Implement C++0x user-defined string literals.

The extra data stored on user-defined literal Tokens is stored in extra
allocated memory, which is managed by the PreprocessorLexer because there isn't
a better place to put it that makes sure it gets deallocated, but only after
it's used up. My testing has shown no significant slowdown as a result, but
independent testing would be appreciated.

llvm-svn: 112458

1 files changed, 6 insertions, 0 deletions

diff --git a/clang/lib/AST/StmtProfile.cpp b/clang/lib/AST/StmtProfile.cpp
index 098aec0a19c..79454748dde 100644
--- a/clang/lib/AST/StmtProfile.cpp
+++ b/clang/lib/AST/StmtProfile.cpp
@@ -828,6 +828,12 @@ void StmtProfiler::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *S) {
     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
 }
 
+void StmtProfiler::VisitUDLiteralExpr(UDLiteralExpr *S) {
+  VisitExpr(S);
+  VisitStmt(S->getBaseLiteral());
+  ID.AddString(S->getUDSuffix()->getName());
+}
+
 void StmtProfiler::VisitObjCStringLiteral(ObjCStringLiteral *S) {
   VisitExpr(S);
 }