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[Bug target/21297] [4.0 Regression] buf[i+i]=0 stores buf[i] when -O2


------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-05-04 07:24 -------
Subject: Bug 21297

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-4_0-branch
Changes by:	jakub@gcc.gnu.org	2005-05-04 07:24:34

Modified files:
	gcc            : ChangeLog 
	gcc/testsuite  : ChangeLog 
	gcc/config/i386: i386.c 
Added files:
	gcc/testsuite/gcc.c-torture/execute: 20050502-2.c 

Log message:
	PR target/21297
	* config/i386/i386.c (legitimize_address): When canonicalizing
	ASHIFT into MULT, multiply by 1 << shift_count instead of
	1 << log2 (shift_count).
	
	* gcc.c-torture/execute/20050502-2.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.7592.2.214&r2=2.7592.2.215
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.5084.2.157&r2=1.5084.2.158
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.795.6.6&r2=1.795.6.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20050502-2.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.1.2.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21297


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