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32 lines
940 B
C++
32 lines
940 B
C++
// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t 2>&1 | FileCheck %s
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// Also check that atomics instrumentation can be configured by either driver or
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// legacy flags:
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// RUN: %clangxx_tsan -O1 %s -o %t -fno-sanitize-thread-atomics && not %deflake %run %t 2>&1 \
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// RUN: | FileCheck --allow-empty --check-prefix=CHECK-NO-ATOMICS %s
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// RUN: %clangxx_tsan -O1 %s -o %t -mllvm -tsan-instrument-atomics=0 && not %deflake %run %t 2>&1 \
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// RUN: | FileCheck --allow-empty --check-prefix=CHECK-NO-ATOMICS %s <%t
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#include "test.h"
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void *Thread(void *a) {
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__atomic_fetch_add((int*)a, 1, __ATOMIC_SEQ_CST);
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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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int *a = new int(0);
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pthread_t t;
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pthread_create(&t, 0, Thread, a);
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barrier_wait(&barrier);
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delete a;
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pthread_join(t, 0);
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}
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// CHECK: WARNING: ThreadSanitizer: data race
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// CHECK-NO-ATOMICS-NOT: WARNING: ThreadSanitizer: data race
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