Fix a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13518 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/CodeGen/MachineBasicBlock.h b/include/llvm/CodeGen/MachineBasicBlock.h
index f12c20008c93f48e5ff2fac267643fc2ed2b43fa..a035ba14776b3ec872e6dd8512cd7525b36bb4a2 100644 (file)
--- a/include/llvm/CodeGen/MachineBasicBlock.h
+++ b/include/llvm/CodeGen/MachineBasicBlock.h
@@ -161,8 +161,10 @@ public:
   void dump() const;
   void print(std::ostream &OS) const;
 
-  // MachineBasicBlocks are uniquely numbered at the function level
-  // (unless they're not in a MachineFunction yet)
+  /// getNumber - MachineBasicBlocks are uniquely numbered at the function
+  /// level, unless they're not in a MachineFunction yet, in which case this
+  /// will return -1.
+  ///
   int getNumber() const { return Number; }
 
 private:   // Methods used to maintain doubly linked list of blocks...