commit 2f8c21d880e64fa13372ce978009b65a49f0040f
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 515c50e764b94f76df0973c59847f4c8aa336571
parent 0a53198149d26a908bd89ca945ee3f12b4acc949

Add a comment.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116615 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/CodeGenTBAA.cpp

diff --git a/lib/CodeGen/CodeGenTBAA.cpp b/lib/CodeGen/CodeGenTBAA.cpp
index 5aea0f2..a1f38be 100644
--- a/lib/CodeGen/CodeGenTBAA.cpp
+++ b/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);