gcc/testsuite/gcc.dg/pr104420-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3 /* { dg-add-options ieee } */
   4
   5 double f(int a)
   6 {
   7   return a * -0.0;
   8 }
   9
  10 /* { dg-final { scan-tree-dump " \\\* -0.0" "optimized" } } */