[PATCH] D22696: [CodeGenPrep] Skip merging empty case blocks

[Dehao Chen via llvm-commits]

danielcdh added a comment.

Could you point me to the original test case? I tried on the unittest in this patch, my patch can create the critical edge. And looks to me by the time of MachineSink, the switch has already been lowered to branches, thus there is no indirect branch?


https://reviews.llvm.org/D22696