diff --git a/gen/arrays.cpp b/gen/arrays.cpp
index e0a1970f..bfd23b50 100644
--- a/gen/arrays.cpp
+++ b/gen/arrays.cpp
@@ -111,32 +111,6 @@ void DtoArrayAssign(LLValue* dst, LLValue* src)
 
 //////////////////////////////////////////////////////////////////////////////////////////
 
-void DtoArrayInit(LLValue* l, LLValue* r)
-{
-    Logger::println("DtoArrayInit");
-    LOG_SCOPE;
-
-    const LLPointerType* ptrty = isaPointer(l->getType());
-    const LLType* t = ptrty->getContainedType(0);
-    const LLArrayType* arrty = isaArray(t);
-    if (arrty)
-    {
-        LLValue* ptr = DtoGEPi(l,0,0);
-        LLValue* dim = DtoConstSize_t(arrty->getNumElements());
-        DtoArrayInit(ptr, dim, r);
-    }
-    else if (isaStruct(t))
-    {
-        LLValue* dim = DtoLoad(DtoGEPi(l, 0,0));
-        LLValue* ptr = DtoLoad(DtoGEPi(l, 0,1));
-        DtoArrayInit(ptr, dim, r);
-    }
-    else
-    assert(0);
-}
-
-//////////////////////////////////////////////////////////////////////////////////////////
-
 typedef const LLType* constLLVMTypeP;
 
 static size_t checkRectArrayInit(const LLType* pt, constLLVMTypeP& finalty)
@@ -151,40 +125,57 @@ static size_t checkRectArrayInit(const LLType* pt, constLLVMTypeP& finalty)
     return 0;
 }
 
-void DtoArrayInit(LLValue* ptr, LLValue* dim, LLValue* val)
+void DtoArrayInit(DValue* array, DValue* value)
 {
     Logger::println("DtoArrayInit");
     LOG_SCOPE;
 
-    Logger::cout() << "array: " << *ptr << " dim: " << *dim << " val: " << *val << '\n';
+    LLValue* dim = DtoArrayLen(array);
+    LLValue* ptr = DtoArrayPtr(array);
+    LLValue* val = value->getRVal();
+
+    Logger::cout() << "llvm values:\n" << " ptr: " << *ptr << " dim: " << *dim << " val: " << *val << '\n';
+
     const LLType* pt = ptr->getType()->getContainedType(0);
     const LLType* t = val->getType();
     const LLType* finalTy;
+
     size_t aggrsz = 0;
-    if (size_t arrsz = checkRectArrayInit(pt, finalTy)) {
+    Type* valtype = value->getType()->toBasetype();
+
+    // handle rectangular init
+    if (size_t arrsz = checkRectArrayInit(pt, finalTy))
+    {
         assert(finalTy == t);
         LLConstant* c = isaConstant(dim);
         assert(c);
         dim = llvm::ConstantExpr::getMul(c, DtoConstSize_t(arrsz));
         ptr = gIR->ir->CreateBitCast(ptr, getPtrToType(finalTy), "tmp");
     }
-    else if (isaStruct(t)) {
+    // handle null aggregate
+    else if (isaStruct(t))
+    {
         aggrsz = getABITypeSize(t);
         LLConstant* c = isaConstant(val);
-        if (c && c->isNullValue()) {
-            LLValue* nbytes;
-            if (aggrsz == 1)
-                nbytes = dim;
-            else
-                nbytes = gIR->ir->CreateMul(dim, DtoConstSize_t(aggrsz), "tmp");
-            DtoMemSetZero(ptr,nbytes);
-            return;
-        }
-        else {
-            ptr = gIR->ir->CreateBitCast(ptr, getPtrToType(LLType::Int8Ty), "tmp");
-        }
+        assert(c && c->isNullValue());
+        LLValue* nbytes;
+        if (aggrsz == 1)
+            nbytes = dim;
+        else
+            nbytes = gIR->ir->CreateMul(dim, DtoConstSize_t(aggrsz), "tmp");
+        DtoMemSetZero(ptr,nbytes);
+        return;
     }
-    else {
+    // handle general aggregate case
+    else if (DtoIsPassedByRef(valtype))
+    {
+        aggrsz = getABITypeSize(pt);
+        ptr = gIR->ir->CreateBitCast(ptr, getVoidPtrType(), "tmp");
+        val = gIR->ir->CreateBitCast(val, getVoidPtrType(), "tmp");
+    }
+    else
+    {
+        Logger::cout() << "no special handling" << '\n';
         assert(t == pt);
     }
 
diff --git a/gen/arrays.h b/gen/arrays.h
index fda7c6b2..c5e82fa4 100644
--- a/gen/arrays.h
+++ b/gen/arrays.h
@@ -14,8 +14,7 @@ LLConstant* DtoConstStaticArray(const LLType* t, LLConstant* c);
 void DtoArrayCopySlices(DSliceValue* dst, DSliceValue* src);
 void DtoArrayCopyToSlice(DSliceValue* dst, DValue* src);
 
-void DtoArrayInit(LLValue* l, LLValue* r);
-void DtoArrayInit(LLValue* ptr, LLValue* dim, LLValue* val);
+void DtoArrayInit(DValue* array, DValue* value);
 void DtoArrayAssign(LLValue* l, LLValue* r);
 void DtoSetArray(LLValue* arr, LLValue* dim, LLValue* ptr);
 void DtoSetArrayToNull(LLValue* v);
diff --git a/gen/classes.cpp b/gen/classes.cpp
index 4deda3cf..cd5f99b8 100644
--- a/gen/classes.cpp
+++ b/gen/classes.cpp
@@ -251,6 +251,7 @@ void DtoResolveClass(ClassDeclaration* cd)
     #else
         iri->vtblTy = isaStruct(itc->ir.vtblType->get());
     #endif
+        assert(iri->vtblTy);
 
         // set index
         iri->index = interIdx++;
diff --git a/gen/llvmhelpers.cpp b/gen/llvmhelpers.cpp
index b994c255..cf0bf0fd 100644
--- a/gen/llvmhelpers.cpp
+++ b/gen/llvmhelpers.cpp
@@ -345,7 +345,7 @@ void DtoAssign(DValue* lhs, DValue* rhs)
     Type* t2 = DtoDType(rhs->getType());
 
     if (t->ty == Tstruct) {
-        if (t2 != t) {
+        if (!t->equals(t2)) {
             // TODO: fix this, use 'rhs' for something
             DtoAggrZeroInit(lhs->getLVal());
         }
@@ -359,11 +359,8 @@ void DtoAssign(DValue* lhs, DValue* rhs)
             if (DSliceValue* s2 = rhs->isSlice()) {
                 DtoArrayCopySlices(s, s2);
             }
-            else if (t->next == t2) {
-                if (s->len)
-                    DtoArrayInit(s->ptr, s->len, rhs->getRVal());
-                else
-                    DtoArrayInit(s->ptr, rhs->getRVal());
+            else if (t->next->equals(t2)) {
+                DtoArrayInit(s, rhs);
             }
             else {
                 DtoArrayCopyToSlice(s, rhs);
@@ -388,7 +385,7 @@ void DtoAssign(DValue* lhs, DValue* rhs)
             DtoStaticArrayCopy(lhs->getLVal(), rhs->getRVal());
         }
         else {
-            DtoArrayInit(lhs->getLVal(), rhs->getRVal());
+            DtoArrayInit(lhs, rhs);
         }
     }
     else if (t->ty == Tdelegate) {
diff --git a/gen/toir.cpp b/gen/toir.cpp
index 2ff59d36..bb153783 100644
--- a/gen/toir.cpp
+++ b/gen/toir.cpp
@@ -2702,18 +2702,20 @@ DValue* StructLiteralExp::toElem(IRState* p)
     LLValue* mem = 0;
     bool isinplace = true;
 
+    // already has memory (r-value of assignment)
+    IRExp* topexp = p->topexp();
+    if (topexp && topexp->e2 == this && !topexp->v->isSlice())
+    {
+        assert(topexp->e2 == this);
+        sptr = topexp->v->getLVal();
+    }
     // temporary struct literal
-    if (!p->topexp() || p->topexp()->e2 != this)
+    else
     {
         sptr = new llvm::AllocaInst(llt,"tmpstructliteral",p->topallocapoint());
         isinplace = false;
     }
-    // already has memory
-    else
-    {
-        assert(p->topexp()->e2 == this);
-        sptr = p->topexp()->v->getLVal();
-    }
+
 
     // num elements in literal
     unsigned n = elements->dim;
diff --git a/llvmdc.kdevelop.filelist b/llvmdc.kdevelop.filelist
index 72dcdc82..8cf0303d 100644
--- a/llvmdc.kdevelop.filelist
+++ b/llvmdc.kdevelop.filelist
@@ -51,7 +51,6 @@ dmd/inline.c
 dmd/interpret.c
 dmd/lexer.c
 dmd/lexer.h
-dmd/link.c
 dmd/lstring.c
 dmd/lstring.h
 dmd/macro.c
diff --git a/premake.lua b/premake.lua
index a0ea5ae5..4062d489 100644
--- a/premake.lua
+++ b/premake.lua
@@ -1,11 +1,21 @@
 project.name = llvmdc
 
 -- options
+
+-- we always make vtables opaque, it simply kills performance...
 OPAQUE_VTBLS = 1
+
+-- use of boehm gc
 if OS == "windows" then
-	USE_BOEHM_GC = 0
+    USE_BOEHM_GC = 0
 else
-	USE_BOEHM_GC = 1
+    addoption("no-boehm", "Disable use of the Boehm GC")
+
+    if options["no-boehm"] then
+        USE_BOEHM_GC = 0
+    else
+        USE_BOEHM_GC = 1
+    end
 end
 
 -- idgen
diff --git a/tango/lib/compiler/llvmdc/arrays.d b/tango/lib/compiler/llvmdc/arrays.d
index 178f302f..198b60bd 100644
--- a/tango/lib/compiler/llvmdc/arrays.d
+++ b/tango/lib/compiler/llvmdc/arrays.d
@@ -97,13 +97,3 @@ size_t _d_array_cast_len(size_t len, size_t elemsz, size_t newelemsz)
     }
     return (len*elemsz)/newelemsz;
 }
-
-// creating args for main
-void _d_main_args(uint n, char** args, ref char[][] res)
-{
-    assert(res.length == n);
-    foreach(i,v; args[0..n])
-    {
-        res[i] = v[0 .. strlen(v)];
-    }
-}
diff --git a/tangotests/arrays4.d b/tangotests/arrays4.d
new file mode 100644
index 00000000..a171bf13
--- /dev/null
+++ b/tangotests/arrays4.d
@@ -0,0 +1,27 @@
+module tangotests.arrays4;
+
+struct Str { int a,b; }
+void main() {
+    Str[] arr = new Str[64];
+
+    auto tmp = Str(1,2);
+    arr[] = tmp;
+    assert(arr[0].a == 1);
+    assert(arr[0].b == 2);
+    assert(arr[13].a == 1);
+    assert(arr[13].b == 2);
+    assert(arr[42].a == 1);
+    assert(arr[42].b == 2);
+    assert(arr[63].a == 1);
+    assert(arr[63].b == 2);
+
+    arr[] = Str(3,4);
+    assert(arr[0].a == 3);
+    assert(arr[0].b == 4);
+    assert(arr[13].a == 3);
+    assert(arr[13].b == 4);
+    assert(arr[42].a == 3);
+    assert(arr[42].b == 4);
+    assert(arr[63].a == 3);
+    assert(arr[63].b == 4);
+}
diff --git a/test/vararg4.d b/test/vararg4.d
index 6c3210c2..952cc758 100644
--- a/test/vararg4.d
+++ b/test/vararg4.d
@@ -1,5 +1,6 @@
 module vararg4;
 import tango.core.Vararg;
+extern(C) int printf(char*, ...);
 
 void vafunc(...)
 {
diff --git a/test/vararg5.d b/test/vararg5.d
index 9f74e34b..f6d817b3 100644
--- a/test/vararg5.d
+++ b/test/vararg5.d
@@ -1,5 +1,6 @@
 module vararg5;
 import tango.core.Vararg;
+extern(C) int printf(char*, ...);
 void func(...)
 {
     char[] str = va_arg!(char[])(_argptr);