Files
clang-p2996/compiler-rt/test/tsan/libdispatch/sync-norace.c
Julian Lettner c77bf89dcc [TSan][libdispatch] Move libdispatch tests out of Darwin folder
The libdispatch tests are now not tied to Darwin anymore. Move them to
their own platform-independent folder.

llvm-svn: 358316
2019-04-12 23:07:00 +00:00

38 lines
828 B
C

// RUN: %clang_tsan %s -o %t
// RUN: %run %t 2>&1 | FileCheck %s
#include "dispatch/dispatch.h"
#include <stdio.h>
long global;
static const long nIter = 1000;
int main() {
fprintf(stderr, "Hello world.\n");
dispatch_semaphore_t done = dispatch_semaphore_create(0);
dispatch_queue_t serial_q = dispatch_queue_create("my.queue", DISPATCH_QUEUE_SERIAL);
global = 42;
for (int i = 0; i < nIter; i++) {
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
dispatch_sync(serial_q, ^{
global = i;
if (i == nIter - 1) {
dispatch_semaphore_signal(done);
}
});
});
}
dispatch_semaphore_wait(done, DISPATCH_TIME_FOREVER);
fprintf(stderr, "Done.\n");
}
// CHECK: Hello world.
// CHECK: Done.
// CHECK-NOT: WARNING: ThreadSanitizer