Carl Ritson c3e07a0018 [AMDGPU] SIInsertSkips: Refactor early exit block creation ...

Refactor exit block creation to a single call ensureEarlyExitBlock.
Add support for generating an early exit block which clears the
exec mask, but only add this instruction when required.
These changes are to facilitate adding more forms of early
termination for PS shaders in the near future.

Reviewed By: nhaehnle

Differential Revision: https://reviews.llvm.org/D88775

2020-10-06 09:44:55 +09:00

16 KiB

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