Mercurial > hg > truffle
annotate src/share/vm/opto/type.hpp @ 13014:6c2f07d1495f
8027140: Assertion in compiler when running bigapps/Kitchensink/stability
Summary: filter() code for TypeKlassPtr not moved when permgen removal was introduced
Reviewed-by: twisti, iveresov
| author | roland |
|---|---|
| date | Mon, 28 Oct 2013 09:58:59 +0100 |
| parents | 59e8ad757e19 |
| children | 5ec7dace41a6 15120a36272d |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_OPTO_TYPE_HPP |
| 26 #define SHARE_VM_OPTO_TYPE_HPP | |
| 27 | |
| 28 #include "libadt/port.hpp" | |
| 29 #include "opto/adlcVMDeps.hpp" | |
| 30 #include "runtime/handles.hpp" | |
| 31 | |
| 0 | 32 // Portions of code courtesy of Clifford Click |
| 33 | |
| 34 // Optimization - Graph Style | |
| 35 | |
| 36 | |
| 37 // This class defines a Type lattice. The lattice is used in the constant | |
| 38 // propagation algorithms, and for some type-checking of the iloc code. | |
| 39 // Basic types include RSD's (lower bound, upper bound, stride for integers), | |
| 40 // float & double precision constants, sets of data-labels and code-labels. | |
| 41 // The complete lattice is described below. Subtypes have no relationship to | |
| 42 // up or down in the lattice; that is entirely determined by the behavior of | |
| 43 // the MEET/JOIN functions. | |
| 44 | |
| 45 class Dict; | |
| 46 class Type; | |
| 47 class TypeD; | |
| 48 class TypeF; | |
| 49 class TypeInt; | |
| 50 class TypeLong; | |
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51 class TypeNarrowPtr; |
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52 class TypeNarrowOop; |
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53 class TypeNarrowKlass; |
| 0 | 54 class TypeAry; |
| 55 class TypeTuple; | |
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56 class TypeVect; |
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57 class TypeVectS; |
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58 class TypeVectD; |
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59 class TypeVectX; |
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60 class TypeVectY; |
| 0 | 61 class TypePtr; |
| 62 class TypeRawPtr; | |
| 63 class TypeOopPtr; | |
| 64 class TypeInstPtr; | |
| 65 class TypeAryPtr; | |
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66 class TypeKlassPtr; |
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67 class TypeMetadataPtr; |
| 0 | 68 |
| 69 //------------------------------Type------------------------------------------- | |
| 70 // Basic Type object, represents a set of primitive Values. | |
| 71 // Types are hash-cons'd into a private class dictionary, so only one of each | |
| 72 // different kind of Type exists. Types are never modified after creation, so | |
| 73 // all their interesting fields are constant. | |
| 74 class Type { | |
| 3939 | 75 friend class VMStructs; |
| 76 | |
| 0 | 77 public: |
| 78 enum TYPES { | |
| 79 Bad=0, // Type check | |
| 80 Control, // Control of code (not in lattice) | |
| 81 Top, // Top of the lattice | |
| 82 Int, // Integer range (lo-hi) | |
| 83 Long, // Long integer range (lo-hi) | |
| 84 Half, // Placeholder half of doubleword | |
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85 NarrowOop, // Compressed oop pointer |
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86 NarrowKlass, // Compressed klass pointer |
| 0 | 87 |
| 88 Tuple, // Method signature or object layout | |
| 89 Array, // Array types | |
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90 VectorS, // 32bit Vector types |
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91 VectorD, // 64bit Vector types |
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92 VectorX, // 128bit Vector types |
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93 VectorY, // 256bit Vector types |
| 0 | 94 |
| 95 AnyPtr, // Any old raw, klass, inst, or array pointer | |
| 96 RawPtr, // Raw (non-oop) pointers | |
| 97 OopPtr, // Any and all Java heap entities | |
| 98 InstPtr, // Instance pointers (non-array objects) | |
| 99 AryPtr, // Array pointers | |
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100 // (Ptr order matters: See is_ptr, isa_ptr, is_oopptr, isa_oopptr.) |
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101 |
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102 MetadataPtr, // Generic metadata |
| 0 | 103 KlassPtr, // Klass pointers |
| 104 | |
| 105 Function, // Function signature | |
| 106 Abio, // Abstract I/O | |
| 107 Return_Address, // Subroutine return address | |
| 108 Memory, // Abstract store | |
| 109 FloatTop, // No float value | |
| 110 FloatCon, // Floating point constant | |
| 111 FloatBot, // Any float value | |
| 112 DoubleTop, // No double value | |
| 113 DoubleCon, // Double precision constant | |
| 114 DoubleBot, // Any double value | |
| 115 Bottom, // Bottom of lattice | |
| 116 lastype // Bogus ending type (not in lattice) | |
| 117 }; | |
| 118 | |
| 119 // Signal values for offsets from a base pointer | |
| 120 enum OFFSET_SIGNALS { | |
| 121 OffsetTop = -2000000000, // undefined offset | |
| 122 OffsetBot = -2000000001 // any possible offset | |
| 123 }; | |
| 124 | |
| 125 // Min and max WIDEN values. | |
| 126 enum WIDEN { | |
| 127 WidenMin = 0, | |
| 128 WidenMax = 3 | |
| 129 }; | |
| 130 | |
| 131 private: | |
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132 typedef struct { |
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133 const TYPES dual_type; |
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134 const BasicType basic_type; |
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135 const char* msg; |
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136 const bool isa_oop; |
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137 const int ideal_reg; |
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138 const relocInfo::relocType reloc; |
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139 } TypeInfo; |
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140 |
| 0 | 141 // Dictionary of types shared among compilations. |
| 142 static Dict* _shared_type_dict; | |
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143 static TypeInfo _type_info[]; |
| 0 | 144 |
| 145 static int uhash( const Type *const t ); | |
| 146 // Structural equality check. Assumes that cmp() has already compared | |
| 147 // the _base types and thus knows it can cast 't' appropriately. | |
| 148 virtual bool eq( const Type *t ) const; | |
| 149 | |
| 150 // Top-level hash-table of types | |
| 151 static Dict *type_dict() { | |
| 152 return Compile::current()->type_dict(); | |
| 153 } | |
| 154 | |
| 155 // DUAL operation: reflect around lattice centerline. Used instead of | |
| 156 // join to ensure my lattice is symmetric up and down. Dual is computed | |
| 157 // lazily, on demand, and cached in _dual. | |
| 158 const Type *_dual; // Cached dual value | |
| 159 // Table for efficient dualing of base types | |
| 160 static const TYPES dual_type[lastype]; | |
| 161 | |
| 12966 | 162 #ifdef ASSERT |
| 163 // One type is interface, the other is oop | |
| 164 virtual bool interface_vs_oop_helper(const Type *t) const; | |
| 165 #endif | |
| 166 | |
| 0 | 167 protected: |
| 168 // Each class of type is also identified by its base. | |
| 169 const TYPES _base; // Enum of Types type | |
| 170 | |
| 171 Type( TYPES t ) : _dual(NULL), _base(t) {} // Simple types | |
| 172 // ~Type(); // Use fast deallocation | |
| 173 const Type *hashcons(); // Hash-cons the type | |
| 174 | |
| 175 public: | |
| 176 | |
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177 inline void* operator new( size_t x ) throw() { |
| 0 | 178 Compile* compile = Compile::current(); |
| 179 compile->set_type_last_size(x); | |
| 180 void *temp = compile->type_arena()->Amalloc_D(x); | |
| 181 compile->set_type_hwm(temp); | |
| 182 return temp; | |
| 183 } | |
| 184 inline void operator delete( void* ptr ) { | |
| 185 Compile* compile = Compile::current(); | |
| 186 compile->type_arena()->Afree(ptr,compile->type_last_size()); | |
| 187 } | |
| 188 | |
| 189 // Initialize the type system for a particular compilation. | |
| 190 static void Initialize(Compile* compile); | |
| 191 | |
| 192 // Initialize the types shared by all compilations. | |
| 193 static void Initialize_shared(Compile* compile); | |
| 194 | |
| 195 TYPES base() const { | |
| 196 assert(_base > Bad && _base < lastype, "sanity"); | |
| 197 return _base; | |
| 198 } | |
| 199 | |
| 200 // Create a new hash-consd type | |
| 201 static const Type *make(enum TYPES); | |
| 202 // Test for equivalence of types | |
| 203 static int cmp( const Type *const t1, const Type *const t2 ); | |
| 204 // Test for higher or equal in lattice | |
| 205 int higher_equal( const Type *t ) const { return !cmp(meet(t),t); } | |
| 206 | |
| 207 // MEET operation; lower in lattice. | |
| 208 const Type *meet( const Type *t ) const; | |
| 209 // WIDEN: 'widens' for Ints and other range types | |
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210 virtual const Type *widen( const Type *old, const Type* limit ) const { return this; } |
| 0 | 211 // NARROW: complement for widen, used by pessimistic phases |
| 212 virtual const Type *narrow( const Type *old ) const { return this; } | |
| 213 | |
| 214 // DUAL operation: reflect around lattice centerline. Used instead of | |
| 215 // join to ensure my lattice is symmetric up and down. | |
| 216 const Type *dual() const { return _dual; } | |
| 217 | |
| 218 // Compute meet dependent on base type | |
| 219 virtual const Type *xmeet( const Type *t ) const; | |
| 220 virtual const Type *xdual() const; // Compute dual right now. | |
| 221 | |
| 222 // JOIN operation; higher in lattice. Done by finding the dual of the | |
| 223 // meet of the dual of the 2 inputs. | |
| 224 const Type *join( const Type *t ) const { | |
| 225 return dual()->meet(t->dual())->dual(); } | |
| 226 | |
| 227 // Modified version of JOIN adapted to the needs Node::Value. | |
| 228 // Normalizes all empty values to TOP. Does not kill _widen bits. | |
| 229 // Currently, it also works around limitations involving interface types. | |
| 230 virtual const Type *filter( const Type *kills ) const; | |
| 231 | |
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232 #ifdef ASSERT |
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233 // One type is interface, the other is oop |
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234 virtual bool interface_vs_oop(const Type *t) const; |
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235 #endif |
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236 |
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237 // Returns true if this pointer points at memory which contains a |
| 163 | 238 // compressed oop references. |
| 239 bool is_ptr_to_narrowoop() const; | |
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240 bool is_ptr_to_narrowklass() const; |
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241 |
| 10278 | 242 bool is_ptr_to_boxing_obj() const; |
| 243 | |
| 244 | |
| 0 | 245 // Convenience access |
| 246 float getf() const; | |
| 247 double getd() const; | |
| 248 | |
| 249 const TypeInt *is_int() const; | |
| 250 const TypeInt *isa_int() const; // Returns NULL if not an Int | |
| 251 const TypeLong *is_long() const; | |
| 252 const TypeLong *isa_long() const; // Returns NULL if not a Long | |
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253 const TypeD *isa_double() const; // Returns NULL if not a Double{Top,Con,Bot} |
| 0 | 254 const TypeD *is_double_constant() const; // Asserts it is a DoubleCon |
| 255 const TypeD *isa_double_constant() const; // Returns NULL if not a DoubleCon | |
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256 const TypeF *isa_float() const; // Returns NULL if not a Float{Top,Con,Bot} |
| 0 | 257 const TypeF *is_float_constant() const; // Asserts it is a FloatCon |
| 258 const TypeF *isa_float_constant() const; // Returns NULL if not a FloatCon | |
| 259 const TypeTuple *is_tuple() const; // Collection of fields, NOT a pointer | |
| 260 const TypeAry *is_ary() const; // Array, NOT array pointer | |
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261 const TypeVect *is_vect() const; // Vector |
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262 const TypeVect *isa_vect() const; // Returns NULL if not a Vector |
| 0 | 263 const TypePtr *is_ptr() const; // Asserts it is a ptr type |
| 264 const TypePtr *isa_ptr() const; // Returns NULL if not ptr type | |
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265 const TypeRawPtr *isa_rawptr() const; // NOT Java oop |
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266 const TypeRawPtr *is_rawptr() const; // Asserts is rawptr |
| 163 | 267 const TypeNarrowOop *is_narrowoop() const; // Java-style GC'd pointer |
| 268 const TypeNarrowOop *isa_narrowoop() const; // Returns NULL if not oop ptr type | |
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269 const TypeNarrowKlass *is_narrowklass() const; // compressed klass pointer |
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270 const TypeNarrowKlass *isa_narrowklass() const;// Returns NULL if not oop ptr type |
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271 const TypeOopPtr *isa_oopptr() const; // Returns NULL if not oop ptr type |
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272 const TypeOopPtr *is_oopptr() const; // Java-style GC'd pointer |
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273 const TypeInstPtr *isa_instptr() const; // Returns NULL if not InstPtr |
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274 const TypeInstPtr *is_instptr() const; // Instance |
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275 const TypeAryPtr *isa_aryptr() const; // Returns NULL if not AryPtr |
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276 const TypeAryPtr *is_aryptr() const; // Array oop |
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277 |
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278 const TypeMetadataPtr *isa_metadataptr() const; // Returns NULL if not oop ptr type |
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279 const TypeMetadataPtr *is_metadataptr() const; // Java-style GC'd pointer |
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280 const TypeKlassPtr *isa_klassptr() const; // Returns NULL if not KlassPtr |
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281 const TypeKlassPtr *is_klassptr() const; // assert if not KlassPtr |
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282 |
| 0 | 283 virtual bool is_finite() const; // Has a finite value |
| 284 virtual bool is_nan() const; // Is not a number (NaN) | |
| 285 | |
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286 // Returns this ptr type or the equivalent ptr type for this compressed pointer. |
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287 const TypePtr* make_ptr() const; |
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288 |
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289 // Returns this oopptr type or the equivalent oopptr type for this compressed pointer. |
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290 // Asserts if the underlying type is not an oopptr or narrowoop. |
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291 const TypeOopPtr* make_oopptr() const; |
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292 |
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293 // Returns this compressed pointer or the equivalent compressed version |
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294 // of this pointer type. |
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295 const TypeNarrowOop* make_narrowoop() const; |
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296 |
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297 // Returns this compressed klass pointer or the equivalent |
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298 // compressed version of this pointer type. |
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299 const TypeNarrowKlass* make_narrowklass() const; |
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300 |
| 0 | 301 // Special test for register pressure heuristic |
| 302 bool is_floatingpoint() const; // True if Float or Double base type | |
| 303 | |
| 304 // Do you have memory, directly or through a tuple? | |
| 305 bool has_memory( ) const; | |
| 306 | |
| 307 // TRUE if type is a singleton | |
| 308 virtual bool singleton(void) const; | |
| 309 | |
| 310 // TRUE if type is above the lattice centerline, and is therefore vacuous | |
| 311 virtual bool empty(void) const; | |
| 312 | |
| 313 // Return a hash for this type. The hash function is public so ConNode | |
| 314 // (constants) can hash on their constant, which is represented by a Type. | |
| 315 virtual int hash() const; | |
| 316 | |
| 317 // Map ideal registers (machine types) to ideal types | |
| 318 static const Type *mreg2type[]; | |
| 319 | |
| 320 // Printing, statistics | |
| 321 #ifndef PRODUCT | |
| 322 void dump_on(outputStream *st) const; | |
| 323 void dump() const { | |
| 324 dump_on(tty); | |
| 325 } | |
| 326 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 327 static void dump_stats(); | |
| 328 #endif | |
| 329 void typerr(const Type *t) const; // Mixing types error | |
| 330 | |
| 331 // Create basic type | |
| 332 static const Type* get_const_basic_type(BasicType type) { | |
| 333 assert((uint)type <= T_CONFLICT && _const_basic_type[type] != NULL, "bad type"); | |
| 334 return _const_basic_type[type]; | |
| 335 } | |
| 336 | |
| 337 // Mapping to the array element's basic type. | |
| 338 BasicType array_element_basic_type() const; | |
| 339 | |
| 340 // Create standard type for a ciType: | |
| 341 static const Type* get_const_type(ciType* type); | |
| 342 | |
| 343 // Create standard zero value: | |
| 344 static const Type* get_zero_type(BasicType type) { | |
| 345 assert((uint)type <= T_CONFLICT && _zero_type[type] != NULL, "bad type"); | |
| 346 return _zero_type[type]; | |
| 347 } | |
| 348 | |
| 349 // Report if this is a zero value (not top). | |
| 350 bool is_zero_type() const { | |
| 351 BasicType type = basic_type(); | |
| 352 if (type == T_VOID || type >= T_CONFLICT) | |
| 353 return false; | |
| 354 else | |
| 355 return (this == _zero_type[type]); | |
| 356 } | |
| 357 | |
| 358 // Convenience common pre-built types. | |
| 359 static const Type *ABIO; | |
| 360 static const Type *BOTTOM; | |
| 361 static const Type *CONTROL; | |
| 362 static const Type *DOUBLE; | |
| 363 static const Type *FLOAT; | |
| 364 static const Type *HALF; | |
| 365 static const Type *MEMORY; | |
| 366 static const Type *MULTI; | |
| 367 static const Type *RETURN_ADDRESS; | |
| 368 static const Type *TOP; | |
| 369 | |
| 370 // Mapping from compiler type to VM BasicType | |
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371 BasicType basic_type() const { return _type_info[_base].basic_type; } |
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372 int ideal_reg() const { return _type_info[_base].ideal_reg; } |
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373 const char* msg() const { return _type_info[_base].msg; } |
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374 bool isa_oop_ptr() const { return _type_info[_base].isa_oop; } |
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375 relocInfo::relocType reloc() const { return _type_info[_base].reloc; } |
| 0 | 376 |
| 377 // Mapping from CI type system to compiler type: | |
| 378 static const Type* get_typeflow_type(ciType* type); | |
| 379 | |
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380 static const Type* make_from_constant(ciConstant constant, |
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381 bool require_constant = false, |
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382 bool is_autobox_cache = false); |
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383 |
| 12966 | 384 // Speculative type. See TypeInstPtr |
| 385 virtual ciKlass* speculative_type() const { return NULL; } | |
| 386 | |
| 0 | 387 private: |
| 388 // support arrays | |
| 389 static const BasicType _basic_type[]; | |
| 390 static const Type* _zero_type[T_CONFLICT+1]; | |
| 391 static const Type* _const_basic_type[T_CONFLICT+1]; | |
| 392 }; | |
| 393 | |
| 394 //------------------------------TypeF------------------------------------------ | |
| 395 // Class of Float-Constant Types. | |
| 396 class TypeF : public Type { | |
| 397 TypeF( float f ) : Type(FloatCon), _f(f) {}; | |
| 398 public: | |
| 399 virtual bool eq( const Type *t ) const; | |
| 400 virtual int hash() const; // Type specific hashing | |
| 401 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 402 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 403 public: | |
| 404 const float _f; // Float constant | |
| 405 | |
| 406 static const TypeF *make(float f); | |
| 407 | |
| 408 virtual bool is_finite() const; // Has a finite value | |
| 409 virtual bool is_nan() const; // Is not a number (NaN) | |
| 410 | |
| 411 virtual const Type *xmeet( const Type *t ) const; | |
| 412 virtual const Type *xdual() const; // Compute dual right now. | |
| 413 // Convenience common pre-built types. | |
| 414 static const TypeF *ZERO; // positive zero only | |
| 415 static const TypeF *ONE; | |
| 416 #ifndef PRODUCT | |
| 417 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 418 #endif | |
| 419 }; | |
| 420 | |
| 421 //------------------------------TypeD------------------------------------------ | |
| 422 // Class of Double-Constant Types. | |
| 423 class TypeD : public Type { | |
| 424 TypeD( double d ) : Type(DoubleCon), _d(d) {}; | |
| 425 public: | |
| 426 virtual bool eq( const Type *t ) const; | |
| 427 virtual int hash() const; // Type specific hashing | |
| 428 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 429 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 430 public: | |
| 431 const double _d; // Double constant | |
| 432 | |
| 433 static const TypeD *make(double d); | |
| 434 | |
| 435 virtual bool is_finite() const; // Has a finite value | |
| 436 virtual bool is_nan() const; // Is not a number (NaN) | |
| 437 | |
| 438 virtual const Type *xmeet( const Type *t ) const; | |
| 439 virtual const Type *xdual() const; // Compute dual right now. | |
| 440 // Convenience common pre-built types. | |
| 441 static const TypeD *ZERO; // positive zero only | |
| 442 static const TypeD *ONE; | |
| 443 #ifndef PRODUCT | |
| 444 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 445 #endif | |
| 446 }; | |
| 447 | |
| 448 //------------------------------TypeInt---------------------------------------- | |
| 449 // Class of integer ranges, the set of integers between a lower bound and an | |
| 450 // upper bound, inclusive. | |
| 451 class TypeInt : public Type { | |
| 452 TypeInt( jint lo, jint hi, int w ); | |
| 453 public: | |
| 454 virtual bool eq( const Type *t ) const; | |
| 455 virtual int hash() const; // Type specific hashing | |
| 456 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 457 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 458 public: | |
| 459 const jint _lo, _hi; // Lower bound, upper bound | |
| 460 const short _widen; // Limit on times we widen this sucker | |
| 461 | |
| 462 static const TypeInt *make(jint lo); | |
| 463 // must always specify w | |
| 464 static const TypeInt *make(jint lo, jint hi, int w); | |
| 465 | |
| 466 // Check for single integer | |
| 467 int is_con() const { return _lo==_hi; } | |
| 468 bool is_con(int i) const { return is_con() && _lo == i; } | |
| 469 jint get_con() const { assert( is_con(), "" ); return _lo; } | |
| 470 | |
| 471 virtual bool is_finite() const; // Has a finite value | |
| 472 | |
| 473 virtual const Type *xmeet( const Type *t ) const; | |
| 474 virtual const Type *xdual() const; // Compute dual right now. | |
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475 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
| 0 | 476 virtual const Type *narrow( const Type *t ) const; |
| 477 // Do not kill _widen bits. | |
| 478 virtual const Type *filter( const Type *kills ) const; | |
| 479 // Convenience common pre-built types. | |
| 480 static const TypeInt *MINUS_1; | |
| 481 static const TypeInt *ZERO; | |
| 482 static const TypeInt *ONE; | |
| 483 static const TypeInt *BOOL; | |
| 484 static const TypeInt *CC; | |
| 485 static const TypeInt *CC_LT; // [-1] == MINUS_1 | |
| 486 static const TypeInt *CC_GT; // [1] == ONE | |
| 487 static const TypeInt *CC_EQ; // [0] == ZERO | |
| 488 static const TypeInt *CC_LE; // [-1,0] | |
| 489 static const TypeInt *CC_GE; // [0,1] == BOOL (!) | |
| 490 static const TypeInt *BYTE; | |
| 624 | 491 static const TypeInt *UBYTE; |
| 0 | 492 static const TypeInt *CHAR; |
| 493 static const TypeInt *SHORT; | |
| 494 static const TypeInt *POS; | |
| 495 static const TypeInt *POS1; | |
| 496 static const TypeInt *INT; | |
| 497 static const TypeInt *SYMINT; // symmetric range [-max_jint..max_jint] | |
| 498 #ifndef PRODUCT | |
| 499 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 500 #endif | |
| 501 }; | |
| 502 | |
| 503 | |
| 504 //------------------------------TypeLong--------------------------------------- | |
| 505 // Class of long integer ranges, the set of integers between a lower bound and | |
| 506 // an upper bound, inclusive. | |
| 507 class TypeLong : public Type { | |
| 508 TypeLong( jlong lo, jlong hi, int w ); | |
| 509 public: | |
| 510 virtual bool eq( const Type *t ) const; | |
| 511 virtual int hash() const; // Type specific hashing | |
| 512 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 513 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 514 public: | |
| 515 const jlong _lo, _hi; // Lower bound, upper bound | |
| 516 const short _widen; // Limit on times we widen this sucker | |
| 517 | |
| 518 static const TypeLong *make(jlong lo); | |
| 519 // must always specify w | |
| 520 static const TypeLong *make(jlong lo, jlong hi, int w); | |
| 521 | |
| 522 // Check for single integer | |
| 523 int is_con() const { return _lo==_hi; } | |
| 145 | 524 bool is_con(int i) const { return is_con() && _lo == i; } |
| 0 | 525 jlong get_con() const { assert( is_con(), "" ); return _lo; } |
| 526 | |
| 527 virtual bool is_finite() const; // Has a finite value | |
| 528 | |
| 529 virtual const Type *xmeet( const Type *t ) const; | |
| 530 virtual const Type *xdual() const; // Compute dual right now. | |
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531 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
| 0 | 532 virtual const Type *narrow( const Type *t ) const; |
| 533 // Do not kill _widen bits. | |
| 534 virtual const Type *filter( const Type *kills ) const; | |
| 535 // Convenience common pre-built types. | |
| 536 static const TypeLong *MINUS_1; | |
| 537 static const TypeLong *ZERO; | |
| 538 static const TypeLong *ONE; | |
| 539 static const TypeLong *POS; | |
| 540 static const TypeLong *LONG; | |
| 541 static const TypeLong *INT; // 32-bit subrange [min_jint..max_jint] | |
| 542 static const TypeLong *UINT; // 32-bit unsigned [0..max_juint] | |
| 543 #ifndef PRODUCT | |
| 544 virtual void dump2( Dict &d, uint, outputStream *st ) const;// Specialized per-Type dumping | |
| 545 #endif | |
| 546 }; | |
| 547 | |
| 548 //------------------------------TypeTuple-------------------------------------- | |
| 549 // Class of Tuple Types, essentially type collections for function signatures | |
| 550 // and class layouts. It happens to also be a fast cache for the HotSpot | |
| 551 // signature types. | |
| 552 class TypeTuple : public Type { | |
| 553 TypeTuple( uint cnt, const Type **fields ) : Type(Tuple), _cnt(cnt), _fields(fields) { } | |
| 554 public: | |
| 555 virtual bool eq( const Type *t ) const; | |
| 556 virtual int hash() const; // Type specific hashing | |
| 557 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 558 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 559 | |
| 560 public: | |
| 561 const uint _cnt; // Count of fields | |
| 562 const Type ** const _fields; // Array of field types | |
| 563 | |
| 564 // Accessors: | |
| 565 uint cnt() const { return _cnt; } | |
| 566 const Type* field_at(uint i) const { | |
| 567 assert(i < _cnt, "oob"); | |
| 568 return _fields[i]; | |
| 569 } | |
| 570 void set_field_at(uint i, const Type* t) { | |
| 571 assert(i < _cnt, "oob"); | |
| 572 _fields[i] = t; | |
| 573 } | |
| 574 | |
| 575 static const TypeTuple *make( uint cnt, const Type **fields ); | |
| 576 static const TypeTuple *make_range(ciSignature *sig); | |
| 577 static const TypeTuple *make_domain(ciInstanceKlass* recv, ciSignature *sig); | |
| 578 | |
| 579 // Subroutine call type with space allocated for argument types | |
| 580 static const Type **fields( uint arg_cnt ); | |
| 581 | |
| 582 virtual const Type *xmeet( const Type *t ) const; | |
| 583 virtual const Type *xdual() const; // Compute dual right now. | |
| 584 // Convenience common pre-built types. | |
| 585 static const TypeTuple *IFBOTH; | |
| 586 static const TypeTuple *IFFALSE; | |
| 587 static const TypeTuple *IFTRUE; | |
| 588 static const TypeTuple *IFNEITHER; | |
| 589 static const TypeTuple *LOOPBODY; | |
| 590 static const TypeTuple *MEMBAR; | |
| 591 static const TypeTuple *STORECONDITIONAL; | |
| 592 static const TypeTuple *START_I2C; | |
| 593 static const TypeTuple *INT_PAIR; | |
| 594 static const TypeTuple *LONG_PAIR; | |
| 12323 | 595 static const TypeTuple *INT_CC_PAIR; |
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596 static const TypeTuple *LONG_CC_PAIR; |
| 0 | 597 #ifndef PRODUCT |
| 598 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
| 599 #endif | |
| 600 }; | |
| 601 | |
| 602 //------------------------------TypeAry---------------------------------------- | |
| 603 // Class of Array Types | |
| 604 class TypeAry : public Type { | |
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605 TypeAry(const Type* elem, const TypeInt* size, bool stable) : Type(Array), |
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606 _elem(elem), _size(size), _stable(stable) {} |
| 0 | 607 public: |
| 608 virtual bool eq( const Type *t ) const; | |
| 609 virtual int hash() const; // Type specific hashing | |
| 610 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 611 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 612 | |
| 613 private: | |
| 614 const Type *_elem; // Element type of array | |
| 615 const TypeInt *_size; // Elements in array | |
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616 const bool _stable; // Are elements @Stable? |
| 0 | 617 friend class TypeAryPtr; |
| 618 | |
| 619 public: | |
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620 static const TypeAry* make(const Type* elem, const TypeInt* size, bool stable = false); |
| 0 | 621 |
| 622 virtual const Type *xmeet( const Type *t ) const; | |
| 623 virtual const Type *xdual() const; // Compute dual right now. | |
| 624 bool ary_must_be_exact() const; // true if arrays of such are never generic | |
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625 #ifdef ASSERT |
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626 // One type is interface, the other is oop |
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627 virtual bool interface_vs_oop(const Type *t) const; |
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628 #endif |
| 0 | 629 #ifndef PRODUCT |
| 630 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
| 631 #endif | |
| 632 }; | |
| 633 | |
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634 //------------------------------TypeVect--------------------------------------- |
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635 // Class of Vector Types |
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636 class TypeVect : public Type { |
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637 const Type* _elem; // Vector's element type |
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638 const uint _length; // Elements in vector (power of 2) |
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639 |
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640 protected: |
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641 TypeVect(TYPES t, const Type* elem, uint length) : Type(t), |
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642 _elem(elem), _length(length) {} |
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643 |
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644 public: |
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645 const Type* element_type() const { return _elem; } |
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646 BasicType element_basic_type() const { return _elem->array_element_basic_type(); } |
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647 uint length() const { return _length; } |
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648 uint length_in_bytes() const { |
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649 return _length * type2aelembytes(element_basic_type()); |
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650 } |
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651 |
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652 virtual bool eq(const Type *t) const; |
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653 virtual int hash() const; // Type specific hashing |
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654 virtual bool singleton(void) const; // TRUE if type is a singleton |
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655 virtual bool empty(void) const; // TRUE if type is vacuous |
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656 |
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657 static const TypeVect *make(const BasicType elem_bt, uint length) { |
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658 // Use bottom primitive type. |
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659 return make(get_const_basic_type(elem_bt), length); |
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660 } |
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661 // Used directly by Replicate nodes to construct singleton vector. |
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662 static const TypeVect *make(const Type* elem, uint length); |
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663 |
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664 virtual const Type *xmeet( const Type *t) const; |
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665 virtual const Type *xdual() const; // Compute dual right now. |
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666 |
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667 static const TypeVect *VECTS; |
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668 static const TypeVect *VECTD; |
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669 static const TypeVect *VECTX; |
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670 static const TypeVect *VECTY; |
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671 |
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672 #ifndef PRODUCT |
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673 virtual void dump2(Dict &d, uint, outputStream *st) const; // Specialized per-Type dumping |
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674 #endif |
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675 }; |
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676 |
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677 class TypeVectS : public TypeVect { |
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678 friend class TypeVect; |
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679 TypeVectS(const Type* elem, uint length) : TypeVect(VectorS, elem, length) {} |
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680 }; |
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681 |
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682 class TypeVectD : public TypeVect { |
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683 friend class TypeVect; |
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684 TypeVectD(const Type* elem, uint length) : TypeVect(VectorD, elem, length) {} |
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685 }; |
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686 |
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687 class TypeVectX : public TypeVect { |
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688 friend class TypeVect; |
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689 TypeVectX(const Type* elem, uint length) : TypeVect(VectorX, elem, length) {} |
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690 }; |
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691 |
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692 class TypeVectY : public TypeVect { |
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693 friend class TypeVect; |
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694 TypeVectY(const Type* elem, uint length) : TypeVect(VectorY, elem, length) {} |
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695 }; |
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696 |
| 0 | 697 //------------------------------TypePtr---------------------------------------- |
| 698 // Class of machine Pointer Types: raw data, instances or arrays. | |
| 699 // If the _base enum is AnyPtr, then this refers to all of the above. | |
| 700 // Otherwise the _base will indicate which subset of pointers is affected, | |
| 701 // and the class will be inherited from. | |
| 702 class TypePtr : public Type { | |
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703 friend class TypeNarrowPtr; |
| 0 | 704 public: |
| 705 enum PTR { TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, lastPTR }; | |
| 706 protected: | |
| 707 TypePtr( TYPES t, PTR ptr, int offset ) : Type(t), _ptr(ptr), _offset(offset) {} | |
| 708 virtual bool eq( const Type *t ) const; | |
| 709 virtual int hash() const; // Type specific hashing | |
| 710 static const PTR ptr_meet[lastPTR][lastPTR]; | |
| 711 static const PTR ptr_dual[lastPTR]; | |
| 712 static const char * const ptr_msg[lastPTR]; | |
| 713 | |
| 714 public: | |
| 715 const int _offset; // Offset into oop, with TOP & BOT | |
| 716 const PTR _ptr; // Pointer equivalence class | |
| 717 | |
| 718 const int offset() const { return _offset; } | |
| 719 const PTR ptr() const { return _ptr; } | |
| 720 | |
| 721 static const TypePtr *make( TYPES t, PTR ptr, int offset ); | |
| 722 | |
| 723 // Return a 'ptr' version of this type | |
| 724 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 725 | |
| 726 virtual intptr_t get_con() const; | |
| 727 | |
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728 int xadd_offset( intptr_t offset ) const; |
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729 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 0 | 730 |
| 731 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 732 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 733 virtual const Type *xmeet( const Type *t ) const; | |
| 734 int meet_offset( int offset ) const; | |
| 735 int dual_offset( ) const; | |
| 736 virtual const Type *xdual() const; // Compute dual right now. | |
| 737 | |
| 738 // meet, dual and join over pointer equivalence sets | |
| 739 PTR meet_ptr( const PTR in_ptr ) const { return ptr_meet[in_ptr][ptr()]; } | |
| 740 PTR dual_ptr() const { return ptr_dual[ptr()]; } | |
| 741 | |
| 742 // This is textually confusing unless one recalls that | |
| 743 // join(t) == dual()->meet(t->dual())->dual(). | |
| 744 PTR join_ptr( const PTR in_ptr ) const { | |
| 745 return ptr_dual[ ptr_meet[ ptr_dual[in_ptr] ] [ dual_ptr() ] ]; | |
| 746 } | |
| 747 | |
| 748 // Tests for relation to centerline of type lattice: | |
| 749 static bool above_centerline(PTR ptr) { return (ptr <= AnyNull); } | |
| 750 static bool below_centerline(PTR ptr) { return (ptr >= NotNull); } | |
| 751 // Convenience common pre-built types. | |
| 752 static const TypePtr *NULL_PTR; | |
| 753 static const TypePtr *NOTNULL; | |
| 754 static const TypePtr *BOTTOM; | |
| 755 #ifndef PRODUCT | |
| 756 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 757 #endif | |
| 758 }; | |
| 759 | |
| 760 //------------------------------TypeRawPtr------------------------------------- | |
| 761 // Class of raw pointers, pointers to things other than Oops. Examples | |
| 762 // include the stack pointer, top of heap, card-marking area, handles, etc. | |
| 763 class TypeRawPtr : public TypePtr { | |
| 764 protected: | |
| 765 TypeRawPtr( PTR ptr, address bits ) : TypePtr(RawPtr,ptr,0), _bits(bits){} | |
| 766 public: | |
| 767 virtual bool eq( const Type *t ) const; | |
| 768 virtual int hash() const; // Type specific hashing | |
| 769 | |
| 770 const address _bits; // Constant value, if applicable | |
| 771 | |
| 772 static const TypeRawPtr *make( PTR ptr ); | |
| 773 static const TypeRawPtr *make( address bits ); | |
| 774 | |
| 775 // Return a 'ptr' version of this type | |
| 776 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 777 | |
| 778 virtual intptr_t get_con() const; | |
| 779 | |
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780 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 0 | 781 |
| 782 virtual const Type *xmeet( const Type *t ) const; | |
| 783 virtual const Type *xdual() const; // Compute dual right now. | |
| 784 // Convenience common pre-built types. | |
| 785 static const TypeRawPtr *BOTTOM; | |
| 786 static const TypeRawPtr *NOTNULL; | |
| 787 #ifndef PRODUCT | |
| 788 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 789 #endif | |
| 790 }; | |
| 791 | |
| 792 //------------------------------TypeOopPtr------------------------------------- | |
| 793 // Some kind of oop (Java pointer), either klass or instance or array. | |
| 794 class TypeOopPtr : public TypePtr { | |
| 795 protected: | |
| 12966 | 796 TypeOopPtr(TYPES t, PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id, const TypeOopPtr* speculative); |
| 0 | 797 public: |
| 798 virtual bool eq( const Type *t ) const; | |
| 799 virtual int hash() const; // Type specific hashing | |
| 800 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 801 enum { | |
| 223 | 802 InstanceTop = -1, // undefined instance |
| 803 InstanceBot = 0 // any possible instance | |
| 0 | 804 }; |
| 805 protected: | |
| 806 | |
| 807 // Oop is NULL, unless this is a constant oop. | |
| 808 ciObject* _const_oop; // Constant oop | |
| 809 // If _klass is NULL, then so is _sig. This is an unloaded klass. | |
| 810 ciKlass* _klass; // Klass object | |
| 811 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) | |
| 812 bool _klass_is_exact; | |
| 163 | 813 bool _is_ptr_to_narrowoop; |
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814 bool _is_ptr_to_narrowklass; |
| 10278 | 815 bool _is_ptr_to_boxed_value; |
| 0 | 816 |
| 223 | 817 // If not InstanceTop or InstanceBot, indicates that this is |
| 818 // a particular instance of this type which is distinct. | |
| 819 // This is the the node index of the allocation node creating this instance. | |
| 820 int _instance_id; | |
| 0 | 821 |
| 12966 | 822 // Extra type information profiling gave us. We propagate it the |
| 823 // same way the rest of the type info is propagated. If we want to | |
| 824 // use it, then we have to emit a guard: this part of the type is | |
| 825 // not something we know but something we speculate about the type. | |
| 826 const TypeOopPtr* _speculative; | |
| 827 | |
| 0 | 828 static const TypeOopPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); |
| 829 | |
| 223 | 830 int dual_instance_id() const; |
| 831 int meet_instance_id(int uid) const; | |
| 0 | 832 |
| 12966 | 833 // utility methods to work on the speculative part of the type |
| 834 const TypeOopPtr* dual_speculative() const; | |
| 835 const TypeOopPtr* meet_speculative(const TypeOopPtr* other) const; | |
| 836 bool eq_speculative(const TypeOopPtr* other) const; | |
| 837 int hash_speculative() const; | |
| 838 const TypeOopPtr* add_offset_speculative(intptr_t offset) const; | |
| 839 #ifndef PRODUCT | |
| 840 void dump_speculative(outputStream *st) const; | |
| 841 #endif | |
| 842 | |
| 0 | 843 public: |
| 844 // Creates a type given a klass. Correctly handles multi-dimensional arrays | |
| 845 // Respects UseUniqueSubclasses. | |
| 846 // If the klass is final, the resulting type will be exact. | |
| 847 static const TypeOopPtr* make_from_klass(ciKlass* klass) { | |
| 848 return make_from_klass_common(klass, true, false); | |
| 849 } | |
| 850 // Same as before, but will produce an exact type, even if | |
| 851 // the klass is not final, as long as it has exactly one implementation. | |
| 852 static const TypeOopPtr* make_from_klass_unique(ciKlass* klass) { | |
| 853 return make_from_klass_common(klass, true, true); | |
| 854 } | |
| 855 // Same as before, but does not respects UseUniqueSubclasses. | |
| 856 // Use this only for creating array element types. | |
| 857 static const TypeOopPtr* make_from_klass_raw(ciKlass* klass) { | |
| 858 return make_from_klass_common(klass, false, false); | |
| 859 } | |
| 860 // Creates a singleton type given an object. | |
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861 // If the object cannot be rendered as a constant, |
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862 // may return a non-singleton type. |
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863 // If require_constant, produce a NULL if a singleton is not possible. |
| 10278 | 864 static const TypeOopPtr* make_from_constant(ciObject* o, |
| 865 bool require_constant = false, | |
| 866 bool not_null_elements = false); | |
| 0 | 867 |
| 868 // Make a generic (unclassed) pointer to an oop. | |
| 12966 | 869 static const TypeOopPtr* make(PTR ptr, int offset, int instance_id, const TypeOopPtr* speculative); |
| 0 | 870 |
| 871 ciObject* const_oop() const { return _const_oop; } | |
| 872 virtual ciKlass* klass() const { return _klass; } | |
| 873 bool klass_is_exact() const { return _klass_is_exact; } | |
| 163 | 874 |
| 875 // Returns true if this pointer points at memory which contains a | |
| 876 // compressed oop references. | |
| 877 bool is_ptr_to_narrowoop_nv() const { return _is_ptr_to_narrowoop; } | |
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878 bool is_ptr_to_narrowklass_nv() const { return _is_ptr_to_narrowklass; } |
| 10278 | 879 bool is_ptr_to_boxed_value() const { return _is_ptr_to_boxed_value; } |
| 223 | 880 bool is_known_instance() const { return _instance_id > 0; } |
| 881 int instance_id() const { return _instance_id; } | |
| 882 bool is_known_instance_field() const { return is_known_instance() && _offset >= 0; } | |
| 12966 | 883 const TypeOopPtr* speculative() const { return _speculative; } |
| 0 | 884 |
| 885 virtual intptr_t get_con() const; | |
| 886 | |
| 887 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 888 | |
| 889 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 890 | |
| 223 | 891 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
| 0 | 892 |
| 893 // corresponding pointer to klass, for a given instance | |
| 894 const TypeKlassPtr* as_klass_type() const; | |
| 895 | |
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896 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 12966 | 897 // Return same type without a speculative part |
| 898 virtual const TypeOopPtr* remove_speculative() const; | |
| 0 | 899 |
| 12966 | 900 virtual const Type *xmeet(const Type *t) const; |
| 0 | 901 virtual const Type *xdual() const; // Compute dual right now. |
| 12966 | 902 // the core of the computation of the meet for TypeOopPtr and for its subclasses |
| 903 virtual const Type *xmeet_helper(const Type *t) const; | |
| 0 | 904 |
| 905 // Do not allow interface-vs.-noninterface joins to collapse to top. | |
| 906 virtual const Type *filter( const Type *kills ) const; | |
| 907 | |
| 908 // Convenience common pre-built type. | |
| 909 static const TypeOopPtr *BOTTOM; | |
| 910 #ifndef PRODUCT | |
| 911 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 912 #endif | |
| 12966 | 913 |
| 914 // Return the speculative type if any | |
| 915 ciKlass* speculative_type() const { | |
| 916 if (_speculative != NULL) { | |
| 917 const TypeOopPtr* speculative = _speculative->join(this)->is_oopptr(); | |
| 918 if (speculative->klass_is_exact()) { | |
| 919 return speculative->klass(); | |
| 920 } | |
| 921 } | |
| 922 return NULL; | |
| 923 } | |
| 0 | 924 }; |
| 925 | |
| 926 //------------------------------TypeInstPtr------------------------------------ | |
| 927 // Class of Java object pointers, pointing either to non-array Java instances | |
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928 // or to a Klass* (including array klasses). |
| 0 | 929 class TypeInstPtr : public TypeOopPtr { |
| 12966 | 930 TypeInstPtr(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id, const TypeOopPtr* speculative); |
| 0 | 931 virtual bool eq( const Type *t ) const; |
| 932 virtual int hash() const; // Type specific hashing | |
| 933 | |
| 934 ciSymbol* _name; // class name | |
| 935 | |
| 936 public: | |
| 937 ciSymbol* name() const { return _name; } | |
| 938 | |
| 939 bool is_loaded() const { return _klass->is_loaded(); } | |
| 940 | |
| 941 // Make a pointer to a constant oop. | |
| 942 static const TypeInstPtr *make(ciObject* o) { | |
| 12966 | 943 return make(TypePtr::Constant, o->klass(), true, o, 0, InstanceBot); |
| 0 | 944 } |
| 945 // Make a pointer to a constant oop with offset. | |
| 946 static const TypeInstPtr *make(ciObject* o, int offset) { | |
| 12966 | 947 return make(TypePtr::Constant, o->klass(), true, o, offset, InstanceBot); |
| 0 | 948 } |
| 949 | |
| 950 // Make a pointer to some value of type klass. | |
| 951 static const TypeInstPtr *make(PTR ptr, ciKlass* klass) { | |
| 12966 | 952 return make(ptr, klass, false, NULL, 0, InstanceBot); |
| 0 | 953 } |
| 954 | |
| 955 // Make a pointer to some non-polymorphic value of exactly type klass. | |
| 956 static const TypeInstPtr *make_exact(PTR ptr, ciKlass* klass) { | |
| 12966 | 957 return make(ptr, klass, true, NULL, 0, InstanceBot); |
| 0 | 958 } |
| 959 | |
| 960 // Make a pointer to some value of type klass with offset. | |
| 961 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, int offset) { | |
| 12966 | 962 return make(ptr, klass, false, NULL, offset, InstanceBot); |
| 0 | 963 } |
| 964 | |
| 965 // Make a pointer to an oop. | |
| 12966 | 966 static const TypeInstPtr *make(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id = InstanceBot, const TypeOopPtr* speculative = NULL); |
| 0 | 967 |
| 10278 | 968 /** Create constant type for a constant boxed value */ |
| 969 const Type* get_const_boxed_value() const; | |
| 970 | |
| 0 | 971 // If this is a java.lang.Class constant, return the type for it or NULL. |
| 972 // Pass to Type::get_const_type to turn it to a type, which will usually | |
| 973 // be a TypeInstPtr, but may also be a TypeInt::INT for int.class, etc. | |
| 974 ciType* java_mirror_type() const; | |
| 975 | |
| 976 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 977 | |
| 978 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 979 | |
| 223 | 980 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
| 0 | 981 |
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982 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 12966 | 983 // Return same type without a speculative part |
| 984 virtual const TypeOopPtr* remove_speculative() const; | |
| 0 | 985 |
| 12966 | 986 // the core of the computation of the meet of 2 types |
| 987 virtual const Type *xmeet_helper(const Type *t) const; | |
| 0 | 988 virtual const TypeInstPtr *xmeet_unloaded( const TypeInstPtr *t ) const; |
| 989 virtual const Type *xdual() const; // Compute dual right now. | |
| 990 | |
| 991 // Convenience common pre-built types. | |
| 992 static const TypeInstPtr *NOTNULL; | |
| 993 static const TypeInstPtr *BOTTOM; | |
| 994 static const TypeInstPtr *MIRROR; | |
| 995 static const TypeInstPtr *MARK; | |
| 996 static const TypeInstPtr *KLASS; | |
| 997 #ifndef PRODUCT | |
| 998 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 999 #endif | |
| 1000 }; | |
| 1001 | |
| 1002 //------------------------------TypeAryPtr------------------------------------- | |
| 1003 // Class of Java array pointers | |
| 1004 class TypeAryPtr : public TypeOopPtr { | |
| 10278 | 1005 TypeAryPtr( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, |
| 12966 | 1006 int offset, int instance_id, bool is_autobox_cache, const TypeOopPtr* speculative) |
| 1007 : TypeOopPtr(AryPtr,ptr,k,xk,o,offset, instance_id, speculative), | |
| 10278 | 1008 _ary(ary), |
| 1009 _is_autobox_cache(is_autobox_cache) | |
| 1010 { | |
| 1761 | 1011 #ifdef ASSERT |
| 1012 if (k != NULL) { | |
| 1013 // Verify that specified klass and TypeAryPtr::klass() follow the same rules. | |
| 1014 ciKlass* ck = compute_klass(true); | |
| 1792 | 1015 if (k != ck) { |
| 1761 | 1016 this->dump(); tty->cr(); |
| 1017 tty->print(" k: "); | |
| 1018 k->print(); tty->cr(); | |
| 1019 tty->print("ck: "); | |
| 1020 if (ck != NULL) ck->print(); | |
| 1021 else tty->print("<NULL>"); | |
| 1022 tty->cr(); | |
| 1023 assert(false, "unexpected TypeAryPtr::_klass"); | |
| 1024 } | |
| 1025 } | |
| 1026 #endif | |
| 1027 } | |
| 0 | 1028 virtual bool eq( const Type *t ) const; |
| 1029 virtual int hash() const; // Type specific hashing | |
| 1030 const TypeAry *_ary; // Array we point into | |
| 10278 | 1031 const bool _is_autobox_cache; |
| 0 | 1032 |
| 1761 | 1033 ciKlass* compute_klass(DEBUG_ONLY(bool verify = false)) const; |
| 1034 | |
| 0 | 1035 public: |
| 1036 // Accessors | |
| 1037 ciKlass* klass() const; | |
| 1038 const TypeAry* ary() const { return _ary; } | |
| 1039 const Type* elem() const { return _ary->_elem; } | |
| 1040 const TypeInt* size() const { return _ary->_size; } | |
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1041 bool is_stable() const { return _ary->_stable; } |
| 0 | 1042 |
| 10278 | 1043 bool is_autobox_cache() const { return _is_autobox_cache; } |
| 1044 | |
| 12966 | 1045 static const TypeAryPtr *make( PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id = InstanceBot, const TypeOopPtr* speculative = NULL); |
| 0 | 1046 // Constant pointer to array |
| 12966 | 1047 static const TypeAryPtr *make( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id = InstanceBot, const TypeOopPtr* speculative = NULL, bool is_autobox_cache = false); |
| 0 | 1048 |
| 1049 // Return a 'ptr' version of this type | |
| 1050 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 1051 | |
| 1052 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 1053 | |
| 223 | 1054 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
| 0 | 1055 |
| 1056 virtual const TypeAryPtr* cast_to_size(const TypeInt* size) const; | |
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1057 virtual const TypeInt* narrow_size_type(const TypeInt* size) const; |
| 0 | 1058 |
| 1059 virtual bool empty(void) const; // TRUE if type is vacuous | |
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1060 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 12966 | 1061 // Return same type without a speculative part |
| 1062 virtual const TypeOopPtr* remove_speculative() const; | |
| 0 | 1063 |
| 12966 | 1064 // the core of the computation of the meet of 2 types |
| 1065 virtual const Type *xmeet_helper(const Type *t) const; | |
| 0 | 1066 virtual const Type *xdual() const; // Compute dual right now. |
| 1067 | |
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1068 const TypeAryPtr* cast_to_stable(bool stable, int stable_dimension = 1) const; |
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1069 int stable_dimension() const; |
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1070 |
| 0 | 1071 // Convenience common pre-built types. |
| 1072 static const TypeAryPtr *RANGE; | |
| 1073 static const TypeAryPtr *OOPS; | |
| 163 | 1074 static const TypeAryPtr *NARROWOOPS; |
| 0 | 1075 static const TypeAryPtr *BYTES; |
| 1076 static const TypeAryPtr *SHORTS; | |
| 1077 static const TypeAryPtr *CHARS; | |
| 1078 static const TypeAryPtr *INTS; | |
| 1079 static const TypeAryPtr *LONGS; | |
| 1080 static const TypeAryPtr *FLOATS; | |
| 1081 static const TypeAryPtr *DOUBLES; | |
| 1082 // selects one of the above: | |
| 1083 static const TypeAryPtr *get_array_body_type(BasicType elem) { | |
| 1084 assert((uint)elem <= T_CONFLICT && _array_body_type[elem] != NULL, "bad elem type"); | |
| 1085 return _array_body_type[elem]; | |
| 1086 } | |
| 1087 static const TypeAryPtr *_array_body_type[T_CONFLICT+1]; | |
| 1088 // sharpen the type of an int which is used as an array size | |
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1089 #ifdef ASSERT |
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1090 // One type is interface, the other is oop |
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1091 virtual bool interface_vs_oop(const Type *t) const; |
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1092 #endif |
| 0 | 1093 #ifndef PRODUCT |
| 1094 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 1095 #endif | |
| 1096 }; | |
| 1097 | |
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1098 //------------------------------TypeMetadataPtr------------------------------------- |
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1099 // Some kind of metadata, either Method*, MethodData* or CPCacheOop |
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1100 class TypeMetadataPtr : public TypePtr { |
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1101 protected: |
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1102 TypeMetadataPtr(PTR ptr, ciMetadata* metadata, int offset); |
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1103 public: |
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1104 virtual bool eq( const Type *t ) const; |
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1105 virtual int hash() const; // Type specific hashing |
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1106 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1107 |
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1108 private: |
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1109 ciMetadata* _metadata; |
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1110 |
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1111 public: |
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1112 static const TypeMetadataPtr* make(PTR ptr, ciMetadata* m, int offset); |
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1113 |
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1114 static const TypeMetadataPtr* make(ciMethod* m); |
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1115 static const TypeMetadataPtr* make(ciMethodData* m); |
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1116 |
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1117 ciMetadata* metadata() const { return _metadata; } |
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1118 |
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1119 virtual const Type *cast_to_ptr_type(PTR ptr) const; |
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1120 |
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1121 virtual const TypePtr *add_offset( intptr_t offset ) const; |
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1122 |
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1123 virtual const Type *xmeet( const Type *t ) const; |
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1124 virtual const Type *xdual() const; // Compute dual right now. |
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1125 |
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1126 virtual intptr_t get_con() const; |
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1127 |
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1128 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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1129 virtual const Type *filter( const Type *kills ) const; |
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1130 |
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1131 // Convenience common pre-built types. |
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1132 static const TypeMetadataPtr *BOTTOM; |
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1133 |
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1134 #ifndef PRODUCT |
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1135 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1136 #endif |
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1137 }; |
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1138 |
| 0 | 1139 //------------------------------TypeKlassPtr----------------------------------- |
| 1140 // Class of Java Klass pointers | |
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1141 class TypeKlassPtr : public TypePtr { |
| 0 | 1142 TypeKlassPtr( PTR ptr, ciKlass* klass, int offset ); |
| 1143 | |
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1144 public: |
| 0 | 1145 virtual bool eq( const Type *t ) const; |
| 1146 virtual int hash() const; // Type specific hashing | |
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1147 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1148 private: |
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1149 |
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1150 static const TypeKlassPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); |
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1151 |
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1152 ciKlass* _klass; |
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1153 |
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1154 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) |
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1155 bool _klass_is_exact; |
| 0 | 1156 |
| 1157 public: | |
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1158 ciSymbol* name() const { return klass()->name(); } |
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1159 |
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1160 ciKlass* klass() const { return _klass; } |
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1161 bool klass_is_exact() const { return _klass_is_exact; } |
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1162 |
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1163 bool is_loaded() const { return klass()->is_loaded(); } |
| 0 | 1164 |
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1165 // Creates a type given a klass. Correctly handles multi-dimensional arrays |
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1166 // Respects UseUniqueSubclasses. |
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1167 // If the klass is final, the resulting type will be exact. |
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1168 static const TypeKlassPtr* make_from_klass(ciKlass* klass) { |
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1169 return make_from_klass_common(klass, true, false); |
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1170 } |
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1171 // Same as before, but will produce an exact type, even if |
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1172 // the klass is not final, as long as it has exactly one implementation. |
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1173 static const TypeKlassPtr* make_from_klass_unique(ciKlass* klass) { |
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1174 return make_from_klass_common(klass, true, true); |
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1175 } |
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1176 // Same as before, but does not respects UseUniqueSubclasses. |
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1177 // Use this only for creating array element types. |
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1178 static const TypeKlassPtr* make_from_klass_raw(ciKlass* klass) { |
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1179 return make_from_klass_common(klass, false, false); |
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1180 } |
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1181 |
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1182 // Make a generic (unclassed) pointer to metadata. |
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1183 static const TypeKlassPtr* make(PTR ptr, int offset); |
| 555 | 1184 |
| 0 | 1185 // ptr to klass 'k' |
| 1186 static const TypeKlassPtr *make( ciKlass* k ) { return make( TypePtr::Constant, k, 0); } | |
| 1187 // ptr to klass 'k' with offset | |
| 1188 static const TypeKlassPtr *make( ciKlass* k, int offset ) { return make( TypePtr::Constant, k, offset); } | |
| 1189 // ptr to klass 'k' or sub-klass | |
| 1190 static const TypeKlassPtr *make( PTR ptr, ciKlass* k, int offset); | |
| 1191 | |
| 1192 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 1193 | |
| 1194 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 1195 | |
| 1196 // corresponding pointer to instance, for a given class | |
| 1197 const TypeOopPtr* as_instance_type() const; | |
| 1198 | |
|
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1199 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 0 | 1200 virtual const Type *xmeet( const Type *t ) const; |
| 1201 virtual const Type *xdual() const; // Compute dual right now. | |
| 1202 | |
|
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1203 virtual intptr_t get_con() const; |
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1204 |
|
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1205 // Do not allow interface-vs.-noninterface joins to collapse to top. |
|
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1206 virtual const Type *filter( const Type *kills ) const; |
|
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1207 |
| 0 | 1208 // Convenience common pre-built types. |
| 1209 static const TypeKlassPtr* OBJECT; // Not-null object klass or below | |
| 1210 static const TypeKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same | |
| 1211 #ifndef PRODUCT | |
| 1212 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 1213 #endif | |
| 1214 }; | |
| 1215 | |
|
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1216 class TypeNarrowPtr : public Type { |
|
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1217 protected: |
|
827
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1218 const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR |
|
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1219 |
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1220 TypeNarrowPtr(TYPES t, const TypePtr* ptrtype): _ptrtype(ptrtype), |
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1221 Type(t) { |
|
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1222 assert(ptrtype->offset() == 0 || |
|
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1223 ptrtype->offset() == OffsetBot || |
|
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1224 ptrtype->offset() == OffsetTop, "no real offsets"); |
|
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1225 } |
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1226 |
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1227 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const = 0; |
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1228 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const = 0; |
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1229 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const = 0; |
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1230 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const = 0; |
|
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1231 public: |
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1232 virtual bool eq( const Type *t ) const; |
|
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1233 virtual int hash() const; // Type specific hashing |
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1234 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1235 |
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1236 virtual const Type *xmeet( const Type *t ) const; |
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1237 virtual const Type *xdual() const; // Compute dual right now. |
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1238 |
|
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1239 virtual intptr_t get_con() const; |
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1240 |
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1241 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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1242 virtual const Type *filter( const Type *kills ) const; |
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1243 |
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1244 virtual bool empty(void) const; // TRUE if type is vacuous |
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1245 |
|
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1246 // returns the equivalent ptr type for this compressed pointer |
|
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1247 const TypePtr *get_ptrtype() const { |
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1248 return _ptrtype; |
|
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1249 } |
|
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1250 |
|
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1251 #ifndef PRODUCT |
|
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1252 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
|
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1253 #endif |
|
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|
1254 }; |
|
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|
1255 |
|
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1256 //------------------------------TypeNarrowOop---------------------------------- |
|
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1257 // A compressed reference to some kind of Oop. This type wraps around |
|
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1258 // a preexisting TypeOopPtr and forwards most of it's operations to |
|
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|
1259 // the underlying type. It's only real purpose is to track the |
|
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1260 // oopness of the compressed oop value when we expose the conversion |
|
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1261 // between the normal and the compressed form. |
|
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|
1262 class TypeNarrowOop : public TypeNarrowPtr { |
|
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1263 protected: |
|
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1264 TypeNarrowOop( const TypePtr* ptrtype): TypeNarrowPtr(NarrowOop, ptrtype) { |
|
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1265 } |
|
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1266 |
|
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1267 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { |
|
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1268 return t->isa_narrowoop(); |
|
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|
1269 } |
|
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1270 |
|
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1271 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { |
|
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1272 return t->is_narrowoop(); |
|
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1273 } |
|
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1274 |
|
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1275 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { |
|
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1276 return new TypeNarrowOop(t); |
|
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1277 } |
|
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1278 |
|
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1279 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { |
|
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1280 return (const TypeNarrowPtr*)((new TypeNarrowOop(t))->hashcons()); |
|
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1281 } |
|
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1282 |
|
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1283 public: |
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1284 |
|
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1285 static const TypeNarrowOop *make( const TypePtr* type); |
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1286 |
|
2379
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|
1287 static const TypeNarrowOop* make_from_constant(ciObject* con, bool require_constant = false) { |
|
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1288 return make(TypeOopPtr::make_from_constant(con, require_constant)); |
|
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1289 } |
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1290 |
|
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1291 static const TypeNarrowOop *BOTTOM; |
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1292 static const TypeNarrowOop *NULL_PTR; |
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1293 |
|
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1294 #ifndef PRODUCT |
|
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1295 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1296 #endif |
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1297 }; |
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1298 |
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1299 //------------------------------TypeNarrowKlass---------------------------------- |
|
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1300 // A compressed reference to klass pointer. This type wraps around a |
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1301 // preexisting TypeKlassPtr and forwards most of it's operations to |
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1302 // the underlying type. |
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1303 class TypeNarrowKlass : public TypeNarrowPtr { |
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1304 protected: |
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1305 TypeNarrowKlass( const TypePtr* ptrtype): TypeNarrowPtr(NarrowKlass, ptrtype) { |
|
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1306 } |
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1307 |
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1308 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { |
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1309 return t->isa_narrowklass(); |
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1310 } |
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1311 |
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1312 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { |
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1313 return t->is_narrowklass(); |
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1314 } |
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1315 |
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1316 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { |
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1317 return new TypeNarrowKlass(t); |
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1318 } |
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1319 |
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1320 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { |
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1321 return (const TypeNarrowPtr*)((new TypeNarrowKlass(t))->hashcons()); |
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1322 } |
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1323 |
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1324 public: |
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1325 static const TypeNarrowKlass *make( const TypePtr* type); |
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1326 |
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1327 // static const TypeNarrowKlass *BOTTOM; |
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1328 static const TypeNarrowKlass *NULL_PTR; |
|
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1329 |
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1330 #ifndef PRODUCT |
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1331 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1332 #endif |
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1333 }; |
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1334 |
| 0 | 1335 //------------------------------TypeFunc--------------------------------------- |
| 1336 // Class of Array Types | |
| 1337 class TypeFunc : public Type { | |
| 1338 TypeFunc( const TypeTuple *domain, const TypeTuple *range ) : Type(Function), _domain(domain), _range(range) {} | |
| 1339 virtual bool eq( const Type *t ) const; | |
| 1340 virtual int hash() const; // Type specific hashing | |
| 1341 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 1342 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 1343 public: | |
| 1344 // Constants are shared among ADLC and VM | |
| 1345 enum { Control = AdlcVMDeps::Control, | |
| 1346 I_O = AdlcVMDeps::I_O, | |
| 1347 Memory = AdlcVMDeps::Memory, | |
| 1348 FramePtr = AdlcVMDeps::FramePtr, | |
| 1349 ReturnAdr = AdlcVMDeps::ReturnAdr, | |
| 1350 Parms = AdlcVMDeps::Parms | |
| 1351 }; | |
| 1352 | |
| 1353 const TypeTuple* const _domain; // Domain of inputs | |
| 1354 const TypeTuple* const _range; // Range of results | |
| 1355 | |
| 1356 // Accessors: | |
| 1357 const TypeTuple* domain() const { return _domain; } | |
| 1358 const TypeTuple* range() const { return _range; } | |
| 1359 | |
| 1360 static const TypeFunc *make(ciMethod* method); | |
| 1361 static const TypeFunc *make(ciSignature signature, const Type* extra); | |
| 1362 static const TypeFunc *make(const TypeTuple* domain, const TypeTuple* range); | |
| 1363 | |
| 1364 virtual const Type *xmeet( const Type *t ) const; | |
| 1365 virtual const Type *xdual() const; // Compute dual right now. | |
| 1366 | |
| 1367 BasicType return_type() const; | |
| 1368 | |
| 1369 #ifndef PRODUCT | |
| 1370 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 1371 #endif | |
| 1372 // Convenience common pre-built types. | |
| 1373 }; | |
| 1374 | |
| 1375 //------------------------------accessors-------------------------------------- | |
| 163 | 1376 inline bool Type::is_ptr_to_narrowoop() const { |
| 1377 #ifdef _LP64 | |
| 1378 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowoop_nv()); | |
| 1379 #else | |
| 1380 return false; | |
| 1381 #endif | |
| 1382 } | |
| 1383 | |
|
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1384 inline bool Type::is_ptr_to_narrowklass() const { |
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1385 #ifdef _LP64 |
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1386 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowklass_nv()); |
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1387 #else |
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1388 return false; |
|
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1389 #endif |
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1390 } |
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1391 |
| 0 | 1392 inline float Type::getf() const { |
| 1393 assert( _base == FloatCon, "Not a FloatCon" ); | |
| 1394 return ((TypeF*)this)->_f; | |
| 1395 } | |
| 1396 | |
| 1397 inline double Type::getd() const { | |
| 1398 assert( _base == DoubleCon, "Not a DoubleCon" ); | |
| 1399 return ((TypeD*)this)->_d; | |
| 1400 } | |
| 1401 | |
| 1402 inline const TypeInt *Type::is_int() const { | |
| 1403 assert( _base == Int, "Not an Int" ); | |
| 1404 return (TypeInt*)this; | |
| 1405 } | |
| 1406 | |
| 1407 inline const TypeInt *Type::isa_int() const { | |
| 1408 return ( _base == Int ? (TypeInt*)this : NULL); | |
| 1409 } | |
| 1410 | |
| 1411 inline const TypeLong *Type::is_long() const { | |
| 1412 assert( _base == Long, "Not a Long" ); | |
| 1413 return (TypeLong*)this; | |
| 1414 } | |
| 1415 | |
| 1416 inline const TypeLong *Type::isa_long() const { | |
| 1417 return ( _base == Long ? (TypeLong*)this : NULL); | |
| 1418 } | |
| 1419 | |
|
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1420 inline const TypeF *Type::isa_float() const { |
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1421 return ((_base == FloatTop || |
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1422 _base == FloatCon || |
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1423 _base == FloatBot) ? (TypeF*)this : NULL); |
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1424 } |
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1425 |
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1426 inline const TypeF *Type::is_float_constant() const { |
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1427 assert( _base == FloatCon, "Not a Float" ); |
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1428 return (TypeF*)this; |
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1429 } |
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1430 |
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1431 inline const TypeF *Type::isa_float_constant() const { |
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1432 return ( _base == FloatCon ? (TypeF*)this : NULL); |
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1433 } |
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1434 |
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1435 inline const TypeD *Type::isa_double() const { |
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1436 return ((_base == DoubleTop || |
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1437 _base == DoubleCon || |
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1438 _base == DoubleBot) ? (TypeD*)this : NULL); |
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1439 } |
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1440 |
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1441 inline const TypeD *Type::is_double_constant() const { |
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1442 assert( _base == DoubleCon, "Not a Double" ); |
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1443 return (TypeD*)this; |
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1444 } |
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1445 |
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1446 inline const TypeD *Type::isa_double_constant() const { |
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1447 return ( _base == DoubleCon ? (TypeD*)this : NULL); |
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1448 } |
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1449 |
| 0 | 1450 inline const TypeTuple *Type::is_tuple() const { |
| 1451 assert( _base == Tuple, "Not a Tuple" ); | |
| 1452 return (TypeTuple*)this; | |
| 1453 } | |
| 1454 | |
| 1455 inline const TypeAry *Type::is_ary() const { | |
| 1456 assert( _base == Array , "Not an Array" ); | |
| 1457 return (TypeAry*)this; | |
| 1458 } | |
| 1459 | |
|
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1460 inline const TypeVect *Type::is_vect() const { |
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1461 assert( _base >= VectorS && _base <= VectorY, "Not a Vector" ); |
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1462 return (TypeVect*)this; |
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1463 } |
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1464 |
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1465 inline const TypeVect *Type::isa_vect() const { |
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1466 return (_base >= VectorS && _base <= VectorY) ? (TypeVect*)this : NULL; |
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1467 } |
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1468 |
| 0 | 1469 inline const TypePtr *Type::is_ptr() const { |
| 1470 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
| 1471 assert(_base >= AnyPtr && _base <= KlassPtr, "Not a pointer"); | |
| 1472 return (TypePtr*)this; | |
| 1473 } | |
| 1474 | |
| 1475 inline const TypePtr *Type::isa_ptr() const { | |
| 1476 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
| 1477 return (_base >= AnyPtr && _base <= KlassPtr) ? (TypePtr*)this : NULL; | |
| 1478 } | |
| 1479 | |
| 1480 inline const TypeOopPtr *Type::is_oopptr() const { | |
| 1481 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
|
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1482 assert(_base >= OopPtr && _base <= AryPtr, "Not a Java pointer" ) ; |
| 0 | 1483 return (TypeOopPtr*)this; |
| 1484 } | |
| 1485 | |
| 1486 inline const TypeOopPtr *Type::isa_oopptr() const { | |
| 1487 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
|
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1488 return (_base >= OopPtr && _base <= AryPtr) ? (TypeOopPtr*)this : NULL; |
| 0 | 1489 } |
| 1490 | |
|
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1491 inline const TypeRawPtr *Type::isa_rawptr() const { |
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1492 return (_base == RawPtr) ? (TypeRawPtr*)this : NULL; |
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1493 } |
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1494 |
| 0 | 1495 inline const TypeRawPtr *Type::is_rawptr() const { |
| 1496 assert( _base == RawPtr, "Not a raw pointer" ); | |
| 1497 return (TypeRawPtr*)this; | |
| 1498 } | |
| 1499 | |
| 1500 inline const TypeInstPtr *Type::isa_instptr() const { | |
| 1501 return (_base == InstPtr) ? (TypeInstPtr*)this : NULL; | |
| 1502 } | |
| 1503 | |
| 1504 inline const TypeInstPtr *Type::is_instptr() const { | |
| 1505 assert( _base == InstPtr, "Not an object pointer" ); | |
| 1506 return (TypeInstPtr*)this; | |
| 1507 } | |
| 1508 | |
| 1509 inline const TypeAryPtr *Type::isa_aryptr() const { | |
| 1510 return (_base == AryPtr) ? (TypeAryPtr*)this : NULL; | |
| 1511 } | |
| 1512 | |
| 1513 inline const TypeAryPtr *Type::is_aryptr() const { | |
| 1514 assert( _base == AryPtr, "Not an array pointer" ); | |
| 1515 return (TypeAryPtr*)this; | |
| 1516 } | |
| 1517 | |
|
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1518 inline const TypeNarrowOop *Type::is_narrowoop() const { |
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1519 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
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1520 assert(_base == NarrowOop, "Not a narrow oop" ) ; |
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1521 return (TypeNarrowOop*)this; |
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1522 } |
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1523 |
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1524 inline const TypeNarrowOop *Type::isa_narrowoop() const { |
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1525 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
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1526 return (_base == NarrowOop) ? (TypeNarrowOop*)this : NULL; |
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1527 } |
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1528 |
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1529 inline const TypeNarrowKlass *Type::is_narrowklass() const { |
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1530 assert(_base == NarrowKlass, "Not a narrow oop" ) ; |
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1531 return (TypeNarrowKlass*)this; |
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1532 } |
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1533 |
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1534 inline const TypeNarrowKlass *Type::isa_narrowklass() const { |
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1535 return (_base == NarrowKlass) ? (TypeNarrowKlass*)this : NULL; |
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1536 } |
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1537 |
|
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1538 inline const TypeMetadataPtr *Type::is_metadataptr() const { |
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1539 // MetadataPtr is the first and CPCachePtr the last |
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1540 assert(_base == MetadataPtr, "Not a metadata pointer" ) ; |
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1541 return (TypeMetadataPtr*)this; |
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1542 } |
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1543 |
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1544 inline const TypeMetadataPtr *Type::isa_metadataptr() const { |
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1545 return (_base == MetadataPtr) ? (TypeMetadataPtr*)this : NULL; |
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1546 } |
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1547 |
| 0 | 1548 inline const TypeKlassPtr *Type::isa_klassptr() const { |
| 1549 return (_base == KlassPtr) ? (TypeKlassPtr*)this : NULL; | |
| 1550 } | |
| 1551 | |
| 1552 inline const TypeKlassPtr *Type::is_klassptr() const { | |
| 1553 assert( _base == KlassPtr, "Not a klass pointer" ); | |
| 1554 return (TypeKlassPtr*)this; | |
| 1555 } | |
| 1556 | |
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1557 inline const TypePtr* Type::make_ptr() const { |
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1558 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype() : |
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1559 ((_base == NarrowKlass) ? is_narrowklass()->get_ptrtype() : |
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1560 (isa_ptr() ? is_ptr() : NULL)); |
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1561 } |
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1562 |
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1563 inline const TypeOopPtr* Type::make_oopptr() const { |
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1564 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->is_oopptr() : is_oopptr(); |
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1565 } |
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1566 |
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1567 inline const TypeNarrowOop* Type::make_narrowoop() const { |
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1568 return (_base == NarrowOop) ? is_narrowoop() : |
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1569 (isa_ptr() ? TypeNarrowOop::make(is_ptr()) : NULL); |
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1570 } |
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1571 |
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1572 inline const TypeNarrowKlass* Type::make_narrowklass() const { |
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1573 return (_base == NarrowKlass) ? is_narrowklass() : |
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1574 (isa_ptr() ? TypeNarrowKlass::make(is_ptr()) : NULL); |
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1575 } |
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1576 |
| 0 | 1577 inline bool Type::is_floatingpoint() const { |
| 1578 if( (_base == FloatCon) || (_base == FloatBot) || | |
| 1579 (_base == DoubleCon) || (_base == DoubleBot) ) | |
| 1580 return true; | |
| 1581 return false; | |
| 1582 } | |
| 1583 | |
| 10278 | 1584 inline bool Type::is_ptr_to_boxing_obj() const { |
| 1585 const TypeInstPtr* tp = isa_instptr(); | |
| 1586 return (tp != NULL) && (tp->offset() == 0) && | |
| 1587 tp->klass()->is_instance_klass() && | |
| 1588 tp->klass()->as_instance_klass()->is_box_klass(); | |
| 1589 } | |
| 1590 | |
| 0 | 1591 |
| 1592 // =============================================================== | |
| 1593 // Things that need to be 64-bits in the 64-bit build but | |
| 1594 // 32-bits in the 32-bit build. Done this way to get full | |
| 1595 // optimization AND strong typing. | |
| 1596 #ifdef _LP64 | |
| 1597 | |
| 1598 // For type queries and asserts | |
| 1599 #define is_intptr_t is_long | |
| 1600 #define isa_intptr_t isa_long | |
| 1601 #define find_intptr_t_type find_long_type | |
| 1602 #define find_intptr_t_con find_long_con | |
| 1603 #define TypeX TypeLong | |
| 1604 #define Type_X Type::Long | |
| 1605 #define TypeX_X TypeLong::LONG | |
| 1606 #define TypeX_ZERO TypeLong::ZERO | |
| 1607 // For 'ideal_reg' machine registers | |
| 1608 #define Op_RegX Op_RegL | |
| 1609 // For phase->intcon variants | |
| 1610 #define MakeConX longcon | |
| 1611 #define ConXNode ConLNode | |
| 1612 // For array index arithmetic | |
| 1613 #define MulXNode MulLNode | |
| 1614 #define AndXNode AndLNode | |
| 1615 #define OrXNode OrLNode | |
| 1616 #define CmpXNode CmpLNode | |
| 1617 #define SubXNode SubLNode | |
| 1618 #define LShiftXNode LShiftLNode | |
| 1619 // For object size computation: | |
| 1620 #define AddXNode AddLNode | |
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1621 #define RShiftXNode RShiftLNode |
| 0 | 1622 // For card marks and hashcodes |
| 1623 #define URShiftXNode URShiftLNode | |
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1624 // UseOptoBiasInlining |
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1625 #define XorXNode XorLNode |
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1626 #define StoreXConditionalNode StoreLConditionalNode |
| 0 | 1627 // Opcodes |
| 1628 #define Op_LShiftX Op_LShiftL | |
| 1629 #define Op_AndX Op_AndL | |
| 1630 #define Op_AddX Op_AddL | |
| 1631 #define Op_SubX Op_SubL | |
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1632 #define Op_XorX Op_XorL |
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1633 #define Op_URShiftX Op_URShiftL |
| 0 | 1634 // conversions |
| 1635 #define ConvI2X(x) ConvI2L(x) | |
| 1636 #define ConvL2X(x) (x) | |
| 1637 #define ConvX2I(x) ConvL2I(x) | |
| 1638 #define ConvX2L(x) (x) | |
| 1639 | |
| 1640 #else | |
| 1641 | |
| 1642 // For type queries and asserts | |
| 1643 #define is_intptr_t is_int | |
| 1644 #define isa_intptr_t isa_int | |
| 1645 #define find_intptr_t_type find_int_type | |
| 1646 #define find_intptr_t_con find_int_con | |
| 1647 #define TypeX TypeInt | |
| 1648 #define Type_X Type::Int | |
| 1649 #define TypeX_X TypeInt::INT | |
| 1650 #define TypeX_ZERO TypeInt::ZERO | |
| 1651 // For 'ideal_reg' machine registers | |
| 1652 #define Op_RegX Op_RegI | |
| 1653 // For phase->intcon variants | |
| 1654 #define MakeConX intcon | |
| 1655 #define ConXNode ConINode | |
| 1656 // For array index arithmetic | |
| 1657 #define MulXNode MulINode | |
| 1658 #define AndXNode AndINode | |
| 1659 #define OrXNode OrINode | |
| 1660 #define CmpXNode CmpINode | |
| 1661 #define SubXNode SubINode | |
| 1662 #define LShiftXNode LShiftINode | |
| 1663 // For object size computation: | |
| 1664 #define AddXNode AddINode | |
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1665 #define RShiftXNode RShiftINode |
| 0 | 1666 // For card marks and hashcodes |
| 1667 #define URShiftXNode URShiftINode | |
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1668 // UseOptoBiasInlining |
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1669 #define XorXNode XorINode |
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1670 #define StoreXConditionalNode StoreIConditionalNode |
| 0 | 1671 // Opcodes |
| 1672 #define Op_LShiftX Op_LShiftI | |
| 1673 #define Op_AndX Op_AndI | |
| 1674 #define Op_AddX Op_AddI | |
| 1675 #define Op_SubX Op_SubI | |
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1676 #define Op_XorX Op_XorI |
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1677 #define Op_URShiftX Op_URShiftI |
| 0 | 1678 // conversions |
| 1679 #define ConvI2X(x) (x) | |
| 1680 #define ConvL2X(x) ConvL2I(x) | |
| 1681 #define ConvX2I(x) (x) | |
| 1682 #define ConvX2L(x) ConvI2L(x) | |
| 1683 | |
| 1684 #endif | |
| 1972 | 1685 |
| 1686 #endif // SHARE_VM_OPTO_TYPE_HPP |