--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/ConditionalNode.java	Mon Nov 30 16:41:10 2015 -0800
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/ConditionalNode.java	Mon Nov 30 22:05:12 2015 -0800
@@ -152,6 +152,27 @@
             return trueValue();
         }
 
+        if (condition instanceof IntegerLessThanNode && trueValue().stamp() instanceof IntegerStamp) {
+            /*
+             * Convert a conditional add ((x < 0) ? (x + y) : x) into (x + (y & (x >> (bits - 1))))
+             * to avoid the test.
+             */
+            IntegerLessThanNode lt = (IntegerLessThanNode) condition;
+            if (lt.getY().isConstant() && lt.getY().asConstant().isDefaultForKind()) {
+                if (falseValue() == lt.getX()) {
+                    if (trueValue() instanceof AddNode) {
+                        AddNode add = (AddNode) trueValue();
+                        if (add.getX() == falseValue()) {
+                            int bits = ((IntegerStamp) trueValue().stamp()).getBits();
+                            ValueNode shift = new RightShiftNode(lt.getX(), ConstantNode.forIntegerBits(bits, bits - 1));
+                            ValueNode and = new AndNode(shift, add.getY());
+                            return new AddNode(add.getX(), and);
+                        }
+                    }
+                }
+            }
+        }
+
         return this;
     }