2010-04-13 Richard Guenther <rguenther@suse.de>

	* tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
	Only add RW dependence for dependence distance zero.
	Adjust maximal vectorization factor according to dependences.
	Move alignment handling ...
	(vect_find_same_alignment_drs): ... here.  New function.
	(vect_analyze_data_ref_dependences): Adjust.
	(vect_analyze_data_refs_alignment): Call vect_find_same_alignment_drs.
	(vect_analyze_data_refs): Adjust minimal vectorization factor
	according to data references.
	* tree-vect-loop.c (vect_analyze_loop): Analyze data-ref
	dependences before determining the vectorization factor.
	Analyze alignment after determining the vectorization factor.
	* tree-vect-slp.c ((vect_slp_analyze_bb): Analyze data-ref
	dependences before alignment.
	* tree-vectorizer.h (vect_analyze_data_ref_dependences):
	Adjust prototype.
	(vect_analyze_data_refs): Likewise.
	(MAX_VECTORIZATION_FACTOR): New define.

	* gcc.dg/vect/no-vfa-vect-depend-1.c: Adjust.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@158259 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 34094ab..510b291 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,24 @@
+2010-04-13  Richard Guenther  <rguenther@suse.de>
+
+       * tree-vect-data-refs.c (vect_analyze_data_ref_dependence):
+       Only add RW dependence for dependence distance zero.
+       Adjust maximal vectorization factor according to dependences.
+       Move alignment handling ...
+       (vect_find_same_alignment_drs): ... here.  New function.
+       (vect_analyze_data_ref_dependences): Adjust.
+       (vect_analyze_data_refs_alignment): Call vect_find_same_alignment_drs.
+       (vect_analyze_data_refs): Adjust minimal vectorization factor
+       according to data references.
+       * tree-vect-loop.c (vect_analyze_loop): Analyze data-ref
+       dependences before determining the vectorization factor.
+       Analyze alignment after determining the vectorization factor.
+       * tree-vect-slp.c ((vect_slp_analyze_bb): Analyze data-ref
+       dependences before alignment.
+       * tree-vectorizer.h (vect_analyze_data_ref_dependences):
+       Adjust prototype.
+       (vect_analyze_data_refs): Likewise.
+       (MAX_VECTORIZATION_FACTOR): New define.
+
 2010-04-13  Duncan Sands  <baldrick@free.fr>
 
        * except.h (lang_eh_type_covers): Remove.

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index a409f22..faecd10 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2010-04-13  Richard Guenther  <rguenther@suse.de>
+
+       * gcc.dg/vect/no-vfa-vect-depend-1.c: Adjust.
+
 2010-04-13  Eric Botcazou  <ebotcazou@adacore.com>
 
        * gnat.dg/derived_type1.adb: New test.