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a59dad920f
Use FileCheck's --implicit-check-not='ThreadSanitizer' which increases the strictness of our tests a bit. NFC. ``` CHECK: start CHECK-NOT: ThreadSanitizer CHECK: done ``` With --implicit-check-not, the above is turned into: ``` CHECK-NOT: ThreadSanitizer CHECK: start CHECK-NOT: ThreadSanitizer CHECK: done CHECK-NOT: ThreadSanitizer ``` llvm-svn: 360927
37 lines
828 B
C
37 lines
828 B
C
// RUN: %clang_tsan %s -o %t
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// RUN: %run %t 2>&1 | FileCheck %s --implicit-check-not='ThreadSanitizer'
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#include "dispatch/dispatch.h"
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#include <stdio.h>
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long global;
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static const long nIter = 1000;
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int main() {
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fprintf(stderr, "Hello world.\n");
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dispatch_semaphore_t done = dispatch_semaphore_create(0);
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dispatch_queue_t serial_q = dispatch_queue_create("my.queue", DISPATCH_QUEUE_SERIAL);
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global = 42;
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for (int i = 0; i < nIter; i++) {
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dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
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dispatch_sync(serial_q, ^{
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global = i;
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if (i == nIter - 1) {
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dispatch_semaphore_signal(done);
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}
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});
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});
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}
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dispatch_semaphore_wait(done, DISPATCH_TIME_FOREVER);
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fprintf(stderr, "Done.\n");
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}
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// CHECK: Hello world.
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// CHECK: Done.
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