Jay Foad 0f94d2b385 [AMDGPU] GFX11: automatically release VGPRs at the end of the shader ...

GFX11 has a new message type MSG_DEALLOC_VGPRS which can be used to
release a shader's VGPRs. Sending this at the end of a shader (just
before the s_endpgm) can help overall system performance in cases where
the s_endpgm would have to wait for outstanding VMEM stores to complete
before releasing the VGPRs.

Differential Revision: https://reviews.llvm.org/D128442

2022-06-30 20:55:14 +01:00

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