Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/c-c++-common/simulate-thread/bitfields-3.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-do link } */ /* { dg-options "-fno-allow-store-data-races" } */ /* { dg-final { simulate-thread } } */ #include <stdio.h> #include "../../gcc.dg/simulate-thread/simulate-thread.h" /* Store into <c> should not clobber <d>. */ struct bits { char a; int b:7; int c:9; unsigned char d; } var; static int global = 0; void simulate_thread_other_threads() { global++; var.d = global; } int simulate_thread_step_verify() { if (var.d != global) { printf("FAIL: invalid intermediate result\n"); return 1; } return 0; } int simulate_thread_final_verify() { if (var.c != 5) { printf("FAIL: invalid final result\n"); return 1; } return 0; } __attribute__((noinline)) void update_c(struct bits *p, int val) { p -> c = val; } __attribute__((noinline)) void simulate_thread_main() { update_c(&var, 5); } int main() { simulate_thread_main(); simulate_thread_done(); return 0; }