[llvm] r208057 - Update comment from a recent commit.

[David Blaikie]

Author: dblaikie
Date: Mon May  5 22:53:10 2014
New Revision: 208057

URL: http://llvm.org/viewvc/llvm-project?rev=208057&view=rev
Log:
Update comment from a recent commit.

Modified:
    llvm/trunk/include/llvm/CodeGen/LexicalScopes.h

Modified: llvm/trunk/include/llvm/CodeGen/LexicalScopes.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/LexicalScopes.h?rev=208057&r1=208056&r2=208057&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/LexicalScopes.h (original)
+++ llvm/trunk/include/llvm/CodeGen/LexicalScopes.h Mon May  5 22:53:10 2014
@@ -224,8 +224,8 @@ private:
 private:
   const MachineFunction *MF;
 
-  /// LexicalScopeMap - Tracks the scopes in the current function.  Owns the
-  /// contained LexicalScope*s.
+  /// LexicalScopeMap - Tracks the scopes in the current function.
+  // Use an unordered_map to ensure value pointer validity over insertion.
   std::unordered_map<const MDNode *, LexicalScope> LexicalScopeMap;
 
   /// InlinedLexicalScopeMap - Tracks inlined function scopes in current
@@ -233,7 +233,7 @@ private:
   DenseMap<DebugLoc, LexicalScope *> InlinedLexicalScopeMap;
 
   /// AbstractScopeMap - These scopes are  not included LexicalScopeMap.
-  /// AbstractScopes owns its LexicalScope*s.
+  // Use an unordered_map to ensure value pointer validity over insertion.
   std::unordered_map<const MDNode *, LexicalScope> AbstractScopeMap;
 
   /// AbstractScopesList - Tracks abstract scopes constructed while processing