[all-commits] [llvm/llvm-project] 56a3e4: [ConstraintElim] Support decrementing inductions w...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 56a3e49a00161f6ac71316e3c1f4d5069c916590
      https://github.com/llvm/llvm-project/commit/56a3e49a00161f6ac71316e3c1f4d5069c916590
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2023-10-10 (Tue, 10 Oct 2023)

  Changed paths:
    M llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
    M llvm/test/Transforms/ConstraintElimination/monotonic-int-phis-decrement.ll
    M llvm/test/Transforms/ConstraintElimination/monotonic-int-phis-nested-loops.ll
    M llvm/test/Transforms/PhaseOrdering/loop-access-checks.ll

  Log Message:
  -----------
  [ConstraintElim] Support decrementing inductions with step -1. (#68644)

Extend the logic in addInfoForInductions to support decrementing
inductions with a step of -1.

Fixes #64881.