/*
- * 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_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
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;
/**
* 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_should_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_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_load = 1 << 7,
+ arch_irn_class_store = 1 << 8,
+ arch_irn_class_stackparam = 1 << 9,
} arch_irn_class_t;
/**
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;
/**