Remove redundant alignment scheme recomputation

The following avoids the recomputation of the alignment scheme
which is already fully determined by get_load_store_type.

2021-10-18  Richard Biener  <rguenther@suse.de>

	* tree-vect-stmts.c (vectorizable_store): Do not recompute
	alignment scheme already determined by get_load_store_type.

diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c
index f5e1941f8ad358903deda54a521a6b4ba8f84b37..0e5e553ffe89ee39adf437e262a3e9dc114a1787 100644 (file)
--- a/gcc/tree-vect-stmts.c
+++ b/gcc/tree-vect-stmts.c
@@ -7904,14 +7904,6 @@ vectorizable_store (vec_info *vinfo,
   auto_vec<tree> dr_chain (group_size);
   oprnds.create (group_size);
 
-  /* Gather-scatter accesses perform only component accesses, alignment
-     is irrelevant for them.  */
-  if (memory_access_type == VMAT_GATHER_SCATTER)
-    alignment_support_scheme = dr_unaligned_supported;
-  else
-    alignment_support_scheme
-      = vect_supportable_dr_alignment (vinfo, first_dr_info, vectype, false);
-
   gcc_assert (alignment_support_scheme);
   vec_loop_masks *loop_masks
     = (loop_vinfo && LOOP_VINFO_FULLY_MASKED_P (loop_vinfo)