--- a/src/jdk/nashorn/internal/codegen/BranchOptimizer.java	Wed Oct 16 10:12:22 2013 +0200
+++ b/src/jdk/nashorn/internal/codegen/BranchOptimizer.java	Wed Oct 16 10:15:55 2013 +0200
@@ -84,7 +84,6 @@
     private void branchOptimizer(final BinaryNode binaryNode, final Label label, final boolean state) {
         final Expression lhs = binaryNode.lhs();
         final Expression rhs = binaryNode.rhs();
-        Type widest = Type.widest(lhs.getType(), rhs.getType());
 
         switch (binaryNode.tokenType()) {
         case AND:
@@ -113,33 +112,33 @@
 
         case EQ:
         case EQ_STRICT:
-            codegen.loadBinaryOperands(lhs, rhs, widest);
+            codegen.loadBinaryOperands(lhs, rhs, Type.widest(lhs.getType(), rhs.getType()));
             method.conditionalJump(state ? EQ : NE, true, label);
             return;
 
         case NE:
         case NE_STRICT:
-            codegen.loadBinaryOperands(lhs, rhs, widest);
+            codegen.loadBinaryOperands(lhs, rhs, Type.widest(lhs.getType(), rhs.getType()));
             method.conditionalJump(state ? NE : EQ, true, label);
             return;
 
         case GE:
-            codegen.loadBinaryOperands(lhs, rhs, widest);
+            codegen.loadBinaryOperands(lhs, rhs, Type.widest(lhs.getType(), rhs.getType()));
             method.conditionalJump(state ? GE : LT, !state, label);
             return;
 
         case GT:
-            codegen.loadBinaryOperands(lhs, rhs, widest);
+            codegen.loadBinaryOperands(lhs, rhs, Type.widest(lhs.getType(), rhs.getType()));
             method.conditionalJump(state ? GT : LE, !state, label);
             return;
 
         case LE:
-            codegen.loadBinaryOperands(lhs, rhs, widest);
+            codegen.loadBinaryOperands(lhs, rhs, Type.widest(lhs.getType(), rhs.getType()));
             method.conditionalJump(state ? LE : GT, state, label);
             return;
 
         case LT:
-            codegen.loadBinaryOperands(lhs, rhs, widest);
+            codegen.loadBinaryOperands(lhs, rhs, Type.widest(lhs.getType(), rhs.getType()));
             method.conditionalJump(state ? LT : GE, state, label);
             return;
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/script/basic/JDK-8026693.js	Wed Oct 16 10:15:55 2013 +0200
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ * 
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ * 
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ * 
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ * 
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * JDK-8026693: getType() called on DISCARD node
+ *
+ * @test
+ * @run
+ */
+
+function f() {
+    if(x, y) z;
+}