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From: "rearnsha@arm.com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/11052] [3.3 regression] [arm] noce_process_if_block() can loose REG_INC notes
Date: Tue, 03 Jun 2003 16:52:00 -0000 [thread overview]
Message-ID: <20030603165225.1174.qmail@sources.redhat.com> (raw)
In-Reply-To: <20030601111629.11052.debian-gcc@lists.debian.org>
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11052
------- Additional Comments From rearnsha@arm.com 2003-06-03 16:52 -------
Subject: Re: [3.3 regression] [arm] ICE (segfault)
compiling xfree86
> On Tue, Jun 03, 2003 at 04:13:09PM +0100, Richard Earnshaw wrote:
> > 1) Don't allow this transformation if the insns have REG_INC notes (this
> > is overkill, but safe).
>
> This I'd recommend for 3.3, if it's affected.
>
> > 2) Copy any REG_INC notes from *one* of the source insns.
>
> This shouldn't be hard, I wouldn't expect.
>
> > 3) Something else I've not thought of... :-)
>
> Build a new REG_INC note after scanning for autoinc codes?
>
Is it guaranteed that noce_emit_move_insn will emit exactly one insn?
R.
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next prev parent reply other threads:[~2003-06-03 16:52 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-01 11:16 [Bug target/11052] New: [3.3 regression] [arm] ICE (segfault) compiling xfree86 debian-gcc@lists.debian.org
2003-06-01 11:17 ` [Bug target/11052] " debian-gcc@lists.debian.org
2003-06-02 1:00 ` pinskia@physics.uc.edu
2003-06-02 10:18 ` dhazeghi@yahoo.com
2003-06-02 10:19 ` dhazeghi@yahoo.com
2003-06-02 14:44 ` bangerth@dealii.org
2003-06-02 17:09 ` rearnsha@arm.com
2003-06-02 17:34 ` dhazeghi@yahoo.com
2003-06-03 12:25 ` rearnsha@arm.com
2003-06-03 15:13 ` rearnsha@arm.com
2003-06-03 16:12 ` [Bug target/11052] [3.3 regression] [arm] noce_process_if_block() can loose REG_INC notes rth@redhat.com
2003-06-03 16:52 ` rearnsha@arm.com [this message]
2003-06-03 17:52 ` dhazeghi@yahoo.com
2003-06-03 22:24 ` rth@redhat.com
2003-06-06 17:45 ` rearnsha@gcc.gnu.org
2003-06-17 15:58 ` drow@mvista.com
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