author | roland |
Tue, 22 Oct 2013 09:51:47 +0200 | |
changeset 21095 | 1a04f7b3946e |
parent 13728 | 882756847a04 |
child 24424 | 2658d7834c6e |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#ifndef SHARE_VM_C1_C1_VALUETYPE_HPP |
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#define SHARE_VM_C1_C1_VALUETYPE_HPP |
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#include "c1/c1_Compilation.hpp" |
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#include "ci/ciConstant.hpp" |
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#include "ci/ciMethodData.hpp" |
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// type hierarchy |
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class ValueType; |
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class VoidType; |
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class IntType; |
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class IntConstant; |
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class IntInterval; |
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class LongType; |
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class LongConstant; |
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class FloatType; |
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class FloatConstant; |
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class DoubleType; |
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class DoubleConstant; |
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class ObjectType; |
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class ObjectConstant; |
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class ArrayType; |
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class ArrayConstant; |
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class InstanceType; |
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class InstanceConstant; |
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class MetadataType; |
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class ClassType; |
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class ClassConstant; |
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class MethodType; |
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class MethodConstant; |
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class MethodDataType; |
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class MethodDataConstant; |
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class AddressType; |
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class AddressConstant; |
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class IllegalType; |
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// predefined types |
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extern VoidType* voidType; |
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extern IntType* intType; |
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extern LongType* longType; |
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extern FloatType* floatType; |
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extern DoubleType* doubleType; |
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extern ObjectType* objectType; |
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extern ArrayType* arrayType; |
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extern InstanceType* instanceType; |
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extern ClassType* classType; |
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extern AddressType* addressType; |
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extern IllegalType* illegalType; |
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// predefined constants |
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extern IntConstant* intZero; |
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extern IntConstant* intOne; |
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extern ObjectConstant* objectNull; |
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// tags |
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enum ValueTag { |
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// all legal tags must come first |
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intTag, |
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longTag, |
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floatTag, |
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doubleTag, |
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objectTag, |
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addressTag, |
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metaDataTag, |
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number_of_legal_tags, |
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// all other tags must follow afterwards |
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voidTag = number_of_legal_tags, |
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illegalTag, |
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number_of_tags |
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}; |
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class ValueType: public CompilationResourceObj { |
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private: |
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const int _size; |
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const ValueTag _tag; |
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ValueType(); |
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protected: |
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ValueType(ValueTag tag, int size): _tag(tag), _size(size) {} |
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public: |
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// initialization |
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static void initialize(Arena* arena); |
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// accessors |
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virtual ValueType* base() const = 0; // the 'canonical' type (e.g., intType for an IntConstant) |
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ValueTag tag() const { return _tag; } // the 'canonical' tag (useful for type matching) |
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int size() const { // the size of an object of the type in words |
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assert(_size > -1, "shouldn't be asking for size"); |
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return _size; |
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} |
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virtual const char tchar() const = 0; // the type 'character' for printing |
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virtual const char* name() const = 0; // the type name for printing |
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virtual bool is_constant() const { return false; } |
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// testers |
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bool is_void() { return tag() == voidTag; } |
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bool is_int() { return tag() == intTag; } |
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bool is_long() { return tag() == longTag; } |
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bool is_float() { return tag() == floatTag; } |
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bool is_double() { return tag() == doubleTag; } |
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bool is_object() { return as_ObjectType() != NULL; } |
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bool is_array() { return as_ArrayType() != NULL; } |
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bool is_instance() { return as_InstanceType() != NULL; } |
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bool is_class() { return as_ClassType() != NULL; } |
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bool is_method() { return as_MethodType() != NULL; } |
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bool is_method_data() { return as_MethodDataType() != NULL; } |
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bool is_address() { return as_AddressType() != NULL; } |
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bool is_illegal() { return tag() == illegalTag; } |
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bool is_int_kind() const { return tag() == intTag || tag() == longTag; } |
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bool is_float_kind() const { return tag() == floatTag || tag() == doubleTag; } |
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bool is_object_kind() const { return tag() == objectTag; } |
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bool is_single_word() const { return _size == 1; } |
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bool is_double_word() const { return _size == 2; } |
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// casting |
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virtual VoidType* as_VoidType() { return NULL; } |
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virtual IntType* as_IntType() { return NULL; } |
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virtual LongType* as_LongType() { return NULL; } |
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virtual FloatType* as_FloatType() { return NULL; } |
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virtual DoubleType* as_DoubleType() { return NULL; } |
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virtual ObjectType* as_ObjectType() { return NULL; } |
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virtual ArrayType* as_ArrayType() { return NULL; } |
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virtual InstanceType* as_InstanceType() { return NULL; } |
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virtual ClassType* as_ClassType() { return NULL; } |
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virtual MetadataType* as_MetadataType() { return NULL; } |
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virtual MethodType* as_MethodType() { return NULL; } |
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virtual MethodDataType* as_MethodDataType() { return NULL; } |
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virtual AddressType* as_AddressType() { return NULL; } |
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virtual IllegalType* as_IllegalType() { return NULL; } |
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virtual IntConstant* as_IntConstant() { return NULL; } |
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virtual LongConstant* as_LongConstant() { return NULL; } |
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virtual FloatConstant* as_FloatConstant() { return NULL; } |
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virtual DoubleConstant* as_DoubleConstant() { return NULL; } |
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virtual ObjectConstant* as_ObjectConstant() { return NULL; } |
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virtual InstanceConstant* as_InstanceConstant(){ return NULL; } |
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virtual ClassConstant* as_ClassConstant() { return NULL; } |
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virtual MethodConstant* as_MethodConstant() { return NULL; } |
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virtual MethodDataConstant* as_MethodDataConstant() { return NULL; } |
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virtual ArrayConstant* as_ArrayConstant() { return NULL; } |
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virtual AddressConstant* as_AddressConstant() { return NULL; } |
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// type operations |
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ValueType* meet(ValueType* y) const; |
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ValueType* join(ValueType* y) const; |
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// debugging |
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void print(outputStream* s = tty) { s->print(name()); } |
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}; |
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class VoidType: public ValueType { |
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public: |
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VoidType(): ValueType(voidTag, 0) {} |
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virtual ValueType* base() const { return voidType; } |
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virtual const char tchar() const { return 'v'; } |
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virtual const char* name() const { return "void"; } |
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virtual VoidType* as_VoidType() { return this; } |
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}; |
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class IntType: public ValueType { |
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public: |
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IntType(): ValueType(intTag, 1) {} |
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virtual ValueType* base() const { return intType; } |
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virtual const char tchar() const { return 'i'; } |
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virtual const char* name() const { return "int"; } |
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virtual IntType* as_IntType() { return this; } |
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}; |
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class IntConstant: public IntType { |
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private: |
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jint _value; |
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public: |
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IntConstant(jint value) { _value = value; } |
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jint value() const { return _value; } |
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virtual bool is_constant() const { return true; } |
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virtual IntConstant* as_IntConstant() { return this; } |
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}; |
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class IntInterval: public IntType { |
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private: |
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jint _beg; |
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jint _end; |
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public: |
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IntInterval(jint beg, jint end) { |
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assert(beg <= end, "illegal interval"); |
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_beg = beg; |
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_end = end; |
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} |
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jint beg() const { return _beg; } |
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jint end() const { return _end; } |
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virtual bool is_interval() const { return true; } |
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}; |
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class LongType: public ValueType { |
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public: |
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LongType(): ValueType(longTag, 2) {} |
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virtual ValueType* base() const { return longType; } |
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virtual const char tchar() const { return 'l'; } |
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virtual const char* name() const { return "long"; } |
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virtual LongType* as_LongType() { return this; } |
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}; |
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class LongConstant: public LongType { |
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private: |
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jlong _value; |
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public: |
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LongConstant(jlong value) { _value = value; } |
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jlong value() const { return _value; } |
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virtual bool is_constant() const { return true; } |
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virtual LongConstant* as_LongConstant() { return this; } |
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}; |
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class FloatType: public ValueType { |
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public: |
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FloatType(): ValueType(floatTag, 1) {} |
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virtual ValueType* base() const { return floatType; } |
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virtual const char tchar() const { return 'f'; } |
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virtual const char* name() const { return "float"; } |
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virtual FloatType* as_FloatType() { return this; } |
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}; |
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class FloatConstant: public FloatType { |
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private: |
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jfloat _value; |
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public: |
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FloatConstant(jfloat value) { _value = value; } |
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jfloat value() const { return _value; } |
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virtual bool is_constant() const { return true; } |
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virtual FloatConstant* as_FloatConstant() { return this; } |
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}; |
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class DoubleType: public ValueType { |
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public: |
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DoubleType(): ValueType(doubleTag, 2) {} |
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virtual ValueType* base() const { return doubleType; } |
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virtual const char tchar() const { return 'd'; } |
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virtual const char* name() const { return "double"; } |
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virtual DoubleType* as_DoubleType() { return this; } |
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}; |
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class DoubleConstant: public DoubleType { |
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private: |
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jdouble _value; |
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public: |
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DoubleConstant(jdouble value) { _value = value; } |
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jdouble value() const { return _value; } |
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virtual bool is_constant() const { return true; } |
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virtual DoubleConstant* as_DoubleConstant() { return this; } |
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}; |
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class ObjectType: public ValueType { |
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public: |
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ObjectType(): ValueType(objectTag, 1) {} |
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virtual ValueType* base() const { return objectType; } |
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virtual const char tchar() const { return 'a'; } |
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virtual const char* name() const { return "object"; } |
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virtual ObjectType* as_ObjectType() { return this; } |
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virtual ciObject* constant_value() const { ShouldNotReachHere(); return NULL; } |
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virtual ciType* exact_type() const { return NULL; } |
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bool is_loaded() const; |
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jobject encoding() const; |
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}; |
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class ObjectConstant: public ObjectType { |
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private: |
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ciObject* _value; |
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public: |
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ObjectConstant(ciObject* value) { _value = value; } |
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ciObject* value() const { return _value; } |
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virtual bool is_constant() const { return true; } |
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virtual ObjectConstant* as_ObjectConstant() { return this; } |
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virtual ciObject* constant_value() const; |
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virtual ciType* exact_type() const; |
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}; |
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class ArrayType: public ObjectType { |
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public: |
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339 |
virtual ArrayType* as_ArrayType() { return this; } |
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}; |
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341 |
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342 |
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class ArrayConstant: public ArrayType { |
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private: |
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ciArray* _value; |
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346 |
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public: |
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ArrayConstant(ciArray* value) { _value = value; } |
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349 |
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ciArray* value() const { return _value; } |
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virtual bool is_constant() const { return true; } |
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virtual ArrayConstant* as_ArrayConstant() { return this; } |
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virtual ciObject* constant_value() const; |
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virtual ciType* exact_type() const; |
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}; |
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class InstanceType: public ObjectType { |
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public: |
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virtual InstanceType* as_InstanceType() { return this; } |
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362 |
}; |
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363 |
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364 |
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class InstanceConstant: public InstanceType { |
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private: |
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ciInstance* _value; |
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public: |
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InstanceConstant(ciInstance* value) { _value = value; } |
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ciInstance* value() const { return _value; } |
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virtual bool is_constant() const { return true; } |
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virtual InstanceConstant* as_InstanceConstant(){ return this; } |
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virtual ciObject* constant_value() const; |
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virtual ciType* exact_type() const; |
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}; |
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class MetadataType: public ValueType { |
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public: |
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MetadataType(): ValueType(metaDataTag, 1) {} |
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virtual ValueType* base() const { return objectType; } |
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virtual const char tchar() const { return 'a'; } |
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virtual const char* name() const { return "object"; } |
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virtual MetadataType* as_MetadataType() { return this; } |
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bool is_loaded() const; |
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jobject encoding() const; |
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virtual ciMetadata* constant_value() const { ShouldNotReachHere(); return NULL; } |
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}; |
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class ClassType: public MetadataType { |
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virtual ClassType* as_ClassType() { return this; } |
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}; |
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class ClassConstant: public ClassType { |
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ciInstanceKlass* _value; |
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ClassConstant(ciInstanceKlass* value) { _value = value; } |
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ciInstanceKlass* value() const { return _value; } |
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virtual bool is_constant() const { return true; } |
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virtual ClassConstant* as_ClassConstant() { return this; } |
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virtual ciMetadata* constant_value() const { return _value; } |
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virtual ciType* exact_type() const; |
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}; |
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class MethodType: public MetadataType { |
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virtual MethodType* as_MethodType() { return this; } |
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}; |
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class MethodConstant: public MethodType { |
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ciMethod* _value; |
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public: |
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MethodConstant(ciMethod* value) { _value = value; } |
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ciMethod* value() const { return _value; } |
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virtual bool is_constant() const { return true; } |
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virtual MethodConstant* as_MethodConstant() { return this; } |
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virtual ciMetadata* constant_value() const { return _value; } |
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}; |
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class MethodDataType: public MetadataType { |
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virtual MethodDataType* as_MethodDataType() { return this; } |
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}; |
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class MethodDataConstant: public MethodDataType { |
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private: |
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ciMethodData* _value; |
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public: |
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MethodDataConstant(ciMethodData* value) { _value = value; } |
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ciMethodData* value() const { return _value; } |
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virtual bool is_constant() const { return true; } |
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virtual MethodDataConstant* as_MethodDataConstant() { return this; } |
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virtual ciMetadata* constant_value() const { return _value; } |
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}; |
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1 | 460 |
class AddressType: public ValueType { |
461 |
public: |
|
462 |
AddressType(): ValueType(addressTag, 1) {} |
|
463 |
virtual ValueType* base() const { return addressType; } |
|
464 |
virtual const char tchar() const { return 'r'; } |
|
465 |
virtual const char* name() const { return "address"; } |
|
466 |
virtual AddressType* as_AddressType() { return this; } |
|
467 |
}; |
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468 |
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470 |
class AddressConstant: public AddressType { |
|
471 |
private: |
|
472 |
jint _value; |
|
473 |
||
474 |
public: |
|
475 |
AddressConstant(jint value) { _value = value; } |
|
476 |
||
477 |
jint value() const { return _value; } |
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478 |
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479 |
virtual bool is_constant() const { return true; } |
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480 |
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481 |
virtual AddressConstant* as_AddressConstant() { return this; } |
|
482 |
}; |
|
483 |
||
484 |
||
485 |
class IllegalType: public ValueType { |
|
486 |
public: |
|
487 |
IllegalType(): ValueType(illegalTag, -1) {} |
|
488 |
virtual ValueType* base() const { return illegalType; } |
|
489 |
virtual const char tchar() const { return ' '; } |
|
490 |
virtual const char* name() const { return "illegal"; } |
|
491 |
virtual IllegalType* as_IllegalType() { return this; } |
|
492 |
}; |
|
493 |
||
494 |
||
495 |
// conversion between ValueTypes, BasicTypes, and ciConstants |
|
496 |
ValueType* as_ValueType(BasicType type); |
|
497 |
ValueType* as_ValueType(ciConstant value); |
|
498 |
BasicType as_BasicType(ValueType* type); |
|
499 |
||
500 |
inline ValueType* as_ValueType(ciType* type) { return as_ValueType(type->basic_type()); } |
|
7397 | 501 |
|
502 |
#endif // SHARE_VM_C1_C1_VALUETYPE_HPP |