| 1 | /// The static TLS block is reused among by threads. The shadow is cleared. |
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| 2 | // RUN: %clang_nsan %s -o %t |
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| 3 | // RUN: env NSAN_OPTIONS=halt_on_error=1,log2_max_relative_error=19 %run %t |
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| 4 | |
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| 5 | #include <pthread.h> |
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| 6 | #include <stdio.h> |
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| 7 | |
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| 8 | __thread float x; |
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| 9 | |
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| 10 | static void *ThreadFn(void *a) { |
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| 11 | long i = (long)a; |
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| 12 | for (long j = i * 1000; j < (i + 1) * 1000; j++) |
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| 13 | x += j; |
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| 14 | printf(format: "%f\n" , x); |
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| 15 | return 0; |
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| 16 | } |
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| 17 | |
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| 18 | int main() { |
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| 19 | pthread_t t; |
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| 20 | for (long i = 0; i < 5; ++i) { |
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| 21 | pthread_create(newthread: &t, attr: 0, start_routine: ThreadFn, arg: (void *)i); |
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| 22 | pthread_join(th: t, thread_return: 0); |
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| 23 | } |
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| 24 | } |
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| 25 | |
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