/*
-* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
-* All rights reserved.
-*/
+ * Copyright (C) 1995-2007 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 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
-*/
+ * @file
+ * @brief Representation of opcode of intermediate operation.
+ * @author Christian Schaefer, Goetz Lindenmaier, Michael Beck
+ * @version $Id$
+ * @summary
+ * Operators of firm nodes.
+ *
+ * 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
-/* $Id$ */
+#include "firm_types.h"
-# ifndef _IROP_H_
-# define _IROP_H_
+#include <stdio.h>
+#include "ident.h"
-# 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, /**< This operation is commutative. */
+ irop_flag_cfopcode = 0x00000004, /**< This operation is a control flow operation. */
+ irop_flag_ip_cfopcode = 0x00000008, /**< This operation manipulates the interprocedural control flow. */
+ irop_flag_fragile = 0x00000010, /**< Set if the operation can change the control flow because
+ of an exception. */
+ irop_flag_forking = 0x00000020, /**< Forking control flow at this operation. */
+ irop_flag_highlevel = 0x00000040, /**< This operation is a pure high-level one and can be
+ skipped in low-level optimizations. */
+ irop_flag_constlike = 0x00000080, /**< This 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_start_block = 0x00000400, /**< This operation is always placed in the Start block. */
+ irop_flag_machine = 0x00000800, /**< This operation is a machine operation. */
+ irop_flag_machine_op = 0x00001000, /**< This operation is a machine operand. */
+ irop_flag_user = 0x00002000 /**< This flag and all higher ones are free for machine user. */
+} irop_flags;
-/** the opcodes */
+/** 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_Unknown, iro_Filter, iro_Break, iro_CallBegin, iro_EndReg, iro_EndExcept
-} opcode;
+ iro_Proj, iro_Tuple, iro_Id, iro_Bad, iro_Confirm,
+ 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_ASM,
+ iro_MaxOpcode
+} ir_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);
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);
extern ir_op *op_Proj; ir_op *get_op_Proj (void);
extern ir_op *op_Id; ir_op *get_op_Id (void);
extern ir_op *op_Bad; ir_op *get_op_Bad (void);
+extern ir_op *op_Confirm; ir_op *get_op_Confirm (void);
extern ir_op *op_Unknown; ir_op *get_op_Unknown (void);
extern ir_op *op_Filter; ir_op *get_op_Filter (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);
+
+extern ir_op *op_ASM; ir_op *get_op_ASM (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);
+ir_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 = 1, /**< 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 true if op is one of Start, End, Jmp, Cond, Return, Raise or Bad. */
-int is_cfopcode(ir_op *op);
+/** Returns the next free IR opcode number, allows to register user ops */
+unsigned get_next_ir_opcode(void);
-/** Returns true if the operation manipulates interprocedural control flow:
- CallBegin, EndReg, EndExcept */
-int is_ip_cfopcode(ir_op *op);
+/** Returns the next free n IR opcode number, allows to register a bunch of user ops */
+unsigned get_next_ir_opcodes(unsigned num);
+
+/**
+ * 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);
+
+/**
+ * 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 ir_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(ir_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