[PATCH] tree-optimization/96978 - fix fallout of BB vectorization of live stmts
Richard Biener
rguenther@suse.de
Wed Sep 9 07:49:14 GMT 2020
This avoids looking at STMT_VINFO_LIVE_P when vectorizing BBs.
Bootstrap / regtest running on x86_64-unknown-linux-gnu.
Richard.
2020-09-09 Richard Biener <rguenther@suse.de>
PR tree-optimization/96978
* tree-vect-stmts.c (vectorizable_condition): Do not
look at STMT_VINFO_LIVE_P for BB vectorization.
(vectorizable_comparison): Likewise.
---
gcc/tree-vect-stmts.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c
index a7ffe72378f..065d1bf3caf 100644
--- a/gcc/tree-vect-stmts.c
+++ b/gcc/tree-vect-stmts.c
@@ -9855,7 +9855,7 @@ vectorizable_condition (vec_info *vinfo,
return false;
/* FORNOW: only supported as part of a reduction. */
- if (STMT_VINFO_LIVE_P (stmt_info))
+ if (loop_vinfo && STMT_VINFO_LIVE_P (stmt_info))
{
if (dump_enabled_p ())
dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
@@ -10328,7 +10328,7 @@ vectorizable_comparison (vec_info *vinfo,
if (STMT_VINFO_DEF_TYPE (stmt_info) != vect_internal_def)
return false;
- if (STMT_VINFO_LIVE_P (stmt_info))
+ if (loop_vinfo && STMT_VINFO_LIVE_P (stmt_info))
{
if (dump_enabled_p ())
dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
--
2.26.2
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