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| author | Richard Sandiford <richard.sandiford@linaro.org> | 2018-01-13 18:01:42 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2018-01-13 18:01:42 +0000 |
| commit | ab2fc782509f934ef0cc22c31d743fcb63063c1b (patch) | |
| tree | 6f7286ba241ca431dd03a3f8e051838488b4c200 /gcc/tree-vectorizer.h | |
| parent | bfaa08b7ba1b00bbcc00bb76735c6b3547f5830f (diff) | |
| download | gcc-ab2fc782509f934ef0cc22c31d743fcb63063c1b.zip gcc-ab2fc782509f934ef0cc22c31d743fcb63063c1b.tar.gz gcc-ab2fc782509f934ef0cc22c31d743fcb63063c1b.tar.bz2 | |
Use gather loads for strided accesses
This patch tries to use gather loads for strided accesses,
rather than falling back to VMAT_ELEMENTWISE.
2018-01-13 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* tree-vectorizer.h (vect_create_data_ref_ptr): Take an extra
optional tree argument.
* tree-vect-data-refs.c (vect_check_gather_scatter): Check for
null target hooks.
(vect_create_data_ref_ptr): Take the iv_step as an optional argument,
but continue to use the current value as a fallback.
(bump_vector_ptr): Use operand_equal_p rather than tree_int_cst_compare
to compare the updates.
* tree-vect-stmts.c (vect_use_strided_gather_scatters_p): New function.
(get_load_store_type): Use it when handling a strided access.
(vect_get_strided_load_store_ops): New function.
(vect_get_data_ptr_increment): Likewise.
(vectorizable_load): Handle strided gather loads. Always pass
a step to vect_create_data_ref_ptr and bump_vector_ptr.
gcc/testsuite/
* gcc.target/aarch64/sve/strided_load_1.c: New test.
* gcc.target/aarch64/sve/strided_load_2.c: Likewise.
* gcc.target/aarch64/sve/strided_load_3.c: Likewise.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r256641
Diffstat (limited to 'gcc/tree-vectorizer.h')
| -rw-r--r-- | gcc/tree-vectorizer.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/tree-vectorizer.h b/gcc/tree-vectorizer.h index a9ccdfd..c661578 100644 --- a/gcc/tree-vectorizer.h +++ b/gcc/tree-vectorizer.h @@ -1462,7 +1462,7 @@ extern void vect_record_base_alignments (vec_info *); extern tree vect_create_data_ref_ptr (gimple *, tree, struct loop *, tree, tree *, gimple_stmt_iterator *, gimple **, bool, bool *, - tree = NULL_TREE); + tree = NULL_TREE, tree = NULL_TREE); extern tree bump_vector_ptr (tree, gimple *, gimple_stmt_iterator *, gimple *, tree); extern tree vect_create_destination_var (tree, tree); |