diff options
| author | Richard Sandiford <richard.sandiford@arm.com> | 2020-01-10 14:56:20 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2020-01-10 14:56:20 +0000 |
| commit | ac190fcea1bebf87a2c8c3963548a0e5272c42ec (patch) | |
| tree | 0652422c6b4fa21ff8ff9b88f65df7593d91e028 /gcc/tree-vect-loop.c | |
| parent | 2fb672a2574004a1e77c8ba83af539673f5cf659 (diff) | |
| download | gcc-ac190fcea1bebf87a2c8c3963548a0e5272c42ec.zip gcc-ac190fcea1bebf87a2c8c3963548a0e5272c42ec.tar.gz gcc-ac190fcea1bebf87a2c8c3963548a0e5272c42ec.tar.bz2 | |
Fix gather/scatter check when updating a vector epilogue loop
update_epilogue_loop_vinfo applies SSA renmaing to the DR_REF of a
gather or scatter, so that vect_check_gather_scatter continues to work.
However, we sometimes also rely on vect_check_gather_scatter when
using gathers and scatters to implement strided accesses.
This showed up on existing tests when testing with fixed-length
-msve-vector-bits=128.
2020-01-10 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* tree-vect-loop.c (update_epilogue_loop_vinfo): Update DR_REF
for any type of gather or scatter, including strided accesses.
From-SVN: r280111
Diffstat (limited to 'gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc/tree-vect-loop.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index 596eafc..1fa3ba6 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -8451,7 +8451,7 @@ update_epilogue_loop_vinfo (class loop *epilogue, tree advance) updated offset we set using ADVANCE. Instead we have to make sure the reference in the data references point to the corresponding copy of the original in the epilogue. */ - if (STMT_VINFO_GATHER_SCATTER_P (stmt_vinfo)) + if (STMT_VINFO_MEMORY_ACCESS_TYPE (stmt_vinfo) == VMAT_GATHER_SCATTER) { DR_REF (dr) = simplify_replace_tree (DR_REF (dr), NULL_TREE, NULL_TREE, |