Mercurial > hg > graal-compiler
annotate src/share/vm/c1/c1_ValueType.cpp @ 6781:b711844284e2
7200092: Make NMT a bit friendlier to work with
Reviewed-by: kvn, ysr, azeemj
author | nloodin |
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date | Fri, 21 Sep 2012 10:56:28 +0200 |
parents | 8a02ca5e5576 |
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rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "c1/c1_ValueType.hpp" | |
27 #include "ci/ciArray.hpp" | |
28 #include "ci/ciInstance.hpp" | |
29 #include "ci/ciNullObject.hpp" | |
0 | 30 |
31 | |
32 // predefined types | |
33 VoidType* voidType = NULL; | |
34 IntType* intType = NULL; | |
35 LongType* longType = NULL; | |
36 FloatType* floatType = NULL; | |
37 DoubleType* doubleType = NULL; | |
38 ObjectType* objectType = NULL; | |
39 ArrayType* arrayType = NULL; | |
40 InstanceType* instanceType = NULL; | |
41 ClassType* classType = NULL; | |
42 AddressType* addressType = NULL; | |
43 IllegalType* illegalType = NULL; | |
44 | |
45 | |
46 // predefined constants | |
47 IntConstant* intZero = NULL; | |
48 IntConstant* intOne = NULL; | |
49 ObjectConstant* objectNull = NULL; | |
50 | |
51 | |
1584 | 52 void ValueType::initialize(Arena* arena) { |
0 | 53 // Note: Must initialize all types for each compilation |
54 // as they are allocated within a ResourceMark! | |
55 | |
56 // types | |
1584 | 57 voidType = new (arena) VoidType(); |
58 intType = new (arena) IntType(); | |
59 longType = new (arena) LongType(); | |
60 floatType = new (arena) FloatType(); | |
61 doubleType = new (arena) DoubleType(); | |
62 objectType = new (arena) ObjectType(); | |
63 arrayType = new (arena) ArrayType(); | |
64 instanceType = new (arena) InstanceType(); | |
65 classType = new (arena) ClassType(); | |
66 addressType = new (arena) AddressType(); | |
67 illegalType = new (arena) IllegalType(); | |
0 | 68 |
1584 | 69 intZero = new (arena) IntConstant(0); |
70 intOne = new (arena) IntConstant(1); | |
71 objectNull = new (arena) ObjectConstant(ciNullObject::make()); | |
0 | 72 }; |
73 | |
74 | |
75 ValueType* ValueType::meet(ValueType* y) const { | |
76 // incomplete & conservative solution for now - fix this! | |
77 assert(tag() == y->tag(), "types must match"); | |
78 return base(); | |
79 } | |
80 | |
81 | |
82 ValueType* ValueType::join(ValueType* y) const { | |
83 Unimplemented(); | |
84 return NULL; | |
85 } | |
86 | |
87 | |
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88 ciType* ObjectConstant::exact_type() const { |
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89 ciObject* c = constant_value(); |
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90 return (c != NULL && !c->is_null_object()) ? c->klass() : NULL; |
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91 } |
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92 ciType* ArrayConstant::exact_type() const { |
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93 ciObject* c = constant_value(); |
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94 return (c != NULL && !c->is_null_object()) ? c->klass() : NULL; |
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95 } |
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96 ciType* InstanceConstant::exact_type() const { |
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97 ciObject* c = constant_value(); |
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98 return (c != NULL && !c->is_null_object()) ? c->klass() : NULL; |
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99 } |
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100 ciType* ClassConstant::exact_type() const { |
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101 return Compilation::current()->env()->Class_klass(); |
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102 } |
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103 |
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104 |
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105 jobject ObjectType::encoding() const { |
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106 assert(is_constant(), "must be"); |
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107 return constant_value()->constant_encoding(); |
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108 } |
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109 |
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110 bool ObjectType::is_loaded() const { |
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111 assert(is_constant(), "must be"); |
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112 return constant_value()->is_loaded(); |
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113 } |
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114 |
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115 bool MetadataType::is_loaded() const { |
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116 assert(is_constant(), "must be"); |
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117 return constant_value()->is_loaded(); |
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118 } |
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119 |
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120 ciObject* ObjectConstant::constant_value() const { return _value; } |
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121 ciObject* ArrayConstant::constant_value() const { return _value; } |
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122 ciObject* InstanceConstant::constant_value() const { return _value; } |
0 | 123 |
124 ValueType* as_ValueType(BasicType type) { | |
125 switch (type) { | |
126 case T_VOID : return voidType; | |
127 case T_BYTE : // fall through | |
128 case T_CHAR : // fall through | |
129 case T_SHORT : // fall through | |
130 case T_BOOLEAN: // fall through | |
131 case T_INT : return intType; | |
132 case T_LONG : return longType; | |
133 case T_FLOAT : return floatType; | |
134 case T_DOUBLE : return doubleType; | |
135 case T_ARRAY : return arrayType; | |
136 case T_OBJECT : return objectType; | |
137 case T_ADDRESS: return addressType; | |
138 case T_ILLEGAL: return illegalType; | |
139 } | |
140 ShouldNotReachHere(); | |
141 return illegalType; | |
142 } | |
143 | |
144 | |
145 ValueType* as_ValueType(ciConstant value) { | |
146 switch (value.basic_type()) { | |
147 case T_BYTE : // fall through | |
148 case T_CHAR : // fall through | |
149 case T_SHORT : // fall through | |
150 case T_BOOLEAN: // fall through | |
151 case T_INT : return new IntConstant (value.as_int ()); | |
152 case T_LONG : return new LongConstant (value.as_long ()); | |
153 case T_FLOAT : return new FloatConstant (value.as_float ()); | |
154 case T_DOUBLE : return new DoubleConstant(value.as_double()); | |
155 case T_ARRAY : // fall through (ciConstant doesn't have an array accessor) | |
156 case T_OBJECT : return new ObjectConstant(value.as_object()); | |
157 } | |
158 ShouldNotReachHere(); | |
159 return illegalType; | |
160 } | |
161 | |
162 | |
163 BasicType as_BasicType(ValueType* type) { | |
164 switch (type->tag()) { | |
165 case voidTag: return T_VOID; | |
166 case intTag: return T_INT; | |
167 case longTag: return T_LONG; | |
168 case floatTag: return T_FLOAT; | |
169 case doubleTag: return T_DOUBLE; | |
170 case objectTag: return T_OBJECT; | |
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171 case metaDataTag:return T_METADATA; |
0 | 172 case addressTag: return T_ADDRESS; |
173 case illegalTag: return T_ILLEGAL; | |
174 } | |
175 ShouldNotReachHere(); | |
176 return T_ILLEGAL; | |
177 } |