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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80749 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/BasicBlock.h b/include/llvm/BasicBlock.h
index 3f535076eaa39ff4bf5867f9b43144e65db34313..b497827fd6950fde52b8777e22abf9978783f959 100644 (file)
--- a/include/llvm/BasicBlock.h
+++ b/include/llvm/BasicBlock.h
@@ -231,6 +231,9 @@ public:
   /// cause a degenerate basic block to be formed, having a terminator inside of
   /// the basic block).
   ///
+  /// Also note that this doesn't preserve any passes. To split blocks while
+  /// keeping loop information consistent, use the SplitBlock utility function.
+  ///
   BasicBlock *splitBasicBlock(iterator I, const Twine &BBName = "");
 };