| 1 | // RUN: %clangxx_tsan -O1 %s %link_libcxx_tsan -o %t && %run %t 2>&1 | FileCheck %s |
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| 2 | #include <stdio.h> |
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| 3 | #include <memory> |
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| 4 | #include <thread> |
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| 5 | |
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| 6 | int main() { |
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| 7 | int v1 = 0; |
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| 8 | int v2 = 0; |
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| 9 | std::thread t1; |
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| 10 | std::thread t2; |
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| 11 | |
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| 12 | { |
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| 13 | auto thingy = std::make_shared<int>(42); |
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| 14 | t1 = std::thread([thingy, &v1] { v1 = *thingy; }); |
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| 15 | t2 = std::thread([thingy, &v2] { v2 = *thingy; }); |
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| 16 | } |
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| 17 | |
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| 18 | t1.join(); |
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| 19 | t2.join(); |
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| 20 | printf(format: "%d %d\n" , v1, v2); |
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| 21 | // CHECK-NOT: ThreadSanitizer: data race |
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| 22 | // CHECK: 42 42 |
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| 23 | return 0; |
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| 24 | } |
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| 25 | |
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