Add interface and abstract flags to class types.

[libfirm] / ir / tr / type.c

diff --git a/ir/tr/type.c b/ir/tr/type.c
index 39f323c..d0820ac 100644 (file)
--- a/ir/tr/type.c
+++ b/ir/tr/type.c
@@ -361,6 +361,7 @@ int get_type_alignment_bits(ir_type *tp) {
 void
 set_type_alignment_bits(ir_type *tp, int align) {
   assert(tp && tp->kind == k_type);
+  assert((align == -1 || (align & (align - 1)) == 0) && "type alignment not power of two");
   /* Methods don't have an alignment. */
   if (tp->type_op != type_method) {
     tp->align = align;
@@ -369,7 +370,11 @@ set_type_alignment_bits(ir_type *tp, int align) {
 
 void
 set_type_alignment_bytes(ir_type *tp, int align) {
-  set_type_alignment_bits(tp, 8*align);
+       if (align == -1) {
+               set_type_alignment_bits(tp, -1);
+       } else {
+               set_type_alignment_bits(tp, 8*align);
+       }
 }
 
 /* Returns a human readable string for the enum entry. */
@@ -765,7 +770,8 @@ ir_type *new_d_type_class (ident *name, dbg_info *db) {
   res->attr.ca.supertypes  = NEW_ARR_F (ir_type *, 0);
   res->attr.ca.peculiarity = peculiarity_existent;
   res->attr.ca.type_info   = NULL;
-  res->attr.ca.final       = 0;
+  res->attr.ca.vtable_size = 0;
+  res->attr.ca.clss_flags  = cf_none;
   res->attr.ca.dfn         = 0;
   hook_new_type(res);
   return res;
@@ -971,12 +977,44 @@ void        set_class_peculiarity (ir_type *clss, peculiarity pec) {
   clss->attr.ca.peculiarity = pec;
 }
 
+/* Returns the size of the virtual function table. */
+unsigned (get_class_vtable_size)(const ir_type *clss) {
+  return _get_class_vtable_size(clss);
+}
+
+/* Sets a new size of the virtual function table. */
+void (set_class_vtable_size)(ir_type *clss, unsigned size) {
+  _set_class_vtable_size(clss, size);
+}
+
+/* Returns non-zero if a class is final. */
 int (is_class_final)(const ir_type *clss) {
   return _is_class_final(clss);
 }
 
-void (set_class_final)(ir_type *clss, int final) {
-  _set_class_final(clss, final);
+/* Sets if a class is final. */
+void (set_class_final)(ir_type *clss, int flag) {
+  _set_class_final(clss, flag);
+}
+
+/* Returns non-zero if a class is an interface. */
+int (is_class_interface)(const ir_type *clss) {
+  return _is_class_interface(clss);
+}
+
+/* Sets the class interface flag. */
+void (set_class_interface)(ir_type *clss, int flag) {
+  _set_class_interface(clss, flag);
+}
+
+/* Returns non-zero if a class is abstract. */
+int (is_class_abstract)(const ir_type *clss) {
+  return _is_class_abstract(clss);
+}
+
+/* Sets the class abstract flag. */
+void (set_class_abstract)(ir_type *clss, int final) {
+  _set_class_abstract(clss, final);
 }
 
 void set_class_dfn (ir_type *clss, int dfn) {
@@ -1514,6 +1552,7 @@ void free_array_attrs (ir_type *array) {
   assert(array && (array->type_op == type_array));
   free(array->attr.aa.lower_bound);
   free(array->attr.aa.upper_bound);
+  free(array->attr.aa.order);
 }
 
 /* manipulate private fields of array ir_type */
@@ -1930,3 +1969,60 @@ ir_type *get_associated_type(const ir_type *tp) {
 void set_default_size_bits(ir_type *tp, int size) {
   tp->size = size;
 }
+
+/*
+ * Allocate an area of size bytes aligned at alignment
+ * at the start or the end of a frame type.
+ * The frame type must have already an fixed layout.
+ */
+entity *frame_alloc_area(type *frame_type, int size, int alignment, int at_start)
+{
+  entity *area;
+  ir_type *tp;
+  ident *name;
+  char buf[32];
+  int frame_align, i, offset, frame_size;
+  static unsigned area_cnt = 0;
+  static ir_type *a_byte = NULL;
+
+  assert(is_frame_type(frame_type));
+  assert(get_type_state(frame_type) == layout_fixed);
+
+  if (! a_byte)
+    a_byte = new_type_primitive(new_id_from_chars("byte", 4), mode_Bu);
+
+  snprintf(buf, sizeof(buf), "area%u", area_cnt++);
+  name = new_id_from_str(buf);
+
+  /* align the size */
+  frame_align = get_type_alignment_bytes(frame_type);
+  size = (size + frame_align - 1) & -frame_align;
+
+  tp = new_type_array(mangle_u(get_type_ident(frame_type), name), 1, a_byte);
+  set_array_bounds_int(tp, 0, 0, size);
+  set_type_alignment_bytes(tp, alignment);
+
+  frame_size = get_type_size_bytes(frame_type);
+  if (at_start) {
+    /* fix all offsets so far */
+    for (i = get_class_n_members(frame_type) - 1; i >= 0; --i) {
+      entity *ent = get_class_member(frame_type, i);
+
+      set_entity_offset_bytes(ent, get_entity_offset_bytes(ent) + size);
+    }
+    /* calculate offset and new type size */
+    offset = 0;
+    frame_size += size;
+  }
+  else {
+    /* calculate offset and new type size */
+    offset = (frame_size + alignment - 1) & -alignment;
+    frame_size = offset + size;
+  }
+
+  area = new_entity(frame_type, name, tp);
+  set_entity_offset_bytes(area, offset);
+  set_type_size_bytes(frame_type, frame_size);
+
+  return area;
+}