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r190639 - in /branches/google/gcc-4_7/gcc: Chan...
- From: tejohnson at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Fri, 24 Aug 2012 04:21:59 -0000
- Subject: r190639 - in /branches/google/gcc-4_7/gcc: Chan...
Author: tejohnson
Date: Fri Aug 24 04:21:58 2012
New Revision: 190639
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190639
Log:
2012-08-23 Teresa Johnson <tejohnson@google.com>
Revert r189866 in preparation for committing a narrower fix for the issue
that yields better performance.
r189866 was:
2012-07-25 Teresa Johnson <tejohnson@google.com>
Backport the following patches from trunk to ensure that
"andw $0xff, $reg" is always converted to a zero extend
to avoid LCP stalls on core2/corei7 (b/6615073):
r184891, r186839, r186979, r186993, r188630, r188634, r188648
Modified:
branches/google/gcc-4_7/gcc/ChangeLog.google-4_7
branches/google/gcc-4_7/gcc/config/i386/constraints.md
branches/google/gcc-4_7/gcc/config/i386/i386.md