i386.c (ix86_builtin_vectorization_cost): Scale vec_construct cost by vec_stmt_cost.

2015-04-21  Richard Biener  <rguenther@suse.de>

	* config/i386/i386.c (ix86_builtin_vectorization_cost): Scale
	vec_construct cost by vec_stmt_cost.

From-SVN: r222265

gcc/ChangeLog

 2015-04-21  Richard Biener  <rguenther@suse.de>
 
+	* config/i386/i386.c (ix86_builtin_vectorization_cost): Scale
+	vec_construct cost by vec_stmt_cost.
+
+2015-04-21  Richard Biener  <rguenther@suse.de>
+
 	* cfghooks.h (create_basic_block): Replace with two overloads
 	for RTL and GIMPLE.
 	(split_block): Likewise.

gcc/config/i386/i386.c

@@ -46705,7 +46705,7 @@ ix86_builtin_vectorization_cost (enum vect_cost_for_stmt type_of_cost,
 
       case vec_construct:
 	elements = TYPE_VECTOR_SUBPARTS (vectype);
-	return elements / 2 + 1;
+	return ix86_cost->vec_stmt_cost * (elements / 2 + 1);
 
       default:
         gcc_unreachable ();