Method, apparatus & computer program product for optimizing...

Details Method, apparatus & computer program product for optimizing... Method, apparatus & computer program product for optimizing...

G - Physics

06

F

G06F 9/45 (2006.01)

Patent

CA 2278322

Apparatus, methods and computer program products are disclosed that enable a compiler to generate efficient code to access stack registers on a register stack. The invention operates by transforming a three-operand instruction, within a compiler's intermediate representation, to one or more fewer-than-three-operand instructions. The invention also transforms the instruction's operand addressing from an access to a pseudo- named register to an access to a stack register through stack offset into a register stack. The invention also determines the register stack state at each instruction responsive to register stack permutations and maps the stack offset accordingly for each subsequent access to a stack register.

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