__attribute__((sentinel)) is first available in GCC 4.
[cparser] / ast2firm.c
index 8745247..7db20e2 100644 (file)
@@ -30,6 +30,7 @@
 
 #include "adt/error.h"
 #include "adt/array.h"
+#include "symbol_t.h"
 #include "token_t.h"
 #include "type_t.h"
 #include "ast_t.h"
 
 #define MAGIC_DEFAULT_PN_NUMBER            (long) -314159265
 
+/* some idents needed for name mangling */
+static ident *id_underscore;
+static ident *id_imp;
+
 static ir_type *ir_type_const_char;
 static ir_type *ir_type_wchar_t;
 static ir_type *ir_type_void;
@@ -58,6 +63,7 @@ static ir_node **imature_blocks;
 
 static const declaration_t *current_function_decl;
 static ir_node             *current_function_name;
+static ir_node             *current_funcsig;
 
 static struct obstack asm_obst;
 
@@ -80,7 +86,7 @@ ir_node *uninitialized_local_var(ir_graph *irg, ir_mode *mode, int pos)
 {
        const declaration_t *declaration = get_irg_loc_description(irg, pos);
 
-       warningf(declaration->source_position,
+       warningf(&declaration->source_position,
                 "variable '%#T' might be used uninitialized",
                 declaration->type, declaration->symbol);
        return new_r_Unknown(irg, mode);
@@ -110,207 +116,79 @@ static dbg_info *get_dbg_info(const source_position_t *pos)
        return (dbg_info*) pos;
 }
 
-static unsigned unique_id = 0;
-
-static ident *unique_ident(const char *tag)
-{
-       char buf[256];
-
-       snprintf(buf, sizeof(buf), "%s.%u", tag, unique_id);
-       unique_id++;
-       return new_id_from_str(buf);
-}
+static ir_mode *_atomic_modes[ATOMIC_TYPE_LAST+1];
 
-/**
- * Return the signed integer mode of size bytes.
- *
- * @param size   the size
- */
-static ir_mode *get_smode(unsigned size)
-{
-       static ir_mode *s_modes[16 + 1] = {0, };
-       ir_mode *res;
-
-       if (size <= 0 || size > 16)
-               return NULL;
-
-       res = s_modes[size];
-       if (res == NULL) {
-               unsigned bits;
-       char name[32];
+static ir_mode *mode_int, *mode_uint;
 
-       bits = size * 8;
-       snprintf(name, sizeof(name), "i%u", bits);
-       res = new_ir_mode(name, irms_int_number, bits, 1, irma_twos_complement,
-                                       bits <= machine_size ? machine_size : bits );
+static ir_node *expression_to_firm(const expression_t *expression);
+static inline ir_mode *get_ir_mode(type_t *type);
 
-               s_modes[size] = res;
+static ir_mode *init_atomic_ir_mode(atomic_type_kind_t kind)
+{
+       unsigned flags = get_atomic_type_flags(kind);
+       unsigned size  = get_atomic_type_size(kind);
+       if( (flags & (ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_FLOAT))
+                       && !(flags & ATOMIC_TYPE_FLAG_COMPLEX)) {
+               char            name[64];
+               mode_sort       sort;
+               unsigned        bit_size     = size * 8;
+               bool            is_signed    = (flags & ATOMIC_TYPE_FLAG_SIGNED) != 0;
+               mode_arithmetic arithmetic;
+               unsigned        modulo_shift;
+
+               if(flags & ATOMIC_TYPE_FLAG_INTEGER) {
+                       assert(! (flags & ATOMIC_TYPE_FLAG_FLOAT));
+                       snprintf(name, sizeof(name), "i%s%d", is_signed?"":"u", bit_size);
+                       sort         = irms_int_number;
+                       arithmetic   = irma_twos_complement;
+                       modulo_shift = bit_size < machine_size ? machine_size : bit_size;
+               } else {
+                       assert(flags & ATOMIC_TYPE_FLAG_FLOAT);
+                       snprintf(name, sizeof(name), "f%d", bit_size);
+                       sort         = irms_float_number;
+                       arithmetic   = irma_ieee754;
+                       modulo_shift = 0;
+               }
+               return new_ir_mode(name, sort, bit_size, is_signed, arithmetic,
+                                  modulo_shift);
        }
-       return res;
-}
-
-/**
- * Return the unsigned integer mode of size bytes.
- *
- * @param size  the size
- */
-static ir_mode *get_umode(unsigned size)
-{
-       static ir_mode *u_modes[16 + 1] = {0, };
-       ir_mode *res;
-
-       if (size <= 0 || size > 16)
-               return NULL;
-
-       res = u_modes[size];
-       if (res == NULL) {
-               unsigned bits;
-               char name[32];
-
-               bits = size * 8;
-               snprintf(name, sizeof(name), "u%u", bits);
-               res = new_ir_mode(name, irms_int_number, bits, 0, irma_twos_complement,
-                                               bits <= machine_size ? machine_size : bits );
 
-               u_modes[size] = res;
-       }
-       return res;
+       return NULL;
 }
 
 /**
- * Return the pointer mode of size bytes.
- *
- * @param size  the size
+ * Initialises the atomic modes depending on the machine size.
  */
-static ir_mode *get_ptrmode(unsigned size, char *name)
+static void init_atomic_modes(void)
 {
-       static ir_mode *p_modes[16 + 1] = {0, };
-       ir_mode *res;
-
-       if (size <= 0 || size > 16)
-               return NULL;
-
-       res = p_modes[size];
-       if (res == NULL) {
-               unsigned bits;
-               char buf[32];
-
-               bits = size * 8;
-               if (name == NULL) {
-                       snprintf(buf, sizeof(buf), "p%u", bits);
-                       name = buf;
-               }
-               res = new_ir_mode(name, irms_reference, bits, 0, irma_twos_complement,
-                                               bits <= machine_size ? machine_size : bits);
-
-               p_modes[size] = res;
-
-               set_reference_mode_signed_eq(res, get_smode(size));
-               set_reference_mode_unsigned_eq(res, get_umode(size));
+       for(int i = 0; i <= ATOMIC_TYPE_LAST; ++i) {
+               _atomic_modes[i] = init_atomic_ir_mode((atomic_type_kind_t) i);
        }
-       return res;
-}
-
-static ir_mode *_atomic_modes[ATOMIC_TYPE_LAST];
-
-static ir_mode *mode_int, *mode_uint;
-
-static ir_node *expression_to_firm(const expression_t *expression);
-static inline ir_mode *get_ir_mode(type_t *type);
-
-/**
- * Initialises the atomic modes depending on the machine size.
- */
-static void init_atomic_modes(void) {
-       unsigned int_size   = machine_size < 32 ? 2 : 4;
-       unsigned long_size  = machine_size < 64 ? 4 : 8;
-       unsigned llong_size = machine_size < 32 ? 4 : 8;
-
-       /* firm has no real void... */
-       _atomic_modes[ATOMIC_TYPE_VOID]        = mode_T;
-       _atomic_modes[ATOMIC_TYPE_CHAR]        = char_is_signed ? get_smode(1) : get_umode(1);
-       _atomic_modes[ATOMIC_TYPE_SCHAR]       = get_smode(1);
-       _atomic_modes[ATOMIC_TYPE_UCHAR]       = get_umode(1);
-       _atomic_modes[ATOMIC_TYPE_SHORT]       = get_smode(2);
-       _atomic_modes[ATOMIC_TYPE_USHORT]      = get_umode(2);
-       _atomic_modes[ATOMIC_TYPE_INT]         = get_smode(int_size);
-       _atomic_modes[ATOMIC_TYPE_UINT]        = get_umode(int_size);
-       _atomic_modes[ATOMIC_TYPE_LONG]        = get_smode(long_size);
-       _atomic_modes[ATOMIC_TYPE_ULONG]       = get_umode(long_size);
-       _atomic_modes[ATOMIC_TYPE_LONGLONG]    = get_smode(llong_size);
-       _atomic_modes[ATOMIC_TYPE_ULONGLONG]   = get_umode(llong_size);
-       _atomic_modes[ATOMIC_TYPE_FLOAT]       = mode_F;
-       _atomic_modes[ATOMIC_TYPE_DOUBLE]      = mode_D;
-       _atomic_modes[ATOMIC_TYPE_LONG_DOUBLE] = mode_E;
-       _atomic_modes[ATOMIC_TYPE_BOOL]        = get_umode(int_size);
-
-#ifdef PROVIDE_COMPLEX
-       _atomic_modes[ATOMIC_TYPE_BOOL]                  = _atomic_modes[ATOMIC_TYPE_INT];
-       _atomic_modes[ATOMIC_TYPE_FLOAT_IMAGINARY]       = _atomic_modes[ATOMIC_TYPE_FLOAT];
-       _atomic_modes[ATOMIC_TYPE_DOUBLE_IMAGINARY]      = _atomic_modes[ATOMIC_TYPE_DOUBLE];
-       _atomic_modes[ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY] = _atomic_modes[ATOMIC_TYPE_LONG_DOUBLE];
-#endif
-
-       /* Hmm, pointers should be machine size */
-       set_modeP_data(get_ptrmode(machine_size >> 3, NULL));
-       set_modeP_code(get_ptrmode(machine_size >> 3, NULL));
-
        mode_int  = _atomic_modes[ATOMIC_TYPE_INT];
        mode_uint = _atomic_modes[ATOMIC_TYPE_UINT];
-}
 
-static ir_mode *get_atomic_mode(const atomic_type_t* atomic_type)
-{
-       ir_mode *res = NULL;
-       if ((unsigned)atomic_type->akind < (unsigned)ATOMIC_TYPE_LAST)
-               res = _atomic_modes[(unsigned)atomic_type->akind];
-       if (res == NULL)
-               panic("Encountered unknown atomic type");
-       return res;
-}
-
-static unsigned get_atomic_type_size(const atomic_type_t *type)
-{
-       switch(type->akind) {
-       case ATOMIC_TYPE_CHAR:
-       case ATOMIC_TYPE_SCHAR:
-       case ATOMIC_TYPE_UCHAR:
-               return 1;
-
-       case ATOMIC_TYPE_SHORT:
-       case ATOMIC_TYPE_USHORT:
-               return 2;
-
-       case ATOMIC_TYPE_BOOL:
-       case ATOMIC_TYPE_INT:
-       case ATOMIC_TYPE_UINT:
-               return machine_size >> 3;
-
-       case ATOMIC_TYPE_LONG:
-       case ATOMIC_TYPE_ULONG:
-               return machine_size > 16 ? machine_size >> 3 : 4;
+       /* there's no real void type in firm */
+       _atomic_modes[ATOMIC_TYPE_VOID] = mode_int;
 
-       case ATOMIC_TYPE_LONGLONG:
-       case ATOMIC_TYPE_ULONGLONG:
-               return machine_size > 16 ? 8 : 4;
+       /* initialize pointer modes */
+       char            name[64];
+       mode_sort       sort         = irms_reference;
+       unsigned        bit_size     = machine_size;
+       bool            is_signed    = 0;
+       mode_arithmetic arithmetic   = irma_twos_complement;
+       unsigned        modulo_shift
+               = bit_size < machine_size ? machine_size : bit_size;
 
-       case ATOMIC_TYPE_FLOAT:
-               return 4;
+       snprintf(name, sizeof(name), "p%d", machine_size);
+       ir_mode *ptr_mode = new_ir_mode(name, sort, bit_size, is_signed, arithmetic,
+                                       modulo_shift);
 
-       case ATOMIC_TYPE_DOUBLE:
-               return 8;
+       set_reference_mode_signed_eq(ptr_mode, _atomic_modes[get_intptr_kind()]);
+       set_reference_mode_unsigned_eq(ptr_mode, _atomic_modes[get_uintptr_kind()]);
 
-       case ATOMIC_TYPE_LONG_DOUBLE:
-               return 12;
-
-       case ATOMIC_TYPE_VOID:
-               return 1;
-
-       case ATOMIC_TYPE_INVALID:
-       case ATOMIC_TYPE_LAST:
-               break;
-       }
-       panic("Trying to determine size of invalid atomic type");
+       /* Hmm, pointers should be machine size */
+       set_modeP_data(ptr_mode);
+       set_modeP_code(ptr_mode);
 }
 
 static unsigned get_compound_type_size(compound_type_t *type)
@@ -335,7 +213,11 @@ static unsigned get_type_size_const(type_t *type)
        case TYPE_ERROR:
                panic("error type occured");
        case TYPE_ATOMIC:
-               return get_atomic_type_size(&type->atomic);
+               return get_atomic_type_size(type->atomic.akind);
+       case TYPE_COMPLEX:
+               return 2 * get_atomic_type_size(type->complex.akind);
+       case TYPE_IMAGINARY:
+               return get_atomic_type_size(type->imaginary.akind);
        case TYPE_ENUM:
                return get_mode_size_bytes(mode_int);
        case TYPE_COMPOUND_UNION:
@@ -396,22 +278,51 @@ static unsigned count_parameters(const function_type_t *function_type)
        return count;
 }
 
-
+/**
+ * Creates a Firm type for an atomic type
+ */
 static ir_type *create_atomic_type(const atomic_type_t *type)
 {
-       dbg_info *dbgi  = get_dbg_info(&type->type.source_position);
-       ir_mode *mode   = get_atomic_mode(type);
-       ident   *id     = get_mode_ident(mode);
-       ir_type *irtype = new_d_type_primitive(id, mode, dbgi);
+       dbg_info           *dbgi      = get_dbg_info(&type->base.source_position);
+       atomic_type_kind_t  kind      = type->akind;
+       ir_mode            *mode      = _atomic_modes[kind];
+       ident              *id        = get_mode_ident(mode);
+       ir_type            *irtype    = new_d_type_primitive(id, mode, dbgi);
 
-       /* TODO: this is x86 specific, we should fiddle this into
-        * lang_features.h somehow... */
-       if(type->akind == ATOMIC_TYPE_LONG_DOUBLE
-                       || type->akind == ATOMIC_TYPE_DOUBLE
-                       || type->akind == ATOMIC_TYPE_LONGLONG
-                       || type->akind == ATOMIC_TYPE_ULONGLONG) {
-               set_type_alignment_bytes(irtype, 4);
-       }
+       set_type_alignment_bytes(irtype, type->base.alignment);
+
+       return irtype;
+}
+
+/**
+ * Creates a Firm type for a complex type
+ */
+static ir_type *create_complex_type(const complex_type_t *type)
+{
+       dbg_info           *dbgi      = get_dbg_info(&type->base.source_position);
+       atomic_type_kind_t  kind      = type->akind;
+       ir_mode            *mode      = _atomic_modes[kind];
+       ident              *id        = get_mode_ident(mode);
+
+       (void) id;
+       (void) dbgi;
+
+       /* FIXME: finish the array */
+       return NULL;
+}
+
+/**
+ * Creates a Firm type for an imaginary type
+ */
+static ir_type *create_imaginary_type(const imaginary_type_t *type)
+{
+       dbg_info           *dbgi      = get_dbg_info(&type->base.source_position);
+       atomic_type_kind_t  kind      = type->akind;
+       ir_mode            *mode      = _atomic_modes[kind];
+       ident              *id        = get_mode_ident(mode);
+       ir_type            *irtype    = new_d_type_primitive(id, mode, dbgi);
+
+       set_type_alignment_bytes(irtype, type->base.alignment);
 
        return irtype;
 }
@@ -420,10 +331,10 @@ static ir_type *create_method_type(const function_type_t *function_type)
 {
        type_t  *return_type  = function_type->return_type;
 
-       ident   *id           = unique_ident("functiontype");
+       ident   *id           = id_unique("functiontype.%u");
        int      n_parameters = count_parameters(function_type);
        int      n_results    = return_type == type_void ? 0 : 1;
-       dbg_info *dbgi        = get_dbg_info(&function_type->type.source_position);
+       dbg_info *dbgi        = get_dbg_info(&function_type->base.source_position);
        ir_type *irtype       = new_d_type_method(id, n_parameters, n_results, dbgi);
 
        if(return_type != type_void) {
@@ -454,10 +365,10 @@ static ir_type *create_pointer_type(pointer_type_t *type)
         * again (might be a struct). We therefore first create a void* pointer
         * and then set the real points_to type
         */
-       dbg_info *dbgi   = get_dbg_info(&type->type.source_position);
-       ir_type *ir_type = new_d_type_pointer(unique_ident("pointer"),
+       dbg_info *dbgi    = get_dbg_info(&type->base.source_position);
+       ir_type  *ir_type = new_d_type_pointer(id_unique("pointer.%u"),
                                            ir_type_void, mode_P_data, dbgi);
-       type->type.firm_type  = ir_type;
+       type->base.firm_type  = ir_type;
 
        ir_points_to = get_ir_type(points_to);
        set_pointer_points_to_type(ir_type, ir_points_to);
@@ -470,8 +381,8 @@ static ir_type *create_array_type(array_type_t *type)
        type_t  *element_type    = type->element_type;
        ir_type *ir_element_type = get_ir_type(element_type);
 
-       ident    *id      = unique_ident("array");
-       dbg_info *dbgi    = get_dbg_info(&type->type.source_position);
+       ident    *id      = id_unique("array.%u");
+       dbg_info *dbgi    = get_dbg_info(&type->base.source_position);
        ir_type  *ir_type = new_d_type_array(id, 1, ir_element_type, dbgi);
 
        const int align = get_type_alignment_bytes(ir_element_type);
@@ -568,7 +479,7 @@ static ir_type *get_unsigned_int_type_for_bit_size(ir_type *base_tp,
 
 static ir_type *create_bitfield_type(bitfield_type_t *const type)
 {
-       type_t *base = skip_typeref(type->base);
+       type_t *base = skip_typeref(type->base_type);
        assert(base->kind == TYPE_ATOMIC);
        ir_type *irbase = get_ir_type(base);
 
@@ -602,16 +513,16 @@ static ir_type *create_struct_type(compound_type_t *type, ir_type *irtype,
                symbol_t *symbol = declaration->symbol;
                ident    *id;
                if(symbol != NULL) {
-                       id = unique_ident(symbol->string);
+                       id = new_id_from_str(symbol->string);
                } else {
-                       id = unique_ident("__anonymous_struct");
+                       id = id_unique("__anonymous_struct.%u");
                }
-               dbg_info *dbgi  = get_dbg_info(&type->type.source_position);
+               dbg_info *dbgi  = get_dbg_info(&type->base.source_position);
 
                irtype = new_d_type_struct(id, dbgi);
 
                declaration->v.irtype = irtype;
-               type->type.firm_type  = irtype;
+               type->base.firm_type  = irtype;
        } else {
                offset    = *outer_offset;
                align_all = *outer_align;
@@ -640,12 +551,12 @@ static ir_type *create_struct_type(compound_type_t *type, ir_type *irtype,
                        } else {
                                assert(entry_type->kind == TYPE_BITFIELD);
                        }
-                       ident = unique_ident("anon");
+                       ident = id_unique("anon.%u");
                }
 
                ir_type *base_irtype;
                if(entry_type->kind == TYPE_BITFIELD) {
-                       base_irtype = get_ir_type(entry_type->bitfield.base);
+                       base_irtype = get_ir_type(entry_type->bitfield.base_type);
                } else {
                        base_irtype = get_ir_type(entry_type);
                }
@@ -737,22 +648,22 @@ static ir_type *create_union_type(compound_type_t *type, ir_type *irtype,
                symbol_t      *symbol      = declaration->symbol;
                ident         *id;
                if(symbol != NULL) {
-                       id = unique_ident(symbol->string);
+                       id = new_id_from_str(symbol->string);
                } else {
-                       id = unique_ident("__anonymous_union");
+                       id = id_unique("__anonymous_union.%u");
                }
-               dbg_info *dbgi = get_dbg_info(&type->type.source_position);
+               dbg_info *dbgi = get_dbg_info(&type->base.source_position);
 
                irtype = new_d_type_union(id, dbgi);
 
                declaration->v.irtype = irtype;
-               type->type.firm_type  = irtype;
+               type->base.firm_type  = irtype;
        } else {
                offset    = *outer_offset;
                align_all = *outer_align;
        }
 
-       type->type.firm_type = irtype;
+       type->base.firm_type = irtype;
 
        declaration_t *entry = declaration->scope.declarations;
        for( ; entry != NULL; entry = entry->next) {
@@ -783,7 +694,7 @@ static ir_type *create_union_type(compound_type_t *type, ir_type *irtype,
                        if(entry_size > size) {
                                size = entry_size;
                        }
-                       ident = unique_ident("anon");
+                       ident = id_unique("anon.%u");
                }
 
                size_t entry_size      = get_type_size_bytes(entry_ir_type);
@@ -835,7 +746,7 @@ static ir_type *create_union_type(compound_type_t *type, ir_type *irtype,
 
 static ir_type *create_enum_type(enum_type_t *const type)
 {
-       type->type.firm_type = ir_type_int;
+       type->base.firm_type = ir_type_int;
 
        ir_mode *const mode    = mode_int;
        tarval  *const one     = get_mode_one(mode);
@@ -877,10 +788,16 @@ static ir_type *get_ir_type(type_t *type)
        ir_type *firm_type = NULL;
        switch(type->kind) {
        case TYPE_ERROR:
-               panic("error type occured");
+               panic("error type occurred");
        case TYPE_ATOMIC:
                firm_type = create_atomic_type(&type->atomic);
                break;
+       case TYPE_COMPLEX:
+               firm_type = create_complex_type(&type->complex);
+               break;
+       case TYPE_IMAGINARY:
+               firm_type = create_imaginary_type(&type->imaginary);
+               break;
        case TYPE_FUNCTION:
                firm_type = create_method_type(&type->function);
                break;
@@ -1015,6 +932,61 @@ static const struct {
        { rts_strncmp,    1, "strncmp",      3, _C89 }
 };
 
+/**
+ * Mangles an entity linker (ld) name for win32 usage.
+ *
+ * @param ent          the entity to be mangled
+ * @param declaration  the declaration
+ */
+static ident *create_ld_ident_win32(ir_entity *ent, declaration_t *declaration)
+{
+       ident *id;
+
+       if (is_Method_type(get_entity_type(ent)))
+               id = decorate_win32_c_fkt(ent, get_entity_ident(ent));
+       else {
+               /* always add an underscore in win32 */
+               id = mangle(id_underscore, get_entity_ident(ent));
+       }
+
+       decl_modifiers_t decl_modifiers = declaration->decl_modifiers;
+       if (decl_modifiers & DM_DLLIMPORT) {
+               /* add prefix for imported symbols */
+               id = mangle(id_imp, id);
+       }
+       return id;
+}
+
+/**
+ * Mangles an entity linker (ld) name for Linux ELF usage.
+ *
+ * @param ent          the entity to be mangled
+ * @param declaration  the declaration
+ */
+static ident *create_ld_ident_linux_elf(ir_entity *entity,
+                                        declaration_t *declaration)
+{
+       (void) declaration;
+       return get_entity_ident(entity);
+}
+
+/**
+ * Mangles an entity linker (ld) name for Mach-O usage.
+ *
+ * @param ent          the entity to be mangled
+ * @param declaration  the declaration
+ */
+static ident *create_ld_ident_macho(ir_entity *ent, declaration_t *declaration)
+{
+       (void) declaration;
+       ident *id = mangle(id_underscore, get_entity_ident(ent));
+       return id;
+}
+
+typedef ident* (*create_ld_ident_func)(ir_entity *entity,
+                                       declaration_t *declaration);
+create_ld_ident_func  create_ld_ident = create_ld_ident_linux_elf;
+
 static ir_entity* get_function_entity(declaration_t *declaration)
 {
        if(declaration->declaration_kind == DECLARATION_KIND_FUNCTION)
@@ -1030,7 +1002,7 @@ static ir_entity* get_function_entity(declaration_t *declaration)
 
        dbg_info  *const dbgi   = get_dbg_info(&declaration->source_position);
        ir_entity *const entity = new_d_entity(global_type, id, ir_type_method, dbgi);
-       set_entity_ld_ident(entity, id);
+       set_entity_ld_ident(entity, create_ld_ident(entity, declaration));
        if(declaration->storage_class == STORAGE_CLASS_STATIC
                        || declaration->is_inline) {
                set_entity_visibility(entity, visibility_local);
@@ -1094,14 +1066,14 @@ static ir_node *const_to_firm(const const_expression_t *cnst)
        return new_d_Const(dbgi, mode, tv);
 }
 
-static ir_node *char_const_to_firm(const const_expression_t *cnst)
+static ir_node *character_constant_to_firm(const const_expression_t *cnst)
 {
        dbg_info *dbgi = get_dbg_info(&cnst->base.source_position);
        ir_mode  *mode = get_ir_mode(cnst->base.type);
 
        long long int v = 0;
-       for (size_t i = 0; i < cnst->v.chars.size; ++i) {
-               v = (v << 8) | ((unsigned char)cnst->v.chars.begin[i]);
+       for (size_t i = 0; i < cnst->v.character.size; ++i) {
+               v = (v << 8) | ((unsigned char)cnst->v.character.begin[i]);
        }
        char    buf[128];
        size_t  len = snprintf(buf, sizeof(buf), "%lld", v);
@@ -1110,8 +1082,22 @@ static ir_node *char_const_to_firm(const const_expression_t *cnst)
        return new_d_Const(dbgi, mode, tv);
 }
 
+static ir_node *wide_character_constant_to_firm(const const_expression_t *cnst)
+{
+       dbg_info *dbgi = get_dbg_info(&cnst->base.source_position);
+       ir_mode  *mode = get_ir_mode(cnst->base.type);
+
+       long long int v = cnst->v.wide_character.begin[0];
+
+       char    buf[128];
+       size_t  len = snprintf(buf, sizeof(buf), "%lld", v);
+       tarval *tv = new_tarval_from_str(buf, len, mode);
+
+       return new_d_Const(dbgi, mode, tv);
+}
+
 static ir_node *create_symconst(dbg_info *dbgi, ir_mode *mode,
-                                ir_entity *entity)
+                              ir_entity *entity)
 {
        assert(entity != NULL);
        union symconst_symbol sym;
@@ -1125,10 +1111,10 @@ static ir_node *string_to_firm(const source_position_t *const src_pos,
 {
        ir_type  *const global_type = get_glob_type();
        dbg_info *const dbgi        = get_dbg_info(src_pos);
-       ir_type  *const type        = new_d_type_array(unique_ident("strtype"), 1,
+       ir_type  *const type        = new_d_type_array(id_unique("strtype.%u"), 1,
                                                       ir_type_const_char, dbgi);
 
-       ident     *const id     = unique_ident(id_prefix);
+       ident     *const id     = id_unique(id_prefix);
        ir_entity *const entity = new_d_entity(global_type, id, type, dbgi);
        set_entity_ld_ident(entity, id);
        set_entity_variability(entity, variability_constant);
@@ -1159,7 +1145,7 @@ static ir_node *string_to_firm(const source_position_t *const src_pos,
 static ir_node *string_literal_to_firm(
                const string_literal_expression_t* literal)
 {
-       return string_to_firm(&literal->base.source_position, "Lstr",
+       return string_to_firm(&literal->base.source_position, "Lstr.%u",
                              &literal->value);
 }
 
@@ -1169,10 +1155,10 @@ static ir_node *wide_string_literal_to_firm(
        ir_type *const global_type = get_glob_type();
        ir_type *const elem_type   = ir_type_wchar_t;
        dbg_info *const dbgi       = get_dbg_info(&literal->base.source_position);
-       ir_type *const type        = new_d_type_array(unique_ident("strtype"), 1,
+       ir_type *const type        = new_d_type_array(id_unique("strtype.%u"), 1,
                                                    elem_type, dbgi);
 
-       ident     *const id     = unique_ident("Lstr");
+       ident     *const id     = id_unique("Lstr.%u");
        ir_entity *const entity = new_d_entity(global_type, id, type, dbgi);
        set_entity_ld_ident(entity, id);
        set_entity_variability(entity, variability_constant);
@@ -1199,12 +1185,13 @@ static ir_node *wide_string_literal_to_firm(
        return create_symconst(dbgi, mode_P_data, entity);
 }
 
-static ir_node *deref_address(ir_type *const irtype, ir_node *const addr,
+static ir_node *deref_address(type_t *const type, ir_node *const addr,
                               dbg_info *const dbgi)
 {
-       if (is_compound_type(irtype) ||
-                       is_Method_type(irtype)   ||
-                       is_Array_type(irtype)) {
+       ir_type *irtype = get_ir_type(type);
+       if (is_compound_type(irtype)
+                       || is_Method_type(irtype)
+                       || is_Array_type(irtype)) {
                return addr;
        }
 
@@ -1213,6 +1200,11 @@ static ir_node *deref_address(ir_type *const irtype, ir_node *const addr,
        ir_node *const load     = new_d_Load(dbgi, memory, addr, mode);
        ir_node *const load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
        ir_node *const load_res = new_d_Proj(dbgi, load, mode,   pn_Load_res);
+
+       if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
+               set_Load_volatility(load, volatility_is_volatile);
+       }
+
        set_store(load_mem);
        return load_res;
 }
@@ -1300,16 +1292,14 @@ static ir_node *reference_expression_to_firm(const reference_expression_t *ref)
        }
        case DECLARATION_KIND_GLOBAL_VARIABLE: {
                ir_node *const addr   = get_global_var_address(dbgi, declaration);
-               ir_type *const irtype = get_entity_type(declaration->v.entity);
-               return deref_address(irtype, addr, dbgi);
+               return deref_address(declaration->type, addr, dbgi);
        }
 
        case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY: {
                ir_entity *entity = declaration->v.entity;
                ir_node   *frame  = get_local_frame(entity);
                ir_node   *sel    = new_d_simpleSel(dbgi, new_NoMem(), frame, entity);
-               ir_type   *irtype = get_entity_type(entity);
-               return deref_address(irtype, sel, dbgi);
+               return deref_address(declaration->type, sel, dbgi);
        }
 
        case DECLARATION_KIND_VARIABLE_LENGTH_ARRAY:
@@ -1443,7 +1433,7 @@ static ir_node *call_expression_to_firm(const call_expression_t *call)
                 * arguments... */
                int n_res       = get_method_n_ress(ir_method_type);
                dbg_info *dbgi  = get_dbg_info(&call->base.source_position);
-               new_method_type = new_d_type_method(unique_ident("calltype"),
+               new_method_type = new_d_type_method(id_unique("calltype.%u"),
                                                  n_parameters, n_res, dbgi);
                set_method_calling_convention(new_method_type,
                               get_method_calling_convention(ir_method_type));
@@ -1519,6 +1509,8 @@ static void assign_value(dbg_info *dbgi, ir_node *addr, type_t *type,
        if(is_type_scalar(type)) {
                ir_node  *store     = new_d_Store(dbgi, memory, addr, value);
                ir_node  *store_mem = new_d_Proj(dbgi, store, mode_M, pn_Store_M);
+               if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE)
+                       set_Store_volatility(store, volatility_is_volatile);
                set_store(store_mem);
        } else {
                ir_type *irtype    = get_ir_type(type);
@@ -1556,7 +1548,7 @@ static void bitfield_store_to_firm(const unary_expression_t *expression,
        assert(select->kind == EXPR_SELECT);
        type_t       *type   = select->base.type;
        assert(type->kind == TYPE_BITFIELD);
-       ir_mode      *mode   = get_ir_mode(type->bitfield.base);
+       ir_mode      *mode   = get_ir_mode(type->bitfield.base_type);
        ir_node      *addr   = expression_to_addr(select);
 
        assert(get_irn_mode(value) == mode);
@@ -1591,6 +1583,11 @@ static void bitfield_store_to_firm(const unary_expression_t *expression,
        ir_node *store     = new_d_Store(dbgi, load_mem, addr, new_val);
        ir_node *store_mem = new_d_Proj(dbgi, store, mode_M, pn_Store_M);
        set_store(store_mem);
+
+       if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
+               set_Load_volatility(load, volatility_is_volatile);
+               set_Store_volatility(store, volatility_is_volatile);
+       }
 }
 
 static void set_value_for_expression(const expression_t *expression,
@@ -1804,7 +1801,7 @@ static ir_node *bitfield_extract_to_firm(const unary_expression_t *expression)
 
        type_t   *type     = select->base.type;
        assert(type->kind == TYPE_BITFIELD);
-       ir_mode  *mode     = get_ir_mode(type->bitfield.base);
+       ir_mode  *mode     = get_ir_mode(type->bitfield.base_type);
        dbg_info *dbgi     = get_dbg_info(&expression->base.source_position);
        ir_node  *addr     = expression_to_addr(select);
        ir_node  *mem      = get_store();
@@ -1879,9 +1876,8 @@ static ir_node *unary_expression_to_firm(const unary_expression_t *expression)
        case EXPR_UNARY_DEREFERENCE: {
                ir_node *value_node = expression_to_firm(value);
                type_t  *value_type = skip_typeref(value->base.type);
-               ir_type *irtype     = get_ir_type(value_type);
-               assert(is_Pointer_type(irtype));
-               ir_type *points_to  = get_pointer_points_to_type(irtype);
+               assert(is_type_pointer(value_type));
+               type_t  *points_to  = value_type->pointer.points_to;
                return deref_address(points_to, value_node, dbgi);
        }
        case EXPR_UNARY_POSTFIX_INCREMENT:
@@ -1897,6 +1893,8 @@ static ir_node *unary_expression_to_firm(const unary_expression_t *expression)
                        node = do_strict_conv(dbgi, node);
                        return node;
                } else {
+                       /* make sure firm type is constructed */
+                       (void) get_ir_type(type);
                        return value_node;
                }
        }
@@ -2082,10 +2080,11 @@ static ir_node *create_sub(const binary_expression_t *expression)
 
                ir_node *const elem_size = get_type_size(ptr_type->points_to);
                ir_mode *const mode      = get_ir_mode(type);
+               ir_node *const conv_size = new_d_Conv(dbgi, elem_size, mode);
                ir_node *const sub       = new_d_Sub(dbgi, left, right, mode);
                ir_node *const no_mem    = new_NoMem();
-               ir_node *const div       = new_d_Div(dbgi, no_mem, sub, elem_size, mode,
-                                                    op_pin_state_floats);
+               ir_node *const div       = new_d_DivRL(dbgi, no_mem, sub, conv_size, mode,
+                                                      op_pin_state_floats);
                return new_d_Proj(dbgi, div, mode, pn_Div_res);
        }
 
@@ -2307,9 +2306,8 @@ static ir_node *array_access_to_firm(
        type_t   *type   = revert_automatic_type_conversion(
                        (const expression_t*) expression);
        type             = skip_typeref(type);
-       ir_type  *irtype = get_ir_type(type);
 
-       return deref_address(irtype, addr, dbgi);
+       return deref_address(type, addr, dbgi);
 }
 
 static long get_offsetof_offset(const offsetof_expression_t *expression)
@@ -2381,7 +2379,7 @@ static ir_node *compound_literal_to_firm(
        /* create an entity on the stack */
        ir_type *frame_type = get_irg_frame_type(current_ir_graph);
 
-       ident     *const id     = unique_ident("CompLit");
+       ident     *const id     = id_unique("CompLit.%u");
        ir_type   *const irtype = get_ir_type(type);
        dbg_info  *const dbgi   = get_dbg_info(&expression->base.source_position);
        ir_entity *const entity = new_d_entity(frame_type, id, irtype, dbgi);
@@ -2547,9 +2545,8 @@ static ir_node *select_to_firm(const select_expression_t *expression)
        type_t   *type   = revert_automatic_type_conversion(
                        (const expression_t*) expression);
        type             = skip_typeref(type);
-       ir_type  *irtype = get_ir_type(type);
 
-       return deref_address(irtype, addr, dbgi);
+       return deref_address(type, addr, dbgi);
 }
 
 /* Values returned by __builtin_classify_type. */
@@ -2579,7 +2576,7 @@ typedef enum gcc_type_class
 
 static ir_node *classify_type_to_firm(const classify_type_expression_t *const expr)
 {
-       const type_t *const type = expr->type_expression->base.type;
+       const type_t *const type = skip_typeref(expr->type_expression->base.type);
 
        gcc_type_class tc;
        switch (type->kind)
@@ -2590,12 +2587,12 @@ static ir_node *classify_type_to_firm(const classify_type_expression_t *const ex
                                /* should not be reached */
                                case ATOMIC_TYPE_INVALID:
                                        tc = no_type_class;
-                                       break;
+                                       goto make_const;
 
                                /* gcc cannot do that */
                                case ATOMIC_TYPE_VOID:
                                        tc = void_type_class;
-                                       break;
+                                       goto make_const;
 
                                case ATOMIC_TYPE_CHAR:      /* gcc handles this as integer */
                                case ATOMIC_TYPE_SCHAR:     /* gcc handles this as integer */
@@ -2610,46 +2607,40 @@ static ir_node *classify_type_to_firm(const classify_type_expression_t *const ex
                                case ATOMIC_TYPE_ULONGLONG:
                                case ATOMIC_TYPE_BOOL:      /* gcc handles this as integer */
                                        tc = integer_type_class;
-                                       break;
+                                       goto make_const;
 
                                case ATOMIC_TYPE_FLOAT:
                                case ATOMIC_TYPE_DOUBLE:
                                case ATOMIC_TYPE_LONG_DOUBLE:
                                        tc = real_type_class;
-                                       break;
-
-#ifdef PROVIDE_COMPLEX
-                               case ATOMIC_TYPE_FLOAT_COMPLEX:
-                               case ATOMIC_TYPE_DOUBLE_COMPLEX:
-                               case ATOMIC_TYPE_LONG_DOUBLE_COMPLEX:
-                                       tc = complex_type_class;
-                                       break;
-                               case ATOMIC_TYPE_FLOAT_IMAGINARY:
-                               case ATOMIC_TYPE_DOUBLE_IMAGINARY:
-                               case ATOMIC_TYPE_LONG_DOUBLE_IMAGINARY:
-                                       tc = complex_type_class;
-                                       break;
-#endif
-
-                               default:
-                                       panic("Unimplemented case in classify_type_to_firm().");
+                                       goto make_const;
                        }
-                       break;
+                       panic("Unexpected atomic type in classify_type_to_firm().");
                }
 
+               case TYPE_COMPLEX:         tc = complex_type_class; goto make_const;
+               case TYPE_IMAGINARY:       tc = complex_type_class; goto make_const;
+               case TYPE_BITFIELD:        tc = integer_type_class; goto make_const;
                case TYPE_ARRAY:           /* gcc handles this as pointer */
                case TYPE_FUNCTION:        /* gcc handles this as pointer */
-               case TYPE_POINTER:         tc = pointer_type_class; break;
-               case TYPE_COMPOUND_STRUCT: tc = record_type_class;  break;
-               case TYPE_COMPOUND_UNION:  tc = union_type_class;   break;
+               case TYPE_POINTER:         tc = pointer_type_class; goto make_const;
+               case TYPE_COMPOUND_STRUCT: tc = record_type_class;  goto make_const;
+               case TYPE_COMPOUND_UNION:  tc = union_type_class;   goto make_const;
 
                /* gcc handles this as integer */
-               case TYPE_ENUM:            tc = integer_type_class; break;
-
-               default:
-                       panic("Unimplemented case in classify_type_to_firm().");
+               case TYPE_ENUM:            tc = integer_type_class; goto make_const;
+
+               case TYPE_BUILTIN:
+               /* typedef/typeof should be skipped already */
+               case TYPE_TYPEDEF:
+               case TYPE_TYPEOF:
+               case TYPE_INVALID:
+               case TYPE_ERROR:
+                       break;
        }
+       panic("unexpected TYPE classify_type_to_firm().");
 
+make_const: ;
        dbg_info *const dbgi = get_dbg_info(&expr->base.source_position);
        ir_mode  *const mode = mode_int;
        tarval   *const tv   = new_tarval_from_long(tc, mode);
@@ -2657,16 +2648,30 @@ static ir_node *classify_type_to_firm(const classify_type_expression_t *const ex
 }
 
 static ir_node *function_name_to_firm(
-               const string_literal_expression_t *const expr)
-{
-       if (current_function_name == NULL) {
-               const source_position_t *const src_pos = &expr->base.source_position;
-               const char *const name = current_function_decl->symbol->string;
-               const string_t string = { name, strlen(name) + 1 };
-               current_function_name = string_to_firm(src_pos, "__func__", &string);
+               const funcname_expression_t *const expr)
+{
+       switch(expr->kind) {
+       case FUNCNAME_FUNCTION:
+       case FUNCNAME_PRETTY_FUNCTION:
+       case FUNCNAME_FUNCDNAME:
+               if (current_function_name == NULL) {
+                       const source_position_t *const src_pos = &expr->base.source_position;
+                       const char *const name = current_function_decl->symbol->string;
+                       const string_t string = { name, strlen(name) + 1 };
+                       current_function_name = string_to_firm(src_pos, "__func__.%u", &string);
+               }
+               return current_function_name;
+       case FUNCNAME_FUNCSIG:
+               if (current_funcsig == NULL) {
+                       const source_position_t *const src_pos = &expr->base.source_position;
+                       ir_entity *ent = get_irg_entity(current_ir_graph);
+                       const char *const name = get_entity_ld_name(ent);
+                       const string_t string = { name, strlen(name) + 1 };
+                       current_funcsig = string_to_firm(src_pos, "__FUNCSIG__.%u", &string);
+               }
+               return current_funcsig;
        }
-
-       return current_function_name;
+       panic("Unsupported function name");
 }
 
 static ir_node *statement_expression_to_firm(const statement_expression_t *expr)
@@ -2698,13 +2703,13 @@ static ir_node *va_start_expression_to_firm(
 
 static ir_node *va_arg_expression_to_firm(const va_arg_expression_t *const expr)
 {
-       ir_type  *const irtype = get_ir_type(expr->base.type);
+       type_t   *const type   = expr->base.type;
        ir_node  *const ap     = expression_to_firm(expr->ap);
        dbg_info *const dbgi   = get_dbg_info(&expr->base.source_position);
-       ir_node  *const res    = deref_address(irtype, ap, dbgi);
+       ir_node  *const res    = deref_address(type, ap, dbgi);
 
-       ir_node  *const cnst      = get_type_size(expr->base.type);
-       ir_node  *const add       = new_d_Add(dbgi, ap, cnst, mode_P_data);
+       ir_node  *const cnst   = get_type_size(expr->base.type);
+       ir_node  *const add    = new_d_Add(dbgi, ap, cnst, mode_P_data);
        set_value_for_expression(expr->ap, add);
 
        return res;
@@ -2762,8 +2767,10 @@ static ir_node *builtin_prefetch_to_firm(
 static ir_node *_expression_to_firm(const expression_t *expression)
 {
        switch(expression->kind) {
-       case EXPR_CHAR_CONST:
-               return char_const_to_firm(&expression->conste);
+       case EXPR_CHARACTER_CONSTANT:
+               return character_constant_to_firm(&expression->conste);
+       case EXPR_WIDE_CHARACTER_CONSTANT:
+               return wide_character_constant_to_firm(&expression->conste);
        case EXPR_CONST:
                return const_to_firm(&expression->conste);
        case EXPR_STRING_LITERAL:
@@ -2790,9 +2797,8 @@ static ir_node *_expression_to_firm(const expression_t *expression)
                return select_to_firm(&expression->select);
        case EXPR_CLASSIFY_TYPE:
                return classify_type_to_firm(&expression->classify_type);
-       case EXPR_FUNCTION:
-       case EXPR_PRETTY_FUNCTION:
-               return function_name_to_firm(&expression->string);
+       case EXPR_FUNCNAME:
+               return function_name_to_firm(&expression->funcname);
        case EXPR_STATEMENT:
                return statement_expression_to_firm(&expression->statement);
        case EXPR_VA_START:
@@ -2926,19 +2932,23 @@ static void create_declaration_entity(declaration_t *declaration,
                                       ir_type *parent_type)
 {
        ident     *const id     = new_id_from_str(declaration->symbol->string);
-       ir_type   *const irtype = get_ir_type(declaration->type);
+       type_t    *const type   = skip_typeref(declaration->type);
+       ir_type   *const irtype = get_ir_type(type);
        dbg_info  *const dbgi   = get_dbg_info(&declaration->source_position);
        ir_entity *const entity = new_d_entity(parent_type, id, irtype, dbgi);
-       set_entity_ld_ident(entity, id);
 
        declaration->declaration_kind = (unsigned char) declaration_kind;
        declaration->v.entity         = entity;
        set_entity_variability(entity, variability_uninitialized);
+       set_entity_ld_ident(entity, create_ld_ident(entity, declaration));
        if(parent_type == get_tls_type())
                set_entity_allocation(entity, allocation_automatic);
        else if(declaration_kind == DECLARATION_KIND_GLOBAL_VARIABLE)
                set_entity_allocation(entity, allocation_static);
-       /* TODO: visibility? */
+
+       if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
+               set_entity_volatility(entity, volatility_is_volatile);
+       }
 }
 
 
@@ -2968,7 +2978,7 @@ static __attribute__((unused)) void debug_print_type_path(const type_path_t *pat
                if(is_type_compound(type)) {
                        fprintf(stderr, ".%s", entry->compound_entry->symbol->string);
                } else if(is_type_array(type)) {
-                       fprintf(stderr, "[%u]", entry->index);
+                       fprintf(stderr, "[%zd]", entry->index);
                } else {
                        fprintf(stderr, "-INVALID-");
                }
@@ -3044,8 +3054,9 @@ static void descend_into_subtype(type_path_t *path)
 
                top->compound_entry = entry;
                top->index          = 0;
-               path->top_type      = entry->type;
                len                 = get_compound_size(&top_type->compound);
+               if(entry != NULL)
+                       path->top_type = entry->type;
        } else {
                assert(is_type_array(top_type));
                assert(top_type->array.size > 0);
@@ -3246,6 +3257,8 @@ static ir_initializer_t *create_ir_initializer_list(
 static ir_initializer_t *create_ir_initializer_string(
                const initializer_string_t *initializer, type_t *type)
 {
+       type = skip_typeref(type);
+
        size_t            string_len    = initializer->string.size;
        assert(type->kind == TYPE_ARRAY && type->array.size_constant);
        size_t            len           = type->array.size;
@@ -3259,7 +3272,7 @@ static ir_initializer_t *create_ir_initializer_string(
                if(i < string_len)
                        c = string[i];
 
-               tarval           *tv = new_tarval_from_long(string[i], mode);
+               tarval           *tv = new_tarval_from_long(c, mode);
                ir_initializer_t *char_initializer = create_initializer_tarval(tv);
 
                set_initializer_compound_value(irinitializer, i, char_initializer);
@@ -3284,7 +3297,7 @@ static ir_initializer_t *create_ir_initializer_wide_string(
                if(i < string_len) {
                        c = string[i];
                }
-               tarval *tv = new_tarval_from_long(string[i], mode);
+               tarval *tv = new_tarval_from_long(c, mode);
                ir_initializer_t *char_initializer = create_initializer_tarval(tv);
 
                set_initializer_compound_value(irinitializer, i, char_initializer);
@@ -3316,14 +3329,31 @@ static ir_initializer_t *create_ir_initializer(
        panic("unknown initializer");
 }
 
+#if 0
+static void create_dynamic_null_initializer(ir_type *type, dbg_info *dbgi,
+                                            ir_node *base_addr)
+{
+       ir_mode *mode = get_type_mode(type);
+       tarval  *zero = get_mode_null(mode);
+       ir_node *cnst = new_d_Const(dbgi, mode, zero);
+
+       /* TODO: bitfields */
+       ir_node *mem    = get_store();
+       ir_node *store  = new_d_Store(dbgi, mem, base_addr, cnst);
+       ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M);
+       set_store(proj_m);
+}
+#endif
+
 static void create_dynamic_initializer_sub(ir_initializer_t *initializer,
                ir_type *type, dbg_info *dbgi, ir_node *base_addr)
 {
        switch(get_initializer_kind(initializer)) {
        case IR_INITIALIZER_NULL: {
-               ir_mode *mode = get_type_mode(type);
                /* TODO: implement this for compound types... */
                assert(type != NULL);
+
+               ir_mode *mode = get_type_mode(type);
                tarval  *zero = get_mode_null(mode);
                ir_node *cnst = new_d_Const(dbgi, mode, zero);
 
@@ -3447,7 +3477,7 @@ static void create_local_initializer(initializer_t *initializer, dbg_info *dbgi,
        current_ir_graph = old_current_ir_graph;
 
        /* create a "template" entity which is copied to the entity on the stack */
-       ident     *const id          = unique_ident("initializer");
+       ident     *const id          = id_unique("initializer.%u");
        ir_type   *const irtype      = get_ir_type(type);
        ir_type   *const global_type = get_glob_type();
        ir_entity *const init_entity = new_d_entity(global_type, id, irtype, dbgi);
@@ -3558,6 +3588,8 @@ static void create_local_variable(declaration_t *declaration)
                return;
        } else if(is_type_array(type) || is_type_compound(type)) {
                needs_entity = true;
+       } else if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
+               needs_entity = true;
        }
 
        if(needs_entity) {
@@ -3581,14 +3613,18 @@ static void create_local_static_variable(declaration_t *declaration)
 
        type_t    *const type        = skip_typeref(declaration->type);
        ir_type   *const global_type = get_glob_type();
-       ident     *const id          = unique_ident(declaration->symbol->string);
+       ident     *const id          = new_id_from_str(declaration->symbol->string);
        ir_type   *const irtype      = get_ir_type(type);
        dbg_info  *const dbgi        = get_dbg_info(&declaration->source_position);
        ir_entity *const entity      = new_d_entity(global_type, id, irtype, dbgi);
-       set_entity_ld_ident(entity, id);
+
+       if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
+               set_entity_volatility(entity, volatility_is_volatile);
+       }
 
        declaration->declaration_kind = DECLARATION_KIND_GLOBAL_VARIABLE;
        declaration->v.entity         = entity;
+       set_entity_ld_ident(entity, create_ld_ident(entity, declaration));
        set_entity_variability(entity, variability_uninitialized);
        set_entity_visibility(entity, visibility_local);
        set_entity_allocation(entity, allocation_static);
@@ -4262,11 +4298,24 @@ static void asm_statement_to_firm(const asm_statement_t *statement)
 #endif
 }
 
+static void    ms_try_statement_to_firm(ms_try_statement_t *statement) {
+       statement_to_firm(statement->try_statement);
+       warningf(&statement->base.source_position, "structured exception handling ignored");
+}
+
+static void    leave_statement_to_firm(leave_statement_t *statement) {
+       errorf(&statement->base.source_position, "__leave not supported yet");
+}
+
 static void statement_to_firm(statement_t *statement)
 {
        switch(statement->kind) {
        case STATEMENT_INVALID:
                panic("invalid statement found");
+               return;
+       case STATEMENT_EMPTY:
+               /* nothing */
+               return;
        case STATEMENT_COMPOUND:
                compound_statement_to_firm(&statement->compound);
                return;
@@ -4312,6 +4361,12 @@ static void statement_to_firm(statement_t *statement)
        case STATEMENT_ASM:
                asm_statement_to_firm(&statement->asms);
                return;
+       case STATEMENT_MS_TRY:
+               ms_try_statement_to_firm(&statement->ms_try);
+               return;
+       case STATEMENT_LEAVE:
+               leave_statement_to_firm(&statement->leave);
+               return;
        }
        panic("Statement not implemented\n");
 }
@@ -4338,10 +4393,12 @@ static int count_local_declarations(const declaration_t *      decl,
 }
 
 static int count_decls_in_expression(const expression_t *expression) {
+       int count = 0;
+
        if(expression == NULL)
                return 0;
 
-       switch(expression->base.kind) {
+       switch((expression_kind_t) expression->base.kind) {
        case EXPR_STATEMENT:
                return count_decls_in_stmts(expression->statement.statement);
        EXPR_BINARY_CASES {
@@ -4352,7 +4409,6 @@ static int count_decls_in_expression(const expression_t *expression) {
        EXPR_UNARY_CASES
                return count_decls_in_expression(expression->unary.value);
        case EXPR_CALL: {
-               int count = 0;
                call_argument_t *argument = expression->call.arguments;
                for( ; argument != NULL; argument = argument->next) {
                        count += count_decls_in_expression(argument->expression);
@@ -4360,7 +4416,63 @@ static int count_decls_in_expression(const expression_t *expression) {
                return count;
        }
 
-       default:
+       case EXPR_UNKNOWN:
+       case EXPR_INVALID:
+               panic("unexpected expression kind");
+
+       case EXPR_COMPOUND_LITERAL:
+               /* TODO... */
+               break;
+
+       case EXPR_CONDITIONAL:
+               count += count_decls_in_expression(expression->conditional.condition);
+               count += count_decls_in_expression(expression->conditional.true_expression);
+               count += count_decls_in_expression(expression->conditional.false_expression);
+               return count;
+
+       case EXPR_BUILTIN_PREFETCH:
+               count += count_decls_in_expression(expression->builtin_prefetch.adr);
+               count += count_decls_in_expression(expression->builtin_prefetch.rw);
+               count += count_decls_in_expression(expression->builtin_prefetch.locality);
+               return count;
+
+       case EXPR_BUILTIN_CONSTANT_P:
+               count += count_decls_in_expression(expression->builtin_constant.value);
+               return count;
+
+       case EXPR_SELECT:
+               count += count_decls_in_expression(expression->select.compound);
+               return count;
+
+       case EXPR_ARRAY_ACCESS:
+               count += count_decls_in_expression(expression->array_access.array_ref);
+               count += count_decls_in_expression(expression->array_access.index);
+               return count;
+
+       case EXPR_CLASSIFY_TYPE:
+               count += count_decls_in_expression(expression->classify_type.type_expression);
+               return count;
+
+       case EXPR_SIZEOF:
+       case EXPR_ALIGNOF: {
+               expression_t *tp_expression = expression->typeprop.tp_expression;
+               if (tp_expression != NULL) {
+                       count += count_decls_in_expression(tp_expression);
+               }
+               return count;
+       }
+
+       case EXPR_OFFSETOF:
+       case EXPR_REFERENCE:
+       case EXPR_CONST:
+       case EXPR_CHARACTER_CONSTANT:
+       case EXPR_WIDE_CHARACTER_CONSTANT:
+       case EXPR_STRING_LITERAL:
+       case EXPR_WIDE_STRING_LITERAL:
+       case EXPR_FUNCNAME:
+       case EXPR_BUILTIN_SYMBOL:
+       case EXPR_VA_START:
+       case EXPR_VA_ARG:
                break;
        }
 
@@ -4376,6 +4488,9 @@ static int count_decls_in_stmts(const statement_t *stmt)
        int count = 0;
        for (; stmt != NULL; stmt = stmt->base.next) {
                switch (stmt->kind) {
+                       case STATEMENT_EMPTY:
+                               break;
+
                        case STATEMENT_DECLARATION: {
                                const declaration_statement_t *const decl_stmt = &stmt->declaration;
                                count += count_local_declarations(decl_stmt->declarations_begin,
@@ -4458,6 +4573,7 @@ static int count_decls_in_stmts(const statement_t *stmt)
                        }
 
                        case STATEMENT_GOTO:
+                       case STATEMENT_LEAVE:
                        case STATEMENT_INVALID:
                                break;
 
@@ -4466,6 +4582,15 @@ static int count_decls_in_stmts(const statement_t *stmt)
                                count += count_decls_in_expression(ret_stmt->value);
                                break;
                        }
+
+                       case STATEMENT_MS_TRY: {
+                               const ms_try_statement_t *const try_stmt = &stmt->ms_try;
+                               count += count_decls_in_stmts(try_stmt->try_statement);
+                               if(try_stmt->except_expression != NULL)
+                                       count += count_decls_in_expression(try_stmt->except_expression);
+                               count += count_decls_in_stmts(try_stmt->final_statement);
+                               break;
+                       }
                }
        }
        return count;
@@ -4571,6 +4696,7 @@ static void create_function(declaration_t *declaration)
 
        current_function_decl = declaration;
        current_function_name = NULL;
+       current_funcsig       = NULL;
 
        assert(imature_blocks == NULL);
        imature_blocks = NEW_ARR_F(ir_node*, 0);
@@ -4582,7 +4708,7 @@ static void create_function(declaration_t *declaration)
        /* set inline flags */
        if (declaration->is_inline)
        set_irg_inline_property(irg, irg_inline_recomended);
-    handle_decl_modifier_irg(irg, declaration->modifiers);
+    handle_decl_modifier_irg(irg, declaration->decl_modifiers);
 
        next_value_number_function = 0;
        initialize_function_parameters(declaration);
@@ -4711,6 +4837,27 @@ void init_ast2firm(void)
        obstack_init(&asm_obst);
        init_atomic_modes();
 
+       id_underscore = new_id_from_chars("_", 1);
+       id_imp        = new_id_from_chars("__imp_", 6);
+
+       /* OS option must be set to the backend */
+       const char *s = "ia32-gasmode=linux";
+       switch (firm_opt.os_support) {
+       case OS_SUPPORT_WIN32:
+               create_ld_ident = create_ld_ident_win32;
+               s = "ia32-gasmode=mingw";
+               break;
+       case OS_SUPPORT_LINUX:
+               create_ld_ident = create_ld_ident_linux_elf;
+               s = "ia32-gasmode=linux"; break;
+               break;
+       case OS_SUPPORT_MACHO:
+               create_ld_ident = create_ld_ident_macho;
+               s = "ia32-gasmode=macho"; break;
+               break;
+       }
+       firm_be_option(s);
+
        /* create idents for all known runtime functions */
        for (size_t i = 0; i < sizeof(rts_data) / sizeof(rts_data[0]); ++i) {
                predef_idents[rts_data[i].id] = new_id_from_str(rts_data[i].name);
@@ -4731,10 +4878,7 @@ static void init_ir_types(void)
        ir_type_int        = get_ir_type(type_int);
        ir_type_const_char = get_ir_type(type_const_char);
        ir_type_wchar_t    = get_ir_type(type_wchar_t);
-       ir_type_void       = get_ir_type(type_int); /* we don't have a real void
-                                                      type in firm */
-
-       type_void->base.firm_type = ir_type_void;
+       ir_type_void       = get_ir_type(type_void);
 }
 
 void exit_ast2firm(void)