r217384 - Add a comment for something that confused me.

[Nico Weber]

Author: nico
Date: Mon Sep  8 11:11:15 2014
New Revision: 217384

URL: http://llvm.org/viewvc/llvm-project?rev=217384&view=rev
Log:
Add a comment for something that confused me.

Modified:
    cfe/trunk/lib/CodeGen/CodeGenModule.cpp

Modified: cfe/trunk/lib/CodeGen/CodeGenModule.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenModule.cpp?rev=217384&r1=217383&r2=217384&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CodeGenModule.cpp (original)
+++ cfe/trunk/lib/CodeGen/CodeGenModule.cpp Mon Sep  8 11:11:15 2014
@@ -3396,6 +3396,7 @@ llvm::Constant *CodeGenModule::EmitUuido
     else                                         assert(isHexDigit(Uuid[i]));
   }
 
+  // The starts of all bytes of Field3 in Uuid. Field 3 is "1234-1234567890ab".
   const unsigned Field3ValueOffsets[8] = { 19, 21, 24, 26, 28, 30, 32, 34 };
 
   llvm::Constant *Field3[8];