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Re: Unnecessary PRE optimization

From: Paolo Bonzini <bonzini at gnu dot org>
To: Bingfeng Mei <bmei at broadcom dot com>
Cc: Steven Bosscher <stevenb dot gcc at gmail dot com>, "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>, "dberlin at dberlin dot org" <dberlin at dberlin dot org>
Date: Wed, 23 Dec 2009 17:41:19 +0100
Subject: Re: Unnecessary PRE optimization
References: <7FB04A5C213E9943A72EE127DB74F0AD93D8DE261E@SJEXCHCCR02.corp.ad.broadcom.com> <571f6b510912230401p59e79a74gb4fe6dfc13c0617d@mail.gmail.com> <4B321AE6.30009@gnu.org> <7FB04A5C213E9943A72EE127DB74F0AD93D8DE263F@SJEXCHCCR02.corp.ad.broadcom.com> <4B323096.20104@gnu.org> <7FB04A5C213E9943A72EE127DB74F0AD93D8DE2657@SJEXCHCCR02.corp.ad.broadcom.com>

On 12/23/2009 04:19 PM, Bingfeng Mei wrote:

It seems that just commenting out this check in fwprop.c should work.

Yes, but it would pessimize x86.

Paolo

References:
- Unnecessary PRE optimization
  - From: Bingfeng Mei
- Re: Unnecessary PRE optimization
  - From: Steven Bosscher
- Re: Unnecessary PRE optimization
  - From: Paolo Bonzini
- RE: Unnecessary PRE optimization
  - From: Bingfeng Mei
- Re: Unnecessary PRE optimization
  - From: Paolo Bonzini
- RE: Unnecessary PRE optimization
  - From: Bingfeng Mei

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