[cfe-commits] r77458 - /cfe/trunk/lib/CodeGen/CGCXX.cpp

[Fariborz Jahanian]

Author: fjahanian
Date: Wed Jul 29 10:54:56 2009
New Revision: 77458

URL: http://llvm.org/viewvc/llvm-project?rev=77458&view=rev
Log:
Use the existing API for base offset. Use suitable llvm type
for offset ir-gen.


Modified:
    cfe/trunk/lib/CodeGen/CGCXX.cpp

Modified: cfe/trunk/lib/CodeGen/CGCXX.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGCXX.cpp?rev=77458&r1=77457&r2=77458&view=diff

==============================================================================
--- cfe/trunk/lib/CodeGen/CGCXX.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGCXX.cpp Wed Jul 29 10:54:56 2009
@@ -167,26 +167,10 @@
   const ASTRecordLayout &Layout = 
   getContext().getASTRecordLayout(ClassDecl);
   llvm::Type *I8Ptr = VMContext.getPointerTypeUnqual(llvm::Type::Int8Ty);
-  unsigned Idx = 0;
-  bool DerivedToBaseConversion = false;
-  for (CXXRecordDecl::base_class_const_iterator i = 
-         ClassDecl->bases_begin(),
-         e = ClassDecl->bases_end(); i != e; ++i, ++Idx) {
-    if (!i->isVirtual()) {
-        const CXXRecordDecl *Base =
-        cast<CXXRecordDecl>(i->getType()->getAsRecordType()->getDecl());
-      if (Base == BaseClassDecl) {
-        DerivedToBaseConversion = true;
-        break;
-      }
-    }
-  }
-  if (!DerivedToBaseConversion) {
-    assert(false && "FIXME - Only derived to imm. base convesion is supported");
-    return BaseValue;
-  }
-  uint64_t Offset = Layout.getFieldOffset(Idx) / 8;
-  llvm::Value *OffsetVal = llvm::ConstantInt::get(llvm::Type::Int32Ty, Offset);
+  uint64_t Offset = Layout.getBaseClassOffset(BaseClassDecl) / 8;
+  llvm::Value *OffsetVal = 
+    llvm::ConstantInt::get(
+                  CGM.getTypes().ConvertType(CGM.getContext().LongTy), Offset);
   BaseValue = Builder.CreateBitCast(BaseValue, I8Ptr);
   BaseValue = Builder.CreateGEP(BaseValue, OffsetVal, "add.ptr");
   QualType BTy =