Thu, 21 Nov 2013 12:30:35 -0800
Merge
duke@435 | 1 | /* |
coleenp@4037 | 2 | * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #include "precompiled.hpp" |
stefank@2314 | 26 | #include "c1/c1_ValueType.hpp" |
stefank@2314 | 27 | #include "ci/ciArray.hpp" |
stefank@2314 | 28 | #include "ci/ciInstance.hpp" |
stefank@2314 | 29 | #include "ci/ciNullObject.hpp" |
duke@435 | 30 | |
duke@435 | 31 | |
duke@435 | 32 | // predefined types |
duke@435 | 33 | VoidType* voidType = NULL; |
duke@435 | 34 | IntType* intType = NULL; |
duke@435 | 35 | LongType* longType = NULL; |
duke@435 | 36 | FloatType* floatType = NULL; |
duke@435 | 37 | DoubleType* doubleType = NULL; |
duke@435 | 38 | ObjectType* objectType = NULL; |
duke@435 | 39 | ArrayType* arrayType = NULL; |
duke@435 | 40 | InstanceType* instanceType = NULL; |
duke@435 | 41 | ClassType* classType = NULL; |
duke@435 | 42 | AddressType* addressType = NULL; |
duke@435 | 43 | IllegalType* illegalType = NULL; |
duke@435 | 44 | |
duke@435 | 45 | |
duke@435 | 46 | // predefined constants |
duke@435 | 47 | IntConstant* intZero = NULL; |
duke@435 | 48 | IntConstant* intOne = NULL; |
duke@435 | 49 | ObjectConstant* objectNull = NULL; |
duke@435 | 50 | |
duke@435 | 51 | |
iveresov@1939 | 52 | void ValueType::initialize(Arena* arena) { |
duke@435 | 53 | // Note: Must initialize all types for each compilation |
duke@435 | 54 | // as they are allocated within a ResourceMark! |
duke@435 | 55 | |
duke@435 | 56 | // types |
iveresov@1939 | 57 | voidType = new (arena) VoidType(); |
iveresov@1939 | 58 | intType = new (arena) IntType(); |
iveresov@1939 | 59 | longType = new (arena) LongType(); |
iveresov@1939 | 60 | floatType = new (arena) FloatType(); |
iveresov@1939 | 61 | doubleType = new (arena) DoubleType(); |
iveresov@1939 | 62 | objectType = new (arena) ObjectType(); |
iveresov@1939 | 63 | arrayType = new (arena) ArrayType(); |
iveresov@1939 | 64 | instanceType = new (arena) InstanceType(); |
iveresov@1939 | 65 | classType = new (arena) ClassType(); |
iveresov@1939 | 66 | addressType = new (arena) AddressType(); |
iveresov@1939 | 67 | illegalType = new (arena) IllegalType(); |
duke@435 | 68 | |
iveresov@1939 | 69 | intZero = new (arena) IntConstant(0); |
iveresov@1939 | 70 | intOne = new (arena) IntConstant(1); |
iveresov@1939 | 71 | objectNull = new (arena) ObjectConstant(ciNullObject::make()); |
duke@435 | 72 | }; |
duke@435 | 73 | |
duke@435 | 74 | |
duke@435 | 75 | ValueType* ValueType::meet(ValueType* y) const { |
duke@435 | 76 | // incomplete & conservative solution for now - fix this! |
duke@435 | 77 | assert(tag() == y->tag(), "types must match"); |
duke@435 | 78 | return base(); |
duke@435 | 79 | } |
duke@435 | 80 | |
duke@435 | 81 | |
duke@435 | 82 | ValueType* ValueType::join(ValueType* y) const { |
duke@435 | 83 | Unimplemented(); |
duke@435 | 84 | return NULL; |
duke@435 | 85 | } |
duke@435 | 86 | |
duke@435 | 87 | |
twisti@3969 | 88 | ciType* ObjectConstant::exact_type() const { |
twisti@3969 | 89 | ciObject* c = constant_value(); |
twisti@3969 | 90 | return (c != NULL && !c->is_null_object()) ? c->klass() : NULL; |
twisti@3969 | 91 | } |
twisti@3969 | 92 | ciType* ArrayConstant::exact_type() const { |
twisti@3969 | 93 | ciObject* c = constant_value(); |
twisti@3969 | 94 | return (c != NULL && !c->is_null_object()) ? c->klass() : NULL; |
twisti@3969 | 95 | } |
twisti@3969 | 96 | ciType* InstanceConstant::exact_type() const { |
twisti@3969 | 97 | ciObject* c = constant_value(); |
twisti@3969 | 98 | return (c != NULL && !c->is_null_object()) ? c->klass() : NULL; |
twisti@3969 | 99 | } |
twisti@3969 | 100 | ciType* ClassConstant::exact_type() const { |
coleenp@4037 | 101 | return Compilation::current()->env()->Class_klass(); |
twisti@3969 | 102 | } |
twisti@3969 | 103 | |
duke@435 | 104 | |
coleenp@4037 | 105 | jobject ObjectType::encoding() const { |
coleenp@4037 | 106 | assert(is_constant(), "must be"); |
coleenp@4037 | 107 | return constant_value()->constant_encoding(); |
coleenp@4037 | 108 | } |
coleenp@4037 | 109 | |
coleenp@4037 | 110 | bool ObjectType::is_loaded() const { |
coleenp@4037 | 111 | assert(is_constant(), "must be"); |
coleenp@4037 | 112 | return constant_value()->is_loaded(); |
coleenp@4037 | 113 | } |
coleenp@4037 | 114 | |
coleenp@4037 | 115 | bool MetadataType::is_loaded() const { |
coleenp@4037 | 116 | assert(is_constant(), "must be"); |
coleenp@4037 | 117 | return constant_value()->is_loaded(); |
coleenp@4037 | 118 | } |
coleenp@4037 | 119 | |
coleenp@4037 | 120 | ciObject* ObjectConstant::constant_value() const { return _value; } |
coleenp@4037 | 121 | ciObject* ArrayConstant::constant_value() const { return _value; } |
coleenp@4037 | 122 | ciObject* InstanceConstant::constant_value() const { return _value; } |
coleenp@4037 | 123 | |
duke@435 | 124 | ValueType* as_ValueType(BasicType type) { |
duke@435 | 125 | switch (type) { |
duke@435 | 126 | case T_VOID : return voidType; |
duke@435 | 127 | case T_BYTE : // fall through |
duke@435 | 128 | case T_CHAR : // fall through |
duke@435 | 129 | case T_SHORT : // fall through |
duke@435 | 130 | case T_BOOLEAN: // fall through |
duke@435 | 131 | case T_INT : return intType; |
duke@435 | 132 | case T_LONG : return longType; |
duke@435 | 133 | case T_FLOAT : return floatType; |
duke@435 | 134 | case T_DOUBLE : return doubleType; |
duke@435 | 135 | case T_ARRAY : return arrayType; |
duke@435 | 136 | case T_OBJECT : return objectType; |
duke@435 | 137 | case T_ADDRESS: return addressType; |
duke@435 | 138 | case T_ILLEGAL: return illegalType; |
duke@435 | 139 | } |
duke@435 | 140 | ShouldNotReachHere(); |
duke@435 | 141 | return illegalType; |
duke@435 | 142 | } |
duke@435 | 143 | |
duke@435 | 144 | |
duke@435 | 145 | ValueType* as_ValueType(ciConstant value) { |
duke@435 | 146 | switch (value.basic_type()) { |
duke@435 | 147 | case T_BYTE : // fall through |
duke@435 | 148 | case T_CHAR : // fall through |
duke@435 | 149 | case T_SHORT : // fall through |
duke@435 | 150 | case T_BOOLEAN: // fall through |
duke@435 | 151 | case T_INT : return new IntConstant (value.as_int ()); |
duke@435 | 152 | case T_LONG : return new LongConstant (value.as_long ()); |
duke@435 | 153 | case T_FLOAT : return new FloatConstant (value.as_float ()); |
duke@435 | 154 | case T_DOUBLE : return new DoubleConstant(value.as_double()); |
duke@435 | 155 | case T_ARRAY : // fall through (ciConstant doesn't have an array accessor) |
duke@435 | 156 | case T_OBJECT : return new ObjectConstant(value.as_object()); |
duke@435 | 157 | } |
duke@435 | 158 | ShouldNotReachHere(); |
duke@435 | 159 | return illegalType; |
duke@435 | 160 | } |
duke@435 | 161 | |
duke@435 | 162 | |
duke@435 | 163 | BasicType as_BasicType(ValueType* type) { |
duke@435 | 164 | switch (type->tag()) { |
duke@435 | 165 | case voidTag: return T_VOID; |
duke@435 | 166 | case intTag: return T_INT; |
duke@435 | 167 | case longTag: return T_LONG; |
duke@435 | 168 | case floatTag: return T_FLOAT; |
duke@435 | 169 | case doubleTag: return T_DOUBLE; |
duke@435 | 170 | case objectTag: return T_OBJECT; |
roland@4051 | 171 | case metaDataTag:return T_METADATA; |
duke@435 | 172 | case addressTag: return T_ADDRESS; |
duke@435 | 173 | case illegalTag: return T_ILLEGAL; |
duke@435 | 174 | } |
duke@435 | 175 | ShouldNotReachHere(); |
duke@435 | 176 | return T_ILLEGAL; |
duke@435 | 177 | } |