#include "firm_config.h"
+#ifdef WITH_LIBCORE
+#include <libcore/lc_opts.h>
+#endif
+
#include "irnode.h"
#include "irmode.h"
#include "list.h"
#include "ident.h"
-typedef struct _arch_register_class_t arch_register_class_t;
-typedef struct _arch_register_t arch_register_t;
-typedef struct _arch_enum_t arch_enum_t;
-typedef struct _arch_enum_member_t arch_enum_member_t;
-typedef struct _arch_isa_if_t arch_isa_if_t;
-typedef struct _arch_env_t arch_env_t;
-typedef struct _arch_irn_ops_t arch_irn_ops_t;
-typedef struct _arch_irn_handler_t arch_irn_handler_t;
+#include "belistsched.h"
+
+typedef struct _arch_register_class_t arch_register_class_t;
+typedef struct _arch_register_t arch_register_t;
+typedef struct _arch_enum_t arch_enum_t;
+typedef struct _arch_enum_member_t arch_enum_member_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_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;
struct _be_node_factory_t;
arch_register_req_type_limited = 2, /**< Only a real subset of
the class is allowed. */
- arch_register_req_type_equal = 4, /**< The register must equal
- another one at the node. */
+ arch_register_req_type_should_be_same = 4, /**< The register should be equal
+ another one at the node. */
- arch_register_req_type_unequal = 8, /**< The register must be unequal
- to some other 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_pair = 16 /**< The register is part of a
- register pair. */
} arch_register_req_type_t;
#define arch_register_req_is_constr(x) \
arch_irn_flags_rematerializable = 2
} arch_irn_flags_t;
-/*
- * Some words about positions and indices:
- *
- * Firm has the policy "One node per value", that's why there are
- * Proj nodes. This view has its advantages, but in a backend
- * setting where we talk about instructions (which can also have
- * multiple results and not a single Tuple value) this is sometimes
- * hard.
- *
- * Each node representing an instruction must provide information
- * about the kind of its operands (where operands mean both input
- * and output operands). Such an operand is addressed with a position
- * which is infact a tuple {in, out} x N. The fact that a position
- * is an input/output operand is encoded in the sign, so input operands
- * go from 0..n-1 and output operands from -1..-m if the
- * instruction has n input and m output operands.
- */
-
-#define _BEARCH_TRANSFORM_INDEX(cmp, index) ((index) cmp 0 ? -((index) + 1) : (index))
-
-/**
- * Make an in position from an index.
- * @param index The index.
- * @return The position representing the index as an in operand.
- */
-#define arch_pos_make_in(index) _BEARCH_TRANSFORM_INDEX(<, index)
-
-/**
- * Make an out position from an index.
- * @param index The index.
- * @return The position representing the index as an out operand.
- */
-#define arch_pos_make_out(index) _BEARCH_TRANSFORM_INDEX(>=, index)
-
-/**
- * Check, if a position denotes an input operand.
- * @param pos The position.
- * @return 1, if the position denotes an input operand 0 if not.
- */
-#define arch_pos_is_in(pos) ((pos) >= 0)
-
-/**
- * Check, if a position denotes an output operand.
- * @param pos The position.
- * @return 1, if the position denotes an output operand 0 if not.
- */
-#define arch_pos_is_out(pos) (!arch_pos_is_in(pos))
-
-/**
- * Get the index of a position.
- * @param pos The position.
- * @return The index of the position.
- */
-#define arch_pos_get_index(pos) _BEARCH_TRANSFORM_INDEX(<, pos)
-
struct _arch_irn_ops_t {
/**
* Get the register requirements for a given operand.
* @param self The self pointer.
* @param irn The node.
- * @param pos The operand's position.
+ * @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 arch_irn_ops_t *self,
- arch_register_req_t *req,
- const ir_node *irn, int pos);
-
- /**
- * Get the number of operands of a node.
- * @param irn The node.
- * @param in_out Denotes wither input (a number >= 0) or
- * output (a number < 0).
- * @return The number of operands for either in, or output.
- */
- int (*get_n_operands)(const arch_irn_ops_t *self, const ir_node *irn, int in_out);
+ arch_register_req_t *req, const ir_node *irn, int pos);
/**
* Set the register for an output operand.
* @param irn The node.
- * @param pos The position of the output operand.
* @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 arch_irn_ops_t *self, ir_node *irn,
- int idx, const arch_register_t *reg);
+ void (*set_irn_reg)(const arch_irn_ops_t *self, ir_node *irn, const arch_register_t *reg);
/**
* Get the register allocated for an output operand.
* @param irn The node.
- * @param pos The index of the output operand.
* @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 arch_irn_ops_t *self,
- const ir_node *irn, int idx);
+ const arch_register_t *(*get_irn_reg)(const arch_irn_ops_t *self, const ir_node *irn);
/**
* Classify the node.
};
-extern int
-arch_get_n_operands(const arch_env_t *env, const ir_node *irm, int in_out);
-
/**
* Get the register requirements for a node.
* @param env The architecture environment.
/**
* Get the register allocated at a certain output operand of a node.
- * @param env The arch nvironment.
+ * @param env The arch environment.
* @param irn The node.
- * @param idx The index of the output operand.
* @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, int idx);
+arch_get_irn_register(const arch_env_t *env, const ir_node *irn);
/**
* Set the register for a certain output operand.
* @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, int idx, const arch_register_t *reg);
+extern void arch_set_irn_register(const arch_env_t *env, ir_node *irn,
+ const arch_register_t *reg);
/**
* Classify a node.
};
+/**
+ * The code generator.
+ */
+struct _arch_code_generator_if_t {
+
+
+ /**
+ * Initialize the code generator.
+ * @param file The file to dump to.
+ * @param irg The function to generate code for.
+ * @param env The architecture environment.
+ * @return A newly created code generator.
+ */
+ void *(*init)(FILE *file, ir_graph *irg, const arch_env_t *env);
+
+ /**
+ * 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 everything happened.
+ * The code generator must also be de-allocated here.
+ */
+ void (*done)(void *self);
+
+};
+
+#define _arch_cg_call(cg, func) \
+do { \
+ if((cg)->impl->func) \
+ (cg)->impl->func(cg); \
+} while(0)
+
+#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_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;
+};
+
/**
* Architecture interface.
*/
struct _arch_isa_if_t {
+#ifdef WITH_LIBCORE
+ void (*register_options)(lc_opt_entry_t *grp);
+#endif
+
/**
* Initialize the isa interface.
*/
- void (*init)(void);
+ void *(*init)(void);
+
+ /**
+ * 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)(void);
+ 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)(int i);
-
- /**
- * Prepare a graph.
- * This function is called each time, the back end starts running over
- * a graph.
- * @param irg The graph.
- */
- void (*prepare_graph)(ir_graph *irg);
+ const arch_register_class_t *(*get_reg_class)(const void *self, int i);
/**
* The irn handler for this architecture.
* when the architecture is initialized.
* (May be NULL).
*/
- const arch_irn_handler_t *irn_handler;
+ 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)(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);
};
+#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_make_code_generator(isa,irg) ((isa)->impl->make_code_generator(isa, irg))
+
#define ARCH_MAX_HANDLERS 8
/**
*/
struct _arch_env_t {
const struct _be_node_factory_t *node_factory; /**< The node factory for be nodes. */
- const arch_isa_if_t *isa; /**< The isa about which everything is. */
+ 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. */
projects / libfirm / blobdiff