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/* { dg-do compile } */
#include <omp.h>
void
example_criticial ()
{
int a, b;
#pragma omp parallel for
for (int i = 0; i < 10; ++i)
{
#pragma omp critical hint(omp_sync_hint_none) /* OK */
a += i;
#pragma omp critical (HASH) hint(omp_sync_hint_none) /* OK */
a += i;
#pragma omp critical (HASH2) hint(omp_sync_hint_uncontended) /* OK */
a += i;
#pragma omp critical (HASH3) hint(omp_sync_hint_contended) /* OK */
a += i;
#pragma omp critical (HASH4) hint(omp_sync_hint_speculative) /* OK */
a += i;
#pragma omp critical (HASH5) hint(omp_sync_hint_nonspeculative) /* OK */
a += i;
#pragma omp critical (HASH6) hint(omp_sync_hint_contended + omp_sync_hint_speculative) /* OK */
a += i;
#pragma omp critical (HASH6) hint(omp_sync_hint_contended | omp_sync_hint_speculative) /* OK */
a += i;
/* Accepted but invalid: different hint for same name. */
#pragma omp critical (HASH6) hint(omp_sync_hint_uncontended + omp_sync_hint_speculative)
a += i;
/* Accepted but invalid: Some random integer expr. */
#pragma omp critical (HASH) hint(omp_sync_hint_speculative + 1 + 2)
a += i;
#pragma omp critical (HASH) hint(-3) /* { dg-error "expected constant integer expression" } */
a += i;
#pragma omp critical (HASH2) hint(b) /* { dg-error "constant integer expression" } */
a += i;
/*
Fails with gcc as 'expected identifier' and
with g++ as "clause requires a name, except when 'omp_sync_hint_none'"
#pragma omp critical () hint(omp_sync_hint_speculative)
a += i;
*/
#pragma omp critical hint(omp_sync_hint_speculative) /* { dg-error "with 'hint' clause requires a name, except when 'omp_sync_hint_none' is used" } */
a += i;
}
}
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