Index: gcc/optabs.c
===================================================================
--- gcc/optabs.c        (revision 162526)
+++ gcc/optabs.c        (working copy)
@@ -511,14 +511,20 @@
 
   oprnd0 = ops->op0;
   tmode0 = TYPE_MODE (TREE_TYPE (oprnd0));
-  widen_pattern_optab =
-    optab_for_tree_code (ops->code, TREE_TYPE (oprnd0), optab_default);
   if (ops->code == WIDEN_MULT_PLUS_EXPR
       || ops->code == WIDEN_MULT_MINUS_EXPR)
-    icode = (int) optab_handler (widen_pattern_optab,
+    {
+      widen_pattern_optab =
+       optab_for_tree_code (ops->code, TREE_TYPE (ops->op2),
optab_default);
+      icode = (int) optab_handler (widen_pattern_optab,
                                 TYPE_MODE (TREE_TYPE (ops->op2)));
+    }
   else
-    icode = (int) optab_handler (widen_pattern_optab, tmode0);
+    {
+      widen_pattern_optab =
+       optab_for_tree_code (ops->code, TREE_TYPE (oprnd0),
optab_default);
+      icode = (int) optab_handler (widen_pattern_optab, tmode0);
+    }
   gcc_assert (icode != CODE_FOR_nothing);