[all-commits] [llvm/llvm-project] 7737c0: [VPlan] Make sure properlyDominates(A, A) returns ...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7737c0569660f2ea8edce8d3ea7276602b3a8552
      https://github.com/llvm/llvm-project/commit/7737c0569660f2ea8edce8d3ea7276602b3a8552
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2023-02-19 (Sun, 19 Feb 2023)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp

  Log Message:
  -----------
  [VPlan] Make sure properlyDominates(A, A) returns false.

At the moment, properlyDominates(A, A) can return true via
LocalComesBefore. Add an early exit to ensure it returns false if
A == B.

Note: no test has been added because the existing test suite covers this
case already with libc++ with assertions enabled.

Fixes https://github.com/llvm/llvm-project/issues/60850.