1 files changed, 10 insertions, 5 deletions
diff --git a/lib/AST/ItaniumCXXABI.cpp b/lib/AST/ItaniumCXXABI.cpp
index ce1244c..894eb3b 100644
--- a/lib/AST/ItaniumCXXABI.cpp
+++ b/lib/AST/ItaniumCXXABI.cpp
@@ -19,8 +19,8 @@
 
 #include "CXXABI.h"
 #include "clang/AST/ASTContext.h"
-#include "clang/AST/RecordLayout.h"
 #include "clang/AST/DeclCXX.h"
+#include "clang/AST/RecordLayout.h"
 #include "clang/AST/Type.h"
 #include "clang/Basic/TargetInfo.h"
 
@@ -33,10 +33,15 @@ protected:
 public:
   ItaniumCXXABI(ASTContext &Ctx) : Context(Ctx) { }
 
-  unsigned getMemberPointerSize(const MemberPointerType *MPT) const {
-    QualType Pointee = MPT->getPointeeType();
-    if (Pointee->isFunctionType()) return 2;
-    return 1;
+  std::pair<uint64_t, unsigned>
+  getMemberPointerWidthAndAlign(const MemberPointerType *MPT) const {
+    const TargetInfo &Target = Context.getTargetInfo();
+    TargetInfo::IntType PtrDiff = Target.getPtrDiffType(0);
+    uint64_t Width = Target.getTypeWidth(PtrDiff);
+    unsigned Align = Target.getTypeAlign(PtrDiff);
+    if (MPT->getPointeeType()->isFunctionType())
+      Width = 2 * Width;
+    return std::make_pair(Width, Align);
   }
 
   CallingConv getDefaultMethodCallConv(bool isVariadic) const {