[PATCH] D42247: [Dominators] Fix some edge cases for PostDomTree updating

[Dave Green via Phabricator via llvm-commits]

dmgreen created this revision.
dmgreen added reviewers: kuhar, dberlin, davide.

These fix some odd cfg cases where batch-updating the post dom tree fails. Usually around infinite loops and roots ending up being different.


https://reviews.llvm.org/D42247

Files:
  include/llvm/Support/GenericDomTreeConstruction.h
  unittests/IR/DominatorTreeBatchUpdatesTest.cpp

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D42247.130435.patch
Type: text/x-patch
Size: 5041 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20180118/90fc0435/attachment.bin>