Mercurial > hg > truffle
annotate src/share/vm/opto/type.hpp @ 10278:6f3fd5150b67
6934604: enable parts of EliminateAutoBox by default
Summary: Resurrected autobox elimination code and enabled part of it by default.
Reviewed-by: roland, twisti
| author | kvn |
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| date | Wed, 08 May 2013 15:08:01 -0700 |
| parents | beebba0acc11 |
| children | 9758d9f36299 |
| rev | line source |
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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 |
| 10278 | 237 bool is_ptr_to_boxing_obj() const; |
| 238 | |
| 239 | |
| 0 | 240 // Convenience access |
| 241 float getf() const; | |
| 242 double getd() const; | |
| 243 | |
| 244 const TypeInt *is_int() const; | |
| 245 const TypeInt *isa_int() const; // Returns NULL if not an Int | |
| 246 const TypeLong *is_long() const; | |
| 247 const TypeLong *isa_long() const; // Returns NULL if not a Long | |
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248 const TypeD *isa_double() const; // Returns NULL if not a Double{Top,Con,Bot} |
| 0 | 249 const TypeD *is_double_constant() const; // Asserts it is a DoubleCon |
| 250 const TypeD *isa_double_constant() const; // Returns NULL if not a DoubleCon | |
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251 const TypeF *isa_float() const; // Returns NULL if not a Float{Top,Con,Bot} |
| 0 | 252 const TypeF *is_float_constant() const; // Asserts it is a FloatCon |
| 253 const TypeF *isa_float_constant() const; // Returns NULL if not a FloatCon | |
| 254 const TypeTuple *is_tuple() const; // Collection of fields, NOT a pointer | |
| 255 const TypeAry *is_ary() const; // Array, NOT array pointer | |
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256 const TypeVect *is_vect() const; // Vector |
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257 const TypeVect *isa_vect() const; // Returns NULL if not a Vector |
| 0 | 258 const TypePtr *is_ptr() const; // Asserts it is a ptr type |
| 259 const TypePtr *isa_ptr() const; // Returns NULL if not ptr type | |
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260 const TypeRawPtr *isa_rawptr() const; // NOT Java oop |
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261 const TypeRawPtr *is_rawptr() const; // Asserts is rawptr |
| 163 | 262 const TypeNarrowOop *is_narrowoop() const; // Java-style GC'd pointer |
| 263 const TypeNarrowOop *isa_narrowoop() const; // Returns NULL if not oop ptr type | |
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264 const TypeNarrowKlass *is_narrowklass() const; // compressed klass pointer |
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265 const TypeNarrowKlass *isa_narrowklass() const;// Returns NULL if not oop ptr type |
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266 const TypeOopPtr *isa_oopptr() const; // Returns NULL if not oop ptr type |
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267 const TypeOopPtr *is_oopptr() const; // Java-style GC'd pointer |
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268 const TypeInstPtr *isa_instptr() const; // Returns NULL if not InstPtr |
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269 const TypeInstPtr *is_instptr() const; // Instance |
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270 const TypeAryPtr *isa_aryptr() const; // Returns NULL if not AryPtr |
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271 const TypeAryPtr *is_aryptr() const; // Array oop |
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272 |
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273 const TypeMetadataPtr *isa_metadataptr() const; // Returns NULL if not oop ptr type |
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274 const TypeMetadataPtr *is_metadataptr() const; // Java-style GC'd pointer |
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275 const TypeKlassPtr *isa_klassptr() const; // Returns NULL if not KlassPtr |
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276 const TypeKlassPtr *is_klassptr() const; // assert if not KlassPtr |
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277 |
| 0 | 278 virtual bool is_finite() const; // Has a finite value |
| 279 virtual bool is_nan() const; // Is not a number (NaN) | |
| 280 | |
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281 // Returns this ptr type or the equivalent ptr type for this compressed pointer. |
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282 const TypePtr* make_ptr() const; |
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283 |
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284 // Returns this oopptr type or the equivalent oopptr type for this compressed pointer. |
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285 // Asserts if the underlying type is not an oopptr or narrowoop. |
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286 const TypeOopPtr* make_oopptr() const; |
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287 |
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288 // Returns this compressed pointer or the equivalent compressed version |
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289 // of this pointer type. |
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290 const TypeNarrowOop* make_narrowoop() const; |
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291 |
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292 // Returns this compressed klass pointer or the equivalent |
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293 // compressed version of this pointer type. |
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294 const TypeNarrowKlass* make_narrowklass() const; |
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295 |
| 0 | 296 // Special test for register pressure heuristic |
| 297 bool is_floatingpoint() const; // True if Float or Double base type | |
| 298 | |
| 299 // Do you have memory, directly or through a tuple? | |
| 300 bool has_memory( ) const; | |
| 301 | |
| 302 // TRUE if type is a singleton | |
| 303 virtual bool singleton(void) const; | |
| 304 | |
| 305 // TRUE if type is above the lattice centerline, and is therefore vacuous | |
| 306 virtual bool empty(void) const; | |
| 307 | |
| 308 // Return a hash for this type. The hash function is public so ConNode | |
| 309 // (constants) can hash on their constant, which is represented by a Type. | |
| 310 virtual int hash() const; | |
| 311 | |
| 312 // Map ideal registers (machine types) to ideal types | |
| 313 static const Type *mreg2type[]; | |
| 314 | |
| 315 // Printing, statistics | |
| 316 #ifndef PRODUCT | |
| 317 void dump_on(outputStream *st) const; | |
| 318 void dump() const { | |
| 319 dump_on(tty); | |
| 320 } | |
| 321 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 322 static void dump_stats(); | |
| 323 #endif | |
| 324 void typerr(const Type *t) const; // Mixing types error | |
| 325 | |
| 326 // Create basic type | |
| 327 static const Type* get_const_basic_type(BasicType type) { | |
| 328 assert((uint)type <= T_CONFLICT && _const_basic_type[type] != NULL, "bad type"); | |
| 329 return _const_basic_type[type]; | |
| 330 } | |
| 331 | |
| 332 // Mapping to the array element's basic type. | |
| 333 BasicType array_element_basic_type() const; | |
| 334 | |
| 335 // Create standard type for a ciType: | |
| 336 static const Type* get_const_type(ciType* type); | |
| 337 | |
| 338 // Create standard zero value: | |
| 339 static const Type* get_zero_type(BasicType type) { | |
| 340 assert((uint)type <= T_CONFLICT && _zero_type[type] != NULL, "bad type"); | |
| 341 return _zero_type[type]; | |
| 342 } | |
| 343 | |
| 344 // Report if this is a zero value (not top). | |
| 345 bool is_zero_type() const { | |
| 346 BasicType type = basic_type(); | |
| 347 if (type == T_VOID || type >= T_CONFLICT) | |
| 348 return false; | |
| 349 else | |
| 350 return (this == _zero_type[type]); | |
| 351 } | |
| 352 | |
| 353 // Convenience common pre-built types. | |
| 354 static const Type *ABIO; | |
| 355 static const Type *BOTTOM; | |
| 356 static const Type *CONTROL; | |
| 357 static const Type *DOUBLE; | |
| 358 static const Type *FLOAT; | |
| 359 static const Type *HALF; | |
| 360 static const Type *MEMORY; | |
| 361 static const Type *MULTI; | |
| 362 static const Type *RETURN_ADDRESS; | |
| 363 static const Type *TOP; | |
| 364 | |
| 365 // Mapping from compiler type to VM BasicType | |
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366 BasicType basic_type() const { return _type_info[_base].basic_type; } |
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367 int ideal_reg() const { return _type_info[_base].ideal_reg; } |
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368 const char* msg() const { return _type_info[_base].msg; } |
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369 bool isa_oop_ptr() const { return _type_info[_base].isa_oop; } |
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370 relocInfo::relocType reloc() const { return _type_info[_base].reloc; } |
| 0 | 371 |
| 372 // Mapping from CI type system to compiler type: | |
| 373 static const Type* get_typeflow_type(ciType* type); | |
| 374 | |
| 375 private: | |
| 376 // support arrays | |
| 377 static const BasicType _basic_type[]; | |
| 378 static const Type* _zero_type[T_CONFLICT+1]; | |
| 379 static const Type* _const_basic_type[T_CONFLICT+1]; | |
| 380 }; | |
| 381 | |
| 382 //------------------------------TypeF------------------------------------------ | |
| 383 // Class of Float-Constant Types. | |
| 384 class TypeF : public Type { | |
| 385 TypeF( float f ) : Type(FloatCon), _f(f) {}; | |
| 386 public: | |
| 387 virtual bool eq( const Type *t ) const; | |
| 388 virtual int hash() const; // Type specific hashing | |
| 389 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 390 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 391 public: | |
| 392 const float _f; // Float constant | |
| 393 | |
| 394 static const TypeF *make(float f); | |
| 395 | |
| 396 virtual bool is_finite() const; // Has a finite value | |
| 397 virtual bool is_nan() const; // Is not a number (NaN) | |
| 398 | |
| 399 virtual const Type *xmeet( const Type *t ) const; | |
| 400 virtual const Type *xdual() const; // Compute dual right now. | |
| 401 // Convenience common pre-built types. | |
| 402 static const TypeF *ZERO; // positive zero only | |
| 403 static const TypeF *ONE; | |
| 404 #ifndef PRODUCT | |
| 405 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 406 #endif | |
| 407 }; | |
| 408 | |
| 409 //------------------------------TypeD------------------------------------------ | |
| 410 // Class of Double-Constant Types. | |
| 411 class TypeD : public Type { | |
| 412 TypeD( double d ) : Type(DoubleCon), _d(d) {}; | |
| 413 public: | |
| 414 virtual bool eq( const Type *t ) const; | |
| 415 virtual int hash() const; // Type specific hashing | |
| 416 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 417 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 418 public: | |
| 419 const double _d; // Double constant | |
| 420 | |
| 421 static const TypeD *make(double d); | |
| 422 | |
| 423 virtual bool is_finite() const; // Has a finite value | |
| 424 virtual bool is_nan() const; // Is not a number (NaN) | |
| 425 | |
| 426 virtual const Type *xmeet( const Type *t ) const; | |
| 427 virtual const Type *xdual() const; // Compute dual right now. | |
| 428 // Convenience common pre-built types. | |
| 429 static const TypeD *ZERO; // positive zero only | |
| 430 static const TypeD *ONE; | |
| 431 #ifndef PRODUCT | |
| 432 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 433 #endif | |
| 434 }; | |
| 435 | |
| 436 //------------------------------TypeInt---------------------------------------- | |
| 437 // Class of integer ranges, the set of integers between a lower bound and an | |
| 438 // upper bound, inclusive. | |
| 439 class TypeInt : public Type { | |
| 440 TypeInt( jint lo, jint hi, int w ); | |
| 441 public: | |
| 442 virtual bool eq( const Type *t ) const; | |
| 443 virtual int hash() const; // Type specific hashing | |
| 444 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 445 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 446 public: | |
| 447 const jint _lo, _hi; // Lower bound, upper bound | |
| 448 const short _widen; // Limit on times we widen this sucker | |
| 449 | |
| 450 static const TypeInt *make(jint lo); | |
| 451 // must always specify w | |
| 452 static const TypeInt *make(jint lo, jint hi, int w); | |
| 453 | |
| 454 // Check for single integer | |
| 455 int is_con() const { return _lo==_hi; } | |
| 456 bool is_con(int i) const { return is_con() && _lo == i; } | |
| 457 jint get_con() const { assert( is_con(), "" ); return _lo; } | |
| 458 | |
| 459 virtual bool is_finite() const; // Has a finite value | |
| 460 | |
| 461 virtual const Type *xmeet( const Type *t ) const; | |
| 462 virtual const Type *xdual() const; // Compute dual right now. | |
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463 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
| 0 | 464 virtual const Type *narrow( const Type *t ) const; |
| 465 // Do not kill _widen bits. | |
| 466 virtual const Type *filter( const Type *kills ) const; | |
| 467 // Convenience common pre-built types. | |
| 468 static const TypeInt *MINUS_1; | |
| 469 static const TypeInt *ZERO; | |
| 470 static const TypeInt *ONE; | |
| 471 static const TypeInt *BOOL; | |
| 472 static const TypeInt *CC; | |
| 473 static const TypeInt *CC_LT; // [-1] == MINUS_1 | |
| 474 static const TypeInt *CC_GT; // [1] == ONE | |
| 475 static const TypeInt *CC_EQ; // [0] == ZERO | |
| 476 static const TypeInt *CC_LE; // [-1,0] | |
| 477 static const TypeInt *CC_GE; // [0,1] == BOOL (!) | |
| 478 static const TypeInt *BYTE; | |
| 624 | 479 static const TypeInt *UBYTE; |
| 0 | 480 static const TypeInt *CHAR; |
| 481 static const TypeInt *SHORT; | |
| 482 static const TypeInt *POS; | |
| 483 static const TypeInt *POS1; | |
| 484 static const TypeInt *INT; | |
| 485 static const TypeInt *SYMINT; // symmetric range [-max_jint..max_jint] | |
| 486 #ifndef PRODUCT | |
| 487 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 488 #endif | |
| 489 }; | |
| 490 | |
| 491 | |
| 492 //------------------------------TypeLong--------------------------------------- | |
| 493 // Class of long integer ranges, the set of integers between a lower bound and | |
| 494 // an upper bound, inclusive. | |
| 495 class TypeLong : public Type { | |
| 496 TypeLong( jlong lo, jlong hi, int w ); | |
| 497 public: | |
| 498 virtual bool eq( const Type *t ) const; | |
| 499 virtual int hash() const; // Type specific hashing | |
| 500 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 501 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 502 public: | |
| 503 const jlong _lo, _hi; // Lower bound, upper bound | |
| 504 const short _widen; // Limit on times we widen this sucker | |
| 505 | |
| 506 static const TypeLong *make(jlong lo); | |
| 507 // must always specify w | |
| 508 static const TypeLong *make(jlong lo, jlong hi, int w); | |
| 509 | |
| 510 // Check for single integer | |
| 511 int is_con() const { return _lo==_hi; } | |
| 145 | 512 bool is_con(int i) const { return is_con() && _lo == i; } |
| 0 | 513 jlong get_con() const { assert( is_con(), "" ); return _lo; } |
| 514 | |
| 515 virtual bool is_finite() const; // Has a finite value | |
| 516 | |
| 517 virtual const Type *xmeet( const Type *t ) const; | |
| 518 virtual const Type *xdual() const; // Compute dual right now. | |
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519 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
| 0 | 520 virtual const Type *narrow( const Type *t ) const; |
| 521 // Do not kill _widen bits. | |
| 522 virtual const Type *filter( const Type *kills ) const; | |
| 523 // Convenience common pre-built types. | |
| 524 static const TypeLong *MINUS_1; | |
| 525 static const TypeLong *ZERO; | |
| 526 static const TypeLong *ONE; | |
| 527 static const TypeLong *POS; | |
| 528 static const TypeLong *LONG; | |
| 529 static const TypeLong *INT; // 32-bit subrange [min_jint..max_jint] | |
| 530 static const TypeLong *UINT; // 32-bit unsigned [0..max_juint] | |
| 531 #ifndef PRODUCT | |
| 532 virtual void dump2( Dict &d, uint, outputStream *st ) const;// Specialized per-Type dumping | |
| 533 #endif | |
| 534 }; | |
| 535 | |
| 536 //------------------------------TypeTuple-------------------------------------- | |
| 537 // Class of Tuple Types, essentially type collections for function signatures | |
| 538 // and class layouts. It happens to also be a fast cache for the HotSpot | |
| 539 // signature types. | |
| 540 class TypeTuple : public Type { | |
| 541 TypeTuple( uint cnt, const Type **fields ) : Type(Tuple), _cnt(cnt), _fields(fields) { } | |
| 542 public: | |
| 543 virtual bool eq( const Type *t ) const; | |
| 544 virtual int hash() const; // Type specific hashing | |
| 545 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 546 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 547 | |
| 548 public: | |
| 549 const uint _cnt; // Count of fields | |
| 550 const Type ** const _fields; // Array of field types | |
| 551 | |
| 552 // Accessors: | |
| 553 uint cnt() const { return _cnt; } | |
| 554 const Type* field_at(uint i) const { | |
| 555 assert(i < _cnt, "oob"); | |
| 556 return _fields[i]; | |
| 557 } | |
| 558 void set_field_at(uint i, const Type* t) { | |
| 559 assert(i < _cnt, "oob"); | |
| 560 _fields[i] = t; | |
| 561 } | |
| 562 | |
| 563 static const TypeTuple *make( uint cnt, const Type **fields ); | |
| 564 static const TypeTuple *make_range(ciSignature *sig); | |
| 565 static const TypeTuple *make_domain(ciInstanceKlass* recv, ciSignature *sig); | |
| 566 | |
| 567 // Subroutine call type with space allocated for argument types | |
| 568 static const Type **fields( uint arg_cnt ); | |
| 569 | |
| 570 virtual const Type *xmeet( const Type *t ) const; | |
| 571 virtual const Type *xdual() const; // Compute dual right now. | |
| 572 // Convenience common pre-built types. | |
| 573 static const TypeTuple *IFBOTH; | |
| 574 static const TypeTuple *IFFALSE; | |
| 575 static const TypeTuple *IFTRUE; | |
| 576 static const TypeTuple *IFNEITHER; | |
| 577 static const TypeTuple *LOOPBODY; | |
| 578 static const TypeTuple *MEMBAR; | |
| 579 static const TypeTuple *STORECONDITIONAL; | |
| 580 static const TypeTuple *START_I2C; | |
| 581 static const TypeTuple *INT_PAIR; | |
| 582 static const TypeTuple *LONG_PAIR; | |
| 583 #ifndef PRODUCT | |
| 584 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
| 585 #endif | |
| 586 }; | |
| 587 | |
| 588 //------------------------------TypeAry---------------------------------------- | |
| 589 // Class of Array Types | |
| 590 class TypeAry : public Type { | |
| 591 TypeAry( const Type *elem, const TypeInt *size) : Type(Array), | |
| 592 _elem(elem), _size(size) {} | |
| 593 public: | |
| 594 virtual bool eq( const Type *t ) const; | |
| 595 virtual int hash() const; // Type specific hashing | |
| 596 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 597 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 598 | |
| 599 private: | |
| 600 const Type *_elem; // Element type of array | |
| 601 const TypeInt *_size; // Elements in array | |
| 602 friend class TypeAryPtr; | |
| 603 | |
| 604 public: | |
| 605 static const TypeAry *make( const Type *elem, const TypeInt *size); | |
| 606 | |
| 607 virtual const Type *xmeet( const Type *t ) const; | |
| 608 virtual const Type *xdual() const; // Compute dual right now. | |
| 609 bool ary_must_be_exact() const; // true if arrays of such are never generic | |
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610 #ifdef ASSERT |
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611 // One type is interface, the other is oop |
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612 virtual bool interface_vs_oop(const Type *t) const; |
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613 #endif |
| 0 | 614 #ifndef PRODUCT |
| 615 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
| 616 #endif | |
| 617 }; | |
| 618 | |
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619 //------------------------------TypeVect--------------------------------------- |
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620 // Class of Vector Types |
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621 class TypeVect : public Type { |
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622 const Type* _elem; // Vector's element type |
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623 const uint _length; // Elements in vector (power of 2) |
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624 |
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625 protected: |
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626 TypeVect(TYPES t, const Type* elem, uint length) : Type(t), |
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627 _elem(elem), _length(length) {} |
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628 |
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629 public: |
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630 const Type* element_type() const { return _elem; } |
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631 BasicType element_basic_type() const { return _elem->array_element_basic_type(); } |
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632 uint length() const { return _length; } |
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633 uint length_in_bytes() const { |
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634 return _length * type2aelembytes(element_basic_type()); |
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635 } |
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636 |
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637 virtual bool eq(const Type *t) const; |
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638 virtual int hash() const; // Type specific hashing |
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639 virtual bool singleton(void) const; // TRUE if type is a singleton |
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640 virtual bool empty(void) const; // TRUE if type is vacuous |
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641 |
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642 static const TypeVect *make(const BasicType elem_bt, uint length) { |
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643 // Use bottom primitive type. |
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644 return make(get_const_basic_type(elem_bt), length); |
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645 } |
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646 // Used directly by Replicate nodes to construct singleton vector. |
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647 static const TypeVect *make(const Type* elem, uint length); |
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648 |
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649 virtual const Type *xmeet( const Type *t) const; |
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650 virtual const Type *xdual() const; // Compute dual right now. |
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651 |
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652 static const TypeVect *VECTS; |
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653 static const TypeVect *VECTD; |
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654 static const TypeVect *VECTX; |
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655 static const TypeVect *VECTY; |
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656 |
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657 #ifndef PRODUCT |
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658 virtual void dump2(Dict &d, uint, outputStream *st) const; // Specialized per-Type dumping |
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659 #endif |
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660 }; |
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661 |
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662 class TypeVectS : public TypeVect { |
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663 friend class TypeVect; |
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664 TypeVectS(const Type* elem, uint length) : TypeVect(VectorS, elem, length) {} |
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665 }; |
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666 |
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667 class TypeVectD : public TypeVect { |
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668 friend class TypeVect; |
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669 TypeVectD(const Type* elem, uint length) : TypeVect(VectorD, elem, length) {} |
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670 }; |
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671 |
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672 class TypeVectX : public TypeVect { |
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673 friend class TypeVect; |
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674 TypeVectX(const Type* elem, uint length) : TypeVect(VectorX, elem, length) {} |
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675 }; |
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676 |
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677 class TypeVectY : public TypeVect { |
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678 friend class TypeVect; |
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679 TypeVectY(const Type* elem, uint length) : TypeVect(VectorY, elem, length) {} |
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680 }; |
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681 |
| 0 | 682 //------------------------------TypePtr---------------------------------------- |
| 683 // Class of machine Pointer Types: raw data, instances or arrays. | |
| 684 // If the _base enum is AnyPtr, then this refers to all of the above. | |
| 685 // Otherwise the _base will indicate which subset of pointers is affected, | |
| 686 // and the class will be inherited from. | |
| 687 class TypePtr : public Type { | |
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688 friend class TypeNarrowPtr; |
| 0 | 689 public: |
| 690 enum PTR { TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, lastPTR }; | |
| 691 protected: | |
| 692 TypePtr( TYPES t, PTR ptr, int offset ) : Type(t), _ptr(ptr), _offset(offset) {} | |
| 693 virtual bool eq( const Type *t ) const; | |
| 694 virtual int hash() const; // Type specific hashing | |
| 695 static const PTR ptr_meet[lastPTR][lastPTR]; | |
| 696 static const PTR ptr_dual[lastPTR]; | |
| 697 static const char * const ptr_msg[lastPTR]; | |
| 698 | |
| 699 public: | |
| 700 const int _offset; // Offset into oop, with TOP & BOT | |
| 701 const PTR _ptr; // Pointer equivalence class | |
| 702 | |
| 703 const int offset() const { return _offset; } | |
| 704 const PTR ptr() const { return _ptr; } | |
| 705 | |
| 706 static const TypePtr *make( TYPES t, PTR ptr, int offset ); | |
| 707 | |
| 708 // Return a 'ptr' version of this type | |
| 709 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 710 | |
| 711 virtual intptr_t get_con() const; | |
| 712 | |
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713 int xadd_offset( intptr_t offset ) const; |
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714 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 0 | 715 |
| 716 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 717 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 718 virtual const Type *xmeet( const Type *t ) const; | |
| 719 int meet_offset( int offset ) const; | |
| 720 int dual_offset( ) const; | |
| 721 virtual const Type *xdual() const; // Compute dual right now. | |
| 722 | |
| 723 // meet, dual and join over pointer equivalence sets | |
| 724 PTR meet_ptr( const PTR in_ptr ) const { return ptr_meet[in_ptr][ptr()]; } | |
| 725 PTR dual_ptr() const { return ptr_dual[ptr()]; } | |
| 726 | |
| 727 // This is textually confusing unless one recalls that | |
| 728 // join(t) == dual()->meet(t->dual())->dual(). | |
| 729 PTR join_ptr( const PTR in_ptr ) const { | |
| 730 return ptr_dual[ ptr_meet[ ptr_dual[in_ptr] ] [ dual_ptr() ] ]; | |
| 731 } | |
| 732 | |
| 733 // Tests for relation to centerline of type lattice: | |
| 734 static bool above_centerline(PTR ptr) { return (ptr <= AnyNull); } | |
| 735 static bool below_centerline(PTR ptr) { return (ptr >= NotNull); } | |
| 736 // Convenience common pre-built types. | |
| 737 static const TypePtr *NULL_PTR; | |
| 738 static const TypePtr *NOTNULL; | |
| 739 static const TypePtr *BOTTOM; | |
| 740 #ifndef PRODUCT | |
| 741 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 742 #endif | |
| 743 }; | |
| 744 | |
| 745 //------------------------------TypeRawPtr------------------------------------- | |
| 746 // Class of raw pointers, pointers to things other than Oops. Examples | |
| 747 // include the stack pointer, top of heap, card-marking area, handles, etc. | |
| 748 class TypeRawPtr : public TypePtr { | |
| 749 protected: | |
| 750 TypeRawPtr( PTR ptr, address bits ) : TypePtr(RawPtr,ptr,0), _bits(bits){} | |
| 751 public: | |
| 752 virtual bool eq( const Type *t ) const; | |
| 753 virtual int hash() const; // Type specific hashing | |
| 754 | |
| 755 const address _bits; // Constant value, if applicable | |
| 756 | |
| 757 static const TypeRawPtr *make( PTR ptr ); | |
| 758 static const TypeRawPtr *make( address bits ); | |
| 759 | |
| 760 // Return a 'ptr' version of this type | |
| 761 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 762 | |
| 763 virtual intptr_t get_con() const; | |
| 764 | |
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765 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 0 | 766 |
| 767 virtual const Type *xmeet( const Type *t ) const; | |
| 768 virtual const Type *xdual() const; // Compute dual right now. | |
| 769 // Convenience common pre-built types. | |
| 770 static const TypeRawPtr *BOTTOM; | |
| 771 static const TypeRawPtr *NOTNULL; | |
| 772 #ifndef PRODUCT | |
| 773 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 774 #endif | |
| 775 }; | |
| 776 | |
| 777 //------------------------------TypeOopPtr------------------------------------- | |
| 778 // Some kind of oop (Java pointer), either klass or instance or array. | |
| 779 class TypeOopPtr : public TypePtr { | |
| 780 protected: | |
| 163 | 781 TypeOopPtr( TYPES t, PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id ); |
| 0 | 782 public: |
| 783 virtual bool eq( const Type *t ) const; | |
| 784 virtual int hash() const; // Type specific hashing | |
| 785 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 786 enum { | |
| 223 | 787 InstanceTop = -1, // undefined instance |
| 788 InstanceBot = 0 // any possible instance | |
| 0 | 789 }; |
| 790 protected: | |
| 791 | |
| 792 // Oop is NULL, unless this is a constant oop. | |
| 793 ciObject* _const_oop; // Constant oop | |
| 794 // If _klass is NULL, then so is _sig. This is an unloaded klass. | |
| 795 ciKlass* _klass; // Klass object | |
| 796 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) | |
| 797 bool _klass_is_exact; | |
| 163 | 798 bool _is_ptr_to_narrowoop; |
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799 bool _is_ptr_to_narrowklass; |
| 10278 | 800 bool _is_ptr_to_boxed_value; |
| 0 | 801 |
| 223 | 802 // If not InstanceTop or InstanceBot, indicates that this is |
| 803 // a particular instance of this type which is distinct. | |
| 804 // This is the the node index of the allocation node creating this instance. | |
| 805 int _instance_id; | |
| 0 | 806 |
| 807 static const TypeOopPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); | |
| 808 | |
| 223 | 809 int dual_instance_id() const; |
| 810 int meet_instance_id(int uid) const; | |
| 0 | 811 |
| 812 public: | |
| 813 // Creates a type given a klass. Correctly handles multi-dimensional arrays | |
| 814 // Respects UseUniqueSubclasses. | |
| 815 // If the klass is final, the resulting type will be exact. | |
| 816 static const TypeOopPtr* make_from_klass(ciKlass* klass) { | |
| 817 return make_from_klass_common(klass, true, false); | |
| 818 } | |
| 819 // Same as before, but will produce an exact type, even if | |
| 820 // the klass is not final, as long as it has exactly one implementation. | |
| 821 static const TypeOopPtr* make_from_klass_unique(ciKlass* klass) { | |
| 822 return make_from_klass_common(klass, true, true); | |
| 823 } | |
| 824 // Same as before, but does not respects UseUniqueSubclasses. | |
| 825 // Use this only for creating array element types. | |
| 826 static const TypeOopPtr* make_from_klass_raw(ciKlass* klass) { | |
| 827 return make_from_klass_common(klass, false, false); | |
| 828 } | |
| 829 // Creates a singleton type given an object. | |
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830 // If the object cannot be rendered as a constant, |
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831 // may return a non-singleton type. |
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832 // If require_constant, produce a NULL if a singleton is not possible. |
| 10278 | 833 static const TypeOopPtr* make_from_constant(ciObject* o, |
| 834 bool require_constant = false, | |
| 835 bool not_null_elements = false); | |
| 0 | 836 |
| 837 // Make a generic (unclassed) pointer to an oop. | |
| 992 | 838 static const TypeOopPtr* make(PTR ptr, int offset, int instance_id); |
| 0 | 839 |
| 840 ciObject* const_oop() const { return _const_oop; } | |
| 841 virtual ciKlass* klass() const { return _klass; } | |
| 842 bool klass_is_exact() const { return _klass_is_exact; } | |
| 163 | 843 |
| 844 // Returns true if this pointer points at memory which contains a | |
| 845 // compressed oop references. | |
| 846 bool is_ptr_to_narrowoop_nv() const { return _is_ptr_to_narrowoop; } | |
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847 bool is_ptr_to_narrowklass_nv() const { return _is_ptr_to_narrowklass; } |
| 10278 | 848 bool is_ptr_to_boxed_value() const { return _is_ptr_to_boxed_value; } |
| 223 | 849 bool is_known_instance() const { return _instance_id > 0; } |
| 850 int instance_id() const { return _instance_id; } | |
| 851 bool is_known_instance_field() const { return is_known_instance() && _offset >= 0; } | |
| 0 | 852 |
| 853 virtual intptr_t get_con() const; | |
| 854 | |
| 855 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 856 | |
| 857 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 858 | |
| 223 | 859 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
| 0 | 860 |
| 861 // corresponding pointer to klass, for a given instance | |
| 862 const TypeKlassPtr* as_klass_type() const; | |
| 863 | |
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864 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 0 | 865 |
| 866 virtual const Type *xmeet( const Type *t ) const; | |
| 867 virtual const Type *xdual() const; // Compute dual right now. | |
| 868 | |
| 869 // Do not allow interface-vs.-noninterface joins to collapse to top. | |
| 870 virtual const Type *filter( const Type *kills ) const; | |
| 871 | |
| 872 // Convenience common pre-built type. | |
| 873 static const TypeOopPtr *BOTTOM; | |
| 874 #ifndef PRODUCT | |
| 875 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 876 #endif | |
| 877 }; | |
| 878 | |
| 879 //------------------------------TypeInstPtr------------------------------------ | |
| 880 // Class of Java object pointers, pointing either to non-array Java instances | |
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881 // or to a Klass* (including array klasses). |
| 0 | 882 class TypeInstPtr : public TypeOopPtr { |
| 883 TypeInstPtr( PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id ); | |
| 884 virtual bool eq( const Type *t ) const; | |
| 885 virtual int hash() const; // Type specific hashing | |
| 886 | |
| 887 ciSymbol* _name; // class name | |
| 888 | |
| 889 public: | |
| 890 ciSymbol* name() const { return _name; } | |
| 891 | |
| 892 bool is_loaded() const { return _klass->is_loaded(); } | |
| 893 | |
| 894 // Make a pointer to a constant oop. | |
| 895 static const TypeInstPtr *make(ciObject* o) { | |
| 896 return make(TypePtr::Constant, o->klass(), true, o, 0); | |
| 897 } | |
| 898 // Make a pointer to a constant oop with offset. | |
| 899 static const TypeInstPtr *make(ciObject* o, int offset) { | |
| 900 return make(TypePtr::Constant, o->klass(), true, o, offset); | |
| 901 } | |
| 902 | |
| 903 // Make a pointer to some value of type klass. | |
| 904 static const TypeInstPtr *make(PTR ptr, ciKlass* klass) { | |
| 905 return make(ptr, klass, false, NULL, 0); | |
| 906 } | |
| 907 | |
| 908 // Make a pointer to some non-polymorphic value of exactly type klass. | |
| 909 static const TypeInstPtr *make_exact(PTR ptr, ciKlass* klass) { | |
| 910 return make(ptr, klass, true, NULL, 0); | |
| 911 } | |
| 912 | |
| 913 // Make a pointer to some value of type klass with offset. | |
| 914 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, int offset) { | |
| 915 return make(ptr, klass, false, NULL, offset); | |
| 916 } | |
| 917 | |
| 918 // Make a pointer to an oop. | |
| 223 | 919 static const TypeInstPtr *make(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id = InstanceBot ); |
| 0 | 920 |
| 10278 | 921 /** Create constant type for a constant boxed value */ |
| 922 const Type* get_const_boxed_value() const; | |
| 923 | |
| 0 | 924 // If this is a java.lang.Class constant, return the type for it or NULL. |
| 925 // Pass to Type::get_const_type to turn it to a type, which will usually | |
| 926 // be a TypeInstPtr, but may also be a TypeInt::INT for int.class, etc. | |
| 927 ciType* java_mirror_type() const; | |
| 928 | |
| 929 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 930 | |
| 931 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 932 | |
| 223 | 933 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
| 0 | 934 |
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935 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 0 | 936 |
| 937 virtual const Type *xmeet( const Type *t ) const; | |
| 938 virtual const TypeInstPtr *xmeet_unloaded( const TypeInstPtr *t ) const; | |
| 939 virtual const Type *xdual() const; // Compute dual right now. | |
| 940 | |
| 941 // Convenience common pre-built types. | |
| 942 static const TypeInstPtr *NOTNULL; | |
| 943 static const TypeInstPtr *BOTTOM; | |
| 944 static const TypeInstPtr *MIRROR; | |
| 945 static const TypeInstPtr *MARK; | |
| 946 static const TypeInstPtr *KLASS; | |
| 947 #ifndef PRODUCT | |
| 948 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 949 #endif | |
| 950 }; | |
| 951 | |
| 952 //------------------------------TypeAryPtr------------------------------------- | |
| 953 // Class of Java array pointers | |
| 954 class TypeAryPtr : public TypeOopPtr { | |
| 10278 | 955 TypeAryPtr( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, |
| 956 int offset, int instance_id, bool is_autobox_cache ) | |
| 957 : TypeOopPtr(AryPtr,ptr,k,xk,o,offset, instance_id), | |
| 958 _ary(ary), | |
| 959 _is_autobox_cache(is_autobox_cache) | |
| 960 { | |
| 1761 | 961 #ifdef ASSERT |
| 962 if (k != NULL) { | |
| 963 // Verify that specified klass and TypeAryPtr::klass() follow the same rules. | |
| 964 ciKlass* ck = compute_klass(true); | |
| 1792 | 965 if (k != ck) { |
| 1761 | 966 this->dump(); tty->cr(); |
| 967 tty->print(" k: "); | |
| 968 k->print(); tty->cr(); | |
| 969 tty->print("ck: "); | |
| 970 if (ck != NULL) ck->print(); | |
| 971 else tty->print("<NULL>"); | |
| 972 tty->cr(); | |
| 973 assert(false, "unexpected TypeAryPtr::_klass"); | |
| 974 } | |
| 975 } | |
| 976 #endif | |
| 977 } | |
| 0 | 978 virtual bool eq( const Type *t ) const; |
| 979 virtual int hash() const; // Type specific hashing | |
| 980 const TypeAry *_ary; // Array we point into | |
| 10278 | 981 const bool _is_autobox_cache; |
| 0 | 982 |
| 1761 | 983 ciKlass* compute_klass(DEBUG_ONLY(bool verify = false)) const; |
| 984 | |
| 0 | 985 public: |
| 986 // Accessors | |
| 987 ciKlass* klass() const; | |
| 988 const TypeAry* ary() const { return _ary; } | |
| 989 const Type* elem() const { return _ary->_elem; } | |
| 990 const TypeInt* size() const { return _ary->_size; } | |
| 991 | |
| 10278 | 992 bool is_autobox_cache() const { return _is_autobox_cache; } |
| 993 | |
| 223 | 994 static const TypeAryPtr *make( PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id = InstanceBot); |
| 0 | 995 // Constant pointer to array |
| 10278 | 996 static const TypeAryPtr *make( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id = InstanceBot, bool is_autobox_cache = false); |
| 0 | 997 |
| 998 // Return a 'ptr' version of this type | |
| 999 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 1000 | |
| 1001 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 1002 | |
| 223 | 1003 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
| 0 | 1004 |
| 1005 virtual const TypeAryPtr* cast_to_size(const TypeInt* size) const; | |
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1006 virtual const TypeInt* narrow_size_type(const TypeInt* size) const; |
| 0 | 1007 |
| 1008 virtual bool empty(void) const; // TRUE if type is vacuous | |
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1009 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 0 | 1010 |
| 1011 virtual const Type *xmeet( const Type *t ) const; | |
| 1012 virtual const Type *xdual() const; // Compute dual right now. | |
| 1013 | |
| 1014 // Convenience common pre-built types. | |
| 1015 static const TypeAryPtr *RANGE; | |
| 1016 static const TypeAryPtr *OOPS; | |
| 163 | 1017 static const TypeAryPtr *NARROWOOPS; |
| 0 | 1018 static const TypeAryPtr *BYTES; |
| 1019 static const TypeAryPtr *SHORTS; | |
| 1020 static const TypeAryPtr *CHARS; | |
| 1021 static const TypeAryPtr *INTS; | |
| 1022 static const TypeAryPtr *LONGS; | |
| 1023 static const TypeAryPtr *FLOATS; | |
| 1024 static const TypeAryPtr *DOUBLES; | |
| 1025 // selects one of the above: | |
| 1026 static const TypeAryPtr *get_array_body_type(BasicType elem) { | |
| 1027 assert((uint)elem <= T_CONFLICT && _array_body_type[elem] != NULL, "bad elem type"); | |
| 1028 return _array_body_type[elem]; | |
| 1029 } | |
| 1030 static const TypeAryPtr *_array_body_type[T_CONFLICT+1]; | |
| 1031 // sharpen the type of an int which is used as an array size | |
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1032 #ifdef ASSERT |
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1033 // One type is interface, the other is oop |
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1034 virtual bool interface_vs_oop(const Type *t) const; |
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1035 #endif |
| 0 | 1036 #ifndef PRODUCT |
| 1037 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 1038 #endif | |
| 1039 }; | |
| 1040 | |
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1041 //------------------------------TypeMetadataPtr------------------------------------- |
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1042 // Some kind of metadata, either Method*, MethodData* or CPCacheOop |
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1043 class TypeMetadataPtr : public TypePtr { |
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1044 protected: |
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1045 TypeMetadataPtr(PTR ptr, ciMetadata* metadata, int offset); |
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1046 public: |
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1047 virtual bool eq( const Type *t ) const; |
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1048 virtual int hash() const; // Type specific hashing |
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1049 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1050 |
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1051 private: |
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1052 ciMetadata* _metadata; |
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1053 |
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1054 public: |
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1055 static const TypeMetadataPtr* make(PTR ptr, ciMetadata* m, int offset); |
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1056 |
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1057 static const TypeMetadataPtr* make(ciMethod* m); |
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1058 static const TypeMetadataPtr* make(ciMethodData* m); |
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1059 |
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1060 ciMetadata* metadata() const { return _metadata; } |
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1061 |
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1062 virtual const Type *cast_to_ptr_type(PTR ptr) const; |
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1063 |
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1064 virtual const TypePtr *add_offset( intptr_t offset ) const; |
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1065 |
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1066 virtual const Type *xmeet( const Type *t ) const; |
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1067 virtual const Type *xdual() const; // Compute dual right now. |
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1068 |
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1069 virtual intptr_t get_con() const; |
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1070 |
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1071 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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1072 virtual const Type *filter( const Type *kills ) const; |
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1073 |
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1074 // Convenience common pre-built types. |
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1075 static const TypeMetadataPtr *BOTTOM; |
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1076 |
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1077 #ifndef PRODUCT |
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1078 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1079 #endif |
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1080 }; |
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1081 |
| 0 | 1082 //------------------------------TypeKlassPtr----------------------------------- |
| 1083 // Class of Java Klass pointers | |
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1084 class TypeKlassPtr : public TypePtr { |
| 0 | 1085 TypeKlassPtr( PTR ptr, ciKlass* klass, int offset ); |
| 1086 | |
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1087 public: |
| 0 | 1088 virtual bool eq( const Type *t ) const; |
| 1089 virtual int hash() const; // Type specific hashing | |
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1090 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1091 private: |
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1092 |
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1093 static const TypeKlassPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); |
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1094 |
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1095 ciKlass* _klass; |
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1096 |
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1097 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) |
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1098 bool _klass_is_exact; |
| 0 | 1099 |
| 1100 public: | |
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1101 ciSymbol* name() const { return klass()->name(); } |
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1102 |
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1103 ciKlass* klass() const { return _klass; } |
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1104 bool klass_is_exact() const { return _klass_is_exact; } |
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1105 |
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1106 bool is_loaded() const { return klass()->is_loaded(); } |
| 0 | 1107 |
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1108 // Creates a type given a klass. Correctly handles multi-dimensional arrays |
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1109 // Respects UseUniqueSubclasses. |
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1110 // If the klass is final, the resulting type will be exact. |
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1111 static const TypeKlassPtr* make_from_klass(ciKlass* klass) { |
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1112 return make_from_klass_common(klass, true, false); |
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1113 } |
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1114 // Same as before, but will produce an exact type, even if |
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1115 // the klass is not final, as long as it has exactly one implementation. |
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1116 static const TypeKlassPtr* make_from_klass_unique(ciKlass* klass) { |
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1117 return make_from_klass_common(klass, true, true); |
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1118 } |
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1119 // Same as before, but does not respects UseUniqueSubclasses. |
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1120 // Use this only for creating array element types. |
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1121 static const TypeKlassPtr* make_from_klass_raw(ciKlass* klass) { |
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1122 return make_from_klass_common(klass, false, false); |
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1123 } |
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1124 |
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1125 // Make a generic (unclassed) pointer to metadata. |
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1126 static const TypeKlassPtr* make(PTR ptr, int offset); |
| 555 | 1127 |
| 0 | 1128 // ptr to klass 'k' |
| 1129 static const TypeKlassPtr *make( ciKlass* k ) { return make( TypePtr::Constant, k, 0); } | |
| 1130 // ptr to klass 'k' with offset | |
| 1131 static const TypeKlassPtr *make( ciKlass* k, int offset ) { return make( TypePtr::Constant, k, offset); } | |
| 1132 // ptr to klass 'k' or sub-klass | |
| 1133 static const TypeKlassPtr *make( PTR ptr, ciKlass* k, int offset); | |
| 1134 | |
| 1135 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 1136 | |
| 1137 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 1138 | |
| 1139 // corresponding pointer to instance, for a given class | |
| 1140 const TypeOopPtr* as_instance_type() const; | |
| 1141 | |
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1142 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 0 | 1143 virtual const Type *xmeet( const Type *t ) const; |
| 1144 virtual const Type *xdual() const; // Compute dual right now. | |
| 1145 | |
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1146 virtual intptr_t get_con() const; |
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1147 |
| 0 | 1148 // Convenience common pre-built types. |
| 1149 static const TypeKlassPtr* OBJECT; // Not-null object klass or below | |
| 1150 static const TypeKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same | |
| 1151 #ifndef PRODUCT | |
| 1152 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 1153 #endif | |
| 1154 }; | |
| 1155 | |
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1156 class TypeNarrowPtr : public Type { |
|
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1157 protected: |
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1158 const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR |
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1159 |
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1160 TypeNarrowPtr(TYPES t, const TypePtr* ptrtype): _ptrtype(ptrtype), |
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1161 Type(t) { |
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1162 assert(ptrtype->offset() == 0 || |
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1163 ptrtype->offset() == OffsetBot || |
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1164 ptrtype->offset() == OffsetTop, "no real offsets"); |
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1165 } |
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1166 |
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1167 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const = 0; |
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1168 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const = 0; |
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1169 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const = 0; |
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1170 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const = 0; |
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1171 public: |
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1172 virtual bool eq( const Type *t ) const; |
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1173 virtual int hash() const; // Type specific hashing |
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1174 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1175 |
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1176 virtual const Type *xmeet( const Type *t ) const; |
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1177 virtual const Type *xdual() const; // Compute dual right now. |
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1178 |
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1179 virtual intptr_t get_con() const; |
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1180 |
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1181 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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1182 virtual const Type *filter( const Type *kills ) const; |
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1183 |
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1184 virtual bool empty(void) const; // TRUE if type is vacuous |
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1185 |
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1186 // returns the equivalent ptr type for this compressed pointer |
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1187 const TypePtr *get_ptrtype() const { |
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1188 return _ptrtype; |
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1189 } |
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1190 |
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1191 #ifndef PRODUCT |
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1192 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1193 #endif |
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1194 }; |
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1195 |
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1196 //------------------------------TypeNarrowOop---------------------------------- |
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1197 // A compressed reference to some kind of Oop. This type wraps around |
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1198 // a preexisting TypeOopPtr and forwards most of it's operations to |
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1199 // the underlying type. It's only real purpose is to track the |
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1200 // oopness of the compressed oop value when we expose the conversion |
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1201 // between the normal and the compressed form. |
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1202 class TypeNarrowOop : public TypeNarrowPtr { |
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1203 protected: |
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1204 TypeNarrowOop( const TypePtr* ptrtype): TypeNarrowPtr(NarrowOop, ptrtype) { |
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1205 } |
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1206 |
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1207 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { |
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1208 return t->isa_narrowoop(); |
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1209 } |
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1210 |
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1211 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { |
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1212 return t->is_narrowoop(); |
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1213 } |
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1214 |
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1215 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { |
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1216 return new TypeNarrowOop(t); |
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1217 } |
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1218 |
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1219 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { |
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1220 return (const TypeNarrowPtr*)((new TypeNarrowOop(t))->hashcons()); |
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1221 } |
|
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1222 |
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1223 public: |
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1224 |
|
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1225 static const TypeNarrowOop *make( const TypePtr* type); |
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1226 |
|
2379
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1227 static const TypeNarrowOop* make_from_constant(ciObject* con, bool require_constant = false) { |
|
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1228 return make(TypeOopPtr::make_from_constant(con, require_constant)); |
|
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1229 } |
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1230 |
|
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1231 static const TypeNarrowOop *BOTTOM; |
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1232 static const TypeNarrowOop *NULL_PTR; |
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1233 |
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1234 #ifndef PRODUCT |
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1235 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
|
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1236 #endif |
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1237 }; |
|
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1238 |
|
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1239 //------------------------------TypeNarrowKlass---------------------------------- |
|
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1240 // A compressed reference to klass pointer. This type wraps around a |
|
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1241 // preexisting TypeKlassPtr and forwards most of it's operations to |
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1242 // the underlying type. |
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1243 class TypeNarrowKlass : public TypeNarrowPtr { |
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1244 protected: |
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1245 TypeNarrowKlass( const TypePtr* ptrtype): TypeNarrowPtr(NarrowKlass, ptrtype) { |
|
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1246 } |
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1247 |
|
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1248 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { |
|
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1249 return t->isa_narrowklass(); |
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1250 } |
|
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1251 |
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1252 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { |
|
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1253 return t->is_narrowklass(); |
|
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1254 } |
|
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1255 |
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1256 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { |
|
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1257 return new TypeNarrowKlass(t); |
|
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1258 } |
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1259 |
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1260 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { |
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1261 return (const TypeNarrowPtr*)((new TypeNarrowKlass(t))->hashcons()); |
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1262 } |
|
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1263 |
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1264 public: |
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1265 static const TypeNarrowKlass *make( const TypePtr* type); |
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1266 |
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1267 // static const TypeNarrowKlass *BOTTOM; |
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1268 static const TypeNarrowKlass *NULL_PTR; |
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1269 |
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1270 #ifndef PRODUCT |
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1271 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1272 #endif |
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1273 }; |
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1274 |
| 0 | 1275 //------------------------------TypeFunc--------------------------------------- |
| 1276 // Class of Array Types | |
| 1277 class TypeFunc : public Type { | |
| 1278 TypeFunc( const TypeTuple *domain, const TypeTuple *range ) : Type(Function), _domain(domain), _range(range) {} | |
| 1279 virtual bool eq( const Type *t ) const; | |
| 1280 virtual int hash() const; // Type specific hashing | |
| 1281 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 1282 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 1283 public: | |
| 1284 // Constants are shared among ADLC and VM | |
| 1285 enum { Control = AdlcVMDeps::Control, | |
| 1286 I_O = AdlcVMDeps::I_O, | |
| 1287 Memory = AdlcVMDeps::Memory, | |
| 1288 FramePtr = AdlcVMDeps::FramePtr, | |
| 1289 ReturnAdr = AdlcVMDeps::ReturnAdr, | |
| 1290 Parms = AdlcVMDeps::Parms | |
| 1291 }; | |
| 1292 | |
| 1293 const TypeTuple* const _domain; // Domain of inputs | |
| 1294 const TypeTuple* const _range; // Range of results | |
| 1295 | |
| 1296 // Accessors: | |
| 1297 const TypeTuple* domain() const { return _domain; } | |
| 1298 const TypeTuple* range() const { return _range; } | |
| 1299 | |
| 1300 static const TypeFunc *make(ciMethod* method); | |
| 1301 static const TypeFunc *make(ciSignature signature, const Type* extra); | |
| 1302 static const TypeFunc *make(const TypeTuple* domain, const TypeTuple* range); | |
| 1303 | |
| 1304 virtual const Type *xmeet( const Type *t ) const; | |
| 1305 virtual const Type *xdual() const; // Compute dual right now. | |
| 1306 | |
| 1307 BasicType return_type() const; | |
| 1308 | |
| 1309 #ifndef PRODUCT | |
| 1310 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 1311 #endif | |
| 1312 // Convenience common pre-built types. | |
| 1313 }; | |
| 1314 | |
| 1315 //------------------------------accessors-------------------------------------- | |
| 163 | 1316 inline bool Type::is_ptr_to_narrowoop() const { |
| 1317 #ifdef _LP64 | |
| 1318 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowoop_nv()); | |
| 1319 #else | |
| 1320 return false; | |
| 1321 #endif | |
| 1322 } | |
| 1323 | |
|
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1324 inline bool Type::is_ptr_to_narrowklass() const { |
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1325 #ifdef _LP64 |
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1326 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowklass_nv()); |
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1327 #else |
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1328 return false; |
|
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1329 #endif |
|
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1330 } |
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1331 |
| 0 | 1332 inline float Type::getf() const { |
| 1333 assert( _base == FloatCon, "Not a FloatCon" ); | |
| 1334 return ((TypeF*)this)->_f; | |
| 1335 } | |
| 1336 | |
| 1337 inline double Type::getd() const { | |
| 1338 assert( _base == DoubleCon, "Not a DoubleCon" ); | |
| 1339 return ((TypeD*)this)->_d; | |
| 1340 } | |
| 1341 | |
| 1342 inline const TypeInt *Type::is_int() const { | |
| 1343 assert( _base == Int, "Not an Int" ); | |
| 1344 return (TypeInt*)this; | |
| 1345 } | |
| 1346 | |
| 1347 inline const TypeInt *Type::isa_int() const { | |
| 1348 return ( _base == Int ? (TypeInt*)this : NULL); | |
| 1349 } | |
| 1350 | |
| 1351 inline const TypeLong *Type::is_long() const { | |
| 1352 assert( _base == Long, "Not a Long" ); | |
| 1353 return (TypeLong*)this; | |
| 1354 } | |
| 1355 | |
| 1356 inline const TypeLong *Type::isa_long() const { | |
| 1357 return ( _base == Long ? (TypeLong*)this : NULL); | |
| 1358 } | |
| 1359 | |
|
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1360 inline const TypeF *Type::isa_float() const { |
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1361 return ((_base == FloatTop || |
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1362 _base == FloatCon || |
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1363 _base == FloatBot) ? (TypeF*)this : NULL); |
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1364 } |
|
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1365 |
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|
1366 inline const TypeF *Type::is_float_constant() const { |
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1367 assert( _base == FloatCon, "Not a Float" ); |
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1368 return (TypeF*)this; |
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1369 } |
|
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1370 |
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1371 inline const TypeF *Type::isa_float_constant() const { |
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1372 return ( _base == FloatCon ? (TypeF*)this : NULL); |
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1373 } |
|
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1374 |
|
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|
1375 inline const TypeD *Type::isa_double() const { |
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1376 return ((_base == DoubleTop || |
|
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1377 _base == DoubleCon || |
|
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1378 _base == DoubleBot) ? (TypeD*)this : NULL); |
|
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1379 } |
|
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1380 |
|
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|
1381 inline const TypeD *Type::is_double_constant() const { |
|
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1382 assert( _base == DoubleCon, "Not a Double" ); |
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1383 return (TypeD*)this; |
|
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1384 } |
|
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1385 |
|
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|
1386 inline const TypeD *Type::isa_double_constant() const { |
|
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1387 return ( _base == DoubleCon ? (TypeD*)this : NULL); |
|
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1388 } |
|
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|
1389 |
| 0 | 1390 inline const TypeTuple *Type::is_tuple() const { |
| 1391 assert( _base == Tuple, "Not a Tuple" ); | |
| 1392 return (TypeTuple*)this; | |
| 1393 } | |
| 1394 | |
| 1395 inline const TypeAry *Type::is_ary() const { | |
| 1396 assert( _base == Array , "Not an Array" ); | |
| 1397 return (TypeAry*)this; | |
| 1398 } | |
| 1399 | |
|
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1400 inline const TypeVect *Type::is_vect() const { |
|
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1401 assert( _base >= VectorS && _base <= VectorY, "Not a Vector" ); |
|
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1402 return (TypeVect*)this; |
|
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|
1403 } |
|
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1404 |
|
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|
1405 inline const TypeVect *Type::isa_vect() const { |
|
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1406 return (_base >= VectorS && _base <= VectorY) ? (TypeVect*)this : NULL; |
|
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|
1407 } |
|
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|
1408 |
| 0 | 1409 inline const TypePtr *Type::is_ptr() const { |
| 1410 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
| 1411 assert(_base >= AnyPtr && _base <= KlassPtr, "Not a pointer"); | |
| 1412 return (TypePtr*)this; | |
| 1413 } | |
| 1414 | |
| 1415 inline const TypePtr *Type::isa_ptr() const { | |
| 1416 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
| 1417 return (_base >= AnyPtr && _base <= KlassPtr) ? (TypePtr*)this : NULL; | |
| 1418 } | |
| 1419 | |
| 1420 inline const TypeOopPtr *Type::is_oopptr() const { | |
| 1421 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
|
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1422 assert(_base >= OopPtr && _base <= AryPtr, "Not a Java pointer" ) ; |
| 0 | 1423 return (TypeOopPtr*)this; |
| 1424 } | |
| 1425 | |
| 1426 inline const TypeOopPtr *Type::isa_oopptr() const { | |
| 1427 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
|
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1428 return (_base >= OopPtr && _base <= AryPtr) ? (TypeOopPtr*)this : NULL; |
| 0 | 1429 } |
| 1430 | |
|
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|
1431 inline const TypeRawPtr *Type::isa_rawptr() const { |
|
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|
1432 return (_base == RawPtr) ? (TypeRawPtr*)this : NULL; |
|
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|
1433 } |
|
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|
1434 |
| 0 | 1435 inline const TypeRawPtr *Type::is_rawptr() const { |
| 1436 assert( _base == RawPtr, "Not a raw pointer" ); | |
| 1437 return (TypeRawPtr*)this; | |
| 1438 } | |
| 1439 | |
| 1440 inline const TypeInstPtr *Type::isa_instptr() const { | |
| 1441 return (_base == InstPtr) ? (TypeInstPtr*)this : NULL; | |
| 1442 } | |
| 1443 | |
| 1444 inline const TypeInstPtr *Type::is_instptr() const { | |
| 1445 assert( _base == InstPtr, "Not an object pointer" ); | |
| 1446 return (TypeInstPtr*)this; | |
| 1447 } | |
| 1448 | |
| 1449 inline const TypeAryPtr *Type::isa_aryptr() const { | |
| 1450 return (_base == AryPtr) ? (TypeAryPtr*)this : NULL; | |
| 1451 } | |
| 1452 | |
| 1453 inline const TypeAryPtr *Type::is_aryptr() const { | |
| 1454 assert( _base == AryPtr, "Not an array pointer" ); | |
| 1455 return (TypeAryPtr*)this; | |
| 1456 } | |
| 1457 | |
|
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1458 inline const TypeNarrowOop *Type::is_narrowoop() const { |
|
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|
1459 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
|
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|
1460 assert(_base == NarrowOop, "Not a narrow oop" ) ; |
|
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|
1461 return (TypeNarrowOop*)this; |
|
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|
1462 } |
|
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|
1463 |
|
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|
1464 inline const TypeNarrowOop *Type::isa_narrowoop() const { |
|
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|
1465 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
|
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|
1466 return (_base == NarrowOop) ? (TypeNarrowOop*)this : NULL; |
|
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|
1467 } |
|
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|
1468 |
|
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|
1469 inline const TypeNarrowKlass *Type::is_narrowklass() const { |
|
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|
1470 assert(_base == NarrowKlass, "Not a narrow oop" ) ; |
|
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|
1471 return (TypeNarrowKlass*)this; |
|
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|
1472 } |
|
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|
1473 |
|
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|
1474 inline const TypeNarrowKlass *Type::isa_narrowklass() const { |
|
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|
1475 return (_base == NarrowKlass) ? (TypeNarrowKlass*)this : NULL; |
|
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|
1476 } |
|
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|
1477 |
|
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|
1478 inline const TypeMetadataPtr *Type::is_metadataptr() const { |
|
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|
1479 // MetadataPtr is the first and CPCachePtr the last |
|
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1480 assert(_base == MetadataPtr, "Not a metadata pointer" ) ; |
|
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|
1481 return (TypeMetadataPtr*)this; |
|
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|
1482 } |
|
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|
1483 |
|
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|
1484 inline const TypeMetadataPtr *Type::isa_metadataptr() const { |
|
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|
1485 return (_base == MetadataPtr) ? (TypeMetadataPtr*)this : NULL; |
|
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|
1486 } |
|
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|
1487 |
| 0 | 1488 inline const TypeKlassPtr *Type::isa_klassptr() const { |
| 1489 return (_base == KlassPtr) ? (TypeKlassPtr*)this : NULL; | |
| 1490 } | |
| 1491 | |
| 1492 inline const TypeKlassPtr *Type::is_klassptr() const { | |
| 1493 assert( _base == KlassPtr, "Not a klass pointer" ); | |
| 1494 return (TypeKlassPtr*)this; | |
| 1495 } | |
| 1496 | |
|
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|
1497 inline const TypePtr* Type::make_ptr() const { |
|
827
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|
1498 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype() : |
|
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1499 ((_base == NarrowKlass) ? is_narrowklass()->get_ptrtype() : |
|
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1500 (isa_ptr() ? is_ptr() : NULL)); |
|
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1501 } |
|
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1502 |
|
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|
1503 inline const TypeOopPtr* Type::make_oopptr() const { |
|
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|
1504 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->is_oopptr() : is_oopptr(); |
|
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|
1505 } |
|
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|
1506 |
|
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|
1507 inline const TypeNarrowOop* Type::make_narrowoop() const { |
|
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1508 return (_base == NarrowOop) ? is_narrowoop() : |
|
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|
1509 (isa_ptr() ? TypeNarrowOop::make(is_ptr()) : NULL); |
|
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|
1510 } |
|
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1511 |
|
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|
1512 inline const TypeNarrowKlass* Type::make_narrowklass() const { |
|
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|
1513 return (_base == NarrowKlass) ? is_narrowklass() : |
|
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|
1514 (isa_ptr() ? TypeNarrowKlass::make(is_ptr()) : NULL); |
|
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|
1515 } |
|
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|
1516 |
| 0 | 1517 inline bool Type::is_floatingpoint() const { |
| 1518 if( (_base == FloatCon) || (_base == FloatBot) || | |
| 1519 (_base == DoubleCon) || (_base == DoubleBot) ) | |
| 1520 return true; | |
| 1521 return false; | |
| 1522 } | |
| 1523 | |
| 10278 | 1524 inline bool Type::is_ptr_to_boxing_obj() const { |
| 1525 const TypeInstPtr* tp = isa_instptr(); | |
| 1526 return (tp != NULL) && (tp->offset() == 0) && | |
| 1527 tp->klass()->is_instance_klass() && | |
| 1528 tp->klass()->as_instance_klass()->is_box_klass(); | |
| 1529 } | |
| 1530 | |
| 0 | 1531 |
| 1532 // =============================================================== | |
| 1533 // Things that need to be 64-bits in the 64-bit build but | |
| 1534 // 32-bits in the 32-bit build. Done this way to get full | |
| 1535 // optimization AND strong typing. | |
| 1536 #ifdef _LP64 | |
| 1537 | |
| 1538 // For type queries and asserts | |
| 1539 #define is_intptr_t is_long | |
| 1540 #define isa_intptr_t isa_long | |
| 1541 #define find_intptr_t_type find_long_type | |
| 1542 #define find_intptr_t_con find_long_con | |
| 1543 #define TypeX TypeLong | |
| 1544 #define Type_X Type::Long | |
| 1545 #define TypeX_X TypeLong::LONG | |
| 1546 #define TypeX_ZERO TypeLong::ZERO | |
| 1547 // For 'ideal_reg' machine registers | |
| 1548 #define Op_RegX Op_RegL | |
| 1549 // For phase->intcon variants | |
| 1550 #define MakeConX longcon | |
| 1551 #define ConXNode ConLNode | |
| 1552 // For array index arithmetic | |
| 1553 #define MulXNode MulLNode | |
| 1554 #define AndXNode AndLNode | |
| 1555 #define OrXNode OrLNode | |
| 1556 #define CmpXNode CmpLNode | |
| 1557 #define SubXNode SubLNode | |
| 1558 #define LShiftXNode LShiftLNode | |
| 1559 // For object size computation: | |
| 1560 #define AddXNode AddLNode | |
|
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1561 #define RShiftXNode RShiftLNode |
| 0 | 1562 // For card marks and hashcodes |
| 1563 #define URShiftXNode URShiftLNode | |
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1564 // UseOptoBiasInlining |
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1565 #define XorXNode XorLNode |
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1566 #define StoreXConditionalNode StoreLConditionalNode |
| 0 | 1567 // Opcodes |
| 1568 #define Op_LShiftX Op_LShiftL | |
| 1569 #define Op_AndX Op_AndL | |
| 1570 #define Op_AddX Op_AddL | |
| 1571 #define Op_SubX Op_SubL | |
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1572 #define Op_XorX Op_XorL |
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1573 #define Op_URShiftX Op_URShiftL |
| 0 | 1574 // conversions |
| 1575 #define ConvI2X(x) ConvI2L(x) | |
| 1576 #define ConvL2X(x) (x) | |
| 1577 #define ConvX2I(x) ConvL2I(x) | |
| 1578 #define ConvX2L(x) (x) | |
| 1579 | |
| 1580 #else | |
| 1581 | |
| 1582 // For type queries and asserts | |
| 1583 #define is_intptr_t is_int | |
| 1584 #define isa_intptr_t isa_int | |
| 1585 #define find_intptr_t_type find_int_type | |
| 1586 #define find_intptr_t_con find_int_con | |
| 1587 #define TypeX TypeInt | |
| 1588 #define Type_X Type::Int | |
| 1589 #define TypeX_X TypeInt::INT | |
| 1590 #define TypeX_ZERO TypeInt::ZERO | |
| 1591 // For 'ideal_reg' machine registers | |
| 1592 #define Op_RegX Op_RegI | |
| 1593 // For phase->intcon variants | |
| 1594 #define MakeConX intcon | |
| 1595 #define ConXNode ConINode | |
| 1596 // For array index arithmetic | |
| 1597 #define MulXNode MulINode | |
| 1598 #define AndXNode AndINode | |
| 1599 #define OrXNode OrINode | |
| 1600 #define CmpXNode CmpINode | |
| 1601 #define SubXNode SubINode | |
| 1602 #define LShiftXNode LShiftINode | |
| 1603 // For object size computation: | |
| 1604 #define AddXNode AddINode | |
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1605 #define RShiftXNode RShiftINode |
| 0 | 1606 // For card marks and hashcodes |
| 1607 #define URShiftXNode URShiftINode | |
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1608 // UseOptoBiasInlining |
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1609 #define XorXNode XorINode |
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1610 #define StoreXConditionalNode StoreIConditionalNode |
| 0 | 1611 // Opcodes |
| 1612 #define Op_LShiftX Op_LShiftI | |
| 1613 #define Op_AndX Op_AndI | |
| 1614 #define Op_AddX Op_AddI | |
| 1615 #define Op_SubX Op_SubI | |
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1616 #define Op_XorX Op_XorI |
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1617 #define Op_URShiftX Op_URShiftI |
| 0 | 1618 // conversions |
| 1619 #define ConvI2X(x) (x) | |
| 1620 #define ConvL2X(x) ConvL2I(x) | |
| 1621 #define ConvX2I(x) (x) | |
| 1622 #define ConvX2L(x) ConvI2L(x) | |
| 1623 | |
| 1624 #endif | |
| 1972 | 1625 |
| 1626 #endif // SHARE_VM_OPTO_TYPE_HPP |