System, method, and computer program product for remapping registers based on a change in execution mode

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

• receiving a sequence of instructions for execution by a processor;
• identifying a change in an execution mode from a first execution mode to a second execution mode within the sequence of instructions, wherein a first register mapping is associated with the first execution mode and a second register mapping is associated with the second execution mode;
• and
• reorganizing data stored in a set of registers within a processor based on the first register mapping and the second register mapping at the change in the execution mode, wherein the first execution mode is used to perform vector operations on the data stored in the set of registers and the second execution mode is used to perform scalar operations on the data stored in the set of registers.

A system comprising:

• a memory storing a sequence of instructions;
• and
• a processor that is coupled to the memory and configured to:
• receive the sequence of instructions for execution;
• identify a change in an execution mode from a first execution mode to a second execution mode within the sequence of instructions, wherein a first register mapping is associated with the first execution mode and a second register mapping is associated with the second execution mode;
• and
• reorganize data stored in a set of registers within the processor based on the first register mapping and the second register mapping in response to the change in the execution mode, wherein the first execution mode is used to perform vector operations on the data stored in the set of registers and the second execution mode is used to perform scalar operations on the data stored in the set of registers.