[all-commits] [llvm/llvm-project] 37aa16: [DA] Don't propagate from unreachable blocks

[Austin Kerbow via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 37aa16ebb713c1d76d93f7d29419fd6ea88ac72c
      https://github.com/llvm/llvm-project/commit/37aa16ebb713c1d76d93f7d29419fd6ea88ac72c
  Author: Austin Kerbow <Austin.Kerbow at amd.com>
  Date:   2020-01-24 (Fri, 24 Jan 2020)

  Changed paths:
    M llvm/lib/Analysis/DivergenceAnalysis.cpp
    A llvm/test/Analysis/DivergenceAnalysis/AMDGPU/unreachable-loop-block.ll

  Log Message:
  -----------
  [DA] Don't propagate from unreachable blocks

Summary: Fixes crash that could occur when a divergent terminator has an unreachable parent.

Reviewers: rampitec, nhaehnle, arsenm

Subscribers: jvesely, wdng, hiraditya, jfb, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D73323