gcc/testsuite/gcc.dg/20060425-1.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O1" } */
   3
   4 /* This failed because if conversion didn't handle insv patterns properly.  */
   5
   6 void abort (void);
   7
   8 union y
   9 {
  10   int a;
  11   unsigned short b;
  12 };
  13
  14 void __attribute__ ((noinline))
  15 bar (unsigned short u, union y v)
  16 {
  17   if (u != 1)
  18     abort ();
  19 }
  20
  21 void __attribute__ ((noinline))
  22 foo (int check)
  23 {
  24   union y x;
  25
  26   if (check != 0)
  27     x.b = 1;
  28   else
  29     x.b = 2;
  30   bar (x.b, x);
  31 }
  32
  33 int
  34 main ()
  35 {
  36   foo (1);
  37   return 0;
  38 }