From: Richard Biener <rguenther@suse.de>
Date: Mon, 28 Jul 2025 11:46:18 +0000 (+0200)
Subject: Const correctness for gather-scatter info
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fda0a873df12a46ff4cdc89229b0de6179b465c1;p=thirdparty%2Fgcc.git

Const correctness for gather-scatter info

The following adds const qualification to gather_scatter_info *
parameters for various APIs in the vectorizer.

	* tree-vect-stmts.cc (check_load_store_for_partial_vectors):
	Make *gs_info const.
	(vect_build_one_gather_load_call): Likewise.
	(vect_build_one_scatter_store_call): Likewise.
	(vect_get_gather_scatter_ops): Likewise.
	(vect_get_strided_load_store_ops): Likewise.
---

diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc
index 20a4bb2b3d3..9edc4a8990c 100644
--- a/gcc/tree-vect-stmts.cc
+++ b/gcc/tree-vect-stmts.cc
@@ -1422,7 +1422,7 @@ check_load_store_for_partial_vectors (loop_vec_info loop_vinfo, tree vectype,
 				      int group_size,
 				      vect_memory_access_type
 				      memory_access_type,
-				      gather_scatter_info *gs_info,
+				      const gather_scatter_info *gs_info,
 				      tree scalar_mask,
 				      vec<int> *elsvals = nullptr)
 {
@@ -2771,7 +2771,7 @@ static gimple *
 vect_build_one_gather_load_call (vec_info *vinfo, stmt_vec_info stmt_info,
 				 tree vectype,
 				 gimple_stmt_iterator *gsi,
-				 gather_scatter_info *gs_info,
+				 const gather_scatter_info *gs_info,
 				 tree ptr, tree offset, tree mask)
 {
   tree arglist = TYPE_ARG_TYPES (TREE_TYPE (gs_info->decl));
@@ -2869,7 +2869,7 @@ vect_build_one_gather_load_call (vec_info *vinfo, stmt_vec_info stmt_info,
 static gimple *
 vect_build_one_scatter_store_call (vec_info *vinfo, stmt_vec_info stmt_info,
 				   gimple_stmt_iterator *gsi,
-				   gather_scatter_info *gs_info,
+				   const gather_scatter_info *gs_info,
 				   tree ptr, tree offset, tree oprnd, tree mask)
 {
   tree rettype = TREE_TYPE (TREE_TYPE (gs_info->decl));
@@ -2950,8 +2950,8 @@ vect_build_one_scatter_store_call (vec_info *vinfo, stmt_vec_info stmt_info,
    containing loop.  */
 
 static void
-vect_get_gather_scatter_ops (class loop *loop,
-			     slp_tree slp_node, gather_scatter_info *gs_info,
+vect_get_gather_scatter_ops (class loop *loop, slp_tree slp_node,
+			     const gather_scatter_info *gs_info,
 			     tree *dataref_ptr, vec<tree> *vec_offset)
 {
   gimple_seq stmts = NULL;
@@ -2979,7 +2979,7 @@ static void
 vect_get_strided_load_store_ops (stmt_vec_info stmt_info, tree vectype,
 				 loop_vec_info loop_vinfo,
 				 gimple_stmt_iterator *gsi,
-				 gather_scatter_info *gs_info,
+				 const gather_scatter_info *gs_info,
 				 tree *dataref_bump, tree *vec_offset,
 				 vec_loop_lens *loop_lens)
 {