[PATCH] D157426: [AMDGPU][True16] Fix ISel for A16 Image Instructions

[Joe Nash via Phabricator via llvm-commits]

Joe_Nash created this revision.
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The 16-bit VAddr arguments to A16 image instructions are packed into
legal VGPR_32 operands in AMDGPULegalizerInfo::legalizeImageIntrinsic on
all subtargets. With True16, we also need to pack if the number of VAddr is one
because VGPR_16 is not a legal argument to those Image instructions.

No change to emitted code intended on subtargets pre-GFX11, and none on GFX11
until True16 is active.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D157426

Files:
  llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-llvm.amdgcn.image.atomic.dim.a16.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-llvm.amdgcn.image.dim.a16.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-llvm.amdgcn.image.sample.a16.ll

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