[PATCH] D63972: [CodeGen] Do the Simple Early Return in block-placement pass to optimize the blocks

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

Okay, delaying some of the work to sense, since you can't really modify FunctionChain while you're iterating over it.

Any response to my other comment?

> Looking over this patch again, some of the other work involved in updating various data structures isn't complete here; the MachineDominatorTree/MachinePostDominatorTree isn't updated, MachineLoopInfo isn't updated.


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  https://reviews.llvm.org/D63972/new/

https://reviews.llvm.org/D63972