Method and system for optimizing address calculations

The disclosed systems, structures, and methods are directed to optimizing address calculations in a computer. This is achieved in a compiler that identifies an address calculation in code that is being compiled and transforms the code by splitting the address calculation into a first portion in which an offset is determined and a second portion, in which the offset is combined with a base pointer to generate an address. The address and the base pointer have a first bit-length, and the offset has a second bit-length shorter than the first bit-length. The offset is determined using an operation performed at the second bit-length. In some implementations the first bit-length is 64 bits and the second bit-length is 32 bits.