+/**
+ * Symbolic names for the different dumping colors.
+ */
+typedef enum ird_color_t {
+ ird_color_none = -1,
+ ird_color_prog_background,
+ ird_color_block_background,
+ ird_color_dead_block_background,
+ ird_color_block_inout,
+ ird_color_default_node,
+ ird_color_phi,
+ ird_color_memory,
+ ird_color_controlflow,
+ ird_color_const,
+ ird_color_anchor,
+ ird_color_proj,
+ ird_color_uses_memory,
+ ird_color_error,
+ ird_color_entity,
+ ird_color_count
+} ird_color_t;
+
+/**
+ * Edge kinds.
+ */
+typedef enum {
+ data_edge = 0x01, /**< A data edge between two basic blocks. */
+ block_edge = 0x02, /**< An edge from a node to its basic block. */
+ cf_edge = 0x03, /**< A regularly control flow edge. */
+ exc_cf_edge = 0x04, /**< An exceptional control flow edge. */
+ mem_edge = 0x05, /**< A memory edge. */
+ dominator_edge = 0x06, /**< A dominator edge from a block to its immediate dominator. */
+ node2type_edge = 0x07, /**< An edge from an IR node to a type. */
+
+ ent_type_edge = 0x11, /**< An edge from an entity to its type. */
+ ent_own_edge = 0x12, /**< An edge from an entity to its owner type. */
+ ent_overwrites_edge = 0x13, /**< An edge from an entity to the entity it overwrites. */
+ ent_value_edge = 0x14, /**< An edge from an entity to its value entity. */
+ ent_corr_edge = 0x15, /**< An edge from an entity to the member entity its initializes. */
+
+ meth_par_edge = 0x21, /**< An edge from a method type to one of its parameter types. */
+ meth_res_edge = 0x22, /**< An edge from a method type to one of its result types. */
+ type_super_edge = 0x23, /**< An edge from a class type to its super/basis type. */
+ union_edge = 0x24, /**< An edge from a union type to its member types. */
+ ptr_pts_to_edge = 0x25, /**< An edge from a pointer type to its points-to type. */
+ arr_elt_type_edge = 0x26, /**< An edge from an array type to its element type. */
+ arr_ent_edge = 0x27, /**< An edge from a array type to its element entity. */
+ type_member_edge = 0x28, /**< An edge from a compound type to its member entities. */
+
+ /* additional flags */
+ intra_edge = 0, /**< Intra edge flag: edge do not cross basic block boundaries */
+ inter_edge = 0x40, /**< Inter edge flag: edge cross basic block boundaries */
+ back_edge = 0x80 /**< Backwards edge flag. */
+} edge_kind;
+