| 1 | // RUN: %clangxx_tsan %s -o %t |
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| 2 | // RUN: %run %t 2>&1 | FileCheck %s |
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| 3 | |
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| 4 | // bench.h needs pthread barriers which are not available on OS X |
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| 5 | // UNSUPPORTED: darwin |
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| 6 | |
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| 7 | #include "bench.h" |
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| 8 | |
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| 9 | int *x; |
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| 10 | const int kStride = 32; |
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| 11 | |
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| 12 | void thread(int tid) { |
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| 13 | __atomic_load_n(&x[tid * kStride], __ATOMIC_ACQUIRE); |
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| 14 | for (int i = 0; i < bench_niter; i++) |
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| 15 | __atomic_store_n(&x[tid * kStride], 0, __ATOMIC_RELEASE); |
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| 16 | } |
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| 17 | |
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| 18 | void bench() { |
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| 19 | x = (int*)malloc(size: bench_nthread * kStride * sizeof(x[0])); |
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| 20 | for (int i = 0; i < bench_nthread; i++) |
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| 21 | __atomic_store_n(&x[i * kStride], 0, __ATOMIC_RELEASE); |
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| 22 | start_thread_group(nth: bench_nthread, f: thread); |
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| 23 | } |
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| 24 | |
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| 25 | // CHECK: DONE |
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| 26 | |
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| 27 | |
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