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Re: SSE scalar move paterns

To: Jan Hubicka <jh at suse dot cz>
Subject: Re: SSE scalar move paterns
From: Richard Henderson <rth at redhat dot com>
Date: Tue, 13 Feb 2001 02:14:56 -0800
Cc: gcc-patches at gcc dot gnu dot org, patches at x86-64 dot org
References: <20010212231516.B11491@atrey.karlin.mff.cuni.cz> <20010212154441.A15438@redhat.com> <20010213102913.D17317@atrey.karlin.mff.cuni.cz>

On Tue, Feb 13, 2001 at 10:29:13AM +0100, Jan Hubicka wrote:
> So perhaps in such patch I can rename all 'x's to 'y's and vice versa
> if there is no code that depends on constraints being used in current way.

Well, there may be some set of code that uses inline assembly
and constraints in gcc3, and in previous Cygnus releases.

I'm not sure how extremely much we have to care about the later,
but certainly the former is worrisome.  If it's going to change,
it has to be soon, and on the branch as well.

r~

References:
- SSE scalar move paterns
  - From: Jan Hubicka
- Re: SSE scalar move paterns
  - From: Richard Henderson
- Re: SSE scalar move paterns
  - From: Jan Hubicka

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