32 lines
848 B
C++
32 lines
848 B
C++
// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
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#include "test.h"
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int Global;
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extern "C" void AnnotateIgnoreWritesBegin(const char *f, int l);
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extern "C" void AnnotateIgnoreWritesEnd(const char *f, int l);
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extern "C" void AnnotateIgnoreReadsBegin(const char *f, int l);
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extern "C" void AnnotateIgnoreReadsEnd(const char *f, int l);
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void *Thread(void *x) {
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AnnotateIgnoreWritesBegin(__FILE__, __LINE__);
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AnnotateIgnoreReadsBegin(__FILE__, __LINE__);
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Global = 42;
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AnnotateIgnoreReadsEnd(__FILE__, __LINE__);
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AnnotateIgnoreWritesEnd(__FILE__, __LINE__);
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barrier_wait(&barrier);
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return 0;
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}
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int main() {
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barrier_init(&barrier, 2);
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pthread_t t;
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pthread_create(&t, 0, Thread, 0);
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barrier_wait(&barrier);
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Global = 43;
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pthread_join(t, 0);
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printf("OK\n");
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}
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// CHECK-NOT: WARNING: ThreadSanitizer: data race
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