[all-commits] [llvm/llvm-project] 26223a: [SCEV] Split isSCEVExprNeverPoison reasoning expli...

[Philip Reames via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 26223af256bb8f0aa1a82989882c81ffae44c6d1
      https://github.com/llvm/llvm-project/commit/26223af256bb8f0aa1a82989882c81ffae44c6d1
  Author: Philip Reames <listmail at philipreames.com>
  Date:   2021-10-02 (Sat, 02 Oct 2021)

  Changed paths:
    M llvm/include/llvm/Analysis/ScalarEvolution.h
    M llvm/lib/Analysis/ScalarEvolution.cpp

  Log Message:
  -----------
  [SCEV] Split isSCEVExprNeverPoison reasoning explicitly into scope and mustexecute parts [NFC]

Inspired by the needs to D111001 and D109845.  The seperation of concerns also amakes it easier to reason about correctness and completeness.