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From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/29922] [4.3 Regression] [Linux] ICE in insert_into_preds_of_block
Date: Mon, 27 Nov 2006 07:52:00 -0000 [thread overview]
Message-ID: <20061127075156.17100.qmail@sourceware.org> (raw)
In-Reply-To: <bug-29922-12686@http.gcc.gnu.org/bugzilla/>
------- Comment #10 from pinskia at gcc dot gnu dot org 2006-11-27 07:51 -------
(In reply to comment #9)
> Though the good question is why we have those PHIs still there even though they
> don't do anything except produce a copy. All the copyprop passes as far as I
> can tell skip them because they are virtual.
The reason why they still exist is because they have a loop variant on the
arugment which causes us to reject it during copyprop (and during dom). I have
a patch to remove the conditional on virtual operands but I don't know if this
is enough to make sure we never produce this type of PHIs again.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29922
next prev parent reply other threads:[~2006-11-27 7:52 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-21 1:41 [Bug c/29922] New: gcc-4.3-20061118 failed to compile linux-2.6.19-rc6-git2 happyarch at gmail dot com
2006-11-21 2:00 ` [Bug tree-optimization/29922] " pinskia at gcc dot gnu dot org
2006-11-21 3:17 ` happyarch at gmail dot com
2006-11-21 3:22 ` pinskia at gcc dot gnu dot org
2006-11-21 3:33 ` happyarch at gmail dot com
2006-11-21 7:04 ` happyarch at gmail dot com
2006-11-21 7:10 ` pinskia at gcc dot gnu dot org
2006-11-21 7:48 ` pinskia at gcc dot gnu dot org
2006-11-21 7:50 ` pinskia at gcc dot gnu dot org
2006-11-25 9:13 ` [Bug tree-optimization/29922] [4.3 Regression] [Linux] ICE in insert_into_preds_of_block pinskia at gcc dot gnu dot org
2006-11-27 7:52 ` pinskia at gcc dot gnu dot org [this message]
2006-11-27 8:06 ` pinskia at gcc dot gnu dot org
2006-11-27 17:23 ` Andrew Pinski
2006-11-27 17:23 ` pinskia at gmail dot com
2006-12-15 22:09 ` pinskia at gcc dot gnu dot org
2006-12-18 9:33 ` pinskia at gcc dot gnu dot org
2006-12-19 21:56 ` kargl at gcc dot gnu dot org
2006-12-20 2:55 ` Daniel Berlin
2006-12-20 2:55 ` dberlin at dberlin dot org
2007-01-11 18:28 ` pinskia at gcc dot gnu dot org
2007-02-09 19:00 ` pinskia at gcc dot gnu dot org
2007-03-05 10:13 ` tbm at cyrius dot com
2007-03-09 17:55 ` dberlin at gcc dot gnu dot org
2007-03-09 19:28 ` tbm at cyrius dot com
2007-03-09 19:34 ` tbm at cyrius dot com
2007-03-10 8:48 ` Jean-pierre dot vial at wanadoo dot fr
2007-03-17 23:08 ` dberlin at gcc dot gnu dot org
2007-03-17 23:17 ` tbm at cyrius dot com
2007-03-17 23:19 ` dberlin at gcc dot gnu dot org
2007-04-28 4:19 ` kargl at gcc dot gnu dot org
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