Mercurial > hg > truffle
annotate src/share/vm/opto/type.hpp @ 2645:b2c1e959be46
Clean up around BlockBegin / StdEntry.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 11 May 2011 14:34:29 +0200 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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 TypeNarrowOop; |
0 | 52 class TypeAry; |
53 class TypeTuple; | |
54 class TypePtr; | |
55 class TypeRawPtr; | |
56 class TypeOopPtr; | |
57 class TypeInstPtr; | |
58 class TypeAryPtr; | |
59 class TypeKlassPtr; | |
60 | |
61 //------------------------------Type------------------------------------------- | |
62 // Basic Type object, represents a set of primitive Values. | |
63 // Types are hash-cons'd into a private class dictionary, so only one of each | |
64 // different kind of Type exists. Types are never modified after creation, so | |
65 // all their interesting fields are constant. | |
66 class Type { | |
67 public: | |
68 enum TYPES { | |
69 Bad=0, // Type check | |
70 Control, // Control of code (not in lattice) | |
71 Top, // Top of the lattice | |
72 Int, // Integer range (lo-hi) | |
73 Long, // Long integer range (lo-hi) | |
74 Half, // Placeholder half of doubleword | |
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75 NarrowOop, // Compressed oop pointer |
0 | 76 |
77 Tuple, // Method signature or object layout | |
78 Array, // Array types | |
79 | |
80 AnyPtr, // Any old raw, klass, inst, or array pointer | |
81 RawPtr, // Raw (non-oop) pointers | |
82 OopPtr, // Any and all Java heap entities | |
83 InstPtr, // Instance pointers (non-array objects) | |
84 AryPtr, // Array pointers | |
85 KlassPtr, // Klass pointers | |
86 // (Ptr order matters: See is_ptr, isa_ptr, is_oopptr, isa_oopptr.) | |
87 | |
88 Function, // Function signature | |
89 Abio, // Abstract I/O | |
90 Return_Address, // Subroutine return address | |
91 Memory, // Abstract store | |
92 FloatTop, // No float value | |
93 FloatCon, // Floating point constant | |
94 FloatBot, // Any float value | |
95 DoubleTop, // No double value | |
96 DoubleCon, // Double precision constant | |
97 DoubleBot, // Any double value | |
98 Bottom, // Bottom of lattice | |
99 lastype // Bogus ending type (not in lattice) | |
100 }; | |
101 | |
102 // Signal values for offsets from a base pointer | |
103 enum OFFSET_SIGNALS { | |
104 OffsetTop = -2000000000, // undefined offset | |
105 OffsetBot = -2000000001 // any possible offset | |
106 }; | |
107 | |
108 // Min and max WIDEN values. | |
109 enum WIDEN { | |
110 WidenMin = 0, | |
111 WidenMax = 3 | |
112 }; | |
113 | |
114 private: | |
115 // Dictionary of types shared among compilations. | |
116 static Dict* _shared_type_dict; | |
117 | |
118 static int uhash( const Type *const t ); | |
119 // Structural equality check. Assumes that cmp() has already compared | |
120 // the _base types and thus knows it can cast 't' appropriately. | |
121 virtual bool eq( const Type *t ) const; | |
122 | |
123 // Top-level hash-table of types | |
124 static Dict *type_dict() { | |
125 return Compile::current()->type_dict(); | |
126 } | |
127 | |
128 // DUAL operation: reflect around lattice centerline. Used instead of | |
129 // join to ensure my lattice is symmetric up and down. Dual is computed | |
130 // lazily, on demand, and cached in _dual. | |
131 const Type *_dual; // Cached dual value | |
132 // Table for efficient dualing of base types | |
133 static const TYPES dual_type[lastype]; | |
134 | |
135 protected: | |
136 // Each class of type is also identified by its base. | |
137 const TYPES _base; // Enum of Types type | |
138 | |
139 Type( TYPES t ) : _dual(NULL), _base(t) {} // Simple types | |
140 // ~Type(); // Use fast deallocation | |
141 const Type *hashcons(); // Hash-cons the type | |
142 | |
143 public: | |
144 | |
145 inline void* operator new( size_t x ) { | |
146 Compile* compile = Compile::current(); | |
147 compile->set_type_last_size(x); | |
148 void *temp = compile->type_arena()->Amalloc_D(x); | |
149 compile->set_type_hwm(temp); | |
150 return temp; | |
151 } | |
152 inline void operator delete( void* ptr ) { | |
153 Compile* compile = Compile::current(); | |
154 compile->type_arena()->Afree(ptr,compile->type_last_size()); | |
155 } | |
156 | |
157 // Initialize the type system for a particular compilation. | |
158 static void Initialize(Compile* compile); | |
159 | |
160 // Initialize the types shared by all compilations. | |
161 static void Initialize_shared(Compile* compile); | |
162 | |
163 TYPES base() const { | |
164 assert(_base > Bad && _base < lastype, "sanity"); | |
165 return _base; | |
166 } | |
167 | |
168 // Create a new hash-consd type | |
169 static const Type *make(enum TYPES); | |
170 // Test for equivalence of types | |
171 static int cmp( const Type *const t1, const Type *const t2 ); | |
172 // Test for higher or equal in lattice | |
173 int higher_equal( const Type *t ) const { return !cmp(meet(t),t); } | |
174 | |
175 // MEET operation; lower in lattice. | |
176 const Type *meet( const Type *t ) const; | |
177 // WIDEN: 'widens' for Ints and other range types | |
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178 virtual const Type *widen( const Type *old, const Type* limit ) const { return this; } |
0 | 179 // NARROW: complement for widen, used by pessimistic phases |
180 virtual const Type *narrow( const Type *old ) const { return this; } | |
181 | |
182 // DUAL operation: reflect around lattice centerline. Used instead of | |
183 // join to ensure my lattice is symmetric up and down. | |
184 const Type *dual() const { return _dual; } | |
185 | |
186 // Compute meet dependent on base type | |
187 virtual const Type *xmeet( const Type *t ) const; | |
188 virtual const Type *xdual() const; // Compute dual right now. | |
189 | |
190 // JOIN operation; higher in lattice. Done by finding the dual of the | |
191 // meet of the dual of the 2 inputs. | |
192 const Type *join( const Type *t ) const { | |
193 return dual()->meet(t->dual())->dual(); } | |
194 | |
195 // Modified version of JOIN adapted to the needs Node::Value. | |
196 // Normalizes all empty values to TOP. Does not kill _widen bits. | |
197 // Currently, it also works around limitations involving interface types. | |
198 virtual const Type *filter( const Type *kills ) const; | |
199 | |
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200 #ifdef ASSERT |
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201 // One type is interface, the other is oop |
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202 virtual bool interface_vs_oop(const Type *t) const; |
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203 #endif |
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204 |
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205 // Returns true if this pointer points at memory which contains a |
163 | 206 // compressed oop references. |
207 bool is_ptr_to_narrowoop() const; | |
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208 |
0 | 209 // Convenience access |
210 float getf() const; | |
211 double getd() const; | |
212 | |
213 const TypeInt *is_int() const; | |
214 const TypeInt *isa_int() const; // Returns NULL if not an Int | |
215 const TypeLong *is_long() const; | |
216 const TypeLong *isa_long() const; // Returns NULL if not a Long | |
217 const TypeD *is_double_constant() const; // Asserts it is a DoubleCon | |
218 const TypeD *isa_double_constant() const; // Returns NULL if not a DoubleCon | |
219 const TypeF *is_float_constant() const; // Asserts it is a FloatCon | |
220 const TypeF *isa_float_constant() const; // Returns NULL if not a FloatCon | |
221 const TypeTuple *is_tuple() const; // Collection of fields, NOT a pointer | |
222 const TypeAry *is_ary() const; // Array, NOT array pointer | |
223 const TypePtr *is_ptr() const; // Asserts it is a ptr type | |
224 const TypePtr *isa_ptr() const; // Returns NULL if not ptr type | |
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225 const TypeRawPtr *isa_rawptr() const; // NOT Java oop |
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226 const TypeRawPtr *is_rawptr() const; // Asserts is rawptr |
163 | 227 const TypeNarrowOop *is_narrowoop() const; // Java-style GC'd pointer |
228 const TypeNarrowOop *isa_narrowoop() const; // Returns NULL if not oop ptr type | |
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229 const TypeOopPtr *isa_oopptr() const; // Returns NULL if not oop ptr type |
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230 const TypeOopPtr *is_oopptr() const; // Java-style GC'd pointer |
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231 const TypeKlassPtr *isa_klassptr() const; // Returns NULL if not KlassPtr |
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232 const TypeKlassPtr *is_klassptr() const; // assert if not KlassPtr |
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233 const TypeInstPtr *isa_instptr() const; // Returns NULL if not InstPtr |
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234 const TypeInstPtr *is_instptr() const; // Instance |
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235 const TypeAryPtr *isa_aryptr() const; // Returns NULL if not AryPtr |
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236 const TypeAryPtr *is_aryptr() const; // Array oop |
0 | 237 virtual bool is_finite() const; // Has a finite value |
238 virtual bool is_nan() const; // Is not a number (NaN) | |
239 | |
221
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240 // Returns this ptr type or the equivalent ptr type for this compressed pointer. |
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241 const TypePtr* make_ptr() const; |
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242 |
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243 // Returns this oopptr type or the equivalent oopptr type for this compressed pointer. |
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244 // Asserts if the underlying type is not an oopptr or narrowoop. |
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245 const TypeOopPtr* make_oopptr() const; |
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246 |
221
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247 // Returns this compressed pointer or the equivalent compressed version |
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248 // of this pointer type. |
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249 const TypeNarrowOop* make_narrowoop() const; |
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250 |
0 | 251 // Special test for register pressure heuristic |
252 bool is_floatingpoint() const; // True if Float or Double base type | |
253 | |
254 // Do you have memory, directly or through a tuple? | |
255 bool has_memory( ) const; | |
256 | |
257 // Are you a pointer type or not? | |
258 bool isa_oop_ptr() const; | |
259 | |
260 // TRUE if type is a singleton | |
261 virtual bool singleton(void) const; | |
262 | |
263 // TRUE if type is above the lattice centerline, and is therefore vacuous | |
264 virtual bool empty(void) const; | |
265 | |
266 // Return a hash for this type. The hash function is public so ConNode | |
267 // (constants) can hash on their constant, which is represented by a Type. | |
268 virtual int hash() const; | |
269 | |
270 // Map ideal registers (machine types) to ideal types | |
271 static const Type *mreg2type[]; | |
272 | |
273 // Printing, statistics | |
274 static const char * const msg[lastype]; // Printable strings | |
275 #ifndef PRODUCT | |
276 void dump_on(outputStream *st) const; | |
277 void dump() const { | |
278 dump_on(tty); | |
279 } | |
280 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
281 static void dump_stats(); | |
282 static void verify_lastype(); // Check that arrays match type enum | |
283 #endif | |
284 void typerr(const Type *t) const; // Mixing types error | |
285 | |
286 // Create basic type | |
287 static const Type* get_const_basic_type(BasicType type) { | |
288 assert((uint)type <= T_CONFLICT && _const_basic_type[type] != NULL, "bad type"); | |
289 return _const_basic_type[type]; | |
290 } | |
291 | |
292 // Mapping to the array element's basic type. | |
293 BasicType array_element_basic_type() const; | |
294 | |
295 // Create standard type for a ciType: | |
296 static const Type* get_const_type(ciType* type); | |
297 | |
298 // Create standard zero value: | |
299 static const Type* get_zero_type(BasicType type) { | |
300 assert((uint)type <= T_CONFLICT && _zero_type[type] != NULL, "bad type"); | |
301 return _zero_type[type]; | |
302 } | |
303 | |
304 // Report if this is a zero value (not top). | |
305 bool is_zero_type() const { | |
306 BasicType type = basic_type(); | |
307 if (type == T_VOID || type >= T_CONFLICT) | |
308 return false; | |
309 else | |
310 return (this == _zero_type[type]); | |
311 } | |
312 | |
313 // Convenience common pre-built types. | |
314 static const Type *ABIO; | |
315 static const Type *BOTTOM; | |
316 static const Type *CONTROL; | |
317 static const Type *DOUBLE; | |
318 static const Type *FLOAT; | |
319 static const Type *HALF; | |
320 static const Type *MEMORY; | |
321 static const Type *MULTI; | |
322 static const Type *RETURN_ADDRESS; | |
323 static const Type *TOP; | |
324 | |
325 // Mapping from compiler type to VM BasicType | |
326 BasicType basic_type() const { return _basic_type[_base]; } | |
327 | |
328 // Mapping from CI type system to compiler type: | |
329 static const Type* get_typeflow_type(ciType* type); | |
330 | |
331 private: | |
332 // support arrays | |
333 static const BasicType _basic_type[]; | |
334 static const Type* _zero_type[T_CONFLICT+1]; | |
335 static const Type* _const_basic_type[T_CONFLICT+1]; | |
336 }; | |
337 | |
338 //------------------------------TypeF------------------------------------------ | |
339 // Class of Float-Constant Types. | |
340 class TypeF : public Type { | |
341 TypeF( float f ) : Type(FloatCon), _f(f) {}; | |
342 public: | |
343 virtual bool eq( const Type *t ) const; | |
344 virtual int hash() const; // Type specific hashing | |
345 virtual bool singleton(void) const; // TRUE if type is a singleton | |
346 virtual bool empty(void) const; // TRUE if type is vacuous | |
347 public: | |
348 const float _f; // Float constant | |
349 | |
350 static const TypeF *make(float f); | |
351 | |
352 virtual bool is_finite() const; // Has a finite value | |
353 virtual bool is_nan() const; // Is not a number (NaN) | |
354 | |
355 virtual const Type *xmeet( const Type *t ) const; | |
356 virtual const Type *xdual() const; // Compute dual right now. | |
357 // Convenience common pre-built types. | |
358 static const TypeF *ZERO; // positive zero only | |
359 static const TypeF *ONE; | |
360 #ifndef PRODUCT | |
361 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
362 #endif | |
363 }; | |
364 | |
365 //------------------------------TypeD------------------------------------------ | |
366 // Class of Double-Constant Types. | |
367 class TypeD : public Type { | |
368 TypeD( double d ) : Type(DoubleCon), _d(d) {}; | |
369 public: | |
370 virtual bool eq( const Type *t ) const; | |
371 virtual int hash() const; // Type specific hashing | |
372 virtual bool singleton(void) const; // TRUE if type is a singleton | |
373 virtual bool empty(void) const; // TRUE if type is vacuous | |
374 public: | |
375 const double _d; // Double constant | |
376 | |
377 static const TypeD *make(double d); | |
378 | |
379 virtual bool is_finite() const; // Has a finite value | |
380 virtual bool is_nan() const; // Is not a number (NaN) | |
381 | |
382 virtual const Type *xmeet( const Type *t ) const; | |
383 virtual const Type *xdual() const; // Compute dual right now. | |
384 // Convenience common pre-built types. | |
385 static const TypeD *ZERO; // positive zero only | |
386 static const TypeD *ONE; | |
387 #ifndef PRODUCT | |
388 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
389 #endif | |
390 }; | |
391 | |
392 //------------------------------TypeInt---------------------------------------- | |
393 // Class of integer ranges, the set of integers between a lower bound and an | |
394 // upper bound, inclusive. | |
395 class TypeInt : public Type { | |
396 TypeInt( jint lo, jint hi, int w ); | |
397 public: | |
398 virtual bool eq( const Type *t ) const; | |
399 virtual int hash() const; // Type specific hashing | |
400 virtual bool singleton(void) const; // TRUE if type is a singleton | |
401 virtual bool empty(void) const; // TRUE if type is vacuous | |
402 public: | |
403 const jint _lo, _hi; // Lower bound, upper bound | |
404 const short _widen; // Limit on times we widen this sucker | |
405 | |
406 static const TypeInt *make(jint lo); | |
407 // must always specify w | |
408 static const TypeInt *make(jint lo, jint hi, int w); | |
409 | |
410 // Check for single integer | |
411 int is_con() const { return _lo==_hi; } | |
412 bool is_con(int i) const { return is_con() && _lo == i; } | |
413 jint get_con() const { assert( is_con(), "" ); return _lo; } | |
414 | |
415 virtual bool is_finite() const; // Has a finite value | |
416 | |
417 virtual const Type *xmeet( const Type *t ) const; | |
418 virtual const Type *xdual() const; // Compute dual right now. | |
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419 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
0 | 420 virtual const Type *narrow( const Type *t ) const; |
421 // Do not kill _widen bits. | |
422 virtual const Type *filter( const Type *kills ) const; | |
423 // Convenience common pre-built types. | |
424 static const TypeInt *MINUS_1; | |
425 static const TypeInt *ZERO; | |
426 static const TypeInt *ONE; | |
427 static const TypeInt *BOOL; | |
428 static const TypeInt *CC; | |
429 static const TypeInt *CC_LT; // [-1] == MINUS_1 | |
430 static const TypeInt *CC_GT; // [1] == ONE | |
431 static const TypeInt *CC_EQ; // [0] == ZERO | |
432 static const TypeInt *CC_LE; // [-1,0] | |
433 static const TypeInt *CC_GE; // [0,1] == BOOL (!) | |
434 static const TypeInt *BYTE; | |
624 | 435 static const TypeInt *UBYTE; |
0 | 436 static const TypeInt *CHAR; |
437 static const TypeInt *SHORT; | |
438 static const TypeInt *POS; | |
439 static const TypeInt *POS1; | |
440 static const TypeInt *INT; | |
441 static const TypeInt *SYMINT; // symmetric range [-max_jint..max_jint] | |
442 #ifndef PRODUCT | |
443 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
444 #endif | |
445 }; | |
446 | |
447 | |
448 //------------------------------TypeLong--------------------------------------- | |
449 // Class of long integer ranges, the set of integers between a lower bound and | |
450 // an upper bound, inclusive. | |
451 class TypeLong : public Type { | |
452 TypeLong( jlong lo, jlong hi, int w ); | |
453 public: | |
454 virtual bool eq( const Type *t ) const; | |
455 virtual int hash() const; // Type specific hashing | |
456 virtual bool singleton(void) const; // TRUE if type is a singleton | |
457 virtual bool empty(void) const; // TRUE if type is vacuous | |
458 public: | |
459 const jlong _lo, _hi; // Lower bound, upper bound | |
460 const short _widen; // Limit on times we widen this sucker | |
461 | |
462 static const TypeLong *make(jlong lo); | |
463 // must always specify w | |
464 static const TypeLong *make(jlong lo, jlong hi, int w); | |
465 | |
466 // Check for single integer | |
467 int is_con() const { return _lo==_hi; } | |
145 | 468 bool is_con(int i) const { return is_con() && _lo == i; } |
0 | 469 jlong get_con() const { assert( is_con(), "" ); return _lo; } |
470 | |
471 virtual bool is_finite() const; // Has a finite value | |
472 | |
473 virtual const Type *xmeet( const Type *t ) const; | |
474 virtual const Type *xdual() const; // Compute dual right now. | |
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475 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
0 | 476 virtual const Type *narrow( const Type *t ) const; |
477 // Do not kill _widen bits. | |
478 virtual const Type *filter( const Type *kills ) const; | |
479 // Convenience common pre-built types. | |
480 static const TypeLong *MINUS_1; | |
481 static const TypeLong *ZERO; | |
482 static const TypeLong *ONE; | |
483 static const TypeLong *POS; | |
484 static const TypeLong *LONG; | |
485 static const TypeLong *INT; // 32-bit subrange [min_jint..max_jint] | |
486 static const TypeLong *UINT; // 32-bit unsigned [0..max_juint] | |
487 #ifndef PRODUCT | |
488 virtual void dump2( Dict &d, uint, outputStream *st ) const;// Specialized per-Type dumping | |
489 #endif | |
490 }; | |
491 | |
492 //------------------------------TypeTuple-------------------------------------- | |
493 // Class of Tuple Types, essentially type collections for function signatures | |
494 // and class layouts. It happens to also be a fast cache for the HotSpot | |
495 // signature types. | |
496 class TypeTuple : public Type { | |
497 TypeTuple( uint cnt, const Type **fields ) : Type(Tuple), _cnt(cnt), _fields(fields) { } | |
498 public: | |
499 virtual bool eq( const Type *t ) const; | |
500 virtual int hash() const; // Type specific hashing | |
501 virtual bool singleton(void) const; // TRUE if type is a singleton | |
502 virtual bool empty(void) const; // TRUE if type is vacuous | |
503 | |
504 public: | |
505 const uint _cnt; // Count of fields | |
506 const Type ** const _fields; // Array of field types | |
507 | |
508 // Accessors: | |
509 uint cnt() const { return _cnt; } | |
510 const Type* field_at(uint i) const { | |
511 assert(i < _cnt, "oob"); | |
512 return _fields[i]; | |
513 } | |
514 void set_field_at(uint i, const Type* t) { | |
515 assert(i < _cnt, "oob"); | |
516 _fields[i] = t; | |
517 } | |
518 | |
519 static const TypeTuple *make( uint cnt, const Type **fields ); | |
520 static const TypeTuple *make_range(ciSignature *sig); | |
521 static const TypeTuple *make_domain(ciInstanceKlass* recv, ciSignature *sig); | |
522 | |
523 // Subroutine call type with space allocated for argument types | |
524 static const Type **fields( uint arg_cnt ); | |
525 | |
526 virtual const Type *xmeet( const Type *t ) const; | |
527 virtual const Type *xdual() const; // Compute dual right now. | |
528 // Convenience common pre-built types. | |
529 static const TypeTuple *IFBOTH; | |
530 static const TypeTuple *IFFALSE; | |
531 static const TypeTuple *IFTRUE; | |
532 static const TypeTuple *IFNEITHER; | |
533 static const TypeTuple *LOOPBODY; | |
534 static const TypeTuple *MEMBAR; | |
535 static const TypeTuple *STORECONDITIONAL; | |
536 static const TypeTuple *START_I2C; | |
537 static const TypeTuple *INT_PAIR; | |
538 static const TypeTuple *LONG_PAIR; | |
539 #ifndef PRODUCT | |
540 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
541 #endif | |
542 }; | |
543 | |
544 //------------------------------TypeAry---------------------------------------- | |
545 // Class of Array Types | |
546 class TypeAry : public Type { | |
547 TypeAry( const Type *elem, const TypeInt *size) : Type(Array), | |
548 _elem(elem), _size(size) {} | |
549 public: | |
550 virtual bool eq( const Type *t ) const; | |
551 virtual int hash() const; // Type specific hashing | |
552 virtual bool singleton(void) const; // TRUE if type is a singleton | |
553 virtual bool empty(void) const; // TRUE if type is vacuous | |
554 | |
555 private: | |
556 const Type *_elem; // Element type of array | |
557 const TypeInt *_size; // Elements in array | |
558 friend class TypeAryPtr; | |
559 | |
560 public: | |
561 static const TypeAry *make( const Type *elem, const TypeInt *size); | |
562 | |
563 virtual const Type *xmeet( const Type *t ) const; | |
564 virtual const Type *xdual() const; // Compute dual right now. | |
565 bool ary_must_be_exact() const; // true if arrays of such are never generic | |
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566 #ifdef ASSERT |
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567 // One type is interface, the other is oop |
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568 virtual bool interface_vs_oop(const Type *t) const; |
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569 #endif |
0 | 570 #ifndef PRODUCT |
571 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
572 #endif | |
573 }; | |
574 | |
575 //------------------------------TypePtr---------------------------------------- | |
576 // Class of machine Pointer Types: raw data, instances or arrays. | |
577 // If the _base enum is AnyPtr, then this refers to all of the above. | |
578 // Otherwise the _base will indicate which subset of pointers is affected, | |
579 // and the class will be inherited from. | |
580 class TypePtr : public Type { | |
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581 friend class TypeNarrowOop; |
0 | 582 public: |
583 enum PTR { TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, lastPTR }; | |
584 protected: | |
585 TypePtr( TYPES t, PTR ptr, int offset ) : Type(t), _ptr(ptr), _offset(offset) {} | |
586 virtual bool eq( const Type *t ) const; | |
587 virtual int hash() const; // Type specific hashing | |
588 static const PTR ptr_meet[lastPTR][lastPTR]; | |
589 static const PTR ptr_dual[lastPTR]; | |
590 static const char * const ptr_msg[lastPTR]; | |
591 | |
592 public: | |
593 const int _offset; // Offset into oop, with TOP & BOT | |
594 const PTR _ptr; // Pointer equivalence class | |
595 | |
596 const int offset() const { return _offset; } | |
597 const PTR ptr() const { return _ptr; } | |
598 | |
599 static const TypePtr *make( TYPES t, PTR ptr, int offset ); | |
600 | |
601 // Return a 'ptr' version of this type | |
602 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
603 | |
604 virtual intptr_t get_con() const; | |
605 | |
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606 int xadd_offset( intptr_t offset ) const; |
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607 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 608 |
609 virtual bool singleton(void) const; // TRUE if type is a singleton | |
610 virtual bool empty(void) const; // TRUE if type is vacuous | |
611 virtual const Type *xmeet( const Type *t ) const; | |
612 int meet_offset( int offset ) const; | |
613 int dual_offset( ) const; | |
614 virtual const Type *xdual() const; // Compute dual right now. | |
615 | |
616 // meet, dual and join over pointer equivalence sets | |
617 PTR meet_ptr( const PTR in_ptr ) const { return ptr_meet[in_ptr][ptr()]; } | |
618 PTR dual_ptr() const { return ptr_dual[ptr()]; } | |
619 | |
620 // This is textually confusing unless one recalls that | |
621 // join(t) == dual()->meet(t->dual())->dual(). | |
622 PTR join_ptr( const PTR in_ptr ) const { | |
623 return ptr_dual[ ptr_meet[ ptr_dual[in_ptr] ] [ dual_ptr() ] ]; | |
624 } | |
625 | |
626 // Tests for relation to centerline of type lattice: | |
627 static bool above_centerline(PTR ptr) { return (ptr <= AnyNull); } | |
628 static bool below_centerline(PTR ptr) { return (ptr >= NotNull); } | |
629 // Convenience common pre-built types. | |
630 static const TypePtr *NULL_PTR; | |
631 static const TypePtr *NOTNULL; | |
632 static const TypePtr *BOTTOM; | |
633 #ifndef PRODUCT | |
634 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
635 #endif | |
636 }; | |
637 | |
638 //------------------------------TypeRawPtr------------------------------------- | |
639 // Class of raw pointers, pointers to things other than Oops. Examples | |
640 // include the stack pointer, top of heap, card-marking area, handles, etc. | |
641 class TypeRawPtr : public TypePtr { | |
642 protected: | |
643 TypeRawPtr( PTR ptr, address bits ) : TypePtr(RawPtr,ptr,0), _bits(bits){} | |
644 public: | |
645 virtual bool eq( const Type *t ) const; | |
646 virtual int hash() const; // Type specific hashing | |
647 | |
648 const address _bits; // Constant value, if applicable | |
649 | |
650 static const TypeRawPtr *make( PTR ptr ); | |
651 static const TypeRawPtr *make( address bits ); | |
652 | |
653 // Return a 'ptr' version of this type | |
654 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
655 | |
656 virtual intptr_t get_con() const; | |
657 | |
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658 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 659 |
660 virtual const Type *xmeet( const Type *t ) const; | |
661 virtual const Type *xdual() const; // Compute dual right now. | |
662 // Convenience common pre-built types. | |
663 static const TypeRawPtr *BOTTOM; | |
664 static const TypeRawPtr *NOTNULL; | |
665 #ifndef PRODUCT | |
666 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
667 #endif | |
668 }; | |
669 | |
670 //------------------------------TypeOopPtr------------------------------------- | |
671 // Some kind of oop (Java pointer), either klass or instance or array. | |
672 class TypeOopPtr : public TypePtr { | |
673 protected: | |
163 | 674 TypeOopPtr( TYPES t, PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id ); |
0 | 675 public: |
676 virtual bool eq( const Type *t ) const; | |
677 virtual int hash() const; // Type specific hashing | |
678 virtual bool singleton(void) const; // TRUE if type is a singleton | |
679 enum { | |
223 | 680 InstanceTop = -1, // undefined instance |
681 InstanceBot = 0 // any possible instance | |
0 | 682 }; |
683 protected: | |
684 | |
685 // Oop is NULL, unless this is a constant oop. | |
686 ciObject* _const_oop; // Constant oop | |
687 // If _klass is NULL, then so is _sig. This is an unloaded klass. | |
688 ciKlass* _klass; // Klass object | |
689 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) | |
690 bool _klass_is_exact; | |
163 | 691 bool _is_ptr_to_narrowoop; |
0 | 692 |
223 | 693 // If not InstanceTop or InstanceBot, indicates that this is |
694 // a particular instance of this type which is distinct. | |
695 // This is the the node index of the allocation node creating this instance. | |
696 int _instance_id; | |
0 | 697 |
698 static const TypeOopPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); | |
699 | |
223 | 700 int dual_instance_id() const; |
701 int meet_instance_id(int uid) const; | |
0 | 702 |
703 public: | |
704 // Creates a type given a klass. Correctly handles multi-dimensional arrays | |
705 // Respects UseUniqueSubclasses. | |
706 // If the klass is final, the resulting type will be exact. | |
707 static const TypeOopPtr* make_from_klass(ciKlass* klass) { | |
708 return make_from_klass_common(klass, true, false); | |
709 } | |
710 // Same as before, but will produce an exact type, even if | |
711 // the klass is not final, as long as it has exactly one implementation. | |
712 static const TypeOopPtr* make_from_klass_unique(ciKlass* klass) { | |
713 return make_from_klass_common(klass, true, true); | |
714 } | |
715 // Same as before, but does not respects UseUniqueSubclasses. | |
716 // Use this only for creating array element types. | |
717 static const TypeOopPtr* make_from_klass_raw(ciKlass* klass) { | |
718 return make_from_klass_common(klass, false, false); | |
719 } | |
720 // Creates a singleton type given an object. | |
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721 // If the object cannot be rendered as a constant, |
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722 // may return a non-singleton type. |
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723 // If require_constant, produce a NULL if a singleton is not possible. |
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724 static const TypeOopPtr* make_from_constant(ciObject* o, bool require_constant = false); |
0 | 725 |
726 // Make a generic (unclassed) pointer to an oop. | |
992 | 727 static const TypeOopPtr* make(PTR ptr, int offset, int instance_id); |
0 | 728 |
729 ciObject* const_oop() const { return _const_oop; } | |
730 virtual ciKlass* klass() const { return _klass; } | |
731 bool klass_is_exact() const { return _klass_is_exact; } | |
163 | 732 |
733 // Returns true if this pointer points at memory which contains a | |
734 // compressed oop references. | |
735 bool is_ptr_to_narrowoop_nv() const { return _is_ptr_to_narrowoop; } | |
736 | |
223 | 737 bool is_known_instance() const { return _instance_id > 0; } |
738 int instance_id() const { return _instance_id; } | |
739 bool is_known_instance_field() const { return is_known_instance() && _offset >= 0; } | |
0 | 740 |
741 virtual intptr_t get_con() const; | |
742 | |
743 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
744 | |
745 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
746 | |
223 | 747 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
0 | 748 |
749 // corresponding pointer to klass, for a given instance | |
750 const TypeKlassPtr* as_klass_type() const; | |
751 | |
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752 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 753 |
754 virtual const Type *xmeet( const Type *t ) const; | |
755 virtual const Type *xdual() const; // Compute dual right now. | |
756 | |
757 // Do not allow interface-vs.-noninterface joins to collapse to top. | |
758 virtual const Type *filter( const Type *kills ) const; | |
759 | |
760 // Convenience common pre-built type. | |
761 static const TypeOopPtr *BOTTOM; | |
762 #ifndef PRODUCT | |
763 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
764 #endif | |
765 }; | |
766 | |
767 //------------------------------TypeInstPtr------------------------------------ | |
768 // Class of Java object pointers, pointing either to non-array Java instances | |
769 // or to a klassOop (including array klasses). | |
770 class TypeInstPtr : public TypeOopPtr { | |
771 TypeInstPtr( PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id ); | |
772 virtual bool eq( const Type *t ) const; | |
773 virtual int hash() const; // Type specific hashing | |
774 | |
775 ciSymbol* _name; // class name | |
776 | |
777 public: | |
778 ciSymbol* name() const { return _name; } | |
779 | |
780 bool is_loaded() const { return _klass->is_loaded(); } | |
781 | |
782 // Make a pointer to a constant oop. | |
783 static const TypeInstPtr *make(ciObject* o) { | |
784 return make(TypePtr::Constant, o->klass(), true, o, 0); | |
785 } | |
786 | |
787 // Make a pointer to a constant oop with offset. | |
788 static const TypeInstPtr *make(ciObject* o, int offset) { | |
789 return make(TypePtr::Constant, o->klass(), true, o, offset); | |
790 } | |
791 | |
792 // Make a pointer to some value of type klass. | |
793 static const TypeInstPtr *make(PTR ptr, ciKlass* klass) { | |
794 return make(ptr, klass, false, NULL, 0); | |
795 } | |
796 | |
797 // Make a pointer to some non-polymorphic value of exactly type klass. | |
798 static const TypeInstPtr *make_exact(PTR ptr, ciKlass* klass) { | |
799 return make(ptr, klass, true, NULL, 0); | |
800 } | |
801 | |
802 // Make a pointer to some value of type klass with offset. | |
803 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, int offset) { | |
804 return make(ptr, klass, false, NULL, offset); | |
805 } | |
806 | |
807 // Make a pointer to an oop. | |
223 | 808 static const TypeInstPtr *make(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id = InstanceBot ); |
0 | 809 |
810 // If this is a java.lang.Class constant, return the type for it or NULL. | |
811 // Pass to Type::get_const_type to turn it to a type, which will usually | |
812 // be a TypeInstPtr, but may also be a TypeInt::INT for int.class, etc. | |
813 ciType* java_mirror_type() const; | |
814 | |
815 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
816 | |
817 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
818 | |
223 | 819 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
0 | 820 |
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821 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 822 |
823 virtual const Type *xmeet( const Type *t ) const; | |
824 virtual const TypeInstPtr *xmeet_unloaded( const TypeInstPtr *t ) const; | |
825 virtual const Type *xdual() const; // Compute dual right now. | |
826 | |
827 // Convenience common pre-built types. | |
828 static const TypeInstPtr *NOTNULL; | |
829 static const TypeInstPtr *BOTTOM; | |
830 static const TypeInstPtr *MIRROR; | |
831 static const TypeInstPtr *MARK; | |
832 static const TypeInstPtr *KLASS; | |
833 #ifndef PRODUCT | |
834 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
835 #endif | |
836 }; | |
837 | |
838 //------------------------------TypeAryPtr------------------------------------- | |
839 // Class of Java array pointers | |
840 class TypeAryPtr : public TypeOopPtr { | |
1761 | 841 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) { |
842 #ifdef ASSERT | |
843 if (k != NULL) { | |
844 // Verify that specified klass and TypeAryPtr::klass() follow the same rules. | |
845 ciKlass* ck = compute_klass(true); | |
1792 | 846 if (k != ck) { |
1761 | 847 this->dump(); tty->cr(); |
848 tty->print(" k: "); | |
849 k->print(); tty->cr(); | |
850 tty->print("ck: "); | |
851 if (ck != NULL) ck->print(); | |
852 else tty->print("<NULL>"); | |
853 tty->cr(); | |
854 assert(false, "unexpected TypeAryPtr::_klass"); | |
855 } | |
856 } | |
857 #endif | |
858 } | |
0 | 859 virtual bool eq( const Type *t ) const; |
860 virtual int hash() const; // Type specific hashing | |
861 const TypeAry *_ary; // Array we point into | |
862 | |
1761 | 863 ciKlass* compute_klass(DEBUG_ONLY(bool verify = false)) const; |
864 | |
0 | 865 public: |
866 // Accessors | |
867 ciKlass* klass() const; | |
868 const TypeAry* ary() const { return _ary; } | |
869 const Type* elem() const { return _ary->_elem; } | |
870 const TypeInt* size() const { return _ary->_size; } | |
871 | |
223 | 872 static const TypeAryPtr *make( PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id = InstanceBot); |
0 | 873 // Constant pointer to array |
223 | 874 static const TypeAryPtr *make( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id = InstanceBot); |
0 | 875 |
876 // Return a 'ptr' version of this type | |
877 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
878 | |
879 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
880 | |
223 | 881 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
0 | 882 |
883 virtual const TypeAryPtr* cast_to_size(const TypeInt* size) const; | |
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884 virtual const TypeInt* narrow_size_type(const TypeInt* size) const; |
0 | 885 |
886 virtual bool empty(void) const; // TRUE if type is vacuous | |
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887 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 888 |
889 virtual const Type *xmeet( const Type *t ) const; | |
890 virtual const Type *xdual() const; // Compute dual right now. | |
891 | |
892 // Convenience common pre-built types. | |
893 static const TypeAryPtr *RANGE; | |
894 static const TypeAryPtr *OOPS; | |
163 | 895 static const TypeAryPtr *NARROWOOPS; |
0 | 896 static const TypeAryPtr *BYTES; |
897 static const TypeAryPtr *SHORTS; | |
898 static const TypeAryPtr *CHARS; | |
899 static const TypeAryPtr *INTS; | |
900 static const TypeAryPtr *LONGS; | |
901 static const TypeAryPtr *FLOATS; | |
902 static const TypeAryPtr *DOUBLES; | |
903 // selects one of the above: | |
904 static const TypeAryPtr *get_array_body_type(BasicType elem) { | |
905 assert((uint)elem <= T_CONFLICT && _array_body_type[elem] != NULL, "bad elem type"); | |
906 return _array_body_type[elem]; | |
907 } | |
908 static const TypeAryPtr *_array_body_type[T_CONFLICT+1]; | |
909 // sharpen the type of an int which is used as an array size | |
820
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910 #ifdef ASSERT |
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911 // One type is interface, the other is oop |
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912 virtual bool interface_vs_oop(const Type *t) const; |
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913 #endif |
0 | 914 #ifndef PRODUCT |
915 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
916 #endif | |
917 }; | |
918 | |
919 //------------------------------TypeKlassPtr----------------------------------- | |
920 // Class of Java Klass pointers | |
921 class TypeKlassPtr : public TypeOopPtr { | |
922 TypeKlassPtr( PTR ptr, ciKlass* klass, int offset ); | |
923 | |
924 virtual bool eq( const Type *t ) const; | |
925 virtual int hash() const; // Type specific hashing | |
926 | |
927 public: | |
928 ciSymbol* name() const { return _klass->name(); } | |
929 | |
555 | 930 bool is_loaded() const { return _klass->is_loaded(); } |
931 | |
0 | 932 // ptr to klass 'k' |
933 static const TypeKlassPtr *make( ciKlass* k ) { return make( TypePtr::Constant, k, 0); } | |
934 // ptr to klass 'k' with offset | |
935 static const TypeKlassPtr *make( ciKlass* k, int offset ) { return make( TypePtr::Constant, k, offset); } | |
936 // ptr to klass 'k' or sub-klass | |
937 static const TypeKlassPtr *make( PTR ptr, ciKlass* k, int offset); | |
938 | |
939 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
940 | |
941 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
942 | |
943 // corresponding pointer to instance, for a given class | |
944 const TypeOopPtr* as_instance_type() const; | |
945 | |
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946 virtual const TypePtr *add_offset( intptr_t offset ) const; |
0 | 947 virtual const Type *xmeet( const Type *t ) const; |
948 virtual const Type *xdual() const; // Compute dual right now. | |
949 | |
950 // Convenience common pre-built types. | |
951 static const TypeKlassPtr* OBJECT; // Not-null object klass or below | |
952 static const TypeKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same | |
953 #ifndef PRODUCT | |
954 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
955 #endif | |
956 }; | |
957 | |
163 | 958 //------------------------------TypeNarrowOop---------------------------------- |
113
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959 // A compressed reference to some kind of Oop. This type wraps around |
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960 // a preexisting TypeOopPtr and forwards most of it's operations to |
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961 // the underlying type. It's only real purpose is to track the |
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962 // oopness of the compressed oop value when we expose the conversion |
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963 // between the normal and the compressed form. |
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964 class TypeNarrowOop : public Type { |
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965 protected: |
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966 const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR |
113
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967 |
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968 TypeNarrowOop( const TypePtr* ptrtype): Type(NarrowOop), |
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969 _ptrtype(ptrtype) { |
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970 assert(ptrtype->offset() == 0 || |
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971 ptrtype->offset() == OffsetBot || |
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972 ptrtype->offset() == OffsetTop, "no real offsets"); |
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973 } |
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974 public: |
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975 virtual bool eq( const Type *t ) const; |
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976 virtual int hash() const; // Type specific hashing |
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977 virtual bool singleton(void) const; // TRUE if type is a singleton |
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978 |
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979 virtual const Type *xmeet( const Type *t ) const; |
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980 virtual const Type *xdual() const; // Compute dual right now. |
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981 |
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982 virtual intptr_t get_con() const; |
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983 |
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984 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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985 virtual const Type *filter( const Type *kills ) const; |
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986 |
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987 virtual bool empty(void) const; // TRUE if type is vacuous |
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988 |
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989 static const TypeNarrowOop *make( const TypePtr* type); |
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990 |
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991 static const TypeNarrowOop* make_from_constant(ciObject* con, bool require_constant = false) { |
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992 return make(TypeOopPtr::make_from_constant(con, require_constant)); |
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993 } |
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994 |
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995 // returns the equivalent ptr type for this compressed pointer |
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996 const TypePtr *get_ptrtype() const { |
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997 return _ptrtype; |
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998 } |
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999 |
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1000 static const TypeNarrowOop *BOTTOM; |
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1001 static const TypeNarrowOop *NULL_PTR; |
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1002 |
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1003 #ifndef PRODUCT |
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1004 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1005 #endif |
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1006 }; |
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1007 |
0 | 1008 //------------------------------TypeFunc--------------------------------------- |
1009 // Class of Array Types | |
1010 class TypeFunc : public Type { | |
1011 TypeFunc( const TypeTuple *domain, const TypeTuple *range ) : Type(Function), _domain(domain), _range(range) {} | |
1012 virtual bool eq( const Type *t ) const; | |
1013 virtual int hash() const; // Type specific hashing | |
1014 virtual bool singleton(void) const; // TRUE if type is a singleton | |
1015 virtual bool empty(void) const; // TRUE if type is vacuous | |
1016 public: | |
1017 // Constants are shared among ADLC and VM | |
1018 enum { Control = AdlcVMDeps::Control, | |
1019 I_O = AdlcVMDeps::I_O, | |
1020 Memory = AdlcVMDeps::Memory, | |
1021 FramePtr = AdlcVMDeps::FramePtr, | |
1022 ReturnAdr = AdlcVMDeps::ReturnAdr, | |
1023 Parms = AdlcVMDeps::Parms | |
1024 }; | |
1025 | |
1026 const TypeTuple* const _domain; // Domain of inputs | |
1027 const TypeTuple* const _range; // Range of results | |
1028 | |
1029 // Accessors: | |
1030 const TypeTuple* domain() const { return _domain; } | |
1031 const TypeTuple* range() const { return _range; } | |
1032 | |
1033 static const TypeFunc *make(ciMethod* method); | |
1034 static const TypeFunc *make(ciSignature signature, const Type* extra); | |
1035 static const TypeFunc *make(const TypeTuple* domain, const TypeTuple* range); | |
1036 | |
1037 virtual const Type *xmeet( const Type *t ) const; | |
1038 virtual const Type *xdual() const; // Compute dual right now. | |
1039 | |
1040 BasicType return_type() const; | |
1041 | |
1042 #ifndef PRODUCT | |
1043 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
1044 void print_flattened() const; // Print a 'flattened' signature | |
1045 #endif | |
1046 // Convenience common pre-built types. | |
1047 }; | |
1048 | |
1049 //------------------------------accessors-------------------------------------- | |
163 | 1050 inline bool Type::is_ptr_to_narrowoop() const { |
1051 #ifdef _LP64 | |
1052 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowoop_nv()); | |
1053 #else | |
1054 return false; | |
1055 #endif | |
1056 } | |
1057 | |
0 | 1058 inline float Type::getf() const { |
1059 assert( _base == FloatCon, "Not a FloatCon" ); | |
1060 return ((TypeF*)this)->_f; | |
1061 } | |
1062 | |
1063 inline double Type::getd() const { | |
1064 assert( _base == DoubleCon, "Not a DoubleCon" ); | |
1065 return ((TypeD*)this)->_d; | |
1066 } | |
1067 | |
1068 inline const TypeF *Type::is_float_constant() const { | |
1069 assert( _base == FloatCon, "Not a Float" ); | |
1070 return (TypeF*)this; | |
1071 } | |
1072 | |
1073 inline const TypeF *Type::isa_float_constant() const { | |
1074 return ( _base == FloatCon ? (TypeF*)this : NULL); | |
1075 } | |
1076 | |
1077 inline const TypeD *Type::is_double_constant() const { | |
1078 assert( _base == DoubleCon, "Not a Double" ); | |
1079 return (TypeD*)this; | |
1080 } | |
1081 | |
1082 inline const TypeD *Type::isa_double_constant() const { | |
1083 return ( _base == DoubleCon ? (TypeD*)this : NULL); | |
1084 } | |
1085 | |
1086 inline const TypeInt *Type::is_int() const { | |
1087 assert( _base == Int, "Not an Int" ); | |
1088 return (TypeInt*)this; | |
1089 } | |
1090 | |
1091 inline const TypeInt *Type::isa_int() const { | |
1092 return ( _base == Int ? (TypeInt*)this : NULL); | |
1093 } | |
1094 | |
1095 inline const TypeLong *Type::is_long() const { | |
1096 assert( _base == Long, "Not a Long" ); | |
1097 return (TypeLong*)this; | |
1098 } | |
1099 | |
1100 inline const TypeLong *Type::isa_long() const { | |
1101 return ( _base == Long ? (TypeLong*)this : NULL); | |
1102 } | |
1103 | |
1104 inline const TypeTuple *Type::is_tuple() const { | |
1105 assert( _base == Tuple, "Not a Tuple" ); | |
1106 return (TypeTuple*)this; | |
1107 } | |
1108 | |
1109 inline const TypeAry *Type::is_ary() const { | |
1110 assert( _base == Array , "Not an Array" ); | |
1111 return (TypeAry*)this; | |
1112 } | |
1113 | |
1114 inline const TypePtr *Type::is_ptr() const { | |
1115 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
1116 assert(_base >= AnyPtr && _base <= KlassPtr, "Not a pointer"); | |
1117 return (TypePtr*)this; | |
1118 } | |
1119 | |
1120 inline const TypePtr *Type::isa_ptr() const { | |
1121 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
1122 return (_base >= AnyPtr && _base <= KlassPtr) ? (TypePtr*)this : NULL; | |
1123 } | |
1124 | |
1125 inline const TypeOopPtr *Type::is_oopptr() const { | |
1126 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
1127 assert(_base >= OopPtr && _base <= KlassPtr, "Not a Java pointer" ) ; | |
1128 return (TypeOopPtr*)this; | |
1129 } | |
1130 | |
1131 inline const TypeOopPtr *Type::isa_oopptr() const { | |
1132 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
1133 return (_base >= OopPtr && _base <= KlassPtr) ? (TypeOopPtr*)this : NULL; | |
1134 } | |
1135 | |
113
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1136 inline const TypeRawPtr *Type::isa_rawptr() const { |
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1137 return (_base == RawPtr) ? (TypeRawPtr*)this : NULL; |
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1138 } |
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1139 |
0 | 1140 inline const TypeRawPtr *Type::is_rawptr() const { |
1141 assert( _base == RawPtr, "Not a raw pointer" ); | |
1142 return (TypeRawPtr*)this; | |
1143 } | |
1144 | |
1145 inline const TypeInstPtr *Type::isa_instptr() const { | |
1146 return (_base == InstPtr) ? (TypeInstPtr*)this : NULL; | |
1147 } | |
1148 | |
1149 inline const TypeInstPtr *Type::is_instptr() const { | |
1150 assert( _base == InstPtr, "Not an object pointer" ); | |
1151 return (TypeInstPtr*)this; | |
1152 } | |
1153 | |
1154 inline const TypeAryPtr *Type::isa_aryptr() const { | |
1155 return (_base == AryPtr) ? (TypeAryPtr*)this : NULL; | |
1156 } | |
1157 | |
1158 inline const TypeAryPtr *Type::is_aryptr() const { | |
1159 assert( _base == AryPtr, "Not an array pointer" ); | |
1160 return (TypeAryPtr*)this; | |
1161 } | |
1162 | |
113
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1163 inline const TypeNarrowOop *Type::is_narrowoop() const { |
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1164 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
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1165 assert(_base == NarrowOop, "Not a narrow oop" ) ; |
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1166 return (TypeNarrowOop*)this; |
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1167 } |
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1168 |
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1169 inline const TypeNarrowOop *Type::isa_narrowoop() const { |
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1170 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
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1171 return (_base == NarrowOop) ? (TypeNarrowOop*)this : NULL; |
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1172 } |
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1173 |
0 | 1174 inline const TypeKlassPtr *Type::isa_klassptr() const { |
1175 return (_base == KlassPtr) ? (TypeKlassPtr*)this : NULL; | |
1176 } | |
1177 | |
1178 inline const TypeKlassPtr *Type::is_klassptr() const { | |
1179 assert( _base == KlassPtr, "Not a klass pointer" ); | |
1180 return (TypeKlassPtr*)this; | |
1181 } | |
1182 | |
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1183 inline const TypePtr* Type::make_ptr() const { |
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1184 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype() : |
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1185 (isa_ptr() ? is_ptr() : NULL); |
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1186 } |
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1187 |
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1188 inline const TypeOopPtr* Type::make_oopptr() const { |
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1189 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->is_oopptr() : is_oopptr(); |
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1190 } |
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1191 |
221
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1192 inline const TypeNarrowOop* Type::make_narrowoop() const { |
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1193 return (_base == NarrowOop) ? is_narrowoop() : |
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1194 (isa_ptr() ? TypeNarrowOop::make(is_ptr()) : NULL); |
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1195 } |
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1196 |
0 | 1197 inline bool Type::is_floatingpoint() const { |
1198 if( (_base == FloatCon) || (_base == FloatBot) || | |
1199 (_base == DoubleCon) || (_base == DoubleBot) ) | |
1200 return true; | |
1201 return false; | |
1202 } | |
1203 | |
1204 | |
1205 // =============================================================== | |
1206 // Things that need to be 64-bits in the 64-bit build but | |
1207 // 32-bits in the 32-bit build. Done this way to get full | |
1208 // optimization AND strong typing. | |
1209 #ifdef _LP64 | |
1210 | |
1211 // For type queries and asserts | |
1212 #define is_intptr_t is_long | |
1213 #define isa_intptr_t isa_long | |
1214 #define find_intptr_t_type find_long_type | |
1215 #define find_intptr_t_con find_long_con | |
1216 #define TypeX TypeLong | |
1217 #define Type_X Type::Long | |
1218 #define TypeX_X TypeLong::LONG | |
1219 #define TypeX_ZERO TypeLong::ZERO | |
1220 // For 'ideal_reg' machine registers | |
1221 #define Op_RegX Op_RegL | |
1222 // For phase->intcon variants | |
1223 #define MakeConX longcon | |
1224 #define ConXNode ConLNode | |
1225 // For array index arithmetic | |
1226 #define MulXNode MulLNode | |
1227 #define AndXNode AndLNode | |
1228 #define OrXNode OrLNode | |
1229 #define CmpXNode CmpLNode | |
1230 #define SubXNode SubLNode | |
1231 #define LShiftXNode LShiftLNode | |
1232 // For object size computation: | |
1233 #define AddXNode AddLNode | |
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1234 #define RShiftXNode RShiftLNode |
0 | 1235 // For card marks and hashcodes |
1236 #define URShiftXNode URShiftLNode | |
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1237 // UseOptoBiasInlining |
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1238 #define XorXNode XorLNode |
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1239 #define StoreXConditionalNode StoreLConditionalNode |
0 | 1240 // Opcodes |
1241 #define Op_LShiftX Op_LShiftL | |
1242 #define Op_AndX Op_AndL | |
1243 #define Op_AddX Op_AddL | |
1244 #define Op_SubX Op_SubL | |
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1245 #define Op_XorX Op_XorL |
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1246 #define Op_URShiftX Op_URShiftL |
0 | 1247 // conversions |
1248 #define ConvI2X(x) ConvI2L(x) | |
1249 #define ConvL2X(x) (x) | |
1250 #define ConvX2I(x) ConvL2I(x) | |
1251 #define ConvX2L(x) (x) | |
1252 | |
1253 #else | |
1254 | |
1255 // For type queries and asserts | |
1256 #define is_intptr_t is_int | |
1257 #define isa_intptr_t isa_int | |
1258 #define find_intptr_t_type find_int_type | |
1259 #define find_intptr_t_con find_int_con | |
1260 #define TypeX TypeInt | |
1261 #define Type_X Type::Int | |
1262 #define TypeX_X TypeInt::INT | |
1263 #define TypeX_ZERO TypeInt::ZERO | |
1264 // For 'ideal_reg' machine registers | |
1265 #define Op_RegX Op_RegI | |
1266 // For phase->intcon variants | |
1267 #define MakeConX intcon | |
1268 #define ConXNode ConINode | |
1269 // For array index arithmetic | |
1270 #define MulXNode MulINode | |
1271 #define AndXNode AndINode | |
1272 #define OrXNode OrINode | |
1273 #define CmpXNode CmpINode | |
1274 #define SubXNode SubINode | |
1275 #define LShiftXNode LShiftINode | |
1276 // For object size computation: | |
1277 #define AddXNode AddINode | |
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1278 #define RShiftXNode RShiftINode |
0 | 1279 // For card marks and hashcodes |
1280 #define URShiftXNode URShiftINode | |
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1281 // UseOptoBiasInlining |
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1282 #define XorXNode XorINode |
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1283 #define StoreXConditionalNode StoreIConditionalNode |
0 | 1284 // Opcodes |
1285 #define Op_LShiftX Op_LShiftI | |
1286 #define Op_AndX Op_AndI | |
1287 #define Op_AddX Op_AddI | |
1288 #define Op_SubX Op_SubI | |
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1289 #define Op_XorX Op_XorI |
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1290 #define Op_URShiftX Op_URShiftI |
0 | 1291 // conversions |
1292 #define ConvI2X(x) (x) | |
1293 #define ConvL2X(x) ConvL2I(x) | |
1294 #define ConvX2I(x) (x) | |
1295 #define ConvX2L(x) ConvI2L(x) | |
1296 | |
1297 #endif | |
1972 | 1298 |
1299 #endif // SHARE_VM_OPTO_TYPE_HPP |