X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fir%2Firop.h;h=6540751c55d7de6ff969581d2a45f1c256f5d0bd;hb=18ad59ceaef42a2a6142ebe5661c5b83f627eabb;hp=51923a98d492282ab4f6bb7b808acce3360ea969;hpb=6474dc8e951a231d0bb6c3face8fd75449807bf1;p=libfirm diff --git a/ir/ir/irop.h b/ir/ir/irop.h index 51923a98d..6540751c5 100644 --- a/ir/ir/irop.h +++ b/ir/ir/irop.h @@ -11,49 +11,95 @@ */ /** -* @file irop.h -* -* Operators of firm nodes. -* -* @author Christian Schaefer -* -* This module specifies the opcodes possible for ir nodes. Their -* definition is close to the operations specified in UKA Tech-Report -* 1999-14 -*/ - -# ifndef _IROP_H_ -# define _IROP_H_ - -# include "ident.h" - -/** the opcodes */ + * @file irop.h + * + * Operators of firm nodes. + * + * @author Christian Schaefer + * + * This module specifies the opcodes possible for ir nodes. Their + * definition is close to the operations specified in UKA Tech-Report + * 1999-14 + */ +#ifndef _FIRM_IR_IROP_H_ +#define _FIRM_IR_IROP_H_ + +#include "firm_types.h" + +#include +#include "ident.h" + +/** The allowed parities */ +typedef enum { + oparity_invalid = 0, + oparity_unary, /**< an unary operator -- considering 'numeric' arguments. */ + oparity_binary, /**< an binary operator -- considering 'numeric' arguments.*/ + oparity_trinary, /**< an trinary operator -- considering 'numeric' arguments.*/ + oparity_zero, /**< no operators, as e.g. Const. */ + oparity_variable, /**< arity not fixed by opcode, but statically + known. E.g., number of arguments to call. */ + oparity_dynamic, /**< arity depends on state of firm representation. + Can change by optimizations... + We must allocate a dynamic in array for the node! */ + oparity_any /**< other arity */ +} op_arity; + + +/** The irop flags */ +typedef enum { + irop_flag_none = 0x00000000, /**< nothing */ + irop_flag_labeled = 0x00000001, /**< if set, Output edge labels on in-edges in vcg graph */ + irop_flag_commutative = 0x00000002, /**< operation is commutative */ + irop_flag_cfopcode = 0x00000004, /**< is a control flow operation */ + irop_flag_ip_cfopcode = 0x00000008, /**< operation manipulates interprocedural control flow */ + irop_flag_fragile = 0x00000010, /**< set if the operation can change the control flow because + of an exception */ + irop_flag_forking = 0x00000020, /**< the operation is a forking control flow */ + irop_flag_highlevel = 0x00000040, /**< the operation is a pure high-level one and can be + skipped in low-level optimizations */ + irop_flag_constlike = 0x00000080, /**< the operation has no arguments and is some + kind of a constant */ + irop_flag_always_opt = 0x00000100, /**< this operation must always be optimized */ + irop_flag_keep = 0x00000200, /**< this operation can be kept in End's keep-alive list */ + irop_flag_machine = 0x00000400, /**< this operation is a machine operation */ + irop_flag_machine_op = 0x00000800, /**< this operation is a machine operand */ + irop_flag_user = 0x00001000 /**< this flag and all higher one are free for machine user */ +} irop_flags; + +/** The opcodes of the libFirm predefined operations. */ typedef enum { iro_Block, - iro_Start, iro_End, iro_Jmp, iro_Cond, iro_Return, iro_Raise, + iro_Start, iro_End, iro_Jmp, iro_IJmp, iro_Cond, iro_Return, iro_Const, iro_SymConst, - iro_Sel, iro_InstOf, + iro_Sel, iro_Call, iro_Add, iro_Sub, iro_Minus, iro_Mul, iro_Quot, iro_DivMod, iro_Div, iro_Mod, iro_Abs, iro_And, iro_Or, iro_Eor, iro_Not, iro_Cmp, iro_Shl, iro_Shr, iro_Shrs, iro_Rot, iro_Conv, iro_Cast, + iro_Carry, iro_Borrow, iro_Phi, iro_Load, iro_Store, iro_Alloc, iro_Free, iro_Sync, iro_Proj, iro_Tuple, iro_Id, iro_Bad, iro_Confirm, - iro_Unknown, iro_Filter, iro_Break, iro_CallBegin, iro_EndReg, iro_EndExcept + iro_Unknown, iro_Filter, iro_Break, iro_CallBegin, iro_EndReg, iro_EndExcept, + iro_NoMem, iro_Mux, iro_Psi, iro_CopyB, + iro_InstOf, iro_Raise, iro_Bound, + iro_Pin, + iro_MaxOpcode } opcode; +#ifndef _IR_OP_TYPEDEF_ +#define _IR_OP_TYPEDEF_ typedef struct ir_op ir_op; +#endif extern ir_op *op_Block; ir_op *get_op_Block (void); extern ir_op *op_Start; ir_op *get_op_Start (void); extern ir_op *op_End; ir_op *get_op_End (void); extern ir_op *op_Jmp; ir_op *get_op_Jmp (void); +extern ir_op *op_IJmp; ir_op *get_op_IJmp (void); extern ir_op *op_Cond; ir_op *get_op_Cond (void); extern ir_op *op_Return; ir_op *get_op_Return (void); -extern ir_op *op_Raise; ir_op *get_op_Raise (void); extern ir_op *op_Sel; ir_op *get_op_Sel (void); -extern ir_op *op_InstOf; ir_op *get_op_InstOf (void); extern ir_op *op_Const; ir_op *get_op_Const (void); extern ir_op *op_SymConst; ir_op *get_op_SymConst (void); @@ -79,6 +125,8 @@ extern ir_op *op_Shrs; ir_op *get_op_Shrs (void); extern ir_op *op_Rot; ir_op *get_op_Rot (void); extern ir_op *op_Conv; ir_op *get_op_Conv (void); extern ir_op *op_Cast; ir_op *get_op_Cast (void); +extern ir_op *op_Carry; ir_op *get_op_Carry (void); +extern ir_op *op_Borrow; ir_op *get_op_Borrow (void); extern ir_op *op_Phi; ir_op *get_op_Phi (void); @@ -102,37 +150,215 @@ extern ir_op *op_CallBegin; ir_op *get_op_CallBegin (void); extern ir_op *op_EndReg; ir_op *get_op_EndReg (void); extern ir_op *op_EndExcept; ir_op *get_op_EndExcept (void); +extern ir_op *op_NoMem; ir_op *get_op_NoMem (void); +extern ir_op *op_Mux; ir_op *get_op_Mux (void); +extern ir_op *op_Psi; ir_op *get_op_Psi (void); +extern ir_op *op_CopyB; ir_op *get_op_CopyB (void); + +extern ir_op *op_InstOf; ir_op *get_op_InstOf (void); +extern ir_op *op_Raise; ir_op *get_op_Raise (void); +extern ir_op *op_Bound; ir_op *get_op_Bound (void); + +extern ir_op *op_Pin; ir_op *get_op_Pin (void); /** Returns the ident for the opcode name */ -ident *get_op_ident (ir_op *op); +ident *get_op_ident(const ir_op *op); + /** Returns the string for the opcode. */ -const char *get_op_name (ir_op *op); +const char *get_op_name(const ir_op *op); /** Returns the enum for the opcode */ -opcode get_op_code (ir_op *op); +opcode get_op_code(const ir_op *op); -/** pinned states */ +/** op_pin_state_pinned states */ typedef enum { - floats = 0, /**< Nodes of this opcode can be placed in any basic block. */ - pinned /**< Nodes must remain in this basic block. */ -} op_pinned; + op_pin_state_floats = 0, /**< Nodes of this opcode can be placed in any basic block. */ + op_pin_state_pinned, /**< Nodes must remain in this basic block. */ + op_pin_state_exc_pinned, /**< Node must be remain in this basic block if it can throw an + exception, else can float. Used internally. */ + op_pin_state_mem_pinned /**< Node must be remain in this basic block if it can throw an + exception or uses memory, else can float. Used internally. */ +} op_pin_state; + +const char *get_op_pin_state_name(op_pin_state s); -/** gets pinned state of an opcoe */ -op_pinned get_op_pinned (ir_op *op); +/** gets pinned state of an opcode */ +op_pin_state get_op_pinned(const ir_op *op); /** Sets pinned in the opcode. Setting it to floating has no effect for Block, Phi and control flow nodes. */ -void set_op_pinned(ir_op *op, op_pinned pinned); +void set_op_pinned(ir_op *op, op_pin_state pinned); + +/** Returns the next free IR opcode number, allows to register user ops */ +unsigned get_next_ir_opcode(void); + +/** Returns the next free n IR opcode number, allows to register a bunch of user ops */ +unsigned get_next_ir_opcodes(unsigned num); -/** Returns true if op is one of Start, End, Jmp, Cond, Return, Raise or Bad. */ -int is_cfopcode(ir_op *op); +/** + * A generic function pointer. + */ +typedef void (*op_func)(void); + +/** The NULL-function. */ +#define NULL_FUNC ((generic_func)(NULL)) + +/** + * Returns the generic function pointer from an ir operation. + */ +op_func get_generic_function_ptr(const ir_op *op); + +/** + * Store a generic function pointer into an ir operation. + */ +void set_generic_function_ptr(ir_op *op, op_func func); + +/** + * The compute value operation. + * This operation evaluates an IR node into a tarval if possible, + * returning tarval_bad otherwise. + */ +typedef tarval *(*computed_value_func)(ir_node *self); + +/** + * The equivalent node operation. + * This operation returns an equivalent node for the input node. + * It does not create new nodes. It is therefore safe to free self + * if the node returned is not self. + * If a node returns a Tuple we can not just skip it. If the size of the + * in array fits, we transform n into a tuple (e.g., possible for Div). + */ +typedef ir_node *(*equivalent_node_func)(ir_node *self); + +/** + * The transform node operation. + * This operation tries several [inplace] [optimizing] transformations + * and returns an equivalent node. + * The difference to equivalent_node() is that these + * transformations _do_ generate new nodes, and thus the old node must + * not be freed even if the equivalent node isn't the old one. + */ +typedef ir_node *(*transform_node_func)(ir_node *self); -/** Returns true if the operation manipulates interprocedural control flow: - CallBegin, EndReg, EndExcept */ -int is_ip_cfopcode(ir_op *op); +/** + * The node attribute compare operation. + * Compares the nodes attributes of two nodes of identical opcode + * and returns 0 if the attributes are identical, 1 if they differ. + */ +typedef int (*node_cmp_attr_func)(ir_node *a, ir_node *b); + +/** + * The reassociation operation. + * Called from a walker. Returns non-zero if + * a reassociation rule was applied. + * The pointer n is set to the newly created node, if some reassociation + * was applied. + */ +typedef int (*reassociate_func)(ir_node **n); + +/** + * The copy attribute operation. + * Copy the node attributes from a 'old' node to a 'new' one. + */ +typedef void (*copy_attr_func)(const ir_node *old_node, ir_node *new_node); + +/** + * The get_type operation. + * Return the type of the node self. + */ +typedef ir_type *(*get_type_func)(ir_node *self); + +/** + * The get_type_attr operation. Used to traverse all types that can be + * accessed from an ir_graph. + * Return the type attribute of the node self. + */ +typedef ir_type *(*get_type_attr_func)(ir_node *self); + +/** + * The get_entity_attr operation. Used to traverse all entities that can be + * accessed from an ir_graph. + * Return the entity attribute of the node self. + */ +typedef entity *(*get_entity_attr_func)(ir_node *self); + +/** + * The verify_node operation. + * Return non-zero if the node verification is ok, else 0. + * Depending on the node verification settings, may even assert. + * + * @see do_node_verification() + */ +typedef int (*verify_node_func)(ir_node *self, ir_graph *irg); + +/** + * The verify_node operation for Proj(X). + * Return non-zero if the node verification is ok, else 0. + * Depending on the node verification settings, may even assert. + * + * @see do_node_verification() + */ +typedef int (*verify_proj_node_func)(ir_node *self, ir_node *proj); + +/** + * Reasons to call the dump_node operation: + */ +typedef enum { + dump_node_opcode_txt, /**< dump the opcode */ + dump_node_mode_txt, /**< dump the mode */ + dump_node_nodeattr_txt, /**< dump node attributes to be shown in the label */ + dump_node_info_txt /**< dump node attributes into info1 */ +} dump_reason_t; + +/** + * The dump_node operation. + * Writes several informations requested by reason to + * an output file + */ +typedef int (*dump_node_func)(ir_node *self, FILE *F, dump_reason_t reason); + +/** + * io_op Operations. + */ +typedef struct { + computed_value_func computed_value; /**< evaluates a node into a tarval if possible. */ + equivalent_node_func equivalent_node; /**< optimizes the node by returning an equivalent one. */ + transform_node_func transform_node; /**< optimizes the node by transforming it. */ + node_cmp_attr_func node_cmp_attr; /**< compares two node attributes. */ + reassociate_func reassociate; /**< reassociate a tree */ + copy_attr_func copy_attr; /**< copy node attributes */ + get_type_func get_type; /**< return the type of a node */ + get_type_attr_func get_type_attr; /**< return the type attribute of a node */ + get_entity_attr_func get_entity_attr; /**< return the entity attribute of a node */ + verify_node_func verify_node; /**< verify the node */ + verify_proj_node_func verify_proj_node; /**< verify the Proj node */ + dump_node_func dump_node; /**< dump a node */ + op_func generic; /**< a generic function */ +} ir_op_ops; + +/** + * Creates a new ir operation. + * + * @param code the opcode, one of type \c opcode + * @param name the printable name of this opcode + * @param p whether operations of this opcode are op_pin_state_pinned or floating + * @param flags a bitmask of irop_flags describing the behavior of the ir operation + * @param opar the parity of this ir operation + * @param op_index if the parity is oparity_unary, oparity_binary or oparity_trinary the index + * of the left operand + * @param ops operations for this opcode, iff NULL default operations are used + * @param attr_size attribute size for this ir operation + * + * @return The generated ir operation. + * + * This function can create all standard Firm opcode as well as new ones. + * The behavior of new opcode depends on the operations \c ops and the \c flags. + */ +ir_op * new_ir_op(opcode code, const char *name, op_pin_state p, + unsigned flags, op_arity opar, int op_index, size_t attr_size, + const ir_op_ops *ops); -/** Returns the attribute size of nodes of this opcode. - @note Use not encouraged, internal feature. */ -int get_op_attr_size (ir_op *op); +/** Returns the ir_op_ops of an ir_op. */ +const ir_op_ops *get_op_ops(const ir_op *op); -# endif /* _IROP_H_ */ +#endif /* _FIRM_IR_IROP_H_ */