233f401c2b
Add a script that is used to deflake inherently flaky tsan tests. It is invoked from lit tests as: %deflake %run %t The script runs the target program up to 10 times, until it produces a tsan warning. llvm-svn: 209898
30 lines
525 B
C++
30 lines
525 B
C++
// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
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#include <pthread.h>
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#include <stddef.h>
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#include <unistd.h>
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void *Thread2(void *a) {
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sleep(1);
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*(int*)a = 43;
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return 0;
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}
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void *Thread(void *a) {
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int Var = 42;
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pthread_t t;
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pthread_create(&t, 0, Thread2, &Var);
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Var = 42;
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pthread_join(t, 0);
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return 0;
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}
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int main() {
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pthread_t t;
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pthread_create(&t, 0, Thread, 0);
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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: Location is stack of thread T1.
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