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[OpenMP][Tools][NFC] Make an Archer test more robust 

The execution order of the tasks is not fixed, so there is no ordering
for the write accesses. Enforce the ordering that is expected in the check.
This commit is contained in:
Joachim Protze 2021-10-15 17:16:07 +02:00
parent cef9978027
commit 26b675d65e
1 changed files with 6 additions and 4 deletions
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10
openmp/tools/archer/tests/races/task-dependency.c
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@ -19,15 +19,16 @@
#include <unistd.h>
int main(int argc, char *argv[]) {
int var = 0, a = 0;
int var = 0, a = 0, b = 0;
#pragma omp parallel num_threads(8) shared(var, a)
#pragma omp master
{
#pragma omp task shared(var, a) depend(out : var)
#pragma omp task shared(var, a, b) depend(out : var)
{
OMPT_SIGNAL(a);
var++;
OMPT_SIGNAL(b);
}
#pragma omp task shared(a) depend(in : var)
@ -36,8 +37,9 @@ int main(int argc, char *argv[]) {
OMPT_WAIT(a, 3);
}
#pragma omp task shared(var) // depend(in: var) is missing here!
#pragma omp task shared(var, b) // depend(in: var) is missing here!
{
OMPT_WAIT(b, 1);
var++;
OMPT_SIGNAL(a);
}
@ -53,7 +55,7 @@ int main(int argc, char *argv[]) {
// CHECK: WARNING: ThreadSanitizer: data race
// CHECK-NEXT: {{(Write|Read)}} of size 4
// CHECK-NEXT: #0 {{.*}}task-dependency.c:41
// CHECK-NEXT: #0 {{.*}}task-dependency.c:43
// CHECK: Previous write of size 4
// CHECK-NEXT: #0 {{.*}}task-dependency.c:30
// CHECK: DONE