[all-commits] [llvm/llvm-project] fd2367: [IndVars] Forget SCEV for value after simplifying ...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fd236772f5665ce9e55f85ac992be6c22a918d3e
      https://github.com/llvm/llvm-project/commit/fd236772f5665ce9e55f85ac992be6c22a918d3e
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2022-10-21 (Fri, 21 Oct 2022)

  Changed paths:
    M llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
    M llvm/test/Transforms/IndVarSimplify/invalidate-modified-lcssa-phi.ll

  Log Message:
  -----------
  [IndVars] Forget SCEV for value after simplifying condition.

Additional SCEV verification highlighted a case where the cached loop
dispositions where incorrect after simplifying a condition in IndVars
and moving the user in LoopDeletion. Fix it by invalidating ICmp and all
its users.

Fixes #58515.