Mercurial > hg > graal-compiler
annotate src/share/vm/opto/type.hpp @ 7206:d2f8c38e543d
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #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; | |
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 | |
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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 | |
162 protected: | |
163 // Each class of type is also identified by its base. | |
164 const TYPES _base; // Enum of Types type | |
165 | |
166 Type( TYPES t ) : _dual(NULL), _base(t) {} // Simple types | |
167 // ~Type(); // Use fast deallocation | |
168 const Type *hashcons(); // Hash-cons the type | |
169 | |
170 public: | |
171 | |
172 inline void* operator new( size_t x ) { | |
173 Compile* compile = Compile::current(); | |
174 compile->set_type_last_size(x); | |
175 void *temp = compile->type_arena()->Amalloc_D(x); | |
176 compile->set_type_hwm(temp); | |
177 return temp; | |
178 } | |
179 inline void operator delete( void* ptr ) { | |
180 Compile* compile = Compile::current(); | |
181 compile->type_arena()->Afree(ptr,compile->type_last_size()); | |
182 } | |
183 | |
184 // Initialize the type system for a particular compilation. | |
185 static void Initialize(Compile* compile); | |
186 | |
187 // Initialize the types shared by all compilations. | |
188 static void Initialize_shared(Compile* compile); | |
189 | |
190 TYPES base() const { | |
191 assert(_base > Bad && _base < lastype, "sanity"); | |
192 return _base; | |
193 } | |
194 | |
195 // Create a new hash-consd type | |
196 static const Type *make(enum TYPES); | |
197 // Test for equivalence of types | |
198 static int cmp( const Type *const t1, const Type *const t2 ); | |
199 // Test for higher or equal in lattice | |
200 int higher_equal( const Type *t ) const { return !cmp(meet(t),t); } | |
201 | |
202 // MEET operation; lower in lattice. | |
203 const Type *meet( const Type *t ) const; | |
204 // WIDEN: 'widens' for Ints and other range types | |
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205 virtual const Type *widen( const Type *old, const Type* limit ) const { return this; } |
0 | 206 // NARROW: complement for widen, used by pessimistic phases |
207 virtual const Type *narrow( const Type *old ) const { return this; } | |
208 | |
209 // DUAL operation: reflect around lattice centerline. Used instead of | |
210 // join to ensure my lattice is symmetric up and down. | |
211 const Type *dual() const { return _dual; } | |
212 | |
213 // Compute meet dependent on base type | |
214 virtual const Type *xmeet( const Type *t ) const; | |
215 virtual const Type *xdual() const; // Compute dual right now. | |
216 | |
217 // JOIN operation; higher in lattice. Done by finding the dual of the | |
218 // meet of the dual of the 2 inputs. | |
219 const Type *join( const Type *t ) const { | |
220 return dual()->meet(t->dual())->dual(); } | |
221 | |
222 // Modified version of JOIN adapted to the needs Node::Value. | |
223 // Normalizes all empty values to TOP. Does not kill _widen bits. | |
224 // Currently, it also works around limitations involving interface types. | |
225 virtual const Type *filter( const Type *kills ) const; | |
226 | |
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227 #ifdef ASSERT |
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228 // One type is interface, the other is oop |
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229 virtual bool interface_vs_oop(const Type *t) const; |
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230 #endif |
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231 |
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232 // Returns true if this pointer points at memory which contains a |
163 | 233 // compressed oop references. |
234 bool is_ptr_to_narrowoop() const; | |
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235 bool is_ptr_to_narrowklass() const; |
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236 |
0 | 237 // Convenience access |
238 float getf() const; | |
239 double getd() const; | |
240 | |
241 const TypeInt *is_int() const; | |
242 const TypeInt *isa_int() const; // Returns NULL if not an Int | |
243 const TypeLong *is_long() const; | |
244 const TypeLong *isa_long() const; // Returns NULL if not a Long | |
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245 const TypeD *isa_double() const; // Returns NULL if not a Double{Top,Con,Bot} |
0 | 246 const TypeD *is_double_constant() const; // Asserts it is a DoubleCon |
247 const TypeD *isa_double_constant() const; // Returns NULL if not a DoubleCon | |
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248 const TypeF *isa_float() const; // Returns NULL if not a Float{Top,Con,Bot} |
0 | 249 const TypeF *is_float_constant() const; // Asserts it is a FloatCon |
250 const TypeF *isa_float_constant() const; // Returns NULL if not a FloatCon | |
251 const TypeTuple *is_tuple() const; // Collection of fields, NOT a pointer | |
252 const TypeAry *is_ary() const; // Array, NOT array pointer | |
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253 const TypeVect *is_vect() const; // Vector |
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254 const TypeVect *isa_vect() const; // Returns NULL if not a Vector |
0 | 255 const TypePtr *is_ptr() const; // Asserts it is a ptr type |
256 const TypePtr *isa_ptr() const; // Returns NULL if not ptr type | |
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257 const TypeRawPtr *isa_rawptr() const; // NOT Java oop |
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258 const TypeRawPtr *is_rawptr() const; // Asserts is rawptr |
163 | 259 const TypeNarrowOop *is_narrowoop() const; // Java-style GC'd pointer |
260 const TypeNarrowOop *isa_narrowoop() const; // Returns NULL if not oop ptr type | |
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261 const TypeNarrowKlass *is_narrowklass() const; // compressed klass pointer |
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262 const TypeNarrowKlass *isa_narrowklass() const;// Returns NULL if not oop ptr type |
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263 const TypeOopPtr *isa_oopptr() const; // Returns NULL if not oop ptr type |
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264 const TypeOopPtr *is_oopptr() const; // Java-style GC'd pointer |
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265 const TypeInstPtr *isa_instptr() const; // Returns NULL if not InstPtr |
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266 const TypeInstPtr *is_instptr() const; // Instance |
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267 const TypeAryPtr *isa_aryptr() const; // Returns NULL if not AryPtr |
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268 const TypeAryPtr *is_aryptr() const; // Array oop |
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269 |
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270 const TypeMetadataPtr *isa_metadataptr() const; // Returns NULL if not oop ptr type |
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271 const TypeMetadataPtr *is_metadataptr() const; // Java-style GC'd pointer |
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272 const TypeKlassPtr *isa_klassptr() const; // Returns NULL if not KlassPtr |
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273 const TypeKlassPtr *is_klassptr() const; // assert if not KlassPtr |
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274 |
0 | 275 virtual bool is_finite() const; // Has a finite value |
276 virtual bool is_nan() const; // Is not a number (NaN) | |
277 | |
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278 // Returns this ptr type or the equivalent ptr type for this compressed pointer. |
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279 const TypePtr* make_ptr() const; |
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280 |
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281 // Returns this oopptr type or the equivalent oopptr type for this compressed pointer. |
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282 // Asserts if the underlying type is not an oopptr or narrowoop. |
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283 const TypeOopPtr* make_oopptr() const; |
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284 |
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285 // Returns this compressed pointer or the equivalent compressed version |
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286 // of this pointer type. |
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287 const TypeNarrowOop* make_narrowoop() const; |
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288 |
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289 // Returns this compressed klass pointer or the equivalent |
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290 // compressed version of this pointer type. |
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291 const TypeNarrowKlass* make_narrowklass() const; |
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292 |
0 | 293 // Special test for register pressure heuristic |
294 bool is_floatingpoint() const; // True if Float or Double base type | |
295 | |
296 // Do you have memory, directly or through a tuple? | |
297 bool has_memory( ) const; | |
298 | |
299 // TRUE if type is a singleton | |
300 virtual bool singleton(void) const; | |
301 | |
302 // TRUE if type is above the lattice centerline, and is therefore vacuous | |
303 virtual bool empty(void) const; | |
304 | |
305 // Return a hash for this type. The hash function is public so ConNode | |
306 // (constants) can hash on their constant, which is represented by a Type. | |
307 virtual int hash() const; | |
308 | |
309 // Map ideal registers (machine types) to ideal types | |
310 static const Type *mreg2type[]; | |
311 | |
312 // Printing, statistics | |
313 #ifndef PRODUCT | |
314 void dump_on(outputStream *st) const; | |
315 void dump() const { | |
316 dump_on(tty); | |
317 } | |
318 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
319 static void dump_stats(); | |
320 #endif | |
321 void typerr(const Type *t) const; // Mixing types error | |
322 | |
323 // Create basic type | |
324 static const Type* get_const_basic_type(BasicType type) { | |
325 assert((uint)type <= T_CONFLICT && _const_basic_type[type] != NULL, "bad type"); | |
326 return _const_basic_type[type]; | |
327 } | |
328 | |
329 // Mapping to the array element's basic type. | |
330 BasicType array_element_basic_type() const; | |
331 | |
332 // Create standard type for a ciType: | |
333 static const Type* get_const_type(ciType* type); | |
334 | |
335 // Create standard zero value: | |
336 static const Type* get_zero_type(BasicType type) { | |
337 assert((uint)type <= T_CONFLICT && _zero_type[type] != NULL, "bad type"); | |
338 return _zero_type[type]; | |
339 } | |
340 | |
341 // Report if this is a zero value (not top). | |
342 bool is_zero_type() const { | |
343 BasicType type = basic_type(); | |
344 if (type == T_VOID || type >= T_CONFLICT) | |
345 return false; | |
346 else | |
347 return (this == _zero_type[type]); | |
348 } | |
349 | |
350 // Convenience common pre-built types. | |
351 static const Type *ABIO; | |
352 static const Type *BOTTOM; | |
353 static const Type *CONTROL; | |
354 static const Type *DOUBLE; | |
355 static const Type *FLOAT; | |
356 static const Type *HALF; | |
357 static const Type *MEMORY; | |
358 static const Type *MULTI; | |
359 static const Type *RETURN_ADDRESS; | |
360 static const Type *TOP; | |
361 | |
362 // Mapping from compiler type to VM BasicType | |
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363 BasicType basic_type() const { return _type_info[_base].basic_type; } |
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364 int ideal_reg() const { return _type_info[_base].ideal_reg; } |
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365 const char* msg() const { return _type_info[_base].msg; } |
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366 bool isa_oop_ptr() const { return _type_info[_base].isa_oop; } |
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367 relocInfo::relocType reloc() const { return _type_info[_base].reloc; } |
0 | 368 |
369 // Mapping from CI type system to compiler type: | |
370 static const Type* get_typeflow_type(ciType* type); | |
371 | |
372 private: | |
373 // support arrays | |
374 static const BasicType _basic_type[]; | |
375 static const Type* _zero_type[T_CONFLICT+1]; | |
376 static const Type* _const_basic_type[T_CONFLICT+1]; | |
377 }; | |
378 | |
379 //------------------------------TypeF------------------------------------------ | |
380 // Class of Float-Constant Types. | |
381 class TypeF : public Type { | |
382 TypeF( float f ) : Type(FloatCon), _f(f) {}; | |
383 public: | |
384 virtual bool eq( const Type *t ) const; | |
385 virtual int hash() const; // Type specific hashing | |
386 virtual bool singleton(void) const; // TRUE if type is a singleton | |
387 virtual bool empty(void) const; // TRUE if type is vacuous | |
388 public: | |
389 const float _f; // Float constant | |
390 | |
391 static const TypeF *make(float f); | |
392 | |
393 virtual bool is_finite() const; // Has a finite value | |
394 virtual bool is_nan() const; // Is not a number (NaN) | |
395 | |
396 virtual const Type *xmeet( const Type *t ) const; | |
397 virtual const Type *xdual() const; // Compute dual right now. | |
398 // Convenience common pre-built types. | |
399 static const TypeF *ZERO; // positive zero only | |
400 static const TypeF *ONE; | |
401 #ifndef PRODUCT | |
402 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
403 #endif | |
404 }; | |
405 | |
406 //------------------------------TypeD------------------------------------------ | |
407 // Class of Double-Constant Types. | |
408 class TypeD : public Type { | |
409 TypeD( double d ) : Type(DoubleCon), _d(d) {}; | |
410 public: | |
411 virtual bool eq( const Type *t ) const; | |
412 virtual int hash() const; // Type specific hashing | |
413 virtual bool singleton(void) const; // TRUE if type is a singleton | |
414 virtual bool empty(void) const; // TRUE if type is vacuous | |
415 public: | |
416 const double _d; // Double constant | |
417 | |
418 static const TypeD *make(double d); | |
419 | |
420 virtual bool is_finite() const; // Has a finite value | |
421 virtual bool is_nan() const; // Is not a number (NaN) | |
422 | |
423 virtual const Type *xmeet( const Type *t ) const; | |
424 virtual const Type *xdual() const; // Compute dual right now. | |
425 // Convenience common pre-built types. | |
426 static const TypeD *ZERO; // positive zero only | |
427 static const TypeD *ONE; | |
428 #ifndef PRODUCT | |
429 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
430 #endif | |
431 }; | |
432 | |
433 //------------------------------TypeInt---------------------------------------- | |
434 // Class of integer ranges, the set of integers between a lower bound and an | |
435 // upper bound, inclusive. | |
436 class TypeInt : public Type { | |
437 TypeInt( jint lo, jint hi, int w ); | |
438 public: | |
439 virtual bool eq( const Type *t ) const; | |
440 virtual int hash() const; // Type specific hashing | |
441 virtual bool singleton(void) const; // TRUE if type is a singleton | |
442 virtual bool empty(void) const; // TRUE if type is vacuous | |
443 public: | |
444 const jint _lo, _hi; // Lower bound, upper bound | |
445 const short _widen; // Limit on times we widen this sucker | |
446 | |
447 static const TypeInt *make(jint lo); | |
448 // must always specify w | |
449 static const TypeInt *make(jint lo, jint hi, int w); | |
450 | |
451 // Check for single integer | |
452 int is_con() const { return _lo==_hi; } | |
453 bool is_con(int i) const { return is_con() && _lo == i; } | |
454 jint get_con() const { assert( is_con(), "" ); return _lo; } | |
455 | |
456 virtual bool is_finite() const; // Has a finite value | |
457 | |
458 virtual const Type *xmeet( const Type *t ) const; | |
459 virtual const Type *xdual() const; // Compute dual right now. | |
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460 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
0 | 461 virtual const Type *narrow( const Type *t ) const; |
462 // Do not kill _widen bits. | |
463 virtual const Type *filter( const Type *kills ) const; | |
464 // Convenience common pre-built types. | |
465 static const TypeInt *MINUS_1; | |
466 static const TypeInt *ZERO; | |
467 static const TypeInt *ONE; | |
468 static const TypeInt *BOOL; | |
469 static const TypeInt *CC; | |
470 static const TypeInt *CC_LT; // [-1] == MINUS_1 | |
471 static const TypeInt *CC_GT; // [1] == ONE | |
472 static const TypeInt *CC_EQ; // [0] == ZERO | |
473 static const TypeInt *CC_LE; // [-1,0] | |
474 static const TypeInt *CC_GE; // [0,1] == BOOL (!) | |
475 static const TypeInt *BYTE; | |
624 | 476 static const TypeInt *UBYTE; |
0 | 477 static const TypeInt *CHAR; |
478 static const TypeInt *SHORT; | |
479 static const TypeInt *POS; | |
480 static const TypeInt *POS1; | |
481 static const TypeInt *INT; | |
482 static const TypeInt *SYMINT; // symmetric range [-max_jint..max_jint] | |
483 #ifndef PRODUCT | |
484 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
485 #endif | |
486 }; | |
487 | |
488 | |
489 //------------------------------TypeLong--------------------------------------- | |
490 // Class of long integer ranges, the set of integers between a lower bound and | |
491 // an upper bound, inclusive. | |
492 class TypeLong : public Type { | |
493 TypeLong( jlong lo, jlong hi, int w ); | |
494 public: | |
495 virtual bool eq( const Type *t ) const; | |
496 virtual int hash() const; // Type specific hashing | |
497 virtual bool singleton(void) const; // TRUE if type is a singleton | |
498 virtual bool empty(void) const; // TRUE if type is vacuous | |
499 public: | |
500 const jlong _lo, _hi; // Lower bound, upper bound | |
501 const short _widen; // Limit on times we widen this sucker | |
502 | |
503 static const TypeLong *make(jlong lo); | |
504 // must always specify w | |
505 static const TypeLong *make(jlong lo, jlong hi, int w); | |
506 | |
507 // Check for single integer | |
508 int is_con() const { return _lo==_hi; } | |
145 | 509 bool is_con(int i) const { return is_con() && _lo == i; } |
0 | 510 jlong get_con() const { assert( is_con(), "" ); return _lo; } |
511 | |
512 virtual bool is_finite() const; // Has a finite value | |
513 | |
514 virtual const Type *xmeet( const Type *t ) const; | |
515 virtual const Type *xdual() const; // Compute dual right now. | |
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516 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
0 | 517 virtual const Type *narrow( const Type *t ) const; |
518 // Do not kill _widen bits. | |
519 virtual const Type *filter( const Type *kills ) const; | |
520 // Convenience common pre-built types. | |
521 static const TypeLong *MINUS_1; | |
522 static const TypeLong *ZERO; | |
523 static const TypeLong *ONE; | |
524 static const TypeLong *POS; | |
525 static const TypeLong *LONG; | |
526 static const TypeLong *INT; // 32-bit subrange [min_jint..max_jint] | |
527 static const TypeLong *UINT; // 32-bit unsigned [0..max_juint] | |
528 #ifndef PRODUCT | |
529 virtual void dump2( Dict &d, uint, outputStream *st ) const;// Specialized per-Type dumping | |
530 #endif | |
531 }; | |
532 | |
533 //------------------------------TypeTuple-------------------------------------- | |
534 // Class of Tuple Types, essentially type collections for function signatures | |
535 // and class layouts. It happens to also be a fast cache for the HotSpot | |
536 // signature types. | |
537 class TypeTuple : public Type { | |
538 TypeTuple( uint cnt, const Type **fields ) : Type(Tuple), _cnt(cnt), _fields(fields) { } | |
539 public: | |
540 virtual bool eq( const Type *t ) const; | |
541 virtual int hash() const; // Type specific hashing | |
542 virtual bool singleton(void) const; // TRUE if type is a singleton | |
543 virtual bool empty(void) const; // TRUE if type is vacuous | |
544 | |
545 public: | |
546 const uint _cnt; // Count of fields | |
547 const Type ** const _fields; // Array of field types | |
548 | |
549 // Accessors: | |
550 uint cnt() const { return _cnt; } | |
551 const Type* field_at(uint i) const { | |
552 assert(i < _cnt, "oob"); | |
553 return _fields[i]; | |
554 } | |
555 void set_field_at(uint i, const Type* t) { | |
556 assert(i < _cnt, "oob"); | |
557 _fields[i] = t; | |
558 } | |
559 | |
560 static const TypeTuple *make( uint cnt, const Type **fields ); | |
561 static const TypeTuple *make_range(ciSignature *sig); | |
562 static const TypeTuple *make_domain(ciInstanceKlass* recv, ciSignature *sig); | |
563 | |
564 // Subroutine call type with space allocated for argument types | |
565 static const Type **fields( uint arg_cnt ); | |
566 | |
567 virtual const Type *xmeet( const Type *t ) const; | |
568 virtual const Type *xdual() const; // Compute dual right now. | |
569 // Convenience common pre-built types. | |
570 static const TypeTuple *IFBOTH; | |
571 static const TypeTuple *IFFALSE; | |
572 static const TypeTuple *IFTRUE; | |
573 static const TypeTuple *IFNEITHER; | |
574 static const TypeTuple *LOOPBODY; | |
575 static const TypeTuple *MEMBAR; | |
576 static const TypeTuple *STORECONDITIONAL; | |
577 static const TypeTuple *START_I2C; | |
578 static const TypeTuple *INT_PAIR; | |
579 static const TypeTuple *LONG_PAIR; | |
580 #ifndef PRODUCT | |
581 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
582 #endif | |
583 }; | |
584 | |
585 //------------------------------TypeAry---------------------------------------- | |
586 // Class of Array Types | |
587 class TypeAry : public Type { | |
588 TypeAry( const Type *elem, const TypeInt *size) : Type(Array), | |
589 _elem(elem), _size(size) {} | |
590 public: | |
591 virtual bool eq( const Type *t ) const; | |
592 virtual int hash() const; // Type specific hashing | |
593 virtual bool singleton(void) const; // TRUE if type is a singleton | |
594 virtual bool empty(void) const; // TRUE if type is vacuous | |
595 | |
596 private: | |
597 const Type *_elem; // Element type of array | |
598 const TypeInt *_size; // Elements in array | |
599 friend class TypeAryPtr; | |
600 | |
601 public: | |
602 static const TypeAry *make( const Type *elem, const TypeInt *size); | |
603 | |
604 virtual const Type *xmeet( const Type *t ) const; | |
605 virtual const Type *xdual() const; // Compute dual right now. | |
606 bool ary_must_be_exact() const; // true if arrays of such are never generic | |
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607 #ifdef ASSERT |
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608 // One type is interface, the other is oop |
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609 virtual bool interface_vs_oop(const Type *t) const; |
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610 #endif |
0 | 611 #ifndef PRODUCT |
612 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
613 #endif | |
614 }; | |
615 | |
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616 //------------------------------TypeVect--------------------------------------- |
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617 // Class of Vector Types |
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618 class TypeVect : public Type { |
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619 const Type* _elem; // Vector's element type |
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620 const uint _length; // Elements in vector (power of 2) |
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621 |
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622 protected: |
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623 TypeVect(TYPES t, const Type* elem, uint length) : Type(t), |
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624 _elem(elem), _length(length) {} |
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625 |
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626 public: |
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627 const Type* element_type() const { return _elem; } |
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628 BasicType element_basic_type() const { return _elem->array_element_basic_type(); } |
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629 uint length() const { return _length; } |
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630 uint length_in_bytes() const { |
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631 return _length * type2aelembytes(element_basic_type()); |
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632 } |
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633 |
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634 virtual bool eq(const Type *t) const; |
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635 virtual int hash() const; // Type specific hashing |
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636 virtual bool singleton(void) const; // TRUE if type is a singleton |
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637 virtual bool empty(void) const; // TRUE if type is vacuous |
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638 |
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639 static const TypeVect *make(const BasicType elem_bt, uint length) { |
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640 // Use bottom primitive type. |
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641 return make(get_const_basic_type(elem_bt), length); |
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642 } |
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643 // Used directly by Replicate nodes to construct singleton vector. |
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644 static const TypeVect *make(const Type* elem, uint length); |
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645 |
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646 virtual const Type *xmeet( const Type *t) const; |
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647 virtual const Type *xdual() const; // Compute dual right now. |
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648 |
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649 static const TypeVect *VECTS; |
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650 static const TypeVect *VECTD; |
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651 static const TypeVect *VECTX; |
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652 static const TypeVect *VECTY; |
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653 |
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654 #ifndef PRODUCT |
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655 virtual void dump2(Dict &d, uint, outputStream *st) const; // Specialized per-Type dumping |
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656 #endif |
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657 }; |
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658 |
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659 class TypeVectS : public TypeVect { |
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660 friend class TypeVect; |
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661 TypeVectS(const Type* elem, uint length) : TypeVect(VectorS, elem, length) {} |
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662 }; |
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663 |
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664 class TypeVectD : public TypeVect { |
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665 friend class TypeVect; |
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666 TypeVectD(const Type* elem, uint length) : TypeVect(VectorD, elem, length) {} |
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667 }; |
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668 |
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669 class TypeVectX : public TypeVect { |
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670 friend class TypeVect; |
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671 TypeVectX(const Type* elem, uint length) : TypeVect(VectorX, elem, length) {} |
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672 }; |
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673 |
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674 class TypeVectY : public TypeVect { |
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675 friend class TypeVect; |
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676 TypeVectY(const Type* elem, uint length) : TypeVect(VectorY, elem, length) {} |
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677 }; |
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678 |
0 | 679 //------------------------------TypePtr---------------------------------------- |
680 // Class of machine Pointer Types: raw data, instances or arrays. | |
681 // If the _base enum is AnyPtr, then this refers to all of the above. | |
682 // Otherwise the _base will indicate which subset of pointers is affected, | |
683 // and the class will be inherited from. | |
684 class TypePtr : public Type { | |
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685 friend class TypeNarrowPtr; |
0 | 686 public: |
687 enum PTR { TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, lastPTR }; | |
688 protected: | |
689 TypePtr( TYPES t, PTR ptr, int offset ) : Type(t), _ptr(ptr), _offset(offset) {} | |
690 virtual bool eq( const Type *t ) const; | |
691 virtual int hash() const; // Type specific hashing | |
692 static const PTR ptr_meet[lastPTR][lastPTR]; | |
693 static const PTR ptr_dual[lastPTR]; | |
694 static const char * const ptr_msg[lastPTR]; | |
695 | |
696 public: | |
697 const int _offset; // Offset into oop, with TOP & BOT | |
698 const PTR _ptr; // Pointer equivalence class | |
699 | |
700 const int offset() const { return _offset; } | |
701 const PTR ptr() const { return _ptr; } | |
702 | |
703 static const TypePtr *make( TYPES t, PTR ptr, int offset ); | |
704 | |
705 // Return a 'ptr' version of this type | |
706 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
707 | |
708 virtual intptr_t get_con() const; | |
709 | |
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710 int xadd_offset( intptr_t offset ) const; |
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711 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 712 |
713 virtual bool singleton(void) const; // TRUE if type is a singleton | |
714 virtual bool empty(void) const; // TRUE if type is vacuous | |
715 virtual const Type *xmeet( const Type *t ) const; | |
716 int meet_offset( int offset ) const; | |
717 int dual_offset( ) const; | |
718 virtual const Type *xdual() const; // Compute dual right now. | |
719 | |
720 // meet, dual and join over pointer equivalence sets | |
721 PTR meet_ptr( const PTR in_ptr ) const { return ptr_meet[in_ptr][ptr()]; } | |
722 PTR dual_ptr() const { return ptr_dual[ptr()]; } | |
723 | |
724 // This is textually confusing unless one recalls that | |
725 // join(t) == dual()->meet(t->dual())->dual(). | |
726 PTR join_ptr( const PTR in_ptr ) const { | |
727 return ptr_dual[ ptr_meet[ ptr_dual[in_ptr] ] [ dual_ptr() ] ]; | |
728 } | |
729 | |
730 // Tests for relation to centerline of type lattice: | |
731 static bool above_centerline(PTR ptr) { return (ptr <= AnyNull); } | |
732 static bool below_centerline(PTR ptr) { return (ptr >= NotNull); } | |
733 // Convenience common pre-built types. | |
734 static const TypePtr *NULL_PTR; | |
735 static const TypePtr *NOTNULL; | |
736 static const TypePtr *BOTTOM; | |
737 #ifndef PRODUCT | |
738 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
739 #endif | |
740 }; | |
741 | |
742 //------------------------------TypeRawPtr------------------------------------- | |
743 // Class of raw pointers, pointers to things other than Oops. Examples | |
744 // include the stack pointer, top of heap, card-marking area, handles, etc. | |
745 class TypeRawPtr : public TypePtr { | |
746 protected: | |
747 TypeRawPtr( PTR ptr, address bits ) : TypePtr(RawPtr,ptr,0), _bits(bits){} | |
748 public: | |
749 virtual bool eq( const Type *t ) const; | |
750 virtual int hash() const; // Type specific hashing | |
751 | |
752 const address _bits; // Constant value, if applicable | |
753 | |
754 static const TypeRawPtr *make( PTR ptr ); | |
755 static const TypeRawPtr *make( address bits ); | |
756 | |
757 // Return a 'ptr' version of this type | |
758 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
759 | |
760 virtual intptr_t get_con() const; | |
761 | |
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762 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 763 |
764 virtual const Type *xmeet( const Type *t ) const; | |
765 virtual const Type *xdual() const; // Compute dual right now. | |
766 // Convenience common pre-built types. | |
767 static const TypeRawPtr *BOTTOM; | |
768 static const TypeRawPtr *NOTNULL; | |
769 #ifndef PRODUCT | |
770 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
771 #endif | |
772 }; | |
773 | |
774 //------------------------------TypeOopPtr------------------------------------- | |
775 // Some kind of oop (Java pointer), either klass or instance or array. | |
776 class TypeOopPtr : public TypePtr { | |
777 protected: | |
163 | 778 TypeOopPtr( TYPES t, PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id ); |
0 | 779 public: |
780 virtual bool eq( const Type *t ) const; | |
781 virtual int hash() const; // Type specific hashing | |
782 virtual bool singleton(void) const; // TRUE if type is a singleton | |
783 enum { | |
223 | 784 InstanceTop = -1, // undefined instance |
785 InstanceBot = 0 // any possible instance | |
0 | 786 }; |
787 protected: | |
788 | |
789 // Oop is NULL, unless this is a constant oop. | |
790 ciObject* _const_oop; // Constant oop | |
791 // If _klass is NULL, then so is _sig. This is an unloaded klass. | |
792 ciKlass* _klass; // Klass object | |
793 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) | |
794 bool _klass_is_exact; | |
163 | 795 bool _is_ptr_to_narrowoop; |
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796 bool _is_ptr_to_narrowklass; |
0 | 797 |
223 | 798 // If not InstanceTop or InstanceBot, indicates that this is |
799 // a particular instance of this type which is distinct. | |
800 // This is the the node index of the allocation node creating this instance. | |
801 int _instance_id; | |
0 | 802 |
803 static const TypeOopPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); | |
804 | |
223 | 805 int dual_instance_id() const; |
806 int meet_instance_id(int uid) const; | |
0 | 807 |
808 public: | |
809 // Creates a type given a klass. Correctly handles multi-dimensional arrays | |
810 // Respects UseUniqueSubclasses. | |
811 // If the klass is final, the resulting type will be exact. | |
812 static const TypeOopPtr* make_from_klass(ciKlass* klass) { | |
813 return make_from_klass_common(klass, true, false); | |
814 } | |
815 // Same as before, but will produce an exact type, even if | |
816 // the klass is not final, as long as it has exactly one implementation. | |
817 static const TypeOopPtr* make_from_klass_unique(ciKlass* klass) { | |
818 return make_from_klass_common(klass, true, true); | |
819 } | |
820 // Same as before, but does not respects UseUniqueSubclasses. | |
821 // Use this only for creating array element types. | |
822 static const TypeOopPtr* make_from_klass_raw(ciKlass* klass) { | |
823 return make_from_klass_common(klass, false, false); | |
824 } | |
825 // Creates a singleton type given an object. | |
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826 // If the object cannot be rendered as a constant, |
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827 // may return a non-singleton type. |
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828 // If require_constant, produce a NULL if a singleton is not possible. |
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829 static const TypeOopPtr* make_from_constant(ciObject* o, bool require_constant = false); |
0 | 830 |
831 // Make a generic (unclassed) pointer to an oop. | |
992 | 832 static const TypeOopPtr* make(PTR ptr, int offset, int instance_id); |
0 | 833 |
834 ciObject* const_oop() const { return _const_oop; } | |
835 virtual ciKlass* klass() const { return _klass; } | |
836 bool klass_is_exact() const { return _klass_is_exact; } | |
163 | 837 |
838 // Returns true if this pointer points at memory which contains a | |
839 // compressed oop references. | |
840 bool is_ptr_to_narrowoop_nv() const { return _is_ptr_to_narrowoop; } | |
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841 bool is_ptr_to_narrowklass_nv() const { return _is_ptr_to_narrowklass; } |
163 | 842 |
223 | 843 bool is_known_instance() const { return _instance_id > 0; } |
844 int instance_id() const { return _instance_id; } | |
845 bool is_known_instance_field() const { return is_known_instance() && _offset >= 0; } | |
0 | 846 |
847 virtual intptr_t get_con() const; | |
848 | |
849 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
850 | |
851 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
852 | |
223 | 853 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
0 | 854 |
855 // corresponding pointer to klass, for a given instance | |
856 const TypeKlassPtr* as_klass_type() const; | |
857 | |
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858 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 859 |
860 virtual const Type *xmeet( const Type *t ) const; | |
861 virtual const Type *xdual() const; // Compute dual right now. | |
862 | |
863 // Do not allow interface-vs.-noninterface joins to collapse to top. | |
864 virtual const Type *filter( const Type *kills ) const; | |
865 | |
866 // Convenience common pre-built type. | |
867 static const TypeOopPtr *BOTTOM; | |
868 #ifndef PRODUCT | |
869 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
870 #endif | |
871 }; | |
872 | |
873 //------------------------------TypeInstPtr------------------------------------ | |
874 // Class of Java object pointers, pointing either to non-array Java instances | |
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875 // or to a Klass* (including array klasses). |
0 | 876 class TypeInstPtr : public TypeOopPtr { |
877 TypeInstPtr( PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id ); | |
878 virtual bool eq( const Type *t ) const; | |
879 virtual int hash() const; // Type specific hashing | |
880 | |
881 ciSymbol* _name; // class name | |
882 | |
883 public: | |
884 ciSymbol* name() const { return _name; } | |
885 | |
886 bool is_loaded() const { return _klass->is_loaded(); } | |
887 | |
888 // Make a pointer to a constant oop. | |
889 static const TypeInstPtr *make(ciObject* o) { | |
890 return make(TypePtr::Constant, o->klass(), true, o, 0); | |
891 } | |
892 // Make a pointer to a constant oop with offset. | |
893 static const TypeInstPtr *make(ciObject* o, int offset) { | |
894 return make(TypePtr::Constant, o->klass(), true, o, offset); | |
895 } | |
896 | |
897 // Make a pointer to some value of type klass. | |
898 static const TypeInstPtr *make(PTR ptr, ciKlass* klass) { | |
899 return make(ptr, klass, false, NULL, 0); | |
900 } | |
901 | |
902 // Make a pointer to some non-polymorphic value of exactly type klass. | |
903 static const TypeInstPtr *make_exact(PTR ptr, ciKlass* klass) { | |
904 return make(ptr, klass, true, NULL, 0); | |
905 } | |
906 | |
907 // Make a pointer to some value of type klass with offset. | |
908 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, int offset) { | |
909 return make(ptr, klass, false, NULL, offset); | |
910 } | |
911 | |
912 // Make a pointer to an oop. | |
223 | 913 static const TypeInstPtr *make(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id = InstanceBot ); |
0 | 914 |
915 // If this is a java.lang.Class constant, return the type for it or NULL. | |
916 // Pass to Type::get_const_type to turn it to a type, which will usually | |
917 // be a TypeInstPtr, but may also be a TypeInt::INT for int.class, etc. | |
918 ciType* java_mirror_type() const; | |
919 | |
920 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
921 | |
922 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
923 | |
223 | 924 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
0 | 925 |
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926 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 927 |
928 virtual const Type *xmeet( const Type *t ) const; | |
929 virtual const TypeInstPtr *xmeet_unloaded( const TypeInstPtr *t ) const; | |
930 virtual const Type *xdual() const; // Compute dual right now. | |
931 | |
932 // Convenience common pre-built types. | |
933 static const TypeInstPtr *NOTNULL; | |
934 static const TypeInstPtr *BOTTOM; | |
935 static const TypeInstPtr *MIRROR; | |
936 static const TypeInstPtr *MARK; | |
937 static const TypeInstPtr *KLASS; | |
938 #ifndef PRODUCT | |
939 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
940 #endif | |
941 }; | |
942 | |
943 //------------------------------TypeAryPtr------------------------------------- | |
944 // Class of Java array pointers | |
945 class TypeAryPtr : public TypeOopPtr { | |
1761 | 946 TypeAryPtr( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id ) : TypeOopPtr(AryPtr,ptr,k,xk,o,offset, instance_id), _ary(ary) { |
947 #ifdef ASSERT | |
948 if (k != NULL) { | |
949 // Verify that specified klass and TypeAryPtr::klass() follow the same rules. | |
950 ciKlass* ck = compute_klass(true); | |
1792 | 951 if (k != ck) { |
1761 | 952 this->dump(); tty->cr(); |
953 tty->print(" k: "); | |
954 k->print(); tty->cr(); | |
955 tty->print("ck: "); | |
956 if (ck != NULL) ck->print(); | |
957 else tty->print("<NULL>"); | |
958 tty->cr(); | |
959 assert(false, "unexpected TypeAryPtr::_klass"); | |
960 } | |
961 } | |
962 #endif | |
963 } | |
0 | 964 virtual bool eq( const Type *t ) const; |
965 virtual int hash() const; // Type specific hashing | |
966 const TypeAry *_ary; // Array we point into | |
967 | |
1761 | 968 ciKlass* compute_klass(DEBUG_ONLY(bool verify = false)) const; |
969 | |
0 | 970 public: |
971 // Accessors | |
972 ciKlass* klass() const; | |
973 const TypeAry* ary() const { return _ary; } | |
974 const Type* elem() const { return _ary->_elem; } | |
975 const TypeInt* size() const { return _ary->_size; } | |
976 | |
223 | 977 static const TypeAryPtr *make( PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id = InstanceBot); |
0 | 978 // Constant pointer to array |
223 | 979 static const TypeAryPtr *make( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id = InstanceBot); |
0 | 980 |
981 // Return a 'ptr' version of this type | |
982 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
983 | |
984 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
985 | |
223 | 986 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
0 | 987 |
988 virtual const TypeAryPtr* cast_to_size(const TypeInt* size) const; | |
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989 virtual const TypeInt* narrow_size_type(const TypeInt* size) const; |
0 | 990 |
991 virtual bool empty(void) const; // TRUE if type is vacuous | |
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992 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 993 |
994 virtual const Type *xmeet( const Type *t ) const; | |
995 virtual const Type *xdual() const; // Compute dual right now. | |
996 | |
997 // Convenience common pre-built types. | |
998 static const TypeAryPtr *RANGE; | |
999 static const TypeAryPtr *OOPS; | |
163 | 1000 static const TypeAryPtr *NARROWOOPS; |
0 | 1001 static const TypeAryPtr *BYTES; |
1002 static const TypeAryPtr *SHORTS; | |
1003 static const TypeAryPtr *CHARS; | |
1004 static const TypeAryPtr *INTS; | |
1005 static const TypeAryPtr *LONGS; | |
1006 static const TypeAryPtr *FLOATS; | |
1007 static const TypeAryPtr *DOUBLES; | |
1008 // selects one of the above: | |
1009 static const TypeAryPtr *get_array_body_type(BasicType elem) { | |
1010 assert((uint)elem <= T_CONFLICT && _array_body_type[elem] != NULL, "bad elem type"); | |
1011 return _array_body_type[elem]; | |
1012 } | |
1013 static const TypeAryPtr *_array_body_type[T_CONFLICT+1]; | |
1014 // sharpen the type of an int which is used as an array size | |
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1015 #ifdef ASSERT |
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1016 // One type is interface, the other is oop |
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1017 virtual bool interface_vs_oop(const Type *t) const; |
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1018 #endif |
0 | 1019 #ifndef PRODUCT |
1020 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
1021 #endif | |
1022 }; | |
1023 | |
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1024 //------------------------------TypeMetadataPtr------------------------------------- |
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1025 // Some kind of metadata, either Method*, MethodData* or CPCacheOop |
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1026 class TypeMetadataPtr : public TypePtr { |
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1027 protected: |
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1028 TypeMetadataPtr(PTR ptr, ciMetadata* metadata, int offset); |
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1029 public: |
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1030 virtual bool eq( const Type *t ) const; |
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1031 virtual int hash() const; // Type specific hashing |
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1032 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1033 |
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1034 private: |
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1035 ciMetadata* _metadata; |
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1036 |
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1037 public: |
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1038 static const TypeMetadataPtr* make(PTR ptr, ciMetadata* m, int offset); |
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1039 |
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1040 static const TypeMetadataPtr* make(ciMethod* m); |
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1041 static const TypeMetadataPtr* make(ciMethodData* m); |
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1042 |
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1043 ciMetadata* metadata() const { return _metadata; } |
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1044 |
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1045 virtual const Type *cast_to_ptr_type(PTR ptr) const; |
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1046 |
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1047 virtual const TypePtr *add_offset( intptr_t offset ) const; |
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1048 |
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1049 virtual const Type *xmeet( const Type *t ) const; |
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1050 virtual const Type *xdual() const; // Compute dual right now. |
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1051 |
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1052 virtual intptr_t get_con() const; |
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1053 |
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1054 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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1055 virtual const Type *filter( const Type *kills ) const; |
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1056 |
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1057 // Convenience common pre-built types. |
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1058 static const TypeMetadataPtr *BOTTOM; |
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1059 |
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1060 #ifndef PRODUCT |
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1061 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1062 #endif |
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1063 }; |
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1064 |
0 | 1065 //------------------------------TypeKlassPtr----------------------------------- |
1066 // Class of Java Klass pointers | |
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1067 class TypeKlassPtr : public TypePtr { |
0 | 1068 TypeKlassPtr( PTR ptr, ciKlass* klass, int offset ); |
1069 | |
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1070 public: |
0 | 1071 virtual bool eq( const Type *t ) const; |
1072 virtual int hash() const; // Type specific hashing | |
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1073 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1074 private: |
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1075 |
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1076 static const TypeKlassPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); |
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1077 |
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1078 ciKlass* _klass; |
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1079 |
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1080 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) |
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1081 bool _klass_is_exact; |
0 | 1082 |
1083 public: | |
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1084 ciSymbol* name() const { return klass()->name(); } |
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1085 |
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1086 ciKlass* klass() const { return _klass; } |
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1087 bool klass_is_exact() const { return _klass_is_exact; } |
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1088 |
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1089 bool is_loaded() const { return klass()->is_loaded(); } |
0 | 1090 |
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1091 // Creates a type given a klass. Correctly handles multi-dimensional arrays |
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1092 // Respects UseUniqueSubclasses. |
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1093 // If the klass is final, the resulting type will be exact. |
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1094 static const TypeKlassPtr* make_from_klass(ciKlass* klass) { |
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1095 return make_from_klass_common(klass, true, false); |
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1096 } |
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1097 // Same as before, but will produce an exact type, even if |
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1098 // the klass is not final, as long as it has exactly one implementation. |
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1099 static const TypeKlassPtr* make_from_klass_unique(ciKlass* klass) { |
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1100 return make_from_klass_common(klass, true, true); |
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1101 } |
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1102 // Same as before, but does not respects UseUniqueSubclasses. |
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1103 // Use this only for creating array element types. |
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1104 static const TypeKlassPtr* make_from_klass_raw(ciKlass* klass) { |
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1105 return make_from_klass_common(klass, false, false); |
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1106 } |
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1107 |
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1108 // Make a generic (unclassed) pointer to metadata. |
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1109 static const TypeKlassPtr* make(PTR ptr, int offset); |
555 | 1110 |
0 | 1111 // ptr to klass 'k' |
1112 static const TypeKlassPtr *make( ciKlass* k ) { return make( TypePtr::Constant, k, 0); } | |
1113 // ptr to klass 'k' with offset | |
1114 static const TypeKlassPtr *make( ciKlass* k, int offset ) { return make( TypePtr::Constant, k, offset); } | |
1115 // ptr to klass 'k' or sub-klass | |
1116 static const TypeKlassPtr *make( PTR ptr, ciKlass* k, int offset); | |
1117 | |
1118 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
1119 | |
1120 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
1121 | |
1122 // corresponding pointer to instance, for a given class | |
1123 const TypeOopPtr* as_instance_type() const; | |
1124 | |
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1125 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 1126 virtual const Type *xmeet( const Type *t ) const; |
1127 virtual const Type *xdual() const; // Compute dual right now. | |
1128 | |
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1129 virtual intptr_t get_con() const; |
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1130 |
0 | 1131 // Convenience common pre-built types. |
1132 static const TypeKlassPtr* OBJECT; // Not-null object klass or below | |
1133 static const TypeKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same | |
1134 #ifndef PRODUCT | |
1135 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
1136 #endif | |
1137 }; | |
1138 | |
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1139 class TypeNarrowPtr : public Type { |
113
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1140 protected: |
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1141 const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR |
113
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1142 |
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1143 TypeNarrowPtr(TYPES t, const TypePtr* ptrtype): _ptrtype(ptrtype), |
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1144 Type(t) { |
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1145 assert(ptrtype->offset() == 0 || |
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1146 ptrtype->offset() == OffsetBot || |
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1147 ptrtype->offset() == OffsetTop, "no real offsets"); |
113
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1148 } |
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1149 |
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1150 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const = 0; |
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1151 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const = 0; |
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1152 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const = 0; |
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1153 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const = 0; |
113
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1154 public: |
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1155 virtual bool eq( const Type *t ) const; |
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1156 virtual int hash() const; // Type specific hashing |
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1157 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1158 |
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1159 virtual const Type *xmeet( const Type *t ) const; |
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1160 virtual const Type *xdual() const; // Compute dual right now. |
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1161 |
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1162 virtual intptr_t get_con() const; |
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1163 |
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1164 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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1165 virtual const Type *filter( const Type *kills ) const; |
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1166 |
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1167 virtual bool empty(void) const; // TRUE if type is vacuous |
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1168 |
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1169 // returns the equivalent ptr type for this compressed pointer |
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1170 const TypePtr *get_ptrtype() const { |
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1171 return _ptrtype; |
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1172 } |
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1173 |
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1174 #ifndef PRODUCT |
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1175 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1176 #endif |
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1177 }; |
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1178 |
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1179 //------------------------------TypeNarrowOop---------------------------------- |
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1180 // A compressed reference to some kind of Oop. This type wraps around |
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1181 // a preexisting TypeOopPtr and forwards most of it's operations to |
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1182 // the underlying type. It's only real purpose is to track the |
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1183 // oopness of the compressed oop value when we expose the conversion |
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1184 // between the normal and the compressed form. |
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1185 class TypeNarrowOop : public TypeNarrowPtr { |
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1186 protected: |
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1187 TypeNarrowOop( const TypePtr* ptrtype): TypeNarrowPtr(NarrowOop, ptrtype) { |
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1188 } |
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1189 |
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1190 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { |
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1191 return t->isa_narrowoop(); |
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1192 } |
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1193 |
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1194 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { |
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1195 return t->is_narrowoop(); |
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1196 } |
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1197 |
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1198 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { |
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1199 return new TypeNarrowOop(t); |
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1200 } |
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1201 |
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1202 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { |
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1203 return (const TypeNarrowPtr*)((new TypeNarrowOop(t))->hashcons()); |
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1204 } |
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1205 |
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1206 public: |
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1207 |
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1208 static const TypeNarrowOop *make( const TypePtr* type); |
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1209 |
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1210 static const TypeNarrowOop* make_from_constant(ciObject* con, bool require_constant = false) { |
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1211 return make(TypeOopPtr::make_from_constant(con, require_constant)); |
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1212 } |
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1213 |
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1214 static const TypeNarrowOop *BOTTOM; |
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1215 static const TypeNarrowOop *NULL_PTR; |
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1216 |
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1217 #ifndef PRODUCT |
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1218 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1219 #endif |
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1220 }; |
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1221 |
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1222 //------------------------------TypeNarrowKlass---------------------------------- |
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1223 // A compressed reference to klass pointer. This type wraps around a |
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1224 // preexisting TypeKlassPtr and forwards most of it's operations to |
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1225 // the underlying type. |
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1226 class TypeNarrowKlass : public TypeNarrowPtr { |
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1227 protected: |
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1228 TypeNarrowKlass( const TypePtr* ptrtype): TypeNarrowPtr(NarrowKlass, ptrtype) { |
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1229 } |
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1230 |
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1231 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { |
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1232 return t->isa_narrowklass(); |
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1233 } |
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1234 |
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1235 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { |
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1236 return t->is_narrowklass(); |
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1237 } |
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1238 |
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1239 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { |
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1240 return new TypeNarrowKlass(t); |
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1241 } |
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1242 |
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1243 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { |
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1244 return (const TypeNarrowPtr*)((new TypeNarrowKlass(t))->hashcons()); |
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1245 } |
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1246 |
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1247 public: |
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1248 static const TypeNarrowKlass *make( const TypePtr* type); |
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1249 |
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1250 // static const TypeNarrowKlass *BOTTOM; |
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1251 static const TypeNarrowKlass *NULL_PTR; |
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1252 |
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1253 #ifndef PRODUCT |
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1254 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1255 #endif |
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1256 }; |
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1257 |
0 | 1258 //------------------------------TypeFunc--------------------------------------- |
1259 // Class of Array Types | |
1260 class TypeFunc : public Type { | |
1261 TypeFunc( const TypeTuple *domain, const TypeTuple *range ) : Type(Function), _domain(domain), _range(range) {} | |
1262 virtual bool eq( const Type *t ) const; | |
1263 virtual int hash() const; // Type specific hashing | |
1264 virtual bool singleton(void) const; // TRUE if type is a singleton | |
1265 virtual bool empty(void) const; // TRUE if type is vacuous | |
1266 public: | |
1267 // Constants are shared among ADLC and VM | |
1268 enum { Control = AdlcVMDeps::Control, | |
1269 I_O = AdlcVMDeps::I_O, | |
1270 Memory = AdlcVMDeps::Memory, | |
1271 FramePtr = AdlcVMDeps::FramePtr, | |
1272 ReturnAdr = AdlcVMDeps::ReturnAdr, | |
1273 Parms = AdlcVMDeps::Parms | |
1274 }; | |
1275 | |
1276 const TypeTuple* const _domain; // Domain of inputs | |
1277 const TypeTuple* const _range; // Range of results | |
1278 | |
1279 // Accessors: | |
1280 const TypeTuple* domain() const { return _domain; } | |
1281 const TypeTuple* range() const { return _range; } | |
1282 | |
1283 static const TypeFunc *make(ciMethod* method); | |
1284 static const TypeFunc *make(ciSignature signature, const Type* extra); | |
1285 static const TypeFunc *make(const TypeTuple* domain, const TypeTuple* range); | |
1286 | |
1287 virtual const Type *xmeet( const Type *t ) const; | |
1288 virtual const Type *xdual() const; // Compute dual right now. | |
1289 | |
1290 BasicType return_type() const; | |
1291 | |
1292 #ifndef PRODUCT | |
1293 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
1294 #endif | |
1295 // Convenience common pre-built types. | |
1296 }; | |
1297 | |
1298 //------------------------------accessors-------------------------------------- | |
163 | 1299 inline bool Type::is_ptr_to_narrowoop() const { |
1300 #ifdef _LP64 | |
1301 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowoop_nv()); | |
1302 #else | |
1303 return false; | |
1304 #endif | |
1305 } | |
1306 | |
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1307 inline bool Type::is_ptr_to_narrowklass() const { |
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1308 #ifdef _LP64 |
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1309 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowklass_nv()); |
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1310 #else |
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1311 return false; |
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1312 #endif |
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1313 } |
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1314 |
0 | 1315 inline float Type::getf() const { |
1316 assert( _base == FloatCon, "Not a FloatCon" ); | |
1317 return ((TypeF*)this)->_f; | |
1318 } | |
1319 | |
1320 inline double Type::getd() const { | |
1321 assert( _base == DoubleCon, "Not a DoubleCon" ); | |
1322 return ((TypeD*)this)->_d; | |
1323 } | |
1324 | |
1325 inline const TypeInt *Type::is_int() const { | |
1326 assert( _base == Int, "Not an Int" ); | |
1327 return (TypeInt*)this; | |
1328 } | |
1329 | |
1330 inline const TypeInt *Type::isa_int() const { | |
1331 return ( _base == Int ? (TypeInt*)this : NULL); | |
1332 } | |
1333 | |
1334 inline const TypeLong *Type::is_long() const { | |
1335 assert( _base == Long, "Not a Long" ); | |
1336 return (TypeLong*)this; | |
1337 } | |
1338 | |
1339 inline const TypeLong *Type::isa_long() const { | |
1340 return ( _base == Long ? (TypeLong*)this : NULL); | |
1341 } | |
1342 | |
7194
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1343 inline const TypeF *Type::isa_float() const { |
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1344 return ((_base == FloatTop || |
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1345 _base == FloatCon || |
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1346 _base == FloatBot) ? (TypeF*)this : NULL); |
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1347 } |
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1348 |
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1349 inline const TypeF *Type::is_float_constant() const { |
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1350 assert( _base == FloatCon, "Not a Float" ); |
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1351 return (TypeF*)this; |
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1352 } |
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1353 |
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1354 inline const TypeF *Type::isa_float_constant() const { |
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1355 return ( _base == FloatCon ? (TypeF*)this : NULL); |
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1356 } |
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1357 |
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1358 inline const TypeD *Type::isa_double() const { |
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1359 return ((_base == DoubleTop || |
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1360 _base == DoubleCon || |
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1361 _base == DoubleBot) ? (TypeD*)this : NULL); |
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1362 } |
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1363 |
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1364 inline const TypeD *Type::is_double_constant() const { |
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1365 assert( _base == DoubleCon, "Not a Double" ); |
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1366 return (TypeD*)this; |
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1367 } |
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1368 |
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1369 inline const TypeD *Type::isa_double_constant() const { |
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1370 return ( _base == DoubleCon ? (TypeD*)this : NULL); |
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1371 } |
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1372 |
0 | 1373 inline const TypeTuple *Type::is_tuple() const { |
1374 assert( _base == Tuple, "Not a Tuple" ); | |
1375 return (TypeTuple*)this; | |
1376 } | |
1377 | |
1378 inline const TypeAry *Type::is_ary() const { | |
1379 assert( _base == Array , "Not an Array" ); | |
1380 return (TypeAry*)this; | |
1381 } | |
1382 | |
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1383 inline const TypeVect *Type::is_vect() const { |
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1384 assert( _base >= VectorS && _base <= VectorY, "Not a Vector" ); |
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1385 return (TypeVect*)this; |
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1386 } |
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1387 |
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1388 inline const TypeVect *Type::isa_vect() const { |
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1389 return (_base >= VectorS && _base <= VectorY) ? (TypeVect*)this : NULL; |
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1390 } |
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1391 |
0 | 1392 inline const TypePtr *Type::is_ptr() const { |
1393 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
1394 assert(_base >= AnyPtr && _base <= KlassPtr, "Not a pointer"); | |
1395 return (TypePtr*)this; | |
1396 } | |
1397 | |
1398 inline const TypePtr *Type::isa_ptr() const { | |
1399 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
1400 return (_base >= AnyPtr && _base <= KlassPtr) ? (TypePtr*)this : NULL; | |
1401 } | |
1402 | |
1403 inline const TypeOopPtr *Type::is_oopptr() const { | |
1404 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
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1405 assert(_base >= OopPtr && _base <= AryPtr, "Not a Java pointer" ) ; |
0 | 1406 return (TypeOopPtr*)this; |
1407 } | |
1408 | |
1409 inline const TypeOopPtr *Type::isa_oopptr() const { | |
1410 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
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1411 return (_base >= OopPtr && _base <= AryPtr) ? (TypeOopPtr*)this : NULL; |
0 | 1412 } |
1413 | |
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1414 inline const TypeRawPtr *Type::isa_rawptr() const { |
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1415 return (_base == RawPtr) ? (TypeRawPtr*)this : NULL; |
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1416 } |
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1417 |
0 | 1418 inline const TypeRawPtr *Type::is_rawptr() const { |
1419 assert( _base == RawPtr, "Not a raw pointer" ); | |
1420 return (TypeRawPtr*)this; | |
1421 } | |
1422 | |
1423 inline const TypeInstPtr *Type::isa_instptr() const { | |
1424 return (_base == InstPtr) ? (TypeInstPtr*)this : NULL; | |
1425 } | |
1426 | |
1427 inline const TypeInstPtr *Type::is_instptr() const { | |
1428 assert( _base == InstPtr, "Not an object pointer" ); | |
1429 return (TypeInstPtr*)this; | |
1430 } | |
1431 | |
1432 inline const TypeAryPtr *Type::isa_aryptr() const { | |
1433 return (_base == AryPtr) ? (TypeAryPtr*)this : NULL; | |
1434 } | |
1435 | |
1436 inline const TypeAryPtr *Type::is_aryptr() const { | |
1437 assert( _base == AryPtr, "Not an array pointer" ); | |
1438 return (TypeAryPtr*)this; | |
1439 } | |
1440 | |
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1441 inline const TypeNarrowOop *Type::is_narrowoop() const { |
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1442 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
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1443 assert(_base == NarrowOop, "Not a narrow oop" ) ; |
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1444 return (TypeNarrowOop*)this; |
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1445 } |
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1446 |
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1447 inline const TypeNarrowOop *Type::isa_narrowoop() const { |
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1448 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
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1449 return (_base == NarrowOop) ? (TypeNarrowOop*)this : NULL; |
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1450 } |
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1451 |
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1452 inline const TypeNarrowKlass *Type::is_narrowklass() const { |
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1453 assert(_base == NarrowKlass, "Not a narrow oop" ) ; |
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1454 return (TypeNarrowKlass*)this; |
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1455 } |
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1456 |
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1457 inline const TypeNarrowKlass *Type::isa_narrowklass() const { |
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1458 return (_base == NarrowKlass) ? (TypeNarrowKlass*)this : NULL; |
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1459 } |
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1460 |
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1461 inline const TypeMetadataPtr *Type::is_metadataptr() const { |
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1462 // MetadataPtr is the first and CPCachePtr the last |
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1463 assert(_base == MetadataPtr, "Not a metadata pointer" ) ; |
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1464 return (TypeMetadataPtr*)this; |
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1465 } |
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1466 |
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1467 inline const TypeMetadataPtr *Type::isa_metadataptr() const { |
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1468 return (_base == MetadataPtr) ? (TypeMetadataPtr*)this : NULL; |
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1469 } |
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1470 |
0 | 1471 inline const TypeKlassPtr *Type::isa_klassptr() const { |
1472 return (_base == KlassPtr) ? (TypeKlassPtr*)this : NULL; | |
1473 } | |
1474 | |
1475 inline const TypeKlassPtr *Type::is_klassptr() const { | |
1476 assert( _base == KlassPtr, "Not a klass pointer" ); | |
1477 return (TypeKlassPtr*)this; | |
1478 } | |
1479 | |
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1480 inline const TypePtr* Type::make_ptr() const { |
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1481 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype() : |
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1482 ((_base == NarrowKlass) ? is_narrowklass()->get_ptrtype() : |
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1483 (isa_ptr() ? is_ptr() : NULL)); |
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1484 } |
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1485 |
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1486 inline const TypeOopPtr* Type::make_oopptr() const { |
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1487 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->is_oopptr() : is_oopptr(); |
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1488 } |
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1489 |
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1490 inline const TypeNarrowOop* Type::make_narrowoop() const { |
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1491 return (_base == NarrowOop) ? is_narrowoop() : |
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1492 (isa_ptr() ? TypeNarrowOop::make(is_ptr()) : NULL); |
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1493 } |
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1494 |
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1495 inline const TypeNarrowKlass* Type::make_narrowklass() const { |
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1496 return (_base == NarrowKlass) ? is_narrowklass() : |
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1497 (isa_ptr() ? TypeNarrowKlass::make(is_ptr()) : NULL); |
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1498 } |
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1499 |
0 | 1500 inline bool Type::is_floatingpoint() const { |
1501 if( (_base == FloatCon) || (_base == FloatBot) || | |
1502 (_base == DoubleCon) || (_base == DoubleBot) ) | |
1503 return true; | |
1504 return false; | |
1505 } | |
1506 | |
1507 | |
1508 // =============================================================== | |
1509 // Things that need to be 64-bits in the 64-bit build but | |
1510 // 32-bits in the 32-bit build. Done this way to get full | |
1511 // optimization AND strong typing. | |
1512 #ifdef _LP64 | |
1513 | |
1514 // For type queries and asserts | |
1515 #define is_intptr_t is_long | |
1516 #define isa_intptr_t isa_long | |
1517 #define find_intptr_t_type find_long_type | |
1518 #define find_intptr_t_con find_long_con | |
1519 #define TypeX TypeLong | |
1520 #define Type_X Type::Long | |
1521 #define TypeX_X TypeLong::LONG | |
1522 #define TypeX_ZERO TypeLong::ZERO | |
1523 // For 'ideal_reg' machine registers | |
1524 #define Op_RegX Op_RegL | |
1525 // For phase->intcon variants | |
1526 #define MakeConX longcon | |
1527 #define ConXNode ConLNode | |
1528 // For array index arithmetic | |
1529 #define MulXNode MulLNode | |
1530 #define AndXNode AndLNode | |
1531 #define OrXNode OrLNode | |
1532 #define CmpXNode CmpLNode | |
1533 #define SubXNode SubLNode | |
1534 #define LShiftXNode LShiftLNode | |
1535 // For object size computation: | |
1536 #define AddXNode AddLNode | |
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1537 #define RShiftXNode RShiftLNode |
0 | 1538 // For card marks and hashcodes |
1539 #define URShiftXNode URShiftLNode | |
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1540 // UseOptoBiasInlining |
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1541 #define XorXNode XorLNode |
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1542 #define StoreXConditionalNode StoreLConditionalNode |
0 | 1543 // Opcodes |
1544 #define Op_LShiftX Op_LShiftL | |
1545 #define Op_AndX Op_AndL | |
1546 #define Op_AddX Op_AddL | |
1547 #define Op_SubX Op_SubL | |
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1548 #define Op_XorX Op_XorL |
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1549 #define Op_URShiftX Op_URShiftL |
0 | 1550 // conversions |
1551 #define ConvI2X(x) ConvI2L(x) | |
1552 #define ConvL2X(x) (x) | |
1553 #define ConvX2I(x) ConvL2I(x) | |
1554 #define ConvX2L(x) (x) | |
1555 | |
1556 #else | |
1557 | |
1558 // For type queries and asserts | |
1559 #define is_intptr_t is_int | |
1560 #define isa_intptr_t isa_int | |
1561 #define find_intptr_t_type find_int_type | |
1562 #define find_intptr_t_con find_int_con | |
1563 #define TypeX TypeInt | |
1564 #define Type_X Type::Int | |
1565 #define TypeX_X TypeInt::INT | |
1566 #define TypeX_ZERO TypeInt::ZERO | |
1567 // For 'ideal_reg' machine registers | |
1568 #define Op_RegX Op_RegI | |
1569 // For phase->intcon variants | |
1570 #define MakeConX intcon | |
1571 #define ConXNode ConINode | |
1572 // For array index arithmetic | |
1573 #define MulXNode MulINode | |
1574 #define AndXNode AndINode | |
1575 #define OrXNode OrINode | |
1576 #define CmpXNode CmpINode | |
1577 #define SubXNode SubINode | |
1578 #define LShiftXNode LShiftINode | |
1579 // For object size computation: | |
1580 #define AddXNode AddINode | |
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1581 #define RShiftXNode RShiftINode |
0 | 1582 // For card marks and hashcodes |
1583 #define URShiftXNode URShiftINode | |
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1584 // UseOptoBiasInlining |
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1585 #define XorXNode XorINode |
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1586 #define StoreXConditionalNode StoreIConditionalNode |
0 | 1587 // Opcodes |
1588 #define Op_LShiftX Op_LShiftI | |
1589 #define Op_AndX Op_AndI | |
1590 #define Op_AddX Op_AddI | |
1591 #define Op_SubX Op_SubI | |
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1592 #define Op_XorX Op_XorI |
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1593 #define Op_URShiftX Op_URShiftI |
0 | 1594 // conversions |
1595 #define ConvI2X(x) (x) | |
1596 #define ConvL2X(x) ConvL2I(x) | |
1597 #define ConvX2I(x) (x) | |
1598 #define ConvX2L(x) ConvI2L(x) | |
1599 | |
1600 #endif | |
1972 | 1601 |
1602 #endif // SHARE_VM_OPTO_TYPE_HPP |