1 files changed, 0 insertions, 273 deletions
diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp
deleted file mode 100644
index 9c5c45d..0000000
--- a/clang/lib/CodeGen/CodeGenFunction.cpp
+++ /dev/null
@@ -1,273 +0,0 @@
-//===--- CodeGenFunction.cpp - Emit LLVM Code from ASTs for a Function ----===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This coordinates the per-function state used while generating code.
-//
-//===----------------------------------------------------------------------===//
-
-#include "CodeGenFunction.h"
-#include "CodeGenModule.h"
-#include "clang/Basic/TargetInfo.h"
-#include "clang/AST/AST.h"
-#include "llvm/CallingConv.h"
-#include "llvm/Constants.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Function.h"
-#include "llvm/Analysis/Verifier.h"
-#include "llvm/Support/CFG.h"
-using namespace clang;
-using namespace CodeGen;
-
-CodeGenFunction::CodeGenFunction(CodeGenModule &cgm) 
-  : CGM(cgm), Target(CGM.getContext().Target), SwitchInsn(NULL), 
-    CaseRangeBlock(NULL) {}
-
-ASTContext &CodeGenFunction::getContext() const {
-  return CGM.getContext();
-}
-
-
-llvm::BasicBlock *CodeGenFunction::getBasicBlockForLabel(const LabelStmt *S) {
-  llvm::BasicBlock *&BB = LabelMap[S];
-  if (BB) return BB;
-  
-  // Create, but don't insert, the new block.
-  return BB = llvm::BasicBlock::Create(S->getName());
-}
-
-llvm::Constant *
-CodeGenFunction::GetAddrOfStaticLocalVar(const VarDecl *BVD) {
-  return cast<llvm::Constant>(LocalDeclMap[BVD]);
-}
-
-const llvm::Type *CodeGenFunction::ConvertType(QualType T) {
-  return CGM.getTypes().ConvertType(T);
-}
-
-bool CodeGenFunction::hasAggregateLLVMType(QualType T) {
-  return !T->isRealType() && !T->isPointerLikeType() &&
-         !T->isVoidType() && !T->isVectorType() && !T->isFunctionType();
-}
-
-/// Generate an Objective-C method.  An Objective-C method is a C function with
-/// its pointer, name, and types registered in the class struture.  
-// FIXME: This method contains a lot of code copied and pasted from
-// GenerateCode.  This should be factored out.
-void CodeGenFunction::GenerateObjCMethod(const ObjCMethodDecl *OMD) {
-  llvm::SmallVector<const llvm::Type *, 16> ParamTypes;
-  for (unsigned i=0 ; i<OMD->param_size() ; i++) {
-    ParamTypes.push_back(ConvertType(OMD->getParamDecl(i)->getType()));
-  }
-  CurFn =CGM.getObjCRuntime()->MethodPreamble(ConvertType(OMD->getResultType()),
-                      llvm::PointerType::getUnqual(llvm::Type::Int32Ty),
-                                              ParamTypes.begin(),
-                                              OMD->param_size(),
-                                              OMD->isVariadic());
-  llvm::BasicBlock *EntryBB = llvm::BasicBlock::Create("entry", CurFn);
-  
-  // Create a marker to make it easy to insert allocas into the entryblock
-  // later.  Don't create this with the builder, because we don't want it
-  // folded.
-  llvm::Value *Undef = llvm::UndefValue::get(llvm::Type::Int32Ty);
-  AllocaInsertPt = new llvm::BitCastInst(Undef, llvm::Type::Int32Ty, "allocapt",
-                                         EntryBB);
-
-  FnRetTy = OMD->getResultType();
-
-  Builder.SetInsertPoint(EntryBB);
-  
-  // Emit allocs for param decls.  Give the LLVM Argument nodes names.
-  llvm::Function::arg_iterator AI = CurFn->arg_begin();
-  
-  // Name the struct return argument.
-  // FIXME: Probably should be in the runtime, or it will trample the other
-  // hidden arguments.
-  if (hasAggregateLLVMType(OMD->getResultType())) {
-    AI->setName("agg.result");
-    ++AI;
-  }
-
-  // Add implicit parameters to the decl map.
-  // TODO: Add something to AST to let the runtime specify the names and types
-  // of these.
-  llvm::Value *&DMEntry = LocalDeclMap[&(*OMD->getSelfDecl())];
-  const llvm::Type *SelfTy = AI->getType();
-  llvm::Value *DeclPtr = new llvm::AllocaInst(SelfTy, 0, "self.addr",
-                                   AllocaInsertPt);
-
-  // Store the initial value into the alloca.
-  Builder.CreateStore(AI, DeclPtr);
-  DMEntry = DeclPtr;
-  ++AI; ++AI;
-
-
-  for (unsigned i = 0, e = OMD->getNumParams(); i != e; ++i, ++AI) {
-    assert(AI != CurFn->arg_end() && "Argument mismatch!");
-    EmitParmDecl(*OMD->getParamDecl(i), AI);
-  }
-  
-  // Emit the function body.
-  EmitStmt(OMD->getBody());
-  
-  // Emit a return for code that falls off the end. If insert point
-  // is a dummy block with no predecessors then remove the block itself.
-  llvm::BasicBlock *BB = Builder.GetInsertBlock();
-  if (isDummyBlock(BB))
-    BB->eraseFromParent();
-  else {
-    if (CurFn->getReturnType() == llvm::Type::VoidTy)
-      Builder.CreateRetVoid();
-    else
-      Builder.CreateRet(llvm::UndefValue::get(CurFn->getReturnType()));
-  }
-  assert(BreakContinueStack.empty() &&
-         "mismatched push/pop in break/continue stack!");
-  
-  // Remove the AllocaInsertPt instruction, which is just a convenience for us.
-  AllocaInsertPt->eraseFromParent();
-  AllocaInsertPt = 0;
-  // Verify that the function is well formed.
-  assert(!verifyFunction(*CurFn) && "Generated method is not well formed.");
-}
-
-llvm::Value *CodeGenFunction::LoadObjCSelf(void)
-{
-  if(const ObjCMethodDecl *OMD = dyn_cast<ObjCMethodDecl>(CurFuncDecl)) {
-    llvm::Value *SelfPtr = LocalDeclMap[&(*OMD->getSelfDecl())];
-    return Builder.CreateLoad(SelfPtr, "self");
-  }
-  return NULL;
-}
-
-void CodeGenFunction::GenerateCode(const FunctionDecl *FD) {
-  LLVMIntTy = ConvertType(getContext().IntTy);
-  LLVMPointerWidth = static_cast<unsigned>(
-    getContext().getTypeSize(getContext().getPointerType(getContext().VoidTy)));
-  
-  CurFuncDecl = FD;
-  FnRetTy = FD->getType()->getAsFunctionType()->getResultType();
-
-  CurFn = cast<llvm::Function>(CGM.GetAddrOfFunctionDecl(FD, true));
-  assert(CurFn->isDeclaration() && "Function already has body?");
-  
-  // TODO: Set up linkage and many other things.  Note, this is a simple 
-  // approximation of what we really want.
-  if (FD->getStorageClass() == FunctionDecl::Static)
-    CurFn->setLinkage(llvm::Function::InternalLinkage);
-  else if (FD->getAttr<DLLImportAttr>())
-    CurFn->setLinkage(llvm::Function::DLLImportLinkage);
-  else if (FD->getAttr<DLLExportAttr>())
-    CurFn->setLinkage(llvm::Function::DLLExportLinkage);
-  else if (FD->getAttr<WeakAttr>() || FD->isInline())
-    CurFn->setLinkage(llvm::Function::WeakLinkage);
-
-  if (FD->getAttr<FastCallAttr>())
-    CurFn->setCallingConv(llvm::CallingConv::Fast);
-
-  if (const VisibilityAttr *attr = FD->getAttr<VisibilityAttr>())
-    CurFn->setVisibility(attr->getVisibility());
-  // FIXME: else handle -fvisibility
-
-
-  unsigned FuncAttrs = 0;
-  if (FD->getAttr<NoThrowAttr>())
-    FuncAttrs |= llvm::ParamAttr::NoUnwind;
-  if (FD->getAttr<NoReturnAttr>())
-    FuncAttrs |= llvm::ParamAttr::NoReturn;
-  
-  if (FuncAttrs) {
-    llvm::ParamAttrsWithIndex PAWI = 
-      llvm::ParamAttrsWithIndex::get(0, FuncAttrs);
-    CurFn->setParamAttrs(llvm::PAListPtr::get(&PAWI, 1));
-  }
-
-  llvm::BasicBlock *EntryBB = llvm::BasicBlock::Create("entry", CurFn);
-  
-  // Create a marker to make it easy to insert allocas into the entryblock
-  // later.  Don't create this with the builder, because we don't want it
-  // folded.
-  llvm::Value *Undef = llvm::UndefValue::get(llvm::Type::Int32Ty);
-  AllocaInsertPt = new llvm::BitCastInst(Undef, llvm::Type::Int32Ty, "allocapt",
-                                         EntryBB);
-  
-  Builder.SetInsertPoint(EntryBB);
-  
-  // Emit allocs for param decls.  Give the LLVM Argument nodes names.
-  llvm::Function::arg_iterator AI = CurFn->arg_begin();
-  
-  // Name the struct return argument.
-  if (hasAggregateLLVMType(FD->getResultType())) {
-    AI->setName("agg.result");
-    ++AI;
-  }
-  
-  for (unsigned i = 0, e = FD->getNumParams(); i != e; ++i, ++AI) {
-    assert(AI != CurFn->arg_end() && "Argument mismatch!");
-    EmitParmDecl(*FD->getParamDecl(i), AI);
-  }
-  
-  // Emit the function body.
-  EmitStmt(FD->getBody());
-  
-  // Emit a return for code that falls off the end. If insert point
-  // is a dummy block with no predecessors then remove the block itself.
-  llvm::BasicBlock *BB = Builder.GetInsertBlock();
-  if (isDummyBlock(BB))
-    BB->eraseFromParent();
-  else {
-    // FIXME: if this is C++ main, this should return 0.
-    if (CurFn->getReturnType() == llvm::Type::VoidTy)
-      Builder.CreateRetVoid();
-    else
-      Builder.CreateRet(llvm::UndefValue::get(CurFn->getReturnType()));
-  }
-  assert(BreakContinueStack.empty() &&
-         "mismatched push/pop in break/continue stack!");
-  
-  // Remove the AllocaInsertPt instruction, which is just a convenience for us.
-  AllocaInsertPt->eraseFromParent();
-  AllocaInsertPt = 0;
-  
-  // Verify that the function is well formed.
-  assert(!verifyFunction(*CurFn) && "Generated function is not well formed.");
-}
-
-/// isDummyBlock - Return true if BB is an empty basic block
-/// with no predecessors.
-bool CodeGenFunction::isDummyBlock(const llvm::BasicBlock *BB) {
-  if (BB->empty() && pred_begin(BB) == pred_end(BB)) 
-    return true;
-  return false;
-}
-
-/// StartBlock - Start new block named N. If insert block is a dummy block
-/// then reuse it.
-void CodeGenFunction::StartBlock(const char *N) {
-  llvm::BasicBlock *BB = Builder.GetInsertBlock();
-  if (!isDummyBlock(BB))
-    EmitBlock(llvm::BasicBlock::Create(N));
-  else
-    BB->setName(N);
-}
-
-/// getCGRecordLayout - Return record layout info.
-const CGRecordLayout *CodeGenFunction::getCGRecordLayout(CodeGenTypes &CGT,
-                                                         QualType Ty) {
-  const RecordType *RTy = Ty->getAsRecordType();
-  assert (RTy && "Unexpected type. RecordType expected here.");
-
-  return CGT.getCGRecordLayout(RTy->getDecl());
-}
-
-/// WarnUnsupported - Print out a warning that codegen doesn't support the
-/// specified stmt yet.
-void CodeGenFunction::WarnUnsupported(const Stmt *S, const char *Type) {
-  CGM.WarnUnsupported(S, Type);
-}
-