diff --git a/lib/CodeGen/CodeGenFunction.h b/lib/CodeGen/CodeGenFunction.h
new file mode 100644
index 0000000..0e601e5
--- /dev/null
+++ b/lib/CodeGen/CodeGenFunction.h
@@ -0,0 +1,1327 @@
+//===-- CodeGenFunction.h - Per-Function state for LLVM CodeGen -*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This is the internal per-function state used for llvm translation.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CLANG_CODEGEN_CODEGENFUNCTION_H
+#define CLANG_CODEGEN_CODEGENFUNCTION_H
+
+#include "clang/AST/Type.h"
+#include "clang/AST/ExprCXX.h"
+#include "clang/AST/ExprObjC.h"
+#include "clang/AST/CharUnits.h"
+#include "clang/Basic/TargetInfo.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/Support/ValueHandle.h"
+#include <map>
+#include "CodeGenModule.h"
+#include "CGBlocks.h"
+#include "CGBuilder.h"
+#include "CGCall.h"
+#include "CGCXX.h"
+#include "CGValue.h"
+
+namespace llvm {
+  class BasicBlock;
+  class LLVMContext;
+  class Module;
+  class SwitchInst;
+  class Twine;
+  class Value;
+}
+
+namespace clang {
+  class ASTContext;
+  class CXXDestructorDecl;
+  class CXXTryStmt;
+  class Decl;
+  class EnumConstantDecl;
+  class FunctionDecl;
+  class FunctionProtoType;
+  class LabelStmt;
+  class ObjCContainerDecl;
+  class ObjCInterfaceDecl;
+  class ObjCIvarDecl;
+  class ObjCMethodDecl;
+  class ObjCImplementationDecl;
+  class ObjCPropertyImplDecl;
+  class TargetInfo;
+  class VarDecl;
+  class ObjCForCollectionStmt;
+  class ObjCAtTryStmt;
+  class ObjCAtThrowStmt;
+  class ObjCAtSynchronizedStmt;
+
+namespace CodeGen {
+  class CodeGenModule;
+  class CodeGenTypes;
+  class CGDebugInfo;
+  class CGFunctionInfo;
+  class CGRecordLayout;
+
+/// CodeGenFunction - This class organizes the per-function state that is used
+/// while generating LLVM code.
+class CodeGenFunction : public BlockFunction {
+  CodeGenFunction(const CodeGenFunction&); // DO NOT IMPLEMENT
+  void operator=(const CodeGenFunction&);  // DO NOT IMPLEMENT
+public:
+  CodeGenModule &CGM;  // Per-module state.
+  const TargetInfo &Target;
+
+  typedef std::pair<llvm::Value *, llvm::Value *> ComplexPairTy;
+  CGBuilderTy Builder;
+
+  /// CurFuncDecl - Holds the Decl for the current function or ObjC method.
+  /// This excludes BlockDecls.
+  const Decl *CurFuncDecl;
+  /// CurCodeDecl - This is the inner-most code context, which includes blocks.
+  const Decl *CurCodeDecl;
+  const CGFunctionInfo *CurFnInfo;
+  QualType FnRetTy;
+  llvm::Function *CurFn;
+
+  /// CurGD - The GlobalDecl for the current function being compiled.
+  GlobalDecl CurGD;
+  /// OuterTryBlock - This is the address of the outter most try block, 0
+  /// otherwise.
+  const Stmt *OuterTryBlock;
+
+  /// ReturnBlock - Unified return block.
+  llvm::BasicBlock *ReturnBlock;
+  /// ReturnValue - The temporary alloca to hold the return value. This is null
+  /// iff the function has no return value.
+  llvm::Value *ReturnValue;
+
+  /// AllocaInsertPoint - This is an instruction in the entry block before which
+  /// we prefer to insert allocas.
+  llvm::AssertingVH<llvm::Instruction> AllocaInsertPt;
+
+  const llvm::Type *LLVMIntTy;
+  uint32_t LLVMPointerWidth;
+
+  bool Exceptions;
+  bool CatchUndefined;
+public:
+  /// ObjCEHValueStack - Stack of Objective-C exception values, used for
+  /// rethrows.
+  llvm::SmallVector<llvm::Value*, 8> ObjCEHValueStack;
+
+  /// PushCleanupBlock - Push a new cleanup entry on the stack and set the
+  /// passed in block as the cleanup block.
+  void PushCleanupBlock(llvm::BasicBlock *CleanupEntryBlock,
+                        llvm::BasicBlock *CleanupExitBlock,
+                        llvm::BasicBlock *PreviousInvokeDest,
+                        bool EHOnly = false);
+  void PushCleanupBlock(llvm::BasicBlock *CleanupEntryBlock) {
+    PushCleanupBlock(CleanupEntryBlock, 0, getInvokeDest(), false);
+  }
+
+  /// CleanupBlockInfo - A struct representing a popped cleanup block.
+  struct CleanupBlockInfo {
+    /// CleanupEntryBlock - the cleanup entry block
+    llvm::BasicBlock *CleanupBlock;
+
+    /// SwitchBlock - the block (if any) containing the switch instruction used
+    /// for jumping to the final destination.
+    llvm::BasicBlock *SwitchBlock;
+
+    /// EndBlock - the default destination for the switch instruction.
+    llvm::BasicBlock *EndBlock;
+
+    /// EHOnly - True iff this cleanup should only be performed on the
+    /// exceptional edge.
+    bool EHOnly;
+
+    CleanupBlockInfo(llvm::BasicBlock *cb, llvm::BasicBlock *sb,
+                     llvm::BasicBlock *eb, bool ehonly = false)
+      : CleanupBlock(cb), SwitchBlock(sb), EndBlock(eb), EHOnly(ehonly) {}
+  };
+
+  /// EHCleanupBlock - RAII object that will create a cleanup block for the
+  /// exceptional edge and set the insert point to that block.  When destroyed,
+  /// it creates the cleanup edge and sets the insert point to the previous
+  /// block.
+  class EHCleanupBlock {
+    CodeGenFunction& CGF;
+    llvm::BasicBlock *Cont;
+    llvm::BasicBlock *CleanupHandler;
+    llvm::BasicBlock *CleanupEntryBB;
+    llvm::BasicBlock *PreviousInvokeDest;
+  public:
+    EHCleanupBlock(CodeGenFunction &cgf) 
+      : CGF(cgf), Cont(CGF.createBasicBlock("cont")),
+        CleanupHandler(CGF.createBasicBlock("ehcleanup")),
+        CleanupEntryBB(CGF.createBasicBlock("ehcleanup.rest")),
+        PreviousInvokeDest(CGF.getInvokeDest()) {
+      CGF.EmitBranch(Cont);
+      llvm::BasicBlock *TerminateHandler = CGF.getTerminateHandler();
+      CGF.Builder.SetInsertPoint(CleanupEntryBB);
+      CGF.setInvokeDest(TerminateHandler);
+    }
+    ~EHCleanupBlock();
+  };
+
+  /// PopCleanupBlock - Will pop the cleanup entry on the stack, process all
+  /// branch fixups and return a block info struct with the switch block and end
+  /// block.  This will also reset the invoke handler to the previous value
+  /// from when the cleanup block was created.
+  CleanupBlockInfo PopCleanupBlock();
+
+  /// DelayedCleanupBlock - RAII object that will create a cleanup block and set
+  /// the insert point to that block. When destructed, it sets the insert point
+  /// to the previous block and pushes a new cleanup entry on the stack.
+  class DelayedCleanupBlock {
+    CodeGenFunction& CGF;
+    llvm::BasicBlock *CurBB;
+    llvm::BasicBlock *CleanupEntryBB;
+    llvm::BasicBlock *CleanupExitBB;
+    llvm::BasicBlock *CurInvokeDest;
+    bool EHOnly;
+    
+  public:
+    DelayedCleanupBlock(CodeGenFunction &cgf, bool ehonly = false)
+      : CGF(cgf), CurBB(CGF.Builder.GetInsertBlock()),
+        CleanupEntryBB(CGF.createBasicBlock("cleanup")), CleanupExitBB(0),
+        CurInvokeDest(CGF.getInvokeDest()),
+        EHOnly(ehonly) {
+      CGF.Builder.SetInsertPoint(CleanupEntryBB);
+    }
+
+    llvm::BasicBlock *getCleanupExitBlock() {
+      if (!CleanupExitBB)
+        CleanupExitBB = CGF.createBasicBlock("cleanup.exit");
+      return CleanupExitBB;
+    }
+    
+    ~DelayedCleanupBlock() {
+      CGF.PushCleanupBlock(CleanupEntryBB, CleanupExitBB, CurInvokeDest,
+                           EHOnly);
+      // FIXME: This is silly, move this into the builder.
+      if (CurBB)
+        CGF.Builder.SetInsertPoint(CurBB);
+      else
+        CGF.Builder.ClearInsertionPoint();
+    }
+  };
+
+  /// \brief Enters a new scope for capturing cleanups, all of which will be
+  /// executed once the scope is exited.
+  class CleanupScope {
+    CodeGenFunction& CGF;
+    size_t CleanupStackDepth;
+    bool OldDidCallStackSave;
+    bool PerformCleanup;
+
+    CleanupScope(const CleanupScope &); // DO NOT IMPLEMENT
+    CleanupScope &operator=(const CleanupScope &); // DO NOT IMPLEMENT
+
+  public:
+    /// \brief Enter a new cleanup scope.
+    explicit CleanupScope(CodeGenFunction &CGF) 
+      : CGF(CGF), PerformCleanup(true) 
+    {
+      CleanupStackDepth = CGF.CleanupEntries.size();
+      OldDidCallStackSave = CGF.DidCallStackSave;
+    }
+
+    /// \brief Exit this cleanup scope, emitting any accumulated
+    /// cleanups.
+    ~CleanupScope() {
+      if (PerformCleanup) {
+        CGF.DidCallStackSave = OldDidCallStackSave;
+        CGF.EmitCleanupBlocks(CleanupStackDepth);
+      }
+    }
+
+    /// \brief Determine whether this scope requires any cleanups.
+    bool requiresCleanups() const {
+      return CGF.CleanupEntries.size() > CleanupStackDepth;
+    }
+
+    /// \brief Force the emission of cleanups now, instead of waiting
+    /// until this object is destroyed.
+    void ForceCleanup() {
+      assert(PerformCleanup && "Already forced cleanup");
+      CGF.DidCallStackSave = OldDidCallStackSave;
+      CGF.EmitCleanupBlocks(CleanupStackDepth);
+      PerformCleanup = false;
+    }
+  };
+
+  /// EmitCleanupBlocks - Takes the old cleanup stack size and emits the cleanup
+  /// blocks that have been added.
+  void EmitCleanupBlocks(size_t OldCleanupStackSize);
+
+  /// EmitBranchThroughCleanup - Emit a branch from the current insert block
+  /// through the cleanup handling code (if any) and then on to \arg Dest.
+  ///
+  /// FIXME: Maybe this should really be in EmitBranch? Don't we always want
+  /// this behavior for branches?
+  void EmitBranchThroughCleanup(llvm::BasicBlock *Dest);
+
+  /// BeginConditionalBranch - Should be called before a conditional part of an
+  /// expression is emitted. For example, before the RHS of the expression below
+  /// is emitted:
+  ///
+  /// b && f(T());
+  ///
+  /// This is used to make sure that any temporaries created in the conditional
+  /// branch are only destroyed if the branch is taken.
+  void BeginConditionalBranch() {
+    ++ConditionalBranchLevel;
+  }
+
+  /// EndConditionalBranch - Should be called after a conditional part of an
+  /// expression has been emitted.
+  void EndConditionalBranch() {
+    assert(ConditionalBranchLevel != 0 &&
+           "Conditional branch mismatch!");
+    
+    --ConditionalBranchLevel;
+  }
+
+private:
+  CGDebugInfo *DebugInfo;
+
+  /// IndirectBranch - The first time an indirect goto is seen we create a block
+  /// with an indirect branch.  Every time we see the address of a label taken,
+  /// we add the label to the indirect goto.  Every subsequent indirect goto is
+  /// codegen'd as a jump to the IndirectBranch's basic block.
+  llvm::IndirectBrInst *IndirectBranch;
+
+  /// LocalDeclMap - This keeps track of the LLVM allocas or globals for local C
+  /// decls.
+  llvm::DenseMap<const Decl*, llvm::Value*> LocalDeclMap;
+
+  /// LabelMap - This keeps track of the LLVM basic block for each C label.
+  llvm::DenseMap<const LabelStmt*, llvm::BasicBlock*> LabelMap;
+
+  // BreakContinueStack - This keeps track of where break and continue
+  // statements should jump to.
+  struct BreakContinue {
+    BreakContinue(llvm::BasicBlock *bb, llvm::BasicBlock *cb)
+      : BreakBlock(bb), ContinueBlock(cb) {}
+
+    llvm::BasicBlock *BreakBlock;
+    llvm::BasicBlock *ContinueBlock;
+  };
+  llvm::SmallVector<BreakContinue, 8> BreakContinueStack;
+
+  /// SwitchInsn - This is nearest current switch instruction. It is null if if
+  /// current context is not in a switch.
+  llvm::SwitchInst *SwitchInsn;
+
+  /// CaseRangeBlock - This block holds if condition check for last case
+  /// statement range in current switch instruction.
+  llvm::BasicBlock *CaseRangeBlock;
+
+  /// InvokeDest - This is the nearest exception target for calls
+  /// which can unwind, when exceptions are being used.
+  llvm::BasicBlock *InvokeDest;
+
+  // VLASizeMap - This keeps track of the associated size for each VLA type.
+  // We track this by the size expression rather than the type itself because
+  // in certain situations, like a const qualifier applied to an VLA typedef,
+  // multiple VLA types can share the same size expression.
+  // FIXME: Maybe this could be a stack of maps that is pushed/popped as we
+  // enter/leave scopes.
+  llvm::DenseMap<const Expr*, llvm::Value*> VLASizeMap;
+
+  /// DidCallStackSave - Whether llvm.stacksave has been called. Used to avoid
+  /// calling llvm.stacksave for multiple VLAs in the same scope.
+  bool DidCallStackSave;
+
+  struct CleanupEntry {
+    /// CleanupEntryBlock - The block of code that does the actual cleanup.
+    llvm::BasicBlock *CleanupEntryBlock;
+
+    /// CleanupExitBlock - The cleanup exit block.
+    llvm::BasicBlock *CleanupExitBlock;
+    
+    /// Blocks - Basic blocks that were emitted in the current cleanup scope.
+    std::vector<llvm::BasicBlock *> Blocks;
+
+    /// BranchFixups - Branch instructions to basic blocks that haven't been
+    /// inserted into the current function yet.
+    std::vector<llvm::BranchInst *> BranchFixups;
+
+    /// PreviousInvokeDest - The invoke handler from the start of the cleanup
+    /// region.
+    llvm::BasicBlock *PreviousInvokeDest;
+
+    /// EHOnly - Perform this only on the exceptional edge, not the main edge.
+    bool EHOnly;
+
+    explicit CleanupEntry(llvm::BasicBlock *CleanupEntryBlock,
+                          llvm::BasicBlock *CleanupExitBlock,
+                          llvm::BasicBlock *PreviousInvokeDest,
+                          bool ehonly)
+      : CleanupEntryBlock(CleanupEntryBlock),
+        CleanupExitBlock(CleanupExitBlock),
+        PreviousInvokeDest(PreviousInvokeDest),
+        EHOnly(ehonly) {}
+  };
+
+  /// CleanupEntries - Stack of cleanup entries.
+  llvm::SmallVector<CleanupEntry, 8> CleanupEntries;
+
+  typedef llvm::DenseMap<llvm::BasicBlock*, size_t> BlockScopeMap;
+
+  /// BlockScopes - Map of which "cleanup scope" scope basic blocks have.
+  BlockScopeMap BlockScopes;
+
+  /// CXXThisDecl - When generating code for a C++ member function,
+  /// this will hold the implicit 'this' declaration.
+  ImplicitParamDecl *CXXThisDecl;
+
+  /// CXXVTTDecl - When generating code for a base object constructor or
+  /// base object destructor with virtual bases, this will hold the implicit
+  /// VTT parameter.
+  ImplicitParamDecl *CXXVTTDecl;
+  
+  /// CXXLiveTemporaryInfo - Holds information about a live C++ temporary.
+  struct CXXLiveTemporaryInfo {
+    /// Temporary - The live temporary.
+    const CXXTemporary *Temporary;
+
+    /// ThisPtr - The pointer to the temporary.
+    llvm::Value *ThisPtr;
+
+    /// DtorBlock - The destructor block.
+    llvm::BasicBlock *DtorBlock;
+
+    /// CondPtr - If this is a conditional temporary, this is the pointer to the
+    /// condition variable that states whether the destructor should be called
+    /// or not.
+    llvm::Value *CondPtr;
+
+    CXXLiveTemporaryInfo(const CXXTemporary *temporary,
+                         llvm::Value *thisptr, llvm::BasicBlock *dtorblock,
+                         llvm::Value *condptr)
+      : Temporary(temporary), ThisPtr(thisptr), DtorBlock(dtorblock),
+      CondPtr(condptr) { }
+  };
+
+  llvm::SmallVector<CXXLiveTemporaryInfo, 4> LiveTemporaries;
+
+  /// ConditionalBranchLevel - Contains the nesting level of the current
+  /// conditional branch. This is used so that we know if a temporary should be
+  /// destroyed conditionally.
+  unsigned ConditionalBranchLevel;
+
+
+  /// ByrefValueInfoMap - For each __block variable, contains a pair of the LLVM
+  /// type as well as the field number that contains the actual data.
+  llvm::DenseMap<const ValueDecl *, std::pair<const llvm::Type *, 
+                                              unsigned> > ByRefValueInfo;
+  
+  /// getByrefValueFieldNumber - Given a declaration, returns the LLVM field
+  /// number that holds the value.
+  unsigned getByRefValueLLVMField(const ValueDecl *VD) const;
+
+  llvm::BasicBlock *TerminateHandler;
+  llvm::BasicBlock *TrapBB;
+
+  int UniqueAggrDestructorCount;
+public:
+  CodeGenFunction(CodeGenModule &cgm);
+
+  ASTContext &getContext() const;
+  CGDebugInfo *getDebugInfo() { return DebugInfo; }
+
+  llvm::BasicBlock *getInvokeDest() { return InvokeDest; }
+  void setInvokeDest(llvm::BasicBlock *B) { InvokeDest = B; }
+
+  llvm::LLVMContext &getLLVMContext() { return VMContext; }
+
+  //===--------------------------------------------------------------------===//
+  //                                  Objective-C
+  //===--------------------------------------------------------------------===//
+
+  void GenerateObjCMethod(const ObjCMethodDecl *OMD);
+
+  void StartObjCMethod(const ObjCMethodDecl *MD,
+                       const ObjCContainerDecl *CD);
+
+  /// GenerateObjCGetter - Synthesize an Objective-C property getter function.
+  void GenerateObjCGetter(ObjCImplementationDecl *IMP,
+                          const ObjCPropertyImplDecl *PID);
+
+  /// GenerateObjCSetter - Synthesize an Objective-C property setter function
+  /// for the given property.
+  void GenerateObjCSetter(ObjCImplementationDecl *IMP,
+                          const ObjCPropertyImplDecl *PID);
+
+  //===--------------------------------------------------------------------===//
+  //                                  Block Bits
+  //===--------------------------------------------------------------------===//
+
+  llvm::Value *BuildBlockLiteralTmp(const BlockExpr *);
+  llvm::Constant *BuildDescriptorBlockDecl(bool BlockHasCopyDispose,
+                                           CharUnits Size,
+                                           const llvm::StructType *,
+                                           std::vector<HelperInfo> *);
+
+  llvm::Function *GenerateBlockFunction(const BlockExpr *BExpr,
+                                        const BlockInfo& Info,
+                                        const Decl *OuterFuncDecl,
+                                  llvm::DenseMap<const Decl*, llvm::Value*> ldm,
+                                        CharUnits &Size, CharUnits &Align,
+                      llvm::SmallVector<const Expr *, 8> &subBlockDeclRefDecls,
+                                        bool &subBlockHasCopyDispose);
+
+  void BlockForwardSelf();
+  llvm::Value *LoadBlockStruct();
+
+  CharUnits AllocateBlockDecl(const BlockDeclRefExpr *E);
+  llvm::Value *GetAddrOfBlockDecl(const BlockDeclRefExpr *E);
+  const llvm::Type *BuildByRefType(const ValueDecl *D);
+
+  void GenerateCode(GlobalDecl GD, llvm::Function *Fn);
+  void StartFunction(GlobalDecl GD, QualType RetTy,
+                     llvm::Function *Fn,
+                     const FunctionArgList &Args,
+                     SourceLocation StartLoc);
+
+  /// EmitReturnBlock - Emit the unified return block, trying to avoid its
+  /// emission when possible.
+  void EmitReturnBlock();
+
+  /// FinishFunction - Complete IR generation of the current function. It is
+  /// legal to call this function even if there is no current insertion point.
+  void FinishFunction(SourceLocation EndLoc=SourceLocation());
+
+  /// DynamicTypeAdjust - Do the non-virtual and virtual adjustments on an
+  /// object pointer to alter the dynamic type of the pointer.  Used by
+  /// GenerateCovariantThunk for building thunks.
+  llvm::Value *DynamicTypeAdjust(llvm::Value *V, 
+                                 const ThunkAdjustment &Adjustment);
+
+  /// GenerateThunk - Generate a thunk for the given method
+  llvm::Constant *GenerateThunk(llvm::Function *Fn, GlobalDecl GD,
+                                bool Extern, 
+                                const ThunkAdjustment &ThisAdjustment);
+  llvm::Constant *
+  GenerateCovariantThunk(llvm::Function *Fn, GlobalDecl GD,
+                         bool Extern,
+                         const CovariantThunkAdjustment &Adjustment);
+
+  void EmitCtorPrologue(const CXXConstructorDecl *CD, CXXCtorType Type);
+
+  void InitializeVtablePtrs(const CXXRecordDecl *ClassDecl);
+
+  void InitializeVtablePtrsRecursive(const CXXRecordDecl *ClassDecl,
+                                     llvm::Constant *Vtable,
+                                     CGVtableInfo::AddrSubMap_t& AddressPoints,
+                                     llvm::Value *ThisPtr,
+                                     uint64_t Offset);
+
+  void SynthesizeCXXCopyConstructor(const CXXConstructorDecl *Ctor,
+                                    CXXCtorType Type,
+                                    llvm::Function *Fn,
+                                    const FunctionArgList &Args);
+
+  void SynthesizeCXXCopyAssignment(const CXXMethodDecl *CD,
+                                   llvm::Function *Fn,
+                                   const FunctionArgList &Args);
+
+  void SynthesizeDefaultConstructor(const CXXConstructorDecl *Ctor,
+                                    CXXCtorType Type,
+                                    llvm::Function *Fn,
+                                    const FunctionArgList &Args);
+
+  void SynthesizeDefaultDestructor(const CXXDestructorDecl *Dtor,
+                                   CXXDtorType Type,
+                                   llvm::Function *Fn,
+                                   const FunctionArgList &Args);
+
+  /// EmitDtorEpilogue - Emit all code that comes at the end of class's
+  /// destructor. This is to call destructors on members and base classes in
+  /// reverse order of their construction.
+  void EmitDtorEpilogue(const CXXDestructorDecl *Dtor,
+                        CXXDtorType Type);
+
+  /// EmitFunctionProlog - Emit the target specific LLVM code to load the
+  /// arguments for the given function. This is also responsible for naming the
+  /// LLVM function arguments.
+  void EmitFunctionProlog(const CGFunctionInfo &FI,
+                          llvm::Function *Fn,
+                          const FunctionArgList &Args);
+
+  /// EmitFunctionEpilog - Emit the target specific LLVM code to return the
+  /// given temporary.
+  void EmitFunctionEpilog(const CGFunctionInfo &FI, llvm::Value *ReturnValue);
+
+  /// EmitStartEHSpec - Emit the start of the exception spec.
+  void EmitStartEHSpec(const Decl *D);
+
+  /// EmitEndEHSpec - Emit the end of the exception spec.
+  void EmitEndEHSpec(const Decl *D);
+
+  /// getTerminateHandler - Return a handler that just calls terminate.
+  llvm::BasicBlock *getTerminateHandler();
+
+  const llvm::Type *ConvertTypeForMem(QualType T);
+  const llvm::Type *ConvertType(QualType T);
+
+  /// LoadObjCSelf - Load the value of self. This function is only valid while
+  /// generating code for an Objective-C method.
+  llvm::Value *LoadObjCSelf();
+
+  /// TypeOfSelfObject - Return type of object that this self represents.
+  QualType TypeOfSelfObject();
+
+  /// hasAggregateLLVMType - Return true if the specified AST type will map into
+  /// an aggregate LLVM type or is void.
+  static bool hasAggregateLLVMType(QualType T);
+
+  /// createBasicBlock - Create an LLVM basic block.
+  llvm::BasicBlock *createBasicBlock(const char *Name="",
+                                     llvm::Function *Parent=0,
+                                     llvm::BasicBlock *InsertBefore=0) {
+#ifdef NDEBUG
+    return llvm::BasicBlock::Create(VMContext, "", Parent, InsertBefore);
+#else
+    return llvm::BasicBlock::Create(VMContext, Name, Parent, InsertBefore);
+#endif
+  }
+
+  /// getBasicBlockForLabel - Return the LLVM basicblock that the specified
+  /// label maps to.
+  llvm::BasicBlock *getBasicBlockForLabel(const LabelStmt *S);
+
+  /// SimplifyForwardingBlocks - If the given basic block is only a branch to
+  /// another basic block, simplify it. This assumes that no other code could
+  /// potentially reference the basic block.
+  void SimplifyForwardingBlocks(llvm::BasicBlock *BB);
+
+  /// EmitBlock - Emit the given block \arg BB and set it as the insert point,
+  /// adding a fall-through branch from the current insert block if
+  /// necessary. It is legal to call this function even if there is no current
+  /// insertion point.
+  ///
+  /// IsFinished - If true, indicates that the caller has finished emitting
+  /// branches to the given block and does not expect to emit code into it. This
+  /// means the block can be ignored if it is unreachable.
+  void EmitBlock(llvm::BasicBlock *BB, bool IsFinished=false);
+
+  /// EmitBranch - Emit a branch to the specified basic block from the current
+  /// insert block, taking care to avoid creation of branches from dummy
+  /// blocks. It is legal to call this function even if there is no current
+  /// insertion point.
+  ///
+  /// This function clears the current insertion point. The caller should follow
+  /// calls to this function with calls to Emit*Block prior to generation new
+  /// code.
+  void EmitBranch(llvm::BasicBlock *Block);
+
+  /// HaveInsertPoint - True if an insertion point is defined. If not, this
+  /// indicates that the current code being emitted is unreachable.
+  bool HaveInsertPoint() const {
+    return Builder.GetInsertBlock() != 0;
+  }
+
+  /// EnsureInsertPoint - Ensure that an insertion point is defined so that
+  /// emitted IR has a place to go. Note that by definition, if this function
+  /// creates a block then that block is unreachable; callers may do better to
+  /// detect when no insertion point is defined and simply skip IR generation.
+  void EnsureInsertPoint() {
+    if (!HaveInsertPoint())
+      EmitBlock(createBasicBlock());
+  }
+
+  /// ErrorUnsupported - Print out an error that codegen doesn't support the
+  /// specified stmt yet.
+  void ErrorUnsupported(const Stmt *S, const char *Type,
+                        bool OmitOnError=false);
+
+  //===--------------------------------------------------------------------===//
+  //                                  Helpers
+  //===--------------------------------------------------------------------===//
+
+  Qualifiers MakeQualifiers(QualType T) {
+    Qualifiers Quals = getContext().getCanonicalType(T).getQualifiers();
+    Quals.setObjCGCAttr(getContext().getObjCGCAttrKind(T));
+    return Quals;
+  }
+
+  /// CreateTempAlloca - This creates a alloca and inserts it into the entry
+  /// block. The caller is responsible for setting an appropriate alignment on
+  /// the alloca.
+  llvm::AllocaInst *CreateTempAlloca(const llvm::Type *Ty,
+                                     const llvm::Twine &Name = "tmp");
+
+  /// CreateMemTemp - Create a temporary memory object of the given type, with
+  /// appropriate alignment.
+  llvm::Value *CreateMemTemp(QualType T, const llvm::Twine &Name = "tmp");
+
+  /// EvaluateExprAsBool - Perform the usual unary conversions on the specified
+  /// expression and compare the result against zero, returning an Int1Ty value.
+  llvm::Value *EvaluateExprAsBool(const Expr *E);
+
+  /// EmitAnyExpr - Emit code to compute the specified expression which can have
+  /// any type.  The result is returned as an RValue struct.  If this is an
+  /// aggregate expression, the aggloc/agglocvolatile arguments indicate where
+  /// the result should be returned.
+  ///
+  /// \param IgnoreResult - True if the resulting value isn't used.
+  RValue EmitAnyExpr(const Expr *E, llvm::Value *AggLoc = 0,
+                     bool IsAggLocVolatile = false, bool IgnoreResult = false,
+                     bool IsInitializer = false);
+
+  // EmitVAListRef - Emit a "reference" to a va_list; this is either the address
+  // or the value of the expression, depending on how va_list is defined.
+  llvm::Value *EmitVAListRef(const Expr *E);
+
+  /// EmitAnyExprToTemp - Similary to EmitAnyExpr(), however, the result will
+  /// always be accessible even if no aggregate location is provided.
+  RValue EmitAnyExprToTemp(const Expr *E, bool IsAggLocVolatile = false,
+                           bool IsInitializer = false);
+
+  /// EmitAggregateCopy - Emit an aggrate copy.
+  ///
+  /// \param isVolatile - True iff either the source or the destination is
+  /// volatile.
+  void EmitAggregateCopy(llvm::Value *DestPtr, llvm::Value *SrcPtr,
+                         QualType EltTy, bool isVolatile=false);
+
+  void EmitAggregateClear(llvm::Value *DestPtr, QualType Ty);
+
+  /// StartBlock - Start new block named N. If insert block is a dummy block
+  /// then reuse it.
+  void StartBlock(const char *N);
+
+  /// GetAddrOfStaticLocalVar - Return the address of a static local variable.
+  llvm::Constant *GetAddrOfStaticLocalVar(const VarDecl *BVD);
+
+  /// GetAddrOfLocalVar - Return the address of a local variable.
+  llvm::Value *GetAddrOfLocalVar(const VarDecl *VD);
+
+  /// getAccessedFieldNo - Given an encoded value and a result number, return
+  /// the input field number being accessed.
+  static unsigned getAccessedFieldNo(unsigned Idx, const llvm::Constant *Elts);
+
+  llvm::BlockAddress *GetAddrOfLabel(const LabelStmt *L);
+  llvm::BasicBlock *GetIndirectGotoBlock();
+
+  /// EmitMemSetToZero - Generate code to memset a value of the given type to 0.
+  void EmitMemSetToZero(llvm::Value *DestPtr, QualType Ty);
+
+  // EmitVAArg - Generate code to get an argument from the passed in pointer
+  // and update it accordingly. The return value is a pointer to the argument.
+  // FIXME: We should be able to get rid of this method and use the va_arg
+  // instruction in LLVM instead once it works well enough.
+  llvm::Value *EmitVAArg(llvm::Value *VAListAddr, QualType Ty);
+
+  /// EmitVLASize - Generate code for any VLA size expressions that might occur
+  /// in a variably modified type. If Ty is a VLA, will return the value that
+  /// corresponds to the size in bytes of the VLA type. Will return 0 otherwise.
+  ///
+  /// This function can be called with a null (unreachable) insert point.
+  llvm::Value *EmitVLASize(QualType Ty);
+
+  // GetVLASize - Returns an LLVM value that corresponds to the size in bytes
+  // of a variable length array type.
+  llvm::Value *GetVLASize(const VariableArrayType *);
+
+  /// LoadCXXThis - Load the value of 'this'. This function is only valid while
+  /// generating code for an C++ member function.
+  llvm::Value *LoadCXXThis();
+
+  /// LoadCXXVTT - Load the VTT parameter to base constructors/destructors have
+  /// virtual bases.
+  llvm::Value *LoadCXXVTT();
+  
+  /// GetAddressOfBaseClass - This function will add the necessary delta to the
+  /// load of 'this' and returns address of the base class.
+  // FIXME. This currently only does a derived to non-virtual base conversion.
+  // Other kinds of conversions will come later.
+  llvm::Value *GetAddressOfBaseClass(llvm::Value *Value,
+                                     const CXXRecordDecl *ClassDecl,
+                                     const CXXRecordDecl *BaseClassDecl,
+                                     bool NullCheckValue);
+  
+  llvm::Value *GetAddressOfDerivedClass(llvm::Value *Value,
+                                        const CXXRecordDecl *ClassDecl,
+                                        const CXXRecordDecl *DerivedClassDecl,
+                                        bool NullCheckValue);
+
+  llvm::Value *GetVirtualBaseClassOffset(llvm::Value *This,
+                                         const CXXRecordDecl *ClassDecl,
+                                         const CXXRecordDecl *BaseClassDecl);
+    
+  void EmitClassAggrMemberwiseCopy(llvm::Value *DestValue,
+                                   llvm::Value *SrcValue,
+                                   const ArrayType *Array,
+                                   const CXXRecordDecl *BaseClassDecl,
+                                   QualType Ty);
+
+  void EmitClassAggrCopyAssignment(llvm::Value *DestValue,
+                                   llvm::Value *SrcValue,
+                                   const ArrayType *Array,
+                                   const CXXRecordDecl *BaseClassDecl,
+                                   QualType Ty);
+
+  void EmitClassMemberwiseCopy(llvm::Value *DestValue, llvm::Value *SrcValue,
+                               const CXXRecordDecl *ClassDecl,
+                               const CXXRecordDecl *BaseClassDecl,
+                               QualType Ty);
+
+  void EmitClassCopyAssignment(llvm::Value *DestValue, llvm::Value *SrcValue,
+                               const CXXRecordDecl *ClassDecl,
+                               const CXXRecordDecl *BaseClassDecl,
+                               QualType Ty);
+
+  void EmitCXXConstructorCall(const CXXConstructorDecl *D, CXXCtorType Type,
+                              llvm::Value *This,
+                              CallExpr::const_arg_iterator ArgBeg,
+                              CallExpr::const_arg_iterator ArgEnd);
+
+  void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D,
+                                  const ConstantArrayType *ArrayTy,
+                                  llvm::Value *ArrayPtr,
+                                  CallExpr::const_arg_iterator ArgBeg,
+                                  CallExpr::const_arg_iterator ArgEnd);
+  
+  void EmitCXXAggrConstructorCall(const CXXConstructorDecl *D,
+                                  llvm::Value *NumElements,
+                                  llvm::Value *ArrayPtr,
+                                  CallExpr::const_arg_iterator ArgBeg,
+                                  CallExpr::const_arg_iterator ArgEnd);
+
+  void EmitCXXAggrDestructorCall(const CXXDestructorDecl *D,
+                                 const ArrayType *Array,
+                                 llvm::Value *This);
+
+  void EmitCXXAggrDestructorCall(const CXXDestructorDecl *D,
+                                 llvm::Value *NumElements,
+                                 llvm::Value *This);
+
+  llvm::Constant *GenerateCXXAggrDestructorHelper(const CXXDestructorDecl *D,
+                                                const ArrayType *Array,
+                                                llvm::Value *This);
+
+  void EmitCXXDestructorCall(const CXXDestructorDecl *D, CXXDtorType Type,
+                             llvm::Value *This);
+
+  void PushCXXTemporary(const CXXTemporary *Temporary, llvm::Value *Ptr);
+  void PopCXXTemporary();
+
+  llvm::Value *EmitCXXNewExpr(const CXXNewExpr *E);
+  void EmitCXXDeleteExpr(const CXXDeleteExpr *E);
+
+  void EmitDeleteCall(const FunctionDecl *DeleteFD, llvm::Value *Ptr,
+                      QualType DeleteTy);
+
+  llvm::Value* EmitCXXTypeidExpr(const CXXTypeidExpr *E);
+  llvm::Value *EmitDynamicCast(llvm::Value *V, const CXXDynamicCastExpr *DCE);
+
+  void EmitCheck(llvm::Value *, unsigned Size);
+
+  llvm::Value *EmitScalarPrePostIncDec(const UnaryOperator *E, LValue LV,
+                                       bool isInc, bool isPre);
+  ComplexPairTy EmitComplexPrePostIncDec(const UnaryOperator *E, LValue LV,
+                                         bool isInc, bool isPre);
+  //===--------------------------------------------------------------------===//
+  //                            Declaration Emission
+  //===--------------------------------------------------------------------===//
+
+  /// EmitDecl - Emit a declaration.
+  ///
+  /// This function can be called with a null (unreachable) insert point.
+  void EmitDecl(const Decl &D);
+
+  /// EmitBlockVarDecl - Emit a block variable declaration.
+  ///
+  /// This function can be called with a null (unreachable) insert point.
+  void EmitBlockVarDecl(const VarDecl &D);
+
+  /// EmitLocalBlockVarDecl - Emit a local block variable declaration.
+  ///
+  /// This function can be called with a null (unreachable) insert point.
+  void EmitLocalBlockVarDecl(const VarDecl &D);
+
+  void EmitStaticBlockVarDecl(const VarDecl &D,
+                              llvm::GlobalValue::LinkageTypes Linkage);
+
+  /// EmitParmDecl - Emit a ParmVarDecl or an ImplicitParamDecl.
+  void EmitParmDecl(const VarDecl &D, llvm::Value *Arg);
+
+  //===--------------------------------------------------------------------===//
+  //                             Statement Emission
+  //===--------------------------------------------------------------------===//
+
+  /// EmitStopPoint - Emit a debug stoppoint if we are emitting debug info.
+  void EmitStopPoint(const Stmt *S);
+
+  /// EmitStmt - Emit the code for the statement \arg S. It is legal to call
+  /// this function even if there is no current insertion point.
+  ///
+  /// This function may clear the current insertion point; callers should use
+  /// EnsureInsertPoint if they wish to subsequently generate code without first
+  /// calling EmitBlock, EmitBranch, or EmitStmt.
+  void EmitStmt(const Stmt *S);
+
+  /// EmitSimpleStmt - Try to emit a "simple" statement which does not
+  /// necessarily require an insertion point or debug information; typically
+  /// because the statement amounts to a jump or a container of other
+  /// statements.
+  ///
+  /// \return True if the statement was handled.
+  bool EmitSimpleStmt(const Stmt *S);
+
+  RValue EmitCompoundStmt(const CompoundStmt &S, bool GetLast = false,
+                          llvm::Value *AggLoc = 0, bool isAggVol = false);
+
+  /// EmitLabel - Emit the block for the given label. It is legal to call this
+  /// function even if there is no current insertion point.
+  void EmitLabel(const LabelStmt &S); // helper for EmitLabelStmt.
+
+  void EmitLabelStmt(const LabelStmt &S);
+  void EmitGotoStmt(const GotoStmt &S);
+  void EmitIndirectGotoStmt(const IndirectGotoStmt &S);
+  void EmitIfStmt(const IfStmt &S);
+  void EmitWhileStmt(const WhileStmt &S);
+  void EmitDoStmt(const DoStmt &S);
+  void EmitForStmt(const ForStmt &S);
+  void EmitReturnStmt(const ReturnStmt &S);
+  void EmitDeclStmt(const DeclStmt &S);
+  void EmitBreakStmt(const BreakStmt &S);
+  void EmitContinueStmt(const ContinueStmt &S);
+  void EmitSwitchStmt(const SwitchStmt &S);
+  void EmitDefaultStmt(const DefaultStmt &S);
+  void EmitCaseStmt(const CaseStmt &S);
+  void EmitCaseStmtRange(const CaseStmt &S);
+  void EmitAsmStmt(const AsmStmt &S);
+
+  void EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S);
+  void EmitObjCAtTryStmt(const ObjCAtTryStmt &S);
+  void EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S);
+  void EmitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt &S);
+
+  void EmitCXXTryStmt(const CXXTryStmt &S);
+  
+  //===--------------------------------------------------------------------===//
+  //                         LValue Expression Emission
+  //===--------------------------------------------------------------------===//
+
+  /// GetUndefRValue - Get an appropriate 'undef' rvalue for the given type.
+  RValue GetUndefRValue(QualType Ty);
+
+  /// EmitUnsupportedRValue - Emit a dummy r-value using the type of E
+  /// and issue an ErrorUnsupported style diagnostic (using the
+  /// provided Name).
+  RValue EmitUnsupportedRValue(const Expr *E,
+                               const char *Name);
+
+  /// EmitUnsupportedLValue - Emit a dummy l-value using the type of E and issue
+  /// an ErrorUnsupported style diagnostic (using the provided Name).
+  LValue EmitUnsupportedLValue(const Expr *E,
+                               const char *Name);
+
+  /// EmitLValue - Emit code to compute a designator that specifies the location
+  /// of the expression.
+  ///
+  /// This can return one of two things: a simple address or a bitfield
+  /// reference.  In either case, the LLVM Value* in the LValue structure is
+  /// guaranteed to be an LLVM pointer type.
+  ///
+  /// If this returns a bitfield reference, nothing about the pointee type of
+  /// the LLVM value is known: For example, it may not be a pointer to an
+  /// integer.
+  ///
+  /// If this returns a normal address, and if the lvalue's C type is fixed
+  /// size, this method guarantees that the returned pointer type will point to
+  /// an LLVM type of the same size of the lvalue's type.  If the lvalue has a
+  /// variable length type, this is not possible.
+  ///
+  LValue EmitLValue(const Expr *E);
+
+  /// EmitCheckedLValue - Same as EmitLValue but additionally we generate
+  /// checking code to guard against undefined behavior.  This is only
+  /// suitable when we know that the address will be used to access the
+  /// object.
+  LValue EmitCheckedLValue(const Expr *E);
+
+  /// EmitLoadOfScalar - Load a scalar value from an address, taking
+  /// care to appropriately convert from the memory representation to
+  /// the LLVM value representation.
+  llvm::Value *EmitLoadOfScalar(llvm::Value *Addr, bool Volatile,
+                                QualType Ty);
+
+  /// EmitStoreOfScalar - Store a scalar value to an address, taking
+  /// care to appropriately convert from the memory representation to
+  /// the LLVM value representation.
+  void EmitStoreOfScalar(llvm::Value *Value, llvm::Value *Addr,
+                         bool Volatile, QualType Ty);
+
+  /// EmitLoadOfLValue - Given an expression that represents a value lvalue,
+  /// this method emits the address of the lvalue, then loads the result as an
+  /// rvalue, returning the rvalue.
+  RValue EmitLoadOfLValue(LValue V, QualType LVType);
+  RValue EmitLoadOfExtVectorElementLValue(LValue V, QualType LVType);
+  RValue EmitLoadOfBitfieldLValue(LValue LV, QualType ExprType);
+  RValue EmitLoadOfPropertyRefLValue(LValue LV, QualType ExprType);
+  RValue EmitLoadOfKVCRefLValue(LValue LV, QualType ExprType);
+
+
+  /// EmitStoreThroughLValue - Store the specified rvalue into the specified
+  /// lvalue, where both are guaranteed to the have the same type, and that type
+  /// is 'Ty'.
+  void EmitStoreThroughLValue(RValue Src, LValue Dst, QualType Ty);
+  void EmitStoreThroughExtVectorComponentLValue(RValue Src, LValue Dst,
+                                                QualType Ty);
+  void EmitStoreThroughPropertyRefLValue(RValue Src, LValue Dst, QualType Ty);
+  void EmitStoreThroughKVCRefLValue(RValue Src, LValue Dst, QualType Ty);
+
+  /// EmitStoreThroughLValue - Store Src into Dst with same constraints as
+  /// EmitStoreThroughLValue.
+  ///
+  /// \param Result [out] - If non-null, this will be set to a Value* for the
+  /// bit-field contents after the store, appropriate for use as the result of
+  /// an assignment to the bit-field.
+  void EmitStoreThroughBitfieldLValue(RValue Src, LValue Dst, QualType Ty,
+                                      llvm::Value **Result=0);
+
+  // Note: only availabe for agg return types
+  LValue EmitBinaryOperatorLValue(const BinaryOperator *E);
+  // Note: only available for agg return types
+  LValue EmitCallExprLValue(const CallExpr *E);
+  // Note: only available for agg return types
+  LValue EmitVAArgExprLValue(const VAArgExpr *E);
+  LValue EmitDeclRefLValue(const DeclRefExpr *E);
+  LValue EmitStringLiteralLValue(const StringLiteral *E);
+  LValue EmitObjCEncodeExprLValue(const ObjCEncodeExpr *E);
+  LValue EmitPredefinedFunctionName(unsigned Type);
+  LValue EmitPredefinedLValue(const PredefinedExpr *E);
+  LValue EmitUnaryOpLValue(const UnaryOperator *E);
+  LValue EmitArraySubscriptExpr(const ArraySubscriptExpr *E);
+  LValue EmitExtVectorElementExpr(const ExtVectorElementExpr *E);
+  LValue EmitMemberExpr(const MemberExpr *E);
+  LValue EmitObjCIsaExpr(const ObjCIsaExpr *E);
+  LValue EmitCompoundLiteralLValue(const CompoundLiteralExpr *E);
+  LValue EmitConditionalOperatorLValue(const ConditionalOperator *E);
+  LValue EmitCastLValue(const CastExpr *E);
+  LValue EmitNullInitializationLValue(const CXXZeroInitValueExpr *E);
+  
+  llvm::Value *EmitIvarOffset(const ObjCInterfaceDecl *Interface,
+                              const ObjCIvarDecl *Ivar);
+  LValue EmitLValueForField(llvm::Value* Base, const FieldDecl* Field,
+                            unsigned CVRQualifiers);
+  
+  /// EmitLValueForFieldInitialization - Like EmitLValueForField, except that
+  /// if the Field is a reference, this will return the address of the reference
+  /// and not the address of the value stored in the reference.
+  LValue EmitLValueForFieldInitialization(llvm::Value* Base, 
+                                          const FieldDecl* Field,
+                                          unsigned CVRQualifiers);
+  
+  LValue EmitLValueForIvar(QualType ObjectTy,
+                           llvm::Value* Base, const ObjCIvarDecl *Ivar,
+                           unsigned CVRQualifiers);
+
+  LValue EmitLValueForBitfield(llvm::Value* Base, const FieldDecl* Field,
+                                unsigned CVRQualifiers);
+
+  LValue EmitBlockDeclRefLValue(const BlockDeclRefExpr *E);
+
+  LValue EmitCXXConstructLValue(const CXXConstructExpr *E);
+  LValue EmitCXXBindTemporaryLValue(const CXXBindTemporaryExpr *E);
+  LValue EmitCXXExprWithTemporariesLValue(const CXXExprWithTemporaries *E);
+  LValue EmitCXXTypeidLValue(const CXXTypeidExpr *E);
+  
+  LValue EmitObjCMessageExprLValue(const ObjCMessageExpr *E);
+  LValue EmitObjCIvarRefLValue(const ObjCIvarRefExpr *E);
+  LValue EmitObjCPropertyRefLValue(const ObjCPropertyRefExpr *E);
+  LValue EmitObjCKVCRefLValue(const ObjCImplicitSetterGetterRefExpr *E);
+  LValue EmitObjCSuperExprLValue(const ObjCSuperExpr *E);
+  LValue EmitStmtExprLValue(const StmtExpr *E);
+  LValue EmitPointerToDataMemberBinaryExpr(const BinaryOperator *E);
+  
+  //===--------------------------------------------------------------------===//
+  //                         Scalar Expression Emission
+  //===--------------------------------------------------------------------===//
+
+  /// EmitCall - Generate a call of the given function, expecting the given
+  /// result type, and using the given argument list which specifies both the
+  /// LLVM arguments and the types they were derived from.
+  ///
+  /// \param TargetDecl - If given, the decl of the function in a direct call;
+  /// used to set attributes on the call (noreturn, etc.).
+  RValue EmitCall(const CGFunctionInfo &FnInfo,
+                  llvm::Value *Callee,
+                  ReturnValueSlot ReturnValue,
+                  const CallArgList &Args,
+                  const Decl *TargetDecl = 0);
+
+  RValue EmitCall(QualType FnType, llvm::Value *Callee,
+                  ReturnValueSlot ReturnValue,
+                  CallExpr::const_arg_iterator ArgBeg,
+                  CallExpr::const_arg_iterator ArgEnd,
+                  const Decl *TargetDecl = 0);
+  RValue EmitCallExpr(const CallExpr *E, 
+                      ReturnValueSlot ReturnValue = ReturnValueSlot());
+
+  llvm::Value *BuildVirtualCall(const CXXMethodDecl *MD, llvm::Value *This,
+                                const llvm::Type *Ty);
+  llvm::Value *BuildVirtualCall(const CXXDestructorDecl *DD, CXXDtorType Type, 
+                                llvm::Value *&This, const llvm::Type *Ty);
+
+  RValue EmitCXXMemberCall(const CXXMethodDecl *MD,
+                           llvm::Value *Callee,
+                           ReturnValueSlot ReturnValue,
+                           llvm::Value *This,
+                           llvm::Value *VTT,
+                           CallExpr::const_arg_iterator ArgBeg,
+                           CallExpr::const_arg_iterator ArgEnd);
+  RValue EmitCXXMemberCallExpr(const CXXMemberCallExpr *E,
+                               ReturnValueSlot ReturnValue);
+  RValue EmitCXXMemberPointerCallExpr(const CXXMemberCallExpr *E,
+                                      ReturnValueSlot ReturnValue);
+
+  RValue EmitCXXOperatorMemberCallExpr(const CXXOperatorCallExpr *E,
+                                       const CXXMethodDecl *MD,
+                                       ReturnValueSlot ReturnValue);
+
+  
+  RValue EmitBuiltinExpr(const FunctionDecl *FD,
+                         unsigned BuiltinID, const CallExpr *E);
+
+  RValue EmitBlockCallExpr(const CallExpr *E, ReturnValueSlot ReturnValue);
+
+  /// EmitTargetBuiltinExpr - Emit the given builtin call. Returns 0 if the call
+  /// is unhandled by the current target.
+  llvm::Value *EmitTargetBuiltinExpr(unsigned BuiltinID, const CallExpr *E);
+
+  llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E);
+  llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E);
+
+  llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E);
+  llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E);
+  llvm::Value *EmitObjCSelectorExpr(const ObjCSelectorExpr *E);
+  RValue EmitObjCMessageExpr(const ObjCMessageExpr *E);
+  RValue EmitObjCPropertyGet(const Expr *E);
+  RValue EmitObjCSuperPropertyGet(const Expr *Exp, const Selector &S);
+  void EmitObjCPropertySet(const Expr *E, RValue Src);
+  void EmitObjCSuperPropertySet(const Expr *E, const Selector &S, RValue Src);
+
+
+  /// EmitReferenceBindingToExpr - Emits a reference binding to the passed in
+  /// expression. Will emit a temporary variable if E is not an LValue.
+  RValue EmitReferenceBindingToExpr(const Expr* E, bool IsInitializer = false);
+
+  //===--------------------------------------------------------------------===//
+  //                           Expression Emission
+  //===--------------------------------------------------------------------===//
+
+  // Expressions are broken into three classes: scalar, complex, aggregate.
+
+  /// EmitScalarExpr - Emit the computation of the specified expression of LLVM
+  /// scalar type, returning the result.
+  llvm::Value *EmitScalarExpr(const Expr *E , bool IgnoreResultAssign = false);
+
+  /// EmitScalarConversion - Emit a conversion from the specified type to the
+  /// specified destination type, both of which are LLVM scalar types.
+  llvm::Value *EmitScalarConversion(llvm::Value *Src, QualType SrcTy,
+                                    QualType DstTy);
+
+  /// EmitComplexToScalarConversion - Emit a conversion from the specified
+  /// complex type to the specified destination type, where the destination type
+  /// is an LLVM scalar type.
+  llvm::Value *EmitComplexToScalarConversion(ComplexPairTy Src, QualType SrcTy,
+                                             QualType DstTy);
+
+
+  /// EmitAggExpr - Emit the computation of the specified expression of
+  /// aggregate type.  The result is computed into DestPtr.  Note that if
+  /// DestPtr is null, the value of the aggregate expression is not needed.
+  void EmitAggExpr(const Expr *E, llvm::Value *DestPtr, bool VolatileDest,
+                   bool IgnoreResult = false, bool IsInitializer = false,
+                   bool RequiresGCollection = false);
+
+  /// EmitAggExprToLValue - Emit the computation of the specified expression of
+  /// aggregate type into a temporary LValue.
+  LValue EmitAggExprToLValue(const Expr *E);
+
+  /// EmitGCMemmoveCollectable - Emit special API for structs with object
+  /// pointers.
+  void EmitGCMemmoveCollectable(llvm::Value *DestPtr, llvm::Value *SrcPtr,
+                                QualType Ty);
+
+  /// EmitComplexExpr - Emit the computation of the specified expression of
+  /// complex type, returning the result.
+  ComplexPairTy EmitComplexExpr(const Expr *E, bool IgnoreReal = false,
+                                bool IgnoreImag = false,
+                                bool IgnoreRealAssign = false,
+                                bool IgnoreImagAssign = false);
+
+  /// EmitComplexExprIntoAddr - Emit the computation of the specified expression
+  /// of complex type, storing into the specified Value*.
+  void EmitComplexExprIntoAddr(const Expr *E, llvm::Value *DestAddr,
+                               bool DestIsVolatile);
+
+  /// StoreComplexToAddr - Store a complex number into the specified address.
+  void StoreComplexToAddr(ComplexPairTy V, llvm::Value *DestAddr,
+                          bool DestIsVolatile);
+  /// LoadComplexFromAddr - Load a complex number from the specified address.
+  ComplexPairTy LoadComplexFromAddr(llvm::Value *SrcAddr, bool SrcIsVolatile);
+
+  /// CreateStaticBlockVarDecl - Create a zero-initialized LLVM global for a
+  /// static block var decl.
+  llvm::GlobalVariable *CreateStaticBlockVarDecl(const VarDecl &D,
+                                                 const char *Separator,
+                                       llvm::GlobalValue::LinkageTypes Linkage);
+  
+  /// AddInitializerToGlobalBlockVarDecl - Add the initializer for 'D' to the
+  /// global variable that has already been created for it.  If the initializer
+  /// has a different type than GV does, this may free GV and return a different
+  /// one.  Otherwise it just returns GV.
+  llvm::GlobalVariable *
+  AddInitializerToGlobalBlockVarDecl(const VarDecl &D,
+                                     llvm::GlobalVariable *GV);
+  
+
+  /// EmitStaticCXXBlockVarDeclInit - Create the initializer for a C++ runtime
+  /// initialized static block var decl.
+  void EmitStaticCXXBlockVarDeclInit(const VarDecl &D,
+                                     llvm::GlobalVariable *GV);
+
+  /// EmitCXXGlobalVarDeclInit - Create the initializer for a C++
+  /// variable with global storage.
+  void EmitCXXGlobalVarDeclInit(const VarDecl &D, llvm::Constant *DeclPtr);
+
+  /// EmitCXXGlobalDtorRegistration - Emits a call to register the global ptr
+  /// with the C++ runtime so that its destructor will be called at exit.
+  void EmitCXXGlobalDtorRegistration(llvm::Constant *DtorFn,
+                                     llvm::Constant *DeclPtr);
+
+  /// GenerateCXXGlobalInitFunc - Generates code for initializing global
+  /// variables.
+  void GenerateCXXGlobalInitFunc(llvm::Function *Fn,
+                                 llvm::Constant **Decls,
+                                 unsigned NumDecls);
+
+  void GenerateCXXGlobalVarDeclInitFunc(llvm::Function *Fn, const VarDecl *D);
+
+  void EmitCXXConstructExpr(llvm::Value *Dest, const CXXConstructExpr *E);
+
+  RValue EmitCXXExprWithTemporaries(const CXXExprWithTemporaries *E,
+                                    llvm::Value *AggLoc = 0,
+                                    bool IsAggLocVolatile = false,
+                                    bool IsInitializer = false);
+
+  void EmitCXXThrowExpr(const CXXThrowExpr *E);
+
+  //===--------------------------------------------------------------------===//
+  //                             Internal Helpers
+  //===--------------------------------------------------------------------===//
+
+  /// ContainsLabel - Return true if the statement contains a label in it.  If
+  /// this statement is not executed normally, it not containing a label means
+  /// that we can just remove the code.
+  static bool ContainsLabel(const Stmt *S, bool IgnoreCaseStmts = false);
+
+  /// ConstantFoldsToSimpleInteger - If the specified expression does not fold
+  /// to a constant, or if it does but contains a label, return 0.  If it
+  /// constant folds to 'true' and does not contain a label, return 1, if it
+  /// constant folds to 'false' and does not contain a label, return -1.
+  int ConstantFoldsToSimpleInteger(const Expr *Cond);
+
+  /// EmitBranchOnBoolExpr - Emit a branch on a boolean condition (e.g. for an
+  /// if statement) to the specified blocks.  Based on the condition, this might
+  /// try to simplify the codegen of the conditional based on the branch.
+  void EmitBranchOnBoolExpr(const Expr *Cond, llvm::BasicBlock *TrueBlock,
+                            llvm::BasicBlock *FalseBlock);
+
+  /// getTrapBB - Create a basic block that will call the trap intrinsic.  We'll
+  /// generate a branch around the created basic block as necessary.
+  llvm::BasicBlock* getTrapBB();
+private:
+
+  void EmitReturnOfRValue(RValue RV, QualType Ty);
+
+  /// ExpandTypeFromArgs - Reconstruct a structure of type \arg Ty
+  /// from function arguments into \arg Dst. See ABIArgInfo::Expand.
+  ///
+  /// \param AI - The first function argument of the expansion.
+  /// \return The argument following the last expanded function
+  /// argument.
+  llvm::Function::arg_iterator
+  ExpandTypeFromArgs(QualType Ty, LValue Dst,
+                     llvm::Function::arg_iterator AI);
+
+  /// ExpandTypeToArgs - Expand an RValue \arg Src, with the LLVM type for \arg
+  /// Ty, into individual arguments on the provided vector \arg Args. See
+  /// ABIArgInfo::Expand.
+  void ExpandTypeToArgs(QualType Ty, RValue Src,
+                        llvm::SmallVector<llvm::Value*, 16> &Args);
+
+  llvm::Value* EmitAsmInput(const AsmStmt &S,
+                            const TargetInfo::ConstraintInfo &Info,
+                            const Expr *InputExpr, std::string &ConstraintStr);
+
+  /// EmitCleanupBlock - emits a single cleanup block.
+  void EmitCleanupBlock();
+
+  /// AddBranchFixup - adds a branch instruction to the list of fixups for the
+  /// current cleanup scope.
+  void AddBranchFixup(llvm::BranchInst *BI);
+
+  /// EmitCallArg - Emit a single call argument.
+  RValue EmitCallArg(const Expr *E, QualType ArgType);
+
+  /// EmitCallArgs - Emit call arguments for a function.
+  /// The CallArgTypeInfo parameter is used for iterating over the known
+  /// argument types of the function being called.
+  template<typename T>
+  void EmitCallArgs(CallArgList& Args, const T* CallArgTypeInfo,
+                    CallExpr::const_arg_iterator ArgBeg,
+                    CallExpr::const_arg_iterator ArgEnd) {
+      CallExpr::const_arg_iterator Arg = ArgBeg;
+
+    // First, use the argument types that the type info knows about
+    if (CallArgTypeInfo) {
+      for (typename T::arg_type_iterator I = CallArgTypeInfo->arg_type_begin(),
+           E = CallArgTypeInfo->arg_type_end(); I != E; ++I, ++Arg) {
+        assert(Arg != ArgEnd && "Running over edge of argument list!");
+        QualType ArgType = *I;
+
+        assert(getContext().getCanonicalType(ArgType.getNonReferenceType()).
+               getTypePtr() ==
+               getContext().getCanonicalType(Arg->getType()).getTypePtr() &&
+               "type mismatch in call argument!");
+
+        Args.push_back(std::make_pair(EmitCallArg(*Arg, ArgType),
+                                      ArgType));
+      }
+
+      // Either we've emitted all the call args, or we have a call to a
+      // variadic function.
+      assert((Arg == ArgEnd || CallArgTypeInfo->isVariadic()) &&
+             "Extra arguments in non-variadic function!");
+
+    }
+
+    // If we still have any arguments, emit them using the type of the argument.
+    for (; Arg != ArgEnd; ++Arg) {
+      QualType ArgType = Arg->getType();
+      Args.push_back(std::make_pair(EmitCallArg(*Arg, ArgType),
+                                    ArgType));
+    }
+  }
+};
+
+
+}  // end namespace CodeGen
+}  // end namespace clang
+
+#endif