[PATCH] D27102: [Constants] Add scalable vector support to ConstantVector::getSplat. [IR support for SVE scalable vectors 2/4]

[Paul Walker via llvm-commits]

paulwalker-arm created this revision.
paulwalker-arm added a reviewer: majnemer.
paulwalker-arm added a subscriber: llvm-commits.

  Create a version of ConstantVector::getSplat that takes VT::ElementCount
  and thus preserves a vector's scalable property.  The result for
  non-scalable vectors remain unchanged but scalable vectors use the same
  IR sequence as used for non-constant splats.  This prompted updates to
  some instructions to ensure they also preserve a vector's scalable
  property.


https://reviews.llvm.org/D27102

Files:
  include/llvm/IR/Constants.h
  lib/IR/ConstantFold.cpp
  lib/IR/Constants.cpp
  lib/IR/ConstantsContext.h
  lib/IR/Instructions.cpp
  test/Transforms/ConstProp/splat.ll

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