| commit | 2fbb03c096abf4100cfefbccbe94db4e8fa09604 | |
| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Wed, 7 Nov 2018 15:01:09 +0000 (7 15:01 +0000) | ||
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Wed, 7 Nov 2018 15:01:09 +0000 (7 15:01 +0000) | ||
| tree | 0c036e96b195e6e1d15aa5359bf49a3c7372370d | treesnapshot (tar.gz zip) |
| parent | 799610660d689444f8f859a4534e15ae9f269f02 | commitdiff |
2018-11-07 Richard Biener <rguenther@suse.de>
PR tree-optimization/87914
* tree-vect-loop.c (vect_is_simple_reduction): Improve detection
of nested cycles.
(vectorizable_reduction): Handle shifts and rotates by dispatching
to vectorizable_shift.
* tree-vect-stmts.c (vect_get_vec_def_for_operand_1): Handle
in-loop uses of vect_nested_cycle defs. Merge cycle and internal
def cases.
(vectorizable_shift): Export and handle being called as
vect_nested_cycle.
(vect_analyze_stmt): Call vectorizable_shift after
vectorizable_reduction.
* tree-vectorizer.h (vectorizable_shift): Declare.
* lib/target-supports.exp (check_effective_target_vect_var_shift): New.
(check_avx2_available): Likewise.
* g++.dg/vect/pr87914.cc: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@265876 138bc75d-0d04-0410-961f-82ee72b054a4
PR tree-optimization/87914
* tree-vect-loop.c (vect_is_simple_reduction): Improve detection
of nested cycles.
(vectorizable_reduction): Handle shifts and rotates by dispatching
to vectorizable_shift.
* tree-vect-stmts.c (vect_get_vec_def_for_operand_1): Handle
in-loop uses of vect_nested_cycle defs. Merge cycle and internal
def cases.
(vectorizable_shift): Export and handle being called as
vect_nested_cycle.
(vect_analyze_stmt): Call vectorizable_shift after
vectorizable_reduction.
* tree-vectorizer.h (vectorizable_shift): Declare.
* lib/target-supports.exp (check_effective_target_vect_var_shift): New.
(check_avx2_available): Likewise.
* g++.dg/vect/pr87914.cc: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@265876 138bc75d-0d04-0410-961f-82ee72b054a4