Fix 0 != CODE_FOR_nothing thinko

        * expr.c (store_constructor): Initialize icode with CODE_FOR_nothing.
        * tree-vect-stmts.c (vectorizable_operation): Use LAST_INSN_CODE for
        dummy != CODE_FOR_nothing value.

From-SVN: r189672

gcc/ChangeLog

+2012-07-19  Richard Henderson  <rth@redhat.com>
+
+	* expr.c (store_constructor): Initialize icode with CODE_FOR_nothing.
+	* tree-vect-stmts.c (vectorizable_operation): Use LAST_INSN_CODE for
+	dummy != CODE_FOR_nothing value.
+
 2012-07-19  Uros Bizjak  <ubizjak@gmail.com>
 
 	* doc/tm.texi.in (MODE_AFTER): Add entity as the first macro argument.

gcc/expr.c

@@ -6130,7 +6130,7 @@ store_constructor (tree exp, rtx target, int cleared, HOST_WIDE_INT size)
 	constructor_elt *ce;
 	int i;
 	int need_to_clear;
-	int icode = 0;
+	int icode = CODE_FOR_nothing;
 	tree elttype = TREE_TYPE (type);
 	int elt_size = tree_low_cst (TYPE_SIZE (elttype), 1);
 	enum machine_mode eltmode = TYPE_MODE (elttype);

gcc/tree-vect-stmts.c

@@ -3531,7 +3531,7 @@ vectorizable_operation (gimple stmt, gimple_stmt_iterator *gsi,
   if (code == MULT_HIGHPART_EXPR)
     {
       if (can_mult_highpart_p (vec_mode, TYPE_UNSIGNED (vectype)))
-	icode = 0;
+	icode = LAST_INSN_CODE;
       else
 	icode = CODE_FOR_nothing;
     }