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view gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-13.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
line wrap: on
line source

/* { dg-do compile } */
/* { dg-options "-O -fdump-tree-dse1-details" } */

struct A { char c[4]; } a, b;

void
f1 (void)
{
  __builtin_memcpy (&a.c[0], "a", 1);
  a = b;
}

void
f2 (void)
{
  __builtin_memcpy (&a.c[0], "a", 1);
  __builtin_memcpy (&a.c[0], "cdef", 4);
}

/* { dg-final { scan-tree-dump-times "Deleted dead store" 2 "dse1" } } */