tree-vectorizer.h (vect_transform_reduction): Declare.

2019-10-02  Richard Biener  <rguenther@suse.de>

	* tree-vectorizer.h (vect_transform_reduction): Declare.
	* tree-vect-stmts.c (vect_transform_stmt): Use it.
	* tree-vect-loop.c (vectorizable_reduction): Split out reduction
	stmt transform to ...
	(vect_transform_reduction): ... this.

From-SVN: r276452

gcc/ChangeLog

+2019-10-02  Richard Biener  <rguenther@suse.de>
+
+	* tree-vectorizer.h (vect_transform_reduction): Declare.
+	* tree-vect-stmts.c (vect_transform_stmt): Use it.
+	* tree-vect-loop.c (vectorizable_reduction): Split out reduction
+	stmt transform to ...
+	(vect_transform_reduction): ... this.
+
 2019-10-02  Tobias Burnus  <tobias@codesourcery.com>
 
 	* omp-low.c (lower_omp_target): Dereference optional argument

gcc/tree-vect-stmts.c

@@ -10819,8 +10819,7 @@ vect_transform_stmt (stmt_vec_info stmt_info, gimple_stmt_iterator *gsi,
       break;
 
     case reduc_vec_info_type:
-      done = vectorizable_reduction (stmt_info, gsi, &vec_stmt, slp_node,
-				     slp_node_instance, NULL);
+      done = vect_transform_reduction (stmt_info, gsi, &vec_stmt, slp_node);
       gcc_assert (done);
       break;
 

gcc/tree-vectorizer.h

@@ -1659,6 +1659,8 @@ extern bool vectorizable_reduction (stmt_vec_info, gimple_stmt_iterator *,
 extern bool vectorizable_induction (stmt_vec_info, gimple_stmt_iterator *,
 				    stmt_vec_info *, slp_tree,
 				    stmt_vector_for_cost *);
+extern bool vect_transform_reduction (stmt_vec_info, gimple_stmt_iterator *,
+				      stmt_vec_info *, slp_tree);
 extern bool vect_transform_cycle_phi (stmt_vec_info, stmt_vec_info *,
 				      slp_tree, slp_instance);
 extern bool vectorizable_lc_phi (stmt_vec_info, stmt_vec_info *, slp_tree);