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34 lines
613 B
34 lines
613 B
4 months ago
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// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
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#include <pthread.h>
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#include <stdlib.h>
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#include <stdio.h>
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struct Cache {
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int x;
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explicit Cache(int x)
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: x(x) {
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}
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};
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void foo(Cache *my) {
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static Cache *c = my ? my : new Cache(rand());
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if (c->x >= RAND_MAX)
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exit(1);
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}
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void *Thread(void *x) {
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foo(new Cache(rand()));
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return 0;
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}
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int main() {
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pthread_t t[2];
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pthread_create(&t[0], 0, Thread, 0);
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pthread_create(&t[1], 0, Thread, 0);
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pthread_join(t[0], 0);
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pthread_join(t[1], 0);
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fprintf(stderr, "PASS\n");
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}
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// CHECK-NOT: WARNING: ThreadSanitizer: data race
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