Update to work with LLVM 2.7.

Removed use of dyn_cast, llvm no compiles
without exceptions and rtti by
default. We do need exceptions for the libconfig stuff, but rtti isn't
necessary (anymore).

Debug info needs to be rewritten, as in LLVM 2.7 the format has
completely changed. To have something to look at while rewriting, the
old code has been wrapped inside #ifndef DISABLE_DEBUG_INFO , this means
that you have to define this to compile at the moment.

Updated tango 0.99.9 patch to include updated EH runtime code, which is
needed for LLVM 2.7 as well.

dmd/expression.h

@@ -41,6 +41,7 @@ struct TemplateDeclaration;
 struct ClassDeclaration;
 struct HdrGenState;
 struct BinExp;
+struct AssignExp;
 struct InterState;
 struct OverloadSet;
 
@@ -177,6 +178,8 @@ struct Expression : Object
     virtual void cacheLvalue(IRState* irs);
 
     llvm::Value* cachedLvalue;
+
+    virtual AssignExp* isAssignExp() { return NULL; }
 #endif
 };
 
@@ -1378,6 +1381,8 @@ struct AssignExp : BinExp
 #if IN_LLVM
     DValue* toElem(IRState* irs);
 #endif
+
+    AssignExp* isAssignExp() { return this; }
 };
 
 #if IN_DMD

dmd/statement.h

@@ -141,6 +141,7 @@ struct Statement : Object
     virtual ReturnStatement *isReturnStatement() { return NULL; }
     virtual IfStatement *isIfStatement() { return NULL; }
     virtual CaseStatement* isCaseStatement() { return NULL; }
+    virtual LabelStatement* isLabelStatement() { return NULL; }
 
 #if IN_LLVM
     virtual void toNakedIR(IRState *irs);
@@ -863,6 +864,8 @@ struct LabelStatement : Statement
     // LDC
     bool asmLabel;       // for labels inside inline assembler
     void toNakedIR(IRState *irs);
+
+    LabelStatement* isLabelStatement() { return this; }
 };
 
 struct LabelDsymbol : Dsymbol

gen/arrays.cpp

@@ -309,7 +309,7 @@ LLConstant* DtoConstArrayInitializer(ArrayInitializer* arrinit)
 
     LLConstant* constarr;
     if (mismatch)
-        constarr = LLConstantStruct::get(gIR->context(), initvals);
+        constarr = LLConstantStruct::get(gIR->context(), initvals, false); // FIXME should this pack?
     else
         constarr = LLConstantArray::get(LLArrayType::get(llelemty, arrlen), initvals);
 
@@ -394,7 +394,7 @@ void DtoStaticArrayCopy(LLValue* dst, LLValue* src)
 LLConstant* DtoConstSlice(LLConstant* dim, LLConstant* ptr)
 {
     LLConstant* values[2] = { dim, ptr };
-    return LLConstantStruct::get(gIR->context(), values, 2);
+    return LLConstantStruct::get(gIR->context(), values, 2, false);
 }
 
 //////////////////////////////////////////////////////////////////////////////////////////

gen/asmstmt.cpp

@@ -196,9 +196,11 @@ AsmStatement::toIR(IRState * irs)
     IRAsmBlock* asmblock = irs->asmBlock;
     assert(asmblock);
 
+    #ifndef DISABLE_DEBUG_INFO
     // debug info
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     if (! asmcode)
     return;
@@ -257,8 +259,7 @@ AsmStatement::toIR(IRState * irs)
 	    break;
 	case Arg_FrameRelative:
 // FIXME
-llvm::cout << "asm fixme Arg_FrameRelative" << std::endl;
+assert(0 && "asm fixme Arg_FrameRelative");
-assert(0);
 /*	    if (arg->expr->op == TOKvar)
 		arg_val = ((VarExp *) arg->expr)->var->toSymbol()->Stree;
 	    else
@@ -275,8 +276,7 @@ assert(0);
 	    break;*/
 	case Arg_LocalSize:
 // FIXME
-llvm::cout << "asm fixme Arg_LocalSize" << std::endl;
+assert(0 && "asm fixme Arg_LocalSize");
-assert(0);
 /*	    var_frame_offset = cfun->x_frame_offset;
 	    if (var_frame_offset < 0)
 		var_frame_offset = - var_frame_offset;

gen/cl_helpers.cpp

@@ -17,18 +17,18 @@ static char toLower(char c) {
     return c;
 }
 
-bool FlagParser::parse(cl::Option &O, const char *ArgName, const std::string &Arg, bool &Val) {
+bool FlagParser::parse(cl::Option &O, llvm::StringRef ArgName, llvm::StringRef Arg, bool &Val) {
     // Make a std::string out of it to make comparisons easier
     // (and avoid repeated conversion)
-    std::string argname = ArgName;
+    llvm::StringRef argname = ArgName;
 
     typedef std::vector<std::pair<std::string, bool> >::iterator It;
     for (It I = switches.begin(), E = switches.end(); I != E; ++I) {
-        std::string name = I->first;
+        llvm::StringRef name = I->first;
         if (name == argname
-                || (name.length() < argname.length()
+                || (name.size() < argname.size()
-                    && argname.substr(0, name.length()) == name
+                    && argname.substr(0, name.size()) == name
-                    && argname[name.length()] == '=')) {
+                    && argname[name.size()] == '=')) {
 
             if (!cl::parser<bool>::parse(O, ArgName, Arg, Val)) {
                 Val = (Val == I->second);
@@ -41,10 +41,10 @@ bool FlagParser::parse(cl::Option &O, const char *ArgName, const std::string &Ar
     return true;
 }
 
-void FlagParser::getExtraOptionNames(std::vector<const char*> &Names) {
+void FlagParser::getExtraOptionNames(llvm::SmallVectorImpl<const char*> &Names) {
     typedef std::vector<std::pair<std::string, bool> >::iterator It;
     for (It I = switches.begin() + 1, E = switches.end(); I != E; ++I) {
-        Names.push_back(I->first.c_str());
+        Names.push_back(I->first.data());
     }
 }
 

gen/cl_helpers.h

@@ -21,12 +21,12 @@ namespace opts {
             switches.push_back(make_pair("enable-" + Name, true));
             switches.push_back(make_pair("disable-" + Name, false));
             // Replace <foo> with -enable-<foo>
-            O.ArgStr = switches[0].first.c_str();
+            O.ArgStr = switches[0].first.data();
         }
 
-        bool parse(cl::Option &O, const char *ArgName, const std::string &ArgValue, bool &Val);
+        bool parse(cl::Option &O, llvm::StringRef ArgName, llvm::StringRef ArgValue, bool &Val);
 
-        void getExtraOptionNames(std::vector<const char*> &Names);
+        void getExtraOptionNames(llvm::SmallVectorImpl<const char*> &Names);
     };
 
     /// Helper class for options that set multiple flags

gen/configfile.cpp

@@ -109,7 +109,7 @@ bool ConfigFile::read(const char* argv0, void* mainAddr, const char* filename)
     }
 
     // save config file path for -v output
-    pathstr = p.toString();
+    pathstr = p.str();
 
     try
     {

gen/functions.cpp

@@ -599,10 +599,11 @@ void DtoDefineFunction(FuncDeclaration* fd)
         return;
     }
 
+    #ifndef DISABLE_DEBUG_INFO
     // debug info
-    if (global.params.symdebug) {
+    if (global.params.symdebug)
         fd->ir.irFunc->diSubprogram = DtoDwarfSubProgram(fd);
-    }
+    #endif
 
     Type* t = fd->type->toBasetype();
     TypeFunction* f = (TypeFunction*)t;
@@ -642,8 +643,10 @@ void DtoDefineFunction(FuncDeclaration* fd)
     llvm::Instruction* allocaPoint = new llvm::AllocaInst(LLType::getInt32Ty(gIR->context()), "alloca point", beginbb);
     irfunction->allocapoint = allocaPoint;
 
+    #ifndef DISABLE_DEBUG_INFO
     // debug info - after all allocas, but before any llvm.dbg.declare etc
     if (global.params.symdebug) DtoDwarfFuncStart(fd);
+    #endif
 
     // this hack makes sure the frame pointer elimination optimization is disabled.
     // this this eliminates a bunch of inline asm related issues.
@@ -668,8 +671,10 @@ void DtoDefineFunction(FuncDeclaration* fd)
         fd->vthis->ir.irLocal = new IrLocal(fd->vthis);
         fd->vthis->ir.irLocal->value = thismem;
 
+        #ifndef DISABLE_DEBUG_INFO
         if (global.params.symdebug)
             DtoDwarfLocalVariable(thismem, fd->vthis);
+        #endif
 
     #if DMDV1
         if (fd->vthis->nestedref)
@@ -722,8 +727,10 @@ void DtoDefineFunction(FuncDeclaration* fd)
                 irloc->value = mem;
             }
 
+            #ifndef DISABLE_DEBUG_INFO
             if (global.params.symdebug && !(isaArgument(irloc->value) && !isaArgument(irloc->value)->hasByValAttr()) && !refout)
                 DtoDwarfLocalVariable(irloc->value, vd);
+            #endif
         }
     }
 
@@ -796,7 +803,9 @@ void DtoDefineFunction(FuncDeclaration* fd)
         // in automatically, so we do it here.
 
         // pass the previous block into this block
+        #ifndef DISABLE_DEBUG_INFO
         if (global.params.symdebug) DtoDwarfFuncEnd(fd);
+        #endif
         if (func->getReturnType() == LLType::getVoidTy(gIR->context())) {
             llvm::ReturnInst::Create(gIR->context(), gIR->scopebb());
         }

gen/linker.cpp

@@ -222,13 +222,13 @@ int linkObjToExecutable(const char* argv0)
     // find gcc for linking
     llvm::sys::Path gcc = getGcc();
     // get a string version for argv[0]
-    std::string gccStr = gcc.toString();
+    const char* gccStr = gcc.c_str();
 
     // build arguments
     std::vector<const char*> args;
 
     // first the program name ??
-    args.push_back(gccStr.c_str());
+    args.push_back(gccStr);
 
     // object files
     for (int i = 0; i < global.params.objfiles->dim; i++)
@@ -335,7 +335,7 @@ int linkObjToExecutable(const char* argv0)
     for (; I != E; ++I)
         if (*I)
             logstr << "'" << *I << "'" << " ";
-    logstr << "\n" << std::flush;
+    logstr << "\n"; // FIXME where's flush ?
 
 
     // terminate args list
@@ -375,7 +375,7 @@ int runExecutable()
     // build arguments
     std::vector<const char*> args;
     // args[0] should be the name of the executable
-    args.push_back(gExePath.toString().c_str());
+    args.push_back(gExePath.c_str());
     // Skip first argument to -run; it's a D source file.
     for (size_t i = 1, length = opts::runargs.size(); i < length; i++)
     {

gen/llvmhelpers.cpp

@@ -160,9 +160,11 @@ void DtoAssert(Module* M, Loc loc, DValue* msg)
     // call
     gIR->CreateCallOrInvoke(fn, args.begin(), args.end());
 
+    #ifndef DISABLE_DEBUG_INFO
     // end debug info
     if (global.params.symdebug)
         DtoDwarfFuncEnd(gIR->func()->decl);
+    #endif
 
     // after assert is always unreachable
     gIR->ir->CreateUnreachable();
@@ -268,7 +270,7 @@ void DtoEnclosingHandlers(Loc loc, Statement* target)
 {
     // labels are a special case: they are not required to enclose the current scope
     // for them we use the enclosing scope handler as a reference point
-    LabelStatement* lblstmt = dynamic_cast<LabelStatement*>(target);
+    LabelStatement* lblstmt = target ? target->isLabelStatement() : 0;
     if (lblstmt)
         target = lblstmt->enclosingScopeExit;
 
@@ -485,7 +487,7 @@ DValue* DtoNullValue(Type* type)
     }
 
     // unknown
-    llvm::cout << "unsupported: null value for " << type->toChars() << '\n';
+    error("unsupported: null value for %s", type->toChars());
     assert(0);
     return 0;
 
@@ -854,6 +856,7 @@ void DtoConstInitGlobal(VarDeclaration* vd)
 
         gvar->setInitializer(initVal);
 
+        #ifndef DISABLE_DEBUG_INFO
         // do debug info
         if (global.params.symdebug)
         {
@@ -861,6 +864,7 @@ void DtoConstInitGlobal(VarDeclaration* vd)
             // keep a reference so GDCE doesn't delete it !
             gIR->usedArray.push_back(llvm::ConstantExpr::getBitCast(gv, getVoidPtrType()));
         }
+        #endif
     }
 }
 
@@ -906,7 +910,7 @@ DValue* DtoDeclarationExp(Dsymbol* declaration)
                 ExpInitializer* ex = vd->init->isExpInitializer();
                 assert(ex && "ref vars must have expression initializer");
                 assert(ex->exp);
-                AssignExp* as = dynamic_cast<AssignExp*>(ex->exp);
+                AssignExp* as = ex->exp->isAssignExp();
                 assert(as && "ref vars must be initialized by an assign exp");
                 vd->ir.irLocal->value = as->e2->toElem(gIR)->getLVal();
             }
@@ -937,10 +941,10 @@ DValue* DtoDeclarationExp(Dsymbol* declaration)
                 //allocainst->setAlignment(vd->type->alignsize()); // TODO
                 vd->ir.irLocal->value = allocainst;
 
+                #ifndef DISABLE_DEBUG_INFO
                 if (global.params.symdebug)
-                {
                     DtoDwarfLocalVariable(allocainst, vd);
-                }
+                #endif
             }
             else
             {
@@ -1053,9 +1057,11 @@ LLValue* DtoRawVarDeclaration(VarDeclaration* var, LLValue* addr)
     {
         addr = DtoAlloca(var->type, var->toChars());
 
+        #ifndef DISABLE_DEBUG_INFO
         // add debug info
         if (global.params.symdebug)
             DtoDwarfLocalVariable(addr, var);
+        #endif
     }
 
     // referenced by nested function?

gen/llvmhelpers.h

@@ -156,7 +156,7 @@ LLValue* makeLValue(Loc& loc, DValue* value);
 ////////////////////////////////////////////
 
 /// convert DMD calling conv to LLVM
-unsigned DtoCallingConv(Loc loc, LINK l);
+llvm::CallingConv::ID DtoCallingConv(Loc loc, LINK l);
 
 ///
 TypeFunction* DtoTypeFunction(DValue* fnval);

gen/logger.cpp

@@ -12,7 +12,7 @@
 
 #include "llvm/GlobalValue.h"
 #include "llvm/Support/Casting.h"
-#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/raw_os_ostream.h"
 #include "llvm/Assembly/Writer.h"
 
 #include "gen/logger.h"
@@ -27,10 +27,11 @@ void Stream::writeValue(std::ostream& OS, const llvm::Value& V) {
     // Constants don't always get their types pretty-printed.
     // (Only treat non-global constants like this, so that e.g. global variables
     // still get their initializers printed)
+    llvm::raw_os_ostream raw(OS);
     if (llvm::isa<llvm::Constant>(V) && !llvm::isa<llvm::GlobalValue>(V))
-        llvm::WriteAsOperand(OS, &V, true, gIR->module);
+        llvm::WriteAsOperand(raw, &V, true, gIR->module);
     else
-        OS << V;
+        V.print(raw);
 }
 
 namespace Logger

gen/logger.h

@@ -26,13 +26,15 @@ public:
     Stream(std::ostream* S) : OS(S) {}
     Stream(std::ostream& S) : OS(&S) {}
 
+    /*
     Stream operator << (std::ios_base &(*Func)(std::ios_base&)) {
       if (OS) *OS << Func;
       return *this;
     }
+    */
 
     Stream operator << (std::ostream &(*Func)(std::ostream&)) {
-      if (OS) *OS << Func;
+      if (OS) Func(*OS);
       return *this;
     }
 

gen/main.cpp

@@ -484,10 +484,15 @@ LDC_TARGETS
         FeaturesStr = Features.getString();
     }
 
-    std::auto_ptr<llvm::TargetMachine> target(theTarget->createTargetMachine(triple, FeaturesStr));
+    // FIXME
-    assert(target.get() && "Could not allocate target machine!");
+    //std::auto_ptr<llvm::TargetMachine> target(theTarget->createTargetMachine(triple, FeaturesStr));
-    gTargetMachine = target.get();
+    //assert(target.get() && "Could not allocate target machine!");
-    gTargetData = gTargetMachine->getTargetData();
+    //gTargetMachine = target.get();
+
+    llvm::TargetMachine* target = theTarget->createTargetMachine(triple, FeaturesStr);
+    gTargetMachine = target;
+
+    gTargetData = target->getTargetData();
 
     // get final data layout
     std::string datalayout = gTargetData->getStringRepresentation();

gen/optimizer.cpp

@@ -107,7 +107,7 @@ static void addPassesForOptLevel(PassManager& pm) {
     {
         //addPass(pm, createStripDeadPrototypesPass());
         addPass(pm, createGlobalDCEPass());
-        addPass(pm, createRaiseAllocationsPass());
+        addPass(pm, createPromoteMemoryToRegisterPass());
         addPass(pm, createCFGSimplificationPass());
         if (optimizeLevel == 1)
             addPass(pm, createPromoteMemoryToRegisterPass());
@@ -177,7 +177,7 @@ static void addPassesForOptLevel(PassManager& pm) {
         addPass(pm, createCFGSimplificationPass());
         addPass(pm, createScalarReplAggregatesPass());
         addPass(pm, createInstructionCombiningPass());
-        addPass(pm, createCondPropagationPass());
+        addPass(pm, createConstantPropagationPass());
 
         addPass(pm, createReassociatePass());
         addPass(pm, createLoopRotatePass());
@@ -194,7 +194,7 @@ static void addPassesForOptLevel(PassManager& pm) {
         addPass(pm, createSCCPPass());
 
         addPass(pm, createInstructionCombiningPass());
-        addPass(pm, createCondPropagationPass());
+        addPass(pm, createConstantPropagationPass());
 
         addPass(pm, createDeadStoreEliminationPass());
         addPass(pm, createAggressiveDCEPass());

gen/passes/SimplifyDRuntimeCalls.cpp

@@ -18,6 +18,7 @@
 
 #include "Passes.h"
 
+#include "llvm/Function.h"
 #include "llvm/Pass.h"
 #include "llvm/Intrinsics.h"
 #include "llvm/Support/IRBuilder.h"

gen/statements.cpp

@@ -53,8 +53,10 @@ void ReturnStatement::toIR(IRState* p)
     Logger::println("ReturnStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     // is there a return value expression?
     if (exp || (!exp && (p->topfunc() == p->mainFunc)) )
@@ -78,8 +80,10 @@ void ReturnStatement::toIR(IRState* p)
             // emit scopes
             DtoEnclosingHandlers(loc, NULL);
 
+            #ifndef DISABLE_DEBUG_INFO
             // emit dbg end function
             if (global.params.symdebug) DtoDwarfFuncEnd(f->decl);
+            #endif
 
             // emit ret
             llvm::ReturnInst::Create(gIR->context(), p->scopebb());
@@ -126,7 +130,9 @@ void ReturnStatement::toIR(IRState* p)
 
             DtoEnclosingHandlers(loc, NULL);
 
+            #ifndef DISABLE_DEBUG_INFO
             if (global.params.symdebug) DtoDwarfFuncEnd(p->func()->decl);
+            #endif
             llvm::ReturnInst::Create(gIR->context(), v, p->scopebb());
         }
     }
@@ -136,7 +142,9 @@ void ReturnStatement::toIR(IRState* p)
         assert(p->topfunc()->getReturnType() == LLType::getVoidTy(gIR->context()));
         DtoEnclosingHandlers(loc, NULL);
 
+        #ifndef DISABLE_DEBUG_INFO
         if (global.params.symdebug) DtoDwarfFuncEnd(p->func()->decl);
+        #endif
         llvm::ReturnInst::Create(gIR->context(), p->scopebb());
     }
 
@@ -153,8 +161,10 @@ void ExpStatement::toIR(IRState* p)
     Logger::println("ExpStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     if (exp) {
         if (global.params.llvmAnnotate)
@@ -182,8 +192,10 @@ void IfStatement::toIR(IRState* p)
     Logger::println("IfStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     if (match)
         DtoRawVarDeclaration(match);
@@ -270,8 +282,10 @@ void WhileStatement::toIR(IRState* p)
     Logger::println("WhileStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     // create while blocks
     llvm::BasicBlock* oldend = gIR->scopeend();
@@ -318,8 +332,10 @@ void DoStatement::toIR(IRState* p)
     Logger::println("DoStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     // create while blocks
     llvm::BasicBlock* oldend = gIR->scopeend();
@@ -363,8 +379,10 @@ void ForStatement::toIR(IRState* p)
     Logger::println("ForStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     // create for blocks
     llvm::BasicBlock* oldend = gIR->scopeend();
@@ -443,8 +461,10 @@ void BreakStatement::toIR(IRState* p)
     if (p->scopereturned())
         return;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     if (ident != 0) {
         Logger::println("ident = %s", ident->toChars());
@@ -498,8 +518,10 @@ void ContinueStatement::toIR(IRState* p)
     Logger::println("ContinueStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     if (ident != 0) {
         Logger::println("ident = %s", ident->toChars());
@@ -564,8 +586,10 @@ void TryFinallyStatement::toIR(IRState* p)
     Logger::println("TryFinallyStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     // if there's no finalbody or no body, things are simple
     if (!finalbody) {
@@ -642,8 +666,10 @@ void TryCatchStatement::toIR(IRState* p)
     Logger::println("TryCatchStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     // create basic blocks
     llvm::BasicBlock* oldend = p->scopeend();
@@ -698,13 +724,17 @@ void ThrowStatement::toIR(IRState* p)
     Logger::println("ThrowStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     assert(exp);
     DValue* e = exp->toElem(p);
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug) DtoDwarfFuncEnd(gIR->func()->decl);
+    #endif
 
     llvm::Function* fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_throw_exception");
     //Logger::cout() << "calling: " << *fn << '\n';
@@ -780,8 +810,10 @@ void SwitchStatement::toIR(IRState* p)
     Logger::println("SwitchStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     llvm::BasicBlock* oldend = gIR->scopeend();
 
@@ -951,8 +983,10 @@ void UnrolledLoopStatement::toIR(IRState* p)
     if (!statements || !statements->dim)
         return;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     // DMD doesn't fold stuff like continue/break, and since this isn't really a loop
     // we have to keep track of each statement and jump to the next/end on continue/break
@@ -1017,8 +1051,10 @@ void ForeachStatement::toIR(IRState* p)
     Logger::println("ForeachStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     //assert(arguments->dim == 1);
     assert(value != 0);
@@ -1149,8 +1185,10 @@ void ForeachRangeStatement::toIR(IRState* p)
     Logger::println("ForeachRangeStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     // evaluate lwr/upr
     assert(lwr->type->isintegral());
@@ -1298,8 +1336,10 @@ void GotoStatement::toIR(IRState* p)
     Logger::println("GotoStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     llvm::BasicBlock* oldend = gIR->scopeend();
     llvm::BasicBlock* bb = llvm::BasicBlock::Create(gIR->context(), "aftergoto", p->topfunc(), oldend);
@@ -1316,8 +1356,10 @@ void GotoDefaultStatement::toIR(IRState* p)
     Logger::println("GotoDefaultStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     llvm::BasicBlock* oldend = gIR->scopeend();
     llvm::BasicBlock* bb = llvm::BasicBlock::Create(gIR->context(), "aftergotodefault", p->topfunc(), oldend);
@@ -1338,8 +1380,10 @@ void GotoCaseStatement::toIR(IRState* p)
     Logger::println("GotoCaseStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     llvm::BasicBlock* oldend = gIR->scopeend();
     llvm::BasicBlock* bb = llvm::BasicBlock::Create(gIR->context(), "aftergotocase", p->topfunc(), oldend);
@@ -1363,8 +1407,10 @@ void WithStatement::toIR(IRState* p)
     Logger::println("WithStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     assert(exp);
     assert(body);
@@ -1393,8 +1439,10 @@ void SynchronizedStatement::toIR(IRState* p)
     Logger::println("SynchronizedStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     // enter lock
     if (exp)
@@ -1430,8 +1478,10 @@ void VolatileStatement::toIR(IRState* p)
     Logger::println("VolatileStatement::toIR(): %s", loc.toChars());
     LOG_SCOPE;
 
+    #ifndef DISABLE_DEBUG_INFO
     if (global.params.symdebug)
         DtoDwarfStopPoint(loc.linnum);
+    #endif
 
     // mark in-volatile
     // FIXME

gen/tocall.cpp

@@ -35,7 +35,7 @@ TypeFunction* DtoTypeFunction(DValue* fnval)
 
 //////////////////////////////////////////////////////////////////////////////////////////
 
-unsigned DtoCallingConv(Loc loc, LINK l)
+llvm::CallingConv::ID DtoCallingConv(Loc loc, LINK l)
 {
     if (l == LINKc || l == LINKcpp || l == LINKintrinsic)
         return llvm::CallingConv::C;
@@ -207,7 +207,7 @@ void DtoBuildDVarArgList(std::vector<LLValue*>& args, std::vector<llvm::Attribut
     pinits.push_back(DtoConstSize_t(vtype->getNumElements()));
     pinits.push_back(llvm::ConstantExpr::getBitCast(typeinfomem, getPtrToType(typeinfotype)));
     const LLType* tiarrty = DtoType(Type::typeinfo->type->arrayOf());
-    tiinits = LLConstantStruct::get(gIR->context(), pinits);
+    tiinits = LLConstantStruct::get(gIR->context(), pinits, false);
     LLValue* typeinfoarrayparam = new llvm::GlobalVariable(*gIR->module, tiarrty,
         true, llvm::GlobalValue::InternalLinkage, tiinits, "._arguments.array");
 
@@ -279,7 +279,7 @@ DValue* DtoCallFunction(Loc& loc, Type* resulttype, DValue* fnval, Expressions*
     bool nestedcall = tf->fty.arg_nest;
     bool dvarargs = (tf->linkage == LINKd && tf->varargs == 1);
 
-    unsigned callconv = DtoCallingConv(loc, tf->linkage);
+    llvm::CallingConv::ID callconv = DtoCallingConv(loc, tf->linkage);
 
     // get callee llvm value
     LLValue* callable = DtoCallableValue(fnval);

gen/todebug.cpp

@@ -19,6 +19,8 @@
 
 using namespace llvm::dwarf;
 
+#ifndef DISABLE_DEBUG_INFO
+
 #define DBG_NULL    ( LLConstant::getNullValue(DBG_TYPE) )
 #define DBG_TYPE    ( getPtrToType(llvm::StructType::get(gIR->context(),NULL,NULL)) )
 #define DBG_CAST(X) ( llvm::ConstantExpr::getBitCast(X, DBG_TYPE) )
@@ -636,3 +638,5 @@ void DtoDwarfStopPoint(unsigned ln)
         gIR->scopebb()
     );
 }
+
+#endif

gen/todebug.h

@@ -1,6 +1,8 @@
 #ifndef LDC_GEN_TODEBUG_H
 #define LDC_GEN_TODEBUG_H
 
+#ifndef DISABLE_DEBUG_INFO
+
 void RegisterDwarfSymbols(llvm::Module* mod);
 
 /**
@@ -45,6 +47,6 @@ void DtoDwarfLocalVariable(LLValue* ll, VarDeclaration* vd);
  */
 llvm::DIGlobalVariable DtoDwarfGlobalVariable(LLGlobalVariable* ll, VarDeclaration* vd);
 
+#endif // DISABLE_DEBUG_INFO
+
 #endif // LDC_GEN_TODEBUG_H
-
-

gen/tollvm.cpp

@@ -362,7 +362,7 @@ LLValue* DtoPointedType(LLValue* ptr, LLValue* val)
         return val;
     }
     // ptr is integer pointer
-    else if (ptrTy->isInteger())
+    else if (ptrTy->isIntegerTy())
     {
         // val is integer
         assert(valTy->isInteger());

gen/toobj.cpp

@@ -14,7 +14,6 @@
 #include "llvm/Analysis/Verifier.h"
 #include "llvm/Bitcode/ReaderWriter.h"
 #include "llvm/Module.h"
-#include "llvm/ModuleProvider.h"
 #include "llvm/PassManager.h"
 #include "llvm/LinkAllPasses.h"
 #include "llvm/System/Program.h"
@@ -22,6 +21,7 @@
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/FormattedStream.h"
 #include "llvm/Target/TargetMachine.h"
+#include "llvm/CodeGen/MachineCodeEmitter.h"
 
 #include "mars.h"
 #include "module.h"
@@ -114,11 +114,13 @@ llvm::Module* Module::genLLVMModule(llvm::LLVMContext& context, Ir* sir)
     // allocate the target abi
     gABI = TargetABI::getTarget();
 
+    #ifndef DISABLE_DEBUG_INFO
     // debug info
     if (global.params.symdebug) {
         RegisterDwarfSymbols(ir.module);
         DtoDwarfCompileUnit(this);
     }
+    #endif
 
     // handle invalid 'objectø module
     if (!ClassDeclaration::object) {
@@ -225,10 +227,11 @@ void writeModule(llvm::Module* m, std::string filename)
         bcpath.eraseSuffix();
         bcpath.appendSuffix(std::string(global.bc_ext));
         Logger::println("Writing LLVM bitcode to: %s\n", bcpath.c_str());
-        std::ofstream bos(bcpath.c_str(), std::ios::binary);
+        std::string errinfo;
-        if (bos.fail())
+        llvm::raw_fd_ostream bos(bcpath.c_str(), errinfo, llvm::raw_fd_ostream::F_Binary);
+        if (bos.has_error())
         {
-            error("cannot write LLVM bitcode, failed to open file '%s'", bcpath.c_str());
+            error("cannot write LLVM bitcode file '%s': %s", bcpath.c_str(), errinfo.c_str());
             fatal();
         }
         llvm::WriteBitcodeToFile(m, bos);
@@ -240,10 +243,11 @@ void writeModule(llvm::Module* m, std::string filename)
         llpath.eraseSuffix();
         llpath.appendSuffix(std::string(global.ll_ext));
         Logger::println("Writing LLVM asm to: %s\n", llpath.c_str());
-        std::ofstream aos(llpath.c_str());
+        std::string errinfo;
-        if (aos.fail())
+        llvm::raw_fd_ostream aos(llpath.c_str(), errinfo);
+        if (aos.has_error())
         {
-            error("cannot write LLVM asm, failed to open file '%s'", llpath.c_str());
+            error("cannot write LLVM asm file '%s': %s", llpath.c_str(), errinfo.c_str());
             fatal();
         }
         m->print(aos, NULL);
@@ -260,7 +264,7 @@ void writeModule(llvm::Module* m, std::string filename)
         Logger::println("Writing native asm to: %s\n", spath.c_str());
         std::string err;
         {
-            llvm::raw_fd_ostream out(spath.c_str(), false, true, err);
+            llvm::raw_fd_ostream out(spath.c_str(), err);
             if (err.empty())
             {
                 write_asm_to_file(*gTargetMachine, *m, out);
@@ -292,17 +296,13 @@ void write_asm_to_file(llvm::TargetMachine &Target, llvm::Module& m, llvm::raw_f
     using namespace llvm;
 
     // Build up all of the passes that we want to do to the module.
-    ExistingModuleProvider Provider(&m);
+    FunctionPassManager Passes(&m);
-    FunctionPassManager Passes(&Provider);
 
     if (const TargetData *TD = Target.getTargetData())
         Passes.add(new TargetData(*TD));
     else
         Passes.add(new TargetData(&m));
 
-    // Ask the target to add backend passes as necessary.
-    MachineCodeEmitter *MCE = 0;
-
     // Last argument is enum CodeGenOpt::Level OptLevel
     // debug info doesn't work properly with OptLevel != None!
     CodeGenOpt::Level LastArg = CodeGenOpt::Default;
@@ -312,11 +312,8 @@ void write_asm_to_file(llvm::TargetMachine &Target, llvm::Module& m, llvm::raw_f
         LastArg = CodeGenOpt::Aggressive;
 
     llvm::formatted_raw_ostream fout(out);
-    FileModel::Model mod = Target.addPassesToEmitFile(Passes, fout, TargetMachine::AssemblyFile, LastArg);
+    if (Target.addPassesToEmitFile(Passes, fout, TargetMachine::CGFT_AssemblyFile, LastArg))
-    assert(mod == FileModel::AsmFile);
+        assert(0 && "no support for asm output");
-
-    bool err = Target.addPassesToEmitFileFinish(Passes, MCE, LastArg);
-    assert(!err);
 
     Passes.doInitialization();
 
@@ -328,9 +325,9 @@ void write_asm_to_file(llvm::TargetMachine &Target, llvm::Module& m, llvm::raw_f
     Passes.doFinalization();
 
     // release module from module provider so we can delete it ourselves
-    std::string Err;
+    //std::string Err;
-    llvm::Module* rmod = Provider.releaseModule(&Err);
+    //llvm::Module* rmod = Provider.releaseModule(&Err);
-    assert(rmod);
+    //assert(rmod);
 }
 
 /* ================================================================== */
@@ -350,14 +347,14 @@ void assemble(const llvm::sys::Path& asmpath, const llvm::sys::Path& objpath)
     //  and linker because we don't know where to put the _start symbol.
     //  GCC mysteriously knows how to do it.
     std::vector<std::string> args;
-    args.push_back(gcc.toString());
+    args.push_back(gcc.str());
     args.push_back("-fno-strict-aliasing");
     args.push_back("-O3");
     args.push_back("-c");
     args.push_back("-xassembler");
-    args.push_back(asmpath.toString());
+    args.push_back(asmpath.str());
     args.push_back("-o");
-    args.push_back(objpath.toString());
+    args.push_back(objpath.str());
 
     //FIXME: only use this if needed?
     args.push_back("-fpic");
@@ -431,11 +428,13 @@ llvm::Function* build_module_ctor()
     IRBuilder<> builder(bb);
 
     // debug info
+    #ifndef DISABLE_DEBUG_INFO
     LLGlobalVariable* subprog;
     if(global.params.symdebug) {
         subprog = DtoDwarfSubProgramInternal(name.c_str(), name.c_str()).getGV();
         builder.CreateCall(gIR->module->getFunction("llvm.dbg.func.start"), DBG_CAST(subprog));
     }
+    #endif
 
     for (size_t i=0; i<n; i++) {
         llvm::Function* f = gIR->ctors[i]->ir.irFunc->func;
@@ -444,8 +443,10 @@ llvm::Function* build_module_ctor()
     }
 
     // debug info end
+    #ifndef DISABLE_DEBUG_INFO
     if(global.params.symdebug)
         builder.CreateCall(gIR->module->getFunction("llvm.dbg.region.end"), DBG_CAST(subprog));
+    #endif
 
     builder.CreateRetVoid();
     return fn;
@@ -475,12 +476,14 @@ static llvm::Function* build_module_dtor()
     llvm::BasicBlock* bb = llvm::BasicBlock::Create(gIR->context(), "entry", fn);
     IRBuilder<> builder(bb);
 
+    #ifndef DISABLE_DEBUG_INFO
     // debug info
     LLGlobalVariable* subprog;
     if(global.params.symdebug) {
         subprog = DtoDwarfSubProgramInternal(name.c_str(), name.c_str()).getGV();
         builder.CreateCall(gIR->module->getFunction("llvm.dbg.func.start"), DBG_CAST(subprog));
     }
+    #endif
 
     for (size_t i=0; i<n; i++) {
         llvm::Function* f = gIR->dtors[i]->ir.irFunc->func;
@@ -488,9 +491,11 @@ static llvm::Function* build_module_dtor()
         call->setCallingConv(DtoCallingConv(0, LINKd));
     }
 
+    #ifndef DISABLE_DEBUG_INFO
     // debug info end
     if(global.params.symdebug)
         builder.CreateCall(gIR->module->getFunction("llvm.dbg.region.end"), DBG_CAST(subprog));
+    #endif
 
     builder.CreateRetVoid();
     return fn;
@@ -520,12 +525,14 @@ static llvm::Function* build_module_unittest()
     llvm::BasicBlock* bb = llvm::BasicBlock::Create(gIR->context(), "entry", fn);
     IRBuilder<> builder(bb);
 
+    #ifndef DISABLE_DEBUG_INFO
     // debug info
     LLGlobalVariable* subprog;
     if(global.params.symdebug) {
         subprog = DtoDwarfSubProgramInternal(name.c_str(), name.c_str()).getGV();
         builder.CreateCall(gIR->module->getFunction("llvm.dbg.func.start"), DBG_CAST(subprog));
     }
+    #endif
 
     for (size_t i=0; i<n; i++) {
         llvm::Function* f = gIR->unitTests[i]->ir.irFunc->func;
@@ -533,9 +540,11 @@ static llvm::Function* build_module_unittest()
         call->setCallingConv(DtoCallingConv(0, LINKd));
     }
 
+    #ifndef DISABLE_DEBUG_INFO
     // debug info end
     if(global.params.symdebug)
         builder.CreateCall(gIR->module->getFunction("llvm.dbg.region.end"), DBG_CAST(subprog));
+    #endif
 
     builder.CreateRetVoid();
     return fn;
@@ -578,11 +587,13 @@ static LLFunction* build_module_reference_and_ctor(LLConstant* moduleinfo)
     IRBuilder<> builder(bb);
 
     // debug info
+    #ifndef DISABLE_DEBUG_INFO
     LLGlobalVariable* subprog;
     if(global.params.symdebug) {
         subprog = DtoDwarfSubProgramInternal(fname.c_str(), fname.c_str()).getGV();
         builder.CreateCall(gIR->module->getFunction("llvm.dbg.func.start"), DBG_CAST(subprog));
     }
+    #endif
 
     // get current beginning
     LLValue* curbeg = builder.CreateLoad(mref, "current");
@@ -594,9 +605,11 @@ static LLFunction* build_module_reference_and_ctor(LLConstant* moduleinfo)
     // replace beginning
     builder.CreateStore(thismref, mref);
 
+    #ifndef DISABLE_DEBUG_INFO
     // debug info end
     if(global.params.symdebug)
         builder.CreateCall(gIR->module->getFunction("llvm.dbg.region.end"), DBG_CAST(subprog));
+    #endif
 
     // return
     builder.CreateRetVoid();

ir/irclass.cpp

@@ -483,7 +483,7 @@ LLConstant * IrStruct::getClassInfoInterfaces()
 
         // create Interface struct
         LLConstant* inits[3] = { ci, vtb, off };
-        LLConstant* entry = LLConstantStruct::get(gIR->context(), inits, 3);
+        LLConstant* entry = LLConstantStruct::get(gIR->context(), inits, 3, false);
         constants.push_back(entry);
     }
 

ir/irlandingpad.cpp

@@ -133,7 +133,7 @@ void IRLandingPad::constructLandingPad(llvm::BasicBlock* inBB)
     }
     // if there's a finally, the eh table has to have a 0 action
     if(hasFinally)
-        selectorargs.push_back(DtoConstSize_t(0));//LLConstantInt::get(LLType::getInt32Ty(gIR->context()), 0));
+        selectorargs.push_back(DtoConstUint(0));
 
     // personality fn
     llvm::Function* personality_fn = LLVM_D_GetRuntimeFunction(gIR->module, "_d_eh_personality");
@@ -151,11 +151,7 @@ void IRLandingPad::constructLandingPad(llvm::BasicBlock* inBB)
     }
 
     // eh_sel = llvm.eh.selector(eh_ptr, cast(byte*)&_d_eh_personality, <selectorargs>);
-    llvm::Function* eh_selector_fn;
+    llvm::Function* eh_selector_fn = GET_INTRINSIC_DECL(eh_selector);
-    if (global.params.is64bit)
-        eh_selector_fn = GET_INTRINSIC_DECL(eh_selector_i64);
-    else
-        eh_selector_fn = GET_INTRINSIC_DECL(eh_selector_i32);
     LLValue* eh_sel = gIR->ir->CreateCall(eh_selector_fn, selectorargs.begin(), selectorargs.end());
 
     // emit finallys and switches that branch to catches until there are no more catches
@@ -186,7 +182,7 @@ void IRLandingPad::constructLandingPad(llvm::BasicBlock* inBB)
             }
             // dubious comment
             // catches matched first get the largest switchval, so do size - unique int
-            llvm::ConstantInt* switchval = LLConstantInt::get(DtoSize_t(), catchToInt[rit->catchType]);
+            llvm::ConstantInt* switchval = DtoConstUint(catchToInt[rit->catchType]);
             // and make sure we don't add the same switchval twice, may happen with nested trys
             if(!switchinst->findCaseValue(switchval))
                 switchinst->addCase(switchval, rit->target);

ir/irtype.cpp

@@ -1,10 +1,14 @@
 #include "llvm/DerivedTypes.h"
+#include "llvm/LLVMContext.h"
 #include "mars.h"
 #include "mtype.h"
 #include "gen/irstate.h"
 #include "gen/logger.h"
 #include "ir/irtype.h"
 
+// This code uses llvm::getGlobalContext() as these functions are invoked before gIR is set.
+// ... thus it segfaults on gIR==NULL
+
 //////////////////////////////////////////////////////////////////////////////
 
 extern const llvm::Type* DtoType(Type* dt);
@@ -43,30 +47,31 @@ const llvm::Type * IrTypeBasic::basic2llvm(Type* t)
 {
     const llvm::Type* t2;
 
-    // FIXME: don't use getGlobalContext
+    llvm::LLVMContext& ctx = llvm::getGlobalContext();
+
     switch(t->ty)
     {
     case Tvoid:
-        return llvm::Type::getVoidTy(llvm::getGlobalContext());
+        return llvm::Type::getVoidTy(ctx);
 
     case Tint8:
     case Tuns8:
     case Tchar:
-        return llvm::Type::getInt8Ty(llvm::getGlobalContext());
+        return llvm::Type::getInt8Ty(ctx);
 
     case Tint16:
     case Tuns16:
     case Twchar:
-        return llvm::Type::getInt16Ty(llvm::getGlobalContext());
+        return llvm::Type::getInt16Ty(ctx);
 
     case Tint32:
     case Tuns32:
     case Tdchar:
-        return llvm::Type::getInt32Ty(llvm::getGlobalContext());
+        return llvm::Type::getInt32Ty(ctx);
 
     case Tint64:
     case Tuns64:
-        return llvm::Type::getInt64Ty(llvm::getGlobalContext());
+        return llvm::Type::getInt64Ty(ctx);
 
     /*
     case Tint128:
@@ -76,37 +81,37 @@ const llvm::Type * IrTypeBasic::basic2llvm(Type* t)
 
     case Tfloat32:
     case Timaginary32:
-        return llvm::Type::getFloatTy(llvm::getGlobalContext());
+        return llvm::Type::getFloatTy(ctx);
 
     case Tfloat64:
     case Timaginary64:
-        return llvm::Type::getDoubleTy(llvm::getGlobalContext());
+        return llvm::Type::getDoubleTy(ctx);
 
     case Tfloat80:
     case Timaginary80:
         // only x86 has 80bit float
         if (global.params.cpu == ARCHx86 || global.params.cpu == ARCHx86_64)
-            return llvm::Type::getX86_FP80Ty(llvm::getGlobalContext());
+            return llvm::Type::getX86_FP80Ty(ctx);
         // other platforms use 64bit reals
         else
-            return llvm::Type::getDoubleTy(llvm::getGlobalContext());
+            return llvm::Type::getDoubleTy(ctx);
 
     case Tcomplex32:
-        t2 = llvm::Type::getFloatTy(llvm::getGlobalContext());
+        t2 = llvm::Type::getFloatTy(ctx);
-        return llvm::StructType::get(llvm::getGlobalContext(), t2, t2, NULL);
+        return llvm::StructType::get(ctx, t2, t2, NULL);
 
     case Tcomplex64:
-        t2 = llvm::Type::getDoubleTy(llvm::getGlobalContext());
+        t2 = llvm::Type::getDoubleTy(ctx);
-        return llvm::StructType::get(llvm::getGlobalContext(), t2, t2, NULL);
+        return llvm::StructType::get(ctx, t2, t2, NULL);
 
     case Tcomplex80:
         t2 = (global.params.cpu == ARCHx86 || global.params.cpu == ARCHx86_64)
-            ? llvm::Type::getX86_FP80Ty(llvm::getGlobalContext())
+            ? llvm::Type::getX86_FP80Ty(ctx)
-            : llvm::Type::getDoubleTy(llvm::getGlobalContext());
+            : llvm::Type::getDoubleTy(ctx);
-        return llvm::StructType::get(llvm::getGlobalContext(), t2, t2, NULL);
+        return llvm::StructType::get(ctx, t2, t2, NULL);
 
     case Tbool:
-        return llvm::Type::getInt1Ty(llvm::getGlobalContext());
+        return llvm::Type::getInt1Ty(ctx);
     }
 
     assert(0 && "not basic type");

ir/irvar.cpp

@@ -1,5 +1,6 @@
 #include "gen/llvm.h"
 #include "declaration.h"
+#include "gen/irstate.h"
 #include "ir/irvar.h"
 
 
@@ -18,7 +19,7 @@ IrVar::IrVar(VarDeclaration* var)
 //////////////////////////////////////////////////////////////////////////////
 
 IrGlobal::IrGlobal(VarDeclaration* v): IrVar(v),
-    type(llvm::OpaqueType::get(llvm::getGlobalContext()))
+    type(llvm::OpaqueType::get(gIR->context()))
 {
     constInit = NULL;
 }

tango-0.99.9.patch

@@ -1,6 +1,6 @@
 Index: tango/core/rt/compiler/ldc/rt/lifetime.d
 ===================================================================
---- tango/core/rt/compiler/ldc/rt/lifetime.d	(revision 5368)
+--- tango/core/rt/compiler/ldc/rt/lifetime.d	(revision 5462)
 +++ tango/core/rt/compiler/ldc/rt/lifetime.d	(working copy)
 @@ -786,6 +786,7 @@
      return *cast(long*)px;
@@ -53,3 +53,650 @@ Index: tango/core/rt/compiler/ldc/rt/lifetime.d
  
  /**
   *
+Index: tango/core/rt/compiler/ldc/rt/eh.d
+===================================================================
+--- tango/core/rt/compiler/ldc/rt/eh.d	(revision 5462)
++++ tango/core/rt/compiler/ldc/rt/eh.d	(working copy)
+@@ -1,38 +1,34 @@
+ /**
+  * This module contains functions and structures required for
+- * exception handling.
++ * dwarf exception handling with llvm
+  */
+ module rt.eh;
+ 
+-import ldc.cstdarg;
+-import rt.compiler.util.console;
++//debug = EH_personality;
+ 
+-// debug = EH_personality;
+-
+ // current EH implementation works on x86
+ // if it has a working unwind runtime
+ version(X86) {
+     version(linux) version=X86_UNWIND;
+     version(darwin) version=X86_UNWIND;
+     version(solaris) version=X86_UNWIND;
+-    version(freebsd) version=X86_UNWIND;
+ }
+ version(X86_64) {
+     version(linux) version=X86_UNWIND;
+     version(darwin) version=X86_UNWIND;
+     version(solaris) version=X86_UNWIND;
+-    version(freebsd) version=X86_UNWIND;
+ }
+ 
+ //version = HP_LIBUNWIND;
+ 
+ private extern(C) void abort();
+ private extern(C) int printf(char*, ...);
+-private extern(C) int vprintf(char*, va_list va);
++//private extern(C) int vprintf(char*, va_list va);
+ 
+ // D runtime functions
+ extern(C) {
+-    int _d_isbaseof(ClassInfo oc, ClassInfo c);
++//    int _d_isbaseof(ClassInfo oc, ClassInfo c);
++    Object _d_dynamic_cast(Object o, ClassInfo c);
+ }
+ 
+ // libunwind headers
+@@ -74,16 +70,19 @@
+ // interface to HP's libunwind from http://www.nongnu.org/libunwind/
+ version(HP_LIBUNWIND)
+ {
++    // Haven't checked whether and how it has _Unwind_Get{Text,Data}RelBase
++    pragma (msg, "HP_LIBUNWIND interface is out of date and untested");
++
+     void __libunwind_Unwind_Resume(_Unwind_Exception *);
+     _Unwind_Reason_Code __libunwind_Unwind_RaiseException(_Unwind_Exception *);
+     ptrdiff_t __libunwind_Unwind_GetLanguageSpecificData(_Unwind_Context_Ptr
+             context);
+-    ptrdiff_t __libunwind_Unwind_GetIP(_Unwind_Context_Ptr context);
++    size_t __libunwind_Unwind_GetIP(_Unwind_Context_Ptr context);
+     ptrdiff_t __libunwind_Unwind_SetIP(_Unwind_Context_Ptr context,
+             ptrdiff_t new_value);
+     ptrdiff_t __libunwind_Unwind_SetGR(_Unwind_Context_Ptr context, int index,
+             ptrdiff_t new_value);
+-    ptrdiff_t __libunwind_Unwind_GetRegionStart(_Unwind_Context_Ptr context);
++    size_t __libunwind_Unwind_GetRegionStart(_Unwind_Context_Ptr context);
+ 
+     alias __libunwind_Unwind_Resume _Unwind_Resume;
+     alias __libunwind_Unwind_RaiseException _Unwind_RaiseException;
+@@ -94,27 +93,30 @@
+     alias __libunwind_Unwind_SetGR _Unwind_SetGR;
+     alias __libunwind_Unwind_GetRegionStart _Unwind_GetRegionStart;
+ }
+-else version(X86_UNWIND) 
++else version(X86_UNWIND)
+ {
+     void _Unwind_Resume(_Unwind_Exception*);
+     _Unwind_Reason_Code _Unwind_RaiseException(_Unwind_Exception*);
+     ptrdiff_t _Unwind_GetLanguageSpecificData(_Unwind_Context_Ptr context);
+-    ptrdiff_t _Unwind_GetIP(_Unwind_Context_Ptr context);
++    size_t _Unwind_GetIP(_Unwind_Context_Ptr context);
+     ptrdiff_t _Unwind_SetIP(_Unwind_Context_Ptr context, ptrdiff_t new_value);
+     ptrdiff_t _Unwind_SetGR(_Unwind_Context_Ptr context, int index,
+             ptrdiff_t new_value);
+-    ptrdiff_t _Unwind_GetRegionStart(_Unwind_Context_Ptr context);
++    size_t _Unwind_GetRegionStart(_Unwind_Context_Ptr context);
++
++    size_t _Unwind_GetTextRelBase(_Unwind_Context_Ptr);
++    size_t _Unwind_GetDataRelBase(_Unwind_Context_Ptr);
+ }
+ else
+ {
+     // runtime calls these directly
+     void _Unwind_Resume(_Unwind_Exception*)
+     {
+-        console("_Unwind_Resume is not implemented on this platform.\n");
++        printf("_Unwind_Resume is not implemented on this platform.\n");
+     }
+     _Unwind_Reason_Code _Unwind_RaiseException(_Unwind_Exception*)
+     {
+-        console("_Unwind_RaiseException is not implemented on this platform.\n");
++        printf("_Unwind_RaiseException is not implemented on this platform.\n");
+         return _Unwind_Reason_Code.FATAL_PHASE1_ERROR;
+     }
+ }
+@@ -122,14 +124,161 @@
+ }
+ 
+ // error and exit
+-extern(C) private void fatalerror(char[] format)
++extern(C) private void fatalerror(char* format, ...)
+ {
+-  printf("Fatal error in EH code: %.*s\n", format.length, format.ptr);
++//  va_list args;
++//  va_start(args, format);
++  printf("Fatal error in EH code: ");
++//  vprintf(format, args);
++  printf("\n");
+   abort();
+ }
+ 
+ 
+-// helpers for reading certain DWARF data
++// DWARF EH encoding enum
++// See e.g. http://refspecs.freestandards.org/LSB_3.1.1/LSB-Core-generic/LSB-Core-generic/dwarfext.html
++private enum : ubyte {
++  DW_EH_PE_omit    = 0xff, // value is not present
++
++  // value format
++  DW_EH_PE_absptr  = 0x00, // literal pointer
++  DW_EH_PE_uleb128 = 0x01,
++  DW_EH_PE_udata2  = 0x02, // unsigned 2-byte
++  DW_EH_PE_udata4  = 0x03,
++  DW_EH_PE_udata8  = 0x04,
++  DW_EH_PE_sleb128 = 0x09,
++  DW_EH_PE_sdata2  = 0x0a,
++  DW_EH_PE_sdata4  = 0x0b,
++  DW_EH_PE_sdata8  = 0x0c,
++
++  // value meaning
++  DW_EH_PE_pcrel    = 0x10, // relative to program counter
++  DW_EH_PE_textrel  = 0x20, // relative to .text
++  DW_EH_PE_datarel  = 0x30, // relative to .got or .eh_frame_hdr
++  DW_EH_PE_funcrel  = 0x40, // relative to beginning of function
++  DW_EH_PE_aligned  = 0x50, // is an aligned void*
++
++  // value is a pointer to the actual value
++  // this is a mask on top of one of the above
++  DW_EH_PE_indirect = 0x80
++}
++
++// Helpers for reading DWARF data
++
++// Given an encoding and a context, return the base to which the encoding is
++// relative
++private size_t base_of_encoded(_Unwind_Context_Ptr context, ubyte encoding)
++{
++  if (encoding == DW_EH_PE_omit)
++    return 0;
++
++  switch (encoding & 0x70) // ignore DW_EH_PE_indirect
++  {
++    case DW_EH_PE_absptr, DW_EH_PE_pcrel, DW_EH_PE_aligned:
++      return 0;
++
++    case DW_EH_PE_textrel: return _Unwind_GetTextRelBase(context);
++    case DW_EH_PE_datarel: return _Unwind_GetDataRelBase(context);
++    case DW_EH_PE_funcrel: return _Unwind_GetRegionStart(context);
++
++    default: fatalerror("Unrecognized base for DWARF value");
++  }
++}
++
++// Only defined for fixed-size encodings
++private size_t size_of_encoded(ubyte encoding)
++{
++  if (encoding == DW_EH_PE_omit)
++    return 0;
++
++  switch (encoding & 0x07) // ignore leb128
++  {
++    case DW_EH_PE_absptr: return (void*).sizeof;
++    case DW_EH_PE_udata2: return 2;
++    case DW_EH_PE_udata4: return 4;
++    case DW_EH_PE_udata8: return 8;
++
++    default: fatalerror("Unrecognized fixed-size DWARF value encoding");
++  }
++}
++
++// Actual value readers below: read a value from the given ubyte* into the
++// output parameter and return the pointer incremented past the value.
++
++// Like read_encoded_with_base but gets the base from the given context
++private ubyte* read_encoded(_Unwind_Context_Ptr context, ubyte encoding, ubyte* p, out size_t val)
++{
++  return read_encoded_with_base(encoding, base_of_encoded(context, encoding), p, val);
++}
++
++private ubyte* read_encoded_with_base(ubyte encoding, size_t base, ubyte* p, out size_t val)
++{
++  if (encoding == DW_EH_PE_aligned)
++  {
++    auto a = cast(size_t)p;
++    a = (a + (void*).sizeof - 1) & -(void*).sizeof;
++    val = *cast(size_t*)a;
++    return cast(ubyte*)(a + (void*).sizeof);
++  }
++
++  union U
++  {
++    size_t ptr;
++    ushort udata2;
++    uint   udata4;
++    ulong  udata8;
++    short  sdata2;
++    int    sdata4;
++    long   sdata8;
++  }
++
++  auto u = cast(U*)p;
++
++  size_t result;
++
++  switch (encoding & 0x0f)
++  {
++    case DW_EH_PE_absptr:
++      result = u.ptr;
++      p += (void*).sizeof;
++      break;
++
++    case DW_EH_PE_uleb128:
++    {
++      p = get_uleb128(p, result);
++      break;
++    }
++    case DW_EH_PE_sleb128:
++    {
++      ptrdiff_t sleb128;
++      p = get_sleb128(p, sleb128);
++      result = cast(size_t)sleb128;
++      break;
++    }
++
++    case DW_EH_PE_udata2: result = cast(size_t)u.udata2; p += 2; break;
++    case DW_EH_PE_udata4: result = cast(size_t)u.udata4; p += 4; break;
++    case DW_EH_PE_udata8: result = cast(size_t)u.udata8; p += 8; break;
++    case DW_EH_PE_sdata2: result = cast(size_t)u.sdata2; p += 2; break;
++    case DW_EH_PE_sdata4: result = cast(size_t)u.sdata4; p += 4; break;
++    case DW_EH_PE_sdata8: result = cast(size_t)u.sdata8; p += 8; break;
++
++    default: fatalerror("Unrecognized DWARF value encoding format");
++  }
++  if (result)
++  {
++    if ((encoding & 0x70) == DW_EH_PE_pcrel)
++      result += cast(size_t)u;
++    else
++      result += base;
++
++    if (encoding & DW_EH_PE_indirect)
++      result = *cast(size_t*)result;
++  }
++  val = result;
++  return p;
++}
++
+ private ubyte* get_uleb128(ubyte* addr, ref size_t res)
+ {
+   res = 0;
+@@ -137,7 +286,7 @@
+ 
+   // read as long as high bit is set
+   while(*addr & 0x80) {
+-    res |= (*addr & 0x7f) << bitsize;
++    res |= (*addr & 0x7fU) << bitsize;
+     bitsize += 7;
+     addr += 1;
+     if(bitsize >= size_t.sizeof*8)
+@@ -153,12 +302,12 @@
+ 
+ private ubyte* get_sleb128(ubyte* addr, ref ptrdiff_t res)
+ {
+-  res = 0;
++  size_t tres = 0;
+   size_t bitsize = 0;
+ 
+   // read as long as high bit is set
+   while(*addr & 0x80) {
+-    res |= (*addr & 0x7f) << bitsize;
++    tres |= (*addr & 0x7fU) << bitsize;
+     bitsize += 7;
+     addr += 1;
+     if(bitsize >= size_t.sizeof*8)
+@@ -167,12 +316,14 @@
+   // read last
+   if(bitsize != 0 && *addr >= 1 << size_t.sizeof*8 - bitsize)
+     fatalerror("tried to read sleb128 that exceeded size of size_t");
+-  res |= (*addr) << bitsize;
++  tres |= (*addr) << bitsize;
+ 
+   // take care of sign
+-  if(bitsize < size_t.sizeof*8 && ((*addr) & 0x40))
+-    res |= cast(ptrdiff_t)(-1) ^ ((1 << (bitsize+7)) - 1);
++  if(bitsize < size_t.sizeof*8 && (*addr & 0x40U) != 0)
++    tres |= cast(size_t)(-1) ^ ((1 << (bitsize+7)) - 1);
+ 
++  res = cast(ptrdiff_t)tres;
++
+   return addr + 1;
+ }
+ 
+@@ -190,8 +341,7 @@
+ 
+ // the 8-byte string identifying the type of exception
+ // the first 4 are for vendor, the second 4 for language
+-//TODO: This may be the wrong way around
+-const char[8] _d_exception_class = "LLDCD1\0\0";
++const char[8] _d_exception_class = "LDC_D_10";
+ 
+ 
+ //
+@@ -201,118 +351,174 @@
+ version(X86_UNWIND)
+ {
+ 
++// Various stuff we need
++struct Region
++{
++  ubyte* callsite_table;
++  ubyte* action_table;
++
++  // Note: classinfo_table points past the end of the table
++  ubyte* classinfo_table;
++
++  size_t start;
++  size_t lpStart_base; // landing pad base
++
++  ubyte ttypeEnc;
++  size_t ttype_base; // typeinfo base
++
++  ubyte callSiteEnc;
++}
++
+ // the personality routine gets called by the unwind handler and is responsible for
+ // reading the EH tables and deciding what to do
+ extern(C) _Unwind_Reason_Code _d_eh_personality(int ver, _Unwind_Action actions, ulong exception_class, _Unwind_Exception* exception_info, _Unwind_Context_Ptr context)
+ {
++  debug(EH_personality) printf("Entering personality routine, context=%p\n", context);
+   // check ver: the C++ Itanium ABI only allows ver == 1
+   if(ver != 1)
++  {
++    debug(EH_personality) printf("eh version mismatch\n");
+     return _Unwind_Reason_Code.FATAL_PHASE1_ERROR;
++  }
+ 
+   // check exceptionClass
+   //TODO: Treat foreign exceptions with more respect
+-  if((cast(char*)&exception_class)[0..8] != _d_exception_class)
++  auto wanted_ec = *cast(ulong*)_d_exception_class.ptr;
++  if(exception_class != wanted_ec)
++  {
++    debug(EH_personality) printf("exception class mismatch %p vs %p\n", exception_class, wanted_ec);
+     return _Unwind_Reason_Code.FATAL_PHASE1_ERROR;
++  }
+ 
+   // find call site table, action table and classinfo table
+   // Note: callsite and action tables do not contain static-length
+   // data and will be parsed as needed
+-  // Note: classinfo_table points past the end of the table
+-  ubyte* callsite_table;
+-  ubyte* action_table;
+-  ClassInfo* classinfo_table;
+-  _d_getLanguageSpecificTables(context, callsite_table, action_table, classinfo_table);
+-  if (!callsite_table)
++
++  Region region;
++
++  _d_getLanguageSpecificTables(context, region);
++
++  // workaround. this should not happen
++  if (!region.callsite_table)
++  {
++    debug(EH_personality) printf("callsite_table is null\n");
+     return _Unwind_Reason_Code.CONTINUE_UNWIND;
++  }
+ 
++  debug(EH_personality) printf("yay, checking\n");
++  debug(EH_personality) printf("region.start = %p\n", region.start);
++
+   /*
+     find landing pad and action table index belonging to ip by walking
+     the callsite_table
+   */
+-  ubyte* callsite_walker = callsite_table;
++  ubyte* callsite_walker = region.callsite_table;
++  debug(EH_personality) printf("callsite table at: %p\n", region.callsite_table);
++  debug(EH_personality) printf("action table at: %p\n", region.action_table);
++  debug(EH_personality) printf("rtti table at %p\n", region.classinfo_table);
+ 
+   // get the instruction pointer
+   // will be used to find the right entry in the callsite_table
+   // -1 because it will point past the last instruction
+-  ptrdiff_t ip = _Unwind_GetIP(context) - 1;
++  debug(EH_personality) printf("check1\n");
++  size_t ip = _Unwind_GetIP(context) - 1;
++  debug(EH_personality) printf("check2\n");
+ 
+-  // address block_start is relative to
+-  ptrdiff_t region_start = _Unwind_GetRegionStart(context);
+-
+   // table entries
+-  uint block_start_offset, block_size;
+-  ptrdiff_t landing_pad;
++  size_t landing_pad;
+   size_t action_offset;
+ 
+   while(true) {
+     // if we've gone through the list and found nothing...
+-    if(callsite_walker >= action_table)
++    if(callsite_walker >= region.action_table)
++    {
++      debug(EH_personality) printf("found nothing\n");
+       return _Unwind_Reason_Code.CONTINUE_UNWIND;
++    }
+ 
+-    block_start_offset = *cast(uint*)callsite_walker;
+-    block_size = *(cast(uint*)callsite_walker + 1);
+-    landing_pad = *(cast(uint*)callsite_walker + 2);
+-    if(landing_pad)
+-      landing_pad += region_start;
+-    callsite_walker = get_uleb128(callsite_walker + 3*uint.sizeof, action_offset);
++    size_t block_start, block_size;
+ 
+-    debug(EH_personality_verbose) printf("ip=%llx %d %d %llx\n", ip, block_start_offset, block_size, landing_pad);
++    callsite_walker = read_encoded(null, region.callSiteEnc, callsite_walker, block_start);
++    callsite_walker = read_encoded(null, region.callSiteEnc, callsite_walker, block_size);
++    callsite_walker = read_encoded(null, region.callSiteEnc, callsite_walker, landing_pad);
++    callsite_walker = get_uleb128(callsite_walker, action_offset);
+ 
++    debug(EH_personality) printf("*block start offset = %p\n", block_start);
++    debug(EH_personality) printf(" block size = %p\n", block_size);
++    debug(EH_personality) printf(" landing pad = %p\n", landing_pad);
++    debug(EH_personality) printf(" ip=%p %p %p %p\n", ip, block_start, block_size, landing_pad);
++
+     // since the list is sorted, as soon as we're past the ip
+     // there's no handler to be found
+-    if(ip < region_start + block_start_offset)
++    if(ip < region.start + block_start)
++    {
++      debug(EH_personality) printf("found nothing2\n");
+       return _Unwind_Reason_Code.CONTINUE_UNWIND;
++    }
+ 
++    if(landing_pad)
++      landing_pad += region.lpStart_base;
++
+     // if we've found our block, exit
+-    if(ip < region_start + block_start_offset + block_size)
++    if(ip < region.start + block_start + block_size)
+       break;
+   }
+ 
+-  debug(EH_personality) printf("Found correct landing pad and actionOffset %d\n", action_offset);
++  debug(EH_personality) printf("Found correct landing pad %p and actionOffset %p\n", landing_pad, action_offset);
+ 
+   // now we need the exception's classinfo to find a handler
+   // the exception_info is actually a member of a larger _d_exception struct
+   // the runtime allocated. get that now
+-  _d_exception* exception_struct = cast(_d_exception*)(cast(ubyte*)exception_info - _d_exception.unwind_info.offsetof);
++  _d_exception* exception_struct = cast(_d_exception*)(cast(ubyte*)exception_info - size_t.sizeof); //_d_exception.unwind_info.offsetof);
+ 
+   // if there's no action offset and no landing pad, continue unwinding
+   if(!action_offset && !landing_pad)
+     return _Unwind_Reason_Code.CONTINUE_UNWIND;
+ 
+   // if there's no action offset but a landing pad, this is a cleanup handler
+-  else if(!action_offset && landing_pad)
+-    return _d_eh_install_finally_context(actions, landing_pad, exception_struct, context);
++  else if(!action_offset && landing_pad != 0)
++  {
++    debug(EH_personality) printf("installing finally context\n");
++    return _d_eh_install_finally_context(actions, cast(ptrdiff_t)landing_pad, exception_struct, context);
++  }
+ 
+   /*
+    walk action table chain, comparing classinfos using _d_isbaseof
+   */
+-  ubyte* action_walker = action_table + action_offset - 1;
++  ubyte* action_walker = region.action_table + action_offset - 1;
+ 
+-  ptrdiff_t ti_offset, next_action_offset;
+   while(true) {
++    ptrdiff_t ti_offset, next_action_offset;
++
+     action_walker = get_sleb128(action_walker, ti_offset);
+     // it is intentional that we not modify action_walker here
+     // next_action_offset is from current action_walker position
+     get_sleb128(action_walker, next_action_offset);
+ 
+     // negative are 'filters' which we don't use
+-    if(!(ti_offset >= 0))
++    if(ti_offset < 0)
+       fatalerror("Filter actions are unsupported");
+ 
+     // zero means cleanup, which we require to be the last action
+     if(ti_offset == 0) {
+-      if(!(next_action_offset == 0))
++      if(next_action_offset != 0)
+         fatalerror("Cleanup action must be last in chain");
+-      return _d_eh_install_finally_context(actions, landing_pad, exception_struct, context);
++      return _d_eh_install_finally_context(actions, cast(ptrdiff_t)landing_pad, exception_struct, context);
+     }
+ 
+     // get classinfo for action and check if the one in the
+     // exception structure is a base
+-    ClassInfo catch_ci = *(classinfo_table - ti_offset);
+-    debug(EH_personality) printf("Comparing catch %s to exception %s\n", catch_ci.name.ptr, exception_struct.exception_object.classinfo.name.ptr);
+-    if(_d_isbaseof(exception_struct.exception_object.classinfo, catch_ci))
+-      return _d_eh_install_catch_context(actions, ti_offset, landing_pad, exception_struct, context);
++    size_t typeinfo;
++    auto filter = cast(size_t)ti_offset * size_of_encoded(region.ttypeEnc);
++    read_encoded_with_base(region.ttypeEnc, region.ttype_base, region.classinfo_table - filter, typeinfo);
+ 
++    debug(EH_personality)
++      printf("classinfo at %zx (enc %zx (size %zx) base %zx ptr %zx)\n", typeinfo, region.ttypeEnc, size_of_encoded(region.ttypeEnc), region.ttype_base, region.classinfo_table - filter);
++
++    auto catch_ci = *cast(ClassInfo*)&typeinfo;
++    if(_d_dynamic_cast(exception_struct.exception_object, catch_ci) !is null)
++      return _d_eh_install_catch_context(actions, ti_offset, cast(ptrdiff_t)landing_pad, exception_struct, context);
++
+     // we've walked through all actions and found nothing...
+     if(next_action_offset == 0)
+       return _Unwind_Reason_Code.CONTINUE_UNWIND;
+@@ -356,6 +562,7 @@
+   }
+ 
+   fatalerror("reached unreachable");
++
+   return _Unwind_Reason_Code.FATAL_PHASE2_ERROR;
+ }
+ 
+@@ -370,56 +577,78 @@
+   _Unwind_SetGR(context, eh_exception_regno, cast(ptrdiff_t)exception_struct);
+   _Unwind_SetGR(context, eh_selector_regno, 0);
+   _Unwind_SetIP(context, landing_pad);
++
+   return _Unwind_Reason_Code.INSTALL_CONTEXT;
+ }
+ 
+-private void _d_getLanguageSpecificTables(_Unwind_Context_Ptr context, ref ubyte* callsite, ref ubyte* action, ref ClassInfo* ci)
++private void _d_getLanguageSpecificTables(_Unwind_Context_Ptr context, out Region region)
+ {
+-  ubyte* data = cast(ubyte*)_Unwind_GetLanguageSpecificData(context);
++  auto data = cast(ubyte*)_Unwind_GetLanguageSpecificData(context);
++
++  // workaround. this should not be 0...
+   if (!data)
+   {
+-    callsite = null;
+-    action = null;
+-    ci = null;
+-    return;
++      //printf("language specific data is null\n");
++      return;
+   }
+ 
+-  //TODO: Do proper DWARF reading here
+-  if(*data++ != 0xff)
+-    fatalerror("DWARF header has unexpected format 1");
++  region.start = _Unwind_GetRegionStart(context);
+ 
+-  if(*data++ != 0x00)
+-    fatalerror("DWARF header has unexpected format 2");
+-  size_t cioffset;
+-  data = get_uleb128(data, cioffset);
+-  ci = cast(ClassInfo*)(data + cioffset);
++  // Read the C++-style LSDA: this is implementation-defined by GCC but LLVM
++  // outputs the same kind of table
+ 
+-  if(*data++ != 0x03)
+-    fatalerror("DWARF header has unexpected format 3");
+-  size_t callsitelength;
+-  data = get_uleb128(data, callsitelength);
+-  action = data + callsitelength;
++  // Get @LPStart: landing pad offsets are relative to it
++  auto lpStartEnc = *data++;
++  if (lpStartEnc == DW_EH_PE_omit)
++    region.lpStart_base = region.start;
++  else
++    data = read_encoded(context, lpStartEnc, data, region.lpStart_base);
+ 
+-  callsite = data;
++  // Get @TType: the offset to the handler and typeinfo
++  region.ttypeEnc = *data++;
++  if (region.ttypeEnc == DW_EH_PE_omit)
++    // Not sure about this one...
++    fatalerror("@TType must not be omitted from DWARF header");
++
++  size_t ciOffset;
++  data = get_uleb128(data, ciOffset);
++  region.classinfo_table = data + ciOffset;
++
++  region.ttype_base = base_of_encoded(context, region.ttypeEnc);
++
++  // Get encoding and length of the call site table, which precedes the action
++  // table.
++  region.callSiteEnc = *data++;
++  if (region.callSiteEnc == DW_EH_PE_omit)
++    fatalerror("Call site table encoding must not be omitted from DWARF header");
++
++  size_t callSiteLength;
++  region.callsite_table = get_uleb128(data, callSiteLength);
++  region.action_table = region.callsite_table + callSiteLength;
+ }
+ 
+ } // end of x86 Linux specific implementation
+ 
+-
+-extern(C) void _d_throw_exception(Object e)
++// called to throw object
++extern(C)
++void _d_throw_exception(Object e)
+ {
++    //printf("throwing %p, rtti = %p\n", e, **cast(ClassRTTI***)e);
+     if (e !is null)
+     {
+         _d_exception* exc_struct = new _d_exception;
+         exc_struct.unwind_info.exception_class = *cast(ulong*)_d_exception_class.ptr;
+         exc_struct.exception_object = e;
+         _Unwind_Reason_Code ret = _Unwind_RaiseException(&exc_struct.unwind_info);
+-        console("_Unwind_RaiseException failed with reason code: ")(ret)("\n");
++        printf("Error: returned %d from raise exception.\n", ret);
++        //console("_Unwind_RaiseException failed with reason code: ")(ret)("\n");
+     }
+     abort();
+ }
+ 
+-extern(C) void _d_eh_resume_unwind(_d_exception* exception_struct)
++// called to resume unwinding
++extern(C)
++void _d_eh_resume_unwind(void* exception_struct)
+ {
+-  _Unwind_Resume(&exception_struct.unwind_info);
++    _Unwind_Resume(&(cast(_d_exception*)exception_struct).unwind_info);
+ }