Mercurial > hg > truffle
annotate src/share/vm/opto/type.hpp @ 17721:d8a0bb6f62a5
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author | coffeys |
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date | Wed, 12 Mar 2014 18:53:34 +0000 |
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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: |
492 virtual bool eq( const Type *t ) const; | |
493 virtual int hash() const; // Type specific hashing | |
494 virtual bool singleton(void) const; // TRUE if type is a singleton | |
495 virtual bool empty(void) const; // TRUE if type is vacuous | |
496 const jint _lo, _hi; // Lower bound, upper bound | |
497 const short _widen; // Limit on times we widen this sucker | |
498 | |
499 static const TypeInt *make(jint lo); | |
500 // must always specify w | |
501 static const TypeInt *make(jint lo, jint hi, int w); | |
502 | |
503 // Check for single integer | |
504 int is_con() const { return _lo==_hi; } | |
505 bool is_con(int i) const { return is_con() && _lo == i; } | |
506 jint get_con() const { assert( is_con(), "" ); return _lo; } | |
507 | |
508 virtual bool is_finite() const; // Has a finite value | |
509 | |
510 virtual const Type *xmeet( const Type *t ) const; | |
511 virtual const Type *xdual() const; // Compute dual right now. | |
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512 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
0 | 513 virtual const Type *narrow( const Type *t ) const; |
514 // Do not kill _widen bits. | |
515 // Convenience common pre-built types. | |
516 static const TypeInt *MINUS_1; | |
517 static const TypeInt *ZERO; | |
518 static const TypeInt *ONE; | |
519 static const TypeInt *BOOL; | |
520 static const TypeInt *CC; | |
521 static const TypeInt *CC_LT; // [-1] == MINUS_1 | |
522 static const TypeInt *CC_GT; // [1] == ONE | |
523 static const TypeInt *CC_EQ; // [0] == ZERO | |
524 static const TypeInt *CC_LE; // [-1,0] | |
525 static const TypeInt *CC_GE; // [0,1] == BOOL (!) | |
526 static const TypeInt *BYTE; | |
624 | 527 static const TypeInt *UBYTE; |
0 | 528 static const TypeInt *CHAR; |
529 static const TypeInt *SHORT; | |
530 static const TypeInt *POS; | |
531 static const TypeInt *POS1; | |
532 static const TypeInt *INT; | |
533 static const TypeInt *SYMINT; // symmetric range [-max_jint..max_jint] | |
534 #ifndef PRODUCT | |
535 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
536 #endif | |
537 }; | |
538 | |
539 | |
540 //------------------------------TypeLong--------------------------------------- | |
541 // Class of long integer ranges, the set of integers between a lower bound and | |
542 // an upper bound, inclusive. | |
543 class TypeLong : public Type { | |
544 TypeLong( jlong lo, jlong hi, int w ); | |
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545 protected: |
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546 // Do not kill _widen bits. |
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547 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
0 | 548 public: |
549 virtual bool eq( const Type *t ) const; | |
550 virtual int hash() const; // Type specific hashing | |
551 virtual bool singleton(void) const; // TRUE if type is a singleton | |
552 virtual bool empty(void) const; // TRUE if type is vacuous | |
553 public: | |
554 const jlong _lo, _hi; // Lower bound, upper bound | |
555 const short _widen; // Limit on times we widen this sucker | |
556 | |
557 static const TypeLong *make(jlong lo); | |
558 // must always specify w | |
559 static const TypeLong *make(jlong lo, jlong hi, int w); | |
560 | |
561 // Check for single integer | |
562 int is_con() const { return _lo==_hi; } | |
145 | 563 bool is_con(int i) const { return is_con() && _lo == i; } |
0 | 564 jlong get_con() const { assert( is_con(), "" ); return _lo; } |
565 | |
566 virtual bool is_finite() const; // Has a finite value | |
567 | |
568 virtual const Type *xmeet( const Type *t ) const; | |
569 virtual const Type *xdual() const; // Compute dual right now. | |
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570 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
0 | 571 virtual const Type *narrow( const Type *t ) const; |
572 // Convenience common pre-built types. | |
573 static const TypeLong *MINUS_1; | |
574 static const TypeLong *ZERO; | |
575 static const TypeLong *ONE; | |
576 static const TypeLong *POS; | |
577 static const TypeLong *LONG; | |
578 static const TypeLong *INT; // 32-bit subrange [min_jint..max_jint] | |
579 static const TypeLong *UINT; // 32-bit unsigned [0..max_juint] | |
580 #ifndef PRODUCT | |
581 virtual void dump2( Dict &d, uint, outputStream *st ) const;// Specialized per-Type dumping | |
582 #endif | |
583 }; | |
584 | |
585 //------------------------------TypeTuple-------------------------------------- | |
586 // Class of Tuple Types, essentially type collections for function signatures | |
587 // and class layouts. It happens to also be a fast cache for the HotSpot | |
588 // signature types. | |
589 class TypeTuple : public Type { | |
590 TypeTuple( uint cnt, const Type **fields ) : Type(Tuple), _cnt(cnt), _fields(fields) { } | |
591 public: | |
592 virtual bool eq( const Type *t ) const; | |
593 virtual int hash() const; // Type specific hashing | |
594 virtual bool singleton(void) const; // TRUE if type is a singleton | |
595 virtual bool empty(void) const; // TRUE if type is vacuous | |
596 | |
597 public: | |
598 const uint _cnt; // Count of fields | |
599 const Type ** const _fields; // Array of field types | |
600 | |
601 // Accessors: | |
602 uint cnt() const { return _cnt; } | |
603 const Type* field_at(uint i) const { | |
604 assert(i < _cnt, "oob"); | |
605 return _fields[i]; | |
606 } | |
607 void set_field_at(uint i, const Type* t) { | |
608 assert(i < _cnt, "oob"); | |
609 _fields[i] = t; | |
610 } | |
611 | |
612 static const TypeTuple *make( uint cnt, const Type **fields ); | |
613 static const TypeTuple *make_range(ciSignature *sig); | |
614 static const TypeTuple *make_domain(ciInstanceKlass* recv, ciSignature *sig); | |
615 | |
616 // Subroutine call type with space allocated for argument types | |
617 static const Type **fields( uint arg_cnt ); | |
618 | |
619 virtual const Type *xmeet( const Type *t ) const; | |
620 virtual const Type *xdual() const; // Compute dual right now. | |
621 // Convenience common pre-built types. | |
622 static const TypeTuple *IFBOTH; | |
623 static const TypeTuple *IFFALSE; | |
624 static const TypeTuple *IFTRUE; | |
625 static const TypeTuple *IFNEITHER; | |
626 static const TypeTuple *LOOPBODY; | |
627 static const TypeTuple *MEMBAR; | |
628 static const TypeTuple *STORECONDITIONAL; | |
629 static const TypeTuple *START_I2C; | |
630 static const TypeTuple *INT_PAIR; | |
631 static const TypeTuple *LONG_PAIR; | |
12323 | 632 static const TypeTuple *INT_CC_PAIR; |
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633 static const TypeTuple *LONG_CC_PAIR; |
0 | 634 #ifndef PRODUCT |
635 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
636 #endif | |
637 }; | |
638 | |
639 //------------------------------TypeAry---------------------------------------- | |
640 // Class of Array Types | |
641 class TypeAry : public Type { | |
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642 TypeAry(const Type* elem, const TypeInt* size, bool stable) : Type(Array), |
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643 _elem(elem), _size(size), _stable(stable) {} |
0 | 644 public: |
645 virtual bool eq( const Type *t ) const; | |
646 virtual int hash() const; // Type specific hashing | |
647 virtual bool singleton(void) const; // TRUE if type is a singleton | |
648 virtual bool empty(void) const; // TRUE if type is vacuous | |
649 | |
650 private: | |
651 const Type *_elem; // Element type of array | |
652 const TypeInt *_size; // Elements in array | |
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653 const bool _stable; // Are elements @Stable? |
0 | 654 friend class TypeAryPtr; |
655 | |
656 public: | |
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657 static const TypeAry* make(const Type* elem, const TypeInt* size, bool stable = false); |
0 | 658 |
659 virtual const Type *xmeet( const Type *t ) const; | |
660 virtual const Type *xdual() const; // Compute dual right now. | |
661 bool ary_must_be_exact() const; // true if arrays of such are never generic | |
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662 virtual const Type* remove_speculative() const; |
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663 #ifdef ASSERT |
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664 // One type is interface, the other is oop |
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665 virtual bool interface_vs_oop(const Type *t) const; |
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666 #endif |
0 | 667 #ifndef PRODUCT |
668 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
669 #endif | |
670 }; | |
671 | |
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672 //------------------------------TypeVect--------------------------------------- |
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673 // Class of Vector Types |
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674 class TypeVect : public Type { |
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675 const Type* _elem; // Vector's element type |
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676 const uint _length; // Elements in vector (power of 2) |
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677 |
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678 protected: |
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679 TypeVect(TYPES t, const Type* elem, uint length) : Type(t), |
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680 _elem(elem), _length(length) {} |
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681 |
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682 public: |
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683 const Type* element_type() const { return _elem; } |
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684 BasicType element_basic_type() const { return _elem->array_element_basic_type(); } |
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685 uint length() const { return _length; } |
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686 uint length_in_bytes() const { |
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687 return _length * type2aelembytes(element_basic_type()); |
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688 } |
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689 |
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690 virtual bool eq(const Type *t) const; |
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691 virtual int hash() const; // Type specific hashing |
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692 virtual bool singleton(void) const; // TRUE if type is a singleton |
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693 virtual bool empty(void) const; // TRUE if type is vacuous |
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694 |
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695 static const TypeVect *make(const BasicType elem_bt, uint length) { |
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696 // Use bottom primitive type. |
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697 return make(get_const_basic_type(elem_bt), length); |
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698 } |
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699 // Used directly by Replicate nodes to construct singleton vector. |
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700 static const TypeVect *make(const Type* elem, uint length); |
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701 |
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702 virtual const Type *xmeet( const Type *t) const; |
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703 virtual const Type *xdual() const; // Compute dual right now. |
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704 |
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705 static const TypeVect *VECTS; |
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706 static const TypeVect *VECTD; |
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707 static const TypeVect *VECTX; |
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708 static const TypeVect *VECTY; |
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709 |
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710 #ifndef PRODUCT |
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711 virtual void dump2(Dict &d, uint, outputStream *st) const; // Specialized per-Type dumping |
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712 #endif |
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713 }; |
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714 |
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715 class TypeVectS : public TypeVect { |
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716 friend class TypeVect; |
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717 TypeVectS(const Type* elem, uint length) : TypeVect(VectorS, elem, length) {} |
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718 }; |
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719 |
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720 class TypeVectD : public TypeVect { |
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721 friend class TypeVect; |
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722 TypeVectD(const Type* elem, uint length) : TypeVect(VectorD, elem, length) {} |
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723 }; |
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724 |
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725 class TypeVectX : public TypeVect { |
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726 friend class TypeVect; |
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727 TypeVectX(const Type* elem, uint length) : TypeVect(VectorX, elem, length) {} |
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728 }; |
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729 |
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730 class TypeVectY : public TypeVect { |
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731 friend class TypeVect; |
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732 TypeVectY(const Type* elem, uint length) : TypeVect(VectorY, elem, length) {} |
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733 }; |
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734 |
0 | 735 //------------------------------TypePtr---------------------------------------- |
736 // Class of machine Pointer Types: raw data, instances or arrays. | |
737 // If the _base enum is AnyPtr, then this refers to all of the above. | |
738 // Otherwise the _base will indicate which subset of pointers is affected, | |
739 // and the class will be inherited from. | |
740 class TypePtr : public Type { | |
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741 friend class TypeNarrowPtr; |
0 | 742 public: |
743 enum PTR { TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, lastPTR }; | |
744 protected: | |
745 TypePtr( TYPES t, PTR ptr, int offset ) : Type(t), _ptr(ptr), _offset(offset) {} | |
746 virtual bool eq( const Type *t ) const; | |
747 virtual int hash() const; // Type specific hashing | |
748 static const PTR ptr_meet[lastPTR][lastPTR]; | |
749 static const PTR ptr_dual[lastPTR]; | |
750 static const char * const ptr_msg[lastPTR]; | |
751 | |
752 public: | |
753 const int _offset; // Offset into oop, with TOP & BOT | |
754 const PTR _ptr; // Pointer equivalence class | |
755 | |
756 const int offset() const { return _offset; } | |
757 const PTR ptr() const { return _ptr; } | |
758 | |
759 static const TypePtr *make( TYPES t, PTR ptr, int offset ); | |
760 | |
761 // Return a 'ptr' version of this type | |
762 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
763 | |
764 virtual intptr_t get_con() const; | |
765 | |
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766 int xadd_offset( intptr_t offset ) const; |
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767 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 768 |
769 virtual bool singleton(void) const; // TRUE if type is a singleton | |
770 virtual bool empty(void) const; // TRUE if type is vacuous | |
771 virtual const Type *xmeet( const Type *t ) const; | |
772 int meet_offset( int offset ) const; | |
773 int dual_offset( ) const; | |
774 virtual const Type *xdual() const; // Compute dual right now. | |
775 | |
776 // meet, dual and join over pointer equivalence sets | |
777 PTR meet_ptr( const PTR in_ptr ) const { return ptr_meet[in_ptr][ptr()]; } | |
778 PTR dual_ptr() const { return ptr_dual[ptr()]; } | |
779 | |
780 // This is textually confusing unless one recalls that | |
781 // join(t) == dual()->meet(t->dual())->dual(). | |
782 PTR join_ptr( const PTR in_ptr ) const { | |
783 return ptr_dual[ ptr_meet[ ptr_dual[in_ptr] ] [ dual_ptr() ] ]; | |
784 } | |
785 | |
786 // Tests for relation to centerline of type lattice: | |
787 static bool above_centerline(PTR ptr) { return (ptr <= AnyNull); } | |
788 static bool below_centerline(PTR ptr) { return (ptr >= NotNull); } | |
789 // Convenience common pre-built types. | |
790 static const TypePtr *NULL_PTR; | |
791 static const TypePtr *NOTNULL; | |
792 static const TypePtr *BOTTOM; | |
793 #ifndef PRODUCT | |
794 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
795 #endif | |
796 }; | |
797 | |
798 //------------------------------TypeRawPtr------------------------------------- | |
799 // Class of raw pointers, pointers to things other than Oops. Examples | |
800 // include the stack pointer, top of heap, card-marking area, handles, etc. | |
801 class TypeRawPtr : public TypePtr { | |
802 protected: | |
803 TypeRawPtr( PTR ptr, address bits ) : TypePtr(RawPtr,ptr,0), _bits(bits){} | |
804 public: | |
805 virtual bool eq( const Type *t ) const; | |
806 virtual int hash() const; // Type specific hashing | |
807 | |
808 const address _bits; // Constant value, if applicable | |
809 | |
810 static const TypeRawPtr *make( PTR ptr ); | |
811 static const TypeRawPtr *make( address bits ); | |
812 | |
813 // Return a 'ptr' version of this type | |
814 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
815 | |
816 virtual intptr_t get_con() const; | |
817 | |
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818 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 819 |
820 virtual const Type *xmeet( const Type *t ) const; | |
821 virtual const Type *xdual() const; // Compute dual right now. | |
822 // Convenience common pre-built types. | |
823 static const TypeRawPtr *BOTTOM; | |
824 static const TypeRawPtr *NOTNULL; | |
825 #ifndef PRODUCT | |
826 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
827 #endif | |
828 }; | |
829 | |
830 //------------------------------TypeOopPtr------------------------------------- | |
831 // Some kind of oop (Java pointer), either klass or instance or array. | |
832 class TypeOopPtr : public TypePtr { | |
833 protected: | |
12966 | 834 TypeOopPtr(TYPES t, PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id, const TypeOopPtr* speculative); |
0 | 835 public: |
836 virtual bool eq( const Type *t ) const; | |
837 virtual int hash() const; // Type specific hashing | |
838 virtual bool singleton(void) const; // TRUE if type is a singleton | |
839 enum { | |
223 | 840 InstanceTop = -1, // undefined instance |
841 InstanceBot = 0 // any possible instance | |
0 | 842 }; |
843 protected: | |
844 | |
845 // Oop is NULL, unless this is a constant oop. | |
846 ciObject* _const_oop; // Constant oop | |
847 // If _klass is NULL, then so is _sig. This is an unloaded klass. | |
848 ciKlass* _klass; // Klass object | |
849 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) | |
850 bool _klass_is_exact; | |
163 | 851 bool _is_ptr_to_narrowoop; |
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852 bool _is_ptr_to_narrowklass; |
10278 | 853 bool _is_ptr_to_boxed_value; |
0 | 854 |
223 | 855 // If not InstanceTop or InstanceBot, indicates that this is |
856 // a particular instance of this type which is distinct. | |
857 // This is the the node index of the allocation node creating this instance. | |
858 int _instance_id; | |
0 | 859 |
12966 | 860 // Extra type information profiling gave us. We propagate it the |
861 // same way the rest of the type info is propagated. If we want to | |
862 // use it, then we have to emit a guard: this part of the type is | |
863 // not something we know but something we speculate about the type. | |
864 const TypeOopPtr* _speculative; | |
865 | |
0 | 866 static const TypeOopPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); |
867 | |
223 | 868 int dual_instance_id() const; |
869 int meet_instance_id(int uid) const; | |
0 | 870 |
12966 | 871 // utility methods to work on the speculative part of the type |
872 const TypeOopPtr* dual_speculative() const; | |
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873 const TypeOopPtr* xmeet_speculative(const TypeOopPtr* other) const; |
12966 | 874 bool eq_speculative(const TypeOopPtr* other) const; |
875 int hash_speculative() const; | |
876 const TypeOopPtr* add_offset_speculative(intptr_t offset) const; | |
877 #ifndef PRODUCT | |
878 void dump_speculative(outputStream *st) const; | |
879 #endif | |
880 | |
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881 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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882 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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883 |
0 | 884 public: |
885 // Creates a type given a klass. Correctly handles multi-dimensional arrays | |
886 // Respects UseUniqueSubclasses. | |
887 // If the klass is final, the resulting type will be exact. | |
888 static const TypeOopPtr* make_from_klass(ciKlass* klass) { | |
889 return make_from_klass_common(klass, true, false); | |
890 } | |
891 // Same as before, but will produce an exact type, even if | |
892 // the klass is not final, as long as it has exactly one implementation. | |
893 static const TypeOopPtr* make_from_klass_unique(ciKlass* klass) { | |
894 return make_from_klass_common(klass, true, true); | |
895 } | |
896 // Same as before, but does not respects UseUniqueSubclasses. | |
897 // Use this only for creating array element types. | |
898 static const TypeOopPtr* make_from_klass_raw(ciKlass* klass) { | |
899 return make_from_klass_common(klass, false, false); | |
900 } | |
901 // Creates a singleton type given an object. | |
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902 // If the object cannot be rendered as a constant, |
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903 // may return a non-singleton type. |
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904 // If require_constant, produce a NULL if a singleton is not possible. |
10278 | 905 static const TypeOopPtr* make_from_constant(ciObject* o, |
906 bool require_constant = false, | |
907 bool not_null_elements = false); | |
0 | 908 |
909 // Make a generic (unclassed) pointer to an oop. | |
12966 | 910 static const TypeOopPtr* make(PTR ptr, int offset, int instance_id, const TypeOopPtr* speculative); |
0 | 911 |
912 ciObject* const_oop() const { return _const_oop; } | |
913 virtual ciKlass* klass() const { return _klass; } | |
914 bool klass_is_exact() const { return _klass_is_exact; } | |
163 | 915 |
916 // Returns true if this pointer points at memory which contains a | |
917 // compressed oop references. | |
918 bool is_ptr_to_narrowoop_nv() const { return _is_ptr_to_narrowoop; } | |
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919 bool is_ptr_to_narrowklass_nv() const { return _is_ptr_to_narrowklass; } |
10278 | 920 bool is_ptr_to_boxed_value() const { return _is_ptr_to_boxed_value; } |
223 | 921 bool is_known_instance() const { return _instance_id > 0; } |
922 int instance_id() const { return _instance_id; } | |
923 bool is_known_instance_field() const { return is_known_instance() && _offset >= 0; } | |
12966 | 924 const TypeOopPtr* speculative() const { return _speculative; } |
0 | 925 |
926 virtual intptr_t get_con() const; | |
927 | |
928 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
929 | |
930 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
931 | |
223 | 932 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
0 | 933 |
934 // corresponding pointer to klass, for a given instance | |
935 const TypeKlassPtr* as_klass_type() const; | |
936 | |
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937 virtual const TypePtr *add_offset( intptr_t offset ) const; |
12966 | 938 // Return same type without a speculative part |
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939 virtual const Type* remove_speculative() const; |
0 | 940 |
12966 | 941 virtual const Type *xmeet(const Type *t) const; |
0 | 942 virtual const Type *xdual() const; // Compute dual right now. |
12966 | 943 // the core of the computation of the meet for TypeOopPtr and for its subclasses |
944 virtual const Type *xmeet_helper(const Type *t) const; | |
0 | 945 |
946 // Convenience common pre-built type. | |
947 static const TypeOopPtr *BOTTOM; | |
948 #ifndef PRODUCT | |
949 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
950 #endif | |
12966 | 951 |
952 // Return the speculative type if any | |
953 ciKlass* speculative_type() const { | |
954 if (_speculative != NULL) { | |
955 const TypeOopPtr* speculative = _speculative->join(this)->is_oopptr(); | |
956 if (speculative->klass_is_exact()) { | |
957 return speculative->klass(); | |
958 } | |
959 } | |
960 return NULL; | |
961 } | |
0 | 962 }; |
963 | |
964 //------------------------------TypeInstPtr------------------------------------ | |
965 // Class of Java object pointers, pointing either to non-array Java instances | |
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966 // or to a Klass* (including array klasses). |
0 | 967 class TypeInstPtr : public TypeOopPtr { |
12966 | 968 TypeInstPtr(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id, const TypeOopPtr* speculative); |
0 | 969 virtual bool eq( const Type *t ) const; |
970 virtual int hash() const; // Type specific hashing | |
971 | |
972 ciSymbol* _name; // class name | |
973 | |
974 public: | |
975 ciSymbol* name() const { return _name; } | |
976 | |
977 bool is_loaded() const { return _klass->is_loaded(); } | |
978 | |
979 // Make a pointer to a constant oop. | |
980 static const TypeInstPtr *make(ciObject* o) { | |
12966 | 981 return make(TypePtr::Constant, o->klass(), true, o, 0, InstanceBot); |
0 | 982 } |
983 // Make a pointer to a constant oop with offset. | |
984 static const TypeInstPtr *make(ciObject* o, int offset) { | |
12966 | 985 return make(TypePtr::Constant, o->klass(), true, o, offset, InstanceBot); |
0 | 986 } |
987 | |
988 // Make a pointer to some value of type klass. | |
989 static const TypeInstPtr *make(PTR ptr, ciKlass* klass) { | |
12966 | 990 return make(ptr, klass, false, NULL, 0, InstanceBot); |
0 | 991 } |
992 | |
993 // Make a pointer to some non-polymorphic value of exactly type klass. | |
994 static const TypeInstPtr *make_exact(PTR ptr, ciKlass* klass) { | |
12966 | 995 return make(ptr, klass, true, NULL, 0, InstanceBot); |
0 | 996 } |
997 | |
998 // Make a pointer to some value of type klass with offset. | |
999 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, int offset) { | |
12966 | 1000 return make(ptr, klass, false, NULL, offset, InstanceBot); |
0 | 1001 } |
1002 | |
1003 // Make a pointer to an oop. | |
12966 | 1004 static const TypeInstPtr *make(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id = InstanceBot, const TypeOopPtr* speculative = NULL); |
0 | 1005 |
10278 | 1006 /** Create constant type for a constant boxed value */ |
1007 const Type* get_const_boxed_value() const; | |
1008 | |
0 | 1009 // If this is a java.lang.Class constant, return the type for it or NULL. |
1010 // Pass to Type::get_const_type to turn it to a type, which will usually | |
1011 // be a TypeInstPtr, but may also be a TypeInt::INT for int.class, etc. | |
1012 ciType* java_mirror_type() const; | |
1013 | |
1014 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
1015 | |
1016 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
1017 | |
223 | 1018 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
0 | 1019 |
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1020 virtual const TypePtr *add_offset( intptr_t offset ) const; |
12966 | 1021 // Return same type without a speculative part |
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1022 virtual const Type* remove_speculative() const; |
0 | 1023 |
12966 | 1024 // the core of the computation of the meet of 2 types |
1025 virtual const Type *xmeet_helper(const Type *t) const; | |
0 | 1026 virtual const TypeInstPtr *xmeet_unloaded( const TypeInstPtr *t ) const; |
1027 virtual const Type *xdual() const; // Compute dual right now. | |
1028 | |
1029 // Convenience common pre-built types. | |
1030 static const TypeInstPtr *NOTNULL; | |
1031 static const TypeInstPtr *BOTTOM; | |
1032 static const TypeInstPtr *MIRROR; | |
1033 static const TypeInstPtr *MARK; | |
1034 static const TypeInstPtr *KLASS; | |
1035 #ifndef PRODUCT | |
1036 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
1037 #endif | |
1038 }; | |
1039 | |
1040 //------------------------------TypeAryPtr------------------------------------- | |
1041 // Class of Java array pointers | |
1042 class TypeAryPtr : public TypeOopPtr { | |
10278 | 1043 TypeAryPtr( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, |
12966 | 1044 int offset, int instance_id, bool is_autobox_cache, const TypeOopPtr* speculative) |
1045 : TypeOopPtr(AryPtr,ptr,k,xk,o,offset, instance_id, speculative), | |
10278 | 1046 _ary(ary), |
1047 _is_autobox_cache(is_autobox_cache) | |
1048 { | |
1761 | 1049 #ifdef ASSERT |
1050 if (k != NULL) { | |
1051 // Verify that specified klass and TypeAryPtr::klass() follow the same rules. | |
1052 ciKlass* ck = compute_klass(true); | |
1792 | 1053 if (k != ck) { |
1761 | 1054 this->dump(); tty->cr(); |
1055 tty->print(" k: "); | |
1056 k->print(); tty->cr(); | |
1057 tty->print("ck: "); | |
1058 if (ck != NULL) ck->print(); | |
1059 else tty->print("<NULL>"); | |
1060 tty->cr(); | |
1061 assert(false, "unexpected TypeAryPtr::_klass"); | |
1062 } | |
1063 } | |
1064 #endif | |
1065 } | |
0 | 1066 virtual bool eq( const Type *t ) const; |
1067 virtual int hash() const; // Type specific hashing | |
1068 const TypeAry *_ary; // Array we point into | |
10278 | 1069 const bool _is_autobox_cache; |
0 | 1070 |
1761 | 1071 ciKlass* compute_klass(DEBUG_ONLY(bool verify = false)) const; |
1072 | |
0 | 1073 public: |
1074 // Accessors | |
1075 ciKlass* klass() const; | |
1076 const TypeAry* ary() const { return _ary; } | |
1077 const Type* elem() const { return _ary->_elem; } | |
1078 const TypeInt* size() const { return _ary->_size; } | |
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1079 bool is_stable() const { return _ary->_stable; } |
0 | 1080 |
10278 | 1081 bool is_autobox_cache() const { return _is_autobox_cache; } |
1082 | |
12966 | 1083 static const TypeAryPtr *make( PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id = InstanceBot, const TypeOopPtr* speculative = NULL); |
0 | 1084 // Constant pointer to array |
12966 | 1085 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 | 1086 |
1087 // Return a 'ptr' version of this type | |
1088 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
1089 | |
1090 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
1091 | |
223 | 1092 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
0 | 1093 |
1094 virtual const TypeAryPtr* cast_to_size(const TypeInt* size) const; | |
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1095 virtual const TypeInt* narrow_size_type(const TypeInt* size) const; |
0 | 1096 |
1097 virtual bool empty(void) const; // TRUE if type is vacuous | |
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1098 virtual const TypePtr *add_offset( intptr_t offset ) const; |
12966 | 1099 // Return same type without a speculative part |
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1100 virtual const Type* remove_speculative() const; |
0 | 1101 |
12966 | 1102 // the core of the computation of the meet of 2 types |
1103 virtual const Type *xmeet_helper(const Type *t) const; | |
0 | 1104 virtual const Type *xdual() const; // Compute dual right now. |
1105 | |
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1106 const TypeAryPtr* cast_to_stable(bool stable, int stable_dimension = 1) const; |
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1107 int stable_dimension() const; |
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1108 |
0 | 1109 // Convenience common pre-built types. |
1110 static const TypeAryPtr *RANGE; | |
1111 static const TypeAryPtr *OOPS; | |
163 | 1112 static const TypeAryPtr *NARROWOOPS; |
0 | 1113 static const TypeAryPtr *BYTES; |
1114 static const TypeAryPtr *SHORTS; | |
1115 static const TypeAryPtr *CHARS; | |
1116 static const TypeAryPtr *INTS; | |
1117 static const TypeAryPtr *LONGS; | |
1118 static const TypeAryPtr *FLOATS; | |
1119 static const TypeAryPtr *DOUBLES; | |
1120 // selects one of the above: | |
1121 static const TypeAryPtr *get_array_body_type(BasicType elem) { | |
1122 assert((uint)elem <= T_CONFLICT && _array_body_type[elem] != NULL, "bad elem type"); | |
1123 return _array_body_type[elem]; | |
1124 } | |
1125 static const TypeAryPtr *_array_body_type[T_CONFLICT+1]; | |
1126 // sharpen the type of an int which is used as an array size | |
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1127 #ifdef ASSERT |
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1128 // One type is interface, the other is oop |
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1129 virtual bool interface_vs_oop(const Type *t) const; |
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1130 #endif |
0 | 1131 #ifndef PRODUCT |
1132 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
1133 #endif | |
1134 }; | |
1135 | |
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1136 //------------------------------TypeMetadataPtr------------------------------------- |
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1137 // Some kind of metadata, either Method*, MethodData* or CPCacheOop |
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1138 class TypeMetadataPtr : public TypePtr { |
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1139 protected: |
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1140 TypeMetadataPtr(PTR ptr, ciMetadata* metadata, int offset); |
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1141 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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1142 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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1143 public: |
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1144 virtual bool eq( const Type *t ) const; |
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1145 virtual int hash() const; // Type specific hashing |
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1146 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1147 |
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1148 private: |
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1149 ciMetadata* _metadata; |
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1150 |
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1151 public: |
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1152 static const TypeMetadataPtr* make(PTR ptr, ciMetadata* m, int offset); |
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1153 |
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1154 static const TypeMetadataPtr* make(ciMethod* m); |
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1155 static const TypeMetadataPtr* make(ciMethodData* m); |
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1156 |
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1157 ciMetadata* metadata() const { return _metadata; } |
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1158 |
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1159 virtual const Type *cast_to_ptr_type(PTR ptr) const; |
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1160 |
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1161 virtual const TypePtr *add_offset( intptr_t offset ) const; |
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1162 |
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1163 virtual const Type *xmeet( const Type *t ) const; |
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1164 virtual const Type *xdual() const; // Compute dual right now. |
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1165 |
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1166 virtual intptr_t get_con() const; |
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1167 |
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1168 // Convenience common pre-built types. |
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1169 static const TypeMetadataPtr *BOTTOM; |
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1170 |
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1171 #ifndef PRODUCT |
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1172 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1173 #endif |
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1174 }; |
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1175 |
0 | 1176 //------------------------------TypeKlassPtr----------------------------------- |
1177 // Class of Java Klass pointers | |
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1178 class TypeKlassPtr : public TypePtr { |
0 | 1179 TypeKlassPtr( PTR ptr, ciKlass* klass, int offset ); |
1180 | |
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1181 protected: |
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1182 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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1183 public: |
0 | 1184 virtual bool eq( const Type *t ) const; |
1185 virtual int hash() const; // Type specific hashing | |
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1186 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1187 private: |
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1188 |
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1189 static const TypeKlassPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); |
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1190 |
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1191 ciKlass* _klass; |
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1192 |
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1193 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) |
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1194 bool _klass_is_exact; |
0 | 1195 |
1196 public: | |
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1197 ciSymbol* name() const { return klass()->name(); } |
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1198 |
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1199 ciKlass* klass() const { return _klass; } |
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1200 bool klass_is_exact() const { return _klass_is_exact; } |
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1201 |
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1202 bool is_loaded() const { return klass()->is_loaded(); } |
0 | 1203 |
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1204 // Creates a type given a klass. Correctly handles multi-dimensional arrays |
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1205 // Respects UseUniqueSubclasses. |
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1206 // If the klass is final, the resulting type will be exact. |
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1207 static const TypeKlassPtr* make_from_klass(ciKlass* klass) { |
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1208 return make_from_klass_common(klass, true, false); |
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1209 } |
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1210 // Same as before, but will produce an exact type, even if |
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1211 // the klass is not final, as long as it has exactly one implementation. |
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1212 static const TypeKlassPtr* make_from_klass_unique(ciKlass* klass) { |
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1213 return make_from_klass_common(klass, true, true); |
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1214 } |
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1215 // Same as before, but does not respects UseUniqueSubclasses. |
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1216 // Use this only for creating array element types. |
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1217 static const TypeKlassPtr* make_from_klass_raw(ciKlass* klass) { |
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1218 return make_from_klass_common(klass, false, false); |
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1219 } |
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1220 |
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1221 // Make a generic (unclassed) pointer to metadata. |
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1222 static const TypeKlassPtr* make(PTR ptr, int offset); |
555 | 1223 |
0 | 1224 // ptr to klass 'k' |
1225 static const TypeKlassPtr *make( ciKlass* k ) { return make( TypePtr::Constant, k, 0); } | |
1226 // ptr to klass 'k' with offset | |
1227 static const TypeKlassPtr *make( ciKlass* k, int offset ) { return make( TypePtr::Constant, k, offset); } | |
1228 // ptr to klass 'k' or sub-klass | |
1229 static const TypeKlassPtr *make( PTR ptr, ciKlass* k, int offset); | |
1230 | |
1231 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
1232 | |
1233 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
1234 | |
1235 // corresponding pointer to instance, for a given class | |
1236 const TypeOopPtr* as_instance_type() const; | |
1237 | |
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1238 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 1239 virtual const Type *xmeet( const Type *t ) const; |
1240 virtual const Type *xdual() const; // Compute dual right now. | |
1241 | |
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1242 virtual intptr_t get_con() const; |
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1243 |
0 | 1244 // Convenience common pre-built types. |
1245 static const TypeKlassPtr* OBJECT; // Not-null object klass or below | |
1246 static const TypeKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same | |
1247 #ifndef PRODUCT | |
1248 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
1249 #endif | |
1250 }; | |
1251 | |
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1252 class TypeNarrowPtr : public Type { |
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1253 protected: |
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1254 const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR |
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1255 |
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1256 TypeNarrowPtr(TYPES t, const TypePtr* ptrtype): _ptrtype(ptrtype), |
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1257 Type(t) { |
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1258 assert(ptrtype->offset() == 0 || |
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1259 ptrtype->offset() == OffsetBot || |
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1260 ptrtype->offset() == OffsetTop, "no real offsets"); |
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1261 } |
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1262 |
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1263 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const = 0; |
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1264 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const = 0; |
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1265 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const = 0; |
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1266 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const = 0; |
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1267 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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1268 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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1269 public: |
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1270 virtual bool eq( const Type *t ) const; |
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1271 virtual int hash() const; // Type specific hashing |
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1272 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1273 |
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1274 virtual const Type *xmeet( const Type *t ) const; |
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1275 virtual const Type *xdual() const; // Compute dual right now. |
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1276 |
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1277 virtual intptr_t get_con() const; |
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1278 |
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1279 virtual bool empty(void) const; // TRUE if type is vacuous |
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1280 |
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1281 // returns the equivalent ptr type for this compressed pointer |
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1282 const TypePtr *get_ptrtype() const { |
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1283 return _ptrtype; |
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1284 } |
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1285 |
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1286 #ifndef PRODUCT |
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1287 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1288 #endif |
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1289 }; |
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1290 |
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1291 //------------------------------TypeNarrowOop---------------------------------- |
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1292 // A compressed reference to some kind of Oop. This type wraps around |
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1293 // a preexisting TypeOopPtr and forwards most of it's operations to |
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1294 // the underlying type. It's only real purpose is to track the |
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1295 // oopness of the compressed oop value when we expose the conversion |
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1296 // between the normal and the compressed form. |
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1297 class TypeNarrowOop : public TypeNarrowPtr { |
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1298 protected: |
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1299 TypeNarrowOop( const TypePtr* ptrtype): TypeNarrowPtr(NarrowOop, ptrtype) { |
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1300 } |
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1301 |
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1302 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { |
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1303 return t->isa_narrowoop(); |
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1304 } |
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1305 |
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1306 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { |
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1307 return t->is_narrowoop(); |
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1308 } |
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1309 |
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1310 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { |
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1311 return new TypeNarrowOop(t); |
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1312 } |
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1313 |
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1314 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { |
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1315 return (const TypeNarrowPtr*)((new TypeNarrowOop(t))->hashcons()); |
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1316 } |
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1317 |
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1318 public: |
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1319 |
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1320 static const TypeNarrowOop *make( const TypePtr* type); |
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1321 |
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1322 static const TypeNarrowOop* make_from_constant(ciObject* con, bool require_constant = false) { |
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1323 return make(TypeOopPtr::make_from_constant(con, require_constant)); |
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1324 } |
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1325 |
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1326 static const TypeNarrowOop *BOTTOM; |
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1327 static const TypeNarrowOop *NULL_PTR; |
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1328 |
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1329 virtual const Type* remove_speculative() const { |
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1330 return make(_ptrtype->remove_speculative()->is_ptr()); |
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1331 } |
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1332 |
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1333 #ifndef PRODUCT |
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1334 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1335 #endif |
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1336 }; |
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1337 |
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1338 //------------------------------TypeNarrowKlass---------------------------------- |
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1339 // A compressed reference to klass pointer. This type wraps around a |
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1340 // preexisting TypeKlassPtr and forwards most of it's operations to |
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1341 // the underlying type. |
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1342 class TypeNarrowKlass : public TypeNarrowPtr { |
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1343 protected: |
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1344 TypeNarrowKlass( const TypePtr* ptrtype): TypeNarrowPtr(NarrowKlass, ptrtype) { |
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1345 } |
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1346 |
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1347 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { |
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1348 return t->isa_narrowklass(); |
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1349 } |
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1350 |
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1351 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { |
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1352 return t->is_narrowklass(); |
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1353 } |
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1354 |
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1355 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { |
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1356 return new TypeNarrowKlass(t); |
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1357 } |
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1358 |
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1359 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { |
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1360 return (const TypeNarrowPtr*)((new TypeNarrowKlass(t))->hashcons()); |
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1361 } |
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1362 |
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1363 public: |
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1364 static const TypeNarrowKlass *make( const TypePtr* type); |
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1365 |
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1366 // static const TypeNarrowKlass *BOTTOM; |
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1367 static const TypeNarrowKlass *NULL_PTR; |
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1368 |
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1369 #ifndef PRODUCT |
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1370 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1371 #endif |
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1372 }; |
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1373 |
0 | 1374 //------------------------------TypeFunc--------------------------------------- |
1375 // Class of Array Types | |
1376 class TypeFunc : public Type { | |
1377 TypeFunc( const TypeTuple *domain, const TypeTuple *range ) : Type(Function), _domain(domain), _range(range) {} | |
1378 virtual bool eq( const Type *t ) const; | |
1379 virtual int hash() const; // Type specific hashing | |
1380 virtual bool singleton(void) const; // TRUE if type is a singleton | |
1381 virtual bool empty(void) const; // TRUE if type is vacuous | |
1382 public: | |
1383 // Constants are shared among ADLC and VM | |
1384 enum { Control = AdlcVMDeps::Control, | |
1385 I_O = AdlcVMDeps::I_O, | |
1386 Memory = AdlcVMDeps::Memory, | |
1387 FramePtr = AdlcVMDeps::FramePtr, | |
1388 ReturnAdr = AdlcVMDeps::ReturnAdr, | |
1389 Parms = AdlcVMDeps::Parms | |
1390 }; | |
1391 | |
1392 const TypeTuple* const _domain; // Domain of inputs | |
1393 const TypeTuple* const _range; // Range of results | |
1394 | |
1395 // Accessors: | |
1396 const TypeTuple* domain() const { return _domain; } | |
1397 const TypeTuple* range() const { return _range; } | |
1398 | |
1399 static const TypeFunc *make(ciMethod* method); | |
1400 static const TypeFunc *make(ciSignature signature, const Type* extra); | |
1401 static const TypeFunc *make(const TypeTuple* domain, const TypeTuple* range); | |
1402 | |
1403 virtual const Type *xmeet( const Type *t ) const; | |
1404 virtual const Type *xdual() const; // Compute dual right now. | |
1405 | |
1406 BasicType return_type() const; | |
1407 | |
1408 #ifndef PRODUCT | |
1409 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
1410 #endif | |
1411 // Convenience common pre-built types. | |
1412 }; | |
1413 | |
1414 //------------------------------accessors-------------------------------------- | |
163 | 1415 inline bool Type::is_ptr_to_narrowoop() const { |
1416 #ifdef _LP64 | |
1417 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowoop_nv()); | |
1418 #else | |
1419 return false; | |
1420 #endif | |
1421 } | |
1422 | |
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1423 inline bool Type::is_ptr_to_narrowklass() const { |
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1424 #ifdef _LP64 |
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1425 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowklass_nv()); |
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1426 #else |
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1427 return false; |
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1428 #endif |
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1429 } |
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1430 |
0 | 1431 inline float Type::getf() const { |
1432 assert( _base == FloatCon, "Not a FloatCon" ); | |
1433 return ((TypeF*)this)->_f; | |
1434 } | |
1435 | |
1436 inline double Type::getd() const { | |
1437 assert( _base == DoubleCon, "Not a DoubleCon" ); | |
1438 return ((TypeD*)this)->_d; | |
1439 } | |
1440 | |
1441 inline const TypeInt *Type::is_int() const { | |
1442 assert( _base == Int, "Not an Int" ); | |
1443 return (TypeInt*)this; | |
1444 } | |
1445 | |
1446 inline const TypeInt *Type::isa_int() const { | |
1447 return ( _base == Int ? (TypeInt*)this : NULL); | |
1448 } | |
1449 | |
1450 inline const TypeLong *Type::is_long() const { | |
1451 assert( _base == Long, "Not a Long" ); | |
1452 return (TypeLong*)this; | |
1453 } | |
1454 | |
1455 inline const TypeLong *Type::isa_long() const { | |
1456 return ( _base == Long ? (TypeLong*)this : NULL); | |
1457 } | |
1458 | |
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1459 inline const TypeF *Type::isa_float() const { |
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1460 return ((_base == FloatTop || |
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1461 _base == FloatCon || |
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1462 _base == FloatBot) ? (TypeF*)this : NULL); |
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1463 } |
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1464 |
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1465 inline const TypeF *Type::is_float_constant() const { |
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1466 assert( _base == FloatCon, "Not a Float" ); |
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1467 return (TypeF*)this; |
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1468 } |
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1469 |
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1470 inline const TypeF *Type::isa_float_constant() const { |
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1471 return ( _base == FloatCon ? (TypeF*)this : NULL); |
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1472 } |
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1473 |
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1474 inline const TypeD *Type::isa_double() const { |
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1475 return ((_base == DoubleTop || |
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1476 _base == DoubleCon || |
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1477 _base == DoubleBot) ? (TypeD*)this : NULL); |
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1478 } |
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1479 |
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1480 inline const TypeD *Type::is_double_constant() const { |
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1481 assert( _base == DoubleCon, "Not a Double" ); |
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1482 return (TypeD*)this; |
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1483 } |
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1484 |
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1485 inline const TypeD *Type::isa_double_constant() const { |
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1486 return ( _base == DoubleCon ? (TypeD*)this : NULL); |
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1487 } |
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1488 |
0 | 1489 inline const TypeTuple *Type::is_tuple() const { |
1490 assert( _base == Tuple, "Not a Tuple" ); | |
1491 return (TypeTuple*)this; | |
1492 } | |
1493 | |
1494 inline const TypeAry *Type::is_ary() const { | |
1495 assert( _base == Array , "Not an Array" ); | |
1496 return (TypeAry*)this; | |
1497 } | |
1498 | |
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1499 inline const TypeVect *Type::is_vect() const { |
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1500 assert( _base >= VectorS && _base <= VectorY, "Not a Vector" ); |
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1501 return (TypeVect*)this; |
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1502 } |
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1503 |
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1504 inline const TypeVect *Type::isa_vect() const { |
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1505 return (_base >= VectorS && _base <= VectorY) ? (TypeVect*)this : NULL; |
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1506 } |
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1507 |
0 | 1508 inline const TypePtr *Type::is_ptr() const { |
1509 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
1510 assert(_base >= AnyPtr && _base <= KlassPtr, "Not a pointer"); | |
1511 return (TypePtr*)this; | |
1512 } | |
1513 | |
1514 inline const TypePtr *Type::isa_ptr() const { | |
1515 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
1516 return (_base >= AnyPtr && _base <= KlassPtr) ? (TypePtr*)this : NULL; | |
1517 } | |
1518 | |
1519 inline const TypeOopPtr *Type::is_oopptr() const { | |
1520 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
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1521 assert(_base >= OopPtr && _base <= AryPtr, "Not a Java pointer" ) ; |
0 | 1522 return (TypeOopPtr*)this; |
1523 } | |
1524 | |
1525 inline const TypeOopPtr *Type::isa_oopptr() const { | |
1526 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
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1527 return (_base >= OopPtr && _base <= AryPtr) ? (TypeOopPtr*)this : NULL; |
0 | 1528 } |
1529 | |
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1530 inline const TypeRawPtr *Type::isa_rawptr() const { |
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1531 return (_base == RawPtr) ? (TypeRawPtr*)this : NULL; |
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1532 } |
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1533 |
0 | 1534 inline const TypeRawPtr *Type::is_rawptr() const { |
1535 assert( _base == RawPtr, "Not a raw pointer" ); | |
1536 return (TypeRawPtr*)this; | |
1537 } | |
1538 | |
1539 inline const TypeInstPtr *Type::isa_instptr() const { | |
1540 return (_base == InstPtr) ? (TypeInstPtr*)this : NULL; | |
1541 } | |
1542 | |
1543 inline const TypeInstPtr *Type::is_instptr() const { | |
1544 assert( _base == InstPtr, "Not an object pointer" ); | |
1545 return (TypeInstPtr*)this; | |
1546 } | |
1547 | |
1548 inline const TypeAryPtr *Type::isa_aryptr() const { | |
1549 return (_base == AryPtr) ? (TypeAryPtr*)this : NULL; | |
1550 } | |
1551 | |
1552 inline const TypeAryPtr *Type::is_aryptr() const { | |
1553 assert( _base == AryPtr, "Not an array pointer" ); | |
1554 return (TypeAryPtr*)this; | |
1555 } | |
1556 | |
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1557 inline const TypeNarrowOop *Type::is_narrowoop() const { |
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1558 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
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1559 assert(_base == NarrowOop, "Not a narrow oop" ) ; |
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1560 return (TypeNarrowOop*)this; |
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1561 } |
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1562 |
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1563 inline const TypeNarrowOop *Type::isa_narrowoop() const { |
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1564 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
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1565 return (_base == NarrowOop) ? (TypeNarrowOop*)this : NULL; |
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1566 } |
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1567 |
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1568 inline const TypeNarrowKlass *Type::is_narrowklass() const { |
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1569 assert(_base == NarrowKlass, "Not a narrow oop" ) ; |
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1570 return (TypeNarrowKlass*)this; |
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1571 } |
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1572 |
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1573 inline const TypeNarrowKlass *Type::isa_narrowklass() const { |
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1574 return (_base == NarrowKlass) ? (TypeNarrowKlass*)this : NULL; |
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1575 } |
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1576 |
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1577 inline const TypeMetadataPtr *Type::is_metadataptr() const { |
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1578 // MetadataPtr is the first and CPCachePtr the last |
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1579 assert(_base == MetadataPtr, "Not a metadata pointer" ) ; |
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1580 return (TypeMetadataPtr*)this; |
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1581 } |
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1582 |
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1583 inline const TypeMetadataPtr *Type::isa_metadataptr() const { |
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1584 return (_base == MetadataPtr) ? (TypeMetadataPtr*)this : NULL; |
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1585 } |
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1586 |
0 | 1587 inline const TypeKlassPtr *Type::isa_klassptr() const { |
1588 return (_base == KlassPtr) ? (TypeKlassPtr*)this : NULL; | |
1589 } | |
1590 | |
1591 inline const TypeKlassPtr *Type::is_klassptr() const { | |
1592 assert( _base == KlassPtr, "Not a klass pointer" ); | |
1593 return (TypeKlassPtr*)this; | |
1594 } | |
1595 | |
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1596 inline const TypePtr* Type::make_ptr() const { |
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1597 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype() : |
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1598 ((_base == NarrowKlass) ? is_narrowklass()->get_ptrtype() : |
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1599 (isa_ptr() ? is_ptr() : NULL)); |
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1600 } |
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1601 |
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1602 inline const TypeOopPtr* Type::make_oopptr() const { |
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1603 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->is_oopptr() : is_oopptr(); |
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1604 } |
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1605 |
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1606 inline const TypeNarrowOop* Type::make_narrowoop() const { |
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1607 return (_base == NarrowOop) ? is_narrowoop() : |
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1608 (isa_ptr() ? TypeNarrowOop::make(is_ptr()) : NULL); |
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1609 } |
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1610 |
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1611 inline const TypeNarrowKlass* Type::make_narrowklass() const { |
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1612 return (_base == NarrowKlass) ? is_narrowklass() : |
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1613 (isa_ptr() ? TypeNarrowKlass::make(is_ptr()) : NULL); |
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1614 } |
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1615 |
0 | 1616 inline bool Type::is_floatingpoint() const { |
1617 if( (_base == FloatCon) || (_base == FloatBot) || | |
1618 (_base == DoubleCon) || (_base == DoubleBot) ) | |
1619 return true; | |
1620 return false; | |
1621 } | |
1622 | |
10278 | 1623 inline bool Type::is_ptr_to_boxing_obj() const { |
1624 const TypeInstPtr* tp = isa_instptr(); | |
1625 return (tp != NULL) && (tp->offset() == 0) && | |
1626 tp->klass()->is_instance_klass() && | |
1627 tp->klass()->as_instance_klass()->is_box_klass(); | |
1628 } | |
1629 | |
0 | 1630 |
1631 // =============================================================== | |
1632 // Things that need to be 64-bits in the 64-bit build but | |
1633 // 32-bits in the 32-bit build. Done this way to get full | |
1634 // optimization AND strong typing. | |
1635 #ifdef _LP64 | |
1636 | |
1637 // For type queries and asserts | |
1638 #define is_intptr_t is_long | |
1639 #define isa_intptr_t isa_long | |
1640 #define find_intptr_t_type find_long_type | |
1641 #define find_intptr_t_con find_long_con | |
1642 #define TypeX TypeLong | |
1643 #define Type_X Type::Long | |
1644 #define TypeX_X TypeLong::LONG | |
1645 #define TypeX_ZERO TypeLong::ZERO | |
1646 // For 'ideal_reg' machine registers | |
1647 #define Op_RegX Op_RegL | |
1648 // For phase->intcon variants | |
1649 #define MakeConX longcon | |
1650 #define ConXNode ConLNode | |
1651 // For array index arithmetic | |
1652 #define MulXNode MulLNode | |
1653 #define AndXNode AndLNode | |
1654 #define OrXNode OrLNode | |
1655 #define CmpXNode CmpLNode | |
1656 #define SubXNode SubLNode | |
1657 #define LShiftXNode LShiftLNode | |
1658 // For object size computation: | |
1659 #define AddXNode AddLNode | |
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1660 #define RShiftXNode RShiftLNode |
0 | 1661 // For card marks and hashcodes |
1662 #define URShiftXNode URShiftLNode | |
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1663 // UseOptoBiasInlining |
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1664 #define XorXNode XorLNode |
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1665 #define StoreXConditionalNode StoreLConditionalNode |
0 | 1666 // Opcodes |
1667 #define Op_LShiftX Op_LShiftL | |
1668 #define Op_AndX Op_AndL | |
1669 #define Op_AddX Op_AddL | |
1670 #define Op_SubX Op_SubL | |
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1671 #define Op_XorX Op_XorL |
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1672 #define Op_URShiftX Op_URShiftL |
0 | 1673 // conversions |
1674 #define ConvI2X(x) ConvI2L(x) | |
1675 #define ConvL2X(x) (x) | |
1676 #define ConvX2I(x) ConvL2I(x) | |
1677 #define ConvX2L(x) (x) | |
1678 | |
1679 #else | |
1680 | |
1681 // For type queries and asserts | |
1682 #define is_intptr_t is_int | |
1683 #define isa_intptr_t isa_int | |
1684 #define find_intptr_t_type find_int_type | |
1685 #define find_intptr_t_con find_int_con | |
1686 #define TypeX TypeInt | |
1687 #define Type_X Type::Int | |
1688 #define TypeX_X TypeInt::INT | |
1689 #define TypeX_ZERO TypeInt::ZERO | |
1690 // For 'ideal_reg' machine registers | |
1691 #define Op_RegX Op_RegI | |
1692 // For phase->intcon variants | |
1693 #define MakeConX intcon | |
1694 #define ConXNode ConINode | |
1695 // For array index arithmetic | |
1696 #define MulXNode MulINode | |
1697 #define AndXNode AndINode | |
1698 #define OrXNode OrINode | |
1699 #define CmpXNode CmpINode | |
1700 #define SubXNode SubINode | |
1701 #define LShiftXNode LShiftINode | |
1702 // For object size computation: | |
1703 #define AddXNode AddINode | |
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1704 #define RShiftXNode RShiftINode |
0 | 1705 // For card marks and hashcodes |
1706 #define URShiftXNode URShiftINode | |
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1707 // UseOptoBiasInlining |
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1708 #define XorXNode XorINode |
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1709 #define StoreXConditionalNode StoreIConditionalNode |
0 | 1710 // Opcodes |
1711 #define Op_LShiftX Op_LShiftI | |
1712 #define Op_AndX Op_AndI | |
1713 #define Op_AddX Op_AddI | |
1714 #define Op_SubX Op_SubI | |
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1715 #define Op_XorX Op_XorI |
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1716 #define Op_URShiftX Op_URShiftI |
0 | 1717 // conversions |
1718 #define ConvI2X(x) (x) | |
1719 #define ConvL2X(x) ConvL2I(x) | |
1720 #define ConvX2I(x) (x) | |
1721 #define ConvX2L(x) ConvI2L(x) | |
1722 | |
1723 #endif | |
1972 | 1724 |
1725 #endif // SHARE_VM_OPTO_TYPE_HPP |