Mangle std::nullptr_t as specified by the Itanium C++ ABI.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118236 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/Mangle.cpp b/lib/CodeGen/Mangle.cpp
index 37ecf28..d1e3a98 100644
--- a/lib/CodeGen/Mangle.cpp
+++ b/lib/CodeGen/Mangle.cpp
@@ -1219,9 +1219,8 @@
// UNSUPPORTED: ::= Dh # IEEE 754r half-precision floating point (16 bits)
// ::= Di # char32_t
// ::= Ds # char16_t
+ // ::= Dn # std::nullptr_t (i.e., decltype(nullptr))
// ::= u <source-name> # vendor extended type
- // From our point of view, std::nullptr_t is a builtin, but as far as mangling
- // is concerned, it's a type called std::nullptr_t.
switch (T->getKind()) {
case BuiltinType::Void: Out << 'v'; break;
case BuiltinType::Bool: Out << 'b'; break;
@@ -1244,7 +1243,7 @@
case BuiltinType::Float: Out << 'f'; break;
case BuiltinType::Double: Out << 'd'; break;
case BuiltinType::LongDouble: Out << 'e'; break;
- case BuiltinType::NullPtr: Out << "St9nullptr_t"; break;
+ case BuiltinType::NullPtr: Out << "Dn"; break;
case BuiltinType::Overload:
case BuiltinType::Dependent:
diff --git a/test/CodeGenCXX/mangle.cpp b/test/CodeGenCXX/mangle.cpp
index e78ad39..b5207a1 100644
--- a/test/CodeGenCXX/mangle.cpp
+++ b/test/CodeGenCXX/mangle.cpp
@@ -630,3 +630,8 @@
// CHECK: define void @_ZN6test2112vla_arg_funcEiPA_i(
void vla_arg_func(int X, int a[X][X]) {}
}
+
+namespace test22 {
+ // CHECK: define void @_ZN6test221fEDn(
+ void f(decltype(nullptr)) { }
+}