From 36c49e3f258dced101949edabd72e9bc3f1dedc4 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Fri, 17 Sep 2010 15:54:40 +0000
Subject: Vendor import of clang r114020 (from the release_28 branch):
 http://llvm.org/svn/llvm-project/cfe/branches/release_28@114020

Approved by:	rpaulo (mentor)
---
 lib/AST/MicrosoftCXXABI.cpp | 48 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 lib/AST/MicrosoftCXXABI.cpp

(limited to 'lib/AST/MicrosoftCXXABI.cpp')

diff --git a/lib/AST/MicrosoftCXXABI.cpp b/lib/AST/MicrosoftCXXABI.cpp
new file mode 100644
index 0000000..87b7767
--- /dev/null
+++ b/lib/AST/MicrosoftCXXABI.cpp
@@ -0,0 +1,48 @@
+//===------- MicrosoftCXXABI.cpp - AST support for the Microsoft C++ ABI --===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This provides C++ AST support targetting the Microsoft Visual C++
+// ABI.
+//
+//===----------------------------------------------------------------------===//
+
+#include "CXXABI.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/Type.h"
+#include "clang/AST/DeclCXX.h"
+
+using namespace clang;
+
+namespace {
+class MicrosoftCXXABI : public CXXABI {
+  ASTContext &Context;
+public:
+  MicrosoftCXXABI(ASTContext &Ctx) : Context(Ctx) { }
+
+  unsigned getMemberPointerSize(const MemberPointerType *MPT) const;
+};
+}
+
+unsigned MicrosoftCXXABI::getMemberPointerSize(const MemberPointerType *MPT) const {
+  QualType Pointee = MPT->getPointeeType();
+  CXXRecordDecl *RD = MPT->getClass()->getAsCXXRecordDecl();
+  if (RD->getNumVBases() > 0) {
+    if (Pointee->isFunctionType())
+      return 3;
+    else
+      return 2;
+  } else if (RD->getNumBases() > 1 && Pointee->isFunctionType())
+    return 2;
+  return 1;
+}
+
+CXXABI *clang::CreateMicrosoftCXXABI(ASTContext &Ctx) {
+  return new MicrosoftCXXABI(Ctx);
+}
+
-- 
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