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| author | Richard Biener <rguenther@suse.de> | 2015-12-17 12:34:27 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2015-12-17 12:34:27 +0000 |
| commit | 8ee38286c3f26eeacf79090d5a75643a2a1c0697 (patch) | |
| tree | 491852cb5e643b01414fc5a7b4ad464524b141eb /gcc/tree-vect-data-refs.c | |
| parent | a30c5ca4c15956697b2c78460be0a34811a2106e (diff) | |
| download | gcc-8ee38286c3f26eeacf79090d5a75643a2a1c0697.zip gcc-8ee38286c3f26eeacf79090d5a75643a2a1c0697.tar.gz gcc-8ee38286c3f26eeacf79090d5a75643a2a1c0697.tar.bz2 | |
re PR tree-optimization/68951 (ICE in vect_update_misalignment_for_peel)
2015-12-17 Richard Biener <rguenther@suse.de>
PR tree-optimization/68951
* tree-vect-data-refs.c (vect_peeling_hash_get_lowest_cost):
Ignore strided non-group accesses.
* gcc.dg/torture/pr68951.c: New testcase.
From-SVN: r231754
Diffstat (limited to 'gcc/tree-vect-data-refs.c')
| -rw-r--r-- | gcc/tree-vect-data-refs.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c index 4c566c8..b039ff2 100644 --- a/gcc/tree-vect-data-refs.c +++ b/gcc/tree-vect-data-refs.c @@ -1215,6 +1215,12 @@ vect_peeling_hash_get_lowest_cost (_vect_peel_info **slot, && GROUP_FIRST_ELEMENT (stmt_info) != stmt) continue; + /* Strided accesses perform only component accesses, alignment is + irrelevant for them. */ + if (STMT_VINFO_STRIDED_P (stmt_info) + && !STMT_VINFO_GROUPED_ACCESS (stmt_info)) + continue; + save_misalignment = DR_MISALIGNMENT (dr); vect_update_misalignment_for_peel (dr, elem->dr, elem->npeel); vect_get_data_access_cost (dr, &inside_cost, &outside_cost, |