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gcc/gcc ChangeLog simplify-rtx.c expr.c testsu ...
- From: jakub at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: 30 Jun 2004 10:09:56 -0000
- Subject: gcc/gcc ChangeLog simplify-rtx.c expr.c testsu ...
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: jakub@gcc.gnu.org 2004-06-30 10:09:55
Modified files:
gcc : ChangeLog simplify-rtx.c expr.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.c-torture/execute: 20040629-1.c
Log message:
* simplify-rtx.c (simplify_binary_operation): Simplify
((A & N) + B) & M -> (A + B) & M if M is pow2 minus 1 constant and
N has at least all bits in M set as well.
PR tree-optimization/15310
* expr.c (expand_assignment): Optimize += or -= on a bit field in
most significant bits.
* gcc.c-torture/execute/20040629-1.c: New test.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.4205&r2=2.4206
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/simplify-rtx.c.diff?cvsroot=gcc&r1=1.194&r2=1.195
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/expr.c.diff?cvsroot=gcc&r1=1.657&r2=1.658
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3919&r2=1.3920
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20040629-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1