gcc/gcc ChangeLog config/i386/i386.md testsuit ...

[ebotcazou@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_2-branch
Changes by:	ebotcazou@gcc.gnu.org	2003-03-25 10:42:14

Modified files:
	gcc            : ChangeLog 
	gcc/config/i386: i386.md 
	gcc/testsuite  : ChangeLog 
	gcc/testsuite/gcc.dg: i386-signbit-1.c 
Added files:
	gcc/testsuite/gcc.dg: 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.
	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_2-branch&r1=1.13152.2.657.2.277&r2=1.13152.2.657.2.278
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.md.diff?cvsroot=gcc&only_with_tag=gcc-3_2-branch&r1=1.339.2.13.2.9&r2=1.339.2.13.2.10
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_2-branch&r1=1.1672.2.166.2.116&r2=1.1672.2.166.2.117
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_2-branch&r1=NONE&r2=1.1.4.1
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_2-branch&r1=NONE&r2=1.1.4.1
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_2-branch&r1=1.1.2.1&r2=1.1.2.2