jdk8-mips64-public/hotspot: src/share/vm/adlc/archDesc.hpp@2c6ef90f030a (annotated)

src/share/vm/adlc/archDesc.hpp@2c6ef90f030a (annotated)

src/share/vm/adlc/archDesc.hpp

Mon, 07 Jul 2014 10:12:40 +0200

author: stefank
date: Mon, 07 Jul 2014 10:12:40 +0200
changeset 6992: 2c6ef90f030a
parent 6499: ad3b94907eed
child 6876: 710a3c8b516e
permissions: -rw-r--r--

8049421: G1 Class Unloading after completing a concurrent mark cycle
Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
Contributed-by: stefan.karlsson@oracle.com, mikael.gerdin@oracle.com

 /*
  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #ifndef SHARE_VM_ADLC_ARCHDESC_HPP
 #define SHARE_VM_ADLC_ARCHDESC_HPP
 // Definitions for Error Flags
 #define  WARN   0
 #define  SYNERR 1
 #define  SEMERR 2
 #define  INTERNAL_ERR 3
 // Minimal declarations for include files
 class  OutputMap;
 class  ProductionState;
 class  Expr;
 // STRUCTURE FOR HANDLING INPUT AND OUTPUT FILES
 typedef BufferedFile ADLFILE;
 //---------------------------ChainList-----------------------------------------
 class ChainList {
   NameList _name;
   NameList _cost;
   NameList _rule;
 public:
   void insert(const char *name, const char *cost, const char *rule);
   bool search(const char *name);
   void reset();
   bool iter(const char * &name, const char * &cost, const char * &rule);
   void dump();
   void output(FILE *fp);
   ChainList();
   ~ChainList();
 };
 //---------------------------MatchList-----------------------------------------
 class MatchList {
 private:
   MatchList  *_next;
   Predicate  *_pred;          // Predicate which applies to this match rule
   const char *_cost;
 public:
   const char *_opcode;
   const char *_resultStr;
   const char *_lchild;
   const char *_rchild;
   MatchList(MatchList *nxt, Predicate *prd): _next(nxt), _pred(prd), _cost(NULL){
     _resultStr = _lchild = _rchild = _opcode = NULL; }
   MatchList(MatchList *nxt, Predicate *prd, const char *cost,
             const char *opcode, const char *resultStr, const char *lchild,
             const char *rchild)
     : _next(nxt), _pred(prd), _cost(cost), _opcode(opcode),
       _resultStr(resultStr), _lchild(lchild), _rchild(rchild) { }
   MatchList  *get_next(void)  { return _next; }
   char       *get_pred(void)  { return (_pred?_pred->_pred:NULL); }
   Predicate  *get_pred_obj(void)  { return _pred; }
   const char *get_cost(void) { return _cost == NULL ? "0" :_cost; }
   bool        search(const char *opc, const char *res, const char *lch,
                     const char *rch, Predicate *pr);
   void        dump();
   void        output(FILE *fp);
 };
 //---------------------------ArchDesc------------------------------------------
 class ArchDesc {
 private:
   FormDict      _globalNames;        // Global names
   Dict          _idealIndex;         // Map ideal names to index in enumeration
   ExprDict      _globalDefs;         // Global definitions, #defines
   int           _internalOpCounter;  // Internal Operand Counter
   FormList      _header;             // List of Source Code Forms for hpp file
   FormList      _pre_header;         // ditto for the very top of the hpp file
   FormList      _source;             // List of Source Code Forms for output
   FormList      _instructions;       // List of Instruction Forms for output
   FormList      _machnodes;          // List of Node Classes (special for pipelining)
   FormList      _operands;           // List of Operand Forms for output
   FormList      _opclass;            // List of Operand Class Forms for output
   FormList      _attributes;         // List of Attribute Forms for parsing
   RegisterForm *_register;           // Only one Register Form allowed
   FrameForm    *_frame;              // Describe stack-frame layout
   EncodeForm   *_encode;             // Only one Encode Form allowed
   PipelineForm *_pipeline;           // Pipeline Form for output
   bool _has_match_rule[_last_opcode];  // found AD rule for ideal node in <arch>.ad
   MatchList    *_mlistab[_last_opcode]; // Array of MatchLists
   // The Architecture Description identifies which user-defined operand can be used
   // to access [stack_pointer + offset]
   OperandForm  *_cisc_spill_operand;
   // If a Call node uses $constanttablebase, it gets MachConstantBaseNode
   // by the matcher and the matcher will modify the jvms. If so, jvm states
   // always have to be cloned when a node is cloned.  Adlc generates
   // Compile::needs_clone_jvms() accordingly.
   bool _needs_clone_jvms;
   // Methods for outputting the DFA
   void gen_match(FILE *fp, MatchList &mlist, ProductionState &status, Dict &operands_chained_from);
   void chain_rule(FILE *fp, const char *indent, const char *ideal,
                   const Expr *icost, const char *irule,
                   Dict &operands_chained_from, ProductionState &status);
   void expand_opclass(FILE *fp, const char *indent, const Expr *cost,
                       const char *result_type, ProductionState &status);
   Expr *calc_cost(FILE *fp, const char *spaces, MatchList &mList, ProductionState &status);
   void prune_matchlist(Dict &minimize, MatchList &mlist);
   // Helper function that outputs code to generate an instruction in MachNodeGenerator
   void buildMachNode(FILE *fp_cpp, InstructForm *inst, const char *indent);
 public:
   ArchDesc();
   ~ArchDesc();
   // Option flags which control miscellaneous behaviors throughout the code
   int   _TotalLines;                    // Line Counter
   int   _no_output;                     // Flag to disable output of DFA, etc.
   int   _quiet_mode;                    // Do not output banner messages, etc.
   int   _disable_warnings;              // Do not output warning messages
   int   _dfa_debug;                     // Debug Flag for generated DFA
   int   _dfa_small;                     // Debug Flag for generated DFA
   int   _adl_debug;                     // Debug Flag for ADLC
   int   _adlocation_debug;              // Debug Flag to use ad file locations
   bool  _cisc_spill_debug;              // Debug Flag to see cisc-spill-instructions
   bool  _short_branch_debug;            // Debug Flag to see short branch instructions
   // Error/Warning Counts
   int _syntax_errs;                  // Count of syntax errors
   int _semantic_errs;                // Count of semantic errors
   int _warnings;                     // Count warnings
   int _internal_errs;                // Count of internal errors
   // Accessor for private data.
   void has_match_rule(int opc, const bool b) { _has_match_rule[opc] = b; }
   // I/O Files
   ADLFILE  _ADL_file;          // Input Architecture Description File
   // Machine dependent files, built from architecture definition
   ADLFILE  _DFA_file;          // File for definition of Matcher::DFA
   ADLFILE  _HPP_file;          // File for ArchNode class declarations
   ADLFILE  _CPP_file;          // File for ArchNode class defintions
   ADLFILE  _CPP_CLONE_file;    // File for MachNode/Oper clone defintions
   ADLFILE  _CPP_EXPAND_file;   // File for MachNode expand methods
   ADLFILE  _CPP_FORMAT_file;   // File for MachNode/Oper format defintions
   ADLFILE  _CPP_GEN_file;      // File for MachNode/Oper generator methods
   ADLFILE  _CPP_MISC_file;     // File for miscellaneous MachNode/Oper tables & methods
   ADLFILE  _CPP_PEEPHOLE_file; // File for MachNode peephole methods
   ADLFILE  _CPP_PIPELINE_file; // File for MachNode pipeline defintions
   ADLFILE  _VM_file;           // File for constants needed in VM code
   ADLFILE  _bug_file;          // DFA debugging file
   // I/O helper methods
   int  open_file(bool required, ADLFILE & adf, const char *action);
   void close_file(int delete_out, ADLFILE & adf);
   int  open_files(void);
   void close_files(int delete_out);
   Dict _chainRules;            // Maps user operand names to ChainRules
   Dict _internalOps;           // Maps match strings to internal operand names
   NameList _internalOpNames;   // List internal operand names
   Dict _internalMatch;         // Map internal name to its MatchNode
   NameList      _preproc_list; // Preprocessor flag names
   FormDict      _preproc_table;// Preprocessor flag bindings
   char* get_preproc_def(const char* flag);
   void  set_preproc_def(const char* flag, const char* def);
   FormDict& globalNames() {return _globalNames;} // map global names to forms
   void initKeywords(FormDict& globals);  // Add keywords to global name table
   ExprDict& globalDefs()  {return _globalDefs;}  // map global names to expressions
   OperandForm *constructOperand(const char *ident, bool ideal_only);
   void initBaseOpTypes();            // Import predefined base types.
   void addForm(PreHeaderForm *ptr);  // Add objects to pre-header list
   void addForm(HeaderForm *ptr);     // Add objects to header list
   void addForm(SourceForm *ptr);     // Add objects to source list
   void addForm(EncodeForm *ptr);     // Add objects to encode list
   void addForm(InstructForm *ptr);   // Add objects to the instruct list
   void addForm(OperandForm *ptr);    // Add objects to the operand list
   void addForm(OpClassForm *ptr);    // Add objects to the opclasss list
   void addForm(AttributeForm *ptr);  // Add objects to the attributes list
   void addForm(RegisterForm *ptr);   // Add objects to the register list
   void addForm(FrameForm    *ptr);   // Add objects to the frame list
   void addForm(PipelineForm *ptr);   // Add objects to the pipeline list
   void addForm(MachNodeForm *ptr);   // Add objects to the machnode list
   int  operandFormCount();           // Count number of OperandForms defined
   int  opclassFormCount();           // Count number of OpClassForms defined
   int  instructFormCount();          // Count number of InstructForms defined
   inline void getForm(EncodeForm **ptr)     { *ptr = _encode; }
   bool verify();
   void dump();
   // Helper utility that gets MatchList components from inside MatchRule
   void check_optype(MatchRule *mrule);
   void build_chain_rule(OperandForm *oper);
   void add_chain_rule_entry(const char *src, const char *cost,
                             const char *result);
   const char *getMatchListIndex(MatchRule &mrule);
   void generateMatchLists();         // Build MatchList array and populate it
   void inspectOperands();            // Build MatchLists for all operands
   void inspectOpClasses();           // Build MatchLists for all operands
   void inspectInstructions();        // Build MatchLists for all operands
   void buildDFA(FILE *fp);           // Driver for constructing the DFA
   void gen_dfa_state_body(FILE *fp, Dict &minmize, ProductionState &status, Dict &chained, int i);    // Driver for constructing the DFA state bodies
   // Helper utilities to generate reduction maps for internal operands
   const char *reduceLeft (char *internalName);
   const char *reduceRight(char *internalName);
   // Build enumerations, (1) dense operand index, (2) operands and opcodes
   const char *machOperEnum(const char *opName);       // create dense index names using static function
   static const char *getMachOperEnum(const char *opName);// create dense index name
   void buildMachOperEnum(FILE *fp_hpp);// dense enumeration for operands
   void buildMachOpcodesEnum(FILE *fp_hpp);// enumeration for MachOpers & MachNodes
   // Helper utilities to generate Register Masks
   RegisterForm *get_registers() { return _register; }
   const char *reg_mask(OperandForm  &opForm);
   const char *reg_mask(InstructForm &instForm);
   const char *reg_class_to_reg_mask(const char *reg_class);
   char *stack_or_reg_mask(OperandForm  &opForm);  // name of cisc_spillable version
   // This register class should also generate a stack_or_reg_mask
   void  set_stack_or_reg(const char *reg_class_name); // for cisc-spillable reg classes
   // Generate an enumeration of register mask names and the RegMask objects.
   void  declare_register_masks(FILE *fp_cpp);
   void  build_register_masks(FILE *fp_cpp);
   // Generate enumeration of machine register numbers
   void  buildMachRegisterNumbers(FILE *fp_hpp);
   // Generate enumeration of machine register encodings
   void  buildMachRegisterEncodes(FILE *fp_hpp);
   // Generate Regsiter Size Array
   void  declareRegSizes(FILE *fp_hpp);
   // Generate Pipeline Class information
   void declare_pipe_classes(FILE *fp_hpp);
   // Generate Pipeline definitions
   void build_pipeline_enums(FILE *fp_cpp);
   // Generate Pipeline Class information
   void build_pipe_classes(FILE *fp_cpp);
   // Declare and define mappings from rules to result and input types
   void build_map(OutputMap &map);
   void buildReduceMaps(FILE *fp_hpp, FILE *fp_cpp);
   // build flags for signaling that our machine needs this instruction cloned
   void buildMustCloneMap(FILE *fp_hpp, FILE *fp_cpp);
   // output SUN copyright info
   void addSunCopyright(char* legal, int size, FILE *fp);
   // output the start of an include guard.
   void addIncludeGuardStart(ADLFILE &adlfile, const char* guardString);
   // output the end of an include guard.
   void addIncludeGuardEnd(ADLFILE &adlfile, const char* guardString);
   // output the #include line for this file.
   void addInclude(ADLFILE &adlfile, const char* fileName);
   void addInclude(ADLFILE &adlfile, const char* includeDir, const char* fileName);
   // Output C preprocessor code to verify the backend compilation environment.
   void addPreprocessorChecks(FILE *fp);
   // Output C source and header (source_hpp) blocks.
   void addPreHeaderBlocks(FILE *fp_hpp);
   void addHeaderBlocks(FILE *fp_hpp);
   void addSourceBlocks(FILE *fp_cpp);
   void generate_needs_clone_jvms(FILE *fp_cpp);
   void generate_adlc_verification(FILE *fp_cpp);
   // output declaration of class State
   void defineStateClass(FILE *fp);
   // Generator for MachOper objects given integer type
   void buildMachOperGenerator(FILE *fp_cpp);
   // Generator for MachNode objects given integer type
   void buildMachNodeGenerator(FILE *fp_cpp);
   // Generator for Expand methods for instructions with expand rules
   void defineExpand      (FILE *fp, InstructForm *node);
   // Generator for Peephole methods for instructions with peephole rules
   void definePeephole    (FILE *fp, InstructForm *node);
   // Generator for Size methods for instructions
   void defineSize        (FILE *fp, InstructForm &node);
 public:
   // Generator for EvalConstantValue methods for instructions
   void defineEvalConstant(FILE *fp, InstructForm &node);
   // Generator for Emit methods for instructions
   void defineEmit        (FILE *fp, InstructForm &node);
   // Generator for postalloc_expand methods for instructions.
   void define_postalloc_expand(FILE *fp, InstructForm &node);
   // Define a MachOper encode method
   void define_oper_interface(FILE *fp, OperandForm &oper, FormDict &globals,
                              const char *name, const char *encoding);
   // Methods to construct the MachNode class hierarchy
   // Return the type signature for the ideal operation
   const char *getIdealType(const char *idealOp);
   // Declare and define the classes derived from MachOper and MachNode
   void declareClasses(FILE *fp_hpp);
   void defineClasses(FILE *fp_cpp);
   // Emit an ADLC message
   void internal_err( const char *fmt, ...);
   void syntax_err  ( int lineno, const char *fmt, ...);
   int  emit_msg(int quiet, int flag, int linenum, const char *fmt,
        va_list args);
   // Generator for has_match_rule methods
   void buildInstructMatchCheck(FILE *fp_cpp) const;
   // Generator for Frame Methods
   void buildFrameMethods(FILE *fp_cpp);
   // Generate CISC_spilling oracle and MachNode::cisc_spill() methods
   void          build_cisc_spill_instructions(FILE *fp_hpp, FILE *fp_cpp);
   void          identify_cisc_spill_instructions();
   void          identify_short_branches();
   void          identify_unique_operands();
   void          set_cisc_spill_operand(OperandForm *opForm) { _cisc_spill_operand = opForm; }
   OperandForm  *cisc_spill_operand() { return _cisc_spill_operand; }
   bool          can_cisc_spill() { return _cisc_spill_operand != NULL; }
 protected:
   // build MatchList from MatchRule
   void buildMatchList(MatchRule *mrule, const char *resultStr,
                       const char *rootOp, Predicate *pred, const char *cost);
   void buildMList(MatchNode *node, const char *rootOp, const char *resultOp,
                   Predicate *pred, const char *cost);
   friend class ADLParser;
 };
 // -------------------------------- maps ------------------------------------
 // Base class for generating a mapping from rule number to value.
 // Used with ArchDesc::build_map() for all maps except "enum MachOperands"
 // A derived class defines the appropriate output for a specific mapping.
 class OutputMap {
 protected:
   FILE       *_hpp;
   FILE       *_cpp;
   FormDict   &_globals;
   ArchDesc   &_AD;
   const char *_name;
 public:
   OutputMap (FILE *decl_file, FILE *def_file, FormDict &globals, ArchDesc &AD, const char *name)
     : _hpp(decl_file), _cpp(def_file), _globals(globals), _AD(AD), _name(name) {};
   // Access files used by this routine
   FILE        *decl_file() { return _hpp; }
   FILE        *def_file()  { return _cpp; }
   // Positions in iteration that derived class will be told about
   enum position { BEGIN_OPERANDS,
                   BEGIN_OPCLASSES,
                   BEGIN_INTERNALS,
                   BEGIN_INSTRUCTIONS,
                   BEGIN_INST_CHAIN_RULES,
                   END_INST_CHAIN_RULES,
                   BEGIN_REMATERIALIZE,
                   END_REMATERIALIZE,
                   END_INSTRUCTIONS
   };
   // Output routines specific to the derived class
   virtual void declaration() {}
   virtual void definition()  {}
   virtual void closing()     {  fprintf(_cpp, "};\n"); }
   virtual void map(OperandForm  &oper) { }
   virtual void map(OpClassForm  &opc)  { }
   virtual void map(char         *internal_name) { }
   // Allow enum-MachOperands to turn-off instructions
   virtual bool do_instructions()       { return true; }
   virtual void map(InstructForm &inst) { }
   // Allow derived class to output name and position specific info
   virtual void record_position(OutputMap::position place, int index) {}
 };
 #endif // SHARE_VM_ADLC_ARCHDESC_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/adlc/archDesc.hpp@2c6ef90f030a (annotated)

src/share/vm/adlc/archDesc.hpp