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Re: unreviewed patch: opt/7409

From: Richard Henderson <rth at redhat dot com>
To: Ulrich Weigand <weigand at immd1 dot informatik dot uni-erlangen dot de>
Cc: hpenner at de dot ibm dot com, uweigand at de dot ibm dot com, gcc-patches at gcc dot gnu dot org
Date: Mon, 14 Oct 2002 10:49:22 -0700
Subject: Re: unreviewed patch: opt/7409
References: <20021008210745.GM2225@redhat.com> <200210082240.AAA25798@faui11.informatik.uni-erlangen.de>

On Wed, Oct 09, 2002 at 12:40:30AM +0200, Ulrich Weigand wrote:
> However, maybe it would be better to leave single_usage alone 
> and simply mark all registers in CALL_INSN_FUNCTION_USAGE as
> 'may_not_optimize'?  Most of them will be marked such anyway
> as they are usually call-clobbered.

This sounds better.


r~

References:
- Re: unreviewed patch: opt/7409
  - From: Richard Henderson
- Re: unreviewed patch: opt/7409
  - From: Ulrich Weigand

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