[all-commits] [llvm/llvm-project] d714aa: [SimplifyCFG] Handle AssumptionCache being null.

[Rodrigo Rocha via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: d714aa0dfdb16270fc279e8e91d4a83ace531529
      https://github.com/llvm/llvm-project/commit/d714aa0dfdb16270fc279e8e91d4a83ace531529
  Author: Rodrigo Caetano Rocha <rcor.cs at gmail.com>
  Date:   2019-12-07 (Sat, 07 Dec 2019)

  Changed paths:
    M llvm/lib/Transforms/Utils/SimplifyCFG.cpp
    M llvm/unittests/Transforms/Utils/LocalTest.cpp

  Log Message:
  -----------
  [SimplifyCFG] Handle AssumptionCache being null.

AssumptionCache can be null in SimplifyCFGOptions. However, FoldCondBranchOnPHI() was not properly handling that when passing a null AssumptionCache to simplifyCFG.

Patch by Rodrigo Caetano Rocha <rcor.cs at gmail.com>

Reviewers: fhahn, lebedev.ri, spatel

Reviewed By: spatel

Differential Revision: https://reviews.llvm.org/D69963