gcc/gcc ChangeLog.autovect tree-vectorizer.c c ...

[dorit@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	autovect-branch
Changes by:	dorit@gcc.gnu.org	2004-12-06 21:36:08

Modified files:
	gcc            : ChangeLog.autovect tree-vectorizer.c 
	gcc/config/rs6000: rs6000.c 

Log message:
	2004-12-06  Keith Besaw  <kbesaw@us.ibm.com>
	
	* tree-vectorizer.c (update_vuses_to_preheader): New, fixup VUSEs for
	loads added to loop preheader block.
	(vect_create_data_ref_ptr): Remove code which sets the bitmap
	vars_to_rename.
	(vectorizable_store): Call copy_virtual_operands to copy V_MAY_DEFs
	from array element store to vector store and then update the statements
	defining the virtual SSA_NAMES.
	(vectorizable_load): Call copy_virtual_operands to copy VUSEs from
	array element load to vector load.  Call update_vuses_to_preheader for
	loads inserted into loop preheader block.
	(vect_do_peeling_for_alignment): Add need_loop_closed_rewrite parm.
	(vect_transform_loop): Add need_loop_closed_rewrite_parm.
	(vectorize_loops): Eliminate call to rewrite_into_ssa, only call
	rewrite_into_loop_closed_ssa if tree_duplicate_loop_to_edge has been
	called in vect_do_peeling_for_alignment or vect_transform_loop.
	* rs6000.c (altivect_init_builtins): Add the "const" attribute to
	__builtin_altivec_mask_for_store and
	__builtin_altivec_mask_for_load.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.autovect.diff?cvsroot=gcc&only_with_tag=autovect-branch&r1=1.1.2.5&r2=1.1.2.6
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-vectorizer.c.diff?cvsroot=gcc&only_with_tag=autovect-branch&r1=2.25.2.2&r2=2.25.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/rs6000/rs6000.c.diff?cvsroot=gcc&only_with_tag=autovect-branch&r1=1.739&r2=1.739.2.1