Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/gcov/gcov-threads-1.C @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 84e7813d76e9 |
children |
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/* { dg-options "-fprofile-arcs -ftest-coverage -pthread -fprofile-update=atomic" } */ /* { dg-do run { target native } } */ /* { dg-require-effective-target profile_update_atomic } */ #include <stdint.h> #include <pthread.h> #include <assert.h> #define NR 5 pthread_mutex_t cndMs[NR]; static void *ContentionNoDeadlock_thread(void *start) { for (uint32_t k = 0; k < 100000; ++k) /* count(500005) */ { int starti = *(int*)start; /* count(500000) */ for (uint32_t i = starti; i < NR; ++i) pthread_mutex_lock (&cndMs[i]); for (int32_t i = NR - 1; i >= starti; --i) pthread_mutex_unlock (&cndMs[i]); } return 0; } int main(int argc, char **argv) { for (unsigned i = 0; i < NR; i++) cndMs[i] = PTHREAD_MUTEX_INITIALIZER; pthread_t t[NR]; int ids[NR]; for (int i = 0; i < NR; i++) { ids[i] = i; int r = pthread_create (&t[i], NULL, ContentionNoDeadlock_thread, &ids[i]); assert (r == 0); /* count(5*) */ } int ret; for (int i = 0; i < NR; i++) { int r = pthread_join (t[i], (void**)&ret); assert (r == 0); /* count(5*) */ } return 0; /* count(1) */ } /* { dg-final { run-gcov gcov-threads-1.C } } */