Wei Mi 35ee9339a8 [NFC] Extract LastSplitPoint computation from SplitAnalysis to a new class ...

InsertPointAnalysis.

Because both split and spill hoisting want to use LastSplitPoint computation
result, extract the LastSplitPoint computation from SplitAnalysis class which
also contains a bunch of other analysises only related to split.

Differential Revision: http://reviews.llvm.org/D20027.

llvm-svn: 269248

2016-05-11 22:28:29 +00:00

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