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Re: Constraint modifier for partially overlaping operands

From: Richard Henderson <rth at redhat dot com>
To: Andrew Hutchinson <andrewhutchinson at cox dot net>
Cc: gcc-help at gcc dot gnu dot org, GCC Development <gcc at gcc dot gnu dot org>
Date: Sun, 18 Oct 2009 08:34:00 -0700
Subject: Re: Constraint modifier for partially overlaping operands
References: <4AD927C3.8030102@cox.net> <mcrk4yu5zfg.fsf@dhcp-172-17-9-151.mtv.corp.google.com> <4AD9F874.1040209@redhat.com> <4ADA0092.6040406@cox.net>

On 10/17/2009 10:36 AM, Andrew Hutchinson wrote:

Lowering before combine - in particular causes a lot of code bloat. This
loose all optimization of conditional jumps, shifts etc.

Do you have an example of why this is so for your target?

r~

References:
- Re: Constraint modifier for partially overlaping operands
  - From: Richard Henderson
- Re: Constraint modifier for partially overlaping operands
  - From: Andrew Hutchinson

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