1. A method for executing floating point instructions in a vector execution unit, wherein execution of the floating point instruction performs a floating point operation on at least one operand identified by the instruction, wherein the operand is a denormal value, the method comprising: prenormalizing the denormal value in a first processing lane of the vector execution unit to generate a prenormalized value; and performing at least a portion of the floating point operation using the prenormalized value in a dot product adder of the vector execution unit.