN_GOMP_SIMD_LAST_LANE, |
4807 | 2, simduid, | |
4808 | TREE_OPERAND (val, 1)); | |
4809 | gimple_call_set_lhs (g, lastlane); | |
4810 | gimple_seq_add_stmt (stmt_list, g); | |
4811 | } | |
4812 | new_var = build4 (ARRAY_REF, TREE_TYPE (val), | |
4813 | TREE_OPERAND (val, 0), lastlane, | |
4814 | NULL_TREE, NULL_TREE); | |
0c6b03b5 | 4815 | } |
2260d19d AM |
4816 | } |
4817 | else if (maybe_simt) | |
4818 | { | |
4819 | tree val = (DECL_HAS_VALUE_EXPR_P (new_var) | |
4820 | ? DECL_VALUE_EXPR (new_var) | |
4821 | : new_var); | |
4822 | if (simtlast == NULL) | |
0c6b03b5 | 4823 | { |
2260d19d AM |
4824 | simtlast = create_tmp_var (unsigned_type_node); |
4825 | gcall *g = gimple_build_call_internal | |
4826 | (IFN_GOMP_SIMT_LAST_LANE, 1, simtcond); | |
4827 | gimple_call_set_lhs (g, simtlast); | |
4828 | gimple_seq_add_stmt (stmt_list, g); | |
74bf76ed | 4829 | } |
2260d19d AM |
4830 | x = build_call_expr_internal_loc |
4831 | (UNKNOWN_LOCATION, IFN_GOMP_SIMT_XCHG_IDX, | |
4832 | TREE_TYPE (val), 2, val, simtlast); | |
4833 | new_var = unshare_expr (new_var); | |
4834 | gimplify_assign (new_var, x, stmt_list); | |
4835 | new_var = unshare_expr (new_var); | |
74bf76ed JJ |
4836 | } |
4837 | ||
4838 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LASTPRIVATE | |
4839 | && OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c)) | |
726a989a | 4840 | { |
355a7673 | 4841 | lower_omp (&OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c), ctx); |
726a989a RB |
4842 | gimple_seq_add_seq (stmt_list, |
4843 | OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c)); | |
74bf76ed | 4844 | OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ (c) = NULL; |
726a989a | 4845 | } |
f7468577 JJ |
4846 | else if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LINEAR |
4847 | && OMP_CLAUSE_LINEAR_GIMPLE_SEQ (c)) | |
4848 | { | |
4849 | lower_omp (&OMP_CLAUSE_LINEAR_GIMPLE_SEQ (c), ctx); | |
4850 | gimple_seq_add_seq (stmt_list, | |
4851 | OMP_CLAUSE_LINEAR_GIMPLE_SEQ (c)); | |
4852 | OMP_CLAUSE_LINEAR_GIMPLE_SEQ (c) = NULL; | |
4853 | } | |
953ff289 | 4854 | |
d9a6bd32 JJ |
4855 | x = NULL_TREE; |
4856 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LASTPRIVATE | |
4857 | && OMP_CLAUSE_LASTPRIVATE_TASKLOOP_IV (c)) | |
4858 | { | |
4859 | gcc_checking_assert (is_taskloop_ctx (ctx)); | |
4860 | tree ovar = maybe_lookup_decl_in_outer_ctx (var, | |
4861 | ctx->outer->outer); | |
4862 | if (is_global_var (ovar)) | |
4863 | x = ovar; | |
4864 | } | |
4865 | if (!x) | |
c39dad64 | 4866 | x = build_outer_var_ref (var, ctx, OMP_CLAUSE_LASTPRIVATE); |
629b3d75 | 4867 | if (omp_is_reference (var)) |
70f34814 | 4868 | new_var = build_simple_mem_ref_loc (clause_loc, new_var); |
a68ab351 | 4869 | x = lang_hooks.decls.omp_clause_assign_op (c, x, new_var); |
726a989a | 4870 | gimplify_and_add (x, stmt_list); |
a68ab351 JJ |
4871 | } |
4872 | c = OMP_CLAUSE_CHAIN (c); | |
4873 | if (c == NULL && !par_clauses) | |
4874 | { | |
4875 | /* If this was a workshare clause, see if it had been combined | |
4876 | with its parallel. In that case, continue looking for the | |
4877 | clauses also on the parallel statement itself. */ | |
4878 | if (is_parallel_ctx (ctx)) | |
4879 | break; | |
4880 | ||
4881 | ctx = ctx->outer; | |
4882 | if (ctx == NULL || !is_parallel_ctx (ctx)) | |
4883 | break; | |
4884 | ||
629b3d75 | 4885 | c = omp_find_clause (gimple_omp_parallel_clauses (ctx->stmt), |
a68ab351 JJ |
4886 | OMP_CLAUSE_LASTPRIVATE); |
4887 | par_clauses = true; | |
4888 | } | |
953ff289 DN |
4889 | } |
4890 | ||
726a989a RB |
4891 | if (label) |
4892 | gimple_seq_add_stmt (stmt_list, gimple_build_label (label)); | |
953ff289 DN |
4893 | } |
4894 | ||
e5014671 NS |
4895 | /* Lower the OpenACC reductions of CLAUSES for compute axis LEVEL |
4896 | (which might be a placeholder). INNER is true if this is an inner | |
4897 | axis of a multi-axis loop. FORK and JOIN are (optional) fork and | |
4898 | join markers. Generate the before-loop forking sequence in | |
4899 | FORK_SEQ and the after-loop joining sequence to JOIN_SEQ. The | |
4900 | general form of these sequences is | |
4901 | ||
4902 | GOACC_REDUCTION_SETUP | |
4903 | GOACC_FORK | |
4904 | GOACC_REDUCTION_INIT | |
4905 | ... | |
4906 | GOACC_REDUCTION_FINI | |
4907 | GOACC_JOIN | |
4908 | GOACC_REDUCTION_TEARDOWN. */ | |
4909 | ||
41dbbb37 | 4910 | static void |
e5014671 NS |
4911 | lower_oacc_reductions (location_t loc, tree clauses, tree level, bool inner, |
4912 | gcall *fork, gcall *join, gimple_seq *fork_seq, | |
4913 | gimple_seq *join_seq, omp_context *ctx) | |
41dbbb37 | 4914 | { |
e5014671 NS |
4915 | gimple_seq before_fork = NULL; |
4916 | gimple_seq after_fork = NULL; | |
4917 | gimple_seq before_join = NULL; | |
4918 | gimple_seq after_join = NULL; | |
4919 | tree init_code = NULL_TREE, fini_code = NULL_TREE, | |
4920 | setup_code = NULL_TREE, teardown_code = NULL_TREE; | |
4921 | unsigned offset = 0; | |
4922 | ||
4923 | for (tree c = clauses; c; c = OMP_CLAUSE_CHAIN (c)) | |
4924 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_REDUCTION) | |
4925 | { | |
4926 | tree orig = OMP_CLAUSE_DECL (c); | |
4927 | tree var = maybe_lookup_decl (orig, ctx); | |
4928 | tree ref_to_res = NULL_TREE; | |
c42cfb5c CP |
4929 | tree incoming, outgoing, v1, v2, v3; |
4930 | bool is_private = false; | |
e5014671 NS |
4931 | |
4932 | enum tree_code rcode = OMP_CLAUSE_REDUCTION_CODE (c); | |
4933 | if (rcode == MINUS_EXPR) | |
4934 | rcode = PLUS_EXPR; | |
4935 | else if (rcode == TRUTH_ANDIF_EXPR) | |
4936 | rcode = BIT_AND_EXPR; | |
4937 | else if (rcode == TRUTH_ORIF_EXPR) | |
4938 | rcode = BIT_IOR_EXPR; | |
4939 | tree op = build_int_cst (unsigned_type_node, rcode); | |
4940 | ||
4941 | if (!var) | |
4942 | var = orig; | |
e5014671 NS |
4943 | |
4944 | incoming = outgoing = var; | |
01914336 | 4945 | |
e5014671 NS |
4946 | if (!inner) |
4947 | { | |
4948 | /* See if an outer construct also reduces this variable. */ | |
4949 | omp_context *outer = ctx; | |
41dbbb37 | 4950 | |
e5014671 NS |
4951 | while (omp_context *probe = outer->outer) |
4952 | { | |
4953 | enum gimple_code type = gimple_code (probe->stmt); | |
4954 | tree cls; | |
41dbbb37 | 4955 | |
e5014671 NS |
4956 | switch (type) |
4957 | { | |
4958 | case GIMPLE_OMP_FOR: | |
4959 | cls = gimple_omp_for_clauses (probe->stmt); | |
4960 | break; | |
41dbbb37 | 4961 | |
e5014671 NS |
4962 | case GIMPLE_OMP_TARGET: |
4963 | if (gimple_omp_target_kind (probe->stmt) | |
4964 | != GF_OMP_TARGET_KIND_OACC_PARALLEL) | |
4965 | goto do_lookup; | |
41dbbb37 | 4966 | |
e5014671 NS |
4967 | cls = gimple_omp_target_clauses (probe->stmt); |
4968 | break; | |
41dbbb37 | 4969 | |
e5014671 NS |
4970 | default: |
4971 | goto do_lookup; | |
4972 | } | |
01914336 | 4973 | |
e5014671 NS |
4974 | outer = probe; |
4975 | for (; cls; cls = OMP_CLAUSE_CHAIN (cls)) | |
4976 | if (OMP_CLAUSE_CODE (cls) == OMP_CLAUSE_REDUCTION | |
4977 | && orig == OMP_CLAUSE_DECL (cls)) | |
c42cfb5c CP |
4978 | { |
4979 | incoming = outgoing = lookup_decl (orig, probe); | |
4980 | goto has_outer_reduction; | |
4981 | } | |
4982 | else if ((OMP_CLAUSE_CODE (cls) == OMP_CLAUSE_FIRSTPRIVATE | |
4983 | || OMP_CLAUSE_CODE (cls) == OMP_CLAUSE_PRIVATE) | |
4984 | && orig == OMP_CLAUSE_DECL (cls)) | |
4985 | { | |
4986 | is_private = true; | |
4987 | goto do_lookup; | |
4988 | } | |
e5014671 | 4989 | } |
41dbbb37 | 4990 | |
e5014671 NS |
4991 | do_lookup: |
4992 | /* This is the outermost construct with this reduction, | |
4993 | see if there's a mapping for it. */ | |
4994 | if (gimple_code (outer->stmt) == GIMPLE_OMP_TARGET | |
c42cfb5c | 4995 | && maybe_lookup_field (orig, outer) && !is_private) |
e5014671 NS |
4996 | { |
4997 | ref_to_res = build_receiver_ref (orig, false, outer); | |
629b3d75 | 4998 | if (omp_is_reference (orig)) |
e5014671 | 4999 | ref_to_res = build_simple_mem_ref (ref_to_res); |
41dbbb37 | 5000 | |
c42cfb5c CP |
5001 | tree type = TREE_TYPE (var); |
5002 | if (POINTER_TYPE_P (type)) | |
5003 | type = TREE_TYPE (type); | |
5004 | ||
e5014671 | 5005 | outgoing = var; |
c42cfb5c | 5006 | incoming = omp_reduction_init_op (loc, rcode, type); |
e5014671 NS |
5007 | } |
5008 | else | |
11c4c4ba CLT |
5009 | { |
5010 | /* Try to look at enclosing contexts for reduction var, | |
5011 | use original if no mapping found. */ | |
5012 | tree t = NULL_TREE; | |
5013 | omp_context *c = ctx->outer; | |
5014 | while (c && !t) | |
5015 | { | |
5016 | t = maybe_lookup_decl (orig, c); | |
5017 | c = c->outer; | |
5018 | } | |
5019 | incoming = outgoing = (t ? t : orig); | |
5020 | } | |
01914336 | 5021 | |
e5014671 NS |
5022 | has_outer_reduction:; |
5023 | } | |
41dbbb37 | 5024 | |
e5014671 NS |
5025 | if (!ref_to_res) |
5026 | ref_to_res = integer_zero_node; | |
41dbbb37 | 5027 | |
01914336 | 5028 | if (omp_is_reference (orig)) |
c42cfb5c CP |
5029 | { |
5030 | tree type = TREE_TYPE (var); | |
5031 | const char *id = IDENTIFIER_POINTER (DECL_NAME (var)); | |
5032 | ||
5033 | if (!inner) | |
5034 | { | |
5035 | tree x = create_tmp_var (TREE_TYPE (type), id); | |
5036 | gimplify_assign (var, build_fold_addr_expr (x), fork_seq); | |
5037 | } | |
5038 | ||
5039 | v1 = create_tmp_var (type, id); | |
5040 | v2 = create_tmp_var (type, id); | |
5041 | v3 = create_tmp_var (type, id); | |
5042 | ||
5043 | gimplify_assign (v1, var, fork_seq); | |
5044 | gimplify_assign (v2, var, fork_seq); | |
5045 | gimplify_assign (v3, var, fork_seq); | |
5046 | ||
5047 | var = build_simple_mem_ref (var); | |
5048 | v1 = build_simple_mem_ref (v1); | |
5049 | v2 = build_simple_mem_ref (v2); | |
5050 | v3 = build_simple_mem_ref (v3); | |
5051 | outgoing = build_simple_mem_ref (outgoing); | |
5052 | ||
e387fc64 | 5053 | if (!TREE_CONSTANT (incoming)) |
c42cfb5c CP |
5054 | incoming = build_simple_mem_ref (incoming); |
5055 | } | |
5056 | else | |
5057 | v1 = v2 = v3 = var; | |
5058 | ||
e5014671 | 5059 | /* Determine position in reduction buffer, which may be used |
ef1d3b57 RS |
5060 | by target. The parser has ensured that this is not a |
5061 | variable-sized type. */ | |
5062 | fixed_size_mode mode | |
5063 | = as_a <fixed_size_mode> (TYPE_MODE (TREE_TYPE (var))); | |
e5014671 NS |
5064 | unsigned align = GET_MODE_ALIGNMENT (mode) / BITS_PER_UNIT; |
5065 | offset = (offset + align - 1) & ~(align - 1); | |
5066 | tree off = build_int_cst (sizetype, offset); | |
5067 | offset += GET_MODE_SIZE (mode); | |
41dbbb37 | 5068 | |
e5014671 NS |
5069 | if (!init_code) |
5070 | { | |
5071 | init_code = build_int_cst (integer_type_node, | |
5072 | IFN_GOACC_REDUCTION_INIT); | |
5073 | fini_code = build_int_cst (integer_type_node, | |
5074 | IFN_GOACC_REDUCTION_FINI); | |
5075 | setup_code = build_int_cst (integer_type_node, | |
5076 | IFN_GOACC_REDUCTION_SETUP); | |
5077 | teardown_code = build_int_cst (integer_type_node, | |
5078 | IFN_GOACC_REDUCTION_TEARDOWN); | |
5079 | } | |
5080 | ||
5081 | tree setup_call | |
5082 | = build_call_expr_internal_loc (loc, IFN_GOACC_REDUCTION, | |
5083 | TREE_TYPE (var), 6, setup_code, | |
5084 | unshare_expr (ref_to_res), | |
5085 | incoming, level, op, off); | |
5086 | tree init_call | |
5087 | = build_call_expr_internal_loc (loc, IFN_GOACC_REDUCTION, | |
5088 | TREE_TYPE (var), 6, init_code, | |
5089 | unshare_expr (ref_to_res), | |
c42cfb5c | 5090 | v1, level, op, off); |
e5014671 NS |
5091 | tree fini_call |
5092 | = build_call_expr_internal_loc (loc, IFN_GOACC_REDUCTION, | |
5093 | TREE_TYPE (var), 6, fini_code, | |
5094 | unshare_expr (ref_to_res), | |
c42cfb5c | 5095 | v2, level, op, off); |
e5014671 NS |
5096 | tree teardown_call |
5097 | = build_call_expr_internal_loc (loc, IFN_GOACC_REDUCTION, | |
5098 | TREE_TYPE (var), 6, teardown_code, | |
c42cfb5c | 5099 | ref_to_res, v3, level, op, off); |
e5014671 | 5100 | |
c42cfb5c CP |
5101 | gimplify_assign (v1, setup_call, &before_fork); |
5102 | gimplify_assign (v2, init_call, &after_fork); | |
5103 | gimplify_assign (v3, fini_call, &before_join); | |
e5014671 NS |
5104 | gimplify_assign (outgoing, teardown_call, &after_join); |
5105 | } | |
5106 | ||
5107 | /* Now stitch things together. */ | |
5108 | gimple_seq_add_seq (fork_seq, before_fork); | |
5109 | if (fork) | |
5110 | gimple_seq_add_stmt (fork_seq, fork); | |
5111 | gimple_seq_add_seq (fork_seq, after_fork); | |
5112 | ||
5113 | gimple_seq_add_seq (join_seq, before_join); | |
5114 | if (join) | |
5115 | gimple_seq_add_stmt (join_seq, join); | |
5116 | gimple_seq_add_seq (join_seq, after_join); | |
41dbbb37 | 5117 | } |
50674e96 | 5118 | |
953ff289 DN |
5119 | /* Generate code to implement the REDUCTION clauses. */ |
5120 | ||
5121 | static void | |
726a989a | 5122 | lower_reduction_clauses (tree clauses, gimple_seq *stmt_seqp, omp_context *ctx) |
953ff289 | 5123 | { |
726a989a | 5124 | gimple_seq sub_seq = NULL; |
355fe088 | 5125 | gimple *stmt; |
374d0225 | 5126 | tree x, c; |
953ff289 DN |
5127 | int count = 0; |
5128 | ||
e5014671 NS |
5129 | /* OpenACC loop reductions are handled elsewhere. */ |
5130 | if (is_gimple_omp_oacc (ctx->stmt)) | |
5131 | return; | |
5132 | ||
74bf76ed JJ |
5133 | /* SIMD reductions are handled in lower_rec_input_clauses. */ |
5134 | if (gimple_code (ctx->stmt) == GIMPLE_OMP_FOR | |
0aadce73 | 5135 | && gimple_omp_for_kind (ctx->stmt) & GF_OMP_FOR_SIMD) |
74bf76ed JJ |
5136 | return; |
5137 | ||
953ff289 DN |
5138 | /* First see if there is exactly one reduction clause. Use OMP_ATOMIC |
5139 | update in that case, otherwise use a lock. */ | |
5140 | for (c = clauses; c && count < 2; c = OMP_CLAUSE_CHAIN (c)) | |
aaf46ef9 | 5141 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_REDUCTION) |
953ff289 | 5142 | { |
d9a6bd32 JJ |
5143 | if (OMP_CLAUSE_REDUCTION_PLACEHOLDER (c) |
5144 | || TREE_CODE (OMP_CLAUSE_DECL (c)) == MEM_REF) | |
953ff289 | 5145 | { |
acf0174b | 5146 | /* Never use OMP_ATOMIC for array reductions or UDRs. */ |
953ff289 DN |
5147 | count = -1; |
5148 | break; | |
5149 | } | |
5150 | count++; | |
5151 | } | |
5152 | ||
5153 | if (count == 0) | |
5154 | return; | |
5155 | ||
5156 | for (c = clauses; c ; c = OMP_CLAUSE_CHAIN (c)) | |
5157 | { | |
d9a6bd32 | 5158 | tree var, ref, new_var, orig_var; |
953ff289 | 5159 | enum tree_code code; |
db3927fb | 5160 | location_t clause_loc = OMP_CLAUSE_LOCATION (c); |
953ff289 | 5161 | |
aaf46ef9 | 5162 | if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_REDUCTION) |
953ff289 DN |
5163 | continue; |
5164 | ||
c24783c4 | 5165 | enum omp_clause_code ccode = OMP_CLAUSE_REDUCTION; |
d9a6bd32 JJ |
5166 | orig_var = var = OMP_CLAUSE_DECL (c); |
5167 | if (TREE_CODE (var) == MEM_REF) | |
5168 | { | |
5169 | var = TREE_OPERAND (var, 0); | |
e01d41e5 JJ |
5170 | if (TREE_CODE (var) == POINTER_PLUS_EXPR) |
5171 | var = TREE_OPERAND (var, 0); | |
c24783c4 | 5172 | if (TREE_CODE (var) == ADDR_EXPR) |
d9a6bd32 | 5173 | var = TREE_OPERAND (var, 0); |
c24783c4 JJ |
5174 | else |
5175 | { | |
5176 | /* If this is a pointer or referenced based array | |
5177 | section, the var could be private in the outer | |
5178 | context e.g. on orphaned loop construct. Pretend this | |
5179 | is private variable's outer reference. */ | |
5180 | ccode = OMP_CLAUSE_PRIVATE; | |
5181 | if (TREE_CODE (var) == INDIRECT_REF) | |
5182 | var = TREE_OPERAND (var, 0); | |
5183 | } | |
d9a6bd32 JJ |
5184 | orig_var = var; |
5185 | if (is_variable_sized (var)) | |
5186 | { | |
5187 | gcc_assert (DECL_HAS_VALUE_EXPR_P (var)); | |
5188 | var = DECL_VALUE_EXPR (var); | |
5189 | gcc_assert (TREE_CODE (var) == INDIRECT_REF); | |
5190 | var = TREE_OPERAND (var, 0); | |
5191 | gcc_assert (DECL_P (var)); | |
5192 | } | |
5193 | } | |
953ff289 | 5194 | new_var = lookup_decl (var, ctx); |
629b3d75 | 5195 | if (var == OMP_CLAUSE_DECL (c) && omp_is_reference (var)) |
70f34814 | 5196 | new_var = build_simple_mem_ref_loc (clause_loc, new_var); |
c24783c4 | 5197 | ref = build_outer_var_ref (var, ctx, ccode); |
953ff289 | 5198 | code = OMP_CLAUSE_REDUCTION_CODE (c); |
50674e96 DN |
5199 | |
5200 | /* reduction(-:var) sums up the partial results, so it acts | |
5201 | identically to reduction(+:var). */ | |
953ff289 DN |
5202 | if (code == MINUS_EXPR) |
5203 | code = PLUS_EXPR; | |
5204 | ||
e5014671 | 5205 | if (count == 1) |
953ff289 | 5206 | { |
db3927fb | 5207 | tree addr = build_fold_addr_expr_loc (clause_loc, ref); |
953ff289 DN |
5208 | |
5209 | addr = save_expr (addr); | |
5210 | ref = build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (addr)), addr); | |
db3927fb | 5211 | x = fold_build2_loc (clause_loc, code, TREE_TYPE (ref), ref, new_var); |
953ff289 | 5212 | x = build2 (OMP_ATOMIC, void_type_node, addr, x); |
726a989a | 5213 | gimplify_and_add (x, stmt_seqp); |
953ff289 DN |
5214 | return; |
5215 | } | |
d9a6bd32 JJ |
5216 | else if (TREE_CODE (OMP_CLAUSE_DECL (c)) == MEM_REF) |
5217 | { | |
5218 | tree d = OMP_CLAUSE_DECL (c); | |
5219 | tree type = TREE_TYPE (d); | |
5220 | tree v = TYPE_MAX_VALUE (TYPE_DOMAIN (type)); | |
5221 | tree i = create_tmp_var (TREE_TYPE (v), NULL); | |
5222 | tree ptype = build_pointer_type (TREE_TYPE (type)); | |
e01d41e5 JJ |
5223 | tree bias = TREE_OPERAND (d, 1); |
5224 | d = TREE_OPERAND (d, 0); | |
5225 | if (TREE_CODE (d) == POINTER_PLUS_EXPR) | |
5226 | { | |
5227 | tree b = TREE_OPERAND (d, 1); | |
5228 | b = maybe_lookup_decl (b, ctx); | |
5229 | if (b == NULL) | |
5230 | { | |
5231 | b = TREE_OPERAND (d, 1); | |
5232 | b = maybe_lookup_decl_in_outer_ctx (b, ctx); | |
5233 | } | |
5234 | if (integer_zerop (bias)) | |
5235 | bias = b; | |
5236 | else | |
5237 | { | |
5238 | bias = fold_convert_loc (clause_loc, TREE_TYPE (b), bias); | |
5239 | bias = fold_build2_loc (clause_loc, PLUS_EXPR, | |
5240 | TREE_TYPE (b), b, bias); | |
5241 | } | |
5242 | d = TREE_OPERAND (d, 0); | |
5243 | } | |
d9a6bd32 JJ |
5244 | /* For ref build_outer_var_ref already performs this, so |
5245 | only new_var needs a dereference. */ | |
e01d41e5 | 5246 | if (TREE_CODE (d) == INDIRECT_REF) |
d9a6bd32 JJ |
5247 | { |
5248 | new_var = build_simple_mem_ref_loc (clause_loc, new_var); | |
629b3d75 | 5249 | gcc_assert (omp_is_reference (var) && var == orig_var); |
d9a6bd32 | 5250 | } |
e01d41e5 | 5251 | else if (TREE_CODE (d) == ADDR_EXPR) |
d9a6bd32 JJ |
5252 | { |
5253 | if (orig_var == var) | |
5254 | { | |
5255 | new_var = build_fold_addr_expr (new_var); | |
5256 | ref = build_fold_addr_expr (ref); | |
5257 | } | |
5258 | } | |
5259 | else | |
5260 | { | |
5261 | gcc_assert (orig_var == var); | |
629b3d75 | 5262 | if (omp_is_reference (var)) |
d9a6bd32 JJ |
5263 | ref = build_fold_addr_expr (ref); |
5264 | } | |
5265 | if (DECL_P (v)) | |
5266 | { | |
5267 | tree t = maybe_lookup_decl (v, ctx); | |
5268 | if (t) | |
5269 | v = t; | |
5270 | else | |
5271 | v = maybe_lookup_decl_in_outer_ctx (v, ctx); | |
5272 | gimplify_expr (&v, stmt_seqp, NULL, is_gimple_val, fb_rvalue); | |
5273 | } | |
e01d41e5 JJ |
5274 | if (!integer_zerop (bias)) |
5275 | { | |
5276 | bias = fold_convert_loc (clause_loc, sizetype, bias); | |
5277 | new_var = fold_build2_loc (clause_loc, POINTER_PLUS_EXPR, | |
5278 | TREE_TYPE (new_var), new_var, | |
5279 | unshare_expr (bias)); | |
5280 | ref = fold_build2_loc (clause_loc, POINTER_PLUS_EXPR, | |
5281 | TREE_TYPE (ref), ref, bias); | |
5282 | } | |
d9a6bd32 JJ |
5283 | new_var = fold_convert_loc (clause_loc, ptype, new_var); |
5284 | ref = fold_convert_loc (clause_loc, ptype, ref); | |
5285 | tree m = create_tmp_var (ptype, NULL); | |
5286 | gimplify_assign (m, new_var, stmt_seqp); | |
5287 | new_var = m; | |
5288 | m = create_tmp_var (ptype, NULL); | |
5289 | gimplify_assign (m, ref, stmt_seqp); | |
5290 | ref = m; | |
5291 | gimplify_assign (i, build_int_cst (TREE_TYPE (v), 0), stmt_seqp); | |
5292 | tree body = create_artificial_label (UNKNOWN_LOCATION); | |
5293 | tree end = create_artificial_label (UNKNOWN_LOCATION); | |
5294 | gimple_seq_add_stmt (&sub_seq, gimple_build_label (body)); | |
5295 | tree priv = build_simple_mem_ref_loc (clause_loc, new_var); | |
5296 | tree out = build_simple_mem_ref_loc (clause_loc, ref); | |
5297 | if (OMP_CLAUSE_REDUCTION_PLACEHOLDER (c)) | |
5298 | { | |
5299 | tree placeholder = OMP_CLAUSE_REDUCTION_PLACEHOLDER (c); | |
5300 | tree decl_placeholder | |
5301 | = OMP_CLAUSE_REDUCTION_DECL_PLACEHOLDER (c); | |
5302 | SET_DECL_VALUE_EXPR (placeholder, out); | |
5303 | DECL_HAS_VALUE_EXPR_P (placeholder) = 1; | |
5304 | SET_DECL_VALUE_EXPR (decl_placeholder, priv); | |
5305 | DECL_HAS_VALUE_EXPR_P (decl_placeholder) = 1; | |
5306 | lower_omp (&OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c), ctx); | |
5307 | gimple_seq_add_seq (&sub_seq, | |
5308 | OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c)); | |
5309 | OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c) = NULL; | |
5310 | OMP_CLAUSE_REDUCTION_PLACEHOLDER (c) = NULL; | |
5311 | OMP_CLAUSE_REDUCTION_DECL_PLACEHOLDER (c) = NULL; | |
5312 | } | |
5313 | else | |
5314 | { | |
5315 | x = build2 (code, TREE_TYPE (out), out, priv); | |
5316 | out = unshare_expr (out); | |
5317 | gimplify_assign (out, x, &sub_seq); | |
5318 | } | |
5319 | gimple *g = gimple_build_assign (new_var, POINTER_PLUS_EXPR, new_var, | |
5320 | TYPE_SIZE_UNIT (TREE_TYPE (type))); | |
5321 | gimple_seq_add_stmt (&sub_seq, g); | |
5322 | g = gimple_build_assign (ref, POINTER_PLUS_EXPR, ref, | |
5323 | TYPE_SIZE_UNIT (TREE_TYPE (type))); | |
5324 | gimple_seq_add_stmt (&sub_seq, g); | |
5325 | g = gimple_build_assign (i, PLUS_EXPR, i, | |
5326 | build_int_cst (TREE_TYPE (i), 1)); | |
5327 | gimple_seq_add_stmt (&sub_seq, g); | |
5328 | g = gimple_build_cond (LE_EXPR, i, v, body, end); | |
5329 | gimple_seq_add_stmt (&sub_seq, g); | |
5330 | gimple_seq_add_stmt (&sub_seq, gimple_build_label (end)); | |
5331 | } | |
41dbbb37 | 5332 | else if (OMP_CLAUSE_REDUCTION_PLACEHOLDER (c)) |
953ff289 DN |
5333 | { |
5334 | tree placeholder = OMP_CLAUSE_REDUCTION_PLACEHOLDER (c); | |
5335 | ||
629b3d75 | 5336 | if (omp_is_reference (var) |
acf0174b JJ |
5337 | && !useless_type_conversion_p (TREE_TYPE (placeholder), |
5338 | TREE_TYPE (ref))) | |
db3927fb | 5339 | ref = build_fold_addr_expr_loc (clause_loc, ref); |
953ff289 DN |
5340 | SET_DECL_VALUE_EXPR (placeholder, ref); |
5341 | DECL_HAS_VALUE_EXPR_P (placeholder) = 1; | |
355a7673 | 5342 | lower_omp (&OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c), ctx); |
726a989a RB |
5343 | gimple_seq_add_seq (&sub_seq, OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c)); |
5344 | OMP_CLAUSE_REDUCTION_GIMPLE_MERGE (c) = NULL; | |
953ff289 DN |
5345 | OMP_CLAUSE_REDUCTION_PLACEHOLDER (c) = NULL; |
5346 | } | |
5347 | else | |
5348 | { | |
5349 | x = build2 (code, TREE_TYPE (ref), ref, new_var); | |
5350 | ref = build_outer_var_ref (var, ctx); | |
726a989a | 5351 | gimplify_assign (ref, x, &sub_seq); |
953ff289 DN |
5352 | } |
5353 | } | |
5354 | ||
e79983f4 MM |
5355 | stmt = gimple_build_call (builtin_decl_explicit (BUILT_IN_GOMP_ATOMIC_START), |
5356 | 0); | |
726a989a | 5357 | gimple_seq_add_stmt (stmt_seqp, stmt); |
953ff289 | 5358 | |
726a989a | 5359 | gimple_seq_add_seq (stmt_seqp, sub_seq); |
953ff289 | 5360 | |
e79983f4 MM |
5361 | stmt = gimple_build_call (builtin_decl_explicit (BUILT_IN_GOMP_ATOMIC_END), |
5362 | 0); | |
726a989a | 5363 | gimple_seq_add_stmt (stmt_seqp, stmt); |
953ff289 DN |
5364 | } |
5365 | ||
50674e96 | 5366 | |
953ff289 DN |
5367 | /* Generate code to implement the COPYPRIVATE clauses. */ |
5368 | ||
5369 | static void | |
726a989a | 5370 | lower_copyprivate_clauses (tree clauses, gimple_seq *slist, gimple_seq *rlist, |
953ff289 DN |
5371 | omp_context *ctx) |
5372 | { | |
5373 | tree c; | |
5374 | ||
5375 | for (c = clauses; c ; c = OMP_CLAUSE_CHAIN (c)) | |
5376 | { | |
78db7d92 | 5377 | tree var, new_var, ref, x; |
953ff289 | 5378 | bool by_ref; |
db3927fb | 5379 | location_t clause_loc = OMP_CLAUSE_LOCATION (c); |
953ff289 | 5380 | |
aaf46ef9 | 5381 | if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_COPYPRIVATE) |
953ff289 DN |
5382 | continue; |
5383 | ||
5384 | var = OMP_CLAUSE_DECL (c); | |
7c8f7639 | 5385 | by_ref = use_pointer_for_field (var, NULL); |
953ff289 DN |
5386 | |
5387 | ref = build_sender_ref (var, ctx); | |
78db7d92 JJ |
5388 | x = new_var = lookup_decl_in_outer_ctx (var, ctx); |
5389 | if (by_ref) | |
5390 | { | |
5391 | x = build_fold_addr_expr_loc (clause_loc, new_var); | |
5392 | x = fold_convert_loc (clause_loc, TREE_TYPE (ref), x); | |
5393 | } | |
726a989a | 5394 | gimplify_assign (ref, x, slist); |
953ff289 | 5395 | |
78db7d92 JJ |
5396 | ref = build_receiver_ref (var, false, ctx); |
5397 | if (by_ref) | |
5398 | { | |
5399 | ref = fold_convert_loc (clause_loc, | |
5400 | build_pointer_type (TREE_TYPE (new_var)), | |
5401 | ref); | |
5402 | ref = build_fold_indirect_ref_loc (clause_loc, ref); | |
5403 | } | |
629b3d75 | 5404 | if (omp_is_reference (var)) |
953ff289 | 5405 | { |
78db7d92 | 5406 | ref = fold_convert_loc (clause_loc, TREE_TYPE (new_var), ref); |
70f34814 RG |
5407 | ref = build_simple_mem_ref_loc (clause_loc, ref); |
5408 | new_var = build_simple_mem_ref_loc (clause_loc, new_var); | |
953ff289 | 5409 | } |
78db7d92 | 5410 | x = lang_hooks.decls.omp_clause_assign_op (c, new_var, ref); |
953ff289 DN |
5411 | gimplify_and_add (x, rlist); |
5412 | } | |
5413 | } | |
5414 | ||
50674e96 | 5415 | |
953ff289 DN |
5416 | /* Generate code to implement the clauses, FIRSTPRIVATE, COPYIN, LASTPRIVATE, |
5417 | and REDUCTION from the sender (aka parent) side. */ | |
5418 | ||
5419 | static void | |
726a989a RB |
5420 | lower_send_clauses (tree clauses, gimple_seq *ilist, gimple_seq *olist, |
5421 | omp_context *ctx) | |
953ff289 | 5422 | { |
d9a6bd32 JJ |
5423 | tree c, t; |
5424 | int ignored_looptemp = 0; | |
5425 | bool is_taskloop = false; | |
5426 | ||
5427 | /* For taskloop, ignore first two _looptemp_ clauses, those are initialized | |
5428 | by GOMP_taskloop. */ | |
5429 | if (is_task_ctx (ctx) && gimple_omp_task_taskloop_p (ctx->stmt)) | |
5430 | { | |
5431 | ignored_looptemp = 2; | |
5432 | is_taskloop = true; | |
5433 | } | |
953ff289 DN |
5434 | |
5435 | for (c = clauses; c ; c = OMP_CLAUSE_CHAIN (c)) | |
5436 | { | |
50674e96 | 5437 | tree val, ref, x, var; |
953ff289 | 5438 | bool by_ref, do_in = false, do_out = false; |
db3927fb | 5439 | location_t clause_loc = OMP_CLAUSE_LOCATION (c); |
953ff289 | 5440 | |
aaf46ef9 | 5441 | switch (OMP_CLAUSE_CODE (c)) |
953ff289 | 5442 | { |
a68ab351 JJ |
5443 | case OMP_CLAUSE_PRIVATE: |
5444 | if (OMP_CLAUSE_PRIVATE_OUTER_REF (c)) | |
5445 | break; | |
5446 | continue; | |
953ff289 DN |
5447 | case OMP_CLAUSE_FIRSTPRIVATE: |
5448 | case OMP_CLAUSE_COPYIN: | |
5449 | case OMP_CLAUSE_LASTPRIVATE: | |
5450 | case OMP_CLAUSE_REDUCTION: | |
d9a6bd32 JJ |
5451 | break; |
5452 | case OMP_CLAUSE_SHARED: | |
5453 | if (OMP_CLAUSE_SHARED_FIRSTPRIVATE (c)) | |
5454 | break; | |
5455 | continue; | |
acf0174b | 5456 | case OMP_CLAUSE__LOOPTEMP_: |
d9a6bd32 JJ |
5457 | if (ignored_looptemp) |
5458 | { | |
5459 | ignored_looptemp--; | |
5460 | continue; | |
5461 | } | |
953ff289 DN |
5462 | break; |
5463 | default: | |
5464 | continue; | |
5465 | } | |
5466 | ||
d2dda7fe | 5467 | val = OMP_CLAUSE_DECL (c); |
d9a6bd32 JJ |
5468 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_REDUCTION |
5469 | && TREE_CODE (val) == MEM_REF) | |
5470 | { | |
5471 | val = TREE_OPERAND (val, 0); | |
e01d41e5 JJ |
5472 | if (TREE_CODE (val) == POINTER_PLUS_EXPR) |
5473 | val = TREE_OPERAND (val, 0); | |
d9a6bd32 JJ |
5474 | if (TREE_CODE (val) == INDIRECT_REF |
5475 | || TREE_CODE (val) == ADDR_EXPR) | |
5476 | val = TREE_OPERAND (val, 0); | |
5477 | if (is_variable_sized (val)) | |
5478 | continue; | |
5479 | } | |
5480 | ||
5481 | /* For OMP_CLAUSE_SHARED_FIRSTPRIVATE, look beyond the | |
5482 | outer taskloop region. */ | |
5483 | omp_context *ctx_for_o = ctx; | |
5484 | if (is_taskloop | |
5485 | && OMP_CLAUSE_CODE (c) == OMP_CLAUSE_SHARED | |
5486 | && OMP_CLAUSE_SHARED_FIRSTPRIVATE (c)) | |
5487 | ctx_for_o = ctx->outer; | |
5488 | ||
5489 | var = lookup_decl_in_outer_ctx (val, ctx_for_o); | |
50674e96 | 5490 | |
8ca5b2a2 JJ |
5491 | if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_COPYIN |
5492 | && is_global_var (var)) | |
5493 | continue; | |
d9a6bd32 JJ |
5494 | |
5495 | t = omp_member_access_dummy_var (var); | |
5496 | if (t) | |
5497 | { | |
5498 | var = DECL_VALUE_EXPR (var); | |
5499 | tree o = maybe_lookup_decl_in_outer_ctx (t, ctx_for_o); | |
5500 | if (o != t) | |
5501 | var = unshare_and_remap (var, t, o); | |
5502 | else | |
5503 | var = unshare_expr (var); | |
5504 | } | |
5505 | ||
5506 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_SHARED) | |
5507 | { | |
5508 | /* Handle taskloop firstprivate/lastprivate, where the | |
5509 | lastprivate on GIMPLE_OMP_TASK is represented as | |
5510 | OMP_CLAUSE_SHARED_FIRSTPRIVATE. */ | |
5511 | tree f = lookup_sfield ((splay_tree_key) &DECL_UID (val), ctx); | |
5512 | x = omp_build_component_ref (ctx->sender_decl, f); | |
5513 | if (use_pointer_for_field (val, ctx)) | |
5514 | var = build_fold_addr_expr (var); | |
5515 | gimplify_assign (x, var, ilist); | |
5516 | DECL_ABSTRACT_ORIGIN (f) = NULL; | |
5517 | continue; | |
5518 | } | |
5519 | ||
5520 | if ((OMP_CLAUSE_CODE (c) != OMP_CLAUSE_REDUCTION | |
5521 | || val == OMP_CLAUSE_DECL (c)) | |
5522 | && is_variable_sized (val)) | |
953ff289 | 5523 | continue; |
7c8f7639 | 5524 | by_ref = use_pointer_for_field (val, NULL); |
953ff289 | 5525 | |
aaf46ef9 | 5526 | switch (OMP_CLAUSE_CODE (c)) |
953ff289 DN |
5527 | { |
5528 | case OMP_CLAUSE_FIRSTPRIVATE: | |
ec35ea45 JJ |
5529 | if (OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT (c) |
5530 | && !by_ref | |
5531 | && is_task_ctx (ctx)) | |
5532 | TREE_NO_WARNING (var) = 1; | |
5533 | do_in = true; | |
5534 | break; | |
5535 | ||
5536 | case OMP_CLAUSE_PRIVATE: | |
953ff289 | 5537 | case OMP_CLAUSE_COPYIN: |
acf0174b | 5538 | case OMP_CLAUSE__LOOPTEMP_: |
953ff289 DN |
5539 | do_in = true; |
5540 | break; | |
5541 | ||
5542 | case OMP_CLAUSE_LASTPRIVATE: | |
629b3d75 | 5543 | if (by_ref || omp_is_reference (val)) |
953ff289 DN |
5544 | { |
5545 | if (OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE (c)) | |
5546 | continue; | |
5547 | do_in = true; | |
5548 | } | |
5549 | else | |
a68ab351 JJ |
5550 | { |
5551 | do_out = true; | |
5552 | if (lang_hooks.decls.omp_private_outer_ref (val)) | |
5553 | do_in = true; | |
5554 | } | |
953ff289 DN |
5555 | break; |
5556 | ||
5557 | case OMP_CLAUSE_REDUCTION: | |
5558 | do_in = true; | |
d9a6bd32 | 5559 | if (val == OMP_CLAUSE_DECL (c)) |
629b3d75 | 5560 | do_out = !(by_ref || omp_is_reference (val)); |
d9a6bd32 JJ |
5561 | else |
5562 | by_ref = TREE_CODE (TREE_TYPE (val)) == ARRAY_TYPE; | |
953ff289 DN |
5563 | break; |
5564 | ||
5565 | default: | |
5566 | gcc_unreachable (); | |
5567 | } | |
5568 | ||
5569 | if (do_in) | |
5570 | { | |
5571 | ref = build_sender_ref (val, ctx); | |
db3927fb | 5572 | x = by_ref ? build_fold_addr_expr_loc (clause_loc, var) : var; |
726a989a | 5573 | gimplify_assign (ref, x, ilist); |
a68ab351 JJ |
5574 | if (is_task_ctx (ctx)) |
5575 | DECL_ABSTRACT_ORIGIN (TREE_OPERAND (ref, 1)) = NULL; | |
953ff289 | 5576 | } |
50674e96 | 5577 | |
953ff289 DN |
5578 | if (do_out) |
5579 | { | |
5580 | ref = build_sender_ref (val, ctx); | |
726a989a | 5581 | gimplify_assign (var, ref, olist); |
953ff289 DN |
5582 | } |
5583 | } | |
5584 | } | |
5585 | ||
726a989a RB |
5586 | /* Generate code to implement SHARED from the sender (aka parent) |
5587 | side. This is trickier, since GIMPLE_OMP_PARALLEL_CLAUSES doesn't | |
5588 | list things that got automatically shared. */ | |
953ff289 DN |
5589 | |
5590 | static void | |
726a989a | 5591 | lower_send_shared_vars (gimple_seq *ilist, gimple_seq *olist, omp_context *ctx) |
953ff289 | 5592 | { |
d9a6bd32 | 5593 | tree var, ovar, nvar, t, f, x, record_type; |
953ff289 DN |
5594 | |
5595 | if (ctx->record_type == NULL) | |
5596 | return; | |
50674e96 | 5597 | |
a68ab351 | 5598 | record_type = ctx->srecord_type ? ctx->srecord_type : ctx->record_type; |
910ad8de | 5599 | for (f = TYPE_FIELDS (record_type); f ; f = DECL_CHAIN (f)) |
953ff289 DN |
5600 | { |
5601 | ovar = DECL_ABSTRACT_ORIGIN (f); | |
d9a6bd32 JJ |
5602 | if (!ovar || TREE_CODE (ovar) == FIELD_DECL) |
5603 | continue; | |
5604 | ||
953ff289 DN |
5605 | nvar = maybe_lookup_decl (ovar, ctx); |
5606 | if (!nvar || !DECL_HAS_VALUE_EXPR_P (nvar)) | |
5607 | continue; | |
5608 | ||
50674e96 DN |
5609 | /* If CTX is a nested parallel directive. Find the immediately |
5610 | enclosing parallel or workshare construct that contains a | |
5611 | mapping for OVAR. */ | |
d2dda7fe | 5612 | var = lookup_decl_in_outer_ctx (ovar, ctx); |
50674e96 | 5613 | |
d9a6bd32 JJ |
5614 | t = omp_member_access_dummy_var (var); |
5615 | if (t) | |
5616 | { | |
5617 | var = DECL_VALUE_EXPR (var); | |
5618 | tree o = maybe_lookup_decl_in_outer_ctx (t, ctx); | |
5619 | if (o != t) | |
5620 | var = unshare_and_remap (var, t, o); | |
5621 | else | |
5622 | var = unshare_expr (var); | |
5623 | } | |
5624 | ||
7c8f7639 | 5625 | if (use_pointer_for_field (ovar, ctx)) |
953ff289 DN |
5626 | { |
5627 | x = build_sender_ref (ovar, ctx); | |
50674e96 | 5628 | var = build_fold_addr_expr (var); |
726a989a | 5629 | gimplify_assign (x, var, ilist); |
953ff289 DN |
5630 | } |
5631 | else | |
5632 | { | |
5633 | x = build_sender_ref (ovar, ctx); | |
726a989a | 5634 | gimplify_assign (x, var, ilist); |
953ff289 | 5635 | |
14e5b285 RG |
5636 | if (!TREE_READONLY (var) |
5637 | /* We don't need to receive a new reference to a result | |
5638 | or parm decl. In fact we may not store to it as we will | |
5639 | invalidate any pending RSO and generate wrong gimple | |
5640 | during inlining. */ | |
5641 | && !((TREE_CODE (var) == RESULT_DECL | |
5642 | || TREE_CODE (var) == PARM_DECL) | |
5643 | && DECL_BY_REFERENCE (var))) | |
a68ab351 JJ |
5644 | { |
5645 | x = build_sender_ref (ovar, ctx); | |
726a989a | 5646 | gimplify_assign (var, x, olist); |
a68ab351 | 5647 | } |
953ff289 DN |
5648 | } |
5649 | } | |
5650 | } | |
5651 | ||
e4834818 NS |
5652 | /* Emit an OpenACC head marker call, encapulating the partitioning and |
5653 | other information that must be processed by the target compiler. | |
5654 | Return the maximum number of dimensions the associated loop might | |
5655 | be partitioned over. */ | |
5656 | ||
5657 | static unsigned | |
5658 | lower_oacc_head_mark (location_t loc, tree ddvar, tree clauses, | |
5659 | gimple_seq *seq, omp_context *ctx) | |
5660 | { | |
5661 | unsigned levels = 0; | |
5662 | unsigned tag = 0; | |
5663 | tree gang_static = NULL_TREE; | |
5664 | auto_vec<tree, 5> args; | |
5665 | ||
5666 | args.quick_push (build_int_cst | |
5667 | (integer_type_node, IFN_UNIQUE_OACC_HEAD_MARK)); | |
5668 | args.quick_push (ddvar); | |
5669 | for (tree c = clauses; c; c = OMP_CLAUSE_CHAIN (c)) | |
5670 | { | |
5671 | switch (OMP_CLAUSE_CODE (c)) | |
5672 | { | |
5673 | case OMP_CLAUSE_GANG: | |
5674 | tag |= OLF_DIM_GANG; | |
5675 | gang_static = OMP_CLAUSE_GANG_STATIC_EXPR (c); | |
5676 | /* static:* is represented by -1, and we can ignore it, as | |
5677 | scheduling is always static. */ | |
5678 | if (gang_static && integer_minus_onep (gang_static)) | |
5679 | gang_static = NULL_TREE; | |
5680 | levels++; | |
5681 | break; | |
5682 | ||
5683 | case OMP_CLAUSE_WORKER: | |
5684 | tag |= OLF_DIM_WORKER; | |
5685 | levels++; | |
5686 | break; | |
5687 | ||
5688 | case OMP_CLAUSE_VECTOR: | |
5689 | tag |= OLF_DIM_VECTOR; | |
5690 | levels++; | |
5691 | break; | |
5692 | ||
5693 | case OMP_CLAUSE_SEQ: | |
5694 | tag |= OLF_SEQ; | |
5695 | break; | |
5696 | ||
5697 | case OMP_CLAUSE_AUTO: | |
5698 | tag |= OLF_AUTO; | |
5699 | break; | |
5700 | ||
5701 | case OMP_CLAUSE_INDEPENDENT: | |
5702 | tag |= OLF_INDEPENDENT; | |
5703 | break; | |
5704 | ||
02889d23 CLT |
5705 | case OMP_CLAUSE_TILE: |
5706 | tag |= OLF_TILE; | |
5707 | break; | |
5708 | ||
e4834818 NS |
5709 | default: |
5710 | continue; | |
5711 | } | |
5712 | } | |
5713 | ||
5714 | if (gang_static) | |
5715 | { | |
5716 | if (DECL_P (gang_static)) | |
5717 | gang_static = build_outer_var_ref (gang_static, ctx); | |
5718 | tag |= OLF_GANG_STATIC; | |
5719 | } | |
5720 | ||
5721 | /* In a parallel region, loops are implicitly INDEPENDENT. */ | |
5722 | omp_context *tgt = enclosing_target_ctx (ctx); | |
5723 | if (!tgt || is_oacc_parallel (tgt)) | |
5724 | tag |= OLF_INDEPENDENT; | |
5725 | ||
02889d23 CLT |
5726 | if (tag & OLF_TILE) |
5727 | /* Tiling could use all 3 levels. */ | |
5728 | levels = 3; | |
5729 | else | |
5730 | { | |
5731 | /* A loop lacking SEQ, GANG, WORKER and/or VECTOR could be AUTO. | |
5732 | Ensure at least one level, or 2 for possible auto | |
5733 | partitioning */ | |
5734 | bool maybe_auto = !(tag & (((GOMP_DIM_MASK (GOMP_DIM_MAX) - 1) | |
5735 | << OLF_DIM_BASE) | OLF_SEQ)); | |
5736 | ||
5737 | if (levels < 1u + maybe_auto) | |
5738 | levels = 1u + maybe_auto; | |
5739 | } | |
e4834818 NS |
5740 | |
5741 | args.quick_push (build_int_cst (integer_type_node, levels)); | |
5742 | args.quick_push (build_int_cst (integer_type_node, tag)); | |
5743 | if (gang_static) | |
5744 | args.quick_push (gang_static); | |
5745 | ||
5746 | gcall *call = gimple_build_call_internal_vec (IFN_UNIQUE, args); | |
5747 | gimple_set_location (call, loc); | |
5748 | gimple_set_lhs (call, ddvar); | |
5749 | gimple_seq_add_stmt (seq, call); | |
5750 | ||
5751 | return levels; | |
5752 | } | |
5753 | ||
5754 | /* Emit an OpenACC lopp head or tail marker to SEQ. LEVEL is the | |
5755 | partitioning level of the enclosed region. */ | |
5756 | ||
5757 | static void | |
5758 | lower_oacc_loop_marker (location_t loc, tree ddvar, bool head, | |
5759 | tree tofollow, gimple_seq *seq) | |
5760 | { | |
5761 | int marker_kind = (head ? IFN_UNIQUE_OACC_HEAD_MARK | |
5762 | : IFN_UNIQUE_OACC_TAIL_MARK); | |
5763 | tree marker = build_int_cst (integer_type_node, marker_kind); | |
5764 | int nargs = 2 + (tofollow != NULL_TREE); | |
5765 | gcall *call = gimple_build_call_internal (IFN_UNIQUE, nargs, | |
5766 | marker, ddvar, tofollow); | |
5767 | gimple_set_location (call, loc); | |
5768 | gimple_set_lhs (call, ddvar); | |
5769 | gimple_seq_add_stmt (seq, call); | |
5770 | } | |
5771 | ||
5772 | /* Generate the before and after OpenACC loop sequences. CLAUSES are | |
5773 | the loop clauses, from which we extract reductions. Initialize | |
5774 | HEAD and TAIL. */ | |
5775 | ||
5776 | static void | |
5777 | lower_oacc_head_tail (location_t loc, tree clauses, | |
5778 | gimple_seq *head, gimple_seq *tail, omp_context *ctx) | |
5779 | { | |
5780 | bool inner = false; | |
5781 | tree ddvar = create_tmp_var (integer_type_node, ".data_dep"); | |
5782 | gimple_seq_add_stmt (head, gimple_build_assign (ddvar, integer_zero_node)); | |
5783 | ||
5784 | unsigned count = lower_oacc_head_mark (loc, ddvar, clauses, head, ctx); | |
e4834818 NS |
5785 | tree fork_kind = build_int_cst (unsigned_type_node, IFN_UNIQUE_OACC_FORK); |
5786 | tree join_kind = build_int_cst (unsigned_type_node, IFN_UNIQUE_OACC_JOIN); | |
5787 | ||
4877b5a4 | 5788 | gcc_assert (count); |
e4834818 NS |
5789 | for (unsigned done = 1; count; count--, done++) |
5790 | { | |
5791 | gimple_seq fork_seq = NULL; | |
5792 | gimple_seq join_seq = NULL; | |
5793 | ||
5794 | tree place = build_int_cst (integer_type_node, -1); | |
5795 | gcall *fork = gimple_build_call_internal (IFN_UNIQUE, 3, | |
5796 | fork_kind, ddvar, place); | |
5797 | gimple_set_location (fork, loc); | |
5798 | gimple_set_lhs (fork, ddvar); | |
5799 | ||
5800 | gcall *join = gimple_build_call_internal (IFN_UNIQUE, 3, | |
5801 | join_kind, ddvar, place); | |
5802 | gimple_set_location (join, loc); | |
5803 | gimple_set_lhs (join, ddvar); | |
5804 | ||
5805 | /* Mark the beginning of this level sequence. */ | |
5806 | if (inner) | |
5807 | lower_oacc_loop_marker (loc, ddvar, true, | |
5808 | build_int_cst (integer_type_node, count), | |
5809 | &fork_seq); | |
5810 | lower_oacc_loop_marker (loc, ddvar, false, | |
5811 | build_int_cst (integer_type_node, done), | |
5812 | &join_seq); | |
5813 | ||
e5014671 NS |
5814 | lower_oacc_reductions (loc, clauses, place, inner, |
5815 | fork, join, &fork_seq, &join_seq, ctx); | |
e4834818 NS |
5816 | |
5817 | /* Append this level to head. */ | |
5818 | gimple_seq_add_seq (head, fork_seq); | |
5819 | /* Prepend it to tail. */ | |
5820 | gimple_seq_add_seq (&join_seq, *tail); | |
5821 | *tail = join_seq; | |
5822 | ||
5823 | inner = true; | |
5824 | } | |
5825 | ||
5826 | /* Mark the end of the sequence. */ | |
5827 | lower_oacc_loop_marker (loc, ddvar, true, NULL_TREE, head); | |
5828 | lower_oacc_loop_marker (loc, ddvar, false, NULL_TREE, tail); | |
5829 | } | |
726a989a | 5830 | |
629b3d75 MJ |
5831 | /* If exceptions are enabled, wrap the statements in BODY in a MUST_NOT_THROW |
5832 | catch handler and return it. This prevents programs from violating the | |
5833 | structured block semantics with throws. */ | |
726a989a | 5834 | |
629b3d75 MJ |
5835 | static gimple_seq |
5836 | maybe_catch_exception (gimple_seq body) | |
726a989a | 5837 | { |
629b3d75 MJ |
5838 | gimple *g; |
5839 | tree decl; | |
b2b40051 | 5840 | |
629b3d75 MJ |
5841 | if (!flag_exceptions) |
5842 | return body; | |
b2b40051 | 5843 | |
629b3d75 MJ |
5844 | if (lang_hooks.eh_protect_cleanup_actions != NULL) |
5845 | decl = lang_hooks.eh_protect_cleanup_actions (); | |
5846 | else | |
5847 | decl = builtin_decl_explicit (BUILT_IN_TRAP); | |
b2b40051 | 5848 | |
629b3d75 MJ |
5849 | g = gimple_build_eh_must_not_throw (decl); |
5850 | g = gimple_build_try (body, gimple_seq_alloc_with_stmt (g), | |
5851 | GIMPLE_TRY_CATCH); | |
b2b40051 | 5852 | |
629b3d75 | 5853 | return gimple_seq_alloc_with_stmt (g); |
b2b40051 MJ |
5854 | } |
5855 | ||
629b3d75 MJ |
5856 | \f |
5857 | /* Routines to lower OMP directives into OMP-GIMPLE. */ | |
726a989a | 5858 | |
629b3d75 MJ |
5859 | /* If ctx is a worksharing context inside of a cancellable parallel |
5860 | region and it isn't nowait, add lhs to its GIMPLE_OMP_RETURN | |
5861 | and conditional branch to parallel's cancel_label to handle | |
5862 | cancellation in the implicit barrier. */ | |
953ff289 DN |
5863 | |
5864 | static void | |
629b3d75 | 5865 | maybe_add_implicit_barrier_cancel (omp_context *ctx, gimple_seq *body) |
953ff289 | 5866 | { |
629b3d75 MJ |
5867 | gimple *omp_return = gimple_seq_last_stmt (*body); |
5868 | gcc_assert (gimple_code (omp_return) == GIMPLE_OMP_RETURN); | |
5869 | if (gimple_omp_return_nowait_p (omp_return)) | |
5870 | return; | |
5871 | if (ctx->outer | |
5872 | && gimple_code (ctx->outer->stmt) == GIMPLE_OMP_PARALLEL | |
5873 | && ctx->outer->cancellable) | |
50674e96 | 5874 | { |
629b3d75 MJ |
5875 | tree fndecl = builtin_decl_explicit (BUILT_IN_GOMP_CANCEL); |
5876 | tree c_bool_type = TREE_TYPE (TREE_TYPE (fndecl)); | |
5877 | tree lhs = create_tmp_var (c_bool_type); | |
5878 | gimple_omp_return_set_lhs (omp_return, lhs); | |
5879 | tree fallthru_label = create_artificial_label (UNKNOWN_LOCATION); | |
5880 | gimple *g = gimple_build_cond (NE_EXPR, lhs, | |
5881 | fold_convert (c_bool_type, | |
5882 | boolean_false_node), | |
5883 | ctx->outer->cancel_label, fallthru_label); | |
5884 | gimple_seq_add_stmt (body, g); | |
5885 | gimple_seq_add_stmt (body, gimple_build_label (fallthru_label)); | |
50674e96 | 5886 | } |
629b3d75 | 5887 | } |
953ff289 | 5888 | |
629b3d75 MJ |
5889 | /* Lower the OpenMP sections directive in the current statement in GSI_P. |
5890 | CTX is the enclosing OMP context for the current statement. */ | |
953ff289 | 5891 | |
629b3d75 MJ |
5892 | static void |
5893 | lower_omp_sections (gimple_stmt_iterator *gsi_p, omp_context *ctx) | |
5894 | { | |
5895 | tree block, control; | |
5896 | gimple_stmt_iterator tgsi; | |
5897 | gomp_sections *stmt; | |
5898 | gimple *t; | |
5899 | gbind *new_stmt, *bind; | |
5900 | gimple_seq ilist, dlist, olist, new_body; | |
953ff289 | 5901 | |
629b3d75 | 5902 | stmt = as_a <gomp_sections *> (gsi_stmt (*gsi_p)); |
953ff289 | 5903 | |
629b3d75 | 5904 | push_gimplify_context (); |
acf0174b | 5905 | |
629b3d75 MJ |
5906 | dlist = NULL; |
5907 | ilist = NULL; | |
5908 | lower_rec_input_clauses (gimple_omp_sections_clauses (stmt), | |
5909 | &ilist, &dlist, ctx, NULL); | |
953ff289 | 5910 | |
629b3d75 MJ |
5911 | new_body = gimple_omp_body (stmt); |
5912 | gimple_omp_set_body (stmt, NULL); | |
5913 | tgsi = gsi_start (new_body); | |
5914 | for (; !gsi_end_p (tgsi); gsi_next (&tgsi)) | |
953ff289 | 5915 | { |
629b3d75 MJ |
5916 | omp_context *sctx; |
5917 | gimple *sec_start; | |
50674e96 | 5918 | |
629b3d75 MJ |
5919 | sec_start = gsi_stmt (tgsi); |
5920 | sctx = maybe_lookup_ctx (sec_start); | |
5921 | gcc_assert (sctx); | |
5922 | ||
5923 | lower_omp (gimple_omp_body_ptr (sec_start), sctx); | |
5924 | gsi_insert_seq_after (&tgsi, gimple_omp_body (sec_start), | |
5925 | GSI_CONTINUE_LINKING); | |
5926 | gimple_omp_set_body (sec_start, NULL); | |
5927 | ||
5928 | if (gsi_one_before_end_p (tgsi)) | |
50674e96 | 5929 | { |
629b3d75 MJ |
5930 | gimple_seq l = NULL; |
5931 | lower_lastprivate_clauses (gimple_omp_sections_clauses (stmt), NULL, | |
5932 | &l, ctx); | |
5933 | gsi_insert_seq_after (&tgsi, l, GSI_CONTINUE_LINKING); | |
5934 | gimple_omp_section_set_last (sec_start); | |
5935 | } | |
917948d3 | 5936 | |
629b3d75 MJ |
5937 | gsi_insert_after (&tgsi, gimple_build_omp_return (false), |
5938 | GSI_CONTINUE_LINKING); | |
5939 | } | |
50674e96 | 5940 | |
629b3d75 MJ |
5941 | block = make_node (BLOCK); |
5942 | bind = gimple_build_bind (NULL, new_body, block); | |
50674e96 | 5943 | |
629b3d75 MJ |
5944 | olist = NULL; |
5945 | lower_reduction_clauses (gimple_omp_sections_clauses (stmt), &olist, ctx); | |
50674e96 | 5946 | |
629b3d75 MJ |
5947 | block = make_node (BLOCK); |
5948 | new_stmt = gimple_build_bind (NULL, NULL, block); | |
5949 | gsi_replace (gsi_p, new_stmt, true); | |
50674e96 | 5950 | |
629b3d75 MJ |
5951 | pop_gimplify_context (new_stmt); |
5952 | gimple_bind_append_vars (new_stmt, ctx->block_vars); | |
5953 | BLOCK_VARS (block) = gimple_bind_vars (bind); | |
5954 | if (BLOCK_VARS (block)) | |
5955 | TREE_USED (block) = 1; | |
50674e96 | 5956 | |
629b3d75 MJ |
5957 | new_body = NULL; |
5958 | gimple_seq_add_seq (&new_body, ilist); | |
5959 | gimple_seq_add_stmt (&new_body, stmt); | |
5960 | gimple_seq_add_stmt (&new_body, gimple_build_omp_sections_switch ()); | |
5961 | gimple_seq_add_stmt (&new_body, bind); | |
50674e96 | 5962 | |
629b3d75 MJ |
5963 | control = create_tmp_var (unsigned_type_node, ".section"); |
5964 | t = gimple_build_omp_continue (control, control); | |
5965 | gimple_omp_sections_set_control (stmt, control); | |
5966 | gimple_seq_add_stmt (&new_body, t); | |
50674e96 | 5967 | |
629b3d75 MJ |
5968 | gimple_seq_add_seq (&new_body, olist); |
5969 | if (ctx->cancellable) | |
5970 | gimple_seq_add_stmt (&new_body, gimple_build_label (ctx->cancel_label)); | |
5971 | gimple_seq_add_seq (&new_body, dlist); | |
917948d3 | 5972 | |
629b3d75 | 5973 | new_body = maybe_catch_exception (new_body); |
50674e96 | 5974 | |
01914336 MJ |
5975 | bool nowait = omp_find_clause (gimple_omp_sections_clauses (stmt), |
5976 | OMP_CLAUSE_NOWAIT) != NULL_TREE; | |
5977 | t = gimple_build_omp_return (nowait); | |
629b3d75 MJ |
5978 | gimple_seq_add_stmt (&new_body, t); |
5979 | maybe_add_implicit_barrier_cancel (ctx, &new_body); | |
953ff289 | 5980 | |
629b3d75 | 5981 | gimple_bind_set_body (new_stmt, new_body); |
953ff289 DN |
5982 | } |
5983 | ||
9a771876 | 5984 | |
629b3d75 MJ |
5985 | /* A subroutine of lower_omp_single. Expand the simple form of |
5986 | a GIMPLE_OMP_SINGLE, without a copyprivate clause: | |
9a771876 | 5987 | |
629b3d75 MJ |
5988 | if (GOMP_single_start ()) |
5989 | BODY; | |
5990 | [ GOMP_barrier (); ] -> unless 'nowait' is present. | |
9a771876 | 5991 | |
629b3d75 MJ |
5992 | FIXME. It may be better to delay expanding the logic of this until |
5993 | pass_expand_omp. The expanded logic may make the job more difficult | |
5994 | to a synchronization analysis pass. */ | |
a68ab351 JJ |
5995 | |
5996 | static void | |
629b3d75 | 5997 | lower_omp_single_simple (gomp_single *single_stmt, gimple_seq *pre_p) |
a68ab351 | 5998 | { |
629b3d75 MJ |
5999 | location_t loc = gimple_location (single_stmt); |
6000 | tree tlabel = create_artificial_label (loc); | |
6001 | tree flabel = create_artificial_label (loc); | |
6002 | gimple *call, *cond; | |
6003 | tree lhs, decl; | |
20906c66 | 6004 | |
629b3d75 MJ |
6005 | decl = builtin_decl_explicit (BUILT_IN_GOMP_SINGLE_START); |
6006 | lhs = create_tmp_var (TREE_TYPE (TREE_TYPE (decl))); | |
6007 | call = gimple_build_call (decl, 0); | |
6008 | gimple_call_set_lhs (call, lhs); | |
6009 | gimple_seq_add_stmt (pre_p, call); | |
a68ab351 | 6010 | |
629b3d75 MJ |
6011 | cond = gimple_build_cond (EQ_EXPR, lhs, |
6012 | fold_convert_loc (loc, TREE_TYPE (lhs), | |
6013 | boolean_true_node), | |
6014 | tlabel, flabel); | |
6015 | gimple_seq_add_stmt (pre_p, cond); | |
6016 | gimple_seq_add_stmt (pre_p, gimple_build_label (tlabel)); | |
6017 | gimple_seq_add_seq (pre_p, gimple_omp_body (single_stmt)); | |
6018 | gimple_seq_add_stmt (pre_p, gimple_build_label (flabel)); | |
a68ab351 JJ |
6019 | } |
6020 | ||
6021 | ||
629b3d75 MJ |
6022 | /* A subroutine of lower_omp_single. Expand the simple form of |
6023 | a GIMPLE_OMP_SINGLE, with a copyprivate clause: | |
953ff289 | 6024 | |
629b3d75 | 6025 | #pragma omp single copyprivate (a, b, c) |
953ff289 | 6026 | |
629b3d75 | 6027 | Create a new structure to hold copies of 'a', 'b' and 'c' and emit: |
953ff289 | 6028 | |
629b3d75 MJ |
6029 | { |
6030 | if ((copyout_p = GOMP_single_copy_start ()) == NULL) | |
6031 | { | |
6032 | BODY; | |
6033 | copyout.a = a; | |
6034 | copyout.b = b; | |
6035 | copyout.c = c; | |
6036 | GOMP_single_copy_end (©out); | |
6037 | } | |
6038 | else | |
6039 | { | |
6040 | a = copyout_p->a; | |
6041 | b = copyout_p->b; | |
6042 | c = copyout_p->c; | |
6043 | } | |
6044 | GOMP_barrier (); | |
6045 | } | |
726a989a | 6046 | |
629b3d75 MJ |
6047 | FIXME. It may be better to delay expanding the logic of this until |
6048 | pass_expand_omp. The expanded logic may make the job more difficult | |
6049 | to a synchronization analysis pass. */ | |
953ff289 | 6050 | |
629b3d75 MJ |
6051 | static void |
6052 | lower_omp_single_copy (gomp_single *single_stmt, gimple_seq *pre_p, | |
6053 | omp_context *ctx) | |
6054 | { | |
6055 | tree ptr_type, t, l0, l1, l2, bfn_decl; | |
6056 | gimple_seq copyin_seq; | |
6057 | location_t loc = gimple_location (single_stmt); | |
953ff289 | 6058 | |
629b3d75 | 6059 | ctx->sender_decl = create_tmp_var (ctx->record_type, ".omp_copy_o"); |
953ff289 | 6060 | |
629b3d75 MJ |
6061 | ptr_type = build_pointer_type (ctx->record_type); |
6062 | ctx->receiver_decl = create_tmp_var (ptr_type, ".omp_copy_i"); | |
953ff289 | 6063 | |
629b3d75 MJ |
6064 | l0 = create_artificial_label (loc); |
6065 | l1 = create_artificial_label (loc); | |
6066 | l2 = create_artificial_label (loc); | |
953ff289 | 6067 | |
629b3d75 MJ |
6068 | bfn_decl = builtin_decl_explicit (BUILT_IN_GOMP_SINGLE_COPY_START); |
6069 | t = build_call_expr_loc (loc, bfn_decl, 0); | |
6070 | t = fold_convert_loc (loc, ptr_type, t); | |
6071 | gimplify_assign (ctx->receiver_decl, t, pre_p); | |
953ff289 | 6072 | |
629b3d75 MJ |
6073 | t = build2 (EQ_EXPR, boolean_type_node, ctx->receiver_decl, |
6074 | build_int_cst (ptr_type, 0)); | |
6075 | t = build3 (COND_EXPR, void_type_node, t, | |
6076 | build_and_jump (&l0), build_and_jump (&l1)); | |
6077 | gimplify_and_add (t, pre_p); | |
953ff289 | 6078 | |
629b3d75 | 6079 | gimple_seq_add_stmt (pre_p, gimple_build_label (l0)); |
953ff289 | 6080 | |
629b3d75 | 6081 | gimple_seq_add_seq (pre_p, gimple_omp_body (single_stmt)); |
953ff289 | 6082 | |
629b3d75 MJ |
6083 | copyin_seq = NULL; |
6084 | lower_copyprivate_clauses (gimple_omp_single_clauses (single_stmt), pre_p, | |
6085 | ©in_seq, ctx); | |
953ff289 | 6086 | |
629b3d75 MJ |
6087 | t = build_fold_addr_expr_loc (loc, ctx->sender_decl); |
6088 | bfn_decl = builtin_decl_explicit (BUILT_IN_GOMP_SINGLE_COPY_END); | |
6089 | t = build_call_expr_loc (loc, bfn_decl, 1, t); | |
6090 | gimplify_and_add (t, pre_p); | |
2aee3e57 | 6091 | |
629b3d75 MJ |
6092 | t = build_and_jump (&l2); |
6093 | gimplify_and_add (t, pre_p); | |
953ff289 | 6094 | |
629b3d75 | 6095 | gimple_seq_add_stmt (pre_p, gimple_build_label (l1)); |
953ff289 | 6096 | |
629b3d75 | 6097 | gimple_seq_add_seq (pre_p, copyin_seq); |
777f7f9a | 6098 | |
629b3d75 | 6099 | gimple_seq_add_stmt (pre_p, gimple_build_label (l2)); |
777f7f9a | 6100 | } |
50674e96 | 6101 | |
629b3d75 MJ |
6102 | |
6103 | /* Expand code for an OpenMP single directive. */ | |
2b4cf991 JJ |
6104 | |
6105 | static void | |
629b3d75 | 6106 | lower_omp_single (gimple_stmt_iterator *gsi_p, omp_context *ctx) |
2b4cf991 | 6107 | { |
629b3d75 | 6108 | tree block; |
629b3d75 MJ |
6109 | gomp_single *single_stmt = as_a <gomp_single *> (gsi_stmt (*gsi_p)); |
6110 | gbind *bind; | |
6111 | gimple_seq bind_body, bind_body_tail = NULL, dlist; | |
2b4cf991 | 6112 | |
629b3d75 | 6113 | push_gimplify_context (); |
2b4cf991 | 6114 | |
629b3d75 MJ |
6115 | block = make_node (BLOCK); |
6116 | bind = gimple_build_bind (NULL, NULL, block); | |
6117 | gsi_replace (gsi_p, bind, true); | |
6118 | bind_body = NULL; | |
6119 | dlist = NULL; | |
6120 | lower_rec_input_clauses (gimple_omp_single_clauses (single_stmt), | |
6121 | &bind_body, &dlist, ctx, NULL); | |
6122 | lower_omp (gimple_omp_body_ptr (single_stmt), ctx); | |
2b4cf991 | 6123 | |
629b3d75 | 6124 | gimple_seq_add_stmt (&bind_body, single_stmt); |
2b4cf991 | 6125 | |
629b3d75 MJ |
6126 | if (ctx->record_type) |
6127 | lower_omp_single_copy (single_stmt, &bind_body, ctx); | |
6128 | else | |
6129 | lower_omp_single_simple (single_stmt, &bind_body); | |
2b4cf991 | 6130 | |
629b3d75 | 6131 | gimple_omp_set_body (single_stmt, NULL); |
2b4cf991 | 6132 | |
629b3d75 | 6133 | gimple_seq_add_seq (&bind_body, dlist); |
5a0f4dd3 | 6134 | |
629b3d75 | 6135 | bind_body = maybe_catch_exception (bind_body); |
5a0f4dd3 | 6136 | |
01914336 MJ |
6137 | bool nowait = omp_find_clause (gimple_omp_single_clauses (single_stmt), |
6138 | OMP_CLAUSE_NOWAIT) != NULL_TREE; | |
6139 | gimple *g = gimple_build_omp_return (nowait); | |
6140 | gimple_seq_add_stmt (&bind_body_tail, g); | |
629b3d75 MJ |
6141 | maybe_add_implicit_barrier_cancel (ctx, &bind_body_tail); |
6142 | if (ctx->record_type) | |
6143 | { | |
6144 | gimple_stmt_iterator gsi = gsi_start (bind_body_tail); | |
6145 | tree clobber = build_constructor (ctx->record_type, NULL); | |
6146 | TREE_THIS_VOLATILE (clobber) = 1; | |
6147 | gsi_insert_after (&gsi, gimple_build_assign (ctx->sender_decl, | |
6148 | clobber), GSI_SAME_STMT); | |
6149 | } | |
6150 | gimple_seq_add_seq (&bind_body, bind_body_tail); | |
6151 | gimple_bind_set_body (bind, bind_body); | |
5a0f4dd3 | 6152 | |
629b3d75 | 6153 | pop_gimplify_context (bind); |
5a0f4dd3 | 6154 | |
629b3d75 MJ |
6155 | gimple_bind_append_vars (bind, ctx->block_vars); |
6156 | BLOCK_VARS (block) = ctx->block_vars; | |
6157 | if (BLOCK_VARS (block)) | |
6158 | TREE_USED (block) = 1; | |
5a0f4dd3 JJ |
6159 | } |
6160 | ||
74bf76ed | 6161 | |
629b3d75 | 6162 | /* Expand code for an OpenMP master directive. */ |
953ff289 DN |
6163 | |
6164 | static void | |
629b3d75 | 6165 | lower_omp_master (gimple_stmt_iterator *gsi_p, omp_context *ctx) |
953ff289 | 6166 | { |
629b3d75 MJ |
6167 | tree block, lab = NULL, x, bfn_decl; |
6168 | gimple *stmt = gsi_stmt (*gsi_p); | |
6169 | gbind *bind; | |
6170 | location_t loc = gimple_location (stmt); | |
6171 | gimple_seq tseq; | |
50674e96 | 6172 | |
629b3d75 | 6173 | push_gimplify_context (); |
50674e96 | 6174 | |
629b3d75 MJ |
6175 | block = make_node (BLOCK); |
6176 | bind = gimple_build_bind (NULL, NULL, block); | |
6177 | gsi_replace (gsi_p, bind, true); | |
6178 | gimple_bind_add_stmt (bind, stmt); | |
50674e96 | 6179 | |
629b3d75 MJ |
6180 | bfn_decl = builtin_decl_explicit (BUILT_IN_OMP_GET_THREAD_NUM); |
6181 | x = build_call_expr_loc (loc, bfn_decl, 0); | |
6182 | x = build2 (EQ_EXPR, boolean_type_node, x, integer_zero_node); | |
6183 | x = build3 (COND_EXPR, void_type_node, x, NULL, build_and_jump (&lab)); | |
6184 | tseq = NULL; | |
6185 | gimplify_and_add (x, &tseq); | |
6186 | gimple_bind_add_seq (bind, tseq); | |
9a771876 | 6187 | |
629b3d75 MJ |
6188 | lower_omp (gimple_omp_body_ptr (stmt), ctx); |
6189 | gimple_omp_set_body (stmt, maybe_catch_exception (gimple_omp_body (stmt))); | |
6190 | gimple_bind_add_seq (bind, gimple_omp_body (stmt)); | |
6191 | gimple_omp_set_body (stmt, NULL); | |
b357f682 | 6192 | |
629b3d75 | 6193 | gimple_bind_add_stmt (bind, gimple_build_label (lab)); |
99819c63 | 6194 | |
629b3d75 | 6195 | gimple_bind_add_stmt (bind, gimple_build_omp_return (true)); |
e01d41e5 | 6196 | |
629b3d75 | 6197 | pop_gimplify_context (bind); |
b8698a0f | 6198 | |
629b3d75 MJ |
6199 | gimple_bind_append_vars (bind, ctx->block_vars); |
6200 | BLOCK_VARS (block) = ctx->block_vars; | |
953ff289 DN |
6201 | } |
6202 | ||
e4834818 | 6203 | |
629b3d75 | 6204 | /* Expand code for an OpenMP taskgroup directive. */ |
e4834818 | 6205 | |
629b3d75 MJ |
6206 | static void |
6207 | lower_omp_taskgroup (gimple_stmt_iterator *gsi_p, omp_context *ctx) | |
e4834818 | 6208 | { |
629b3d75 MJ |
6209 | gimple *stmt = gsi_stmt (*gsi_p); |
6210 | gcall *x; | |
6211 | gbind *bind; | |
6212 | tree block = make_node (BLOCK); | |
e4834818 | 6213 | |
629b3d75 MJ |
6214 | bind = gimple_build_bind (NULL, NULL, block); |
6215 | gsi_replace (gsi_p, bind, true); | |
6216 | gimple_bind_add_stmt (bind, stmt); | |
e4834818 | 6217 | |
629b3d75 MJ |
6218 | x = gimple_build_call (builtin_decl_explicit (BUILT_IN_GOMP_TASKGROUP_START), |
6219 | 0); | |
6220 | gimple_bind_add_stmt (bind, x); | |
e4834818 | 6221 | |
629b3d75 MJ |
6222 | lower_omp (gimple_omp_body_ptr (stmt), ctx); |
6223 | gimple_bind_add_seq (bind, gimple_omp_body (stmt)); | |
6224 | gimple_omp_set_body (stmt, NULL); | |
e4834818 | 6225 | |
629b3d75 | 6226 | gimple_bind_add_stmt (bind, gimple_build_omp_return (true)); |
e4834818 | 6227 | |
629b3d75 MJ |
6228 | gimple_bind_append_vars (bind, ctx->block_vars); |
6229 | BLOCK_VARS (block) = ctx->block_vars; | |
e4834818 NS |
6230 | } |
6231 | ||
50674e96 | 6232 | |
629b3d75 | 6233 | /* Fold the OMP_ORDERED_CLAUSES for the OMP_ORDERED in STMT if possible. */ |
74bf76ed JJ |
6234 | |
6235 | static void | |
629b3d75 MJ |
6236 | lower_omp_ordered_clauses (gimple_stmt_iterator *gsi_p, gomp_ordered *ord_stmt, |
6237 | omp_context *ctx) | |
74bf76ed | 6238 | { |
629b3d75 MJ |
6239 | struct omp_for_data fd; |
6240 | if (!ctx->outer || gimple_code (ctx->outer->stmt) != GIMPLE_OMP_FOR) | |
6241 | return; | |
74bf76ed | 6242 | |
629b3d75 MJ |
6243 | unsigned int len = gimple_omp_for_collapse (ctx->outer->stmt); |
6244 | struct omp_for_data_loop *loops = XALLOCAVEC (struct omp_for_data_loop, len); | |
6245 | omp_extract_for_data (as_a <gomp_for *> (ctx->outer->stmt), &fd, loops); | |
6246 | if (!fd.ordered) | |
6247 | return; | |
acf0174b | 6248 | |
629b3d75 MJ |
6249 | tree *list_p = gimple_omp_ordered_clauses_ptr (ord_stmt); |
6250 | tree c = gimple_omp_ordered_clauses (ord_stmt); | |
6251 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_DEPEND | |
6252 | && OMP_CLAUSE_DEPEND_KIND (c) == OMP_CLAUSE_DEPEND_SINK) | |
74bf76ed | 6253 | { |
629b3d75 MJ |
6254 | /* Merge depend clauses from multiple adjacent |
6255 | #pragma omp ordered depend(sink:...) constructs | |
6256 | into one #pragma omp ordered depend(sink:...), so that | |
6257 | we can optimize them together. */ | |
6258 | gimple_stmt_iterator gsi = *gsi_p; | |
6259 | gsi_next (&gsi); | |
6260 | while (!gsi_end_p (gsi)) | |
74bf76ed | 6261 | { |
629b3d75 MJ |
6262 | gimple *stmt = gsi_stmt (gsi); |
6263 | if (is_gimple_debug (stmt) | |
6264 | || gimple_code (stmt) == GIMPLE_NOP) | |
74bf76ed | 6265 | { |
629b3d75 MJ |
6266 | gsi_next (&gsi); |
6267 | continue; | |
74bf76ed | 6268 | } |
629b3d75 MJ |
6269 | if (gimple_code (stmt) != GIMPLE_OMP_ORDERED) |
6270 | break; | |
6271 | gomp_ordered *ord_stmt2 = as_a <gomp_ordered *> (stmt); | |
6272 | c = gimple_omp_ordered_clauses (ord_stmt2); | |
6273 | if (c == NULL_TREE | |
6274 | || OMP_CLAUSE_CODE (c) != OMP_CLAUSE_DEPEND | |
6275 | || OMP_CLAUSE_DEPEND_KIND (c) != OMP_CLAUSE_DEPEND_SINK) | |
6276 | break; | |
6277 | while (*list_p) | |
6278 | list_p = &OMP_CLAUSE_CHAIN (*list_p); | |
6279 | *list_p = c; | |
6280 | gsi_remove (&gsi, true); | |
74bf76ed JJ |
6281 | } |
6282 | } | |
74bf76ed | 6283 | |
629b3d75 MJ |
6284 | /* Canonicalize sink dependence clauses into one folded clause if |
6285 | possible. | |
74bf76ed | 6286 | |
629b3d75 MJ |
6287 | The basic algorithm is to create a sink vector whose first |
6288 | element is the GCD of all the first elements, and whose remaining | |
6289 | elements are the minimum of the subsequent columns. | |
74bf76ed | 6290 | |
629b3d75 MJ |
6291 | We ignore dependence vectors whose first element is zero because |
6292 | such dependencies are known to be executed by the same thread. | |
acf0174b | 6293 | |
629b3d75 MJ |
6294 | We take into account the direction of the loop, so a minimum |
6295 | becomes a maximum if the loop is iterating forwards. We also | |
6296 | ignore sink clauses where the loop direction is unknown, or where | |
6297 | the offsets are clearly invalid because they are not a multiple | |
6298 | of the loop increment. | |
6299 | ||
6300 | For example: | |
6301 | ||
6302 | #pragma omp for ordered(2) | |
6303 | for (i=0; i < N; ++i) | |
6304 | for (j=0; j < M; ++j) | |
acf0174b | 6305 | { |
629b3d75 MJ |
6306 | #pragma omp ordered \ |
6307 | depend(sink:i-8,j-2) \ | |
6308 | depend(sink:i,j-1) \ // Completely ignored because i+0. | |
6309 | depend(sink:i-4,j-3) \ | |
6310 | depend(sink:i-6,j-4) | |
6311 | #pragma omp ordered depend(source) | |
acf0174b | 6312 | } |
acf0174b | 6313 | |
629b3d75 | 6314 | Folded clause is: |
74bf76ed | 6315 | |
629b3d75 MJ |
6316 | depend(sink:-gcd(8,4,6),-min(2,3,4)) |
6317 | -or- | |
6318 | depend(sink:-2,-2) | |
6319 | */ | |
74bf76ed | 6320 | |
629b3d75 MJ |
6321 | /* FIXME: Computing GCD's where the first element is zero is |
6322 | non-trivial in the presence of collapsed loops. Do this later. */ | |
6323 | if (fd.collapse > 1) | |
6324 | return; | |
74bf76ed | 6325 | |
629b3d75 | 6326 | wide_int *folded_deps = XALLOCAVEC (wide_int, 2 * len - 1); |
c3684b7b MS |
6327 | |
6328 | /* wide_int is not a POD so it must be default-constructed. */ | |
6329 | for (unsigned i = 0; i != 2 * len - 1; ++i) | |
6330 | new (static_cast<void*>(folded_deps + i)) wide_int (); | |
6331 | ||
629b3d75 MJ |
6332 | tree folded_dep = NULL_TREE; |
6333 | /* TRUE if the first dimension's offset is negative. */ | |
6334 | bool neg_offset_p = false; | |
74bf76ed | 6335 | |
629b3d75 MJ |
6336 | list_p = gimple_omp_ordered_clauses_ptr (ord_stmt); |
6337 | unsigned int i; | |
6338 | while ((c = *list_p) != NULL) | |
74bf76ed | 6339 | { |
629b3d75 | 6340 | bool remove = false; |
74bf76ed | 6341 | |
629b3d75 MJ |
6342 | gcc_assert (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_DEPEND); |
6343 | if (OMP_CLAUSE_DEPEND_KIND (c) != OMP_CLAUSE_DEPEND_SINK) | |
6344 | goto next_ordered_clause; | |
74bf76ed | 6345 | |
629b3d75 MJ |
6346 | tree vec; |
6347 | for (vec = OMP_CLAUSE_DECL (c), i = 0; | |
6348 | vec && TREE_CODE (vec) == TREE_LIST; | |
6349 | vec = TREE_CHAIN (vec), ++i) | |
74bf76ed | 6350 | { |
629b3d75 | 6351 | gcc_assert (i < len); |
74bf76ed | 6352 | |
629b3d75 MJ |
6353 | /* omp_extract_for_data has canonicalized the condition. */ |
6354 | gcc_assert (fd.loops[i].cond_code == LT_EXPR | |
6355 | || fd.loops[i].cond_code == GT_EXPR); | |
6356 | bool forward = fd.loops[i].cond_code == LT_EXPR; | |
6357 | bool maybe_lexically_later = true; | |
953ff289 | 6358 | |
629b3d75 MJ |
6359 | /* While the committee makes up its mind, bail if we have any |
6360 | non-constant steps. */ | |
6361 | if (TREE_CODE (fd.loops[i].step) != INTEGER_CST) | |
6362 | goto lower_omp_ordered_ret; | |
953ff289 | 6363 | |
629b3d75 MJ |
6364 | tree itype = TREE_TYPE (TREE_VALUE (vec)); |
6365 | if (POINTER_TYPE_P (itype)) | |
6366 | itype = sizetype; | |
8e6cdc90 | 6367 | wide_int offset = wide_int::from (wi::to_wide (TREE_PURPOSE (vec)), |
629b3d75 MJ |
6368 | TYPE_PRECISION (itype), |
6369 | TYPE_SIGN (itype)); | |
a68ab351 | 6370 | |
629b3d75 | 6371 | /* Ignore invalid offsets that are not multiples of the step. */ |
8e6cdc90 RS |
6372 | if (!wi::multiple_of_p (wi::abs (offset), |
6373 | wi::abs (wi::to_wide (fd.loops[i].step)), | |
6374 | UNSIGNED)) | |
b4c3a85b | 6375 | { |
629b3d75 MJ |
6376 | warning_at (OMP_CLAUSE_LOCATION (c), 0, |
6377 | "ignoring sink clause with offset that is not " | |
6378 | "a multiple of the loop step"); | |
6379 | remove = true; | |
6380 | goto next_ordered_clause; | |
b4c3a85b | 6381 | } |
d9a6bd32 | 6382 | |
629b3d75 MJ |
6383 | /* Calculate the first dimension. The first dimension of |
6384 | the folded dependency vector is the GCD of the first | |
6385 | elements, while ignoring any first elements whose offset | |
6386 | is 0. */ | |
6387 | if (i == 0) | |
b4c3a85b | 6388 | { |
629b3d75 MJ |
6389 | /* Ignore dependence vectors whose first dimension is 0. */ |
6390 | if (offset == 0) | |
b4c3a85b | 6391 | { |
629b3d75 MJ |
6392 | remove = true; |
6393 | goto next_ordered_clause; | |
b4c3a85b | 6394 | } |
d9a6bd32 | 6395 | else |
629b3d75 MJ |
6396 | { |
6397 | if (!TYPE_UNSIGNED (itype) && (forward ^ wi::neg_p (offset))) | |
6398 | { | |
6399 | error_at (OMP_CLAUSE_LOCATION (c), | |
6400 | "first offset must be in opposite direction " | |
6401 | "of loop iterations"); | |
6402 | goto lower_omp_ordered_ret; | |
6403 | } | |
6404 | if (forward) | |
6405 | offset = -offset; | |
6406 | neg_offset_p = forward; | |
6407 | /* Initialize the first time around. */ | |
6408 | if (folded_dep == NULL_TREE) | |
6409 | { | |
6410 | folded_dep = c; | |
6411 | folded_deps[0] = offset; | |
6412 | } | |
6413 | else | |
6414 | folded_deps[0] = wi::gcd (folded_deps[0], | |
6415 | offset, UNSIGNED); | |
6416 | } | |
d9a6bd32 | 6417 | } |
629b3d75 | 6418 | /* Calculate minimum for the remaining dimensions. */ |
d9a6bd32 | 6419 | else |
d9a6bd32 | 6420 | { |
629b3d75 MJ |
6421 | folded_deps[len + i - 1] = offset; |
6422 | if (folded_dep == c) | |
6423 | folded_deps[i] = offset; | |
6424 | else if (maybe_lexically_later | |
6425 | && !wi::eq_p (folded_deps[i], offset)) | |
6426 | { | |
6427 | if (forward ^ wi::gts_p (folded_deps[i], offset)) | |
6428 | { | |
6429 | unsigned int j; | |
6430 | folded_dep = c; | |
6431 | for (j = 1; j <= i; j++) | |
6432 | folded_deps[j] = folded_deps[len + j - 1]; | |
6433 | } | |
6434 | else | |
6435 | maybe_lexically_later = false; | |
6436 | } | |
d9a6bd32 | 6437 | } |
d9a6bd32 | 6438 | } |
629b3d75 | 6439 | gcc_assert (i == len); |
d9a6bd32 | 6440 | |
629b3d75 MJ |
6441 | remove = true; |
6442 | ||
6443 | next_ordered_clause: | |
6444 | if (remove) | |
6445 | *list_p = OMP_CLAUSE_CHAIN (c); | |
d9a6bd32 | 6446 | else |
629b3d75 | 6447 | list_p = &OMP_CLAUSE_CHAIN (c); |
d9a6bd32 | 6448 | } |
d9a6bd32 | 6449 | |
629b3d75 | 6450 | if (folded_dep) |
d9a6bd32 | 6451 | { |
629b3d75 MJ |
6452 | if (neg_offset_p) |
6453 | folded_deps[0] = -folded_deps[0]; | |
d9a6bd32 | 6454 | |
629b3d75 MJ |
6455 | tree itype = TREE_TYPE (TREE_VALUE (OMP_CLAUSE_DECL (folded_dep))); |
6456 | if (POINTER_TYPE_P (itype)) | |
6457 | itype = sizetype; | |
6458 | ||
6459 | TREE_PURPOSE (OMP_CLAUSE_DECL (folded_dep)) | |
6460 | = wide_int_to_tree (itype, folded_deps[0]); | |
6461 | OMP_CLAUSE_CHAIN (folded_dep) = gimple_omp_ordered_clauses (ord_stmt); | |
6462 | *gimple_omp_ordered_clauses_ptr (ord_stmt) = folded_dep; | |
d9a6bd32 JJ |
6463 | } |
6464 | ||
629b3d75 | 6465 | lower_omp_ordered_ret: |
d9a6bd32 | 6466 | |
629b3d75 MJ |
6467 | /* Ordered without clauses is #pragma omp threads, while we want |
6468 | a nop instead if we remove all clauses. */ | |
6469 | if (gimple_omp_ordered_clauses (ord_stmt) == NULL_TREE) | |
6470 | gsi_replace (gsi_p, gimple_build_nop (), true); | |
d9a6bd32 JJ |
6471 | } |
6472 | ||
6473 | ||
629b3d75 | 6474 | /* Expand code for an OpenMP ordered directive. */ |
953ff289 | 6475 | |
777f7f9a | 6476 | static void |
629b3d75 | 6477 | lower_omp_ordered (gimple_stmt_iterator *gsi_p, omp_context *ctx) |
953ff289 | 6478 | { |
629b3d75 MJ |
6479 | tree block; |
6480 | gimple *stmt = gsi_stmt (*gsi_p), *g; | |
6481 | gomp_ordered *ord_stmt = as_a <gomp_ordered *> (stmt); | |
6482 | gcall *x; | |
6483 | gbind *bind; | |
6484 | bool simd = omp_find_clause (gimple_omp_ordered_clauses (ord_stmt), | |
6485 | OMP_CLAUSE_SIMD); | |
6486 | /* FIXME: this should check presence of OMP_CLAUSE__SIMT_ on the enclosing | |
6487 | loop. */ | |
6488 | bool maybe_simt | |
6489 | = simd && omp_maybe_offloaded_ctx (ctx) && omp_max_simt_vf () > 1; | |
6490 | bool threads = omp_find_clause (gimple_omp_ordered_clauses (ord_stmt), | |
6491 | OMP_CLAUSE_THREADS); | |
d9a6bd32 | 6492 | |
629b3d75 MJ |
6493 | if (omp_find_clause (gimple_omp_ordered_clauses (ord_stmt), |
6494 | OMP_CLAUSE_DEPEND)) | |
d9a6bd32 | 6495 | { |
629b3d75 MJ |
6496 | /* FIXME: This is needs to be moved to the expansion to verify various |
6497 | conditions only testable on cfg with dominators computed, and also | |
6498 | all the depend clauses to be merged still might need to be available | |
6499 | for the runtime checks. */ | |
6500 | if (0) | |
6501 | lower_omp_ordered_clauses (gsi_p, ord_stmt, ctx); | |
6502 | return; | |
a68ab351 | 6503 | } |
d9a6bd32 | 6504 | |
629b3d75 MJ |
6505 | push_gimplify_context (); |
6506 | ||
6507 | block = make_node (BLOCK); | |
6508 | bind = gimple_build_bind (NULL, NULL, block); | |
6509 | gsi_replace (gsi_p, bind, true); | |
6510 | gimple_bind_add_stmt (bind, stmt); | |
d9a6bd32 | 6511 | |
629b3d75 | 6512 | if (simd) |
917948d3 | 6513 | { |
629b3d75 MJ |
6514 | x = gimple_build_call_internal (IFN_GOMP_SIMD_ORDERED_START, 1, |
6515 | build_int_cst (NULL_TREE, threads)); | |
6516 | cfun->has_simduid_loops = true; | |
917948d3 ZD |
6517 | } |
6518 | else | |
629b3d75 MJ |
6519 | x = gimple_build_call (builtin_decl_explicit (BUILT_IN_GOMP_ORDERED_START), |
6520 | 0); | |
6521 | gimple_bind_add_stmt (bind, x); | |
6522 | ||
6523 | tree counter = NULL_TREE, test = NULL_TREE, body = NULL_TREE; | |
6524 | if (maybe_simt) | |
953ff289 | 6525 | { |
629b3d75 MJ |
6526 | counter = create_tmp_var (integer_type_node); |
6527 | g = gimple_build_call_internal (IFN_GOMP_SIMT_LANE, 0); | |
6528 | gimple_call_set_lhs (g, counter); | |
6529 | gimple_bind_add_stmt (bind, g); | |
d9a6bd32 | 6530 | |
629b3d75 MJ |
6531 | body = create_artificial_label (UNKNOWN_LOCATION); |
6532 | test = create_artificial_label (UNKNOWN_LOCATION); | |
6533 | gimple_bind_add_stmt (bind, gimple_build_label (body)); | |
953ff289 | 6534 | |
629b3d75 MJ |
6535 | tree simt_pred = create_tmp_var (integer_type_node); |
6536 | g = gimple_build_call_internal (IFN_GOMP_SIMT_ORDERED_PRED, 1, counter); | |
6537 | gimple_call_set_lhs (g, simt_pred); | |
6538 | gimple_bind_add_stmt (bind, g); | |
d9a6bd32 | 6539 | |
629b3d75 MJ |
6540 | tree t = create_artificial_label (UNKNOWN_LOCATION); |
6541 | g = gimple_build_cond (EQ_EXPR, simt_pred, integer_zero_node, t, test); | |
6542 | gimple_bind_add_stmt (bind, g); | |
74bf76ed | 6543 | |
629b3d75 | 6544 | gimple_bind_add_stmt (bind, gimple_build_label (t)); |
acf0174b | 6545 | } |
629b3d75 MJ |
6546 | lower_omp (gimple_omp_body_ptr (stmt), ctx); |
6547 | gimple_omp_set_body (stmt, maybe_catch_exception (gimple_omp_body (stmt))); | |
6548 | gimple_bind_add_seq (bind, gimple_omp_body (stmt)); | |
6549 | gimple_omp_set_body (stmt, NULL); | |
acf0174b | 6550 | |
629b3d75 | 6551 | if (maybe_simt) |
d9a6bd32 | 6552 | { |
629b3d75 MJ |
6553 | gimple_bind_add_stmt (bind, gimple_build_label (test)); |
6554 | g = gimple_build_assign (counter, MINUS_EXPR, counter, integer_one_node); | |
6555 | gimple_bind_add_stmt (bind, g); | |
50674e96 | 6556 | |
629b3d75 MJ |
6557 | tree c = build2 (GE_EXPR, boolean_type_node, counter, integer_zero_node); |
6558 | tree nonneg = create_tmp_var (integer_type_node); | |
6559 | gimple_seq tseq = NULL; | |
6560 | gimplify_assign (nonneg, fold_convert (integer_type_node, c), &tseq); | |
6561 | gimple_bind_add_seq (bind, tseq); | |
d9a6bd32 | 6562 | |
629b3d75 MJ |
6563 | g = gimple_build_call_internal (IFN_GOMP_SIMT_VOTE_ANY, 1, nonneg); |
6564 | gimple_call_set_lhs (g, nonneg); | |
6565 | gimple_bind_add_stmt (bind, g); | |
d9a6bd32 | 6566 | |
629b3d75 MJ |
6567 | tree end = create_artificial_label (UNKNOWN_LOCATION); |
6568 | g = gimple_build_cond (NE_EXPR, nonneg, integer_zero_node, body, end); | |
6569 | gimple_bind_add_stmt (bind, g); | |
50674e96 | 6570 | |
629b3d75 | 6571 | gimple_bind_add_stmt (bind, gimple_build_label (end)); |
e5c95afe | 6572 | } |
629b3d75 MJ |
6573 | if (simd) |
6574 | x = gimple_build_call_internal (IFN_GOMP_SIMD_ORDERED_END, 1, | |
6575 | build_int_cst (NULL_TREE, threads)); | |
777f7f9a | 6576 | else |
629b3d75 MJ |
6577 | x = gimple_build_call (builtin_decl_explicit (BUILT_IN_GOMP_ORDERED_END), |
6578 | 0); | |
6579 | gimple_bind_add_stmt (bind, x); | |
917948d3 | 6580 | |
629b3d75 | 6581 | gimple_bind_add_stmt (bind, gimple_build_omp_return (true)); |
917948d3 | 6582 | |
629b3d75 | 6583 | pop_gimplify_context (bind); |
917948d3 | 6584 | |
629b3d75 MJ |
6585 | gimple_bind_append_vars (bind, ctx->block_vars); |
6586 | BLOCK_VARS (block) = gimple_bind_vars (bind); | |
6587 | } | |
56102c7f | 6588 | |
56102c7f | 6589 | |
629b3d75 MJ |
6590 | /* Gimplify a GIMPLE_OMP_CRITICAL statement. This is a relatively simple |
6591 | substitution of a couple of function calls. But in the NAMED case, | |
6592 | requires that languages coordinate a symbol name. It is therefore | |
6593 | best put here in common code. */ | |
56102c7f | 6594 | |
629b3d75 | 6595 | static GTY(()) hash_map<tree, tree> *critical_name_mutexes; |
56102c7f | 6596 | |
629b3d75 MJ |
6597 | static void |
6598 | lower_omp_critical (gimple_stmt_iterator *gsi_p, omp_context *ctx) | |
6599 | { | |
6600 | tree block; | |
6601 | tree name, lock, unlock; | |
6602 | gomp_critical *stmt = as_a <gomp_critical *> (gsi_stmt (*gsi_p)); | |
6603 | gbind *bind; | |
6604 | location_t loc = gimple_location (stmt); | |
6605 | gimple_seq tbody; | |
56102c7f | 6606 | |
629b3d75 MJ |
6607 | name = gimple_omp_critical_name (stmt); |
6608 | if (name) | |
6609 | { | |
6610 | tree decl; | |
56102c7f | 6611 | |
629b3d75 MJ |
6612 | if (!critical_name_mutexes) |
6613 | critical_name_mutexes = hash_map<tree, tree>::create_ggc (10); | |
56102c7f | 6614 | |
629b3d75 MJ |
6615 | tree *n = critical_name_mutexes->get (name); |
6616 | if (n == NULL) | |
74bf76ed | 6617 | { |
629b3d75 | 6618 | char *new_str; |
953ff289 | 6619 | |
629b3d75 | 6620 | decl = create_tmp_var_raw (ptr_type_node); |
953ff289 | 6621 | |
629b3d75 MJ |
6622 | new_str = ACONCAT ((".gomp_critical_user_", |
6623 | IDENTIFIER_POINTER (name), NULL)); | |
6624 | DECL_NAME (decl) = get_identifier (new_str); | |
6625 | TREE_PUBLIC (decl) = 1; | |
6626 | TREE_STATIC (decl) = 1; | |
6627 | DECL_COMMON (decl) = 1; | |
6628 | DECL_ARTIFICIAL (decl) = 1; | |
6629 | DECL_IGNORED_P (decl) = 1; | |
953ff289 | 6630 | |
629b3d75 | 6631 | varpool_node::finalize_decl (decl); |
953ff289 | 6632 | |
629b3d75 MJ |
6633 | critical_name_mutexes->put (name, decl); |
6634 | } | |
6635 | else | |
6636 | decl = *n; | |
953ff289 | 6637 | |
629b3d75 MJ |
6638 | /* If '#pragma omp critical' is inside offloaded region or |
6639 | inside function marked as offloadable, the symbol must be | |
6640 | marked as offloadable too. */ | |
6641 | omp_context *octx; | |
6642 | if (cgraph_node::get (current_function_decl)->offloadable) | |
6643 | varpool_node::get_create (decl)->offloadable = 1; | |
6644 | else | |
6645 | for (octx = ctx->outer; octx; octx = octx->outer) | |
6646 | if (is_gimple_omp_offloaded (octx->stmt)) | |
6647 | { | |
6648 | varpool_node::get_create (decl)->offloadable = 1; | |
6649 | break; | |
6650 | } | |
777f7f9a | 6651 | |
629b3d75 | 6652 | lock = builtin_decl_explicit (BUILT_IN_GOMP_CRITICAL_NAME_START); |
01914336 MJ |
6653 | lock = build_call_expr_loc (loc, lock, 1, |
6654 | build_fold_addr_expr_loc (loc, decl)); | |
777f7f9a | 6655 | |
629b3d75 MJ |
6656 | unlock = builtin_decl_explicit (BUILT_IN_GOMP_CRITICAL_NAME_END); |
6657 | unlock = build_call_expr_loc (loc, unlock, 1, | |
6658 | build_fold_addr_expr_loc (loc, decl)); | |
acf0174b | 6659 | } |
acf0174b | 6660 | else |
5a0f4dd3 | 6661 | { |
629b3d75 MJ |
6662 | lock = builtin_decl_explicit (BUILT_IN_GOMP_CRITICAL_START); |
6663 | lock = build_call_expr_loc (loc, lock, 0); | |
5a0f4dd3 | 6664 | |
629b3d75 MJ |
6665 | unlock = builtin_decl_explicit (BUILT_IN_GOMP_CRITICAL_END); |
6666 | unlock = build_call_expr_loc (loc, unlock, 0); | |
acf0174b | 6667 | } |
953ff289 | 6668 | |
629b3d75 | 6669 | push_gimplify_context (); |
fb79f500 | 6670 | |
629b3d75 MJ |
6671 | block = make_node (BLOCK); |
6672 | bind = gimple_build_bind (NULL, NULL, block); | |
6673 | gsi_replace (gsi_p, bind, true); | |
6674 | gimple_bind_add_stmt (bind, stmt); | |
fb79f500 | 6675 | |
629b3d75 MJ |
6676 | tbody = gimple_bind_body (bind); |
6677 | gimplify_and_add (lock, &tbody); | |
6678 | gimple_bind_set_body (bind, tbody); | |
fb79f500 | 6679 | |
629b3d75 MJ |
6680 | lower_omp (gimple_omp_body_ptr (stmt), ctx); |
6681 | gimple_omp_set_body (stmt, maybe_catch_exception (gimple_omp_body (stmt))); | |
6682 | gimple_bind_add_seq (bind, gimple_omp_body (stmt)); | |
6683 | gimple_omp_set_body (stmt, NULL); | |
953ff289 | 6684 | |
629b3d75 MJ |
6685 | tbody = gimple_bind_body (bind); |
6686 | gimplify_and_add (unlock, &tbody); | |
6687 | gimple_bind_set_body (bind, tbody); | |
953ff289 | 6688 | |
629b3d75 | 6689 | gimple_bind_add_stmt (bind, gimple_build_omp_return (true)); |
917948d3 | 6690 | |
629b3d75 MJ |
6691 | pop_gimplify_context (bind); |
6692 | gimple_bind_append_vars (bind, ctx->block_vars); | |
6693 | BLOCK_VARS (block) = gimple_bind_vars (bind); | |
6694 | } | |
50674e96 | 6695 | |
629b3d75 MJ |
6696 | /* A subroutine of lower_omp_for. Generate code to emit the predicate |
6697 | for a lastprivate clause. Given a loop control predicate of (V | |
6698 | cond N2), we gate the clause on (!(V cond N2)). The lowered form | |
6699 | is appended to *DLIST, iterator initialization is appended to | |
6700 | *BODY_P. */ | |
50674e96 | 6701 | |
629b3d75 MJ |
6702 | static void |
6703 | lower_omp_for_lastprivate (struct omp_for_data *fd, gimple_seq *body_p, | |
6704 | gimple_seq *dlist, struct omp_context *ctx) | |
6705 | { | |
6706 | tree clauses, cond, vinit; | |
6707 | enum tree_code cond_code; | |
6708 | gimple_seq stmts; | |
953ff289 | 6709 | |
629b3d75 MJ |
6710 | cond_code = fd->loop.cond_code; |
6711 | cond_code = cond_code == LT_EXPR ? GE_EXPR : LE_EXPR; | |
acf0174b | 6712 | |
629b3d75 MJ |
6713 | /* When possible, use a strict equality expression. This can let VRP |
6714 | type optimizations deduce the value and remove a copy. */ | |
6715 | if (tree_fits_shwi_p (fd->loop.step)) | |
acf0174b | 6716 | { |
629b3d75 MJ |
6717 | HOST_WIDE_INT step = tree_to_shwi (fd->loop.step); |
6718 | if (step == 1 || step == -1) | |
6719 | cond_code = EQ_EXPR; | |
acf0174b | 6720 | } |
629b3d75 MJ |
6721 | |
6722 | if (gimple_omp_for_kind (fd->for_stmt) == GF_OMP_FOR_KIND_GRID_LOOP | |
6723 | || gimple_omp_for_grid_phony (fd->for_stmt)) | |
6724 | cond = omp_grid_lastprivate_predicate (fd); | |
a68ab351 | 6725 | else |
acf0174b | 6726 | { |
629b3d75 MJ |
6727 | tree n2 = fd->loop.n2; |
6728 | if (fd->collapse > 1 | |
6729 | && TREE_CODE (n2) != INTEGER_CST | |
6730 | && gimple_omp_for_combined_into_p (fd->for_stmt)) | |
d9a6bd32 | 6731 | { |
629b3d75 MJ |
6732 | struct omp_context *taskreg_ctx = NULL; |
6733 | if (gimple_code (ctx->outer->stmt) == GIMPLE_OMP_FOR) | |
d9a6bd32 | 6734 | { |
629b3d75 MJ |
6735 | gomp_for *gfor = as_a <gomp_for *> (ctx->outer->stmt); |
6736 | if (gimple_omp_for_kind (gfor) == GF_OMP_FOR_KIND_FOR | |
6737 | || gimple_omp_for_kind (gfor) == GF_OMP_FOR_KIND_DISTRIBUTE) | |
d9a6bd32 | 6738 | { |
629b3d75 MJ |
6739 | if (gimple_omp_for_combined_into_p (gfor)) |
6740 | { | |
6741 | gcc_assert (ctx->outer->outer | |
6742 | && is_parallel_ctx (ctx->outer->outer)); | |
6743 | taskreg_ctx = ctx->outer->outer; | |
6744 | } | |
6745 | else | |
6746 | { | |
6747 | struct omp_for_data outer_fd; | |
6748 | omp_extract_for_data (gfor, &outer_fd, NULL); | |
6749 | n2 = fold_convert (TREE_TYPE (n2), outer_fd.loop.n2); | |
6750 | } | |
d9a6bd32 | 6751 | } |
629b3d75 MJ |
6752 | else if (gimple_omp_for_kind (gfor) == GF_OMP_FOR_KIND_TASKLOOP) |
6753 | taskreg_ctx = ctx->outer->outer; | |
6754 | } | |
6755 | else if (is_taskreg_ctx (ctx->outer)) | |
6756 | taskreg_ctx = ctx->outer; | |
6757 | if (taskreg_ctx) | |
6758 | { | |
6759 | int i; | |
6760 | tree taskreg_clauses | |
6761 | = gimple_omp_taskreg_clauses (taskreg_ctx->stmt); | |
6762 | tree innerc = omp_find_clause (taskreg_clauses, | |
6763 | OMP_CLAUSE__LOOPTEMP_); | |
6764 | gcc_assert (innerc); | |
6765 | for (i = 0; i < fd->collapse; i++) | |
6766 | { | |
6767 | innerc = omp_find_clause (OMP_CLAUSE_CHAIN (innerc), | |
6768 | OMP_CLAUSE__LOOPTEMP_); | |
6769 | gcc_assert (innerc); | |
6770 | } | |
6771 | innerc = omp_find_clause (OMP_CLAUSE_CHAIN (innerc), | |
6772 | OMP_CLAUSE__LOOPTEMP_); | |
6773 | if (innerc) | |
6774 | n2 = fold_convert (TREE_TYPE (n2), | |
6775 | lookup_decl (OMP_CLAUSE_DECL (innerc), | |
6776 | taskreg_ctx)); | |
d9a6bd32 | 6777 | } |
acf0174b | 6778 | } |
629b3d75 | 6779 | cond = build2 (cond_code, boolean_type_node, fd->loop.v, n2); |
acf0174b | 6780 | } |
50674e96 | 6781 | |
629b3d75 MJ |
6782 | clauses = gimple_omp_for_clauses (fd->for_stmt); |
6783 | stmts = NULL; | |
6784 | lower_lastprivate_clauses (clauses, cond, &stmts, ctx); | |
6785 | if (!gimple_seq_empty_p (stmts)) | |
acf0174b | 6786 | { |
629b3d75 MJ |
6787 | gimple_seq_add_seq (&stmts, *dlist); |
6788 | *dlist = stmts; | |
6093bc06 | 6789 | |
629b3d75 MJ |
6790 | /* Optimize: v = 0; is usually cheaper than v = some_other_constant. */ |
6791 | vinit = fd->loop.n1; | |
6792 | if (cond_code == EQ_EXPR | |
6793 | && tree_fits_shwi_p (fd->loop.n2) | |
6794 | && ! integer_zerop (fd->loop.n2)) | |
6795 | vinit = build_int_cst (TREE_TYPE (fd->loop.v), 0); | |
6796 | else | |
6797 | vinit = unshare_expr (vinit); | |
e67d7a1e | 6798 | |
629b3d75 MJ |
6799 | /* Initialize the iterator variable, so that threads that don't execute |
6800 | any iterations don't execute the lastprivate clauses by accident. */ | |
6801 | gimplify_assign (fd->loop.v, vinit, body_p); | |
acf0174b | 6802 | } |
953ff289 DN |
6803 | } |
6804 | ||
1b96e9a4 | 6805 | |
629b3d75 | 6806 | /* Lower code for an OMP loop directive. */ |
50674e96 | 6807 | |
629b3d75 MJ |
6808 | static void |
6809 | lower_omp_for (gimple_stmt_iterator *gsi_p, omp_context *ctx) | |
6810 | { | |
6811 | tree *rhs_p, block; | |
6812 | struct omp_for_data fd, *fdp = NULL; | |
6813 | gomp_for *stmt = as_a <gomp_for *> (gsi_stmt (*gsi_p)); | |
6814 | gbind *new_stmt; | |
6815 | gimple_seq omp_for_body, body, dlist; | |
6816 | gimple_seq oacc_head = NULL, oacc_tail = NULL; | |
6817 | size_t i; | |
953ff289 | 6818 | |
629b3d75 | 6819 | push_gimplify_context (); |
953ff289 | 6820 | |
629b3d75 | 6821 | lower_omp (gimple_omp_for_pre_body_ptr (stmt), ctx); |
953ff289 | 6822 | |
629b3d75 MJ |
6823 | block = make_node (BLOCK); |
6824 | new_stmt = gimple_build_bind (NULL, NULL, block); | |
6825 | /* Replace at gsi right away, so that 'stmt' is no member | |
6826 | of a sequence anymore as we're going to add to a different | |
6827 | one below. */ | |
6828 | gsi_replace (gsi_p, new_stmt, true); | |
953ff289 | 6829 | |
629b3d75 MJ |
6830 | /* Move declaration of temporaries in the loop body before we make |
6831 | it go away. */ | |
6832 | omp_for_body = gimple_omp_body (stmt); | |
6833 | if (!gimple_seq_empty_p (omp_for_body) | |
6834 | && gimple_code (gimple_seq_first_stmt (omp_for_body)) == GIMPLE_BIND) | |
acf0174b | 6835 | { |
629b3d75 MJ |
6836 | gbind *inner_bind |
6837 | = as_a <gbind *> (gimple_seq_first_stmt (omp_for_body)); | |
6838 | tree vars = gimple_bind_vars (inner_bind); | |
6839 | gimple_bind_append_vars (new_stmt, vars); | |
6840 | /* bind_vars/BLOCK_VARS are being moved to new_stmt/block, don't | |
6841 | keep them on the inner_bind and it's block. */ | |
6842 | gimple_bind_set_vars (inner_bind, NULL_TREE); | |
6843 | if (gimple_bind_block (inner_bind)) | |
6844 | BLOCK_VARS (gimple_bind_block (inner_bind)) = NULL_TREE; | |
acf0174b | 6845 | } |
50674e96 | 6846 | |
629b3d75 | 6847 | if (gimple_omp_for_combined_into_p (stmt)) |
5a0f4dd3 | 6848 | { |
629b3d75 MJ |
6849 | omp_extract_for_data (stmt, &fd, NULL); |
6850 | fdp = &fd; | |
6851 | ||
6852 | /* We need two temporaries with fd.loop.v type (istart/iend) | |
6853 | and then (fd.collapse - 1) temporaries with the same | |
6854 | type for count2 ... countN-1 vars if not constant. */ | |
6855 | size_t count = 2; | |
6856 | tree type = fd.iter_type; | |
6857 | if (fd.collapse > 1 | |
6858 | && TREE_CODE (fd.loop.n2) != INTEGER_CST) | |
6859 | count += fd.collapse - 1; | |
6860 | bool taskreg_for | |
6861 | = (gimple_omp_for_kind (stmt) == GF_OMP_FOR_KIND_FOR | |
6862 | || gimple_omp_for_kind (stmt) == GF_OMP_FOR_KIND_TASKLOOP); | |
6863 | tree outerc = NULL, *pc = gimple_omp_for_clauses_ptr (stmt); | |
6e6cf7b0 | 6864 | tree simtc = NULL; |
629b3d75 MJ |
6865 | tree clauses = *pc; |
6866 | if (taskreg_for) | |
6867 | outerc | |
6868 | = omp_find_clause (gimple_omp_taskreg_clauses (ctx->outer->stmt), | |
6869 | OMP_CLAUSE__LOOPTEMP_); | |
6e6cf7b0 JJ |
6870 | if (ctx->simt_stmt) |
6871 | simtc = omp_find_clause (gimple_omp_for_clauses (ctx->simt_stmt), | |
6872 | OMP_CLAUSE__LOOPTEMP_); | |
629b3d75 | 6873 | for (i = 0; i < count; i++) |
5a0f4dd3 | 6874 | { |
629b3d75 MJ |
6875 | tree temp; |
6876 | if (taskreg_for) | |
6877 | { | |
6878 | gcc_assert (outerc); | |
6879 | temp = lookup_decl (OMP_CLAUSE_DECL (outerc), ctx->outer); | |
6880 | outerc = omp_find_clause (OMP_CLAUSE_CHAIN (outerc), | |
6881 | OMP_CLAUSE__LOOPTEMP_); | |
6882 | } | |
6883 | else | |
5a0f4dd3 | 6884 | { |
6e6cf7b0 JJ |
6885 | /* If there are 2 adjacent SIMD stmts, one with _simt_ |
6886 | clause, another without, make sure they have the same | |
6887 | decls in _looptemp_ clauses, because the outer stmt | |
6888 | they are combined into will look up just one inner_stmt. */ | |
6889 | if (ctx->simt_stmt) | |
6890 | temp = OMP_CLAUSE_DECL (simtc); | |
6891 | else | |
6892 | temp = create_tmp_var (type); | |
629b3d75 | 6893 | insert_decl_map (&ctx->outer->cb, temp, temp); |
5a0f4dd3 | 6894 | } |
629b3d75 MJ |
6895 | *pc = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE__LOOPTEMP_); |
6896 | OMP_CLAUSE_DECL (*pc) = temp; | |
6897 | pc = &OMP_CLAUSE_CHAIN (*pc); | |
6e6cf7b0 JJ |
6898 | if (ctx->simt_stmt) |
6899 | simtc = omp_find_clause (OMP_CLAUSE_CHAIN (simtc), | |
6900 | OMP_CLAUSE__LOOPTEMP_); | |
5a0f4dd3 | 6901 | } |
629b3d75 | 6902 | *pc = clauses; |
5a0f4dd3 JJ |
6903 | } |
6904 | ||
629b3d75 MJ |
6905 | /* The pre-body and input clauses go before the lowered GIMPLE_OMP_FOR. */ |
6906 | dlist = NULL; | |
6907 | body = NULL; | |
6908 | lower_rec_input_clauses (gimple_omp_for_clauses (stmt), &body, &dlist, ctx, | |
6909 | fdp); | |
6910 | gimple_seq_add_seq (&body, gimple_omp_for_pre_body (stmt)); | |
917948d3 | 6911 | |
629b3d75 | 6912 | lower_omp (gimple_omp_body_ptr (stmt), ctx); |
953ff289 | 6913 | |
629b3d75 MJ |
6914 | /* Lower the header expressions. At this point, we can assume that |
6915 | the header is of the form: | |
50674e96 | 6916 | |
629b3d75 | 6917 | #pragma omp for (V = VAL1; V {<|>|<=|>=} VAL2; V = V [+-] VAL3) |
917948d3 | 6918 | |
629b3d75 MJ |
6919 | We just need to make sure that VAL1, VAL2 and VAL3 are lowered |
6920 | using the .omp_data_s mapping, if needed. */ | |
6921 | for (i = 0; i < gimple_omp_for_collapse (stmt); i++) | |
6922 | { | |
6923 | rhs_p = gimple_omp_for_initial_ptr (stmt, i); | |
6924 | if (!is_gimple_min_invariant (*rhs_p)) | |
6925 | *rhs_p = get_formal_tmp_var (*rhs_p, &body); | |
0fe4bc78 JJ |
6926 | else if (TREE_CODE (*rhs_p) == ADDR_EXPR) |
6927 | recompute_tree_invariant_for_addr_expr (*rhs_p); | |
50674e96 | 6928 | |
629b3d75 MJ |
6929 | rhs_p = gimple_omp_for_final_ptr (stmt, i); |
6930 | if (!is_gimple_min_invariant (*rhs_p)) | |
6931 | *rhs_p = get_formal_tmp_var (*rhs_p, &body); | |
0fe4bc78 JJ |
6932 | else if (TREE_CODE (*rhs_p) == ADDR_EXPR) |
6933 | recompute_tree_invariant_for_addr_expr (*rhs_p); | |
d9a6bd32 | 6934 | |
629b3d75 MJ |
6935 | rhs_p = &TREE_OPERAND (gimple_omp_for_incr (stmt, i), 1); |
6936 | if (!is_gimple_min_invariant (*rhs_p)) | |
6937 | *rhs_p = get_formal_tmp_var (*rhs_p, &body); | |
6938 | } | |
953ff289 | 6939 | |
629b3d75 MJ |
6940 | /* Once lowered, extract the bounds and clauses. */ |
6941 | omp_extract_for_data (stmt, &fd, NULL); | |
953ff289 | 6942 | |
629b3d75 MJ |
6943 | if (is_gimple_omp_oacc (ctx->stmt) |
6944 | && !ctx_in_oacc_kernels_region (ctx)) | |
6945 | lower_oacc_head_tail (gimple_location (stmt), | |
6946 | gimple_omp_for_clauses (stmt), | |
6947 | &oacc_head, &oacc_tail, ctx); | |
953ff289 | 6948 | |
01914336 | 6949 | /* Add OpenACC partitioning and reduction markers just before the loop. */ |
629b3d75 MJ |
6950 | if (oacc_head) |
6951 | gimple_seq_add_seq (&body, oacc_head); | |
01914336 | 6952 | |
629b3d75 | 6953 | lower_omp_for_lastprivate (&fd, &body, &dlist, ctx); |
acf0174b | 6954 | |
629b3d75 MJ |
6955 | if (gimple_omp_for_kind (stmt) == GF_OMP_FOR_KIND_FOR) |
6956 | for (tree c = gimple_omp_for_clauses (stmt); c; c = OMP_CLAUSE_CHAIN (c)) | |
d9a6bd32 JJ |
6957 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LINEAR |
6958 | && !OMP_CLAUSE_LINEAR_NO_COPYIN (c)) | |
6959 | { | |
629b3d75 MJ |
6960 | OMP_CLAUSE_DECL (c) = lookup_decl (OMP_CLAUSE_DECL (c), ctx); |
6961 | if (DECL_P (OMP_CLAUSE_LINEAR_STEP (c))) | |
6962 | OMP_CLAUSE_LINEAR_STEP (c) | |
6963 | = maybe_lookup_decl_in_outer_ctx (OMP_CLAUSE_LINEAR_STEP (c), | |
6964 | ctx); | |
d9a6bd32 | 6965 | } |
acf0174b | 6966 | |
629b3d75 MJ |
6967 | bool phony_loop = (gimple_omp_for_kind (stmt) != GF_OMP_FOR_KIND_GRID_LOOP |
6968 | && gimple_omp_for_grid_phony (stmt)); | |
6969 | if (!phony_loop) | |
6970 | gimple_seq_add_stmt (&body, stmt); | |
6971 | gimple_seq_add_seq (&body, gimple_omp_body (stmt)); | |
6972 | ||
6973 | if (!phony_loop) | |
6974 | gimple_seq_add_stmt (&body, gimple_build_omp_continue (fd.loop.v, | |
6975 | fd.loop.v)); | |
917948d3 | 6976 | |
629b3d75 MJ |
6977 | /* After the loop, add exit clauses. */ |
6978 | lower_reduction_clauses (gimple_omp_for_clauses (stmt), &body, ctx); | |
b8698a0f | 6979 | |
629b3d75 MJ |
6980 | if (ctx->cancellable) |
6981 | gimple_seq_add_stmt (&body, gimple_build_label (ctx->cancel_label)); | |
50674e96 | 6982 | |
629b3d75 | 6983 | gimple_seq_add_seq (&body, dlist); |
953ff289 | 6984 | |
629b3d75 | 6985 | body = maybe_catch_exception (body); |
953ff289 | 6986 | |
629b3d75 | 6987 | if (!phony_loop) |
acf0174b | 6988 | { |
629b3d75 MJ |
6989 | /* Region exit marker goes at the end of the loop body. */ |
6990 | gimple_seq_add_stmt (&body, gimple_build_omp_return (fd.have_nowait)); | |
6991 | maybe_add_implicit_barrier_cancel (ctx, &body); | |
acf0174b | 6992 | } |
953ff289 | 6993 | |
629b3d75 MJ |
6994 | /* Add OpenACC joining and reduction markers just after the loop. */ |
6995 | if (oacc_tail) | |
6996 | gimple_seq_add_seq (&body, oacc_tail); | |
917948d3 | 6997 | |
629b3d75 | 6998 | pop_gimplify_context (new_stmt); |
917948d3 | 6999 | |
629b3d75 | 7000 | gimple_bind_append_vars (new_stmt, ctx->block_vars); |
6724f8a6 | 7001 | maybe_remove_omp_member_access_dummy_vars (new_stmt); |
629b3d75 MJ |
7002 | BLOCK_VARS (block) = gimple_bind_vars (new_stmt); |
7003 | if (BLOCK_VARS (block)) | |
7004 | TREE_USED (block) = 1; | |
917948d3 | 7005 | |
629b3d75 MJ |
7006 | gimple_bind_set_body (new_stmt, body); |
7007 | gimple_omp_set_body (stmt, NULL); | |
7008 | gimple_omp_for_set_pre_body (stmt, NULL); | |
7009 | } | |
17720e84 | 7010 | |
629b3d75 MJ |
7011 | /* Callback for walk_stmts. Check if the current statement only contains |
7012 | GIMPLE_OMP_FOR or GIMPLE_OMP_SECTIONS. */ | |
917948d3 | 7013 | |
629b3d75 MJ |
7014 | static tree |
7015 | check_combined_parallel (gimple_stmt_iterator *gsi_p, | |
7016 | bool *handled_ops_p, | |
7017 | struct walk_stmt_info *wi) | |
7018 | { | |
7019 | int *info = (int *) wi->info; | |
7020 | gimple *stmt = gsi_stmt (*gsi_p); | |
917948d3 | 7021 | |
629b3d75 MJ |
7022 | *handled_ops_p = true; |
7023 | switch (gimple_code (stmt)) | |
acf0174b | 7024 | { |
629b3d75 | 7025 | WALK_SUBSTMTS; |
8cba6b95 | 7026 | |
65f4b875 AO |
7027 | case GIMPLE_DEBUG: |
7028 | break; | |
629b3d75 MJ |
7029 | case GIMPLE_OMP_FOR: |
7030 | case GIMPLE_OMP_SECTIONS: | |
7031 | *info = *info == 0 ? 1 : -1; | |
7032 | break; | |
7033 | default: | |
7034 | *info = -1; | |
7035 | break; | |
acf0174b | 7036 | } |
629b3d75 | 7037 | return NULL; |
953ff289 DN |
7038 | } |
7039 | ||
629b3d75 MJ |
7040 | struct omp_taskcopy_context |
7041 | { | |
7042 | /* This field must be at the beginning, as we do "inheritance": Some | |
7043 | callback functions for tree-inline.c (e.g., omp_copy_decl) | |
7044 | receive a copy_body_data pointer that is up-casted to an | |
7045 | omp_context pointer. */ | |
7046 | copy_body_data cb; | |
7047 | omp_context *ctx; | |
7048 | }; | |
9a771876 | 7049 | |
629b3d75 MJ |
7050 | static tree |
7051 | task_copyfn_copy_decl (tree var, copy_body_data *cb) | |
7052 | { | |
7053 | struct omp_taskcopy_context *tcctx = (struct omp_taskcopy_context *) cb; | |
9a771876 | 7054 | |
629b3d75 MJ |
7055 | if (splay_tree_lookup (tcctx->ctx->sfield_map, (splay_tree_key) var)) |
7056 | return create_tmp_var (TREE_TYPE (var)); | |
9a771876 | 7057 | |
629b3d75 MJ |
7058 | return var; |
7059 | } | |
9a771876 | 7060 | |
629b3d75 MJ |
7061 | static tree |
7062 | task_copyfn_remap_type (struct omp_taskcopy_context *tcctx, tree orig_type) | |
9a771876 | 7063 | { |
629b3d75 | 7064 | tree name, new_fields = NULL, type, f; |
9a771876 | 7065 | |
629b3d75 MJ |
7066 | type = lang_hooks.types.make_type (RECORD_TYPE); |
7067 | name = DECL_NAME (TYPE_NAME (orig_type)); | |
7068 | name = build_decl (gimple_location (tcctx->ctx->stmt), | |
7069 | TYPE_DECL, name, type); | |
7070 | TYPE_NAME (type) = name; | |
9a771876 | 7071 | |
629b3d75 | 7072 | for (f = TYPE_FIELDS (orig_type); f ; f = TREE_CHAIN (f)) |
9a771876 | 7073 | { |
629b3d75 MJ |
7074 | tree new_f = copy_node (f); |
7075 | DECL_CONTEXT (new_f) = type; | |
7076 | TREE_TYPE (new_f) = remap_type (TREE_TYPE (f), &tcctx->cb); | |
7077 | TREE_CHAIN (new_f) = new_fields; | |
7078 | walk_tree (&DECL_SIZE (new_f), copy_tree_body_r, &tcctx->cb, NULL); | |
7079 | walk_tree (&DECL_SIZE_UNIT (new_f), copy_tree_body_r, &tcctx->cb, NULL); | |
7080 | walk_tree (&DECL_FIELD_OFFSET (new_f), copy_tree_body_r, | |
7081 | &tcctx->cb, NULL); | |
7082 | new_fields = new_f; | |
7083 | tcctx->cb.decl_map->put (f, new_f); | |
9a771876 | 7084 | } |
629b3d75 MJ |
7085 | TYPE_FIELDS (type) = nreverse (new_fields); |
7086 | layout_type (type); | |
7087 | return type; | |
7088 | } | |
9a771876 | 7089 | |
629b3d75 | 7090 | /* Create task copyfn. */ |
9a771876 | 7091 | |
629b3d75 MJ |
7092 | static void |
7093 | create_task_copyfn (gomp_task *task_stmt, omp_context *ctx) | |
7094 | { | |
7095 | struct function *child_cfun; | |
7096 | tree child_fn, t, c, src, dst, f, sf, arg, sarg, decl; | |
7097 | tree record_type, srecord_type, bind, list; | |
7098 | bool record_needs_remap = false, srecord_needs_remap = false; | |
7099 | splay_tree_node n; | |
7100 | struct omp_taskcopy_context tcctx; | |
7101 | location_t loc = gimple_location (task_stmt); | |
9a771876 | 7102 | |
629b3d75 MJ |
7103 | child_fn = gimple_omp_task_copy_fn (task_stmt); |
7104 | child_cfun = DECL_STRUCT_FUNCTION (child_fn); | |
7105 | gcc_assert (child_cfun->cfg == NULL); | |
7106 | DECL_SAVED_TREE (child_fn) = alloc_stmt_list (); | |
9a771876 | 7107 | |
629b3d75 MJ |
7108 | /* Reset DECL_CONTEXT on function arguments. */ |
7109 | for (t = DECL_ARGUMENTS (child_fn); t; t = DECL_CHAIN (t)) | |
7110 | DECL_CONTEXT (t) = child_fn; | |
9a771876 | 7111 | |
629b3d75 MJ |
7112 | /* Populate the function. */ |
7113 | push_gimplify_context (); | |
7114 | push_cfun (child_cfun); | |
9a771876 | 7115 | |
629b3d75 MJ |
7116 | bind = build3 (BIND_EXPR, void_type_node, NULL, NULL, NULL); |
7117 | TREE_SIDE_EFFECTS (bind) = 1; | |
7118 | list = NULL; | |
7119 | DECL_SAVED_TREE (child_fn) = bind; | |
7120 | DECL_SOURCE_LOCATION (child_fn) = gimple_location (task_stmt); | |
9a771876 | 7121 | |
629b3d75 MJ |
7122 | /* Remap src and dst argument types if needed. */ |
7123 | record_type = ctx->record_type; | |
7124 | srecord_type = ctx->srecord_type; | |
7125 | for (f = TYPE_FIELDS (record_type); f ; f = DECL_CHAIN (f)) | |
7126 | if (variably_modified_type_p (TREE_TYPE (f), ctx->cb.src_fn)) | |
7127 | { | |
7128 | record_needs_remap = true; | |
7129 | break; | |
7130 | } | |
7131 | for (f = TYPE_FIELDS (srecord_type); f ; f = DECL_CHAIN (f)) | |
7132 | if (variably_modified_type_p (TREE_TYPE (f), ctx->cb.src_fn)) | |
7133 | { | |
7134 | srecord_needs_remap = true; | |
7135 | break; | |
7136 | } | |
9a771876 | 7137 | |
629b3d75 | 7138 | if (record_needs_remap || srecord_needs_remap) |
9a771876 | 7139 | { |
629b3d75 MJ |
7140 | memset (&tcctx, '\0', sizeof (tcctx)); |
7141 | tcctx.cb.src_fn = ctx->cb.src_fn; | |
7142 | tcctx.cb.dst_fn = child_fn; | |
7143 | tcctx.cb.src_node = cgraph_node::get (tcctx.cb.src_fn); | |
7144 | gcc_checking_assert (tcctx.cb.src_node); | |
7145 | tcctx.cb.dst_node = tcctx.cb.src_node; | |
7146 | tcctx.cb.src_cfun = ctx->cb.src_cfun; | |
7147 | tcctx.cb.copy_decl = task_copyfn_copy_decl; | |
7148 | tcctx.cb.eh_lp_nr = 0; | |
7149 | tcctx.cb.transform_call_graph_edges = CB_CGE_MOVE; | |
7150 | tcctx.cb.decl_map = new hash_map<tree, tree>; | |
7151 | tcctx.ctx = ctx; | |
9a771876 | 7152 | |
629b3d75 MJ |
7153 | if (record_needs_remap) |
7154 | record_type = task_copyfn_remap_type (&tcctx, record_type); | |
7155 | if (srecord_needs_remap) | |
7156 | srecord_type = task_copyfn_remap_type (&tcctx, srecord_type); | |
9a771876 JJ |
7157 | } |
7158 | else | |
629b3d75 | 7159 | tcctx.cb.decl_map = NULL; |
9a771876 | 7160 | |
629b3d75 MJ |
7161 | arg = DECL_ARGUMENTS (child_fn); |
7162 | TREE_TYPE (arg) = build_pointer_type (record_type); | |
7163 | sarg = DECL_CHAIN (arg); | |
7164 | TREE_TYPE (sarg) = build_pointer_type (srecord_type); | |
9a771876 | 7165 | |
629b3d75 MJ |
7166 | /* First pass: initialize temporaries used in record_type and srecord_type |
7167 | sizes and field offsets. */ | |
7168 | if (tcctx.cb.decl_map) | |
7169 | for (c = gimple_omp_task_clauses (task_stmt); c; c = OMP_CLAUSE_CHAIN (c)) | |
7170 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_FIRSTPRIVATE) | |
7171 | { | |
7172 | tree *p; | |
9a771876 | 7173 | |
629b3d75 MJ |
7174 | decl = OMP_CLAUSE_DECL (c); |
7175 | p = tcctx.cb.decl_map->get (decl); | |
7176 | if (p == NULL) | |
7177 | continue; | |
7178 | n = splay_tree_lookup (ctx->sfield_map, (splay_tree_key) decl); | |
7179 | sf = (tree) n->value; | |
7180 | sf = *tcctx.cb.decl_map->get (sf); | |
7181 | src = build_simple_mem_ref_loc (loc, sarg); | |
7182 | src = omp_build_component_ref (src, sf); | |
7183 | t = build2 (MODIFY_EXPR, TREE_TYPE (*p), *p, src); | |
7184 | append_to_statement_list (t, &list); | |
7185 | } | |
9a771876 | 7186 | |
629b3d75 MJ |
7187 | /* Second pass: copy shared var pointers and copy construct non-VLA |
7188 | firstprivate vars. */ | |
7189 | for (c = gimple_omp_task_clauses (task_stmt); c; c = OMP_CLAUSE_CHAIN (c)) | |
7190 | switch (OMP_CLAUSE_CODE (c)) | |
7191 | { | |
7192 | splay_tree_key key; | |
7193 | case OMP_CLAUSE_SHARED: | |
7194 | decl = OMP_CLAUSE_DECL (c); | |
7195 | key = (splay_tree_key) decl; | |
7196 | if (OMP_CLAUSE_SHARED_FIRSTPRIVATE (c)) | |
7197 | key = (splay_tree_key) &DECL_UID (decl); | |
7198 | n = splay_tree_lookup (ctx->field_map, key); | |
7199 | if (n == NULL) | |
7200 | break; | |
7201 | f = (tree) n->value; | |
7202 | if (tcctx.cb.decl_map) | |
7203 | f = *tcctx.cb.decl_map->get (f); | |
7204 | n = splay_tree_lookup (ctx->sfield_map, key); | |
7205 | sf = (tree) n->value; | |
7206 | if (tcctx.cb.decl_map) | |
7207 | sf = *tcctx.cb.decl_map->get (sf); | |
7208 | src = build_simple_mem_ref_loc (loc, sarg); | |
7209 | src = omp_build_component_ref (src, sf); | |
7210 | dst = build_simple_mem_ref_loc (loc, arg); | |
7211 | dst = omp_build_component_ref (dst, f); | |
7212 | t = build2 (MODIFY_EXPR, TREE_TYPE (dst), dst, src); | |
7213 | append_to_statement_list (t, &list); | |
7214 | break; | |
7215 | case OMP_CLAUSE_FIRSTPRIVATE: | |
7216 | decl = OMP_CLAUSE_DECL (c); | |
7217 | if (is_variable_sized (decl)) | |
7218 | break; | |
7219 | n = splay_tree_lookup (ctx->field_map, (splay_tree_key) decl); | |
7220 | if (n == NULL) | |
7221 | break; | |
7222 | f = (tree) n->value; | |
7223 | if (tcctx.cb.decl_map) | |
7224 | f = *tcctx.cb.decl_map->get (f); | |
7225 | n = splay_tree_lookup (ctx->sfield_map, (splay_tree_key) decl); | |
7226 | if (n != NULL) | |
7227 | { | |
7228 | sf = (tree) n->value; | |
7229 | if (tcctx.cb.decl_map) | |
7230 | sf = *tcctx.cb.decl_map->get (sf); | |
7231 | src = build_simple_mem_ref_loc (loc, sarg); | |
7232 | src = omp_build_component_ref (src, sf); | |
7233 | if (use_pointer_for_field (decl, NULL) || omp_is_reference (decl)) | |
7234 | src = build_simple_mem_ref_loc (loc, src); | |
7235 | } | |
7236 | else | |
7237 | src = decl; | |
7238 | dst = build_simple_mem_ref_loc (loc, arg); | |
7239 | dst = omp_build_component_ref (dst, f); | |
7240 | t = lang_hooks.decls.omp_clause_copy_ctor (c, dst, src); | |
7241 | append_to_statement_list (t, &list); | |
7242 | break; | |
7243 | case OMP_CLAUSE_PRIVATE: | |
7244 | if (! OMP_CLAUSE_PRIVATE_OUTER_REF (c)) | |
7245 | break; | |
7246 | decl = OMP_CLAUSE_DECL (c); | |
7247 | n = splay_tree_lookup (ctx->field_map, (splay_tree_key) decl); | |
7248 | f = (tree) n->value; | |
7249 | if (tcctx.cb.decl_map) | |
7250 | f = *tcctx.cb.decl_map->get (f); | |
7251 | n = splay_tree_lookup (ctx->sfield_map, (splay_tree_key) decl); | |
7252 | if (n != NULL) | |
7253 | { | |
7254 | sf = (tree) n->value; | |
7255 | if (tcctx.cb.decl_map) | |
7256 | sf = *tcctx.cb.decl_map->get (sf); | |
7257 | src = build_simple_mem_ref_loc (loc, sarg); | |
7258 | src = omp_build_component_ref (src, sf); | |
7259 | if (use_pointer_for_field (decl, NULL)) | |
7260 | src = build_simple_mem_ref_loc (loc, src); | |
7261 | } | |
7262 | else | |
7263 | src = decl; | |
7264 | dst = build_simple_mem_ref_loc (loc, arg); | |
7265 | dst = omp_build_component_ref (dst, f); | |
7266 | t = build2 (MODIFY_EXPR, TREE_TYPE (dst), dst, src); | |
7267 | append_to_statement_list (t, &list); | |
7268 | break; | |
7269 | default: | |
7270 | break; | |
7271 | } | |
74bf76ed | 7272 | |
629b3d75 MJ |
7273 | /* Last pass: handle VLA firstprivates. */ |
7274 | if (tcctx.cb.decl_map) | |
7275 | for (c = gimple_omp_task_clauses (task_stmt); c; c = OMP_CLAUSE_CHAIN (c)) | |
7276 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_FIRSTPRIVATE) | |
7277 | { | |
7278 | tree ind, ptr, df; | |
74bf76ed | 7279 | |
629b3d75 MJ |
7280 | decl = OMP_CLAUSE_DECL (c); |
7281 | if (!is_variable_sized (decl)) | |
7282 | continue; | |
7283 | n = splay_tree_lookup (ctx->field_map, (splay_tree_key) decl); | |
7284 | if (n == NULL) | |
7285 | continue; | |
7286 | f = (tree) n->value; | |
7287 | f = *tcctx.cb.decl_map->get (f); | |
7288 | gcc_assert (DECL_HAS_VALUE_EXPR_P (decl)); | |
7289 | ind = DECL_VALUE_EXPR (decl); | |
7290 | gcc_assert (TREE_CODE (ind) == INDIRECT_REF); | |
7291 | gcc_assert (DECL_P (TREE_OPERAND (ind, 0))); | |
7292 | n = splay_tree_lookup (ctx->sfield_map, | |
7293 | (splay_tree_key) TREE_OPERAND (ind, 0)); | |
7294 | sf = (tree) n->value; | |
7295 | sf = *tcctx.cb.decl_map->get (sf); | |
7296 | src = build_simple_mem_ref_loc (loc, sarg); | |
7297 | src = omp_build_component_ref (src, sf); | |
7298 | src = build_simple_mem_ref_loc (loc, src); | |
7299 | dst = build_simple_mem_ref_loc (loc, arg); | |
7300 | dst = omp_build_component_ref (dst, f); | |
7301 | t = lang_hooks.decls.omp_clause_copy_ctor (c, dst, src); | |
7302 | append_to_statement_list (t, &list); | |
7303 | n = splay_tree_lookup (ctx->field_map, | |
7304 | (splay_tree_key) TREE_OPERAND (ind, 0)); | |
7305 | df = (tree) n->value; | |
7306 | df = *tcctx.cb.decl_map->get (df); | |
7307 | ptr = build_simple_mem_ref_loc (loc, arg); | |
7308 | ptr = omp_build_component_ref (ptr, df); | |
7309 | t = build2 (MODIFY_EXPR, TREE_TYPE (ptr), ptr, | |
7310 | build_fold_addr_expr_loc (loc, dst)); | |
7311 | append_to_statement_list (t, &list); | |
7312 | } | |
74bf76ed | 7313 | |
629b3d75 MJ |
7314 | t = build1 (RETURN_EXPR, void_type_node, NULL); |
7315 | append_to_statement_list (t, &list); | |
74bf76ed | 7316 | |
629b3d75 MJ |
7317 | if (tcctx.cb.decl_map) |
7318 | delete tcctx.cb.decl_map; | |
7319 | pop_gimplify_context (NULL); | |
7320 | BIND_EXPR_BODY (bind) = list; | |
7321 | pop_cfun (); | |
7322 | } | |
74bf76ed JJ |
7323 | |
7324 | static void | |
629b3d75 | 7325 | lower_depend_clauses (tree *pclauses, gimple_seq *iseq, gimple_seq *oseq) |
74bf76ed | 7326 | { |
629b3d75 MJ |
7327 | tree c, clauses; |
7328 | gimple *g; | |
7329 | size_t n_in = 0, n_out = 0, idx = 2, i; | |
7330 | ||
7331 | clauses = omp_find_clause (*pclauses, OMP_CLAUSE_DEPEND); | |
7332 | gcc_assert (clauses); | |
7333 | for (c = clauses; c; c = OMP_CLAUSE_CHAIN (c)) | |
7334 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_DEPEND) | |
7335 | switch (OMP_CLAUSE_DEPEND_KIND (c)) | |
7336 | { | |
7337 | case OMP_CLAUSE_DEPEND_IN: | |
7338 | n_in++; | |
7339 | break; | |
7340 | case OMP_CLAUSE_DEPEND_OUT: | |
7341 | case OMP_CLAUSE_DEPEND_INOUT: | |
7342 | n_out++; | |
7343 | break; | |
7344 | case OMP_CLAUSE_DEPEND_SOURCE: | |
7345 | case OMP_CLAUSE_DEPEND_SINK: | |
7346 | /* FALLTHRU */ | |
7347 | default: | |
7348 | gcc_unreachable (); | |
7349 | } | |
7350 | tree type = build_array_type_nelts (ptr_type_node, n_in + n_out + 2); | |
7351 | tree array = create_tmp_var (type); | |
7352 | TREE_ADDRESSABLE (array) = 1; | |
7353 | tree r = build4 (ARRAY_REF, ptr_type_node, array, size_int (0), NULL_TREE, | |
7354 | NULL_TREE); | |
7355 | g = gimple_build_assign (r, build_int_cst (ptr_type_node, n_in + n_out)); | |
7356 | gimple_seq_add_stmt (iseq, g); | |
7357 | r = build4 (ARRAY_REF, ptr_type_node, array, size_int (1), NULL_TREE, | |
7358 | NULL_TREE); | |
7359 | g = gimple_build_assign (r, build_int_cst (ptr_type_node, n_out)); | |
7360 | gimple_seq_add_stmt (iseq, g); | |
7361 | for (i = 0; i < 2; i++) | |
74bf76ed | 7362 | { |
629b3d75 MJ |
7363 | if ((i ? n_in : n_out) == 0) |
7364 | continue; | |
7365 | for (c = clauses; c; c = OMP_CLAUSE_CHAIN (c)) | |
7366 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_DEPEND | |
7367 | && ((OMP_CLAUSE_DEPEND_KIND (c) != OMP_CLAUSE_DEPEND_IN) ^ i)) | |
7368 | { | |
7369 | tree t = OMP_CLAUSE_DECL (c); | |
7370 | t = fold_convert (ptr_type_node, t); | |
7371 | gimplify_expr (&t, iseq, NULL, is_gimple_val, fb_rvalue); | |
7372 | r = build4 (ARRAY_REF, ptr_type_node, array, size_int (idx++), | |
7373 | NULL_TREE, NULL_TREE); | |
7374 | g = gimple_build_assign (r, t); | |
7375 | gimple_seq_add_stmt (iseq, g); | |
7376 | } | |
74bf76ed | 7377 | } |
629b3d75 MJ |
7378 | c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_DEPEND); |
7379 | OMP_CLAUSE_DECL (c) = build_fold_addr_expr (array); | |
7380 | OMP_CLAUSE_CHAIN (c) = *pclauses; | |
7381 | *pclauses = c; | |
7382 | tree clobber = build_constructor (type, NULL); | |
7383 | TREE_THIS_VOLATILE (clobber) = 1; | |
7384 | g = gimple_build_assign (array, clobber); | |
7385 | gimple_seq_add_stmt (oseq, g); | |
7386 | } | |
7387 | ||
7388 | /* Lower the OpenMP parallel or task directive in the current statement | |
7389 | in GSI_P. CTX holds context information for the directive. */ | |
74bf76ed | 7390 | |
629b3d75 MJ |
7391 | static void |
7392 | lower_omp_taskreg (gimple_stmt_iterator *gsi_p, omp_context *ctx) | |
7393 | { | |
7394 | tree clauses; | |
7395 | tree child_fn, t; | |
7396 | gimple *stmt = gsi_stmt (*gsi_p); | |
7397 | gbind *par_bind, *bind, *dep_bind = NULL; | |
7398 | gimple_seq par_body, olist, ilist, par_olist, par_rlist, par_ilist, new_body; | |
7399 | location_t loc = gimple_location (stmt); | |
74bf76ed | 7400 | |
629b3d75 MJ |
7401 | clauses = gimple_omp_taskreg_clauses (stmt); |
7402 | par_bind | |
7403 | = as_a <gbind *> (gimple_seq_first_stmt (gimple_omp_body (stmt))); | |
7404 | par_body = gimple_bind_body (par_bind); | |
7405 | child_fn = ctx->cb.dst_fn; | |
7406 | if (gimple_code (stmt) == GIMPLE_OMP_PARALLEL | |
7407 | && !gimple_omp_parallel_combined_p (stmt)) | |
74bf76ed | 7408 | { |
629b3d75 MJ |
7409 | struct walk_stmt_info wi; |
7410 | int ws_num = 0; | |
74bf76ed | 7411 | |
629b3d75 MJ |
7412 | memset (&wi, 0, sizeof (wi)); |
7413 | wi.info = &ws_num; | |
7414 | wi.val_only = true; | |
7415 | walk_gimple_seq (par_body, check_combined_parallel, NULL, &wi); | |
7416 | if (ws_num == 1) | |
7417 | gimple_omp_parallel_set_combined_p (stmt, true); | |
74bf76ed | 7418 | } |
629b3d75 MJ |
7419 | gimple_seq dep_ilist = NULL; |
7420 | gimple_seq dep_olist = NULL; | |
7421 | if (gimple_code (stmt) == GIMPLE_OMP_TASK | |
7422 | && omp_find_clause (clauses, OMP_CLAUSE_DEPEND)) | |
acf0174b | 7423 | { |
629b3d75 MJ |
7424 | push_gimplify_context (); |
7425 | dep_bind = gimple_build_bind (NULL, NULL, make_node (BLOCK)); | |
7426 | lower_depend_clauses (gimple_omp_task_clauses_ptr (stmt), | |
7427 | &dep_ilist, &dep_olist); | |
9669b00b | 7428 | } |
9669b00b | 7429 | |
629b3d75 MJ |
7430 | if (ctx->srecord_type) |
7431 | create_task_copyfn (as_a <gomp_task *> (stmt), ctx); | |
9669b00b | 7432 | |
629b3d75 | 7433 | push_gimplify_context (); |
74bf76ed | 7434 | |
629b3d75 MJ |
7435 | par_olist = NULL; |
7436 | par_ilist = NULL; | |
7437 | par_rlist = NULL; | |
7438 | bool phony_construct = gimple_code (stmt) == GIMPLE_OMP_PARALLEL | |
7439 | && gimple_omp_parallel_grid_phony (as_a <gomp_parallel *> (stmt)); | |
7440 | if (phony_construct && ctx->record_type) | |
9669b00b | 7441 | { |
629b3d75 MJ |
7442 | gcc_checking_assert (!ctx->receiver_decl); |
7443 | ctx->receiver_decl = create_tmp_var | |
7444 | (build_reference_type (ctx->record_type), ".omp_rec"); | |
9669b00b | 7445 | } |
629b3d75 MJ |
7446 | lower_rec_input_clauses (clauses, &par_ilist, &par_olist, ctx, NULL); |
7447 | lower_omp (&par_body, ctx); | |
7448 | if (gimple_code (stmt) == GIMPLE_OMP_PARALLEL) | |
7449 | lower_reduction_clauses (clauses, &par_rlist, ctx); | |
9669b00b | 7450 | |
629b3d75 MJ |
7451 | /* Declare all the variables created by mapping and the variables |
7452 | declared in the scope of the parallel body. */ | |
7453 | record_vars_into (ctx->block_vars, child_fn); | |
6724f8a6 | 7454 | maybe_remove_omp_member_access_dummy_vars (par_bind); |
629b3d75 | 7455 | record_vars_into (gimple_bind_vars (par_bind), child_fn); |
74bf76ed | 7456 | |
629b3d75 | 7457 | if (ctx->record_type) |
74bf76ed | 7458 | { |
629b3d75 MJ |
7459 | ctx->sender_decl |
7460 | = create_tmp_var (ctx->srecord_type ? ctx->srecord_type | |
7461 | : ctx->record_type, ".omp_data_o"); | |
7462 | DECL_NAMELESS (ctx->sender_decl) = 1; | |
7463 | TREE_ADDRESSABLE (ctx->sender_decl) = 1; | |
7464 | gimple_omp_taskreg_set_data_arg (stmt, ctx->sender_decl); | |
74bf76ed | 7465 | } |
74bf76ed | 7466 | |
629b3d75 MJ |
7467 | olist = NULL; |
7468 | ilist = NULL; | |
7469 | lower_send_clauses (clauses, &ilist, &olist, ctx); | |
7470 | lower_send_shared_vars (&ilist, &olist, ctx); | |
9669b00b | 7471 | |
629b3d75 | 7472 | if (ctx->record_type) |
74bf76ed | 7473 | { |
629b3d75 MJ |
7474 | tree clobber = build_constructor (TREE_TYPE (ctx->sender_decl), NULL); |
7475 | TREE_THIS_VOLATILE (clobber) = 1; | |
7476 | gimple_seq_add_stmt (&olist, gimple_build_assign (ctx->sender_decl, | |
7477 | clobber)); | |
d9a6bd32 | 7478 | } |
d9a6bd32 | 7479 | |
629b3d75 MJ |
7480 | /* Once all the expansions are done, sequence all the different |
7481 | fragments inside gimple_omp_body. */ | |
d9a6bd32 | 7482 | |
629b3d75 | 7483 | new_body = NULL; |
d9a6bd32 | 7484 | |
629b3d75 | 7485 | if (ctx->record_type) |
d9a6bd32 | 7486 | { |
629b3d75 MJ |
7487 | t = build_fold_addr_expr_loc (loc, ctx->sender_decl); |
7488 | /* fixup_child_record_type might have changed receiver_decl's type. */ | |
7489 | t = fold_convert_loc (loc, TREE_TYPE (ctx->receiver_decl), t); | |
7490 | gimple_seq_add_stmt (&new_body, | |
7491 | gimple_build_assign (ctx->receiver_decl, t)); | |
d9a6bd32 JJ |
7492 | } |
7493 | ||
629b3d75 MJ |
7494 | gimple_seq_add_seq (&new_body, par_ilist); |
7495 | gimple_seq_add_seq (&new_body, par_body); | |
7496 | gimple_seq_add_seq (&new_body, par_rlist); | |
7497 | if (ctx->cancellable) | |
7498 | gimple_seq_add_stmt (&new_body, gimple_build_label (ctx->cancel_label)); | |
7499 | gimple_seq_add_seq (&new_body, par_olist); | |
7500 | new_body = maybe_catch_exception (new_body); | |
7501 | if (gimple_code (stmt) == GIMPLE_OMP_TASK) | |
7502 | gimple_seq_add_stmt (&new_body, | |
7503 | gimple_build_omp_continue (integer_zero_node, | |
7504 | integer_zero_node)); | |
7505 | if (!phony_construct) | |
d9a6bd32 | 7506 | { |
629b3d75 MJ |
7507 | gimple_seq_add_stmt (&new_body, gimple_build_omp_return (false)); |
7508 | gimple_omp_set_body (stmt, new_body); | |
d9a6bd32 JJ |
7509 | } |
7510 | ||
629b3d75 MJ |
7511 | bind = gimple_build_bind (NULL, NULL, gimple_bind_block (par_bind)); |
7512 | gsi_replace (gsi_p, dep_bind ? dep_bind : bind, true); | |
7513 | gimple_bind_add_seq (bind, ilist); | |
7514 | if (!phony_construct) | |
7515 | gimple_bind_add_stmt (bind, stmt); | |
d9a6bd32 | 7516 | else |
629b3d75 MJ |
7517 | gimple_bind_add_seq (bind, new_body); |
7518 | gimple_bind_add_seq (bind, olist); | |
d9a6bd32 | 7519 | |
629b3d75 MJ |
7520 | pop_gimplify_context (NULL); |
7521 | ||
7522 | if (dep_bind) | |
d9a6bd32 | 7523 | { |
629b3d75 MJ |
7524 | gimple_bind_add_seq (dep_bind, dep_ilist); |
7525 | gimple_bind_add_stmt (dep_bind, bind); | |
7526 | gimple_bind_add_seq (dep_bind, dep_olist); | |
7527 | pop_gimplify_context (dep_bind); | |
d9a6bd32 | 7528 | } |
d9a6bd32 JJ |
7529 | } |
7530 | ||
629b3d75 MJ |
7531 | /* Lower the GIMPLE_OMP_TARGET in the current statement |
7532 | in GSI_P. CTX holds context information for the directive. */ | |
d9a6bd32 JJ |
7533 | |
7534 | static void | |
629b3d75 | 7535 | lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx) |
d9a6bd32 | 7536 | { |
629b3d75 MJ |
7537 | tree clauses; |
7538 | tree child_fn, t, c; | |
7539 | gomp_target *stmt = as_a <gomp_target *> (gsi_stmt (*gsi_p)); | |
7540 | gbind *tgt_bind, *bind, *dep_bind = NULL; | |
7541 | gimple_seq tgt_body, olist, ilist, fplist, new_body; | |
7542 | location_t loc = gimple_location (stmt); | |
7543 | bool offloaded, data_region; | |
7544 | unsigned int map_cnt = 0; | |
d9a6bd32 | 7545 | |
629b3d75 MJ |
7546 | offloaded = is_gimple_omp_offloaded (stmt); |
7547 | switch (gimple_omp_target_kind (stmt)) | |
d9a6bd32 | 7548 | { |
629b3d75 MJ |
7549 | case GF_OMP_TARGET_KIND_REGION: |
7550 | case GF_OMP_TARGET_KIND_UPDATE: | |
7551 | case GF_OMP_TARGET_KIND_ENTER_DATA: | |
7552 | case GF_OMP_TARGET_KIND_EXIT_DATA: | |
7553 | case GF_OMP_TARGET_KIND_OACC_PARALLEL: | |
7554 | case GF_OMP_TARGET_KIND_OACC_KERNELS: | |
7555 | case GF_OMP_TARGET_KIND_OACC_UPDATE: | |
7556 | case GF_OMP_TARGET_KIND_OACC_ENTER_EXIT_DATA: | |
7557 | case GF_OMP_TARGET_KIND_OACC_DECLARE: | |
7558 | data_region = false; | |
7559 | break; | |
7560 | case GF_OMP_TARGET_KIND_DATA: | |
7561 | case GF_OMP_TARGET_KIND_OACC_DATA: | |
7562 | case GF_OMP_TARGET_KIND_OACC_HOST_DATA: | |
7563 | data_region = true; | |
7564 | break; | |
7565 | default: | |
7566 | gcc_unreachable (); | |
74bf76ed | 7567 | } |
74bf76ed | 7568 | |
629b3d75 | 7569 | clauses = gimple_omp_target_clauses (stmt); |
d9a6bd32 | 7570 | |
629b3d75 MJ |
7571 | gimple_seq dep_ilist = NULL; |
7572 | gimple_seq dep_olist = NULL; | |
7573 | if (omp_find_clause (clauses, OMP_CLAUSE_DEPEND)) | |
d9a6bd32 | 7574 | { |
629b3d75 MJ |
7575 | push_gimplify_context (); |
7576 | dep_bind = gimple_build_bind (NULL, NULL, make_node (BLOCK)); | |
7577 | lower_depend_clauses (gimple_omp_target_clauses_ptr (stmt), | |
7578 | &dep_ilist, &dep_olist); | |
d9a6bd32 | 7579 | } |
953ff289 | 7580 | |
629b3d75 MJ |
7581 | tgt_bind = NULL; |
7582 | tgt_body = NULL; | |
7583 | if (offloaded) | |
e4834818 | 7584 | { |
629b3d75 MJ |
7585 | tgt_bind = gimple_seq_first_stmt_as_a_bind (gimple_omp_body (stmt)); |
7586 | tgt_body = gimple_bind_body (tgt_bind); | |
e4834818 | 7587 | } |
629b3d75 MJ |
7588 | else if (data_region) |
7589 | tgt_body = gimple_omp_body (stmt); | |
7590 | child_fn = ctx->cb.dst_fn; | |
e4834818 | 7591 | |
629b3d75 MJ |
7592 | push_gimplify_context (); |
7593 | fplist = NULL; | |
e4834818 | 7594 | |
629b3d75 MJ |
7595 | for (c = clauses; c ; c = OMP_CLAUSE_CHAIN (c)) |
7596 | switch (OMP_CLAUSE_CODE (c)) | |
7597 | { | |
7598 | tree var, x; | |
e4834818 | 7599 | |
629b3d75 MJ |
7600 | default: |
7601 | break; | |
7602 | case OMP_CLAUSE_MAP: | |
7603 | #if CHECKING_P | |
7604 | /* First check what we're prepared to handle in the following. */ | |
7605 | switch (OMP_CLAUSE_MAP_KIND (c)) | |
7606 | { | |
7607 | case GOMP_MAP_ALLOC: | |
7608 | case GOMP_MAP_TO: | |
7609 | case GOMP_MAP_FROM: | |
7610 | case GOMP_MAP_TOFROM: | |
7611 | case GOMP_MAP_POINTER: | |
7612 | case GOMP_MAP_TO_PSET: | |
7613 | case GOMP_MAP_DELETE: | |
7614 | case GOMP_MAP_RELEASE: | |
7615 | case GOMP_MAP_ALWAYS_TO: | |
7616 | case GOMP_MAP_ALWAYS_FROM: | |
7617 | case GOMP_MAP_ALWAYS_TOFROM: | |
7618 | case GOMP_MAP_FIRSTPRIVATE_POINTER: | |
7619 | case GOMP_MAP_FIRSTPRIVATE_REFERENCE: | |
7620 | case GOMP_MAP_STRUCT: | |
7621 | case GOMP_MAP_ALWAYS_POINTER: | |
7622 | break; | |
7623 | case GOMP_MAP_FORCE_ALLOC: | |
7624 | case GOMP_MAP_FORCE_TO: | |
7625 | case GOMP_MAP_FORCE_FROM: | |
7626 | case GOMP_MAP_FORCE_TOFROM: | |
7627 | case GOMP_MAP_FORCE_PRESENT: | |
7628 | case GOMP_MAP_FORCE_DEVICEPTR: | |
7629 | case GOMP_MAP_DEVICE_RESIDENT: | |
7630 | case GOMP_MAP_LINK: | |
7631 | gcc_assert (is_gimple_omp_oacc (stmt)); | |
7632 | break; | |
7633 | default: | |
7634 | gcc_unreachable (); | |
7635 | } | |
7636 | #endif | |
7637 | /* FALLTHRU */ | |
7638 | case OMP_CLAUSE_TO: | |
7639 | case OMP_CLAUSE_FROM: | |
7640 | oacc_firstprivate: | |
7641 | var = OMP_CLAUSE_DECL (c); | |
7642 | if (!DECL_P (var)) | |
7643 | { | |
7644 | if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_MAP | |
7645 | || (!OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (c) | |
7646 | && (OMP_CLAUSE_MAP_KIND (c) | |
7647 | != GOMP_MAP_FIRSTPRIVATE_POINTER))) | |
7648 | map_cnt++; | |
7649 | continue; | |
7650 | } | |
e4834818 | 7651 | |
629b3d75 MJ |
7652 | if (DECL_SIZE (var) |
7653 | && TREE_CODE (DECL_SIZE (var)) != INTEGER_CST) | |
7654 | { | |
7655 | tree var2 = DECL_VALUE_EXPR (var); | |
7656 | gcc_assert (TREE_CODE (var2) == INDIRECT_REF); | |
7657 | var2 = TREE_OPERAND (var2, 0); | |
7658 | gcc_assert (DECL_P (var2)); | |
7659 | var = var2; | |
7660 | } | |
e4834818 | 7661 | |
629b3d75 MJ |
7662 | if (offloaded |
7663 | && OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP | |
7664 | && (OMP_CLAUSE_MAP_KIND (c) == GOMP_MAP_FIRSTPRIVATE_POINTER | |
7665 | || OMP_CLAUSE_MAP_KIND (c) == GOMP_MAP_FIRSTPRIVATE_REFERENCE)) | |
7666 | { | |
7667 | if (TREE_CODE (TREE_TYPE (var)) == ARRAY_TYPE) | |
7668 | { | |
7669 | if (is_global_var (maybe_lookup_decl_in_outer_ctx (var, ctx)) | |
7670 | && varpool_node::get_create (var)->offloadable) | |
7671 | continue; | |
e4834818 | 7672 | |
629b3d75 MJ |
7673 | tree type = build_pointer_type (TREE_TYPE (var)); |
7674 | tree new_var = lookup_decl (var, ctx); | |
7675 | x = create_tmp_var_raw (type, get_name (new_var)); | |
7676 | gimple_add_tmp_var (x); | |
7677 | x = build_simple_mem_ref (x); | |
7678 | SET_DECL_VALUE_EXPR (new_var, x); | |
7679 | DECL_HAS_VALUE_EXPR_P (new_var) = 1; | |
7680 | } | |
7681 | continue; | |
7682 | } | |
e4834818 | 7683 | |
629b3d75 MJ |
7684 | if (!maybe_lookup_field (var, ctx)) |
7685 | continue; | |
e4834818 | 7686 | |
629b3d75 MJ |
7687 | /* Don't remap oacc parallel reduction variables, because the |
7688 | intermediate result must be local to each gang. */ | |
7689 | if (offloaded && !(OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP | |
7690 | && OMP_CLAUSE_MAP_IN_REDUCTION (c))) | |
7691 | { | |
7692 | x = build_receiver_ref (var, true, ctx); | |
7693 | tree new_var = lookup_decl (var, ctx); | |
e4834818 | 7694 | |
629b3d75 MJ |
7695 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP |
7696 | && OMP_CLAUSE_MAP_KIND (c) == GOMP_MAP_POINTER | |
7697 | && !OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (c) | |
7698 | && TREE_CODE (TREE_TYPE (var)) == ARRAY_TYPE) | |
7699 | x = build_simple_mem_ref (x); | |
7700 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_FIRSTPRIVATE) | |
7701 | { | |
7702 | gcc_assert (is_gimple_omp_oacc (ctx->stmt)); | |
bd1cab35 CLT |
7703 | if (omp_is_reference (new_var) |
7704 | && TREE_CODE (TREE_TYPE (new_var)) != POINTER_TYPE) | |
629b3d75 MJ |
7705 | { |
7706 | /* Create a local object to hold the instance | |
7707 | value. */ | |
7708 | tree type = TREE_TYPE (TREE_TYPE (new_var)); | |
7709 | const char *id = IDENTIFIER_POINTER (DECL_NAME (new_var)); | |
7710 | tree inst = create_tmp_var (type, id); | |
7711 | gimplify_assign (inst, fold_indirect_ref (x), &fplist); | |
7712 | x = build_fold_addr_expr (inst); | |
7713 | } | |
7714 | gimplify_assign (new_var, x, &fplist); | |
7715 | } | |
7716 | else if (DECL_P (new_var)) | |
7717 | { | |
7718 | SET_DECL_VALUE_EXPR (new_var, x); | |
7719 | DECL_HAS_VALUE_EXPR_P (new_var) = 1; | |
7720 | } | |
7721 | else | |
7722 | gcc_unreachable (); | |
7723 | } | |
7724 | map_cnt++; | |
7725 | break; | |
e4834818 | 7726 | |
629b3d75 MJ |
7727 | case OMP_CLAUSE_FIRSTPRIVATE: |
7728 | if (is_oacc_parallel (ctx)) | |
7729 | goto oacc_firstprivate; | |
7730 | map_cnt++; | |
7731 | var = OMP_CLAUSE_DECL (c); | |
7732 | if (!omp_is_reference (var) | |
7733 | && !is_gimple_reg_type (TREE_TYPE (var))) | |
7734 | { | |
7735 | tree new_var = lookup_decl (var, ctx); | |
7736 | if (is_variable_sized (var)) | |
7737 | { | |
7738 | tree pvar = DECL_VALUE_EXPR (var); | |
7739 | gcc_assert (TREE_CODE (pvar) == INDIRECT_REF); | |
7740 | pvar = TREE_OPERAND (pvar, 0); | |
7741 | gcc_assert (DECL_P (pvar)); | |
7742 | tree new_pvar = lookup_decl (pvar, ctx); | |
7743 | x = build_fold_indirect_ref (new_pvar); | |
7744 | TREE_THIS_NOTRAP (x) = 1; | |
7745 | } | |
7746 | else | |
7747 | x = build_receiver_ref (var, true, ctx); | |
7748 | SET_DECL_VALUE_EXPR (new_var, x); | |
7749 | DECL_HAS_VALUE_EXPR_P (new_var) = 1; | |
7750 | } | |
7751 | break; | |
e4834818 | 7752 | |
629b3d75 MJ |
7753 | case OMP_CLAUSE_PRIVATE: |
7754 | if (is_gimple_omp_oacc (ctx->stmt)) | |
7755 | break; | |
7756 | var = OMP_CLAUSE_DECL (c); | |
7757 | if (is_variable_sized (var)) | |
7758 | { | |
7759 | tree new_var = lookup_decl (var, ctx); | |
7760 | tree pvar = DECL_VALUE_EXPR (var); | |
7761 | gcc_assert (TREE_CODE (pvar) == INDIRECT_REF); | |
7762 | pvar = TREE_OPERAND (pvar, 0); | |
7763 | gcc_assert (DECL_P (pvar)); | |
7764 | tree new_pvar = lookup_decl (pvar, ctx); | |
7765 | x = build_fold_indirect_ref (new_pvar); | |
7766 | TREE_THIS_NOTRAP (x) = 1; | |
7767 | SET_DECL_VALUE_EXPR (new_var, x); | |
7768 | DECL_HAS_VALUE_EXPR_P (new_var) = 1; | |
7769 | } | |
7770 | break; | |
e4834818 | 7771 | |
629b3d75 MJ |
7772 | case OMP_CLAUSE_USE_DEVICE_PTR: |
7773 | case OMP_CLAUSE_IS_DEVICE_PTR: | |
7774 | var = OMP_CLAUSE_DECL (c); | |
7775 | map_cnt++; | |
7776 | if (is_variable_sized (var)) | |
7777 | { | |
7778 | tree new_var = lookup_decl (var, ctx); | |
7779 | tree pvar = DECL_VALUE_EXPR (var); | |
7780 | gcc_assert (TREE_CODE (pvar) == INDIRECT_REF); | |
7781 | pvar = TREE_OPERAND (pvar, 0); | |
7782 | gcc_assert (DECL_P (pvar)); | |
7783 | tree new_pvar = lookup_decl (pvar, ctx); | |
7784 | x = build_fold_indirect_ref (new_pvar); | |
7785 | TREE_THIS_NOTRAP (x) = 1; | |
7786 | SET_DECL_VALUE_EXPR (new_var, x); | |
7787 | DECL_HAS_VALUE_EXPR_P (new_var) = 1; | |
7788 | } | |
7789 | else if (TREE_CODE (TREE_TYPE (var)) == ARRAY_TYPE) | |
7790 | { | |
7791 | tree new_var = lookup_decl (var, ctx); | |
7792 | tree type = build_pointer_type (TREE_TYPE (var)); | |
7793 | x = create_tmp_var_raw (type, get_name (new_var)); | |
7794 | gimple_add_tmp_var (x); | |
7795 | x = build_simple_mem_ref (x); | |
7796 | SET_DECL_VALUE_EXPR (new_var, x); | |
7797 | DECL_HAS_VALUE_EXPR_P (new_var) = 1; | |
7798 | } | |
7799 | else | |
7800 | { | |
7801 | tree new_var = lookup_decl (var, ctx); | |
7802 | x = create_tmp_var_raw (TREE_TYPE (new_var), get_name (new_var)); | |
7803 | gimple_add_tmp_var (x); | |
7804 | SET_DECL_VALUE_EXPR (new_var, x); | |
7805 | DECL_HAS_VALUE_EXPR_P (new_var) = 1; | |
7806 | } | |
7807 | break; | |
7808 | } | |
e4834818 | 7809 | |
629b3d75 | 7810 | if (offloaded) |
e4834818 | 7811 | { |
629b3d75 MJ |
7812 | target_nesting_level++; |
7813 | lower_omp (&tgt_body, ctx); | |
7814 | target_nesting_level--; | |
e4834818 | 7815 | } |
629b3d75 MJ |
7816 | else if (data_region) |
7817 | lower_omp (&tgt_body, ctx); | |
e4834818 | 7818 | |
629b3d75 | 7819 | if (offloaded) |
e4834818 | 7820 | { |
629b3d75 MJ |
7821 | /* Declare all the variables created by mapping and the variables |
7822 | declared in the scope of the target body. */ | |
7823 | record_vars_into (ctx->block_vars, child_fn); | |
6724f8a6 | 7824 | maybe_remove_omp_member_access_dummy_vars (tgt_bind); |
629b3d75 | 7825 | record_vars_into (gimple_bind_vars (tgt_bind), child_fn); |
e4834818 NS |
7826 | } |
7827 | ||
629b3d75 MJ |
7828 | olist = NULL; |
7829 | ilist = NULL; | |
7830 | if (ctx->record_type) | |
e4834818 | 7831 | { |
629b3d75 MJ |
7832 | ctx->sender_decl |
7833 | = create_tmp_var (ctx->record_type, ".omp_data_arr"); | |
7834 | DECL_NAMELESS (ctx->sender_decl) = 1; | |
7835 | TREE_ADDRESSABLE (ctx->sender_decl) = 1; | |
7836 | t = make_tree_vec (3); | |
7837 | TREE_VEC_ELT (t, 0) = ctx->sender_decl; | |
7838 | TREE_VEC_ELT (t, 1) | |
7839 | = create_tmp_var (build_array_type_nelts (size_type_node, map_cnt), | |
7840 | ".omp_data_sizes"); | |
7841 | DECL_NAMELESS (TREE_VEC_ELT (t, 1)) = 1; | |
7842 | TREE_ADDRESSABLE (TREE_VEC_ELT (t, 1)) = 1; | |
7843 | TREE_STATIC (TREE_VEC_ELT (t, 1)) = 1; | |
7844 | tree tkind_type = short_unsigned_type_node; | |
7845 | int talign_shift = 8; | |
7846 | TREE_VEC_ELT (t, 2) | |
7847 | = create_tmp_var (build_array_type_nelts (tkind_type, map_cnt), | |
7848 | ".omp_data_kinds"); | |
7849 | DECL_NAMELESS (TREE_VEC_ELT (t, 2)) = 1; | |
7850 | TREE_ADDRESSABLE (TREE_VEC_ELT (t, 2)) = 1; | |
7851 | TREE_STATIC (TREE_VEC_ELT (t, 2)) = 1; | |
7852 | gimple_omp_target_set_data_arg (stmt, t); | |
953ff289 | 7853 | |
629b3d75 MJ |
7854 | vec<constructor_elt, va_gc> *vsize; |
7855 | vec<constructor_elt, va_gc> *vkind; | |
7856 | vec_alloc (vsize, map_cnt); | |
7857 | vec_alloc (vkind, map_cnt); | |
7858 | unsigned int map_idx = 0; | |
953ff289 | 7859 | |
629b3d75 MJ |
7860 | for (c = clauses; c ; c = OMP_CLAUSE_CHAIN (c)) |
7861 | switch (OMP_CLAUSE_CODE (c)) | |
953ff289 | 7862 | { |
629b3d75 MJ |
7863 | tree ovar, nc, s, purpose, var, x, type; |
7864 | unsigned int talign; | |
953ff289 | 7865 | |
629b3d75 MJ |
7866 | default: |
7867 | break; | |
953ff289 | 7868 | |
629b3d75 MJ |
7869 | case OMP_CLAUSE_MAP: |
7870 | case OMP_CLAUSE_TO: | |
7871 | case OMP_CLAUSE_FROM: | |
7872 | oacc_firstprivate_map: | |
7873 | nc = c; | |
7874 | ovar = OMP_CLAUSE_DECL (c); | |
7875 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP | |
7876 | && (OMP_CLAUSE_MAP_KIND (c) == GOMP_MAP_FIRSTPRIVATE_POINTER | |
7877 | || (OMP_CLAUSE_MAP_KIND (c) | |
7878 | == GOMP_MAP_FIRSTPRIVATE_REFERENCE))) | |
7879 | break; | |
7880 | if (!DECL_P (ovar)) | |
c34938a8 | 7881 | { |
629b3d75 MJ |
7882 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP |
7883 | && OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (c)) | |
7884 | { | |
7885 | gcc_checking_assert (OMP_CLAUSE_DECL (OMP_CLAUSE_CHAIN (c)) | |
7886 | == get_base_address (ovar)); | |
7887 | nc = OMP_CLAUSE_CHAIN (c); | |
7888 | ovar = OMP_CLAUSE_DECL (nc); | |
7889 | } | |
7890 | else | |
7891 | { | |
7892 | tree x = build_sender_ref (ovar, ctx); | |
7893 | tree v | |
7894 | = build_fold_addr_expr_with_type (ovar, ptr_type_node); | |
7895 | gimplify_assign (x, v, &ilist); | |
7896 | nc = NULL_TREE; | |
7897 | } | |
7898 | } | |
7899 | else | |
7900 | { | |
7901 | if (DECL_SIZE (ovar) | |
7902 | && TREE_CODE (DECL_SIZE (ovar)) != INTEGER_CST) | |
7903 | { | |
7904 | tree ovar2 = DECL_VALUE_EXPR (ovar); | |
7905 | gcc_assert (TREE_CODE (ovar2) == INDIRECT_REF); | |
7906 | ovar2 = TREE_OPERAND (ovar2, 0); | |
7907 | gcc_assert (DECL_P (ovar2)); | |
7908 | ovar = ovar2; | |
7909 | } | |
7910 | if (!maybe_lookup_field (ovar, ctx)) | |
7911 | continue; | |
c34938a8 | 7912 | } |
777f7f9a | 7913 | |
629b3d75 MJ |
7914 | talign = TYPE_ALIGN_UNIT (TREE_TYPE (ovar)); |
7915 | if (DECL_P (ovar) && DECL_ALIGN_UNIT (ovar) > talign) | |
7916 | talign = DECL_ALIGN_UNIT (ovar); | |
7917 | if (nc) | |
7918 | { | |
7919 | var = lookup_decl_in_outer_ctx (ovar, ctx); | |
7920 | x = build_sender_ref (ovar, ctx); | |
777f7f9a | 7921 | |
629b3d75 MJ |
7922 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP |
7923 | && OMP_CLAUSE_MAP_KIND (c) == GOMP_MAP_POINTER | |
7924 | && !OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (c) | |
7925 | && TREE_CODE (TREE_TYPE (ovar)) == ARRAY_TYPE) | |
7926 | { | |
7927 | gcc_assert (offloaded); | |
7928 | tree avar | |
7929 | = create_tmp_var (TREE_TYPE (TREE_TYPE (x))); | |
7930 | mark_addressable (avar); | |
7931 | gimplify_assign (avar, build_fold_addr_expr (var), &ilist); | |
7932 | talign = DECL_ALIGN_UNIT (avar); | |
7933 | avar = build_fold_addr_expr (avar); | |
7934 | gimplify_assign (x, avar, &ilist); | |
7935 | } | |
7936 | else if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_FIRSTPRIVATE) | |
7937 | { | |
7938 | gcc_assert (is_gimple_omp_oacc (ctx->stmt)); | |
7939 | if (!omp_is_reference (var)) | |
7940 | { | |
7941 | if (is_gimple_reg (var) | |
7942 | && OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT (c)) | |
7943 | TREE_NO_WARNING (var) = 1; | |
7944 | var = build_fold_addr_expr (var); | |
7945 | } | |
7946 | else | |
7947 | talign = TYPE_ALIGN_UNIT (TREE_TYPE (TREE_TYPE (ovar))); | |
7948 | gimplify_assign (x, var, &ilist); | |
7949 | } | |
7950 | else if (is_gimple_reg (var)) | |
7951 | { | |
7952 | gcc_assert (offloaded); | |
7953 | tree avar = create_tmp_var (TREE_TYPE (var)); | |
7954 | mark_addressable (avar); | |
7955 | enum gomp_map_kind map_kind = OMP_CLAUSE_MAP_KIND (c); | |
7956 | if (GOMP_MAP_COPY_TO_P (map_kind) | |
7957 | || map_kind == GOMP_MAP_POINTER | |
7958 | || map_kind == GOMP_MAP_TO_PSET | |
7959 | || map_kind == GOMP_MAP_FORCE_DEVICEPTR) | |
7960 | { | |
7961 | /* If we need to initialize a temporary | |
7962 | with VAR because it is not addressable, and | |
7963 | the variable hasn't been initialized yet, then | |
7964 | we'll get a warning for the store to avar. | |
7965 | Don't warn in that case, the mapping might | |
7966 | be implicit. */ | |
7967 | TREE_NO_WARNING (var) = 1; | |
7968 | gimplify_assign (avar, var, &ilist); | |
7969 | } | |
7970 | avar = build_fold_addr_expr (avar); | |
7971 | gimplify_assign (x, avar, &ilist); | |
7972 | if ((GOMP_MAP_COPY_FROM_P (map_kind) | |
7973 | || map_kind == GOMP_MAP_FORCE_DEVICEPTR) | |
7974 | && !TYPE_READONLY (TREE_TYPE (var))) | |
7975 | { | |
7976 | x = unshare_expr (x); | |
7977 | x = build_simple_mem_ref (x); | |
7978 | gimplify_assign (var, x, &olist); | |
7979 | } | |
7980 | } | |
7981 | else | |
7982 | { | |
7983 | var = build_fold_addr_expr (var); | |
7984 | gimplify_assign (x, var, &ilist); | |
7985 | } | |
7986 | } | |
7987 | s = NULL_TREE; | |
7988 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_FIRSTPRIVATE) | |
7989 | { | |
7990 | gcc_checking_assert (is_gimple_omp_oacc (ctx->stmt)); | |
7991 | s = TREE_TYPE (ovar); | |
7992 | if (TREE_CODE (s) == REFERENCE_TYPE) | |
7993 | s = TREE_TYPE (s); | |
7994 | s = TYPE_SIZE_UNIT (s); | |
7995 | } | |
7996 | else | |
7997 | s = OMP_CLAUSE_SIZE (c); | |
7998 | if (s == NULL_TREE) | |
7999 | s = TYPE_SIZE_UNIT (TREE_TYPE (ovar)); | |
8000 | s = fold_convert (size_type_node, s); | |
8001 | purpose = size_int (map_idx++); | |
8002 | CONSTRUCTOR_APPEND_ELT (vsize, purpose, s); | |
8003 | if (TREE_CODE (s) != INTEGER_CST) | |
8004 | TREE_STATIC (TREE_VEC_ELT (t, 1)) = 0; | |
777f7f9a | 8005 | |
629b3d75 MJ |
8006 | unsigned HOST_WIDE_INT tkind, tkind_zero; |
8007 | switch (OMP_CLAUSE_CODE (c)) | |
8008 | { | |
8009 | case OMP_CLAUSE_MAP: | |
8010 | tkind = OMP_CLAUSE_MAP_KIND (c); | |
8011 | tkind_zero = tkind; | |
8012 | if (OMP_CLAUSE_MAP_MAYBE_ZERO_LENGTH_ARRAY_SECTION (c)) | |
8013 | switch (tkind) | |
8014 | { | |
8015 | case GOMP_MAP_ALLOC: | |
8016 | case GOMP_MAP_TO: | |
8017 | case GOMP_MAP_FROM: | |
8018 | case GOMP_MAP_TOFROM: | |
8019 | case GOMP_MAP_ALWAYS_TO: | |
8020 | case GOMP_MAP_ALWAYS_FROM: | |
8021 | case GOMP_MAP_ALWAYS_TOFROM: | |
8022 | case GOMP_MAP_RELEASE: | |
8023 | case GOMP_MAP_FORCE_TO: | |
8024 | case GOMP_MAP_FORCE_FROM: | |
8025 | case GOMP_MAP_FORCE_TOFROM: | |
8026 | case GOMP_MAP_FORCE_PRESENT: | |
8027 | tkind_zero = GOMP_MAP_ZERO_LEN_ARRAY_SECTION; | |
8028 | break; | |
8029 | case GOMP_MAP_DELETE: | |
8030 | tkind_zero = GOMP_MAP_DELETE_ZERO_LEN_ARRAY_SECTION; | |
8031 | default: | |
8032 | break; | |
8033 | } | |
8034 | if (tkind_zero != tkind) | |
8035 | { | |
8036 | if (integer_zerop (s)) | |
8037 | tkind = tkind_zero; | |
8038 | else if (integer_nonzerop (s)) | |
8039 | tkind_zero = tkind; | |
8040 | } | |
8041 | break; | |
8042 | case OMP_CLAUSE_FIRSTPRIVATE: | |
8043 | gcc_checking_assert (is_gimple_omp_oacc (ctx->stmt)); | |
8044 | tkind = GOMP_MAP_TO; | |
8045 | tkind_zero = tkind; | |
8046 | break; | |
8047 | case OMP_CLAUSE_TO: | |
8048 | tkind = GOMP_MAP_TO; | |
8049 | tkind_zero = tkind; | |
8050 | break; | |
8051 | case OMP_CLAUSE_FROM: | |
8052 | tkind = GOMP_MAP_FROM; | |
8053 | tkind_zero = tkind; | |
8054 | break; | |
8055 | default: | |
8056 | gcc_unreachable (); | |
8057 | } | |
8058 | gcc_checking_assert (tkind | |
8059 | < (HOST_WIDE_INT_C (1U) << talign_shift)); | |
8060 | gcc_checking_assert (tkind_zero | |
8061 | < (HOST_WIDE_INT_C (1U) << talign_shift)); | |
8062 | talign = ceil_log2 (talign); | |
8063 | tkind |= talign << talign_shift; | |
8064 | tkind_zero |= talign << talign_shift; | |
8065 | gcc_checking_assert (tkind | |
8066 | <= tree_to_uhwi (TYPE_MAX_VALUE (tkind_type))); | |
8067 | gcc_checking_assert (tkind_zero | |
8068 | <= tree_to_uhwi (TYPE_MAX_VALUE (tkind_type))); | |
8069 | if (tkind == tkind_zero) | |
8070 | x = build_int_cstu (tkind_type, tkind); | |
8071 | else | |
8072 | { | |
8073 | TREE_STATIC (TREE_VEC_ELT (t, 2)) = 0; | |
8074 | x = build3 (COND_EXPR, tkind_type, | |
8075 | fold_build2 (EQ_EXPR, boolean_type_node, | |
8076 | unshare_expr (s), size_zero_node), | |
8077 | build_int_cstu (tkind_type, tkind_zero), | |
8078 | build_int_cstu (tkind_type, tkind)); | |
8079 | } | |
8080 | CONSTRUCTOR_APPEND_ELT (vkind, purpose, x); | |
8081 | if (nc && nc != c) | |
8082 | c = nc; | |
8083 | break; | |
05409788 | 8084 | |
629b3d75 MJ |
8085 | case OMP_CLAUSE_FIRSTPRIVATE: |
8086 | if (is_oacc_parallel (ctx)) | |
8087 | goto oacc_firstprivate_map; | |
8088 | ovar = OMP_CLAUSE_DECL (c); | |
8089 | if (omp_is_reference (ovar)) | |
8090 | talign = TYPE_ALIGN_UNIT (TREE_TYPE (TREE_TYPE (ovar))); | |
8091 | else | |
8092 | talign = DECL_ALIGN_UNIT (ovar); | |
8093 | var = lookup_decl_in_outer_ctx (ovar, ctx); | |
8094 | x = build_sender_ref (ovar, ctx); | |
8095 | tkind = GOMP_MAP_FIRSTPRIVATE; | |
8096 | type = TREE_TYPE (ovar); | |
8097 | if (omp_is_reference (ovar)) | |
8098 | type = TREE_TYPE (type); | |
8099 | if ((INTEGRAL_TYPE_P (type) | |
8100 | && TYPE_PRECISION (type) <= POINTER_SIZE) | |
8101 | || TREE_CODE (type) == POINTER_TYPE) | |
8102 | { | |
8103 | tkind = GOMP_MAP_FIRSTPRIVATE_INT; | |
8104 | tree t = var; | |
8105 | if (omp_is_reference (var)) | |
8106 | t = build_simple_mem_ref (var); | |
8107 | else if (OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT (c)) | |
8108 | TREE_NO_WARNING (var) = 1; | |
8109 | if (TREE_CODE (type) != POINTER_TYPE) | |
8110 | t = fold_convert (pointer_sized_int_node, t); | |
8111 | t = fold_convert (TREE_TYPE (x), t); | |
8112 | gimplify_assign (x, t, &ilist); | |
8113 | } | |
8114 | else if (omp_is_reference (var)) | |
8115 | gimplify_assign (x, var, &ilist); | |
8116 | else if (is_gimple_reg (var)) | |
8117 | { | |
8118 | tree avar = create_tmp_var (TREE_TYPE (var)); | |
8119 | mark_addressable (avar); | |
8120 | if (OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT (c)) | |
8121 | TREE_NO_WARNING (var) = 1; | |
8122 | gimplify_assign (avar, var, &ilist); | |
8123 | avar = build_fold_addr_expr (avar); | |
8124 | gimplify_assign (x, avar, &ilist); | |
8125 | } | |
8126 | else | |
8127 | { | |
8128 | var = build_fold_addr_expr (var); | |
8129 | gimplify_assign (x, var, &ilist); | |
8130 | } | |
8131 | if (tkind == GOMP_MAP_FIRSTPRIVATE_INT) | |
8132 | s = size_int (0); | |
8133 | else if (omp_is_reference (ovar)) | |
8134 | s = TYPE_SIZE_UNIT (TREE_TYPE (TREE_TYPE (ovar))); | |
8135 | else | |
8136 | s = TYPE_SIZE_UNIT (TREE_TYPE (ovar)); | |
8137 | s = fold_convert (size_type_node, s); | |
8138 | purpose = size_int (map_idx++); | |
8139 | CONSTRUCTOR_APPEND_ELT (vsize, purpose, s); | |
8140 | if (TREE_CODE (s) != INTEGER_CST) | |
8141 | TREE_STATIC (TREE_VEC_ELT (t, 1)) = 0; | |
05409788 | 8142 | |
629b3d75 MJ |
8143 | gcc_checking_assert (tkind |
8144 | < (HOST_WIDE_INT_C (1U) << talign_shift)); | |
8145 | talign = ceil_log2 (talign); | |
8146 | tkind |= talign << talign_shift; | |
8147 | gcc_checking_assert (tkind | |
8148 | <= tree_to_uhwi (TYPE_MAX_VALUE (tkind_type))); | |
8149 | CONSTRUCTOR_APPEND_ELT (vkind, purpose, | |
8150 | build_int_cstu (tkind_type, tkind)); | |
8151 | break; | |
05409788 | 8152 | |
629b3d75 MJ |
8153 | case OMP_CLAUSE_USE_DEVICE_PTR: |
8154 | case OMP_CLAUSE_IS_DEVICE_PTR: | |
8155 | ovar = OMP_CLAUSE_DECL (c); | |
8156 | var = lookup_decl_in_outer_ctx (ovar, ctx); | |
8157 | x = build_sender_ref (ovar, ctx); | |
8158 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_USE_DEVICE_PTR) | |
8159 | tkind = GOMP_MAP_USE_DEVICE_PTR; | |
8160 | else | |
8161 | tkind = GOMP_MAP_FIRSTPRIVATE_INT; | |
8162 | type = TREE_TYPE (ovar); | |
8163 | if (TREE_CODE (type) == ARRAY_TYPE) | |
8164 | var = build_fold_addr_expr (var); | |
8165 | else | |
8166 | { | |
8167 | if (omp_is_reference (ovar)) | |
8168 | { | |
8169 | type = TREE_TYPE (type); | |
8170 | if (TREE_CODE (type) != ARRAY_TYPE) | |
8171 | var = build_simple_mem_ref (var); | |
8172 | var = fold_convert (TREE_TYPE (x), var); | |
8173 | } | |
8174 | } | |
8175 | gimplify_assign (x, var, &ilist); | |
8176 | s = size_int (0); | |
8177 | purpose = size_int (map_idx++); | |
8178 | CONSTRUCTOR_APPEND_ELT (vsize, purpose, s); | |
8179 | gcc_checking_assert (tkind | |
8180 | < (HOST_WIDE_INT_C (1U) << talign_shift)); | |
8181 | gcc_checking_assert (tkind | |
8182 | <= tree_to_uhwi (TYPE_MAX_VALUE (tkind_type))); | |
8183 | CONSTRUCTOR_APPEND_ELT (vkind, purpose, | |
8184 | build_int_cstu (tkind_type, tkind)); | |
8185 | break; | |
8186 | } | |
05409788 | 8187 | |
629b3d75 | 8188 | gcc_assert (map_idx == map_cnt); |
20906c66 | 8189 | |
629b3d75 MJ |
8190 | DECL_INITIAL (TREE_VEC_ELT (t, 1)) |
8191 | = build_constructor (TREE_TYPE (TREE_VEC_ELT (t, 1)), vsize); | |
8192 | DECL_INITIAL (TREE_VEC_ELT (t, 2)) | |
8193 | = build_constructor (TREE_TYPE (TREE_VEC_ELT (t, 2)), vkind); | |
8194 | for (int i = 1; i <= 2; i++) | |
8195 | if (!TREE_STATIC (TREE_VEC_ELT (t, i))) | |
8196 | { | |
8197 | gimple_seq initlist = NULL; | |
8198 | force_gimple_operand (build1 (DECL_EXPR, void_type_node, | |
8199 | TREE_VEC_ELT (t, i)), | |
8200 | &initlist, true, NULL_TREE); | |
8201 | gimple_seq_add_seq (&ilist, initlist); | |
20906c66 | 8202 | |
629b3d75 MJ |
8203 | tree clobber = build_constructor (TREE_TYPE (TREE_VEC_ELT (t, i)), |
8204 | NULL); | |
8205 | TREE_THIS_VOLATILE (clobber) = 1; | |
8206 | gimple_seq_add_stmt (&olist, | |
8207 | gimple_build_assign (TREE_VEC_ELT (t, i), | |
8208 | clobber)); | |
8209 | } | |
05409788 | 8210 | |
629b3d75 MJ |
8211 | tree clobber = build_constructor (ctx->record_type, NULL); |
8212 | TREE_THIS_VOLATILE (clobber) = 1; | |
8213 | gimple_seq_add_stmt (&olist, gimple_build_assign (ctx->sender_decl, | |
8214 | clobber)); | |
8215 | } | |
05409788 | 8216 | |
629b3d75 MJ |
8217 | /* Once all the expansions are done, sequence all the different |
8218 | fragments inside gimple_omp_body. */ | |
05409788 | 8219 | |
629b3d75 | 8220 | new_body = NULL; |
05409788 | 8221 | |
629b3d75 MJ |
8222 | if (offloaded |
8223 | && ctx->record_type) | |
05409788 | 8224 | { |
629b3d75 MJ |
8225 | t = build_fold_addr_expr_loc (loc, ctx->sender_decl); |
8226 | /* fixup_child_record_type might have changed receiver_decl's type. */ | |
8227 | t = fold_convert_loc (loc, TREE_TYPE (ctx->receiver_decl), t); | |
8228 | gimple_seq_add_stmt (&new_body, | |
8229 | gimple_build_assign (ctx->receiver_decl, t)); | |
05409788 | 8230 | } |
629b3d75 | 8231 | gimple_seq_add_seq (&new_body, fplist); |
05409788 | 8232 | |
629b3d75 | 8233 | if (offloaded || data_region) |
0645c1a2 | 8234 | { |
629b3d75 MJ |
8235 | tree prev = NULL_TREE; |
8236 | for (c = clauses; c ; c = OMP_CLAUSE_CHAIN (c)) | |
8237 | switch (OMP_CLAUSE_CODE (c)) | |
0645c1a2 | 8238 | { |
629b3d75 MJ |
8239 | tree var, x; |
8240 | default: | |
8241 | break; | |
8242 | case OMP_CLAUSE_FIRSTPRIVATE: | |
8243 | if (is_gimple_omp_oacc (ctx->stmt)) | |
8244 | break; | |
8245 | var = OMP_CLAUSE_DECL (c); | |
8246 | if (omp_is_reference (var) | |
8247 | || is_gimple_reg_type (TREE_TYPE (var))) | |
0645c1a2 | 8248 | { |
629b3d75 MJ |
8249 | tree new_var = lookup_decl (var, ctx); |
8250 | tree type; | |
8251 | type = TREE_TYPE (var); | |
8252 | if (omp_is_reference (var)) | |
8253 | type = TREE_TYPE (type); | |
8254 | if ((INTEGRAL_TYPE_P (type) | |
8255 | && TYPE_PRECISION (type) <= POINTER_SIZE) | |
8256 | || TREE_CODE (type) == POINTER_TYPE) | |
8257 | { | |
8258 | x = build_receiver_ref (var, false, ctx); | |
8259 | if (TREE_CODE (type) != POINTER_TYPE) | |
8260 | x = fold_convert (pointer_sized_int_node, x); | |
8261 | x = fold_convert (type, x); | |
8262 | gimplify_expr (&x, &new_body, NULL, is_gimple_val, | |
8263 | fb_rvalue); | |
8264 | if (omp_is_reference (var)) | |
8265 | { | |
8266 | tree v = create_tmp_var_raw (type, get_name (var)); | |
8267 | gimple_add_tmp_var (v); | |
8268 | TREE_ADDRESSABLE (v) = 1; | |
8269 | gimple_seq_add_stmt (&new_body, | |
8270 | gimple_build_assign (v, x)); | |
8271 | x = build_fold_addr_expr (v); | |
8272 | } | |
8273 | gimple_seq_add_stmt (&new_body, | |
8274 | gimple_build_assign (new_var, x)); | |
8275 | } | |
8276 | else | |
8277 | { | |
8278 | x = build_receiver_ref (var, !omp_is_reference (var), ctx); | |
8279 | gimplify_expr (&x, &new_body, NULL, is_gimple_val, | |
8280 | fb_rvalue); | |
8281 | gimple_seq_add_stmt (&new_body, | |
8282 | gimple_build_assign (new_var, x)); | |
8283 | } | |
8284 | } | |
8285 | else if (is_variable_sized (var)) | |
8286 | { | |
8287 | tree pvar = DECL_VALUE_EXPR (var); | |
8288 | gcc_assert (TREE_CODE (pvar) == INDIRECT_REF); | |
8289 | pvar = TREE_OPERAND (pvar, 0); | |
8290 | gcc_assert (DECL_P (pvar)); | |
8291 | tree new_var = lookup_decl (pvar, ctx); | |
8292 | x = build_receiver_ref (var, false, ctx); | |
8293 | gimplify_expr (&x, &new_body, NULL, is_gimple_val, fb_rvalue); | |
8294 | gimple_seq_add_stmt (&new_body, | |
8295 | gimple_build_assign (new_var, x)); | |
8296 | } | |
8297 | break; | |
8298 | case OMP_CLAUSE_PRIVATE: | |
8299 | if (is_gimple_omp_oacc (ctx->stmt)) | |
8300 | break; | |
8301 | var = OMP_CLAUSE_DECL (c); | |
8302 | if (omp_is_reference (var)) | |
8303 | { | |
8304 | location_t clause_loc = OMP_CLAUSE_LOCATION (c); | |
8305 | tree new_var = lookup_decl (var, ctx); | |
8306 | x = TYPE_SIZE_UNIT (TREE_TYPE (TREE_TYPE (new_var))); | |
8307 | if (TREE_CONSTANT (x)) | |
8308 | { | |
8309 | x = create_tmp_var_raw (TREE_TYPE (TREE_TYPE (new_var)), | |
8310 | get_name (var)); | |
8311 | gimple_add_tmp_var (x); | |
8312 | TREE_ADDRESSABLE (x) = 1; | |
8313 | x = build_fold_addr_expr_loc (clause_loc, x); | |
8314 | } | |
8315 | else | |
8316 | break; | |
9bd46bc9 | 8317 | |
629b3d75 MJ |
8318 | x = fold_convert_loc (clause_loc, TREE_TYPE (new_var), x); |
8319 | gimplify_expr (&x, &new_body, NULL, is_gimple_val, fb_rvalue); | |
8320 | gimple_seq_add_stmt (&new_body, | |
8321 | gimple_build_assign (new_var, x)); | |
8322 | } | |
8323 | break; | |
8324 | case OMP_CLAUSE_USE_DEVICE_PTR: | |
8325 | case OMP_CLAUSE_IS_DEVICE_PTR: | |
8326 | var = OMP_CLAUSE_DECL (c); | |
8327 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_USE_DEVICE_PTR) | |
8328 | x = build_sender_ref (var, ctx); | |
8329 | else | |
8330 | x = build_receiver_ref (var, false, ctx); | |
8331 | if (is_variable_sized (var)) | |
8332 | { | |
8333 | tree pvar = DECL_VALUE_EXPR (var); | |
8334 | gcc_assert (TREE_CODE (pvar) == INDIRECT_REF); | |
8335 | pvar = TREE_OPERAND (pvar, 0); | |
8336 | gcc_assert (DECL_P (pvar)); | |
8337 | tree new_var = lookup_decl (pvar, ctx); | |
8338 | gimplify_expr (&x, &new_body, NULL, is_gimple_val, fb_rvalue); | |
8339 | gimple_seq_add_stmt (&new_body, | |
8340 | gimple_build_assign (new_var, x)); | |
8341 | } | |
8342 | else if (TREE_CODE (TREE_TYPE (var)) == ARRAY_TYPE) | |
8343 | { | |
8344 | tree new_var = lookup_decl (var, ctx); | |
8345 | new_var = DECL_VALUE_EXPR (new_var); | |
8346 | gcc_assert (TREE_CODE (new_var) == MEM_REF); | |
8347 | new_var = TREE_OPERAND (new_var, 0); | |
8348 | gcc_assert (DECL_P (new_var)); | |
8349 | gimplify_expr (&x, &new_body, NULL, is_gimple_val, fb_rvalue); | |
8350 | gimple_seq_add_stmt (&new_body, | |
8351 | gimple_build_assign (new_var, x)); | |
8352 | } | |
9bd46bc9 | 8353 | else |
629b3d75 MJ |
8354 | { |
8355 | tree type = TREE_TYPE (var); | |
8356 | tree new_var = lookup_decl (var, ctx); | |
8357 | if (omp_is_reference (var)) | |
8358 | { | |
8359 | type = TREE_TYPE (type); | |
8360 | if (TREE_CODE (type) != ARRAY_TYPE) | |
8361 | { | |
8362 | tree v = create_tmp_var_raw (type, get_name (var)); | |
8363 | gimple_add_tmp_var (v); | |
8364 | TREE_ADDRESSABLE (v) = 1; | |
8365 | x = fold_convert (type, x); | |
8366 | gimplify_expr (&x, &new_body, NULL, is_gimple_val, | |
8367 | fb_rvalue); | |
8368 | gimple_seq_add_stmt (&new_body, | |
8369 | gimple_build_assign (v, x)); | |
8370 | x = build_fold_addr_expr (v); | |
8371 | } | |
8372 | } | |
8373 | new_var = DECL_VALUE_EXPR (new_var); | |
8374 | x = fold_convert (TREE_TYPE (new_var), x); | |
8375 | gimplify_expr (&x, &new_body, NULL, is_gimple_val, fb_rvalue); | |
8376 | gimple_seq_add_stmt (&new_body, | |
8377 | gimple_build_assign (new_var, x)); | |
8378 | } | |
8379 | break; | |
9bd46bc9 | 8380 | } |
629b3d75 MJ |
8381 | /* Handle GOMP_MAP_FIRSTPRIVATE_{POINTER,REFERENCE} in second pass, |
8382 | so that firstprivate vars holding OMP_CLAUSE_SIZE if needed | |
8383 | are already handled. Similarly OMP_CLAUSE_PRIVATE for VLAs | |
8384 | or references to VLAs. */ | |
8385 | for (c = clauses; c; c = OMP_CLAUSE_CHAIN (c)) | |
8386 | switch (OMP_CLAUSE_CODE (c)) | |
8387 | { | |
8388 | tree var; | |
8389 | default: | |
8390 | break; | |
8391 | case OMP_CLAUSE_MAP: | |
8392 | if (OMP_CLAUSE_MAP_KIND (c) == GOMP_MAP_FIRSTPRIVATE_POINTER | |
8393 | || OMP_CLAUSE_MAP_KIND (c) == GOMP_MAP_FIRSTPRIVATE_REFERENCE) | |
8394 | { | |
8395 | location_t clause_loc = OMP_CLAUSE_LOCATION (c); | |
a90c8804 | 8396 | poly_int64 offset = 0; |
629b3d75 MJ |
8397 | gcc_assert (prev); |
8398 | var = OMP_CLAUSE_DECL (c); | |
8399 | if (DECL_P (var) | |
8400 | && TREE_CODE (TREE_TYPE (var)) == ARRAY_TYPE | |
8401 | && is_global_var (maybe_lookup_decl_in_outer_ctx (var, | |
8402 | ctx)) | |
8403 | && varpool_node::get_create (var)->offloadable) | |
8404 | break; | |
8405 | if (TREE_CODE (var) == INDIRECT_REF | |
8406 | && TREE_CODE (TREE_OPERAND (var, 0)) == COMPONENT_REF) | |
8407 | var = TREE_OPERAND (var, 0); | |
8408 | if (TREE_CODE (var) == COMPONENT_REF) | |
8409 | { | |
8410 | var = get_addr_base_and_unit_offset (var, &offset); | |
8411 | gcc_assert (var != NULL_TREE && DECL_P (var)); | |
8412 | } | |
8413 | else if (DECL_SIZE (var) | |
8414 | && TREE_CODE (DECL_SIZE (var)) != INTEGER_CST) | |
8415 | { | |
8416 | tree var2 = DECL_VALUE_EXPR (var); | |
8417 | gcc_assert (TREE_CODE (var2) == INDIRECT_REF); | |
8418 | var2 = TREE_OPERAND (var2, 0); | |
8419 | gcc_assert (DECL_P (var2)); | |
8420 | var = var2; | |
8421 | } | |
8422 | tree new_var = lookup_decl (var, ctx), x; | |
8423 | tree type = TREE_TYPE (new_var); | |
8424 | bool is_ref; | |
8425 | if (TREE_CODE (OMP_CLAUSE_DECL (c)) == INDIRECT_REF | |
8426 | && (TREE_CODE (TREE_OPERAND (OMP_CLAUSE_DECL (c), 0)) | |
8427 | == COMPONENT_REF)) | |
8428 | { | |
8429 | type = TREE_TYPE (TREE_OPERAND (OMP_CLAUSE_DECL (c), 0)); | |
8430 | is_ref = true; | |
8431 | new_var = build2 (MEM_REF, type, | |
8432 | build_fold_addr_expr (new_var), | |
8433 | build_int_cst (build_pointer_type (type), | |
8434 | offset)); | |
8435 | } | |
8436 | else if (TREE_CODE (OMP_CLAUSE_DECL (c)) == COMPONENT_REF) | |
8437 | { | |
8438 | type = TREE_TYPE (OMP_CLAUSE_DECL (c)); | |
8439 | is_ref = TREE_CODE (type) == REFERENCE_TYPE; | |
8440 | new_var = build2 (MEM_REF, type, | |
8441 | build_fold_addr_expr (new_var), | |
8442 | build_int_cst (build_pointer_type (type), | |
8443 | offset)); | |
8444 | } | |
8445 | else | |
8446 | is_ref = omp_is_reference (var); | |
8447 | if (OMP_CLAUSE_MAP_KIND (c) == GOMP_MAP_FIRSTPRIVATE_REFERENCE) | |
8448 | is_ref = false; | |
8449 | bool ref_to_array = false; | |
8450 | if (is_ref) | |
8451 | { | |
8452 | type = TREE_TYPE (type); | |
8453 | if (TREE_CODE (type) == ARRAY_TYPE) | |
8454 | { | |
8455 | type = build_pointer_type (type); | |
8456 | ref_to_array = true; | |
8457 | } | |
8458 | } | |
8459 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
8460 | { | |
8461 | tree decl2 = DECL_VALUE_EXPR (new_var); | |
8462 | gcc_assert (TREE_CODE (decl2) == MEM_REF); | |
8463 | decl2 = TREE_OPERAND (decl2, 0); | |
8464 | gcc_assert (DECL_P (decl2)); | |
8465 | new_var = decl2; | |
8466 | type = TREE_TYPE (new_var); | |
8467 | } | |
8468 | x = build_receiver_ref (OMP_CLAUSE_DECL (prev), false, ctx); | |
8469 | x = fold_convert_loc (clause_loc, type, x); | |
8470 | if (!integer_zerop (OMP_CLAUSE_SIZE (c))) | |
8471 | { | |
8472 | tree bias = OMP_CLAUSE_SIZE (c); | |
8473 | if (DECL_P (bias)) | |
8474 | bias = lookup_decl (bias, ctx); | |
8475 | bias = fold_convert_loc (clause_loc, sizetype, bias); | |
8476 | bias = fold_build1_loc (clause_loc, NEGATE_EXPR, sizetype, | |
8477 | bias); | |
8478 | x = fold_build2_loc (clause_loc, POINTER_PLUS_EXPR, | |
8479 | TREE_TYPE (x), x, bias); | |
8480 | } | |
8481 | if (ref_to_array) | |
8482 | x = fold_convert_loc (clause_loc, TREE_TYPE (new_var), x); | |
8483 | gimplify_expr (&x, &new_body, NULL, is_gimple_val, fb_rvalue); | |
8484 | if (is_ref && !ref_to_array) | |
8485 | { | |
8486 | tree t = create_tmp_var_raw (type, get_name (var)); | |
8487 | gimple_add_tmp_var (t); | |
8488 | TREE_ADDRESSABLE (t) = 1; | |
8489 | gimple_seq_add_stmt (&new_body, | |
8490 | gimple_build_assign (t, x)); | |
8491 | x = build_fold_addr_expr_loc (clause_loc, t); | |
8492 | } | |
8493 | gimple_seq_add_stmt (&new_body, | |
8494 | gimple_build_assign (new_var, x)); | |
8495 | prev = NULL_TREE; | |
8496 | } | |
8497 | else if (OMP_CLAUSE_CHAIN (c) | |
8498 | && OMP_CLAUSE_CODE (OMP_CLAUSE_CHAIN (c)) | |
8499 | == OMP_CLAUSE_MAP | |
8500 | && (OMP_CLAUSE_MAP_KIND (OMP_CLAUSE_CHAIN (c)) | |
8501 | == GOMP_MAP_FIRSTPRIVATE_POINTER | |
8502 | || (OMP_CLAUSE_MAP_KIND (OMP_CLAUSE_CHAIN (c)) | |
8503 | == GOMP_MAP_FIRSTPRIVATE_REFERENCE))) | |
8504 | prev = c; | |
8505 | break; | |
8506 | case OMP_CLAUSE_PRIVATE: | |
8507 | var = OMP_CLAUSE_DECL (c); | |
8508 | if (is_variable_sized (var)) | |
8509 | { | |
8510 | location_t clause_loc = OMP_CLAUSE_LOCATION (c); | |
8511 | tree new_var = lookup_decl (var, ctx); | |
8512 | tree pvar = DECL_VALUE_EXPR (var); | |
8513 | gcc_assert (TREE_CODE (pvar) == INDIRECT_REF); | |
8514 | pvar = TREE_OPERAND (pvar, 0); | |
8515 | gcc_assert (DECL_P (pvar)); | |
8516 | tree new_pvar = lookup_decl (pvar, ctx); | |
8517 | tree atmp = builtin_decl_explicit (BUILT_IN_ALLOCA_WITH_ALIGN); | |
8518 | tree al = size_int (DECL_ALIGN (var)); | |
8519 | tree x = TYPE_SIZE_UNIT (TREE_TYPE (new_var)); | |
8520 | x = build_call_expr_loc (clause_loc, atmp, 2, x, al); | |
8521 | x = fold_convert_loc (clause_loc, TREE_TYPE (new_pvar), x); | |
8522 | gimplify_expr (&x, &new_body, NULL, is_gimple_val, fb_rvalue); | |
8523 | gimple_seq_add_stmt (&new_body, | |
8524 | gimple_build_assign (new_pvar, x)); | |
8525 | } | |
8526 | else if (omp_is_reference (var) && !is_gimple_omp_oacc (ctx->stmt)) | |
8527 | { | |
8528 | location_t clause_loc = OMP_CLAUSE_LOCATION (c); | |
8529 | tree new_var = lookup_decl (var, ctx); | |
8530 | tree x = TYPE_SIZE_UNIT (TREE_TYPE (TREE_TYPE (new_var))); | |
8531 | if (TREE_CONSTANT (x)) | |
8532 | break; | |
8533 | else | |
8534 | { | |
8535 | tree atmp | |
8536 | = builtin_decl_explicit (BUILT_IN_ALLOCA_WITH_ALIGN); | |
8537 | tree rtype = TREE_TYPE (TREE_TYPE (new_var)); | |
8538 | tree al = size_int (TYPE_ALIGN (rtype)); | |
8539 | x = build_call_expr_loc (clause_loc, atmp, 2, x, al); | |
8540 | } | |
9bd46bc9 | 8541 | |
629b3d75 MJ |
8542 | x = fold_convert_loc (clause_loc, TREE_TYPE (new_var), x); |
8543 | gimplify_expr (&x, &new_body, NULL, is_gimple_val, fb_rvalue); | |
8544 | gimple_seq_add_stmt (&new_body, | |
8545 | gimple_build_assign (new_var, x)); | |
8546 | } | |
8547 | break; | |
8548 | } | |
9bd46bc9 | 8549 | |
629b3d75 MJ |
8550 | gimple_seq fork_seq = NULL; |
8551 | gimple_seq join_seq = NULL; | |
9bd46bc9 | 8552 | |
629b3d75 | 8553 | if (is_oacc_parallel (ctx)) |
9bd46bc9 | 8554 | { |
629b3d75 MJ |
8555 | /* If there are reductions on the offloaded region itself, treat |
8556 | them as a dummy GANG loop. */ | |
8557 | tree level = build_int_cst (integer_type_node, GOMP_DIM_GANG); | |
9bd46bc9 | 8558 | |
629b3d75 MJ |
8559 | lower_oacc_reductions (gimple_location (ctx->stmt), clauses, level, |
8560 | false, NULL, NULL, &fork_seq, &join_seq, ctx); | |
9bd46bc9 | 8561 | } |
9bd46bc9 | 8562 | |
629b3d75 MJ |
8563 | gimple_seq_add_seq (&new_body, fork_seq); |
8564 | gimple_seq_add_seq (&new_body, tgt_body); | |
8565 | gimple_seq_add_seq (&new_body, join_seq); | |
9bd46bc9 | 8566 | |
629b3d75 MJ |
8567 | if (offloaded) |
8568 | new_body = maybe_catch_exception (new_body); | |
9bd46bc9 | 8569 | |
629b3d75 MJ |
8570 | gimple_seq_add_stmt (&new_body, gimple_build_omp_return (false)); |
8571 | gimple_omp_set_body (stmt, new_body); | |
9bd46bc9 NS |
8572 | } |
8573 | ||
629b3d75 MJ |
8574 | bind = gimple_build_bind (NULL, NULL, |
8575 | tgt_bind ? gimple_bind_block (tgt_bind) | |
8576 | : NULL_TREE); | |
8577 | gsi_replace (gsi_p, dep_bind ? dep_bind : bind, true); | |
8578 | gimple_bind_add_seq (bind, ilist); | |
8579 | gimple_bind_add_stmt (bind, stmt); | |
8580 | gimple_bind_add_seq (bind, olist); | |
9bd46bc9 NS |
8581 | |
8582 | pop_gimplify_context (NULL); | |
8583 | ||
629b3d75 | 8584 | if (dep_bind) |
b6adbb9f | 8585 | { |
629b3d75 MJ |
8586 | gimple_bind_add_seq (dep_bind, dep_ilist); |
8587 | gimple_bind_add_stmt (dep_bind, bind); | |
8588 | gimple_bind_add_seq (dep_bind, dep_olist); | |
8589 | pop_gimplify_context (dep_bind); | |
b6adbb9f | 8590 | } |
b6adbb9f NS |
8591 | } |
8592 | ||
629b3d75 | 8593 | /* Expand code for an OpenMP teams directive. */ |
94829f87 | 8594 | |
f8393eb0 | 8595 | static void |
629b3d75 | 8596 | lower_omp_teams (gimple_stmt_iterator *gsi_p, omp_context *ctx) |
94829f87 | 8597 | { |
629b3d75 MJ |
8598 | gomp_teams *teams_stmt = as_a <gomp_teams *> (gsi_stmt (*gsi_p)); |
8599 | push_gimplify_context (); | |
94829f87 | 8600 | |
629b3d75 MJ |
8601 | tree block = make_node (BLOCK); |
8602 | gbind *bind = gimple_build_bind (NULL, NULL, block); | |
8603 | gsi_replace (gsi_p, bind, true); | |
8604 | gimple_seq bind_body = NULL; | |
8605 | gimple_seq dlist = NULL; | |
8606 | gimple_seq olist = NULL; | |
94829f87 | 8607 | |
629b3d75 MJ |
8608 | tree num_teams = omp_find_clause (gimple_omp_teams_clauses (teams_stmt), |
8609 | OMP_CLAUSE_NUM_TEAMS); | |
8610 | if (num_teams == NULL_TREE) | |
8611 | num_teams = build_int_cst (unsigned_type_node, 0); | |
8612 | else | |
94829f87 | 8613 | { |
629b3d75 MJ |
8614 | num_teams = OMP_CLAUSE_NUM_TEAMS_EXPR (num_teams); |
8615 | num_teams = fold_convert (unsigned_type_node, num_teams); | |
8616 | gimplify_expr (&num_teams, &bind_body, NULL, is_gimple_val, fb_rvalue); | |
94829f87 | 8617 | } |
629b3d75 MJ |
8618 | tree thread_limit = omp_find_clause (gimple_omp_teams_clauses (teams_stmt), |
8619 | OMP_CLAUSE_THREAD_LIMIT); | |
8620 | if (thread_limit == NULL_TREE) | |
8621 | thread_limit = build_int_cst (unsigned_type_node, 0); | |
8622 | else | |
94829f87 | 8623 | { |
629b3d75 MJ |
8624 | thread_limit = OMP_CLAUSE_THREAD_LIMIT_EXPR (thread_limit); |
8625 | thread_limit = fold_convert (unsigned_type_node, thread_limit); | |
8626 | gimplify_expr (&thread_limit, &bind_body, NULL, is_gimple_val, | |
8627 | fb_rvalue); | |
94829f87 | 8628 | } |
9bd46bc9 | 8629 | |
629b3d75 MJ |
8630 | lower_rec_input_clauses (gimple_omp_teams_clauses (teams_stmt), |
8631 | &bind_body, &dlist, ctx, NULL); | |
8632 | lower_omp (gimple_omp_body_ptr (teams_stmt), ctx); | |
8633 | lower_reduction_clauses (gimple_omp_teams_clauses (teams_stmt), &olist, ctx); | |
8634 | if (!gimple_omp_teams_grid_phony (teams_stmt)) | |
9bd46bc9 | 8635 | { |
629b3d75 MJ |
8636 | gimple_seq_add_stmt (&bind_body, teams_stmt); |
8637 | location_t loc = gimple_location (teams_stmt); | |
8638 | tree decl = builtin_decl_explicit (BUILT_IN_GOMP_TEAMS); | |
8639 | gimple *call = gimple_build_call (decl, 2, num_teams, thread_limit); | |
8640 | gimple_set_location (call, loc); | |
8641 | gimple_seq_add_stmt (&bind_body, call); | |
9bd46bc9 NS |
8642 | } |
8643 | ||
629b3d75 MJ |
8644 | gimple_seq_add_seq (&bind_body, gimple_omp_body (teams_stmt)); |
8645 | gimple_omp_set_body (teams_stmt, NULL); | |
8646 | gimple_seq_add_seq (&bind_body, olist); | |
8647 | gimple_seq_add_seq (&bind_body, dlist); | |
8648 | if (!gimple_omp_teams_grid_phony (teams_stmt)) | |
8649 | gimple_seq_add_stmt (&bind_body, gimple_build_omp_return (true)); | |
8650 | gimple_bind_set_body (bind, bind_body); | |
9bd46bc9 | 8651 | |
629b3d75 | 8652 | pop_gimplify_context (bind); |
9bd46bc9 | 8653 | |
629b3d75 MJ |
8654 | gimple_bind_append_vars (bind, ctx->block_vars); |
8655 | BLOCK_VARS (block) = ctx->block_vars; | |
8656 | if (BLOCK_VARS (block)) | |
8657 | TREE_USED (block) = 1; | |
9bd46bc9 NS |
8658 | } |
8659 | ||
629b3d75 | 8660 | /* Expand code within an artificial GIMPLE_OMP_GRID_BODY OMP construct. */ |
9bd46bc9 | 8661 | |
629b3d75 MJ |
8662 | static void |
8663 | lower_omp_grid_body (gimple_stmt_iterator *gsi_p, omp_context *ctx) | |
9bd46bc9 | 8664 | { |
629b3d75 MJ |
8665 | gimple *stmt = gsi_stmt (*gsi_p); |
8666 | lower_omp (gimple_omp_body_ptr (stmt), ctx); | |
8667 | gimple_seq_add_stmt (gimple_omp_body_ptr (stmt), | |
8668 | gimple_build_omp_return (false)); | |
9bd46bc9 NS |
8669 | } |
8670 | ||
9bd46bc9 | 8671 | |
629b3d75 MJ |
8672 | /* Callback for lower_omp_1. Return non-NULL if *tp needs to be |
8673 | regimplified. If DATA is non-NULL, lower_omp_1 is outside | |
8674 | of OMP context, but with task_shared_vars set. */ | |
9bd46bc9 | 8675 | |
629b3d75 MJ |
8676 | static tree |
8677 | lower_omp_regimplify_p (tree *tp, int *walk_subtrees, | |
8678 | void *data) | |
9bd46bc9 | 8679 | { |
629b3d75 | 8680 | tree t = *tp; |
9bd46bc9 | 8681 | |
629b3d75 MJ |
8682 | /* Any variable with DECL_VALUE_EXPR needs to be regimplified. */ |
8683 | if (VAR_P (t) && data == NULL && DECL_HAS_VALUE_EXPR_P (t)) | |
8684 | return t; | |
9bd46bc9 | 8685 | |
629b3d75 MJ |
8686 | if (task_shared_vars |
8687 | && DECL_P (t) | |
8688 | && bitmap_bit_p (task_shared_vars, DECL_UID (t))) | |
8689 | return t; | |
9bd46bc9 | 8690 | |
629b3d75 MJ |
8691 | /* If a global variable has been privatized, TREE_CONSTANT on |
8692 | ADDR_EXPR might be wrong. */ | |
8693 | if (data == NULL && TREE_CODE (t) == ADDR_EXPR) | |
8694 | recompute_tree_invariant_for_addr_expr (t); | |
9bd46bc9 | 8695 | |
629b3d75 MJ |
8696 | *walk_subtrees = !IS_TYPE_OR_DECL_P (t); |
8697 | return NULL_TREE; | |
9bd46bc9 NS |
8698 | } |
8699 | ||
629b3d75 MJ |
8700 | /* Data to be communicated between lower_omp_regimplify_operands and |
8701 | lower_omp_regimplify_operands_p. */ | |
9bd46bc9 | 8702 | |
629b3d75 | 8703 | struct lower_omp_regimplify_operands_data |
9bd46bc9 | 8704 | { |
629b3d75 MJ |
8705 | omp_context *ctx; |
8706 | vec<tree> *decls; | |
8707 | }; | |
9bd46bc9 | 8708 | |
629b3d75 MJ |
8709 | /* Helper function for lower_omp_regimplify_operands. Find |
8710 | omp_member_access_dummy_var vars and adjust temporarily their | |
8711 | DECL_VALUE_EXPRs if needed. */ | |
9bd46bc9 | 8712 | |
629b3d75 MJ |
8713 | static tree |
8714 | lower_omp_regimplify_operands_p (tree *tp, int *walk_subtrees, | |
8715 | void *data) | |
9bd46bc9 | 8716 | { |
629b3d75 MJ |
8717 | tree t = omp_member_access_dummy_var (*tp); |
8718 | if (t) | |
9bd46bc9 | 8719 | { |
629b3d75 MJ |
8720 | struct walk_stmt_info *wi = (struct walk_stmt_info *) data; |
8721 | lower_omp_regimplify_operands_data *ldata | |
8722 | = (lower_omp_regimplify_operands_data *) wi->info; | |
8723 | tree o = maybe_lookup_decl (t, ldata->ctx); | |
8724 | if (o != t) | |
9bd46bc9 | 8725 | { |
629b3d75 MJ |
8726 | ldata->decls->safe_push (DECL_VALUE_EXPR (*tp)); |
8727 | ldata->decls->safe_push (*tp); | |
8728 | tree v = unshare_and_remap (DECL_VALUE_EXPR (*tp), t, o); | |
8729 | SET_DECL_VALUE_EXPR (*tp, v); | |
9bd46bc9 | 8730 | } |
9bd46bc9 | 8731 | } |
629b3d75 MJ |
8732 | *walk_subtrees = !IS_TYPE_OR_DECL_P (*tp); |
8733 | return NULL_TREE; | |
9bd46bc9 NS |
8734 | } |
8735 | ||
629b3d75 MJ |
8736 | /* Wrapper around gimple_regimplify_operands that adjusts DECL_VALUE_EXPRs |
8737 | of omp_member_access_dummy_var vars during regimplification. */ | |
9bd46bc9 NS |
8738 | |
8739 | static void | |
629b3d75 MJ |
8740 | lower_omp_regimplify_operands (omp_context *ctx, gimple *stmt, |
8741 | gimple_stmt_iterator *gsi_p) | |
9bd46bc9 | 8742 | { |
629b3d75 MJ |
8743 | auto_vec<tree, 10> decls; |
8744 | if (ctx) | |
8745 | { | |
8746 | struct walk_stmt_info wi; | |
8747 | memset (&wi, '\0', sizeof (wi)); | |
8748 | struct lower_omp_regimplify_operands_data data; | |
8749 | data.ctx = ctx; | |
8750 | data.decls = &decls; | |
8751 | wi.info = &data; | |
8752 | walk_gimple_op (stmt, lower_omp_regimplify_operands_p, &wi); | |
8753 | } | |
8754 | gimple_regimplify_operands (stmt, gsi_p); | |
8755 | while (!decls.is_empty ()) | |
8756 | { | |
8757 | tree t = decls.pop (); | |
8758 | tree v = decls.pop (); | |
8759 | SET_DECL_VALUE_EXPR (t, v); | |
8760 | } | |
9bd46bc9 NS |
8761 | } |
8762 | ||
9bd46bc9 | 8763 | static void |
629b3d75 | 8764 | lower_omp_1 (gimple_stmt_iterator *gsi_p, omp_context *ctx) |
9bd46bc9 | 8765 | { |
629b3d75 MJ |
8766 | gimple *stmt = gsi_stmt (*gsi_p); |
8767 | struct walk_stmt_info wi; | |
8768 | gcall *call_stmt; | |
9bd46bc9 | 8769 | |
629b3d75 MJ |
8770 | if (gimple_has_location (stmt)) |
8771 | input_location = gimple_location (stmt); | |
9bd46bc9 | 8772 | |
629b3d75 MJ |
8773 | if (task_shared_vars) |
8774 | memset (&wi, '\0', sizeof (wi)); | |
9bd46bc9 | 8775 | |
629b3d75 MJ |
8776 | /* If we have issued syntax errors, avoid doing any heavy lifting. |
8777 | Just replace the OMP directives with a NOP to avoid | |
8778 | confusing RTL expansion. */ | |
8779 | if (seen_error () && is_gimple_omp (stmt)) | |
9bd46bc9 | 8780 | { |
629b3d75 MJ |
8781 | gsi_replace (gsi_p, gimple_build_nop (), true); |
8782 | return; | |
8783 | } | |
9bd46bc9 | 8784 | |
629b3d75 MJ |
8785 | switch (gimple_code (stmt)) |
8786 | { | |
8787 | case GIMPLE_COND: | |
8788 | { | |
8789 | gcond *cond_stmt = as_a <gcond *> (stmt); | |
8790 | if ((ctx || task_shared_vars) | |
8791 | && (walk_tree (gimple_cond_lhs_ptr (cond_stmt), | |
8792 | lower_omp_regimplify_p, | |
8793 | ctx ? NULL : &wi, NULL) | |
8794 | || walk_tree (gimple_cond_rhs_ptr (cond_stmt), | |
8795 | lower_omp_regimplify_p, | |
8796 | ctx ? NULL : &wi, NULL))) | |
8797 | lower_omp_regimplify_operands (ctx, cond_stmt, gsi_p); | |
8798 | } | |
8799 | break; | |
8800 | case GIMPLE_CATCH: | |
8801 | lower_omp (gimple_catch_handler_ptr (as_a <gcatch *> (stmt)), ctx); | |
8802 | break; | |
8803 | case GIMPLE_EH_FILTER: | |
8804 | lower_omp (gimple_eh_filter_failure_ptr (stmt), ctx); | |
8805 | break; | |
8806 | case GIMPLE_TRY: | |
8807 | lower_omp (gimple_try_eval_ptr (stmt), ctx); | |
8808 | lower_omp (gimple_try_cleanup_ptr (stmt), ctx); | |
8809 | break; | |
8810 | case GIMPLE_TRANSACTION: | |
01914336 | 8811 | lower_omp (gimple_transaction_body_ptr (as_a <gtransaction *> (stmt)), |
629b3d75 MJ |
8812 | ctx); |
8813 | break; | |
8814 | case GIMPLE_BIND: | |
8815 | lower_omp (gimple_bind_body_ptr (as_a <gbind *> (stmt)), ctx); | |
6724f8a6 | 8816 | maybe_remove_omp_member_access_dummy_vars (as_a <gbind *> (stmt)); |
629b3d75 MJ |
8817 | break; |
8818 | case GIMPLE_OMP_PARALLEL: | |
8819 | case GIMPLE_OMP_TASK: | |
8820 | ctx = maybe_lookup_ctx (stmt); | |
8821 | gcc_assert (ctx); | |
8822 | if (ctx->cancellable) | |
8823 | ctx->cancel_label = create_artificial_label (UNKNOWN_LOCATION); | |
8824 | lower_omp_taskreg (gsi_p, ctx); | |
8825 | break; | |
8826 | case GIMPLE_OMP_FOR: | |
8827 | ctx = maybe_lookup_ctx (stmt); | |
8828 | gcc_assert (ctx); | |
8829 | if (ctx->cancellable) | |
8830 | ctx->cancel_label = create_artificial_label (UNKNOWN_LOCATION); | |
8831 | lower_omp_for (gsi_p, ctx); | |
8832 | break; | |
8833 | case GIMPLE_OMP_SECTIONS: | |
8834 | ctx = maybe_lookup_ctx (stmt); | |
8835 | gcc_assert (ctx); | |
8836 | if (ctx->cancellable) | |
8837 | ctx->cancel_label = create_artificial_label (UNKNOWN_LOCATION); | |
8838 | lower_omp_sections (gsi_p, ctx); | |
8839 | break; | |
8840 | case GIMPLE_OMP_SINGLE: | |
8841 | ctx = maybe_lookup_ctx (stmt); | |
8842 | gcc_assert (ctx); | |
8843 | lower_omp_single (gsi_p, ctx); | |
8844 | break; | |
8845 | case GIMPLE_OMP_MASTER: | |
8846 | ctx = maybe_lookup_ctx (stmt); | |
8847 | gcc_assert (ctx); | |
8848 | lower_omp_master (gsi_p, ctx); | |
8849 | break; | |
8850 | case GIMPLE_OMP_TASKGROUP: | |
8851 | ctx = maybe_lookup_ctx (stmt); | |
8852 | gcc_assert (ctx); | |
8853 | lower_omp_taskgroup (gsi_p, ctx); | |
8854 | break; | |
8855 | case GIMPLE_OMP_ORDERED: | |
8856 | ctx = maybe_lookup_ctx (stmt); | |
8857 | gcc_assert (ctx); | |
8858 | lower_omp_ordered (gsi_p, ctx); | |
8859 | break; | |
8860 | case GIMPLE_OMP_CRITICAL: | |
8861 | ctx = maybe_lookup_ctx (stmt); | |
8862 | gcc_assert (ctx); | |
8863 | lower_omp_critical (gsi_p, ctx); | |
8864 | break; | |
8865 | case GIMPLE_OMP_ATOMIC_LOAD: | |
8866 | if ((ctx || task_shared_vars) | |
8867 | && walk_tree (gimple_omp_atomic_load_rhs_ptr ( | |
8868 | as_a <gomp_atomic_load *> (stmt)), | |
8869 | lower_omp_regimplify_p, ctx ? NULL : &wi, NULL)) | |
8870 | lower_omp_regimplify_operands (ctx, stmt, gsi_p); | |
8871 | break; | |
8872 | case GIMPLE_OMP_TARGET: | |
8873 | ctx = maybe_lookup_ctx (stmt); | |
8874 | gcc_assert (ctx); | |
8875 | lower_omp_target (gsi_p, ctx); | |
8876 | break; | |
8877 | case GIMPLE_OMP_TEAMS: | |
8878 | ctx = maybe_lookup_ctx (stmt); | |
8879 | gcc_assert (ctx); | |
8880 | lower_omp_teams (gsi_p, ctx); | |
8881 | break; | |
8882 | case GIMPLE_OMP_GRID_BODY: | |
8883 | ctx = maybe_lookup_ctx (stmt); | |
8884 | gcc_assert (ctx); | |
8885 | lower_omp_grid_body (gsi_p, ctx); | |
8886 | break; | |
8887 | case GIMPLE_CALL: | |
8888 | tree fndecl; | |
8889 | call_stmt = as_a <gcall *> (stmt); | |
8890 | fndecl = gimple_call_fndecl (call_stmt); | |
8891 | if (fndecl | |
8892 | && DECL_BUILT_IN_CLASS (fndecl) == BUILT_IN_NORMAL) | |
8893 | switch (DECL_FUNCTION_CODE (fndecl)) | |
9bd46bc9 | 8894 | { |
629b3d75 MJ |
8895 | case BUILT_IN_GOMP_BARRIER: |
8896 | if (ctx == NULL) | |
8897 | break; | |
8898 | /* FALLTHRU */ | |
8899 | case BUILT_IN_GOMP_CANCEL: | |
8900 | case BUILT_IN_GOMP_CANCELLATION_POINT: | |
8901 | omp_context *cctx; | |
8902 | cctx = ctx; | |
8903 | if (gimple_code (cctx->stmt) == GIMPLE_OMP_SECTION) | |
8904 | cctx = cctx->outer; | |
8905 | gcc_assert (gimple_call_lhs (call_stmt) == NULL_TREE); | |
8906 | if (!cctx->cancellable) | |
8907 | { | |
8908 | if (DECL_FUNCTION_CODE (fndecl) | |
8909 | == BUILT_IN_GOMP_CANCELLATION_POINT) | |
8910 | { | |
8911 | stmt = gimple_build_nop (); | |
8912 | gsi_replace (gsi_p, stmt, false); | |
8913 | } | |
8914 | break; | |
8915 | } | |
8916 | if (DECL_FUNCTION_CODE (fndecl) == BUILT_IN_GOMP_BARRIER) | |
8917 | { | |
8918 | fndecl = builtin_decl_explicit (BUILT_IN_GOMP_BARRIER_CANCEL); | |
8919 | gimple_call_set_fndecl (call_stmt, fndecl); | |
8920 | gimple_call_set_fntype (call_stmt, TREE_TYPE (fndecl)); | |
8921 | } | |
8922 | tree lhs; | |
8923 | lhs = create_tmp_var (TREE_TYPE (TREE_TYPE (fndecl))); | |
8924 | gimple_call_set_lhs (call_stmt, lhs); | |
8925 | tree fallthru_label; | |
8926 | fallthru_label = create_artificial_label (UNKNOWN_LOCATION); | |
8927 | gimple *g; | |
8928 | g = gimple_build_label (fallthru_label); | |
8929 | gsi_insert_after (gsi_p, g, GSI_SAME_STMT); | |
8930 | g = gimple_build_cond (NE_EXPR, lhs, | |
8931 | fold_convert (TREE_TYPE (lhs), | |
8932 | boolean_false_node), | |
8933 | cctx->cancel_label, fallthru_label); | |
8934 | gsi_insert_after (gsi_p, g, GSI_SAME_STMT); | |
8935 | break; | |
8936 | default: | |
8937 | break; | |
9bd46bc9 | 8938 | } |
629b3d75 MJ |
8939 | /* FALLTHRU */ |
8940 | default: | |
8941 | if ((ctx || task_shared_vars) | |
8942 | && walk_gimple_op (stmt, lower_omp_regimplify_p, | |
8943 | ctx ? NULL : &wi)) | |
9bd46bc9 | 8944 | { |
629b3d75 MJ |
8945 | /* Just remove clobbers, this should happen only if we have |
8946 | "privatized" local addressable variables in SIMD regions, | |
8947 | the clobber isn't needed in that case and gimplifying address | |
8948 | of the ARRAY_REF into a pointer and creating MEM_REF based | |
8949 | clobber would create worse code than we get with the clobber | |
8950 | dropped. */ | |
8951 | if (gimple_clobber_p (stmt)) | |
4ae13300 | 8952 | { |
629b3d75 MJ |
8953 | gsi_replace (gsi_p, gimple_build_nop (), true); |
8954 | break; | |
9bd46bc9 | 8955 | } |
629b3d75 | 8956 | lower_omp_regimplify_operands (ctx, stmt, gsi_p); |
9bd46bc9 | 8957 | } |
629b3d75 | 8958 | break; |
9bd46bc9 | 8959 | } |
9bd46bc9 NS |
8960 | } |
8961 | ||
9bd46bc9 | 8962 | static void |
629b3d75 | 8963 | lower_omp (gimple_seq *body, omp_context *ctx) |
9bd46bc9 | 8964 | { |
629b3d75 MJ |
8965 | location_t saved_location = input_location; |
8966 | gimple_stmt_iterator gsi; | |
8967 | for (gsi = gsi_start (*body); !gsi_end_p (gsi); gsi_next (&gsi)) | |
8968 | lower_omp_1 (&gsi, ctx); | |
8969 | /* During gimplification, we haven't folded statments inside offloading | |
8970 | or taskreg regions (gimplify.c:maybe_fold_stmt); do that now. */ | |
8971 | if (target_nesting_level || taskreg_nesting_level) | |
8972 | for (gsi = gsi_start (*body); !gsi_end_p (gsi); gsi_next (&gsi)) | |
8973 | fold_stmt (&gsi); | |
8974 | input_location = saved_location; | |
9bd46bc9 NS |
8975 | } |
8976 | ||
629b3d75 | 8977 | /* Main entry point. */ |
9bd46bc9 | 8978 | |
629b3d75 MJ |
8979 | static unsigned int |
8980 | execute_lower_omp (void) | |
9bd46bc9 | 8981 | { |
629b3d75 MJ |
8982 | gimple_seq body; |
8983 | int i; | |
8984 | omp_context *ctx; | |
9bd46bc9 | 8985 | |
629b3d75 MJ |
8986 | /* This pass always runs, to provide PROP_gimple_lomp. |
8987 | But often, there is nothing to do. */ | |
5e9d6aa4 | 8988 | if (flag_openacc == 0 && flag_openmp == 0 |
629b3d75 MJ |
8989 | && flag_openmp_simd == 0) |
8990 | return 0; | |
9bd46bc9 | 8991 | |
629b3d75 MJ |
8992 | all_contexts = splay_tree_new (splay_tree_compare_pointers, 0, |
8993 | delete_omp_context); | |
9bd46bc9 | 8994 | |
629b3d75 | 8995 | body = gimple_body (current_function_decl); |
9bd46bc9 | 8996 | |
629b3d75 MJ |
8997 | if (hsa_gen_requested_p ()) |
8998 | omp_grid_gridify_all_targets (&body); | |
8999 | ||
9000 | scan_omp (&body, NULL); | |
9001 | gcc_assert (taskreg_nesting_level == 0); | |
9002 | FOR_EACH_VEC_ELT (taskreg_contexts, i, ctx) | |
9003 | finish_taskreg_scan (ctx); | |
9004 | taskreg_contexts.release (); | |
9bd46bc9 | 9005 | |
629b3d75 MJ |
9006 | if (all_contexts->root) |
9007 | { | |
9008 | if (task_shared_vars) | |
9009 | push_gimplify_context (); | |
9010 | lower_omp (&body, NULL); | |
9011 | if (task_shared_vars) | |
9012 | pop_gimplify_context (NULL); | |
9013 | } | |
9014 | ||
9015 | if (all_contexts) | |
9016 | { | |
9017 | splay_tree_delete (all_contexts); | |
9018 | all_contexts = NULL; | |
9bd46bc9 | 9019 | } |
629b3d75 | 9020 | BITMAP_FREE (task_shared_vars); |
6724f8a6 JJ |
9021 | |
9022 | /* If current function is a method, remove artificial dummy VAR_DECL created | |
9023 | for non-static data member privatization, they aren't needed for | |
9024 | debuginfo nor anything else, have been already replaced everywhere in the | |
9025 | IL and cause problems with LTO. */ | |
9026 | if (DECL_ARGUMENTS (current_function_decl) | |
9027 | && DECL_ARTIFICIAL (DECL_ARGUMENTS (current_function_decl)) | |
9028 | && (TREE_CODE (TREE_TYPE (DECL_ARGUMENTS (current_function_decl))) | |
9029 | == POINTER_TYPE)) | |
9030 | remove_member_access_dummy_vars (DECL_INITIAL (current_function_decl)); | |
629b3d75 | 9031 | return 0; |
9bd46bc9 NS |
9032 | } |
9033 | ||
629b3d75 | 9034 | namespace { |
9bd46bc9 | 9035 | |
629b3d75 | 9036 | const pass_data pass_data_lower_omp = |
9bd46bc9 | 9037 | { |
629b3d75 MJ |
9038 | GIMPLE_PASS, /* type */ |
9039 | "omplower", /* name */ | |
fd2b8c8b | 9040 | OPTGROUP_OMP, /* optinfo_flags */ |
629b3d75 MJ |
9041 | TV_NONE, /* tv_id */ |
9042 | PROP_gimple_any, /* properties_required */ | |
9043 | PROP_gimple_lomp | PROP_gimple_lomp_dev, /* properties_provided */ | |
9044 | 0, /* properties_destroyed */ | |
9045 | 0, /* todo_flags_start */ | |
9046 | 0, /* todo_flags_finish */ | |
9047 | }; | |
9bd46bc9 | 9048 | |
629b3d75 MJ |
9049 | class pass_lower_omp : public gimple_opt_pass |
9050 | { | |
9051 | public: | |
9052 | pass_lower_omp (gcc::context *ctxt) | |
9053 | : gimple_opt_pass (pass_data_lower_omp, ctxt) | |
9054 | {} | |
9bd46bc9 | 9055 | |
629b3d75 MJ |
9056 | /* opt_pass methods: */ |
9057 | virtual unsigned int execute (function *) { return execute_lower_omp (); } | |
9bd46bc9 | 9058 | |
629b3d75 | 9059 | }; // class pass_lower_omp |
9bd46bc9 | 9060 | |
629b3d75 | 9061 | } // anon namespace |
9bd46bc9 | 9062 | |
629b3d75 MJ |
9063 | gimple_opt_pass * |
9064 | make_pass_lower_omp (gcc::context *ctxt) | |
9065 | { | |
9066 | return new pass_lower_omp (ctxt); | |
9bd46bc9 | 9067 | } |
629b3d75 MJ |
9068 | \f |
9069 | /* The following is a utility to diagnose structured block violations. | |
9070 | It is not part of the "omplower" pass, as that's invoked too late. It | |
9071 | should be invoked by the respective front ends after gimplification. */ | |
9bd46bc9 | 9072 | |
629b3d75 | 9073 | static splay_tree all_labels; |
9bd46bc9 | 9074 | |
629b3d75 MJ |
9075 | /* Check for mismatched contexts and generate an error if needed. Return |
9076 | true if an error is detected. */ | |
9bd46bc9 | 9077 | |
629b3d75 MJ |
9078 | static bool |
9079 | diagnose_sb_0 (gimple_stmt_iterator *gsi_p, | |
9080 | gimple *branch_ctx, gimple *label_ctx) | |
9081 | { | |
9082 | gcc_checking_assert (!branch_ctx || is_gimple_omp (branch_ctx)); | |
9083 | gcc_checking_assert (!label_ctx || is_gimple_omp (label_ctx)); | |
9bd46bc9 | 9084 | |
629b3d75 MJ |
9085 | if (label_ctx == branch_ctx) |
9086 | return false; | |
9bd46bc9 | 9087 | |
629b3d75 | 9088 | const char* kind = NULL; |
9bd46bc9 | 9089 | |
629b3d75 | 9090 | if (flag_openacc) |
9bd46bc9 | 9091 | { |
629b3d75 MJ |
9092 | if ((branch_ctx && is_gimple_omp_oacc (branch_ctx)) |
9093 | || (label_ctx && is_gimple_omp_oacc (label_ctx))) | |
9bd46bc9 | 9094 | { |
629b3d75 MJ |
9095 | gcc_checking_assert (kind == NULL); |
9096 | kind = "OpenACC"; | |
9bd46bc9 NS |
9097 | } |
9098 | } | |
629b3d75 | 9099 | if (kind == NULL) |
5b37e866 | 9100 | { |
0a734553 | 9101 | gcc_checking_assert (flag_openmp || flag_openmp_simd); |
629b3d75 | 9102 | kind = "OpenMP"; |
5b37e866 | 9103 | } |
9bd46bc9 | 9104 | |
01914336 | 9105 | /* Previously we kept track of the label's entire context in diagnose_sb_[12] |
629b3d75 MJ |
9106 | so we could traverse it and issue a correct "exit" or "enter" error |
9107 | message upon a structured block violation. | |
c5a64cfe | 9108 | |
629b3d75 MJ |
9109 | We built the context by building a list with tree_cons'ing, but there is |
9110 | no easy counterpart in gimple tuples. It seems like far too much work | |
9111 | for issuing exit/enter error messages. If someone really misses the | |
01914336 | 9112 | distinct error message... patches welcome. */ |
c5a64cfe | 9113 | |
629b3d75 MJ |
9114 | #if 0 |
9115 | /* Try to avoid confusing the user by producing and error message | |
9116 | with correct "exit" or "enter" verbiage. We prefer "exit" | |
9117 | unless we can show that LABEL_CTX is nested within BRANCH_CTX. */ | |
9118 | if (branch_ctx == NULL) | |
9119 | exit_p = false; | |
9120 | else | |
5b37e866 | 9121 | { |
629b3d75 MJ |
9122 | while (label_ctx) |
9123 | { | |
9124 | if (TREE_VALUE (label_ctx) == branch_ctx) | |
9125 | { | |
9126 | exit_p = false; | |
9127 | break; | |
9128 | } | |
9129 | label_ctx = TREE_CHAIN (label_ctx); | |
9130 | } | |
5b37e866 NS |
9131 | } |
9132 | ||
629b3d75 MJ |
9133 | if (exit_p) |
9134 | error ("invalid exit from %s structured block", kind); | |
9135 | else | |
9136 | error ("invalid entry to %s structured block", kind); | |
9137 | #endif | |
5b37e866 | 9138 | |
629b3d75 MJ |
9139 | /* If it's obvious we have an invalid entry, be specific about the error. */ |
9140 | if (branch_ctx == NULL) | |
9141 | error ("invalid entry to %s structured block", kind); | |
9142 | else | |
c5a64cfe | 9143 | { |
629b3d75 MJ |
9144 | /* Otherwise, be vague and lazy, but efficient. */ |
9145 | error ("invalid branch to/from %s structured block", kind); | |
c5a64cfe | 9146 | } |
5b37e866 | 9147 | |
629b3d75 MJ |
9148 | gsi_replace (gsi_p, gimple_build_nop (), false); |
9149 | return true; | |
c5a64cfe NS |
9150 | } |
9151 | ||
629b3d75 MJ |
9152 | /* Pass 1: Create a minimal tree of structured blocks, and record |
9153 | where each label is found. */ | |
9bd46bc9 | 9154 | |
629b3d75 MJ |
9155 | static tree |
9156 | diagnose_sb_1 (gimple_stmt_iterator *gsi_p, bool *handled_ops_p, | |
9157 | struct walk_stmt_info *wi) | |
9bd46bc9 | 9158 | { |
629b3d75 MJ |
9159 | gimple *context = (gimple *) wi->info; |
9160 | gimple *inner_context; | |
9161 | gimple *stmt = gsi_stmt (*gsi_p); | |
9bd46bc9 | 9162 | |
629b3d75 | 9163 | *handled_ops_p = true; |
6e91acf8 | 9164 | |
629b3d75 MJ |
9165 | switch (gimple_code (stmt)) |
9166 | { | |
9167 | WALK_SUBSTMTS; | |
6e91acf8 | 9168 | |
629b3d75 MJ |
9169 | case GIMPLE_OMP_PARALLEL: |
9170 | case GIMPLE_OMP_TASK: | |
9171 | case GIMPLE_OMP_SECTIONS: | |
9172 | case GIMPLE_OMP_SINGLE: | |
9173 | case GIMPLE_OMP_SECTION: | |
9174 | case GIMPLE_OMP_MASTER: | |
9175 | case GIMPLE_OMP_ORDERED: | |
9176 | case GIMPLE_OMP_CRITICAL: | |
9177 | case GIMPLE_OMP_TARGET: | |
9178 | case GIMPLE_OMP_TEAMS: | |
9179 | case GIMPLE_OMP_TASKGROUP: | |
9180 | /* The minimal context here is just the current OMP construct. */ | |
9181 | inner_context = stmt; | |
9182 | wi->info = inner_context; | |
9183 | walk_gimple_seq (gimple_omp_body (stmt), diagnose_sb_1, NULL, wi); | |
9184 | wi->info = context; | |
9185 | break; | |
e5014671 | 9186 | |
629b3d75 MJ |
9187 | case GIMPLE_OMP_FOR: |
9188 | inner_context = stmt; | |
9189 | wi->info = inner_context; | |
9190 | /* gimple_omp_for_{index,initial,final} are all DECLs; no need to | |
9191 | walk them. */ | |
9192 | walk_gimple_seq (gimple_omp_for_pre_body (stmt), | |
9193 | diagnose_sb_1, NULL, wi); | |
9194 | walk_gimple_seq (gimple_omp_body (stmt), diagnose_sb_1, NULL, wi); | |
9195 | wi->info = context; | |
9196 | break; | |
e5014671 | 9197 | |
629b3d75 MJ |
9198 | case GIMPLE_LABEL: |
9199 | splay_tree_insert (all_labels, | |
9200 | (splay_tree_key) gimple_label_label ( | |
9201 | as_a <glabel *> (stmt)), | |
9202 | (splay_tree_value) context); | |
9203 | break; | |
e5014671 | 9204 | |
629b3d75 MJ |
9205 | default: |
9206 | break; | |
e5014671 NS |
9207 | } |
9208 | ||
629b3d75 | 9209 | return NULL_TREE; |
e5014671 NS |
9210 | } |
9211 | ||
629b3d75 MJ |
9212 | /* Pass 2: Check each branch and see if its context differs from that of |
9213 | the destination label's context. */ | |
94829f87 | 9214 | |
629b3d75 MJ |
9215 | static tree |
9216 | diagnose_sb_2 (gimple_stmt_iterator *gsi_p, bool *handled_ops_p, | |
9217 | struct walk_stmt_info *wi) | |
94829f87 | 9218 | { |
629b3d75 MJ |
9219 | gimple *context = (gimple *) wi->info; |
9220 | splay_tree_node n; | |
9221 | gimple *stmt = gsi_stmt (*gsi_p); | |
f8393eb0 | 9222 | |
629b3d75 | 9223 | *handled_ops_p = true; |
f8393eb0 | 9224 | |
629b3d75 | 9225 | switch (gimple_code (stmt)) |
9bd46bc9 | 9226 | { |
629b3d75 | 9227 | WALK_SUBSTMTS; |
9bd46bc9 | 9228 | |
629b3d75 MJ |
9229 | case GIMPLE_OMP_PARALLEL: |
9230 | case GIMPLE_OMP_TASK: | |
9231 | case GIMPLE_OMP_SECTIONS: | |
9232 | case GIMPLE_OMP_SINGLE: | |
9233 | case GIMPLE_OMP_SECTION: | |
9234 | case GIMPLE_OMP_MASTER: | |
9235 | case GIMPLE_OMP_ORDERED: | |
9236 | case GIMPLE_OMP_CRITICAL: | |
9237 | case GIMPLE_OMP_TARGET: | |
9238 | case GIMPLE_OMP_TEAMS: | |
9239 | case GIMPLE_OMP_TASKGROUP: | |
9240 | wi->info = stmt; | |
9241 | walk_gimple_seq_mod (gimple_omp_body_ptr (stmt), diagnose_sb_2, NULL, wi); | |
9242 | wi->info = context; | |
9243 | break; | |
e5014671 | 9244 | |
629b3d75 MJ |
9245 | case GIMPLE_OMP_FOR: |
9246 | wi->info = stmt; | |
9247 | /* gimple_omp_for_{index,initial,final} are all DECLs; no need to | |
9248 | walk them. */ | |
9249 | walk_gimple_seq_mod (gimple_omp_for_pre_body_ptr (stmt), | |
9250 | diagnose_sb_2, NULL, wi); | |
9251 | walk_gimple_seq_mod (gimple_omp_body_ptr (stmt), diagnose_sb_2, NULL, wi); | |
9252 | wi->info = context; | |
9253 | break; | |
e5014671 | 9254 | |
629b3d75 MJ |
9255 | case GIMPLE_COND: |
9256 | { | |
9257 | gcond *cond_stmt = as_a <gcond *> (stmt); | |
9258 | tree lab = gimple_cond_true_label (cond_stmt); | |
9259 | if (lab) | |
9bd46bc9 | 9260 | { |
629b3d75 MJ |
9261 | n = splay_tree_lookup (all_labels, |
9262 | (splay_tree_key) lab); | |
9263 | diagnose_sb_0 (gsi_p, context, | |
9264 | n ? (gimple *) n->value : NULL); | |
9bd46bc9 | 9265 | } |
629b3d75 MJ |
9266 | lab = gimple_cond_false_label (cond_stmt); |
9267 | if (lab) | |
9268 | { | |
9269 | n = splay_tree_lookup (all_labels, | |
9270 | (splay_tree_key) lab); | |
9271 | diagnose_sb_0 (gsi_p, context, | |
9272 | n ? (gimple *) n->value : NULL); | |
9273 | } | |
9274 | } | |
9275 | break; | |
9bd46bc9 | 9276 | |
629b3d75 MJ |
9277 | case GIMPLE_GOTO: |
9278 | { | |
9279 | tree lab = gimple_goto_dest (stmt); | |
9280 | if (TREE_CODE (lab) != LABEL_DECL) | |
9281 | break; | |
9282 | ||
9283 | n = splay_tree_lookup (all_labels, (splay_tree_key) lab); | |
9284 | diagnose_sb_0 (gsi_p, context, n ? (gimple *) n->value : NULL); | |
9285 | } | |
9286 | break; | |
9bd46bc9 | 9287 | |
629b3d75 MJ |
9288 | case GIMPLE_SWITCH: |
9289 | { | |
9290 | gswitch *switch_stmt = as_a <gswitch *> (stmt); | |
9291 | unsigned int i; | |
9292 | for (i = 0; i < gimple_switch_num_labels (switch_stmt); ++i) | |
9bd46bc9 | 9293 | { |
629b3d75 MJ |
9294 | tree lab = CASE_LABEL (gimple_switch_label (switch_stmt, i)); |
9295 | n = splay_tree_lookup (all_labels, (splay_tree_key) lab); | |
9296 | if (n && diagnose_sb_0 (gsi_p, context, (gimple *) n->value)) | |
9297 | break; | |
9bd46bc9 | 9298 | } |
9bd46bc9 | 9299 | } |
629b3d75 | 9300 | break; |
9bd46bc9 | 9301 | |
629b3d75 MJ |
9302 | case GIMPLE_RETURN: |
9303 | diagnose_sb_0 (gsi_p, context, NULL); | |
9304 | break; | |
94829f87 | 9305 | |
629b3d75 MJ |
9306 | default: |
9307 | break; | |
94829f87 NS |
9308 | } |
9309 | ||
629b3d75 | 9310 | return NULL_TREE; |
bd751975 NS |
9311 | } |
9312 | ||
629b3d75 MJ |
9313 | static unsigned int |
9314 | diagnose_omp_structured_block_errors (void) | |
94829f87 | 9315 | { |
629b3d75 MJ |
9316 | struct walk_stmt_info wi; |
9317 | gimple_seq body = gimple_body (current_function_decl); | |
346a966e | 9318 | |
629b3d75 | 9319 | all_labels = splay_tree_new (splay_tree_compare_pointers, 0, 0); |
94829f87 | 9320 | |
629b3d75 MJ |
9321 | memset (&wi, 0, sizeof (wi)); |
9322 | walk_gimple_seq (body, diagnose_sb_1, NULL, &wi); | |
94829f87 | 9323 | |
629b3d75 MJ |
9324 | memset (&wi, 0, sizeof (wi)); |
9325 | wi.want_locations = true; | |
9326 | walk_gimple_seq_mod (&body, diagnose_sb_2, NULL, &wi); | |
94829f87 | 9327 | |
629b3d75 | 9328 | gimple_set_body (current_function_decl, body); |
9669b00b | 9329 | |
629b3d75 MJ |
9330 | splay_tree_delete (all_labels); |
9331 | all_labels = NULL; | |
9669b00b | 9332 | |
9669b00b AM |
9333 | return 0; |
9334 | } | |
9335 | ||
9336 | namespace { | |
9337 | ||
629b3d75 | 9338 | const pass_data pass_data_diagnose_omp_blocks = |
9669b00b AM |
9339 | { |
9340 | GIMPLE_PASS, /* type */ | |
629b3d75 | 9341 | "*diagnose_omp_blocks", /* name */ |
fd2b8c8b | 9342 | OPTGROUP_OMP, /* optinfo_flags */ |
9669b00b | 9343 | TV_NONE, /* tv_id */ |
629b3d75 MJ |
9344 | PROP_gimple_any, /* properties_required */ |
9345 | 0, /* properties_provided */ | |
9669b00b AM |
9346 | 0, /* properties_destroyed */ |
9347 | 0, /* todo_flags_start */ | |
629b3d75 | 9348 | 0, /* todo_flags_finish */ |
9669b00b AM |
9349 | }; |
9350 | ||
629b3d75 | 9351 | class pass_diagnose_omp_blocks : public gimple_opt_pass |
9669b00b AM |
9352 | { |
9353 | public: | |
629b3d75 MJ |
9354 | pass_diagnose_omp_blocks (gcc::context *ctxt) |
9355 | : gimple_opt_pass (pass_data_diagnose_omp_blocks, ctxt) | |
9669b00b AM |
9356 | {} |
9357 | ||
9358 | /* opt_pass methods: */ | |
629b3d75 MJ |
9359 | virtual bool gate (function *) |
9360 | { | |
5e9d6aa4 | 9361 | return flag_openacc || flag_openmp || flag_openmp_simd; |
629b3d75 | 9362 | } |
9669b00b AM |
9363 | virtual unsigned int execute (function *) |
9364 | { | |
629b3d75 | 9365 | return diagnose_omp_structured_block_errors (); |
4a38b02b IV |
9366 | } |
9367 | ||
629b3d75 | 9368 | }; // class pass_diagnose_omp_blocks |
4a38b02b IV |
9369 | |
9370 | } // anon namespace | |
9371 | ||
9372 | gimple_opt_pass * | |
629b3d75 | 9373 | make_pass_diagnose_omp_blocks (gcc::context *ctxt) |
4a38b02b | 9374 | { |
629b3d75 | 9375 | return new pass_diagnose_omp_blocks (ctxt); |
4a38b02b | 9376 | } |
629b3d75 | 9377 | \f |
4a38b02b | 9378 | |
953ff289 | 9379 | #include "gt-omp-low.h" |