Register compaction with early release

A method comprising:

• assigning, by a control unit, a first set of registers to a first wavefront being launched on a compute unit;
• assigning a second set of registers to a second wavefront being launched on the first compute unit;
• and
• executing a release instruction responsive to detecting a write to memory by the first wavefront;
• responsive to detecting execution of the release instruction while one or more threads of the first wavefront remain active, reassigning one or more registers of the first set of registers to the second wavefront, wherein the second wavefront stores data in the one or more registers of the first set of registers subsequent to being reassigned the one or more registers.

A system comprising:

• a memory;
• and
• a processor coupled to the memory;
• wherein the processor is configured to:
• assign a first set of registers to a first wavefront being launched on a compute unit;
• assign a second set of registers to a second wavefront being launched on the compute unit;
• and
• execute a release instruction responsive to detecting a write to memory by the first wavefront;
• responsive to detecting execution of the release instruction while one or more threads of the first wavefront remain active, reassign one or more registers of the first set of registers from the first wavefront to the second wavefront, wherein the second wavefront stores data in the one or more registers of the first set of registers subsequent to being reassigned the one or more registers.