X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbearch.h;h=db991331db4f632fa70e6b1121e7c17d36c7a852;hb=429d687f06baeeb63d04750f846d39e55fb62343;hp=a041ebce507a89f98c168a8909fcd816301abe1f;hpb=205396c4f4f5abe7abd6dc2350c8c398a7623afc;p=libfirm diff --git a/ir/be/bearch.h b/ir/be/bearch.h index a041ebce5..db991331d 100644 --- a/ir/be/bearch.h +++ b/ir/be/bearch.h @@ -1,9 +1,35 @@ -#ifndef FIRM_BEARCH_H -#define FIRM_BEARCH_H +/* + * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved. + * + * This file is part of libFirm. + * + * This file may be distributed and/or modified under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation and appearing in the file LICENSE.GPL included in the + * packaging of this file. + * + * Licensees holding valid libFirm Professional Edition licenses may use + * this file in accordance with the libFirm Commercial License. + * Agreement provided with the Software. + * + * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE + * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE. + */ + +/** + * @file + * @brief Processor architecture specification. + * @author Sebastian Hack + * @version $Id$ + */ +#ifndef FIRM_BE_BEARCH_H +#define FIRM_BE_BEARCH_H #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; @@ -11,55 +37,42 @@ typedef struct arch_register_t arch_register_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_memory, - arch_operand_type_register, - arch_operand_type_immediate, - arch_operand_type_symconst, - arch_operand_type_last -} arch_operand_type_t; - /** * 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; @@ -77,167 +90,120 @@ extern char *arch_register_req_format(char *buf, size_t len, const arch_register * Certain node classes which are relevant for the register allocator. */ typedef enum arch_irn_class_t { - arch_irn_class_normal = 1 << 0, - arch_irn_class_spill = 1 << 1, - arch_irn_class_reload = 1 << 2, + arch_irn_class_spill = 1 << 0, + arch_irn_class_reload = 1 << 1, + arch_irn_class_remat = 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_load = 1 << 8, - arch_irn_class_store = 1 << 9, - arch_irn_class_stackparam = 1 << 10, + arch_irn_class_branch = 1 << 5 } arch_irn_class_t; /** * Some flags describing a node in more detail. */ typedef enum arch_irn_flags_t { - arch_irn_flags_none = 0, /**< Node flags. */ - arch_irn_flags_dont_spill = 1, /**< This must not be spilled. */ - 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_none = 0, /**< Node flags. */ + arch_irn_flags_dont_spill = 1U << 0, /**< This must not be spilled. */ + arch_irn_flags_rematerializable = 1U << 1, /**< This can be replicated instead of spilled/reloaded. */ + arch_irn_flags_ignore = 1U << 2, /**< Ignore node during register allocation. */ + arch_irn_flags_modify_sp = 1U << 3, /**< I modify the stack pointer. */ + arch_irn_flags_modify_flags = 1U << 4 /**< I modify flags. */ } arch_irn_flags_t; -/** - * Get the string representation of a flag. - * This functions does not handle or'ed bitmasks of flags. - * @param flag The flag. - * @return The flag as a string. - */ -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 not - * 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); - -/** - * 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); +#define arch_get_register_req_out(irn) arch_get_register_req(irn, -1) /** * 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); + +#define arch_reg_out_is_allocatable(irn, reg) arch_reg_is_allocatable(irn, -1, 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); + +#define arch_get_irn_reg_class_out(irn) arch_get_irn_reg_class(irn, -1) /** * 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); +void arch_set_irn_register(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); +arch_irn_class_t arch_irn_classify(const ir_node *irn); -#define arch_irn_class_is(env, irn, irn_class) ((arch_irn_classify(env, irn) & arch_irn_class_ ## irn_class) != 0) +#define arch_irn_class_is(irn, irn_class) ((arch_irn_classify(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); +arch_irn_flags_t arch_irn_get_flags(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_is(irn, flag) ((arch_irn_get_flags(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(cls, irn) \ + (arch_get_irn_reg_class_out(irn) == (cls) && !arch_irn_is(irn, ignore)) -#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)) +/** + * 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. @@ -245,27 +211,12 @@ extern arch_irn_flags_t arch_irn_get_flags(const arch_env_t *env, const ir_node * @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 */ void be_register_isa_if(const char *name, const arch_isa_if_t *isa); -#endif +#endif /* FIRM_BE_BEARCH_H */