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| author | Richard Biener <rguenther@suse.de> | 2024-09-23 10:30:32 +0200 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2024-09-23 12:52:12 +0200 |
| commit | 2c04f175de4f3985d783511662375d52f2cf4ad8 (patch) | |
| tree | c3ff6b608b54b11717dbf7a04c78489a5219145d | |
| parent | e97c75d668bacd8a2e901b819e00156f6e9f4c6c (diff) | |
| download | gcc-2c04f175de4f3985d783511662375d52f2cf4ad8.zip gcc-2c04f175de4f3985d783511662375d52f2cf4ad8.tar.gz gcc-2c04f175de4f3985d783511662375d52f2cf4ad8.tar.bz2 | |
tree-optimization/116810 - out-of-bound access to matches[]
The following makes sure to apply forced splitting of groups for
firced single-lane SLP only when the group being analyzed has more
than one lane. This avoids an out-of-bound access to matches[].
PR tree-optimization/116810
* tree-vect-slp.cc (vect_build_slp_instance): Onlu force
splitting for group_size > 1.
| -rw-r--r-- | gcc/tree-vect-slp.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc index 7161492..ab49bb0 100644 --- a/gcc/tree-vect-slp.cc +++ b/gcc/tree-vect-slp.cc @@ -3715,7 +3715,7 @@ vect_build_slp_instance (vec_info *vinfo, unsigned i; slp_tree node = NULL; - if (force_single_lane) + if (group_size > 1 && force_single_lane) { matches[0] = true; matches[1] = false; |