[PATCH] [RewriteStatepointsForGC] Preprocess the IR to remove unreachable blocks and single entry phis

[Philip Reames]

REPOSITORY
  rL LLVM

http://reviews.llvm.org/D8675

Files:
  llvm/trunk/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
  llvm/trunk/test/Transforms/RewriteStatepointsForGC/preprocess.ll

EMAIL PREFERENCES
  http://reviews.llvm.org/settings/panel/emailpreferences/
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