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[Bug rtl-optimization/23837] [4.0 regression] Wrong code with REG_NO_CONFLICT notes (caused by combine)
- From: "joern dot rennecke at st dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 19 Dec 2005 13:34:35 -0000
- Subject: [Bug rtl-optimization/23837] [4.0 regression] Wrong code with REG_NO_CONFLICT notes (caused by combine)
- References: <bug-23837-5724@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #38 from joern dot rennecke at st dot com 2005-12-19 13:34 -------
Subject: Re: [4.0 regression] Wrong code with REG_NO_CONFLICT notes (caused by
combine)
steven at gcc dot gnu dot org wrote:
>------- Comment #37 from steven at gcc dot gnu dot org 2005-12-19 12:36 -------
>That would be a different bug, and the fix would still be to not have a
>no-conflict block to begin with.
>
>
No, it's the same bug. combine rendering REG_NO_CONFLICT notes invalid.
And you seem to advocate removing REG_NO_CLONFLICT notes from gcc
altogether here.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23837