[PATCH] D70597: [PHIEliminate] skip dbg instruction when LowerPHINode

[Chris Ye via Phabricator via llvm-commits]

yechunliang added a comment.

Another idea is to add one more helper like getFirstNonPHIsAndLabels(), replace getFirstNonPHI in ScheduleDAGSDNodes.cpp#L935.
Insert dbg_values after PHIs and Labels, so that there will be no dbg_values barrier between PHI and LABELS.

[0] https://github.com/llvm/llvm-project/blob/742043047c973999eac7734e53f7872973933f24/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp#L935


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https://reviews.llvm.org/D70597