gcc/testsuite/gcc.dg/tree-ssa/pr116406.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Os -finstrument-functions-once" } */
   3 /* { dg-additional-options "-mfpmath=387" { target { x86_64-*-* i?86-*-* } } } */
   4
   5 typedef union {
   6   float f32;
   7   double f64;
   8   long i64;
   9 } U;
  10
  11 _Bool
  12 foo (int c, U u)
  13 {
  14   switch (c)
  15     {
  16     case 1:
  17       return u.f32 - u.f64;
  18     case 0:
  19       return u.i64;
  20     }
  21 }