[all-commits] [llvm/llvm-project] d2e15a: [RS4GC] Cleanup meetBDVState. NFC.

[serguei-katkov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d2e15a83a664ba6cdfa9d17e81ecc9115b2c5046
      https://github.com/llvm/llvm-project/commit/d2e15a83a664ba6cdfa9d17e81ecc9115b2c5046
  Author: Serguei Katkov <serguei.katkov at azul.com>
  Date:   2021-04-09 (Fri, 09 Apr 2021)

  Changed paths:
    M llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp

  Log Message:
  -----------
  [RS4GC] Cleanup meetBDVState. NFC.

meetBDVState looks pretty difficult to read and follow.
This is purely NFC but doing several things:

1) Combine meet and meetBDVState
2) Move the function to be a member of BDVState
3) Make BDVState be a mutable object
4) Convert switch to sequence of ifs
5) Adds comments.

Reviewers: reames, dantrushin
Reviewed By: reames
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D99064