Add frontend support for __vectorcall

Wire it through everywhere we have support for fastcall, essentially.

This allows us to parse the MSVC "14" CTP headers, but we will
miscompile them because LLVM doesn't support __vectorcall yet.

Reviewed By: Aaron Ballman

Differential Revision: http://reviews.llvm.org/D5808

llvm-svn: 220573

1 files changed, 2 insertions, 0 deletions

diff --git a/clang/lib/AST/MicrosoftMangle.cpp b/clang/lib/AST/MicrosoftMangle.cpp
index 59cf4d091bf..ca16db4cdd0 100644
--- a/clang/lib/AST/MicrosoftMangle.cpp
+++ b/clang/lib/AST/MicrosoftMangle.cpp
@@ -1687,6 +1687,7 @@ void MicrosoftCXXNameMangler::mangleCallingConvention(const FunctionType *T) {
   //                      ::= H # __export __stdcall
   //                      ::= I # __fastcall
   //                      ::= J # __export __fastcall
+  //                      ::= Q # __vectorcall
   // The 'export' calling conventions are from a bygone era
   // (*cough*Win16*cough*) when functions were declared for export with
   // that keyword. (It didn't actually export them, it just made them so
@@ -1703,6 +1704,7 @@ void MicrosoftCXXNameMangler::mangleCallingConvention(const FunctionType *T) {
     case CC_X86ThisCall: Out << 'E'; break;
     case CC_X86StdCall: Out << 'G'; break;
     case CC_X86FastCall: Out << 'I'; break;
+    case CC_X86VectorCall: Out << 'Q'; break;
   }
 }
 void MicrosoftCXXNameMangler::mangleThrowSpecification(