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Re: [patch] combine.c: Fix rtl-optimization/27477.
- From: Roger Sayle <roger at eyesopen dot com>
- To: Kazu Hirata <kazu at codesourcery dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Wed, 17 May 2006 14:42:49 -0600 (MDT)
- Subject: Re: [patch] combine.c: Fix rtl-optimization/27477.
Hi Kazu,
On Wed, 17 May 2006, Kazu Hirata wrote:
> 2006-05-17 Kazu Hirata <kazu@codesourcery.com>
>
> PR rtl-optimization/27477
> * combine.c (try_combine): Don't split a parallel consisting
> of two sets into two individual sets if both sets reference
> cc0.
This is OK for mainline. Thanks. This is a reasonable constraint
on combine's insn splitting.
However there does appear to be something else very odd going on
in the PR27477 failure. Notice in comment #6, which final
instruction is the "jump_insn" and which is the regular "insn"!?
Roger
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