gcc/testsuite/gcc.target/i386/builtin-unreachable.c

   1 /* This should return 1 without setting up a stack frame or
   2    jumping.  */
   3 /* { dg-do compile } */
   4 /* { dg-require-effective-target ia32 } */
   5 /* { dg-options "-O2 -fomit-frame-pointer" } */
   6 int h (char *p)
   7 {
   8   if (*p)
   9     __builtin_unreachable ();
  10   return p ? 1 : 0;
  11 }
  12 /* { dg-final { scan-assembler-not "%e\[bs\]p" } } */
  13 /* { dg-final { scan-assembler-not "\[\\t \]+j" } } */