- * irn_ops base class.
- */
-struct _arch_irn_ops_t {
- const arch_irn_ops_if_t *impl;
-};
-
-extern const arch_irn_ops_t *arch_get_irn_ops(const arch_env_t *env, const ir_node *irn);
-
-extern void arch_set_frame_offset(const arch_env_t *env, ir_node *irn, int bias);
-
-extern ir_entity *arch_get_frame_entity(const arch_env_t *env, ir_node *irn);
-extern void arch_set_frame_entity(const arch_env_t *env, ir_node *irn, ir_entity *ent);
-extern int arch_get_sp_bias(const arch_env_t *env, ir_node *irn);
-
-extern int arch_get_op_estimated_cost(const arch_env_t *env, const ir_node *irn);
-extern arch_inverse_t *arch_get_inverse(const arch_env_t *env, const ir_node *irn, int i, arch_inverse_t *inverse, struct obstack *obstack);
-extern int arch_possible_memory_operand(const arch_env_t *env, const ir_node *irn, unsigned int i);
-extern void arch_perform_memory_operand(const arch_env_t *env, ir_node *irn, ir_node *spill, unsigned int i);
-
-/**
- * Get the register requirements for a node.
- * @param env The architecture environment.
- * @param req A pointer to a requirements structure, where the data can
- * be put into.
- * @param irn The node.
- * @param pos The position of the operand you're interested in.
- * @return A pointer to the register requirements which may <b>not</b>
- * neccessarily be equal to @p req. If NULL is returned, the
- * operand was no register operand.
- */
-extern const arch_register_req_t *
-arch_get_register_req(const arch_env_t *env, const ir_node *irn, int pos);
-
-/**
- * Check if an operand is a register operand.
- * @param env The environment.
- * @param irn The node.
- * @param pos The position of the operand.
- * @return 1, if the operand is significant for register allocation, 0
- * if not.
- */
-extern int arch_is_register_operand(const arch_env_t *env,
- const ir_node *irn, int pos);
-
-/**
- * Get the number of allocatable registers concerning
- * a register class for an operand of a node.
- * @param env The environment.
- * @param irn The node.
- * @param pos The postition of the node's operand.
- * @param bs The bitset all allocatable registers shall be put into.
- * Note, that you can also pass NULL here. If you don't,
- * make sure, the bitset is as large as the register class
- * has registers.
- * @return The amount of registers allocatable for that operand.
- */
-extern int arch_get_allocatable_regs(const arch_env_t *env, const ir_node *irn, int pos, bitset_t *bs);
-
-/**
- * Put all registers which shall not be ignored by the register
- * allocator in a bit set.
- * @param env The arch env.
- * @param cls The register class to consider.
- * @param bs The bit set to put the registers to.
- */
-extern void arch_put_non_ignore_regs(const arch_env_t *env, const arch_register_class_t *cls, bitset_t *bs);
-
-/**
- * Check, if a register is assignable to an operand of a node.
- * @param env The architecture environment.
- * @param irn The node.
- * @param pos The position of the operand.
- * @param reg The register.
- * @return 1, if the register might be allocated to the operand 0 if not.
- */
-extern int arch_reg_is_allocatable(const arch_env_t *env,
- const ir_node *irn, int pos, const arch_register_t *reg);
-
-/**
- * Get the register class of an operand of a node.
- * @param env The architecture environment.
- * @param irn The node.
- * @param pos The position of the operand, -1 for the output.
- * @return The register class of the operand or NULL, if
- * operand is a non-register operand.
- */
-extern const arch_register_class_t *
-arch_get_irn_reg_class(const arch_env_t *env, const ir_node *irn, int pos);
-
-/**
- * Get the register allocated at a certain output operand of a node.
- * @param env The arch environment.
- * @param irn The node.
- * @return The register allocated for this operand
- */
-extern const arch_register_t *
-arch_get_irn_register(const arch_env_t *env, const ir_node *irn);
-
-/**
- * Set the register for a certain output operand.
- * @param env The architecture environment.
- * @param irn The node.
- * @param idx The index of the output operand.
- * @param reg The register.
- */
-extern void arch_set_irn_register(const arch_env_t *env, ir_node *irn,
- const arch_register_t *reg);
-
-/**
- * Classify a node.
- * @param env The architecture environment.
- * @param irn The node.
- * @return A classification of the node.
- */
-extern arch_irn_class_t arch_irn_classify(const arch_env_t *env, const ir_node *irn);
-
-#define arch_irn_class_is(env, irn, irn_class) ((arch_irn_classify(env, irn) & arch_irn_class_ ## irn_class) != 0)
-
-/**
- * Get the flags of a node.
- * @param env The architecture environment.
- * @param irn The node.
- * @return The flags.
- */
-extern arch_irn_flags_t arch_irn_get_flags(const arch_env_t *env, const ir_node *irn);
-
-#define arch_irn_is(env, irn, flag) ((arch_irn_get_flags(env, irn) & arch_irn_flags_ ## flag) != 0)
-
-#define arch_irn_has_reg_class(env, irn, pos, cls) \
- ((cls) == arch_get_irn_reg_class(env, irn, pos))
-
-#define arch_irn_consider_in_reg_alloc(env, cls, irn) \
- (arch_irn_has_reg_class(env, irn, -1, cls) && !arch_irn_is(env, irn, ignore))
-
-/**
- * Somebody who can be asked about IR nodes.
- */
-struct _arch_irn_handler_t {
-
- /**
- * Get the operations of an irn.
- * @param self The handler from which the method is invoked.
- * @param irn Some node.
- * @return Operations for that irn.
- */
- const void *(*get_irn_ops)(const arch_irn_handler_t *handler,
- const ir_node *irn);
-};
-
-/**
- * The code generator interface.