--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gen/toobj.c	Sat Sep 01 21:43:27 2007 +0200
@@ -0,0 +1,816 @@
+
+// Copyright (c) 1999-2004 by Digital Mars
+// All Rights Reserved
+// written by Walter Bright
+// www.digitalmars.com
+// License for redistribution is by either the Artistic License
+// in artistic.txt, or the GNU General Public License in gnu.txt.
+// See the included readme.txt for details.
+
+#include <cstddef>
+#include <iostream>
+#include <fstream>
+
+#include "llvm/Type.h"
+#include "llvm/Constants.h"
+#include "llvm/DerivedTypes.h"
+#include "llvm/Instructions.h"
+#include "llvm/Analysis/Verifier.h"
+#include "llvm/Bitcode/ReaderWriter.h"
+
+#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetMachineRegistry.h"
+
+#include "mars.h"
+#include "module.h"
+#include "mtype.h"
+#include "declaration.h"
+#include "statement.h"
+#include "enum.h"
+#include "aggregate.h"
+#include "init.h"
+#include "attrib.h"
+#include "id.h"
+#include "import.h"
+#include "template.h"
+#include "irstate.h"
+#include "elem.h"
+#include "logger.h"
+
+#include "tollvm.h"
+
+//////////////////////////////////////////////////////////////////////////////////////////
+
+void
+Module::genobjfile()
+{
+    Logger::cout() << "Generating module: " << (md ? md->toChars() : toChars()) << '\n';
+    LOG_SCOPE;
+
+    deleteObjFile();
+
+    IRState ir;
+    gIR = &ir;
+
+    ir.dmodule = this;
+
+    std::string mname(toChars());
+    if (md != 0)
+        mname = md->toChars();
+    ir.module = new llvm::Module(mname);
+
+    std::string target_triple(global.params.tt_arch);
+    target_triple.append(global.params.tt_os);
+    ir.module->setTargetTriple(target_triple);
+    ir.module->setDataLayout(global.params.data_layout);
+
+    gTargetData = new llvm::TargetData(ir.module);
+
+    for (int k=0; k < members->dim; k++) {
+        Dsymbol* dsym = (Dsymbol*)(members->data[k]);
+        assert(dsym);
+        dsym->toObjFile();
+    }
+
+    delete gTargetData;
+    gTargetData = 0;
+
+    std::string verifyErr;
+    if (llvm::verifyModule(*ir.module,llvm::ReturnStatusAction,&verifyErr))
+    {
+        error("%s", verifyErr.c_str());
+        fatal();
+    }
+
+    if (ir.emitMain) {
+        LLVM_DtoMain();
+    }
+
+    // run passes
+    // TODO
+
+    /*if (global.params.llvmLL) {
+        //assert(0);
+        std::ofstream os(llfile->name->toChars());
+        //llvm::WriteAssemblyToFile(ir.module, os);
+        ir.module->print(os);
+    }*/
+
+    //if (global.params.llvmBC) {
+        Logger::println("Writing LLVM bitcode\n");
+        std::ofstream os(bcfile->name->toChars(), std::ios::binary);
+        llvm::WriteBitcodeToFile(ir.module, os);
+    //}
+
+    delete ir.module;
+    gIR = NULL;
+}
+
+/* ================================================================== */
+
+// Put out instance of ModuleInfo for this Module
+
+void Module::genmoduleinfo()
+{
+}
+
+/* ================================================================== */
+
+void Dsymbol::toObjFile()
+{
+    warning("Ignoring Dsymbol::toObjFile for %s", toChars());
+}
+
+/* ================================================================== */
+
+void Declaration::toObjFile()
+{
+    warning("Ignoring Declaration::toObjFile for %s", toChars());
+}
+
+/* ================================================================== */
+
+unsigned AggregateDeclaration::offsetToIndex(unsigned os)
+{
+    for (unsigned i=0; i<fields.dim; ++i) {
+        VarDeclaration* vd = (VarDeclaration*)fields.data[i];
+        if (os == vd->offset)
+            return i;
+    }
+    assert(0 && "Offset not found in any aggregate field");
+    return 0;
+}
+
+/* ================================================================== */
+
+static unsigned LLVM_ClassOffsetToIndex(ClassDeclaration* cd, unsigned os, unsigned& idx)
+{
+    // start at the bottom of the inheritance chain
+    if (cd->baseClass != 0) {
+        unsigned o = LLVM_ClassOffsetToIndex(cd->baseClass, os, idx);
+        if (o != (unsigned)-1)
+            return o;
+    }
+
+    // check this class
+    unsigned i;
+    for (i=0; i<cd->fields.dim; ++i) {
+        VarDeclaration* vd = (VarDeclaration*)cd->fields.data[i];
+        if (os == vd->offset)
+            return i+idx;
+    }
+    idx += i;
+
+    return (unsigned)-1;
+}
+
+unsigned ClassDeclaration::offsetToIndex(unsigned os)
+{
+    unsigned idx = 0;
+    unsigned r = LLVM_ClassOffsetToIndex(this, os, idx);
+    assert(r != (unsigned)-1 && "Offset not found in any aggregate field");
+    return r+1; // vtable is 0
+}
+
+/* ================================================================== */
+
+void InterfaceDeclaration::toObjFile()
+{
+    warning("Ignoring InterfaceDeclaration::toObjFile for %s", toChars());
+}
+
+/* ================================================================== */
+
+void StructDeclaration::toObjFile()
+{
+    TypeStruct* ts = (TypeStruct*)type;
+    if (llvmType != 0)
+        return;
+
+    static int sdi = 0;
+    Logger::print("StructDeclaration::toObjFile(%d): %s\n", sdi++, toChars());
+    LOG_SCOPE;
+
+    gIR->structs.push_back(IRStruct(ts));
+
+    std::vector<FuncDeclaration*> mfs;
+
+    for (int k=0; k < members->dim; k++) {
+        Dsymbol* dsym = (Dsymbol*)(members->data[k]);
+
+        // need late generation of member functions
+        // they need the llvm::StructType to exist to take the 'this' parameter
+        if (FuncDeclaration* fd = dsym->isFuncDeclaration()) {
+            mfs.push_back(fd);
+        }
+        else {
+            dsym->toObjFile();
+        }
+    }
+
+    llvm::StructType* structtype = llvm::StructType::get(gIR->topstruct().fields);
+
+    // refine abstract types for stuff like: struct S{S* next;}
+    if (gIR->topstruct().recty != 0)
+    {
+        llvm::PATypeHolder& pa = gIR->topstruct().recty;
+        llvm::cast<llvm::OpaqueType>(pa.get())->refineAbstractTypeTo(structtype);
+        structtype = llvm::cast<llvm::StructType>(pa.get());
+    }
+
+    ts->llvmType = structtype;
+    llvmType = structtype;
+
+    if (parent->isModule()) {
+        gIR->module->addTypeName(mangle(),ts->llvmType);
+    }
+
+    // generate static data
+    llvm::GlobalValue::LinkageTypes _linkage = llvm::GlobalValue::ExternalLinkage;
+    llvm::Constant* _init = 0;
+
+    // always generate the constant initalizer
+    if (!zeroInit) {
+        Logger::println("Not zero initialized");
+        //assert(tk == gIR->topstruct().size());
+        #ifndef LLVMD_NO_LOGGER
+        Logger::cout() << *structtype << '\n';
+        for (size_t k=0; k<gIR->topstruct().inits.size(); ++k) {
+            Logger::cout() << "Type:" << '\n';
+            Logger::cout() << *gIR->topstruct().inits[k]->getType() << '\n';
+            Logger::cout() << "Value:" << '\n';
+            Logger::cout() << *gIR->topstruct().inits[k] << '\n';
+        }
+        Logger::cout() << "Initializer printed" << '\n';
+        #endif
+        llvmInitZ = llvm::ConstantStruct::get(structtype,gIR->topstruct().inits);
+    }
+    else {
+        Logger::println("Zero initialized");
+        llvmInitZ = llvm::ConstantAggregateZero::get(structtype);
+    }
+
+    // only provide the constant initializer for the defining module
+    if (getModule() == gIR->dmodule)
+    {
+        _init = llvmInitZ;
+    }
+
+    std::string initname(mangle());
+    initname.append("__initZ");
+    llvm::GlobalVariable* initvar = new llvm::GlobalVariable(ts->llvmType, true, _linkage, _init, initname, gIR->module);
+    ts->llvmInit = initvar;
+
+    // generate member functions
+    size_t n = mfs.size();
+    for (size_t i=0; i<n; ++i) {
+        mfs[i]->toObjFile();
+    }
+
+    llvmDModule = gIR->dmodule;
+
+    gIR->structs.pop_back();
+
+    // generate typeinfo
+    type->getTypeInfo(NULL);    // generate TypeInfo
+}
+
+/* ================================================================== */
+
+static void LLVM_AddBaseClassData(BaseClasses* bcs)
+{
+    // add base class data members first
+    for (int j=0; j<bcs->dim; j++)
+    {
+        BaseClass* bc = (BaseClass*)(bcs->data[j]);
+        assert(bc);
+        LLVM_AddBaseClassData(&bc->base->baseclasses);
+        for (int k=0; k < bc->base->members->dim; k++) {
+            Dsymbol* dsym = (Dsymbol*)(bc->base->members->data[k]);
+            if (dsym->isVarDeclaration())
+            {
+                dsym->toObjFile();
+            }
+        }
+    }
+}
+
+void ClassDeclaration::toObjFile()
+{
+    TypeClass* ts = (TypeClass*)type;
+    if (ts->llvmType != 0 || llvmInProgress)
+        return;
+
+    llvmInProgress = true;
+
+    static int fdi = 0;
+    Logger::print("ClassDeclaration::toObjFile(%d): %s\n", fdi++, toChars());
+    LOG_SCOPE;
+
+    gIR->structs.push_back(IRStruct());
+    gIR->classes.push_back(this);
+    gIR->classmethods.push_back(IRState::FuncDeclVec());
+    gIR->queueClassMethods.push_back(true);
+
+    // add vtable
+    const llvm::Type* vtabty = llvm::PointerType::get(llvm::Type::Int8Ty);
+    gIR->topstruct().fields.push_back(vtabty);
+    gIR->topstruct().inits.push_back(0);
+
+    // base classes first
+    LLVM_AddBaseClassData(&baseclasses);
+
+    // then add own members
+    for (int k=0; k < members->dim; k++) {
+        Dsymbol* dsym = (Dsymbol*)(members->data[k]);
+        dsym->toObjFile();
+    }
+
+    llvm::StructType* structtype = llvm::StructType::get(gIR->topstruct().fields);
+    ts->llvmType = structtype;
+    llvmType = structtype;
+
+    bool emit_vtable = false;
+    bool define_vtable = false;
+    if (parent->isModule()) {
+        gIR->module->addTypeName(mangle(),ts->llvmType);
+        emit_vtable = true;
+        define_vtable = (getModule() == gIR->dmodule);
+    }
+    else {
+        assert(0 && "class parent is not a module");
+    }
+
+    // generate member functions
+    gIR->queueClassMethods.back() = false;
+    IRState::FuncDeclVec& mfs = gIR->classmethods.back();
+    size_t n = mfs.size();
+    for (size_t i=0; i<n; ++i) {
+        mfs[i]->toObjFile();
+    }
+
+    // create vtable initializer
+    if (emit_vtable)
+    {
+        llvm::GlobalVariable* vtblVar = 0;
+        std::vector<llvm::Constant*> inits;
+        inits.reserve(vtbl.dim);
+        for (int k=0; k < vtbl.dim; k++)
+        {
+            Dsymbol* dsym = (Dsymbol*)vtbl.data[k];
+            assert(dsym);
+            //Logger::cout() << "vtblsym: " << dsym->toChars() << '\n';
+
+            if (FuncDeclaration* fd = dsym->isFuncDeclaration()) {
+                fd->toObjFile();
+                Logger::cout() << "casting to constant" << *fd->llvmValue << '\n';
+                llvm::Constant* c = llvm::cast<llvm::Constant>(fd->llvmValue);
+                c = llvm::ConstantExpr::getBitCast(c, llvm::PointerType::get(llvm::Type::Int8Ty));
+                inits.push_back(c);
+            }
+            else if (ClassDeclaration* cd = dsym->isClassDeclaration()) {
+                llvm::Constant* c = llvm::Constant::getNullValue(llvm::PointerType::get(llvm::Type::Int8Ty));
+                inits.push_back(c);
+            }
+            else
+            assert(0);
+        }
+        if (!inits.empty())
+        {
+            llvm::GlobalValue::LinkageTypes _linkage = llvm::GlobalValue::ExternalLinkage;
+            std::string varname(mangle());
+            varname.append("__vtblZ");
+            const llvm::ArrayType* vtbl_ty = llvm::ArrayType::get(llvm::PointerType::get(llvm::Type::Int8Ty), inits.size());
+            vtblVar = new llvm::GlobalVariable(vtbl_ty, true, _linkage, 0, varname, gIR->module);
+            if (define_vtable) {
+                //Logger::cout() << "vtbl:::" << '\n' << *vtbl_st << '\n';// << " == | == " << _init << '\n';
+                llvm::Constant* _init = llvm::ConstantArray::get(vtbl_ty, inits);
+                vtblVar->setInitializer(_init);
+            }
+            llvmVtbl = vtblVar;
+        }
+
+        ////////////////////////////////////////////////////////////////////////////////
+
+        // generate initializer
+        llvm::GlobalValue::LinkageTypes _linkage = llvm::GlobalValue::ExternalLinkage;
+        llvm::Constant* _init = 0;
+
+        // first field is always the vtable
+        assert(vtblVar != 0);
+        llvm::Constant* vtbl_init_var = llvm::ConstantExpr::getBitCast(vtblVar, llvm::PointerType::get(llvm::Type::Int8Ty));
+        gIR->topstruct().inits[0] = vtbl_init_var;
+
+        //assert(tk == gIR->topstruct().size());
+        #ifndef LLVMD_NO_LOGGER
+        Logger::cout() << *structtype << '\n';
+        for (size_t k=0; k<gIR->topstruct().inits.size(); ++k)
+            Logger::cout() << *gIR->topstruct().inits[k] << '\n';
+        #endif
+        _init = llvm::ConstantStruct::get(structtype,gIR->topstruct().inits);
+        assert(_init);
+        std::string initname(mangle());
+        initname.append("__initZ");
+        Logger::cout() << *_init << '\n';
+        llvm::GlobalVariable* initvar = new llvm::GlobalVariable(ts->llvmType, true, _linkage, 0, initname, gIR->module);
+        ts->llvmInit = initvar;
+        if (define_vtable) {
+            initvar->setInitializer(_init);
+        }
+    }
+
+    gIR->queueClassMethods.pop_back();
+    gIR->classmethods.pop_back();
+    gIR->classes.pop_back();
+    gIR->structs.pop_back();
+
+    llvmInProgress = false;
+}
+
+/******************************************
+ * Get offset of base class's vtbl[] initializer from start of csym.
+ * Returns ~0 if not this csym.
+ */
+
+unsigned ClassDeclaration::baseVtblOffset(BaseClass *bc)
+{
+  return ~0;
+}
+
+/* ================================================================== */
+
+void VarDeclaration::toObjFile()
+{
+    static int vdi = 0;
+    Logger::print("VarDeclaration::toObjFile(%d): %s | %s\n", vdi++, toChars(), type->toChars());
+    LOG_SCOPE;
+    llvm::Module* M = gIR->module;
+
+    // handle bind pragma
+    if (llvmInternal == LLVMbind) {
+        Logger::println("var is bound: %s", llvmInternal1);
+        llvmValue = M->getGlobalVariable(llvmInternal1);  
+        assert(llvmValue);
+        return;
+    }
+
+    // global variable or magic
+    if (!parent || parent->isModule())
+    {
+        bool _isconst = isConst();
+        if (!_isconst)
+            _isconst = (storage_class & STCconst) ? true : false; // doesn't seem to work ):
+        llvm::GlobalValue::LinkageTypes _linkage = LLVM_DtoLinkage(protection, storage_class);
+        const llvm::Type* _type = LLVM_DtoType(type);
+
+        llvm::Constant* _init = 0;
+        bool _signed = !type->isunsigned();
+
+        _init = LLVM_DtoInitializer(type, init);
+
+        assert(_type);
+        assert(_init);
+        //Logger::cout() << "initializer: " << *_init << '\n';
+        if (_type != _init->getType()) {
+            Logger::cout() << "got type '" << *_init->getType() << "' expected '" << *_type << "'\n";
+            // zero initalizer
+            if (_init->isNullValue())
+                _init = llvm::Constant::getNullValue(_type);
+            // pointer to global constant (struct.init)
+            else if (llvm::isa<llvm::GlobalVariable>(_init))
+            {
+                assert(_init->getType()->getContainedType(0) == _type);
+                llvm::GlobalVariable* gv = llvm::cast<llvm::GlobalVariable>(_init);
+                assert(type->ty == Tstruct);
+                TypeStruct* ts = (TypeStruct*)type;
+                assert(ts->sym->llvmInitZ);
+                _init = ts->sym->llvmInitZ;
+            }
+            // array single value init
+            else if (llvm::isa<llvm::ArrayType>(_type))
+            {
+                const llvm::ArrayType* at = llvm::cast<llvm::ArrayType>(_type);
+                assert(_type->getContainedType(0) == _init->getType());
+                std::vector<llvm::Constant*> initvals;
+                initvals.resize(at->getNumElements(), _init);
+                _init = llvm::ConstantArray::get(at, initvals);
+            }
+            else
+            assert(0);
+        }
+
+        Logger::println("Creating global variable");
+        std::string _name(mangle());
+        llvm::GlobalVariable* gvar = new llvm::GlobalVariable(_type,_isconst,_linkage,_init,_name,M);
+        llvmValue = gvar;
+
+        //if (storage_class & STCprivate)
+        //    gvar->setVisibility(llvm::GlobalValue::ProtectedVisibility);
+    }
+
+    // inside aggregate declaration. declare a field.
+    else
+    {
+        Logger::println("Aggregate var declaration: '%s' offset=%d", toChars(), offset);
+
+        const llvm::Type* _type = LLVM_DtoType(type);
+        gIR->topstruct().fields.push_back(_type);
+
+        llvm::Constant* _init = LLVM_DtoInitializer(type, init);
+        if (_type != _init->getType())
+        {
+            if (llvm::isa<llvm::ArrayType>(_type))
+            {
+                const llvm::ArrayType* arrty = llvm::cast<llvm::ArrayType>(_type);
+                uint64_t n = arrty->getNumElements();
+                std::vector<llvm::Constant*> vals(n,_init);
+                _init = llvm::ConstantArray::get(arrty, vals);
+            }
+            else
+            assert(0);
+        }
+        gIR->topstruct().inits.push_back(_init);
+    }
+
+    Logger::println("VarDeclaration::toObjFile is done");
+}
+
+/* ================================================================== */
+
+void TypedefDeclaration::toObjFile()
+{
+    static int tdi = 0;
+    Logger::print("TypedefDeclaration::toObjFile(%d): %s\n", tdi++, toChars());
+    LOG_SCOPE;
+
+    // TODO
+}
+
+/* ================================================================== */
+
+void EnumDeclaration::toObjFile()
+{
+    warning("Ignoring EnumDeclaration::toObjFile for %s", toChars());
+}
+
+/* ================================================================== */
+
+void FuncDeclaration::toObjFile()
+{
+    if (llvmValue != 0 && llvmDModule == gIR->dmodule) {
+        return;
+    }
+
+    // has already been pulled in by a reference to (
+    if (!gIR->queueClassMethods.empty() && gIR->queueClassMethods.back()) {
+        Logger::println("queueing %s", toChars());
+        assert(!gIR->classmethods.empty());
+        gIR->classmethods.back().push_back(this);
+        return; // will be generated later when the this parameter has a type
+    }
+
+    static int fdi = 0;
+    Logger::print("FuncDeclaration::toObjFile(%d,%s): %s\n", fdi++, needThis()?"this":"static",toChars());
+    LOG_SCOPE;
+
+    if (llvmInternal == LLVMintrinsic && fbody) {
+        error("intrinsics cannot have function bodies");
+        fatal();
+    }
+
+    TypeFunction* f = (TypeFunction*)type;
+    assert(f != 0);
+
+    // return value type
+    const llvm::Type* rettype;
+    const llvm::Type* actualRettype;
+    Type* rt = f->next;
+    bool retinptr = false;
+    bool usesthis = false;
+
+    if (isMain()) {
+        rettype = llvm::Type::Int32Ty;
+        actualRettype = rettype;
+        gIR->emitMain = true;
+    }
+    else if (rt) {
+        if (rt->ty == Tstruct || rt->ty == Tdelegate || rt->ty == Tarray) {
+            rettype = llvm::PointerType::get(LLVM_DtoType(rt));
+            actualRettype = llvm::Type::VoidTy;
+            f->llvmRetInPtr = retinptr = true;
+        }
+        else {
+            rettype = LLVM_DtoType(rt);
+            actualRettype = rettype;
+        }
+    }
+    else {
+        assert(0);
+    }
+
+    // parameter types
+    std::vector<const llvm::Type*> paramvec;
+
+    if (retinptr) {
+        Logger::print("returning through pointer parameter\n");
+        paramvec.push_back(rettype);
+    }
+
+    if (needThis()) {
+        if (AggregateDeclaration* ad = isMember()) {
+            Logger::print("isMember = this is: %s\n", ad->type->toChars());
+            const llvm::Type* thisty = LLVM_DtoType(ad->type);
+            if (llvm::isa<llvm::StructType>(thisty))
+                thisty = llvm::PointerType::get(thisty);
+            paramvec.push_back(thisty);
+            usesthis = true;
+        }
+        else
+        assert(0);
+    }
+
+    size_t n = Argument::dim(f->parameters);
+    for (int i=0; i < n; ++i) {
+        Argument* arg = Argument::getNth(f->parameters, i);
+        // ensure scalar
+        Type* argT = arg->type;
+        assert(argT);
+
+        if ((arg->storageClass & STCref) || (arg->storageClass & STCout)) {
+            //assert(arg->vardecl);
+            //arg->vardecl->refparam = true;
+        }
+        else
+            arg->llvmCopy = true;
+
+        const llvm::Type* at = LLVM_DtoType(argT);
+        if (llvm::isa<llvm::StructType>(at)) {
+            Logger::println("struct param");
+            paramvec.push_back(llvm::PointerType::get(at));
+        }
+        else if (llvm::isa<llvm::ArrayType>(at)) {
+            Logger::println("sarray param");
+            assert(argT->ty == Tsarray);
+            //paramvec.push_back(llvm::PointerType::get(at->getContainedType(0)));
+            paramvec.push_back(llvm::PointerType::get(at));
+        }
+        else {
+            if (!arg->llvmCopy) {
+                Logger::println("ref param");
+                at = llvm::PointerType::get(at);
+            }
+            else {
+                Logger::println("in param");
+            }
+            paramvec.push_back(at);
+        }
+    }
+    
+    // construct function
+    bool isvararg = f->varargs;
+    llvm::FunctionType* functype = llvm::FunctionType::get(actualRettype, paramvec, isvararg);
+    
+    // mangled name
+    char* mangled_name = (llvmInternal == LLVMintrinsic) ? llvmInternal1 : mangle();
+    llvm::Function* func = gIR->module->getFunction(mangled_name);
+    
+    // make the function
+    /*if (func != 0) {
+        llvmValue = func;
+        f->llvmType = functype;
+        return; // already pulled in from a forward declaration
+    }
+    else */
+    if (func == 0) {
+        func = new llvm::Function(functype,LLVM_DtoLinkage(protection, storage_class),mangled_name,gIR->module);
+    }
+
+    if (llvmInternal != LLVMintrinsic)
+        func->setCallingConv(LLVM_DtoCallingConv(f->linkage));
+
+    llvmValue = func;
+    f->llvmType = functype;
+
+    if (isMain()) {
+        gIR->mainFunc = func;
+    }
+
+    // name parameters
+    llvm::Function::arg_iterator iarg = func->arg_begin();
+    int k = 0;
+    int nunnamed = 0;
+    if (retinptr) {
+        iarg->setName("retval");
+        f->llvmRetArg = iarg;
+        ++iarg;
+    }
+    if (usesthis) {
+        iarg->setName("this");
+        ++iarg;
+    }
+    for (; iarg != func->arg_end(); ++iarg)
+    {
+        Argument* arg = Argument::getNth(f->parameters, k++);
+        //arg->llvmValue = iarg;
+        //printf("identifier: '%s' %p\n", arg->ident->toChars(), arg->ident);
+        if (arg->ident != 0) {
+            if (arg->vardecl) {
+                arg->vardecl->llvmValue = iarg;
+            }
+            iarg->setName(arg->ident->toChars());
+        }
+        else {
+            ++nunnamed;
+        }
+    }
+
+    // only members of the current module maybe be defined
+    if (getModule() == gIR->dmodule)
+    {
+        bool allow_fbody = true;
+        // handle static constructor / destructor
+        if (isStaticCtorDeclaration() || isStaticDtorDeclaration()) {
+            const llvm::ArrayType* sctor_type = llvm::ArrayType::get(llvm::PointerType::get(functype),1);
+            //Logger::cout() << "static ctor type: " << *sctor_type << '\n';
+            
+            llvm::Constant* sctor_func = llvm::cast<llvm::Constant>(llvmValue);
+            //Logger::cout() << "static ctor func: " << *sctor_func << '\n';
+            
+            llvm::Constant* sctor_init = 0;
+            if (llvmInternal == LLVMnull)
+            {
+                llvm::Constant* sctor_init_null = llvm::Constant::getNullValue(sctor_func->getType());
+                sctor_init = llvm::ConstantArray::get(sctor_type,&sctor_init_null,1);
+                allow_fbody = false;
+            }
+            else
+            {
+                sctor_init = llvm::ConstantArray::get(sctor_type,&sctor_func,1);
+            }
+            
+            //Logger::cout() << "static ctor init: " << *sctor_init << '\n';
+            
+            
+            // output the llvm.global_ctors array
+            const char* varname = isStaticCtorDeclaration() ? "_d_module_ctor_array" : "_d_module_dtor_array";
+            llvm::GlobalVariable* sctor_arr = new llvm::GlobalVariable(sctor_type, false, llvm::GlobalValue::AppendingLinkage, sctor_init, varname, gIR->module);
+        }
+
+        // function definition
+        if (allow_fbody && fbody != 0)
+        {
+            assert(nunnamed == 0);
+            gIR->funcs.push(func);
+            gIR->functypes.push(f);
+
+            IRScope irs;
+            irs.begin = new llvm::BasicBlock("entry",func);
+            irs.end = new llvm::BasicBlock("endentry",func);
+
+            //assert(gIR->scopes.empty());
+            gIR->scopes.push_back(irs);
+                
+                // create alloca point
+                f->llvmAllocaPoint = new llvm::BitCastInst(llvm::ConstantInt::get(llvm::Type::Int32Ty,0,false),llvm::Type::Int32Ty,"alloca point",gIR->scopebb());
+                
+                // output function body
+                fbody->toIR(gIR);
+
+                // llvm requires all basic blocks to end with a TerminatorInst but DMD does not put a return statement
+                // in automatically, so we do it here.
+                if (!isMain() && (gIR->scopebb()->empty() || !llvm::isa<llvm::TerminatorInst>(gIR->scopebb()->back()))) {
+                    // pass the previous block into this block
+                    //new llvm::BranchInst(irs.end, irs.begin);
+                    new llvm::ReturnInst(gIR->scopebb());
+                }
+                
+                // erase alloca point
+                f->llvmAllocaPoint->eraseFromParent();
+                f->llvmAllocaPoint = 0;
+
+            gIR->scopes.pop_back();
+            //assert(gIR->scopes.empty());
+
+            gIR->functypes.pop();
+            gIR->funcs.pop();
+
+            // get rid of the endentry block, it's never used
+            func->getBasicBlockList().pop_back();
+
+            // if the last block is empty now, it must be unreachable or it's a bug somewhere else
+            llvm::BasicBlock* lastbb = &func->getBasicBlockList().back();
+            if (lastbb->empty()) {
+                new llvm::UnreachableInst(lastbb);
+            }
+        }
+    }
+    else
+    {
+        Logger::println("only declaration");
+    }
+
+    llvmDModule = gIR->dmodule;
+
+    Logger::println("FuncDeclaration done\n");
+}