forked from OSchip/llvm-project
31 lines
637 B
C++
31 lines
637 B
C++
// RUN: %clangxx_tsan -O1 %s -o %t && %run %t | FileCheck %s
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// Regtest for https://github.com/google/sanitizers/issues/447
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// This is a correct program and tsan should not report a race.
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#include "test.h"
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int g;
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__attribute__((noinline))
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int foo(int cond) {
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if (cond)
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return g;
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return 0;
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}
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void *Thread1(void *p) {
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barrier_wait(&barrier);
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long res = foo((long)p);
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return (void*) res;
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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, Thread1, 0);
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g = 1;
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barrier_wait(&barrier);
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pthread_join(t, 0);
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printf("PASS\n");
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// CHECK-NOT: ThreadSanitizer: data race
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// CHECK: PASS
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}
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