Mercurial > hg > truffle
annotate src/share/vm/opto/type.cpp @ 12604:7328f7def427
Support more convert operations.
author | Roland Schatz <roland.schatz@oracle.com> |
---|---|
date | Fri, 25 Oct 2013 15:44:35 +0200 |
parents | c9ccd7b85f20 |
children | b2ee5dc63353 |
rev | line source |
---|---|
0 | 1 /* |
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
6890
diff
changeset
|
2 * Copyright (c) 1997, 2013, 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1340
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1340
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1340
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
26 #include "ci/ciMethodData.hpp" |
1972 | 27 #include "ci/ciTypeFlow.hpp" |
28 #include "classfile/symbolTable.hpp" | |
29 #include "classfile/systemDictionary.hpp" | |
30 #include "compiler/compileLog.hpp" | |
31 #include "libadt/dict.hpp" | |
32 #include "memory/gcLocker.hpp" | |
33 #include "memory/oopFactory.hpp" | |
34 #include "memory/resourceArea.hpp" | |
35 #include "oops/instanceKlass.hpp" | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
36 #include "oops/instanceMirrorKlass.hpp" |
1972 | 37 #include "oops/objArrayKlass.hpp" |
38 #include "oops/typeArrayKlass.hpp" | |
39 #include "opto/matcher.hpp" | |
40 #include "opto/node.hpp" | |
41 #include "opto/opcodes.hpp" | |
42 #include "opto/type.hpp" | |
43 | |
0 | 44 // Portions of code courtesy of Clifford Click |
45 | |
46 // Optimization - Graph Style | |
47 | |
48 // Dictionary of types shared among compilations. | |
49 Dict* Type::_shared_type_dict = NULL; | |
50 | |
51 // Array which maps compiler types to Basic Types | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
52 Type::TypeInfo Type::_type_info[Type::lastype] = { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
53 { Bad, T_ILLEGAL, "bad", false, Node::NotAMachineReg, relocInfo::none }, // Bad |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
54 { Control, T_ILLEGAL, "control", false, 0, relocInfo::none }, // Control |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
55 { Bottom, T_VOID, "top", false, 0, relocInfo::none }, // Top |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
56 { Bad, T_INT, "int:", false, Op_RegI, relocInfo::none }, // Int |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
57 { Bad, T_LONG, "long:", false, Op_RegL, relocInfo::none }, // Long |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
58 { Half, T_VOID, "half", false, 0, relocInfo::none }, // Half |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
59 { Bad, T_NARROWOOP, "narrowoop:", false, Op_RegN, relocInfo::none }, // NarrowOop |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
60 { Bad, T_NARROWKLASS,"narrowklass:", false, Op_RegN, relocInfo::none }, // NarrowKlass |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
61 { Bad, T_ILLEGAL, "tuple:", false, Node::NotAMachineReg, relocInfo::none }, // Tuple |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
62 { Bad, T_ARRAY, "array:", false, Node::NotAMachineReg, relocInfo::none }, // Array |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
63 |
6890 | 64 #ifndef SPARC |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
65 { Bad, T_ILLEGAL, "vectors:", false, Op_VecS, relocInfo::none }, // VectorS |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
66 { Bad, T_ILLEGAL, "vectord:", false, Op_VecD, relocInfo::none }, // VectorD |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
67 { Bad, T_ILLEGAL, "vectorx:", false, Op_VecX, relocInfo::none }, // VectorX |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
68 { Bad, T_ILLEGAL, "vectory:", false, Op_VecY, relocInfo::none }, // VectorY |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
69 #else |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
70 { Bad, T_ILLEGAL, "vectors:", false, 0, relocInfo::none }, // VectorS |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
71 { Bad, T_ILLEGAL, "vectord:", false, Op_RegD, relocInfo::none }, // VectorD |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
72 { Bad, T_ILLEGAL, "vectorx:", false, 0, relocInfo::none }, // VectorX |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
73 { Bad, T_ILLEGAL, "vectory:", false, 0, relocInfo::none }, // VectorY |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
74 #endif // IA32 || AMD64 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
75 { Bad, T_ADDRESS, "anyptr:", false, Op_RegP, relocInfo::none }, // AnyPtr |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
76 { Bad, T_ADDRESS, "rawptr:", false, Op_RegP, relocInfo::none }, // RawPtr |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
77 { Bad, T_OBJECT, "oop:", true, Op_RegP, relocInfo::oop_type }, // OopPtr |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
78 { Bad, T_OBJECT, "inst:", true, Op_RegP, relocInfo::oop_type }, // InstPtr |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
79 { Bad, T_OBJECT, "ary:", true, Op_RegP, relocInfo::oop_type }, // AryPtr |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
80 { Bad, T_METADATA, "metadata:", false, Op_RegP, relocInfo::metadata_type }, // MetadataPtr |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
81 { Bad, T_METADATA, "klass:", false, Op_RegP, relocInfo::metadata_type }, // KlassPtr |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
82 { Bad, T_OBJECT, "func", false, 0, relocInfo::none }, // Function |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
83 { Abio, T_ILLEGAL, "abIO", false, 0, relocInfo::none }, // Abio |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
84 { Return_Address, T_ADDRESS, "return_address",false, Op_RegP, relocInfo::none }, // Return_Address |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
85 { Memory, T_ILLEGAL, "memory", false, 0, relocInfo::none }, // Memory |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
86 { FloatBot, T_FLOAT, "float_top", false, Op_RegF, relocInfo::none }, // FloatTop |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
87 { FloatCon, T_FLOAT, "ftcon:", false, Op_RegF, relocInfo::none }, // FloatCon |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
88 { FloatTop, T_FLOAT, "float", false, Op_RegF, relocInfo::none }, // FloatBot |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
89 { DoubleBot, T_DOUBLE, "double_top", false, Op_RegD, relocInfo::none }, // DoubleTop |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
90 { DoubleCon, T_DOUBLE, "dblcon:", false, Op_RegD, relocInfo::none }, // DoubleCon |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
91 { DoubleTop, T_DOUBLE, "double", false, Op_RegD, relocInfo::none }, // DoubleBot |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
92 { Top, T_ILLEGAL, "bottom", false, 0, relocInfo::none } // Bottom |
0 | 93 }; |
94 | |
95 // Map ideal registers (machine types) to ideal types | |
96 const Type *Type::mreg2type[_last_machine_leaf]; | |
97 | |
98 // Map basic types to canonical Type* pointers. | |
99 const Type* Type:: _const_basic_type[T_CONFLICT+1]; | |
100 | |
101 // Map basic types to constant-zero Types. | |
102 const Type* Type:: _zero_type[T_CONFLICT+1]; | |
103 | |
104 // Map basic types to array-body alias types. | |
105 const TypeAryPtr* TypeAryPtr::_array_body_type[T_CONFLICT+1]; | |
106 | |
107 //============================================================================= | |
108 // Convenience common pre-built types. | |
109 const Type *Type::ABIO; // State-of-machine only | |
110 const Type *Type::BOTTOM; // All values | |
111 const Type *Type::CONTROL; // Control only | |
112 const Type *Type::DOUBLE; // All doubles | |
113 const Type *Type::FLOAT; // All floats | |
114 const Type *Type::HALF; // Placeholder half of doublewide type | |
115 const Type *Type::MEMORY; // Abstract store only | |
116 const Type *Type::RETURN_ADDRESS; | |
117 const Type *Type::TOP; // No values in set | |
118 | |
119 //------------------------------get_const_type--------------------------- | |
120 const Type* Type::get_const_type(ciType* type) { | |
121 if (type == NULL) { | |
122 return NULL; | |
123 } else if (type->is_primitive_type()) { | |
124 return get_const_basic_type(type->basic_type()); | |
125 } else { | |
126 return TypeOopPtr::make_from_klass(type->as_klass()); | |
127 } | |
128 } | |
129 | |
130 //---------------------------array_element_basic_type--------------------------------- | |
131 // Mapping to the array element's basic type. | |
132 BasicType Type::array_element_basic_type() const { | |
133 BasicType bt = basic_type(); | |
134 if (bt == T_INT) { | |
135 if (this == TypeInt::INT) return T_INT; | |
136 if (this == TypeInt::CHAR) return T_CHAR; | |
137 if (this == TypeInt::BYTE) return T_BYTE; | |
138 if (this == TypeInt::BOOL) return T_BOOLEAN; | |
139 if (this == TypeInt::SHORT) return T_SHORT; | |
140 return T_VOID; | |
141 } | |
142 return bt; | |
143 } | |
144 | |
145 //---------------------------get_typeflow_type--------------------------------- | |
146 // Import a type produced by ciTypeFlow. | |
147 const Type* Type::get_typeflow_type(ciType* type) { | |
148 switch (type->basic_type()) { | |
149 | |
150 case ciTypeFlow::StateVector::T_BOTTOM: | |
151 assert(type == ciTypeFlow::StateVector::bottom_type(), ""); | |
152 return Type::BOTTOM; | |
153 | |
154 case ciTypeFlow::StateVector::T_TOP: | |
155 assert(type == ciTypeFlow::StateVector::top_type(), ""); | |
156 return Type::TOP; | |
157 | |
158 case ciTypeFlow::StateVector::T_NULL: | |
159 assert(type == ciTypeFlow::StateVector::null_type(), ""); | |
160 return TypePtr::NULL_PTR; | |
161 | |
162 case ciTypeFlow::StateVector::T_LONG2: | |
163 // The ciTypeFlow pass pushes a long, then the half. | |
164 // We do the same. | |
165 assert(type == ciTypeFlow::StateVector::long2_type(), ""); | |
166 return TypeInt::TOP; | |
167 | |
168 case ciTypeFlow::StateVector::T_DOUBLE2: | |
169 // The ciTypeFlow pass pushes double, then the half. | |
170 // Our convention is the same. | |
171 assert(type == ciTypeFlow::StateVector::double2_type(), ""); | |
172 return Type::TOP; | |
173 | |
174 case T_ADDRESS: | |
175 assert(type->is_return_address(), ""); | |
176 return TypeRawPtr::make((address)(intptr_t)type->as_return_address()->bci()); | |
177 | |
178 default: | |
179 // make sure we did not mix up the cases: | |
180 assert(type != ciTypeFlow::StateVector::bottom_type(), ""); | |
181 assert(type != ciTypeFlow::StateVector::top_type(), ""); | |
182 assert(type != ciTypeFlow::StateVector::null_type(), ""); | |
183 assert(type != ciTypeFlow::StateVector::long2_type(), ""); | |
184 assert(type != ciTypeFlow::StateVector::double2_type(), ""); | |
185 assert(!type->is_return_address(), ""); | |
186 | |
187 return Type::get_const_type(type); | |
188 } | |
189 } | |
190 | |
191 | |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
192 //-----------------------make_from_constant------------------------------------ |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
193 const Type* Type::make_from_constant(ciConstant constant, |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
194 bool require_constant, bool is_autobox_cache) { |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
195 switch (constant.basic_type()) { |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
196 case T_BOOLEAN: return TypeInt::make(constant.as_boolean()); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
197 case T_CHAR: return TypeInt::make(constant.as_char()); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
198 case T_BYTE: return TypeInt::make(constant.as_byte()); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
199 case T_SHORT: return TypeInt::make(constant.as_short()); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
200 case T_INT: return TypeInt::make(constant.as_int()); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
201 case T_LONG: return TypeLong::make(constant.as_long()); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
202 case T_FLOAT: return TypeF::make(constant.as_float()); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
203 case T_DOUBLE: return TypeD::make(constant.as_double()); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
204 case T_ARRAY: |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
205 case T_OBJECT: |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
206 { |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
207 // cases: |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
208 // can_be_constant = (oop not scavengable || ScavengeRootsInCode != 0) |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
209 // should_be_constant = (oop not scavengable || ScavengeRootsInCode >= 2) |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
210 // An oop is not scavengable if it is in the perm gen. |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
211 ciObject* oop_constant = constant.as_object(); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
212 if (oop_constant->is_null_object()) { |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
213 return Type::get_zero_type(T_OBJECT); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
214 } else if (require_constant || oop_constant->should_be_constant()) { |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
215 return TypeOopPtr::make_from_constant(oop_constant, require_constant, is_autobox_cache); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
216 } |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
217 } |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
218 } |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
219 // Fall through to failure |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
220 return NULL; |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
221 } |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
222 |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
223 |
0 | 224 //------------------------------make------------------------------------------- |
225 // Create a simple Type, with default empty symbol sets. Then hashcons it | |
226 // and look for an existing copy in the type dictionary. | |
227 const Type *Type::make( enum TYPES t ) { | |
228 return (new Type(t))->hashcons(); | |
229 } | |
223 | 230 |
0 | 231 //------------------------------cmp-------------------------------------------- |
232 int Type::cmp( const Type *const t1, const Type *const t2 ) { | |
233 if( t1->_base != t2->_base ) | |
234 return 1; // Missed badly | |
235 assert(t1 != t2 || t1->eq(t2), "eq must be reflexive"); | |
236 return !t1->eq(t2); // Return ZERO if equal | |
237 } | |
238 | |
239 //------------------------------hash------------------------------------------- | |
240 int Type::uhash( const Type *const t ) { | |
241 return t->hash(); | |
242 } | |
243 | |
1620
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
244 #define SMALLINT ((juint)3) // a value too insignificant to consider widening |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
245 |
0 | 246 //--------------------------Initialize_shared---------------------------------- |
247 void Type::Initialize_shared(Compile* current) { | |
248 // This method does not need to be locked because the first system | |
249 // compilations (stub compilations) occur serially. If they are | |
250 // changed to proceed in parallel, then this section will need | |
251 // locking. | |
252 | |
253 Arena* save = current->type_arena(); | |
6197 | 254 Arena* shared_type_arena = new (mtCompiler)Arena(); |
0 | 255 |
256 current->set_type_arena(shared_type_arena); | |
257 _shared_type_dict = | |
258 new (shared_type_arena) Dict( (CmpKey)Type::cmp, (Hash)Type::uhash, | |
259 shared_type_arena, 128 ); | |
260 current->set_type_dict(_shared_type_dict); | |
261 | |
262 // Make shared pre-built types. | |
263 CONTROL = make(Control); // Control only | |
264 TOP = make(Top); // No values in set | |
265 MEMORY = make(Memory); // Abstract store only | |
266 ABIO = make(Abio); // State-of-machine only | |
267 RETURN_ADDRESS=make(Return_Address); | |
268 FLOAT = make(FloatBot); // All floats | |
269 DOUBLE = make(DoubleBot); // All doubles | |
270 BOTTOM = make(Bottom); // Everything | |
271 HALF = make(Half); // Placeholder half of doublewide type | |
272 | |
273 TypeF::ZERO = TypeF::make(0.0); // Float 0 (positive zero) | |
274 TypeF::ONE = TypeF::make(1.0); // Float 1 | |
275 | |
276 TypeD::ZERO = TypeD::make(0.0); // Double 0 (positive zero) | |
277 TypeD::ONE = TypeD::make(1.0); // Double 1 | |
278 | |
279 TypeInt::MINUS_1 = TypeInt::make(-1); // -1 | |
280 TypeInt::ZERO = TypeInt::make( 0); // 0 | |
281 TypeInt::ONE = TypeInt::make( 1); // 1 | |
282 TypeInt::BOOL = TypeInt::make(0,1, WidenMin); // 0 or 1, FALSE or TRUE. | |
283 TypeInt::CC = TypeInt::make(-1, 1, WidenMin); // -1, 0 or 1, condition codes | |
284 TypeInt::CC_LT = TypeInt::make(-1,-1, WidenMin); // == TypeInt::MINUS_1 | |
285 TypeInt::CC_GT = TypeInt::make( 1, 1, WidenMin); // == TypeInt::ONE | |
286 TypeInt::CC_EQ = TypeInt::make( 0, 0, WidenMin); // == TypeInt::ZERO | |
287 TypeInt::CC_LE = TypeInt::make(-1, 0, WidenMin); | |
288 TypeInt::CC_GE = TypeInt::make( 0, 1, WidenMin); // == TypeInt::BOOL | |
289 TypeInt::BYTE = TypeInt::make(-128,127, WidenMin); // Bytes | |
624 | 290 TypeInt::UBYTE = TypeInt::make(0, 255, WidenMin); // Unsigned Bytes |
0 | 291 TypeInt::CHAR = TypeInt::make(0,65535, WidenMin); // Java chars |
292 TypeInt::SHORT = TypeInt::make(-32768,32767, WidenMin); // Java shorts | |
293 TypeInt::POS = TypeInt::make(0,max_jint, WidenMin); // Non-neg values | |
294 TypeInt::POS1 = TypeInt::make(1,max_jint, WidenMin); // Positive values | |
295 TypeInt::INT = TypeInt::make(min_jint,max_jint, WidenMax); // 32-bit integers | |
296 TypeInt::SYMINT = TypeInt::make(-max_jint,max_jint,WidenMin); // symmetric range | |
297 // CmpL is overloaded both as the bytecode computation returning | |
298 // a trinary (-1,0,+1) integer result AND as an efficient long | |
299 // compare returning optimizer ideal-type flags. | |
300 assert( TypeInt::CC_LT == TypeInt::MINUS_1, "types must match for CmpL to work" ); | |
301 assert( TypeInt::CC_GT == TypeInt::ONE, "types must match for CmpL to work" ); | |
302 assert( TypeInt::CC_EQ == TypeInt::ZERO, "types must match for CmpL to work" ); | |
303 assert( TypeInt::CC_GE == TypeInt::BOOL, "types must match for CmpL to work" ); | |
1620
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
304 assert( (juint)(TypeInt::CC->_hi - TypeInt::CC->_lo) <= SMALLINT, "CC is truly small"); |
0 | 305 |
306 TypeLong::MINUS_1 = TypeLong::make(-1); // -1 | |
307 TypeLong::ZERO = TypeLong::make( 0); // 0 | |
308 TypeLong::ONE = TypeLong::make( 1); // 1 | |
309 TypeLong::POS = TypeLong::make(0,max_jlong, WidenMin); // Non-neg values | |
310 TypeLong::LONG = TypeLong::make(min_jlong,max_jlong,WidenMax); // 64-bit integers | |
311 TypeLong::INT = TypeLong::make((jlong)min_jint,(jlong)max_jint,WidenMin); | |
312 TypeLong::UINT = TypeLong::make(0,(jlong)max_juint,WidenMin); | |
313 | |
314 const Type **fboth =(const Type**)shared_type_arena->Amalloc_4(2*sizeof(Type*)); | |
315 fboth[0] = Type::CONTROL; | |
316 fboth[1] = Type::CONTROL; | |
317 TypeTuple::IFBOTH = TypeTuple::make( 2, fboth ); | |
318 | |
319 const Type **ffalse =(const Type**)shared_type_arena->Amalloc_4(2*sizeof(Type*)); | |
320 ffalse[0] = Type::CONTROL; | |
321 ffalse[1] = Type::TOP; | |
322 TypeTuple::IFFALSE = TypeTuple::make( 2, ffalse ); | |
323 | |
324 const Type **fneither =(const Type**)shared_type_arena->Amalloc_4(2*sizeof(Type*)); | |
325 fneither[0] = Type::TOP; | |
326 fneither[1] = Type::TOP; | |
327 TypeTuple::IFNEITHER = TypeTuple::make( 2, fneither ); | |
328 | |
329 const Type **ftrue =(const Type**)shared_type_arena->Amalloc_4(2*sizeof(Type*)); | |
330 ftrue[0] = Type::TOP; | |
331 ftrue[1] = Type::CONTROL; | |
332 TypeTuple::IFTRUE = TypeTuple::make( 2, ftrue ); | |
333 | |
334 const Type **floop =(const Type**)shared_type_arena->Amalloc_4(2*sizeof(Type*)); | |
335 floop[0] = Type::CONTROL; | |
336 floop[1] = TypeInt::INT; | |
337 TypeTuple::LOOPBODY = TypeTuple::make( 2, floop ); | |
338 | |
339 TypePtr::NULL_PTR= TypePtr::make( AnyPtr, TypePtr::Null, 0 ); | |
340 TypePtr::NOTNULL = TypePtr::make( AnyPtr, TypePtr::NotNull, OffsetBot ); | |
341 TypePtr::BOTTOM = TypePtr::make( AnyPtr, TypePtr::BotPTR, OffsetBot ); | |
342 | |
343 TypeRawPtr::BOTTOM = TypeRawPtr::make( TypePtr::BotPTR ); | |
344 TypeRawPtr::NOTNULL= TypeRawPtr::make( TypePtr::NotNull ); | |
345 | |
346 const Type **fmembar = TypeTuple::fields(0); | |
347 TypeTuple::MEMBAR = TypeTuple::make(TypeFunc::Parms+0, fmembar); | |
348 | |
349 const Type **fsc = (const Type**)shared_type_arena->Amalloc_4(2*sizeof(Type*)); | |
350 fsc[0] = TypeInt::CC; | |
351 fsc[1] = Type::MEMORY; | |
352 TypeTuple::STORECONDITIONAL = TypeTuple::make(2, fsc); | |
353 | |
354 TypeInstPtr::NOTNULL = TypeInstPtr::make(TypePtr::NotNull, current->env()->Object_klass()); | |
355 TypeInstPtr::BOTTOM = TypeInstPtr::make(TypePtr::BotPTR, current->env()->Object_klass()); | |
356 TypeInstPtr::MIRROR = TypeInstPtr::make(TypePtr::NotNull, current->env()->Class_klass()); | |
357 TypeInstPtr::MARK = TypeInstPtr::make(TypePtr::BotPTR, current->env()->Object_klass(), | |
358 false, 0, oopDesc::mark_offset_in_bytes()); | |
359 TypeInstPtr::KLASS = TypeInstPtr::make(TypePtr::BotPTR, current->env()->Object_klass(), | |
360 false, 0, oopDesc::klass_offset_in_bytes()); | |
992 | 361 TypeOopPtr::BOTTOM = TypeOopPtr::make(TypePtr::BotPTR, OffsetBot, TypeOopPtr::InstanceBot); |
0 | 362 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
363 TypeMetadataPtr::BOTTOM = TypeMetadataPtr::make(TypePtr::BotPTR, NULL, OffsetBot); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
364 |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
365 TypeNarrowOop::NULL_PTR = TypeNarrowOop::make( TypePtr::NULL_PTR ); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
366 TypeNarrowOop::BOTTOM = TypeNarrowOop::make( TypeInstPtr::BOTTOM ); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
367 |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
368 TypeNarrowKlass::NULL_PTR = TypeNarrowKlass::make( TypePtr::NULL_PTR ); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
369 |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
370 mreg2type[Op_Node] = Type::BOTTOM; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
371 mreg2type[Op_Set ] = 0; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
372 mreg2type[Op_RegN] = TypeNarrowOop::BOTTOM; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
373 mreg2type[Op_RegI] = TypeInt::INT; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
374 mreg2type[Op_RegP] = TypePtr::BOTTOM; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
375 mreg2type[Op_RegF] = Type::FLOAT; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
376 mreg2type[Op_RegD] = Type::DOUBLE; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
377 mreg2type[Op_RegL] = TypeLong::LONG; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
378 mreg2type[Op_RegFlags] = TypeInt::CC; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
379 |
1761 | 380 TypeAryPtr::RANGE = TypeAryPtr::make( TypePtr::BotPTR, TypeAry::make(Type::BOTTOM,TypeInt::POS), NULL /* current->env()->Object_klass() */, false, arrayOopDesc::length_offset_in_bytes()); |
163 | 381 |
382 TypeAryPtr::NARROWOOPS = TypeAryPtr::make(TypePtr::BotPTR, TypeAry::make(TypeNarrowOop::BOTTOM, TypeInt::POS), NULL /*ciArrayKlass::make(o)*/, false, Type::OffsetBot); | |
383 | |
384 #ifdef _LP64 | |
385 if (UseCompressedOops) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
386 assert(TypeAryPtr::NARROWOOPS->is_ptr_to_narrowoop(), "array of narrow oops must be ptr to narrow oop"); |
163 | 387 TypeAryPtr::OOPS = TypeAryPtr::NARROWOOPS; |
388 } else | |
389 #endif | |
390 { | |
391 // There is no shared klass for Object[]. See note in TypeAryPtr::klass(). | |
392 TypeAryPtr::OOPS = TypeAryPtr::make(TypePtr::BotPTR, TypeAry::make(TypeInstPtr::BOTTOM,TypeInt::POS), NULL /*ciArrayKlass::make(o)*/, false, Type::OffsetBot); | |
393 } | |
0 | 394 TypeAryPtr::BYTES = TypeAryPtr::make(TypePtr::BotPTR, TypeAry::make(TypeInt::BYTE ,TypeInt::POS), ciTypeArrayKlass::make(T_BYTE), true, Type::OffsetBot); |
395 TypeAryPtr::SHORTS = TypeAryPtr::make(TypePtr::BotPTR, TypeAry::make(TypeInt::SHORT ,TypeInt::POS), ciTypeArrayKlass::make(T_SHORT), true, Type::OffsetBot); | |
396 TypeAryPtr::CHARS = TypeAryPtr::make(TypePtr::BotPTR, TypeAry::make(TypeInt::CHAR ,TypeInt::POS), ciTypeArrayKlass::make(T_CHAR), true, Type::OffsetBot); | |
397 TypeAryPtr::INTS = TypeAryPtr::make(TypePtr::BotPTR, TypeAry::make(TypeInt::INT ,TypeInt::POS), ciTypeArrayKlass::make(T_INT), true, Type::OffsetBot); | |
398 TypeAryPtr::LONGS = TypeAryPtr::make(TypePtr::BotPTR, TypeAry::make(TypeLong::LONG ,TypeInt::POS), ciTypeArrayKlass::make(T_LONG), true, Type::OffsetBot); | |
399 TypeAryPtr::FLOATS = TypeAryPtr::make(TypePtr::BotPTR, TypeAry::make(Type::FLOAT ,TypeInt::POS), ciTypeArrayKlass::make(T_FLOAT), true, Type::OffsetBot); | |
400 TypeAryPtr::DOUBLES = TypeAryPtr::make(TypePtr::BotPTR, TypeAry::make(Type::DOUBLE ,TypeInt::POS), ciTypeArrayKlass::make(T_DOUBLE), true, Type::OffsetBot); | |
401 | |
163 | 402 // Nobody should ask _array_body_type[T_NARROWOOP]. Use NULL as assert. |
403 TypeAryPtr::_array_body_type[T_NARROWOOP] = NULL; | |
0 | 404 TypeAryPtr::_array_body_type[T_OBJECT] = TypeAryPtr::OOPS; |
163 | 405 TypeAryPtr::_array_body_type[T_ARRAY] = TypeAryPtr::OOPS; // arrays are stored in oop arrays |
0 | 406 TypeAryPtr::_array_body_type[T_BYTE] = TypeAryPtr::BYTES; |
407 TypeAryPtr::_array_body_type[T_BOOLEAN] = TypeAryPtr::BYTES; // boolean[] is a byte array | |
408 TypeAryPtr::_array_body_type[T_SHORT] = TypeAryPtr::SHORTS; | |
409 TypeAryPtr::_array_body_type[T_CHAR] = TypeAryPtr::CHARS; | |
410 TypeAryPtr::_array_body_type[T_INT] = TypeAryPtr::INTS; | |
411 TypeAryPtr::_array_body_type[T_LONG] = TypeAryPtr::LONGS; | |
412 TypeAryPtr::_array_body_type[T_FLOAT] = TypeAryPtr::FLOATS; | |
413 TypeAryPtr::_array_body_type[T_DOUBLE] = TypeAryPtr::DOUBLES; | |
414 | |
415 TypeKlassPtr::OBJECT = TypeKlassPtr::make( TypePtr::NotNull, current->env()->Object_klass(), 0 ); | |
416 TypeKlassPtr::OBJECT_OR_NULL = TypeKlassPtr::make( TypePtr::BotPTR, current->env()->Object_klass(), 0 ); | |
417 | |
418 const Type **fi2c = TypeTuple::fields(2); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
419 fi2c[TypeFunc::Parms+0] = TypeInstPtr::BOTTOM; // Method* |
0 | 420 fi2c[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // argument pointer |
421 TypeTuple::START_I2C = TypeTuple::make(TypeFunc::Parms+2, fi2c); | |
422 | |
423 const Type **intpair = TypeTuple::fields(2); | |
424 intpair[0] = TypeInt::INT; | |
425 intpair[1] = TypeInt::INT; | |
426 TypeTuple::INT_PAIR = TypeTuple::make(2, intpair); | |
427 | |
428 const Type **longpair = TypeTuple::fields(2); | |
429 longpair[0] = TypeLong::LONG; | |
430 longpair[1] = TypeLong::LONG; | |
431 TypeTuple::LONG_PAIR = TypeTuple::make(2, longpair); | |
432 | |
12323 | 433 const Type **intccpair = TypeTuple::fields(2); |
434 intccpair[0] = TypeInt::INT; | |
435 intccpair[1] = TypeInt::CC; | |
436 TypeTuple::INT_CC_PAIR = TypeTuple::make(2, intccpair); | |
437 | |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
438 _const_basic_type[T_NARROWOOP] = TypeNarrowOop::BOTTOM; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
439 _const_basic_type[T_NARROWKLASS] = Type::BOTTOM; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
440 _const_basic_type[T_BOOLEAN] = TypeInt::BOOL; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
441 _const_basic_type[T_CHAR] = TypeInt::CHAR; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
442 _const_basic_type[T_BYTE] = TypeInt::BYTE; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
443 _const_basic_type[T_SHORT] = TypeInt::SHORT; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
444 _const_basic_type[T_INT] = TypeInt::INT; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
445 _const_basic_type[T_LONG] = TypeLong::LONG; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
446 _const_basic_type[T_FLOAT] = Type::FLOAT; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
447 _const_basic_type[T_DOUBLE] = Type::DOUBLE; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
448 _const_basic_type[T_OBJECT] = TypeInstPtr::BOTTOM; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
449 _const_basic_type[T_ARRAY] = TypeInstPtr::BOTTOM; // there is no separate bottom for arrays |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
450 _const_basic_type[T_VOID] = TypePtr::NULL_PTR; // reflection represents void this way |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
451 _const_basic_type[T_ADDRESS] = TypeRawPtr::BOTTOM; // both interpreter return addresses & random raw ptrs |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
452 _const_basic_type[T_CONFLICT] = Type::BOTTOM; // why not? |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
453 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
454 _zero_type[T_NARROWOOP] = TypeNarrowOop::NULL_PTR; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
455 _zero_type[T_NARROWKLASS] = TypeNarrowKlass::NULL_PTR; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
456 _zero_type[T_BOOLEAN] = TypeInt::ZERO; // false == 0 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
457 _zero_type[T_CHAR] = TypeInt::ZERO; // '\0' == 0 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
458 _zero_type[T_BYTE] = TypeInt::ZERO; // 0x00 == 0 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
459 _zero_type[T_SHORT] = TypeInt::ZERO; // 0x0000 == 0 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
460 _zero_type[T_INT] = TypeInt::ZERO; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
461 _zero_type[T_LONG] = TypeLong::ZERO; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
462 _zero_type[T_FLOAT] = TypeF::ZERO; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
463 _zero_type[T_DOUBLE] = TypeD::ZERO; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
464 _zero_type[T_OBJECT] = TypePtr::NULL_PTR; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
465 _zero_type[T_ARRAY] = TypePtr::NULL_PTR; // null array is null oop |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
466 _zero_type[T_ADDRESS] = TypePtr::NULL_PTR; // raw pointers use the same null |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
467 _zero_type[T_VOID] = Type::TOP; // the only void value is no value at all |
0 | 468 |
469 // get_zero_type() should not happen for T_CONFLICT | |
470 _zero_type[T_CONFLICT]= NULL; | |
471 | |
6179
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
472 // Vector predefined types, it needs initialized _const_basic_type[]. |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
473 if (Matcher::vector_size_supported(T_BYTE,4)) { |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
474 TypeVect::VECTS = TypeVect::make(T_BYTE,4); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
475 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
476 if (Matcher::vector_size_supported(T_FLOAT,2)) { |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
477 TypeVect::VECTD = TypeVect::make(T_FLOAT,2); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
478 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
479 if (Matcher::vector_size_supported(T_FLOAT,4)) { |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
480 TypeVect::VECTX = TypeVect::make(T_FLOAT,4); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
481 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
482 if (Matcher::vector_size_supported(T_FLOAT,8)) { |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
483 TypeVect::VECTY = TypeVect::make(T_FLOAT,8); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
484 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
485 mreg2type[Op_VecS] = TypeVect::VECTS; |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
486 mreg2type[Op_VecD] = TypeVect::VECTD; |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
487 mreg2type[Op_VecX] = TypeVect::VECTX; |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
488 mreg2type[Op_VecY] = TypeVect::VECTY; |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
489 |
0 | 490 // Restore working type arena. |
491 current->set_type_arena(save); | |
492 current->set_type_dict(NULL); | |
493 } | |
494 | |
495 //------------------------------Initialize------------------------------------- | |
496 void Type::Initialize(Compile* current) { | |
497 assert(current->type_arena() != NULL, "must have created type arena"); | |
498 | |
499 if (_shared_type_dict == NULL) { | |
500 Initialize_shared(current); | |
501 } | |
502 | |
503 Arena* type_arena = current->type_arena(); | |
504 | |
505 // Create the hash-cons'ing dictionary with top-level storage allocation | |
506 Dict *tdic = new (type_arena) Dict( (CmpKey)Type::cmp,(Hash)Type::uhash, type_arena, 128 ); | |
507 current->set_type_dict(tdic); | |
508 | |
509 // Transfer the shared types. | |
510 DictI i(_shared_type_dict); | |
511 for( ; i.test(); ++i ) { | |
512 Type* t = (Type*)i._value; | |
513 tdic->Insert(t,t); // New Type, insert into Type table | |
514 } | |
515 } | |
516 | |
517 //------------------------------hashcons--------------------------------------- | |
518 // Do the hash-cons trick. If the Type already exists in the type table, | |
519 // delete the current Type and return the existing Type. Otherwise stick the | |
520 // current Type in the Type table. | |
521 const Type *Type::hashcons(void) { | |
522 debug_only(base()); // Check the assertion in Type::base(). | |
523 // Look up the Type in the Type dictionary | |
524 Dict *tdic = type_dict(); | |
525 Type* old = (Type*)(tdic->Insert(this, this, false)); | |
526 if( old ) { // Pre-existing Type? | |
527 if( old != this ) // Yes, this guy is not the pre-existing? | |
528 delete this; // Yes, Nuke this guy | |
529 assert( old->_dual, "" ); | |
530 return old; // Return pre-existing | |
531 } | |
532 | |
533 // Every type has a dual (to make my lattice symmetric). | |
534 // Since we just discovered a new Type, compute its dual right now. | |
535 assert( !_dual, "" ); // No dual yet | |
536 _dual = xdual(); // Compute the dual | |
537 if( cmp(this,_dual)==0 ) { // Handle self-symmetric | |
538 _dual = this; | |
539 return this; | |
540 } | |
541 assert( !_dual->_dual, "" ); // No reverse dual yet | |
542 assert( !(*tdic)[_dual], "" ); // Dual not in type system either | |
543 // New Type, insert into Type table | |
544 tdic->Insert((void*)_dual,(void*)_dual); | |
545 ((Type*)_dual)->_dual = this; // Finish up being symmetric | |
546 #ifdef ASSERT | |
547 Type *dual_dual = (Type*)_dual->xdual(); | |
548 assert( eq(dual_dual), "xdual(xdual()) should be identity" ); | |
549 delete dual_dual; | |
550 #endif | |
551 return this; // Return new Type | |
552 } | |
553 | |
554 //------------------------------eq--------------------------------------------- | |
555 // Structural equality check for Type representations | |
556 bool Type::eq( const Type * ) const { | |
557 return true; // Nothing else can go wrong | |
558 } | |
559 | |
560 //------------------------------hash------------------------------------------- | |
561 // Type-specific hashing function. | |
562 int Type::hash(void) const { | |
563 return _base; | |
564 } | |
565 | |
566 //------------------------------is_finite-------------------------------------- | |
567 // Has a finite value | |
568 bool Type::is_finite() const { | |
569 return false; | |
570 } | |
571 | |
572 //------------------------------is_nan----------------------------------------- | |
573 // Is not a number (NaN) | |
574 bool Type::is_nan() const { | |
575 return false; | |
576 } | |
577 | |
820
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
578 //----------------------interface_vs_oop--------------------------------------- |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
579 #ifdef ASSERT |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
580 bool Type::interface_vs_oop(const Type *t) const { |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
581 bool result = false; |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
582 |
992 | 583 const TypePtr* this_ptr = this->make_ptr(); // In case it is narrow_oop |
584 const TypePtr* t_ptr = t->make_ptr(); | |
585 if( this_ptr == NULL || t_ptr == NULL ) | |
586 return result; | |
587 | |
588 const TypeInstPtr* this_inst = this_ptr->isa_instptr(); | |
589 const TypeInstPtr* t_inst = t_ptr->isa_instptr(); | |
820
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
590 if( this_inst && this_inst->is_loaded() && t_inst && t_inst->is_loaded() ) { |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
591 bool this_interface = this_inst->klass()->is_interface(); |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
592 bool t_interface = t_inst->klass()->is_interface(); |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
593 result = this_interface ^ t_interface; |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
594 } |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
595 |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
596 return result; |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
597 } |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
598 #endif |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
599 |
0 | 600 //------------------------------meet------------------------------------------- |
601 // Compute the MEET of two types. NOT virtual. It enforces that meet is | |
602 // commutative and the lattice is symmetric. | |
603 const Type *Type::meet( const Type *t ) const { | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
604 if (isa_narrowoop() && t->isa_narrowoop()) { |
221
1e026f8da827
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
183
diff
changeset
|
605 const Type* result = make_ptr()->meet(t->make_ptr()); |
1e026f8da827
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
183
diff
changeset
|
606 return result->make_narrowoop(); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
607 } |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
608 if (isa_narrowklass() && t->isa_narrowklass()) { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
609 const Type* result = make_ptr()->meet(t->make_ptr()); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
610 return result->make_narrowklass(); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
611 } |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
612 |
0 | 613 const Type *mt = xmeet(t); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
614 if (isa_narrowoop() || t->isa_narrowoop()) return mt; |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
615 if (isa_narrowklass() || t->isa_narrowklass()) return mt; |
0 | 616 #ifdef ASSERT |
617 assert( mt == t->xmeet(this), "meet not commutative" ); | |
618 const Type* dual_join = mt->_dual; | |
619 const Type *t2t = dual_join->xmeet(t->_dual); | |
620 const Type *t2this = dual_join->xmeet( _dual); | |
621 | |
622 // Interface meet Oop is Not Symmetric: | |
623 // Interface:AnyNull meet Oop:AnyNull == Interface:AnyNull | |
624 // Interface:NotNull meet Oop:NotNull == java/lang/Object:NotNull | |
820
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
625 |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
626 if( !interface_vs_oop(t) && (t2t != t->_dual || t2this != _dual) ) { |
0 | 627 tty->print_cr("=== Meet Not Symmetric ==="); |
628 tty->print("t = "); t->dump(); tty->cr(); | |
629 tty->print("this= "); dump(); tty->cr(); | |
630 tty->print("mt=(t meet this)= "); mt->dump(); tty->cr(); | |
631 | |
632 tty->print("t_dual= "); t->_dual->dump(); tty->cr(); | |
633 tty->print("this_dual= "); _dual->dump(); tty->cr(); | |
634 tty->print("mt_dual= "); mt->_dual->dump(); tty->cr(); | |
635 | |
636 tty->print("mt_dual meet t_dual= "); t2t ->dump(); tty->cr(); | |
637 tty->print("mt_dual meet this_dual= "); t2this ->dump(); tty->cr(); | |
638 | |
639 fatal("meet not symmetric" ); | |
640 } | |
641 #endif | |
642 return mt; | |
643 } | |
644 | |
645 //------------------------------xmeet------------------------------------------ | |
646 // Compute the MEET of two types. It returns a new Type object. | |
647 const Type *Type::xmeet( const Type *t ) const { | |
648 // Perform a fast test for common case; meeting the same types together. | |
649 if( this == t ) return this; // Meeting same type-rep? | |
650 | |
651 // Meeting TOP with anything? | |
652 if( _base == Top ) return t; | |
653 | |
654 // Meeting BOTTOM with anything? | |
655 if( _base == Bottom ) return BOTTOM; | |
656 | |
657 // Current "this->_base" is one of: Bad, Multi, Control, Top, | |
658 // Abio, Abstore, Floatxxx, Doublexxx, Bottom, lastype. | |
659 switch (t->base()) { // Switch on original type | |
660 | |
661 // Cut in half the number of cases I must handle. Only need cases for when | |
662 // the given enum "t->type" is less than or equal to the local enum "type". | |
663 case FloatCon: | |
664 case DoubleCon: | |
665 case Int: | |
666 case Long: | |
667 return t->xmeet(this); | |
668 | |
669 case OopPtr: | |
670 return t->xmeet(this); | |
671 | |
672 case InstPtr: | |
673 return t->xmeet(this); | |
674 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
675 case MetadataPtr: |
0 | 676 case KlassPtr: |
677 return t->xmeet(this); | |
678 | |
679 case AryPtr: | |
680 return t->xmeet(this); | |
681 | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
682 case NarrowOop: |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
683 return t->xmeet(this); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
684 |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
685 case NarrowKlass: |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
686 return t->xmeet(this); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
687 |
0 | 688 case Bad: // Type check |
689 default: // Bogus type not in lattice | |
690 typerr(t); | |
691 return Type::BOTTOM; | |
692 | |
693 case Bottom: // Ye Olde Default | |
694 return t; | |
695 | |
696 case FloatTop: | |
697 if( _base == FloatTop ) return this; | |
698 case FloatBot: // Float | |
699 if( _base == FloatBot || _base == FloatTop ) return FLOAT; | |
700 if( _base == DoubleTop || _base == DoubleBot ) return Type::BOTTOM; | |
701 typerr(t); | |
702 return Type::BOTTOM; | |
703 | |
704 case DoubleTop: | |
705 if( _base == DoubleTop ) return this; | |
706 case DoubleBot: // Double | |
707 if( _base == DoubleBot || _base == DoubleTop ) return DOUBLE; | |
708 if( _base == FloatTop || _base == FloatBot ) return Type::BOTTOM; | |
709 typerr(t); | |
710 return Type::BOTTOM; | |
711 | |
712 // These next few cases must match exactly or it is a compile-time error. | |
713 case Control: // Control of code | |
714 case Abio: // State of world outside of program | |
715 case Memory: | |
716 if( _base == t->_base ) return this; | |
717 typerr(t); | |
718 return Type::BOTTOM; | |
719 | |
720 case Top: // Top of the lattice | |
721 return this; | |
722 } | |
723 | |
724 // The type is unchanged | |
725 return this; | |
726 } | |
727 | |
728 //-----------------------------filter------------------------------------------ | |
729 const Type *Type::filter( const Type *kills ) const { | |
730 const Type* ft = join(kills); | |
731 if (ft->empty()) | |
732 return Type::TOP; // Canonical empty value | |
733 return ft; | |
734 } | |
735 | |
736 //------------------------------xdual------------------------------------------ | |
737 // Compute dual right now. | |
738 const Type::TYPES Type::dual_type[Type::lastype] = { | |
739 Bad, // Bad | |
740 Control, // Control | |
741 Bottom, // Top | |
742 Bad, // Int - handled in v-call | |
743 Bad, // Long - handled in v-call | |
744 Half, // Half | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
745 Bad, // NarrowOop - handled in v-call |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
746 Bad, // NarrowKlass - handled in v-call |
0 | 747 |
748 Bad, // Tuple - handled in v-call | |
749 Bad, // Array - handled in v-call | |
6179
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
750 Bad, // VectorS - handled in v-call |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
751 Bad, // VectorD - handled in v-call |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
752 Bad, // VectorX - handled in v-call |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
753 Bad, // VectorY - handled in v-call |
0 | 754 |
755 Bad, // AnyPtr - handled in v-call | |
756 Bad, // RawPtr - handled in v-call | |
757 Bad, // OopPtr - handled in v-call | |
758 Bad, // InstPtr - handled in v-call | |
759 Bad, // AryPtr - handled in v-call | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
760 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
761 Bad, // MetadataPtr - handled in v-call |
0 | 762 Bad, // KlassPtr - handled in v-call |
763 | |
764 Bad, // Function - handled in v-call | |
765 Abio, // Abio | |
766 Return_Address,// Return_Address | |
767 Memory, // Memory | |
768 FloatBot, // FloatTop | |
769 FloatCon, // FloatCon | |
770 FloatTop, // FloatBot | |
771 DoubleBot, // DoubleTop | |
772 DoubleCon, // DoubleCon | |
773 DoubleTop, // DoubleBot | |
774 Top // Bottom | |
775 }; | |
776 | |
777 const Type *Type::xdual() const { | |
778 // Note: the base() accessor asserts the sanity of _base. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
779 assert(_type_info[base()].dual_type != Bad, "implement with v-call"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
780 return new Type(_type_info[_base].dual_type); |
0 | 781 } |
782 | |
783 //------------------------------has_memory------------------------------------- | |
784 bool Type::has_memory() const { | |
785 Type::TYPES tx = base(); | |
786 if (tx == Memory) return true; | |
787 if (tx == Tuple) { | |
788 const TypeTuple *t = is_tuple(); | |
789 for (uint i=0; i < t->cnt(); i++) { | |
790 tx = t->field_at(i)->base(); | |
791 if (tx == Memory) return true; | |
792 } | |
793 } | |
794 return false; | |
795 } | |
796 | |
797 #ifndef PRODUCT | |
798 //------------------------------dump2------------------------------------------ | |
799 void Type::dump2( Dict &d, uint depth, outputStream *st ) const { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
800 st->print(_type_info[_base].msg); |
0 | 801 } |
802 | |
803 //------------------------------dump------------------------------------------- | |
804 void Type::dump_on(outputStream *st) const { | |
805 ResourceMark rm; | |
806 Dict d(cmpkey,hashkey); // Stop recursive type dumping | |
807 dump2(d,1, st); | |
163 | 808 if (is_ptr_to_narrowoop()) { |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
809 st->print(" [narrow]"); |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
810 } else if (is_ptr_to_narrowklass()) { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
811 st->print(" [narrowklass]"); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
812 } |
0 | 813 } |
814 #endif | |
815 | |
816 //------------------------------singleton-------------------------------------- | |
817 // TRUE if Type is a singleton type, FALSE otherwise. Singletons are simple | |
818 // constants (Ldi nodes). Singletons are integer, float or double constants. | |
819 bool Type::singleton(void) const { | |
820 return _base == Top || _base == Half; | |
821 } | |
822 | |
823 //------------------------------empty------------------------------------------ | |
824 // TRUE if Type is a type with no values, FALSE otherwise. | |
825 bool Type::empty(void) const { | |
826 switch (_base) { | |
827 case DoubleTop: | |
828 case FloatTop: | |
829 case Top: | |
830 return true; | |
831 | |
832 case Half: | |
833 case Abio: | |
834 case Return_Address: | |
835 case Memory: | |
836 case Bottom: | |
837 case FloatBot: | |
838 case DoubleBot: | |
839 return false; // never a singleton, therefore never empty | |
840 } | |
841 | |
842 ShouldNotReachHere(); | |
843 return false; | |
844 } | |
845 | |
846 //------------------------------dump_stats------------------------------------- | |
847 // Dump collected statistics to stderr | |
848 #ifndef PRODUCT | |
849 void Type::dump_stats() { | |
850 tty->print("Types made: %d\n", type_dict()->Size()); | |
851 } | |
852 #endif | |
853 | |
854 //------------------------------typerr----------------------------------------- | |
855 void Type::typerr( const Type *t ) const { | |
856 #ifndef PRODUCT | |
857 tty->print("\nError mixing types: "); | |
858 dump(); | |
859 tty->print(" and "); | |
860 t->dump(); | |
861 tty->print("\n"); | |
862 #endif | |
863 ShouldNotReachHere(); | |
864 } | |
865 | |
866 | |
867 //============================================================================= | |
868 // Convenience common pre-built types. | |
869 const TypeF *TypeF::ZERO; // Floating point zero | |
870 const TypeF *TypeF::ONE; // Floating point one | |
871 | |
872 //------------------------------make------------------------------------------- | |
873 // Create a float constant | |
874 const TypeF *TypeF::make(float f) { | |
875 return (TypeF*)(new TypeF(f))->hashcons(); | |
876 } | |
877 | |
878 //------------------------------meet------------------------------------------- | |
879 // Compute the MEET of two types. It returns a new Type object. | |
880 const Type *TypeF::xmeet( const Type *t ) const { | |
881 // Perform a fast test for common case; meeting the same types together. | |
882 if( this == t ) return this; // Meeting same type-rep? | |
883 | |
884 // Current "this->_base" is FloatCon | |
885 switch (t->base()) { // Switch on original type | |
886 case AnyPtr: // Mixing with oops happens when javac | |
887 case RawPtr: // reuses local variables | |
888 case OopPtr: | |
889 case InstPtr: | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
890 case AryPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
891 case MetadataPtr: |
0 | 892 case KlassPtr: |
293
c3e045194476
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
247
diff
changeset
|
893 case NarrowOop: |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
894 case NarrowKlass: |
0 | 895 case Int: |
896 case Long: | |
897 case DoubleTop: | |
898 case DoubleCon: | |
899 case DoubleBot: | |
900 case Bottom: // Ye Olde Default | |
901 return Type::BOTTOM; | |
902 | |
903 case FloatBot: | |
904 return t; | |
905 | |
906 default: // All else is a mistake | |
907 typerr(t); | |
908 | |
909 case FloatCon: // Float-constant vs Float-constant? | |
910 if( jint_cast(_f) != jint_cast(t->getf()) ) // unequal constants? | |
911 // must compare bitwise as positive zero, negative zero and NaN have | |
912 // all the same representation in C++ | |
913 return FLOAT; // Return generic float | |
914 // Equal constants | |
915 case Top: | |
916 case FloatTop: | |
917 break; // Return the float constant | |
918 } | |
919 return this; // Return the float constant | |
920 } | |
921 | |
922 //------------------------------xdual------------------------------------------ | |
923 // Dual: symmetric | |
924 const Type *TypeF::xdual() const { | |
925 return this; | |
926 } | |
927 | |
928 //------------------------------eq--------------------------------------------- | |
929 // Structural equality check for Type representations | |
930 bool TypeF::eq( const Type *t ) const { | |
931 if( g_isnan(_f) || | |
932 g_isnan(t->getf()) ) { | |
933 // One or both are NANs. If both are NANs return true, else false. | |
934 return (g_isnan(_f) && g_isnan(t->getf())); | |
935 } | |
936 if (_f == t->getf()) { | |
937 // (NaN is impossible at this point, since it is not equal even to itself) | |
938 if (_f == 0.0) { | |
939 // difference between positive and negative zero | |
940 if (jint_cast(_f) != jint_cast(t->getf())) return false; | |
941 } | |
942 return true; | |
943 } | |
944 return false; | |
945 } | |
946 | |
947 //------------------------------hash------------------------------------------- | |
948 // Type-specific hashing function. | |
949 int TypeF::hash(void) const { | |
950 return *(int*)(&_f); | |
951 } | |
952 | |
953 //------------------------------is_finite-------------------------------------- | |
954 // Has a finite value | |
955 bool TypeF::is_finite() const { | |
956 return g_isfinite(getf()) != 0; | |
957 } | |
958 | |
959 //------------------------------is_nan----------------------------------------- | |
960 // Is not a number (NaN) | |
961 bool TypeF::is_nan() const { | |
962 return g_isnan(getf()) != 0; | |
963 } | |
964 | |
965 //------------------------------dump2------------------------------------------ | |
966 // Dump float constant Type | |
967 #ifndef PRODUCT | |
968 void TypeF::dump2( Dict &d, uint depth, outputStream *st ) const { | |
969 Type::dump2(d,depth, st); | |
970 st->print("%f", _f); | |
971 } | |
972 #endif | |
973 | |
974 //------------------------------singleton-------------------------------------- | |
975 // TRUE if Type is a singleton type, FALSE otherwise. Singletons are simple | |
976 // constants (Ldi nodes). Singletons are integer, float or double constants | |
977 // or a single symbol. | |
978 bool TypeF::singleton(void) const { | |
979 return true; // Always a singleton | |
980 } | |
981 | |
982 bool TypeF::empty(void) const { | |
983 return false; // always exactly a singleton | |
984 } | |
985 | |
986 //============================================================================= | |
987 // Convenience common pre-built types. | |
988 const TypeD *TypeD::ZERO; // Floating point zero | |
989 const TypeD *TypeD::ONE; // Floating point one | |
990 | |
991 //------------------------------make------------------------------------------- | |
992 const TypeD *TypeD::make(double d) { | |
993 return (TypeD*)(new TypeD(d))->hashcons(); | |
994 } | |
995 | |
996 //------------------------------meet------------------------------------------- | |
997 // Compute the MEET of two types. It returns a new Type object. | |
998 const Type *TypeD::xmeet( const Type *t ) const { | |
999 // Perform a fast test for common case; meeting the same types together. | |
1000 if( this == t ) return this; // Meeting same type-rep? | |
1001 | |
1002 // Current "this->_base" is DoubleCon | |
1003 switch (t->base()) { // Switch on original type | |
1004 case AnyPtr: // Mixing with oops happens when javac | |
1005 case RawPtr: // reuses local variables | |
1006 case OopPtr: | |
1007 case InstPtr: | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
1008 case AryPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
1009 case MetadataPtr: |
0 | 1010 case KlassPtr: |
183
d4dbd9f91680
6711083: 64bit JVM crashes with Internal Error (type.cpp:763) - ShouldNotReachHere() with enabled COOPs
never
parents:
163
diff
changeset
|
1011 case NarrowOop: |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
1012 case NarrowKlass: |
0 | 1013 case Int: |
1014 case Long: | |
1015 case FloatTop: | |
1016 case FloatCon: | |
1017 case FloatBot: | |
1018 case Bottom: // Ye Olde Default | |
1019 return Type::BOTTOM; | |
1020 | |
1021 case DoubleBot: | |
1022 return t; | |
1023 | |
1024 default: // All else is a mistake | |
1025 typerr(t); | |
1026 | |
1027 case DoubleCon: // Double-constant vs Double-constant? | |
1028 if( jlong_cast(_d) != jlong_cast(t->getd()) ) // unequal constants? (see comment in TypeF::xmeet) | |
1029 return DOUBLE; // Return generic double | |
1030 case Top: | |
1031 case DoubleTop: | |
1032 break; | |
1033 } | |
1034 return this; // Return the double constant | |
1035 } | |
1036 | |
1037 //------------------------------xdual------------------------------------------ | |
1038 // Dual: symmetric | |
1039 const Type *TypeD::xdual() const { | |
1040 return this; | |
1041 } | |
1042 | |
1043 //------------------------------eq--------------------------------------------- | |
1044 // Structural equality check for Type representations | |
1045 bool TypeD::eq( const Type *t ) const { | |
1046 if( g_isnan(_d) || | |
1047 g_isnan(t->getd()) ) { | |
1048 // One or both are NANs. If both are NANs return true, else false. | |
1049 return (g_isnan(_d) && g_isnan(t->getd())); | |
1050 } | |
1051 if (_d == t->getd()) { | |
1052 // (NaN is impossible at this point, since it is not equal even to itself) | |
1053 if (_d == 0.0) { | |
1054 // difference between positive and negative zero | |
1055 if (jlong_cast(_d) != jlong_cast(t->getd())) return false; | |
1056 } | |
1057 return true; | |
1058 } | |
1059 return false; | |
1060 } | |
1061 | |
1062 //------------------------------hash------------------------------------------- | |
1063 // Type-specific hashing function. | |
1064 int TypeD::hash(void) const { | |
1065 return *(int*)(&_d); | |
1066 } | |
1067 | |
1068 //------------------------------is_finite-------------------------------------- | |
1069 // Has a finite value | |
1070 bool TypeD::is_finite() const { | |
1071 return g_isfinite(getd()) != 0; | |
1072 } | |
1073 | |
1074 //------------------------------is_nan----------------------------------------- | |
1075 // Is not a number (NaN) | |
1076 bool TypeD::is_nan() const { | |
1077 return g_isnan(getd()) != 0; | |
1078 } | |
1079 | |
1080 //------------------------------dump2------------------------------------------ | |
1081 // Dump double constant Type | |
1082 #ifndef PRODUCT | |
1083 void TypeD::dump2( Dict &d, uint depth, outputStream *st ) const { | |
1084 Type::dump2(d,depth,st); | |
1085 st->print("%f", _d); | |
1086 } | |
1087 #endif | |
1088 | |
1089 //------------------------------singleton-------------------------------------- | |
1090 // TRUE if Type is a singleton type, FALSE otherwise. Singletons are simple | |
1091 // constants (Ldi nodes). Singletons are integer, float or double constants | |
1092 // or a single symbol. | |
1093 bool TypeD::singleton(void) const { | |
1094 return true; // Always a singleton | |
1095 } | |
1096 | |
1097 bool TypeD::empty(void) const { | |
1098 return false; // always exactly a singleton | |
1099 } | |
1100 | |
1101 //============================================================================= | |
1102 // Convience common pre-built types. | |
1103 const TypeInt *TypeInt::MINUS_1;// -1 | |
1104 const TypeInt *TypeInt::ZERO; // 0 | |
1105 const TypeInt *TypeInt::ONE; // 1 | |
1106 const TypeInt *TypeInt::BOOL; // 0 or 1, FALSE or TRUE. | |
1107 const TypeInt *TypeInt::CC; // -1,0 or 1, condition codes | |
1108 const TypeInt *TypeInt::CC_LT; // [-1] == MINUS_1 | |
1109 const TypeInt *TypeInt::CC_GT; // [1] == ONE | |
1110 const TypeInt *TypeInt::CC_EQ; // [0] == ZERO | |
1111 const TypeInt *TypeInt::CC_LE; // [-1,0] | |
1112 const TypeInt *TypeInt::CC_GE; // [0,1] == BOOL (!) | |
1113 const TypeInt *TypeInt::BYTE; // Bytes, -128 to 127 | |
624 | 1114 const TypeInt *TypeInt::UBYTE; // Unsigned Bytes, 0 to 255 |
0 | 1115 const TypeInt *TypeInt::CHAR; // Java chars, 0-65535 |
1116 const TypeInt *TypeInt::SHORT; // Java shorts, -32768-32767 | |
1117 const TypeInt *TypeInt::POS; // Positive 32-bit integers or zero | |
1118 const TypeInt *TypeInt::POS1; // Positive 32-bit integers | |
1119 const TypeInt *TypeInt::INT; // 32-bit integers | |
1120 const TypeInt *TypeInt::SYMINT; // symmetric range [-max_jint..max_jint] | |
1121 | |
1122 //------------------------------TypeInt---------------------------------------- | |
1123 TypeInt::TypeInt( jint lo, jint hi, int w ) : Type(Int), _lo(lo), _hi(hi), _widen(w) { | |
1124 } | |
1125 | |
1126 //------------------------------make------------------------------------------- | |
1127 const TypeInt *TypeInt::make( jint lo ) { | |
1128 return (TypeInt*)(new TypeInt(lo,lo,WidenMin))->hashcons(); | |
1129 } | |
1130 | |
1620
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1131 static int normalize_int_widen( jint lo, jint hi, int w ) { |
0 | 1132 // Certain normalizations keep us sane when comparing types. |
1133 // The 'SMALLINT' covers constants and also CC and its relatives. | |
1134 if (lo <= hi) { | |
1620
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1135 if ((juint)(hi - lo) <= SMALLINT) w = Type::WidenMin; |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1136 if ((juint)(hi - lo) >= max_juint) w = Type::WidenMax; // TypeInt::INT |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1137 } else { |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1138 if ((juint)(lo - hi) <= SMALLINT) w = Type::WidenMin; |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1139 if ((juint)(lo - hi) >= max_juint) w = Type::WidenMin; // dual TypeInt::INT |
0 | 1140 } |
1620
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1141 return w; |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1142 } |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1143 |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1144 const TypeInt *TypeInt::make( jint lo, jint hi, int w ) { |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1145 w = normalize_int_widen(lo, hi, w); |
0 | 1146 return (TypeInt*)(new TypeInt(lo,hi,w))->hashcons(); |
1147 } | |
1148 | |
1149 //------------------------------meet------------------------------------------- | |
1150 // Compute the MEET of two types. It returns a new Type representation object | |
1151 // with reference count equal to the number of Types pointing at it. | |
1152 // Caller should wrap a Types around it. | |
1153 const Type *TypeInt::xmeet( const Type *t ) const { | |
1154 // Perform a fast test for common case; meeting the same types together. | |
1155 if( this == t ) return this; // Meeting same type? | |
1156 | |
1157 // Currently "this->_base" is a TypeInt | |
1158 switch (t->base()) { // Switch on original type | |
1159 case AnyPtr: // Mixing with oops happens when javac | |
1160 case RawPtr: // reuses local variables | |
1161 case OopPtr: | |
1162 case InstPtr: | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
1163 case AryPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
1164 case MetadataPtr: |
0 | 1165 case KlassPtr: |
183
d4dbd9f91680
6711083: 64bit JVM crashes with Internal Error (type.cpp:763) - ShouldNotReachHere() with enabled COOPs
never
parents:
163
diff
changeset
|
1166 case NarrowOop: |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
1167 case NarrowKlass: |
0 | 1168 case Long: |
1169 case FloatTop: | |
1170 case FloatCon: | |
1171 case FloatBot: | |
1172 case DoubleTop: | |
1173 case DoubleCon: | |
1174 case DoubleBot: | |
1175 case Bottom: // Ye Olde Default | |
1176 return Type::BOTTOM; | |
1177 default: // All else is a mistake | |
1178 typerr(t); | |
1179 case Top: // No change | |
1180 return this; | |
1181 case Int: // Int vs Int? | |
1182 break; | |
1183 } | |
1184 | |
1185 // Expand covered set | |
1186 const TypeInt *r = t->is_int(); | |
1620
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1187 return make( MIN2(_lo,r->_lo), MAX2(_hi,r->_hi), MAX2(_widen,r->_widen) ); |
0 | 1188 } |
1189 | |
1190 //------------------------------xdual------------------------------------------ | |
1191 // Dual: reverse hi & lo; flip widen | |
1192 const Type *TypeInt::xdual() const { | |
1620
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1193 int w = normalize_int_widen(_hi,_lo, WidenMax-_widen); |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1194 return new TypeInt(_hi,_lo,w); |
0 | 1195 } |
1196 | |
1197 //------------------------------widen------------------------------------------ | |
1198 // Only happens for optimistic top-down optimizations. | |
1009
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1199 const Type *TypeInt::widen( const Type *old, const Type* limit ) const { |
0 | 1200 // Coming from TOP or such; no widening |
1201 if( old->base() != Int ) return this; | |
1202 const TypeInt *ot = old->is_int(); | |
1203 | |
1204 // If new guy is equal to old guy, no widening | |
1205 if( _lo == ot->_lo && _hi == ot->_hi ) | |
1206 return old; | |
1207 | |
1208 // If new guy contains old, then we widened | |
1209 if( _lo <= ot->_lo && _hi >= ot->_hi ) { | |
1210 // New contains old | |
1211 // If new guy is already wider than old, no widening | |
1212 if( _widen > ot->_widen ) return this; | |
1213 // If old guy was a constant, do not bother | |
1214 if (ot->_lo == ot->_hi) return this; | |
1215 // Now widen new guy. | |
1216 // Check for widening too far | |
1217 if (_widen == WidenMax) { | |
1009
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1218 int max = max_jint; |
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1219 int min = min_jint; |
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1220 if (limit->isa_int()) { |
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1221 max = limit->is_int()->_hi; |
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1222 min = limit->is_int()->_lo; |
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1223 } |
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1224 if (min < _lo && _hi < max) { |
0 | 1225 // If neither endpoint is extremal yet, push out the endpoint |
1226 // which is closer to its respective limit. | |
1227 if (_lo >= 0 || // easy common case | |
1009
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1228 (juint)(_lo - min) >= (juint)(max - _hi)) { |
0 | 1229 // Try to widen to an unsigned range type of 31 bits: |
1009
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1230 return make(_lo, max, WidenMax); |
0 | 1231 } else { |
1009
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1232 return make(min, _hi, WidenMax); |
0 | 1233 } |
1234 } | |
1235 return TypeInt::INT; | |
1236 } | |
1237 // Returned widened new guy | |
1238 return make(_lo,_hi,_widen+1); | |
1239 } | |
1240 | |
1241 // If old guy contains new, then we probably widened too far & dropped to | |
1242 // bottom. Return the wider fellow. | |
1243 if ( ot->_lo <= _lo && ot->_hi >= _hi ) | |
1244 return old; | |
1245 | |
1246 //fatal("Integer value range is not subset"); | |
1247 //return this; | |
1248 return TypeInt::INT; | |
1249 } | |
1250 | |
1251 //------------------------------narrow--------------------------------------- | |
1252 // Only happens for pessimistic optimizations. | |
1253 const Type *TypeInt::narrow( const Type *old ) const { | |
1254 if (_lo >= _hi) return this; // already narrow enough | |
1255 if (old == NULL) return this; | |
1256 const TypeInt* ot = old->isa_int(); | |
1257 if (ot == NULL) return this; | |
1258 jint olo = ot->_lo; | |
1259 jint ohi = ot->_hi; | |
1260 | |
1261 // If new guy is equal to old guy, no narrowing | |
1262 if (_lo == olo && _hi == ohi) return old; | |
1263 | |
1264 // If old guy was maximum range, allow the narrowing | |
1265 if (olo == min_jint && ohi == max_jint) return this; | |
1266 | |
1267 if (_lo < olo || _hi > ohi) | |
1268 return this; // doesn't narrow; pretty wierd | |
1269 | |
1270 // The new type narrows the old type, so look for a "death march". | |
1271 // See comments on PhaseTransform::saturate. | |
1272 juint nrange = _hi - _lo; | |
1273 juint orange = ohi - olo; | |
1274 if (nrange < max_juint - 1 && nrange > (orange >> 1) + (SMALLINT*2)) { | |
1275 // Use the new type only if the range shrinks a lot. | |
1276 // We do not want the optimizer computing 2^31 point by point. | |
1277 return old; | |
1278 } | |
1279 | |
1280 return this; | |
1281 } | |
1282 | |
1283 //-----------------------------filter------------------------------------------ | |
1284 const Type *TypeInt::filter( const Type *kills ) const { | |
1285 const TypeInt* ft = join(kills)->isa_int(); | |
1620
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1286 if (ft == NULL || ft->empty()) |
0 | 1287 return Type::TOP; // Canonical empty value |
1288 if (ft->_widen < this->_widen) { | |
1289 // Do not allow the value of kill->_widen to affect the outcome. | |
1290 // The widen bits must be allowed to run freely through the graph. | |
1291 ft = TypeInt::make(ft->_lo, ft->_hi, this->_widen); | |
1292 } | |
1293 return ft; | |
1294 } | |
1295 | |
1296 //------------------------------eq--------------------------------------------- | |
1297 // Structural equality check for Type representations | |
1298 bool TypeInt::eq( const Type *t ) const { | |
1299 const TypeInt *r = t->is_int(); // Handy access | |
1300 return r->_lo == _lo && r->_hi == _hi && r->_widen == _widen; | |
1301 } | |
1302 | |
1303 //------------------------------hash------------------------------------------- | |
1304 // Type-specific hashing function. | |
1305 int TypeInt::hash(void) const { | |
1306 return _lo+_hi+_widen+(int)Type::Int; | |
1307 } | |
1308 | |
1309 //------------------------------is_finite-------------------------------------- | |
1310 // Has a finite value | |
1311 bool TypeInt::is_finite() const { | |
1312 return true; | |
1313 } | |
1314 | |
1315 //------------------------------dump2------------------------------------------ | |
1316 // Dump TypeInt | |
1317 #ifndef PRODUCT | |
1318 static const char* intname(char* buf, jint n) { | |
1319 if (n == min_jint) | |
1320 return "min"; | |
1321 else if (n < min_jint + 10000) | |
1322 sprintf(buf, "min+" INT32_FORMAT, n - min_jint); | |
1323 else if (n == max_jint) | |
1324 return "max"; | |
1325 else if (n > max_jint - 10000) | |
1326 sprintf(buf, "max-" INT32_FORMAT, max_jint - n); | |
1327 else | |
1328 sprintf(buf, INT32_FORMAT, n); | |
1329 return buf; | |
1330 } | |
1331 | |
1332 void TypeInt::dump2( Dict &d, uint depth, outputStream *st ) const { | |
1333 char buf[40], buf2[40]; | |
1334 if (_lo == min_jint && _hi == max_jint) | |
1335 st->print("int"); | |
1336 else if (is_con()) | |
1337 st->print("int:%s", intname(buf, get_con())); | |
1338 else if (_lo == BOOL->_lo && _hi == BOOL->_hi) | |
1339 st->print("bool"); | |
1340 else if (_lo == BYTE->_lo && _hi == BYTE->_hi) | |
1341 st->print("byte"); | |
1342 else if (_lo == CHAR->_lo && _hi == CHAR->_hi) | |
1343 st->print("char"); | |
1344 else if (_lo == SHORT->_lo && _hi == SHORT->_hi) | |
1345 st->print("short"); | |
1346 else if (_hi == max_jint) | |
1347 st->print("int:>=%s", intname(buf, _lo)); | |
1348 else if (_lo == min_jint) | |
1349 st->print("int:<=%s", intname(buf, _hi)); | |
1350 else | |
1351 st->print("int:%s..%s", intname(buf, _lo), intname(buf2, _hi)); | |
1352 | |
1353 if (_widen != 0 && this != TypeInt::INT) | |
1354 st->print(":%.*s", _widen, "wwww"); | |
1355 } | |
1356 #endif | |
1357 | |
1358 //------------------------------singleton-------------------------------------- | |
1359 // TRUE if Type is a singleton type, FALSE otherwise. Singletons are simple | |
1360 // constants. | |
1361 bool TypeInt::singleton(void) const { | |
1362 return _lo >= _hi; | |
1363 } | |
1364 | |
1365 bool TypeInt::empty(void) const { | |
1366 return _lo > _hi; | |
1367 } | |
1368 | |
1369 //============================================================================= | |
1370 // Convenience common pre-built types. | |
1371 const TypeLong *TypeLong::MINUS_1;// -1 | |
1372 const TypeLong *TypeLong::ZERO; // 0 | |
1373 const TypeLong *TypeLong::ONE; // 1 | |
1374 const TypeLong *TypeLong::POS; // >=0 | |
1375 const TypeLong *TypeLong::LONG; // 64-bit integers | |
1376 const TypeLong *TypeLong::INT; // 32-bit subrange | |
1377 const TypeLong *TypeLong::UINT; // 32-bit unsigned subrange | |
1378 | |
1379 //------------------------------TypeLong--------------------------------------- | |
1380 TypeLong::TypeLong( jlong lo, jlong hi, int w ) : Type(Long), _lo(lo), _hi(hi), _widen(w) { | |
1381 } | |
1382 | |
1383 //------------------------------make------------------------------------------- | |
1384 const TypeLong *TypeLong::make( jlong lo ) { | |
1385 return (TypeLong*)(new TypeLong(lo,lo,WidenMin))->hashcons(); | |
1386 } | |
1387 | |
1620
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1388 static int normalize_long_widen( jlong lo, jlong hi, int w ) { |
0 | 1389 // Certain normalizations keep us sane when comparing types. |
1620
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1390 // The 'SMALLINT' covers constants. |
0 | 1391 if (lo <= hi) { |
1620
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1392 if ((julong)(hi - lo) <= SMALLINT) w = Type::WidenMin; |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1393 if ((julong)(hi - lo) >= max_julong) w = Type::WidenMax; // TypeLong::LONG |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1394 } else { |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1395 if ((julong)(lo - hi) <= SMALLINT) w = Type::WidenMin; |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1396 if ((julong)(lo - hi) >= max_julong) w = Type::WidenMin; // dual TypeLong::LONG |
0 | 1397 } |
1620
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1398 return w; |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1399 } |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1400 |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1401 const TypeLong *TypeLong::make( jlong lo, jlong hi, int w ) { |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1402 w = normalize_long_widen(lo, hi, w); |
0 | 1403 return (TypeLong*)(new TypeLong(lo,hi,w))->hashcons(); |
1404 } | |
1405 | |
1406 | |
1407 //------------------------------meet------------------------------------------- | |
1408 // Compute the MEET of two types. It returns a new Type representation object | |
1409 // with reference count equal to the number of Types pointing at it. | |
1410 // Caller should wrap a Types around it. | |
1411 const Type *TypeLong::xmeet( const Type *t ) const { | |
1412 // Perform a fast test for common case; meeting the same types together. | |
1413 if( this == t ) return this; // Meeting same type? | |
1414 | |
1415 // Currently "this->_base" is a TypeLong | |
1416 switch (t->base()) { // Switch on original type | |
1417 case AnyPtr: // Mixing with oops happens when javac | |
1418 case RawPtr: // reuses local variables | |
1419 case OopPtr: | |
1420 case InstPtr: | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
1421 case AryPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
1422 case MetadataPtr: |
0 | 1423 case KlassPtr: |
183
d4dbd9f91680
6711083: 64bit JVM crashes with Internal Error (type.cpp:763) - ShouldNotReachHere() with enabled COOPs
never
parents:
163
diff
changeset
|
1424 case NarrowOop: |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
1425 case NarrowKlass: |
0 | 1426 case Int: |
1427 case FloatTop: | |
1428 case FloatCon: | |
1429 case FloatBot: | |
1430 case DoubleTop: | |
1431 case DoubleCon: | |
1432 case DoubleBot: | |
1433 case Bottom: // Ye Olde Default | |
1434 return Type::BOTTOM; | |
1435 default: // All else is a mistake | |
1436 typerr(t); | |
1437 case Top: // No change | |
1438 return this; | |
1439 case Long: // Long vs Long? | |
1440 break; | |
1441 } | |
1442 | |
1443 // Expand covered set | |
1444 const TypeLong *r = t->is_long(); // Turn into a TypeLong | |
1620
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1445 return make( MIN2(_lo,r->_lo), MAX2(_hi,r->_hi), MAX2(_widen,r->_widen) ); |
0 | 1446 } |
1447 | |
1448 //------------------------------xdual------------------------------------------ | |
1449 // Dual: reverse hi & lo; flip widen | |
1450 const Type *TypeLong::xdual() const { | |
1620
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1451 int w = normalize_long_widen(_hi,_lo, WidenMax-_widen); |
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1452 return new TypeLong(_hi,_lo,w); |
0 | 1453 } |
1454 | |
1455 //------------------------------widen------------------------------------------ | |
1456 // Only happens for optimistic top-down optimizations. | |
1009
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1457 const Type *TypeLong::widen( const Type *old, const Type* limit ) const { |
0 | 1458 // Coming from TOP or such; no widening |
1459 if( old->base() != Long ) return this; | |
1460 const TypeLong *ot = old->is_long(); | |
1461 | |
1462 // If new guy is equal to old guy, no widening | |
1463 if( _lo == ot->_lo && _hi == ot->_hi ) | |
1464 return old; | |
1465 | |
1466 // If new guy contains old, then we widened | |
1467 if( _lo <= ot->_lo && _hi >= ot->_hi ) { | |
1468 // New contains old | |
1469 // If new guy is already wider than old, no widening | |
1470 if( _widen > ot->_widen ) return this; | |
1471 // If old guy was a constant, do not bother | |
1472 if (ot->_lo == ot->_hi) return this; | |
1473 // Now widen new guy. | |
1474 // Check for widening too far | |
1475 if (_widen == WidenMax) { | |
1009
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1476 jlong max = max_jlong; |
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1477 jlong min = min_jlong; |
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1478 if (limit->isa_long()) { |
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1479 max = limit->is_long()->_hi; |
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1480 min = limit->is_long()->_lo; |
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1481 } |
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1482 if (min < _lo && _hi < max) { |
0 | 1483 // If neither endpoint is extremal yet, push out the endpoint |
1484 // which is closer to its respective limit. | |
1485 if (_lo >= 0 || // easy common case | |
1009
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1486 (julong)(_lo - min) >= (julong)(max - _hi)) { |
0 | 1487 // Try to widen to an unsigned range type of 32/63 bits: |
1009
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1488 if (max >= max_juint && _hi < max_juint) |
0 | 1489 return make(_lo, max_juint, WidenMax); |
1490 else | |
1009
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1491 return make(_lo, max, WidenMax); |
0 | 1492 } else { |
1009
03b336640699
6885584: A particular class structure causes large allocation spike for jit
never
parents:
992
diff
changeset
|
1493 return make(min, _hi, WidenMax); |
0 | 1494 } |
1495 } | |
1496 return TypeLong::LONG; | |
1497 } | |
1498 // Returned widened new guy | |
1499 return make(_lo,_hi,_widen+1); | |
1500 } | |
1501 | |
1502 // If old guy contains new, then we probably widened too far & dropped to | |
1503 // bottom. Return the wider fellow. | |
1504 if ( ot->_lo <= _lo && ot->_hi >= _hi ) | |
1505 return old; | |
1506 | |
1507 // fatal("Long value range is not subset"); | |
1508 // return this; | |
1509 return TypeLong::LONG; | |
1510 } | |
1511 | |
1512 //------------------------------narrow---------------------------------------- | |
1513 // Only happens for pessimistic optimizations. | |
1514 const Type *TypeLong::narrow( const Type *old ) const { | |
1515 if (_lo >= _hi) return this; // already narrow enough | |
1516 if (old == NULL) return this; | |
1517 const TypeLong* ot = old->isa_long(); | |
1518 if (ot == NULL) return this; | |
1519 jlong olo = ot->_lo; | |
1520 jlong ohi = ot->_hi; | |
1521 | |
1522 // If new guy is equal to old guy, no narrowing | |
1523 if (_lo == olo && _hi == ohi) return old; | |
1524 | |
1525 // If old guy was maximum range, allow the narrowing | |
1526 if (olo == min_jlong && ohi == max_jlong) return this; | |
1527 | |
1528 if (_lo < olo || _hi > ohi) | |
1529 return this; // doesn't narrow; pretty wierd | |
1530 | |
1531 // The new type narrows the old type, so look for a "death march". | |
1532 // See comments on PhaseTransform::saturate. | |
1533 julong nrange = _hi - _lo; | |
1534 julong orange = ohi - olo; | |
1535 if (nrange < max_julong - 1 && nrange > (orange >> 1) + (SMALLINT*2)) { | |
1536 // Use the new type only if the range shrinks a lot. | |
1537 // We do not want the optimizer computing 2^31 point by point. | |
1538 return old; | |
1539 } | |
1540 | |
1541 return this; | |
1542 } | |
1543 | |
1544 //-----------------------------filter------------------------------------------ | |
1545 const Type *TypeLong::filter( const Type *kills ) const { | |
1546 const TypeLong* ft = join(kills)->isa_long(); | |
1620
d678e3277048
6964479: widen normalization of small int and long values should be symmetric
kvn
parents:
1552
diff
changeset
|
1547 if (ft == NULL || ft->empty()) |
0 | 1548 return Type::TOP; // Canonical empty value |
1549 if (ft->_widen < this->_widen) { | |
1550 // Do not allow the value of kill->_widen to affect the outcome. | |
1551 // The widen bits must be allowed to run freely through the graph. | |
1552 ft = TypeLong::make(ft->_lo, ft->_hi, this->_widen); | |
1553 } | |
1554 return ft; | |
1555 } | |
1556 | |
1557 //------------------------------eq--------------------------------------------- | |
1558 // Structural equality check for Type representations | |
1559 bool TypeLong::eq( const Type *t ) const { | |
1560 const TypeLong *r = t->is_long(); // Handy access | |
1561 return r->_lo == _lo && r->_hi == _hi && r->_widen == _widen; | |
1562 } | |
1563 | |
1564 //------------------------------hash------------------------------------------- | |
1565 // Type-specific hashing function. | |
1566 int TypeLong::hash(void) const { | |
1567 return (int)(_lo+_hi+_widen+(int)Type::Long); | |
1568 } | |
1569 | |
1570 //------------------------------is_finite-------------------------------------- | |
1571 // Has a finite value | |
1572 bool TypeLong::is_finite() const { | |
1573 return true; | |
1574 } | |
1575 | |
1576 //------------------------------dump2------------------------------------------ | |
1577 // Dump TypeLong | |
1578 #ifndef PRODUCT | |
1579 static const char* longnamenear(jlong x, const char* xname, char* buf, jlong n) { | |
1580 if (n > x) { | |
1581 if (n >= x + 10000) return NULL; | |
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
6890
diff
changeset
|
1582 sprintf(buf, "%s+" JLONG_FORMAT, xname, n - x); |
0 | 1583 } else if (n < x) { |
1584 if (n <= x - 10000) return NULL; | |
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
6890
diff
changeset
|
1585 sprintf(buf, "%s-" JLONG_FORMAT, xname, x - n); |
0 | 1586 } else { |
1587 return xname; | |
1588 } | |
1589 return buf; | |
1590 } | |
1591 | |
1592 static const char* longname(char* buf, jlong n) { | |
1593 const char* str; | |
1594 if (n == min_jlong) | |
1595 return "min"; | |
1596 else if (n < min_jlong + 10000) | |
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
6890
diff
changeset
|
1597 sprintf(buf, "min+" JLONG_FORMAT, n - min_jlong); |
0 | 1598 else if (n == max_jlong) |
1599 return "max"; | |
1600 else if (n > max_jlong - 10000) | |
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
6890
diff
changeset
|
1601 sprintf(buf, "max-" JLONG_FORMAT, max_jlong - n); |
0 | 1602 else if ((str = longnamenear(max_juint, "maxuint", buf, n)) != NULL) |
1603 return str; | |
1604 else if ((str = longnamenear(max_jint, "maxint", buf, n)) != NULL) | |
1605 return str; | |
1606 else if ((str = longnamenear(min_jint, "minint", buf, n)) != NULL) | |
1607 return str; | |
1608 else | |
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
6890
diff
changeset
|
1609 sprintf(buf, JLONG_FORMAT, n); |
0 | 1610 return buf; |
1611 } | |
1612 | |
1613 void TypeLong::dump2( Dict &d, uint depth, outputStream *st ) const { | |
1614 char buf[80], buf2[80]; | |
1615 if (_lo == min_jlong && _hi == max_jlong) | |
1616 st->print("long"); | |
1617 else if (is_con()) | |
1618 st->print("long:%s", longname(buf, get_con())); | |
1619 else if (_hi == max_jlong) | |
1620 st->print("long:>=%s", longname(buf, _lo)); | |
1621 else if (_lo == min_jlong) | |
1622 st->print("long:<=%s", longname(buf, _hi)); | |
1623 else | |
1624 st->print("long:%s..%s", longname(buf, _lo), longname(buf2, _hi)); | |
1625 | |
1626 if (_widen != 0 && this != TypeLong::LONG) | |
1627 st->print(":%.*s", _widen, "wwww"); | |
1628 } | |
1629 #endif | |
1630 | |
1631 //------------------------------singleton-------------------------------------- | |
1632 // TRUE if Type is a singleton type, FALSE otherwise. Singletons are simple | |
1633 // constants | |
1634 bool TypeLong::singleton(void) const { | |
1635 return _lo >= _hi; | |
1636 } | |
1637 | |
1638 bool TypeLong::empty(void) const { | |
1639 return _lo > _hi; | |
1640 } | |
1641 | |
1642 //============================================================================= | |
1643 // Convenience common pre-built types. | |
1644 const TypeTuple *TypeTuple::IFBOTH; // Return both arms of IF as reachable | |
1645 const TypeTuple *TypeTuple::IFFALSE; | |
1646 const TypeTuple *TypeTuple::IFTRUE; | |
1647 const TypeTuple *TypeTuple::IFNEITHER; | |
1648 const TypeTuple *TypeTuple::LOOPBODY; | |
1649 const TypeTuple *TypeTuple::MEMBAR; | |
1650 const TypeTuple *TypeTuple::STORECONDITIONAL; | |
1651 const TypeTuple *TypeTuple::START_I2C; | |
1652 const TypeTuple *TypeTuple::INT_PAIR; | |
1653 const TypeTuple *TypeTuple::LONG_PAIR; | |
12323 | 1654 const TypeTuple *TypeTuple::INT_CC_PAIR; |
0 | 1655 |
1656 | |
1657 //------------------------------make------------------------------------------- | |
1658 // Make a TypeTuple from the range of a method signature | |
1659 const TypeTuple *TypeTuple::make_range(ciSignature* sig) { | |
1660 ciType* return_type = sig->return_type(); | |
1661 uint total_fields = TypeFunc::Parms + return_type->size(); | |
1662 const Type **field_array = fields(total_fields); | |
1663 switch (return_type->basic_type()) { | |
1664 case T_LONG: | |
1665 field_array[TypeFunc::Parms] = TypeLong::LONG; | |
1666 field_array[TypeFunc::Parms+1] = Type::HALF; | |
1667 break; | |
1668 case T_DOUBLE: | |
1669 field_array[TypeFunc::Parms] = Type::DOUBLE; | |
1670 field_array[TypeFunc::Parms+1] = Type::HALF; | |
1671 break; | |
1672 case T_OBJECT: | |
1673 case T_ARRAY: | |
1674 case T_BOOLEAN: | |
1675 case T_CHAR: | |
1676 case T_FLOAT: | |
1677 case T_BYTE: | |
1678 case T_SHORT: | |
1679 case T_INT: | |
1680 field_array[TypeFunc::Parms] = get_const_type(return_type); | |
1681 break; | |
1682 case T_VOID: | |
1683 break; | |
1684 default: | |
1685 ShouldNotReachHere(); | |
1686 } | |
1687 return (TypeTuple*)(new TypeTuple(total_fields,field_array))->hashcons(); | |
1688 } | |
1689 | |
1690 // Make a TypeTuple from the domain of a method signature | |
1691 const TypeTuple *TypeTuple::make_domain(ciInstanceKlass* recv, ciSignature* sig) { | |
1692 uint total_fields = TypeFunc::Parms + sig->size(); | |
1693 | |
1694 uint pos = TypeFunc::Parms; | |
1695 const Type **field_array; | |
1696 if (recv != NULL) { | |
1697 total_fields++; | |
1698 field_array = fields(total_fields); | |
1699 // Use get_const_type here because it respects UseUniqueSubclasses: | |
1700 field_array[pos++] = get_const_type(recv)->join(TypePtr::NOTNULL); | |
1701 } else { | |
1702 field_array = fields(total_fields); | |
1703 } | |
1704 | |
1705 int i = 0; | |
1706 while (pos < total_fields) { | |
1707 ciType* type = sig->type_at(i); | |
1708 | |
1709 switch (type->basic_type()) { | |
1710 case T_LONG: | |
1711 field_array[pos++] = TypeLong::LONG; | |
1712 field_array[pos++] = Type::HALF; | |
1713 break; | |
1714 case T_DOUBLE: | |
1715 field_array[pos++] = Type::DOUBLE; | |
1716 field_array[pos++] = Type::HALF; | |
1717 break; | |
1718 case T_OBJECT: | |
1719 case T_ARRAY: | |
1720 case T_BOOLEAN: | |
1721 case T_CHAR: | |
1722 case T_FLOAT: | |
1723 case T_BYTE: | |
1724 case T_SHORT: | |
1725 case T_INT: | |
1726 field_array[pos++] = get_const_type(type); | |
1727 break; | |
1728 default: | |
1729 ShouldNotReachHere(); | |
1730 } | |
1731 i++; | |
1732 } | |
1733 return (TypeTuple*)(new TypeTuple(total_fields,field_array))->hashcons(); | |
1734 } | |
1735 | |
1736 const TypeTuple *TypeTuple::make( uint cnt, const Type **fields ) { | |
1737 return (TypeTuple*)(new TypeTuple(cnt,fields))->hashcons(); | |
1738 } | |
1739 | |
1740 //------------------------------fields----------------------------------------- | |
1741 // Subroutine call type with space allocated for argument types | |
1742 const Type **TypeTuple::fields( uint arg_cnt ) { | |
1743 const Type **flds = (const Type **)(Compile::current()->type_arena()->Amalloc_4((TypeFunc::Parms+arg_cnt)*sizeof(Type*) )); | |
1744 flds[TypeFunc::Control ] = Type::CONTROL; | |
1745 flds[TypeFunc::I_O ] = Type::ABIO; | |
1746 flds[TypeFunc::Memory ] = Type::MEMORY; | |
1747 flds[TypeFunc::FramePtr ] = TypeRawPtr::BOTTOM; | |
1748 flds[TypeFunc::ReturnAdr] = Type::RETURN_ADDRESS; | |
1749 | |
1750 return flds; | |
1751 } | |
1752 | |
1753 //------------------------------meet------------------------------------------- | |
1754 // Compute the MEET of two types. It returns a new Type object. | |
1755 const Type *TypeTuple::xmeet( const Type *t ) const { | |
1756 // Perform a fast test for common case; meeting the same types together. | |
1757 if( this == t ) return this; // Meeting same type-rep? | |
1758 | |
1759 // Current "this->_base" is Tuple | |
1760 switch (t->base()) { // switch on original type | |
1761 | |
1762 case Bottom: // Ye Olde Default | |
1763 return t; | |
1764 | |
1765 default: // All else is a mistake | |
1766 typerr(t); | |
1767 | |
1768 case Tuple: { // Meeting 2 signatures? | |
1769 const TypeTuple *x = t->is_tuple(); | |
1770 assert( _cnt == x->_cnt, "" ); | |
1771 const Type **fields = (const Type **)(Compile::current()->type_arena()->Amalloc_4( _cnt*sizeof(Type*) )); | |
1772 for( uint i=0; i<_cnt; i++ ) | |
1773 fields[i] = field_at(i)->xmeet( x->field_at(i) ); | |
1774 return TypeTuple::make(_cnt,fields); | |
1775 } | |
1776 case Top: | |
1777 break; | |
1778 } | |
1779 return this; // Return the double constant | |
1780 } | |
1781 | |
1782 //------------------------------xdual------------------------------------------ | |
1783 // Dual: compute field-by-field dual | |
1784 const Type *TypeTuple::xdual() const { | |
1785 const Type **fields = (const Type **)(Compile::current()->type_arena()->Amalloc_4( _cnt*sizeof(Type*) )); | |
1786 for( uint i=0; i<_cnt; i++ ) | |
1787 fields[i] = _fields[i]->dual(); | |
1788 return new TypeTuple(_cnt,fields); | |
1789 } | |
1790 | |
1791 //------------------------------eq--------------------------------------------- | |
1792 // Structural equality check for Type representations | |
1793 bool TypeTuple::eq( const Type *t ) const { | |
1794 const TypeTuple *s = (const TypeTuple *)t; | |
1795 if (_cnt != s->_cnt) return false; // Unequal field counts | |
1796 for (uint i = 0; i < _cnt; i++) | |
1797 if (field_at(i) != s->field_at(i)) // POINTER COMPARE! NO RECURSION! | |
1798 return false; // Missed | |
1799 return true; | |
1800 } | |
1801 | |
1802 //------------------------------hash------------------------------------------- | |
1803 // Type-specific hashing function. | |
1804 int TypeTuple::hash(void) const { | |
1805 intptr_t sum = _cnt; | |
1806 for( uint i=0; i<_cnt; i++ ) | |
1807 sum += (intptr_t)_fields[i]; // Hash on pointers directly | |
1808 return sum; | |
1809 } | |
1810 | |
1811 //------------------------------dump2------------------------------------------ | |
1812 // Dump signature Type | |
1813 #ifndef PRODUCT | |
1814 void TypeTuple::dump2( Dict &d, uint depth, outputStream *st ) const { | |
1815 st->print("{"); | |
1816 if( !depth || d[this] ) { // Check for recursive print | |
1817 st->print("...}"); | |
1818 return; | |
1819 } | |
1820 d.Insert((void*)this, (void*)this); // Stop recursion | |
1821 if( _cnt ) { | |
1822 uint i; | |
1823 for( i=0; i<_cnt-1; i++ ) { | |
1824 st->print("%d:", i); | |
1825 _fields[i]->dump2(d, depth-1, st); | |
1826 st->print(", "); | |
1827 } | |
1828 st->print("%d:", i); | |
1829 _fields[i]->dump2(d, depth-1, st); | |
1830 } | |
1831 st->print("}"); | |
1832 } | |
1833 #endif | |
1834 | |
1835 //------------------------------singleton-------------------------------------- | |
1836 // TRUE if Type is a singleton type, FALSE otherwise. Singletons are simple | |
1837 // constants (Ldi nodes). Singletons are integer, float or double constants | |
1838 // or a single symbol. | |
1839 bool TypeTuple::singleton(void) const { | |
1840 return false; // Never a singleton | |
1841 } | |
1842 | |
1843 bool TypeTuple::empty(void) const { | |
1844 for( uint i=0; i<_cnt; i++ ) { | |
1845 if (_fields[i]->empty()) return true; | |
1846 } | |
1847 return false; | |
1848 } | |
1849 | |
1850 //============================================================================= | |
1851 // Convenience common pre-built types. | |
1852 | |
1853 inline const TypeInt* normalize_array_size(const TypeInt* size) { | |
1854 // Certain normalizations keep us sane when comparing types. | |
1855 // We do not want arrayOop variables to differ only by the wideness | |
1856 // of their index types. Pick minimum wideness, since that is the | |
1857 // forced wideness of small ranges anyway. | |
1858 if (size->_widen != Type::WidenMin) | |
1859 return TypeInt::make(size->_lo, size->_hi, Type::WidenMin); | |
1860 else | |
1861 return size; | |
1862 } | |
1863 | |
1864 //------------------------------make------------------------------------------- | |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
1865 const TypeAry* TypeAry::make(const Type* elem, const TypeInt* size, bool stable) { |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
1866 if (UseCompressedOops && elem->isa_oopptr()) { |
221
1e026f8da827
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
183
diff
changeset
|
1867 elem = elem->make_narrowoop(); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
1868 } |
0 | 1869 size = normalize_array_size(size); |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
1870 return (TypeAry*)(new TypeAry(elem,size,stable))->hashcons(); |
0 | 1871 } |
1872 | |
1873 //------------------------------meet------------------------------------------- | |
1874 // Compute the MEET of two types. It returns a new Type object. | |
1875 const Type *TypeAry::xmeet( const Type *t ) const { | |
1876 // Perform a fast test for common case; meeting the same types together. | |
1877 if( this == t ) return this; // Meeting same type-rep? | |
1878 | |
1879 // Current "this->_base" is Ary | |
1880 switch (t->base()) { // switch on original type | |
1881 | |
1882 case Bottom: // Ye Olde Default | |
1883 return t; | |
1884 | |
1885 default: // All else is a mistake | |
1886 typerr(t); | |
1887 | |
1888 case Array: { // Meeting 2 arrays? | |
1889 const TypeAry *a = t->is_ary(); | |
1890 return TypeAry::make(_elem->meet(a->_elem), | |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
1891 _size->xmeet(a->_size)->is_int(), |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
1892 _stable & a->_stable); |
0 | 1893 } |
1894 case Top: | |
1895 break; | |
1896 } | |
1897 return this; // Return the double constant | |
1898 } | |
1899 | |
1900 //------------------------------xdual------------------------------------------ | |
1901 // Dual: compute field-by-field dual | |
1902 const Type *TypeAry::xdual() const { | |
1903 const TypeInt* size_dual = _size->dual()->is_int(); | |
1904 size_dual = normalize_array_size(size_dual); | |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
1905 return new TypeAry(_elem->dual(), size_dual, !_stable); |
0 | 1906 } |
1907 | |
1908 //------------------------------eq--------------------------------------------- | |
1909 // Structural equality check for Type representations | |
1910 bool TypeAry::eq( const Type *t ) const { | |
1911 const TypeAry *a = (const TypeAry*)t; | |
1912 return _elem == a->_elem && | |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
1913 _stable == a->_stable && |
0 | 1914 _size == a->_size; |
1915 } | |
1916 | |
1917 //------------------------------hash------------------------------------------- | |
1918 // Type-specific hashing function. | |
1919 int TypeAry::hash(void) const { | |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
1920 return (intptr_t)_elem + (intptr_t)_size + (_stable ? 43 : 0); |
0 | 1921 } |
1922 | |
820
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
1923 //----------------------interface_vs_oop--------------------------------------- |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
1924 #ifdef ASSERT |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
1925 bool TypeAry::interface_vs_oop(const Type *t) const { |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
1926 const TypeAry* t_ary = t->is_ary(); |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
1927 if (t_ary) { |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
1928 return _elem->interface_vs_oop(t_ary->_elem); |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
1929 } |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
1930 return false; |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
1931 } |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
1932 #endif |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
1933 |
0 | 1934 //------------------------------dump2------------------------------------------ |
1935 #ifndef PRODUCT | |
1936 void TypeAry::dump2( Dict &d, uint depth, outputStream *st ) const { | |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
1937 if (_stable) st->print("stable:"); |
0 | 1938 _elem->dump2(d, depth, st); |
1939 st->print("["); | |
1940 _size->dump2(d, depth, st); | |
1941 st->print("]"); | |
1942 } | |
1943 #endif | |
1944 | |
1945 //------------------------------singleton-------------------------------------- | |
1946 // TRUE if Type is a singleton type, FALSE otherwise. Singletons are simple | |
1947 // constants (Ldi nodes). Singletons are integer, float or double constants | |
1948 // or a single symbol. | |
1949 bool TypeAry::singleton(void) const { | |
1950 return false; // Never a singleton | |
1951 } | |
1952 | |
1953 bool TypeAry::empty(void) const { | |
1954 return _elem->empty() || _size->empty(); | |
1955 } | |
1956 | |
1957 //--------------------------ary_must_be_exact---------------------------------- | |
1958 bool TypeAry::ary_must_be_exact() const { | |
1959 if (!UseExactTypes) return false; | |
1960 // This logic looks at the element type of an array, and returns true | |
1961 // if the element type is either a primitive or a final instance class. | |
1962 // In such cases, an array built on this ary must have no subclasses. | |
1963 if (_elem == BOTTOM) return false; // general array not exact | |
1964 if (_elem == TOP ) return false; // inverted general array not exact | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
1965 const TypeOopPtr* toop = NULL; |
221
1e026f8da827
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
183
diff
changeset
|
1966 if (UseCompressedOops && _elem->isa_narrowoop()) { |
1e026f8da827
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
183
diff
changeset
|
1967 toop = _elem->make_ptr()->isa_oopptr(); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
1968 } else { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
1969 toop = _elem->isa_oopptr(); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
1970 } |
0 | 1971 if (!toop) return true; // a primitive type, like int |
1972 ciKlass* tklass = toop->klass(); | |
1973 if (tklass == NULL) return false; // unloaded class | |
1974 if (!tklass->is_loaded()) return false; // unloaded class | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
1975 const TypeInstPtr* tinst; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
1976 if (_elem->isa_narrowoop()) |
221
1e026f8da827
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
183
diff
changeset
|
1977 tinst = _elem->make_ptr()->isa_instptr(); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
1978 else |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
1979 tinst = _elem->isa_instptr(); |
221
1e026f8da827
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
183
diff
changeset
|
1980 if (tinst) |
1e026f8da827
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
183
diff
changeset
|
1981 return tklass->as_instance_klass()->is_final(); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
1982 const TypeAryPtr* tap; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
1983 if (_elem->isa_narrowoop()) |
221
1e026f8da827
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
183
diff
changeset
|
1984 tap = _elem->make_ptr()->isa_aryptr(); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
1985 else |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
1986 tap = _elem->isa_aryptr(); |
221
1e026f8da827
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
183
diff
changeset
|
1987 if (tap) |
1e026f8da827
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
183
diff
changeset
|
1988 return tap->ary()->ary_must_be_exact(); |
0 | 1989 return false; |
1990 } | |
1991 | |
6179
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
1992 //==============================TypeVect======================================= |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
1993 // Convenience common pre-built types. |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
1994 const TypeVect *TypeVect::VECTS = NULL; // 32-bit vectors |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
1995 const TypeVect *TypeVect::VECTD = NULL; // 64-bit vectors |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
1996 const TypeVect *TypeVect::VECTX = NULL; // 128-bit vectors |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
1997 const TypeVect *TypeVect::VECTY = NULL; // 256-bit vectors |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
1998 |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
1999 //------------------------------make------------------------------------------- |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2000 const TypeVect* TypeVect::make(const Type *elem, uint length) { |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2001 BasicType elem_bt = elem->array_element_basic_type(); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2002 assert(is_java_primitive(elem_bt), "only primitive types in vector"); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2003 assert(length > 1 && is_power_of_2(length), "vector length is power of 2"); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2004 assert(Matcher::vector_size_supported(elem_bt, length), "length in range"); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2005 int size = length * type2aelembytes(elem_bt); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2006 switch (Matcher::vector_ideal_reg(size)) { |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2007 case Op_VecS: |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2008 return (TypeVect*)(new TypeVectS(elem, length))->hashcons(); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2009 case Op_VecD: |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2010 case Op_RegD: |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2011 return (TypeVect*)(new TypeVectD(elem, length))->hashcons(); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2012 case Op_VecX: |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2013 return (TypeVect*)(new TypeVectX(elem, length))->hashcons(); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2014 case Op_VecY: |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2015 return (TypeVect*)(new TypeVectY(elem, length))->hashcons(); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2016 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2017 ShouldNotReachHere(); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2018 return NULL; |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2019 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2020 |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2021 //------------------------------meet------------------------------------------- |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2022 // Compute the MEET of two types. It returns a new Type object. |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2023 const Type *TypeVect::xmeet( const Type *t ) const { |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2024 // Perform a fast test for common case; meeting the same types together. |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2025 if( this == t ) return this; // Meeting same type-rep? |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2026 |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2027 // Current "this->_base" is Vector |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2028 switch (t->base()) { // switch on original type |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2029 |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2030 case Bottom: // Ye Olde Default |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2031 return t; |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2032 |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2033 default: // All else is a mistake |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2034 typerr(t); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2035 |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2036 case VectorS: |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2037 case VectorD: |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2038 case VectorX: |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2039 case VectorY: { // Meeting 2 vectors? |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2040 const TypeVect* v = t->is_vect(); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2041 assert( base() == v->base(), ""); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2042 assert(length() == v->length(), ""); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2043 assert(element_basic_type() == v->element_basic_type(), ""); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2044 return TypeVect::make(_elem->xmeet(v->_elem), _length); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2045 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2046 case Top: |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2047 break; |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2048 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2049 return this; |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2050 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2051 |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2052 //------------------------------xdual------------------------------------------ |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2053 // Dual: compute field-by-field dual |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2054 const Type *TypeVect::xdual() const { |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2055 return new TypeVect(base(), _elem->dual(), _length); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2056 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2057 |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2058 //------------------------------eq--------------------------------------------- |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2059 // Structural equality check for Type representations |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2060 bool TypeVect::eq(const Type *t) const { |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2061 const TypeVect *v = t->is_vect(); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2062 return (_elem == v->_elem) && (_length == v->_length); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2063 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2064 |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2065 //------------------------------hash------------------------------------------- |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2066 // Type-specific hashing function. |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2067 int TypeVect::hash(void) const { |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2068 return (intptr_t)_elem + (intptr_t)_length; |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2069 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2070 |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2071 //------------------------------singleton-------------------------------------- |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2072 // TRUE if Type is a singleton type, FALSE otherwise. Singletons are simple |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2073 // constants (Ldi nodes). Vector is singleton if all elements are the same |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2074 // constant value (when vector is created with Replicate code). |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2075 bool TypeVect::singleton(void) const { |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2076 // There is no Con node for vectors yet. |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2077 // return _elem->singleton(); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2078 return false; |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2079 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2080 |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2081 bool TypeVect::empty(void) const { |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2082 return _elem->empty(); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2083 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2084 |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2085 //------------------------------dump2------------------------------------------ |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2086 #ifndef PRODUCT |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2087 void TypeVect::dump2(Dict &d, uint depth, outputStream *st) const { |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2088 switch (base()) { |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2089 case VectorS: |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2090 st->print("vectors["); break; |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2091 case VectorD: |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2092 st->print("vectord["); break; |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2093 case VectorX: |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2094 st->print("vectorx["); break; |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2095 case VectorY: |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2096 st->print("vectory["); break; |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2097 default: |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2098 ShouldNotReachHere(); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2099 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2100 st->print("%d]:{", _length); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2101 _elem->dump2(d, depth, st); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2102 st->print("}"); |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2103 } |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2104 #endif |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2105 |
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
2376
diff
changeset
|
2106 |
0 | 2107 //============================================================================= |
2108 // Convenience common pre-built types. | |
2109 const TypePtr *TypePtr::NULL_PTR; | |
2110 const TypePtr *TypePtr::NOTNULL; | |
2111 const TypePtr *TypePtr::BOTTOM; | |
2112 | |
2113 //------------------------------meet------------------------------------------- | |
2114 // Meet over the PTR enum | |
2115 const TypePtr::PTR TypePtr::ptr_meet[TypePtr::lastPTR][TypePtr::lastPTR] = { | |
2116 // TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, | |
2117 { /* Top */ TopPTR, AnyNull, Constant, Null, NotNull, BotPTR,}, | |
2118 { /* AnyNull */ AnyNull, AnyNull, Constant, BotPTR, NotNull, BotPTR,}, | |
2119 { /* Constant*/ Constant, Constant, Constant, BotPTR, NotNull, BotPTR,}, | |
2120 { /* Null */ Null, BotPTR, BotPTR, Null, BotPTR, BotPTR,}, | |
2121 { /* NotNull */ NotNull, NotNull, NotNull, BotPTR, NotNull, BotPTR,}, | |
2122 { /* BotPTR */ BotPTR, BotPTR, BotPTR, BotPTR, BotPTR, BotPTR,} | |
2123 }; | |
2124 | |
2125 //------------------------------make------------------------------------------- | |
2126 const TypePtr *TypePtr::make( TYPES t, enum PTR ptr, int offset ) { | |
2127 return (TypePtr*)(new TypePtr(t,ptr,offset))->hashcons(); | |
2128 } | |
2129 | |
2130 //------------------------------cast_to_ptr_type------------------------------- | |
2131 const Type *TypePtr::cast_to_ptr_type(PTR ptr) const { | |
2132 assert(_base == AnyPtr, "subclass must override cast_to_ptr_type"); | |
2133 if( ptr == _ptr ) return this; | |
2134 return make(_base, ptr, _offset); | |
2135 } | |
2136 | |
2137 //------------------------------get_con---------------------------------------- | |
2138 intptr_t TypePtr::get_con() const { | |
2139 assert( _ptr == Null, "" ); | |
2140 return _offset; | |
2141 } | |
2142 | |
2143 //------------------------------meet------------------------------------------- | |
2144 // Compute the MEET of two types. It returns a new Type object. | |
2145 const Type *TypePtr::xmeet( const Type *t ) const { | |
2146 // Perform a fast test for common case; meeting the same types together. | |
2147 if( this == t ) return this; // Meeting same type-rep? | |
2148 | |
2149 // Current "this->_base" is AnyPtr | |
2150 switch (t->base()) { // switch on original type | |
2151 case Int: // Mixing ints & oops happens when javac | |
2152 case Long: // reuses local variables | |
2153 case FloatTop: | |
2154 case FloatCon: | |
2155 case FloatBot: | |
2156 case DoubleTop: | |
2157 case DoubleCon: | |
2158 case DoubleBot: | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
2159 case NarrowOop: |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
2160 case NarrowKlass: |
0 | 2161 case Bottom: // Ye Olde Default |
2162 return Type::BOTTOM; | |
2163 case Top: | |
2164 return this; | |
2165 | |
2166 case AnyPtr: { // Meeting to AnyPtrs | |
2167 const TypePtr *tp = t->is_ptr(); | |
2168 return make( AnyPtr, meet_ptr(tp->ptr()), meet_offset(tp->offset()) ); | |
2169 } | |
2170 case RawPtr: // For these, flip the call around to cut down | |
2171 case OopPtr: | |
2172 case InstPtr: // on the cases I have to handle. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2173 case AryPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2174 case MetadataPtr: |
0 | 2175 case KlassPtr: |
2176 return t->xmeet(this); // Call in reverse direction | |
2177 default: // All else is a mistake | |
2178 typerr(t); | |
2179 | |
2180 } | |
2181 return this; | |
2182 } | |
2183 | |
2184 //------------------------------meet_offset------------------------------------ | |
2185 int TypePtr::meet_offset( int offset ) const { | |
2186 // Either is 'TOP' offset? Return the other offset! | |
2187 if( _offset == OffsetTop ) return offset; | |
2188 if( offset == OffsetTop ) return _offset; | |
2189 // If either is different, return 'BOTTOM' offset | |
2190 if( _offset != offset ) return OffsetBot; | |
2191 return _offset; | |
2192 } | |
2193 | |
2194 //------------------------------dual_offset------------------------------------ | |
2195 int TypePtr::dual_offset( ) const { | |
2196 if( _offset == OffsetTop ) return OffsetBot;// Map 'TOP' into 'BOTTOM' | |
2197 if( _offset == OffsetBot ) return OffsetTop;// Map 'BOTTOM' into 'TOP' | |
2198 return _offset; // Map everything else into self | |
2199 } | |
2200 | |
2201 //------------------------------xdual------------------------------------------ | |
2202 // Dual: compute field-by-field dual | |
2203 const TypePtr::PTR TypePtr::ptr_dual[TypePtr::lastPTR] = { | |
2204 BotPTR, NotNull, Constant, Null, AnyNull, TopPTR | |
2205 }; | |
2206 const Type *TypePtr::xdual() const { | |
2207 return new TypePtr( AnyPtr, dual_ptr(), dual_offset() ); | |
2208 } | |
2209 | |
306
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2210 //------------------------------xadd_offset------------------------------------ |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2211 int TypePtr::xadd_offset( intptr_t offset ) const { |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2212 // Adding to 'TOP' offset? Return 'TOP'! |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2213 if( _offset == OffsetTop || offset == OffsetTop ) return OffsetTop; |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2214 // Adding to 'BOTTOM' offset? Return 'BOTTOM'! |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2215 if( _offset == OffsetBot || offset == OffsetBot ) return OffsetBot; |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2216 // Addition overflows or "accidentally" equals to OffsetTop? Return 'BOTTOM'! |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2217 offset += (intptr_t)_offset; |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2218 if (offset != (int)offset || offset == OffsetTop) return OffsetBot; |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2219 |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2220 // assert( _offset >= 0 && _offset+offset >= 0, "" ); |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2221 // It is possible to construct a negative offset during PhaseCCP |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2222 |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2223 return (int)offset; // Sum valid offsets |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2224 } |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2225 |
0 | 2226 //------------------------------add_offset------------------------------------- |
306
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2227 const TypePtr *TypePtr::add_offset( intptr_t offset ) const { |
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2228 return make( AnyPtr, _ptr, xadd_offset(offset) ); |
0 | 2229 } |
2230 | |
2231 //------------------------------eq--------------------------------------------- | |
2232 // Structural equality check for Type representations | |
2233 bool TypePtr::eq( const Type *t ) const { | |
2234 const TypePtr *a = (const TypePtr*)t; | |
2235 return _ptr == a->ptr() && _offset == a->offset(); | |
2236 } | |
2237 | |
2238 //------------------------------hash------------------------------------------- | |
2239 // Type-specific hashing function. | |
2240 int TypePtr::hash(void) const { | |
2241 return _ptr + _offset; | |
2242 } | |
2243 | |
2244 //------------------------------dump2------------------------------------------ | |
2245 const char *const TypePtr::ptr_msg[TypePtr::lastPTR] = { | |
2246 "TopPTR","AnyNull","Constant","NULL","NotNull","BotPTR" | |
2247 }; | |
2248 | |
2249 #ifndef PRODUCT | |
2250 void TypePtr::dump2( Dict &d, uint depth, outputStream *st ) const { | |
2251 if( _ptr == Null ) st->print("NULL"); | |
2252 else st->print("%s *", ptr_msg[_ptr]); | |
2253 if( _offset == OffsetTop ) st->print("+top"); | |
2254 else if( _offset == OffsetBot ) st->print("+bot"); | |
2255 else if( _offset ) st->print("+%d", _offset); | |
2256 } | |
2257 #endif | |
2258 | |
2259 //------------------------------singleton-------------------------------------- | |
2260 // TRUE if Type is a singleton type, FALSE otherwise. Singletons are simple | |
2261 // constants | |
2262 bool TypePtr::singleton(void) const { | |
2263 // TopPTR, Null, AnyNull, Constant are all singletons | |
2264 return (_offset != OffsetBot) && !below_centerline(_ptr); | |
2265 } | |
2266 | |
2267 bool TypePtr::empty(void) const { | |
2268 return (_offset == OffsetTop) || above_centerline(_ptr); | |
2269 } | |
2270 | |
2271 //============================================================================= | |
2272 // Convenience common pre-built types. | |
2273 const TypeRawPtr *TypeRawPtr::BOTTOM; | |
2274 const TypeRawPtr *TypeRawPtr::NOTNULL; | |
2275 | |
2276 //------------------------------make------------------------------------------- | |
2277 const TypeRawPtr *TypeRawPtr::make( enum PTR ptr ) { | |
2278 assert( ptr != Constant, "what is the constant?" ); | |
2279 assert( ptr != Null, "Use TypePtr for NULL" ); | |
2280 return (TypeRawPtr*)(new TypeRawPtr(ptr,0))->hashcons(); | |
2281 } | |
2282 | |
2283 const TypeRawPtr *TypeRawPtr::make( address bits ) { | |
2284 assert( bits, "Use TypePtr for NULL" ); | |
2285 return (TypeRawPtr*)(new TypeRawPtr(Constant,bits))->hashcons(); | |
2286 } | |
2287 | |
2288 //------------------------------cast_to_ptr_type------------------------------- | |
2289 const Type *TypeRawPtr::cast_to_ptr_type(PTR ptr) const { | |
2290 assert( ptr != Constant, "what is the constant?" ); | |
2291 assert( ptr != Null, "Use TypePtr for NULL" ); | |
2292 assert( _bits==0, "Why cast a constant address?"); | |
2293 if( ptr == _ptr ) return this; | |
2294 return make(ptr); | |
2295 } | |
2296 | |
2297 //------------------------------get_con---------------------------------------- | |
2298 intptr_t TypeRawPtr::get_con() const { | |
2299 assert( _ptr == Null || _ptr == Constant, "" ); | |
2300 return (intptr_t)_bits; | |
2301 } | |
2302 | |
2303 //------------------------------meet------------------------------------------- | |
2304 // Compute the MEET of two types. It returns a new Type object. | |
2305 const Type *TypeRawPtr::xmeet( const Type *t ) const { | |
2306 // Perform a fast test for common case; meeting the same types together. | |
2307 if( this == t ) return this; // Meeting same type-rep? | |
2308 | |
2309 // Current "this->_base" is RawPtr | |
2310 switch( t->base() ) { // switch on original type | |
2311 case Bottom: // Ye Olde Default | |
2312 return t; | |
2313 case Top: | |
2314 return this; | |
2315 case AnyPtr: // Meeting to AnyPtrs | |
2316 break; | |
2317 case RawPtr: { // might be top, bot, any/not or constant | |
2318 enum PTR tptr = t->is_ptr()->ptr(); | |
2319 enum PTR ptr = meet_ptr( tptr ); | |
2320 if( ptr == Constant ) { // Cannot be equal constants, so... | |
2321 if( tptr == Constant && _ptr != Constant) return t; | |
2322 if( _ptr == Constant && tptr != Constant) return this; | |
2323 ptr = NotNull; // Fall down in lattice | |
2324 } | |
2325 return make( ptr ); | |
2326 } | |
2327 | |
2328 case OopPtr: | |
2329 case InstPtr: | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2330 case AryPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2331 case MetadataPtr: |
0 | 2332 case KlassPtr: |
2333 return TypePtr::BOTTOM; // Oop meet raw is not well defined | |
2334 default: // All else is a mistake | |
2335 typerr(t); | |
2336 } | |
2337 | |
2338 // Found an AnyPtr type vs self-RawPtr type | |
2339 const TypePtr *tp = t->is_ptr(); | |
2340 switch (tp->ptr()) { | |
2341 case TypePtr::TopPTR: return this; | |
2342 case TypePtr::BotPTR: return t; | |
2343 case TypePtr::Null: | |
2344 if( _ptr == TypePtr::TopPTR ) return t; | |
2345 return TypeRawPtr::BOTTOM; | |
2346 case TypePtr::NotNull: return TypePtr::make( AnyPtr, meet_ptr(TypePtr::NotNull), tp->meet_offset(0) ); | |
2347 case TypePtr::AnyNull: | |
2348 if( _ptr == TypePtr::Constant) return this; | |
2349 return make( meet_ptr(TypePtr::AnyNull) ); | |
2350 default: ShouldNotReachHere(); | |
2351 } | |
2352 return this; | |
2353 } | |
2354 | |
2355 //------------------------------xdual------------------------------------------ | |
2356 // Dual: compute field-by-field dual | |
2357 const Type *TypeRawPtr::xdual() const { | |
2358 return new TypeRawPtr( dual_ptr(), _bits ); | |
2359 } | |
2360 | |
2361 //------------------------------add_offset------------------------------------- | |
306
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2362 const TypePtr *TypeRawPtr::add_offset( intptr_t offset ) const { |
0 | 2363 if( offset == OffsetTop ) return BOTTOM; // Undefined offset-> undefined pointer |
2364 if( offset == OffsetBot ) return BOTTOM; // Unknown offset-> unknown pointer | |
2365 if( offset == 0 ) return this; // No change | |
2366 switch (_ptr) { | |
2367 case TypePtr::TopPTR: | |
2368 case TypePtr::BotPTR: | |
2369 case TypePtr::NotNull: | |
2370 return this; | |
2371 case TypePtr::Null: | |
2115
78e248949382
6876037: CTW fails jdk7/hotspot/src/share/vm/opto/type.cpp:2055. assert(bits,"Use TypePtr for NULL")
kvn
parents:
1972
diff
changeset
|
2372 case TypePtr::Constant: { |
78e248949382
6876037: CTW fails jdk7/hotspot/src/share/vm/opto/type.cpp:2055. assert(bits,"Use TypePtr for NULL")
kvn
parents:
1972
diff
changeset
|
2373 address bits = _bits+offset; |
78e248949382
6876037: CTW fails jdk7/hotspot/src/share/vm/opto/type.cpp:2055. assert(bits,"Use TypePtr for NULL")
kvn
parents:
1972
diff
changeset
|
2374 if ( bits == 0 ) return TypePtr::NULL_PTR; |
78e248949382
6876037: CTW fails jdk7/hotspot/src/share/vm/opto/type.cpp:2055. assert(bits,"Use TypePtr for NULL")
kvn
parents:
1972
diff
changeset
|
2375 return make( bits ); |
78e248949382
6876037: CTW fails jdk7/hotspot/src/share/vm/opto/type.cpp:2055. assert(bits,"Use TypePtr for NULL")
kvn
parents:
1972
diff
changeset
|
2376 } |
0 | 2377 default: ShouldNotReachHere(); |
2378 } | |
2379 return NULL; // Lint noise | |
2380 } | |
2381 | |
2382 //------------------------------eq--------------------------------------------- | |
2383 // Structural equality check for Type representations | |
2384 bool TypeRawPtr::eq( const Type *t ) const { | |
2385 const TypeRawPtr *a = (const TypeRawPtr*)t; | |
2386 return _bits == a->_bits && TypePtr::eq(t); | |
2387 } | |
2388 | |
2389 //------------------------------hash------------------------------------------- | |
2390 // Type-specific hashing function. | |
2391 int TypeRawPtr::hash(void) const { | |
2392 return (intptr_t)_bits + TypePtr::hash(); | |
2393 } | |
2394 | |
2395 //------------------------------dump2------------------------------------------ | |
2396 #ifndef PRODUCT | |
2397 void TypeRawPtr::dump2( Dict &d, uint depth, outputStream *st ) const { | |
2398 if( _ptr == Constant ) | |
2399 st->print(INTPTR_FORMAT, _bits); | |
2400 else | |
2401 st->print("rawptr:%s", ptr_msg[_ptr]); | |
2402 } | |
2403 #endif | |
2404 | |
2405 //============================================================================= | |
2406 // Convenience common pre-built type. | |
2407 const TypeOopPtr *TypeOopPtr::BOTTOM; | |
2408 | |
163 | 2409 //------------------------------TypeOopPtr------------------------------------- |
2410 TypeOopPtr::TypeOopPtr( TYPES t, PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id ) | |
2411 : TypePtr(t, ptr, offset), | |
2412 _const_oop(o), _klass(k), | |
2413 _klass_is_exact(xk), | |
2414 _is_ptr_to_narrowoop(false), | |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
2415 _is_ptr_to_narrowklass(false), |
10278 | 2416 _is_ptr_to_boxed_value(false), |
163 | 2417 _instance_id(instance_id) { |
10278 | 2418 if (Compile::current()->eliminate_boxing() && (t == InstPtr) && |
2419 (offset > 0) && xk && (k != 0) && k->is_instance_klass()) { | |
2420 _is_ptr_to_boxed_value = k->as_instance_klass()->is_boxed_value_offset(offset); | |
2421 } | |
163 | 2422 #ifdef _LP64 |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
2423 if (_offset != 0) { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2424 if (_offset == oopDesc::klass_offset_in_bytes()) { |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
10278
diff
changeset
|
2425 _is_ptr_to_narrowklass = UseCompressedClassPointers; |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2426 } else if (klass() == NULL) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2427 // Array with unknown body type |
163 | 2428 assert(this->isa_aryptr(), "only arrays without klass"); |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
2429 _is_ptr_to_narrowoop = UseCompressedOops; |
163 | 2430 } else if (this->isa_aryptr()) { |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
2431 _is_ptr_to_narrowoop = (UseCompressedOops && klass()->is_obj_array_klass() && |
163 | 2432 _offset != arrayOopDesc::length_offset_in_bytes()); |
2433 } else if (klass()->is_instance_klass()) { | |
2434 ciInstanceKlass* ik = klass()->as_instance_klass(); | |
2435 ciField* field = NULL; | |
2436 if (this->isa_klassptr()) { | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2437 // Perm objects don't use compressed references |
163 | 2438 } else if (_offset == OffsetBot || _offset == OffsetTop) { |
2439 // unsafe access | |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
2440 _is_ptr_to_narrowoop = UseCompressedOops; |
163 | 2441 } else { // exclude unsafe ops |
2442 assert(this->isa_instptr(), "must be an instance ptr."); | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2443 |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2444 if (klass() == ciEnv::current()->Class_klass() && |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2445 (_offset == java_lang_Class::klass_offset_in_bytes() || |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2446 _offset == java_lang_Class::array_klass_offset_in_bytes())) { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2447 // Special hidden fields from the Class. |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2448 assert(this->isa_instptr(), "must be an instance ptr."); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2449 _is_ptr_to_narrowoop = false; |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2450 } else if (klass() == ciEnv::current()->Class_klass() && |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6728
diff
changeset
|
2451 _offset >= InstanceMirrorKlass::offset_of_static_fields()) { |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2452 // Static fields |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2453 assert(o != NULL, "must be constant"); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2454 ciInstanceKlass* k = o->as_instance()->java_lang_Class_klass()->as_instance_klass(); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2455 ciField* field = k->get_field_by_offset(_offset, true); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2456 assert(field != NULL, "missing field"); |
163 | 2457 BasicType basic_elem_type = field->layout_type(); |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
2458 _is_ptr_to_narrowoop = UseCompressedOops && (basic_elem_type == T_OBJECT || |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
2459 basic_elem_type == T_ARRAY); |
163 | 2460 } else { |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2461 // Instance fields which contains a compressed oop references. |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2462 field = ik->get_field_by_offset(_offset, false); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2463 if (field != NULL) { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2464 BasicType basic_elem_type = field->layout_type(); |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
2465 _is_ptr_to_narrowoop = UseCompressedOops && (basic_elem_type == T_OBJECT || |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
2466 basic_elem_type == T_ARRAY); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2467 } else if (klass()->equals(ciEnv::current()->Object_klass())) { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2468 // Compile::find_alias_type() cast exactness on all types to verify |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2469 // that it does not affect alias type. |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
2470 _is_ptr_to_narrowoop = UseCompressedOops; |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2471 } else { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2472 // Type for the copy start in LibraryCallKit::inline_native_clone(). |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
2473 _is_ptr_to_narrowoop = UseCompressedOops; |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2354
diff
changeset
|
2474 } |
163 | 2475 } |
2476 } | |
2477 } | |
2478 } | |
2479 #endif | |
2480 } | |
2481 | |
0 | 2482 //------------------------------make------------------------------------------- |
2483 const TypeOopPtr *TypeOopPtr::make(PTR ptr, | |
958
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
827
diff
changeset
|
2484 int offset, int instance_id) { |
0 | 2485 assert(ptr != Constant, "no constant generic pointers"); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2486 ciKlass* k = Compile::current()->env()->Object_klass(); |
0 | 2487 bool xk = false; |
2488 ciObject* o = NULL; | |
958
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
827
diff
changeset
|
2489 return (TypeOopPtr*)(new TypeOopPtr(OopPtr, ptr, k, xk, o, offset, instance_id))->hashcons(); |
0 | 2490 } |
2491 | |
2492 | |
2493 //------------------------------cast_to_ptr_type------------------------------- | |
2494 const Type *TypeOopPtr::cast_to_ptr_type(PTR ptr) const { | |
2495 assert(_base == OopPtr, "subclass must override cast_to_ptr_type"); | |
2496 if( ptr == _ptr ) return this; | |
992 | 2497 return make(ptr, _offset, _instance_id); |
0 | 2498 } |
2499 | |
247 | 2500 //-----------------------------cast_to_instance_id---------------------------- |
223 | 2501 const TypeOopPtr *TypeOopPtr::cast_to_instance_id(int instance_id) const { |
0 | 2502 // There are no instances of a general oop. |
2503 // Return self unchanged. | |
2504 return this; | |
2505 } | |
2506 | |
2507 //-----------------------------cast_to_exactness------------------------------- | |
2508 const Type *TypeOopPtr::cast_to_exactness(bool klass_is_exact) const { | |
2509 // There is no such thing as an exact general oop. | |
2510 // Return self unchanged. | |
2511 return this; | |
2512 } | |
2513 | |
2514 | |
2515 //------------------------------as_klass_type---------------------------------- | |
2516 // Return the klass type corresponding to this instance or array type. | |
2517 // It is the type that is loaded from an object of this type. | |
2518 const TypeKlassPtr* TypeOopPtr::as_klass_type() const { | |
2519 ciKlass* k = klass(); | |
2520 bool xk = klass_is_exact(); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2521 if (k == NULL) |
0 | 2522 return TypeKlassPtr::OBJECT; |
2523 else | |
2524 return TypeKlassPtr::make(xk? Constant: NotNull, k, 0); | |
2525 } | |
2526 | |
2527 | |
2528 //------------------------------meet------------------------------------------- | |
2529 // Compute the MEET of two types. It returns a new Type object. | |
2530 const Type *TypeOopPtr::xmeet( const Type *t ) const { | |
2531 // Perform a fast test for common case; meeting the same types together. | |
2532 if( this == t ) return this; // Meeting same type-rep? | |
2533 | |
2534 // Current "this->_base" is OopPtr | |
2535 switch (t->base()) { // switch on original type | |
2536 | |
2537 case Int: // Mixing ints & oops happens when javac | |
2538 case Long: // reuses local variables | |
2539 case FloatTop: | |
2540 case FloatCon: | |
2541 case FloatBot: | |
2542 case DoubleTop: | |
2543 case DoubleCon: | |
2544 case DoubleBot: | |
293
c3e045194476
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
247
diff
changeset
|
2545 case NarrowOop: |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
2546 case NarrowKlass: |
0 | 2547 case Bottom: // Ye Olde Default |
2548 return Type::BOTTOM; | |
2549 case Top: | |
2550 return this; | |
2551 | |
2552 default: // All else is a mistake | |
2553 typerr(t); | |
2554 | |
2555 case RawPtr: | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2556 case MetadataPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2557 case KlassPtr: |
0 | 2558 return TypePtr::BOTTOM; // Oop meet raw is not well defined |
2559 | |
2560 case AnyPtr: { | |
2561 // Found an AnyPtr type vs self-OopPtr type | |
2562 const TypePtr *tp = t->is_ptr(); | |
2563 int offset = meet_offset(tp->offset()); | |
2564 PTR ptr = meet_ptr(tp->ptr()); | |
2565 switch (tp->ptr()) { | |
2566 case Null: | |
2567 if (ptr == Null) return TypePtr::make(AnyPtr, ptr, offset); | |
2568 // else fall through: | |
2569 case TopPTR: | |
992 | 2570 case AnyNull: { |
2571 int instance_id = meet_instance_id(InstanceTop); | |
2572 return make(ptr, offset, instance_id); | |
2573 } | |
0 | 2574 case BotPTR: |
2575 case NotNull: | |
2576 return TypePtr::make(AnyPtr, ptr, offset); | |
2577 default: typerr(t); | |
2578 } | |
2579 } | |
2580 | |
2581 case OopPtr: { // Meeting to other OopPtrs | |
2582 const TypeOopPtr *tp = t->is_oopptr(); | |
958
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
827
diff
changeset
|
2583 int instance_id = meet_instance_id(tp->instance_id()); |
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
827
diff
changeset
|
2584 return make( meet_ptr(tp->ptr()), meet_offset(tp->offset()), instance_id ); |
0 | 2585 } |
2586 | |
2587 case InstPtr: // For these, flip the call around to cut down | |
2588 case AryPtr: | |
2589 return t->xmeet(this); // Call in reverse direction | |
2590 | |
2591 } // End of switch | |
2592 return this; // Return the double constant | |
2593 } | |
2594 | |
2595 | |
2596 //------------------------------xdual------------------------------------------ | |
2597 // Dual of a pure heap pointer. No relevant klass or oop information. | |
2598 const Type *TypeOopPtr::xdual() const { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2599 assert(klass() == Compile::current()->env()->Object_klass(), "no klasses here"); |
0 | 2600 assert(const_oop() == NULL, "no constants here"); |
223 | 2601 return new TypeOopPtr(_base, dual_ptr(), klass(), klass_is_exact(), const_oop(), dual_offset(), dual_instance_id() ); |
0 | 2602 } |
2603 | |
2604 //--------------------------make_from_klass_common----------------------------- | |
2605 // Computes the element-type given a klass. | |
2606 const TypeOopPtr* TypeOopPtr::make_from_klass_common(ciKlass *klass, bool klass_change, bool try_for_exact) { | |
2607 if (klass->is_instance_klass()) { | |
2608 Compile* C = Compile::current(); | |
2609 Dependencies* deps = C->dependencies(); | |
2610 assert((deps != NULL) == (C->method() != NULL && C->method()->code_size() > 0), "sanity"); | |
2611 // Element is an instance | |
2612 bool klass_is_exact = false; | |
2613 if (klass->is_loaded()) { | |
2614 // Try to set klass_is_exact. | |
2615 ciInstanceKlass* ik = klass->as_instance_klass(); | |
2616 klass_is_exact = ik->is_final(); | |
2617 if (!klass_is_exact && klass_change | |
2618 && deps != NULL && UseUniqueSubclasses) { | |
2619 ciInstanceKlass* sub = ik->unique_concrete_subklass(); | |
2620 if (sub != NULL) { | |
2621 deps->assert_abstract_with_unique_concrete_subtype(ik, sub); | |
2622 klass = ik = sub; | |
2623 klass_is_exact = sub->is_final(); | |
2624 } | |
2625 } | |
2626 if (!klass_is_exact && try_for_exact | |
2627 && deps != NULL && UseExactTypes) { | |
2628 if (!ik->is_interface() && !ik->has_subklass()) { | |
2629 // Add a dependence; if concrete subclass added we need to recompile | |
2630 deps->assert_leaf_type(ik); | |
2631 klass_is_exact = true; | |
2632 } | |
2633 } | |
2634 } | |
2635 return TypeInstPtr::make(TypePtr::BotPTR, klass, klass_is_exact, NULL, 0); | |
2636 } else if (klass->is_obj_array_klass()) { | |
2637 // Element is an object array. Recursively call ourself. | |
2638 const TypeOopPtr *etype = TypeOopPtr::make_from_klass_common(klass->as_obj_array_klass()->element_klass(), false, try_for_exact); | |
2639 bool xk = etype->klass_is_exact(); | |
2640 const TypeAry* arr0 = TypeAry::make(etype, TypeInt::POS); | |
2641 // We used to pass NotNull in here, asserting that the sub-arrays | |
2642 // are all not-null. This is not true in generally, as code can | |
2643 // slam NULLs down in the subarrays. | |
2644 const TypeAryPtr* arr = TypeAryPtr::make(TypePtr::BotPTR, arr0, klass, xk, 0); | |
2645 return arr; | |
2646 } else if (klass->is_type_array_klass()) { | |
2647 // Element is an typeArray | |
2648 const Type* etype = get_const_basic_type(klass->as_type_array_klass()->element_type()); | |
2649 const TypeAry* arr0 = TypeAry::make(etype, TypeInt::POS); | |
2650 // We used to pass NotNull in here, asserting that the array pointer | |
2651 // is not-null. That was not true in general. | |
2652 const TypeAryPtr* arr = TypeAryPtr::make(TypePtr::BotPTR, arr0, klass, true, 0); | |
2653 return arr; | |
2654 } else { | |
2655 ShouldNotReachHere(); | |
2656 return NULL; | |
2657 } | |
2658 } | |
2659 | |
2660 //------------------------------make_from_constant----------------------------- | |
2661 // Make a java pointer from an oop constant | |
10278 | 2662 const TypeOopPtr* TypeOopPtr::make_from_constant(ciObject* o, |
2663 bool require_constant, | |
2664 bool is_autobox_cache) { | |
2665 assert(!o->is_null_object(), "null object not yet handled here."); | |
2666 ciKlass* klass = o->klass(); | |
2667 if (klass->is_instance_klass()) { | |
2668 // Element is an instance | |
2669 if (require_constant) { | |
2670 if (!o->can_be_constant()) return NULL; | |
2671 } else if (!o->should_be_constant()) { | |
2672 return TypeInstPtr::make(TypePtr::NotNull, klass, true, NULL, 0); | |
2673 } | |
2674 return TypeInstPtr::make(o); | |
2675 } else if (klass->is_obj_array_klass()) { | |
2676 // Element is an object array. Recursively call ourself. | |
2677 const TypeOopPtr *etype = | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2678 TypeOopPtr::make_from_klass_raw(klass->as_obj_array_klass()->element_klass()); |
10278 | 2679 if (is_autobox_cache) { |
2680 // The pointers in the autobox arrays are always non-null. | |
2681 etype = etype->cast_to_ptr_type(TypePtr::NotNull)->is_oopptr(); | |
2682 } | |
2683 const TypeAry* arr0 = TypeAry::make(etype, TypeInt::make(o->as_array()->length())); | |
2684 // We used to pass NotNull in here, asserting that the sub-arrays | |
2685 // are all not-null. This is not true in generally, as code can | |
2686 // slam NULLs down in the subarrays. | |
2687 if (require_constant) { | |
2688 if (!o->can_be_constant()) return NULL; | |
2689 } else if (!o->should_be_constant()) { | |
2690 return TypeAryPtr::make(TypePtr::NotNull, arr0, klass, true, 0); | |
2691 } | |
2692 const TypeAryPtr* arr = TypeAryPtr::make(TypePtr::Constant, o, arr0, klass, true, 0, InstanceBot, is_autobox_cache); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2693 return arr; |
10278 | 2694 } else if (klass->is_type_array_klass()) { |
2695 // Element is an typeArray | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2696 const Type* etype = |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2697 (Type*)get_const_basic_type(klass->as_type_array_klass()->element_type()); |
10278 | 2698 const TypeAry* arr0 = TypeAry::make(etype, TypeInt::make(o->as_array()->length())); |
2699 // We used to pass NotNull in here, asserting that the array pointer | |
2700 // is not-null. That was not true in general. | |
2701 if (require_constant) { | |
2702 if (!o->can_be_constant()) return NULL; | |
2703 } else if (!o->should_be_constant()) { | |
2704 return TypeAryPtr::make(TypePtr::NotNull, arr0, klass, true, 0); | |
2705 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2706 const TypeAryPtr* arr = TypeAryPtr::make(TypePtr::Constant, o, arr0, klass, true, 0); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2707 return arr; |
0 | 2708 } |
2709 | |
6182
765ee2d1674b
7157365: jruby/bench.bench_timeout crashes with JVM internal error
twisti
parents:
6179
diff
changeset
|
2710 fatal("unhandled object type"); |
0 | 2711 return NULL; |
2712 } | |
2713 | |
2714 //------------------------------get_con---------------------------------------- | |
2715 intptr_t TypeOopPtr::get_con() const { | |
2716 assert( _ptr == Null || _ptr == Constant, "" ); | |
2717 assert( _offset >= 0, "" ); | |
2718 | |
2719 if (_offset != 0) { | |
2720 // After being ported to the compiler interface, the compiler no longer | |
2721 // directly manipulates the addresses of oops. Rather, it only has a pointer | |
2722 // to a handle at compile time. This handle is embedded in the generated | |
2723 // code and dereferenced at the time the nmethod is made. Until that time, | |
2724 // it is not reasonable to do arithmetic with the addresses of oops (we don't | |
2725 // have access to the addresses!). This does not seem to currently happen, | |
605 | 2726 // but this assertion here is to help prevent its occurence. |
0 | 2727 tty->print_cr("Found oop constant with non-zero offset"); |
2728 ShouldNotReachHere(); | |
2729 } | |
2730 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
958
diff
changeset
|
2731 return (intptr_t)const_oop()->constant_encoding(); |
0 | 2732 } |
2733 | |
2734 | |
2735 //-----------------------------filter------------------------------------------ | |
2736 // Do not allow interface-vs.-noninterface joins to collapse to top. | |
2737 const Type *TypeOopPtr::filter( const Type *kills ) const { | |
2738 | |
2739 const Type* ft = join(kills); | |
2740 const TypeInstPtr* ftip = ft->isa_instptr(); | |
2741 const TypeInstPtr* ktip = kills->isa_instptr(); | |
555 | 2742 const TypeKlassPtr* ftkp = ft->isa_klassptr(); |
2743 const TypeKlassPtr* ktkp = kills->isa_klassptr(); | |
0 | 2744 |
2745 if (ft->empty()) { | |
2746 // Check for evil case of 'this' being a class and 'kills' expecting an | |
2747 // interface. This can happen because the bytecodes do not contain | |
2748 // enough type info to distinguish a Java-level interface variable | |
2749 // from a Java-level object variable. If we meet 2 classes which | |
2750 // both implement interface I, but their meet is at 'j/l/O' which | |
2751 // doesn't implement I, we have no way to tell if the result should | |
2752 // be 'I' or 'j/l/O'. Thus we'll pick 'j/l/O'. If this then flows | |
2753 // into a Phi which "knows" it's an Interface type we'll have to | |
2754 // uplift the type. | |
2755 if (!empty() && ktip != NULL && ktip->is_loaded() && ktip->klass()->is_interface()) | |
2756 return kills; // Uplift to interface | |
555 | 2757 if (!empty() && ktkp != NULL && ktkp->klass()->is_loaded() && ktkp->klass()->is_interface()) |
2758 return kills; // Uplift to interface | |
0 | 2759 |
2760 return Type::TOP; // Canonical empty value | |
2761 } | |
2762 | |
2763 // If we have an interface-typed Phi or cast and we narrow to a class type, | |
2764 // the join should report back the class. However, if we have a J/L/Object | |
2765 // class-typed Phi and an interface flows in, it's possible that the meet & | |
2766 // join report an interface back out. This isn't possible but happens | |
2767 // because the type system doesn't interact well with interfaces. | |
2768 if (ftip != NULL && ktip != NULL && | |
2769 ftip->is_loaded() && ftip->klass()->is_interface() && | |
2770 ktip->is_loaded() && !ktip->klass()->is_interface()) { | |
2771 // Happens in a CTW of rt.jar, 320-341, no extra flags | |
1335
ae4032fb0a5b
6894807: No ClassCastException for HashAttributeSet constructors if run with -Xcomp
kvn
parents:
1009
diff
changeset
|
2772 assert(!ftip->klass_is_exact(), "interface could not be exact"); |
0 | 2773 return ktip->cast_to_ptr_type(ftip->ptr()); |
2774 } | |
1335
ae4032fb0a5b
6894807: No ClassCastException for HashAttributeSet constructors if run with -Xcomp
kvn
parents:
1009
diff
changeset
|
2775 // Interface klass type could be exact in opposite to interface type, |
ae4032fb0a5b
6894807: No ClassCastException for HashAttributeSet constructors if run with -Xcomp
kvn
parents:
1009
diff
changeset
|
2776 // return it here instead of incorrect Constant ptr J/L/Object (6894807). |
555 | 2777 if (ftkp != NULL && ktkp != NULL && |
2778 ftkp->is_loaded() && ftkp->klass()->is_interface() && | |
1335
ae4032fb0a5b
6894807: No ClassCastException for HashAttributeSet constructors if run with -Xcomp
kvn
parents:
1009
diff
changeset
|
2779 !ftkp->klass_is_exact() && // Keep exact interface klass |
555 | 2780 ktkp->is_loaded() && !ktkp->klass()->is_interface()) { |
2781 return ktkp->cast_to_ptr_type(ftkp->ptr()); | |
2782 } | |
0 | 2783 |
2784 return ft; | |
2785 } | |
2786 | |
2787 //------------------------------eq--------------------------------------------- | |
2788 // Structural equality check for Type representations | |
2789 bool TypeOopPtr::eq( const Type *t ) const { | |
2790 const TypeOopPtr *a = (const TypeOopPtr*)t; | |
2791 if (_klass_is_exact != a->_klass_is_exact || | |
2792 _instance_id != a->_instance_id) return false; | |
2793 ciObject* one = const_oop(); | |
2794 ciObject* two = a->const_oop(); | |
2795 if (one == NULL || two == NULL) { | |
2796 return (one == two) && TypePtr::eq(t); | |
2797 } else { | |
2798 return one->equals(two) && TypePtr::eq(t); | |
2799 } | |
2800 } | |
2801 | |
2802 //------------------------------hash------------------------------------------- | |
2803 // Type-specific hashing function. | |
2804 int TypeOopPtr::hash(void) const { | |
2805 return | |
2806 (const_oop() ? const_oop()->hash() : 0) + | |
2807 _klass_is_exact + | |
2808 _instance_id + | |
2809 TypePtr::hash(); | |
2810 } | |
2811 | |
2812 //------------------------------dump2------------------------------------------ | |
2813 #ifndef PRODUCT | |
2814 void TypeOopPtr::dump2( Dict &d, uint depth, outputStream *st ) const { | |
2815 st->print("oopptr:%s", ptr_msg[_ptr]); | |
2816 if( _klass_is_exact ) st->print(":exact"); | |
2817 if( const_oop() ) st->print(INTPTR_FORMAT, const_oop()); | |
2818 switch( _offset ) { | |
2819 case OffsetTop: st->print("+top"); break; | |
2820 case OffsetBot: st->print("+any"); break; | |
2821 case 0: break; | |
2822 default: st->print("+%d",_offset); break; | |
2823 } | |
223 | 2824 if (_instance_id == InstanceTop) |
2825 st->print(",iid=top"); | |
2826 else if (_instance_id != InstanceBot) | |
0 | 2827 st->print(",iid=%d",_instance_id); |
2828 } | |
2829 #endif | |
2830 | |
2831 //------------------------------singleton-------------------------------------- | |
2832 // TRUE if Type is a singleton type, FALSE otherwise. Singletons are simple | |
2833 // constants | |
2834 bool TypeOopPtr::singleton(void) const { | |
2835 // detune optimizer to not generate constant oop + constant offset as a constant! | |
2836 // TopPTR, Null, AnyNull, Constant are all singletons | |
2837 return (_offset == 0) && !below_centerline(_ptr); | |
2838 } | |
2839 | |
2840 //------------------------------add_offset------------------------------------- | |
306
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
2841 const TypePtr *TypeOopPtr::add_offset( intptr_t offset ) const { |
992 | 2842 return make( _ptr, xadd_offset(offset), _instance_id); |
0 | 2843 } |
2844 | |
223 | 2845 //------------------------------meet_instance_id-------------------------------- |
2846 int TypeOopPtr::meet_instance_id( int instance_id ) const { | |
2847 // Either is 'TOP' instance? Return the other instance! | |
2848 if( _instance_id == InstanceTop ) return instance_id; | |
2849 if( instance_id == InstanceTop ) return _instance_id; | |
2850 // If either is different, return 'BOTTOM' instance | |
2851 if( _instance_id != instance_id ) return InstanceBot; | |
2852 return _instance_id; | |
0 | 2853 } |
2854 | |
223 | 2855 //------------------------------dual_instance_id-------------------------------- |
2856 int TypeOopPtr::dual_instance_id( ) const { | |
2857 if( _instance_id == InstanceTop ) return InstanceBot; // Map TOP into BOTTOM | |
2858 if( _instance_id == InstanceBot ) return InstanceTop; // Map BOTTOM into TOP | |
2859 return _instance_id; // Map everything else into self | |
2860 } | |
2861 | |
2862 | |
0 | 2863 //============================================================================= |
2864 // Convenience common pre-built types. | |
2865 const TypeInstPtr *TypeInstPtr::NOTNULL; | |
2866 const TypeInstPtr *TypeInstPtr::BOTTOM; | |
2867 const TypeInstPtr *TypeInstPtr::MIRROR; | |
2868 const TypeInstPtr *TypeInstPtr::MARK; | |
2869 const TypeInstPtr *TypeInstPtr::KLASS; | |
2870 | |
2871 //------------------------------TypeInstPtr------------------------------------- | |
2872 TypeInstPtr::TypeInstPtr(PTR ptr, ciKlass* k, bool xk, ciObject* o, int off, int instance_id) | |
2873 : TypeOopPtr(InstPtr, ptr, k, xk, o, off, instance_id), _name(k->name()) { | |
2874 assert(k != NULL && | |
2875 (k->is_loaded() || o == NULL), | |
2876 "cannot have constants with non-loaded klass"); | |
2877 }; | |
2878 | |
2879 //------------------------------make------------------------------------------- | |
2880 const TypeInstPtr *TypeInstPtr::make(PTR ptr, | |
2881 ciKlass* k, | |
2882 bool xk, | |
2883 ciObject* o, | |
2884 int offset, | |
2885 int instance_id) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
2886 assert( !k->is_loaded() || k->is_instance_klass(), "Must be for instance"); |
0 | 2887 // Either const_oop() is NULL or else ptr is Constant |
2888 assert( (!o && ptr != Constant) || (o && ptr == Constant), | |
2889 "constant pointers must have a value supplied" ); | |
2890 // Ptr is never Null | |
2891 assert( ptr != Null, "NULL pointers are not typed" ); | |
2892 | |
247 | 2893 assert(instance_id <= 0 || xk || !UseExactTypes, "instances are always exactly typed"); |
0 | 2894 if (!UseExactTypes) xk = false; |
2895 if (ptr == Constant) { | |
2896 // Note: This case includes meta-object constants, such as methods. | |
2897 xk = true; | |
2898 } else if (k->is_loaded()) { | |
2899 ciInstanceKlass* ik = k->as_instance_klass(); | |
2900 if (!xk && ik->is_final()) xk = true; // no inexact final klass | |
2901 if (xk && ik->is_interface()) xk = false; // no exact interface | |
2902 } | |
2903 | |
2904 // Now hash this baby | |
2905 TypeInstPtr *result = | |
2906 (TypeInstPtr*)(new TypeInstPtr(ptr, k, xk, o ,offset, instance_id))->hashcons(); | |
2907 | |
2908 return result; | |
2909 } | |
2910 | |
10278 | 2911 /** |
2912 * Create constant type for a constant boxed value | |
2913 */ | |
2914 const Type* TypeInstPtr::get_const_boxed_value() const { | |
2915 assert(is_ptr_to_boxed_value(), "should be called only for boxed value"); | |
2916 assert((const_oop() != NULL), "should be called only for constant object"); | |
2917 ciConstant constant = const_oop()->as_instance()->field_value_by_offset(offset()); | |
2918 BasicType bt = constant.basic_type(); | |
2919 switch (bt) { | |
2920 case T_BOOLEAN: return TypeInt::make(constant.as_boolean()); | |
2921 case T_INT: return TypeInt::make(constant.as_int()); | |
2922 case T_CHAR: return TypeInt::make(constant.as_char()); | |
2923 case T_BYTE: return TypeInt::make(constant.as_byte()); | |
2924 case T_SHORT: return TypeInt::make(constant.as_short()); | |
2925 case T_FLOAT: return TypeF::make(constant.as_float()); | |
2926 case T_DOUBLE: return TypeD::make(constant.as_double()); | |
2927 case T_LONG: return TypeLong::make(constant.as_long()); | |
2928 default: break; | |
2929 } | |
2930 fatal(err_msg_res("Invalid boxed value type '%s'", type2name(bt))); | |
2931 return NULL; | |
2932 } | |
0 | 2933 |
2934 //------------------------------cast_to_ptr_type------------------------------- | |
2935 const Type *TypeInstPtr::cast_to_ptr_type(PTR ptr) const { | |
2936 if( ptr == _ptr ) return this; | |
2937 // Reconstruct _sig info here since not a problem with later lazy | |
2938 // construction, _sig will show up on demand. | |
223 | 2939 return make(ptr, klass(), klass_is_exact(), const_oop(), _offset, _instance_id); |
0 | 2940 } |
2941 | |
2942 | |
2943 //-----------------------------cast_to_exactness------------------------------- | |
2944 const Type *TypeInstPtr::cast_to_exactness(bool klass_is_exact) const { | |
2945 if( klass_is_exact == _klass_is_exact ) return this; | |
2946 if (!UseExactTypes) return this; | |
2947 if (!_klass->is_loaded()) return this; | |
2948 ciInstanceKlass* ik = _klass->as_instance_klass(); | |
2949 if( (ik->is_final() || _const_oop) ) return this; // cannot clear xk | |
2950 if( ik->is_interface() ) return this; // cannot set xk | |
2951 return make(ptr(), klass(), klass_is_exact, const_oop(), _offset, _instance_id); | |
2952 } | |
2953 | |
247 | 2954 //-----------------------------cast_to_instance_id---------------------------- |
223 | 2955 const TypeOopPtr *TypeInstPtr::cast_to_instance_id(int instance_id) const { |
2956 if( instance_id == _instance_id ) return this; | |
247 | 2957 return make(_ptr, klass(), _klass_is_exact, const_oop(), _offset, instance_id); |
0 | 2958 } |
2959 | |
2960 //------------------------------xmeet_unloaded--------------------------------- | |
2961 // Compute the MEET of two InstPtrs when at least one is unloaded. | |
2962 // Assume classes are different since called after check for same name/class-loader | |
2963 const TypeInstPtr *TypeInstPtr::xmeet_unloaded(const TypeInstPtr *tinst) const { | |
2964 int off = meet_offset(tinst->offset()); | |
2965 PTR ptr = meet_ptr(tinst->ptr()); | |
992 | 2966 int instance_id = meet_instance_id(tinst->instance_id()); |
0 | 2967 |
2968 const TypeInstPtr *loaded = is_loaded() ? this : tinst; | |
2969 const TypeInstPtr *unloaded = is_loaded() ? tinst : this; | |
2970 if( loaded->klass()->equals(ciEnv::current()->Object_klass()) ) { | |
2971 // | |
2972 // Meet unloaded class with java/lang/Object | |
2973 // | |
2974 // Meet | |
2975 // | Unloaded Class | |
2976 // Object | TOP | AnyNull | Constant | NotNull | BOTTOM | | |
2977 // =================================================================== | |
2978 // TOP | ..........................Unloaded......................| | |
2979 // AnyNull | U-AN |................Unloaded......................| | |
2980 // Constant | ... O-NN .................................. | O-BOT | | |
2981 // NotNull | ... O-NN .................................. | O-BOT | | |
2982 // BOTTOM | ........................Object-BOTTOM ..................| | |
2983 // | |
2984 assert(loaded->ptr() != TypePtr::Null, "insanity check"); | |
2985 // | |
2986 if( loaded->ptr() == TypePtr::TopPTR ) { return unloaded; } | |
992 | 2987 else if (loaded->ptr() == TypePtr::AnyNull) { return TypeInstPtr::make( ptr, unloaded->klass(), false, NULL, off, instance_id ); } |
0 | 2988 else if (loaded->ptr() == TypePtr::BotPTR ) { return TypeInstPtr::BOTTOM; } |
2989 else if (loaded->ptr() == TypePtr::Constant || loaded->ptr() == TypePtr::NotNull) { | |
2990 if (unloaded->ptr() == TypePtr::BotPTR ) { return TypeInstPtr::BOTTOM; } | |
2991 else { return TypeInstPtr::NOTNULL; } | |
2992 } | |
2993 else if( unloaded->ptr() == TypePtr::TopPTR ) { return unloaded; } | |
2994 | |
2995 return unloaded->cast_to_ptr_type(TypePtr::AnyNull)->is_instptr(); | |
2996 } | |
2997 | |
2998 // Both are unloaded, not the same class, not Object | |
2999 // Or meet unloaded with a different loaded class, not java/lang/Object | |
3000 if( ptr != TypePtr::BotPTR ) { | |
3001 return TypeInstPtr::NOTNULL; | |
3002 } | |
3003 return TypeInstPtr::BOTTOM; | |
3004 } | |
3005 | |
3006 | |
3007 //------------------------------meet------------------------------------------- | |
3008 // Compute the MEET of two types. It returns a new Type object. | |
3009 const Type *TypeInstPtr::xmeet( const Type *t ) const { | |
3010 // Perform a fast test for common case; meeting the same types together. | |
3011 if( this == t ) return this; // Meeting same type-rep? | |
3012 | |
3013 // Current "this->_base" is Pointer | |
3014 switch (t->base()) { // switch on original type | |
3015 | |
3016 case Int: // Mixing ints & oops happens when javac | |
3017 case Long: // reuses local variables | |
3018 case FloatTop: | |
3019 case FloatCon: | |
3020 case FloatBot: | |
3021 case DoubleTop: | |
3022 case DoubleCon: | |
3023 case DoubleBot: | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3024 case NarrowOop: |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3025 case NarrowKlass: |
0 | 3026 case Bottom: // Ye Olde Default |
3027 return Type::BOTTOM; | |
3028 case Top: | |
3029 return this; | |
3030 | |
3031 default: // All else is a mistake | |
3032 typerr(t); | |
3033 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3034 case MetadataPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3035 case KlassPtr: |
0 | 3036 case RawPtr: return TypePtr::BOTTOM; |
3037 | |
3038 case AryPtr: { // All arrays inherit from Object class | |
3039 const TypeAryPtr *tp = t->is_aryptr(); | |
3040 int offset = meet_offset(tp->offset()); | |
3041 PTR ptr = meet_ptr(tp->ptr()); | |
223 | 3042 int instance_id = meet_instance_id(tp->instance_id()); |
0 | 3043 switch (ptr) { |
3044 case TopPTR: | |
3045 case AnyNull: // Fall 'down' to dual of object klass | |
3046 if (klass()->equals(ciEnv::current()->Object_klass())) { | |
223 | 3047 return TypeAryPtr::make(ptr, tp->ary(), tp->klass(), tp->klass_is_exact(), offset, instance_id); |
0 | 3048 } else { |
3049 // cannot subclass, so the meet has to fall badly below the centerline | |
3050 ptr = NotNull; | |
223 | 3051 instance_id = InstanceBot; |
3052 return TypeInstPtr::make( ptr, ciEnv::current()->Object_klass(), false, NULL, offset, instance_id); | |
0 | 3053 } |
3054 case Constant: | |
3055 case NotNull: | |
3056 case BotPTR: // Fall down to object klass | |
3057 // LCA is object_klass, but if we subclass from the top we can do better | |
3058 if( above_centerline(_ptr) ) { // if( _ptr == TopPTR || _ptr == AnyNull ) | |
3059 // If 'this' (InstPtr) is above the centerline and it is Object class | |
605 | 3060 // then we can subclass in the Java class hierarchy. |
0 | 3061 if (klass()->equals(ciEnv::current()->Object_klass())) { |
3062 // that is, tp's array type is a subtype of my klass | |
1279
2432acbee618
6930035: C2 type system incorrectly handles case j.l.Object->meet(constant AryPtr)
kvn
parents:
1137
diff
changeset
|
3063 return TypeAryPtr::make(ptr, (ptr == Constant ? tp->const_oop() : NULL), |
2432acbee618
6930035: C2 type system incorrectly handles case j.l.Object->meet(constant AryPtr)
kvn
parents:
1137
diff
changeset
|
3064 tp->ary(), tp->klass(), tp->klass_is_exact(), offset, instance_id); |
0 | 3065 } |
3066 } | |
3067 // The other case cannot happen, since I cannot be a subtype of an array. | |
3068 // The meet falls down to Object class below centerline. | |
3069 if( ptr == Constant ) | |
3070 ptr = NotNull; | |
223 | 3071 instance_id = InstanceBot; |
3072 return make( ptr, ciEnv::current()->Object_klass(), false, NULL, offset, instance_id ); | |
0 | 3073 default: typerr(t); |
3074 } | |
3075 } | |
3076 | |
3077 case OopPtr: { // Meeting to OopPtrs | |
3078 // Found a OopPtr type vs self-InstPtr type | |
958
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
827
diff
changeset
|
3079 const TypeOopPtr *tp = t->is_oopptr(); |
0 | 3080 int offset = meet_offset(tp->offset()); |
3081 PTR ptr = meet_ptr(tp->ptr()); | |
3082 switch (tp->ptr()) { | |
3083 case TopPTR: | |
223 | 3084 case AnyNull: { |
3085 int instance_id = meet_instance_id(InstanceTop); | |
0 | 3086 return make(ptr, klass(), klass_is_exact(), |
223 | 3087 (ptr == Constant ? const_oop() : NULL), offset, instance_id); |
3088 } | |
0 | 3089 case NotNull: |
958
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
827
diff
changeset
|
3090 case BotPTR: { |
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
827
diff
changeset
|
3091 int instance_id = meet_instance_id(tp->instance_id()); |
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
827
diff
changeset
|
3092 return TypeOopPtr::make(ptr, offset, instance_id); |
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
827
diff
changeset
|
3093 } |
0 | 3094 default: typerr(t); |
3095 } | |
3096 } | |
3097 | |
3098 case AnyPtr: { // Meeting to AnyPtrs | |
3099 // Found an AnyPtr type vs self-InstPtr type | |
3100 const TypePtr *tp = t->is_ptr(); | |
3101 int offset = meet_offset(tp->offset()); | |
3102 PTR ptr = meet_ptr(tp->ptr()); | |
3103 switch (tp->ptr()) { | |
3104 case Null: | |
3105 if( ptr == Null ) return TypePtr::make( AnyPtr, ptr, offset ); | |
223 | 3106 // else fall through to AnyNull |
0 | 3107 case TopPTR: |
223 | 3108 case AnyNull: { |
3109 int instance_id = meet_instance_id(InstanceTop); | |
0 | 3110 return make( ptr, klass(), klass_is_exact(), |
223 | 3111 (ptr == Constant ? const_oop() : NULL), offset, instance_id); |
3112 } | |
0 | 3113 case NotNull: |
3114 case BotPTR: | |
3115 return TypePtr::make( AnyPtr, ptr, offset ); | |
3116 default: typerr(t); | |
3117 } | |
3118 } | |
3119 | |
3120 /* | |
3121 A-top } | |
3122 / | \ } Tops | |
3123 B-top A-any C-top } | |
3124 | / | \ | } Any-nulls | |
3125 B-any | C-any } | |
3126 | | | | |
3127 B-con A-con C-con } constants; not comparable across classes | |
3128 | | | | |
3129 B-not | C-not } | |
3130 | \ | / | } not-nulls | |
3131 B-bot A-not C-bot } | |
3132 \ | / } Bottoms | |
3133 A-bot } | |
3134 */ | |
3135 | |
3136 case InstPtr: { // Meeting 2 Oops? | |
3137 // Found an InstPtr sub-type vs self-InstPtr type | |
3138 const TypeInstPtr *tinst = t->is_instptr(); | |
3139 int off = meet_offset( tinst->offset() ); | |
3140 PTR ptr = meet_ptr( tinst->ptr() ); | |
223 | 3141 int instance_id = meet_instance_id(tinst->instance_id()); |
0 | 3142 |
3143 // Check for easy case; klasses are equal (and perhaps not loaded!) | |
3144 // If we have constants, then we created oops so classes are loaded | |
3145 // and we can handle the constants further down. This case handles | |
3146 // both-not-loaded or both-loaded classes | |
3147 if (ptr != Constant && klass()->equals(tinst->klass()) && klass_is_exact() == tinst->klass_is_exact()) { | |
3148 return make( ptr, klass(), klass_is_exact(), NULL, off, instance_id ); | |
3149 } | |
3150 | |
3151 // Classes require inspection in the Java klass hierarchy. Must be loaded. | |
3152 ciKlass* tinst_klass = tinst->klass(); | |
3153 ciKlass* this_klass = this->klass(); | |
3154 bool tinst_xk = tinst->klass_is_exact(); | |
3155 bool this_xk = this->klass_is_exact(); | |
3156 if (!tinst_klass->is_loaded() || !this_klass->is_loaded() ) { | |
3157 // One of these classes has not been loaded | |
3158 const TypeInstPtr *unloaded_meet = xmeet_unloaded(tinst); | |
3159 #ifndef PRODUCT | |
3160 if( PrintOpto && Verbose ) { | |
3161 tty->print("meet of unloaded classes resulted in: "); unloaded_meet->dump(); tty->cr(); | |
3162 tty->print(" this == "); this->dump(); tty->cr(); | |
3163 tty->print(" tinst == "); tinst->dump(); tty->cr(); | |
3164 } | |
3165 #endif | |
3166 return unloaded_meet; | |
3167 } | |
3168 | |
3169 // Handle mixing oops and interfaces first. | |
3170 if( this_klass->is_interface() && !tinst_klass->is_interface() ) { | |
3171 ciKlass *tmp = tinst_klass; // Swap interface around | |
3172 tinst_klass = this_klass; | |
3173 this_klass = tmp; | |
3174 bool tmp2 = tinst_xk; | |
3175 tinst_xk = this_xk; | |
3176 this_xk = tmp2; | |
3177 } | |
3178 if (tinst_klass->is_interface() && | |
3179 !(this_klass->is_interface() || | |
3180 // Treat java/lang/Object as an honorary interface, | |
3181 // because we need a bottom for the interface hierarchy. | |
3182 this_klass == ciEnv::current()->Object_klass())) { | |
3183 // Oop meets interface! | |
3184 | |
3185 // See if the oop subtypes (implements) interface. | |
3186 ciKlass *k; | |
3187 bool xk; | |
3188 if( this_klass->is_subtype_of( tinst_klass ) ) { | |
3189 // Oop indeed subtypes. Now keep oop or interface depending | |
3190 // on whether we are both above the centerline or either is | |
3191 // below the centerline. If we are on the centerline | |
3192 // (e.g., Constant vs. AnyNull interface), use the constant. | |
3193 k = below_centerline(ptr) ? tinst_klass : this_klass; | |
3194 // If we are keeping this_klass, keep its exactness too. | |
3195 xk = below_centerline(ptr) ? tinst_xk : this_xk; | |
3196 } else { // Does not implement, fall to Object | |
3197 // Oop does not implement interface, so mixing falls to Object | |
3198 // just like the verifier does (if both are above the | |
3199 // centerline fall to interface) | |
3200 k = above_centerline(ptr) ? tinst_klass : ciEnv::current()->Object_klass(); | |
3201 xk = above_centerline(ptr) ? tinst_xk : false; | |
3202 // Watch out for Constant vs. AnyNull interface. | |
3203 if (ptr == Constant) ptr = NotNull; // forget it was a constant | |
247 | 3204 instance_id = InstanceBot; |
0 | 3205 } |
3206 ciObject* o = NULL; // the Constant value, if any | |
3207 if (ptr == Constant) { | |
3208 // Find out which constant. | |
3209 o = (this_klass == klass()) ? const_oop() : tinst->const_oop(); | |
3210 } | |
223 | 3211 return make( ptr, k, xk, o, off, instance_id ); |
0 | 3212 } |
3213 | |
3214 // Either oop vs oop or interface vs interface or interface vs Object | |
3215 | |
3216 // !!! Here's how the symmetry requirement breaks down into invariants: | |
3217 // If we split one up & one down AND they subtype, take the down man. | |
3218 // If we split one up & one down AND they do NOT subtype, "fall hard". | |
3219 // If both are up and they subtype, take the subtype class. | |
3220 // If both are up and they do NOT subtype, "fall hard". | |
3221 // If both are down and they subtype, take the supertype class. | |
3222 // If both are down and they do NOT subtype, "fall hard". | |
3223 // Constants treated as down. | |
3224 | |
3225 // Now, reorder the above list; observe that both-down+subtype is also | |
3226 // "fall hard"; "fall hard" becomes the default case: | |
3227 // If we split one up & one down AND they subtype, take the down man. | |
3228 // If both are up and they subtype, take the subtype class. | |
3229 | |
3230 // If both are down and they subtype, "fall hard". | |
3231 // If both are down and they do NOT subtype, "fall hard". | |
3232 // If both are up and they do NOT subtype, "fall hard". | |
3233 // If we split one up & one down AND they do NOT subtype, "fall hard". | |
3234 | |
3235 // If a proper subtype is exact, and we return it, we return it exactly. | |
3236 // If a proper supertype is exact, there can be no subtyping relationship! | |
3237 // If both types are equal to the subtype, exactness is and-ed below the | |
3238 // centerline and or-ed above it. (N.B. Constants are always exact.) | |
3239 | |
3240 // Check for subtyping: | |
3241 ciKlass *subtype = NULL; | |
3242 bool subtype_exact = false; | |
3243 if( tinst_klass->equals(this_klass) ) { | |
3244 subtype = this_klass; | |
3245 subtype_exact = below_centerline(ptr) ? (this_xk & tinst_xk) : (this_xk | tinst_xk); | |
3246 } else if( !tinst_xk && this_klass->is_subtype_of( tinst_klass ) ) { | |
3247 subtype = this_klass; // Pick subtyping class | |
3248 subtype_exact = this_xk; | |
3249 } else if( !this_xk && tinst_klass->is_subtype_of( this_klass ) ) { | |
3250 subtype = tinst_klass; // Pick subtyping class | |
3251 subtype_exact = tinst_xk; | |
3252 } | |
3253 | |
3254 if( subtype ) { | |
3255 if( above_centerline(ptr) ) { // both are up? | |
3256 this_klass = tinst_klass = subtype; | |
3257 this_xk = tinst_xk = subtype_exact; | |
3258 } else if( above_centerline(this ->_ptr) && !above_centerline(tinst->_ptr) ) { | |
3259 this_klass = tinst_klass; // tinst is down; keep down man | |
3260 this_xk = tinst_xk; | |
3261 } else if( above_centerline(tinst->_ptr) && !above_centerline(this ->_ptr) ) { | |
3262 tinst_klass = this_klass; // this is down; keep down man | |
3263 tinst_xk = this_xk; | |
3264 } else { | |
3265 this_xk = subtype_exact; // either they are equal, or we'll do an LCA | |
3266 } | |
3267 } | |
3268 | |
3269 // Check for classes now being equal | |
3270 if (tinst_klass->equals(this_klass)) { | |
3271 // If the klasses are equal, the constants may still differ. Fall to | |
3272 // NotNull if they do (neither constant is NULL; that is a special case | |
3273 // handled elsewhere). | |
3274 ciObject* o = NULL; // Assume not constant when done | |
3275 ciObject* this_oop = const_oop(); | |
3276 ciObject* tinst_oop = tinst->const_oop(); | |
3277 if( ptr == Constant ) { | |
3278 if (this_oop != NULL && tinst_oop != NULL && | |
3279 this_oop->equals(tinst_oop) ) | |
3280 o = this_oop; | |
3281 else if (above_centerline(this ->_ptr)) | |
3282 o = tinst_oop; | |
3283 else if (above_centerline(tinst ->_ptr)) | |
3284 o = this_oop; | |
3285 else | |
3286 ptr = NotNull; | |
3287 } | |
3288 return make( ptr, this_klass, this_xk, o, off, instance_id ); | |
3289 } // Else classes are not equal | |
3290 | |
3291 // Since klasses are different, we require a LCA in the Java | |
3292 // class hierarchy - which means we have to fall to at least NotNull. | |
3293 if( ptr == TopPTR || ptr == AnyNull || ptr == Constant ) | |
3294 ptr = NotNull; | |
247 | 3295 instance_id = InstanceBot; |
0 | 3296 |
3297 // Now we find the LCA of Java classes | |
3298 ciKlass* k = this_klass->least_common_ancestor(tinst_klass); | |
223 | 3299 return make( ptr, k, false, NULL, off, instance_id ); |
0 | 3300 } // End of case InstPtr |
3301 | |
3302 } // End of switch | |
3303 return this; // Return the double constant | |
3304 } | |
3305 | |
3306 | |
3307 //------------------------java_mirror_type-------------------------------------- | |
3308 ciType* TypeInstPtr::java_mirror_type() const { | |
3309 // must be a singleton type | |
3310 if( const_oop() == NULL ) return NULL; | |
3311 | |
3312 // must be of type java.lang.Class | |
3313 if( klass() != ciEnv::current()->Class_klass() ) return NULL; | |
3314 | |
3315 return const_oop()->as_instance()->java_mirror_type(); | |
3316 } | |
3317 | |
3318 | |
3319 //------------------------------xdual------------------------------------------ | |
3320 // Dual: do NOT dual on klasses. This means I do NOT understand the Java | |
605 | 3321 // inheritance mechanism. |
0 | 3322 const Type *TypeInstPtr::xdual() const { |
223 | 3323 return new TypeInstPtr( dual_ptr(), klass(), klass_is_exact(), const_oop(), dual_offset(), dual_instance_id() ); |
0 | 3324 } |
3325 | |
3326 //------------------------------eq--------------------------------------------- | |
3327 // Structural equality check for Type representations | |
3328 bool TypeInstPtr::eq( const Type *t ) const { | |
3329 const TypeInstPtr *p = t->is_instptr(); | |
3330 return | |
3331 klass()->equals(p->klass()) && | |
3332 TypeOopPtr::eq(p); // Check sub-type stuff | |
3333 } | |
3334 | |
3335 //------------------------------hash------------------------------------------- | |
3336 // Type-specific hashing function. | |
3337 int TypeInstPtr::hash(void) const { | |
3338 int hash = klass()->hash() + TypeOopPtr::hash(); | |
3339 return hash; | |
3340 } | |
3341 | |
3342 //------------------------------dump2------------------------------------------ | |
3343 // Dump oop Type | |
3344 #ifndef PRODUCT | |
3345 void TypeInstPtr::dump2( Dict &d, uint depth, outputStream *st ) const { | |
3346 // Print the name of the klass. | |
3347 klass()->print_name_on(st); | |
3348 | |
3349 switch( _ptr ) { | |
3350 case Constant: | |
3351 // TO DO: Make CI print the hex address of the underlying oop. | |
3352 if (WizardMode || Verbose) { | |
3353 const_oop()->print_oop(st); | |
3354 } | |
3355 case BotPTR: | |
3356 if (!WizardMode && !Verbose) { | |
3357 if( _klass_is_exact ) st->print(":exact"); | |
3358 break; | |
3359 } | |
3360 case TopPTR: | |
3361 case AnyNull: | |
3362 case NotNull: | |
3363 st->print(":%s", ptr_msg[_ptr]); | |
3364 if( _klass_is_exact ) st->print(":exact"); | |
3365 break; | |
3366 } | |
3367 | |
3368 if( _offset ) { // Dump offset, if any | |
3369 if( _offset == OffsetBot ) st->print("+any"); | |
3370 else if( _offset == OffsetTop ) st->print("+unknown"); | |
3371 else st->print("+%d", _offset); | |
3372 } | |
3373 | |
3374 st->print(" *"); | |
223 | 3375 if (_instance_id == InstanceTop) |
3376 st->print(",iid=top"); | |
3377 else if (_instance_id != InstanceBot) | |
0 | 3378 st->print(",iid=%d",_instance_id); |
3379 } | |
3380 #endif | |
3381 | |
3382 //------------------------------add_offset------------------------------------- | |
306
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
3383 const TypePtr *TypeInstPtr::add_offset( intptr_t offset ) const { |
0 | 3384 return make( _ptr, klass(), klass_is_exact(), const_oop(), xadd_offset(offset), _instance_id ); |
3385 } | |
3386 | |
3387 //============================================================================= | |
3388 // Convenience common pre-built types. | |
3389 const TypeAryPtr *TypeAryPtr::RANGE; | |
3390 const TypeAryPtr *TypeAryPtr::OOPS; | |
163 | 3391 const TypeAryPtr *TypeAryPtr::NARROWOOPS; |
0 | 3392 const TypeAryPtr *TypeAryPtr::BYTES; |
3393 const TypeAryPtr *TypeAryPtr::SHORTS; | |
3394 const TypeAryPtr *TypeAryPtr::CHARS; | |
3395 const TypeAryPtr *TypeAryPtr::INTS; | |
3396 const TypeAryPtr *TypeAryPtr::LONGS; | |
3397 const TypeAryPtr *TypeAryPtr::FLOATS; | |
3398 const TypeAryPtr *TypeAryPtr::DOUBLES; | |
3399 | |
3400 //------------------------------make------------------------------------------- | |
3401 const TypeAryPtr *TypeAryPtr::make( PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id ) { | |
3402 assert(!(k == NULL && ary->_elem->isa_int()), | |
3403 "integral arrays must be pre-equipped with a class"); | |
3404 if (!xk) xk = ary->ary_must_be_exact(); | |
247 | 3405 assert(instance_id <= 0 || xk || !UseExactTypes, "instances are always exactly typed"); |
0 | 3406 if (!UseExactTypes) xk = (ptr == Constant); |
10278 | 3407 return (TypeAryPtr*)(new TypeAryPtr(ptr, NULL, ary, k, xk, offset, instance_id, false))->hashcons(); |
0 | 3408 } |
3409 | |
3410 //------------------------------make------------------------------------------- | |
10278 | 3411 const TypeAryPtr *TypeAryPtr::make( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id, bool is_autobox_cache) { |
0 | 3412 assert(!(k == NULL && ary->_elem->isa_int()), |
3413 "integral arrays must be pre-equipped with a class"); | |
3414 assert( (ptr==Constant && o) || (ptr!=Constant && !o), "" ); | |
3415 if (!xk) xk = (o != NULL) || ary->ary_must_be_exact(); | |
247 | 3416 assert(instance_id <= 0 || xk || !UseExactTypes, "instances are always exactly typed"); |
0 | 3417 if (!UseExactTypes) xk = (ptr == Constant); |
10278 | 3418 return (TypeAryPtr*)(new TypeAryPtr(ptr, o, ary, k, xk, offset, instance_id, is_autobox_cache))->hashcons(); |
0 | 3419 } |
3420 | |
3421 //------------------------------cast_to_ptr_type------------------------------- | |
3422 const Type *TypeAryPtr::cast_to_ptr_type(PTR ptr) const { | |
3423 if( ptr == _ptr ) return this; | |
223 | 3424 return make(ptr, const_oop(), _ary, klass(), klass_is_exact(), _offset, _instance_id); |
0 | 3425 } |
3426 | |
3427 | |
3428 //-----------------------------cast_to_exactness------------------------------- | |
3429 const Type *TypeAryPtr::cast_to_exactness(bool klass_is_exact) const { | |
3430 if( klass_is_exact == _klass_is_exact ) return this; | |
3431 if (!UseExactTypes) return this; | |
3432 if (_ary->ary_must_be_exact()) return this; // cannot clear xk | |
3433 return make(ptr(), const_oop(), _ary, klass(), klass_is_exact, _offset, _instance_id); | |
3434 } | |
3435 | |
247 | 3436 //-----------------------------cast_to_instance_id---------------------------- |
223 | 3437 const TypeOopPtr *TypeAryPtr::cast_to_instance_id(int instance_id) const { |
3438 if( instance_id == _instance_id ) return this; | |
247 | 3439 return make(_ptr, const_oop(), _ary, klass(), _klass_is_exact, _offset, instance_id); |
0 | 3440 } |
3441 | |
3442 //-----------------------------narrow_size_type------------------------------- | |
3443 // Local cache for arrayOopDesc::max_array_length(etype), | |
3444 // which is kind of slow (and cached elsewhere by other users). | |
3445 static jint max_array_length_cache[T_CONFLICT+1]; | |
3446 static jint max_array_length(BasicType etype) { | |
3447 jint& cache = max_array_length_cache[etype]; | |
3448 jint res = cache; | |
3449 if (res == 0) { | |
3450 switch (etype) { | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3451 case T_NARROWOOP: |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3452 etype = T_OBJECT; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3453 break; |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3454 case T_NARROWKLASS: |
0 | 3455 case T_CONFLICT: |
3456 case T_ILLEGAL: | |
3457 case T_VOID: | |
3458 etype = T_BYTE; // will produce conservatively high value | |
3459 } | |
3460 cache = res = arrayOopDesc::max_array_length(etype); | |
3461 } | |
3462 return res; | |
3463 } | |
3464 | |
3465 // Narrow the given size type to the index range for the given array base type. | |
3466 // Return NULL if the resulting int type becomes empty. | |
366
8261ee795323
6711100: 64bit fastdebug server vm crashes with assert(_base == Int,"Not an Int")
rasbold
parents:
306
diff
changeset
|
3467 const TypeInt* TypeAryPtr::narrow_size_type(const TypeInt* size) const { |
0 | 3468 jint hi = size->_hi; |
3469 jint lo = size->_lo; | |
3470 jint min_lo = 0; | |
366
8261ee795323
6711100: 64bit fastdebug server vm crashes with assert(_base == Int,"Not an Int")
rasbold
parents:
306
diff
changeset
|
3471 jint max_hi = max_array_length(elem()->basic_type()); |
0 | 3472 //if (index_not_size) --max_hi; // type of a valid array index, FTR |
3473 bool chg = false; | |
10278 | 3474 if (lo < min_lo) { |
3475 lo = min_lo; | |
3476 if (size->is_con()) { | |
3477 hi = lo; | |
3478 } | |
3479 chg = true; | |
3480 } | |
3481 if (hi > max_hi) { | |
3482 hi = max_hi; | |
3483 if (size->is_con()) { | |
3484 lo = hi; | |
3485 } | |
3486 chg = true; | |
3487 } | |
605 | 3488 // Negative length arrays will produce weird intermediate dead fast-path code |
0 | 3489 if (lo > hi) |
366
8261ee795323
6711100: 64bit fastdebug server vm crashes with assert(_base == Int,"Not an Int")
rasbold
parents:
306
diff
changeset
|
3490 return TypeInt::ZERO; |
0 | 3491 if (!chg) |
3492 return size; | |
3493 return TypeInt::make(lo, hi, Type::WidenMin); | |
3494 } | |
3495 | |
3496 //-------------------------------cast_to_size---------------------------------- | |
3497 const TypeAryPtr* TypeAryPtr::cast_to_size(const TypeInt* new_size) const { | |
3498 assert(new_size != NULL, ""); | |
366
8261ee795323
6711100: 64bit fastdebug server vm crashes with assert(_base == Int,"Not an Int")
rasbold
parents:
306
diff
changeset
|
3499 new_size = narrow_size_type(new_size); |
0 | 3500 if (new_size == size()) return this; |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3501 const TypeAry* new_ary = TypeAry::make(elem(), new_size, is_stable()); |
223 | 3502 return make(ptr(), const_oop(), new_ary, klass(), klass_is_exact(), _offset, _instance_id); |
0 | 3503 } |
3504 | |
3505 | |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3506 //------------------------------cast_to_stable--------------------------------- |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3507 const TypeAryPtr* TypeAryPtr::cast_to_stable(bool stable, int stable_dimension) const { |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3508 if (stable_dimension <= 0 || (stable_dimension == 1 && stable == this->is_stable())) |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3509 return this; |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3510 |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3511 const Type* elem = this->elem(); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3512 const TypePtr* elem_ptr = elem->make_ptr(); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3513 |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3514 if (stable_dimension > 1 && elem_ptr != NULL && elem_ptr->isa_aryptr()) { |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3515 // If this is widened from a narrow oop, TypeAry::make will re-narrow it. |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3516 elem = elem_ptr = elem_ptr->is_aryptr()->cast_to_stable(stable, stable_dimension - 1); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3517 } |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3518 |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3519 const TypeAry* new_ary = TypeAry::make(elem, size(), stable); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3520 |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3521 return make(ptr(), const_oop(), new_ary, klass(), klass_is_exact(), _offset, _instance_id); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3522 } |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3523 |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3524 //-----------------------------stable_dimension-------------------------------- |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3525 int TypeAryPtr::stable_dimension() const { |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3526 if (!is_stable()) return 0; |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3527 int dim = 1; |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3528 const TypePtr* elem_ptr = elem()->make_ptr(); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3529 if (elem_ptr != NULL && elem_ptr->isa_aryptr()) |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3530 dim += elem_ptr->is_aryptr()->stable_dimension(); |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3531 return dim; |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3532 } |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3533 |
0 | 3534 //------------------------------eq--------------------------------------------- |
3535 // Structural equality check for Type representations | |
3536 bool TypeAryPtr::eq( const Type *t ) const { | |
3537 const TypeAryPtr *p = t->is_aryptr(); | |
3538 return | |
3539 _ary == p->_ary && // Check array | |
3540 TypeOopPtr::eq(p); // Check sub-parts | |
3541 } | |
3542 | |
3543 //------------------------------hash------------------------------------------- | |
3544 // Type-specific hashing function. | |
3545 int TypeAryPtr::hash(void) const { | |
3546 return (intptr_t)_ary + TypeOopPtr::hash(); | |
3547 } | |
3548 | |
3549 //------------------------------meet------------------------------------------- | |
3550 // Compute the MEET of two types. It returns a new Type object. | |
3551 const Type *TypeAryPtr::xmeet( const Type *t ) const { | |
3552 // Perform a fast test for common case; meeting the same types together. | |
3553 if( this == t ) return this; // Meeting same type-rep? | |
3554 // Current "this->_base" is Pointer | |
3555 switch (t->base()) { // switch on original type | |
3556 | |
3557 // Mixing ints & oops happens when javac reuses local variables | |
3558 case Int: | |
3559 case Long: | |
3560 case FloatTop: | |
3561 case FloatCon: | |
3562 case FloatBot: | |
3563 case DoubleTop: | |
3564 case DoubleCon: | |
3565 case DoubleBot: | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3566 case NarrowOop: |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3567 case NarrowKlass: |
0 | 3568 case Bottom: // Ye Olde Default |
3569 return Type::BOTTOM; | |
3570 case Top: | |
3571 return this; | |
3572 | |
3573 default: // All else is a mistake | |
3574 typerr(t); | |
3575 | |
3576 case OopPtr: { // Meeting to OopPtrs | |
3577 // Found a OopPtr type vs self-AryPtr type | |
958
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
827
diff
changeset
|
3578 const TypeOopPtr *tp = t->is_oopptr(); |
0 | 3579 int offset = meet_offset(tp->offset()); |
3580 PTR ptr = meet_ptr(tp->ptr()); | |
3581 switch (tp->ptr()) { | |
3582 case TopPTR: | |
223 | 3583 case AnyNull: { |
3584 int instance_id = meet_instance_id(InstanceTop); | |
3585 return make(ptr, (ptr == Constant ? const_oop() : NULL), | |
3586 _ary, _klass, _klass_is_exact, offset, instance_id); | |
3587 } | |
0 | 3588 case BotPTR: |
958
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
827
diff
changeset
|
3589 case NotNull: { |
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
827
diff
changeset
|
3590 int instance_id = meet_instance_id(tp->instance_id()); |
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
827
diff
changeset
|
3591 return TypeOopPtr::make(ptr, offset, instance_id); |
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
827
diff
changeset
|
3592 } |
0 | 3593 default: ShouldNotReachHere(); |
3594 } | |
3595 } | |
3596 | |
3597 case AnyPtr: { // Meeting two AnyPtrs | |
3598 // Found an AnyPtr type vs self-AryPtr type | |
3599 const TypePtr *tp = t->is_ptr(); | |
3600 int offset = meet_offset(tp->offset()); | |
3601 PTR ptr = meet_ptr(tp->ptr()); | |
3602 switch (tp->ptr()) { | |
3603 case TopPTR: | |
3604 return this; | |
3605 case BotPTR: | |
3606 case NotNull: | |
3607 return TypePtr::make(AnyPtr, ptr, offset); | |
3608 case Null: | |
3609 if( ptr == Null ) return TypePtr::make(AnyPtr, ptr, offset); | |
223 | 3610 // else fall through to AnyNull |
3611 case AnyNull: { | |
3612 int instance_id = meet_instance_id(InstanceTop); | |
3613 return make( ptr, (ptr == Constant ? const_oop() : NULL), | |
3614 _ary, _klass, _klass_is_exact, offset, instance_id); | |
3615 } | |
0 | 3616 default: ShouldNotReachHere(); |
3617 } | |
3618 } | |
3619 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3620 case MetadataPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3621 case KlassPtr: |
0 | 3622 case RawPtr: return TypePtr::BOTTOM; |
3623 | |
3624 case AryPtr: { // Meeting 2 references? | |
3625 const TypeAryPtr *tap = t->is_aryptr(); | |
3626 int off = meet_offset(tap->offset()); | |
3627 const TypeAry *tary = _ary->meet(tap->_ary)->is_ary(); | |
3628 PTR ptr = meet_ptr(tap->ptr()); | |
223 | 3629 int instance_id = meet_instance_id(tap->instance_id()); |
0 | 3630 ciKlass* lazy_klass = NULL; |
3631 if (tary->_elem->isa_int()) { | |
3632 // Integral array element types have irrelevant lattice relations. | |
3633 // It is the klass that determines array layout, not the element type. | |
3634 if (_klass == NULL) | |
3635 lazy_klass = tap->_klass; | |
3636 else if (tap->_klass == NULL || tap->_klass == _klass) { | |
3637 lazy_klass = _klass; | |
3638 } else { | |
3639 // Something like byte[int+] meets char[int+]. | |
3640 // This must fall to bottom, not (int[-128..65535])[int+]. | |
247 | 3641 instance_id = InstanceBot; |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3642 tary = TypeAry::make(Type::BOTTOM, tary->_size, tary->_stable); |
0 | 3643 } |
2351 | 3644 } else // Non integral arrays. |
3645 // Must fall to bottom if exact klasses in upper lattice | |
3646 // are not equal or super klass is exact. | |
3647 if ( above_centerline(ptr) && klass() != tap->klass() && | |
3648 // meet with top[] and bottom[] are processed further down: | |
3649 tap ->_klass != NULL && this->_klass != NULL && | |
3650 // both are exact and not equal: | |
3651 ((tap ->_klass_is_exact && this->_klass_is_exact) || | |
3652 // 'tap' is exact and super or unrelated: | |
3653 (tap ->_klass_is_exact && !tap->klass()->is_subtype_of(klass())) || | |
3654 // 'this' is exact and super or unrelated: | |
3655 (this->_klass_is_exact && !klass()->is_subtype_of(tap->klass())))) { | |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
10278
diff
changeset
|
3656 tary = TypeAry::make(Type::BOTTOM, tary->_size, tary->_stable); |
2351 | 3657 return make( NotNull, NULL, tary, lazy_klass, false, off, InstanceBot ); |
0 | 3658 } |
2351 | 3659 |
1765
114e6b93e9e1
6980978: assert(mt == t->xmeet(this)) failed: meet not commutative
kvn
parents:
1761
diff
changeset
|
3660 bool xk = false; |
0 | 3661 switch (tap->ptr()) { |
3662 case AnyNull: | |
3663 case TopPTR: | |
3664 // Compute new klass on demand, do not use tap->_klass | |
3665 xk = (tap->_klass_is_exact | this->_klass_is_exact); | |
223 | 3666 return make( ptr, const_oop(), tary, lazy_klass, xk, off, instance_id ); |
0 | 3667 case Constant: { |
3668 ciObject* o = const_oop(); | |
3669 if( _ptr == Constant ) { | |
3670 if( tap->const_oop() != NULL && !o->equals(tap->const_oop()) ) { | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
958
diff
changeset
|
3671 xk = (klass() == tap->klass()); |
0 | 3672 ptr = NotNull; |
3673 o = NULL; | |
247 | 3674 instance_id = InstanceBot; |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
958
diff
changeset
|
3675 } else { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
958
diff
changeset
|
3676 xk = true; |
0 | 3677 } |
3678 } else if( above_centerline(_ptr) ) { | |
3679 o = tap->const_oop(); | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
958
diff
changeset
|
3680 xk = true; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
958
diff
changeset
|
3681 } else { |
1765
114e6b93e9e1
6980978: assert(mt == t->xmeet(this)) failed: meet not commutative
kvn
parents:
1761
diff
changeset
|
3682 // Only precise for identical arrays |
114e6b93e9e1
6980978: assert(mt == t->xmeet(this)) failed: meet not commutative
kvn
parents:
1761
diff
changeset
|
3683 xk = this->_klass_is_exact && (klass() == tap->klass()); |
0 | 3684 } |
1765
114e6b93e9e1
6980978: assert(mt == t->xmeet(this)) failed: meet not commutative
kvn
parents:
1761
diff
changeset
|
3685 return TypeAryPtr::make( ptr, o, tary, lazy_klass, xk, off, instance_id ); |
0 | 3686 } |
3687 case NotNull: | |
3688 case BotPTR: | |
3689 // Compute new klass on demand, do not use tap->_klass | |
3690 if (above_centerline(this->_ptr)) | |
3691 xk = tap->_klass_is_exact; | |
3692 else if (above_centerline(tap->_ptr)) | |
3693 xk = this->_klass_is_exact; | |
3694 else xk = (tap->_klass_is_exact & this->_klass_is_exact) && | |
3695 (klass() == tap->klass()); // Only precise for identical arrays | |
223 | 3696 return TypeAryPtr::make( ptr, NULL, tary, lazy_klass, xk, off, instance_id ); |
0 | 3697 default: ShouldNotReachHere(); |
3698 } | |
3699 } | |
3700 | |
3701 // All arrays inherit from Object class | |
3702 case InstPtr: { | |
3703 const TypeInstPtr *tp = t->is_instptr(); | |
3704 int offset = meet_offset(tp->offset()); | |
3705 PTR ptr = meet_ptr(tp->ptr()); | |
223 | 3706 int instance_id = meet_instance_id(tp->instance_id()); |
0 | 3707 switch (ptr) { |
3708 case TopPTR: | |
3709 case AnyNull: // Fall 'down' to dual of object klass | |
3710 if( tp->klass()->equals(ciEnv::current()->Object_klass()) ) { | |
223 | 3711 return TypeAryPtr::make( ptr, _ary, _klass, _klass_is_exact, offset, instance_id ); |
0 | 3712 } else { |
3713 // cannot subclass, so the meet has to fall badly below the centerline | |
3714 ptr = NotNull; | |
223 | 3715 instance_id = InstanceBot; |
3716 return TypeInstPtr::make( ptr, ciEnv::current()->Object_klass(), false, NULL,offset, instance_id); | |
0 | 3717 } |
3718 case Constant: | |
3719 case NotNull: | |
3720 case BotPTR: // Fall down to object klass | |
3721 // LCA is object_klass, but if we subclass from the top we can do better | |
3722 if (above_centerline(tp->ptr())) { | |
3723 // If 'tp' is above the centerline and it is Object class | |
605 | 3724 // then we can subclass in the Java class hierarchy. |
0 | 3725 if( tp->klass()->equals(ciEnv::current()->Object_klass()) ) { |
3726 // that is, my array type is a subtype of 'tp' klass | |
1279
2432acbee618
6930035: C2 type system incorrectly handles case j.l.Object->meet(constant AryPtr)
kvn
parents:
1137
diff
changeset
|
3727 return make( ptr, (ptr == Constant ? const_oop() : NULL), |
2432acbee618
6930035: C2 type system incorrectly handles case j.l.Object->meet(constant AryPtr)
kvn
parents:
1137
diff
changeset
|
3728 _ary, _klass, _klass_is_exact, offset, instance_id ); |
0 | 3729 } |
3730 } | |
3731 // The other case cannot happen, since t cannot be a subtype of an array. | |
3732 // The meet falls down to Object class below centerline. | |
3733 if( ptr == Constant ) | |
3734 ptr = NotNull; | |
223 | 3735 instance_id = InstanceBot; |
3736 return TypeInstPtr::make( ptr, ciEnv::current()->Object_klass(), false, NULL,offset, instance_id); | |
0 | 3737 default: typerr(t); |
3738 } | |
3739 } | |
3740 } | |
3741 return this; // Lint noise | |
3742 } | |
3743 | |
3744 //------------------------------xdual------------------------------------------ | |
3745 // Dual: compute field-by-field dual | |
3746 const Type *TypeAryPtr::xdual() const { | |
10278 | 3747 return new TypeAryPtr( dual_ptr(), _const_oop, _ary->dual()->is_ary(),_klass, _klass_is_exact, dual_offset(), dual_instance_id(), is_autobox_cache() ); |
0 | 3748 } |
3749 | |
820
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
3750 //----------------------interface_vs_oop--------------------------------------- |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
3751 #ifdef ASSERT |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
3752 bool TypeAryPtr::interface_vs_oop(const Type *t) const { |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
3753 const TypeAryPtr* t_aryptr = t->isa_aryptr(); |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
3754 if (t_aryptr) { |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
3755 return _ary->interface_vs_oop(t_aryptr->_ary); |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
3756 } |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
3757 return false; |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
3758 } |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
3759 #endif |
915cc9c5ebc6
6837094: False positive for "meet not symmetric" failure
kvn
parents:
628
diff
changeset
|
3760 |
0 | 3761 //------------------------------dump2------------------------------------------ |
3762 #ifndef PRODUCT | |
3763 void TypeAryPtr::dump2( Dict &d, uint depth, outputStream *st ) const { | |
3764 _ary->dump2(d,depth,st); | |
3765 switch( _ptr ) { | |
3766 case Constant: | |
3767 const_oop()->print(st); | |
3768 break; | |
3769 case BotPTR: | |
3770 if (!WizardMode && !Verbose) { | |
3771 if( _klass_is_exact ) st->print(":exact"); | |
3772 break; | |
3773 } | |
3774 case TopPTR: | |
3775 case AnyNull: | |
3776 case NotNull: | |
3777 st->print(":%s", ptr_msg[_ptr]); | |
3778 if( _klass_is_exact ) st->print(":exact"); | |
3779 break; | |
3780 } | |
3781 | |
64
b8f5ba577b02
6673473: (Escape Analysis) Add the instance's field information to PhiNode
kvn
parents:
0
diff
changeset
|
3782 if( _offset != 0 ) { |
b8f5ba577b02
6673473: (Escape Analysis) Add the instance's field information to PhiNode
kvn
parents:
0
diff
changeset
|
3783 int header_size = objArrayOopDesc::header_size() * wordSize; |
b8f5ba577b02
6673473: (Escape Analysis) Add the instance's field information to PhiNode
kvn
parents:
0
diff
changeset
|
3784 if( _offset == OffsetTop ) st->print("+undefined"); |
b8f5ba577b02
6673473: (Escape Analysis) Add the instance's field information to PhiNode
kvn
parents:
0
diff
changeset
|
3785 else if( _offset == OffsetBot ) st->print("+any"); |
b8f5ba577b02
6673473: (Escape Analysis) Add the instance's field information to PhiNode
kvn
parents:
0
diff
changeset
|
3786 else if( _offset < header_size ) st->print("+%d", _offset); |
b8f5ba577b02
6673473: (Escape Analysis) Add the instance's field information to PhiNode
kvn
parents:
0
diff
changeset
|
3787 else { |
b8f5ba577b02
6673473: (Escape Analysis) Add the instance's field information to PhiNode
kvn
parents:
0
diff
changeset
|
3788 BasicType basic_elem_type = elem()->basic_type(); |
b8f5ba577b02
6673473: (Escape Analysis) Add the instance's field information to PhiNode
kvn
parents:
0
diff
changeset
|
3789 int array_base = arrayOopDesc::base_offset_in_bytes(basic_elem_type); |
b8f5ba577b02
6673473: (Escape Analysis) Add the instance's field information to PhiNode
kvn
parents:
0
diff
changeset
|
3790 int elem_size = type2aelembytes(basic_elem_type); |
b8f5ba577b02
6673473: (Escape Analysis) Add the instance's field information to PhiNode
kvn
parents:
0
diff
changeset
|
3791 st->print("[%d]", (_offset - array_base)/elem_size); |
b8f5ba577b02
6673473: (Escape Analysis) Add the instance's field information to PhiNode
kvn
parents:
0
diff
changeset
|
3792 } |
b8f5ba577b02
6673473: (Escape Analysis) Add the instance's field information to PhiNode
kvn
parents:
0
diff
changeset
|
3793 } |
b8f5ba577b02
6673473: (Escape Analysis) Add the instance's field information to PhiNode
kvn
parents:
0
diff
changeset
|
3794 st->print(" *"); |
223 | 3795 if (_instance_id == InstanceTop) |
3796 st->print(",iid=top"); | |
3797 else if (_instance_id != InstanceBot) | |
0 | 3798 st->print(",iid=%d",_instance_id); |
3799 } | |
3800 #endif | |
3801 | |
3802 bool TypeAryPtr::empty(void) const { | |
3803 if (_ary->empty()) return true; | |
3804 return TypeOopPtr::empty(); | |
3805 } | |
3806 | |
3807 //------------------------------add_offset------------------------------------- | |
306
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
3808 const TypePtr *TypeAryPtr::add_offset( intptr_t offset ) const { |
0 | 3809 return make( _ptr, _const_oop, _ary, _klass, _klass_is_exact, xadd_offset(offset), _instance_id ); |
3810 } | |
3811 | |
3812 | |
3813 //============================================================================= | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3814 |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3815 //------------------------------hash------------------------------------------- |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3816 // Type-specific hashing function. |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3817 int TypeNarrowPtr::hash(void) const { |
827
bf3489cc0aa0
6856025: assert(_base >= OopPtr && _base <= KlassPtr,"Not a Java pointer")
never
parents:
820
diff
changeset
|
3818 return _ptrtype->hash() + 7; |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3819 } |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3820 |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3821 bool TypeNarrowPtr::singleton(void) const { // TRUE if type is a singleton |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3822 return _ptrtype->singleton(); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3823 } |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3824 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3825 bool TypeNarrowPtr::empty(void) const { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3826 return _ptrtype->empty(); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3827 } |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3828 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3829 intptr_t TypeNarrowPtr::get_con() const { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3830 return _ptrtype->get_con(); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3831 } |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3832 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3833 bool TypeNarrowPtr::eq( const Type *t ) const { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3834 const TypeNarrowPtr* tc = isa_same_narrowptr(t); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3835 if (tc != NULL) { |
827
bf3489cc0aa0
6856025: assert(_base >= OopPtr && _base <= KlassPtr,"Not a Java pointer")
never
parents:
820
diff
changeset
|
3836 if (_ptrtype->base() != tc->_ptrtype->base()) { |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3837 return false; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3838 } |
827
bf3489cc0aa0
6856025: assert(_base >= OopPtr && _base <= KlassPtr,"Not a Java pointer")
never
parents:
820
diff
changeset
|
3839 return tc->_ptrtype->eq(_ptrtype); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3840 } |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3841 return false; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3842 } |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3843 |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3844 const Type *TypeNarrowPtr::xdual() const { // Compute dual right now. |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3845 const TypePtr* odual = _ptrtype->dual()->is_ptr(); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3846 return make_same_narrowptr(odual); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3847 } |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3848 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3849 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3850 const Type *TypeNarrowPtr::filter( const Type *kills ) const { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3851 if (isa_same_narrowptr(kills)) { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3852 const Type* ft =_ptrtype->filter(is_same_narrowptr(kills)->_ptrtype); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3853 if (ft->empty()) |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3854 return Type::TOP; // Canonical empty value |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3855 if (ft->isa_ptr()) { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3856 return make_hash_same_narrowptr(ft->isa_ptr()); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3857 } |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3858 return ft; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3859 } else if (kills->isa_ptr()) { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3860 const Type* ft = _ptrtype->join(kills); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3861 if (ft->empty()) |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3862 return Type::TOP; // Canonical empty value |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3863 return ft; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3864 } else { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3865 return Type::TOP; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3866 } |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3867 } |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3868 |
293
c3e045194476
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
247
diff
changeset
|
3869 //------------------------------xmeet------------------------------------------ |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3870 // Compute the MEET of two types. It returns a new Type object. |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3871 const Type *TypeNarrowPtr::xmeet( const Type *t ) const { |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3872 // Perform a fast test for common case; meeting the same types together. |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3873 if( this == t ) return this; // Meeting same type-rep? |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3874 |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3875 if (t->base() == base()) { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3876 const Type* result = _ptrtype->xmeet(t->make_ptr()); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3877 if (result->isa_ptr()) { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3878 return make_hash_same_narrowptr(result->is_ptr()); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3879 } |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3880 return result; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3881 } |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3882 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3883 // Current "this->_base" is NarrowKlass or NarrowOop |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3884 switch (t->base()) { // switch on original type |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3885 |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3886 case Int: // Mixing ints & oops happens when javac |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3887 case Long: // reuses local variables |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3888 case FloatTop: |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3889 case FloatCon: |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3890 case FloatBot: |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3891 case DoubleTop: |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3892 case DoubleCon: |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3893 case DoubleBot: |
293
c3e045194476
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
247
diff
changeset
|
3894 case AnyPtr: |
c3e045194476
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
247
diff
changeset
|
3895 case RawPtr: |
c3e045194476
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
247
diff
changeset
|
3896 case OopPtr: |
c3e045194476
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
247
diff
changeset
|
3897 case InstPtr: |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3898 case AryPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3899 case MetadataPtr: |
293
c3e045194476
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
247
diff
changeset
|
3900 case KlassPtr: |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3901 case NarrowOop: |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3902 case NarrowKlass: |
293
c3e045194476
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
247
diff
changeset
|
3903 |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3904 case Bottom: // Ye Olde Default |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3905 return Type::BOTTOM; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3906 case Top: |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3907 return this; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3908 |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3909 default: // All else is a mistake |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3910 typerr(t); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3911 |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3912 } // End of switch |
293
c3e045194476
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
247
diff
changeset
|
3913 |
c3e045194476
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
247
diff
changeset
|
3914 return this; |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3915 } |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3916 |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3917 #ifndef PRODUCT |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3918 void TypeNarrowPtr::dump2( Dict & d, uint depth, outputStream *st ) const { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3919 _ptrtype->dump2(d, depth, st); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3920 } |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3921 #endif |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3922 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3923 const TypeNarrowOop *TypeNarrowOop::BOTTOM; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3924 const TypeNarrowOop *TypeNarrowOop::NULL_PTR; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3925 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3926 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3927 const TypeNarrowOop* TypeNarrowOop::make(const TypePtr* type) { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3928 return (const TypeNarrowOop*)(new TypeNarrowOop(type))->hashcons(); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3929 } |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3930 |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3931 |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3932 #ifndef PRODUCT |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3933 void TypeNarrowOop::dump2( Dict & d, uint depth, outputStream *st ) const { |
417 | 3934 st->print("narrowoop: "); |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3935 TypeNarrowPtr::dump2(d, depth, st); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3936 } |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3937 #endif |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3938 |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3939 const TypeNarrowKlass *TypeNarrowKlass::NULL_PTR; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3940 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3941 const TypeNarrowKlass* TypeNarrowKlass::make(const TypePtr* type) { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3942 return (const TypeNarrowKlass*)(new TypeNarrowKlass(type))->hashcons(); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3943 } |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3944 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3945 #ifndef PRODUCT |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3946 void TypeNarrowKlass::dump2( Dict & d, uint depth, outputStream *st ) const { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3947 st->print("narrowklass: "); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3948 TypeNarrowPtr::dump2(d, depth, st); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3949 } |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
3950 #endif |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
3951 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3952 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3953 //------------------------------eq--------------------------------------------- |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3954 // Structural equality check for Type representations |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3955 bool TypeMetadataPtr::eq( const Type *t ) const { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3956 const TypeMetadataPtr *a = (const TypeMetadataPtr*)t; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3957 ciMetadata* one = metadata(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3958 ciMetadata* two = a->metadata(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3959 if (one == NULL || two == NULL) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3960 return (one == two) && TypePtr::eq(t); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3961 } else { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3962 return one->equals(two) && TypePtr::eq(t); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3963 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3964 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3965 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3966 //------------------------------hash------------------------------------------- |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3967 // Type-specific hashing function. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3968 int TypeMetadataPtr::hash(void) const { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3969 return |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3970 (metadata() ? metadata()->hash() : 0) + |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3971 TypePtr::hash(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3972 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3973 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3974 //------------------------------singleton-------------------------------------- |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3975 // TRUE if Type is a singleton type, FALSE otherwise. Singletons are simple |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3976 // constants |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3977 bool TypeMetadataPtr::singleton(void) const { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3978 // detune optimizer to not generate constant metadta + constant offset as a constant! |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3979 // TopPTR, Null, AnyNull, Constant are all singletons |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3980 return (_offset == 0) && !below_centerline(_ptr); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3981 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3982 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3983 //------------------------------add_offset------------------------------------- |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3984 const TypePtr *TypeMetadataPtr::add_offset( intptr_t offset ) const { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3985 return make( _ptr, _metadata, xadd_offset(offset)); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3986 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3987 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3988 //-----------------------------filter------------------------------------------ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3989 // Do not allow interface-vs.-noninterface joins to collapse to top. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3990 const Type *TypeMetadataPtr::filter( const Type *kills ) const { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3991 const TypeMetadataPtr* ft = join(kills)->isa_metadataptr(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3992 if (ft == NULL || ft->empty()) |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3993 return Type::TOP; // Canonical empty value |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3994 return ft; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3995 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3996 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3997 //------------------------------get_con---------------------------------------- |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3998 intptr_t TypeMetadataPtr::get_con() const { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
3999 assert( _ptr == Null || _ptr == Constant, "" ); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4000 assert( _offset >= 0, "" ); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4001 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4002 if (_offset != 0) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4003 // After being ported to the compiler interface, the compiler no longer |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4004 // directly manipulates the addresses of oops. Rather, it only has a pointer |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4005 // to a handle at compile time. This handle is embedded in the generated |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4006 // code and dereferenced at the time the nmethod is made. Until that time, |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4007 // it is not reasonable to do arithmetic with the addresses of oops (we don't |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4008 // have access to the addresses!). This does not seem to currently happen, |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4009 // but this assertion here is to help prevent its occurence. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4010 tty->print_cr("Found oop constant with non-zero offset"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4011 ShouldNotReachHere(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4012 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4013 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4014 return (intptr_t)metadata()->constant_encoding(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4015 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4016 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4017 //------------------------------cast_to_ptr_type------------------------------- |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4018 const Type *TypeMetadataPtr::cast_to_ptr_type(PTR ptr) const { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4019 if( ptr == _ptr ) return this; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4020 return make(ptr, metadata(), _offset); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4021 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4022 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4023 //------------------------------meet------------------------------------------- |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4024 // Compute the MEET of two types. It returns a new Type object. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4025 const Type *TypeMetadataPtr::xmeet( const Type *t ) const { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4026 // Perform a fast test for common case; meeting the same types together. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4027 if( this == t ) return this; // Meeting same type-rep? |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4028 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4029 // Current "this->_base" is OopPtr |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4030 switch (t->base()) { // switch on original type |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4031 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4032 case Int: // Mixing ints & oops happens when javac |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4033 case Long: // reuses local variables |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4034 case FloatTop: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4035 case FloatCon: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4036 case FloatBot: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4037 case DoubleTop: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4038 case DoubleCon: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4039 case DoubleBot: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4040 case NarrowOop: |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
4041 case NarrowKlass: |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4042 case Bottom: // Ye Olde Default |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4043 return Type::BOTTOM; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4044 case Top: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4045 return this; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4046 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4047 default: // All else is a mistake |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4048 typerr(t); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4049 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4050 case AnyPtr: { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4051 // Found an AnyPtr type vs self-OopPtr type |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4052 const TypePtr *tp = t->is_ptr(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4053 int offset = meet_offset(tp->offset()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4054 PTR ptr = meet_ptr(tp->ptr()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4055 switch (tp->ptr()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4056 case Null: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4057 if (ptr == Null) return TypePtr::make(AnyPtr, ptr, offset); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4058 // else fall through: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4059 case TopPTR: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4060 case AnyNull: { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4061 return make(ptr, NULL, offset); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4062 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4063 case BotPTR: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4064 case NotNull: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4065 return TypePtr::make(AnyPtr, ptr, offset); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4066 default: typerr(t); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4067 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4068 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4069 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4070 case RawPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4071 case KlassPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4072 case OopPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4073 case InstPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4074 case AryPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4075 return TypePtr::BOTTOM; // Oop meet raw is not well defined |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4076 |
6728 | 4077 case MetadataPtr: { |
4078 const TypeMetadataPtr *tp = t->is_metadataptr(); | |
4079 int offset = meet_offset(tp->offset()); | |
4080 PTR tptr = tp->ptr(); | |
4081 PTR ptr = meet_ptr(tptr); | |
4082 ciMetadata* md = (tptr == TopPTR) ? metadata() : tp->metadata(); | |
4083 if (tptr == TopPTR || _ptr == TopPTR || | |
4084 metadata()->equals(tp->metadata())) { | |
4085 return make(ptr, md, offset); | |
4086 } | |
4087 // metadata is different | |
4088 if( ptr == Constant ) { // Cannot be equal constants, so... | |
4089 if( tptr == Constant && _ptr != Constant) return t; | |
4090 if( _ptr == Constant && tptr != Constant) return this; | |
4091 ptr = NotNull; // Fall down in lattice | |
4092 } | |
4093 return make(ptr, NULL, offset); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4094 break; |
6728 | 4095 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4096 } // End of switch |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4097 return this; // Return the double constant |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4098 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4099 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4100 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4101 //------------------------------xdual------------------------------------------ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4102 // Dual of a pure metadata pointer. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4103 const Type *TypeMetadataPtr::xdual() const { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4104 return new TypeMetadataPtr(dual_ptr(), metadata(), dual_offset()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4105 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4106 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4107 //------------------------------dump2------------------------------------------ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4108 #ifndef PRODUCT |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4109 void TypeMetadataPtr::dump2( Dict &d, uint depth, outputStream *st ) const { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4110 st->print("metadataptr:%s", ptr_msg[_ptr]); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4111 if( metadata() ) st->print(INTPTR_FORMAT, metadata()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4112 switch( _offset ) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4113 case OffsetTop: st->print("+top"); break; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4114 case OffsetBot: st->print("+any"); break; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4115 case 0: break; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4116 default: st->print("+%d",_offset); break; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4117 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4118 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4119 #endif |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4120 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4121 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4122 //============================================================================= |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4123 // Convenience common pre-built type. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4124 const TypeMetadataPtr *TypeMetadataPtr::BOTTOM; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4125 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4126 TypeMetadataPtr::TypeMetadataPtr(PTR ptr, ciMetadata* metadata, int offset): |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4127 TypePtr(MetadataPtr, ptr, offset), _metadata(metadata) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4128 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4129 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4130 const TypeMetadataPtr* TypeMetadataPtr::make(ciMethod* m) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4131 return make(Constant, m, 0); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4132 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4133 const TypeMetadataPtr* TypeMetadataPtr::make(ciMethodData* m) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4134 return make(Constant, m, 0); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4135 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4136 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4137 //------------------------------make------------------------------------------- |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4138 // Create a meta data constant |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4139 const TypeMetadataPtr *TypeMetadataPtr::make(PTR ptr, ciMetadata* m, int offset) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4140 assert(m == NULL || !m->is_klass(), "wrong type"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4141 return (TypeMetadataPtr*)(new TypeMetadataPtr(ptr, m, offset))->hashcons(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4142 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4143 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4144 |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
4145 //============================================================================= |
0 | 4146 // Convenience common pre-built types. |
4147 | |
4148 // Not-null object klass or below | |
4149 const TypeKlassPtr *TypeKlassPtr::OBJECT; | |
4150 const TypeKlassPtr *TypeKlassPtr::OBJECT_OR_NULL; | |
4151 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4152 //------------------------------TypeKlassPtr----------------------------------- |
0 | 4153 TypeKlassPtr::TypeKlassPtr( PTR ptr, ciKlass* klass, int offset ) |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4154 : TypePtr(KlassPtr, ptr, offset), _klass(klass), _klass_is_exact(ptr == Constant) { |
0 | 4155 } |
4156 | |
4157 //------------------------------make------------------------------------------- | |
4158 // ptr to klass 'k', if Constant, or possibly to a sub-klass if not a Constant | |
4159 const TypeKlassPtr *TypeKlassPtr::make( PTR ptr, ciKlass* k, int offset ) { | |
4160 assert( k != NULL, "Expect a non-NULL klass"); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4161 assert(k->is_instance_klass() || k->is_array_klass(), "Incorrect type of klass oop"); |
0 | 4162 TypeKlassPtr *r = |
4163 (TypeKlassPtr*)(new TypeKlassPtr(ptr, k, offset))->hashcons(); | |
4164 | |
4165 return r; | |
4166 } | |
4167 | |
4168 //------------------------------eq--------------------------------------------- | |
4169 // Structural equality check for Type representations | |
4170 bool TypeKlassPtr::eq( const Type *t ) const { | |
4171 const TypeKlassPtr *p = t->is_klassptr(); | |
4172 return | |
4173 klass()->equals(p->klass()) && | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4174 TypePtr::eq(p); |
0 | 4175 } |
4176 | |
4177 //------------------------------hash------------------------------------------- | |
4178 // Type-specific hashing function. | |
4179 int TypeKlassPtr::hash(void) const { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4180 return klass()->hash() + TypePtr::hash(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4181 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4182 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4183 //------------------------------singleton-------------------------------------- |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4184 // TRUE if Type is a singleton type, FALSE otherwise. Singletons are simple |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4185 // constants |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4186 bool TypeKlassPtr::singleton(void) const { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4187 // detune optimizer to not generate constant klass + constant offset as a constant! |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4188 // TopPTR, Null, AnyNull, Constant are all singletons |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4189 return (_offset == 0) && !below_centerline(_ptr); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4190 } |
0 | 4191 |
1761 | 4192 //----------------------compute_klass------------------------------------------ |
4193 // Compute the defining klass for this class | |
4194 ciKlass* TypeAryPtr::compute_klass(DEBUG_ONLY(bool verify)) const { | |
4195 // Compute _klass based on element type. | |
0 | 4196 ciKlass* k_ary = NULL; |
4197 const TypeInstPtr *tinst; | |
4198 const TypeAryPtr *tary; | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
4199 const Type* el = elem(); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
4200 if (el->isa_narrowoop()) { |
221
1e026f8da827
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
183
diff
changeset
|
4201 el = el->make_ptr(); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
4202 } |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
4203 |
0 | 4204 // Get element klass |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
4205 if ((tinst = el->isa_instptr()) != NULL) { |
0 | 4206 // Compute array klass from element klass |
4207 k_ary = ciObjArrayKlass::make(tinst->klass()); | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
4208 } else if ((tary = el->isa_aryptr()) != NULL) { |
0 | 4209 // Compute array klass from element klass |
4210 ciKlass* k_elem = tary->klass(); | |
4211 // If element type is something like bottom[], k_elem will be null. | |
4212 if (k_elem != NULL) | |
4213 k_ary = ciObjArrayKlass::make(k_elem); | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
4214 } else if ((el->base() == Type::Top) || |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
4215 (el->base() == Type::Bottom)) { |
0 | 4216 // element type of Bottom occurs from meet of basic type |
4217 // and object; Top occurs when doing join on Bottom. | |
4218 // Leave k_ary at NULL. | |
4219 } else { | |
4220 // Cannot compute array klass directly from basic type, | |
4221 // since subtypes of TypeInt all have basic type T_INT. | |
1761 | 4222 #ifdef ASSERT |
4223 if (verify && el->isa_int()) { | |
4224 // Check simple cases when verifying klass. | |
4225 BasicType bt = T_ILLEGAL; | |
4226 if (el == TypeInt::BYTE) { | |
4227 bt = T_BYTE; | |
4228 } else if (el == TypeInt::SHORT) { | |
4229 bt = T_SHORT; | |
4230 } else if (el == TypeInt::CHAR) { | |
4231 bt = T_CHAR; | |
4232 } else if (el == TypeInt::INT) { | |
4233 bt = T_INT; | |
4234 } else { | |
4235 return _klass; // just return specified klass | |
4236 } | |
4237 return ciTypeArrayKlass::make(bt); | |
4238 } | |
4239 #endif | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
4240 assert(!el->isa_int(), |
0 | 4241 "integral arrays must be pre-equipped with a class"); |
4242 // Compute array klass directly from basic type | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
64
diff
changeset
|
4243 k_ary = ciTypeArrayKlass::make(el->basic_type()); |
0 | 4244 } |
1761 | 4245 return k_ary; |
4246 } | |
4247 | |
4248 //------------------------------klass------------------------------------------ | |
4249 // Return the defining klass for this class | |
4250 ciKlass* TypeAryPtr::klass() const { | |
4251 if( _klass ) return _klass; // Return cached value, if possible | |
4252 | |
4253 // Oops, need to compute _klass and cache it | |
4254 ciKlass* k_ary = compute_klass(); | |
0 | 4255 |
2354
83f08886981c
7026631: field _klass is incorrectly set for dual type of TypeAryPtr::OOPS
kvn
parents:
2351
diff
changeset
|
4256 if( this != TypeAryPtr::OOPS && this->dual() != TypeAryPtr::OOPS ) { |
0 | 4257 // The _klass field acts as a cache of the underlying |
4258 // ciKlass for this array type. In order to set the field, | |
4259 // we need to cast away const-ness. | |
4260 // | |
4261 // IMPORTANT NOTE: we *never* set the _klass field for the | |
4262 // type TypeAryPtr::OOPS. This Type is shared between all | |
4263 // active compilations. However, the ciKlass which represents | |
4264 // this Type is *not* shared between compilations, so caching | |
4265 // this value would result in fetching a dangling pointer. | |
4266 // | |
4267 // Recomputing the underlying ciKlass for each request is | |
4268 // a bit less efficient than caching, but calls to | |
4269 // TypeAryPtr::OOPS->klass() are not common enough to matter. | |
4270 ((TypeAryPtr*)this)->_klass = k_ary; | |
163 | 4271 if (UseCompressedOops && k_ary != NULL && k_ary->is_obj_array_klass() && |
4272 _offset != 0 && _offset != arrayOopDesc::length_offset_in_bytes()) { | |
4273 ((TypeAryPtr*)this)->_is_ptr_to_narrowoop = true; | |
4274 } | |
4275 } | |
0 | 4276 return k_ary; |
4277 } | |
4278 | |
4279 | |
4280 //------------------------------add_offset------------------------------------- | |
4281 // Access internals of klass object | |
306
af945ba2e739
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
293
diff
changeset
|
4282 const TypePtr *TypeKlassPtr::add_offset( intptr_t offset ) const { |
0 | 4283 return make( _ptr, klass(), xadd_offset(offset) ); |
4284 } | |
4285 | |
4286 //------------------------------cast_to_ptr_type------------------------------- | |
4287 const Type *TypeKlassPtr::cast_to_ptr_type(PTR ptr) const { | |
557
465813e0303a
6794939: assert(_base == OopPtr,"subclass must override cast_to_ptr_type")
kvn
parents:
555
diff
changeset
|
4288 assert(_base == KlassPtr, "subclass must override cast_to_ptr_type"); |
0 | 4289 if( ptr == _ptr ) return this; |
4290 return make(ptr, _klass, _offset); | |
4291 } | |
4292 | |
4293 | |
4294 //-----------------------------cast_to_exactness------------------------------- | |
4295 const Type *TypeKlassPtr::cast_to_exactness(bool klass_is_exact) const { | |
4296 if( klass_is_exact == _klass_is_exact ) return this; | |
4297 if (!UseExactTypes) return this; | |
4298 return make(klass_is_exact ? Constant : NotNull, _klass, _offset); | |
4299 } | |
4300 | |
4301 | |
4302 //-----------------------------as_instance_type-------------------------------- | |
4303 // Corresponding type for an instance of the given class. | |
4304 // It will be NotNull, and exact if and only if the klass type is exact. | |
4305 const TypeOopPtr* TypeKlassPtr::as_instance_type() const { | |
4306 ciKlass* k = klass(); | |
4307 bool xk = klass_is_exact(); | |
4308 //return TypeInstPtr::make(TypePtr::NotNull, k, xk, NULL, 0); | |
4309 const TypeOopPtr* toop = TypeOopPtr::make_from_klass_raw(k); | |
8760
96ef09c26978
8009166: [parfait] Null pointer deference in hotspot/src/share/vm/opto/type.cpp
morris
parents:
7623
diff
changeset
|
4310 guarantee(toop != NULL, "need type for given klass"); |
0 | 4311 toop = toop->cast_to_ptr_type(TypePtr::NotNull)->is_oopptr(); |
4312 return toop->cast_to_exactness(xk)->is_oopptr(); | |
4313 } | |
4314 | |
4315 | |
4316 //------------------------------xmeet------------------------------------------ | |
4317 // Compute the MEET of two types, return a new Type object. | |
4318 const Type *TypeKlassPtr::xmeet( const Type *t ) const { | |
4319 // Perform a fast test for common case; meeting the same types together. | |
4320 if( this == t ) return this; // Meeting same type-rep? | |
4321 | |
4322 // Current "this->_base" is Pointer | |
4323 switch (t->base()) { // switch on original type | |
4324 | |
4325 case Int: // Mixing ints & oops happens when javac | |
4326 case Long: // reuses local variables | |
4327 case FloatTop: | |
4328 case FloatCon: | |
4329 case FloatBot: | |
4330 case DoubleTop: | |
4331 case DoubleCon: | |
4332 case DoubleBot: | |
293
c3e045194476
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
247
diff
changeset
|
4333 case NarrowOop: |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6735
diff
changeset
|
4334 case NarrowKlass: |
0 | 4335 case Bottom: // Ye Olde Default |
4336 return Type::BOTTOM; | |
4337 case Top: | |
4338 return this; | |
4339 | |
4340 default: // All else is a mistake | |
4341 typerr(t); | |
4342 | |
4343 case AnyPtr: { // Meeting to AnyPtrs | |
4344 // Found an AnyPtr type vs self-KlassPtr type | |
4345 const TypePtr *tp = t->is_ptr(); | |
4346 int offset = meet_offset(tp->offset()); | |
4347 PTR ptr = meet_ptr(tp->ptr()); | |
4348 switch (tp->ptr()) { | |
4349 case TopPTR: | |
4350 return this; | |
4351 case Null: | |
4352 if( ptr == Null ) return TypePtr::make( AnyPtr, ptr, offset ); | |
4353 case AnyNull: | |
4354 return make( ptr, klass(), offset ); | |
4355 case BotPTR: | |
4356 case NotNull: | |
4357 return TypePtr::make(AnyPtr, ptr, offset); | |
4358 default: typerr(t); | |
4359 } | |
4360 } | |
4361 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4362 case RawPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4363 case MetadataPtr: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4364 case OopPtr: |
0 | 4365 case AryPtr: // Meet with AryPtr |
4366 case InstPtr: // Meet with InstPtr | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4367 return TypePtr::BOTTOM; |
0 | 4368 |
4369 // | |
4370 // A-top } | |
4371 // / | \ } Tops | |
4372 // B-top A-any C-top } | |
4373 // | / | \ | } Any-nulls | |
4374 // B-any | C-any } | |
4375 // | | | | |
4376 // B-con A-con C-con } constants; not comparable across classes | |
4377 // | | | | |
4378 // B-not | C-not } | |
4379 // | \ | / | } not-nulls | |
4380 // B-bot A-not C-bot } | |
4381 // \ | / } Bottoms | |
4382 // A-bot } | |
4383 // | |
4384 | |
4385 case KlassPtr: { // Meet two KlassPtr types | |
4386 const TypeKlassPtr *tkls = t->is_klassptr(); | |
4387 int off = meet_offset(tkls->offset()); | |
4388 PTR ptr = meet_ptr(tkls->ptr()); | |
4389 | |
4390 // Check for easy case; klasses are equal (and perhaps not loaded!) | |
4391 // If we have constants, then we created oops so classes are loaded | |
4392 // and we can handle the constants further down. This case handles | |
4393 // not-loaded classes | |
4394 if( ptr != Constant && tkls->klass()->equals(klass()) ) { | |
4395 return make( ptr, klass(), off ); | |
4396 } | |
4397 | |
4398 // Classes require inspection in the Java klass hierarchy. Must be loaded. | |
4399 ciKlass* tkls_klass = tkls->klass(); | |
4400 ciKlass* this_klass = this->klass(); | |
4401 assert( tkls_klass->is_loaded(), "This class should have been loaded."); | |
4402 assert( this_klass->is_loaded(), "This class should have been loaded."); | |
4403 | |
4404 // If 'this' type is above the centerline and is a superclass of the | |
4405 // other, we can treat 'this' as having the same type as the other. | |
4406 if ((above_centerline(this->ptr())) && | |
4407 tkls_klass->is_subtype_of(this_klass)) { | |
4408 this_klass = tkls_klass; | |
4409 } | |
4410 // If 'tinst' type is above the centerline and is a superclass of the | |
4411 // other, we can treat 'tinst' as having the same type as the other. | |
4412 if ((above_centerline(tkls->ptr())) && | |
4413 this_klass->is_subtype_of(tkls_klass)) { | |
4414 tkls_klass = this_klass; | |
4415 } | |
4416 | |
4417 // Check for classes now being equal | |
4418 if (tkls_klass->equals(this_klass)) { | |
4419 // If the klasses are equal, the constants may still differ. Fall to | |
4420 // NotNull if they do (neither constant is NULL; that is a special case | |
4421 // handled elsewhere). | |
4422 if( ptr == Constant ) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4423 if (this->_ptr == Constant && tkls->_ptr == Constant && |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4424 this->klass()->equals(tkls->klass())); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4425 else if (above_centerline(this->ptr())); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4426 else if (above_centerline(tkls->ptr())); |
0 | 4427 else |
4428 ptr = NotNull; | |
4429 } | |
4430 return make( ptr, this_klass, off ); | |
4431 } // Else classes are not equal | |
4432 | |
4433 // Since klasses are different, we require the LCA in the Java | |
4434 // class hierarchy - which means we have to fall to at least NotNull. | |
4435 if( ptr == TopPTR || ptr == AnyNull || ptr == Constant ) | |
4436 ptr = NotNull; | |
4437 // Now we find the LCA of Java classes | |
4438 ciKlass* k = this_klass->least_common_ancestor(tkls_klass); | |
4439 return make( ptr, k, off ); | |
4440 } // End of case KlassPtr | |
4441 | |
4442 } // End of switch | |
4443 return this; // Return the double constant | |
4444 } | |
4445 | |
4446 //------------------------------xdual------------------------------------------ | |
4447 // Dual: compute field-by-field dual | |
4448 const Type *TypeKlassPtr::xdual() const { | |
4449 return new TypeKlassPtr( dual_ptr(), klass(), dual_offset() ); | |
4450 } | |
4451 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4452 //------------------------------get_con---------------------------------------- |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4453 intptr_t TypeKlassPtr::get_con() const { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4454 assert( _ptr == Null || _ptr == Constant, "" ); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4455 assert( _offset >= 0, "" ); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4456 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4457 if (_offset != 0) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4458 // After being ported to the compiler interface, the compiler no longer |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4459 // directly manipulates the addresses of oops. Rather, it only has a pointer |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4460 // to a handle at compile time. This handle is embedded in the generated |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4461 // code and dereferenced at the time the nmethod is made. Until that time, |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4462 // it is not reasonable to do arithmetic with the addresses of oops (we don't |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4463 // have access to the addresses!). This does not seem to currently happen, |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4464 // but this assertion here is to help prevent its occurence. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4465 tty->print_cr("Found oop constant with non-zero offset"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4466 ShouldNotReachHere(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4467 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4468 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4469 return (intptr_t)klass()->constant_encoding(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6198
diff
changeset
|
4470 } |
0 | 4471 //------------------------------dump2------------------------------------------ |
4472 // Dump Klass Type | |
4473 #ifndef PRODUCT | |
4474 void TypeKlassPtr::dump2( Dict & d, uint depth, outputStream *st ) const { | |
4475 switch( _ptr ) { | |
4476 case Constant: | |
4477 st->print("precise "); | |
4478 case NotNull: | |
4479 { | |
4480 const char *name = klass()->name()->as_utf8(); | |
4481 if( name ) { | |
4482 st->print("klass %s: " INTPTR_FORMAT, name, klass()); | |
4483 } else { | |
4484 ShouldNotReachHere(); | |
4485 } | |
4486 } | |
4487 case BotPTR: | |
4488 if( !WizardMode && !Verbose && !_klass_is_exact ) break; | |
4489 case TopPTR: | |
4490 case AnyNull: | |
4491 st->print(":%s", ptr_msg[_ptr]); | |
4492 if( _klass_is_exact ) st->print(":exact"); | |
4493 break; | |
4494 } | |
4495 | |
4496 if( _offset ) { // Dump offset, if any | |
4497 if( _offset == OffsetBot ) { st->print("+any"); } | |
4498 else if( _offset == OffsetTop ) { st->print("+unknown"); } | |
4499 else { st->print("+%d", _offset); } | |
4500 } | |
4501 | |
4502 st->print(" *"); | |
4503 } | |
4504 #endif | |
4505 | |
4506 | |
4507 | |
4508 //============================================================================= | |
4509 // Convenience common pre-built types. | |
4510 | |
4511 //------------------------------make------------------------------------------- | |
4512 const TypeFunc *TypeFunc::make( const TypeTuple *domain, const TypeTuple *range ) { | |
4513 return (TypeFunc*)(new TypeFunc(domain,range))->hashcons(); | |
4514 } | |
4515 | |
4516 //------------------------------make------------------------------------------- | |
4517 const TypeFunc *TypeFunc::make(ciMethod* method) { | |
4518 Compile* C = Compile::current(); | |
4519 const TypeFunc* tf = C->last_tf(method); // check cache | |
4520 if (tf != NULL) return tf; // The hit rate here is almost 50%. | |
4521 const TypeTuple *domain; | |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1009
diff
changeset
|
4522 if (method->is_static()) { |
0 | 4523 domain = TypeTuple::make_domain(NULL, method->signature()); |
4524 } else { | |
4525 domain = TypeTuple::make_domain(method->holder(), method->signature()); | |
4526 } | |
4527 const TypeTuple *range = TypeTuple::make_range(method->signature()); | |
4528 tf = TypeFunc::make(domain, range); | |
4529 C->set_last_tf(method, tf); // fill cache | |
4530 return tf; | |
4531 } | |
4532 | |
4533 //------------------------------meet------------------------------------------- | |
4534 // Compute the MEET of two types. It returns a new Type object. | |
4535 const Type *TypeFunc::xmeet( const Type *t ) const { | |
4536 // Perform a fast test for common case; meeting the same types together. | |
4537 if( this == t ) return this; // Meeting same type-rep? | |
4538 | |
4539 // Current "this->_base" is Func | |
4540 switch (t->base()) { // switch on original type | |
4541 | |
4542 case Bottom: // Ye Olde Default | |
4543 return t; | |
4544 | |
4545 default: // All else is a mistake | |
4546 typerr(t); | |
4547 | |
4548 case Top: | |
4549 break; | |
4550 } | |
4551 return this; // Return the double constant | |
4552 } | |
4553 | |
4554 //------------------------------xdual------------------------------------------ | |
4555 // Dual: compute field-by-field dual | |
4556 const Type *TypeFunc::xdual() const { | |
4557 return this; | |
4558 } | |
4559 | |
4560 //------------------------------eq--------------------------------------------- | |
4561 // Structural equality check for Type representations | |
4562 bool TypeFunc::eq( const Type *t ) const { | |
4563 const TypeFunc *a = (const TypeFunc*)t; | |
4564 return _domain == a->_domain && | |
4565 _range == a->_range; | |
4566 } | |
4567 | |
4568 //------------------------------hash------------------------------------------- | |
4569 // Type-specific hashing function. | |
4570 int TypeFunc::hash(void) const { | |
4571 return (intptr_t)_domain + (intptr_t)_range; | |
4572 } | |
4573 | |
4574 //------------------------------dump2------------------------------------------ | |
4575 // Dump Function Type | |
4576 #ifndef PRODUCT | |
4577 void TypeFunc::dump2( Dict &d, uint depth, outputStream *st ) const { | |
4578 if( _range->_cnt <= Parms ) | |
4579 st->print("void"); | |
4580 else { | |
4581 uint i; | |
4582 for (i = Parms; i < _range->_cnt-1; i++) { | |
4583 _range->field_at(i)->dump2(d,depth,st); | |
4584 st->print("/"); | |
4585 } | |
4586 _range->field_at(i)->dump2(d,depth,st); | |
4587 } | |
4588 st->print(" "); | |
4589 st->print("( "); | |
4590 if( !depth || d[this] ) { // Check for recursive dump | |
4591 st->print("...)"); | |
4592 return; | |
4593 } | |
4594 d.Insert((void*)this,(void*)this); // Stop recursion | |
4595 if (Parms < _domain->_cnt) | |
4596 _domain->field_at(Parms)->dump2(d,depth-1,st); | |
4597 for (uint i = Parms+1; i < _domain->_cnt; i++) { | |
4598 st->print(", "); | |
4599 _domain->field_at(i)->dump2(d,depth-1,st); | |
4600 } | |
4601 st->print(" )"); | |
4602 } | |
4603 #endif | |
4604 | |
4605 //------------------------------singleton-------------------------------------- | |
4606 // TRUE if Type is a singleton type, FALSE otherwise. Singletons are simple | |
4607 // constants (Ldi nodes). Singletons are integer, float or double constants | |
4608 // or a single symbol. | |
4609 bool TypeFunc::singleton(void) const { | |
4610 return false; // Never a singleton | |
4611 } | |
4612 | |
4613 bool TypeFunc::empty(void) const { | |
4614 return false; // Never empty | |
4615 } | |
4616 | |
4617 | |
4618 BasicType TypeFunc::return_type() const{ | |
4619 if (range()->cnt() == TypeFunc::Parms) { | |
4620 return T_VOID; | |
4621 } | |
4622 return range()->field_at(TypeFunc::Parms)->basic_type(); | |
4623 } |