* [PATCH] move permute optimization to optimize-slp
@ 2020-09-29 12:43 Richard Biener
0 siblings, 0 replies; only message in thread
From: Richard Biener @ 2020-09-29 12:43 UTC (permalink / raw)
To: gcc-patches
This moves optimizing permutes of SLP reductions to vect_optimize_slp,
eliding the global slp_loads array.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.
2020-09-29 Richard Biener <rguenther@suse.de>
* tree-vect-slp.c (vect_analyze_slp): Move SLP reduction
re-arrangement and SLP graph load gathering...
(vect_optimize_slp): ... here.
* tree-vectorizer.h (vec_info::slp_loads): Remove.
---
gcc/tree-vect-slp.c | 19 ++++++++++---------
gcc/tree-vectorizer.h | 1 -
2 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c
index c44fd396bf0..8de24802538 100644
--- a/gcc/tree-vect-slp.c
+++ b/gcc/tree-vect-slp.c
@@ -2486,8 +2486,15 @@ vect_analyze_slp (vec_info *vinfo, unsigned max_tree_size)
vect_free_slp_tree ((*it).second);
delete bst_map;
+ return opt_result::success ();
+}
+
+void
+vect_optimize_slp (vec_info *vinfo)
+{
/* Optimize permutations in SLP reductions. */
slp_instance instance;
+ unsigned i;
FOR_EACH_VEC_ELT (vinfo->slp_instances, i, instance)
{
slp_tree node = SLP_INSTANCE_TREE (instance);
@@ -2500,20 +2507,14 @@ vect_analyze_slp (vec_info *vinfo, unsigned max_tree_size)
}
/* Gather all loads in the SLP graph. */
+ auto_vec<slp_tree> slp_loads;
hash_set<slp_tree> visited;
FOR_EACH_VEC_ELT (vinfo->slp_instances, i, instance)
- vect_gather_slp_loads (vinfo->slp_loads, SLP_INSTANCE_TREE (instance),
+ vect_gather_slp_loads (slp_loads, SLP_INSTANCE_TREE (instance),
visited);
- return opt_result::success ();
-}
-
-void
-vect_optimize_slp (vec_info *vinfo)
-{
slp_tree node;
- unsigned i;
- FOR_EACH_VEC_ELT (vinfo->slp_loads, i, node)
+ FOR_EACH_VEC_ELT (slp_loads, i, node)
{
if (!SLP_TREE_LOAD_PERMUTATION (node).exists ())
continue;
diff --git a/gcc/tree-vectorizer.h b/gcc/tree-vectorizer.h
index b7fa6bc8d2f..e62f1ccee8d 100644
--- a/gcc/tree-vectorizer.h
+++ b/gcc/tree-vectorizer.h
@@ -359,7 +359,6 @@ public:
/* The SLP graph. */
auto_vec<slp_instance> slp_instances;
- auto_vec<slp_tree> slp_loads;
/* Maps base addresses to an innermost_loop_behavior that gives the maximum
known alignment for that base. */
--
2.26.2
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