gcc/testsuite/gcc.dg/vect/bb-slp-pr101207.c

   1 /* { dg-additional-options "-ffast-math" } */
   2
   3 #include "tree-vect.h"
   4
   5 double a[2];
   6 double x, y;
   7
   8 void __attribute__((noipa)) foo ()
   9 {
  10   x = a[1] - a[0];
  11   y = a[0] + a[1];
  12 }
  13
  14 int main()
  15 {
  16   check_vect ();
  17
  18   a[0] = 0.;
  19   a[1] = 1.;
  20   foo ();
  21   if (x != 1. || y != 1.)
  22     __builtin_abort ();
  23   return 0;
  24 }