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| author | Richard Biener <rguenther@suse.de> | 2024-05-21 19:15:33 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2024-05-22 13:18:28 +0200 |
| commit | 3507ab1b018a68500e49fa9f1de7caa0f1b53dda (patch) | |
| tree | f47bc83293131f218c89f2a95e5592207ffdbfa9 /gcc | |
| parent | 31e9bae0ea5e5413abfa3ca9050e66cc6760553e (diff) | |
| download | gcc-3507ab1b018a68500e49fa9f1de7caa0f1b53dda.zip gcc-3507ab1b018a68500e49fa9f1de7caa0f1b53dda.tar.gz gcc-3507ab1b018a68500e49fa9f1de7caa0f1b53dda.tar.bz2 | |
Fix mixed input kind permute optimization
When change_vec_perm_layout runs into a permute combining two
nodes where one is invariant and one internal the partition of
one input can be -1 but the other might not be. The following
supports this case by simply ignoring inputs with input partiton -1.
I'm not sure this is correct but it avoids ICEing when accessing
that partitions layout for gcc.target/i386/pr98928.c with the
change to avoid splitting store dataref groups during SLP discovery.
* tree-vect-slp.cc (change_vec_perm_layout): Ignore an
input partition of -1.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/tree-vect-slp.cc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc index 43f2c15..3f8209b 100644 --- a/gcc/tree-vect-slp.cc +++ b/gcc/tree-vect-slp.cc @@ -4640,6 +4640,8 @@ change_vec_perm_layout (slp_tree node, lane_permutation_t &perm, { slp_tree in_node = SLP_TREE_CHILDREN (node)[entry.first]; unsigned int in_partition_i = m_vertices[in_node->vertex].partition; + if (in_partition_i == -1u) + continue; this_in_layout_i = m_partitions[in_partition_i].layout; } if (this_in_layout_i > 0) |