jdk8-mips64-public/hotspot: src/share/vm/c1/c1_ValueType.hpp@710a3c8b516e (annotated)

src/share/vm/c1/c1_ValueType.hpp@710a3c8b516e (annotated)

src/share/vm/c1/c1_ValueType.hpp

Tue, 08 Aug 2017 15:57:29 +0800

author: aoqi
date: Tue, 08 Aug 2017 15:57:29 +0800
changeset 6876: 710a3c8b516e
parent 6680: 78bbf4d43a14
parent 0: f90c822e73f8
permissions: -rw-r--r--

merge

 /*
  * Copyright (c) 1999, 2014, 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_C1_C1_VALUETYPE_HPP
 #define SHARE_VM_C1_C1_VALUETYPE_HPP
 #include "c1/c1_Compilation.hpp"
 #include "ci/ciConstant.hpp"
 #include "ci/ciMethodData.hpp"
 // type hierarchy
 class ValueType;
 class   VoidType;
 class   IntType;
 class     IntConstant;
 class     IntInterval;
 class   LongType;
 class     LongConstant;
 class   FloatType;
 class     FloatConstant;
 class   DoubleType;
 class     DoubleConstant;
 class   ObjectType;
 class     ObjectConstant;
 class     ArrayType;
 class       ArrayConstant;
 class     InstanceType;
 class       InstanceConstant;
 class   MetadataType;
 class     ClassType;
 class       ClassConstant;
 class     MethodType;
 class       MethodConstant;
 class     MethodDataType;
 class       MethodDataConstant;
 class   AddressType;
 class     AddressConstant;
 class   IllegalType;
 // predefined types
 extern VoidType*       voidType;
 extern IntType*        intType;
 extern LongType*       longType;
 extern FloatType*      floatType;
 extern DoubleType*     doubleType;
 extern ObjectType*     objectType;
 extern ArrayType*      arrayType;
 extern InstanceType*   instanceType;
 extern ClassType*      classType;
 extern AddressType*    addressType;
 extern IllegalType*    illegalType;
 // predefined constants
 extern IntConstant*    intZero;
 extern IntConstant*    intOne;
 extern ObjectConstant* objectNull;
 // tags
 enum ValueTag {
   // all legal tags must come first
   intTag,
   longTag,
   floatTag,
   doubleTag,
   objectTag,
   addressTag,
   metaDataTag,
   number_of_legal_tags,
   // all other tags must follow afterwards
   voidTag = number_of_legal_tags,
   illegalTag,
   number_of_tags
 };
 class ValueType: public CompilationResourceObj {
  private:
   const int _size;
   const ValueTag _tag;
   ValueType();
  protected:
   ValueType(ValueTag tag, int size): _tag(tag), _size(size) {}
  public:
   // initialization
   static void initialize(Arena* arena);
   // accessors
   virtual ValueType* base() const                = 0; // the 'canonical' type (e.g., intType for an IntConstant)
   ValueTag tag() const { return _tag; }          // the 'canonical' tag  (useful for type matching)
   int size() const {                             // the size of an object of the type in words
     assert(_size > -1, "shouldn't be asking for size");
     return _size;
   }
   virtual const char tchar() const               = 0; // the type 'character' for printing
   virtual const char* name() const               = 0; // the type name for printing
   virtual bool is_constant() const               { return false; }
   // testers
   bool is_void()                                 { return tag() == voidTag;   }
   bool is_int()                                  { return tag() == intTag;    }
   bool is_long()                                 { return tag() == longTag;   }
   bool is_float()                                { return tag() == floatTag;  }
   bool is_double()                               { return tag() == doubleTag; }
   bool is_object()                               { return as_ObjectType()   != NULL; }
   bool is_array()                                { return as_ArrayType()    != NULL; }
   bool is_instance()                             { return as_InstanceType() != NULL; }
   bool is_class()                                { return as_ClassType()    != NULL; }
   bool is_method()                               { return as_MethodType()   != NULL; }
   bool is_method_data()                          { return as_MethodDataType() != NULL; }
   bool is_address()                              { return as_AddressType()  != NULL; }
   bool is_illegal()                              { return tag() == illegalTag; }
   bool is_int_kind() const                       { return tag() == intTag || tag() == longTag; }
   bool is_float_kind() const                     { return tag() == floatTag || tag() == doubleTag; }
   bool is_object_kind() const                    { return tag() == objectTag; }
   bool is_single_word() const                    { return _size == 1; }
   bool is_double_word() const                    { return _size == 2; }
   // casting
   virtual VoidType*         as_VoidType()        { return NULL; }
   virtual IntType*          as_IntType()         { return NULL; }
   virtual LongType*         as_LongType()        { return NULL; }
   virtual FloatType*        as_FloatType()       { return NULL; }
   virtual DoubleType*       as_DoubleType()      { return NULL; }
   virtual ObjectType*       as_ObjectType()      { return NULL; }
   virtual ArrayType*        as_ArrayType()       { return NULL; }
   virtual InstanceType*     as_InstanceType()    { return NULL; }
   virtual ClassType*        as_ClassType()       { return NULL; }
   virtual MetadataType*     as_MetadataType()    { return NULL; }
   virtual MethodType*       as_MethodType()      { return NULL; }
   virtual MethodDataType*   as_MethodDataType()  { return NULL; }
   virtual AddressType*      as_AddressType()     { return NULL; }
   virtual IllegalType*      as_IllegalType()     { return NULL; }
   virtual IntConstant*      as_IntConstant()     { return NULL; }
   virtual LongConstant*     as_LongConstant()    { return NULL; }
   virtual FloatConstant*    as_FloatConstant()   { return NULL; }
   virtual DoubleConstant*   as_DoubleConstant()  { return NULL; }
   virtual ObjectConstant*   as_ObjectConstant()  { return NULL; }
   virtual InstanceConstant* as_InstanceConstant(){ return NULL; }
   virtual ClassConstant*    as_ClassConstant()   { return NULL; }
   virtual MethodConstant*   as_MethodConstant()  { return NULL; }
   virtual MethodDataConstant* as_MethodDataConstant() { return NULL; }
   virtual ArrayConstant*    as_ArrayConstant()   { return NULL; }
   virtual AddressConstant*  as_AddressConstant() { return NULL; }
   // type operations
   ValueType* meet(ValueType* y) const;
   ValueType* join(ValueType* y) const;
   // debugging
   void print(outputStream* s = tty)              { s->print("%s", name()); }
 };
 class VoidType: public ValueType {
  public:
   VoidType(): ValueType(voidTag, 0) {}
   virtual ValueType* base() const                { return voidType; }
   virtual const char tchar() const               { return 'v'; }
   virtual const char* name() const               { return "void"; }
   virtual VoidType* as_VoidType()                { return this; }
 };
 class IntType: public ValueType {
  public:
   IntType(): ValueType(intTag, 1) {}
   virtual ValueType* base() const                { return intType; }
   virtual const char tchar() const               { return 'i'; }
   virtual const char* name() const               { return "int"; }
   virtual IntType* as_IntType()                  { return this; }
 };
 class IntConstant: public IntType {
  private:
   jint _value;
  public:
   IntConstant(jint value)                        { _value = value; }
   jint value() const                             { return _value; }
   virtual bool is_constant() const               { return true; }
   virtual IntConstant* as_IntConstant()          { return this; }
 };
 class IntInterval: public IntType {
  private:
   jint _beg;
   jint _end;
  public:
   IntInterval(jint beg, jint end) {
     assert(beg <= end, "illegal interval");
     _beg = beg;
     _end = end;
   }
   jint beg() const                               { return _beg; }
   jint end() const                               { return _end; }
   virtual bool is_interval() const               { return true; }
 };
 class LongType: public ValueType {
  public:
   LongType(): ValueType(longTag, 2) {}
   virtual ValueType* base() const                { return longType; }
   virtual const char tchar() const               { return 'l'; }
   virtual const char* name() const               { return "long"; }
   virtual LongType* as_LongType()                { return this; }
 };
 class LongConstant: public LongType {
  private:
   jlong _value;
  public:
   LongConstant(jlong value)                      { _value = value; }
   jlong value() const                            { return _value; }
   virtual bool is_constant() const               { return true; }
   virtual LongConstant* as_LongConstant()        { return this; }
 };
 class FloatType: public ValueType {
  public:
   FloatType(): ValueType(floatTag, 1) {}
   virtual ValueType* base() const                { return floatType; }
   virtual const char tchar() const               { return 'f'; }
   virtual const char* name() const               { return "float"; }
   virtual FloatType* as_FloatType()              { return this; }
 };
 class FloatConstant: public FloatType {
  private:
   jfloat _value;
  public:
   FloatConstant(jfloat value)                    { _value = value; }
   jfloat value() const                           { return _value; }
   virtual bool is_constant() const               { return true; }
   virtual FloatConstant* as_FloatConstant()      { return this; }
 };
 class DoubleType: public ValueType {
  public:
   DoubleType(): ValueType(doubleTag, 2) {}
   virtual ValueType* base() const                { return doubleType; }
   virtual const char tchar() const               { return 'd'; }
   virtual const char* name() const               { return "double"; }
   virtual DoubleType* as_DoubleType()            { return this; }
 };
 class DoubleConstant: public DoubleType {
  private:
   jdouble _value;
  public:
   DoubleConstant(jdouble value)                  { _value = value; }
   jdouble value() const                          { return _value; }
   virtual bool is_constant() const               { return true; }
   virtual DoubleConstant* as_DoubleConstant()    { return this; }
 };
 class ObjectType: public ValueType {
  public:
   ObjectType(): ValueType(objectTag, 1) {}
   virtual ValueType* base() const                { return objectType; }
   virtual const char tchar() const               { return 'a'; }
   virtual const char* name() const               { return "object"; }
   virtual ObjectType* as_ObjectType()            { return this; }
   virtual ciObject* constant_value() const       { ShouldNotReachHere(); return NULL; }
   virtual ciType* exact_type() const             { return NULL; }
   bool is_loaded() const;
   jobject encoding() const;
 };
 class ObjectConstant: public ObjectType {
  private:
   ciObject* _value;
  public:
   ObjectConstant(ciObject* value)                { _value = value; }
   ciObject* value() const                        { return _value; }
   virtual bool is_constant() const               { return true; }
   virtual ObjectConstant* as_ObjectConstant()    { return this; }
   virtual ciObject* constant_value() const;
   virtual ciType* exact_type() const;
 };
 class ArrayType: public ObjectType {
  public:
   virtual ArrayType* as_ArrayType()              { return this; }
 };
 class ArrayConstant: public ArrayType {
  private:
   ciArray* _value;
  public:
   ArrayConstant(ciArray* value)                  { _value = value; }
   ciArray* value() const                         { return _value; }
   virtual bool is_constant() const               { return true; }
   virtual ArrayConstant* as_ArrayConstant()      { return this; }
   virtual ciObject* constant_value() const;
   virtual ciType* exact_type() const;
 };
 class InstanceType: public ObjectType {
  public:
   virtual InstanceType* as_InstanceType()        { return this; }
 };
 class InstanceConstant: public InstanceType {
  private:
   ciInstance* _value;
  public:
   InstanceConstant(ciInstance* value)            { _value = value; }
   ciInstance* value() const                      { return _value; }
   virtual bool is_constant() const               { return true; }
   virtual InstanceConstant* as_InstanceConstant(){ return this; }
   virtual ciObject* constant_value() const;
   virtual ciType* exact_type() const;
 };
 class MetadataType: public ValueType {
  public:
   MetadataType(): ValueType(metaDataTag, 1) {}
   virtual ValueType* base() const                       { return objectType; }
   virtual const char tchar() const                      { return 'a'; }
   virtual const char* name() const                      { return "object"; }
   virtual MetadataType* as_MetadataType()               { return this; }
   bool is_loaded() const;
   jobject encoding() const;
   virtual ciMetadata* constant_value() const            { ShouldNotReachHere(); return NULL;  }
 };
 class ClassType: public MetadataType {
  public:
   virtual ClassType* as_ClassType()              { return this; }
 };
 class ClassConstant: public ClassType {
  private:
   ciInstanceKlass* _value;
  public:
   ClassConstant(ciInstanceKlass* value)          { _value = value; }
   ciInstanceKlass* value() const                 { return _value; }
   virtual bool is_constant() const               { return true; }
   virtual ClassConstant* as_ClassConstant()      { return this; }
   virtual ciMetadata* constant_value() const            { return _value; }
   virtual ciType* exact_type() const;
 };
 class MethodType: public MetadataType {
  public:
   virtual MethodType* as_MethodType()                   { return this; }
 };
 class MethodConstant: public MethodType {
  private:
   ciMethod* _value;
  public:
   MethodConstant(ciMethod* value)                       { _value = value; }
   ciMethod* value() const                               { return _value; }
   virtual bool is_constant() const                      { return true; }
   virtual MethodConstant* as_MethodConstant()           { return this; }
   virtual ciMetadata* constant_value() const            { return _value; }
 };
 class MethodDataType: public MetadataType {
  public:
   virtual MethodDataType* as_MethodDataType()           { return this; }
 };
 class MethodDataConstant: public MethodDataType {
  private:
   ciMethodData* _value;
  public:
   MethodDataConstant(ciMethodData* value)               { _value = value; }
   ciMethodData* value() const                           { return _value; }
   virtual bool is_constant() const                      { return true; }
   virtual MethodDataConstant* as_MethodDataConstant()   { return this; }
   virtual ciMetadata* constant_value() const            { return _value; }
 };
 class AddressType: public ValueType {
  public:
   AddressType(): ValueType(addressTag, 1) {}
   virtual ValueType* base() const                { return addressType; }
   virtual const char tchar() const               { return 'r'; }
   virtual const char* name() const               { return "address"; }
   virtual AddressType* as_AddressType()          { return this; }
 };
 class AddressConstant: public AddressType {
  private:
   jint _value;
  public:
   AddressConstant(jint value)                    { _value = value; }
   jint value() const                             { return _value; }
   virtual bool is_constant() const               { return true; }
   virtual AddressConstant* as_AddressConstant()  { return this; }
 };
 class IllegalType: public ValueType {
  public:
   IllegalType(): ValueType(illegalTag, -1) {}
   virtual ValueType* base() const                { return illegalType; }
   virtual const char tchar() const               { return ' '; }
   virtual const char* name() const               { return "illegal"; }
   virtual IllegalType* as_IllegalType()          { return this; }
 };
 // conversion between ValueTypes, BasicTypes, and ciConstants
 ValueType* as_ValueType(BasicType type);
 ValueType* as_ValueType(ciConstant value);
 BasicType  as_BasicType(ValueType* type);
 inline ValueType* as_ValueType(ciType* type) { return as_ValueType(type->basic_type()); }
 #endif // SHARE_VM_C1_C1_VALUETYPE_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/c1/c1_ValueType.hpp@710a3c8b516e (annotated)

src/share/vm/c1/c1_ValueType.hpp