r330225 - Add Microsoft mangling for _Float16

[Erich Keane via cfe-commits]

Author: erichkeane
Date: Tue Apr 17 15:00:54 2018
New Revision: 330225

URL: http://llvm.org/viewvc/llvm-project?rev=330225&view=rev
Log:
Add Microsoft mangling for _Float16

Enables _Float16 on Windows by creating a mangling
mechanism in MicrosoftMangle.  It accomplishes this by 
mangling as a structure type of __clang::_Float16, similar
to how Complex works.

Patch By: mibintc
Differential Revision: https://reviews.llvm.org/D45738

Modified:
    cfe/trunk/lib/AST/MicrosoftMangle.cpp
    cfe/trunk/test/CodeGenCXX/mangle-ms.cpp

Modified: cfe/trunk/lib/AST/MicrosoftMangle.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/MicrosoftMangle.cpp?rev=330225&r1=330224&r2=330225&view=diff
==============================================================================
--- cfe/trunk/lib/AST/MicrosoftMangle.cpp (original)
+++ cfe/trunk/lib/AST/MicrosoftMangle.cpp Tue Apr 17 15:00:54 2018
@@ -1919,6 +1919,9 @@ void MicrosoftCXXNameMangler::mangleType
     break;
 
   case BuiltinType::Float16:
+    mangleArtificalTagType(TTK_Struct, "_Float16", {"__clang"});
+    break;
+
   case BuiltinType::Float128:
   case BuiltinType::Half: {
     DiagnosticsEngine &Diags = Context.getDiags();

Modified: cfe/trunk/test/CodeGenCXX/mangle-ms.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/mangle-ms.cpp?rev=330225&r1=330224&r2=330225&view=diff
==============================================================================
--- cfe/trunk/test/CodeGenCXX/mangle-ms.cpp (original)
+++ cfe/trunk/test/CodeGenCXX/mangle-ms.cpp Tue Apr 17 15:00:54 2018
@@ -466,6 +466,10 @@ namespace Complex {
 // CHECK-DAG: define dso_local void @"?f at Complex@@YAXU?$_Complex at H@__clang@@@Z"(
 void f(_Complex int) {}
 }
+namespace Float16 {
+// CHECK-DAG: define dso_local void @"?f at Float16@@YAXU_Float16 at __clang@@@Z"(
+void f(_Float16) {}
+}
 
 namespace PR26029 {
 template <class>