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| author | Jakub Jelinek <jakub@redhat.com> | 2021-11-15 13:20:53 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2021-11-15 13:20:53 +0100 |
| commit | aea72386831c0c5672f55983034cc709b968daea (patch) | |
| tree | ab7e82602a7dc1f8e6fefcc5ef16520eea238392 /gcc/c | |
| parent | fcdf49a0ad3282761c7ac72103407ca4ec4d6968 (diff) | |
| download | gcc-aea72386831c0c5672f55983034cc709b968daea.zip gcc-aea72386831c0c5672f55983034cc709b968daea.tar.gz gcc-aea72386831c0c5672f55983034cc709b968daea.tar.bz2 | |
openmp: Add support for thread_limit clause on target
OpenMP 5.1 says that thread_limit clause can also appear on target,
and similarly to teams should affect the thread-limit-var ICV.
On combined target teams, the clause goes to both.
We actually passed thread_limit internally on target already before,
but only used it for gcn/ptx offloading to hint how many threads should be
created and for ptx didn't set thread_limit_var in that case.
Similarly for host fallback.
Also, I found that we weren't copying the args array that contains encoded
thread_limit and num_teams clause for target (etc.) for async target.
2021-11-15 Jakub Jelinek <jakub@redhat.com>
gcc/
* gimplify.c (optimize_target_teams): Only add OMP_CLAUSE_THREAD_LIMIT
to OMP_TARGET_CLAUSES if it isn't there already.
gcc/c-family/
* c-omp.c (c_omp_split_clauses) <case OMP_CLAUSE_THREAD_LIMIT>:
Duplicate to both OMP_TARGET and OMP_TEAMS.
gcc/c/
* c-parser.c (OMP_TARGET_CLAUSE_MASK): Add
PRAGMA_OMP_CLAUSE_THREAD_LIMIT.
gcc/cp/
* parser.c (OMP_TARGET_CLAUSE_MASK): Add
PRAGMA_OMP_CLAUSE_THREAD_LIMIT.
libgomp/
* task.c (gomp_create_target_task): Copy args array as well.
* target.c (gomp_target_fallback): Add args argument.
Set gomp_icv (true)->thread_limit_var if thread_limit is present.
(GOMP_target): Adjust gomp_target_fallback caller.
(GOMP_target_ext): Likewise.
(gomp_target_task_fn): Likewise.
* config/nvptx/team.c (gomp_nvptx_main): Set
gomp_global_icv.thread_limit_var.
* testsuite/libgomp.c-c++-common/thread-limit-1.c: New test.
Diffstat (limited to 'gcc/c')
| -rw-r--r-- | gcc/c/c-parser.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/c/c-parser.c b/gcc/c/c-parser.c index 3c9f587..83e837c 100644 --- a/gcc/c/c-parser.c +++ b/gcc/c/c-parser.c @@ -20963,6 +20963,7 @@ c_parser_omp_target_exit_data (location_t loc, c_parser *parser, | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_ALLOCATE) \ | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEFAULTMAP) \ | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IN_REDUCTION) \ + | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_THREAD_LIMIT) \ | (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_IS_DEVICE_PTR)) static bool |