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view gcc/testsuite/gcc.dg/predict-1.c @ 131:84e7813d76e9

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

/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-profile_estimate" } */

extern int global;

int bar(int);

void foo (int bound)
{
  int i, ret = 0;
  for (i = 0; i < bound; i++)
    {
      if (i > bound)
	global += bar (i);
      if (i >= bound + 2)
	global += bar (i);
      if (i > bound - 2)
	global += bar (i);
      if (i + 2 > bound)
	global += bar (i);
      if (i == 10)
	global += bar (i);
    }
}

/* { dg-final { scan-tree-dump-times "guess loop iv compare heuristics of edge\[^:\]*: 36.00%" 4 "profile_estimate"} } */