if (this->forward_declaration_type() != NULL
|| this->named_type() != NULL)
- return this->get_tree_without_hash(gogo);
+ return type_to_tree(this->get_btype_without_hash(gogo));
if (this->is_error_type())
return error_mark_node;
return ins.first->second;
}
- tree t = this->get_tree_without_hash(gogo);
+ tree t = type_to_tree(this->get_btype_without_hash(gogo));
if (ins.first->second == NULL_TREE)
ins.first->second = t;
return t;
}
-// Return a tree for a type without looking in the hash table for
-// identical types. This is used for named types, since there is no
-// point to looking in the hash table for them.
+// Return the backend representation for a type without looking in the
+// hash table for identical types. This is used for named types,
+// since a named type is never identical to any other type.
-tree
-Type::get_tree_without_hash(Gogo* gogo)
+Btype*
+Type::get_btype_without_hash(Gogo* gogo)
{
if (this->tree_ == NULL_TREE)
{
- tree t = this->do_get_tree(gogo);
+ Btype* bt = tree_to_type(this->do_get_tree(gogo));
// For a recursive function or pointer type, we will temporarily
// return a circular pointer type during the recursion. We
// don't want to record that for a forwarding type, as it may
// confuse us later.
if (this->forward_declaration_type() != NULL
- && gogo->backend()->is_circular_pointer_type(tree_to_type(t)))
- return t;
+ && gogo->backend()->is_circular_pointer_type(bt))
+ return bt;
if (gogo == NULL || !gogo->named_types_are_converted())
- return t;
+ return bt;
+ tree t = type_to_tree(bt);
this->tree_ = t;
- go_preserve_from_gc(t);
}
- return this->tree_;
-}
-
-// Return the backend representation for a type without looking in the
-// hash table for identical types. This is used for named types,
-// since a named type is never identical to any other type.
-
-Btype*
-Type::get_btype_without_hash(Gogo* gogo)
-{
- return tree_to_type(this->get_tree_without_hash(gogo));
+ return tree_to_type(this->tree_);
}
// Return a tree representing a zero initialization for this type.
protected:
tree
- do_get_tree(Gogo*)
- { return error_mark_node; }
+ do_get_tree(Gogo* gogo)
+ { return type_to_tree(gogo->backend()->error_type()); }
tree
do_get_init_tree(Gogo*, tree, bool)
protected:
tree
- do_get_tree(Gogo*)
- { return ptr_type_node; }
+ do_get_tree(Gogo* gogo)
+ {
+ Btype* bt = gogo->backend()->pointer_type(gogo->backend()->void_type());
+ return type_to_tree(bt);
+ }
tree
do_get_init_tree(Gogo*, tree type_tree, bool is_clear)
return true;
}
-// Get a tree for a map type. A map type is represented as a pointer
-// to a struct. The struct is __go_map in libgo/map.h.
+// Get the backend representation for a map type. A map type is
+// represented as a pointer to a struct. The struct is __go_map in
+// libgo/map.h.
tree
Map_type::do_get_tree(Gogo* gogo)
{
- static tree type_tree;
- if (type_tree == NULL_TREE)
+ static Btype* backend_map_type;
+ if (backend_map_type == NULL)
{
- tree struct_type = make_node(RECORD_TYPE);
-
- tree map_descriptor_type = gogo->map_descriptor_type();
- tree const_map_descriptor_type =
- build_qualified_type(map_descriptor_type, TYPE_QUAL_CONST);
- tree name = get_identifier("__descriptor");
- tree field = build_decl(BUILTINS_LOCATION, FIELD_DECL, name,
- build_pointer_type(const_map_descriptor_type));
- DECL_CONTEXT(field) = struct_type;
- TYPE_FIELDS(struct_type) = field;
- tree last_field = field;
+ std::vector<Backend::Btyped_identifier> bfields(4);
- name = get_identifier("__element_count");
- field = build_decl(BUILTINS_LOCATION, FIELD_DECL, name, sizetype);
- DECL_CONTEXT(field) = struct_type;
- DECL_CHAIN(last_field) = field;
- last_field = field;
-
- name = get_identifier("__bucket_count");
- field = build_decl(BUILTINS_LOCATION, FIELD_DECL, name, sizetype);
- DECL_CONTEXT(field) = struct_type;
- DECL_CHAIN(last_field) = field;
- last_field = field;
+ Type* pdt = Type::make_type_descriptor_ptr_type();
+ bfields[0].name = "__descriptor";
+ bfields[0].btype = tree_to_type(pdt->get_tree(gogo));
+ bfields[0].location = BUILTINS_LOCATION;
- name = get_identifier("__buckets");
- field = build_decl(BUILTINS_LOCATION, FIELD_DECL, name,
- build_pointer_type(ptr_type_node));
- DECL_CONTEXT(field) = struct_type;
- DECL_CHAIN(last_field) = field;
+ Type* uintptr_type = Type::lookup_integer_type("uintptr");
+ bfields[1].name = "__element_count";
+ bfields[1].btype = tree_to_type(uintptr_type->get_tree(gogo));
+ bfields[1].location = BUILTINS_LOCATION;
- layout_type(struct_type);
+ bfields[2].name = "__bucket_count";
+ bfields[2].btype = bfields[1].btype;
+ bfields[2].location = BUILTINS_LOCATION;
- // Give the struct a name for better debugging info.
- name = get_identifier("__go_map");
- tree type_decl = build_decl(BUILTINS_LOCATION, TYPE_DECL, name,
- struct_type);
- DECL_ARTIFICIAL(type_decl) = 1;
- TYPE_NAME(struct_type) = type_decl;
- go_preserve_from_gc(type_decl);
- rest_of_decl_compilation(type_decl, 1, 0);
+ Btype* bvt = gogo->backend()->void_type();
+ Btype* bpvt = gogo->backend()->pointer_type(bvt);
+ Btype* bppvt = gogo->backend()->pointer_type(bpvt);
+ bfields[3].name = "__buckets";
+ bfields[3].btype = bppvt;
+ bfields[3].location = BUILTINS_LOCATION;
- type_tree = build_pointer_type(struct_type);
- go_preserve_from_gc(type_tree);
+ Btype *bt = gogo->backend()->struct_type(bfields);
+ bt = gogo->backend()->named_type("__go_map", bt, BUILTINS_LOCATION);
+ backend_map_type = gogo->backend()->pointer_type(bt);
}
-
- return type_tree;
+ return type_to_tree(backend_map_type);
}
// Initialize a map.
// libgo/runtime/channel.h.
tree
-Channel_type::do_get_tree(Gogo*)
+Channel_type::do_get_tree(Gogo* gogo)
{
- static tree type_tree;
- if (type_tree == NULL_TREE)
+ static Btype* backend_channel_type;
+ if (backend_channel_type == NULL)
{
- tree ret = make_node(RECORD_TYPE);
- TYPE_NAME(ret) = get_identifier("__go_channel");
- TYPE_STUB_DECL(ret) = build_decl(BUILTINS_LOCATION, TYPE_DECL, NULL_TREE,
- ret);
- type_tree = build_pointer_type(ret);
- go_preserve_from_gc(type_tree);
+ std::vector<Backend::Btyped_identifier> bfields;
+ Btype* bt = gogo->backend()->struct_type(bfields);
+ bt = gogo->backend()->named_type("__go_channel", bt, BUILTINS_LOCATION);
+ backend_channel_type = gogo->backend()->pointer_type(bt);
}
- return type_tree;
+ return type_to_tree(backend_channel_type);
}
// Initialize a channel variable.
return TRAVERSE_CONTINUE;
}
-// Get a tree for the type.
+// Get the backend representation for the type.
tree
Forward_declaration_type::do_get_tree(Gogo* gogo)
return error_mark_node;
// We represent an undefined type as a struct with no fields. That
- // should work fine for the middle-end, since the same case can
- // arise in C.
- Named_object* no = this->named_object();
- tree type_tree = make_node(RECORD_TYPE);
- tree id = no->get_id(gogo);
- tree decl = build_decl(no->location(), TYPE_DECL, id, type_tree);
- TYPE_NAME(type_tree) = decl;
- layout_type(type_tree);
- return type_tree;
+ // should work fine for the backend, since the same case can arise
+ // in C.
+ std::vector<Backend::Btyped_identifier> fields;
+ Btype* bt = gogo->backend()->struct_type(fields);
+ bt = gogo->backend()->named_type(this->name(), bt,
+ this->named_object()->location());
+ return type_to_tree(bt);
}
// Build a type descriptor for a forwarded type.
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