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c3b4726b4b
Summary: Assert from PR38737 happens on the dead block inside the parent loop after unswitching nontrivial switch in the inner loop. deleteDeadBlocksFromLoop now takes extra care to detect/remove dead blocks in all the parent loops in addition to the blocks from original loop being unswitched. Reviewers: asbirlea, chandlerc Reviewed By: asbirlea Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D51415 llvm-svn: 340955