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
28 lines
542 B
C++
28 lines
542 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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volatile int N; // Prevent loop unrolling.
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int **data;
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void *Thread1(void *x) {
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for (int i = 0; i < N; i++)
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data[i][0] = 42;
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return 0;
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}
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int main() {
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N = 4;
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data = new int*[N];
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for (int i = 0; i < N; i++)
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data[i] = new int;
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pthread_t t;
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pthread_create(&t, 0, Thread1, 0);
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Thread1(0);
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pthread_join(t, 0);
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for (int i = 0; i < N; i++)
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delete data[i];
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delete[] data;
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}
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// CHECK: ThreadSanitizer: reported 1 warnings
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