[all-commits] [llvm/llvm-project] 703f6a: [ConstraintElimination] Support conditions from lo...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 703f6a6828b51cd2b475982a9de2af242dfba97c
      https://github.com/llvm/llvm-project/commit/703f6a6828b51cd2b475982a9de2af242dfba97c
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2021-02-04 (Thu, 04 Feb 2021)

  Changed paths:
    M llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
    M llvm/test/Transforms/ConstraintElimination/dom.ll

  Log Message:
  -----------
  [ConstraintElimination] Support conditions from loop preheaders

This patch extends the condition collection logic to allow adding
conditions from pre-headers to loop headers, by allowing cases where the
target block dominates some of its predecessors.