27 lines
636 B
C++
27 lines
636 B
C++
// RUN: %clangxx_tsan %s -o %t
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// RUN: %run %t 2>&1 | FileCheck %s
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// bench.h needs pthread barriers which are not available on OS X
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// UNSUPPORTED: darwin
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#include "bench.h"
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int *x;
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const int kStride = 32;
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void thread(int tid) {
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__atomic_load_n(&x[tid * kStride], __ATOMIC_ACQUIRE);
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for (int i = 0; i < bench_niter; i++)
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__atomic_store_n(&x[tid * kStride], 0, __ATOMIC_RELEASE);
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}
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void bench() {
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x = (int*)malloc(bench_nthread * kStride * sizeof(x[0]));
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for (int i = 0; i < bench_nthread; i++)
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__atomic_store_n(&x[i * kStride], 0, __ATOMIC_RELEASE);
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start_thread_group(bench_nthread, thread);
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}
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// CHECK: DONE
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