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r108901 - in /branches/autovect-branch/gcc: Cha...


Author: spop
Date: Wed Dec 21 10:10:25 2005
New Revision: 108901

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=108901
Log:
	* tree-loop-linear.c (gather_interchange_stats): Test for the
	existence of distance vectors only after having checked that there
	is a dependence.  Iterate over all distance vectors of the ddr.
	(linear_transform_loops): Use dump_data_dependence_relation.
	* tree-data-ref.c (print_direction_vector): Pass a lambda_vector 
	and its size in parameters, instead of a data_dependence_relation.
	(dump_data_dependence_relation,	dump_data_dependence_direction): 
	Iterate over all distance and direction vectors of the ddr.
	(initialize_data_dependence_relation): Initialize DDR_DIR_VECTS and
	DDR_DIST_VECTS.
	(build_classic_dist_vector, build_classic_dir_vector): Push a set
	of distance/direction vectors instead of a single one.
	(omega_compute_classic_representations): Don't clear newly allocated 
	dist_v and dir_v.  Push the computed {dist,dir}_v  to 
	DDR_{DIST,DIR}_VECTS.
	(check_ddr): New helper function split from...
	(compute_affine_dependence): ...here.  For comparing the
	results from omega, save the pointer to ddr->{dir,dist}_vects
	and reinitialize it before computing with omega.
	(compute_self_dependence): Push the zero vector initializing 
	DDR_{DIST,DIR}_VECTS.
	* tree-data-ref.h (dir_vects, dist_vects): Replace dir/dist
	lambda_vectors with a vec of lambda_vectors.
	(DDR_DIR_VECT, DDR_DIST_VECT): Redefined as operations on vec.
	(DDR_DIR_VECTS, DDR_DIST_VECTS, DDR_NUM_DIR_VECTS,
	DDR_NUM_DIST_VECTS): New.
	(print_direction_vector): Updated declaration.
	* tree-vect-analyze.c (vect_analyze_data_ref_dependence): Test for
	distance vectors using DDR_NUM_DIST_VECTS.  Iterate over all the
	distance vectors of the ddr.
	* lambda.h: Define a vec of lambda_vector pointers.
	* lambda-code.c (lambda_transform_legal_p): Use DDR_NUM_DIST_VECTS
	for testing whether the data_dependence_relation contains distance
	vectors.  Iterate over all distance vectors of the ddr.
	* tree-vect-transform.c (vect_create_epilog_for_reduction): Initialize
	shift_code.


Modified:
    branches/autovect-branch/gcc/ChangeLog.autovect
    branches/autovect-branch/gcc/lambda-code.c
    branches/autovect-branch/gcc/lambda.h
    branches/autovect-branch/gcc/tree-data-ref.c
    branches/autovect-branch/gcc/tree-data-ref.h
    branches/autovect-branch/gcc/tree-loop-linear.c
    branches/autovect-branch/gcc/tree-vect-analyze.c
    branches/autovect-branch/gcc/tree-vect-transform.c


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