[PATCH] D74373: AMDGPU/GlobalISel: Handle sbfe/ubfe intrinsic

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: nhaehnle, foad, kerbowa.
Herald added subscribers: Petar.Avramovic, hiraditya, t-tye, tpr, dstuttard, rovka, yaxunl, wdng, jvesely, kzhuravl.
Herald added a project: LLVM.

Try to handle arbitrary scalar BFEs by packing the operands. The DAG
gives up on non-constant arguments. We're still missing any constant
folding, so we end up with pretty ugly code most of the time. Also
handle the 64-bit scalar case, which the DAG doesn't try to do.


https://reviews.llvm.org/D74373

Files:
  llvm/lib/Target/AMDGPU/AMDGPUInstrInfo.td
  llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
  llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.h
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.sbfe.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.ubfe.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D74373.243710.patch
Type: text/x-patch
Size: 87223 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20200211/fcf3a8c1/attachment.bin>