* @brief Backend irg - a ir_graph with additional analysis information.
* @author Matthias Braun
* @date 05.05.2006
- * @version $Id$
*/
#ifndef FIRM_BE_BEIRG_H
#define FIRM_BE_BEIRG_H
#include "be_t.h"
#include "irtypes.h"
-be_lv_t *be_assure_liveness(ir_graph *irg);
-
-void be_assure_dom_front(ir_graph *irg);
-void be_invalidate_dom_front(ir_graph *irg);
+void be_assure_live_sets(ir_graph *irg);
+void be_assure_live_chk(ir_graph *irg);
+/**
+ * Liveness is invalid (call when nodes have been added but the control
+ * flow has not been changed)
+ */
+void be_invalidate_live_sets(ir_graph *irg);
+/**
+ * Call when control flow has changed.
+ * be_invalidate_live_sets() is called.
+ */
+void be_invalidate_live_chk(ir_graph *irg);
/**
- * frees all memory allocated by birg structures (liveness, dom_front, ...).
+ * frees all memory allocated by birg structures (liveness, ...).
* The memory of the birg structure itself is not freed.
*/
void be_free_birg(ir_graph *irg);
/**
* This type describes the stack layout.
* The stack is divided into 3 parts:
- * - arg_type: A struct type describing the stack arguments and it's order.
+ * - 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 */
- int stack_dir; /**< -1 for decreasing, 1 for increasing. */
- bool sp_relative : 1; /**< entities are addressed relative to
- stack pointer (omit-fp mode) */
+ 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. */
+
+ 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) */
};
/**
ir_graph *irg;
be_main_env_t *main_env;
be_abi_irg_t *abi;
- 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
return be_birg_from_irg(irg)->lv;
}
-static inline ir_exec_freq *be_get_irg_exec_freq(const ir_graph *irg)
-{
- return be_birg_from_irg(irg)->exec_freq;
-}
-
-static inline be_dom_front_info_t *be_get_irg_dom_front(const ir_graph *irg)
-{
- return be_birg_from_irg(irg)->dom_front;
-}
-
static inline be_abi_irg_t *be_get_irg_abi(const ir_graph *irg)
{
return be_birg_from_irg(irg)->abi;
be_birg_from_irg(irg)->abi = abi;
}
-static inline be_options_t *be_get_irg_options(const ir_graph *irg)
-{
- return be_birg_from_irg(irg)->main_env->options;
-}
-
/** deprecated */
static inline ir_graph *be_get_birg_irg(const be_irg_t *birg)
{
static inline struct obstack *be_get_be_obst(const ir_graph *irg)
{
- be_irg_t *birg = be_birg_from_irg(irg);
- return &birg->obst;
+ be_irg_t *const birg = be_birg_from_irg(irg);
+ struct obstack *const obst = &birg->obst;
+ assert(obstack_object_size(obst) == 0);
+ return obst;
}
static inline be_stack_layout_t *be_get_irg_stack_layout(const ir_graph *irg)