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29 lines
630 B
C
29 lines
630 B
C
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// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
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#include "test.h"
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// Test for https://llvm.org/bugs/show_bug.cgi?id=23235
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// The bug was that synchronization between thread creation and thread start
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// is not established if pthread_create is followed by pthread_detach.
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int x;
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void *Thread(void *a) {
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x = 42;
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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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pthread_t t;
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x = 43;
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pthread_create(&t, 0, Thread, 0);
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pthread_detach(t);
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barrier_wait(&barrier);
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fprintf(stderr, "PASS\n");
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return 0;
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}
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// CHECK-NOT: WARNING: ThreadSanitizer: data race
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// CHECK: PASS
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