Method and apparatus for optimising computer program code

A computer program code optimisation apparatus comprising at least one processor arranged to optimise computer program code;

• wherein the at least one processing component is arranged to:
• identify candidate instructions within the computer program code, each candidate instruction comprising an instruction for writing a constant value to memory;
• check the validity of aggregating candidate instructions by checking whether the candidate instructions have volatile operands;
• select at least one set of candidate instructions comprising a plurality of candidate instructions, in response to the candidate instruction not having volatile operands;
• compute an aggregate constant value for the at least one set of candidate instructions;
• and replace the at least one set of candidate instructions with at least one instruction for writing the aggregate constant value to memory.

A non-transitory computer program product having executable program code stored therein for optimising computer program code, the program code operable for:

• identifying candidate instructions within the computer program code, each candidate instruction comprising an instruction for writing a constant value to memory;
• checking the validity of aggregating candidate instructions by checking whether the candidate instructions have volatile operands;
• selecting at least one set of candidate instructions comprising a plurality of candidate instructions, in response to the candidate instruction not having volatile operands;
• computing an aggregate constant value for the at least one set of candidate instructions;
• and
• replacing the at least one set of candidate instructions with at least one instruction for writing the aggregate constant value to memory.