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From: "bonzini at gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/39886] [4.5 Regression] ICE in purge_dead_edges, at cfgrtl.c:2274
Date: Wed, 01 Jul 2009 15:47:00 -0000 [thread overview]
Message-ID: <20090701154710.31716.qmail@sourceware.org> (raw)
In-Reply-To: <bug-39886-12544@http.gcc.gnu.org/bugzilla/>
------- Comment #3 from bonzini at gnu dot org 2009-07-01 15:47 -------
Honza, this worked for me:
Index: combine.c
===================================================================
--- combine.c (revision 149135)
+++ combine.c (working copy)
@@ -2173,12 +2173,13 @@
update_cfg_for_uncondjump (rtx insn)
{
basic_block bb = BLOCK_FOR_INSN (insn);
+ bool at_end = (BB_END (bb) == insn);
- if (BB_END (bb) == insn)
+ if (at_end)
purge_dead_edges (bb);
delete_insn (insn);
- if (EDGE_COUNT (bb->succs) == 1)
+ if (at_end && EDGE_COUNT (bb->succs) == 1)
single_succ_edge (bb)->flags |= EDGE_FALLTHRU;
}
Would you mind seeing if your patch was the same?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39886
next prev parent reply other threads:[~2009-07-01 15:47 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-24 15:01 [Bug c/39886] New: " regehr at cs dot utah dot edu
2009-04-24 15:41 ` [Bug c/39886] [4.5 Regression] " rguenth at gcc dot gnu dot org
2009-05-05 15:58 ` [Bug middle-end/39886] " mmitchel at gcc dot gnu dot org
2009-05-09 18:30 ` hubicka at ucw dot cz
2009-07-01 15:47 ` bonzini at gnu dot org [this message]
2009-07-02 10:05 ` hubicka at ucw dot cz
2009-07-11 21:56 ` d dot g dot gorbachev at gmail dot com
2009-07-11 21:56 ` d dot g dot gorbachev at gmail dot com
2009-09-03 15:10 ` fxcoudert at gcc dot gnu dot org
2009-09-19 17:29 ` [Bug middle-end/39886] [4.5 Regression] Revision 145283 caused " hjl dot tools at gmail dot com
2009-09-20 9:24 ` ktietz at gcc dot gnu dot org
2009-09-20 17:26 ` [Bug rtl-optimization/39886] " ktietz at gcc dot gnu dot org
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