From b5b32f5292a8c4e1be8fd5c2865ce48767ec63d5 Mon Sep 17 00:00:00 2001
From: Anders Carlsson <andersca@mac.com>
Date: Thu, 3 Dec 2009 03:15:31 +0000
Subject: [PATCH] Use Eli's ComputeThunkAdjustment for calculating the return
 adjustment.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90402 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/CGVtable.cpp | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/lib/CodeGen/CGVtable.cpp b/lib/CodeGen/CGVtable.cpp
index 007960e998..caac827016 100644
--- a/lib/CodeGen/CGVtable.cpp
+++ b/lib/CodeGen/CGVtable.cpp
@@ -274,18 +274,20 @@ public:
         
         Thunks.erase(i);
       }
-      
-      // Construct the return adjustment.
+
+      QualType BaseType = QualType(Thunk.ReturnType)->getPointeeType();
       QualType DerivedType = 
-        MD->getType()->getAs<FunctionType>()->getResultType();
+        MD->getType()->getAs<FunctionType>()->getResultType()->getPointeeType();
       
-      int64_t NonVirtualAdjustment = 
-        getNVOffset(Thunk.ReturnType, DerivedType) / 8;
+      const CXXRecordDecl *BaseDecl = 
+        cast<CXXRecordDecl>(BaseType->getAs<RecordType>()->getDecl());
       
-      int64_t VirtualAdjustment = 
-        getVbaseOffset(Thunk.ReturnType, DerivedType);
+      const CXXRecordDecl *DerivedDecl = 
+        cast<CXXRecordDecl>(DerivedType->getAs<RecordType>()->getDecl());
       
-      ThunkAdjustment ReturnAdjustment(NonVirtualAdjustment, VirtualAdjustment);
+      // Construct the return adjustment.
+      ThunkAdjustment ReturnAdjustment = 
+        CGM.ComputeThunkAdjustment(DerivedDecl, BaseDecl);
       
       CovariantThunkAdjustment Adjustment(ThisAdjustment, ReturnAdjustment);
       submethods[Index] = CGM.BuildCovariantThunk(MD, Extern, Adjustment);
@@ -745,7 +747,7 @@ TypeConversionRequiresAdjustment(ASTContext &Ctx,
   }
   
   const CXXRecordDecl *DerivedDecl = 
-  cast<CXXRecordDecl>(cast<RecordType>(CanDerivedType)->getDecl());
+    cast<CXXRecordDecl>(cast<RecordType>(CanDerivedType)->getDecl());
   
   const CXXRecordDecl *BaseDecl = 
   cast<CXXRecordDecl>(cast<RecordType>(CanBaseType)->getDecl());
-- 
2.40.0