[all-commits] [llvm/llvm-project] cb0ecc: [CallGraphUpdater] Remove dead constants before re...

[Johannes Doerfert via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: cb0ecc5c33bd56a3eed0fa30ac787accec45d637
      https://github.com/llvm/llvm-project/commit/cb0ecc5c33bd56a3eed0fa30ac787accec45d637
  Author: Johannes Doerfert <johannes at jdoerfert.de>
  Date:   2020-04-08 (Wed, 08 Apr 2020)

  Changed paths:
    M llvm/lib/Transforms/Utils/CallGraphUpdater.cpp
    M llvm/unittests/Analysis/CGSCCPassManagerTest.cpp

  Log Message:
  -----------
  [CallGraphUpdater] Remove dead constants before replacing a function

Dead constants might be left when a function is replaced, we can
gracefully handle this case and avoid complexity for the users who would
see an assertion otherwise.