*/
void be_free_birg(ir_graph *irg);
+/** The number of parts of the stack layout. */
+#define N_FRAME_TYPES 3
+
+/**
+ * This type describes the stack layout.
+ * The stack is divided into 3 parts:
+ * - arg_type: A struct type describing the stack arguments and its order.
+ * - between_type: A struct type describing the stack layout between arguments
+ * and frame type. In architectures that put the return address
+ * automatically on the stack, the return address is put here.
+ * - frame_type: A class type describing the frame layout.
+ */
+struct be_stack_layout_t {
+ ir_type *arg_type; /**< A type describing the stack argument layout. */
+ ir_type *between_type; /**< A type describing the "between" layout. */
+ ir_type *frame_type; /**< The frame type. */
+
+ ir_type *order[N_FRAME_TYPES]; /**< arg, between and frame types ordered. */
+
+ ir_entity **param_map; /**< An array mapping type parameters to arg_type entries */
+ int initial_offset; /**< the initial difference between stack pointer and frame pointer */
+ int initial_bias; /**< the initial stack bias */
+ bool sp_relative : 1; /**< entities are addressed relative to
+ stack pointer (omit-fp mode) */
+};
+
/**
* An ir_graph with additional analysis data about this irg. Also includes some
* backend structures
ir_graph *irg;
be_main_env_t *main_env;
be_abi_irg_t *abi;
- arch_code_generator_t *cg;
ir_exec_freq *exec_freq;
be_dom_front_info_t *dom_front;
be_lv_t *lv;
+ be_stack_layout_t stack_layout;
+ unsigned *allocatable_regs; /**< registers available for the
+ allocator */
+ arch_register_req_t *sp_req; /**< requirements for stackpointer producing
+ nodes. */
struct obstack obst; /**< birg obstack (mainly used to keep
register constraints which we can't keep
- in the irg obst, because it gets replace
+ in the irg obst, because it gets replaced
during code selection) */
+ void *isa_link; /**< architecture specific per-graph data*/
} be_irg_t;
static inline be_irg_t *be_birg_from_irg(const ir_graph *irg)
return be_birg_from_irg(irg)->abi;
}
-static inline be_options_t *be_get_irg_options(const ir_graph *irg)
+static inline void be_set_irg_abi(ir_graph *irg, be_abi_irg_t *abi)
{
- return be_birg_from_irg(irg)->main_env->options;
+ be_birg_from_irg(irg)->abi = abi;
}
-static inline arch_code_generator_t *be_get_irg_cg(const ir_graph *irg)
+static inline be_options_t *be_get_irg_options(const ir_graph *irg)
{
- return be_birg_from_irg(irg)->cg;
+ return be_birg_from_irg(irg)->main_env->options;
}
/** deprecated */
return &birg->obst;
}
-#endif /* FIRM_BE_BEIRG_H */
+static inline be_stack_layout_t *be_get_irg_stack_layout(const ir_graph *irg)
+{
+ return &be_birg_from_irg(irg)->stack_layout;
+}
+
+#endif