1. A computer program product for facilitating processing within a computing environment, the computer program product comprising: a computer readable storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method comprising: obtaining an instruction to be executed, the instruction to perform a comparison of a first value and a second value; and executing the instruction, the executing including: determining, based on a control of the instruction, a compare function to be performed, wherein the compare function is one of a plurality of different types of compare functions configured for the instruction, the plurality of different types of compare functions including a plurality of techniques for at least one type of compare operation, and wherein the compare function has a plurality of options for comparison; selecting, from the plurality of options for the compare function, a compare option to be used to compare the first value and the second value, the compare option selected based on the first value and the second value; comparing the first value and the second value using the compare option to obtain a result, the result specific for the compare option selected for the compare function indicated by the control of the instruction; and placing the result in a select location, the result to be used in processing within the computing environment.