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| author | Richard Biener <rguenther@suse.de> | 2020-11-04 11:20:17 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2020-11-04 12:41:14 +0100 |
| commit | 1e9f339d946b8296e3785bec77e03d71b487d689 (patch) | |
| tree | c32fb9049dc664ee82ba8ee144996f8d6bcf05d2 /gcc/tree-vect-loop.c | |
| parent | 3e190757fa332d327bee27495f37beb01155cfab (diff) | |
| download | gcc-1e9f339d946b8296e3785bec77e03d71b487d689.zip gcc-1e9f339d946b8296e3785bec77e03d71b487d689.tar.gz gcc-1e9f339d946b8296e3785bec77e03d71b487d689.tar.bz2 | |
tree-optimization/97709 - set abnormal flag when vectorizing live lanes
This properly sets the abnormal flag when vectorizing live lanes
when the original scalar was live across an abnormal edge.
2020-11-04 Richard Biener <rguenther@suse.de>
PR tree-optimization/97709
* tree-vect-loop.c (vectorizable_live_operation): Set
SSA_NAME_OCCURS_IN_ABNORMAL_PHI when necessary.
* gcc.dg/vect/bb-slp-pr97709.c: New testcase.
Diffstat (limited to 'gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc/tree-vect-loop.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index c09aa39..6cb2286 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -8568,6 +8568,9 @@ vectorizable_live_operation (vec_info *vinfo, gimple_seq stmts = NULL; new_tree = force_gimple_operand (fold_convert (lhs_type, new_tree), &stmts, true, NULL_TREE); + if (TREE_CODE (new_tree) == SSA_NAME + && SSA_NAME_OCCURS_IN_ABNORMAL_PHI (lhs)) + SSA_NAME_OCCURS_IN_ABNORMAL_PHI (new_tree) = 1; if (is_a <gphi *> (vec_stmt)) { gimple_stmt_iterator si = gsi_after_labels (gimple_bb (vec_stmt)); |