[PATCH] D113396: [DAG] Add SelectionDAG::ComputeMinSignedBits helper

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon created this revision.
RKSimon added reviewers: lebedev.ri, spatel.
Herald added subscribers: foad, ecnelises, kerbowa, pengfei, hiraditya, nhaehnle, jvesely, arsenm.
RKSimon requested review of this revision.
Herald added a project: LLVM.

As suggested on D113371 <https://reviews.llvm.org/D113371>, this adds a wrapper to SelectionDAG::ComputeNumSignBits, similar to the llvm::ComputeMinSignedBits wrapper.

I've included some usage, its not exhaustive, just the more obvious cases where the intention is obvious.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D113396

Files:
  llvm/include/llvm/CodeGen/SelectionDAG.h
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
  llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
  llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
  llvm/lib/Target/X86/X86ISelLowering.cpp

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