Mercurial > hg > graal-compiler
annotate src/share/vm/opto/type.hpp @ 17810:62c54fcc0a35
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| author | kvn |
|---|---|
| date | Tue, 25 Mar 2014 17:07:36 -0700 |
| parents | 752ba2e5f6d0 9ab9f254cfe2 |
| children | 52b4284cb496 |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_OPTO_TYPE_HPP |
| 26 #define SHARE_VM_OPTO_TYPE_HPP | |
| 27 | |
| 28 #include "libadt/port.hpp" | |
| 29 #include "opto/adlcVMDeps.hpp" | |
| 30 #include "runtime/handles.hpp" | |
| 31 | |
| 0 | 32 // Portions of code courtesy of Clifford Click |
| 33 | |
| 34 // Optimization - Graph Style | |
| 35 | |
| 36 | |
| 37 // This class defines a Type lattice. The lattice is used in the constant | |
| 38 // propagation algorithms, and for some type-checking of the iloc code. | |
| 39 // Basic types include RSD's (lower bound, upper bound, stride for integers), | |
| 40 // float & double precision constants, sets of data-labels and code-labels. | |
| 41 // The complete lattice is described below. Subtypes have no relationship to | |
| 42 // up or down in the lattice; that is entirely determined by the behavior of | |
| 43 // the MEET/JOIN functions. | |
| 44 | |
| 45 class Dict; | |
| 46 class Type; | |
| 47 class TypeD; | |
| 48 class TypeF; | |
| 49 class TypeInt; | |
| 50 class TypeLong; | |
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51 class TypeNarrowPtr; |
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52 class TypeNarrowOop; |
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53 class TypeNarrowKlass; |
| 0 | 54 class TypeAry; |
| 55 class TypeTuple; | |
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56 class TypeVect; |
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57 class TypeVectS; |
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58 class TypeVectD; |
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59 class TypeVectX; |
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60 class TypeVectY; |
| 0 | 61 class TypePtr; |
| 62 class TypeRawPtr; | |
| 63 class TypeOopPtr; | |
| 64 class TypeInstPtr; | |
| 65 class TypeAryPtr; | |
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66 class TypeKlassPtr; |
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67 class TypeMetadataPtr; |
| 0 | 68 |
| 69 //------------------------------Type------------------------------------------- | |
| 70 // Basic Type object, represents a set of primitive Values. | |
| 71 // Types are hash-cons'd into a private class dictionary, so only one of each | |
| 72 // different kind of Type exists. Types are never modified after creation, so | |
| 73 // all their interesting fields are constant. | |
| 74 class Type { | |
| 3939 | 75 friend class VMStructs; |
| 76 | |
| 0 | 77 public: |
| 78 enum TYPES { | |
| 79 Bad=0, // Type check | |
| 80 Control, // Control of code (not in lattice) | |
| 81 Top, // Top of the lattice | |
| 82 Int, // Integer range (lo-hi) | |
| 83 Long, // Long integer range (lo-hi) | |
| 84 Half, // Placeholder half of doubleword | |
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85 NarrowOop, // Compressed oop pointer |
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86 NarrowKlass, // Compressed klass pointer |
| 0 | 87 |
| 88 Tuple, // Method signature or object layout | |
| 89 Array, // Array types | |
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90 VectorS, // 32bit Vector types |
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91 VectorD, // 64bit Vector types |
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92 VectorX, // 128bit Vector types |
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93 VectorY, // 256bit Vector types |
| 0 | 94 |
| 95 AnyPtr, // Any old raw, klass, inst, or array pointer | |
| 96 RawPtr, // Raw (non-oop) pointers | |
| 97 OopPtr, // Any and all Java heap entities | |
| 98 InstPtr, // Instance pointers (non-array objects) | |
| 99 AryPtr, // Array pointers | |
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100 // (Ptr order matters: See is_ptr, isa_ptr, is_oopptr, isa_oopptr.) |
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101 |
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102 MetadataPtr, // Generic metadata |
| 0 | 103 KlassPtr, // Klass pointers |
| 104 | |
| 105 Function, // Function signature | |
| 106 Abio, // Abstract I/O | |
| 107 Return_Address, // Subroutine return address | |
| 108 Memory, // Abstract store | |
| 109 FloatTop, // No float value | |
| 110 FloatCon, // Floating point constant | |
| 111 FloatBot, // Any float value | |
| 112 DoubleTop, // No double value | |
| 113 DoubleCon, // Double precision constant | |
| 114 DoubleBot, // Any double value | |
| 115 Bottom, // Bottom of lattice | |
| 116 lastype // Bogus ending type (not in lattice) | |
| 117 }; | |
| 118 | |
| 119 // Signal values for offsets from a base pointer | |
| 120 enum OFFSET_SIGNALS { | |
| 121 OffsetTop = -2000000000, // undefined offset | |
| 122 OffsetBot = -2000000001 // any possible offset | |
| 123 }; | |
| 124 | |
| 125 // Min and max WIDEN values. | |
| 126 enum WIDEN { | |
| 127 WidenMin = 0, | |
| 128 WidenMax = 3 | |
| 129 }; | |
| 130 | |
| 131 private: | |
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132 typedef struct { |
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133 const TYPES dual_type; |
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134 const BasicType basic_type; |
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135 const char* msg; |
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136 const bool isa_oop; |
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137 const int ideal_reg; |
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138 const relocInfo::relocType reloc; |
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139 } TypeInfo; |
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140 |
| 0 | 141 // Dictionary of types shared among compilations. |
| 142 static Dict* _shared_type_dict; | |
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143 static TypeInfo _type_info[]; |
| 0 | 144 |
| 145 static int uhash( const Type *const t ); | |
| 146 // Structural equality check. Assumes that cmp() has already compared | |
| 147 // the _base types and thus knows it can cast 't' appropriately. | |
| 148 virtual bool eq( const Type *t ) const; | |
| 149 | |
| 150 // Top-level hash-table of types | |
| 151 static Dict *type_dict() { | |
| 152 return Compile::current()->type_dict(); | |
| 153 } | |
| 154 | |
| 155 // DUAL operation: reflect around lattice centerline. Used instead of | |
| 156 // join to ensure my lattice is symmetric up and down. Dual is computed | |
| 157 // lazily, on demand, and cached in _dual. | |
| 158 const Type *_dual; // Cached dual value | |
| 159 // Table for efficient dualing of base types | |
| 160 static const TYPES dual_type[lastype]; | |
| 161 | |
| 12966 | 162 #ifdef ASSERT |
| 163 // One type is interface, the other is oop | |
| 164 virtual bool interface_vs_oop_helper(const Type *t) const; | |
| 165 #endif | |
| 166 | |
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167 const Type *meet_helper(const Type *t, bool include_speculative) const; |
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168 |
| 0 | 169 protected: |
| 170 // Each class of type is also identified by its base. | |
| 171 const TYPES _base; // Enum of Types type | |
| 172 | |
| 173 Type( TYPES t ) : _dual(NULL), _base(t) {} // Simple types | |
| 174 // ~Type(); // Use fast deallocation | |
| 175 const Type *hashcons(); // Hash-cons the type | |
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176 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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177 const Type *join_helper(const Type *t, bool include_speculative) const { |
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178 return dual()->meet_helper(t->dual(), include_speculative)->dual(); |
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179 } |
| 0 | 180 |
| 181 public: | |
| 182 | |
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183 inline void* operator new( size_t x ) throw() { |
| 0 | 184 Compile* compile = Compile::current(); |
| 185 compile->set_type_last_size(x); | |
| 186 void *temp = compile->type_arena()->Amalloc_D(x); | |
| 187 compile->set_type_hwm(temp); | |
| 188 return temp; | |
| 189 } | |
| 190 inline void operator delete( void* ptr ) { | |
| 191 Compile* compile = Compile::current(); | |
| 192 compile->type_arena()->Afree(ptr,compile->type_last_size()); | |
| 193 } | |
| 194 | |
| 195 // Initialize the type system for a particular compilation. | |
| 196 static void Initialize(Compile* compile); | |
| 197 | |
| 198 // Initialize the types shared by all compilations. | |
| 199 static void Initialize_shared(Compile* compile); | |
| 200 | |
| 201 TYPES base() const { | |
| 202 assert(_base > Bad && _base < lastype, "sanity"); | |
| 203 return _base; | |
| 204 } | |
| 205 | |
| 206 // Create a new hash-consd type | |
| 207 static const Type *make(enum TYPES); | |
| 208 // Test for equivalence of types | |
| 209 static int cmp( const Type *const t1, const Type *const t2 ); | |
| 210 // Test for higher or equal in lattice | |
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211 // Variant that drops the speculative part of the types |
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212 int higher_equal(const Type *t) const { |
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213 return !cmp(meet(t),t->remove_speculative()); |
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214 } |
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215 // Variant that keeps the speculative part of the types |
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216 int higher_equal_speculative(const Type *t) const { |
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217 return !cmp(meet_speculative(t),t); |
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218 } |
| 0 | 219 |
| 220 // MEET operation; lower in lattice. | |
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221 // Variant that drops the speculative part of the types |
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222 const Type *meet(const Type *t) const { |
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223 return meet_helper(t, false); |
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224 } |
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225 // Variant that keeps the speculative part of the types |
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226 const Type *meet_speculative(const Type *t) const { |
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227 return meet_helper(t, true); |
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228 } |
| 0 | 229 // WIDEN: 'widens' for Ints and other range types |
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230 virtual const Type *widen( const Type *old, const Type* limit ) const { return this; } |
| 0 | 231 // NARROW: complement for widen, used by pessimistic phases |
| 232 virtual const Type *narrow( const Type *old ) const { return this; } | |
| 233 | |
| 234 // DUAL operation: reflect around lattice centerline. Used instead of | |
| 235 // join to ensure my lattice is symmetric up and down. | |
| 236 const Type *dual() const { return _dual; } | |
| 237 | |
| 238 // Compute meet dependent on base type | |
| 239 virtual const Type *xmeet( const Type *t ) const; | |
| 240 virtual const Type *xdual() const; // Compute dual right now. | |
| 241 | |
| 242 // JOIN operation; higher in lattice. Done by finding the dual of the | |
| 243 // meet of the dual of the 2 inputs. | |
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244 // Variant that drops the speculative part of the types |
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245 const Type *join(const Type *t) const { |
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246 return join_helper(t, false); |
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247 } |
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248 // Variant that keeps the speculative part of the types |
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249 const Type *join_speculative(const Type *t) const { |
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250 return join_helper(t, true); |
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251 } |
| 0 | 252 |
| 253 // Modified version of JOIN adapted to the needs Node::Value. | |
| 254 // Normalizes all empty values to TOP. Does not kill _widen bits. | |
| 255 // Currently, it also works around limitations involving interface types. | |
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256 // Variant that drops the speculative part of the types |
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257 const Type *filter(const Type *kills) const { |
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258 return filter_helper(kills, false); |
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259 } |
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260 // Variant that keeps the speculative part of the types |
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261 const Type *filter_speculative(const Type *kills) const { |
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262 return filter_helper(kills, true); |
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263 } |
| 0 | 264 |
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265 #ifdef ASSERT |
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266 // One type is interface, the other is oop |
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267 virtual bool interface_vs_oop(const Type *t) const; |
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268 #endif |
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269 |
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270 // Returns true if this pointer points at memory which contains a |
| 163 | 271 // compressed oop references. |
| 272 bool is_ptr_to_narrowoop() const; | |
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273 bool is_ptr_to_narrowklass() const; |
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274 |
| 10278 | 275 bool is_ptr_to_boxing_obj() const; |
| 276 | |
| 277 | |
| 0 | 278 // Convenience access |
| 279 float getf() const; | |
| 280 double getd() const; | |
| 281 | |
| 282 const TypeInt *is_int() const; | |
| 283 const TypeInt *isa_int() const; // Returns NULL if not an Int | |
| 284 const TypeLong *is_long() const; | |
| 285 const TypeLong *isa_long() const; // Returns NULL if not a Long | |
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286 const TypeD *isa_double() const; // Returns NULL if not a Double{Top,Con,Bot} |
| 0 | 287 const TypeD *is_double_constant() const; // Asserts it is a DoubleCon |
| 288 const TypeD *isa_double_constant() const; // Returns NULL if not a DoubleCon | |
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289 const TypeF *isa_float() const; // Returns NULL if not a Float{Top,Con,Bot} |
| 0 | 290 const TypeF *is_float_constant() const; // Asserts it is a FloatCon |
| 291 const TypeF *isa_float_constant() const; // Returns NULL if not a FloatCon | |
| 292 const TypeTuple *is_tuple() const; // Collection of fields, NOT a pointer | |
| 293 const TypeAry *is_ary() const; // Array, NOT array pointer | |
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294 const TypeVect *is_vect() const; // Vector |
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295 const TypeVect *isa_vect() const; // Returns NULL if not a Vector |
| 0 | 296 const TypePtr *is_ptr() const; // Asserts it is a ptr type |
| 297 const TypePtr *isa_ptr() const; // Returns NULL if not ptr type | |
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298 const TypeRawPtr *isa_rawptr() const; // NOT Java oop |
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299 const TypeRawPtr *is_rawptr() const; // Asserts is rawptr |
| 163 | 300 const TypeNarrowOop *is_narrowoop() const; // Java-style GC'd pointer |
| 301 const TypeNarrowOop *isa_narrowoop() const; // Returns NULL if not oop ptr type | |
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302 const TypeNarrowKlass *is_narrowklass() const; // compressed klass pointer |
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303 const TypeNarrowKlass *isa_narrowklass() const;// Returns NULL if not oop ptr type |
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304 const TypeOopPtr *isa_oopptr() const; // Returns NULL if not oop ptr type |
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305 const TypeOopPtr *is_oopptr() const; // Java-style GC'd pointer |
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306 const TypeInstPtr *isa_instptr() const; // Returns NULL if not InstPtr |
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307 const TypeInstPtr *is_instptr() const; // Instance |
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308 const TypeAryPtr *isa_aryptr() const; // Returns NULL if not AryPtr |
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309 const TypeAryPtr *is_aryptr() const; // Array oop |
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310 |
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311 const TypeMetadataPtr *isa_metadataptr() const; // Returns NULL if not oop ptr type |
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312 const TypeMetadataPtr *is_metadataptr() const; // Java-style GC'd pointer |
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313 const TypeKlassPtr *isa_klassptr() const; // Returns NULL if not KlassPtr |
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314 const TypeKlassPtr *is_klassptr() const; // assert if not KlassPtr |
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315 |
| 0 | 316 virtual bool is_finite() const; // Has a finite value |
| 317 virtual bool is_nan() const; // Is not a number (NaN) | |
| 318 | |
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319 // Returns this ptr type or the equivalent ptr type for this compressed pointer. |
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320 const TypePtr* make_ptr() const; |
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321 |
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322 // Returns this oopptr type or the equivalent oopptr type for this compressed pointer. |
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323 // Asserts if the underlying type is not an oopptr or narrowoop. |
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324 const TypeOopPtr* make_oopptr() const; |
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325 |
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326 // Returns this compressed pointer or the equivalent compressed version |
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327 // of this pointer type. |
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328 const TypeNarrowOop* make_narrowoop() const; |
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329 |
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330 // Returns this compressed klass pointer or the equivalent |
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331 // compressed version of this pointer type. |
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332 const TypeNarrowKlass* make_narrowklass() const; |
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333 |
| 0 | 334 // Special test for register pressure heuristic |
| 335 bool is_floatingpoint() const; // True if Float or Double base type | |
| 336 | |
| 337 // Do you have memory, directly or through a tuple? | |
| 338 bool has_memory( ) const; | |
| 339 | |
| 340 // TRUE if type is a singleton | |
| 341 virtual bool singleton(void) const; | |
| 342 | |
| 343 // TRUE if type is above the lattice centerline, and is therefore vacuous | |
| 344 virtual bool empty(void) const; | |
| 345 | |
| 346 // Return a hash for this type. The hash function is public so ConNode | |
| 347 // (constants) can hash on their constant, which is represented by a Type. | |
| 348 virtual int hash() const; | |
| 349 | |
| 350 // Map ideal registers (machine types) to ideal types | |
| 351 static const Type *mreg2type[]; | |
| 352 | |
| 353 // Printing, statistics | |
| 354 #ifndef PRODUCT | |
| 355 void dump_on(outputStream *st) const; | |
| 356 void dump() const { | |
| 357 dump_on(tty); | |
| 358 } | |
| 359 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 360 static void dump_stats(); | |
| 361 #endif | |
| 362 void typerr(const Type *t) const; // Mixing types error | |
| 363 | |
| 364 // Create basic type | |
| 365 static const Type* get_const_basic_type(BasicType type) { | |
| 366 assert((uint)type <= T_CONFLICT && _const_basic_type[type] != NULL, "bad type"); | |
| 367 return _const_basic_type[type]; | |
| 368 } | |
| 369 | |
| 370 // Mapping to the array element's basic type. | |
| 371 BasicType array_element_basic_type() const; | |
| 372 | |
| 373 // Create standard type for a ciType: | |
| 374 static const Type* get_const_type(ciType* type); | |
| 375 | |
| 376 // Create standard zero value: | |
| 377 static const Type* get_zero_type(BasicType type) { | |
| 378 assert((uint)type <= T_CONFLICT && _zero_type[type] != NULL, "bad type"); | |
| 379 return _zero_type[type]; | |
| 380 } | |
| 381 | |
| 382 // Report if this is a zero value (not top). | |
| 383 bool is_zero_type() const { | |
| 384 BasicType type = basic_type(); | |
| 385 if (type == T_VOID || type >= T_CONFLICT) | |
| 386 return false; | |
| 387 else | |
| 388 return (this == _zero_type[type]); | |
| 389 } | |
| 390 | |
| 391 // Convenience common pre-built types. | |
| 392 static const Type *ABIO; | |
| 393 static const Type *BOTTOM; | |
| 394 static const Type *CONTROL; | |
| 395 static const Type *DOUBLE; | |
| 396 static const Type *FLOAT; | |
| 397 static const Type *HALF; | |
| 398 static const Type *MEMORY; | |
| 399 static const Type *MULTI; | |
| 400 static const Type *RETURN_ADDRESS; | |
| 401 static const Type *TOP; | |
| 402 | |
| 403 // Mapping from compiler type to VM BasicType | |
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404 BasicType basic_type() const { return _type_info[_base].basic_type; } |
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405 int ideal_reg() const { return _type_info[_base].ideal_reg; } |
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406 const char* msg() const { return _type_info[_base].msg; } |
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407 bool isa_oop_ptr() const { return _type_info[_base].isa_oop; } |
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408 relocInfo::relocType reloc() const { return _type_info[_base].reloc; } |
| 0 | 409 |
| 410 // Mapping from CI type system to compiler type: | |
| 411 static const Type* get_typeflow_type(ciType* type); | |
| 412 | |
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413 static const Type* make_from_constant(ciConstant constant, |
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414 bool require_constant = false, |
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415 bool is_autobox_cache = false); |
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416 |
| 12966 | 417 // Speculative type. See TypeInstPtr |
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418 virtual const TypeOopPtr* speculative() const { return NULL; } |
| 12966 | 419 virtual ciKlass* speculative_type() const { return NULL; } |
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420 const Type* maybe_remove_speculative(bool include_speculative) const; |
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421 virtual const Type* remove_speculative() const { return this; } |
| 12966 | 422 |
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423 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const { |
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424 return exact_kls != NULL; |
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425 } |
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426 |
| 0 | 427 private: |
| 428 // support arrays | |
| 429 static const BasicType _basic_type[]; | |
| 430 static const Type* _zero_type[T_CONFLICT+1]; | |
| 431 static const Type* _const_basic_type[T_CONFLICT+1]; | |
| 432 }; | |
| 433 | |
| 434 //------------------------------TypeF------------------------------------------ | |
| 435 // Class of Float-Constant Types. | |
| 436 class TypeF : public Type { | |
| 437 TypeF( float f ) : Type(FloatCon), _f(f) {}; | |
| 438 public: | |
| 439 virtual bool eq( const Type *t ) const; | |
| 440 virtual int hash() const; // Type specific hashing | |
| 441 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 442 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 443 public: | |
| 444 const float _f; // Float constant | |
| 445 | |
| 446 static const TypeF *make(float f); | |
| 447 | |
| 448 virtual bool is_finite() const; // Has a finite value | |
| 449 virtual bool is_nan() const; // Is not a number (NaN) | |
| 450 | |
| 451 virtual const Type *xmeet( const Type *t ) const; | |
| 452 virtual const Type *xdual() const; // Compute dual right now. | |
| 453 // Convenience common pre-built types. | |
| 454 static const TypeF *ZERO; // positive zero only | |
| 455 static const TypeF *ONE; | |
| 456 #ifndef PRODUCT | |
| 457 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 458 #endif | |
| 459 }; | |
| 460 | |
| 461 //------------------------------TypeD------------------------------------------ | |
| 462 // Class of Double-Constant Types. | |
| 463 class TypeD : public Type { | |
| 464 TypeD( double d ) : Type(DoubleCon), _d(d) {}; | |
| 465 public: | |
| 466 virtual bool eq( const Type *t ) const; | |
| 467 virtual int hash() const; // Type specific hashing | |
| 468 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 469 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 470 public: | |
| 471 const double _d; // Double constant | |
| 472 | |
| 473 static const TypeD *make(double d); | |
| 474 | |
| 475 virtual bool is_finite() const; // Has a finite value | |
| 476 virtual bool is_nan() const; // Is not a number (NaN) | |
| 477 | |
| 478 virtual const Type *xmeet( const Type *t ) const; | |
| 479 virtual const Type *xdual() const; // Compute dual right now. | |
| 480 // Convenience common pre-built types. | |
| 481 static const TypeD *ZERO; // positive zero only | |
| 482 static const TypeD *ONE; | |
| 483 #ifndef PRODUCT | |
| 484 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 485 #endif | |
| 486 }; | |
| 487 | |
| 488 //------------------------------TypeInt---------------------------------------- | |
| 489 // Class of integer ranges, the set of integers between a lower bound and an | |
| 490 // upper bound, inclusive. | |
| 491 class TypeInt : public Type { | |
| 492 TypeInt( jint lo, jint hi, int w ); | |
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493 protected: |
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494 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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495 |
| 0 | 496 public: |
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497 typedef jint NativeType; |
| 0 | 498 virtual bool eq( const Type *t ) const; |
| 499 virtual int hash() const; // Type specific hashing | |
| 500 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 501 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 502 const jint _lo, _hi; // Lower bound, upper bound | |
| 503 const short _widen; // Limit on times we widen this sucker | |
| 504 | |
| 505 static const TypeInt *make(jint lo); | |
| 506 // must always specify w | |
| 507 static const TypeInt *make(jint lo, jint hi, int w); | |
| 508 | |
| 509 // Check for single integer | |
| 510 int is_con() const { return _lo==_hi; } | |
| 511 bool is_con(int i) const { return is_con() && _lo == i; } | |
| 512 jint get_con() const { assert( is_con(), "" ); return _lo; } | |
| 513 | |
| 514 virtual bool is_finite() const; // Has a finite value | |
| 515 | |
| 516 virtual const Type *xmeet( const Type *t ) const; | |
| 517 virtual const Type *xdual() const; // Compute dual right now. | |
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518 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
| 0 | 519 virtual const Type *narrow( const Type *t ) const; |
| 520 // Do not kill _widen bits. | |
| 521 // Convenience common pre-built types. | |
| 522 static const TypeInt *MINUS_1; | |
| 523 static const TypeInt *ZERO; | |
| 524 static const TypeInt *ONE; | |
| 525 static const TypeInt *BOOL; | |
| 526 static const TypeInt *CC; | |
| 527 static const TypeInt *CC_LT; // [-1] == MINUS_1 | |
| 528 static const TypeInt *CC_GT; // [1] == ONE | |
| 529 static const TypeInt *CC_EQ; // [0] == ZERO | |
| 530 static const TypeInt *CC_LE; // [-1,0] | |
| 531 static const TypeInt *CC_GE; // [0,1] == BOOL (!) | |
| 532 static const TypeInt *BYTE; | |
| 624 | 533 static const TypeInt *UBYTE; |
| 0 | 534 static const TypeInt *CHAR; |
| 535 static const TypeInt *SHORT; | |
| 536 static const TypeInt *POS; | |
| 537 static const TypeInt *POS1; | |
| 538 static const TypeInt *INT; | |
| 539 static const TypeInt *SYMINT; // symmetric range [-max_jint..max_jint] | |
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540 static const TypeInt *TYPE_DOMAIN; // alias for TypeInt::INT |
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541 |
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542 static const TypeInt *as_self(const Type *t) { return t->is_int(); } |
| 0 | 543 #ifndef PRODUCT |
| 544 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 545 #endif | |
| 546 }; | |
| 547 | |
| 548 | |
| 549 //------------------------------TypeLong--------------------------------------- | |
| 550 // Class of long integer ranges, the set of integers between a lower bound and | |
| 551 // an upper bound, inclusive. | |
| 552 class TypeLong : public Type { | |
| 553 TypeLong( jlong lo, jlong hi, int w ); | |
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554 protected: |
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555 // Do not kill _widen bits. |
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556 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
| 0 | 557 public: |
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558 typedef jlong NativeType; |
| 0 | 559 virtual bool eq( const Type *t ) const; |
| 560 virtual int hash() const; // Type specific hashing | |
| 561 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 562 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 563 public: | |
| 564 const jlong _lo, _hi; // Lower bound, upper bound | |
| 565 const short _widen; // Limit on times we widen this sucker | |
| 566 | |
| 567 static const TypeLong *make(jlong lo); | |
| 568 // must always specify w | |
| 569 static const TypeLong *make(jlong lo, jlong hi, int w); | |
| 570 | |
| 571 // Check for single integer | |
| 572 int is_con() const { return _lo==_hi; } | |
| 145 | 573 bool is_con(int i) const { return is_con() && _lo == i; } |
| 0 | 574 jlong get_con() const { assert( is_con(), "" ); return _lo; } |
| 575 | |
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576 // Check for positive 32-bit value. |
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577 int is_positive_int() const { return _lo >= 0 && _hi <= (jlong)max_jint; } |
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578 |
| 0 | 579 virtual bool is_finite() const; // Has a finite value |
| 580 | |
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581 |
| 0 | 582 virtual const Type *xmeet( const Type *t ) const; |
| 583 virtual const Type *xdual() const; // Compute dual right now. | |
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584 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
| 0 | 585 virtual const Type *narrow( const Type *t ) const; |
| 586 // Convenience common pre-built types. | |
| 587 static const TypeLong *MINUS_1; | |
| 588 static const TypeLong *ZERO; | |
| 589 static const TypeLong *ONE; | |
| 590 static const TypeLong *POS; | |
| 591 static const TypeLong *LONG; | |
| 592 static const TypeLong *INT; // 32-bit subrange [min_jint..max_jint] | |
| 593 static const TypeLong *UINT; // 32-bit unsigned [0..max_juint] | |
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594 static const TypeLong *TYPE_DOMAIN; // alias for TypeLong::LONG |
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595 |
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596 // static convenience methods. |
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597 static const TypeLong *as_self(const Type *t) { return t->is_long(); } |
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598 |
| 0 | 599 #ifndef PRODUCT |
| 600 virtual void dump2( Dict &d, uint, outputStream *st ) const;// Specialized per-Type dumping | |
| 601 #endif | |
| 602 }; | |
| 603 | |
| 604 //------------------------------TypeTuple-------------------------------------- | |
| 605 // Class of Tuple Types, essentially type collections for function signatures | |
| 606 // and class layouts. It happens to also be a fast cache for the HotSpot | |
| 607 // signature types. | |
| 608 class TypeTuple : public Type { | |
| 609 TypeTuple( uint cnt, const Type **fields ) : Type(Tuple), _cnt(cnt), _fields(fields) { } | |
| 610 public: | |
| 611 virtual bool eq( const Type *t ) const; | |
| 612 virtual int hash() const; // Type specific hashing | |
| 613 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 614 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 615 | |
| 616 public: | |
| 617 const uint _cnt; // Count of fields | |
| 618 const Type ** const _fields; // Array of field types | |
| 619 | |
| 620 // Accessors: | |
| 621 uint cnt() const { return _cnt; } | |
| 622 const Type* field_at(uint i) const { | |
| 623 assert(i < _cnt, "oob"); | |
| 624 return _fields[i]; | |
| 625 } | |
| 626 void set_field_at(uint i, const Type* t) { | |
| 627 assert(i < _cnt, "oob"); | |
| 628 _fields[i] = t; | |
| 629 } | |
| 630 | |
| 631 static const TypeTuple *make( uint cnt, const Type **fields ); | |
| 632 static const TypeTuple *make_range(ciSignature *sig); | |
| 633 static const TypeTuple *make_domain(ciInstanceKlass* recv, ciSignature *sig); | |
| 634 | |
| 635 // Subroutine call type with space allocated for argument types | |
| 636 static const Type **fields( uint arg_cnt ); | |
| 637 | |
| 638 virtual const Type *xmeet( const Type *t ) const; | |
| 639 virtual const Type *xdual() const; // Compute dual right now. | |
| 640 // Convenience common pre-built types. | |
| 641 static const TypeTuple *IFBOTH; | |
| 642 static const TypeTuple *IFFALSE; | |
| 643 static const TypeTuple *IFTRUE; | |
| 644 static const TypeTuple *IFNEITHER; | |
| 645 static const TypeTuple *LOOPBODY; | |
| 646 static const TypeTuple *MEMBAR; | |
| 647 static const TypeTuple *STORECONDITIONAL; | |
| 648 static const TypeTuple *START_I2C; | |
| 649 static const TypeTuple *INT_PAIR; | |
| 650 static const TypeTuple *LONG_PAIR; | |
| 12323 | 651 static const TypeTuple *INT_CC_PAIR; |
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652 static const TypeTuple *LONG_CC_PAIR; |
| 0 | 653 #ifndef PRODUCT |
| 654 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
| 655 #endif | |
| 656 }; | |
| 657 | |
| 658 //------------------------------TypeAry---------------------------------------- | |
| 659 // Class of Array Types | |
| 660 class TypeAry : public Type { | |
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661 TypeAry(const Type* elem, const TypeInt* size, bool stable) : Type(Array), |
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662 _elem(elem), _size(size), _stable(stable) {} |
| 0 | 663 public: |
| 664 virtual bool eq( const Type *t ) const; | |
| 665 virtual int hash() const; // Type specific hashing | |
| 666 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 667 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 668 | |
| 669 private: | |
| 670 const Type *_elem; // Element type of array | |
| 671 const TypeInt *_size; // Elements in array | |
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672 const bool _stable; // Are elements @Stable? |
| 0 | 673 friend class TypeAryPtr; |
| 674 | |
| 675 public: | |
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676 static const TypeAry* make(const Type* elem, const TypeInt* size, bool stable = false); |
| 0 | 677 |
| 678 virtual const Type *xmeet( const Type *t ) const; | |
| 679 virtual const Type *xdual() const; // Compute dual right now. | |
| 680 bool ary_must_be_exact() const; // true if arrays of such are never generic | |
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681 virtual const Type* remove_speculative() const; |
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682 #ifdef ASSERT |
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683 // One type is interface, the other is oop |
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684 virtual bool interface_vs_oop(const Type *t) const; |
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685 #endif |
| 0 | 686 #ifndef PRODUCT |
| 687 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
| 688 #endif | |
| 689 }; | |
| 690 | |
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691 //------------------------------TypeVect--------------------------------------- |
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692 // Class of Vector Types |
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693 class TypeVect : public Type { |
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694 const Type* _elem; // Vector's element type |
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695 const uint _length; // Elements in vector (power of 2) |
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696 |
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697 protected: |
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698 TypeVect(TYPES t, const Type* elem, uint length) : Type(t), |
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699 _elem(elem), _length(length) {} |
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700 |
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701 public: |
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702 const Type* element_type() const { return _elem; } |
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703 BasicType element_basic_type() const { return _elem->array_element_basic_type(); } |
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704 uint length() const { return _length; } |
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705 uint length_in_bytes() const { |
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706 return _length * type2aelembytes(element_basic_type()); |
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707 } |
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708 |
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709 virtual bool eq(const Type *t) const; |
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710 virtual int hash() const; // Type specific hashing |
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711 virtual bool singleton(void) const; // TRUE if type is a singleton |
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712 virtual bool empty(void) const; // TRUE if type is vacuous |
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713 |
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714 static const TypeVect *make(const BasicType elem_bt, uint length) { |
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715 // Use bottom primitive type. |
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716 return make(get_const_basic_type(elem_bt), length); |
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717 } |
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718 // Used directly by Replicate nodes to construct singleton vector. |
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719 static const TypeVect *make(const Type* elem, uint length); |
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720 |
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721 virtual const Type *xmeet( const Type *t) const; |
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722 virtual const Type *xdual() const; // Compute dual right now. |
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723 |
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724 static const TypeVect *VECTS; |
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725 static const TypeVect *VECTD; |
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726 static const TypeVect *VECTX; |
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727 static const TypeVect *VECTY; |
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728 |
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729 #ifndef PRODUCT |
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730 virtual void dump2(Dict &d, uint, outputStream *st) const; // Specialized per-Type dumping |
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731 #endif |
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732 }; |
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733 |
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734 class TypeVectS : public TypeVect { |
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735 friend class TypeVect; |
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736 TypeVectS(const Type* elem, uint length) : TypeVect(VectorS, elem, length) {} |
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737 }; |
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738 |
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739 class TypeVectD : public TypeVect { |
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740 friend class TypeVect; |
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741 TypeVectD(const Type* elem, uint length) : TypeVect(VectorD, elem, length) {} |
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742 }; |
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743 |
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744 class TypeVectX : public TypeVect { |
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745 friend class TypeVect; |
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746 TypeVectX(const Type* elem, uint length) : TypeVect(VectorX, elem, length) {} |
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747 }; |
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748 |
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749 class TypeVectY : public TypeVect { |
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750 friend class TypeVect; |
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751 TypeVectY(const Type* elem, uint length) : TypeVect(VectorY, elem, length) {} |
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752 }; |
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753 |
| 0 | 754 //------------------------------TypePtr---------------------------------------- |
| 755 // Class of machine Pointer Types: raw data, instances or arrays. | |
| 756 // If the _base enum is AnyPtr, then this refers to all of the above. | |
| 757 // Otherwise the _base will indicate which subset of pointers is affected, | |
| 758 // and the class will be inherited from. | |
| 759 class TypePtr : public Type { | |
|
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760 friend class TypeNarrowPtr; |
| 0 | 761 public: |
| 762 enum PTR { TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, lastPTR }; | |
| 763 protected: | |
| 764 TypePtr( TYPES t, PTR ptr, int offset ) : Type(t), _ptr(ptr), _offset(offset) {} | |
| 765 virtual bool eq( const Type *t ) const; | |
| 766 virtual int hash() const; // Type specific hashing | |
| 767 static const PTR ptr_meet[lastPTR][lastPTR]; | |
| 768 static const PTR ptr_dual[lastPTR]; | |
| 769 static const char * const ptr_msg[lastPTR]; | |
| 770 | |
| 771 public: | |
| 772 const int _offset; // Offset into oop, with TOP & BOT | |
| 773 const PTR _ptr; // Pointer equivalence class | |
| 774 | |
| 775 const int offset() const { return _offset; } | |
| 776 const PTR ptr() const { return _ptr; } | |
| 777 | |
| 778 static const TypePtr *make( TYPES t, PTR ptr, int offset ); | |
| 779 | |
| 780 // Return a 'ptr' version of this type | |
| 781 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 782 | |
| 783 virtual intptr_t get_con() const; | |
| 784 | |
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785 int xadd_offset( intptr_t offset ) const; |
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786 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 0 | 787 |
| 788 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 789 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 790 virtual const Type *xmeet( const Type *t ) const; | |
| 791 int meet_offset( int offset ) const; | |
| 792 int dual_offset( ) const; | |
| 793 virtual const Type *xdual() const; // Compute dual right now. | |
| 794 | |
| 795 // meet, dual and join over pointer equivalence sets | |
| 796 PTR meet_ptr( const PTR in_ptr ) const { return ptr_meet[in_ptr][ptr()]; } | |
| 797 PTR dual_ptr() const { return ptr_dual[ptr()]; } | |
| 798 | |
| 799 // This is textually confusing unless one recalls that | |
| 800 // join(t) == dual()->meet(t->dual())->dual(). | |
| 801 PTR join_ptr( const PTR in_ptr ) const { | |
| 802 return ptr_dual[ ptr_meet[ ptr_dual[in_ptr] ] [ dual_ptr() ] ]; | |
| 803 } | |
| 804 | |
| 805 // Tests for relation to centerline of type lattice: | |
| 806 static bool above_centerline(PTR ptr) { return (ptr <= AnyNull); } | |
| 807 static bool below_centerline(PTR ptr) { return (ptr >= NotNull); } | |
| 808 // Convenience common pre-built types. | |
| 809 static const TypePtr *NULL_PTR; | |
| 810 static const TypePtr *NOTNULL; | |
| 811 static const TypePtr *BOTTOM; | |
| 812 #ifndef PRODUCT | |
| 813 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 814 #endif | |
| 815 }; | |
| 816 | |
| 817 //------------------------------TypeRawPtr------------------------------------- | |
| 818 // Class of raw pointers, pointers to things other than Oops. Examples | |
| 819 // include the stack pointer, top of heap, card-marking area, handles, etc. | |
| 820 class TypeRawPtr : public TypePtr { | |
| 821 protected: | |
| 822 TypeRawPtr( PTR ptr, address bits ) : TypePtr(RawPtr,ptr,0), _bits(bits){} | |
| 823 public: | |
| 824 virtual bool eq( const Type *t ) const; | |
| 825 virtual int hash() const; // Type specific hashing | |
| 826 | |
| 827 const address _bits; // Constant value, if applicable | |
| 828 | |
| 829 static const TypeRawPtr *make( PTR ptr ); | |
| 830 static const TypeRawPtr *make( address bits ); | |
| 831 | |
| 832 // Return a 'ptr' version of this type | |
| 833 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 834 | |
| 835 virtual intptr_t get_con() const; | |
| 836 | |
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837 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 0 | 838 |
| 839 virtual const Type *xmeet( const Type *t ) const; | |
| 840 virtual const Type *xdual() const; // Compute dual right now. | |
| 841 // Convenience common pre-built types. | |
| 842 static const TypeRawPtr *BOTTOM; | |
| 843 static const TypeRawPtr *NOTNULL; | |
| 844 #ifndef PRODUCT | |
| 845 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 846 #endif | |
| 847 }; | |
| 848 | |
| 849 //------------------------------TypeOopPtr------------------------------------- | |
| 850 // Some kind of oop (Java pointer), either klass or instance or array. | |
| 851 class TypeOopPtr : public TypePtr { | |
| 852 protected: | |
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853 TypeOopPtr(TYPES t, PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id, const TypeOopPtr* speculative, int inline_depth); |
| 0 | 854 public: |
| 855 virtual bool eq( const Type *t ) const; | |
| 856 virtual int hash() const; // Type specific hashing | |
| 857 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 858 enum { | |
| 223 | 859 InstanceTop = -1, // undefined instance |
| 860 InstanceBot = 0 // any possible instance | |
| 0 | 861 }; |
| 862 protected: | |
| 863 | |
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864 enum { |
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865 InlineDepthBottom = INT_MAX, |
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866 InlineDepthTop = -InlineDepthBottom |
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867 }; |
| 0 | 868 // Oop is NULL, unless this is a constant oop. |
| 869 ciObject* _const_oop; // Constant oop | |
| 870 // If _klass is NULL, then so is _sig. This is an unloaded klass. | |
| 871 ciKlass* _klass; // Klass object | |
| 872 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) | |
| 873 bool _klass_is_exact; | |
| 163 | 874 bool _is_ptr_to_narrowoop; |
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875 bool _is_ptr_to_narrowklass; |
| 10278 | 876 bool _is_ptr_to_boxed_value; |
| 0 | 877 |
| 223 | 878 // If not InstanceTop or InstanceBot, indicates that this is |
| 879 // a particular instance of this type which is distinct. | |
| 880 // This is the the node index of the allocation node creating this instance. | |
| 881 int _instance_id; | |
| 0 | 882 |
| 12966 | 883 // Extra type information profiling gave us. We propagate it the |
| 884 // same way the rest of the type info is propagated. If we want to | |
| 885 // use it, then we have to emit a guard: this part of the type is | |
| 886 // not something we know but something we speculate about the type. | |
| 887 const TypeOopPtr* _speculative; | |
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888 // For speculative types, we record at what inlining depth the |
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889 // profiling point that provided the data is. We want to favor |
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890 // profile data coming from outer scopes which are likely better for |
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891 // the current compilation. |
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892 int _inline_depth; |
| 12966 | 893 |
| 0 | 894 static const TypeOopPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); |
| 895 | |
| 223 | 896 int dual_instance_id() const; |
| 897 int meet_instance_id(int uid) const; | |
| 0 | 898 |
| 12966 | 899 // utility methods to work on the speculative part of the type |
| 900 const TypeOopPtr* dual_speculative() const; | |
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901 const TypeOopPtr* xmeet_speculative(const TypeOopPtr* other) const; |
| 12966 | 902 bool eq_speculative(const TypeOopPtr* other) const; |
| 903 int hash_speculative() const; | |
| 904 const TypeOopPtr* add_offset_speculative(intptr_t offset) const; | |
| 905 #ifndef PRODUCT | |
| 906 void dump_speculative(outputStream *st) const; | |
| 907 #endif | |
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908 // utility methods to work on the inline depth of the type |
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909 int dual_inline_depth() const; |
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910 int meet_inline_depth(int depth) const; |
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911 #ifndef PRODUCT |
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912 void dump_inline_depth(outputStream *st) const; |
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913 #endif |
| 12966 | 914 |
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915 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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916 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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917 |
| 0 | 918 public: |
| 919 // Creates a type given a klass. Correctly handles multi-dimensional arrays | |
| 920 // Respects UseUniqueSubclasses. | |
| 921 // If the klass is final, the resulting type will be exact. | |
| 922 static const TypeOopPtr* make_from_klass(ciKlass* klass) { | |
| 923 return make_from_klass_common(klass, true, false); | |
| 924 } | |
| 925 // Same as before, but will produce an exact type, even if | |
| 926 // the klass is not final, as long as it has exactly one implementation. | |
| 927 static const TypeOopPtr* make_from_klass_unique(ciKlass* klass) { | |
| 928 return make_from_klass_common(klass, true, true); | |
| 929 } | |
| 930 // Same as before, but does not respects UseUniqueSubclasses. | |
| 931 // Use this only for creating array element types. | |
| 932 static const TypeOopPtr* make_from_klass_raw(ciKlass* klass) { | |
| 933 return make_from_klass_common(klass, false, false); | |
| 934 } | |
| 935 // Creates a singleton type given an object. | |
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936 // If the object cannot be rendered as a constant, |
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937 // may return a non-singleton type. |
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938 // If require_constant, produce a NULL if a singleton is not possible. |
| 10278 | 939 static const TypeOopPtr* make_from_constant(ciObject* o, |
| 940 bool require_constant = false, | |
| 941 bool not_null_elements = false); | |
| 0 | 942 |
| 943 // Make a generic (unclassed) pointer to an oop. | |
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944 static const TypeOopPtr* make(PTR ptr, int offset, int instance_id, const TypeOopPtr* speculative = NULL, int inline_depth = InlineDepthBottom); |
| 0 | 945 |
| 946 ciObject* const_oop() const { return _const_oop; } | |
| 947 virtual ciKlass* klass() const { return _klass; } | |
| 948 bool klass_is_exact() const { return _klass_is_exact; } | |
| 163 | 949 |
| 950 // Returns true if this pointer points at memory which contains a | |
| 951 // compressed oop references. | |
| 952 bool is_ptr_to_narrowoop_nv() const { return _is_ptr_to_narrowoop; } | |
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953 bool is_ptr_to_narrowklass_nv() const { return _is_ptr_to_narrowklass; } |
| 10278 | 954 bool is_ptr_to_boxed_value() const { return _is_ptr_to_boxed_value; } |
| 223 | 955 bool is_known_instance() const { return _instance_id > 0; } |
| 956 int instance_id() const { return _instance_id; } | |
| 957 bool is_known_instance_field() const { return is_known_instance() && _offset >= 0; } | |
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958 virtual const TypeOopPtr* speculative() const { return _speculative; } |
| 0 | 959 |
| 960 virtual intptr_t get_con() const; | |
| 961 | |
| 962 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 963 | |
| 964 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 965 | |
| 223 | 966 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
| 0 | 967 |
| 968 // corresponding pointer to klass, for a given instance | |
| 969 const TypeKlassPtr* as_klass_type() const; | |
| 970 | |
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971 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 12966 | 972 // Return same type without a speculative part |
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973 virtual const Type* remove_speculative() const; |
| 0 | 974 |
| 12966 | 975 virtual const Type *xmeet(const Type *t) const; |
| 0 | 976 virtual const Type *xdual() const; // Compute dual right now. |
| 12966 | 977 // the core of the computation of the meet for TypeOopPtr and for its subclasses |
| 978 virtual const Type *xmeet_helper(const Type *t) const; | |
| 0 | 979 |
| 980 // Convenience common pre-built type. | |
| 981 static const TypeOopPtr *BOTTOM; | |
| 982 #ifndef PRODUCT | |
| 983 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 984 #endif | |
| 12966 | 985 |
| 986 // Return the speculative type if any | |
| 987 ciKlass* speculative_type() const { | |
| 988 if (_speculative != NULL) { | |
| 989 const TypeOopPtr* speculative = _speculative->join(this)->is_oopptr(); | |
| 990 if (speculative->klass_is_exact()) { | |
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991 return speculative->klass(); |
| 12966 | 992 } |
| 993 } | |
| 994 return NULL; | |
| 995 } | |
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996 int inline_depth() const { |
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997 return _inline_depth; |
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998 } |
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999 virtual const TypeOopPtr* with_inline_depth(int depth) const; |
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1000 virtual bool would_improve_type(ciKlass* exact_kls, int inline_depth) const; |
| 0 | 1001 }; |
| 1002 | |
| 1003 //------------------------------TypeInstPtr------------------------------------ | |
| 1004 // Class of Java object pointers, pointing either to non-array Java instances | |
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1005 // or to a Klass* (including array klasses). |
| 0 | 1006 class TypeInstPtr : public TypeOopPtr { |
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1007 TypeInstPtr(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id, const TypeOopPtr* speculative, int inline_depth); |
| 0 | 1008 virtual bool eq( const Type *t ) const; |
| 1009 virtual int hash() const; // Type specific hashing | |
| 1010 | |
| 1011 ciSymbol* _name; // class name | |
| 1012 | |
| 1013 public: | |
| 1014 ciSymbol* name() const { return _name; } | |
| 1015 | |
| 1016 bool is_loaded() const { return _klass->is_loaded(); } | |
| 1017 | |
| 1018 // Make a pointer to a constant oop. | |
| 1019 static const TypeInstPtr *make(ciObject* o) { | |
| 12966 | 1020 return make(TypePtr::Constant, o->klass(), true, o, 0, InstanceBot); |
| 0 | 1021 } |
| 1022 // Make a pointer to a constant oop with offset. | |
| 1023 static const TypeInstPtr *make(ciObject* o, int offset) { | |
| 12966 | 1024 return make(TypePtr::Constant, o->klass(), true, o, offset, InstanceBot); |
| 0 | 1025 } |
| 1026 | |
| 1027 // Make a pointer to some value of type klass. | |
| 1028 static const TypeInstPtr *make(PTR ptr, ciKlass* klass) { | |
| 12966 | 1029 return make(ptr, klass, false, NULL, 0, InstanceBot); |
| 0 | 1030 } |
| 1031 | |
| 1032 // Make a pointer to some non-polymorphic value of exactly type klass. | |
| 1033 static const TypeInstPtr *make_exact(PTR ptr, ciKlass* klass) { | |
| 12966 | 1034 return make(ptr, klass, true, NULL, 0, InstanceBot); |
| 0 | 1035 } |
| 1036 | |
| 1037 // Make a pointer to some value of type klass with offset. | |
| 1038 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, int offset) { | |
| 12966 | 1039 return make(ptr, klass, false, NULL, offset, InstanceBot); |
| 0 | 1040 } |
| 1041 | |
| 1042 // Make a pointer to an oop. | |
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1043 static const TypeInstPtr *make(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id = InstanceBot, const TypeOopPtr* speculative = NULL, int inline_depth = InlineDepthBottom); |
| 0 | 1044 |
| 10278 | 1045 /** Create constant type for a constant boxed value */ |
| 1046 const Type* get_const_boxed_value() const; | |
| 1047 | |
| 0 | 1048 // If this is a java.lang.Class constant, return the type for it or NULL. |
| 1049 // Pass to Type::get_const_type to turn it to a type, which will usually | |
| 1050 // be a TypeInstPtr, but may also be a TypeInt::INT for int.class, etc. | |
| 1051 ciType* java_mirror_type() const; | |
| 1052 | |
| 1053 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 1054 | |
| 1055 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 1056 | |
| 223 | 1057 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
| 0 | 1058 |
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1059 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 12966 | 1060 // Return same type without a speculative part |
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1061 virtual const Type* remove_speculative() const; |
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1062 virtual const TypeOopPtr* with_inline_depth(int depth) 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 TypeInstPtr *xmeet_unloaded( const TypeInstPtr *t ) const; |
| 1067 virtual const Type *xdual() const; // Compute dual right now. | |
| 1068 | |
| 1069 // Convenience common pre-built types. | |
| 1070 static const TypeInstPtr *NOTNULL; | |
| 1071 static const TypeInstPtr *BOTTOM; | |
| 1072 static const TypeInstPtr *MIRROR; | |
| 1073 static const TypeInstPtr *MARK; | |
| 1074 static const TypeInstPtr *KLASS; | |
| 1075 #ifndef PRODUCT | |
| 1076 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 1077 #endif | |
| 1078 }; | |
| 1079 | |
| 1080 //------------------------------TypeAryPtr------------------------------------- | |
| 1081 // Class of Java array pointers | |
| 1082 class TypeAryPtr : public TypeOopPtr { | |
| 10278 | 1083 TypeAryPtr( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, |
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1084 int offset, int instance_id, bool is_autobox_cache, const TypeOopPtr* speculative, int inline_depth) |
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1085 : TypeOopPtr(AryPtr,ptr,k,xk,o,offset, instance_id, speculative, inline_depth), |
| 10278 | 1086 _ary(ary), |
| 1087 _is_autobox_cache(is_autobox_cache) | |
| 1088 { | |
| 1761 | 1089 #ifdef ASSERT |
| 1090 if (k != NULL) { | |
| 1091 // Verify that specified klass and TypeAryPtr::klass() follow the same rules. | |
| 1092 ciKlass* ck = compute_klass(true); | |
| 1792 | 1093 if (k != ck) { |
| 1761 | 1094 this->dump(); tty->cr(); |
| 1095 tty->print(" k: "); | |
| 1096 k->print(); tty->cr(); | |
| 1097 tty->print("ck: "); | |
| 1098 if (ck != NULL) ck->print(); | |
| 1099 else tty->print("<NULL>"); | |
| 1100 tty->cr(); | |
| 1101 assert(false, "unexpected TypeAryPtr::_klass"); | |
| 1102 } | |
| 1103 } | |
| 1104 #endif | |
| 1105 } | |
| 0 | 1106 virtual bool eq( const Type *t ) const; |
| 1107 virtual int hash() const; // Type specific hashing | |
| 1108 const TypeAry *_ary; // Array we point into | |
| 10278 | 1109 const bool _is_autobox_cache; |
| 0 | 1110 |
| 1761 | 1111 ciKlass* compute_klass(DEBUG_ONLY(bool verify = false)) const; |
| 1112 | |
| 0 | 1113 public: |
| 1114 // Accessors | |
| 1115 ciKlass* klass() const; | |
| 1116 const TypeAry* ary() const { return _ary; } | |
| 1117 const Type* elem() const { return _ary->_elem; } | |
| 1118 const TypeInt* size() const { return _ary->_size; } | |
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1119 bool is_stable() const { return _ary->_stable; } |
| 0 | 1120 |
| 10278 | 1121 bool is_autobox_cache() const { return _is_autobox_cache; } |
| 1122 | |
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1123 static const TypeAryPtr *make( PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id = InstanceBot, const TypeOopPtr* speculative = NULL, int inline_depth = InlineDepthBottom); |
| 0 | 1124 // Constant pointer to array |
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1125 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, int inline_depth = InlineDepthBottom, bool is_autobox_cache= false); |
| 0 | 1126 |
| 1127 // Return a 'ptr' version of this type | |
| 1128 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 1129 | |
| 1130 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 1131 | |
| 223 | 1132 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
| 0 | 1133 |
| 1134 virtual const TypeAryPtr* cast_to_size(const TypeInt* size) const; | |
|
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1135 virtual const TypeInt* narrow_size_type(const TypeInt* size) const; |
| 0 | 1136 |
| 1137 virtual bool empty(void) const; // TRUE if type is vacuous | |
|
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1138 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 12966 | 1139 // Return same type without a speculative part |
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1140 virtual const Type* remove_speculative() const; |
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1141 virtual const TypeOopPtr* with_inline_depth(int depth) const; |
| 0 | 1142 |
| 12966 | 1143 // the core of the computation of the meet of 2 types |
| 1144 virtual const Type *xmeet_helper(const Type *t) const; | |
| 0 | 1145 virtual const Type *xdual() const; // Compute dual right now. |
| 1146 | |
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1147 const TypeAryPtr* cast_to_stable(bool stable, int stable_dimension = 1) const; |
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1148 int stable_dimension() const; |
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1149 |
| 0 | 1150 // Convenience common pre-built types. |
| 1151 static const TypeAryPtr *RANGE; | |
| 1152 static const TypeAryPtr *OOPS; | |
| 163 | 1153 static const TypeAryPtr *NARROWOOPS; |
| 0 | 1154 static const TypeAryPtr *BYTES; |
| 1155 static const TypeAryPtr *SHORTS; | |
| 1156 static const TypeAryPtr *CHARS; | |
| 1157 static const TypeAryPtr *INTS; | |
| 1158 static const TypeAryPtr *LONGS; | |
| 1159 static const TypeAryPtr *FLOATS; | |
| 1160 static const TypeAryPtr *DOUBLES; | |
| 1161 // selects one of the above: | |
| 1162 static const TypeAryPtr *get_array_body_type(BasicType elem) { | |
| 1163 assert((uint)elem <= T_CONFLICT && _array_body_type[elem] != NULL, "bad elem type"); | |
| 1164 return _array_body_type[elem]; | |
| 1165 } | |
| 1166 static const TypeAryPtr *_array_body_type[T_CONFLICT+1]; | |
| 1167 // sharpen the type of an int which is used as an array size | |
|
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1168 #ifdef ASSERT |
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1169 // One type is interface, the other is oop |
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1170 virtual bool interface_vs_oop(const Type *t) const; |
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1171 #endif |
| 0 | 1172 #ifndef PRODUCT |
| 1173 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 1174 #endif | |
| 1175 }; | |
| 1176 | |
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1177 //------------------------------TypeMetadataPtr------------------------------------- |
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1178 // Some kind of metadata, either Method*, MethodData* or CPCacheOop |
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1179 class TypeMetadataPtr : public TypePtr { |
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1180 protected: |
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1181 TypeMetadataPtr(PTR ptr, ciMetadata* metadata, int offset); |
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1182 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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1183 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
|
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1184 public: |
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1185 virtual bool eq( const Type *t ) const; |
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1186 virtual int hash() const; // Type specific hashing |
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1187 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1188 |
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1189 private: |
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1190 ciMetadata* _metadata; |
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1191 |
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1192 public: |
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1193 static const TypeMetadataPtr* make(PTR ptr, ciMetadata* m, int offset); |
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1194 |
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1195 static const TypeMetadataPtr* make(ciMethod* m); |
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1196 static const TypeMetadataPtr* make(ciMethodData* m); |
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1197 |
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1198 ciMetadata* metadata() const { return _metadata; } |
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1199 |
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1200 virtual const Type *cast_to_ptr_type(PTR ptr) const; |
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1201 |
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1202 virtual const TypePtr *add_offset( intptr_t offset ) const; |
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1203 |
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1204 virtual const Type *xmeet( const Type *t ) const; |
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1205 virtual const Type *xdual() const; // Compute dual right now. |
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1206 |
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1207 virtual intptr_t get_con() const; |
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1208 |
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1209 // Convenience common pre-built types. |
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1210 static const TypeMetadataPtr *BOTTOM; |
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1211 |
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1212 #ifndef PRODUCT |
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1213 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1214 #endif |
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1215 }; |
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1216 |
| 0 | 1217 //------------------------------TypeKlassPtr----------------------------------- |
| 1218 // Class of Java Klass pointers | |
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1219 class TypeKlassPtr : public TypePtr { |
| 0 | 1220 TypeKlassPtr( PTR ptr, ciKlass* klass, int offset ); |
| 1221 | |
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1222 protected: |
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1223 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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1224 public: |
| 0 | 1225 virtual bool eq( const Type *t ) const; |
| 1226 virtual int hash() const; // Type specific hashing | |
|
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1227 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1228 private: |
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1229 |
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1230 static const TypeKlassPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); |
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1231 |
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1232 ciKlass* _klass; |
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1233 |
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1234 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) |
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1235 bool _klass_is_exact; |
| 0 | 1236 |
| 1237 public: | |
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1238 ciSymbol* name() const { return klass()->name(); } |
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1239 |
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1240 ciKlass* klass() const { return _klass; } |
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1241 bool klass_is_exact() const { return _klass_is_exact; } |
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1242 |
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1243 bool is_loaded() const { return klass()->is_loaded(); } |
| 0 | 1244 |
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1245 // Creates a type given a klass. Correctly handles multi-dimensional arrays |
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1246 // Respects UseUniqueSubclasses. |
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1247 // If the klass is final, the resulting type will be exact. |
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1248 static const TypeKlassPtr* make_from_klass(ciKlass* klass) { |
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1249 return make_from_klass_common(klass, true, false); |
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1250 } |
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1251 // Same as before, but will produce an exact type, even if |
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1252 // the klass is not final, as long as it has exactly one implementation. |
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1253 static const TypeKlassPtr* make_from_klass_unique(ciKlass* klass) { |
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1254 return make_from_klass_common(klass, true, true); |
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1255 } |
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1256 // Same as before, but does not respects UseUniqueSubclasses. |
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1257 // Use this only for creating array element types. |
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1258 static const TypeKlassPtr* make_from_klass_raw(ciKlass* klass) { |
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1259 return make_from_klass_common(klass, false, false); |
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1260 } |
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1261 |
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1262 // Make a generic (unclassed) pointer to metadata. |
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1263 static const TypeKlassPtr* make(PTR ptr, int offset); |
| 555 | 1264 |
| 0 | 1265 // ptr to klass 'k' |
| 1266 static const TypeKlassPtr *make( ciKlass* k ) { return make( TypePtr::Constant, k, 0); } | |
| 1267 // ptr to klass 'k' with offset | |
| 1268 static const TypeKlassPtr *make( ciKlass* k, int offset ) { return make( TypePtr::Constant, k, offset); } | |
| 1269 // ptr to klass 'k' or sub-klass | |
| 1270 static const TypeKlassPtr *make( PTR ptr, ciKlass* k, int offset); | |
| 1271 | |
| 1272 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 1273 | |
| 1274 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 1275 | |
| 1276 // corresponding pointer to instance, for a given class | |
| 1277 const TypeOopPtr* as_instance_type() const; | |
| 1278 | |
|
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1279 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 0 | 1280 virtual const Type *xmeet( const Type *t ) const; |
| 1281 virtual const Type *xdual() const; // Compute dual right now. | |
| 1282 | |
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1283 virtual intptr_t get_con() const; |
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1284 |
| 0 | 1285 // Convenience common pre-built types. |
| 1286 static const TypeKlassPtr* OBJECT; // Not-null object klass or below | |
| 1287 static const TypeKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same | |
| 1288 #ifndef PRODUCT | |
| 1289 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 1290 #endif | |
| 1291 }; | |
| 1292 | |
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1293 class TypeNarrowPtr : public Type { |
|
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1294 protected: |
|
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1295 const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR |
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1296 |
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1297 TypeNarrowPtr(TYPES t, const TypePtr* ptrtype): _ptrtype(ptrtype), |
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1298 Type(t) { |
|
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1299 assert(ptrtype->offset() == 0 || |
|
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1300 ptrtype->offset() == OffsetBot || |
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1301 ptrtype->offset() == OffsetTop, "no real offsets"); |
|
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1302 } |
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1303 |
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1304 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const = 0; |
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1305 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const = 0; |
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1306 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const = 0; |
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1307 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const = 0; |
|
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1308 // Do not allow interface-vs.-noninterface joins to collapse to top. |
|
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1309 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
|
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1310 public: |
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1311 virtual bool eq( const Type *t ) const; |
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1312 virtual int hash() const; // Type specific hashing |
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1313 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1314 |
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1315 virtual const Type *xmeet( const Type *t ) const; |
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1316 virtual const Type *xdual() const; // Compute dual right now. |
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1317 |
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1318 virtual intptr_t get_con() const; |
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1319 |
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1320 virtual bool empty(void) const; // TRUE if type is vacuous |
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1321 |
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1322 // returns the equivalent ptr type for this compressed pointer |
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1323 const TypePtr *get_ptrtype() const { |
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1324 return _ptrtype; |
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1325 } |
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1326 |
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1327 #ifndef PRODUCT |
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1328 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1329 #endif |
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1330 }; |
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1331 |
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1332 //------------------------------TypeNarrowOop---------------------------------- |
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1333 // A compressed reference to some kind of Oop. This type wraps around |
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1334 // a preexisting TypeOopPtr and forwards most of it's operations to |
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1335 // the underlying type. It's only real purpose is to track the |
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1336 // oopness of the compressed oop value when we expose the conversion |
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1337 // between the normal and the compressed form. |
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1338 class TypeNarrowOop : public TypeNarrowPtr { |
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1339 protected: |
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1340 TypeNarrowOop( const TypePtr* ptrtype): TypeNarrowPtr(NarrowOop, ptrtype) { |
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1341 } |
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1342 |
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1343 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { |
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1344 return t->isa_narrowoop(); |
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1345 } |
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1346 |
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1347 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { |
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1348 return t->is_narrowoop(); |
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1349 } |
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1350 |
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1351 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { |
|
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1352 return new TypeNarrowOop(t); |
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1353 } |
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1354 |
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1355 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { |
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1356 return (const TypeNarrowPtr*)((new TypeNarrowOop(t))->hashcons()); |
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1357 } |
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1358 |
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1359 public: |
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1360 |
|
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1361 static const TypeNarrowOop *make( const TypePtr* type); |
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1362 |
|
2379
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1363 static const TypeNarrowOop* make_from_constant(ciObject* con, bool require_constant = false) { |
|
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1364 return make(TypeOopPtr::make_from_constant(con, require_constant)); |
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1365 } |
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1366 |
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1367 static const TypeNarrowOop *BOTTOM; |
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1368 static const TypeNarrowOop *NULL_PTR; |
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1369 |
|
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1370 virtual const Type* remove_speculative() const { |
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1371 return make(_ptrtype->remove_speculative()->is_ptr()); |
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1372 } |
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1373 |
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1374 #ifndef PRODUCT |
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1375 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1376 #endif |
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1377 }; |
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1378 |
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1379 //------------------------------TypeNarrowKlass---------------------------------- |
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1380 // A compressed reference to klass pointer. This type wraps around a |
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1381 // preexisting TypeKlassPtr and forwards most of it's operations to |
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1382 // the underlying type. |
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1383 class TypeNarrowKlass : public TypeNarrowPtr { |
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1384 protected: |
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1385 TypeNarrowKlass( const TypePtr* ptrtype): TypeNarrowPtr(NarrowKlass, ptrtype) { |
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1386 } |
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1387 |
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1388 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { |
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1389 return t->isa_narrowklass(); |
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1390 } |
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1391 |
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1392 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { |
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1393 return t->is_narrowklass(); |
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1394 } |
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1395 |
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1396 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { |
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1397 return new TypeNarrowKlass(t); |
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1398 } |
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1399 |
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1400 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { |
|
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1401 return (const TypeNarrowPtr*)((new TypeNarrowKlass(t))->hashcons()); |
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1402 } |
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1403 |
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1404 public: |
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1405 static const TypeNarrowKlass *make( const TypePtr* type); |
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1406 |
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1407 // static const TypeNarrowKlass *BOTTOM; |
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1408 static const TypeNarrowKlass *NULL_PTR; |
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1409 |
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1410 #ifndef PRODUCT |
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1411 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1412 #endif |
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1413 }; |
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1414 |
| 0 | 1415 //------------------------------TypeFunc--------------------------------------- |
| 1416 // Class of Array Types | |
| 1417 class TypeFunc : public Type { | |
| 1418 TypeFunc( const TypeTuple *domain, const TypeTuple *range ) : Type(Function), _domain(domain), _range(range) {} | |
| 1419 virtual bool eq( const Type *t ) const; | |
| 1420 virtual int hash() const; // Type specific hashing | |
| 1421 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 1422 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 1423 public: | |
| 1424 // Constants are shared among ADLC and VM | |
| 1425 enum { Control = AdlcVMDeps::Control, | |
| 1426 I_O = AdlcVMDeps::I_O, | |
| 1427 Memory = AdlcVMDeps::Memory, | |
| 1428 FramePtr = AdlcVMDeps::FramePtr, | |
| 1429 ReturnAdr = AdlcVMDeps::ReturnAdr, | |
| 1430 Parms = AdlcVMDeps::Parms | |
| 1431 }; | |
| 1432 | |
| 1433 const TypeTuple* const _domain; // Domain of inputs | |
| 1434 const TypeTuple* const _range; // Range of results | |
| 1435 | |
| 1436 // Accessors: | |
| 1437 const TypeTuple* domain() const { return _domain; } | |
| 1438 const TypeTuple* range() const { return _range; } | |
| 1439 | |
| 1440 static const TypeFunc *make(ciMethod* method); | |
| 1441 static const TypeFunc *make(ciSignature signature, const Type* extra); | |
| 1442 static const TypeFunc *make(const TypeTuple* domain, const TypeTuple* range); | |
| 1443 | |
| 1444 virtual const Type *xmeet( const Type *t ) const; | |
| 1445 virtual const Type *xdual() const; // Compute dual right now. | |
| 1446 | |
| 1447 BasicType return_type() const; | |
| 1448 | |
| 1449 #ifndef PRODUCT | |
| 1450 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 1451 #endif | |
| 1452 // Convenience common pre-built types. | |
| 1453 }; | |
| 1454 | |
| 1455 //------------------------------accessors-------------------------------------- | |
| 163 | 1456 inline bool Type::is_ptr_to_narrowoop() const { |
| 1457 #ifdef _LP64 | |
| 1458 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowoop_nv()); | |
| 1459 #else | |
| 1460 return false; | |
| 1461 #endif | |
| 1462 } | |
| 1463 | |
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1464 inline bool Type::is_ptr_to_narrowklass() const { |
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1465 #ifdef _LP64 |
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1466 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowklass_nv()); |
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1467 #else |
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1468 return false; |
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1469 #endif |
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1470 } |
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1471 |
| 0 | 1472 inline float Type::getf() const { |
| 1473 assert( _base == FloatCon, "Not a FloatCon" ); | |
| 1474 return ((TypeF*)this)->_f; | |
| 1475 } | |
| 1476 | |
| 1477 inline double Type::getd() const { | |
| 1478 assert( _base == DoubleCon, "Not a DoubleCon" ); | |
| 1479 return ((TypeD*)this)->_d; | |
| 1480 } | |
| 1481 | |
| 1482 inline const TypeInt *Type::is_int() const { | |
| 1483 assert( _base == Int, "Not an Int" ); | |
| 1484 return (TypeInt*)this; | |
| 1485 } | |
| 1486 | |
| 1487 inline const TypeInt *Type::isa_int() const { | |
| 1488 return ( _base == Int ? (TypeInt*)this : NULL); | |
| 1489 } | |
| 1490 | |
| 1491 inline const TypeLong *Type::is_long() const { | |
| 1492 assert( _base == Long, "Not a Long" ); | |
| 1493 return (TypeLong*)this; | |
| 1494 } | |
| 1495 | |
| 1496 inline const TypeLong *Type::isa_long() const { | |
| 1497 return ( _base == Long ? (TypeLong*)this : NULL); | |
| 1498 } | |
| 1499 | |
|
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1500 inline const TypeF *Type::isa_float() const { |
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1501 return ((_base == FloatTop || |
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1502 _base == FloatCon || |
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1503 _base == FloatBot) ? (TypeF*)this : NULL); |
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1504 } |
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1505 |
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1506 inline const TypeF *Type::is_float_constant() const { |
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1507 assert( _base == FloatCon, "Not a Float" ); |
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1508 return (TypeF*)this; |
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1509 } |
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1510 |
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1511 inline const TypeF *Type::isa_float_constant() const { |
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1512 return ( _base == FloatCon ? (TypeF*)this : NULL); |
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1513 } |
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1514 |
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1515 inline const TypeD *Type::isa_double() const { |
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1516 return ((_base == DoubleTop || |
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1517 _base == DoubleCon || |
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1518 _base == DoubleBot) ? (TypeD*)this : NULL); |
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1519 } |
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1520 |
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1521 inline const TypeD *Type::is_double_constant() const { |
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1522 assert( _base == DoubleCon, "Not a Double" ); |
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1523 return (TypeD*)this; |
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1524 } |
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1525 |
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1526 inline const TypeD *Type::isa_double_constant() const { |
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1527 return ( _base == DoubleCon ? (TypeD*)this : NULL); |
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1528 } |
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1529 |
| 0 | 1530 inline const TypeTuple *Type::is_tuple() const { |
| 1531 assert( _base == Tuple, "Not a Tuple" ); | |
| 1532 return (TypeTuple*)this; | |
| 1533 } | |
| 1534 | |
| 1535 inline const TypeAry *Type::is_ary() const { | |
| 1536 assert( _base == Array , "Not an Array" ); | |
| 1537 return (TypeAry*)this; | |
| 1538 } | |
| 1539 | |
|
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1540 inline const TypeVect *Type::is_vect() const { |
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1541 assert( _base >= VectorS && _base <= VectorY, "Not a Vector" ); |
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1542 return (TypeVect*)this; |
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1543 } |
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1544 |
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1545 inline const TypeVect *Type::isa_vect() const { |
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1546 return (_base >= VectorS && _base <= VectorY) ? (TypeVect*)this : NULL; |
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1547 } |
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1548 |
| 0 | 1549 inline const TypePtr *Type::is_ptr() const { |
| 1550 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
| 1551 assert(_base >= AnyPtr && _base <= KlassPtr, "Not a pointer"); | |
| 1552 return (TypePtr*)this; | |
| 1553 } | |
| 1554 | |
| 1555 inline const TypePtr *Type::isa_ptr() const { | |
| 1556 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
| 1557 return (_base >= AnyPtr && _base <= KlassPtr) ? (TypePtr*)this : NULL; | |
| 1558 } | |
| 1559 | |
| 1560 inline const TypeOopPtr *Type::is_oopptr() const { | |
| 1561 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
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1562 assert(_base >= OopPtr && _base <= AryPtr, "Not a Java pointer" ) ; |
| 0 | 1563 return (TypeOopPtr*)this; |
| 1564 } | |
| 1565 | |
| 1566 inline const TypeOopPtr *Type::isa_oopptr() const { | |
| 1567 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
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1568 return (_base >= OopPtr && _base <= AryPtr) ? (TypeOopPtr*)this : NULL; |
| 0 | 1569 } |
| 1570 | |
|
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1571 inline const TypeRawPtr *Type::isa_rawptr() const { |
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1572 return (_base == RawPtr) ? (TypeRawPtr*)this : NULL; |
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1573 } |
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1574 |
| 0 | 1575 inline const TypeRawPtr *Type::is_rawptr() const { |
| 1576 assert( _base == RawPtr, "Not a raw pointer" ); | |
| 1577 return (TypeRawPtr*)this; | |
| 1578 } | |
| 1579 | |
| 1580 inline const TypeInstPtr *Type::isa_instptr() const { | |
| 1581 return (_base == InstPtr) ? (TypeInstPtr*)this : NULL; | |
| 1582 } | |
| 1583 | |
| 1584 inline const TypeInstPtr *Type::is_instptr() const { | |
| 1585 assert( _base == InstPtr, "Not an object pointer" ); | |
| 1586 return (TypeInstPtr*)this; | |
| 1587 } | |
| 1588 | |
| 1589 inline const TypeAryPtr *Type::isa_aryptr() const { | |
| 1590 return (_base == AryPtr) ? (TypeAryPtr*)this : NULL; | |
| 1591 } | |
| 1592 | |
| 1593 inline const TypeAryPtr *Type::is_aryptr() const { | |
| 1594 assert( _base == AryPtr, "Not an array pointer" ); | |
| 1595 return (TypeAryPtr*)this; | |
| 1596 } | |
| 1597 | |
|
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1598 inline const TypeNarrowOop *Type::is_narrowoop() const { |
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1599 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
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1600 assert(_base == NarrowOop, "Not a narrow oop" ) ; |
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1601 return (TypeNarrowOop*)this; |
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1602 } |
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1603 |
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1604 inline const TypeNarrowOop *Type::isa_narrowoop() const { |
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1605 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
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1606 return (_base == NarrowOop) ? (TypeNarrowOop*)this : NULL; |
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1607 } |
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1608 |
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1609 inline const TypeNarrowKlass *Type::is_narrowklass() const { |
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1610 assert(_base == NarrowKlass, "Not a narrow oop" ) ; |
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1611 return (TypeNarrowKlass*)this; |
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1612 } |
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1613 |
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1614 inline const TypeNarrowKlass *Type::isa_narrowklass() const { |
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1615 return (_base == NarrowKlass) ? (TypeNarrowKlass*)this : NULL; |
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1616 } |
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1617 |
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1618 inline const TypeMetadataPtr *Type::is_metadataptr() const { |
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1619 // MetadataPtr is the first and CPCachePtr the last |
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1620 assert(_base == MetadataPtr, "Not a metadata pointer" ) ; |
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1621 return (TypeMetadataPtr*)this; |
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1622 } |
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1623 |
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1624 inline const TypeMetadataPtr *Type::isa_metadataptr() const { |
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1625 return (_base == MetadataPtr) ? (TypeMetadataPtr*)this : NULL; |
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1626 } |
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1627 |
| 0 | 1628 inline const TypeKlassPtr *Type::isa_klassptr() const { |
| 1629 return (_base == KlassPtr) ? (TypeKlassPtr*)this : NULL; | |
| 1630 } | |
| 1631 | |
| 1632 inline const TypeKlassPtr *Type::is_klassptr() const { | |
| 1633 assert( _base == KlassPtr, "Not a klass pointer" ); | |
| 1634 return (TypeKlassPtr*)this; | |
| 1635 } | |
| 1636 | |
|
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1637 inline const TypePtr* Type::make_ptr() const { |
|
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1638 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype() : |
|
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1639 ((_base == NarrowKlass) ? is_narrowklass()->get_ptrtype() : |
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1640 (isa_ptr() ? is_ptr() : NULL)); |
|
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1641 } |
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1642 |
|
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1643 inline const TypeOopPtr* Type::make_oopptr() const { |
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1644 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->is_oopptr() : is_oopptr(); |
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1645 } |
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1646 |
|
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1647 inline const TypeNarrowOop* Type::make_narrowoop() const { |
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1648 return (_base == NarrowOop) ? is_narrowoop() : |
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1649 (isa_ptr() ? TypeNarrowOop::make(is_ptr()) : NULL); |
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1650 } |
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1651 |
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1652 inline const TypeNarrowKlass* Type::make_narrowklass() const { |
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1653 return (_base == NarrowKlass) ? is_narrowklass() : |
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1654 (isa_ptr() ? TypeNarrowKlass::make(is_ptr()) : NULL); |
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1655 } |
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1656 |
| 0 | 1657 inline bool Type::is_floatingpoint() const { |
| 1658 if( (_base == FloatCon) || (_base == FloatBot) || | |
| 1659 (_base == DoubleCon) || (_base == DoubleBot) ) | |
| 1660 return true; | |
| 1661 return false; | |
| 1662 } | |
| 1663 | |
| 10278 | 1664 inline bool Type::is_ptr_to_boxing_obj() const { |
| 1665 const TypeInstPtr* tp = isa_instptr(); | |
| 1666 return (tp != NULL) && (tp->offset() == 0) && | |
| 1667 tp->klass()->is_instance_klass() && | |
| 1668 tp->klass()->as_instance_klass()->is_box_klass(); | |
| 1669 } | |
| 1670 | |
| 0 | 1671 |
| 1672 // =============================================================== | |
| 1673 // Things that need to be 64-bits in the 64-bit build but | |
| 1674 // 32-bits in the 32-bit build. Done this way to get full | |
| 1675 // optimization AND strong typing. | |
| 1676 #ifdef _LP64 | |
| 1677 | |
| 1678 // For type queries and asserts | |
| 1679 #define is_intptr_t is_long | |
| 1680 #define isa_intptr_t isa_long | |
| 1681 #define find_intptr_t_type find_long_type | |
| 1682 #define find_intptr_t_con find_long_con | |
| 1683 #define TypeX TypeLong | |
| 1684 #define Type_X Type::Long | |
| 1685 #define TypeX_X TypeLong::LONG | |
| 1686 #define TypeX_ZERO TypeLong::ZERO | |
| 1687 // For 'ideal_reg' machine registers | |
| 1688 #define Op_RegX Op_RegL | |
| 1689 // For phase->intcon variants | |
| 1690 #define MakeConX longcon | |
| 1691 #define ConXNode ConLNode | |
| 1692 // For array index arithmetic | |
| 1693 #define MulXNode MulLNode | |
| 1694 #define AndXNode AndLNode | |
| 1695 #define OrXNode OrLNode | |
| 1696 #define CmpXNode CmpLNode | |
| 1697 #define SubXNode SubLNode | |
| 1698 #define LShiftXNode LShiftLNode | |
| 1699 // For object size computation: | |
| 1700 #define AddXNode AddLNode | |
|
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1701 #define RShiftXNode RShiftLNode |
| 0 | 1702 // For card marks and hashcodes |
| 1703 #define URShiftXNode URShiftLNode | |
|
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1704 // UseOptoBiasInlining |
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1705 #define XorXNode XorLNode |
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1706 #define StoreXConditionalNode StoreLConditionalNode |
| 0 | 1707 // Opcodes |
| 1708 #define Op_LShiftX Op_LShiftL | |
| 1709 #define Op_AndX Op_AndL | |
| 1710 #define Op_AddX Op_AddL | |
| 1711 #define Op_SubX Op_SubL | |
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1712 #define Op_XorX Op_XorL |
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1713 #define Op_URShiftX Op_URShiftL |
| 0 | 1714 // conversions |
| 1715 #define ConvI2X(x) ConvI2L(x) | |
| 1716 #define ConvL2X(x) (x) | |
| 1717 #define ConvX2I(x) ConvL2I(x) | |
| 1718 #define ConvX2L(x) (x) | |
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1719 #define ConvX2UL(x) (x) |
| 0 | 1720 |
| 1721 #else | |
| 1722 | |
| 1723 // For type queries and asserts | |
| 1724 #define is_intptr_t is_int | |
| 1725 #define isa_intptr_t isa_int | |
| 1726 #define find_intptr_t_type find_int_type | |
| 1727 #define find_intptr_t_con find_int_con | |
| 1728 #define TypeX TypeInt | |
| 1729 #define Type_X Type::Int | |
| 1730 #define TypeX_X TypeInt::INT | |
| 1731 #define TypeX_ZERO TypeInt::ZERO | |
| 1732 // For 'ideal_reg' machine registers | |
| 1733 #define Op_RegX Op_RegI | |
| 1734 // For phase->intcon variants | |
| 1735 #define MakeConX intcon | |
| 1736 #define ConXNode ConINode | |
| 1737 // For array index arithmetic | |
| 1738 #define MulXNode MulINode | |
| 1739 #define AndXNode AndINode | |
| 1740 #define OrXNode OrINode | |
| 1741 #define CmpXNode CmpINode | |
| 1742 #define SubXNode SubINode | |
| 1743 #define LShiftXNode LShiftINode | |
| 1744 // For object size computation: | |
| 1745 #define AddXNode AddINode | |
|
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1746 #define RShiftXNode RShiftINode |
| 0 | 1747 // For card marks and hashcodes |
| 1748 #define URShiftXNode URShiftINode | |
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1749 // UseOptoBiasInlining |
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1750 #define XorXNode XorINode |
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1751 #define StoreXConditionalNode StoreIConditionalNode |
| 0 | 1752 // Opcodes |
| 1753 #define Op_LShiftX Op_LShiftI | |
| 1754 #define Op_AndX Op_AndI | |
| 1755 #define Op_AddX Op_AddI | |
| 1756 #define Op_SubX Op_SubI | |
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1757 #define Op_XorX Op_XorI |
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1758 #define Op_URShiftX Op_URShiftI |
| 0 | 1759 // conversions |
| 1760 #define ConvI2X(x) (x) | |
| 1761 #define ConvL2X(x) ConvL2I(x) | |
| 1762 #define ConvX2I(x) (x) | |
| 1763 #define ConvX2L(x) ConvI2L(x) | |
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1764 #define ConvX2UL(x) ConvI2UL(x) |
| 0 | 1765 |
| 1766 #endif | |
| 1972 | 1767 |
| 1768 #endif // SHARE_VM_OPTO_TYPE_HPP |