Reinstate r133435 and r133449 (reverted in r133499) now that the clang

self-hosted build failure has been fixed (r133512).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133513 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 1 deletions

diff --git a/include/llvm/BasicBlock.h b/include/llvm/BasicBlock.h
index 7e7c9e7694..b02c249c7e 100644
--- a/include/llvm/BasicBlock.h
+++ b/include/llvm/BasicBlock.h
@@ -110,7 +110,7 @@ public:
         Function *getParent()       { return Parent; }
 
   /// use_back - Specialize the methods defined in Value, as we know that an
-  /// BasicBlock can only be used by Users (specifically PHI nodes, terminators,
+  /// BasicBlock can only be used by Users (specifically terminators
   /// and BlockAddress's).
   User       *use_back()       { return cast<User>(*use_begin());}
   const User *use_back() const { return cast<User>(*use_begin());}
@@ -248,6 +248,10 @@ public:
   /// other than direct branches, switches, etc. to it.
   bool hasAddressTaken() const { return getSubclassDataFromValue() != 0; }
 
+  /// replaceSuccessorsPhiUsesWith - Update all phi nodes in all our successors
+  /// to refer to basic block New instead of to us.
+  void replaceSuccessorsPhiUsesWith(BasicBlock *New);
+
 private:
   /// AdjustBlockAddressRefCount - BasicBlock stores the number of BlockAddress
   /// objects using it.  This is almost always 0, sometimes one, possibly but