-#ifndef _FIRM_BEARCH_H
-#define _FIRM_BEARCH_H
-
-#include "firm_config.h"
-
-#ifdef WITH_LIBCORE
-#include <libcore/lc_opts.h>
-#endif
+/*
+ * 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 "belistsched.h"
-#include "beabi_t.h"
-#include "bearch_t.h"
-#include "be_t.h"
-
-struct _be_node_factory_t;
-
-typedef enum _arch_register_type_t {
- 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. */
- 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. */
- arch_register_type_ignore = 4, /**< Do not consider this register when allocating. */
+#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_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_env_t arch_env_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_caller_save = 1, /**< The register must be saved by the caller
+ 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. */
+ 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.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;
-/**
- * Convenience macro to check for register type.
- * @param req A pointer to register.
- * @param kind The kind of type to check for (see arch_register_type_t).
- * @return 1, If register is of given kind, 0 if not.
- */
-#define arch_register_type_is(reg, kind) \
- (((reg)->type & arch_register_type_ ## kind) != 0)
-
-/**
- * A register.
- */
-struct _arch_register_t {
- const char *name; /**< The name of the register. */
- const arch_register_class_t *reg_class; /**< The class the register belongs to. */
- int index; /**< The index of the register in the class. */
- arch_register_type_t type; /**< The type of the register. */
- void *data; /**< Custom data. */
-};
-
-static INLINE const arch_register_class_t *
-_arch_register_get_class(const arch_register_t *reg)
-{
- return reg->reg_class;
-}
-
-static INLINE int _arch_register_get_index(const arch_register_t *reg)
-{
- return reg->index;
-}
-
-#define arch_register_get_class(reg) _arch_register_get_class(reg)
-#define arch_register_get_index(reg) _arch_register_get_index(reg)
-#define arch_register_get_name(reg) ((reg)->name)
-
-/**
- * A class of registers.
- * Like general purpose or floating point.
- */
-struct _arch_register_class_t {
- const char *name; /**< The name of the register class. */
- int n_regs; /**< Number of registers in this class. */
- ir_mode *mode; /**< The mode of the register class. */
- const arch_register_t *regs; /**< The array of registers. */
-};
-
-/** return the number of registers in this register class */
-#define arch_register_class_n_regs(cls) ((cls)->n_regs)
-
-/** return the largest mode of this register class */
-#define arch_register_class_mode(cls) ((cls)->mode)
-
/**
* Put all registers in a class into a bitset.
* @param cls The class.
*/
extern int arch_register_class_put(const arch_register_class_t *cls, bitset_t *bs);
-static INLINE const arch_register_t *
-_arch_register_for_index(const arch_register_class_t *cls, int idx)
-{
- assert(0 <= idx && idx < cls->n_regs);
- return &cls->regs[idx];
-}
-
-#define arch_register_for_index(cls, idx) \
- _arch_register_for_index(cls, idx)
-
-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
+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 */
+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 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;
-/**
- * Convenience macro to check for set constraints.
- * @param req A pointer to register requirements.
- * @param kind The kind of constraint to check for (see arch_register_req_type_t).
- * @return 1, If the kind of constraint is present, 0 if not.
- */
-#define arch_register_req_is(req, kind) \
- (((req)->type & (arch_register_req_type_ ## kind)) != 0)
-
-/**
- * Expresses requirements to register allocation for an operand.
- */
-typedef struct _arch_register_req_t {
- arch_register_req_type_t type; /**< The type of the constraint. */
- const arch_register_class_t *cls; /**< The register class this constraint belongs to. */
-
- void (*limited)(void *limited_env, bitset_t *bs);
- /**< In case of the 'limited'
- constraint, this function
- must put all allowable
- registers in the bitset and
- return the number of registers
- in the bitset. */
-
- void *limited_env; /**< This must passed to limited. */
-
- ir_node *other_same; /**< The other which shall have the same reg
- as this one. (for case should_be_same). */
-
- ir_node *other_different; /**< The other node from which this one's register
- must be different (case must_be_different). */
-} arch_register_req_t;
+extern const arch_register_req_t *arch_no_register_req;
/**
* Format a register requirements information into a string.
* @param req The requirements structure to format.
* @return A pointer to buf.
*/
-extern char *arch_register_req_format(char *buf, size_t len, const arch_register_req_t *req);
-
+extern char *arch_register_req_format(char *buf, size_t len, const arch_register_req_t *req, const ir_node *node);
/**
* 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_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,
+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_copy = 1 << 3,
+ arch_irn_class_perm = 1 << 4,
+ arch_irn_class_branch = 1 << 5,
+ arch_irn_class_call = 1 << 6,
+ arch_irn_class_load = 1 << 7,
+ arch_irn_class_store = 1 << 8,
+ arch_irn_class_stackparam = 1 << 9,
} arch_irn_class_t;
-/**
- * An inverse operation returned by the backend
- */
-typedef struct _arch_inverse_t {
- int n; /**< count of nodes returned in nodes array */
- int costs; /**< costs of this remat */
-
- /**< nodes for this inverse operation. shall be in
- * schedule order. last element is the target value
- */
- ir_node **nodes;
-} arch_inverse_t;
-
/**
* Some flags describing a node in more detail.
*/
-typedef enum _arch_irn_flags_t {
+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_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);
-struct _arch_irn_ops_if_t {
-
- /**
- * Get the register requirements for a given operand.
- * @param self The self pointer.
- * @param irn The node.
- * @param pos The operand's position
- * (-1 for the result of the node, 0..n for the input
- * operands).
- * @return The register requirements for the selected operand.
- * The pointer returned is never NULL.
- */
- const arch_register_req_t *(*get_irn_reg_req)(const void *self,
- arch_register_req_t *req, const ir_node *irn, int pos);
-
- /**
- * Set the register for an output operand.
- * @param irn The node.
- * @param reg The register allocated to that operand.
- * @note If the operand is not a register operand,
- * the call is ignored.
- */
- void (*set_irn_reg)(const void *self, ir_node *irn, const arch_register_t *reg);
-
- /**
- * Get the register allocated for an output operand.
- * @param irn The node.
- * @return The register allocated at that operand. NULL, if
- * the operand was no register operand or
- * @c arch_register_invalid, if no register has yet been
- * allocated for this node.
- */
- const arch_register_t *(*get_irn_reg)(const void *self, const ir_node *irn);
-
- /**
- * Classify the node.
- * @param irn The node.
- * @return A classification.
- */
- arch_irn_class_t (*classify)(const void *self, const ir_node *irn);
-
- /**
- * Get the flags of a node.
- * @param self The irn ops themselves.
- * @param irn The node.
- * @return A set of flags.
- */
- arch_irn_flags_t (*get_flags)(const void *self, const ir_node *irn);
-
- /**
- * Get the entity on the stack frame this node depends on.
- * @param self The this pointer.
- * @param irn The node in question.
- * @return The entity on the stack frame or NULL, if the node does not has a stack frame entity.
- */
- entity *(*get_frame_entity)(const void *self, const ir_node *irn);
-
- /**
- * Set the entity on the stack frame this node depends on.
- * @param self The this pointer.
- * @param irn The node in question.
- * @param ent The entity to set
- */
- void (*set_frame_entity)(const void *self, ir_node *irn, entity *ent);
-
- /**
- * Set the offset of a node carrying an entity on the stack frame.
- * @param self The this pointer.
- * @param irn The node.
- * @param offset The offset of the node's stack frame entity.
- */
- void (*set_frame_offset)(const void *self, ir_node *irn, int offset);
-
- /**
- * Returns the delta of the stackpointer for nodes that increment or
- * decrement the stackpointer with a constant value. (push, pop
- * nodes on most architectures).
- * A positive value stands for an expanding stack area, a negative value for
- * a shrinking one.
- *
- * @param self The this pointer
- * @param irn The node
- * @return 0 if the stackpointer is not modified with a constant
- * value, otherwise the increment/decrement value
- */
- int (*get_sp_bias)(const void *self, const ir_node *irn);
-
- /**
- * Returns an inverse operation which yields the i-th argument
- * of the given node as result.
- *
- * @param self The this pointer.
- * @param irn The original operation
- * @param i Index of the argument we want the inverse operation to yield
- * @param inverse struct to be filled with the resulting inverse op
- * @param obstack The obstack to use for allocation of the returned nodes array
- * @return The inverse operation or NULL if operation invertible
- */
- arch_inverse_t *(*get_inverse)(const void *self, const ir_node *irn, int i, arch_inverse_t *inverse, struct obstack *obstack);
-
- /**
- * Get the estimated cycle count for @p irn.
- *
- * @param self The this pointer.
- * @param irn The node.
- *
- * @return The estimated cycle count for this operation
- */
- int (*get_op_estimated_cost)(const void *self, const ir_node *irn);
-
- /**
- * Asks the backend whether operand @p i of @p irn can be loaded form memory internally
- *
- * @param self The this pointer.
- * @param irn The node.
- * @param i Index of the argument we would like to know whether @p irn can load it form memory internally
- *
- * @return nonzero if argument can be loaded or zero otherwise
- */
- int (*possible_memory_operand)(const void *self, const ir_node *irn, unsigned int i);
-
- /**
- * Ask the backend to assimilate @p reload of operand @p i into @p irn.
- *
- * @param self The this pointer.
- * @param irn The node.
- * @param spill The spill.
- * @param i The position of the reload.
- */
- void (*perform_memory_operand)(const void *self, ir_node *irn, ir_node *spill, unsigned int i);
-};
-
-/**
- * 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 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 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, entity *ent);
+extern ir_entity *arch_get_frame_entity(const arch_env_t *env, const 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);
/**
* 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, arch_register_req_t *req,
- const ir_node *irn, int pos);
+arch_get_register_req(const arch_env_t *env, const ir_node *irn, int pos);
/**
* Check if an operand is a register operand.
*/
extern void arch_put_non_ignore_regs(const arch_env_t *env, const arch_register_class_t *cls, bitset_t *bs);
-/**
- * Return the number of registers in a register class which should not be
- * ignored by the register allocator.
- * @param env The architecture environment.
- * @param cls The register class to consider
- * @return The number of non-ignore registers in the register class
- */
-extern int arch_count_non_ignore_regs(const arch_env_t *env, const arch_register_class_t *cls);
-
/**
* Check, if a register is assignable to an operand of a node.
* @param env The architecture environment.
* 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,
#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))
+ ((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.
+ * 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.
*/
-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.
- */
-struct _arch_code_generator_if_t {
- /**
- * Initialize the code generator.
- * @param birg A backend IRG session.
- * @return A newly created code generator.
- */
- void *(*init)(const be_irg_t *birg);
-
- /**
- * Called before abi introduce.
- */
- void (*before_abi)(void *self);
-
- /**
- * Called, when the graph is being normalized.
- */
- void (*prepare_graph)(void *self);
-
- /**
- * Called before scheduling.
- */
- void (*before_sched)(void *self);
-
- /**
- * Called before register allocation.
- */
- void (*before_ra)(void *self);
-
- /**
- * Called after register allocation.
- */
- void (*after_ra)(void *self);
-
- /**
- * Called directly before done is called. This should be the last place
- * where the irg is modified.
- */
- void (*finish)(void *self);
-
- /**
- * Called after everything happened. This call should emit the final
- * assembly code but avoid changing the irg.
- * The code generator must also be de-allocated here.
- */
- void (*done)(void *self);
-};
-
-/**
- * helper macro: call function func from the code generator
- * if it's implemented.
- */
-#define _arch_cg_call(cg, func) \
-do { \
- if((cg)->impl->func) \
- (cg)->impl->func(cg); \
-} while(0)
-
-#define arch_code_generator_before_abi(cg) _arch_cg_call(cg, before_abi)
-#define arch_code_generator_prepare_graph(cg) _arch_cg_call(cg, prepare_graph)
-#define arch_code_generator_before_sched(cg) _arch_cg_call(cg, before_sched)
-#define arch_code_generator_before_ra(cg) _arch_cg_call(cg, before_ra)
-#define arch_code_generator_after_ra(cg) _arch_cg_call(cg, after_ra)
-#define arch_code_generator_finish(cg) _arch_cg_call(cg, finish)
-#define arch_code_generator_done(cg) _arch_cg_call(cg, done)
-
-/**
- * Code generator base class.
- */
-struct _arch_code_generator_t {
- const arch_code_generator_if_t *impl;
-};
-
-/**
- * ISA base class.
- */
-struct _arch_isa_t {
- const arch_isa_if_t *impl;
- const arch_register_t *sp; /** The stack pointer register. */
- const arch_register_t *bp; /** The base pointer register. */
- const int stack_dir; /** -1 for decreasing, 1 for increasing. */
-};
-
-#define arch_isa_stack_dir(isa) ((isa)->stack_dir)
-#define arch_isa_sp(isa) ((isa)->sp)
-#define arch_isa_bp(isa) ((isa)->bp)
-
-/**
- * Architecture interface.
- */
-struct _arch_isa_if_t {
-
- /**
- * Initialize the isa interface.
- * @param file_handle the file handle to write the output to
- * @return a new isa instance
- */
- void *(*init)(FILE *file_handle);
-
- /**
- * Free the isa instance.
- */
- void (*done)(void *self);
-
- /**
- * Get the the number of register classes in the isa.
- * @return The number of register classes.
- */
- int (*get_n_reg_class)(const void *self);
-
- /**
- * Get the i-th register class.
- * @param i The number of the register class.
- * @return The register class.
- */
- const arch_register_class_t *(*get_reg_class)(const void *self, int i);
-
- /**
- * Get the register class which shall be used to store a value of a given mode.
- * @param self The this pointer.
- * @param mode The mode in question.
- * @return A register class which can hold values of the given mode.
- */
- const arch_register_class_t *(*get_reg_class_for_mode)(const void *self, const ir_mode *mode);
-
- /**
- * Get the ABI restrictions for procedure calls.
- * @param self The this pointer.
- * @param method_type The type of the method (procedure) in question.
- * @param p The array of parameter locations to be filled.
- */
- void (*get_call_abi)(const void *self, ir_type *method_type, be_abi_call_t *abi);
-
- /**
- * The irn handler for this architecture.
- * The irn handler is registered by the Firm back end
- * when the architecture is initialized.
- * (May be NULL).
- */
- const arch_irn_handler_t *(*get_irn_handler)(const void *self);
-
- /**
- * Get the code generator interface.
- * @param self The this pointer.
- * @return Some code generator interface.
- */
- const arch_code_generator_if_t *(*get_code_generator_if)(void *self);
-
- /**
- * Get the list scheduler to use.
- * @param self The isa object.
- * @return The list scheduler selector.
- */
- const list_sched_selector_t *(*get_list_sched_selector)(const void *self);
-
- /**
- * Get the necessary alignment for storing a register of given class.
- * @param self The isa object.
- * @param cls The register class.
- * @return The alignment in bytes.
- */
- int (*get_reg_class_alignment)(const void *self, const arch_register_class_t *cls);
-
- /**
- * A "static" function, returns the frontend settings
- * needed for this backend.
- */
- const backend_params *(*get_params)(void);
-
-#ifdef WITH_LIBCORE
- /**
- * Register command line options for this backend.
- * @param grp The root group.
- */
- void (*register_options)(lc_opt_entry_t *grp);
-#endif
-};
-
-#define arch_isa_get_n_reg_class(isa) ((isa)->impl->get_n_reg_class(isa))
-#define arch_isa_get_reg_class(isa,i) ((isa)->impl->get_reg_class(isa, i))
-#define arch_isa_get_irn_handler(isa) ((isa)->impl->get_irn_handler(isa))
-#define arch_isa_get_call_abi(isa,tp,abi) ((isa)->impl->get_call_abi((isa), (tp), (abi)))
-#define arch_isa_get_reg_class_for_mode(isa,mode) ((isa)->impl->get_reg_class_for_mode((isa), (mode)))
-#define arch_isa_make_code_generator(isa,irg) ((isa)->impl->make_code_generator((isa), (irg)))
-#define arch_isa_get_reg_class_alignment(isa, cls) ((isa)->impl->get_reg_class_alignment((isa), (cls)))
-
-#define ARCH_MAX_HANDLERS 8
-
-/**
- * Environment for the architecture infrastructure.
- * Keep this everywhere you're going.
- */
-struct _arch_env_t {
- const struct _be_node_factory_t *node_factory; /**< The node factory for be nodes. */
- arch_isa_t *isa; /**< The isa about which everything is. */
-
- arch_irn_handler_t const *handlers[ARCH_MAX_HANDLERS]; /**< The handlers are organized as
- a stack. */
-
- int handlers_tos; /**< The stack pointer of the handler
- stack. */
-};
-
-/**
- * Get the isa of an arch environment.
- * @param env The environment.
- * @return The isa with which the env was initialized with.
- */
-#define arch_env_get_isa(env) ((env)->isa)
+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, FILE *file_handle);
+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.
+ * Register an instruction set architecture
*/
-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);
-
+void be_register_isa_if(const char *name, const arch_isa_if_t *isa);
-#endif /* _FIRM_BEARCH_H */
+#endif /* FIRM_BE_BEARCH_H */
projects / libfirm / blobdiff