llvm-gcc-4.0/gcc/testsuite/gcc.dg/tree-ssa/20030814-3.c

/* { dg-do compile } */
/* { dg-options "-O1 -fdump-tree-dom3" } */
    
extern void abort (void);

void
foo (int value)
{
  switch (value)
    {
    case 40:
    case 42:
	      if (value != 42)
		abort ();
    case 50:
      blah ();
    }
}

/* There should be one IF conditional.  */
/* { dg-final { scan-tree-dump-times "if " 1 "dom3"} } */