[PATCH] D74832: AMDGPU: Use default operand for VOP3P clamp

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added a reviewer: rampitec.
Herald added subscribers: kerbowa, hiraditya, t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, jvesely, kzhuravl.
Herald added a project: LLVM.
arsenm added a parent revision: D74803: TableGen: Fix logic for default operands.

We don't use this, and matching from the def doesn't make much sense.

      

There are multiple tablegen bugs with default operand
handling. undef_tied_input should work to handle the vdst_in
correctly, but this breaks the operand register class constraint which
it should be able to infer.


https://reviews.llvm.org/D74832

Files:
  llvm/lib/Target/AMDGPU/AMDGPUGISel.td
  llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
  llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
  llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.h
  llvm/lib/Target/AMDGPU/SIInstrInfo.td
  llvm/lib/Target/AMDGPU/VOP3Instructions.td
  llvm/lib/Target/AMDGPU/VOP3PInstructions.td

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