Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/pr29215.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
line wrap: on
line source
/* PR middle-end/29215 */ /* { dg-do compile } */ /* { dg-options "-O2 -fdump-tree-ccp1" } */ char buf[5 * sizeof (int) + 1] __attribute__((aligned (__alignof__ (int)))); static void foo (int arg1, int arg2, int arg3, int arg4, int arg5) { __builtin_memcpy (buf, &arg1, sizeof (int)); __builtin_memcpy (buf + sizeof (int), &arg2, sizeof (int)); __builtin_memcpy (buf + 2 * sizeof (int), &arg3, sizeof (int)); __builtin_memcpy (buf + 3 * sizeof (int), &arg4, sizeof (int)); __builtin_memcpy (buf + 4 * sizeof (int), &arg5, sizeof (int)); } int main (void) { union { char buf[4]; int i; } u; u.i = 0; u.buf[0] = 'a'; u.buf[1] = 'b'; u.buf[2] = 'c'; u.buf[3] = 'd'; foo (u.i, u.i, u.i, u.i, u.i); buf[5 * sizeof (int)] = '\0'; __builtin_puts (buf); return 0; } /* { dg-final { scan-tree-dump-not "memcpy" "ccp1" } } */