re PR tree-optimization/88828 (Inefficient update of the first element of vector registers)

2019-05-15  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/88828
	* tree-ssa-forwprop.c (simplify_vector_constructor): Fix
	bogus check.

From-SVN: r271204

gcc/ChangeLog

+2019-05-15  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/88828
+	* tree-ssa-forwprop.c (simplify_vector_constructor): Fix
+	bogus check.
+
 2019-05-14  Richard Biener  <rguenther@suse.de>
 
 	* tree-pretty-print.c (dump_generic_node): Dump VIEW_CONVERT_EXPR

gcc/tree-ssa-forwprop.c

@@ -2102,7 +2102,7 @@ simplify_vector_constructor (gimple_stmt_iterator *gsi)
 		break;
 	    }
 	  /* Found a suitable vector element.  */
-	  if (j <= 2)
+	  if (j < 2)
 	    {
 	      orig[j] = ref;
 	      if (j)