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[Bug middle-end/55263] [4.8 Regression] ICE: pre_and_rev_post_order_compute, at cfganal.c:875 with -O -fgcse-after-reload -fnon-call-exceptions
- From: "steven at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 10 Nov 2012 23:59:39 +0000
- Subject: [Bug middle-end/55263] [4.8 Regression] ICE: pre_and_rev_post_order_compute, at cfganal.c:875 with -O -fgcse-after-reload -fnon-call-exceptions
- Auto-submitted: auto-generated
- References: <bug-55263-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55263
Steven Bosscher <steven at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
CC|steven at gcc dot gnu.org |
AssignedTo|unassigned at gcc dot |steven at gcc dot gnu.org
|gnu.org |
--- Comment #2 from Steven Bosscher <steven at gcc dot gnu.org> 2012-11-10 23:59:39 UTC ---
Index: postreload.c
===================================================================
--- postreload.c (revision 193396)
+++ postreload.c (working copy)
@@ -2289,8 +2289,9 @@ rest_of_handle_postreload (void)
reload_cse_regs (get_insns ());
/* Reload_cse_regs can eliminate potentially-trapping MEMs.
Remove any EH edges associated with them. */
- if (cfun->can_throw_non_call_exceptions)
- purge_all_dead_edges ();
+ if (cfun->can_throw_non_call_exceptions
+ && purge_all_dead_edges ())
+ cleanup_cfg (0);
return 0;
}