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* SafepointIRVerifier is made unreachable block tolerantSerguei Katkov2018-05-231-0/+45
SafepointIRVerifier crashed while traversing blocks without a DomTreeNode. This could happen with a custom pipeline or when some optional passes were skipped by OptBisect. SafepointIRVerifier is fixed to traverse basic blocks that are reachable from entry. Test are added. Patch Author: Yevgeny Rouban! Reviewers: anna, reames, dneilson, DaniilSuchkov, skatkov Reviewed By: reames Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D47011 llvm-svn: 333063
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