commit 2d0a3c7b8c31d522e8c1456bd005bd3ecf57b84b
author Dan Gohman <gohman@apple.com> Fri Oct 15 20:24:53 2010 +0000
committer Dan Gohman <gohman@apple.com> Fri Oct 15 20:24:53 2010 +0000
tree e09bbcec21bc9cedce335818d4eaeee4c3746f0d
parent 4a3b1b3ef4b86fddd362e8bbaf6ff8187ce69735

Add a comment.

llvm-svn: 116615

clang/lib/CodeGen/CodeGenTBAA.cpp

diff --git a/clang/lib/CodeGen/CodeGenTBAA.cpp b/clang/lib/CodeGen/CodeGenTBAA.cpp
index 5aea0f2..a1f38be 100644
--- a/clang/lib/CodeGen/CodeGenTBAA.cpp
+++ b/clang/lib/CodeGen/CodeGenTBAA.cpp
@@ -76,7 +76,9 @@
     case BuiltinType::UInt128:
       return getTBAAInfo(Context.Int128Ty);
 
-    // Other builtin types.
+    // Treat all other builtin types as distinct types. This includes
+    // treating wchar_t, char16_t, and char32_t as distinct from their
+    // "underlying types".
     default:
       return MetadataCache[Ty] =
                getTBAAInfoForNamedType(BTy->getName(Features), Char);