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Re: [RFT/RFA] Fix AIX fallout from PR/19653 patch

From: David Edelsohn <dje at watson dot ibm dot com>
To: Geoff Keating <geoffk at geoffk dot org>, Paolo Bonzini <paolo dot bonzini at lu dot unisi dot ch>, Roger Sayle <roger at eyesopen dot com>
Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Wed, 05 Apr 2006 23:38:22 -0400
Subject: Re: [RFT/RFA] Fix AIX fallout from PR/19653 patch
References: <44329CF2.3030802@lu.unisi.ch> <200604041752.k34HqV731816@makai.watson.ibm.com> <6D728FE2-A83B-453E-AA6D-66A2B1481C7A@geoffk.org>

	Paolo's patch, this suggestion, and limiting the SYMBOL_REF test
to just legitimize_reload_address all work.  However, GCC now produces
worse code with many more memory accesses for FP constants on PowerPC.

	Was the performance impact of the original patch ever tested on
anything other than x86?  Reload changes can have significant performance
impact on all GCC architectures and this patch should have been tested
much more extensively.

David

Follow-Ups:
- Re: [RFT/RFA] Fix AIX fallout from PR/19653 patch
  - From: Roger Sayle
- Re: [RFT/RFA] Fix AIX fallout from PR/19653 patch
  - From: Dale Johannesen

References:
- [RFT/RFA] Fix AIX fallout from PR/19653 patch
  - From: Paolo Bonzini
- Re: [RFT/RFA] Fix AIX fallout from PR/19653 patch
  - From: David Edelsohn
- Re: [RFT/RFA] Fix AIX fallout from PR/19653 patch
  - From: Geoff Keating

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