From 27654983dc1b42531fa63156af84e5184a72df78 Mon Sep 17 00:00:00 2001
From: Sam Bishop <sam@bishop.dhs.org>
Date: Fri, 21 Mar 2008 07:13:02 +0000
Subject: [PATCH] Plug a memory leak in the "this macro expands into a single
 trivially- expanded token" case.

llvm-svn: 48637
---
 clang/lib/Lex/PPMacroExpansion.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/clang/lib/Lex/PPMacroExpansion.cpp b/clang/lib/Lex/PPMacroExpansion.cpp
index c21f399e63d6..23dfbbca578f 100644
--- a/clang/lib/Lex/PPMacroExpansion.cpp
+++ b/clang/lib/Lex/PPMacroExpansion.cpp
@@ -221,7 +221,10 @@ bool Preprocessor::HandleMacroExpandedIdentifier(Token &Identifier,
     // Otherwise, if this macro expands into a single trivially-expanded
     // token: expand it now.  This handles common cases like 
     // "#define VAL 42".
-    
+
+    // No need for arg info.
+    if (Args) Args->destroy();
+
     // Propagate the isAtStartOfLine/hasLeadingSpace markers of the macro
     // identifier to the expanded token.
     bool isAtStartOfLine = Identifier.isAtStartOfLine();