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| author | Richard Biener <rguenther@suse.de> | 2023-11-20 15:16:44 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2023-11-21 08:16:57 +0100 |
| commit | c656d268c9dac8b6f710b9bbd399214cb11b3287 (patch) | |
| tree | 1293e3cd79b021f13991647eedf566c37dba2392 /gcc | |
| parent | 7bf1de918608e2d0b5a3ad0923040acb1819d9a5 (diff) | |
| download | gcc-c656d268c9dac8b6f710b9bbd399214cb11b3287.zip gcc-c656d268c9dac8b6f710b9bbd399214cb11b3287.tar.gz gcc-c656d268c9dac8b6f710b9bbd399214cb11b3287.tar.bz2 | |
tree-optimization/111970 - fix issue with SLP of emulated gather/scatter
There's a missed index adjustment for the SLP vector number when
computing the index/data vectors for emulated gather/scatter with SLP.
The following fixes this.
PR tree-optimization/111970
* tree-vect-stmts.cc (vectorizable_load): Fix offset calculation
for SLP gather load.
(vectorizable_store): Likewise for SLP scatter store.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/tree-vect-stmts.cc | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc index 96e4a6cf..bf8c997 100644 --- a/gcc/tree-vect-stmts.cc +++ b/gcc/tree-vect-stmts.cc @@ -9188,7 +9188,8 @@ vectorizable_store (vec_info *vinfo, unsigned HOST_WIDE_INT factor = const_offset_nunits / const_nunits; vec_offset = vec_offsets[(vec_num * j + i) / factor]; - unsigned elt_offset = (j % factor) * const_nunits; + unsigned elt_offset + = ((vec_num * j + i) % factor) * const_nunits; tree idx_type = TREE_TYPE (TREE_TYPE (vec_offset)); tree scale = size_int (gs_info.scale); align = get_object_alignment (DR_REF (first_dr_info->dr)); @@ -11150,7 +11151,8 @@ vectorizable_load (vec_info *vinfo, unsigned HOST_WIDE_INT factor = const_offset_nunits / const_nunits; vec_offset = vec_offsets[(vec_num * j + i) / factor]; - unsigned elt_offset = (j % factor) * const_nunits; + unsigned elt_offset + = ((vec_num * j + i) % factor) * const_nunits; tree idx_type = TREE_TYPE (TREE_TYPE (vec_offset)); tree scale = size_int (gs_info.scale); align = get_object_alignment (DR_REF (first_dr_info->dr)); |