revert: re PR tree-optimization/91790 (ICE: verify_ssa failed (error: definition…

revert: re PR tree-optimization/91790 (ICE: verify_ssa failed (error: definition in block 2 follows the use))

2019-11-21  Richard Biener  <rguenther@suse.de>

	Revert
	2019-09-17  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/91790
	* tree-vect-stmts.c (vectorizable_load): For BB vectorization
	use the correct DR for setting up realignment.

From-SVN: r278544

gcc/ChangeLog

 2019-11-21  Richard Biener  <rguenther@suse.de>
 
+	Revert
+	2019-09-17  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/91790
+	* tree-vect-stmts.c (vectorizable_load): For BB vectorization
+	use the correct DR for setting up realignment.
+
+2019-11-21  Richard Biener  <rguenther@suse.de>
+
 	* tree-ssa-structalias.c (equiv_class_hasher): Change to nofree.
 	(equiv_class_obstack): New.
 	(equiv_class_lookup_or_add): Allocate from equiv_class_obstack.

gcc/tree-vect-stmts.c

@@ -9272,9 +9272,7 @@ vectorizable_load (stmt_vec_info stmt_info, gimple_stmt_iterator *gsi,
        || alignment_support_scheme == dr_explicit_realign)
       && !compute_in_loop)
     {
-      msq = vect_setup_realignment (first_stmt_info_for_drptr
-				    ? first_stmt_info_for_drptr
-				    : first_stmt_info, gsi, &realignment_token,
+      msq = vect_setup_realignment (first_stmt_info, gsi, &realignment_token,
 				    alignment_support_scheme, NULL_TREE,
 				    &at_loop);
       if (alignment_support_scheme == dr_explicit_realign_optimized)