From: Douglas Gregor <dgregor@apple.com>
Date: Fri, 13 Feb 2009 01:28:03 +0000 (+0000)
Subject: Add mangling for variadic functions and conversion functions
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=219cc61b505960195d538052f0e629b387ad60ca;p=clang

Add mangling for variadic functions and conversion functions

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64425 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/Mangle.cpp b/lib/CodeGen/Mangle.cpp
index a97ac58dd7..9ad98d787a 100644
--- a/lib/CodeGen/Mangle.cpp
+++ b/lib/CodeGen/Mangle.cpp
@@ -161,7 +161,9 @@ void CXXNameMangler::mangleUnqualifiedName(const NamedDecl *ND) {
     break;
 
   case DeclarationName::CXXConversionFunctionName:
-    assert(false && "Not sure how to mangle conversion functions yet");
+    // <operator-name> ::= cv <type>	# (cast) 
+    Out << "cv";
+    mangleType(Context.getCanonicalType(Name.getCXXNameType()));
     break;
 
   case DeclarationName::CXXOperatorName:
@@ -171,6 +173,7 @@ void CXXNameMangler::mangleUnqualifiedName(const NamedDecl *ND) {
 
   case DeclarationName::CXXUsingDirective:
     assert(false && "Can't mangle a using directive name!");
+    break;
   }
 }
 
@@ -398,7 +401,6 @@ void CXXNameMangler::mangleType(const BuiltinType *T) {
   //                 ::= d  # double
   //                 ::= e  # long double, __float80
   // UNSUPPORTED:    ::= g  # __float128
-  // NOT HERE:       ::= z  # ellipsis
   // UNSUPPORTED:    ::= Dd # IEEE 754r decimal floating point (64 bits)
   // UNSUPPORTED:    ::= De # IEEE 754r decimal floating point (128 bits)
   // UNSUPPORTED:    ::= Df # IEEE 754r decimal floating point (32 bits)
@@ -455,6 +457,10 @@ void CXXNameMangler::mangleBareFunctionType(const FunctionType *T,
                                          ArgEnd = Proto->arg_type_end(); 
        Arg != ArgEnd; ++Arg)
     mangleType(*Arg);
+
+  // <builtin-type>      ::= z  # ellipsis
+  if (Proto->isVariadic())
+    Out << 'z';
 }
 
 void CXXNameMangler::mangleType(const TagType *T) {
diff --git a/test/CodeGen/overloadable.c b/test/CodeGen/overloadable.c
index 6b1cb351e6..4e24c91a79 100644
--- a/test/CodeGen/overloadable.c
+++ b/test/CodeGen/overloadable.c
@@ -9,6 +9,8 @@ v4hi __attribute__((overloadable)) f(v4hi x) { return x; }
 struct X { };
 void  __attribute__((overloadable)) f(struct X (*ptr)[10]) { }
 
+void __attribute__((overloadable)) f(int x, int y, ...) { }
+
 int main() {
   int iv = 17;
   float fv = 3.0f;