diff options
| author | Richard Biener <rguenther@suse.de> | 2023-12-19 09:58:03 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2023-12-19 13:31:30 +0100 |
| commit | aa2a48984c3d8c7a6a6da10d924e030b141b44cd (patch) | |
| tree | 30a3f68084bc53d86ace049a2b0d414d56d2bf21 /gcc | |
| parent | 7e1c440bc84c02e67b1cf338579a3274cdc337e0 (diff) | |
| download | gcc-aa2a48984c3d8c7a6a6da10d924e030b141b44cd.zip gcc-aa2a48984c3d8c7a6a6da10d924e030b141b44cd.tar.gz gcc-aa2a48984c3d8c7a6a6da10d924e030b141b44cd.tar.bz2 | |
tree-optimization/113073 - amend PR112736 fix
The PR112736 testcase fails on RISC-V because the aligned exception
uses the wrong check. The alignment support scheme can be
dr_aligned even when the access isn't aligned to the vector size
but some targets are happy with element alignment. The following
fixes that.
PR tree-optimization/113073
* tree-vect-stmts.cc (vectorizable_load): Properly ensure
to exempt only vector-size aligned overreads.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/tree-vect-stmts.cc | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc index fc6923c..e9ff728 100644 --- a/gcc/tree-vect-stmts.cc +++ b/gcc/tree-vect-stmts.cc @@ -11476,7 +11476,9 @@ vectorizable_load (vec_info *vinfo, - (group_size * vf - gap), nunits)) /* DR will be unused. */ ltype = NULL_TREE; - else if (alignment_support_scheme == dr_aligned) + else if (known_ge (vect_align, + tree_to_poly_uint64 + (TYPE_SIZE_UNIT (vectype)))) /* Aligned access to excess elements is OK if at least one element is accessed in the scalar loop. */ |