Mercurial > hg > CbC > CbC_gcc

view gcc/testsuite/gcc.dg/tree-ssa/reassoc-41.c @ 131:84e7813d76e9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
line wrap: on
line source

/* PR tree-optimization/67815 */
/* { dg-do compile } */
/* { dg-options "-Ofast -fno-rounding-math -fdump-tree-reassoc1-details" } */

/* Test that the copysign reassoc optimization does fire for
   -fno-rounding-math (i.e. HONOR_SIGN_DEPENDENT_ROUNDING) if the multiplication
   is inexact.  */

double
f1 (double y)
{
  return (1.2 * __builtin_copysign (1.1, y));
}

double
f2 (double y)
{
  return (-1.2 * __builtin_copysign (1.1, y));
}

/* { dg-final { scan-tree-dump-times "Optimizing copysign" 2 "reassoc1"} }*/