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view libgomp/testsuite/libgomp.c/single-1.c @ 138:fc828634a951
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Thu, 08 Nov 2018 14:17:14 +0900 |
parents | a06113de4d67 |
children |
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/* Trivial test of single. */ /* { dg-require-effective-target sync_int_long } */ #include <omp.h> #include <sys/time.h> #include <unistd.h> #include <assert.h> #include "libgomp_g.h" static int test; static void f_nocopy (void *dummy) { if (GOMP_single_start ()) { int iam = omp_get_thread_num (); int old = __sync_lock_test_and_set (&test, iam); assert (old == -1); } } static void f_copy (void *dummy) { int *x = GOMP_single_copy_start (); if (x == NULL) { int iam = omp_get_thread_num (); int old = __sync_lock_test_and_set (&test, iam); assert (old == -1); GOMP_single_copy_end (&test); } else assert (x == &test); } int main() { omp_set_dynamic (0); test = -1; GOMP_parallel_start (f_nocopy, NULL, 3); f_nocopy (NULL); GOMP_parallel_end (); test = -1; GOMP_parallel_start (f_copy, NULL, 3); f_copy (NULL); GOMP_parallel_end (); return 0; }