[all-commits] [llvm/llvm-project] 7912f5: [SCEV] Add SCEVType to represent `vscale`.

[paulwalker-arm via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7912f5cc92f65ad0d3c705f3683a0b69dbedcc57
      https://github.com/llvm/llvm-project/commit/7912f5cc92f65ad0d3c705f3683a0b69dbedcc57
  Author: Paul Walker <paul.walker at arm.com>
  Date:   2023-03-02 (Thu, 02 Mar 2023)

  Changed paths:
    M llvm/include/llvm/Analysis/ScalarEvolution.h
    M llvm/include/llvm/Analysis/ScalarEvolutionDivision.h
    M llvm/include/llvm/Analysis/ScalarEvolutionExpressions.h
    M llvm/include/llvm/Transforms/Utils/ScalarEvolutionExpander.h
    M llvm/lib/Analysis/ScalarEvolution.cpp
    M llvm/lib/Analysis/ScalarEvolutionDivision.cpp
    M llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
    M llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp

  Log Message:
  -----------
  [SCEV] Add SCEVType to represent `vscale`.

This is part of an effort to remove ConstantExpr based
representations of `vscale` so that its LangRef definiton can
be relaxed to accommodate a less strict definition of constant.

Differential Revision: https://reviews.llvm.org/D144891