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[patch] Backport fixes for PR54146 to GCC 4.7

From: Steven Bosscher <stevenb dot gcc at gmail dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Wed, 22 Aug 2012 00:57:09 +0200
Subject: [patch] Backport fixes for PR54146 to GCC 4.7

Hello,

This patch back-ports most of the changes made to resolve the worst of
PR54146 on trunk to GCC 4.7. This PR is basically an accumulation of
various compiler speed and memory usage regressions, and all fixes are
almost trivial, so I think it's fair and safe to back-port these
changes.

Bootstrapped&tested (gcc-4_7-branch, of course) on
x86_64-unknown-linux-gnu, and on powerpc64-unknown-linux-gnu. OK?

Ciao!
Steven

Attachment: PR54146_gcc47.diff
Description: Binary data

Follow-Ups:
- Re: [patch] Backport fixes for PR54146 to GCC 4.7
  - From: Richard Guenther

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