[all-commits] [llvm/llvm-project] 5702da: [DAG] Enable ISD::INSERT_SUBVECTOR SimplifyMultipl...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 5702dadf6f574aa2a9dbfe1dfa44023cd37fc696
      https://github.com/llvm/llvm-project/commit/5702dadf6f574aa2a9dbfe1dfa44023cd37fc696
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2020-01-31 (Fri, 31 Jan 2020)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
    M llvm/test/CodeGen/X86/horizontal-reduce-smin.ll
    M llvm/test/CodeGen/X86/insertelement-ones.ll
    M llvm/test/CodeGen/X86/vector-reduce-smin.ll

  Log Message:
  -----------
  [DAG] Enable ISD::INSERT_SUBVECTOR SimplifyMultipleUseDemandedBits handling

This allows SimplifyDemandedBits to call SimplifyMultipleUseDemandedBits to create a simpler ISD::INSERT_SUBVECTOR, which is particularly useful for cases where we're splitting into subvectors anyhow.