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ca4c3545 | 1 | /* This file contains routines to construct OpenACC and OpenMP constructs, |
1e8e9920 | 2 | called from parsing in the C and C++ front ends. |
3 | ||
f1717362 | 4 | Copyright (C) 2005-2016 Free Software Foundation, Inc. |
1e8e9920 | 5 | Contributed by Richard Henderson <rth@redhat.com>, |
6 | Diego Novillo <dnovillo@redhat.com>. | |
7 | ||
8 | This file is part of GCC. | |
9 | ||
10 | GCC is free software; you can redistribute it and/or modify it under | |
11 | the terms of the GNU General Public License as published by the Free | |
8c4c00c1 | 12 | Software Foundation; either version 3, or (at your option) any later |
1e8e9920 | 13 | version. |
14 | ||
15 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
16 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
17 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
18 | for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
8c4c00c1 | 21 | along with GCC; see the file COPYING3. If not see |
22 | <http://www.gnu.org/licenses/>. */ | |
1e8e9920 | 23 | |
24 | #include "config.h" | |
25 | #include "system.h" | |
26 | #include "coretypes.h" | |
6e803544 | 27 | #include "options.h" |
1e8e9920 | 28 | #include "c-common.h" |
a8783bee | 29 | #include "gimple-expr.h" |
4cba6f60 | 30 | #include "c-pragma.h" |
4954efd4 | 31 | #include "omp-general.h" |
ca4c3545 | 32 | #include "gomp-constants.h" |
1e8e9920 | 33 | |
34 | ||
ca4c3545 | 35 | /* Complete a #pragma oacc wait construct. LOC is the location of |
36 | the #pragma. */ | |
37 | ||
38 | tree | |
39 | c_finish_oacc_wait (location_t loc, tree parms, tree clauses) | |
40 | { | |
41 | const int nparms = list_length (parms); | |
42 | tree stmt, t; | |
43 | vec<tree, va_gc> *args; | |
44 | ||
45 | vec_alloc (args, nparms + 2); | |
46 | stmt = builtin_decl_explicit (BUILT_IN_GOACC_WAIT); | |
47 | ||
4954efd4 | 48 | if (omp_find_clause (clauses, OMP_CLAUSE_ASYNC)) |
ca4c3545 | 49 | t = OMP_CLAUSE_ASYNC_EXPR (clauses); |
50 | else | |
51 | t = build_int_cst (integer_type_node, GOMP_ASYNC_SYNC); | |
52 | ||
53 | args->quick_push (t); | |
54 | args->quick_push (build_int_cst (integer_type_node, nparms)); | |
55 | ||
56 | for (t = parms; t; t = TREE_CHAIN (t)) | |
57 | { | |
58 | if (TREE_CODE (OMP_CLAUSE_WAIT_EXPR (t)) == INTEGER_CST) | |
59 | args->quick_push (build_int_cst (integer_type_node, | |
60 | TREE_INT_CST_LOW (OMP_CLAUSE_WAIT_EXPR (t)))); | |
61 | else | |
62 | args->quick_push (OMP_CLAUSE_WAIT_EXPR (t)); | |
63 | } | |
64 | ||
65 | stmt = build_call_expr_loc_vec (loc, stmt, args); | |
ca4c3545 | 66 | |
67 | vec_free (args); | |
68 | ||
69 | return stmt; | |
70 | } | |
71 | ||
1e8e9920 | 72 | /* Complete a #pragma omp master construct. STMT is the structured-block |
e60a6f7b | 73 | that follows the pragma. LOC is the l*/ |
1e8e9920 | 74 | |
75 | tree | |
e60a6f7b | 76 | c_finish_omp_master (location_t loc, tree stmt) |
1e8e9920 | 77 | { |
e60a6f7b | 78 | tree t = add_stmt (build1 (OMP_MASTER, void_type_node, stmt)); |
79 | SET_EXPR_LOCATION (t, loc); | |
80 | return t; | |
1e8e9920 | 81 | } |
82 | ||
bc7bff74 | 83 | /* Complete a #pragma omp taskgroup construct. STMT is the structured-block |
84 | that follows the pragma. LOC is the l*/ | |
85 | ||
86 | tree | |
87 | c_finish_omp_taskgroup (location_t loc, tree stmt) | |
88 | { | |
89 | tree t = add_stmt (build1 (OMP_TASKGROUP, void_type_node, stmt)); | |
90 | SET_EXPR_LOCATION (t, loc); | |
91 | return t; | |
92 | } | |
93 | ||
1e8e9920 | 94 | /* Complete a #pragma omp critical construct. STMT is the structured-block |
95 | that follows the pragma, NAME is the identifier in the pragma, or null | |
e60a6f7b | 96 | if it was omitted. LOC is the location of the #pragma. */ |
1e8e9920 | 97 | |
98 | tree | |
43895be5 | 99 | c_finish_omp_critical (location_t loc, tree body, tree name, tree clauses) |
1e8e9920 | 100 | { |
101 | tree stmt = make_node (OMP_CRITICAL); | |
102 | TREE_TYPE (stmt) = void_type_node; | |
103 | OMP_CRITICAL_BODY (stmt) = body; | |
104 | OMP_CRITICAL_NAME (stmt) = name; | |
43895be5 | 105 | OMP_CRITICAL_CLAUSES (stmt) = clauses; |
e60a6f7b | 106 | SET_EXPR_LOCATION (stmt, loc); |
1e8e9920 | 107 | return add_stmt (stmt); |
108 | } | |
109 | ||
110 | /* Complete a #pragma omp ordered construct. STMT is the structured-block | |
e60a6f7b | 111 | that follows the pragma. LOC is the location of the #pragma. */ |
1e8e9920 | 112 | |
113 | tree | |
43895be5 | 114 | c_finish_omp_ordered (location_t loc, tree clauses, tree stmt) |
1e8e9920 | 115 | { |
43895be5 | 116 | tree t = make_node (OMP_ORDERED); |
117 | TREE_TYPE (t) = void_type_node; | |
118 | OMP_ORDERED_BODY (t) = stmt; | |
119 | OMP_ORDERED_CLAUSES (t) = clauses; | |
e60a6f7b | 120 | SET_EXPR_LOCATION (t, loc); |
121 | return add_stmt (t); | |
1e8e9920 | 122 | } |
123 | ||
124 | ||
e60a6f7b | 125 | /* Complete a #pragma omp barrier construct. LOC is the location of |
126 | the #pragma. */ | |
1e8e9920 | 127 | |
128 | void | |
e60a6f7b | 129 | c_finish_omp_barrier (location_t loc) |
1e8e9920 | 130 | { |
131 | tree x; | |
132 | ||
b9a16870 | 133 | x = builtin_decl_explicit (BUILT_IN_GOMP_BARRIER); |
389dd41b | 134 | x = build_call_expr_loc (loc, x, 0); |
1e8e9920 | 135 | add_stmt (x); |
136 | } | |
137 | ||
138 | ||
e60a6f7b | 139 | /* Complete a #pragma omp taskwait construct. LOC is the location of the |
140 | pragma. */ | |
fd6481cf | 141 | |
142 | void | |
e60a6f7b | 143 | c_finish_omp_taskwait (location_t loc) |
fd6481cf | 144 | { |
145 | tree x; | |
146 | ||
b9a16870 | 147 | x = builtin_decl_explicit (BUILT_IN_GOMP_TASKWAIT); |
389dd41b | 148 | x = build_call_expr_loc (loc, x, 0); |
fd6481cf | 149 | add_stmt (x); |
150 | } | |
151 | ||
152 | ||
2169f33b | 153 | /* Complete a #pragma omp taskyield construct. LOC is the location of the |
154 | pragma. */ | |
155 | ||
156 | void | |
157 | c_finish_omp_taskyield (location_t loc) | |
158 | { | |
159 | tree x; | |
160 | ||
b9a16870 | 161 | x = builtin_decl_explicit (BUILT_IN_GOMP_TASKYIELD); |
2169f33b | 162 | x = build_call_expr_loc (loc, x, 0); |
163 | add_stmt (x); | |
164 | } | |
165 | ||
166 | ||
167 | /* Complete a #pragma omp atomic construct. For CODE OMP_ATOMIC | |
168 | the expression to be implemented atomically is LHS opcode= RHS. | |
169 | For OMP_ATOMIC_READ V = LHS, for OMP_ATOMIC_CAPTURE_{NEW,OLD} LHS | |
170 | opcode= RHS with the new or old content of LHS returned. | |
171 | LOC is the location of the atomic statement. The value returned | |
172 | is either error_mark_node (if the construct was erroneous) or an | |
173 | OMP_ATOMIC* node which should be added to the current statement | |
9561765e | 174 | tree with add_stmt. If TEST is set, avoid calling save_expr |
175 | or create_tmp_var*. */ | |
1e8e9920 | 176 | |
d377303f | 177 | tree |
2169f33b | 178 | c_finish_omp_atomic (location_t loc, enum tree_code code, |
179 | enum tree_code opcode, tree lhs, tree rhs, | |
9561765e | 180 | tree v, tree lhs1, tree rhs1, bool swapped, bool seq_cst, |
181 | bool test) | |
1e8e9920 | 182 | { |
1248c663 | 183 | tree x, type, addr, pre = NULL_TREE; |
1e8e9920 | 184 | |
2169f33b | 185 | if (lhs == error_mark_node || rhs == error_mark_node |
186 | || v == error_mark_node || lhs1 == error_mark_node | |
187 | || rhs1 == error_mark_node) | |
d377303f | 188 | return error_mark_node; |
1e8e9920 | 189 | |
190 | /* ??? According to one reading of the OpenMP spec, complex type are | |
191 | supported, but there are no atomic stores for any architecture. | |
192 | But at least icc 9.0 doesn't support complex types here either. | |
193 | And lets not even talk about vector types... */ | |
194 | type = TREE_TYPE (lhs); | |
195 | if (!INTEGRAL_TYPE_P (type) | |
196 | && !POINTER_TYPE_P (type) | |
197 | && !SCALAR_FLOAT_TYPE_P (type)) | |
198 | { | |
e60a6f7b | 199 | error_at (loc, "invalid expression type for %<#pragma omp atomic%>"); |
d377303f | 200 | return error_mark_node; |
1e8e9920 | 201 | } |
0b80c4b2 | 202 | if (TYPE_ATOMIC (type)) |
203 | { | |
204 | error_at (loc, "%<_Atomic%> expression in %<#pragma omp atomic%>"); | |
205 | return error_mark_node; | |
206 | } | |
1e8e9920 | 207 | |
bbf8fbec | 208 | if (opcode == RDIV_EXPR) |
209 | opcode = TRUNC_DIV_EXPR; | |
210 | ||
1e8e9920 | 211 | /* ??? Validate that rhs does not overlap lhs. */ |
212 | ||
213 | /* Take and save the address of the lhs. From then on we'll reference it | |
214 | via indirection. */ | |
b99cc6da | 215 | addr = build_unary_op (loc, ADDR_EXPR, lhs, false); |
1e8e9920 | 216 | if (addr == error_mark_node) |
d377303f | 217 | return error_mark_node; |
9561765e | 218 | if (!test) |
219 | addr = save_expr (addr); | |
220 | if (!test | |
221 | && TREE_CODE (addr) != SAVE_EXPR | |
eaa3785f | 222 | && (TREE_CODE (addr) != ADDR_EXPR |
f48c7f4a | 223 | || !VAR_P (TREE_OPERAND (addr, 0)))) |
eaa3785f | 224 | { |
225 | /* Make sure LHS is simple enough so that goa_lhs_expr_p can recognize | |
226 | it even after unsharing function body. */ | |
f9e245b2 | 227 | tree var = create_tmp_var_raw (TREE_TYPE (addr)); |
bfec3452 | 228 | DECL_CONTEXT (var) = current_function_decl; |
eaa3785f | 229 | addr = build4 (TARGET_EXPR, TREE_TYPE (addr), var, addr, NULL, NULL); |
230 | } | |
f08923b3 | 231 | lhs = build_indirect_ref (loc, addr, RO_NULL); |
1e8e9920 | 232 | |
2169f33b | 233 | if (code == OMP_ATOMIC_READ) |
234 | { | |
235 | x = build1 (OMP_ATOMIC_READ, type, addr); | |
236 | SET_EXPR_LOCATION (x, loc); | |
bc7bff74 | 237 | OMP_ATOMIC_SEQ_CST (x) = seq_cst; |
2169f33b | 238 | return build_modify_expr (loc, v, NULL_TREE, NOP_EXPR, |
239 | loc, x, NULL_TREE); | |
2169f33b | 240 | } |
241 | ||
1e8e9920 | 242 | /* There are lots of warnings, errors, and conversions that need to happen |
243 | in the course of interpreting a statement. Use the normal mechanisms | |
244 | to do this, and then take it apart again. */ | |
bc7bff74 | 245 | if (swapped) |
246 | { | |
bbf8fbec | 247 | rhs = build_binary_op (loc, opcode, rhs, lhs, 1); |
bc7bff74 | 248 | opcode = NOP_EXPR; |
249 | } | |
1248c663 | 250 | bool save = in_late_binary_op; |
251 | in_late_binary_op = true; | |
bc7bff74 | 252 | x = build_modify_expr (loc, lhs, NULL_TREE, opcode, loc, rhs, NULL_TREE); |
1248c663 | 253 | in_late_binary_op = save; |
1e8e9920 | 254 | if (x == error_mark_node) |
d377303f | 255 | return error_mark_node; |
1248c663 | 256 | if (TREE_CODE (x) == COMPOUND_EXPR) |
257 | { | |
258 | pre = TREE_OPERAND (x, 0); | |
259 | gcc_assert (TREE_CODE (pre) == SAVE_EXPR); | |
260 | x = TREE_OPERAND (x, 1); | |
261 | } | |
48e1416a | 262 | gcc_assert (TREE_CODE (x) == MODIFY_EXPR); |
1e8e9920 | 263 | rhs = TREE_OPERAND (x, 1); |
264 | ||
265 | /* Punt the actual generation of atomic operations to common code. */ | |
2169f33b | 266 | if (code == OMP_ATOMIC) |
267 | type = void_type_node; | |
268 | x = build2 (code, type, addr, rhs); | |
e60a6f7b | 269 | SET_EXPR_LOCATION (x, loc); |
bc7bff74 | 270 | OMP_ATOMIC_SEQ_CST (x) = seq_cst; |
2169f33b | 271 | |
272 | /* Generally it is hard to prove lhs1 and lhs are the same memory | |
273 | location, just diagnose different variables. */ | |
274 | if (rhs1 | |
f48c7f4a | 275 | && VAR_P (rhs1) |
276 | && VAR_P (lhs) | |
9561765e | 277 | && rhs1 != lhs |
278 | && !test) | |
2169f33b | 279 | { |
280 | if (code == OMP_ATOMIC) | |
9561765e | 281 | error_at (loc, "%<#pragma omp atomic update%> uses two different " |
282 | "variables for memory"); | |
2169f33b | 283 | else |
9561765e | 284 | error_at (loc, "%<#pragma omp atomic capture%> uses two different " |
285 | "variables for memory"); | |
2169f33b | 286 | return error_mark_node; |
287 | } | |
288 | ||
289 | if (code != OMP_ATOMIC) | |
290 | { | |
291 | /* Generally it is hard to prove lhs1 and lhs are the same memory | |
292 | location, just diagnose different variables. */ | |
f48c7f4a | 293 | if (lhs1 && VAR_P (lhs1) && VAR_P (lhs)) |
2169f33b | 294 | { |
9561765e | 295 | if (lhs1 != lhs && !test) |
2169f33b | 296 | { |
9561765e | 297 | error_at (loc, "%<#pragma omp atomic capture%> uses two " |
298 | "different variables for memory"); | |
2169f33b | 299 | return error_mark_node; |
300 | } | |
301 | } | |
302 | x = build_modify_expr (loc, v, NULL_TREE, NOP_EXPR, | |
303 | loc, x, NULL_TREE); | |
304 | if (rhs1 && rhs1 != lhs) | |
305 | { | |
b99cc6da | 306 | tree rhs1addr = build_unary_op (loc, ADDR_EXPR, rhs1, false); |
2169f33b | 307 | if (rhs1addr == error_mark_node) |
308 | return error_mark_node; | |
309 | x = omit_one_operand_loc (loc, type, x, rhs1addr); | |
310 | } | |
311 | if (lhs1 && lhs1 != lhs) | |
312 | { | |
b99cc6da | 313 | tree lhs1addr = build_unary_op (loc, ADDR_EXPR, lhs1, false); |
2169f33b | 314 | if (lhs1addr == error_mark_node) |
315 | return error_mark_node; | |
316 | if (code == OMP_ATOMIC_CAPTURE_OLD) | |
317 | x = omit_one_operand_loc (loc, type, x, lhs1addr); | |
318 | else | |
319 | { | |
9561765e | 320 | if (!test) |
321 | x = save_expr (x); | |
2169f33b | 322 | x = omit_two_operands_loc (loc, type, x, x, lhs1addr); |
323 | } | |
324 | } | |
325 | } | |
326 | else if (rhs1 && rhs1 != lhs) | |
327 | { | |
b99cc6da | 328 | tree rhs1addr = build_unary_op (loc, ADDR_EXPR, rhs1, false); |
2169f33b | 329 | if (rhs1addr == error_mark_node) |
330 | return error_mark_node; | |
331 | x = omit_one_operand_loc (loc, type, x, rhs1addr); | |
332 | } | |
333 | ||
1248c663 | 334 | if (pre) |
335 | x = omit_one_operand_loc (loc, type, x, pre); | |
e60a6f7b | 336 | return x; |
1e8e9920 | 337 | } |
338 | ||
339 | ||
e60a6f7b | 340 | /* Complete a #pragma omp flush construct. We don't do anything with |
341 | the variable list that the syntax allows. LOC is the location of | |
342 | the #pragma. */ | |
1e8e9920 | 343 | |
344 | void | |
e60a6f7b | 345 | c_finish_omp_flush (location_t loc) |
1e8e9920 | 346 | { |
347 | tree x; | |
348 | ||
b9a16870 | 349 | x = builtin_decl_explicit (BUILT_IN_SYNC_SYNCHRONIZE); |
389dd41b | 350 | x = build_call_expr_loc (loc, x, 0); |
1e8e9920 | 351 | add_stmt (x); |
352 | } | |
353 | ||
354 | ||
ca4c3545 | 355 | /* Check and canonicalize OMP_FOR increment expression. |
1e8e9920 | 356 | Helper function for c_finish_omp_for. */ |
357 | ||
358 | static tree | |
389dd41b | 359 | check_omp_for_incr_expr (location_t loc, tree exp, tree decl) |
1e8e9920 | 360 | { |
361 | tree t; | |
362 | ||
363 | if (!INTEGRAL_TYPE_P (TREE_TYPE (exp)) | |
364 | || TYPE_PRECISION (TREE_TYPE (exp)) < TYPE_PRECISION (TREE_TYPE (decl))) | |
365 | return error_mark_node; | |
366 | ||
367 | if (exp == decl) | |
368 | return build_int_cst (TREE_TYPE (exp), 0); | |
369 | ||
370 | switch (TREE_CODE (exp)) | |
371 | { | |
72dd6141 | 372 | CASE_CONVERT: |
389dd41b | 373 | t = check_omp_for_incr_expr (loc, TREE_OPERAND (exp, 0), decl); |
1e8e9920 | 374 | if (t != error_mark_node) |
389dd41b | 375 | return fold_convert_loc (loc, TREE_TYPE (exp), t); |
1e8e9920 | 376 | break; |
377 | case MINUS_EXPR: | |
389dd41b | 378 | t = check_omp_for_incr_expr (loc, TREE_OPERAND (exp, 0), decl); |
1e8e9920 | 379 | if (t != error_mark_node) |
389dd41b | 380 | return fold_build2_loc (loc, MINUS_EXPR, |
381 | TREE_TYPE (exp), t, TREE_OPERAND (exp, 1)); | |
1e8e9920 | 382 | break; |
383 | case PLUS_EXPR: | |
389dd41b | 384 | t = check_omp_for_incr_expr (loc, TREE_OPERAND (exp, 0), decl); |
1e8e9920 | 385 | if (t != error_mark_node) |
389dd41b | 386 | return fold_build2_loc (loc, PLUS_EXPR, |
387 | TREE_TYPE (exp), t, TREE_OPERAND (exp, 1)); | |
388 | t = check_omp_for_incr_expr (loc, TREE_OPERAND (exp, 1), decl); | |
1e8e9920 | 389 | if (t != error_mark_node) |
389dd41b | 390 | return fold_build2_loc (loc, PLUS_EXPR, |
391 | TREE_TYPE (exp), TREE_OPERAND (exp, 0), t); | |
1e8e9920 | 392 | break; |
3115bda0 | 393 | case COMPOUND_EXPR: |
394 | { | |
395 | /* cp_build_modify_expr forces preevaluation of the RHS to make | |
396 | sure that it is evaluated before the lvalue-rvalue conversion | |
397 | is applied to the LHS. Reconstruct the original expression. */ | |
398 | tree op0 = TREE_OPERAND (exp, 0); | |
399 | if (TREE_CODE (op0) == TARGET_EXPR | |
400 | && !VOID_TYPE_P (TREE_TYPE (op0))) | |
401 | { | |
402 | tree op1 = TREE_OPERAND (exp, 1); | |
403 | tree temp = TARGET_EXPR_SLOT (op0); | |
72f8014e | 404 | if (BINARY_CLASS_P (op1) |
3115bda0 | 405 | && TREE_OPERAND (op1, 1) == temp) |
406 | { | |
407 | op1 = copy_node (op1); | |
408 | TREE_OPERAND (op1, 1) = TARGET_EXPR_INITIAL (op0); | |
409 | return check_omp_for_incr_expr (loc, op1, decl); | |
410 | } | |
411 | } | |
412 | break; | |
413 | } | |
1e8e9920 | 414 | default: |
415 | break; | |
416 | } | |
417 | ||
418 | return error_mark_node; | |
419 | } | |
420 | ||
f2697631 | 421 | /* If the OMP_FOR increment expression in INCR is of pointer type, |
422 | canonicalize it into an expression handled by gimplify_omp_for() | |
423 | and return it. DECL is the iteration variable. */ | |
424 | ||
425 | static tree | |
426 | c_omp_for_incr_canonicalize_ptr (location_t loc, tree decl, tree incr) | |
427 | { | |
428 | if (POINTER_TYPE_P (TREE_TYPE (decl)) | |
429 | && TREE_OPERAND (incr, 1)) | |
430 | { | |
431 | tree t = fold_convert_loc (loc, | |
432 | sizetype, TREE_OPERAND (incr, 1)); | |
433 | ||
434 | if (TREE_CODE (incr) == POSTDECREMENT_EXPR | |
435 | || TREE_CODE (incr) == PREDECREMENT_EXPR) | |
436 | t = fold_build1_loc (loc, NEGATE_EXPR, sizetype, t); | |
437 | t = fold_build_pointer_plus (decl, t); | |
438 | incr = build2 (MODIFY_EXPR, void_type_node, decl, t); | |
439 | } | |
440 | return incr; | |
441 | } | |
442 | ||
ca4c3545 | 443 | /* Validate and generate OMP_FOR. |
fd6481cf | 444 | DECLV is a vector of iteration variables, for each collapsed loop. |
43895be5 | 445 | |
446 | ORIG_DECLV, if non-NULL, is a vector with the original iteration | |
447 | variables (prior to any transformations, by say, C++ iterators). | |
448 | ||
fd6481cf | 449 | INITV, CONDV and INCRV are vectors containing initialization |
450 | expressions, controlling predicates and increment expressions. | |
451 | BODY is the body of the loop and PRE_BODY statements that go before | |
452 | the loop. */ | |
1e8e9920 | 453 | |
454 | tree | |
bc7bff74 | 455 | c_finish_omp_for (location_t locus, enum tree_code code, tree declv, |
43895be5 | 456 | tree orig_declv, tree initv, tree condv, tree incrv, |
457 | tree body, tree pre_body) | |
1e8e9920 | 458 | { |
fd6481cf | 459 | location_t elocus; |
1e8e9920 | 460 | bool fail = false; |
fd6481cf | 461 | int i; |
1e8e9920 | 462 | |
40750995 | 463 | if ((code == CILK_SIMD || code == CILK_FOR) |
f2697631 | 464 | && !c_check_cilk_loop (locus, TREE_VEC_ELT (declv, 0))) |
465 | fail = true; | |
466 | ||
fd6481cf | 467 | gcc_assert (TREE_VEC_LENGTH (declv) == TREE_VEC_LENGTH (initv)); |
468 | gcc_assert (TREE_VEC_LENGTH (declv) == TREE_VEC_LENGTH (condv)); | |
469 | gcc_assert (TREE_VEC_LENGTH (declv) == TREE_VEC_LENGTH (incrv)); | |
470 | for (i = 0; i < TREE_VEC_LENGTH (declv); i++) | |
1e8e9920 | 471 | { |
fd6481cf | 472 | tree decl = TREE_VEC_ELT (declv, i); |
473 | tree init = TREE_VEC_ELT (initv, i); | |
474 | tree cond = TREE_VEC_ELT (condv, i); | |
475 | tree incr = TREE_VEC_ELT (incrv, i); | |
476 | ||
477 | elocus = locus; | |
478 | if (EXPR_HAS_LOCATION (init)) | |
479 | elocus = EXPR_LOCATION (init); | |
480 | ||
481 | /* Validate the iteration variable. */ | |
482 | if (!INTEGRAL_TYPE_P (TREE_TYPE (decl)) | |
483 | && TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE) | |
484 | { | |
b6889cb0 | 485 | error_at (elocus, "invalid type for iteration variable %qE", decl); |
fd6481cf | 486 | fail = true; |
487 | } | |
0b80c4b2 | 488 | else if (TYPE_ATOMIC (TREE_TYPE (decl))) |
489 | { | |
490 | error_at (elocus, "%<_Atomic%> iteration variable %qE", decl); | |
491 | fail = true; | |
492 | /* _Atomic iterator confuses stuff too much, so we risk ICE | |
493 | trying to diagnose it further. */ | |
494 | continue; | |
495 | } | |
1e8e9920 | 496 | |
fd6481cf | 497 | /* In the case of "for (int i = 0...)", init will be a decl. It should |
498 | have a DECL_INITIAL that we can turn into an assignment. */ | |
499 | if (init == decl) | |
500 | { | |
501 | elocus = DECL_SOURCE_LOCATION (decl); | |
502 | ||
503 | init = DECL_INITIAL (decl); | |
504 | if (init == NULL) | |
505 | { | |
b6889cb0 | 506 | error_at (elocus, "%qE is not initialized", decl); |
fd6481cf | 507 | init = integer_zero_node; |
508 | fail = true; | |
509 | } | |
43895be5 | 510 | DECL_INITIAL (decl) = NULL_TREE; |
1e8e9920 | 511 | |
48e1416a | 512 | init = build_modify_expr (elocus, decl, NULL_TREE, NOP_EXPR, |
e60a6f7b | 513 | /* FIXME diagnostics: This should |
514 | be the location of the INIT. */ | |
515 | elocus, | |
516 | init, | |
8458f4ca | 517 | NULL_TREE); |
fd6481cf | 518 | } |
f2697631 | 519 | if (init != error_mark_node) |
520 | { | |
521 | gcc_assert (TREE_CODE (init) == MODIFY_EXPR); | |
522 | gcc_assert (TREE_OPERAND (init, 0) == decl); | |
523 | } | |
fd6481cf | 524 | |
525 | if (cond == NULL_TREE) | |
1e8e9920 | 526 | { |
b6889cb0 | 527 | error_at (elocus, "missing controlling predicate"); |
1e8e9920 | 528 | fail = true; |
529 | } | |
fd6481cf | 530 | else |
531 | { | |
532 | bool cond_ok = false; | |
1e8e9920 | 533 | |
fd6481cf | 534 | if (EXPR_HAS_LOCATION (cond)) |
535 | elocus = EXPR_LOCATION (cond); | |
1e8e9920 | 536 | |
fd6481cf | 537 | if (TREE_CODE (cond) == LT_EXPR |
538 | || TREE_CODE (cond) == LE_EXPR | |
539 | || TREE_CODE (cond) == GT_EXPR | |
e060ba36 | 540 | || TREE_CODE (cond) == GE_EXPR |
abc3b078 | 541 | || TREE_CODE (cond) == NE_EXPR |
542 | || TREE_CODE (cond) == EQ_EXPR) | |
fd6481cf | 543 | { |
544 | tree op0 = TREE_OPERAND (cond, 0); | |
545 | tree op1 = TREE_OPERAND (cond, 1); | |
1e8e9920 | 546 | |
fd6481cf | 547 | /* 2.5.1. The comparison in the condition is computed in |
548 | the type of DECL, otherwise the behavior is undefined. | |
1e8e9920 | 549 | |
fd6481cf | 550 | For example: |
551 | long n; int i; | |
552 | i < n; | |
1e8e9920 | 553 | |
fd6481cf | 554 | according to ISO will be evaluated as: |
555 | (long)i < n; | |
1e8e9920 | 556 | |
fd6481cf | 557 | We want to force: |
558 | i < (int)n; */ | |
559 | if (TREE_CODE (op0) == NOP_EXPR | |
560 | && decl == TREE_OPERAND (op0, 0)) | |
561 | { | |
562 | TREE_OPERAND (cond, 0) = TREE_OPERAND (op0, 0); | |
563 | TREE_OPERAND (cond, 1) | |
389dd41b | 564 | = fold_build1_loc (elocus, NOP_EXPR, TREE_TYPE (decl), |
fd6481cf | 565 | TREE_OPERAND (cond, 1)); |
566 | } | |
567 | else if (TREE_CODE (op1) == NOP_EXPR | |
568 | && decl == TREE_OPERAND (op1, 0)) | |
569 | { | |
570 | TREE_OPERAND (cond, 1) = TREE_OPERAND (op1, 0); | |
571 | TREE_OPERAND (cond, 0) | |
389dd41b | 572 | = fold_build1_loc (elocus, NOP_EXPR, TREE_TYPE (decl), |
fd6481cf | 573 | TREE_OPERAND (cond, 0)); |
574 | } | |
1e8e9920 | 575 | |
fd6481cf | 576 | if (decl == TREE_OPERAND (cond, 0)) |
577 | cond_ok = true; | |
578 | else if (decl == TREE_OPERAND (cond, 1)) | |
579 | { | |
580 | TREE_SET_CODE (cond, | |
581 | swap_tree_comparison (TREE_CODE (cond))); | |
582 | TREE_OPERAND (cond, 1) = TREE_OPERAND (cond, 0); | |
583 | TREE_OPERAND (cond, 0) = decl; | |
584 | cond_ok = true; | |
585 | } | |
e060ba36 | 586 | |
abc3b078 | 587 | if (TREE_CODE (cond) == NE_EXPR |
588 | || TREE_CODE (cond) == EQ_EXPR) | |
e060ba36 | 589 | { |
590 | if (!INTEGRAL_TYPE_P (TREE_TYPE (decl))) | |
40750995 | 591 | { |
592 | if (code != CILK_SIMD && code != CILK_FOR) | |
593 | cond_ok = false; | |
594 | } | |
e060ba36 | 595 | else if (operand_equal_p (TREE_OPERAND (cond, 1), |
596 | TYPE_MIN_VALUE (TREE_TYPE (decl)), | |
597 | 0)) | |
abc3b078 | 598 | TREE_SET_CODE (cond, TREE_CODE (cond) == NE_EXPR |
599 | ? GT_EXPR : LE_EXPR); | |
e060ba36 | 600 | else if (operand_equal_p (TREE_OPERAND (cond, 1), |
601 | TYPE_MAX_VALUE (TREE_TYPE (decl)), | |
602 | 0)) | |
abc3b078 | 603 | TREE_SET_CODE (cond, TREE_CODE (cond) == NE_EXPR |
604 | ? LT_EXPR : GE_EXPR); | |
40750995 | 605 | else if (code != CILK_SIMD && code != CILK_FOR) |
e060ba36 | 606 | cond_ok = false; |
607 | } | |
1e8e9920 | 608 | } |
609 | ||
fd6481cf | 610 | if (!cond_ok) |
1e8e9920 | 611 | { |
b6889cb0 | 612 | error_at (elocus, "invalid controlling predicate"); |
fd6481cf | 613 | fail = true; |
1e8e9920 | 614 | } |
615 | } | |
616 | ||
fd6481cf | 617 | if (incr == NULL_TREE) |
1e8e9920 | 618 | { |
b6889cb0 | 619 | error_at (elocus, "missing increment expression"); |
1e8e9920 | 620 | fail = true; |
621 | } | |
fd6481cf | 622 | else |
1e8e9920 | 623 | { |
fd6481cf | 624 | bool incr_ok = false; |
1e8e9920 | 625 | |
fd6481cf | 626 | if (EXPR_HAS_LOCATION (incr)) |
627 | elocus = EXPR_LOCATION (incr); | |
628 | ||
629 | /* Check all the valid increment expressions: v++, v--, ++v, --v, | |
630 | v = v + incr, v = incr + v and v = v - incr. */ | |
631 | switch (TREE_CODE (incr)) | |
1e8e9920 | 632 | { |
fd6481cf | 633 | case POSTINCREMENT_EXPR: |
634 | case PREINCREMENT_EXPR: | |
635 | case POSTDECREMENT_EXPR: | |
636 | case PREDECREMENT_EXPR: | |
637 | if (TREE_OPERAND (incr, 0) != decl) | |
638 | break; | |
639 | ||
640 | incr_ok = true; | |
f2697631 | 641 | incr = c_omp_for_incr_canonicalize_ptr (elocus, decl, incr); |
fd6481cf | 642 | break; |
643 | ||
1248c663 | 644 | case COMPOUND_EXPR: |
645 | if (TREE_CODE (TREE_OPERAND (incr, 0)) != SAVE_EXPR | |
646 | || TREE_CODE (TREE_OPERAND (incr, 1)) != MODIFY_EXPR) | |
647 | break; | |
648 | incr = TREE_OPERAND (incr, 1); | |
649 | /* FALLTHRU */ | |
fd6481cf | 650 | case MODIFY_EXPR: |
651 | if (TREE_OPERAND (incr, 0) != decl) | |
652 | break; | |
653 | if (TREE_OPERAND (incr, 1) == decl) | |
654 | break; | |
655 | if (TREE_CODE (TREE_OPERAND (incr, 1)) == PLUS_EXPR | |
656 | && (TREE_OPERAND (TREE_OPERAND (incr, 1), 0) == decl | |
657 | || TREE_OPERAND (TREE_OPERAND (incr, 1), 1) == decl)) | |
658 | incr_ok = true; | |
659 | else if ((TREE_CODE (TREE_OPERAND (incr, 1)) == MINUS_EXPR | |
660 | || (TREE_CODE (TREE_OPERAND (incr, 1)) | |
661 | == POINTER_PLUS_EXPR)) | |
662 | && TREE_OPERAND (TREE_OPERAND (incr, 1), 0) == decl) | |
663 | incr_ok = true; | |
664 | else | |
665 | { | |
389dd41b | 666 | tree t = check_omp_for_incr_expr (elocus, |
667 | TREE_OPERAND (incr, 1), | |
fd6481cf | 668 | decl); |
669 | if (t != error_mark_node) | |
670 | { | |
671 | incr_ok = true; | |
672 | t = build2 (PLUS_EXPR, TREE_TYPE (decl), decl, t); | |
673 | incr = build2 (MODIFY_EXPR, void_type_node, decl, t); | |
674 | } | |
675 | } | |
676 | break; | |
1e8e9920 | 677 | |
fd6481cf | 678 | default: |
679 | break; | |
680 | } | |
681 | if (!incr_ok) | |
682 | { | |
b6889cb0 | 683 | error_at (elocus, "invalid increment expression"); |
fd6481cf | 684 | fail = true; |
685 | } | |
1e8e9920 | 686 | } |
fd6481cf | 687 | |
688 | TREE_VEC_ELT (initv, i) = init; | |
689 | TREE_VEC_ELT (incrv, i) = incr; | |
1e8e9920 | 690 | } |
691 | ||
692 | if (fail) | |
693 | return NULL; | |
694 | else | |
695 | { | |
bc7bff74 | 696 | tree t = make_node (code); |
1e8e9920 | 697 | |
698 | TREE_TYPE (t) = void_type_node; | |
fd6481cf | 699 | OMP_FOR_INIT (t) = initv; |
700 | OMP_FOR_COND (t) = condv; | |
701 | OMP_FOR_INCR (t) = incrv; | |
1e8e9920 | 702 | OMP_FOR_BODY (t) = body; |
703 | OMP_FOR_PRE_BODY (t) = pre_body; | |
9561765e | 704 | OMP_FOR_ORIG_DECLS (t) = orig_declv; |
1e8e9920 | 705 | |
706 | SET_EXPR_LOCATION (t, locus); | |
9561765e | 707 | return t; |
1e8e9920 | 708 | } |
709 | } | |
710 | ||
9561765e | 711 | /* Type for passing data in between c_omp_check_loop_iv and |
712 | c_omp_check_loop_iv_r. */ | |
713 | ||
714 | struct c_omp_check_loop_iv_data | |
715 | { | |
716 | tree declv; | |
717 | bool fail; | |
718 | location_t stmt_loc; | |
719 | location_t expr_loc; | |
720 | int kind; | |
721 | walk_tree_lh lh; | |
722 | hash_set<tree> *ppset; | |
723 | }; | |
724 | ||
725 | /* Helper function called via walk_tree, to diagnose uses | |
726 | of associated loop IVs inside of lb, b and incr expressions | |
727 | of OpenMP loops. */ | |
728 | ||
729 | static tree | |
730 | c_omp_check_loop_iv_r (tree *tp, int *walk_subtrees, void *data) | |
731 | { | |
732 | struct c_omp_check_loop_iv_data *d | |
733 | = (struct c_omp_check_loop_iv_data *) data; | |
734 | if (DECL_P (*tp)) | |
735 | { | |
736 | int i; | |
737 | for (i = 0; i < TREE_VEC_LENGTH (d->declv); i++) | |
738 | if (*tp == TREE_VEC_ELT (d->declv, i)) | |
739 | { | |
740 | location_t loc = d->expr_loc; | |
741 | if (loc == UNKNOWN_LOCATION) | |
742 | loc = d->stmt_loc; | |
743 | switch (d->kind) | |
744 | { | |
745 | case 0: | |
746 | error_at (loc, "initializer expression refers to " | |
747 | "iteration variable %qD", *tp); | |
748 | break; | |
749 | case 1: | |
750 | error_at (loc, "condition expression refers to " | |
751 | "iteration variable %qD", *tp); | |
752 | break; | |
753 | case 2: | |
754 | error_at (loc, "increment expression refers to " | |
755 | "iteration variable %qD", *tp); | |
756 | break; | |
757 | } | |
758 | d->fail = true; | |
759 | } | |
760 | } | |
761 | /* Don't walk dtors added by C++ wrap_cleanups_r. */ | |
762 | else if (TREE_CODE (*tp) == TRY_CATCH_EXPR | |
763 | && TRY_CATCH_IS_CLEANUP (*tp)) | |
764 | { | |
765 | *walk_subtrees = 0; | |
766 | return walk_tree_1 (&TREE_OPERAND (*tp, 0), c_omp_check_loop_iv_r, data, | |
767 | d->ppset, d->lh); | |
768 | } | |
769 | ||
770 | return NULL_TREE; | |
771 | } | |
772 | ||
773 | /* Diagnose invalid references to loop iterators in lb, b and incr | |
774 | expressions. */ | |
775 | ||
776 | bool | |
777 | c_omp_check_loop_iv (tree stmt, tree declv, walk_tree_lh lh) | |
778 | { | |
779 | hash_set<tree> pset; | |
780 | struct c_omp_check_loop_iv_data data; | |
781 | int i; | |
782 | ||
783 | data.declv = declv; | |
784 | data.fail = false; | |
785 | data.stmt_loc = EXPR_LOCATION (stmt); | |
786 | data.lh = lh; | |
787 | data.ppset = &pset; | |
788 | for (i = 0; i < TREE_VEC_LENGTH (OMP_FOR_INIT (stmt)); i++) | |
789 | { | |
790 | tree init = TREE_VEC_ELT (OMP_FOR_INIT (stmt), i); | |
791 | gcc_assert (TREE_CODE (init) == MODIFY_EXPR); | |
792 | tree decl = TREE_OPERAND (init, 0); | |
793 | tree cond = TREE_VEC_ELT (OMP_FOR_COND (stmt), i); | |
794 | gcc_assert (COMPARISON_CLASS_P (cond)); | |
795 | gcc_assert (TREE_OPERAND (cond, 0) == decl); | |
796 | tree incr = TREE_VEC_ELT (OMP_FOR_INCR (stmt), i); | |
797 | data.expr_loc = EXPR_LOCATION (TREE_OPERAND (init, 1)); | |
798 | data.kind = 0; | |
799 | walk_tree_1 (&TREE_OPERAND (init, 1), | |
800 | c_omp_check_loop_iv_r, &data, &pset, lh); | |
801 | /* Don't warn for C++ random access iterators here, the | |
802 | expression then involves the subtraction and always refers | |
803 | to the original value. The C++ FE needs to warn on those | |
804 | earlier. */ | |
805 | if (decl == TREE_VEC_ELT (declv, i)) | |
806 | { | |
807 | data.expr_loc = EXPR_LOCATION (cond); | |
808 | data.kind = 1; | |
809 | walk_tree_1 (&TREE_OPERAND (cond, 1), | |
810 | c_omp_check_loop_iv_r, &data, &pset, lh); | |
811 | } | |
812 | if (TREE_CODE (incr) == MODIFY_EXPR) | |
813 | { | |
814 | gcc_assert (TREE_OPERAND (incr, 0) == decl); | |
815 | incr = TREE_OPERAND (incr, 1); | |
816 | data.kind = 2; | |
817 | if (TREE_CODE (incr) == PLUS_EXPR | |
818 | && TREE_OPERAND (incr, 1) == decl) | |
819 | { | |
820 | data.expr_loc = EXPR_LOCATION (TREE_OPERAND (incr, 0)); | |
821 | walk_tree_1 (&TREE_OPERAND (incr, 0), | |
822 | c_omp_check_loop_iv_r, &data, &pset, lh); | |
823 | } | |
824 | else | |
825 | { | |
826 | data.expr_loc = EXPR_LOCATION (TREE_OPERAND (incr, 1)); | |
827 | walk_tree_1 (&TREE_OPERAND (incr, 1), | |
828 | c_omp_check_loop_iv_r, &data, &pset, lh); | |
829 | } | |
830 | } | |
831 | } | |
832 | return !data.fail; | |
833 | } | |
834 | ||
835 | /* Similar, but allows to check the init or cond expressions individually. */ | |
836 | ||
837 | bool | |
838 | c_omp_check_loop_iv_exprs (location_t stmt_loc, tree declv, tree decl, | |
839 | tree init, tree cond, walk_tree_lh lh) | |
840 | { | |
841 | hash_set<tree> pset; | |
842 | struct c_omp_check_loop_iv_data data; | |
843 | ||
844 | data.declv = declv; | |
845 | data.fail = false; | |
846 | data.stmt_loc = stmt_loc; | |
847 | data.lh = lh; | |
848 | data.ppset = &pset; | |
849 | if (init) | |
850 | { | |
851 | data.expr_loc = EXPR_LOCATION (init); | |
852 | data.kind = 0; | |
853 | walk_tree_1 (&init, | |
854 | c_omp_check_loop_iv_r, &data, &pset, lh); | |
855 | } | |
856 | if (cond) | |
857 | { | |
858 | gcc_assert (COMPARISON_CLASS_P (cond)); | |
859 | data.expr_loc = EXPR_LOCATION (init); | |
860 | data.kind = 1; | |
861 | if (TREE_OPERAND (cond, 0) == decl) | |
862 | walk_tree_1 (&TREE_OPERAND (cond, 1), | |
863 | c_omp_check_loop_iv_r, &data, &pset, lh); | |
864 | else | |
865 | walk_tree_1 (&TREE_OPERAND (cond, 0), | |
866 | c_omp_check_loop_iv_r, &data, &pset, lh); | |
867 | } | |
868 | return !data.fail; | |
869 | } | |
870 | ||
2c4c8725 | 871 | /* This function splits clauses for OpenACC combined loop |
872 | constructs. OpenACC combined loop constructs are: | |
873 | #pragma acc kernels loop | |
9561765e | 874 | #pragma acc parallel loop */ |
2c4c8725 | 875 | |
876 | tree | |
4d0a8bac | 877 | c_oacc_split_loop_clauses (tree clauses, tree *not_loop_clauses, |
878 | bool is_parallel) | |
2c4c8725 | 879 | { |
4d0a8bac | 880 | tree next, loop_clauses, nc; |
2c4c8725 | 881 | |
882 | loop_clauses = *not_loop_clauses = NULL_TREE; | |
883 | for (; clauses ; clauses = next) | |
884 | { | |
885 | next = OMP_CLAUSE_CHAIN (clauses); | |
886 | ||
887 | switch (OMP_CLAUSE_CODE (clauses)) | |
888 | { | |
ef014f95 | 889 | /* Loop clauses. */ |
2c4c8725 | 890 | case OMP_CLAUSE_COLLAPSE: |
ef014f95 | 891 | case OMP_CLAUSE_TILE: |
892 | case OMP_CLAUSE_GANG: | |
893 | case OMP_CLAUSE_WORKER: | |
894 | case OMP_CLAUSE_VECTOR: | |
895 | case OMP_CLAUSE_AUTO: | |
896 | case OMP_CLAUSE_SEQ: | |
897 | case OMP_CLAUSE_INDEPENDENT: | |
898 | case OMP_CLAUSE_PRIVATE: | |
4d0a8bac | 899 | OMP_CLAUSE_CHAIN (clauses) = loop_clauses; |
900 | loop_clauses = clauses; | |
901 | break; | |
902 | ||
903 | /* Reductions must be duplicated on both constructs. */ | |
f672c103 | 904 | case OMP_CLAUSE_REDUCTION: |
4d0a8bac | 905 | if (is_parallel) |
906 | { | |
907 | nc = build_omp_clause (OMP_CLAUSE_LOCATION (clauses), | |
908 | OMP_CLAUSE_REDUCTION); | |
909 | OMP_CLAUSE_DECL (nc) = OMP_CLAUSE_DECL (clauses); | |
910 | OMP_CLAUSE_REDUCTION_CODE (nc) | |
911 | = OMP_CLAUSE_REDUCTION_CODE (clauses); | |
912 | OMP_CLAUSE_CHAIN (nc) = *not_loop_clauses; | |
913 | *not_loop_clauses = nc; | |
914 | } | |
915 | ||
2c4c8725 | 916 | OMP_CLAUSE_CHAIN (clauses) = loop_clauses; |
917 | loop_clauses = clauses; | |
918 | break; | |
919 | ||
ef014f95 | 920 | /* Parallel/kernels clauses. */ |
2c4c8725 | 921 | default: |
922 | OMP_CLAUSE_CHAIN (clauses) = *not_loop_clauses; | |
923 | *not_loop_clauses = clauses; | |
924 | break; | |
925 | } | |
926 | } | |
927 | ||
928 | return loop_clauses; | |
929 | } | |
930 | ||
931 | /* This function attempts to split or duplicate clauses for OpenMP | |
932 | combined/composite constructs. Right now there are 21 different | |
bc7bff74 | 933 | constructs. CODE is the innermost construct in the combined construct, |
934 | and MASK allows to determine which constructs are combined together, | |
935 | as every construct has at least one clause that no other construct | |
936 | has (except for OMP_SECTIONS, but that can be only combined with parallel). | |
2c4c8725 | 937 | OpenMP combined/composite constructs are: |
bc7bff74 | 938 | #pragma omp distribute parallel for |
939 | #pragma omp distribute parallel for simd | |
43895be5 | 940 | #pragma omp distribute simd |
941 | #pragma omp for simd | |
942 | #pragma omp parallel for | |
943 | #pragma omp parallel for simd | |
944 | #pragma omp parallel sections | |
945 | #pragma omp target parallel | |
946 | #pragma omp target parallel for | |
947 | #pragma omp target parallel for simd | |
bc7bff74 | 948 | #pragma omp target teams |
949 | #pragma omp target teams distribute | |
950 | #pragma omp target teams distribute parallel for | |
43895be5 | 951 | #pragma omp target teams distribute parallel for simd |
952 | #pragma omp target teams distribute simd | |
953 | #pragma omp target simd | |
954 | #pragma omp taskloop simd | |
955 | #pragma omp teams distribute | |
956 | #pragma omp teams distribute parallel for | |
957 | #pragma omp teams distribute parallel for simd | |
958 | #pragma omp teams distribute simd */ | |
1e8e9920 | 959 | |
960 | void | |
bc7bff74 | 961 | c_omp_split_clauses (location_t loc, enum tree_code code, |
962 | omp_clause_mask mask, tree clauses, tree *cclauses) | |
1e8e9920 | 963 | { |
bc7bff74 | 964 | tree next, c; |
965 | enum c_omp_clause_split s; | |
966 | int i; | |
1e8e9920 | 967 | |
bc7bff74 | 968 | for (i = 0; i < C_OMP_CLAUSE_SPLIT_COUNT; i++) |
969 | cclauses[i] = NULL; | |
970 | /* Add implicit nowait clause on | |
971 | #pragma omp parallel {for,for simd,sections}. */ | |
d62c713e | 972 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NUM_THREADS)) != 0) |
bc7bff74 | 973 | switch (code) |
974 | { | |
975 | case OMP_FOR: | |
976 | case OMP_SIMD: | |
977 | cclauses[C_OMP_CLAUSE_SPLIT_FOR] | |
978 | = build_omp_clause (loc, OMP_CLAUSE_NOWAIT); | |
979 | break; | |
980 | case OMP_SECTIONS: | |
981 | cclauses[C_OMP_CLAUSE_SPLIT_SECTIONS] | |
982 | = build_omp_clause (loc, OMP_CLAUSE_NOWAIT); | |
983 | break; | |
984 | default: | |
985 | break; | |
986 | } | |
1e8e9920 | 987 | |
988 | for (; clauses ; clauses = next) | |
989 | { | |
990 | next = OMP_CLAUSE_CHAIN (clauses); | |
991 | ||
55d6e7cd | 992 | switch (OMP_CLAUSE_CODE (clauses)) |
1e8e9920 | 993 | { |
bc7bff74 | 994 | /* First the clauses that are unique to some constructs. */ |
995 | case OMP_CLAUSE_DEVICE: | |
996 | case OMP_CLAUSE_MAP: | |
43895be5 | 997 | case OMP_CLAUSE_IS_DEVICE_PTR: |
998 | case OMP_CLAUSE_DEFAULTMAP: | |
b6431756 | 999 | case OMP_CLAUSE_DEPEND: |
bc7bff74 | 1000 | s = C_OMP_CLAUSE_SPLIT_TARGET; |
1001 | break; | |
1002 | case OMP_CLAUSE_NUM_TEAMS: | |
1003 | case OMP_CLAUSE_THREAD_LIMIT: | |
1004 | s = C_OMP_CLAUSE_SPLIT_TEAMS; | |
1005 | break; | |
1006 | case OMP_CLAUSE_DIST_SCHEDULE: | |
1007 | s = C_OMP_CLAUSE_SPLIT_DISTRIBUTE; | |
1008 | break; | |
1e8e9920 | 1009 | case OMP_CLAUSE_COPYIN: |
1e8e9920 | 1010 | case OMP_CLAUSE_NUM_THREADS: |
bc7bff74 | 1011 | case OMP_CLAUSE_PROC_BIND: |
1012 | s = C_OMP_CLAUSE_SPLIT_PARALLEL; | |
1e8e9920 | 1013 | break; |
1e8e9920 | 1014 | case OMP_CLAUSE_ORDERED: |
bc7bff74 | 1015 | s = C_OMP_CLAUSE_SPLIT_FOR; |
1016 | break; | |
43895be5 | 1017 | case OMP_CLAUSE_SCHEDULE: |
1018 | s = C_OMP_CLAUSE_SPLIT_FOR; | |
1019 | if (code != OMP_SIMD) | |
1020 | OMP_CLAUSE_SCHEDULE_SIMD (clauses) = 0; | |
1021 | break; | |
bc7bff74 | 1022 | case OMP_CLAUSE_SAFELEN: |
43895be5 | 1023 | case OMP_CLAUSE_SIMDLEN: |
bc7bff74 | 1024 | case OMP_CLAUSE_ALIGNED: |
1025 | s = C_OMP_CLAUSE_SPLIT_SIMD; | |
1026 | break; | |
43895be5 | 1027 | case OMP_CLAUSE_GRAINSIZE: |
1028 | case OMP_CLAUSE_NUM_TASKS: | |
1029 | case OMP_CLAUSE_FINAL: | |
1030 | case OMP_CLAUSE_UNTIED: | |
1031 | case OMP_CLAUSE_MERGEABLE: | |
1032 | case OMP_CLAUSE_NOGROUP: | |
1033 | case OMP_CLAUSE_PRIORITY: | |
1034 | s = C_OMP_CLAUSE_SPLIT_TASKLOOP; | |
1035 | break; | |
1036 | /* Duplicate this to all of taskloop, distribute, for and simd. */ | |
fd6481cf | 1037 | case OMP_CLAUSE_COLLAPSE: |
bc7bff74 | 1038 | if (code == OMP_SIMD) |
1039 | { | |
43895be5 | 1040 | if ((mask & ((OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SCHEDULE) |
1041 | | (OMP_CLAUSE_MASK_1 | |
1042 | << PRAGMA_OMP_CLAUSE_DIST_SCHEDULE) | |
1043 | | (OMP_CLAUSE_MASK_1 | |
1044 | << PRAGMA_OMP_CLAUSE_NOGROUP))) != 0) | |
1045 | { | |
1046 | c = build_omp_clause (OMP_CLAUSE_LOCATION (clauses), | |
1047 | OMP_CLAUSE_COLLAPSE); | |
1048 | OMP_CLAUSE_COLLAPSE_EXPR (c) | |
1049 | = OMP_CLAUSE_COLLAPSE_EXPR (clauses); | |
1050 | OMP_CLAUSE_CHAIN (c) = cclauses[C_OMP_CLAUSE_SPLIT_SIMD]; | |
1051 | cclauses[C_OMP_CLAUSE_SPLIT_SIMD] = c; | |
1052 | } | |
1053 | else | |
1054 | { | |
1055 | /* This must be #pragma omp target simd */ | |
1056 | s = C_OMP_CLAUSE_SPLIT_SIMD; | |
1057 | break; | |
1058 | } | |
bc7bff74 | 1059 | } |
d62c713e | 1060 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SCHEDULE)) != 0) |
bc7bff74 | 1061 | { |
d62c713e | 1062 | if ((mask & (OMP_CLAUSE_MASK_1 |
1063 | << PRAGMA_OMP_CLAUSE_DIST_SCHEDULE)) != 0) | |
bc7bff74 | 1064 | { |
1065 | c = build_omp_clause (OMP_CLAUSE_LOCATION (clauses), | |
1066 | OMP_CLAUSE_COLLAPSE); | |
1067 | OMP_CLAUSE_COLLAPSE_EXPR (c) | |
1068 | = OMP_CLAUSE_COLLAPSE_EXPR (clauses); | |
1069 | OMP_CLAUSE_CHAIN (c) = cclauses[C_OMP_CLAUSE_SPLIT_FOR]; | |
1070 | cclauses[C_OMP_CLAUSE_SPLIT_FOR] = c; | |
1071 | s = C_OMP_CLAUSE_SPLIT_DISTRIBUTE; | |
1072 | } | |
1073 | else | |
1074 | s = C_OMP_CLAUSE_SPLIT_FOR; | |
1075 | } | |
43895be5 | 1076 | else if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOGROUP)) |
1077 | != 0) | |
1078 | s = C_OMP_CLAUSE_SPLIT_TASKLOOP; | |
bc7bff74 | 1079 | else |
1080 | s = C_OMP_CLAUSE_SPLIT_DISTRIBUTE; | |
1081 | break; | |
43895be5 | 1082 | /* Private clause is supported on all constructs, |
bc7bff74 | 1083 | it is enough to put it on the innermost one. For |
1084 | #pragma omp {for,sections} put it on parallel though, | |
1085 | as that's what we did for OpenMP 3.1. */ | |
1086 | case OMP_CLAUSE_PRIVATE: | |
1087 | switch (code) | |
1088 | { | |
1089 | case OMP_SIMD: s = C_OMP_CLAUSE_SPLIT_SIMD; break; | |
1090 | case OMP_FOR: case OMP_SECTIONS: | |
1091 | case OMP_PARALLEL: s = C_OMP_CLAUSE_SPLIT_PARALLEL; break; | |
1092 | case OMP_DISTRIBUTE: s = C_OMP_CLAUSE_SPLIT_DISTRIBUTE; break; | |
1093 | case OMP_TEAMS: s = C_OMP_CLAUSE_SPLIT_TEAMS; break; | |
1094 | default: gcc_unreachable (); | |
1095 | } | |
1096 | break; | |
1097 | /* Firstprivate clause is supported on all constructs but | |
43895be5 | 1098 | simd. Put it on the outermost of those and duplicate on teams |
1099 | and parallel. */ | |
bc7bff74 | 1100 | case OMP_CLAUSE_FIRSTPRIVATE: |
43895be5 | 1101 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_MAP)) |
1102 | != 0) | |
1103 | { | |
1104 | if (code == OMP_SIMD | |
1105 | && (mask & ((OMP_CLAUSE_MASK_1 | |
1106 | << PRAGMA_OMP_CLAUSE_NUM_THREADS) | |
1107 | | (OMP_CLAUSE_MASK_1 | |
1108 | << PRAGMA_OMP_CLAUSE_NUM_TEAMS))) == 0) | |
1109 | { | |
1110 | /* This must be #pragma omp target simd. */ | |
1111 | s = C_OMP_CLAUSE_SPLIT_TARGET; | |
1112 | break; | |
1113 | } | |
1114 | c = build_omp_clause (OMP_CLAUSE_LOCATION (clauses), | |
1115 | OMP_CLAUSE_FIRSTPRIVATE); | |
1116 | OMP_CLAUSE_DECL (c) = OMP_CLAUSE_DECL (clauses); | |
1117 | OMP_CLAUSE_CHAIN (c) = cclauses[C_OMP_CLAUSE_SPLIT_TARGET]; | |
1118 | cclauses[C_OMP_CLAUSE_SPLIT_TARGET] = c; | |
1119 | } | |
d62c713e | 1120 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NUM_THREADS)) |
1121 | != 0) | |
bc7bff74 | 1122 | { |
d62c713e | 1123 | if ((mask & ((OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NUM_TEAMS) |
1124 | | (OMP_CLAUSE_MASK_1 | |
1125 | << PRAGMA_OMP_CLAUSE_DIST_SCHEDULE))) != 0) | |
bc7bff74 | 1126 | { |
1127 | c = build_omp_clause (OMP_CLAUSE_LOCATION (clauses), | |
1128 | OMP_CLAUSE_FIRSTPRIVATE); | |
1129 | OMP_CLAUSE_DECL (c) = OMP_CLAUSE_DECL (clauses); | |
1130 | OMP_CLAUSE_CHAIN (c) = cclauses[C_OMP_CLAUSE_SPLIT_PARALLEL]; | |
1131 | cclauses[C_OMP_CLAUSE_SPLIT_PARALLEL] = c; | |
d62c713e | 1132 | if ((mask & (OMP_CLAUSE_MASK_1 |
1133 | << PRAGMA_OMP_CLAUSE_NUM_TEAMS)) != 0) | |
bc7bff74 | 1134 | s = C_OMP_CLAUSE_SPLIT_TEAMS; |
1135 | else | |
1136 | s = C_OMP_CLAUSE_SPLIT_DISTRIBUTE; | |
1137 | } | |
1138 | else | |
1139 | /* This must be | |
43895be5 | 1140 | #pragma omp parallel{, for{, simd}, sections} |
1141 | or | |
1142 | #pragma omp target parallel. */ | |
bc7bff74 | 1143 | s = C_OMP_CLAUSE_SPLIT_PARALLEL; |
1144 | } | |
d62c713e | 1145 | else if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NUM_TEAMS)) |
1146 | != 0) | |
bc7bff74 | 1147 | { |
5fddcf34 | 1148 | /* This must be one of |
1149 | #pragma omp {,target }teams distribute | |
1150 | #pragma omp target teams | |
1151 | #pragma omp {,target }teams distribute simd. */ | |
1152 | gcc_assert (code == OMP_DISTRIBUTE | |
1153 | || code == OMP_TEAMS | |
1154 | || code == OMP_SIMD); | |
bc7bff74 | 1155 | s = C_OMP_CLAUSE_SPLIT_TEAMS; |
1156 | } | |
d62c713e | 1157 | else if ((mask & (OMP_CLAUSE_MASK_1 |
1158 | << PRAGMA_OMP_CLAUSE_DIST_SCHEDULE)) != 0) | |
bc7bff74 | 1159 | { |
1160 | /* This must be #pragma omp distribute simd. */ | |
1161 | gcc_assert (code == OMP_SIMD); | |
43895be5 | 1162 | s = C_OMP_CLAUSE_SPLIT_DISTRIBUTE; |
1163 | } | |
1164 | else if ((mask & (OMP_CLAUSE_MASK_1 | |
1165 | << PRAGMA_OMP_CLAUSE_NOGROUP)) != 0) | |
1166 | { | |
1167 | /* This must be #pragma omp taskloop simd. */ | |
1168 | gcc_assert (code == OMP_SIMD); | |
1169 | s = C_OMP_CLAUSE_SPLIT_TASKLOOP; | |
bc7bff74 | 1170 | } |
1171 | else | |
1172 | { | |
1173 | /* This must be #pragma omp for simd. */ | |
1174 | gcc_assert (code == OMP_SIMD); | |
1175 | s = C_OMP_CLAUSE_SPLIT_FOR; | |
1176 | } | |
1177 | break; | |
9561765e | 1178 | /* Lastprivate is allowed on distribute, for, sections and simd. In |
bc7bff74 | 1179 | parallel {for{, simd},sections} we actually want to put it on |
1180 | parallel rather than for or sections. */ | |
1181 | case OMP_CLAUSE_LASTPRIVATE: | |
9561765e | 1182 | if (code == OMP_DISTRIBUTE) |
1183 | { | |
1184 | s = C_OMP_CLAUSE_SPLIT_DISTRIBUTE; | |
1185 | break; | |
1186 | } | |
1187 | if ((mask & (OMP_CLAUSE_MASK_1 | |
1188 | << PRAGMA_OMP_CLAUSE_DIST_SCHEDULE)) != 0) | |
1189 | { | |
1190 | c = build_omp_clause (OMP_CLAUSE_LOCATION (clauses), | |
1191 | OMP_CLAUSE_LASTPRIVATE); | |
1192 | OMP_CLAUSE_DECL (c) = OMP_CLAUSE_DECL (clauses); | |
1193 | OMP_CLAUSE_CHAIN (c) = cclauses[C_OMP_CLAUSE_SPLIT_DISTRIBUTE]; | |
1194 | cclauses[C_OMP_CLAUSE_SPLIT_DISTRIBUTE] = c; | |
1195 | } | |
bc7bff74 | 1196 | if (code == OMP_FOR || code == OMP_SECTIONS) |
1197 | { | |
d62c713e | 1198 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NUM_THREADS)) |
1199 | != 0) | |
bc7bff74 | 1200 | s = C_OMP_CLAUSE_SPLIT_PARALLEL; |
1201 | else | |
1202 | s = C_OMP_CLAUSE_SPLIT_FOR; | |
1203 | break; | |
1204 | } | |
1205 | gcc_assert (code == OMP_SIMD); | |
d62c713e | 1206 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SCHEDULE)) != 0) |
bc7bff74 | 1207 | { |
1208 | c = build_omp_clause (OMP_CLAUSE_LOCATION (clauses), | |
1209 | OMP_CLAUSE_LASTPRIVATE); | |
1210 | OMP_CLAUSE_DECL (c) = OMP_CLAUSE_DECL (clauses); | |
d62c713e | 1211 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NUM_THREADS)) |
1212 | != 0) | |
bc7bff74 | 1213 | s = C_OMP_CLAUSE_SPLIT_PARALLEL; |
1214 | else | |
1215 | s = C_OMP_CLAUSE_SPLIT_FOR; | |
1216 | OMP_CLAUSE_CHAIN (c) = cclauses[s]; | |
1217 | cclauses[s] = c; | |
1218 | } | |
1219 | s = C_OMP_CLAUSE_SPLIT_SIMD; | |
1220 | break; | |
43895be5 | 1221 | /* Shared and default clauses are allowed on parallel, teams and |
1222 | taskloop. */ | |
bc7bff74 | 1223 | case OMP_CLAUSE_SHARED: |
1224 | case OMP_CLAUSE_DEFAULT: | |
43895be5 | 1225 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOGROUP)) |
1226 | != 0) | |
bc7bff74 | 1227 | { |
43895be5 | 1228 | s = C_OMP_CLAUSE_SPLIT_TASKLOOP; |
bc7bff74 | 1229 | break; |
1230 | } | |
d62c713e | 1231 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NUM_TEAMS)) |
1232 | != 0) | |
bc7bff74 | 1233 | { |
43895be5 | 1234 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NUM_THREADS)) |
1235 | == 0) | |
1236 | { | |
1237 | s = C_OMP_CLAUSE_SPLIT_TEAMS; | |
1238 | break; | |
1239 | } | |
bc7bff74 | 1240 | c = build_omp_clause (OMP_CLAUSE_LOCATION (clauses), |
1241 | OMP_CLAUSE_CODE (clauses)); | |
1242 | if (OMP_CLAUSE_CODE (clauses) == OMP_CLAUSE_SHARED) | |
1243 | OMP_CLAUSE_DECL (c) = OMP_CLAUSE_DECL (clauses); | |
1244 | else | |
1245 | OMP_CLAUSE_DEFAULT_KIND (c) | |
1246 | = OMP_CLAUSE_DEFAULT_KIND (clauses); | |
1247 | OMP_CLAUSE_CHAIN (c) = cclauses[C_OMP_CLAUSE_SPLIT_TEAMS]; | |
1248 | cclauses[C_OMP_CLAUSE_SPLIT_TEAMS] = c; | |
bc7bff74 | 1249 | } |
1250 | s = C_OMP_CLAUSE_SPLIT_PARALLEL; | |
1251 | break; | |
1252 | /* Reduction is allowed on simd, for, parallel, sections and teams. | |
1253 | Duplicate it on all of them, but omit on for or sections if | |
1254 | parallel is present. */ | |
1255 | case OMP_CLAUSE_REDUCTION: | |
d62c713e | 1256 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SCHEDULE)) != 0) |
bc7bff74 | 1257 | { |
43895be5 | 1258 | if (code == OMP_SIMD) |
1259 | { | |
1260 | c = build_omp_clause (OMP_CLAUSE_LOCATION (clauses), | |
1261 | OMP_CLAUSE_REDUCTION); | |
1262 | OMP_CLAUSE_DECL (c) = OMP_CLAUSE_DECL (clauses); | |
1263 | OMP_CLAUSE_REDUCTION_CODE (c) | |
1264 | = OMP_CLAUSE_REDUCTION_CODE (clauses); | |
1265 | OMP_CLAUSE_REDUCTION_PLACEHOLDER (c) | |
1266 | = OMP_CLAUSE_REDUCTION_PLACEHOLDER (clauses); | |
1267 | OMP_CLAUSE_REDUCTION_DECL_PLACEHOLDER (c) | |
1268 | = OMP_CLAUSE_REDUCTION_DECL_PLACEHOLDER (clauses); | |
1269 | OMP_CLAUSE_CHAIN (c) = cclauses[C_OMP_CLAUSE_SPLIT_SIMD]; | |
1270 | cclauses[C_OMP_CLAUSE_SPLIT_SIMD] = c; | |
1271 | } | |
d62c713e | 1272 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NUM_TEAMS)) |
1273 | != 0) | |
bc7bff74 | 1274 | { |
1275 | c = build_omp_clause (OMP_CLAUSE_LOCATION (clauses), | |
1276 | OMP_CLAUSE_REDUCTION); | |
1277 | OMP_CLAUSE_DECL (c) = OMP_CLAUSE_DECL (clauses); | |
1278 | OMP_CLAUSE_REDUCTION_CODE (c) | |
1279 | = OMP_CLAUSE_REDUCTION_CODE (clauses); | |
1280 | OMP_CLAUSE_REDUCTION_PLACEHOLDER (c) | |
1281 | = OMP_CLAUSE_REDUCTION_PLACEHOLDER (clauses); | |
43895be5 | 1282 | OMP_CLAUSE_REDUCTION_DECL_PLACEHOLDER (c) |
1283 | = OMP_CLAUSE_REDUCTION_DECL_PLACEHOLDER (clauses); | |
bc7bff74 | 1284 | OMP_CLAUSE_CHAIN (c) = cclauses[C_OMP_CLAUSE_SPLIT_PARALLEL]; |
1285 | cclauses[C_OMP_CLAUSE_SPLIT_PARALLEL] = c; | |
1286 | s = C_OMP_CLAUSE_SPLIT_TEAMS; | |
1287 | } | |
d62c713e | 1288 | else if ((mask & (OMP_CLAUSE_MASK_1 |
1289 | << PRAGMA_OMP_CLAUSE_NUM_THREADS)) != 0) | |
bc7bff74 | 1290 | s = C_OMP_CLAUSE_SPLIT_PARALLEL; |
1291 | else | |
1292 | s = C_OMP_CLAUSE_SPLIT_FOR; | |
1293 | } | |
43895be5 | 1294 | else if (code == OMP_SECTIONS || code == OMP_PARALLEL) |
bc7bff74 | 1295 | s = C_OMP_CLAUSE_SPLIT_PARALLEL; |
43895be5 | 1296 | else if (code == OMP_SIMD) |
1297 | s = C_OMP_CLAUSE_SPLIT_SIMD; | |
bc7bff74 | 1298 | else |
1299 | s = C_OMP_CLAUSE_SPLIT_TEAMS; | |
1300 | break; | |
1301 | case OMP_CLAUSE_IF: | |
43895be5 | 1302 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOGROUP)) |
d62c713e | 1303 | != 0) |
43895be5 | 1304 | s = C_OMP_CLAUSE_SPLIT_TASKLOOP; |
1305 | else if ((mask & (OMP_CLAUSE_MASK_1 | |
1306 | << PRAGMA_OMP_CLAUSE_NUM_THREADS)) != 0) | |
1307 | { | |
1308 | if ((mask & (OMP_CLAUSE_MASK_1 | |
1309 | << PRAGMA_OMP_CLAUSE_MAP)) != 0) | |
1310 | { | |
1311 | if (OMP_CLAUSE_IF_MODIFIER (clauses) == OMP_PARALLEL) | |
1312 | s = C_OMP_CLAUSE_SPLIT_PARALLEL; | |
1313 | else if (OMP_CLAUSE_IF_MODIFIER (clauses) == OMP_TARGET) | |
1314 | s = C_OMP_CLAUSE_SPLIT_TARGET; | |
1315 | else if (OMP_CLAUSE_IF_MODIFIER (clauses) == ERROR_MARK) | |
1316 | { | |
1317 | c = build_omp_clause (OMP_CLAUSE_LOCATION (clauses), | |
1318 | OMP_CLAUSE_IF); | |
1319 | OMP_CLAUSE_IF_MODIFIER (c) | |
1320 | = OMP_CLAUSE_IF_MODIFIER (clauses); | |
1321 | OMP_CLAUSE_IF_EXPR (c) = OMP_CLAUSE_IF_EXPR (clauses); | |
1322 | OMP_CLAUSE_CHAIN (c) | |
1323 | = cclauses[C_OMP_CLAUSE_SPLIT_TARGET]; | |
1324 | cclauses[C_OMP_CLAUSE_SPLIT_TARGET] = c; | |
1325 | s = C_OMP_CLAUSE_SPLIT_PARALLEL; | |
1326 | } | |
1327 | else | |
1328 | { | |
1329 | error_at (OMP_CLAUSE_LOCATION (clauses), | |
1330 | "expected %<parallel%> or %<target%> %<if%> " | |
1331 | "clause modifier"); | |
1332 | continue; | |
1333 | } | |
1334 | } | |
1335 | else | |
1336 | s = C_OMP_CLAUSE_SPLIT_PARALLEL; | |
1337 | } | |
bc7bff74 | 1338 | else |
1339 | s = C_OMP_CLAUSE_SPLIT_TARGET; | |
1e8e9920 | 1340 | break; |
43895be5 | 1341 | case OMP_CLAUSE_LINEAR: |
1342 | /* Linear clause is allowed on simd and for. Put it on the | |
1343 | innermost construct. */ | |
1344 | if (code == OMP_SIMD) | |
1345 | s = C_OMP_CLAUSE_SPLIT_SIMD; | |
1346 | else | |
1347 | s = C_OMP_CLAUSE_SPLIT_FOR; | |
1348 | break; | |
b6431756 | 1349 | case OMP_CLAUSE_NOWAIT: |
1350 | /* Nowait clause is allowed on target, for and sections, but | |
1351 | is not allowed on parallel for or parallel sections. Therefore, | |
1352 | put it on target construct if present, because that can only | |
1353 | be combined with parallel for{, simd} and not with for{, simd}, | |
1354 | otherwise to the worksharing construct. */ | |
1355 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_MAP)) | |
1356 | != 0) | |
1357 | s = C_OMP_CLAUSE_SPLIT_TARGET; | |
1358 | else | |
1359 | s = C_OMP_CLAUSE_SPLIT_FOR; | |
1360 | break; | |
1e8e9920 | 1361 | default: |
1362 | gcc_unreachable (); | |
1363 | } | |
bc7bff74 | 1364 | OMP_CLAUSE_CHAIN (clauses) = cclauses[s]; |
1365 | cclauses[s] = clauses; | |
1e8e9920 | 1366 | } |
5e8689fb | 1367 | |
1368 | if (!flag_checking) | |
1369 | return; | |
1370 | ||
43895be5 | 1371 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_MAP)) == 0) |
1372 | gcc_assert (cclauses[C_OMP_CLAUSE_SPLIT_TARGET] == NULL_TREE); | |
1373 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NUM_TEAMS)) == 0) | |
1374 | gcc_assert (cclauses[C_OMP_CLAUSE_SPLIT_TEAMS] == NULL_TREE); | |
1375 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DIST_SCHEDULE)) == 0) | |
1376 | gcc_assert (cclauses[C_OMP_CLAUSE_SPLIT_DISTRIBUTE] == NULL_TREE); | |
1377 | if ((mask & (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NUM_THREADS)) == 0) | |
1378 | gcc_assert (cclauses[C_OMP_CLAUSE_SPLIT_PARALLEL] == NULL_TREE); | |
1379 | if ((mask & ((OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_SCHEDULE) | |
1380 | | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_NOGROUP))) == 0 | |
1381 | && code != OMP_SECTIONS) | |
1382 | gcc_assert (cclauses[C_OMP_CLAUSE_SPLIT_FOR] == NULL_TREE); | |
1383 | if (code != OMP_SIMD) | |
1384 | gcc_assert (cclauses[C_OMP_CLAUSE_SPLIT_SIMD] == NULL_TREE); | |
1e8e9920 | 1385 | } |
1386 | ||
bc7bff74 | 1387 | |
1388 | /* qsort callback to compare #pragma omp declare simd clauses. */ | |
1389 | ||
1390 | static int | |
1391 | c_omp_declare_simd_clause_cmp (const void *p, const void *q) | |
1392 | { | |
1393 | tree a = *(const tree *) p; | |
1394 | tree b = *(const tree *) q; | |
1395 | if (OMP_CLAUSE_CODE (a) != OMP_CLAUSE_CODE (b)) | |
1396 | { | |
1397 | if (OMP_CLAUSE_CODE (a) > OMP_CLAUSE_CODE (b)) | |
1398 | return -1; | |
1399 | return 1; | |
1400 | } | |
1401 | if (OMP_CLAUSE_CODE (a) != OMP_CLAUSE_SIMDLEN | |
1402 | && OMP_CLAUSE_CODE (a) != OMP_CLAUSE_INBRANCH | |
1403 | && OMP_CLAUSE_CODE (a) != OMP_CLAUSE_NOTINBRANCH) | |
1404 | { | |
fcb97e84 | 1405 | int c = tree_to_shwi (OMP_CLAUSE_DECL (a)); |
1406 | int d = tree_to_shwi (OMP_CLAUSE_DECL (b)); | |
bc7bff74 | 1407 | if (c < d) |
1408 | return 1; | |
1409 | if (c > d) | |
1410 | return -1; | |
1411 | } | |
1412 | return 0; | |
1413 | } | |
1414 | ||
1415 | /* Change PARM_DECLs in OMP_CLAUSE_DECL of #pragma omp declare simd | |
1416 | CLAUSES on FNDECL into argument indexes and sort them. */ | |
1417 | ||
1418 | tree | |
1419 | c_omp_declare_simd_clauses_to_numbers (tree parms, tree clauses) | |
1420 | { | |
1421 | tree c; | |
1422 | vec<tree> clvec = vNULL; | |
1423 | ||
1424 | for (c = clauses; c; c = OMP_CLAUSE_CHAIN (c)) | |
1425 | { | |
1426 | if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_SIMDLEN | |
1427 | && OMP_CLAUSE_CODE (c) != OMP_CLAUSE_INBRANCH | |
1428 | && OMP_CLAUSE_CODE (c) != OMP_CLAUSE_NOTINBRANCH) | |
1429 | { | |
1430 | tree decl = OMP_CLAUSE_DECL (c); | |
1431 | tree arg; | |
1432 | int idx; | |
1433 | for (arg = parms, idx = 0; arg; | |
1434 | arg = TREE_CHAIN (arg), idx++) | |
1435 | if (arg == decl) | |
1436 | break; | |
1437 | if (arg == NULL_TREE) | |
1438 | { | |
1439 | error_at (OMP_CLAUSE_LOCATION (c), | |
1440 | "%qD is not an function argument", decl); | |
1441 | continue; | |
1442 | } | |
1443 | OMP_CLAUSE_DECL (c) = build_int_cst (integer_type_node, idx); | |
9561765e | 1444 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LINEAR |
1445 | && OMP_CLAUSE_LINEAR_VARIABLE_STRIDE (c)) | |
1446 | { | |
1447 | decl = OMP_CLAUSE_LINEAR_STEP (c); | |
1448 | for (arg = parms, idx = 0; arg; | |
1449 | arg = TREE_CHAIN (arg), idx++) | |
1450 | if (arg == decl) | |
1451 | break; | |
1452 | if (arg == NULL_TREE) | |
1453 | { | |
1454 | error_at (OMP_CLAUSE_LOCATION (c), | |
1455 | "%qD is not an function argument", decl); | |
1456 | continue; | |
1457 | } | |
1458 | OMP_CLAUSE_LINEAR_STEP (c) | |
1459 | = build_int_cst (integer_type_node, idx); | |
1460 | } | |
bc7bff74 | 1461 | } |
1462 | clvec.safe_push (c); | |
1463 | } | |
1464 | if (!clvec.is_empty ()) | |
1465 | { | |
1466 | unsigned int len = clvec.length (), i; | |
1467 | clvec.qsort (c_omp_declare_simd_clause_cmp); | |
1468 | clauses = clvec[0]; | |
1469 | for (i = 0; i < len; i++) | |
1470 | OMP_CLAUSE_CHAIN (clvec[i]) = (i < len - 1) ? clvec[i + 1] : NULL_TREE; | |
1471 | } | |
386ef929 | 1472 | else |
1473 | clauses = NULL_TREE; | |
bc7bff74 | 1474 | clvec.release (); |
1475 | return clauses; | |
1476 | } | |
1477 | ||
1478 | /* Change argument indexes in CLAUSES of FNDECL back to PARM_DECLs. */ | |
1479 | ||
1480 | void | |
1481 | c_omp_declare_simd_clauses_to_decls (tree fndecl, tree clauses) | |
1482 | { | |
1483 | tree c; | |
1484 | ||
1485 | for (c = clauses; c; c = OMP_CLAUSE_CHAIN (c)) | |
1486 | if (OMP_CLAUSE_CODE (c) != OMP_CLAUSE_SIMDLEN | |
1487 | && OMP_CLAUSE_CODE (c) != OMP_CLAUSE_INBRANCH | |
1488 | && OMP_CLAUSE_CODE (c) != OMP_CLAUSE_NOTINBRANCH) | |
1489 | { | |
fcb97e84 | 1490 | int idx = tree_to_shwi (OMP_CLAUSE_DECL (c)), i; |
bc7bff74 | 1491 | tree arg; |
1492 | for (arg = DECL_ARGUMENTS (fndecl), i = 0; arg; | |
1493 | arg = TREE_CHAIN (arg), i++) | |
1494 | if (i == idx) | |
1495 | break; | |
1496 | gcc_assert (arg); | |
1497 | OMP_CLAUSE_DECL (c) = arg; | |
9561765e | 1498 | if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LINEAR |
1499 | && OMP_CLAUSE_LINEAR_VARIABLE_STRIDE (c)) | |
1500 | { | |
1501 | idx = tree_to_shwi (OMP_CLAUSE_LINEAR_STEP (c)); | |
1502 | for (arg = DECL_ARGUMENTS (fndecl), i = 0; arg; | |
1503 | arg = TREE_CHAIN (arg), i++) | |
1504 | if (i == idx) | |
1505 | break; | |
1506 | gcc_assert (arg); | |
1507 | OMP_CLAUSE_LINEAR_STEP (c) = arg; | |
1508 | } | |
bc7bff74 | 1509 | } |
1510 | } | |
1511 | ||
1e8e9920 | 1512 | /* True if OpenMP sharing attribute of DECL is predetermined. */ |
1513 | ||
1514 | enum omp_clause_default_kind | |
1515 | c_omp_predetermined_sharing (tree decl) | |
1516 | { | |
1517 | /* Variables with const-qualified type having no mutable member | |
1518 | are predetermined shared. */ | |
1519 | if (TREE_READONLY (decl)) | |
1520 | return OMP_CLAUSE_DEFAULT_SHARED; | |
1521 | ||
1522 | return OMP_CLAUSE_DEFAULT_UNSPECIFIED; | |
1523 | } |