Mercurial > hg > truffle
annotate src/share/vm/opto/type.hpp @ 17726:085b304a1cc5
8027754: Enable loop optimizations for loops with MathExact inside
Reviewed-by: kvn, iveresov
| author | rbackman |
|---|---|
| date | Thu, 23 Jan 2014 12:08:28 +0100 |
| parents | de95063c0e34 |
| children | 62825ea7e51f |
| 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 |
| 418 virtual ciKlass* speculative_type() const { return NULL; } | |
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419 const Type* maybe_remove_speculative(bool include_speculative) const; |
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420 virtual const Type* remove_speculative() const { return this; } |
| 12966 | 421 |
| 0 | 422 private: |
| 423 // support arrays | |
| 424 static const BasicType _basic_type[]; | |
| 425 static const Type* _zero_type[T_CONFLICT+1]; | |
| 426 static const Type* _const_basic_type[T_CONFLICT+1]; | |
| 427 }; | |
| 428 | |
| 429 //------------------------------TypeF------------------------------------------ | |
| 430 // Class of Float-Constant Types. | |
| 431 class TypeF : public Type { | |
| 432 TypeF( float f ) : Type(FloatCon), _f(f) {}; | |
| 433 public: | |
| 434 virtual bool eq( const Type *t ) const; | |
| 435 virtual int hash() const; // Type specific hashing | |
| 436 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 437 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 438 public: | |
| 439 const float _f; // Float constant | |
| 440 | |
| 441 static const TypeF *make(float f); | |
| 442 | |
| 443 virtual bool is_finite() const; // Has a finite value | |
| 444 virtual bool is_nan() const; // Is not a number (NaN) | |
| 445 | |
| 446 virtual const Type *xmeet( const Type *t ) const; | |
| 447 virtual const Type *xdual() const; // Compute dual right now. | |
| 448 // Convenience common pre-built types. | |
| 449 static const TypeF *ZERO; // positive zero only | |
| 450 static const TypeF *ONE; | |
| 451 #ifndef PRODUCT | |
| 452 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 453 #endif | |
| 454 }; | |
| 455 | |
| 456 //------------------------------TypeD------------------------------------------ | |
| 457 // Class of Double-Constant Types. | |
| 458 class TypeD : public Type { | |
| 459 TypeD( double d ) : Type(DoubleCon), _d(d) {}; | |
| 460 public: | |
| 461 virtual bool eq( const Type *t ) const; | |
| 462 virtual int hash() const; // Type specific hashing | |
| 463 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 464 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 465 public: | |
| 466 const double _d; // Double constant | |
| 467 | |
| 468 static const TypeD *make(double d); | |
| 469 | |
| 470 virtual bool is_finite() const; // Has a finite value | |
| 471 virtual bool is_nan() const; // Is not a number (NaN) | |
| 472 | |
| 473 virtual const Type *xmeet( const Type *t ) const; | |
| 474 virtual const Type *xdual() const; // Compute dual right now. | |
| 475 // Convenience common pre-built types. | |
| 476 static const TypeD *ZERO; // positive zero only | |
| 477 static const TypeD *ONE; | |
| 478 #ifndef PRODUCT | |
| 479 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 480 #endif | |
| 481 }; | |
| 482 | |
| 483 //------------------------------TypeInt---------------------------------------- | |
| 484 // Class of integer ranges, the set of integers between a lower bound and an | |
| 485 // upper bound, inclusive. | |
| 486 class TypeInt : public Type { | |
| 487 TypeInt( jint lo, jint hi, int w ); | |
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488 protected: |
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489 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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490 |
| 0 | 491 public: |
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492 typedef jint NativeType; |
| 0 | 493 virtual bool eq( const Type *t ) const; |
| 494 virtual int hash() const; // Type specific hashing | |
| 495 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 496 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 497 const jint _lo, _hi; // Lower bound, upper bound | |
| 498 const short _widen; // Limit on times we widen this sucker | |
| 499 | |
| 500 static const TypeInt *make(jint lo); | |
| 501 // must always specify w | |
| 502 static const TypeInt *make(jint lo, jint hi, int w); | |
| 503 | |
| 504 // Check for single integer | |
| 505 int is_con() const { return _lo==_hi; } | |
| 506 bool is_con(int i) const { return is_con() && _lo == i; } | |
| 507 jint get_con() const { assert( is_con(), "" ); return _lo; } | |
| 508 | |
| 509 virtual bool is_finite() const; // Has a finite value | |
| 510 | |
| 511 virtual const Type *xmeet( const Type *t ) const; | |
| 512 virtual const Type *xdual() const; // Compute dual right now. | |
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513 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
| 0 | 514 virtual const Type *narrow( const Type *t ) const; |
| 515 // Do not kill _widen bits. | |
| 516 // Convenience common pre-built types. | |
| 517 static const TypeInt *MINUS_1; | |
| 518 static const TypeInt *ZERO; | |
| 519 static const TypeInt *ONE; | |
| 520 static const TypeInt *BOOL; | |
| 521 static const TypeInt *CC; | |
| 522 static const TypeInt *CC_LT; // [-1] == MINUS_1 | |
| 523 static const TypeInt *CC_GT; // [1] == ONE | |
| 524 static const TypeInt *CC_EQ; // [0] == ZERO | |
| 525 static const TypeInt *CC_LE; // [-1,0] | |
| 526 static const TypeInt *CC_GE; // [0,1] == BOOL (!) | |
| 527 static const TypeInt *BYTE; | |
| 624 | 528 static const TypeInt *UBYTE; |
| 0 | 529 static const TypeInt *CHAR; |
| 530 static const TypeInt *SHORT; | |
| 531 static const TypeInt *POS; | |
| 532 static const TypeInt *POS1; | |
| 533 static const TypeInt *INT; | |
| 534 static const TypeInt *SYMINT; // symmetric range [-max_jint..max_jint] | |
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535 static const TypeInt *TYPE_DOMAIN; // alias for TypeInt::INT |
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536 |
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537 static const TypeInt *as_self(const Type *t) { return t->is_int(); } |
| 0 | 538 #ifndef PRODUCT |
| 539 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 540 #endif | |
| 541 }; | |
| 542 | |
| 543 | |
| 544 //------------------------------TypeLong--------------------------------------- | |
| 545 // Class of long integer ranges, the set of integers between a lower bound and | |
| 546 // an upper bound, inclusive. | |
| 547 class TypeLong : public Type { | |
| 548 TypeLong( jlong lo, jlong hi, int w ); | |
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549 protected: |
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550 // Do not kill _widen bits. |
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551 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
| 0 | 552 public: |
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553 typedef jlong NativeType; |
| 0 | 554 virtual bool eq( const Type *t ) const; |
| 555 virtual int hash() const; // Type specific hashing | |
| 556 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 557 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 558 public: | |
| 559 const jlong _lo, _hi; // Lower bound, upper bound | |
| 560 const short _widen; // Limit on times we widen this sucker | |
| 561 | |
| 562 static const TypeLong *make(jlong lo); | |
| 563 // must always specify w | |
| 564 static const TypeLong *make(jlong lo, jlong hi, int w); | |
| 565 | |
| 566 // Check for single integer | |
| 567 int is_con() const { return _lo==_hi; } | |
| 145 | 568 bool is_con(int i) const { return is_con() && _lo == i; } |
| 0 | 569 jlong get_con() const { assert( is_con(), "" ); return _lo; } |
| 570 | |
| 571 virtual bool is_finite() const; // Has a finite value | |
| 572 | |
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573 |
| 0 | 574 virtual const Type *xmeet( const Type *t ) const; |
| 575 virtual const Type *xdual() const; // Compute dual right now. | |
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576 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
| 0 | 577 virtual const Type *narrow( const Type *t ) const; |
| 578 // Convenience common pre-built types. | |
| 579 static const TypeLong *MINUS_1; | |
| 580 static const TypeLong *ZERO; | |
| 581 static const TypeLong *ONE; | |
| 582 static const TypeLong *POS; | |
| 583 static const TypeLong *LONG; | |
| 584 static const TypeLong *INT; // 32-bit subrange [min_jint..max_jint] | |
| 585 static const TypeLong *UINT; // 32-bit unsigned [0..max_juint] | |
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586 static const TypeLong *TYPE_DOMAIN; // alias for TypeLong::LONG |
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587 |
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588 // static convenience methods. |
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589 static const TypeLong *as_self(const Type *t) { return t->is_long(); } |
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590 |
| 0 | 591 #ifndef PRODUCT |
| 592 virtual void dump2( Dict &d, uint, outputStream *st ) const;// Specialized per-Type dumping | |
| 593 #endif | |
| 594 }; | |
| 595 | |
| 596 //------------------------------TypeTuple-------------------------------------- | |
| 597 // Class of Tuple Types, essentially type collections for function signatures | |
| 598 // and class layouts. It happens to also be a fast cache for the HotSpot | |
| 599 // signature types. | |
| 600 class TypeTuple : public Type { | |
| 601 TypeTuple( uint cnt, const Type **fields ) : Type(Tuple), _cnt(cnt), _fields(fields) { } | |
| 602 public: | |
| 603 virtual bool eq( const Type *t ) const; | |
| 604 virtual int hash() const; // Type specific hashing | |
| 605 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 606 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 607 | |
| 608 public: | |
| 609 const uint _cnt; // Count of fields | |
| 610 const Type ** const _fields; // Array of field types | |
| 611 | |
| 612 // Accessors: | |
| 613 uint cnt() const { return _cnt; } | |
| 614 const Type* field_at(uint i) const { | |
| 615 assert(i < _cnt, "oob"); | |
| 616 return _fields[i]; | |
| 617 } | |
| 618 void set_field_at(uint i, const Type* t) { | |
| 619 assert(i < _cnt, "oob"); | |
| 620 _fields[i] = t; | |
| 621 } | |
| 622 | |
| 623 static const TypeTuple *make( uint cnt, const Type **fields ); | |
| 624 static const TypeTuple *make_range(ciSignature *sig); | |
| 625 static const TypeTuple *make_domain(ciInstanceKlass* recv, ciSignature *sig); | |
| 626 | |
| 627 // Subroutine call type with space allocated for argument types | |
| 628 static const Type **fields( uint arg_cnt ); | |
| 629 | |
| 630 virtual const Type *xmeet( const Type *t ) const; | |
| 631 virtual const Type *xdual() const; // Compute dual right now. | |
| 632 // Convenience common pre-built types. | |
| 633 static const TypeTuple *IFBOTH; | |
| 634 static const TypeTuple *IFFALSE; | |
| 635 static const TypeTuple *IFTRUE; | |
| 636 static const TypeTuple *IFNEITHER; | |
| 637 static const TypeTuple *LOOPBODY; | |
| 638 static const TypeTuple *MEMBAR; | |
| 639 static const TypeTuple *STORECONDITIONAL; | |
| 640 static const TypeTuple *START_I2C; | |
| 641 static const TypeTuple *INT_PAIR; | |
| 642 static const TypeTuple *LONG_PAIR; | |
| 12323 | 643 static const TypeTuple *INT_CC_PAIR; |
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644 static const TypeTuple *LONG_CC_PAIR; |
| 0 | 645 #ifndef PRODUCT |
| 646 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
| 647 #endif | |
| 648 }; | |
| 649 | |
| 650 //------------------------------TypeAry---------------------------------------- | |
| 651 // Class of Array Types | |
| 652 class TypeAry : public Type { | |
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653 TypeAry(const Type* elem, const TypeInt* size, bool stable) : Type(Array), |
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654 _elem(elem), _size(size), _stable(stable) {} |
| 0 | 655 public: |
| 656 virtual bool eq( const Type *t ) const; | |
| 657 virtual int hash() const; // Type specific hashing | |
| 658 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 659 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 660 | |
| 661 private: | |
| 662 const Type *_elem; // Element type of array | |
| 663 const TypeInt *_size; // Elements in array | |
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664 const bool _stable; // Are elements @Stable? |
| 0 | 665 friend class TypeAryPtr; |
| 666 | |
| 667 public: | |
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668 static const TypeAry* make(const Type* elem, const TypeInt* size, bool stable = false); |
| 0 | 669 |
| 670 virtual const Type *xmeet( const Type *t ) const; | |
| 671 virtual const Type *xdual() const; // Compute dual right now. | |
| 672 bool ary_must_be_exact() const; // true if arrays of such are never generic | |
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673 virtual const Type* remove_speculative() const; |
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674 #ifdef ASSERT |
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675 // One type is interface, the other is oop |
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676 virtual bool interface_vs_oop(const Type *t) const; |
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677 #endif |
| 0 | 678 #ifndef PRODUCT |
| 679 virtual void dump2( Dict &d, uint, outputStream *st ) const; // Specialized per-Type dumping | |
| 680 #endif | |
| 681 }; | |
| 682 | |
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683 //------------------------------TypeVect--------------------------------------- |
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684 // Class of Vector Types |
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685 class TypeVect : public Type { |
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686 const Type* _elem; // Vector's element type |
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687 const uint _length; // Elements in vector (power of 2) |
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688 |
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689 protected: |
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690 TypeVect(TYPES t, const Type* elem, uint length) : Type(t), |
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691 _elem(elem), _length(length) {} |
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692 |
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693 public: |
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694 const Type* element_type() const { return _elem; } |
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695 BasicType element_basic_type() const { return _elem->array_element_basic_type(); } |
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696 uint length() const { return _length; } |
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697 uint length_in_bytes() const { |
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698 return _length * type2aelembytes(element_basic_type()); |
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699 } |
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700 |
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701 virtual bool eq(const Type *t) const; |
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702 virtual int hash() const; // Type specific hashing |
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703 virtual bool singleton(void) const; // TRUE if type is a singleton |
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704 virtual bool empty(void) const; // TRUE if type is vacuous |
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705 |
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706 static const TypeVect *make(const BasicType elem_bt, uint length) { |
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707 // Use bottom primitive type. |
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708 return make(get_const_basic_type(elem_bt), length); |
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709 } |
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710 // Used directly by Replicate nodes to construct singleton vector. |
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711 static const TypeVect *make(const Type* elem, uint length); |
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712 |
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713 virtual const Type *xmeet( const Type *t) const; |
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714 virtual const Type *xdual() const; // Compute dual right now. |
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715 |
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716 static const TypeVect *VECTS; |
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717 static const TypeVect *VECTD; |
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718 static const TypeVect *VECTX; |
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719 static const TypeVect *VECTY; |
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720 |
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721 #ifndef PRODUCT |
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722 virtual void dump2(Dict &d, uint, outputStream *st) const; // Specialized per-Type dumping |
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723 #endif |
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724 }; |
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725 |
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726 class TypeVectS : public TypeVect { |
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727 friend class TypeVect; |
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728 TypeVectS(const Type* elem, uint length) : TypeVect(VectorS, elem, length) {} |
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729 }; |
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730 |
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731 class TypeVectD : public TypeVect { |
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732 friend class TypeVect; |
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733 TypeVectD(const Type* elem, uint length) : TypeVect(VectorD, elem, length) {} |
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734 }; |
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735 |
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736 class TypeVectX : public TypeVect { |
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737 friend class TypeVect; |
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738 TypeVectX(const Type* elem, uint length) : TypeVect(VectorX, elem, length) {} |
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739 }; |
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740 |
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741 class TypeVectY : public TypeVect { |
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742 friend class TypeVect; |
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743 TypeVectY(const Type* elem, uint length) : TypeVect(VectorY, elem, length) {} |
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744 }; |
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745 |
| 0 | 746 //------------------------------TypePtr---------------------------------------- |
| 747 // Class of machine Pointer Types: raw data, instances or arrays. | |
| 748 // If the _base enum is AnyPtr, then this refers to all of the above. | |
| 749 // Otherwise the _base will indicate which subset of pointers is affected, | |
| 750 // and the class will be inherited from. | |
| 751 class TypePtr : public Type { | |
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752 friend class TypeNarrowPtr; |
| 0 | 753 public: |
| 754 enum PTR { TopPTR, AnyNull, Constant, Null, NotNull, BotPTR, lastPTR }; | |
| 755 protected: | |
| 756 TypePtr( TYPES t, PTR ptr, int offset ) : Type(t), _ptr(ptr), _offset(offset) {} | |
| 757 virtual bool eq( const Type *t ) const; | |
| 758 virtual int hash() const; // Type specific hashing | |
| 759 static const PTR ptr_meet[lastPTR][lastPTR]; | |
| 760 static const PTR ptr_dual[lastPTR]; | |
| 761 static const char * const ptr_msg[lastPTR]; | |
| 762 | |
| 763 public: | |
| 764 const int _offset; // Offset into oop, with TOP & BOT | |
| 765 const PTR _ptr; // Pointer equivalence class | |
| 766 | |
| 767 const int offset() const { return _offset; } | |
| 768 const PTR ptr() const { return _ptr; } | |
| 769 | |
| 770 static const TypePtr *make( TYPES t, PTR ptr, int offset ); | |
| 771 | |
| 772 // Return a 'ptr' version of this type | |
| 773 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 774 | |
| 775 virtual intptr_t get_con() const; | |
| 776 | |
|
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777 int xadd_offset( intptr_t offset ) const; |
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778 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 0 | 779 |
| 780 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 781 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 782 virtual const Type *xmeet( const Type *t ) const; | |
| 783 int meet_offset( int offset ) const; | |
| 784 int dual_offset( ) const; | |
| 785 virtual const Type *xdual() const; // Compute dual right now. | |
| 786 | |
| 787 // meet, dual and join over pointer equivalence sets | |
| 788 PTR meet_ptr( const PTR in_ptr ) const { return ptr_meet[in_ptr][ptr()]; } | |
| 789 PTR dual_ptr() const { return ptr_dual[ptr()]; } | |
| 790 | |
| 791 // This is textually confusing unless one recalls that | |
| 792 // join(t) == dual()->meet(t->dual())->dual(). | |
| 793 PTR join_ptr( const PTR in_ptr ) const { | |
| 794 return ptr_dual[ ptr_meet[ ptr_dual[in_ptr] ] [ dual_ptr() ] ]; | |
| 795 } | |
| 796 | |
| 797 // Tests for relation to centerline of type lattice: | |
| 798 static bool above_centerline(PTR ptr) { return (ptr <= AnyNull); } | |
| 799 static bool below_centerline(PTR ptr) { return (ptr >= NotNull); } | |
| 800 // Convenience common pre-built types. | |
| 801 static const TypePtr *NULL_PTR; | |
| 802 static const TypePtr *NOTNULL; | |
| 803 static const TypePtr *BOTTOM; | |
| 804 #ifndef PRODUCT | |
| 805 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 806 #endif | |
| 807 }; | |
| 808 | |
| 809 //------------------------------TypeRawPtr------------------------------------- | |
| 810 // Class of raw pointers, pointers to things other than Oops. Examples | |
| 811 // include the stack pointer, top of heap, card-marking area, handles, etc. | |
| 812 class TypeRawPtr : public TypePtr { | |
| 813 protected: | |
| 814 TypeRawPtr( PTR ptr, address bits ) : TypePtr(RawPtr,ptr,0), _bits(bits){} | |
| 815 public: | |
| 816 virtual bool eq( const Type *t ) const; | |
| 817 virtual int hash() const; // Type specific hashing | |
| 818 | |
| 819 const address _bits; // Constant value, if applicable | |
| 820 | |
| 821 static const TypeRawPtr *make( PTR ptr ); | |
| 822 static const TypeRawPtr *make( address bits ); | |
| 823 | |
| 824 // Return a 'ptr' version of this type | |
| 825 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 826 | |
| 827 virtual intptr_t get_con() const; | |
| 828 | |
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829 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 0 | 830 |
| 831 virtual const Type *xmeet( const Type *t ) const; | |
| 832 virtual const Type *xdual() const; // Compute dual right now. | |
| 833 // Convenience common pre-built types. | |
| 834 static const TypeRawPtr *BOTTOM; | |
| 835 static const TypeRawPtr *NOTNULL; | |
| 836 #ifndef PRODUCT | |
| 837 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 838 #endif | |
| 839 }; | |
| 840 | |
| 841 //------------------------------TypeOopPtr------------------------------------- | |
| 842 // Some kind of oop (Java pointer), either klass or instance or array. | |
| 843 class TypeOopPtr : public TypePtr { | |
| 844 protected: | |
| 12966 | 845 TypeOopPtr(TYPES t, PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id, const TypeOopPtr* speculative); |
| 0 | 846 public: |
| 847 virtual bool eq( const Type *t ) const; | |
| 848 virtual int hash() const; // Type specific hashing | |
| 849 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 850 enum { | |
| 223 | 851 InstanceTop = -1, // undefined instance |
| 852 InstanceBot = 0 // any possible instance | |
| 0 | 853 }; |
| 854 protected: | |
| 855 | |
| 856 // Oop is NULL, unless this is a constant oop. | |
| 857 ciObject* _const_oop; // Constant oop | |
| 858 // If _klass is NULL, then so is _sig. This is an unloaded klass. | |
| 859 ciKlass* _klass; // Klass object | |
| 860 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) | |
| 861 bool _klass_is_exact; | |
| 163 | 862 bool _is_ptr_to_narrowoop; |
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863 bool _is_ptr_to_narrowklass; |
| 10278 | 864 bool _is_ptr_to_boxed_value; |
| 0 | 865 |
| 223 | 866 // If not InstanceTop or InstanceBot, indicates that this is |
| 867 // a particular instance of this type which is distinct. | |
| 868 // This is the the node index of the allocation node creating this instance. | |
| 869 int _instance_id; | |
| 0 | 870 |
| 12966 | 871 // Extra type information profiling gave us. We propagate it the |
| 872 // same way the rest of the type info is propagated. If we want to | |
| 873 // use it, then we have to emit a guard: this part of the type is | |
| 874 // not something we know but something we speculate about the type. | |
| 875 const TypeOopPtr* _speculative; | |
| 876 | |
| 0 | 877 static const TypeOopPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); |
| 878 | |
| 223 | 879 int dual_instance_id() const; |
| 880 int meet_instance_id(int uid) const; | |
| 0 | 881 |
| 12966 | 882 // utility methods to work on the speculative part of the type |
| 883 const TypeOopPtr* dual_speculative() const; | |
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884 const TypeOopPtr* xmeet_speculative(const TypeOopPtr* other) const; |
| 12966 | 885 bool eq_speculative(const TypeOopPtr* other) const; |
| 886 int hash_speculative() const; | |
| 887 const TypeOopPtr* add_offset_speculative(intptr_t offset) const; | |
| 888 #ifndef PRODUCT | |
| 889 void dump_speculative(outputStream *st) const; | |
| 890 #endif | |
| 891 | |
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892 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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893 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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894 |
| 0 | 895 public: |
| 896 // Creates a type given a klass. Correctly handles multi-dimensional arrays | |
| 897 // Respects UseUniqueSubclasses. | |
| 898 // If the klass is final, the resulting type will be exact. | |
| 899 static const TypeOopPtr* make_from_klass(ciKlass* klass) { | |
| 900 return make_from_klass_common(klass, true, false); | |
| 901 } | |
| 902 // Same as before, but will produce an exact type, even if | |
| 903 // the klass is not final, as long as it has exactly one implementation. | |
| 904 static const TypeOopPtr* make_from_klass_unique(ciKlass* klass) { | |
| 905 return make_from_klass_common(klass, true, true); | |
| 906 } | |
| 907 // Same as before, but does not respects UseUniqueSubclasses. | |
| 908 // Use this only for creating array element types. | |
| 909 static const TypeOopPtr* make_from_klass_raw(ciKlass* klass) { | |
| 910 return make_from_klass_common(klass, false, false); | |
| 911 } | |
| 912 // Creates a singleton type given an object. | |
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913 // If the object cannot be rendered as a constant, |
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914 // may return a non-singleton type. |
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915 // If require_constant, produce a NULL if a singleton is not possible. |
| 10278 | 916 static const TypeOopPtr* make_from_constant(ciObject* o, |
| 917 bool require_constant = false, | |
| 918 bool not_null_elements = false); | |
| 0 | 919 |
| 920 // Make a generic (unclassed) pointer to an oop. | |
| 12966 | 921 static const TypeOopPtr* make(PTR ptr, int offset, int instance_id, const TypeOopPtr* speculative); |
| 0 | 922 |
| 923 ciObject* const_oop() const { return _const_oop; } | |
| 924 virtual ciKlass* klass() const { return _klass; } | |
| 925 bool klass_is_exact() const { return _klass_is_exact; } | |
| 163 | 926 |
| 927 // Returns true if this pointer points at memory which contains a | |
| 928 // compressed oop references. | |
| 929 bool is_ptr_to_narrowoop_nv() const { return _is_ptr_to_narrowoop; } | |
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930 bool is_ptr_to_narrowklass_nv() const { return _is_ptr_to_narrowklass; } |
| 10278 | 931 bool is_ptr_to_boxed_value() const { return _is_ptr_to_boxed_value; } |
| 223 | 932 bool is_known_instance() const { return _instance_id > 0; } |
| 933 int instance_id() const { return _instance_id; } | |
| 934 bool is_known_instance_field() const { return is_known_instance() && _offset >= 0; } | |
| 12966 | 935 const TypeOopPtr* speculative() const { return _speculative; } |
| 0 | 936 |
| 937 virtual intptr_t get_con() const; | |
| 938 | |
| 939 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 940 | |
| 941 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 942 | |
| 223 | 943 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
| 0 | 944 |
| 945 // corresponding pointer to klass, for a given instance | |
| 946 const TypeKlassPtr* as_klass_type() const; | |
| 947 | |
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948 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 12966 | 949 // Return same type without a speculative part |
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950 virtual const Type* remove_speculative() const; |
| 0 | 951 |
| 12966 | 952 virtual const Type *xmeet(const Type *t) const; |
| 0 | 953 virtual const Type *xdual() const; // Compute dual right now. |
| 12966 | 954 // the core of the computation of the meet for TypeOopPtr and for its subclasses |
| 955 virtual const Type *xmeet_helper(const Type *t) const; | |
| 0 | 956 |
| 957 // Convenience common pre-built type. | |
| 958 static const TypeOopPtr *BOTTOM; | |
| 959 #ifndef PRODUCT | |
| 960 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; | |
| 961 #endif | |
| 12966 | 962 |
| 963 // Return the speculative type if any | |
| 964 ciKlass* speculative_type() const { | |
| 965 if (_speculative != NULL) { | |
| 966 const TypeOopPtr* speculative = _speculative->join(this)->is_oopptr(); | |
| 967 if (speculative->klass_is_exact()) { | |
| 968 return speculative->klass(); | |
| 969 } | |
| 970 } | |
| 971 return NULL; | |
| 972 } | |
| 0 | 973 }; |
| 974 | |
| 975 //------------------------------TypeInstPtr------------------------------------ | |
| 976 // Class of Java object pointers, pointing either to non-array Java instances | |
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977 // or to a Klass* (including array klasses). |
| 0 | 978 class TypeInstPtr : public TypeOopPtr { |
| 12966 | 979 TypeInstPtr(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id, const TypeOopPtr* speculative); |
| 0 | 980 virtual bool eq( const Type *t ) const; |
| 981 virtual int hash() const; // Type specific hashing | |
| 982 | |
| 983 ciSymbol* _name; // class name | |
| 984 | |
| 985 public: | |
| 986 ciSymbol* name() const { return _name; } | |
| 987 | |
| 988 bool is_loaded() const { return _klass->is_loaded(); } | |
| 989 | |
| 990 // Make a pointer to a constant oop. | |
| 991 static const TypeInstPtr *make(ciObject* o) { | |
| 12966 | 992 return make(TypePtr::Constant, o->klass(), true, o, 0, InstanceBot); |
| 0 | 993 } |
| 994 // Make a pointer to a constant oop with offset. | |
| 995 static const TypeInstPtr *make(ciObject* o, int offset) { | |
| 12966 | 996 return make(TypePtr::Constant, o->klass(), true, o, offset, InstanceBot); |
| 0 | 997 } |
| 998 | |
| 999 // Make a pointer to some value of type klass. | |
| 1000 static const TypeInstPtr *make(PTR ptr, ciKlass* klass) { | |
| 12966 | 1001 return make(ptr, klass, false, NULL, 0, InstanceBot); |
| 0 | 1002 } |
| 1003 | |
| 1004 // Make a pointer to some non-polymorphic value of exactly type klass. | |
| 1005 static const TypeInstPtr *make_exact(PTR ptr, ciKlass* klass) { | |
| 12966 | 1006 return make(ptr, klass, true, NULL, 0, InstanceBot); |
| 0 | 1007 } |
| 1008 | |
| 1009 // Make a pointer to some value of type klass with offset. | |
| 1010 static const TypeInstPtr *make(PTR ptr, ciKlass* klass, int offset) { | |
| 12966 | 1011 return make(ptr, klass, false, NULL, offset, InstanceBot); |
| 0 | 1012 } |
| 1013 | |
| 1014 // Make a pointer to an oop. | |
| 12966 | 1015 static const TypeInstPtr *make(PTR ptr, ciKlass* k, bool xk, ciObject* o, int offset, int instance_id = InstanceBot, const TypeOopPtr* speculative = NULL); |
| 0 | 1016 |
| 10278 | 1017 /** Create constant type for a constant boxed value */ |
| 1018 const Type* get_const_boxed_value() const; | |
| 1019 | |
| 0 | 1020 // If this is a java.lang.Class constant, return the type for it or NULL. |
| 1021 // Pass to Type::get_const_type to turn it to a type, which will usually | |
| 1022 // be a TypeInstPtr, but may also be a TypeInt::INT for int.class, etc. | |
| 1023 ciType* java_mirror_type() const; | |
| 1024 | |
| 1025 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 1026 | |
| 1027 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 1028 | |
| 223 | 1029 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
| 0 | 1030 |
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1031 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 12966 | 1032 // Return same type without a speculative part |
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1033 virtual const Type* remove_speculative() const; |
| 0 | 1034 |
| 12966 | 1035 // the core of the computation of the meet of 2 types |
| 1036 virtual const Type *xmeet_helper(const Type *t) const; | |
| 0 | 1037 virtual const TypeInstPtr *xmeet_unloaded( const TypeInstPtr *t ) const; |
| 1038 virtual const Type *xdual() const; // Compute dual right now. | |
| 1039 | |
| 1040 // Convenience common pre-built types. | |
| 1041 static const TypeInstPtr *NOTNULL; | |
| 1042 static const TypeInstPtr *BOTTOM; | |
| 1043 static const TypeInstPtr *MIRROR; | |
| 1044 static const TypeInstPtr *MARK; | |
| 1045 static const TypeInstPtr *KLASS; | |
| 1046 #ifndef PRODUCT | |
| 1047 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 1048 #endif | |
| 1049 }; | |
| 1050 | |
| 1051 //------------------------------TypeAryPtr------------------------------------- | |
| 1052 // Class of Java array pointers | |
| 1053 class TypeAryPtr : public TypeOopPtr { | |
| 10278 | 1054 TypeAryPtr( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, |
| 12966 | 1055 int offset, int instance_id, bool is_autobox_cache, const TypeOopPtr* speculative) |
| 1056 : TypeOopPtr(AryPtr,ptr,k,xk,o,offset, instance_id, speculative), | |
| 10278 | 1057 _ary(ary), |
| 1058 _is_autobox_cache(is_autobox_cache) | |
| 1059 { | |
| 1761 | 1060 #ifdef ASSERT |
| 1061 if (k != NULL) { | |
| 1062 // Verify that specified klass and TypeAryPtr::klass() follow the same rules. | |
| 1063 ciKlass* ck = compute_klass(true); | |
| 1792 | 1064 if (k != ck) { |
| 1761 | 1065 this->dump(); tty->cr(); |
| 1066 tty->print(" k: "); | |
| 1067 k->print(); tty->cr(); | |
| 1068 tty->print("ck: "); | |
| 1069 if (ck != NULL) ck->print(); | |
| 1070 else tty->print("<NULL>"); | |
| 1071 tty->cr(); | |
| 1072 assert(false, "unexpected TypeAryPtr::_klass"); | |
| 1073 } | |
| 1074 } | |
| 1075 #endif | |
| 1076 } | |
| 0 | 1077 virtual bool eq( const Type *t ) const; |
| 1078 virtual int hash() const; // Type specific hashing | |
| 1079 const TypeAry *_ary; // Array we point into | |
| 10278 | 1080 const bool _is_autobox_cache; |
| 0 | 1081 |
| 1761 | 1082 ciKlass* compute_klass(DEBUG_ONLY(bool verify = false)) const; |
| 1083 | |
| 0 | 1084 public: |
| 1085 // Accessors | |
| 1086 ciKlass* klass() const; | |
| 1087 const TypeAry* ary() const { return _ary; } | |
| 1088 const Type* elem() const { return _ary->_elem; } | |
| 1089 const TypeInt* size() const { return _ary->_size; } | |
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1090 bool is_stable() const { return _ary->_stable; } |
| 0 | 1091 |
| 10278 | 1092 bool is_autobox_cache() const { return _is_autobox_cache; } |
| 1093 | |
| 12966 | 1094 static const TypeAryPtr *make( PTR ptr, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id = InstanceBot, const TypeOopPtr* speculative = NULL); |
| 0 | 1095 // Constant pointer to array |
| 12966 | 1096 static const TypeAryPtr *make( PTR ptr, ciObject* o, const TypeAry *ary, ciKlass* k, bool xk, int offset, int instance_id = InstanceBot, const TypeOopPtr* speculative = NULL, bool is_autobox_cache = false); |
| 0 | 1097 |
| 1098 // Return a 'ptr' version of this type | |
| 1099 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 1100 | |
| 1101 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 1102 | |
| 223 | 1103 virtual const TypeOopPtr *cast_to_instance_id(int instance_id) const; |
| 0 | 1104 |
| 1105 virtual const TypeAryPtr* cast_to_size(const TypeInt* size) const; | |
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1106 virtual const TypeInt* narrow_size_type(const TypeInt* size) const; |
| 0 | 1107 |
| 1108 virtual bool empty(void) const; // TRUE if type is vacuous | |
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1109 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 12966 | 1110 // Return same type without a speculative part |
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1111 virtual const Type* remove_speculative() const; |
| 0 | 1112 |
| 12966 | 1113 // the core of the computation of the meet of 2 types |
| 1114 virtual const Type *xmeet_helper(const Type *t) const; | |
| 0 | 1115 virtual const Type *xdual() const; // Compute dual right now. |
| 1116 | |
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1117 const TypeAryPtr* cast_to_stable(bool stable, int stable_dimension = 1) const; |
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1118 int stable_dimension() const; |
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1119 |
| 0 | 1120 // Convenience common pre-built types. |
| 1121 static const TypeAryPtr *RANGE; | |
| 1122 static const TypeAryPtr *OOPS; | |
| 163 | 1123 static const TypeAryPtr *NARROWOOPS; |
| 0 | 1124 static const TypeAryPtr *BYTES; |
| 1125 static const TypeAryPtr *SHORTS; | |
| 1126 static const TypeAryPtr *CHARS; | |
| 1127 static const TypeAryPtr *INTS; | |
| 1128 static const TypeAryPtr *LONGS; | |
| 1129 static const TypeAryPtr *FLOATS; | |
| 1130 static const TypeAryPtr *DOUBLES; | |
| 1131 // selects one of the above: | |
| 1132 static const TypeAryPtr *get_array_body_type(BasicType elem) { | |
| 1133 assert((uint)elem <= T_CONFLICT && _array_body_type[elem] != NULL, "bad elem type"); | |
| 1134 return _array_body_type[elem]; | |
| 1135 } | |
| 1136 static const TypeAryPtr *_array_body_type[T_CONFLICT+1]; | |
| 1137 // sharpen the type of an int which is used as an array size | |
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1138 #ifdef ASSERT |
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1139 // One type is interface, the other is oop |
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1140 virtual bool interface_vs_oop(const Type *t) const; |
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1141 #endif |
| 0 | 1142 #ifndef PRODUCT |
| 1143 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 1144 #endif | |
| 1145 }; | |
| 1146 | |
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1147 //------------------------------TypeMetadataPtr------------------------------------- |
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1148 // Some kind of metadata, either Method*, MethodData* or CPCacheOop |
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1149 class TypeMetadataPtr : public TypePtr { |
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1150 protected: |
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1151 TypeMetadataPtr(PTR ptr, ciMetadata* metadata, int offset); |
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1152 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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1153 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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1154 public: |
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1155 virtual bool eq( const Type *t ) const; |
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1156 virtual int hash() const; // Type specific hashing |
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1157 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1158 |
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1159 private: |
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1160 ciMetadata* _metadata; |
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1161 |
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1162 public: |
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1163 static const TypeMetadataPtr* make(PTR ptr, ciMetadata* m, int offset); |
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1164 |
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1165 static const TypeMetadataPtr* make(ciMethod* m); |
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1166 static const TypeMetadataPtr* make(ciMethodData* m); |
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1167 |
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1168 ciMetadata* metadata() const { return _metadata; } |
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1169 |
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1170 virtual const Type *cast_to_ptr_type(PTR ptr) const; |
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1171 |
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1172 virtual const TypePtr *add_offset( intptr_t offset ) const; |
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1173 |
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1174 virtual const Type *xmeet( const Type *t ) const; |
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1175 virtual const Type *xdual() const; // Compute dual right now. |
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1176 |
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1177 virtual intptr_t get_con() const; |
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1178 |
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1179 // Convenience common pre-built types. |
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1180 static const TypeMetadataPtr *BOTTOM; |
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1181 |
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1182 #ifndef PRODUCT |
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1183 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1184 #endif |
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1185 }; |
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1186 |
| 0 | 1187 //------------------------------TypeKlassPtr----------------------------------- |
| 1188 // Class of Java Klass pointers | |
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1189 class TypeKlassPtr : public TypePtr { |
| 0 | 1190 TypeKlassPtr( PTR ptr, ciKlass* klass, int offset ); |
| 1191 | |
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1192 protected: |
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1193 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
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1194 public: |
| 0 | 1195 virtual bool eq( const Type *t ) const; |
| 1196 virtual int hash() const; // Type specific hashing | |
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1197 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1198 private: |
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1199 |
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1200 static const TypeKlassPtr* make_from_klass_common(ciKlass* klass, bool klass_change, bool try_for_exact); |
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1201 |
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1202 ciKlass* _klass; |
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1203 |
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1204 // Does the type exclude subclasses of the klass? (Inexact == polymorphic.) |
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1205 bool _klass_is_exact; |
| 0 | 1206 |
| 1207 public: | |
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1208 ciSymbol* name() const { return klass()->name(); } |
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1209 |
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1210 ciKlass* klass() const { return _klass; } |
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1211 bool klass_is_exact() const { return _klass_is_exact; } |
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1212 |
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1213 bool is_loaded() const { return klass()->is_loaded(); } |
| 0 | 1214 |
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1215 // Creates a type given a klass. Correctly handles multi-dimensional arrays |
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1216 // Respects UseUniqueSubclasses. |
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1217 // If the klass is final, the resulting type will be exact. |
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1218 static const TypeKlassPtr* make_from_klass(ciKlass* klass) { |
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1219 return make_from_klass_common(klass, true, false); |
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1220 } |
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1221 // Same as before, but will produce an exact type, even if |
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1222 // the klass is not final, as long as it has exactly one implementation. |
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1223 static const TypeKlassPtr* make_from_klass_unique(ciKlass* klass) { |
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1224 return make_from_klass_common(klass, true, true); |
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1225 } |
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1226 // Same as before, but does not respects UseUniqueSubclasses. |
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1227 // Use this only for creating array element types. |
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1228 static const TypeKlassPtr* make_from_klass_raw(ciKlass* klass) { |
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1229 return make_from_klass_common(klass, false, false); |
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1230 } |
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1231 |
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1232 // Make a generic (unclassed) pointer to metadata. |
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1233 static const TypeKlassPtr* make(PTR ptr, int offset); |
| 555 | 1234 |
| 0 | 1235 // ptr to klass 'k' |
| 1236 static const TypeKlassPtr *make( ciKlass* k ) { return make( TypePtr::Constant, k, 0); } | |
| 1237 // ptr to klass 'k' with offset | |
| 1238 static const TypeKlassPtr *make( ciKlass* k, int offset ) { return make( TypePtr::Constant, k, offset); } | |
| 1239 // ptr to klass 'k' or sub-klass | |
| 1240 static const TypeKlassPtr *make( PTR ptr, ciKlass* k, int offset); | |
| 1241 | |
| 1242 virtual const Type *cast_to_ptr_type(PTR ptr) const; | |
| 1243 | |
| 1244 virtual const Type *cast_to_exactness(bool klass_is_exact) const; | |
| 1245 | |
| 1246 // corresponding pointer to instance, for a given class | |
| 1247 const TypeOopPtr* as_instance_type() const; | |
| 1248 | |
|
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1249 virtual const TypePtr *add_offset( intptr_t offset ) const; |
| 0 | 1250 virtual const Type *xmeet( const Type *t ) const; |
| 1251 virtual const Type *xdual() const; // Compute dual right now. | |
| 1252 | |
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1253 virtual intptr_t get_con() const; |
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1254 |
| 0 | 1255 // Convenience common pre-built types. |
| 1256 static const TypeKlassPtr* OBJECT; // Not-null object klass or below | |
| 1257 static const TypeKlassPtr* OBJECT_OR_NULL; // Maybe-null version of same | |
| 1258 #ifndef PRODUCT | |
| 1259 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 1260 #endif | |
| 1261 }; | |
| 1262 | |
|
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1263 class TypeNarrowPtr : public Type { |
|
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1264 protected: |
|
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1265 const TypePtr* _ptrtype; // Could be TypePtr::NULL_PTR |
|
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1266 |
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1267 TypeNarrowPtr(TYPES t, const TypePtr* ptrtype): _ptrtype(ptrtype), |
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1268 Type(t) { |
|
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1269 assert(ptrtype->offset() == 0 || |
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1270 ptrtype->offset() == OffsetBot || |
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1271 ptrtype->offset() == OffsetTop, "no real offsets"); |
|
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1272 } |
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1273 |
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1274 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const = 0; |
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1275 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const = 0; |
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1276 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const = 0; |
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1277 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const = 0; |
|
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1278 // Do not allow interface-vs.-noninterface joins to collapse to top. |
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1279 virtual const Type *filter_helper(const Type *kills, bool include_speculative) const; |
|
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1280 public: |
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1281 virtual bool eq( const Type *t ) const; |
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1282 virtual int hash() const; // Type specific hashing |
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1283 virtual bool singleton(void) const; // TRUE if type is a singleton |
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1284 |
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1285 virtual const Type *xmeet( const Type *t ) const; |
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1286 virtual const Type *xdual() const; // Compute dual right now. |
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1287 |
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1288 virtual intptr_t get_con() const; |
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1289 |
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1290 virtual bool empty(void) const; // TRUE if type is vacuous |
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1291 |
|
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1292 // returns the equivalent ptr type for this compressed pointer |
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1293 const TypePtr *get_ptrtype() const { |
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1294 return _ptrtype; |
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1295 } |
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1296 |
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1297 #ifndef PRODUCT |
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1298 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1299 #endif |
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1300 }; |
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1301 |
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1302 //------------------------------TypeNarrowOop---------------------------------- |
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1303 // A compressed reference to some kind of Oop. This type wraps around |
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1304 // a preexisting TypeOopPtr and forwards most of it's operations to |
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1305 // the underlying type. It's only real purpose is to track the |
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1306 // oopness of the compressed oop value when we expose the conversion |
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1307 // between the normal and the compressed form. |
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1308 class TypeNarrowOop : public TypeNarrowPtr { |
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1309 protected: |
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1310 TypeNarrowOop( const TypePtr* ptrtype): TypeNarrowPtr(NarrowOop, ptrtype) { |
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1311 } |
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1312 |
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1313 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { |
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1314 return t->isa_narrowoop(); |
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1315 } |
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1316 |
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1317 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { |
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1318 return t->is_narrowoop(); |
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1319 } |
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1320 |
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1321 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { |
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1322 return new TypeNarrowOop(t); |
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1323 } |
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1324 |
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1325 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { |
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1326 return (const TypeNarrowPtr*)((new TypeNarrowOop(t))->hashcons()); |
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1327 } |
|
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1328 |
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1329 public: |
|
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1330 |
|
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1331 static const TypeNarrowOop *make( const TypePtr* type); |
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1332 |
|
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1333 static const TypeNarrowOop* make_from_constant(ciObject* con, bool require_constant = false) { |
|
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1334 return make(TypeOopPtr::make_from_constant(con, require_constant)); |
|
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1335 } |
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1336 |
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1337 static const TypeNarrowOop *BOTTOM; |
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1338 static const TypeNarrowOop *NULL_PTR; |
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1339 |
|
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1340 virtual const Type* remove_speculative() const { |
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1341 return make(_ptrtype->remove_speculative()->is_ptr()); |
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1342 } |
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1343 |
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1344 #ifndef PRODUCT |
|
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1345 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1346 #endif |
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1347 }; |
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1348 |
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1349 //------------------------------TypeNarrowKlass---------------------------------- |
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1350 // A compressed reference to klass pointer. This type wraps around a |
|
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1351 // preexisting TypeKlassPtr and forwards most of it's operations to |
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1352 // the underlying type. |
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1353 class TypeNarrowKlass : public TypeNarrowPtr { |
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1354 protected: |
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1355 TypeNarrowKlass( const TypePtr* ptrtype): TypeNarrowPtr(NarrowKlass, ptrtype) { |
|
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1356 } |
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1357 |
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1358 virtual const TypeNarrowPtr *isa_same_narrowptr(const Type *t) const { |
|
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1359 return t->isa_narrowklass(); |
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1360 } |
|
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1361 |
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1362 virtual const TypeNarrowPtr *is_same_narrowptr(const Type *t) const { |
|
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1363 return t->is_narrowklass(); |
|
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1364 } |
|
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1365 |
|
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1366 virtual const TypeNarrowPtr *make_same_narrowptr(const TypePtr *t) const { |
|
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1367 return new TypeNarrowKlass(t); |
|
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1368 } |
|
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1369 |
|
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1370 virtual const TypeNarrowPtr *make_hash_same_narrowptr(const TypePtr *t) const { |
|
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1371 return (const TypeNarrowPtr*)((new TypeNarrowKlass(t))->hashcons()); |
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1372 } |
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1373 |
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1374 public: |
|
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1375 static const TypeNarrowKlass *make( const TypePtr* type); |
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1376 |
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1377 // static const TypeNarrowKlass *BOTTOM; |
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1378 static const TypeNarrowKlass *NULL_PTR; |
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1379 |
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1380 #ifndef PRODUCT |
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1381 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; |
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1382 #endif |
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1383 }; |
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1384 |
| 0 | 1385 //------------------------------TypeFunc--------------------------------------- |
| 1386 // Class of Array Types | |
| 1387 class TypeFunc : public Type { | |
| 1388 TypeFunc( const TypeTuple *domain, const TypeTuple *range ) : Type(Function), _domain(domain), _range(range) {} | |
| 1389 virtual bool eq( const Type *t ) const; | |
| 1390 virtual int hash() const; // Type specific hashing | |
| 1391 virtual bool singleton(void) const; // TRUE if type is a singleton | |
| 1392 virtual bool empty(void) const; // TRUE if type is vacuous | |
| 1393 public: | |
| 1394 // Constants are shared among ADLC and VM | |
| 1395 enum { Control = AdlcVMDeps::Control, | |
| 1396 I_O = AdlcVMDeps::I_O, | |
| 1397 Memory = AdlcVMDeps::Memory, | |
| 1398 FramePtr = AdlcVMDeps::FramePtr, | |
| 1399 ReturnAdr = AdlcVMDeps::ReturnAdr, | |
| 1400 Parms = AdlcVMDeps::Parms | |
| 1401 }; | |
| 1402 | |
| 1403 const TypeTuple* const _domain; // Domain of inputs | |
| 1404 const TypeTuple* const _range; // Range of results | |
| 1405 | |
| 1406 // Accessors: | |
| 1407 const TypeTuple* domain() const { return _domain; } | |
| 1408 const TypeTuple* range() const { return _range; } | |
| 1409 | |
| 1410 static const TypeFunc *make(ciMethod* method); | |
| 1411 static const TypeFunc *make(ciSignature signature, const Type* extra); | |
| 1412 static const TypeFunc *make(const TypeTuple* domain, const TypeTuple* range); | |
| 1413 | |
| 1414 virtual const Type *xmeet( const Type *t ) const; | |
| 1415 virtual const Type *xdual() const; // Compute dual right now. | |
| 1416 | |
| 1417 BasicType return_type() const; | |
| 1418 | |
| 1419 #ifndef PRODUCT | |
| 1420 virtual void dump2( Dict &d, uint depth, outputStream *st ) const; // Specialized per-Type dumping | |
| 1421 #endif | |
| 1422 // Convenience common pre-built types. | |
| 1423 }; | |
| 1424 | |
| 1425 //------------------------------accessors-------------------------------------- | |
| 163 | 1426 inline bool Type::is_ptr_to_narrowoop() const { |
| 1427 #ifdef _LP64 | |
| 1428 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowoop_nv()); | |
| 1429 #else | |
| 1430 return false; | |
| 1431 #endif | |
| 1432 } | |
| 1433 | |
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1434 inline bool Type::is_ptr_to_narrowklass() const { |
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1435 #ifdef _LP64 |
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1436 return (isa_oopptr() != NULL && is_oopptr()->is_ptr_to_narrowklass_nv()); |
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1437 #else |
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1438 return false; |
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1439 #endif |
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1440 } |
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1441 |
| 0 | 1442 inline float Type::getf() const { |
| 1443 assert( _base == FloatCon, "Not a FloatCon" ); | |
| 1444 return ((TypeF*)this)->_f; | |
| 1445 } | |
| 1446 | |
| 1447 inline double Type::getd() const { | |
| 1448 assert( _base == DoubleCon, "Not a DoubleCon" ); | |
| 1449 return ((TypeD*)this)->_d; | |
| 1450 } | |
| 1451 | |
| 1452 inline const TypeInt *Type::is_int() const { | |
| 1453 assert( _base == Int, "Not an Int" ); | |
| 1454 return (TypeInt*)this; | |
| 1455 } | |
| 1456 | |
| 1457 inline const TypeInt *Type::isa_int() const { | |
| 1458 return ( _base == Int ? (TypeInt*)this : NULL); | |
| 1459 } | |
| 1460 | |
| 1461 inline const TypeLong *Type::is_long() const { | |
| 1462 assert( _base == Long, "Not a Long" ); | |
| 1463 return (TypeLong*)this; | |
| 1464 } | |
| 1465 | |
| 1466 inline const TypeLong *Type::isa_long() const { | |
| 1467 return ( _base == Long ? (TypeLong*)this : NULL); | |
| 1468 } | |
| 1469 | |
|
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1470 inline const TypeF *Type::isa_float() const { |
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1471 return ((_base == FloatTop || |
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1472 _base == FloatCon || |
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1473 _base == FloatBot) ? (TypeF*)this : NULL); |
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1474 } |
|
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1475 |
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1476 inline const TypeF *Type::is_float_constant() const { |
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1477 assert( _base == FloatCon, "Not a Float" ); |
|
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1478 return (TypeF*)this; |
|
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|
1479 } |
|
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|
1480 |
|
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|
1481 inline const TypeF *Type::isa_float_constant() const { |
|
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|
1482 return ( _base == FloatCon ? (TypeF*)this : NULL); |
|
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|
1483 } |
|
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|
1484 |
|
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|
1485 inline const TypeD *Type::isa_double() const { |
|
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|
1486 return ((_base == DoubleTop || |
|
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|
1487 _base == DoubleCon || |
|
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|
1488 _base == DoubleBot) ? (TypeD*)this : NULL); |
|
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|
1489 } |
|
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|
1490 |
|
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|
1491 inline const TypeD *Type::is_double_constant() const { |
|
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|
1492 assert( _base == DoubleCon, "Not a Double" ); |
|
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|
1493 return (TypeD*)this; |
|
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|
1494 } |
|
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|
1495 |
|
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|
1496 inline const TypeD *Type::isa_double_constant() const { |
|
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|
1497 return ( _base == DoubleCon ? (TypeD*)this : NULL); |
|
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|
1498 } |
|
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|
1499 |
| 0 | 1500 inline const TypeTuple *Type::is_tuple() const { |
| 1501 assert( _base == Tuple, "Not a Tuple" ); | |
| 1502 return (TypeTuple*)this; | |
| 1503 } | |
| 1504 | |
| 1505 inline const TypeAry *Type::is_ary() const { | |
| 1506 assert( _base == Array , "Not an Array" ); | |
| 1507 return (TypeAry*)this; | |
| 1508 } | |
| 1509 | |
|
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|
1510 inline const TypeVect *Type::is_vect() const { |
|
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|
1511 assert( _base >= VectorS && _base <= VectorY, "Not a Vector" ); |
|
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|
1512 return (TypeVect*)this; |
|
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|
1513 } |
|
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|
1514 |
|
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|
1515 inline const TypeVect *Type::isa_vect() const { |
|
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|
1516 return (_base >= VectorS && _base <= VectorY) ? (TypeVect*)this : NULL; |
|
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|
1517 } |
|
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|
1518 |
| 0 | 1519 inline const TypePtr *Type::is_ptr() const { |
| 1520 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
| 1521 assert(_base >= AnyPtr && _base <= KlassPtr, "Not a pointer"); | |
| 1522 return (TypePtr*)this; | |
| 1523 } | |
| 1524 | |
| 1525 inline const TypePtr *Type::isa_ptr() const { | |
| 1526 // AnyPtr is the first Ptr and KlassPtr the last, with no non-ptrs between. | |
| 1527 return (_base >= AnyPtr && _base <= KlassPtr) ? (TypePtr*)this : NULL; | |
| 1528 } | |
| 1529 | |
| 1530 inline const TypeOopPtr *Type::is_oopptr() const { | |
| 1531 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
|
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|
1532 assert(_base >= OopPtr && _base <= AryPtr, "Not a Java pointer" ) ; |
| 0 | 1533 return (TypeOopPtr*)this; |
| 1534 } | |
| 1535 | |
| 1536 inline const TypeOopPtr *Type::isa_oopptr() const { | |
| 1537 // OopPtr is the first and KlassPtr the last, with no non-oops between. | |
|
6725
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|
1538 return (_base >= OopPtr && _base <= AryPtr) ? (TypeOopPtr*)this : NULL; |
| 0 | 1539 } |
| 1540 | |
|
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|
1541 inline const TypeRawPtr *Type::isa_rawptr() const { |
|
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|
1542 return (_base == RawPtr) ? (TypeRawPtr*)this : NULL; |
|
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|
1543 } |
|
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|
1544 |
| 0 | 1545 inline const TypeRawPtr *Type::is_rawptr() const { |
| 1546 assert( _base == RawPtr, "Not a raw pointer" ); | |
| 1547 return (TypeRawPtr*)this; | |
| 1548 } | |
| 1549 | |
| 1550 inline const TypeInstPtr *Type::isa_instptr() const { | |
| 1551 return (_base == InstPtr) ? (TypeInstPtr*)this : NULL; | |
| 1552 } | |
| 1553 | |
| 1554 inline const TypeInstPtr *Type::is_instptr() const { | |
| 1555 assert( _base == InstPtr, "Not an object pointer" ); | |
| 1556 return (TypeInstPtr*)this; | |
| 1557 } | |
| 1558 | |
| 1559 inline const TypeAryPtr *Type::isa_aryptr() const { | |
| 1560 return (_base == AryPtr) ? (TypeAryPtr*)this : NULL; | |
| 1561 } | |
| 1562 | |
| 1563 inline const TypeAryPtr *Type::is_aryptr() const { | |
| 1564 assert( _base == AryPtr, "Not an array pointer" ); | |
| 1565 return (TypeAryPtr*)this; | |
| 1566 } | |
| 1567 | |
|
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|
1568 inline const TypeNarrowOop *Type::is_narrowoop() const { |
|
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|
1569 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
|
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|
1570 assert(_base == NarrowOop, "Not a narrow oop" ) ; |
|
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|
1571 return (TypeNarrowOop*)this; |
|
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|
1572 } |
|
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|
1573 |
|
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|
1574 inline const TypeNarrowOop *Type::isa_narrowoop() const { |
|
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|
1575 // OopPtr is the first and KlassPtr the last, with no non-oops between. |
|
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|
1576 return (_base == NarrowOop) ? (TypeNarrowOop*)this : NULL; |
|
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|
1577 } |
|
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|
1578 |
|
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|
1579 inline const TypeNarrowKlass *Type::is_narrowklass() const { |
|
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|
1580 assert(_base == NarrowKlass, "Not a narrow oop" ) ; |
|
8e47bac5643a
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|
1581 return (TypeNarrowKlass*)this; |
|
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|
1582 } |
|
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|
1583 |
|
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|
1584 inline const TypeNarrowKlass *Type::isa_narrowklass() const { |
|
8e47bac5643a
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changeset
|
1585 return (_base == NarrowKlass) ? (TypeNarrowKlass*)this : NULL; |
|
8e47bac5643a
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|
1586 } |
|
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|
1587 |
|
6725
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|
1588 inline const TypeMetadataPtr *Type::is_metadataptr() const { |
|
da91efe96a93
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|
1589 // MetadataPtr is the first and CPCachePtr the last |
|
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|
1590 assert(_base == MetadataPtr, "Not a metadata pointer" ) ; |
|
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|
1591 return (TypeMetadataPtr*)this; |
|
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|
1592 } |
|
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|
1593 |
|
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|
1594 inline const TypeMetadataPtr *Type::isa_metadataptr() const { |
|
da91efe96a93
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|
1595 return (_base == MetadataPtr) ? (TypeMetadataPtr*)this : NULL; |
|
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|
1596 } |
|
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|
1597 |
| 0 | 1598 inline const TypeKlassPtr *Type::isa_klassptr() const { |
| 1599 return (_base == KlassPtr) ? (TypeKlassPtr*)this : NULL; | |
| 1600 } | |
| 1601 | |
| 1602 inline const TypeKlassPtr *Type::is_klassptr() const { | |
| 1603 assert( _base == KlassPtr, "Not a klass pointer" ); | |
| 1604 return (TypeKlassPtr*)this; | |
| 1605 } | |
| 1606 | |
|
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|
1607 inline const TypePtr* Type::make_ptr() const { |
|
827
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|
1608 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype() : |
|
6848
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|
1609 ((_base == NarrowKlass) ? is_narrowklass()->get_ptrtype() : |
|
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|
1610 (isa_ptr() ? is_ptr() : NULL)); |
|
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1611 } |
|
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|
1612 |
|
827
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|
1613 inline const TypeOopPtr* Type::make_oopptr() const { |
|
bf3489cc0aa0
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|
1614 return (_base == NarrowOop) ? is_narrowoop()->get_ptrtype()->is_oopptr() : is_oopptr(); |
|
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|
1615 } |
|
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|
1616 |
|
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|
1617 inline const TypeNarrowOop* Type::make_narrowoop() const { |
|
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|
1618 return (_base == NarrowOop) ? is_narrowoop() : |
|
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|
1619 (isa_ptr() ? TypeNarrowOop::make(is_ptr()) : NULL); |
|
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|
1620 } |
|
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|
1621 |
|
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|
1622 inline const TypeNarrowKlass* Type::make_narrowklass() const { |
|
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|
1623 return (_base == NarrowKlass) ? is_narrowklass() : |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
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|
1624 (isa_ptr() ? TypeNarrowKlass::make(is_ptr()) : NULL); |
|
8e47bac5643a
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|
1625 } |
|
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|
1626 |
| 0 | 1627 inline bool Type::is_floatingpoint() const { |
| 1628 if( (_base == FloatCon) || (_base == FloatBot) || | |
| 1629 (_base == DoubleCon) || (_base == DoubleBot) ) | |
| 1630 return true; | |
| 1631 return false; | |
| 1632 } | |
| 1633 | |
| 10278 | 1634 inline bool Type::is_ptr_to_boxing_obj() const { |
| 1635 const TypeInstPtr* tp = isa_instptr(); | |
| 1636 return (tp != NULL) && (tp->offset() == 0) && | |
| 1637 tp->klass()->is_instance_klass() && | |
| 1638 tp->klass()->as_instance_klass()->is_box_klass(); | |
| 1639 } | |
| 1640 | |
| 0 | 1641 |
| 1642 // =============================================================== | |
| 1643 // Things that need to be 64-bits in the 64-bit build but | |
| 1644 // 32-bits in the 32-bit build. Done this way to get full | |
| 1645 // optimization AND strong typing. | |
| 1646 #ifdef _LP64 | |
| 1647 | |
| 1648 // For type queries and asserts | |
| 1649 #define is_intptr_t is_long | |
| 1650 #define isa_intptr_t isa_long | |
| 1651 #define find_intptr_t_type find_long_type | |
| 1652 #define find_intptr_t_con find_long_con | |
| 1653 #define TypeX TypeLong | |
| 1654 #define Type_X Type::Long | |
| 1655 #define TypeX_X TypeLong::LONG | |
| 1656 #define TypeX_ZERO TypeLong::ZERO | |
| 1657 // For 'ideal_reg' machine registers | |
| 1658 #define Op_RegX Op_RegL | |
| 1659 // For phase->intcon variants | |
| 1660 #define MakeConX longcon | |
| 1661 #define ConXNode ConLNode | |
| 1662 // For array index arithmetic | |
| 1663 #define MulXNode MulLNode | |
| 1664 #define AndXNode AndLNode | |
| 1665 #define OrXNode OrLNode | |
| 1666 #define CmpXNode CmpLNode | |
| 1667 #define SubXNode SubLNode | |
| 1668 #define LShiftXNode LShiftLNode | |
| 1669 // For object size computation: | |
| 1670 #define AddXNode AddLNode | |
|
17
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|
1671 #define RShiftXNode RShiftLNode |
| 0 | 1672 // For card marks and hashcodes |
| 1673 #define URShiftXNode URShiftLNode | |
|
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|
1674 // UseOptoBiasInlining |
|
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|
1675 #define XorXNode XorLNode |
|
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|
1676 #define StoreXConditionalNode StoreLConditionalNode |
| 0 | 1677 // Opcodes |
| 1678 #define Op_LShiftX Op_LShiftL | |
| 1679 #define Op_AndX Op_AndL | |
| 1680 #define Op_AddX Op_AddL | |
| 1681 #define Op_SubX Op_SubL | |
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1682 #define Op_XorX Op_XorL |
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1683 #define Op_URShiftX Op_URShiftL |
| 0 | 1684 // conversions |
| 1685 #define ConvI2X(x) ConvI2L(x) | |
| 1686 #define ConvL2X(x) (x) | |
| 1687 #define ConvX2I(x) ConvL2I(x) | |
| 1688 #define ConvX2L(x) (x) | |
| 1689 | |
| 1690 #else | |
| 1691 | |
| 1692 // For type queries and asserts | |
| 1693 #define is_intptr_t is_int | |
| 1694 #define isa_intptr_t isa_int | |
| 1695 #define find_intptr_t_type find_int_type | |
| 1696 #define find_intptr_t_con find_int_con | |
| 1697 #define TypeX TypeInt | |
| 1698 #define Type_X Type::Int | |
| 1699 #define TypeX_X TypeInt::INT | |
| 1700 #define TypeX_ZERO TypeInt::ZERO | |
| 1701 // For 'ideal_reg' machine registers | |
| 1702 #define Op_RegX Op_RegI | |
| 1703 // For phase->intcon variants | |
| 1704 #define MakeConX intcon | |
| 1705 #define ConXNode ConINode | |
| 1706 // For array index arithmetic | |
| 1707 #define MulXNode MulINode | |
| 1708 #define AndXNode AndINode | |
| 1709 #define OrXNode OrINode | |
| 1710 #define CmpXNode CmpINode | |
| 1711 #define SubXNode SubINode | |
| 1712 #define LShiftXNode LShiftINode | |
| 1713 // For object size computation: | |
| 1714 #define AddXNode AddINode | |
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1715 #define RShiftXNode RShiftINode |
| 0 | 1716 // For card marks and hashcodes |
| 1717 #define URShiftXNode URShiftINode | |
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1718 // UseOptoBiasInlining |
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1719 #define XorXNode XorINode |
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1720 #define StoreXConditionalNode StoreIConditionalNode |
| 0 | 1721 // Opcodes |
| 1722 #define Op_LShiftX Op_LShiftI | |
| 1723 #define Op_AndX Op_AndI | |
| 1724 #define Op_AddX Op_AddI | |
| 1725 #define Op_SubX Op_SubI | |
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1726 #define Op_XorX Op_XorI |
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1727 #define Op_URShiftX Op_URShiftI |
| 0 | 1728 // conversions |
| 1729 #define ConvI2X(x) (x) | |
| 1730 #define ConvL2X(x) ConvL2I(x) | |
| 1731 #define ConvX2I(x) (x) | |
| 1732 #define ConvX2L(x) ConvI2L(x) | |
| 1733 | |
| 1734 #endif | |
| 1972 | 1735 |
| 1736 #endif // SHARE_VM_OPTO_TYPE_HPP |