Re: [PATCH] Fix tree if-conversion crash

[Devang Patel <dpatel at apple dot com>]

On Nov 12, 2004, at 3:56 PM, Diego Novillo wrote:

> On Fri, 2004-11-12 at 18:51, Devang Patel wrote:
> > > 	* tree-if-conv.c (clean_predicate_lists): Use loop header
> > > 	and latch directly.
> Looks OK.

Thanks. I need to update gcc_assert check because it is possible to get 
loop with only one nodes. In that case, loop->header and loop->latch 
both points to same basic block.

-
Devang

Index: tree-if-conv.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/tree-if-conv.c,v
retrieving revision 2.17
diff -Idpatel.pbxuser -c -3 -p -r2.17 tree-if-conv.c
*** tree-if-conv.c      14 Nov 2004 04:08:05 -0000      2.17
--- tree-if-conv.c      15 Nov 2004 23:00:10 -0000
*************** static void
*** 658,664 ****
  clean_predicate_lists (struct loop *loop)
  {
  #ifdef ENABLE_CHECKING
!   gcc_assert (loop->num_nodes == 2);
  #endif
    loop->header->aux = NULL;
    loop->latch->aux = NULL;
--- 658,664 ----
  clean_predicate_lists (struct loop *loop)
  {
  #ifdef ENABLE_CHECKING
!   gcc_assert (loop->num_nodes == 2 || loop->num_nodes == 1);
  #endif
    loop->header->aux = NULL;
    loop->latch->aux = NULL;