[PATCH] D121914: [AMDGPU] Stop using getMinimalPhysRegClass in LowerFormalArguments

[Jay Foad via Phabricator via llvm-commits]

foad added inline comments.


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Comment at: llvm/lib/Target/AMDGPU/SIISelLowering.cpp:2551
     Register Reg = VA.getLocReg();
-    const TargetRegisterClass *RC = TRI->getMinimalPhysRegClass(Reg, VT);
     EVT ValVT = VA.getValVT();
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As an alternative, I did try implementing a getMaximalAllocatablePhysRegClass and using it here. That seemed to cause other problems, but I can pursue it further if you think it's the right way to go.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D121914/new/

https://reviews.llvm.org/D121914