gcc/testsuite/gcc.dg/tree-ssa/20030807-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -ftree-vrp -fdump-tree-dom2" } */
   3 /* { dg-require-effective-target alloca } */
   4
   5 extern void abort (void);
   6 extern void bitmap_clear (int *);
   7 extern void bar (int *);
   8
   9 void
  10 oof ()
  11 {
  12   int live_head;
  13   int * live = &live_head;
  14
  15   if (live)
  16    bitmap_clear (live);
  17 }
  18
  19 void
  20 foo(int n)
  21 {
  22   int *space = (int *)__builtin_alloca (n);
  23
  24   if (space == 0)
  25     abort ();
  26   else
  27     bar (space);
  28 }
  29
  30
  31 /* There should be no IF conditionals.  */
  32 /* { dg-final { scan-tree-dump-times "if " 0 "dom2" } } */