Get rid of the ugly CGCXX names and replace them with CGClass, CGExprCXX and CGTemporaries.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89742 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 239 deletions

diff --git a/lib/CodeGen/CGCXXClass.cpp b/lib/CodeGen/CGCXXClass.cpp
deleted file mode 100644
index e122b95a73..0000000000
--- a/lib/CodeGen/CGCXXClass.cpp
+++ /dev/null
@@ -1,239 +0,0 @@
-//===--- CGCXXClass.cpp - Emit LLVM Code for C++ classes ------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This contains code dealing with C++ code generation of classes
-//
-//===----------------------------------------------------------------------===//
-
-#include "CodeGenFunction.h"
-#include "clang/AST/CXXInheritance.h"
-#include "clang/AST/RecordLayout.h"
-
-using namespace clang;
-using namespace CodeGen;
-
-static uint64_t 
-ComputeNonVirtualBaseClassOffset(ASTContext &Context, CXXBasePaths &Paths,
-                                 unsigned Start) {
-  uint64_t Offset = 0;
-
-  const CXXBasePath &Path = Paths.front();
-  for (unsigned i = Start, e = Path.size(); i != e; ++i) {
-    const CXXBasePathElement& Element = Path[i];
-
-    // Get the layout.
-    const ASTRecordLayout &Layout = Context.getASTRecordLayout(Element.Class);
-    
-    const CXXBaseSpecifier *BS = Element.Base;
-    // FIXME: enable test3 from virt.cc to not abort.
-    if (BS->isVirtual())
-      return 0;
-    assert(!BS->isVirtual() && "Should not see virtual bases here!");
-    
-    const CXXRecordDecl *Base = 
-      cast<CXXRecordDecl>(BS->getType()->getAs<RecordType>()->getDecl());
-    
-    // Add the offset.
-    Offset += Layout.getBaseClassOffset(Base) / 8;
-  }
-
-  return Offset;
-}
-
-llvm::Constant *
-CodeGenModule::GetCXXBaseClassOffset(const CXXRecordDecl *ClassDecl,
-                                     const CXXRecordDecl *BaseClassDecl) {
-  if (ClassDecl == BaseClassDecl)
-    return 0;
-
-  CXXBasePaths Paths(/*FindAmbiguities=*/false,
-                     /*RecordPaths=*/true, /*DetectVirtual=*/false);
-  if (!const_cast<CXXRecordDecl *>(ClassDecl)->
-        isDerivedFrom(const_cast<CXXRecordDecl *>(BaseClassDecl), Paths)) {
-    assert(false && "Class must be derived from the passed in base class!");
-    return 0;
-  }
-
-  uint64_t Offset = ComputeNonVirtualBaseClassOffset(getContext(), Paths, 0);
-  if (!Offset)
-    return 0;
-
-  const llvm::Type *PtrDiffTy = 
-    Types.ConvertType(getContext().getPointerDiffType());
-
-  return llvm::ConstantInt::get(PtrDiffTy, Offset);
-}
-
-static llvm::Value *GetCXXBaseClassOffset(CodeGenFunction &CGF,
-                                          llvm::Value *BaseValue,
-                                          const CXXRecordDecl *ClassDecl,
-                                          const CXXRecordDecl *BaseClassDecl) {
-  CXXBasePaths Paths(/*FindAmbiguities=*/false,
-                     /*RecordPaths=*/true, /*DetectVirtual=*/true);
-  if (!const_cast<CXXRecordDecl *>(ClassDecl)->
-        isDerivedFrom(const_cast<CXXRecordDecl *>(BaseClassDecl), Paths)) {
-    assert(false && "Class must be derived from the passed in base class!");
-    return 0;
-  }
-
-  unsigned Start = 0;
-  llvm::Value *VirtualOffset = 0;
-  if (const RecordType *RT = Paths.getDetectedVirtual()) {
-    const CXXRecordDecl *VBase = cast<CXXRecordDecl>(RT->getDecl());
-    
-    VirtualOffset = 
-      CGF.GetVirtualCXXBaseClassOffset(BaseValue, ClassDecl, VBase);
-    
-    const CXXBasePath &Path = Paths.front();
-    unsigned e = Path.size();
-    for (Start = 0; Start != e; ++Start) {
-      const CXXBasePathElement& Element = Path[Start];
-      
-      if (Element.Class == VBase)
-        break;
-    }
-  }
-  
-  uint64_t Offset = 
-    ComputeNonVirtualBaseClassOffset(CGF.getContext(), Paths, Start);
-  
-  if (!Offset)
-    return VirtualOffset;
-  
-  const llvm::Type *PtrDiffTy = 
-    CGF.ConvertType(CGF.getContext().getPointerDiffType());
-  llvm::Value *NonVirtualOffset = llvm::ConstantInt::get(PtrDiffTy, Offset);
-  
-  if (VirtualOffset)
-    return CGF.Builder.CreateAdd(VirtualOffset, NonVirtualOffset);
-                    
-  return NonVirtualOffset;
-}
-
-llvm::Value *
-CodeGenFunction::GetAddressOfBaseClass(llvm::Value *Value,
-                                       const CXXRecordDecl *ClassDecl,
-                                       const CXXRecordDecl *BaseClassDecl,
-                                       bool NullCheckValue) {
-  QualType BTy =
-    getContext().getCanonicalType(
-      getContext().getTypeDeclType(const_cast<CXXRecordDecl*>(BaseClassDecl)));
-  const llvm::Type *BasePtrTy = llvm::PointerType::getUnqual(ConvertType(BTy));
-
-  if (ClassDecl == BaseClassDecl) {
-    // Just cast back.
-    return Builder.CreateBitCast(Value, BasePtrTy);
-  }
-  
-  llvm::BasicBlock *CastNull = 0;
-  llvm::BasicBlock *CastNotNull = 0;
-  llvm::BasicBlock *CastEnd = 0;
-  
-  if (NullCheckValue) {
-    CastNull = createBasicBlock("cast.null");
-    CastNotNull = createBasicBlock("cast.notnull");
-    CastEnd = createBasicBlock("cast.end");
-    
-    llvm::Value *IsNull = 
-      Builder.CreateICmpEQ(Value,
-                           llvm::Constant::getNullValue(Value->getType()));
-    Builder.CreateCondBr(IsNull, CastNull, CastNotNull);
-    EmitBlock(CastNotNull);
-  }
-  
-  const llvm::Type *Int8PtrTy = llvm::Type::getInt8PtrTy(VMContext);
-
-  llvm::Value *Offset = 
-    GetCXXBaseClassOffset(*this, Value, ClassDecl, BaseClassDecl);
-  
-  if (Offset) {
-    // Apply the offset.
-    Value = Builder.CreateBitCast(Value, Int8PtrTy);
-    Value = Builder.CreateGEP(Value, Offset, "add.ptr");
-  }
-  
-  // Cast back.
-  Value = Builder.CreateBitCast(Value, BasePtrTy);
- 
-  if (NullCheckValue) {
-    Builder.CreateBr(CastEnd);
-    EmitBlock(CastNull);
-    Builder.CreateBr(CastEnd);
-    EmitBlock(CastEnd);
-    
-    llvm::PHINode *PHI = Builder.CreatePHI(Value->getType());
-    PHI->reserveOperandSpace(2);
-    PHI->addIncoming(Value, CastNotNull);
-    PHI->addIncoming(llvm::Constant::getNullValue(Value->getType()), 
-                     CastNull);
-    Value = PHI;
-  }
-  
-  return Value;
-}
-
-llvm::Value *
-CodeGenFunction::GetAddressOfDerivedClass(llvm::Value *Value,
-                                          const CXXRecordDecl *ClassDecl,
-                                          const CXXRecordDecl *DerivedClassDecl,
-                                          bool NullCheckValue) {
-  QualType DerivedTy =
-    getContext().getCanonicalType(
-    getContext().getTypeDeclType(const_cast<CXXRecordDecl*>(DerivedClassDecl)));
-  const llvm::Type *DerivedPtrTy = ConvertType(DerivedTy)->getPointerTo();
-  
-  if (ClassDecl == DerivedClassDecl) {
-    // Just cast back.
-    return Builder.CreateBitCast(Value, DerivedPtrTy);
-  }
-
-  llvm::BasicBlock *CastNull = 0;
-  llvm::BasicBlock *CastNotNull = 0;
-  llvm::BasicBlock *CastEnd = 0;
-  
-  if (NullCheckValue) {
-    CastNull = createBasicBlock("cast.null");
-    CastNotNull = createBasicBlock("cast.notnull");
-    CastEnd = createBasicBlock("cast.end");
-    
-    llvm::Value *IsNull = 
-    Builder.CreateICmpEQ(Value,
-                         llvm::Constant::getNullValue(Value->getType()));
-    Builder.CreateCondBr(IsNull, CastNull, CastNotNull);
-    EmitBlock(CastNotNull);
-  }
-  
-  llvm::Value *Offset = GetCXXBaseClassOffset(*this, Value, DerivedClassDecl,
-                                              ClassDecl);
-  if (Offset) {
-    // Apply the offset.
-    Value = Builder.CreatePtrToInt(Value, Offset->getType());
-    Value = Builder.CreateSub(Value, Offset);
-    Value = Builder.CreateIntToPtr(Value, DerivedPtrTy);
-  } else {
-    // Just cast.
-    Value = Builder.CreateBitCast(Value, DerivedPtrTy);
-  }
-
-  if (NullCheckValue) {
-    Builder.CreateBr(CastEnd);
-    EmitBlock(CastNull);
-    Builder.CreateBr(CastEnd);
-    EmitBlock(CastEnd);
-    
-    llvm::PHINode *PHI = Builder.CreatePHI(Value->getType());
-    PHI->reserveOperandSpace(2);
-    PHI->addIncoming(Value, CastNotNull);
-    PHI->addIncoming(llvm::Constant::getNullValue(Value->getType()), 
-                     CastNull);
-    Value = PHI;
-  }
-  
-  return Value;
-}