Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/tree-prof/val-profiler-threads-1.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-options "-O0 -pthread -fprofile-update=atomic" } */ /* { dg-require-effective-target profile_update_atomic } */ #include <pthread.h> #define NUM_THREADS 8 #define SIZE 1024 #define ITERATIONS (1000 * 1000) char buffer[SIZE]; char buffer2[SIZE]; void *copy_memory(char *dst, char *src, unsigned size) { for (unsigned i = 0; i < ITERATIONS; i++) { dst[size % 10] = src[size % 20]; } } void *foo(void *d) { copy_memory (buffer, buffer2, SIZE); } int main(int argc, char *argv[]) { pthread_t threads[NUM_THREADS]; int rc; long t; for(t=0;t<NUM_THREADS;t++){ rc = pthread_create(&threads[t], NULL, foo, 0); if (rc){ return 1; } } void *retval; for(t=0;t<NUM_THREADS;t++) pthread_join (threads[t], &retval); return buffer[10]; }