gcc/gcc ChangeLog.lno tree-chrec.c tree-chrec. ...

[spop@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	lno-branch
Changes by:	spop@gcc.gnu.org	2004-05-06 14:36:40

Modified files:
	gcc            : ChangeLog.lno tree-chrec.c tree-chrec.h 
	                 tree-data-ref.c tree-data-ref.h 
	                 tree-vectorizer.c 

Log message:
	* tree-chrec.h (build_chrec_top_type): New.
	* tree-chrec.c (chrec_fold_multiply_ival_cst,
	chrec_fold_multiply_ival_ival, chrec_fold_plus_1): Use
	build_chrec_top_type instead of returning chrec_top.
	
	* tree-data-ref.c (dump_data_dependence_relation): Don't dump
	direction per subscript.
	(analyze_array): Use an extra boolean parameter for the access
	mode: read or write.
	(analyze_array_top, finalize_ddr_dependent): New.
	(compute_direction_vector, set_all_subscripts_to): Removed.
	(initialize_data_dependence_relation): The dependence relation
	is unknown when one of the references base name is NULL_TREE.
	(subscript_dependence_tester, build_classic_dist_vector,
	build_classic_dir_vector, compute_affine_dependence):
	Use finalize_ddr_dependent.
	(build_classic_dir_vector): When one of the directions is
	dir_star, the subscript coupling cannot deduce independence.
	(compute_all_dependences): Renamed compute_rw_wr_ww_dependences.
	(compute_rw_wr_ww_dependences): Don't compute read-read
	relations.  Don't compute the reversed dependence relation.
	(find_data_references_in_loop): Use analyze_array_top when the
	MODIFY_EXPR contains a VUSE/VDEF that is not an ARRAY_REF.
	* tree-data-ref.h (data_reference): Add a field is_read.
	(DR_IS_READ): New.
	(DDR_SUBSCRIPTS_VECTOR_FINALIZE): Removed.
	(analyze_array): Change declaration.
	* tree-vectorizer.c (vect_analyze_data_refs): Adapt the use of
	analyze_array to the new prototype.  Pass in the read or write
	mode.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.lno.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.151&r2=1.1.2.152
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-chrec.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.20&r2=1.1.2.21
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-chrec.h.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.16&r2=1.1.2.17
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-data-ref.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.17&r2=1.1.2.18
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-data-ref.h.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.10&r2=1.1.2.11
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-vectorizer.c.diff?cvsroot=gcc&only_with_tag=lno-branch&r1=1.1.2.29&r2=1.1.2.30