forked from OSchip/llvm-project
40 lines
1.0 KiB
C++
40 lines
1.0 KiB
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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int WTFGlobal;
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extern "C" {
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void AnnotateBenignRaceSized(const char *f, int l,
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void *mem, unsigned int size, const char *desc);
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void WTFAnnotateBenignRaceSized(const char *f, int l,
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void *mem, unsigned int size,
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const char *desc);
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}
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void *Thread(void *x) {
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Global = 42;
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WTFGlobal = 142;
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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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AnnotateBenignRaceSized(__FILE__, __LINE__,
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&Global, sizeof(Global), "Race on Global");
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WTFAnnotateBenignRaceSized(__FILE__, __LINE__,
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&WTFGlobal, sizeof(WTFGlobal),
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"Race on WTFGlobal");
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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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WTFGlobal = 143;
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pthread_join(t, 0);
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fprintf(stderr, "OK\n");
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}
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// CHECK-NOT: WARNING: ThreadSanitizer: data race
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