/* { dg-do compile } *//* { dg-options "-O1 -fdump-tree-dom3" } */     extern void abort (void);oof (){  int live_head;  int * live = &live_head;  if (live)   bitmap_clear (live);}foo(int n){  int *space = (int *)__builtin_alloca (n);  if (space == 0)    abort ();  else    bar (space);}                                                                               /* There should be no IF conditionals.  *//* { dg-final { scan-tree-dump-times "if " 0 "dom3"} } *//* { dg-final { cleanup-tree-dump "dom3" } } */