* [PATCH] tree-optimization/101112 - fix pattern stmt def lookup in SLP reassoc
@ 2021-06-18 11:43 Richard Biener
0 siblings, 0 replies; only message in thread
From: Richard Biener @ 2021-06-18 11:43 UTC (permalink / raw)
To: gcc-patches
This fixes the lookup of a pattern stmt def operand.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.
2021-06-18 Richard Biener <rguenther@suse.de>
PR tree-optimization/101112
* tree-vect-slp.c (vect_slp_linearize_chain): Fix condition
to lookup a pattern stmt def.
---
gcc/tree-vect-slp.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c
index 0c1f85beeb2..f9c33c0bb14 100644
--- a/gcc/tree-vect-slp.c
+++ b/gcc/tree-vect-slp.c
@@ -1482,13 +1482,9 @@ vect_slp_linearize_chain (vec_info *vinfo,
stmt_vec_info def_stmt_info;
bool res = vect_is_simple_use (op, vinfo, &dt, &def_stmt_info);
gcc_assert (res);
- if (dt == vect_internal_def)
- {
- stmt_vec_info orig_def_stmt_info = def_stmt_info;
- def_stmt_info = vect_stmt_to_vectorize (def_stmt_info);
- if (def_stmt_info != orig_def_stmt_info)
- op = gimple_get_lhs (def_stmt_info->stmt);
- }
+ if (dt == vect_internal_def
+ && is_pattern_stmt_p (def_stmt_info))
+ op = gimple_get_lhs (def_stmt_info->stmt);
gimple *use_stmt;
use_operand_p use_p;
if (dt == vect_internal_def
--
2.26.2
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2021-06-18 11:43 [PATCH] tree-optimization/101112 - fix pattern stmt def lookup in SLP reassoc Richard Biener
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