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[Bug middle-end/18029] an xor of a single bit bitfield is inefficient
- From: "cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 2 Mar 2005 16:05:35 -0000
- Subject: [Bug middle-end/18029] an xor of a single bit bitfield is inefficient
- References: <20041016025707.18029.kazu@cs.umass.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-03-02 16:05 -------
Subject: Bug 18029
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: kazu@gcc.gnu.org 2005-03-02 16:05:00
Modified files:
gcc : ChangeLog expr.c
Log message:
PR middle-end/18029 and PR middle-end/18030
* expr.c (optimize_bitfield_assignment_op): Add a special case
to handle BIT_IOR_EXPR and BIT_XOR_EXPR.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.7632&r2=2.7633
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/expr.c.diff?cvsroot=gcc&r1=1.778&r2=1.779
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18029