Peyton, Jonathan L ee1c04a926 [OpenMP] Fix if0 task with dependencies in the runtime
The current GOMP interface for serialized tasks does not take into
account task dependencies. Add the check and wait for dependencies.

Fixes: https://bugs.llvm.org/show_bug.cgi?id=46573

Differential Revision: https://reviews.llvm.org/D87271
2020-09-24 09:47:53 -05:00

40 lines
582 B
C

// RUN: %libomp-compile-and-run
#include <stdio.h>
#include <stdlib.h>
#include <omp.h>
#include "omp_my_sleep.h"
int a = 0;
void task1() {
my_sleep(0.5);
a = 10;
}
void task2() {
a++;
}
int main(int argc, char** argv)
{
#pragma omp parallel shared(argc) num_threads(2)
{
#pragma omp single
{
#pragma omp task depend(out: a)
task1();
#pragma omp task if(0) depend(inout: a)
task2();
}
}
if (a != 11) {
fprintf(stderr, "fail: expected 11, but a is %d\n", a);
exit(1);
} else {
printf("pass\n");
}
return 0;
}