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| author | Richard Biener <rguenther@suse.de> | 2024-09-20 13:35:49 +0200 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2024-09-20 14:46:12 +0200 |
| commit | 4eba48a684b1a1f77aa18b29a1ae58dbdc842b5b (patch) | |
| tree | e48b8142007c15ccd50e786a4618a0de23858247 | |
| parent | 09a52cf036ba8f2fa7b60b18ba58ca17ffa1b146 (diff) | |
| download | gcc-4eba48a684b1a1f77aa18b29a1ae58dbdc842b5b.zip gcc-4eba48a684b1a1f77aa18b29a1ae58dbdc842b5b.tar.gz gcc-4eba48a684b1a1f77aa18b29a1ae58dbdc842b5b.tar.bz2 | |
Handle patterns as SLP roots of only live stmts
gcc.dg/vect/vect-live-2.c shows it's important to handle live but
otherwise unused pattern stmts.
* tree-vect-slp.cc (vect_analyze_slp): Lookup patterns when
discovering from only-live roots.
| -rw-r--r-- | gcc/tree-vect-slp.cc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc index c8af4d3..9c817de 100644 --- a/gcc/tree-vect-slp.cc +++ b/gcc/tree-vect-slp.cc @@ -4723,6 +4723,7 @@ vect_analyze_slp (vec_info *vinfo, unsigned max_tree_size, if (TREE_CODE (def) == SSA_NAME && !virtual_operand_p (def) && (stmt_info = loop_vinfo->lookup_def (def)) + && ((stmt_info = vect_stmt_to_vectorize (stmt_info)), true) && STMT_VINFO_RELEVANT (stmt_info) == vect_used_only_live && STMT_VINFO_LIVE_P (stmt_info) && (STMT_VINFO_DEF_TYPE (stmt_info) == vect_induction_def |