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Re: [testcase] optimization/5076: gcc3 regression: yet another strength reduction bug
- From: Richard Henderson <rth at redhat dot com>
- To: Franz Sirl <Franz dot Sirl-kernel at lauterbach dot com>
- Cc: Gwenole Beauchesne <gbeauchesne at mandrakesoft dot com>, nobody at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org, gcc-bugs at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org, clm at redhat dot com
- Date: Thu, 3 Jan 2002 13:18:39 -0800
- Subject: Re: [testcase] optimization/5076: gcc3 regression: yet another strength reduction bug
- References: <Pine.LNX.4.33L2.0201022024120.22051-100000@thalys.mandrakesoft.com> <200201032133.52714@enzo.bigblue.local>
On Thu, Jan 03, 2002 at 09:47:02PM +0100, Franz Sirl wrote:
> I'm suggesting the attached bandaid fix for 3.1 and gcc-3_0-branch
[...]
> * unroll.c (unroll_loop): Don't try to unroll loops with a
> NOTE_INSN_LOOP_CONT.
> (ujump_to_loop_cont): Delete.
All for loops have a NOTE_INSN_LOOP_CONT. We can do better than this.
r~