optimization/8746

[ebotcazou@gcc.gnu.org]

The following reply was made to PR optimization/8746; it has been noted by GNATS.

From: ebotcazou@gcc.gnu.org
To: gcc-gnats@gcc.gnu.org
Cc:  
Subject: optimization/8746
Date: 25 Mar 2003 10:30:30 -0000

 CVSROOT:	/cvs/gcc
 Module name:	gcc
 Branch: 	gcc-3_3-branch
 Changes by:	ebotcazou@gcc.gnu.org	2003-03-25 10:30:30
 
 Modified files:
 	gcc            : ChangeLog 
 	gcc/config/i386: i386.md 
 	gcc/testsuite  : ChangeLog 
 Added files:
 	gcc/testsuite/gcc.dg: i386-signbit-1.c i386-signbit-2.c 
 	                      i386-signbit-3.c 
 
 Log message:
 	PR optimization/8746
 	* config/i386/i386.md (and promoting splitters): Disable HImode to
 	SImode promoting when the sign bit matters and is not preserved, or
 	when TARGET_FAST_PREFIX is true. Disable promoting when optimizing
 	for size.
 
 Patches:
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.16114.2.359&r2=1.16114.2.360
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.md.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.404.2.12&r2=1.404.2.13
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.2261.2.119&r2=1.2261.2.120
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/i386-signbit-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=NONE&r2=1.2.2.1
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/i386-signbit-2.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=NONE&r2=1.1.2.1
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/i386-signbit-3.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=NONE&r2=1.1.2.1