[all-commits] [llvm/llvm-project] c8de7c: [TargetLowering] SimplifyDemandedBits - Remove ash...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: c8de7c8f501ea3dcc068f1c805cf036960f2262c
      https://github.com/llvm/llvm-project/commit/c8de7c8f501ea3dcc068f1c805cf036960f2262c
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2020-01-25 (Sat, 25 Jan 2020)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
    M llvm/test/CodeGen/AMDGPU/sdiv64.ll
    M llvm/test/CodeGen/AMDGPU/srem64.ll
    M llvm/test/CodeGen/RISCV/srem-vector-lkk.ll

  Log Message:
  -----------
  [TargetLowering] SimplifyDemandedBits - Remove ashr if all our demandedbits already match the sign bit

Differential Revision: https://reviews.llvm.org/D73412