Wed, 31 Aug 2011 16:46:11 -0700
7083786: dead various dead chunks of code
Reviewed-by: iveresov, kvn
duke@435 | 1 | /* |
stefank@2314 | 2 | * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_C1_C1_VALUETYPE_HPP |
stefank@2314 | 26 | #define SHARE_VM_C1_C1_VALUETYPE_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "c1/c1_Compilation.hpp" |
stefank@2314 | 29 | #include "ci/ciConstant.hpp" |
stefank@2314 | 30 | |
duke@435 | 31 | // type hierarchy |
duke@435 | 32 | class ValueType; |
duke@435 | 33 | class VoidType; |
duke@435 | 34 | class IntType; |
duke@435 | 35 | class IntConstant; |
duke@435 | 36 | class IntInterval; |
duke@435 | 37 | class LongType; |
duke@435 | 38 | class LongConstant; |
duke@435 | 39 | class FloatType; |
duke@435 | 40 | class FloatConstant; |
duke@435 | 41 | class DoubleType; |
duke@435 | 42 | class DoubleConstant; |
duke@435 | 43 | class ObjectType; |
duke@435 | 44 | class ObjectConstant; |
duke@435 | 45 | class ArrayType; |
duke@435 | 46 | class ArrayConstant; |
duke@435 | 47 | class InstanceType; |
duke@435 | 48 | class InstanceConstant; |
duke@435 | 49 | class ClassType; |
duke@435 | 50 | class ClassConstant; |
duke@435 | 51 | class AddressType; |
duke@435 | 52 | class AddressConstant; |
duke@435 | 53 | class IllegalType; |
duke@435 | 54 | |
duke@435 | 55 | |
duke@435 | 56 | // predefined types |
duke@435 | 57 | extern VoidType* voidType; |
duke@435 | 58 | extern IntType* intType; |
duke@435 | 59 | extern LongType* longType; |
duke@435 | 60 | extern FloatType* floatType; |
duke@435 | 61 | extern DoubleType* doubleType; |
duke@435 | 62 | extern ObjectType* objectType; |
duke@435 | 63 | extern ArrayType* arrayType; |
duke@435 | 64 | extern InstanceType* instanceType; |
duke@435 | 65 | extern ClassType* classType; |
duke@435 | 66 | extern AddressType* addressType; |
duke@435 | 67 | extern IllegalType* illegalType; |
duke@435 | 68 | |
duke@435 | 69 | |
duke@435 | 70 | // predefined constants |
duke@435 | 71 | extern IntConstant* intZero; |
duke@435 | 72 | extern IntConstant* intOne; |
duke@435 | 73 | extern ObjectConstant* objectNull; |
duke@435 | 74 | |
duke@435 | 75 | |
duke@435 | 76 | // tags |
duke@435 | 77 | enum ValueTag { |
duke@435 | 78 | // all legal tags must come first |
duke@435 | 79 | intTag, |
duke@435 | 80 | longTag, |
duke@435 | 81 | floatTag, |
duke@435 | 82 | doubleTag, |
duke@435 | 83 | objectTag, |
duke@435 | 84 | addressTag, |
duke@435 | 85 | number_of_legal_tags, |
duke@435 | 86 | // all other tags must follow afterwards |
duke@435 | 87 | voidTag = number_of_legal_tags, |
duke@435 | 88 | illegalTag, |
duke@435 | 89 | number_of_tags |
duke@435 | 90 | }; |
duke@435 | 91 | |
duke@435 | 92 | |
duke@435 | 93 | class ValueType: public CompilationResourceObj { |
duke@435 | 94 | private: |
duke@435 | 95 | const int _size; |
duke@435 | 96 | const ValueTag _tag; |
duke@435 | 97 | ValueType(); |
duke@435 | 98 | protected: |
duke@435 | 99 | ValueType(ValueTag tag, int size): _tag(tag), _size(size) {} |
duke@435 | 100 | |
duke@435 | 101 | public: |
duke@435 | 102 | // initialization |
iveresov@1939 | 103 | static void initialize(Arena* arena); |
duke@435 | 104 | |
duke@435 | 105 | // accessors |
duke@435 | 106 | virtual ValueType* base() const = 0; // the 'canonical' type (e.g., intType for an IntConstant) |
duke@435 | 107 | ValueTag tag() const { return _tag; } // the 'canonical' tag (useful for type matching) |
duke@435 | 108 | int size() const { // the size of an object of the type in words |
duke@435 | 109 | assert(_size > -1, "shouldn't be asking for size"); |
duke@435 | 110 | return _size; |
duke@435 | 111 | } |
duke@435 | 112 | virtual const char tchar() const = 0; // the type 'character' for printing |
duke@435 | 113 | virtual const char* name() const = 0; // the type name for printing |
duke@435 | 114 | virtual bool is_constant() const { return false; } |
duke@435 | 115 | |
duke@435 | 116 | // testers |
duke@435 | 117 | bool is_void() { return tag() == voidTag; } |
duke@435 | 118 | bool is_int() { return tag() == intTag; } |
duke@435 | 119 | bool is_long() { return tag() == longTag; } |
duke@435 | 120 | bool is_float() { return tag() == floatTag; } |
duke@435 | 121 | bool is_double() { return tag() == doubleTag; } |
duke@435 | 122 | bool is_object() { return as_ObjectType() != NULL; } |
duke@435 | 123 | bool is_array() { return as_ArrayType() != NULL; } |
duke@435 | 124 | bool is_instance() { return as_InstanceType() != NULL; } |
duke@435 | 125 | bool is_class() { return as_ClassType() != NULL; } |
duke@435 | 126 | bool is_address() { return as_AddressType() != NULL; } |
duke@435 | 127 | bool is_illegal() { return tag() == illegalTag; } |
duke@435 | 128 | |
duke@435 | 129 | bool is_int_kind() const { return tag() == intTag || tag() == longTag; } |
duke@435 | 130 | bool is_float_kind() const { return tag() == floatTag || tag() == doubleTag; } |
duke@435 | 131 | bool is_object_kind() const { return tag() == objectTag; } |
duke@435 | 132 | |
duke@435 | 133 | bool is_single_word() const { return _size == 1; } |
duke@435 | 134 | bool is_double_word() const { return _size == 2; } |
duke@435 | 135 | |
duke@435 | 136 | // casting |
duke@435 | 137 | virtual VoidType* as_VoidType() { return NULL; } |
duke@435 | 138 | virtual IntType* as_IntType() { return NULL; } |
duke@435 | 139 | virtual LongType* as_LongType() { return NULL; } |
duke@435 | 140 | virtual FloatType* as_FloatType() { return NULL; } |
duke@435 | 141 | virtual DoubleType* as_DoubleType() { return NULL; } |
duke@435 | 142 | virtual ObjectType* as_ObjectType() { return NULL; } |
duke@435 | 143 | virtual ArrayType* as_ArrayType() { return NULL; } |
duke@435 | 144 | virtual InstanceType* as_InstanceType() { return NULL; } |
duke@435 | 145 | virtual ClassType* as_ClassType() { return NULL; } |
duke@435 | 146 | virtual AddressType* as_AddressType() { return NULL; } |
duke@435 | 147 | virtual IllegalType* as_IllegalType() { return NULL; } |
duke@435 | 148 | |
duke@435 | 149 | virtual IntConstant* as_IntConstant() { return NULL; } |
duke@435 | 150 | virtual LongConstant* as_LongConstant() { return NULL; } |
duke@435 | 151 | virtual FloatConstant* as_FloatConstant() { return NULL; } |
duke@435 | 152 | virtual DoubleConstant* as_DoubleConstant() { return NULL; } |
duke@435 | 153 | virtual ObjectConstant* as_ObjectConstant() { return NULL; } |
duke@435 | 154 | virtual InstanceConstant* as_InstanceConstant(){ return NULL; } |
duke@435 | 155 | virtual ClassConstant* as_ClassConstant() { return NULL; } |
duke@435 | 156 | virtual ArrayConstant* as_ArrayConstant() { return NULL; } |
duke@435 | 157 | virtual AddressConstant* as_AddressConstant() { return NULL; } |
duke@435 | 158 | |
duke@435 | 159 | // type operations |
duke@435 | 160 | ValueType* meet(ValueType* y) const; |
duke@435 | 161 | ValueType* join(ValueType* y) const; |
duke@435 | 162 | |
duke@435 | 163 | // debugging |
duke@435 | 164 | void print(outputStream* s = tty) { s->print(name()); } |
duke@435 | 165 | }; |
duke@435 | 166 | |
duke@435 | 167 | |
duke@435 | 168 | class VoidType: public ValueType { |
duke@435 | 169 | public: |
duke@435 | 170 | VoidType(): ValueType(voidTag, 0) {} |
duke@435 | 171 | virtual ValueType* base() const { return voidType; } |
duke@435 | 172 | virtual const char tchar() const { return 'v'; } |
duke@435 | 173 | virtual const char* name() const { return "void"; } |
duke@435 | 174 | virtual VoidType* as_VoidType() { return this; } |
duke@435 | 175 | }; |
duke@435 | 176 | |
duke@435 | 177 | |
duke@435 | 178 | class IntType: public ValueType { |
duke@435 | 179 | public: |
duke@435 | 180 | IntType(): ValueType(intTag, 1) {} |
duke@435 | 181 | virtual ValueType* base() const { return intType; } |
duke@435 | 182 | virtual const char tchar() const { return 'i'; } |
duke@435 | 183 | virtual const char* name() const { return "int"; } |
duke@435 | 184 | virtual IntType* as_IntType() { return this; } |
duke@435 | 185 | }; |
duke@435 | 186 | |
duke@435 | 187 | |
duke@435 | 188 | class IntConstant: public IntType { |
duke@435 | 189 | private: |
duke@435 | 190 | jint _value; |
duke@435 | 191 | |
duke@435 | 192 | public: |
duke@435 | 193 | IntConstant(jint value) { _value = value; } |
duke@435 | 194 | |
duke@435 | 195 | jint value() const { return _value; } |
duke@435 | 196 | |
duke@435 | 197 | virtual bool is_constant() const { return true; } |
duke@435 | 198 | virtual IntConstant* as_IntConstant() { return this; } |
duke@435 | 199 | }; |
duke@435 | 200 | |
duke@435 | 201 | |
duke@435 | 202 | class IntInterval: public IntType { |
duke@435 | 203 | private: |
duke@435 | 204 | jint _beg; |
duke@435 | 205 | jint _end; |
duke@435 | 206 | |
duke@435 | 207 | public: |
duke@435 | 208 | IntInterval(jint beg, jint end) { |
duke@435 | 209 | assert(beg <= end, "illegal interval"); |
duke@435 | 210 | _beg = beg; |
duke@435 | 211 | _end = end; |
duke@435 | 212 | } |
duke@435 | 213 | |
duke@435 | 214 | jint beg() const { return _beg; } |
duke@435 | 215 | jint end() const { return _end; } |
duke@435 | 216 | |
duke@435 | 217 | virtual bool is_interval() const { return true; } |
duke@435 | 218 | }; |
duke@435 | 219 | |
duke@435 | 220 | |
duke@435 | 221 | class LongType: public ValueType { |
duke@435 | 222 | public: |
duke@435 | 223 | LongType(): ValueType(longTag, 2) {} |
duke@435 | 224 | virtual ValueType* base() const { return longType; } |
duke@435 | 225 | virtual const char tchar() const { return 'l'; } |
duke@435 | 226 | virtual const char* name() const { return "long"; } |
duke@435 | 227 | virtual LongType* as_LongType() { return this; } |
duke@435 | 228 | }; |
duke@435 | 229 | |
duke@435 | 230 | |
duke@435 | 231 | class LongConstant: public LongType { |
duke@435 | 232 | private: |
duke@435 | 233 | jlong _value; |
duke@435 | 234 | |
duke@435 | 235 | public: |
duke@435 | 236 | LongConstant(jlong value) { _value = value; } |
duke@435 | 237 | |
duke@435 | 238 | jlong value() const { return _value; } |
duke@435 | 239 | |
duke@435 | 240 | virtual bool is_constant() const { return true; } |
duke@435 | 241 | virtual LongConstant* as_LongConstant() { return this; } |
duke@435 | 242 | }; |
duke@435 | 243 | |
duke@435 | 244 | |
duke@435 | 245 | class FloatType: public ValueType { |
duke@435 | 246 | public: |
duke@435 | 247 | FloatType(): ValueType(floatTag, 1) {} |
duke@435 | 248 | virtual ValueType* base() const { return floatType; } |
duke@435 | 249 | virtual const char tchar() const { return 'f'; } |
duke@435 | 250 | virtual const char* name() const { return "float"; } |
duke@435 | 251 | virtual FloatType* as_FloatType() { return this; } |
duke@435 | 252 | }; |
duke@435 | 253 | |
duke@435 | 254 | |
duke@435 | 255 | class FloatConstant: public FloatType { |
duke@435 | 256 | private: |
duke@435 | 257 | jfloat _value; |
duke@435 | 258 | |
duke@435 | 259 | public: |
duke@435 | 260 | FloatConstant(jfloat value) { _value = value; } |
duke@435 | 261 | |
duke@435 | 262 | jfloat value() const { return _value; } |
duke@435 | 263 | |
duke@435 | 264 | virtual bool is_constant() const { return true; } |
duke@435 | 265 | virtual FloatConstant* as_FloatConstant() { return this; } |
duke@435 | 266 | }; |
duke@435 | 267 | |
duke@435 | 268 | |
duke@435 | 269 | class DoubleType: public ValueType { |
duke@435 | 270 | public: |
duke@435 | 271 | DoubleType(): ValueType(doubleTag, 2) {} |
duke@435 | 272 | virtual ValueType* base() const { return doubleType; } |
duke@435 | 273 | virtual const char tchar() const { return 'd'; } |
duke@435 | 274 | virtual const char* name() const { return "double"; } |
duke@435 | 275 | virtual DoubleType* as_DoubleType() { return this; } |
duke@435 | 276 | }; |
duke@435 | 277 | |
duke@435 | 278 | |
duke@435 | 279 | class DoubleConstant: public DoubleType { |
duke@435 | 280 | private: |
duke@435 | 281 | jdouble _value; |
duke@435 | 282 | |
duke@435 | 283 | public: |
duke@435 | 284 | DoubleConstant(jdouble value) { _value = value; } |
duke@435 | 285 | |
duke@435 | 286 | jdouble value() const { return _value; } |
duke@435 | 287 | |
duke@435 | 288 | virtual bool is_constant() const { return true; } |
duke@435 | 289 | virtual DoubleConstant* as_DoubleConstant() { return this; } |
duke@435 | 290 | }; |
duke@435 | 291 | |
duke@435 | 292 | |
duke@435 | 293 | class ObjectType: public ValueType { |
duke@435 | 294 | public: |
duke@435 | 295 | ObjectType(): ValueType(objectTag, 1) {} |
duke@435 | 296 | virtual ValueType* base() const { return objectType; } |
duke@435 | 297 | virtual const char tchar() const { return 'a'; } |
duke@435 | 298 | virtual const char* name() const { return "object"; } |
duke@435 | 299 | virtual ObjectType* as_ObjectType() { return this; } |
duke@435 | 300 | virtual ciObject* constant_value() const { ShouldNotReachHere(); return NULL; } |
duke@435 | 301 | bool is_loaded() const; |
duke@435 | 302 | jobject encoding() const; |
duke@435 | 303 | }; |
duke@435 | 304 | |
duke@435 | 305 | |
duke@435 | 306 | class ObjectConstant: public ObjectType { |
duke@435 | 307 | private: |
duke@435 | 308 | ciObject* _value; |
duke@435 | 309 | |
duke@435 | 310 | public: |
duke@435 | 311 | ObjectConstant(ciObject* value) { _value = value; } |
duke@435 | 312 | |
duke@435 | 313 | ciObject* value() const { return _value; } |
duke@435 | 314 | |
duke@435 | 315 | virtual bool is_constant() const { return true; } |
duke@435 | 316 | virtual ObjectConstant* as_ObjectConstant() { return this; } |
duke@435 | 317 | virtual ciObject* constant_value() const; |
duke@435 | 318 | }; |
duke@435 | 319 | |
duke@435 | 320 | |
duke@435 | 321 | class ArrayType: public ObjectType { |
duke@435 | 322 | public: |
duke@435 | 323 | virtual ArrayType* as_ArrayType() { return this; } |
duke@435 | 324 | }; |
duke@435 | 325 | |
duke@435 | 326 | |
duke@435 | 327 | class ArrayConstant: public ArrayType { |
duke@435 | 328 | private: |
duke@435 | 329 | ciArray* _value; |
duke@435 | 330 | |
duke@435 | 331 | public: |
duke@435 | 332 | ArrayConstant(ciArray* value) { _value = value; } |
duke@435 | 333 | |
duke@435 | 334 | ciArray* value() const { return _value; } |
duke@435 | 335 | |
duke@435 | 336 | virtual bool is_constant() const { return true; } |
duke@435 | 337 | |
duke@435 | 338 | virtual ArrayConstant* as_ArrayConstant() { return this; } |
duke@435 | 339 | virtual ciObject* constant_value() const; |
duke@435 | 340 | }; |
duke@435 | 341 | |
duke@435 | 342 | |
duke@435 | 343 | class InstanceType: public ObjectType { |
duke@435 | 344 | public: |
duke@435 | 345 | virtual InstanceType* as_InstanceType() { return this; } |
duke@435 | 346 | }; |
duke@435 | 347 | |
duke@435 | 348 | |
duke@435 | 349 | class InstanceConstant: public InstanceType { |
duke@435 | 350 | private: |
duke@435 | 351 | ciInstance* _value; |
duke@435 | 352 | |
duke@435 | 353 | public: |
duke@435 | 354 | InstanceConstant(ciInstance* value) { _value = value; } |
duke@435 | 355 | |
duke@435 | 356 | ciInstance* value() const { return _value; } |
duke@435 | 357 | |
duke@435 | 358 | virtual bool is_constant() const { return true; } |
duke@435 | 359 | |
duke@435 | 360 | virtual InstanceConstant* as_InstanceConstant(){ return this; } |
duke@435 | 361 | virtual ciObject* constant_value() const; |
duke@435 | 362 | }; |
duke@435 | 363 | |
duke@435 | 364 | |
duke@435 | 365 | class ClassType: public ObjectType { |
duke@435 | 366 | public: |
duke@435 | 367 | virtual ClassType* as_ClassType() { return this; } |
duke@435 | 368 | }; |
duke@435 | 369 | |
duke@435 | 370 | |
duke@435 | 371 | class ClassConstant: public ClassType { |
duke@435 | 372 | private: |
duke@435 | 373 | ciInstanceKlass* _value; |
duke@435 | 374 | |
duke@435 | 375 | public: |
duke@435 | 376 | ClassConstant(ciInstanceKlass* value) { _value = value; } |
duke@435 | 377 | |
duke@435 | 378 | ciInstanceKlass* value() const { return _value; } |
duke@435 | 379 | |
duke@435 | 380 | virtual bool is_constant() const { return true; } |
duke@435 | 381 | |
duke@435 | 382 | virtual ClassConstant* as_ClassConstant() { return this; } |
duke@435 | 383 | virtual ciObject* constant_value() const; |
duke@435 | 384 | }; |
duke@435 | 385 | |
duke@435 | 386 | |
duke@435 | 387 | class AddressType: public ValueType { |
duke@435 | 388 | public: |
duke@435 | 389 | AddressType(): ValueType(addressTag, 1) {} |
duke@435 | 390 | virtual ValueType* base() const { return addressType; } |
duke@435 | 391 | virtual const char tchar() const { return 'r'; } |
duke@435 | 392 | virtual const char* name() const { return "address"; } |
duke@435 | 393 | virtual AddressType* as_AddressType() { return this; } |
duke@435 | 394 | }; |
duke@435 | 395 | |
duke@435 | 396 | |
duke@435 | 397 | class AddressConstant: public AddressType { |
duke@435 | 398 | private: |
duke@435 | 399 | jint _value; |
duke@435 | 400 | |
duke@435 | 401 | public: |
duke@435 | 402 | AddressConstant(jint value) { _value = value; } |
duke@435 | 403 | |
duke@435 | 404 | jint value() const { return _value; } |
duke@435 | 405 | |
duke@435 | 406 | virtual bool is_constant() const { return true; } |
duke@435 | 407 | |
duke@435 | 408 | virtual AddressConstant* as_AddressConstant() { return this; } |
duke@435 | 409 | }; |
duke@435 | 410 | |
duke@435 | 411 | |
duke@435 | 412 | class IllegalType: public ValueType { |
duke@435 | 413 | public: |
duke@435 | 414 | IllegalType(): ValueType(illegalTag, -1) {} |
duke@435 | 415 | virtual ValueType* base() const { return illegalType; } |
duke@435 | 416 | virtual const char tchar() const { return ' '; } |
duke@435 | 417 | virtual const char* name() const { return "illegal"; } |
duke@435 | 418 | virtual IllegalType* as_IllegalType() { return this; } |
duke@435 | 419 | }; |
duke@435 | 420 | |
duke@435 | 421 | |
duke@435 | 422 | // conversion between ValueTypes, BasicTypes, and ciConstants |
duke@435 | 423 | ValueType* as_ValueType(BasicType type); |
duke@435 | 424 | ValueType* as_ValueType(ciConstant value); |
duke@435 | 425 | BasicType as_BasicType(ValueType* type); |
duke@435 | 426 | |
duke@435 | 427 | inline ValueType* as_ValueType(ciType* type) { return as_ValueType(type->basic_type()); } |
stefank@2314 | 428 | |
stefank@2314 | 429 | #endif // SHARE_VM_C1_C1_VALUETYPE_HPP |