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tools
archer
tests
task
taskwait-depend.c
Go to the documentation of this file.
1
/*
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* taskwait-depend.c -- Archer testcase
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* derived from DRB166-taskdep4-orig-omp50-no.c in DataRaceBench
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*/
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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//
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// See tools/archer/LICENSE.txt for details.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// RUN: %libarcher-compile-and-run | FileCheck %s
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// REQUIRES: tsan
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#include "ompt/ompt-signal.h"
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#include <omp.h>
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#include <stdio.h>
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void
foo
() {
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int
x = 0, y = 2, sem = 0;
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#pragma omp task depend(inout : x) shared(x, sem)
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{
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OMPT_SIGNAL
(sem);
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x++;
// 1st Child Task
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}
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#pragma omp task shared(y, sem)
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{
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OMPT_SIGNAL
(sem);
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y--;
// 2nd child task
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}
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OMPT_WAIT
(sem, 2);
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#pragma omp taskwait depend(in : x)
// 1st taskwait
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printf(
"x=%d\n"
, x);
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#pragma omp taskwait
// 2nd taskwait
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printf(
"y=%d\n"
, y);
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}
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int
main
() {
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#pragma omp parallel num_threads(2)
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#pragma omp single
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foo
();
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return
0;
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}
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// CHECK-NOT: ThreadSanitizer: data race
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// CHECK-NOT: ThreadSanitizer: reported
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// CHECK: y=1
OMPT_WAIT
#define OMPT_WAIT(s, v)
Definition:
ompt-signal.h:20
OMPT_SIGNAL
#define OMPT_SIGNAL(s)
Definition:
ompt-signal.h:12
main
int main()
Definition:
taskwait-depend.c:16
foo
void foo()
Definition:
taskwait-depend.c:22
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