Method and system for optimizing address calculations

A method of optimizing address calculations in a compiler being executed on a computer in which the compiler comprises an address calculation optimizer incorporating a fast-address check module and an address calculation separation module, the method comprising:

• identifying, by the compiler, an address calculation in code that is being compiled;
• determining, in the fast-address check module of the compiler, whether to enable a fast-address mode that permits use of the address calculation separation module of the compiler based on a predetermined offset bit length limit;
• and
• in response to the fast-address check module determining that the compiler is capable of enabling the fast-address mode of the compiler, transforming the code in the address calculation separation module by splitting the address calculation into an offset calculation in which an offset is determined and an application of a function in which the offset is combined with a base pointer to generate an address,
• wherein the address and the base pointer have a first bit-length, the offset has a second bit-length shorter than the first bit-length, and the offset is determined using an operation performed at the second bit-length.

A non-transitory computer-readable medium comprising instructions that, when executed by a processor, cause the processor to:

• identify an address calculation in code being compiled in a compiler that comprises a fast-address check module and an address calculation separation module;
• determine, in the fast-address check module of the compiler, whether to enable a fast-address mode that permits use of the address calculation separation module of the compiler based on a predetermined offset bit length limit;
• in response to the fast-address check module determining that the compiler is capable of enabling the fast-address mode, the address calculation separation module of the compiler splits the address calculation into an offset calculation in which a 32-bit offset is determined and an application of a function in which the offset is combined with a 64-bit base pointer to generate a 64-bit address;
• and select between sets of machine instructions to generate the 64-bit address with the combined offset and base pointer of the address calculation based, at least in part, on weights of the machine instructions, the machine instructions corresponding to instructions of a machine architecture targeted by the compiler.