[all-commits] [llvm/llvm-project] 7d74ca: [ValueLattice] Support constant vectors in mergeIn...

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7d74ca9513a3fa53b482230c20b1977a1f3d121b
      https://github.com/llvm/llvm-project/commit/7d74ca9513a3fa53b482230c20b1977a1f3d121b
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2024-07-18 (Thu, 18 Jul 2024)

  Changed paths:
    M llvm/include/llvm/Analysis/ValueLattice.h
    M llvm/test/Transforms/CorrelatedValuePropagation/vectors.ll
    M llvm/test/Transforms/SCCP/phis.ll

  Log Message:
  -----------
  [ValueLattice] Support constant vectors in mergeIn() (#99466)

This is a followup to vector support in LVI/CVP/SCCP. In mergeIn(), if
one of the operands is a vector of integer constant, we should try to
convert it into a constant range, in case that allows performing a range
union to something better than overdefined.



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