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[Bug target/30961] [4.1/4.2 regression] redundant reg/mem stores/moves
- From: "hjl at lucon dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 2 Aug 2007 14:20:58 -0000
- Subject: [Bug target/30961] [4.1/4.2 regression] redundant reg/mem stores/moves
- References: <bug-30961-7667@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #17 from hjl at lucon dot org 2007-08-02 14:20 -------
(In reply to comment #16)
> (In reply to comment #15)
> > (In reply to comment #14)
> > > (In reply to comment #13)
> > > > Created an attachment (id=13550)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13550&action=view) [edit]
> > > > An experimental patch
> > > >
> > > > This patch works for the testcase.
> > >
> > > i've applied this patch to 4.2.1 and compile testcases:
> > >
> > > convert/m32/m64 look fine. load/m32/m64 still look unoptimal.
> > >
> >
> > Gcc 4.3 works:
>
> naturally but its not even been released yet.
> users awaiting regression fixes for released compilers ;)
>
Load is fixed by dataflow merge.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30961