[Bug optimization/11210] optimizer drops conditional with typecast from signed to unsigned char

[cvs-commit at gcc dot gnu dot org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11210



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-06-26 10:37 -------
Subject: Bug 11210

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	ebotcazou@gcc.gnu.org	2003-06-26 10:37:35

Modified files:
	gcc            : ChangeLog fold-const.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.dg: 20030626-1.c 

Log message:
	PR optimization/11210
	* fold-const (decode_field_reference): Strip only NOPs that
	don't affect the sign.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.172&r2=2.173
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fold-const.c.diff?cvsroot=gcc&r1=1.266&r2=1.267
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.2801&r2=1.2802
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/20030626-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1