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view gcc/testsuite/gcc.dg/pr59643.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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/* PR tree-optimization/59643 */
/* { dg-do compile } */
/* { dg-options "-O3 -fdump-tree-pcom-details" } */

void
foo (double *a, double *b, double *c, double d, double e, int n)
{
  int i;
  for (i = 1; i < n - 1; i++)
    a[i] = d * (b[i] + c[i] + a[i - 1] + a[i + 1]) + e * a[i];
}

/* { dg-final { scan-tree-dump-times "Before commoning:" 1 "pcom" } } */
/* { dg-final { scan-tree-dump-times "Unrolling 2 times" 1 "pcom" } } */