gcc/testsuite/gcc.dg/pr48067.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -ffast-math -fno-tree-forwprop -fno-tree-reassoc" } */
   3 /* { dg-options "-O2 -ffast-math -fno-tree-forwprop -fno-tree-reassoc -mfma4" { target x86_64-*-* i?86-*-* } } */
   4
   5 float
   6 foo (float x, float cim)
   7 {
   8   float c = x * cim;
   9   float d = -c;
  10   return c - d;
  11 }