[PATCH] D113081: [LowerSwitch] Delete all new dead blocks accurately

[Chuanqi Xu via Phabricator via llvm-commits]

ChuanqiXu added a comment.

If the newly added blocks are dead, they should be deleted by later DCE passes in one shot, am I right?
I think it is good to eliminate dead blocks if we could make it cheaply. But if we need to calculate reachable definitions by DT in a loop, it looks a little bit expensive. 
I mean this patch may cause the compile time increases but wouldn't change the code generated finally.


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https://reviews.llvm.org/D113081