gcc/testsuite/gcc.dg/pr55094.c

   1 /* PR middle-end/55094 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-fcompare-debug -Os" } */
   4 /* { dg-additional-options "-fomit-frame-pointer -fno-asynchronous-unwind-tables -mpreferred-stack-boundary=2" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
   5
   6 extern int fn (long);
   7 int v;
   8
   9 int
  10 foo (int x, long *y)
  11 {
  12   if (x)
  13     {
  14       fn (y[0]);
  15       __builtin_trap ();
  16     }
  17   __builtin_trap ();
  18 }
  19
  20 int
  21 bar (int x, long *y)
  22 {
  23   if (x)
  24     {
  25       fn (y[0]);
  26       v = 1;
  27       __builtin_unreachable ();
  28     }
  29   v = 1;
  30   __builtin_unreachable ();
  31 }
  32
  33 int
  34 baz (int x, long *y)
  35 {
  36   if (x)
  37     {
  38       fn (y[0]);
  39       v = 1;
  40       __builtin_unreachable ();
  41     }
  42   v = 1;
  43   int w = 1;
  44   __builtin_unreachable ();
  45 }