[all-commits] [llvm/llvm-project] 393b4b: [X86] SimplifyDemandedVectorEltsForTargetNode - me...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 393b4bd1362f6634a972157e7c2f3936f51f7356
      https://github.com/llvm/llvm-project/commit/393b4bd1362f6634a972157e7c2f3936f51f7356
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2020-06-27 (Sat, 27 Jun 2020)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp

  Log Message:
  -----------
  [X86] SimplifyDemandedVectorEltsForTargetNode - merge shuffle/pack lower demanded elements handling.

Generalize the vector operand extraction code for shuffle/pack ops - we can assume that the vector operands are the same width as the result, and any non-vector values can be reused directly in the smaller width op.