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0e452c9531
Summary: Instruction Selection preserves relative orders of all nodes save TokenFactors which we treat specially. As a result Node Ids for TokenFactors may violate the topological ordering and should not be considered as valid pruning candidates in predecessor search. Fixes PR35316. Reviewers: RKSimon, hfinkel Subscribers: hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D42701 llvm-svn: 323880
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