Jay Foad d85d143ad9 [AMDGPU] New image intrinsic optimizer pass (#67151) ...

Implement a new pass to combine multiple image_load_2dmsaa and
2darraymsaa intrinsic calls into a single image_msaa_load if:

- they refer to the same vaddr except for sample_id,
- they use a constant sample_id and they fall into the same group,
- they have the same dmask and the number of instructions and the
  number of vaddr/vdata dword transfers is reduced by the combine

This should be valid on all GFX11 but a hardware bug renders it
unworkable on GFX11.0.* so it is only enabled for GFX11.5.

Based on a patch by Rodrigo Dominguez!

2023-09-26 09:33:49 +01:00

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