Mercurial > hg > truffle
annotate src/share/vm/opto/type.hpp @ 14495:cd5d10655495
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Reviewed-by: kvn, iveresov
author | rbackman |
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date | Thu, 23 Jan 2014 12:08:28 +0100 |
parents | 45467c53f178 |
children | 484a359ff649 |
rev | line source |
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0 | 1 /* |
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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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_OPTO_TYPE_HPP |
26 #define SHARE_VM_OPTO_TYPE_HPP | |
27 | |
28 #include "libadt/port.hpp" | |
29 #include "opto/adlcVMDeps.hpp" | |
30 #include "runtime/handles.hpp" | |
31 | |
0 | 32 // Portions of code courtesy of Clifford Click |
33 | |
34 // Optimization - Graph Style | |
35 | |
36 | |
37 // This class defines a Type lattice. The lattice is used in the constant | |
38 // propagation algorithms, and for some type-checking of the iloc code. | |
39 // Basic types include RSD's (lower bound, upper bound, stride for integers), | |
40 // float & double precision constants, sets of data-labels and code-labels. | |
41 // The complete lattice is described below. Subtypes have no relationship to | |
42 // up or down in the lattice; that is entirely determined by the behavior of | |
43 // the MEET/JOIN functions. | |
44 | |
45 class Dict; | |
46 class Type; | |
47 class TypeD; | |
48 class TypeF; | |
49 class TypeInt; | |
50 class TypeLong; | |
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51 class TypeNarrowPtr; |
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52 class TypeNarrowOop; |
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53 class TypeNarrowKlass; |
0 | 54 class TypeAry; |
55 class TypeTuple; | |
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56 class TypeVect; |
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57 class TypeVectS; |
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58 class TypeVectD; |
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59 class TypeVectX; |
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60 class TypeVectY; |
0 | 61 class TypePtr; |
62 class TypeRawPtr; | |
63 class TypeOopPtr; | |
64 class TypeInstPtr; | |
65 class TypeAryPtr; | |
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66 class TypeKlassPtr; |
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67 class TypeMetadataPtr; |
0 | 68 |
69 //------------------------------Type------------------------------------------- | |
70 // Basic Type object, represents a set of primitive Values. | |
71 // Types are hash-cons'd into a private class dictionary, so only one of each | |
72 // different kind of Type exists. Types are never modified after creation, so | |
73 // all their interesting fields are constant. | |
74 class Type { | |
3939 | 75 friend class VMStructs; |
76 | |
0 | 77 public: |
78 enum TYPES { | |
79 Bad=0, // Type check | |
80 Control, // Control of code (not in lattice) | |
81 Top, // Top of the lattice | |
82 Int, // Integer range (lo-hi) | |
83 Long, // Long integer range (lo-hi) | |
84 Half, // Placeholder half of doubleword | |
113
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85 NarrowOop, // Compressed oop pointer |
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86 NarrowKlass, // Compressed klass pointer |
0 | 87 |
88 Tuple, // Method signature or object layout | |
89 Array, // Array types | |
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90 VectorS, // 32bit Vector types |
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91 VectorD, // 64bit Vector types |
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92 VectorX, // 128bit Vector types |
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93 VectorY, // 256bit Vector types |
0 | 94 |
95 AnyPtr, // Any old raw, klass, inst, or array pointer | |
96 RawPtr, // Raw (non-oop) pointers | |
97 OopPtr, // Any and all Java heap entities | |
98 InstPtr, // Instance pointers (non-array objects) | |
99 AryPtr, // Array pointers | |
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100 // (Ptr order matters: See is_ptr, isa_ptr, is_oopptr, isa_oopptr.) |
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101 |
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102 MetadataPtr, // Generic metadata |
0 | 103 KlassPtr, // Klass pointers |
104 | |
105 Function, // Function signature | |
106 Abio, // Abstract I/O | |
107 Return_Address, // Subroutine return address | |
108 Memory, // Abstract store | |
109 FloatTop, // No float value | |
110 FloatCon, // Floating point constant | |
111 FloatBot, // Any float value | |
112 DoubleTop, // No double value | |
113 DoubleCon, // Double precision constant | |
114 DoubleBot, // Any double value | |
115 Bottom, // Bottom of lattice | |
116 lastype // Bogus ending type (not in lattice) | |
117 }; | |
118 | |
119 // Signal values for offsets from a base pointer | |
120 enum OFFSET_SIGNALS { | |
121 OffsetTop = -2000000000, // undefined offset | |
122 OffsetBot = -2000000001 // any possible offset | |
123 }; | |
124 | |
125 // Min and max WIDEN values. | |
126 enum WIDEN { | |
127 WidenMin = 0, | |
128 WidenMax = 3 | |
129 }; | |
130 | |
131 private: | |
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132 typedef struct { |
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133 const TYPES dual_type; |
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134 const BasicType basic_type; |
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135 const char* msg; |
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136 const bool isa_oop; |
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137 const int ideal_reg; |
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138 const relocInfo::relocType reloc; |
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139 } TypeInfo; |
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140 |
0 | 141 // Dictionary of types shared among compilations. |
142 static Dict* _shared_type_dict; | |
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143 static TypeInfo _type_info[]; |
0 | 144 |
145 static int uhash( const Type *const t ); | |
146 // Structural equality check. Assumes that cmp() has already compared | |
147 // the _base types and thus knows it can cast 't' appropriately. | |
148 virtual bool eq( const Type *t ) const; | |
149 | |
150 // Top-level hash-table of types | |
151 static Dict *type_dict() { | |
152 return Compile::current()->type_dict(); | |
153 } | |
154 | |
155 // DUAL operation: reflect around lattice centerline. Used instead of | |
156 // join to ensure my lattice is symmetric up and down. Dual is computed | |
157 // lazily, on demand, and cached in _dual. | |
158 const Type *_dual; // Cached dual value | |
159 // Table for efficient dualing of base types | |
160 static const TYPES dual_type[lastype]; | |
161 | |
12966 | 162 #ifdef ASSERT |
163 // One type is interface, the other is oop | |
164 virtual bool interface_vs_oop_helper(const Type *t) const; | |
165 #endif | |
166 | |
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167 const Type *meet_helper(const Type *t, bool include_speculative) const; |
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168 |
0 | 169 protected: |
170 // Each class of type is also identified by its base. | |
171 const TYPES _base; // Enum of Types type | |
172 | |
173 Type( TYPES t ) : _dual(NULL), _base(t) {} // Simple types | |
174 // ~Type(); // Use fast deallocation | |
175 const Type *hashcons(); // Hash-cons the type | |
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176 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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177 const Type *join_helper(const Type *t, bool include_speculative) const { |
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178 return dual()->meet_helper(t->dual(), include_speculative)->dual(); |
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179 } |
0 | 180 |
181 public: | |
182 | |
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183 inline void* operator new( size_t x ) throw() { |
0 | 184 Compile* compile = Compile::current(); |
185 compile->set_type_last_size(x); | |
186 void *temp = compile->type_arena()->Amalloc_D(x); | |
187 compile->set_type_hwm(temp); | |
188 return temp; | |
189 } | |
190 inline void operator delete( void* ptr ) { | |
191 Compile* compile = Compile::current(); | |
192 compile->type_arena()->Afree(ptr,compile->type_last_size()); | |
193 } | |
194 | |
195 // Initialize the type system for a particular compilation. | |
196 static void Initialize(Compile* compile); | |
197 | |
198 // Initialize the types shared by all compilations. | |
199 static void Initialize_shared(Compile* compile); | |
200 | |
201 TYPES base() const { | |
202 assert(_base > Bad && _base < lastype, "sanity"); | |
203 return _base; | |
204 } | |
205 | |
206 // Create a new hash-consd type | |
207 static const Type *make(enum TYPES); | |
208 // Test for equivalence of types | |
209 static int cmp( const Type *const t1, const Type *const t2 ); | |
210 // Test for higher or equal in lattice | |
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211 // Variant that drops the speculative part of the types |
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212 int higher_equal(const Type *t) const { |
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213 return !cmp(meet(t),t->remove_speculative()); |
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214 } |
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215 // Variant that keeps the speculative part of the types |
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216 int higher_equal_speculative(const Type *t) const { |
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217 return !cmp(meet_speculative(t),t); |
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218 } |
0 | 219 |
220 // MEET operation; lower in lattice. | |
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221 // Variant that drops the speculative part of the types |
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222 const Type *meet(const Type *t) const { |
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223 return meet_helper(t, false); |
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224 } |
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225 // Variant that keeps the speculative part of the types |
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226 const Type *meet_speculative(const Type *t) const { |
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227 return meet_helper(t, true); |
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228 } |
0 | 229 // WIDEN: 'widens' for Ints and other range types |
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230 virtual const Type *widen( const Type *old, const Type* limit ) const { return this; } |
0 | 231 // NARROW: complement for widen, used by pessimistic phases |
232 virtual const Type *narrow( const Type *old ) const { return this; } | |
233 | |
234 // DUAL operation: reflect around lattice centerline. Used instead of | |
235 // join to ensure my lattice is symmetric up and down. | |
236 const Type *dual() const { return _dual; } | |
237 | |
238 // Compute meet dependent on base type | |
239 virtual const Type *xmeet( const Type *t ) const; | |
240 virtual const Type *xdual() const; // Compute dual right now. | |
241 | |
242 // JOIN operation; higher in lattice. Done by finding the dual of the | |
243 // meet of the dual of the 2 inputs. | |
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244 // Variant that drops the speculative part of the types |
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245 const Type *join(const Type *t) const { |
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246 return join_helper(t, false); |
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247 } |
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248 // Variant that keeps the speculative part of the types |
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249 const Type *join_speculative(const Type *t) const { |
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250 return join_helper(t, true); |
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251 } |
0 | 252 |
253 // Modified version of JOIN adapted to the needs Node::Value. | |
254 // Normalizes all empty values to TOP. Does not kill _widen bits. | |
255 // Currently, it also works around limitations involving interface types. | |
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256 // Variant that drops the speculative part of the types |
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257 const Type *filter(const Type *kills) const { |
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258 return filter_helper(kills, false); |
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259 } |
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260 // Variant that keeps the speculative part of the types |
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261 const Type *filter_speculative(const Type *kills) const { |
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262 return filter_helper(kills, true); |
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263 } |
0 | 264 |
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265 #ifdef ASSERT |
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266 // One type is interface, the other is oop |
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267 virtual bool interface_vs_oop(const Type *t) const; |
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268 #endif |
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269 |
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270 // Returns true if this pointer points at memory which contains a |
163 | 271 // compressed oop references. |
272 bool is_ptr_to_narrowoop() const; | |
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273 bool is_ptr_to_narrowklass() const; |
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274 |
10278 | 275 bool is_ptr_to_boxing_obj() const; |
276 | |
277 | |
0 | 278 // Convenience access |
279 float getf() const; | |
280 double getd() const; | |
281 | |
282 const TypeInt *is_int() const; | |
283 const TypeInt *isa_int() const; // Returns NULL if not an Int | |
284 const TypeLong *is_long() const; | |
285 const TypeLong *isa_long() const; // Returns NULL if not a Long | |
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286 const TypeD *isa_double() const; // Returns NULL if not a Double{Top,Con,Bot} |
0 | 287 const TypeD *is_double_constant() const; // Asserts it is a DoubleCon |
288 const TypeD *isa_double_constant() const; // Returns NULL if not a DoubleCon | |
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289 const TypeF *isa_float() const; // Returns NULL if not a Float{Top,Con,Bot} |
0 | 290 const TypeF *is_float_constant() const; // Asserts it is a FloatCon |
291 const TypeF *isa_float_constant() const; // Returns NULL if not a FloatCon | |
292 const TypeTuple *is_tuple() const; // Collection of fields, NOT a pointer | |
293 const TypeAry *is_ary() const; // Array, NOT array pointer | |
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294 const TypeVect *is_vect() const; // Vector |
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295 const TypeVect *isa_vect() const; // Returns NULL if not a Vector |
0 | 296 const TypePtr *is_ptr() const; // Asserts it is a ptr type |
297 const TypePtr *isa_ptr() const; // Returns NULL if not ptr type | |
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298 const TypeRawPtr *isa_rawptr() const; // NOT Java oop |
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299 const TypeRawPtr *is_rawptr() const; // Asserts is rawptr |
163 | 300 const TypeNarrowOop *is_narrowoop() const; // Java-style GC'd pointer |
301 const TypeNarrowOop *isa_narrowoop() const; // Returns NULL if not oop ptr type | |
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302 const TypeNarrowKlass *is_narrowklass() const; // compressed klass pointer |
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303 const TypeNarrowKlass *isa_narrowklass() const;// Returns NULL if not oop ptr type |
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304 const TypeOopPtr *isa_oopptr() const; // Returns NULL if not oop ptr type |
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305 const TypeOopPtr *is_oopptr() const; // Java-style GC'd pointer |
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306 const TypeInstPtr *isa_instptr() const; // Returns NULL if not InstPtr |
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307 const TypeInstPtr *is_instptr() const; // Instance |
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308 const TypeAryPtr *isa_aryptr() const; // Returns NULL if not AryPtr |
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309 const TypeAryPtr *is_aryptr() const; // Array oop |
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310 |
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311 const TypeMetadataPtr *isa_metadataptr() const; // Returns NULL if not oop ptr type |
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312 const TypeMetadataPtr *is_metadataptr() const; // Java-style GC'd pointer |
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313 const TypeKlassPtr *isa_klassptr() const; // Returns NULL if not KlassPtr |
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314 const TypeKlassPtr *is_klassptr() const; // assert if not KlassPtr |
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315 |
0 | 316 virtual bool is_finite() const; // Has a finite value |
317 virtual bool is_nan() const; // Is not a number (NaN) | |
318 | |
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319 // Returns this ptr type or the equivalent ptr type for this compressed pointer. |
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320 const TypePtr* make_ptr() const; |
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321 |
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322 // Returns this oopptr type or the equivalent oopptr type for this compressed pointer. |
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323 // Asserts if the underlying type is not an oopptr or narrowoop. |
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324 const TypeOopPtr* make_oopptr() const; |
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325 |
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326 // Returns this compressed pointer or the equivalent compressed version |
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327 // of this pointer type. |
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328 const TypeNarrowOop* make_narrowoop() const; |
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329 |
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330 // Returns this compressed klass pointer or the equivalent |
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331 // compressed version of this pointer type. |
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332 const TypeNarrowKlass* make_narrowklass() const; |
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333 |
0 | 334 // Special test for register pressure heuristic |
335 bool is_floatingpoint() const; // True if Float or Double base type | |
336 | |
337 // Do you have memory, directly or through a tuple? | |
338 bool has_memory( ) const; | |
339 | |
340 // TRUE if type is a singleton | |
341 virtual bool singleton(void) const; | |
342 | |
343 // TRUE if type is above the lattice centerline, and is therefore vacuous | |
344 virtual bool empty(void) const; | |
345 | |
346 // Return a hash for this type. The hash function is public so ConNode | |
347 // (constants) can hash on their constant, which is represented by a Type. | |
348 virtual int hash() const; | |
349 | |
350 // Map ideal registers (machine types) to ideal types | |
351 static const Type *mreg2type[]; | |
352 | |
353 // Printing, statistics | |
354 #ifndef PRODUCT | |
355 void dump_on(outputStream *st) const; | |
356 void dump() const { | |
357 dump_on(tty); | |
358 } | |
359 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
360 static void dump_stats(); | |
361 #endif | |
362 void typerr(const Type *t) const; // Mixing types error | |
363 | |
364 // Create basic type | |
365 static const Type* get_const_basic_type(BasicType type) { | |
366 assert((uint)type <= T_CONFLICT && _const_basic_type[type] != NULL, "bad type"); | |
367 return _const_basic_type[type]; | |
368 } | |
369 | |
370 // Mapping to the array element's basic type. | |
371 BasicType array_element_basic_type() const; | |
372 | |
373 // Create standard type for a ciType: | |
374 static const Type* get_const_type(ciType* type); | |
375 | |
376 // Create standard zero value: | |
377 static const Type* get_zero_type(BasicType type) { | |
378 assert((uint)type <= T_CONFLICT && _zero_type[type] != NULL, "bad type"); | |
379 return _zero_type[type]; | |
380 } | |
381 | |
382 // Report if this is a zero value (not top). | |
383 bool is_zero_type() const { | |
384 BasicType type = basic_type(); | |
385 if (type == T_VOID || type >= T_CONFLICT) | |
386 return false; | |
387 else | |
388 return (this == _zero_type[type]); | |
389 } | |
390 | |
391 // Convenience common pre-built types. | |
392 static const Type *ABIO; | |
393 static const Type *BOTTOM; | |
394 static const Type *CONTROL; | |
395 static const Type *DOUBLE; | |
396 static const Type *FLOAT; | |
397 static const Type *HALF; | |
398 static const Type *MEMORY; | |
399 static const Type *MULTI; | |
400 static const Type *RETURN_ADDRESS; | |
401 static const Type *TOP; | |
402 | |
403 // Mapping from compiler type to VM BasicType | |
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404 BasicType basic_type() const { return _type_info[_base].basic_type; } |
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405 int ideal_reg() const { return _type_info[_base].ideal_reg; } |
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406 const char* msg() const { return _type_info[_base].msg; } |
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407 bool isa_oop_ptr() const { return _type_info[_base].isa_oop; } |
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408 relocInfo::relocType reloc() const { return _type_info[_base].reloc; } |
0 | 409 |
410 // Mapping from CI type system to compiler type: | |
411 static const Type* get_typeflow_type(ciType* type); | |
412 | |
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413 static const Type* make_from_constant(ciConstant constant, |
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414 bool require_constant = false, |
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415 bool is_autobox_cache = false); |
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416 |
12966 | 417 // Speculative type. See TypeInstPtr |
418 virtual ciKlass* speculative_type() const { return NULL; } | |
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419 const Type* maybe_remove_speculative(bool include_speculative) const; |
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420 virtual const Type* remove_speculative() const { return this; } |
12966 | 421 |
0 | 422 private: |
423 // support arrays | |
424 static const BasicType _basic_type[]; | |
425 static const Type* _zero_type[T_CONFLICT+1]; | |
426 static const Type* _const_basic_type[T_CONFLICT+1]; | |
427 }; | |
428 | |
429 //------------------------------TypeF------------------------------------------ | |
430 // Class of Float-Constant Types. | |
431 class TypeF : public Type { | |
432 TypeF( float f ) : Type(FloatCon), _f(f) {}; | |
433 public: | |
434 virtual bool eq( const Type *t ) const; | |
435 virtual int hash() const; // Type specific hashing | |
436 virtual bool singleton(void) const; // TRUE if type is a singleton | |
437 virtual bool empty(void) const; // TRUE if type is vacuous | |
438 public: | |
439 const float _f; // Float constant | |
440 | |
441 static const TypeF *make(float f); | |
442 | |
443 virtual bool is_finite() const; // Has a finite value | |
444 virtual bool is_nan() const; // Is not a number (NaN) | |
445 | |
446 virtual const Type *xmeet( const Type *t ) const; | |
447 virtual const Type *xdual() const; // Compute dual right now. | |
448 // Convenience common pre-built types. | |
449 static const TypeF *ZERO; // positive zero only | |
450 static const TypeF *ONE; | |
451 #ifndef PRODUCT | |
452 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
453 #endif | |
454 }; | |
455 | |
456 //------------------------------TypeD------------------------------------------ | |
457 // Class of Double-Constant Types. | |
458 class TypeD : public Type { | |
459 TypeD( double d ) : Type(DoubleCon), _d(d) {}; | |
460 public: | |
461 virtual bool eq( const Type *t ) const; | |
462 virtual int hash() const; // Type specific hashing | |
463 virtual bool singleton(void) const; // TRUE if type is a singleton | |
464 virtual bool empty(void) const; // TRUE if type is vacuous | |
465 public: | |
466 const double _d; // Double constant | |
467 | |
468 static const TypeD *make(double d); | |
469 | |
470 virtual bool is_finite() const; // Has a finite value | |
471 virtual bool is_nan() const; // Is not a number (NaN) | |
472 | |
473 virtual const Type *xmeet( const Type *t ) const; | |
474 virtual const Type *xdual() const; // Compute dual right now. | |
475 // Convenience common pre-built types. | |
476 static const TypeD *ZERO; // positive zero only | |
477 static const TypeD *ONE; | |
478 #ifndef PRODUCT | |
479 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
480 #endif | |
481 }; | |
482 | |
483 //------------------------------TypeInt---------------------------------------- | |
484 // Class of integer ranges, the set of integers between a lower bound and an | |
485 // upper bound, inclusive. | |
486 class TypeInt : public Type { | |
487 TypeInt( jint lo, jint hi, int w ); | |
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488 protected: |
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489 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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490 |
0 | 491 public: |
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492 typedef jint NativeType; |
0 | 493 virtual bool eq( const Type *t ) const; |
494 virtual int hash() const; // Type specific hashing | |
495 virtual bool singleton(void) const; // TRUE if type is a singleton | |
496 virtual bool empty(void) const; // TRUE if type is vacuous | |
497 const jint _lo, _hi; // Lower bound, upper bound | |
498 const short _widen; // Limit on times we widen this sucker | |
499 | |
500 static const TypeInt *make(jint lo); | |
501 // must always specify w | |
502 static const TypeInt *make(jint lo, jint hi, int w); | |
503 | |
504 // Check for single integer | |
505 int is_con() const { return _lo==_hi; } | |
506 bool is_con(int i) const { return is_con() && _lo == i; } | |
507 jint get_con() const { assert( is_con(), "" ); return _lo; } | |
508 | |
509 virtual bool is_finite() const; // Has a finite value | |
510 | |
511 virtual const Type *xmeet( const Type *t ) const; | |
512 virtual const Type *xdual() const; // Compute dual right now. | |
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513 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
0 | 514 virtual const Type *narrow( const Type *t ) const; |
515 // Do not kill _widen bits. | |
516 // Convenience common pre-built types. | |
517 static const TypeInt *MINUS_1; | |
518 static const TypeInt *ZERO; | |
519 static const TypeInt *ONE; | |
520 static const TypeInt *BOOL; | |
521 static const TypeInt *CC; | |
522 static const TypeInt *CC_LT; // [-1] == MINUS_1 | |
523 static const TypeInt *CC_GT; // [1] == ONE | |
524 static const TypeInt *CC_EQ; // [0] == ZERO | |
525 static const TypeInt *CC_LE; // [-1,0] | |
526 static const TypeInt *CC_GE; // [0,1] == BOOL (!) | |
527 static const TypeInt *BYTE; | |
624 | 528 static const TypeInt *UBYTE; |
0 | 529 static const TypeInt *CHAR; |
530 static const TypeInt *SHORT; | |
531 static const TypeInt *POS; | |
532 static const TypeInt *POS1; | |
533 static const TypeInt *INT; | |
534 static const TypeInt *SYMINT; // symmetric range [-max_jint..max_jint] | |
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535 static const TypeInt *TYPE_DOMAIN; // alias for TypeInt::INT |
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536 |
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537 static const TypeInt *as_self(const Type *t) { return t->is_int(); } |
0 | 538 #ifndef PRODUCT |
539 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
540 #endif | |
541 }; | |
542 | |
543 | |
544 //------------------------------TypeLong--------------------------------------- | |
545 // Class of long integer ranges, the set of integers between a lower bound and | |
546 // an upper bound, inclusive. | |
547 class TypeLong : public Type { | |
548 TypeLong( jlong lo, jlong hi, int w ); | |
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549 protected: |
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550 // Do not kill _widen bits. |
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551 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
0 | 552 public: |
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553 typedef jlong NativeType; |
0 | 554 virtual bool eq( const Type *t ) const; |
555 virtual int hash() const; // Type specific hashing | |
556 virtual bool singleton(void) const; // TRUE if type is a singleton | |
557 virtual bool empty(void) const; // TRUE if type is vacuous | |
558 public: | |
559 const jlong _lo, _hi; // Lower bound, upper bound | |
560 const short _widen; // Limit on times we widen this sucker | |
561 | |
562 static const TypeLong *make(jlong lo); | |
563 // must always specify w | |
564 static const TypeLong *make(jlong lo, jlong hi, int w); | |
565 | |
566 // Check for single integer | |
567 int is_con() const { return _lo==_hi; } | |
145 | 568 bool is_con(int i) const { return is_con() && _lo == i; } |
0 | 569 jlong get_con() const { assert( is_con(), "" ); return _lo; } |
570 | |
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571 // Check for positive 32-bit value. |
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572 int is_positive_int() const { return _lo >= 0 && _hi <= (jlong)max_jint; } |
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573 |
0 | 574 virtual bool is_finite() const; // Has a finite value |
575 | |
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576 |
0 | 577 virtual const Type *xmeet( const Type *t ) const; |
578 virtual const Type *xdual() const; // Compute dual right now. | |
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579 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
0 | 580 virtual const Type *narrow( const Type *t ) const; |
581 // Convenience common pre-built types. | |
582 static const TypeLong *MINUS_1; | |
583 static const TypeLong *ZERO; | |
584 static const TypeLong *ONE; | |
585 static const TypeLong *POS; | |
586 static const TypeLong *LONG; | |
587 static const TypeLong *INT; // 32-bit subrange [min_jint..max_jint] | |
588 static const TypeLong *UINT; // 32-bit unsigned [0..max_juint] | |
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589 static const TypeLong *TYPE_DOMAIN; // alias for TypeLong::LONG |
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590 |
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591 // static convenience methods. |
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592 static const TypeLong *as_self(const Type *t) { return t->is_long(); } |
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593 |
0 | 594 #ifndef PRODUCT |
595 virtual void dump2( Dict &d, uint, outputStream *st ) const;// Specialized per-Type dumping | |
596 #endif | |
597 }; | |
598 | |
599 //------------------------------TypeTuple-------------------------------------- | |
600 // Class of Tuple Types, essentially type collections for function signatures | |
601 // and class layouts. It happens to also be a fast cache for the HotSpot | |
602 // signature types. | |
603 class TypeTuple : public Type { | |
604 TypeTuple( uint cnt, const Type **fields ) : Type(Tuple), _cnt(cnt), _fields(fields) { } | |
605 public: | |
606 virtual bool eq( const Type *t ) const; | |
607 virtual int hash() const; // Type specific hashing | |
608 virtual bool singleton(void) const; // TRUE if type is a singleton | |
609 virtual bool empty(void) const; // TRUE if type is vacuous | |
610 | |
611 public: | |
612 const uint _cnt; // Count of fields | |
613 const Type ** const _fields; // Array of field types | |
614 | |
615 // Accessors: | |
616 uint cnt() const { return _cnt; } | |
617 const Type* field_at(uint i) const { | |
618 assert(i < _cnt, "oob"); | |
619 return _fields[i]; | |
620 } | |
621 void set_field_at(uint i, const Type* t) { | |
622 assert(i < _cnt, "oob"); | |
623 _fields[i] = t; | |
624 } | |
625 | |
626 static const TypeTuple *make( uint cnt, const Type **fields ); | |
627 static const TypeTuple *make_range(ciSignature *sig); | |
628 static const TypeTuple *make_domain(ciInstanceKlass* recv, ciSignature *sig); | |
629 | |
630 // Subroutine call type with space allocated for argument types | |
631 static const Type **fields( uint arg_cnt ); | |
632 | |
633 virtual const Type *xmeet( const Type *t ) const; | |
634 virtual const Type *xdual() const; // Compute dual right now. | |
635 // Convenience common pre-built types. | |
636 static const TypeTuple *IFBOTH; | |
637 static const TypeTuple *IFFALSE; | |
638 static const TypeTuple *IFTRUE; | |
639 static const TypeTuple *IFNEITHER; | |
640 static const TypeTuple *LOOPBODY; | |
641 static const TypeTuple *MEMBAR; | |
642 static const TypeTuple *STORECONDITIONAL; | |
643 static const TypeTuple *START_I2C; | |
644 static const TypeTuple *INT_PAIR; | |
645 static const TypeTuple *LONG_PAIR; | |
12323 | 646 static const TypeTuple *INT_CC_PAIR; |
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647 static const TypeTuple *LONG_CC_PAIR; |
0 | 648 #ifndef PRODUCT |
649 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
650 #endif | |
651 }; | |
652 | |
653 //------------------------------TypeAry---------------------------------------- | |
654 // Class of Array Types | |
655 class TypeAry : public Type { | |
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656 TypeAry(const Type* elem, const TypeInt* size, bool stable) : Type(Array), |
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657 _elem(elem), _size(size), _stable(stable) {} |
0 | 658 public: |
659 virtual bool eq( const Type *t ) const; | |
660 virtual int hash() const; // Type specific hashing | |
661 virtual bool singleton(void) const; // TRUE if type is a singleton | |
662 virtual bool empty(void) const; // TRUE if type is vacuous | |
663 | |
664 private: | |
665 const Type *_elem; // Element type of array | |
666 const TypeInt *_size; // Elements in array | |
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667 const bool _stable; // Are elements @Stable? |
0 | 668 friend class TypeAryPtr; |
669 | |
670 public: | |
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671 static const TypeAry* make(const Type* elem, const TypeInt* size, bool stable = false); |
0 | 672 |
673 virtual const Type *xmeet( const Type *t ) const; | |
674 virtual const Type *xdual() const; // Compute dual right now. | |
675 bool ary_must_be_exact() const; // true if arrays of such are never generic | |
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676 virtual const Type* remove_speculative() const; |
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677 #ifdef ASSERT |
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678 // One type is interface, the other is oop |
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679 virtual bool interface_vs_oop(const Type *t) const; |
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680 #endif |
0 | 681 #ifndef PRODUCT |
682 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
683 #endif | |
684 }; | |
685 | |
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686 //------------------------------TypeVect--------------------------------------- |
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687 // Class of Vector Types |
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688 class TypeVect : public Type { |
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689 const Type* _elem; // Vector's element type |
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690 const uint _length; // Elements in vector (power of 2) |
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691 |
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692 protected: |
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693 TypeVect(TYPES t, const Type* elem, uint length) : Type(t), |
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694 _elem(elem), _length(length) {} |
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695 |
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696 public: |
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697 const Type* element_type() const { return _elem; } |
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698 BasicType element_basic_type() const { return _elem->array_element_basic_type(); } |
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699 uint length() const { return _length; } |
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700 uint length_in_bytes() const { |
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701 return _length * type2aelembytes(element_basic_type()); |
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702 } |
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703 |
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704 virtual bool eq(const Type *t) const; |
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705 virtual int hash() const; // Type specific hashing |
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706 virtual bool singleton(void) const; // TRUE if type is a singleton |
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707 virtual bool empty(void) const; // TRUE if type is vacuous |
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708 |
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709 static const TypeVect *make(const BasicType elem_bt, uint length) { |
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710 // Use bottom primitive type. |
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711 return make(get_const_basic_type(elem_bt), length); |
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712 } |
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713 // Used directly by Replicate nodes to construct singleton vector. |
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714 static const TypeVect *make(const Type* elem, uint length); |
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715 |
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716 virtual const Type *xmeet( const Type *t) const; |
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717 virtual const Type *xdual() const; // Compute dual right now. |
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718 |
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719 static const TypeVect *VECTS; |
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720 static const TypeVect *VECTD; |
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721 static const TypeVect *VECTX; |
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722 static const TypeVect *VECTY; |
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723 |
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724 #ifndef PRODUCT |
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725 virtual void dump2(Dict &d, uint, outputStream *st) const; // Specialized per-Type dumping |
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726 #endif |
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727 }; |
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728 |
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729 class TypeVectS : public TypeVect { |
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730 friend class TypeVect; |
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731 TypeVectS(const Type* elem, uint length) : TypeVect(VectorS, elem, length) {} |
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732 }; |
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733 |
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734 class TypeVectD : public TypeVect { |
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735 friend class TypeVect; |
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736 TypeVectD(const Type* elem, uint length) : TypeVect(VectorD, elem, length) {} |
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737 }; |
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738 |
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739 class TypeVectX : public TypeVect { |
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740 friend class TypeVect; |
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741 TypeVectX(const Type* elem, uint length) : TypeVect(VectorX, elem, length) {} |
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742 }; |
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743 |
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744 class TypeVectY : public TypeVect { |
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745 friend class TypeVect; |
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746 TypeVectY(const Type* elem, uint length) : TypeVect(VectorY, elem, length) {} |
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747 }; |
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748 |
0 | 749 //------------------------------TypePtr---------------------------------------- |
750 // Class of machine Pointer Types: raw data, instances or arrays. | |
751 // If the _base enum is AnyPtr, then this refers to all of the above. | |
752 // Otherwise the _base will indicate which subset of pointers is affected, | |
753 // and the class will be inherited from. | |
754 class TypePtr : public Type { | |
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755 friend class TypeNarrowPtr; |
0 | 756 public: |
757 enum PTR { TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, lastPTR }; | |
758 protected: | |
759 TypePtr( TYPES t, PTR ptr, int offset ) : Type(t), _ptr(ptr), _offset(offset) {} | |
760 virtual bool eq( const Type *t ) const; | |
761 virtual int hash() const; // Type specific hashing | |
762 static const PTR ptr_meet[lastPTR][lastPTR]; | |
763 static const PTR ptr_dual[lastPTR]; | |
764 static const char * const ptr_msg[lastPTR]; | |
765 | |
766 public: | |
767 const int _offset; // Offset into oop, with TOP & BOT | |
768 const PTR _ptr; // Pointer equivalence class | |
769 | |
770 const int offset() const { return _offset; } | |
771 const PTR ptr() const { return _ptr; } | |
772 | |
773 static const TypePtr *make( TYPES t, PTR ptr, int offset ); | |
774 | |
775 // Return a 'ptr' version of this type | |
776 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
777 | |
778 virtual intptr_t get_con() const; | |
779 | |
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780 int xadd_offset( intptr_t offset ) const; |
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781 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 782 |
783 virtual bool singleton(void) const; // TRUE if type is a singleton | |
784 virtual bool empty(void) const; // TRUE if type is vacuous | |
785 virtual const Type *xmeet( const Type *t ) const; | |
786 int meet_offset( int offset ) const; | |
787 int dual_offset( ) const; | |
788 virtual const Type *xdual() const; // Compute dual right now. | |
789 | |
790 // meet, dual and join over pointer equivalence sets | |
791 PTR meet_ptr( const PTR in_ptr ) const { return ptr_meet[in_ptr][ptr()]; } | |
792 PTR dual_ptr() const { return ptr_dual[ptr()]; } | |
793 | |
794 // This is textually confusing unless one recalls that | |
795 // join(t) == dual()->meet(t->dual())->dual(). | |
796 PTR join_ptr( const PTR in_ptr ) const { | |
797 return ptr_dual[ ptr_meet[ ptr_dual[in_ptr] ] [ dual_ptr() ] ]; | |
798 } | |
799 | |
800 // Tests for relation to centerline of type lattice: | |
801 static bool above_centerline(PTR ptr) { return (ptr <= AnyNull); } | |
802 static bool below_centerline(PTR ptr) { return (ptr >= NotNull); } | |
803 // Convenience common pre-built types. | |
804 static const TypePtr *NULL_PTR; | |
805 static const TypePtr *NOTNULL; | |
806 static const TypePtr *BOTTOM; | |
807 #ifndef PRODUCT | |
808 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
809 #endif | |
810 }; | |
811 | |
812 //------------------------------TypeRawPtr------------------------------------- | |
813 // Class of raw pointers, pointers to things other than Oops. Examples | |
814 // include the stack pointer, top of heap, card-marking area, handles, etc. | |
815 class TypeRawPtr : public TypePtr { | |
816 protected: | |
817 TypeRawPtr( PTR ptr, address bits ) : TypePtr(RawPtr,ptr,0), _bits(bits){} | |
818 public: | |
819 virtual bool eq( const Type *t ) const; | |
820 virtual int hash() const; // Type specific hashing | |
821 | |
822 const address _bits; // Constant value, if applicable | |
823 | |
824 static const TypeRawPtr *make( PTR ptr ); | |
825 static const TypeRawPtr *make( address bits ); | |
826 | |
827 // Return a 'ptr' version of this type | |
828 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
829 | |
830 virtual intptr_t get_con() const; | |
831 | |
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832 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 833 |
834 virtual const Type *xmeet( const Type *t ) const; | |
835 virtual const Type *xdual() const; // Compute dual right now. | |
836 // Convenience common pre-built types. | |
837 static const TypeRawPtr *BOTTOM; | |
838 static const TypeRawPtr *NOTNULL; | |
839 #ifndef PRODUCT | |
840 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
841 #endif | |
842 }; | |
843 | |
844 //------------------------------TypeOopPtr------------------------------------- | |
845 // Some kind of oop (Java pointer), either klass or instance or array. | |
846 class TypeOopPtr : public TypePtr { | |
847 protected: | |
12966 | 848 TypeOopPtr(TYPES t, PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id, const TypeOopPtr* speculative); |
0 | 849 public: |
850 virtual bool eq( const Type *t ) const; | |
851 virtual int hash() const; // Type specific hashing | |
852 virtual bool singleton(void) const; // TRUE if type is a singleton | |
853 enum { | |
223 | 854 InstanceTop = -1, // undefined instance |
855 InstanceBot = 0 // any possible instance | |
0 | 856 }; |
857 protected: | |
858 | |
859 // Oop is NULL, unless this is a constant oop. | |
860 ciObject* _const_oop; // Constant oop | |
861 // If _klass is NULL, then so is _sig. This is an unloaded klass. | |
862 ciKlass* _klass; // Klass object | |
863 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) | |
864 bool _klass_is_exact; | |
163 | 865 bool _is_ptr_to_narrowoop; |
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866 bool _is_ptr_to_narrowklass; |
10278 | 867 bool _is_ptr_to_boxed_value; |
0 | 868 |
223 | 869 // If not InstanceTop or InstanceBot, indicates that this is |
870 // a particular instance of this type which is distinct. | |
871 // This is the the node index of the allocation node creating this instance. | |
872 int _instance_id; | |
0 | 873 |
12966 | 874 // Extra type information profiling gave us. We propagate it the |
875 // same way the rest of the type info is propagated. If we want to | |
876 // use it, then we have to emit a guard: this part of the type is | |
877 // not something we know but something we speculate about the type. | |
878 const TypeOopPtr* _speculative; | |
879 | |
0 | 880 static const TypeOopPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); |
881 | |
223 | 882 int dual_instance_id() const; |
883 int meet_instance_id(int uid) const; | |
0 | 884 |
12966 | 885 // utility methods to work on the speculative part of the type |
886 const TypeOopPtr* dual_speculative() const; | |
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887 const TypeOopPtr* xmeet_speculative(const TypeOopPtr* other) const; |
12966 | 888 bool eq_speculative(const TypeOopPtr* other) const; |
889 int hash_speculative() const; | |
890 const TypeOopPtr* add_offset_speculative(intptr_t offset) const; | |
891 #ifndef PRODUCT | |
892 void dump_speculative(outputStream *st) const; | |
893 #endif | |
894 | |
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895 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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896 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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897 |
0 | 898 public: |
899 // Creates a type given a klass. Correctly handles multi-dimensional arrays | |
900 // Respects UseUniqueSubclasses. | |
901 // If the klass is final, the resulting type will be exact. | |
902 static const TypeOopPtr* make_from_klass(ciKlass* klass) { | |
903 return make_from_klass_common(klass, true, false); | |
904 } | |
905 // Same as before, but will produce an exact type, even if | |
906 // the klass is not final, as long as it has exactly one implementation. | |
907 static const TypeOopPtr* make_from_klass_unique(ciKlass* klass) { | |
908 return make_from_klass_common(klass, true, true); | |
909 } | |
910 // Same as before, but does not respects UseUniqueSubclasses. | |
911 // Use this only for creating array element types. | |
912 static const TypeOopPtr* make_from_klass_raw(ciKlass* klass) { | |
913 return make_from_klass_common(klass, false, false); | |
914 } | |
915 // Creates a singleton type given an object. | |
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916 // If the object cannot be rendered as a constant, |
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917 // may return a non-singleton type. |
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918 // If require_constant, produce a NULL if a singleton is not possible. |
10278 | 919 static const TypeOopPtr* make_from_constant(ciObject* o, |
920 bool require_constant = false, | |
921 bool not_null_elements = false); | |
0 | 922 |
923 // Make a generic (unclassed) pointer to an oop. | |
12966 | 924 static const TypeOopPtr* make(PTR ptr, int offset, int instance_id, const TypeOopPtr* speculative); |
0 | 925 |
926 ciObject* const_oop() const { return _const_oop; } | |
927 virtual ciKlass* klass() const { return _klass; } | |
928 bool klass_is_exact() const { return _klass_is_exact; } | |
163 | 929 |
930 // Returns true if this pointer points at memory which contains a | |
931 // compressed oop references. | |
932 bool is_ptr_to_narrowoop_nv() const { return _is_ptr_to_narrowoop; } | |
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933 bool is_ptr_to_narrowklass_nv() const { return _is_ptr_to_narrowklass; } |
10278 | 934 bool is_ptr_to_boxed_value() const { return _is_ptr_to_boxed_value; } |
223 | 935 bool is_known_instance() const { return _instance_id > 0; } |
936 int instance_id() const { return _instance_id; } | |
937 bool is_known_instance_field() const { return is_known_instance() && _offset >= 0; } | |
12966 | 938 const TypeOopPtr* speculative() const { return _speculative; } |
0 | 939 |
940 virtual intptr_t get_con() const; | |
941 | |
942 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
943 | |
944 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
945 | |
223 | 946 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
0 | 947 |
948 // corresponding pointer to klass, for a given instance | |
949 const TypeKlassPtr* as_klass_type() const; | |
950 | |
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951 virtual const TypePtr *add_offset( intptr_t offset ) const; |
12966 | 952 // Return same type without a speculative part |
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953 virtual const Type* remove_speculative() const; |
0 | 954 |
12966 | 955 virtual const Type *xmeet(const Type *t) const; |
0 | 956 virtual const Type *xdual() const; // Compute dual right now. |
12966 | 957 // the core of the computation of the meet for TypeOopPtr and for its subclasses |
958 virtual const Type *xmeet_helper(const Type *t) const; | |
0 | 959 |
960 // Convenience common pre-built type. | |
961 static const TypeOopPtr *BOTTOM; | |
962 #ifndef PRODUCT | |
963 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
964 #endif | |
12966 | 965 |
966 // Return the speculative type if any | |
967 ciKlass* speculative_type() const { | |
968 if (_speculative != NULL) { | |
969 const TypeOopPtr* speculative = _speculative->join(this)->is_oopptr(); | |
970 if (speculative->klass_is_exact()) { | |
971 return speculative->klass(); | |
972 } | |
973 } | |
974 return NULL; | |
975 } | |
0 | 976 }; |
977 | |
978 //------------------------------TypeInstPtr------------------------------------ | |
979 // Class of Java object pointers, pointing either to non-array Java instances | |
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980 // or to a Klass* (including array klasses). |
0 | 981 class TypeInstPtr : public TypeOopPtr { |
12966 | 982 TypeInstPtr(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id, const TypeOopPtr* speculative); |
0 | 983 virtual bool eq( const Type *t ) const; |
984 virtual int hash() const; // Type specific hashing | |
985 | |
986 ciSymbol* _name; // class name | |
987 | |
988 public: | |
989 ciSymbol* name() const { return _name; } | |
990 | |
991 bool is_loaded() const { return _klass->is_loaded(); } | |
992 | |
993 // Make a pointer to a constant oop. | |
994 static const TypeInstPtr *make(ciObject* o) { | |
12966 | 995 return make(TypePtr::Constant, o->klass(), true, o, 0, InstanceBot); |
0 | 996 } |
997 // Make a pointer to a constant oop with offset. | |
998 static const TypeInstPtr *make(ciObject* o, int offset) { | |
12966 | 999 return make(TypePtr::Constant, o->klass(), true, o, offset, InstanceBot); |
0 | 1000 } |
1001 | |
1002 // Make a pointer to some value of type klass. | |
1003 static const TypeInstPtr *make(PTR ptr, ciKlass* klass) { | |
12966 | 1004 return make(ptr, klass, false, NULL, 0, InstanceBot); |
0 | 1005 } |
1006 | |
1007 // Make a pointer to some non-polymorphic value of exactly type klass. | |
1008 static const TypeInstPtr *make_exact(PTR ptr, ciKlass* klass) { | |
12966 | 1009 return make(ptr, klass, true, NULL, 0, InstanceBot); |
0 | 1010 } |
1011 | |
1012 // Make a pointer to some value of type klass with offset. | |
1013 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, int offset) { | |
12966 | 1014 return make(ptr, klass, false, NULL, offset, InstanceBot); |
0 | 1015 } |
1016 | |
1017 // Make a pointer to an oop. | |
12966 | 1018 static const TypeInstPtr *make(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id = InstanceBot, const TypeOopPtr* speculative = NULL); |
0 | 1019 |
10278 | 1020 /** Create constant type for a constant boxed value */ |
1021 const Type* get_const_boxed_value() const; | |
1022 | |
0 | 1023 // If this is a java.lang.Class constant, return the type for it or NULL. |
1024 // Pass to Type::get_const_type to turn it to a type, which will usually | |
1025 // be a TypeInstPtr, but may also be a TypeInt::INT for int.class, etc. | |
1026 ciType* java_mirror_type() const; | |
1027 | |
1028 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
1029 | |
1030 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
1031 | |
223 | 1032 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
0 | 1033 |
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1034 virtual const TypePtr *add_offset( intptr_t offset ) const; |
12966 | 1035 // Return same type without a speculative part |
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1036 virtual const Type* remove_speculative() const; |
0 | 1037 |
12966 | 1038 // the core of the computation of the meet of 2 types |
1039 virtual const Type *xmeet_helper(const Type *t) const; | |
0 | 1040 virtual const TypeInstPtr *xmeet_unloaded( const TypeInstPtr *t ) const; |
1041 virtual const Type *xdual() const; // Compute dual right now. | |
1042 | |
1043 // Convenience common pre-built types. | |
1044 static const TypeInstPtr *NOTNULL; | |
1045 static const TypeInstPtr *BOTTOM; | |
1046 static const TypeInstPtr *MIRROR; | |
1047 static const TypeInstPtr *MARK; | |
1048 static const TypeInstPtr *KLASS; | |
1049 #ifndef PRODUCT | |
1050 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
1051 #endif | |
1052 }; | |
1053 | |
1054 //------------------------------TypeAryPtr------------------------------------- | |
1055 // Class of Java array pointers | |
1056 class TypeAryPtr : public TypeOopPtr { | |
10278 | 1057 TypeAryPtr( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, |
12966 | 1058 int offset, int instance_id, bool is_autobox_cache, const TypeOopPtr* speculative) |
1059 : TypeOopPtr(AryPtr,ptr,k,xk,o,offset, instance_id, speculative), | |
10278 | 1060 _ary(ary), |
1061 _is_autobox_cache(is_autobox_cache) | |
1062 { | |
1761 | 1063 #ifdef ASSERT |
1064 if (k != NULL) { | |
1065 // Verify that specified klass and TypeAryPtr::klass() follow the same rules. | |
1066 ciKlass* ck = compute_klass(true); | |
1792 | 1067 if (k != ck) { |
1761 | 1068 this->dump(); tty->cr(); |
1069 tty->print(" k: "); | |
1070 k->print(); tty->cr(); | |
1071 tty->print("ck: "); | |
1072 if (ck != NULL) ck->print(); | |
1073 else tty->print("<NULL>"); | |
1074 tty->cr(); | |
1075 assert(false, "unexpected TypeAryPtr::_klass"); | |
1076 } | |
1077 } | |
1078 #endif | |
1079 } | |
0 | 1080 virtual bool eq( const Type *t ) const; |
1081 virtual int hash() const; // Type specific hashing | |
1082 const TypeAry *_ary; // Array we point into | |
10278 | 1083 const bool _is_autobox_cache; |
0 | 1084 |
1761 | 1085 ciKlass* compute_klass(DEBUG_ONLY(bool verify = false)) const; |
1086 | |
0 | 1087 public: |
1088 // Accessors | |
1089 ciKlass* klass() const; | |
1090 const TypeAry* ary() const { return _ary; } | |
1091 const Type* elem() const { return _ary->_elem; } | |
1092 const TypeInt* size() const { return _ary->_size; } | |
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1093 bool is_stable() const { return _ary->_stable; } |
0 | 1094 |
10278 | 1095 bool is_autobox_cache() const { return _is_autobox_cache; } |
1096 | |
12966 | 1097 static const TypeAryPtr *make( PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id = InstanceBot, const TypeOopPtr* speculative = NULL); |
0 | 1098 // Constant pointer to array |
12966 | 1099 static const TypeAryPtr *make( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id = InstanceBot, const TypeOopPtr* speculative = NULL, bool is_autobox_cache = false); |
0 | 1100 |
1101 // Return a 'ptr' version of this type | |
1102 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
1103 | |
1104 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
1105 | |
223 | 1106 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
0 | 1107 |
1108 virtual const TypeAryPtr* cast_to_size(const TypeInt* size) const; | |
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1109 virtual const TypeInt* narrow_size_type(const TypeInt* size) const; |
0 | 1110 |
1111 virtual bool empty(void) const; // TRUE if type is vacuous | |
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1112 virtual const TypePtr *add_offset( intptr_t offset ) const; |
12966 | 1113 // Return same type without a speculative part |
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1114 virtual const Type* remove_speculative() const; |
0 | 1115 |
12966 | 1116 // the core of the computation of the meet of 2 types |
1117 virtual const Type *xmeet_helper(const Type *t) const; | |
0 | 1118 virtual const Type *xdual() const; // Compute dual right now. |
1119 | |
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1120 const TypeAryPtr* cast_to_stable(bool stable, int stable_dimension = 1) const; |
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1121 int stable_dimension() const; |
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1122 |
0 | 1123 // Convenience common pre-built types. |
1124 static const TypeAryPtr *RANGE; | |
1125 static const TypeAryPtr *OOPS; | |
163 | 1126 static const TypeAryPtr *NARROWOOPS; |
0 | 1127 static const TypeAryPtr *BYTES; |
1128 static const TypeAryPtr *SHORTS; | |
1129 static const TypeAryPtr *CHARS; | |
1130 static const TypeAryPtr *INTS; | |
1131 static const TypeAryPtr *LONGS; | |
1132 static const TypeAryPtr *FLOATS; | |
1133 static const TypeAryPtr *DOUBLES; | |
1134 // selects one of the above: | |
1135 static const TypeAryPtr *get_array_body_type(BasicType elem) { | |
1136 assert((uint)elem <= T_CONFLICT && _array_body_type[elem] != NULL, "bad elem type"); | |
1137 return _array_body_type[elem]; | |
1138 } | |
1139 static const TypeAryPtr *_array_body_type[T_CONFLICT+1]; | |
1140 // sharpen the type of an int which is used as an array size | |
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1141 #ifdef ASSERT |
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1142 // One type is interface, the other is oop |
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1143 virtual bool interface_vs_oop(const Type *t) const; |
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1144 #endif |
0 | 1145 #ifndef PRODUCT |
1146 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
1147 #endif | |
1148 }; | |
1149 | |
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1150 //------------------------------TypeMetadataPtr------------------------------------- |
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1151 // Some kind of metadata, either Method*, MethodData* or CPCacheOop |
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1152 class TypeMetadataPtr : public TypePtr { |
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1153 protected: |
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1154 TypeMetadataPtr(PTR ptr, ciMetadata* metadata, int offset); |
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1155 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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1156 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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1157 public: |
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1158 virtual bool eq( const Type *t ) const; |
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1159 virtual int hash() const; // Type specific hashing |
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1160 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1161 |
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1162 private: |
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1163 ciMetadata* _metadata; |
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1164 |
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1165 public: |
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1166 static const TypeMetadataPtr* make(PTR ptr, ciMetadata* m, int offset); |
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1167 |
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1168 static const TypeMetadataPtr* make(ciMethod* m); |
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1169 static const TypeMetadataPtr* make(ciMethodData* m); |
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1170 |
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1171 ciMetadata* metadata() const { return _metadata; } |
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1172 |
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1173 virtual const Type *cast_to_ptr_type(PTR ptr) const; |
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1174 |
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1175 virtual const TypePtr *add_offset( intptr_t offset ) const; |
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1176 |
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1177 virtual const Type *xmeet( const Type *t ) const; |
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1178 virtual const Type *xdual() const; // Compute dual right now. |
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1179 |
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1180 virtual intptr_t get_con() const; |
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1181 |
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1182 // Convenience common pre-built types. |
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1183 static const TypeMetadataPtr *BOTTOM; |
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1184 |
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1185 #ifndef PRODUCT |
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1186 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1187 #endif |
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1188 }; |
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1189 |
0 | 1190 //------------------------------TypeKlassPtr----------------------------------- |
1191 // Class of Java Klass pointers | |
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1192 class TypeKlassPtr : public TypePtr { |
0 | 1193 TypeKlassPtr( PTR ptr, ciKlass* klass, int offset ); |
1194 | |
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1195 protected: |
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1196 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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1197 public: |
0 | 1198 virtual bool eq( const Type *t ) const; |
1199 virtual int hash() const; // Type specific hashing | |
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1200 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1201 private: |
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1202 |
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1203 static const TypeKlassPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); |
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1204 |
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1205 ciKlass* _klass; |
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1206 |
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1207 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) |
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1208 bool _klass_is_exact; |
0 | 1209 |
1210 public: | |
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1211 ciSymbol* name() const { return klass()->name(); } |
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1212 |
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1213 ciKlass* klass() const { return _klass; } |
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1214 bool klass_is_exact() const { return _klass_is_exact; } |
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1215 |
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1216 bool is_loaded() const { return klass()->is_loaded(); } |
0 | 1217 |
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1218 // Creates a type given a klass. Correctly handles multi-dimensional arrays |
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1219 // Respects UseUniqueSubclasses. |
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1220 // If the klass is final, the resulting type will be exact. |
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1221 static const TypeKlassPtr* make_from_klass(ciKlass* klass) { |
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1222 return make_from_klass_common(klass, true, false); |
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1223 } |
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1224 // Same as before, but will produce an exact type, even if |
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1225 // the klass is not final, as long as it has exactly one implementation. |
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1226 static const TypeKlassPtr* make_from_klass_unique(ciKlass* klass) { |
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1227 return make_from_klass_common(klass, true, true); |
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1228 } |
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1229 // Same as before, but does not respects UseUniqueSubclasses. |
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1230 // Use this only for creating array element types. |
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1231 static const TypeKlassPtr* make_from_klass_raw(ciKlass* klass) { |
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1232 return make_from_klass_common(klass, false, false); |
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1233 } |
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1234 |
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1235 // Make a generic (unclassed) pointer to metadata. |
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1236 static const TypeKlassPtr* make(PTR ptr, int offset); |
555 | 1237 |
0 | 1238 // ptr to klass 'k' |
1239 static const TypeKlassPtr *make( ciKlass* k ) { return make( TypePtr::Constant, k, 0); } | |
1240 // ptr to klass 'k' with offset | |
1241 static const TypeKlassPtr *make( ciKlass* k, int offset ) { return make( TypePtr::Constant, k, offset); } | |
1242 // ptr to klass 'k' or sub-klass | |
1243 static const TypeKlassPtr *make( PTR ptr, ciKlass* k, int offset); | |
1244 | |
1245 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
1246 | |
1247 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
1248 | |
1249 // corresponding pointer to instance, for a given class | |
1250 const TypeOopPtr* as_instance_type() const; | |
1251 | |
306
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1252 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 1253 virtual const Type *xmeet( const Type *t ) const; |
1254 virtual const Type *xdual() const; // Compute dual right now. | |
1255 | |
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1256 virtual intptr_t get_con() const; |
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1257 |
0 | 1258 // Convenience common pre-built types. |
1259 static const TypeKlassPtr* OBJECT; // Not-null object klass or below | |
1260 static const TypeKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same | |
1261 #ifndef PRODUCT | |
1262 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
1263 #endif | |
1264 }; | |
1265 | |
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1266 class TypeNarrowPtr : public Type { |
113
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1267 protected: |
827
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1268 const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR |
113
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1269 |
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1270 TypeNarrowPtr(TYPES t, const TypePtr* ptrtype): _ptrtype(ptrtype), |
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1271 Type(t) { |
827
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1272 assert(ptrtype->offset() == 0 || |
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1273 ptrtype->offset() == OffsetBot || |
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1274 ptrtype->offset() == OffsetTop, "no real offsets"); |
113
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1275 } |
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1276 |
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1277 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const = 0; |
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1278 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const = 0; |
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1279 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const = 0; |
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1280 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const = 0; |
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1281 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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1282 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
113
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1283 public: |
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1284 virtual bool eq( const Type *t ) const; |
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1285 virtual int hash() const; // Type specific hashing |
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1286 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1287 |
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1288 virtual const Type *xmeet( const Type *t ) const; |
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1289 virtual const Type *xdual() const; // Compute dual right now. |
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1290 |
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1291 virtual intptr_t get_con() const; |
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1292 |
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1293 virtual bool empty(void) const; // TRUE if type is vacuous |
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1294 |
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1295 // returns the equivalent ptr type for this compressed pointer |
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1296 const TypePtr *get_ptrtype() const { |
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1297 return _ptrtype; |
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1298 } |
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1299 |
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1300 #ifndef PRODUCT |
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1301 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1302 #endif |
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1303 }; |
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1304 |
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1305 //------------------------------TypeNarrowOop---------------------------------- |
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1306 // A compressed reference to some kind of Oop. This type wraps around |
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1307 // a preexisting TypeOopPtr and forwards most of it's operations to |
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1308 // the underlying type. It's only real purpose is to track the |
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1309 // oopness of the compressed oop value when we expose the conversion |
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1310 // between the normal and the compressed form. |
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1311 class TypeNarrowOop : public TypeNarrowPtr { |
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1312 protected: |
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1313 TypeNarrowOop( const TypePtr* ptrtype): TypeNarrowPtr(NarrowOop, ptrtype) { |
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1314 } |
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1315 |
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1316 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { |
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1317 return t->isa_narrowoop(); |
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1318 } |
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1319 |
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1320 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { |
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1321 return t->is_narrowoop(); |
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1322 } |
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1323 |
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1324 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { |
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1325 return new TypeNarrowOop(t); |
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1326 } |
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1327 |
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1328 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { |
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1329 return (const TypeNarrowPtr*)((new TypeNarrowOop(t))->hashcons()); |
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1330 } |
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1331 |
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1332 public: |
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1333 |
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1334 static const TypeNarrowOop *make( const TypePtr* type); |
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1335 |
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1336 static const TypeNarrowOop* make_from_constant(ciObject* con, bool require_constant = false) { |
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1337 return make(TypeOopPtr::make_from_constant(con, require_constant)); |
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1338 } |
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1339 |
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1340 static const TypeNarrowOop *BOTTOM; |
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1341 static const TypeNarrowOop *NULL_PTR; |
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1342 |
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1343 virtual const Type* remove_speculative() const { |
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1344 return make(_ptrtype->remove_speculative()->is_ptr()); |
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1345 } |
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1346 |
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1347 #ifndef PRODUCT |
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1348 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1349 #endif |
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1350 }; |
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1351 |
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1352 //------------------------------TypeNarrowKlass---------------------------------- |
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1353 // A compressed reference to klass pointer. This type wraps around a |
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1354 // preexisting TypeKlassPtr and forwards most of it's operations to |
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1355 // the underlying type. |
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1356 class TypeNarrowKlass : public TypeNarrowPtr { |
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1357 protected: |
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1358 TypeNarrowKlass( const TypePtr* ptrtype): TypeNarrowPtr(NarrowKlass, ptrtype) { |
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1359 } |
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1360 |
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1361 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { |
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1362 return t->isa_narrowklass(); |
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1363 } |
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1364 |
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1365 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { |
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1366 return t->is_narrowklass(); |
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1367 } |
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1368 |
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1369 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { |
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1370 return new TypeNarrowKlass(t); |
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1371 } |
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1372 |
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1373 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { |
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1374 return (const TypeNarrowPtr*)((new TypeNarrowKlass(t))->hashcons()); |
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1375 } |
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1376 |
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1377 public: |
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1378 static const TypeNarrowKlass *make( const TypePtr* type); |
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1379 |
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1380 // static const TypeNarrowKlass *BOTTOM; |
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1381 static const TypeNarrowKlass *NULL_PTR; |
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1382 |
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1383 #ifndef PRODUCT |
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1384 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1385 #endif |
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1386 }; |
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1387 |
0 | 1388 //------------------------------TypeFunc--------------------------------------- |
1389 // Class of Array Types | |
1390 class TypeFunc : public Type { | |
1391 TypeFunc( const TypeTuple *domain, const TypeTuple *range ) : Type(Function), _domain(domain), _range(range) {} | |
1392 virtual bool eq( const Type *t ) const; | |
1393 virtual int hash() const; // Type specific hashing | |
1394 virtual bool singleton(void) const; // TRUE if type is a singleton | |
1395 virtual bool empty(void) const; // TRUE if type is vacuous | |
1396 public: | |
1397 // Constants are shared among ADLC and VM | |
1398 enum { Control = AdlcVMDeps::Control, | |
1399 I_O = AdlcVMDeps::I_O, | |
1400 Memory = AdlcVMDeps::Memory, | |
1401 FramePtr = AdlcVMDeps::FramePtr, | |
1402 ReturnAdr = AdlcVMDeps::ReturnAdr, | |
1403 Parms = AdlcVMDeps::Parms | |
1404 }; | |
1405 | |
1406 const TypeTuple* const _domain; // Domain of inputs | |
1407 const TypeTuple* const _range; // Range of results | |
1408 | |
1409 // Accessors: | |
1410 const TypeTuple* domain() const { return _domain; } | |
1411 const TypeTuple* range() const { return _range; } | |
1412 | |
1413 static const TypeFunc *make(ciMethod* method); | |
1414 static const TypeFunc *make(ciSignature signature, const Type* extra); | |
1415 static const TypeFunc *make(const TypeTuple* domain, const TypeTuple* range); | |
1416 | |
1417 virtual const Type *xmeet( const Type *t ) const; | |
1418 virtual const Type *xdual() const; // Compute dual right now. | |
1419 | |
1420 BasicType return_type() const; | |
1421 | |
1422 #ifndef PRODUCT | |
1423 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
1424 #endif | |
1425 // Convenience common pre-built types. | |
1426 }; | |
1427 | |
1428 //------------------------------accessors-------------------------------------- | |
163 | 1429 inline bool Type::is_ptr_to_narrowoop() const { |
1430 #ifdef _LP64 | |
1431 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowoop_nv()); | |
1432 #else | |
1433 return false; | |
1434 #endif | |
1435 } | |
1436 | |
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1437 inline bool Type::is_ptr_to_narrowklass() const { |
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1438 #ifdef _LP64 |
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1439 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowklass_nv()); |
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1440 #else |
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1441 return false; |
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1442 #endif |
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1443 } |
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1444 |
0 | 1445 inline float Type::getf() const { |
1446 assert( _base == FloatCon, "Not a FloatCon" ); | |
1447 return ((TypeF*)this)->_f; | |
1448 } | |
1449 | |
1450 inline double Type::getd() const { | |
1451 assert( _base == DoubleCon, "Not a DoubleCon" ); | |
1452 return ((TypeD*)this)->_d; | |
1453 } | |
1454 | |
1455 inline const TypeInt *Type::is_int() const { | |
1456 assert( _base == Int, "Not an Int" ); | |
1457 return (TypeInt*)this; | |
1458 } | |
1459 | |
1460 inline const TypeInt *Type::isa_int() const { | |
1461 return ( _base == Int ? (TypeInt*)this : NULL); | |
1462 } | |
1463 | |
1464 inline const TypeLong *Type::is_long() const { | |
1465 assert( _base == Long, "Not a Long" ); | |
1466 return (TypeLong*)this; | |
1467 } | |
1468 | |
1469 inline const TypeLong *Type::isa_long() const { | |
1470 return ( _base == Long ? (TypeLong*)this : NULL); | |
1471 } | |
1472 | |
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1473 inline const TypeF *Type::isa_float() const { |
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1474 return ((_base == FloatTop || |
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1475 _base == FloatCon || |
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1476 _base == FloatBot) ? (TypeF*)this : NULL); |
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1477 } |
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1478 |
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1479 inline const TypeF *Type::is_float_constant() const { |
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1480 assert( _base == FloatCon, "Not a Float" ); |
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1481 return (TypeF*)this; |
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1482 } |
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1483 |
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1484 inline const TypeF *Type::isa_float_constant() const { |
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1485 return ( _base == FloatCon ? (TypeF*)this : NULL); |
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1486 } |
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1487 |
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1488 inline const TypeD *Type::isa_double() const { |
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1489 return ((_base == DoubleTop || |
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1490 _base == DoubleCon || |
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1491 _base == DoubleBot) ? (TypeD*)this : NULL); |
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1492 } |
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1493 |
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1494 inline const TypeD *Type::is_double_constant() const { |
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1495 assert( _base == DoubleCon, "Not a Double" ); |
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1496 return (TypeD*)this; |
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1497 } |
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1498 |
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1499 inline const TypeD *Type::isa_double_constant() const { |
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1500 return ( _base == DoubleCon ? (TypeD*)this : NULL); |
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1501 } |
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1502 |
0 | 1503 inline const TypeTuple *Type::is_tuple() const { |
1504 assert( _base == Tuple, "Not a Tuple" ); | |
1505 return (TypeTuple*)this; | |
1506 } | |
1507 | |
1508 inline const TypeAry *Type::is_ary() const { | |
1509 assert( _base == Array , "Not an Array" ); | |
1510 return (TypeAry*)this; | |
1511 } | |
1512 | |
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1513 inline const TypeVect *Type::is_vect() const { |
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1514 assert( _base >= VectorS && _base <= VectorY, "Not a Vector" ); |
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1515 return (TypeVect*)this; |
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1516 } |
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1517 |
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1518 inline const TypeVect *Type::isa_vect() const { |
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1519 return (_base >= VectorS && _base <= VectorY) ? (TypeVect*)this : NULL; |
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1520 } |
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1521 |
0 | 1522 inline const TypePtr *Type::is_ptr() const { |
1523 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
1524 assert(_base >= AnyPtr && _base <= KlassPtr, "Not a pointer"); | |
1525 return (TypePtr*)this; | |
1526 } | |
1527 | |
1528 inline const TypePtr *Type::isa_ptr() const { | |
1529 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
1530 return (_base >= AnyPtr && _base <= KlassPtr) ? (TypePtr*)this : NULL; | |
1531 } | |
1532 | |
1533 inline const TypeOopPtr *Type::is_oopptr() const { | |
1534 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
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1535 assert(_base >= OopPtr && _base <= AryPtr, "Not a Java pointer" ) ; |
0 | 1536 return (TypeOopPtr*)this; |
1537 } | |
1538 | |
1539 inline const TypeOopPtr *Type::isa_oopptr() const { | |
1540 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
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1541 return (_base >= OopPtr && _base <= AryPtr) ? (TypeOopPtr*)this : NULL; |
0 | 1542 } |
1543 | |
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1544 inline const TypeRawPtr *Type::isa_rawptr() const { |
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1545 return (_base == RawPtr) ? (TypeRawPtr*)this : NULL; |
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1546 } |
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1547 |
0 | 1548 inline const TypeRawPtr *Type::is_rawptr() const { |
1549 assert( _base == RawPtr, "Not a raw pointer" ); | |
1550 return (TypeRawPtr*)this; | |
1551 } | |
1552 | |
1553 inline const TypeInstPtr *Type::isa_instptr() const { | |
1554 return (_base == InstPtr) ? (TypeInstPtr*)this : NULL; | |
1555 } | |
1556 | |
1557 inline const TypeInstPtr *Type::is_instptr() const { | |
1558 assert( _base == InstPtr, "Not an object pointer" ); | |
1559 return (TypeInstPtr*)this; | |
1560 } | |
1561 | |
1562 inline const TypeAryPtr *Type::isa_aryptr() const { | |
1563 return (_base == AryPtr) ? (TypeAryPtr*)this : NULL; | |
1564 } | |
1565 | |
1566 inline const TypeAryPtr *Type::is_aryptr() const { | |
1567 assert( _base == AryPtr, "Not an array pointer" ); | |
1568 return (TypeAryPtr*)this; | |
1569 } | |
1570 | |
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1571 inline const TypeNarrowOop *Type::is_narrowoop() const { |
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1572 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
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1573 assert(_base == NarrowOop, "Not a narrow oop" ) ; |
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1574 return (TypeNarrowOop*)this; |
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1575 } |
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1576 |
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1577 inline const TypeNarrowOop *Type::isa_narrowoop() const { |
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1578 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
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1579 return (_base == NarrowOop) ? (TypeNarrowOop*)this : NULL; |
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1580 } |
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1581 |
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1582 inline const TypeNarrowKlass *Type::is_narrowklass() const { |
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1583 assert(_base == NarrowKlass, "Not a narrow oop" ) ; |
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1584 return (TypeNarrowKlass*)this; |
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1585 } |
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1586 |
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1587 inline const TypeNarrowKlass *Type::isa_narrowklass() const { |
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1588 return (_base == NarrowKlass) ? (TypeNarrowKlass*)this : NULL; |
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1589 } |
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1590 |
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1591 inline const TypeMetadataPtr *Type::is_metadataptr() const { |
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1592 // MetadataPtr is the first and CPCachePtr the last |
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1593 assert(_base == MetadataPtr, "Not a metadata pointer" ) ; |
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1594 return (TypeMetadataPtr*)this; |
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1595 } |
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1596 |
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1597 inline const TypeMetadataPtr *Type::isa_metadataptr() const { |
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1598 return (_base == MetadataPtr) ? (TypeMetadataPtr*)this : NULL; |
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1599 } |
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1600 |
0 | 1601 inline const TypeKlassPtr *Type::isa_klassptr() const { |
1602 return (_base == KlassPtr) ? (TypeKlassPtr*)this : NULL; | |
1603 } | |
1604 | |
1605 inline const TypeKlassPtr *Type::is_klassptr() const { | |
1606 assert( _base == KlassPtr, "Not a klass pointer" ); | |
1607 return (TypeKlassPtr*)this; | |
1608 } | |
1609 | |
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1610 inline const TypePtr* Type::make_ptr() const { |
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1611 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype() : |
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1612 ((_base == NarrowKlass) ? is_narrowklass()->get_ptrtype() : |
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1613 (isa_ptr() ? is_ptr() : NULL)); |
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1614 } |
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1615 |
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1616 inline const TypeOopPtr* Type::make_oopptr() const { |
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1617 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->is_oopptr() : is_oopptr(); |
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1618 } |
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1619 |
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1620 inline const TypeNarrowOop* Type::make_narrowoop() const { |
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1621 return (_base == NarrowOop) ? is_narrowoop() : |
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1622 (isa_ptr() ? TypeNarrowOop::make(is_ptr()) : NULL); |
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1623 } |
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1624 |
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1625 inline const TypeNarrowKlass* Type::make_narrowklass() const { |
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1626 return (_base == NarrowKlass) ? is_narrowklass() : |
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1627 (isa_ptr() ? TypeNarrowKlass::make(is_ptr()) : NULL); |
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1628 } |
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1629 |
0 | 1630 inline bool Type::is_floatingpoint() const { |
1631 if( (_base == FloatCon) || (_base == FloatBot) || | |
1632 (_base == DoubleCon) || (_base == DoubleBot) ) | |
1633 return true; | |
1634 return false; | |
1635 } | |
1636 | |
10278 | 1637 inline bool Type::is_ptr_to_boxing_obj() const { |
1638 const TypeInstPtr* tp = isa_instptr(); | |
1639 return (tp != NULL) && (tp->offset() == 0) && | |
1640 tp->klass()->is_instance_klass() && | |
1641 tp->klass()->as_instance_klass()->is_box_klass(); | |
1642 } | |
1643 | |
0 | 1644 |
1645 // =============================================================== | |
1646 // Things that need to be 64-bits in the 64-bit build but | |
1647 // 32-bits in the 32-bit build. Done this way to get full | |
1648 // optimization AND strong typing. | |
1649 #ifdef _LP64 | |
1650 | |
1651 // For type queries and asserts | |
1652 #define is_intptr_t is_long | |
1653 #define isa_intptr_t isa_long | |
1654 #define find_intptr_t_type find_long_type | |
1655 #define find_intptr_t_con find_long_con | |
1656 #define TypeX TypeLong | |
1657 #define Type_X Type::Long | |
1658 #define TypeX_X TypeLong::LONG | |
1659 #define TypeX_ZERO TypeLong::ZERO | |
1660 // For 'ideal_reg' machine registers | |
1661 #define Op_RegX Op_RegL | |
1662 // For phase->intcon variants | |
1663 #define MakeConX longcon | |
1664 #define ConXNode ConLNode | |
1665 // For array index arithmetic | |
1666 #define MulXNode MulLNode | |
1667 #define AndXNode AndLNode | |
1668 #define OrXNode OrLNode | |
1669 #define CmpXNode CmpLNode | |
1670 #define SubXNode SubLNode | |
1671 #define LShiftXNode LShiftLNode | |
1672 // For object size computation: | |
1673 #define AddXNode AddLNode | |
17
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1674 #define RShiftXNode RShiftLNode |
0 | 1675 // For card marks and hashcodes |
1676 #define URShiftXNode URShiftLNode | |
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1677 // UseOptoBiasInlining |
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1678 #define XorXNode XorLNode |
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1679 #define StoreXConditionalNode StoreLConditionalNode |
0 | 1680 // Opcodes |
1681 #define Op_LShiftX Op_LShiftL | |
1682 #define Op_AndX Op_AndL | |
1683 #define Op_AddX Op_AddL | |
1684 #define Op_SubX Op_SubL | |
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1685 #define Op_XorX Op_XorL |
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1686 #define Op_URShiftX Op_URShiftL |
0 | 1687 // conversions |
1688 #define ConvI2X(x) ConvI2L(x) | |
1689 #define ConvL2X(x) (x) | |
1690 #define ConvX2I(x) ConvL2I(x) | |
1691 #define ConvX2L(x) (x) | |
1692 | |
1693 #else | |
1694 | |
1695 // For type queries and asserts | |
1696 #define is_intptr_t is_int | |
1697 #define isa_intptr_t isa_int | |
1698 #define find_intptr_t_type find_int_type | |
1699 #define find_intptr_t_con find_int_con | |
1700 #define TypeX TypeInt | |
1701 #define Type_X Type::Int | |
1702 #define TypeX_X TypeInt::INT | |
1703 #define TypeX_ZERO TypeInt::ZERO | |
1704 // For 'ideal_reg' machine registers | |
1705 #define Op_RegX Op_RegI | |
1706 // For phase->intcon variants | |
1707 #define MakeConX intcon | |
1708 #define ConXNode ConINode | |
1709 // For array index arithmetic | |
1710 #define MulXNode MulINode | |
1711 #define AndXNode AndINode | |
1712 #define OrXNode OrINode | |
1713 #define CmpXNode CmpINode | |
1714 #define SubXNode SubINode | |
1715 #define LShiftXNode LShiftINode | |
1716 // For object size computation: | |
1717 #define AddXNode AddINode | |
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1718 #define RShiftXNode RShiftINode |
0 | 1719 // For card marks and hashcodes |
1720 #define URShiftXNode URShiftINode | |
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1721 // UseOptoBiasInlining |
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1722 #define XorXNode XorINode |
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1723 #define StoreXConditionalNode StoreIConditionalNode |
0 | 1724 // Opcodes |
1725 #define Op_LShiftX Op_LShiftI | |
1726 #define Op_AndX Op_AndI | |
1727 #define Op_AddX Op_AddI | |
1728 #define Op_SubX Op_SubI | |
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1729 #define Op_XorX Op_XorI |
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1730 #define Op_URShiftX Op_URShiftI |
0 | 1731 // conversions |
1732 #define ConvI2X(x) (x) | |
1733 #define ConvL2X(x) ConvL2I(x) | |
1734 #define ConvX2I(x) (x) | |
1735 #define ConvX2L(x) ConvI2L(x) | |
1736 | |
1737 #endif | |
1972 | 1738 |
1739 #endif // SHARE_VM_OPTO_TYPE_HPP |