Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/tree-ssa/pr93582-11.c @ 152:2b5abeee2509
update gcc11
author | anatofuz |
---|---|
date | Mon, 25 May 2020 07:50:57 +0900 |
parents | |
children |
line wrap: on
line source
/* PR tree-optimization/93582 */ /* { dg-do compile { target lp64 } } */ /* { dg-options "-O2 -fdump-tree-fre1" } */ /* { dg-final { scan-tree-dump "return 9223372036854775806;" "fre1" } } */ union U { struct A { unsigned long long a : 1, b : 62, c : 1; } a; unsigned long long i; }; unsigned long long foo (char *p) { __builtin_memset (p - 0xfffffffffffffffULL, 0, 0xffffffffffffffeULL); __builtin_memset (p + 1, 0, 0xffffffffffffffeULL); union U *q = (union U *) (void *) (p - 4); q->a.b = -1; return q->i; }