gcc/gcc ChangeLog.hammer config/rs6000/altivec ...

[hpenner@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	hammer-3_3-branch
Changes by:	hpenner@gcc.gnu.org	2004-03-30 09:01:24

Modified files:
	gcc            : ChangeLog.hammer 
	gcc/config/rs6000: altivec.md rs6000-protos.h rs6000.c 

Log message:
	Backport from mainline:
	* config/rs6000/rs6000.c (output_vec_const_move):
	Find all cases of EASY_VECTOR_15_ADD_SELF.
	(easy_vector_constant_add_self): Accept
	all vector constant loadable by vsplt* and vadd*.
	(easy_vector_same): Use easy_vector_splat_const.
	(easy_vector_const): Use easy_vector_splat_const.
	(easy_vector_splat_const): New function.
	(gen_easy_vector_constant_add_self): New function.
	
	* config/rs6000/rs6000-protos.c (gen_easy_vector_constant_add_self):
	New prototype.
	
	* config/rs6000/altivec.md (movv4si splitter): Change to
	emit move insn with halfed vector constant.
	(*movv8hi splitter): Likewise.
	(*movv16qi splitter): Likewise.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.hammer.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.1.2.381&r2=1.1.2.382
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/rs6000/altivec.md.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.1.18.4&r2=1.1.18.5
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/rs6000/rs6000-protos.h.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.47.2.8&r2=1.47.2.9
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/rs6000/rs6000.c.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.397.2.34&r2=1.397.2.35