/*
- * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
*
* This file is part of libFirm.
*
#include "firm_types.h"
#include "bitset.h"
#include "be.h"
+#include "obst.h"
typedef struct arch_register_class_t arch_register_class_t;
typedef struct arch_register_req_t arch_register_req_t;
typedef struct arch_flag_t arch_flag_t;
typedef struct arch_inverse_t arch_inverse_t;
typedef struct arch_isa_if_t arch_isa_if_t;
-typedef struct arch_isa_t arch_isa_t;
typedef struct arch_env_t arch_env_t;
-typedef struct arch_irn_ops_if_t arch_irn_ops_if_t;
-typedef struct arch_irn_ops_t arch_irn_ops_t;
-typedef struct arch_irn_handler_t arch_irn_handler_t;
typedef struct arch_code_generator_t arch_code_generator_t;
typedef struct arch_code_generator_if_t arch_code_generator_if_t;
+typedef enum arch_register_class_flags_t {
+ arch_register_class_flag_none = 0,
+ arch_register_class_flag_manual_ra = 1, /**< don't do automatic register allocation for this class */
+ arch_register_class_flag_state = 2
+} arch_register_class_flags_t;
+
typedef enum arch_register_type_t {
- arch_register_type_none = 0,
+ arch_register_type_none = 0,
arch_register_type_caller_save = 1, /**< The register must be saved by the caller
- upon a function call. It thus can be overwritten
- in the called function. */
+ upon a function call. It thus can be overwritten
+ in the called function. */
arch_register_type_callee_save = 2, /**< The register must be saved by the caller
- upon a function call. It thus can be overwritten
- in the called function. */
+ upon a function call. It thus can be overwritten
+ in the called function. */
arch_register_type_ignore = 4, /**< Do not consider this register when allocating. */
arch_register_type_joker = 8, /**< The emitter can choose an arbitrary register */
- arch_register_type_virtual = 16, /**< This is just a virtual register */
- arch_register_type_state = 32,
+ arch_register_type_virtual = 16, /**< This is just a virtual register.Virtual registers have
+ nearly no constraints, it is a allowed to have multiple
+ definition for the same register at a point) */
+ arch_register_type_state = 32, /**< The register represents a state that should be handled by
+ bestate code */
} arch_register_type_t;
-/**
- * Put all registers in a class into a bitset.
- * @param cls The class.
- * @param bs The bitset. May be NULL.
- * @return The number of registers in the class.
- */
-extern int arch_register_class_put(const arch_register_class_t *cls, bitset_t *bs);
-
typedef enum arch_operand_type_t {
- arch_operand_type_invalid,
+ arch_operand_type_invalid,
arch_operand_type_memory,
arch_operand_type_register,
arch_operand_type_immediate,
* Different types of register allocation requirements.
*/
typedef enum arch_register_req_type_t {
- arch_register_req_type_none = 0, /**< No register requirement. */
- arch_register_req_type_normal = 1, /**< All registers in the class are allowed. */
- arch_register_req_type_limited = 2, /**< Only a real subset of the class is allowed. */
- arch_register_req_type_should_be_same = 4, /**< The register should be equal another one at the node. */
- arch_register_req_type_should_be_different = 8, /**< The register must be unequal to some other at the node. */
- arch_register_req_type_should_be_different_from_all = 16, /**< The register must be different from all in's at the node */
+ arch_register_req_type_none = 0, /**< No register requirement. */
+ arch_register_req_type_normal = 1, /**< All registers in the class are allowed. */
+ arch_register_req_type_limited = 2, /**< Only a real subset of the class is allowed. */
+ arch_register_req_type_should_be_same = 4, /**< The register should be equal to another one at the node. */
+ arch_register_req_type_must_be_different = 8, /**< The register must be unequal from some other at the node. */
} arch_register_req_type_t;
extern const arch_register_req_t *arch_no_register_req;
arch_irn_class_normal = 1 << 0,
arch_irn_class_spill = 1 << 1,
arch_irn_class_reload = 1 << 2,
- arch_irn_class_copy = 1 << 3,
- arch_irn_class_perm = 1 << 4,
- arch_irn_class_branch = 1 << 5,
- arch_irn_class_call = 1 << 6,
- arch_irn_class_const = 1 << 7,
+ arch_irn_class_remat = 1 << 3,
+ arch_irn_class_copy = 1 << 4,
+ arch_irn_class_perm = 1 << 5,
+ arch_irn_class_branch = 1 << 6,
+ arch_irn_class_call = 1 << 7,
arch_irn_class_load = 1 << 8,
arch_irn_class_store = 1 << 9,
arch_irn_class_stackparam = 1 << 10,
arch_irn_flags_rematerializable = 2, /**< This can be replicated instead of spilled/reloaded. */
arch_irn_flags_ignore = 4, /**< Ignore node during register allocation. */
arch_irn_flags_modify_sp = 8, /**< I modify the stack pointer. */
- arch_irn_flags_last = arch_irn_flags_modify_sp
+ arch_irn_flags_modify_flags = 16, /**< I modify flags. */
+ arch_irn_flags_last = arch_irn_flags_modify_flags
} arch_irn_flags_t;
/**
*/
extern const char *arch_irn_flag_str(arch_irn_flags_t flag);
-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);
+void arch_set_frame_offset(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);
+ir_entity *arch_get_frame_entity(const ir_node *irn);
+void arch_set_frame_entity(ir_node *irn, ir_entity *ent);
+int arch_get_sp_bias(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);
+int arch_get_op_estimated_cost(const ir_node *irn);
+arch_inverse_t *arch_get_inverse(const ir_node *irn, int i, arch_inverse_t *inverse, struct obstack *obstack);
+int arch_possible_memory_operand(const ir_node *irn, unsigned int i);
+void arch_perform_memory_operand(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
+ * @return A pointer to the register requirements. 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);
+const arch_register_req_t *arch_get_register_req(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);
+int arch_is_register_operand(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 pos The position 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);
+int arch_get_allocatable_regs(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);
+extern void arch_put_non_ignore_regs(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);
+int arch_reg_is_allocatable(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);
+const arch_register_class_t *arch_get_irn_reg_class(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);
+const arch_register_t *arch_get_irn_register(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);
+ const arch_register_t *reg);
/**
* Classify a node.
#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_has_reg_class(irn, pos, cls) \
+ ((cls) == arch_get_irn_reg_class(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))
+ (arch_irn_has_reg_class(irn, -1, cls) && !arch_irn_is(env, irn, ignore))
+
+/**
+ * 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.
+ */
+typedef const void *(arch_get_irn_ops_t)(const ir_node *irn);
/**
* Initialize the architecture environment struct.
* @param file_handle The file handle
* @return The environment.
*/
-extern arch_env_t *arch_env_init(arch_env_t *env, const arch_isa_if_t *isa,
+extern arch_env_t *arch_env_init(const arch_isa_if_t *isa,
FILE *file_handle, be_main_env_t *main_env);
-/**
- * Add a node handler to the environment.
- * @param env The environment.
- * @param handler A node handler.
- * @return The environment itself.
- */
-extern arch_env_t *arch_env_push_irn_handler(arch_env_t *env, const arch_irn_handler_t *handler);
-
-/**
- * Remove a node handler from the handler stack.
- * @param env The architecture environment.
- * @return The popped handler.
- */
-extern const arch_irn_handler_t *arch_env_pop_irn_handler(arch_env_t *env);
-
/**
* Register an instruction set architecture
*/
projects / libfirm / blobdiff