r125172 - in /trunk/gcc: ChangeLog Makefile.in ...

[rakdver@gcc.gnu.org]

Author: rakdver
Date: Tue May 29 21:55:47 2007
New Revision: 125172

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=125172
Log:
	* tree-vectorizer.h (DR_MISALIGNMENT): Cast aux to integer.
	(SET_DR_MISALIGNMENT): New.
	* tree-vect-analyze.c (vect_compute_data_ref_alignment,
	vect_update_misalignment_for_peel, vect_enhance_data_refs_alignment):
	Use SET_DR_MISALIGNMENT.
	* tree-predcom.c (split_data_refs_to_components): Cast dr->aux from
	pointer.
	* tree-data-ref.c (create_data_ref, compute_all_dependences,
	find_loop_nest): Export.
	* tree-data-ref.h (struct data_reference): Change aux field to pointer.
	(create_data_ref, compute_all_dependences, find_loop_nest): Declare.
	* tree-ssa-loop-prefetch.c: Include tree-data-ref.h.
	(L1_CACHE_SIZE_BYTES, L2_CACHE_SIZE_BYTES, NONTEMPORAL_FRACTION):
	New macros.
	(struct mem_ref): Add field reuse_distance.
	(find_or_create_group, record_ref): Use XNEW instead of xcalloc.
	Initialize reuse_distance field.
	(issue_prefetch_ref): Select temporality of prefetch according to
	reuse_distance.
	(volume_of_references, volume_of_dist_vector, add_subscript_strides,
	self_reuse_distance, determine_loop_nest_reuse): New functions.
	(loop_prefetch_arrays): Call determine_loop_nest_reuse.
	(tree_ssa_prefetch_arrays): Dump L2 cache size.
	* Makefile.in (tree-ssa-loop-prefetch.o): Add TREE_DATA_REF_H
	dependency.

	* gcc.dg/tree-ssa/prefetch-6.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/prefetch-6.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/Makefile.in
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-data-ref.c
    trunk/gcc/tree-data-ref.h
    trunk/gcc/tree-predcom.c
    trunk/gcc/tree-ssa-loop-prefetch.c
    trunk/gcc/tree-vect-analyze.c
    trunk/gcc/tree-vectorizer.h