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[Bug tree-optimization/46787] Does not vectorize loop with load from scalar variable
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 30 Jun 2011 13:28:08 +0000
- Subject: [Bug tree-optimization/46787] Does not vectorize loop with load from scalar variable
- Auto-submitted: auto-generated
- References: <bug-46787-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46787
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-06-30 13:27:47 UTC ---
Author: rguenth
Date: Thu Jun 30 13:27:43 2011
New Revision: 175704
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175704
Log:
2011-06-30 Richard Guenther <rguenther@suse.de>
PR tree-optimization/46787
* tree-data-ref.c (dr_address_invariant_p): Remove.
(find_data_references_in_stmt): Invariant accesses are ok now.
* tree-vect-stmts.c (vectorizable_load): Handle invariant
loads.
* tree-vect-data-refs.c (vect_analyze_data_ref_access): Allow
invariant loads.
* gcc.dg/vect/vect-121.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/vect/vect-121.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-data-ref.c
trunk/gcc/tree-vect-data-refs.c
trunk/gcc/tree-vect-stmts.c