From: David Majnemer <david.majnemer@gmail.com>
Date: Thu, 12 Dec 2013 23:12:01 +0000 (+0000)
Subject: [-cxx-abi microsoft] Mangle reference temporaries
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=8f9f0c367aa101a4883b613e4d0a7fb2f46c0e61;p=clang

[-cxx-abi microsoft] Mangle reference temporaries

They are mangled the same as normal references, nothing special is going
on here.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@197184 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/AST/MicrosoftMangle.cpp b/lib/AST/MicrosoftMangle.cpp
index 24eac84cdd..a02571e8a0 100644
--- a/lib/AST/MicrosoftMangle.cpp
+++ b/lib/AST/MicrosoftMangle.cpp
@@ -2040,10 +2040,9 @@ void MicrosoftMangleContextImpl::mangleCXXDtor(const CXXDestructorDecl *D,
 }
 
 void MicrosoftMangleContextImpl::mangleReferenceTemporary(const VarDecl *VD,
-                                                          raw_ostream &) {
-  unsigned DiagID = getDiags().getCustomDiagID(DiagnosticsEngine::Error,
-    "cannot mangle this reference temporary yet");
-  getDiags().Report(VD->getLocation(), DiagID);
+                                                          raw_ostream &Out) {
+  MicrosoftCXXNameMangler mangler(*this, Out);
+  mangler.mangle(VD);
 }
 
 void MicrosoftMangleContextImpl::mangleStaticGuardVariable(const VarDecl *VD,
diff --git a/test/CodeGenCXX/mangle-ms.cpp b/test/CodeGenCXX/mangle-ms.cpp
index 62f9831750..662234f9e6 100644
--- a/test/CodeGenCXX/mangle-ms.cpp
+++ b/test/CodeGenCXX/mangle-ms.cpp
@@ -445,3 +445,10 @@ decltype(a) fun(decltype(a) x, decltype(a)) { return x; }
 // CHECK-DAG: ?fun@PR18022@@YA?AU<unnamed-type-a>@1@U21@0@Z
 
 }
+
+// Binding to a bit-field that requires a temporary.
+struct { int bitfield : 3; } object_with_bitfield = { 3 };
+const int &reference_to_bitfield = object_with_bitfield.bitfield;
+// CHECK-DAG: ?object_with_bitfield@@3U<unnamed-type-object_with_bitfield>@@A
+// CHECK-DAG: ?reference_to_bitfield@@3ABHB
+// CHECK-DAG: ??__Ereference_to_bitfield@@YAXXZ