gcc/gcc ChangeLog.lno tree-vectorizer.c tree-v ...

[dorit at gcc dot gnu dot org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	lno-branch
Changes by:	dorit@gcc.gnu.org	2004-08-31 14:26:42

Modified files:
	gcc            : ChangeLog.lno tree-vectorizer.c 
	                 tree-vectorizer.h 
	gcc/testsuite  : ChangeLog.lno 
	gcc/testsuite/gcc.dg/vect: vect-33.c vect-44.c vect-48.c 

Log message:
	2004-08-31  Keith Besaw  <kbesaw@us.ibm.com>
	
	* tree-vectorizer.h (struct _loop_vec_info): Add fields ptr_mask,
	may_misalign_stmts, and num_blocks
	* tree-vectorizer.c (vect_compute_data_refs_alignment): Return
	bool so caller knows when no vectorization is possible.
	(vect_compute_data_ref_alignment): Return bool and rearrange code
	so false returns, no vectorization possible, are performed first.
	(vect_analyze_data_refs):
	(vect_create_index_for_array_ref): Replaced with
	vect_create_index_for_vector_ref.
	(vect_create_addr_base_for_vector_ref): New function, contains code from
	vect_create_data_ref so that it may be used by that procedure and
	by vect_create_cond_for_align_checks.
	(vect_create_cond_for_align_checks): New function.
	(new_loop_vec_info): initialize added _loop_vec_info fields.
	(destroy_loop_vec_info): Use/clear added _loop_vec_info fields.
	(vect_create_data_ref): Changed to use vect_create_index_for_vector_ref
	and vect_create_addr_base_for_vector_ref.
	(vect_generate_tmps_on_preheader): Fix comment.
	(vect_transform_loop): Add calls to tree_ssa_loop_version and
	vect_create_cond_for_align_checks to implement the vector loop
	versioning for alignment.
	(vect_analyze_operations, vect_mark_stmts_to_be_vectorized,
	vect_analyze_data_refs): Use num_blocks field from _loop_vec_info.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.lno.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.258&r2=1.1.2.259
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-vectorizer.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.63&r2=1.1.2.64
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-vectorizer.h.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.15&r2=1.1.2.16
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.lno.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.27&r2=1.1.2.28
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/vect/vect-33.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.8.1&r2=1.1.8.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/vect/vect-44.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.8.1&r2=1.1.8.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/vect/vect-48.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.8.1&r2=1.1.8.2