view gcc/testsuite/gcc.dg/tree-ssa/loadpre5.c @ 145:1830386684a0

gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 04ced10e8804
children
line wrap: on
line source

/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-pre-stats" } */
int p;
int r;

__attribute__ ((noinline))
static int a(void)
{
  return p;
}
int foo(int argc)
{
  int q;
  q = a();

  /* We should be able to move the call to a into the if path.
     in a perfect world, we'd actually decide that it can't touch
     r, and not recompute it at all!.  */
  if (argc)
    r = 9;
  return q + a();
}
/* { dg-final { scan-tree-dump-times "Eliminated: 1" 1 "pre"} } */