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Re: [PATCH] Fix PR optimization/10157
- From: Dale Johannesen <dalej at apple dot com>
- To: Eric Botcazou <ebotcazou at libertysurf dot fr>
- Cc: Dale Johannesen <dalej at apple dot com>, gcc-patches at gcc dot gnu dot org
- Date: Wed, 2 Apr 2003 09:44:36 -0800
- Subject: Re: [PATCH] Fix PR optimization/10157
On Wednesday, April 2, 2003, at 02:00 AM, Eric Botcazou wrote:
This is a regression from the 3.3 branch, present on mainline on Sparc.
The improved loop invariant hoisting machinery
http://gcc.gnu.org/ml/gcc-patches/2003-02/msg02300.html
produces invalid CCmode moves on Sparc, which doesn't feature the
"movcc"
pattern.
My understanding from the doc is that Sparc should be setting
AVOID_CCMODE_COPIES if it doesn't support this pattern.
Can we get a consensus on this? If my understanding is wrong
I think the doc needs to be changed.