jdk8-mips64-public/hotspot: src/share/vm/adlc/formssel.hpp@98cb887364d3 (annotated)

src/share/vm/adlc/formssel.hpp@98cb887364d3 (annotated)

src/share/vm/adlc/formssel.hpp

Fri, 27 Feb 2009 13:27:09 -0800

author: twisti
date: Fri, 27 Feb 2009 13:27:09 -0800
changeset 1040: 98cb887364d3
parent 1038: dbbe28fc66b5
child 1290: f9094a5e1c8a
permissions: -rw-r--r--

6810672: Comment typos
Summary: I have collected some typos I have found while looking at the code.
Reviewed-by: kvn, never

 /*
  * Copyright 1998-2009 Sun Microsystems, Inc.  All Rights Reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  * CA 95054 USA or visit www.sun.com if you need additional information or
  * have any questions.
  *
  */
 // FORMSSEL.HPP - ADL Parser Instruction Selection Forms Classes
 // Class List
 class Form;
 class InstructForm;
 class MachNodeForm;
 class OperandForm;
 class OpClassForm;
 class AttributeForm;
 class RegisterForm;
 class PipelineForm;
 class SourceForm;
 class EncodeForm;
 class Component;
 class Constraint;
 class Predicate;
 class MatchRule;
 class Attribute;
 class Effect;
 class ExpandRule;
 class RewriteRule;
 class ConstructRule;
 class FormatRule;
 class Peephole;
 class EncClass;
 class Interface;
 class RegInterface;
 class ConstInterface;
 class MemInterface;
 class CondInterface;
 class Opcode;
 class InsEncode;
 class RegDef;
 class RegClass;
 class AllocClass;
 class ResourceForm;
 class PipeDesc;
 class PipeClass;
 class PeepMatch;
 class PeepConstraint;
 class PeepReplace;
 class MatchList;
 class ArchDesc;
 //==============================Instructions===================================
 //------------------------------InstructForm-----------------------------------
 class InstructForm : public Form {
 private:
   bool          _ideal_only;       // Not a user-defined instruction
   // Members used for tracking CISC-spilling
   uint          _cisc_spill_operand;// Which operand may cisc-spill
   void           set_cisc_spill_operand(uint op_index) { _cisc_spill_operand = op_index; }
   bool          _is_cisc_alternate;
   InstructForm  *_cisc_spill_alternate;// cisc possible replacement
   const char    *_cisc_reg_mask_name;
   InstructForm  *_short_branch_form;
   bool           _is_short_branch;
   uint           _alignment;
 public:
   // Public Data
   const char    *_ident;           // Name of this instruction
   NameList       _parameters;      // Locally defined names
   FormDict       _localNames;      // Table of operands & their types
   MatchRule     *_matrule;         // Matching rule for this instruction
   Opcode        *_opcode;          // Encoding of the opcode for instruction
   char          *_size;            // Size of instruction
   InsEncode     *_insencode;       // Encoding class instruction belongs to
   Attribute     *_attribs;         // List of Attribute rules
   Predicate     *_predicate;       // Predicate test for this instruction
   FormDict       _effects;         // Dictionary of effect rules
   ExpandRule    *_exprule;         // Expand rule for this instruction
   RewriteRule   *_rewrule;         // Rewrite rule for this instruction
   FormatRule    *_format;          // Format for assembly generation
   Peephole      *_peephole;        // List of peephole rules for instruction
   const char    *_ins_pipe;        // Instruction Scheduline description class
   uint          *_uniq_idx;        // Indexes of unique operands
   int            _uniq_idx_length; // Length of _uniq_idx array
   uint           _num_uniq;        // Number  of unique operands
   ComponentList  _components;      // List of Components matches MachNode's
                                    // operand structure
   // Public Methods
   InstructForm(const char *id, bool ideal_only = false);
   InstructForm(const char *id, InstructForm *instr, MatchRule *rule);
   ~InstructForm();
   // Dynamic type check
   virtual InstructForm *is_instruction() const;
   virtual bool        ideal_only() const;
   // This instruction sets a result
   virtual bool        sets_result() const;
   // This instruction needs projections for additional DEFs or KILLs
   virtual bool        needs_projections();
   // This instruction needs extra nodes for temporary inputs
   virtual bool        has_temps();
   // This instruction defines or kills more than one object
   virtual uint        num_defs_or_kills();
   // This instruction has an expand rule?
   virtual bool        expands() const ;
   // Return this instruction's first peephole rule, or NULL
   virtual Peephole   *peepholes() const;
   // Add a peephole rule to this instruction
   virtual void        append_peephole(Peephole *peep);
   virtual bool        is_pinned(FormDict &globals); // should be pinned inside block
   virtual bool        is_projection(FormDict &globals); // node requires projection
   virtual bool        is_parm(FormDict &globals); // node matches ideal 'Parm'
   // ideal opcode enumeration
   virtual const char *ideal_Opcode(FormDict &globals)  const;
   virtual int         is_expensive() const;     // node matches ideal 'CosD'
   virtual int         is_empty_encoding() const; // _size=0 and/or _insencode empty
   virtual int         is_tls_instruction() const; // tlsLoadP rule or ideal ThreadLocal
   virtual int         is_ideal_copy() const;    // node matches ideal 'Copy*'
   virtual bool        is_ideal_unlock() const;  // node matches ideal 'Unlock'
   virtual bool        is_ideal_call_leaf() const; // node matches ideal 'CallLeaf'
   virtual bool        is_ideal_if()   const;    // node matches ideal 'If'
   virtual bool        is_ideal_fastlock() const; // node matches 'FastLock'
   virtual bool        is_ideal_membar() const;  // node matches ideal 'MemBarXXX'
   virtual bool        is_ideal_loadPC() const;  // node matches ideal 'LoadPC'
   virtual bool        is_ideal_box() const;     // node matches ideal 'Box'
   virtual bool        is_ideal_goto() const;    // node matches ideal 'Goto'
   virtual bool        is_ideal_branch() const;  // "" 'If' | 'Goto' | 'LoopEnd' | 'Jump'
   virtual bool        is_ideal_jump() const;    // node matches ideal 'Jump'
   virtual bool        is_ideal_return() const;  // node matches ideal 'Return'
   virtual bool        is_ideal_halt() const;    // node matches ideal 'Halt'
   virtual bool        is_ideal_safepoint() const; // node matches 'SafePoint'
   virtual bool        is_ideal_nop() const;     // node matches 'Nop'
   virtual bool        is_ideal_control() const; // control node
   virtual Form::CallType is_ideal_call() const; // matches ideal 'Call'
   virtual Form::DataType is_ideal_load() const; // node matches ideal 'LoadXNode'
   virtual Form::DataType is_ideal_store() const;// node matches ideal 'StoreXNode'
           bool        is_ideal_mem() const { return is_ideal_load() != Form::none || is_ideal_store() != Form::none; }
   virtual uint        two_address(FormDict &globals); // output reg must match input reg
   // when chaining a constant to an instruction, return 'true' and set opType
   virtual Form::DataType is_chain_of_constant(FormDict &globals);
   virtual Form::DataType is_chain_of_constant(FormDict &globals, const char * &opType);
   virtual Form::DataType is_chain_of_constant(FormDict &globals, const char * &opType, const char * &result_type);
   // Check if a simple chain rule
   virtual bool        is_simple_chain_rule(FormDict &globals) const;
   // check for structural rematerialization
   virtual bool        rematerialize(FormDict &globals, RegisterForm *registers);
   // loads from memory, so must check for anti-dependence
   virtual bool        needs_anti_dependence_check(FormDict &globals) const;
   virtual int         memory_operand(FormDict &globals) const;
           bool        is_wide_memory_kill(FormDict &globals) const;
   enum memory_operand_type {
     NO_MEMORY_OPERAND = -1,
     MANY_MEMORY_OPERANDS = 999999
   };
   // This instruction captures the machine-independent bottom_type
   // Expected use is for pointer vs oop determination for LoadP
   virtual bool        captures_bottom_type() const;
   virtual const char *cost();      // Access ins_cost attribute
   virtual uint        num_opnds(); // Count of num_opnds for MachNode class
   virtual uint        num_post_match_opnds();
   virtual uint        num_consts(FormDict &globals) const;// Constants in match rule
   // Constants in match rule with specified type
   virtual uint        num_consts(FormDict &globals, Form::DataType type) const;
   // Return the register class associated with 'leaf'.
   virtual const char *out_reg_class(FormDict &globals);
   // number of ideal node inputs to skip
   virtual uint        oper_input_base(FormDict &globals);
   // Does this instruction need a base-oop edge?
   int needs_base_oop_edge(FormDict &globals) const;
   // Build instruction predicates.  If the user uses the same operand name
   // twice, we need to check that the operands are pointer-eequivalent in
   // the DFA during the labeling process.
   Predicate *build_predicate();
   virtual void        build_components(); // top-level operands
   // Return zero-based position in component list; -1 if not in list.
   virtual int         operand_position(const char *name, int usedef);
   virtual int         operand_position_format(const char *name);
   // Return zero-based position in component list; -1 if not in list.
   virtual int         label_position();
   virtual int         method_position();
   // Return number of relocation entries needed for this instruction.
   virtual uint        reloc(FormDict &globals);
   const char         *reduce_result();
   // Return the name of the operand on the right hand side of the binary match
   // Return NULL if there is no right hand side
   const char         *reduce_right(FormDict &globals)  const;
   const char         *reduce_left(FormDict &globals)   const;
   // Base class for this instruction, MachNode except for calls
   virtual const char *mach_base_class()  const;
   // Check if this instruction can cisc-spill to 'alternate'
   bool                cisc_spills_to(ArchDesc &AD, InstructForm *alternate);
   InstructForm       *cisc_spill_alternate() { return _cisc_spill_alternate; }
   uint                cisc_spill_operand() const { return _cisc_spill_operand; }
   bool                is_cisc_alternate() const { return _is_cisc_alternate; }
   void                set_cisc_alternate(bool val) { _is_cisc_alternate = val; }
   const char         *cisc_reg_mask_name() const { return _cisc_reg_mask_name; }
   void                set_cisc_reg_mask_name(const char *rm_name) { _cisc_reg_mask_name = rm_name; }
   // Output cisc-method prototypes and method bodies
   void                declare_cisc_version(ArchDesc &AD, FILE *fp_cpp);
   bool                define_cisc_version (ArchDesc &AD, FILE *fp_cpp);
   bool                check_branch_variant(ArchDesc &AD, InstructForm *short_branch);
   bool                is_short_branch() { return _is_short_branch; }
   void                set_short_branch(bool val) { _is_short_branch = val; }
   InstructForm       *short_branch_form() { return _short_branch_form; }
   bool                has_short_branch_form() { return _short_branch_form != NULL; }
   // Output short branch prototypes and method bodies
   void                declare_short_branch_methods(FILE *fp_cpp);
   bool                define_short_branch_methods(FILE *fp_cpp);
   uint                alignment() { return _alignment; }
   void                set_alignment(uint val) { _alignment = val; }
   // Seach through operands to determine operands unique positions.
   void                set_unique_opnds();
   uint                num_unique_opnds() { return _num_uniq; }
   uint                unique_opnds_idx(int idx) {
                         if( _uniq_idx != NULL && idx > 0 ) {
                           assert(idx < _uniq_idx_length, "out of bounds");
                           return _uniq_idx[idx];
                         } else {
                           return idx;
                         }
   }
   // Operands which are only KILLs aren't part of the input array and
   // require special handling in some cases.  Their position in this
   // operand list is higher than the number of unique operands.
   bool is_noninput_operand(uint idx) {
     return (idx >= num_unique_opnds());
   }
   // --------------------------- FILE *output_routines
   //
   // Generate the format call for the replacement variable
   void                rep_var_format(FILE *fp, const char *rep_var);
   // Generate index values needed for determining the operand position
   void                index_temps   (FILE *fp, FormDict &globals, const char *prefix = "", const char *receiver = "");
   // ---------------------------
   virtual bool verify();           // Check consistency after parsing
   virtual void dump();             // Debug printer
   virtual void output(FILE *fp);   // Write to output files
 };
 //------------------------------EncodeForm-------------------------------------
 class EncodeForm : public Form {
 private:
 public:
   // Public Data
   NameList  _eclasses;            // List of encode class names
   Dict      _encClass;            // Map encode class names to EncClass objects
   // Public Methods
   EncodeForm();
   ~EncodeForm();
   EncClass   *add_EncClass(const char *className);
   EncClass   *encClass(const char *className);
   const char *encClassPrototype(const char *className);
   const char *encClassBody(const char *className);
   void dump();                     // Debug printer
   void output(FILE *fp);           // Write info to output files
 };
 //------------------------------EncClass---------------------------------------
 class EncClass : public Form {
 public:
   // NameList for parameter type and name
   NameList       _parameter_type;
   NameList       _parameter_name;
   // Breakdown the encoding into strings separated by $replacement_variables
   // There is an entry in _strings, perhaps NULL, that precedes each _rep_vars
   NameList       _code;            // Strings passed through to tty->print
   NameList       _rep_vars;        // replacement variables
   NameList       _parameters;      // Locally defined names
   FormDict       _localNames;      // Table of components & their types
 public:
   // Public Data
   const char    *_name;            // encoding class name
   // Public Methods
   EncClass(const char *name);
   ~EncClass();
   // --------------------------- Parameters
   // Add a parameter <type,name> pair
   void add_parameter(const char *parameter_type, const char *parameter_name);
   // Verify operand types in parameter list
   bool check_parameter_types(FormDict &globals);
   // Obtain the zero-based index corresponding to a replacement variable
   int         rep_var_index(const char *rep_var);
   int         num_args() { return _parameter_name.count(); }
   // --------------------------- Code Block
   // Add code
   void add_code(const char *string_preceding_replacement_var);
   // Add a replacement variable or one of its subfields
   // Subfields are stored with a leading '$'
   void add_rep_var(char *replacement_var);
   bool verify();
   void dump();
   void output(FILE *fp);
 };
 //------------------------------MachNode---------------------------------------
 class MachNodeForm: public Form {
 private:
 public:
   char          *_ident;           // Name of this instruction
   const char    *_machnode_pipe;   // Instruction Scheduline description class
   // Public Methods
   MachNodeForm(char *id);
   ~MachNodeForm();
   virtual MachNodeForm *is_machnode() const;
   void dump();                     // Debug printer
   void output(FILE *fp);           // Write info to output files
 };
 //------------------------------Opcode-----------------------------------------
 class Opcode : public Form {
 private:
 public:
   // Public Data
   // Strings representing instruction opcodes, user defines placement in emit
   char *_primary;
   char *_secondary;
   char *_tertiary;
   enum opcode_type {
     NOT_AN_OPCODE = -1,
     PRIMARY   = 1,
     SECONDARY = 2,
     TERTIARY  = 3
   };
   // Public Methods
   Opcode(char *primary, char *secondary, char *tertiary);
   ~Opcode();
   static Opcode::opcode_type as_opcode_type(const char *designator);
   void dump();
   void output(FILE *fp);
   // --------------------------- FILE *output_routines
   bool print_opcode(FILE *fp, Opcode::opcode_type desired_opcode);
 };
 //------------------------------InsEncode--------------------------------------
 class InsEncode : public Form {
 private:
   // Public Data (access directly only for reads)
   // The encodings can only have the values predefined by the ADLC:
   // blank, RegReg, RegMem, MemReg, ...
   NameList    _encoding;
   // NameList    _parameter;
   // The parameters for each encoding are preceeded by a NameList::_signal
   // and follow the parameters for the previous encoding.
   // char *_encode;                  // Type of instruction encoding
 public:
   // Public Methods
   InsEncode();
   ~InsEncode();
   // Add "encode class name" and its parameters
   NameAndList  *add_encode(char *encode_method_name);
   // Parameters are added to the returned "NameAndList" by the parser
   // Access the list of encodings
   void          reset();
   const char   *encode_class_iter();
   // Returns the number of arguments to the current encoding in the iteration
   int current_encoding_num_args() {
     return ((NameAndList*)_encoding.current())->count();
   }
   // --------------------------- Parameters
   // The following call depends upon position within encode_class_iteration
   //
   // Obtain parameter name from zero based index
   const char   *rep_var_name(InstructForm &inst, uint param_no);
   // ---------------------------
   void dump();
   void output(FILE *fp);
 };
 //------------------------------Effect-----------------------------------------
 class Effect : public Form {
 private:
 public:
   // Public Data
   const char  *_name;            // Pre-defined name for effect
   int         _use_def;          // Enumeration value of effect
   // Public Methods
   Effect(const char *name);      // Constructor
   ~Effect();                     // Destructor
   // Dynamic type check
   virtual Effect *is_effect() const;
   // Return 'true' if this use def info equals the parameter
   bool  is(int use_def_kill_enum) const;
   // Return 'true' if this use def info is a superset of parameter
   bool  isa(int use_def_kill_enum) const;
   void dump();                   // Debug printer
   void output(FILE *fp);         // Write info to output files
 };
 //------------------------------ExpandRule-------------------------------------
 class ExpandRule : public Form {
 private:
   NameList _expand_instrs;        // ordered list of instructions and operands
 public:
   // Public Data
   NameList _newopers;             // List of newly created operands
   Dict     _newopconst;           // Map new operands to their constructors
   void     add_instruction(NameAndList *instruction_name_and_operand_list);
   void     reset_instructions();
   NameAndList *iter_instructions();
   // Public Methods
   ExpandRule();                   // Constructor
   ~ExpandRule();                  // Destructor
   void dump();                    // Debug printer
   void output(FILE *fp);          // Write info to output files
 };
 //------------------------------RewriteRule------------------------------------
 class RewriteRule : public Form {
 private:
 public:
   // Public Data
   SourceForm     *_condition;      // Rewrite condition code
   InstructForm   *_instrs;         // List of instructions to expand to
   OperandForm    *_opers;          // List of operands generated by expand
   char           *_tempParams;     // Hold string until parser is finished.
   char           *_tempBlock;      // Hold string until parser is finished.
   // Public Methods
   RewriteRule(char* params, char* block) ;
   ~RewriteRule();                  // Destructor
   void dump();                     // Debug printer
   void output(FILE *fp);           // Write info to output files
 };
 //==============================Operands=======================================
 //------------------------------OpClassForm------------------------------------
 class OpClassForm : public Form {
 public:
   // Public Data
   const char    *_ident;           // Name of this operand
   NameList       _oplst;           // List of operand forms included in class
   // Public Methods
   OpClassForm(const char *id);
   ~OpClassForm();
   // dynamic type check
   virtual OpClassForm         *is_opclass() const;
   virtual Form::InterfaceType  interface_type(FormDict &globals) const;
   virtual bool                 stack_slots_only(FormDict &globals) const;
   virtual bool                 is_cisc_mem(FormDict &globals) const;
   // Min and Max opcodes of operands in this operand class
   int _minCode;
   int _maxCode;
   virtual bool ideal_only() const;
   virtual void dump();             // Debug printer
   virtual void output(FILE *fp);   // Write to output files
 };
 //------------------------------OperandForm------------------------------------
 class OperandForm : public OpClassForm {
 private:
   bool         _ideal_only; // Not a user-defined instruction
 public:
   // Public Data
   NameList       _parameters; // Locally defined names
   FormDict       _localNames; // Table of components & their types
   MatchRule     *_matrule;    // Matching rule for this operand
   Interface     *_interface;  // Encoding interface for this operand
   Attribute     *_attribs;    // List of Attribute rules
   Predicate     *_predicate;  // Predicate test for this operand
   Constraint    *_constraint; // Constraint Rule for this operand
   ConstructRule *_construct;  // Construction of operand data after matching
   FormatRule    *_format;     // Format for assembly generation
   NameList       _classes;    // List of opclasses which contain this oper
   ComponentList _components;  //
   // Public Methods
   OperandForm(const char *id);
   OperandForm(const char *id, bool ideal_only);
   ~OperandForm();
   // Dynamic type check
   virtual OperandForm *is_operand() const;
   virtual bool        ideal_only() const;
   virtual Form::InterfaceType interface_type(FormDict &globals) const;
   virtual bool                 stack_slots_only(FormDict &globals) const;
   virtual const char *cost();  // Access ins_cost attribute
   virtual uint        num_leaves() const;// Leaves in complex operand
   // Constants in operands' match rules
   virtual uint        num_consts(FormDict &globals) const;
   // Constants in operand's match rule with specified type
   virtual uint        num_consts(FormDict &globals, Form::DataType type) const;
   // Pointer Constants in operands' match rules
   virtual uint        num_const_ptrs(FormDict &globals) const;
   // The number of input edges in the machine world == num_leaves - num_consts
   virtual uint        num_edges(FormDict &globals) const;
   // Check if this operand is usable for cisc-spilling
   virtual bool        is_cisc_reg(FormDict &globals) const;
   // node matches ideal 'Bool', grab condition codes from the ideal world
   virtual bool        is_ideal_bool()  const;
   // Has an integer constant suitable for spill offsets
   bool has_conI(FormDict &globals) const {
     return (num_consts(globals,idealI) == 1) && !is_ideal_bool(); }
   bool has_conL(FormDict &globals) const {
     return (num_consts(globals,idealL) == 1) && !is_ideal_bool(); }
   // Node is user-defined operand for an sRegX
   virtual Form::DataType is_user_name_for_sReg() const;
   // Return ideal type, if there is a single ideal type for this operand
   virtual const char *ideal_type(FormDict &globals, RegisterForm *registers = NULL) const;
   // If there is a single ideal type for this interface field, return it.
   virtual const char *interface_ideal_type(FormDict   &globals,
                                            const char *field_name) const;
   // Return true if this operand represents a bound register class
   bool is_bound_register() const;
   // Return the Register class for this operand.  Returns NULL if
   // operand isn't a register form.
   RegClass* get_RegClass() const;
   virtual       bool  is_interface_field(const char   *field_name,
                                          const char   * &value) const;
   // If this operand has a single ideal type, return its type
   virtual Form::DataType simple_type(FormDict &globals) const;
   // If this operand is an ideal constant, return its type
   virtual Form::DataType is_base_constant(FormDict &globals) const;
   // "true" if this operand is a simple type that is swallowed
   virtual bool        swallowed(FormDict &globals) const;
   // Return register class name if a constraint specifies the register class.
   virtual const char *constrained_reg_class() const;
   // Return the register class associated with 'leaf'.
   virtual const char *in_reg_class(uint leaf, FormDict &globals);
   // Build component list from MatchRule and operand's parameter list
   virtual void        build_components(); // top-level operands
   // Return zero-based position in component list; -1 if not in list.
   virtual int         operand_position(const char *name, int usedef);
   // Return zero-based position in component list; -1 if not in list.
   virtual int         constant_position(FormDict &globals, const Component *comp);
   virtual int         constant_position(FormDict &globals, const char *local_name);
   // Return the operand form corresponding to the given index, else NULL.
   virtual OperandForm *constant_operand(FormDict &globals, uint const_index);
   // Return zero-based position in component list; -1 if not in list.
   virtual int         register_position(FormDict &globals, const char *regname);
   const char         *reduce_result() const;
   // Return the name of the operand on the right hand side of the binary match
   // Return NULL if there is no right hand side
   const char         *reduce_right(FormDict &globals)  const;
   const char         *reduce_left(FormDict &globals)   const;
   // --------------------------- FILE *output_routines
   //
   // Output code for disp_is_oop, if true.
   void                disp_is_oop(FILE *fp, FormDict &globals);
   // Generate code for internal and external format methods
   void                int_format(FILE *fp, FormDict &globals, uint index);
   void                ext_format(FILE *fp, FormDict &globals, uint index);
   void                format_constant(FILE *fp, uint con_index, uint con_type);
   // Output code to access the value of the index'th constant
   void                access_constant(FILE *fp, FormDict &globals,
                                       uint con_index);
   // ---------------------------
   virtual void dump();             // Debug printer
   virtual void output(FILE *fp);   // Write to output files
 };
 //------------------------------Constraint-------------------------------------
 class Constraint : public Form {
 private:
 public:
   const char      *_func;          // Constraint function
   const char      *_arg;           // function's argument
   // Public Methods
   Constraint(const char *func, const char *arg); // Constructor
   ~Constraint();
   bool stack_slots_only() const;
   void dump();                     // Debug printer
   void output(FILE *fp);           // Write info to output files
 };
 //------------------------------Predicate--------------------------------------
 class Predicate : public Form {
 private:
 public:
   // Public Data
   char *_pred;                     // C++ source string for predicate
   // Public Methods
   Predicate(char *pr);
   ~Predicate();
   void dump();
   void output(FILE *fp);
 };
 //------------------------------Interface--------------------------------------
 class Interface : public Form {
 private:
 public:
   // Public Data
   const char *_name;               // String representing the interface name
   // Public Methods
   Interface(const char *name);
   ~Interface();
   virtual Form::InterfaceType interface_type(FormDict &globals) const;
   RegInterface   *is_RegInterface();
   MemInterface   *is_MemInterface();
   ConstInterface *is_ConstInterface();
   CondInterface  *is_CondInterface();
   void dump();
   void output(FILE *fp);
 };
 //------------------------------RegInterface-----------------------------------
 class RegInterface : public Interface {
 private:
 public:
   // Public Methods
   RegInterface();
   ~RegInterface();
   void dump();
   void output(FILE *fp);
 };
 //------------------------------ConstInterface---------------------------------
 class ConstInterface : public Interface {
 private:
 public:
   // Public Methods
   ConstInterface();
   ~ConstInterface();
   void dump();
   void output(FILE *fp);
 };
 //------------------------------MemInterface-----------------------------------
 class MemInterface : public Interface {
 private:
 public:
   // Public Data
   char *_base;                     // Base address
   char *_index;                    // index
   char *_scale;                    // scaling factor
   char *_disp;                     // displacement
   // Public Methods
   MemInterface(char *base, char *index, char *scale, char *disp);
   ~MemInterface();
   void dump();
   void output(FILE *fp);
 };
 //------------------------------CondInterface----------------------------------
 class CondInterface : public Interface {
 private:
 public:
   const char *_equal;
   const char *_not_equal;
   const char *_less;
   const char *_greater_equal;
   const char *_less_equal;
   const char *_greater;
   const char *_equal_format;
   const char *_not_equal_format;
   const char *_less_format;
   const char *_greater_equal_format;
   const char *_less_equal_format;
   const char *_greater_format;
   // Public Methods
   CondInterface(const char* equal,         const char* equal_format,
                 const char* not_equal,     const char* not_equal_format,
                 const char* less,          const char* less_format,
                 const char* greater_equal, const char* greater_equal_format,
                 const char* less_equal,    const char* less_equal_format,
                 const char* greater,       const char* greater_format);
   ~CondInterface();
   void dump();
   void output(FILE *fp);
 };
 //------------------------------ConstructRule----------------------------------
 class ConstructRule : public Form {
 private:
 public:
   // Public Data
   char *_expr;                     // String representing the match expression
   char *_construct;                // String representing C++ constructor code
   // Public Methods
   ConstructRule(char *cnstr);
   ~ConstructRule();
   void dump();
   void output(FILE *fp);
 };
 //==============================Shared=========================================
 //------------------------------AttributeForm----------------------------------
 class AttributeForm : public Form {
 private:
   // counters for unique instruction or operand ID
   static int   _insId;             // user-defined machine instruction types
   static int   _opId;              // user-defined operand types
   int  id;                         // hold type for this object
 public:
   // Public Data
   char *_attrname;                 // Name of attribute
   int   _atype;                    // Either INS_ATTR or OP_ATTR
   char *_attrdef;                  // C++ source which evaluates to constant
   // Public Methods
   AttributeForm(char *attr, int type, char *attrdef);
   ~AttributeForm();
   // Dynamic type check
   virtual AttributeForm *is_attribute() const;
   int  type() { return id;}        // return this object's "id"
   static const char* _ins_cost;        // "ins_cost"
   static const char* _ins_pc_relative; // "ins_pc_relative"
   static const char* _op_cost;         // "op_cost"
   void dump();                     // Debug printer
   void output(FILE *fp);           // Write output files
 };
 //------------------------------Component--------------------------------------
 class Component : public Form {
 private:
 public:
   // Public Data
   const char *_name;              // Name of this component
   const char *_type;              // Type of this component
   int         _usedef;            // Value of component
   // Public Methods
   Component(const char *name, const char *type, int usedef);
   ~Component();
   // Return 'true' if this use def info equals the parameter
   bool  is(int use_def_kill_enum) const;
   // Return 'true' if this use def info is a superset of parameter
   bool  isa(int use_def_kill_enum) const;
   int   promote_use_def_info(int new_use_def);
   const char *base_type(FormDict &globals);
   // Form::DataType is_base_constant(FormDict &globals);
   void dump();                     // Debug printer
   void output(FILE *fp);           // Write to output files
 public:
   // Implementation depends upon working bit intersection and union.
   enum use_def_enum {
     INVALID = 0x0,
     USE     = 0x1,
     DEF     = 0x2, USE_DEF   = 0x3,
     KILL    = 0x4, USE_KILL  = 0x5,
     SYNTHETIC = 0x8,
     TEMP = USE | SYNTHETIC
   };
 };
 //------------------------------MatchNode--------------------------------------
 class MatchNode : public Form {
 private:
 public:
   // Public Data
   const char  *_result;            // The name of the output of this node
   const char  *_name;              // The name that appeared in the match rule
   const char  *_opType;            // The Operation/Type matched
   MatchNode   *_lChild;            // Left child in expression tree
   MatchNode   *_rChild;            // Right child in expression tree
   int         _numleaves;          // Sum of numleaves for all direct children
   ArchDesc    &_AD;                // Reference to ArchDesc object
   char        *_internalop;        // String representing internal operand
   int         _commutative_id;     // id of commutative operation
   // Public Methods
   MatchNode(ArchDesc &ad, const char *result = 0, const char *expr = 0,
             const char *opType=0, MatchNode *lChild=NULL,
             MatchNode *rChild=NULL);
   MatchNode(ArchDesc &ad, MatchNode& mNode); // Shallow copy constructor;
   MatchNode(ArchDesc &ad, MatchNode& mNode, int clone); // Construct clone
   ~MatchNode();
   // return 0 if not found:
   // return 1 if found and position is incremented by operand offset in rule
   bool       find_name(const char *str, int &position) const;
   bool       find_type(const char *str, int &position) const;
   virtual void append_components(FormDict& locals, ComponentList& components,
                                  bool def_flag = false) const;
   bool       base_operand(uint &position, FormDict &globals,
                          const char * &result, const char * &name,
                          const char * &opType) const;
   // recursive count on operands
   uint       num_consts(FormDict &globals) const;
   uint       num_const_ptrs(FormDict &globals) const;
   // recursive count of constants with specified type
   uint       num_consts(FormDict &globals, Form::DataType type) const;
   // uint       num_consts() const;   // Local inspection only
   int        needs_ideal_memory_edge(FormDict &globals) const;
   int        needs_base_oop_edge() const;
   // Help build instruction predicates.  Search for operand names.
   void count_instr_names( Dict &names );
   int build_instr_pred( char *buf, const char *name, int cnt );
   void build_internalop( );
   // Return the name of the operands associated with reducing to this operand:
   // The result type, plus the left and right sides of the binary match
   // Return NULL if there is no left or right hand side
   bool       sets_result()   const;    // rule "Set"s result of match
   const char *reduce_right(FormDict &globals)  const;
   const char *reduce_left (FormDict &globals)  const;
   // Recursive version of check in MatchRule
   int        cisc_spill_match(FormDict& globals, RegisterForm* registers,
                               MatchNode* mRule2, const char* &operand,
                               const char* &reg_type);
   int        cisc_spill_merge(int left_result, int right_result);
   virtual bool equivalent(FormDict& globals, MatchNode* mNode2);
   void       count_commutative_op(int& count);
   void       swap_commutative_op(bool atroot, int count);
   void dump();
   void output(FILE *fp);
 };
 //------------------------------MatchRule--------------------------------------
 class MatchRule : public MatchNode {
 private:
 public:
   // Public Data
   const char *_machType;            // Machine type index
   int         _depth;               // Expression tree depth
   char       *_construct;           // String representing C++ constructor code
   int         _numchilds;           // Number of direct children
   MatchRule  *_next;                // Pointer to next match rule
   // Public Methods
   MatchRule(ArchDesc &ad);
   MatchRule(ArchDesc &ad, MatchRule* mRule); // Shallow copy constructor;
   MatchRule(ArchDesc &ad, MatchNode* mroot, int depth, char* construct, int numleaves);
   ~MatchRule();
   virtual void append_components(FormDict& locals, ComponentList& components, bool def_flag = false) const;
   // Recursive call on all operands' match rules in my match rule.
   bool       base_operand(uint &position, FormDict &globals,
                          const char * &result, const char * &name,
                          const char * &opType) const;
   bool       is_base_register(FormDict &globals) const;
   Form::DataType is_base_constant(FormDict &globals) const;
   bool       is_chain_rule(FormDict &globals) const;
   int        is_ideal_copy() const;
   int        is_expensive() const;     // node matches ideal 'CosD'
   bool       is_ideal_unlock() const;
   bool       is_ideal_call_leaf() const;
   bool       is_ideal_if()   const;    // node matches ideal 'If'
   bool       is_ideal_fastlock() const; // node matches ideal 'FastLock'
   bool       is_ideal_jump()   const;  // node matches ideal 'Jump'
   bool       is_ideal_membar() const;  // node matches ideal 'MemBarXXX'
   bool       is_ideal_loadPC() const;  // node matches ideal 'LoadPC'
   bool       is_ideal_box() const;     // node matches ideal 'Box'
   bool       is_ideal_goto() const;    // node matches ideal 'Goto'
   bool       is_ideal_loopEnd() const; // node matches ideal 'LoopEnd'
   bool       is_ideal_bool() const;    // node matches ideal 'Bool'
   Form::DataType is_ideal_load() const;// node matches ideal 'LoadXNode'
   Form::DataType is_ideal_store() const;// node matches ideal 'StoreXNode'
   // Check if 'mRule2' is a cisc-spill variant of this MatchRule
   int        matchrule_cisc_spill_match(FormDict &globals, RegisterForm* registers,
                                         MatchRule* mRule2, const char* &operand,
                                         const char* &reg_type);
   // Check if 'mRule2' is equivalent to this MatchRule
   virtual bool equivalent(FormDict& globals, MatchNode* mRule2);
   void       matchrule_swap_commutative_op(const char* instr_ident, int count, int& match_rules_cnt);
   void dump();
   void output(FILE *fp);
 };
 //------------------------------Attribute--------------------------------------
 class Attribute : public Form {
 private:
 public:
   // Public Data
   char *_ident;                    // Name of predefined attribute
   char *_val;                      // C++ source which evaluates to constant
   int   _atype;                    // Either INS_ATTR or OP_ATTR
   int   int_val(ArchDesc &ad);     // Return atoi(_val), ensuring syntax.
   // Public Methods
   Attribute(char *id, char* val, int type);
   ~Attribute();
   void dump();
   void output(FILE *fp);
 };
 //------------------------------FormatRule-------------------------------------
 class FormatRule : public Form {
 private:
 public:
   // Public Data
   // There is an entry in _strings, perhaps NULL, that precedes each _rep_vars
   NameList  _strings;              // Strings passed through to tty->print
   NameList  _rep_vars;             // replacement variables
   char     *_temp;                 // String representing the assembly code
   // Public Methods
   FormatRule(char *temp);
   ~FormatRule();
   void dump();
   void output(FILE *fp);
 };

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/adlc/formssel.hpp@98cb887364d3 (annotated)

src/share/vm/adlc/formssel.hpp