1 /* 2 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. 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 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_C1_C1_LIR_HPP 26 #define SHARE_VM_C1_C1_LIR_HPP 27 28 #include "c1/c1_ValueType.hpp" 29 30 class BlockBegin; 31 class BlockList; 32 class LIR_Assembler; 33 class CodeEmitInfo; 34 class CodeStub; 35 class CodeStubList; 36 class ArrayCopyStub; 37 class LIR_Op; 38 class ciType; 39 class ValueType; 40 class LIR_OpVisitState; 41 class FpuStackSim; 42 43 //--------------------------------------------------------------------- 44 // LIR Operands 45 // LIR_OprDesc 46 // LIR_OprPtr 47 // LIR_Const 48 // LIR_Address 49 //--------------------------------------------------------------------- 50 class LIR_OprDesc; 51 class LIR_OprPtr; 52 class LIR_Const; 53 class LIR_Address; 54 class LIR_OprVisitor; 55 56 57 typedef LIR_OprDesc* LIR_Opr; 58 typedef int RegNr; 59 60 define_array(LIR_OprArray, LIR_Opr) 61 define_stack(LIR_OprList, LIR_OprArray) 62 63 define_array(LIR_OprRefArray, LIR_Opr*) 64 define_stack(LIR_OprRefList, LIR_OprRefArray) 65 66 define_array(CodeEmitInfoArray, CodeEmitInfo*) 67 define_stack(CodeEmitInfoList, CodeEmitInfoArray) 68 69 define_array(LIR_OpArray, LIR_Op*) 70 define_stack(LIR_OpList, LIR_OpArray) 71 72 // define LIR_OprPtr early so LIR_OprDesc can refer to it 73 class LIR_OprPtr: public CompilationResourceObj { 74 public: 75 bool is_oop_pointer() const { return (type() == T_OBJECT); } 76 bool is_float_kind() const { BasicType t = type(); return (t == T_FLOAT) || (t == T_DOUBLE); } 77 78 virtual LIR_Const* as_constant() { return NULL; } 79 virtual LIR_Address* as_address() { return NULL; } 80 virtual BasicType type() const = 0; 81 virtual void print_value_on(outputStream* out) const = 0; 82 }; 83 84 85 86 // LIR constants 87 class LIR_Const: public LIR_OprPtr { 88 private: 89 JavaValue _value; 90 91 void type_check(BasicType t) const { assert(type() == t, "type check"); } 92 void type_check(BasicType t1, BasicType t2) const { assert(type() == t1 || type() == t2, "type check"); } 93 void type_check(BasicType t1, BasicType t2, BasicType t3) const { assert(type() == t1 || type() == t2 || type() == t3, "type check"); } 94 95 public: 96 LIR_Const(jint i, bool is_address=false) { _value.set_type(is_address?T_ADDRESS:T_INT); _value.set_jint(i); } 97 LIR_Const(jlong l) { _value.set_type(T_LONG); _value.set_jlong(l); } 98 LIR_Const(jfloat f) { _value.set_type(T_FLOAT); _value.set_jfloat(f); } 99 LIR_Const(jdouble d) { _value.set_type(T_DOUBLE); _value.set_jdouble(d); } 100 LIR_Const(jobject o) { _value.set_type(T_OBJECT); _value.set_jobject(o); } 101 LIR_Const(void* p) { 102 #ifdef _LP64 103 assert(sizeof(jlong) >= sizeof(p), "too small");; 104 _value.set_type(T_LONG); _value.set_jlong((jlong)p); 105 #else 106 assert(sizeof(jint) >= sizeof(p), "too small");; 107 _value.set_type(T_INT); _value.set_jint((jint)p); 108 #endif 109 } 110 111 virtual BasicType type() const { return _value.get_type(); } 112 virtual LIR_Const* as_constant() { return this; } 113 114 jint as_jint() const { type_check(T_INT, T_ADDRESS); return _value.get_jint(); } 115 jlong as_jlong() const { type_check(T_LONG ); return _value.get_jlong(); } 116 jfloat as_jfloat() const { type_check(T_FLOAT ); return _value.get_jfloat(); } 117 jdouble as_jdouble() const { type_check(T_DOUBLE); return _value.get_jdouble(); } 118 jobject as_jobject() const { type_check(T_OBJECT); return _value.get_jobject(); } 119 jint as_jint_lo() const { type_check(T_LONG ); return low(_value.get_jlong()); } 120 jint as_jint_hi() const { type_check(T_LONG ); return high(_value.get_jlong()); } 121 122 #ifdef _LP64 123 address as_pointer() const { type_check(T_LONG ); return (address)_value.get_jlong(); } 124 #else 125 address as_pointer() const { type_check(T_INT ); return (address)_value.get_jint(); } 126 #endif 127 128 129 jint as_jint_bits() const { type_check(T_FLOAT, T_INT, T_ADDRESS); return _value.get_jint(); } 130 jint as_jint_lo_bits() const { 131 if (type() == T_DOUBLE) { 132 return low(jlong_cast(_value.get_jdouble())); 133 } else { 134 return as_jint_lo(); 135 } 136 } 137 jint as_jint_hi_bits() const { 138 if (type() == T_DOUBLE) { 139 return high(jlong_cast(_value.get_jdouble())); 140 } else { 141 return as_jint_hi(); 142 } 143 } 144 jlong as_jlong_bits() const { 145 if (type() == T_DOUBLE) { 146 return jlong_cast(_value.get_jdouble()); 147 } else { 148 return as_jlong(); 149 } 150 } 151 152 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN; 153 154 155 bool is_zero_float() { 156 jfloat f = as_jfloat(); 157 jfloat ok = 0.0f; 158 return jint_cast(f) == jint_cast(ok); 159 } 160 161 bool is_one_float() { 162 jfloat f = as_jfloat(); 163 return !g_isnan(f) && g_isfinite(f) && f == 1.0; 164 } 165 166 bool is_zero_double() { 167 jdouble d = as_jdouble(); 168 jdouble ok = 0.0; 169 return jlong_cast(d) == jlong_cast(ok); 170 } 171 172 bool is_one_double() { 173 jdouble d = as_jdouble(); 174 return !g_isnan(d) && g_isfinite(d) && d == 1.0; 175 } 176 }; 177 178 179 //---------------------LIR Operand descriptor------------------------------------ 180 // 181 // The class LIR_OprDesc represents a LIR instruction operand; 182 // it can be a register (ALU/FPU), stack location or a constant; 183 // Constants and addresses are represented as resource area allocated 184 // structures (see above). 185 // Registers and stack locations are inlined into the this pointer 186 // (see value function). 187 188 class LIR_OprDesc: public CompilationResourceObj { 189 public: 190 // value structure: 191 // data opr-type opr-kind 192 // +--------------+-------+-------+ 193 // [max...........|7 6 5 4|3 2 1 0] 194 // ^ 195 // is_pointer bit 196 // 197 // lowest bit cleared, means it is a structure pointer 198 // we need 4 bits to represent types 199 200 private: 201 friend class LIR_OprFact; 202 203 // Conversion 204 intptr_t value() const { return (intptr_t) this; } 205 206 bool check_value_mask(intptr_t mask, intptr_t masked_value) const { 207 return (value() & mask) == masked_value; 208 } 209 210 enum OprKind { 211 pointer_value = 0 212 , stack_value = 1 213 , cpu_register = 3 214 , fpu_register = 5 215 , illegal_value = 7 216 }; 217 218 enum OprBits { 219 pointer_bits = 1 220 , kind_bits = 3 221 , type_bits = 4 222 , size_bits = 2 223 , destroys_bits = 1 224 , virtual_bits = 1 225 , is_xmm_bits = 1 226 , last_use_bits = 1 227 , is_fpu_stack_offset_bits = 1 // used in assertion checking on x86 for FPU stack slot allocation 228 , non_data_bits = kind_bits + type_bits + size_bits + destroys_bits + last_use_bits + 229 is_fpu_stack_offset_bits + virtual_bits + is_xmm_bits 230 , data_bits = BitsPerInt - non_data_bits 231 , reg_bits = data_bits / 2 // for two registers in one value encoding 232 }; 233 234 enum OprShift { 235 kind_shift = 0 236 , type_shift = kind_shift + kind_bits 237 , size_shift = type_shift + type_bits 238 , destroys_shift = size_shift + size_bits 239 , last_use_shift = destroys_shift + destroys_bits 240 , is_fpu_stack_offset_shift = last_use_shift + last_use_bits 241 , virtual_shift = is_fpu_stack_offset_shift + is_fpu_stack_offset_bits 242 , is_xmm_shift = virtual_shift + virtual_bits 243 , data_shift = is_xmm_shift + is_xmm_bits 244 , reg1_shift = data_shift 245 , reg2_shift = data_shift + reg_bits 246 247 }; 248 249 enum OprSize { 250 single_size = 0 << size_shift 251 , double_size = 1 << size_shift 252 }; 253 254 enum OprMask { 255 kind_mask = right_n_bits(kind_bits) 256 , type_mask = right_n_bits(type_bits) << type_shift 257 , size_mask = right_n_bits(size_bits) << size_shift 258 , last_use_mask = right_n_bits(last_use_bits) << last_use_shift 259 , is_fpu_stack_offset_mask = right_n_bits(is_fpu_stack_offset_bits) << is_fpu_stack_offset_shift 260 , virtual_mask = right_n_bits(virtual_bits) << virtual_shift 261 , is_xmm_mask = right_n_bits(is_xmm_bits) << is_xmm_shift 262 , pointer_mask = right_n_bits(pointer_bits) 263 , lower_reg_mask = right_n_bits(reg_bits) 264 , no_type_mask = (int)(~(type_mask | last_use_mask | is_fpu_stack_offset_mask)) 265 }; 266 267 uintptr_t data() const { return value() >> data_shift; } 268 int lo_reg_half() const { return data() & lower_reg_mask; } 269 int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; } 270 OprKind kind_field() const { return (OprKind)(value() & kind_mask); } 271 OprSize size_field() const { return (OprSize)(value() & size_mask); } 272 273 static char type_char(BasicType t); 274 275 public: 276 enum { 277 vreg_base = ConcreteRegisterImpl::number_of_registers, 278 vreg_max = (1 << data_bits) - 1 279 }; 280 281 static inline LIR_Opr illegalOpr(); 282 283 enum OprType { 284 unknown_type = 0 << type_shift // means: not set (catch uninitialized types) 285 , int_type = 1 << type_shift 286 , long_type = 2 << type_shift 287 , object_type = 3 << type_shift 288 , address_type = 4 << type_shift 289 , float_type = 5 << type_shift 290 , double_type = 6 << type_shift 291 }; 292 friend OprType as_OprType(BasicType t); 293 friend BasicType as_BasicType(OprType t); 294 295 OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); } 296 OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); } 297 298 static OprSize size_for(BasicType t) { 299 switch (t) { 300 case T_LONG: 301 case T_DOUBLE: 302 return double_size; 303 break; 304 305 case T_FLOAT: 306 case T_BOOLEAN: 307 case T_CHAR: 308 case T_BYTE: 309 case T_SHORT: 310 case T_INT: 311 case T_ADDRESS: 312 case T_OBJECT: 313 case T_ARRAY: 314 return single_size; 315 break; 316 317 default: 318 ShouldNotReachHere(); 319 return single_size; 320 } 321 } 322 323 324 void validate_type() const PRODUCT_RETURN; 325 326 BasicType type() const { 327 if (is_pointer()) { 328 return pointer()->type(); 329 } 330 return as_BasicType(type_field()); 331 } 332 333 334 ValueType* value_type() const { return as_ValueType(type()); } 335 336 char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); } 337 338 bool is_equal(LIR_Opr opr) const { return this == opr; } 339 // checks whether types are same 340 bool is_same_type(LIR_Opr opr) const { 341 assert(type_field() != unknown_type && 342 opr->type_field() != unknown_type, "shouldn't see unknown_type"); 343 return type_field() == opr->type_field(); 344 } 345 bool is_same_register(LIR_Opr opr) { 346 return (is_register() && opr->is_register() && 347 kind_field() == opr->kind_field() && 348 (value() & no_type_mask) == (opr->value() & no_type_mask)); 349 } 350 351 bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); } 352 bool is_illegal() const { return kind_field() == illegal_value; } 353 bool is_valid() const { return kind_field() != illegal_value; } 354 355 bool is_register() const { return is_cpu_register() || is_fpu_register(); } 356 bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); } 357 358 bool is_constant() const { return is_pointer() && pointer()->as_constant() != NULL; } 359 bool is_address() const { return is_pointer() && pointer()->as_address() != NULL; } 360 361 bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); } 362 bool is_oop() const; 363 364 // semantic for fpu- and xmm-registers: 365 // * is_float and is_double return true for xmm_registers 366 // (so is_single_fpu and is_single_xmm are true) 367 // * So you must always check for is_???_xmm prior to is_???_fpu to 368 // distinguish between fpu- and xmm-registers 369 370 bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); } 371 bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); } 372 bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); } 373 374 bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); } 375 bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); } 376 bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); } 377 bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); } 378 bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); } 379 380 bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); } 381 bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); } 382 bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); } 383 bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); } 384 bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); } 385 386 bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); } 387 bool is_single_xmm() const { validate_type(); return check_value_mask(kind_mask | size_mask | is_xmm_mask, fpu_register | single_size | is_xmm_mask); } 388 bool is_double_xmm() const { validate_type(); return check_value_mask(kind_mask | size_mask | is_xmm_mask, fpu_register | double_size | is_xmm_mask); } 389 390 // fast accessor functions for special bits that do not work for pointers 391 // (in this functions, the check for is_pointer() is omitted) 392 bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); } 393 bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); } 394 bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); } 395 bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; } 396 BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); } 397 398 bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; } 399 bool is_fpu_stack_offset() const { assert(is_register(), "only works for registers"); return (value() & is_fpu_stack_offset_mask) != 0; } 400 LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); } 401 LIR_Opr make_fpu_stack_offset() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | is_fpu_stack_offset_mask); } 402 403 404 int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); } 405 int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); } 406 RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); } 407 RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); } 408 RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); } 409 RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); } 410 RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); } 411 RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); } 412 RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); } 413 RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); } 414 RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); } 415 int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); } 416 417 LIR_OprPtr* pointer() const { assert(is_pointer(), "type check"); return (LIR_OprPtr*)this; } 418 LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); } 419 LIR_Address* as_address_ptr() const { return pointer()->as_address(); } 420 421 Register as_register() const; 422 Register as_register_lo() const; 423 Register as_register_hi() const; 424 425 Register as_pointer_register() { 426 #ifdef _LP64 427 if (is_double_cpu()) { 428 assert(as_register_lo() == as_register_hi(), "should be a single register"); 429 return as_register_lo(); 430 } 431 #endif 432 return as_register(); 433 } 434 435 #ifdef X86 436 XMMRegister as_xmm_float_reg() const; 437 XMMRegister as_xmm_double_reg() const; 438 // for compatibility with RInfo 439 int fpu () const { return lo_reg_half(); } 440 #endif // X86 441 #if defined(SPARC) || defined(ARM) || defined(PPC) 442 FloatRegister as_float_reg () const; 443 FloatRegister as_double_reg () const; 444 #endif 445 446 jint as_jint() const { return as_constant_ptr()->as_jint(); } 447 jlong as_jlong() const { return as_constant_ptr()->as_jlong(); } 448 jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); } 449 jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); } 450 jobject as_jobject() const { return as_constant_ptr()->as_jobject(); } 451 452 void print() const PRODUCT_RETURN; 453 void print(outputStream* out) const PRODUCT_RETURN; 454 }; 455 456 457 inline LIR_OprDesc::OprType as_OprType(BasicType type) { 458 switch (type) { 459 case T_INT: return LIR_OprDesc::int_type; 460 case T_LONG: return LIR_OprDesc::long_type; 461 case T_FLOAT: return LIR_OprDesc::float_type; 462 case T_DOUBLE: return LIR_OprDesc::double_type; 463 case T_OBJECT: 464 case T_ARRAY: return LIR_OprDesc::object_type; 465 case T_ADDRESS: return LIR_OprDesc::address_type; 466 case T_ILLEGAL: // fall through 467 default: ShouldNotReachHere(); return LIR_OprDesc::unknown_type; 468 } 469 } 470 471 inline BasicType as_BasicType(LIR_OprDesc::OprType t) { 472 switch (t) { 473 case LIR_OprDesc::int_type: return T_INT; 474 case LIR_OprDesc::long_type: return T_LONG; 475 case LIR_OprDesc::float_type: return T_FLOAT; 476 case LIR_OprDesc::double_type: return T_DOUBLE; 477 case LIR_OprDesc::object_type: return T_OBJECT; 478 case LIR_OprDesc::address_type: return T_ADDRESS; 479 case LIR_OprDesc::unknown_type: // fall through 480 default: ShouldNotReachHere(); return T_ILLEGAL; 481 } 482 } 483 484 485 // LIR_Address 486 class LIR_Address: public LIR_OprPtr { 487 friend class LIR_OpVisitState; 488 489 public: 490 // NOTE: currently these must be the log2 of the scale factor (and 491 // must also be equivalent to the ScaleFactor enum in 492 // assembler_i486.hpp) 493 enum Scale { 494 times_1 = 0, 495 times_2 = 1, 496 times_4 = 2, 497 times_8 = 3 498 }; 499 500 private: 501 LIR_Opr _base; 502 LIR_Opr _index; 503 Scale _scale; 504 intx _disp; 505 BasicType _type; 506 507 public: 508 LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type): 509 _base(base) 510 , _index(index) 511 , _scale(times_1) 512 , _type(type) 513 , _disp(0) { verify(); } 514 515 LIR_Address(LIR_Opr base, intx disp, BasicType type): 516 _base(base) 517 , _index(LIR_OprDesc::illegalOpr()) 518 , _scale(times_1) 519 , _type(type) 520 , _disp(disp) { verify(); } 521 522 LIR_Address(LIR_Opr base, BasicType type): 523 _base(base) 524 , _index(LIR_OprDesc::illegalOpr()) 525 , _scale(times_1) 526 , _type(type) 527 , _disp(0) { verify(); } 528 529 #if defined(X86) || defined(ARM) 530 LIR_Address(LIR_Opr base, LIR_Opr index, Scale scale, intx disp, BasicType type): 531 _base(base) 532 , _index(index) 533 , _scale(scale) 534 , _type(type) 535 , _disp(disp) { verify(); } 536 #endif // X86 || ARM 537 538 LIR_Opr base() const { return _base; } 539 LIR_Opr index() const { return _index; } 540 Scale scale() const { return _scale; } 541 intx disp() const { return _disp; } 542 543 bool equals(LIR_Address* other) const { return base() == other->base() && index() == other->index() && disp() == other->disp() && scale() == other->scale(); } 544 545 virtual LIR_Address* as_address() { return this; } 546 virtual BasicType type() const { return _type; } 547 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN; 548 549 void verify() const PRODUCT_RETURN; 550 551 static Scale scale(BasicType type); 552 }; 553 554 555 // operand factory 556 class LIR_OprFact: public AllStatic { 557 public: 558 559 static LIR_Opr illegalOpr; 560 561 static LIR_Opr single_cpu(int reg) { 562 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 563 LIR_OprDesc::int_type | 564 LIR_OprDesc::cpu_register | 565 LIR_OprDesc::single_size); 566 } 567 static LIR_Opr single_cpu_oop(int reg) { 568 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 569 LIR_OprDesc::object_type | 570 LIR_OprDesc::cpu_register | 571 LIR_OprDesc::single_size); 572 } 573 static LIR_Opr single_cpu_address(int reg) { 574 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 575 LIR_OprDesc::address_type | 576 LIR_OprDesc::cpu_register | 577 LIR_OprDesc::single_size); 578 } 579 static LIR_Opr double_cpu(int reg1, int reg2) { 580 LP64_ONLY(assert(reg1 == reg2, "must be identical")); 581 return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) | 582 (reg2 << LIR_OprDesc::reg2_shift) | 583 LIR_OprDesc::long_type | 584 LIR_OprDesc::cpu_register | 585 LIR_OprDesc::double_size); 586 } 587 588 static LIR_Opr single_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 589 LIR_OprDesc::float_type | 590 LIR_OprDesc::fpu_register | 591 LIR_OprDesc::single_size); } 592 #if defined(ARM) 593 static LIR_Opr double_fpu(int reg1, int reg2) { return (LIR_Opr)((reg1 << LIR_OprDesc::reg1_shift) | (reg2 << LIR_OprDesc::reg2_shift) | LIR_OprDesc::double_type | LIR_OprDesc::fpu_register | LIR_OprDesc::double_size); } 594 static LIR_Opr single_softfp(int reg) { return (LIR_Opr)((reg << LIR_OprDesc::reg1_shift) | LIR_OprDesc::float_type | LIR_OprDesc::cpu_register | LIR_OprDesc::single_size); } 595 static LIR_Opr double_softfp(int reg1, int reg2) { return (LIR_Opr)((reg1 << LIR_OprDesc::reg1_shift) | (reg2 << LIR_OprDesc::reg2_shift) | LIR_OprDesc::double_type | LIR_OprDesc::cpu_register | LIR_OprDesc::double_size); } 596 #endif 597 #ifdef SPARC 598 static LIR_Opr double_fpu(int reg1, int reg2) { return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) | 599 (reg2 << LIR_OprDesc::reg2_shift) | 600 LIR_OprDesc::double_type | 601 LIR_OprDesc::fpu_register | 602 LIR_OprDesc::double_size); } 603 #endif 604 #ifdef X86 605 static LIR_Opr double_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 606 (reg << LIR_OprDesc::reg2_shift) | 607 LIR_OprDesc::double_type | 608 LIR_OprDesc::fpu_register | 609 LIR_OprDesc::double_size); } 610 611 static LIR_Opr single_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 612 LIR_OprDesc::float_type | 613 LIR_OprDesc::fpu_register | 614 LIR_OprDesc::single_size | 615 LIR_OprDesc::is_xmm_mask); } 616 static LIR_Opr double_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 617 (reg << LIR_OprDesc::reg2_shift) | 618 LIR_OprDesc::double_type | 619 LIR_OprDesc::fpu_register | 620 LIR_OprDesc::double_size | 621 LIR_OprDesc::is_xmm_mask); } 622 #endif // X86 623 #ifdef PPC 624 static LIR_Opr double_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 625 (reg << LIR_OprDesc::reg2_shift) | 626 LIR_OprDesc::double_type | 627 LIR_OprDesc::fpu_register | 628 LIR_OprDesc::double_size); } 629 static LIR_Opr single_softfp(int reg) { return (LIR_Opr)((reg << LIR_OprDesc::reg1_shift) | 630 LIR_OprDesc::float_type | 631 LIR_OprDesc::cpu_register | 632 LIR_OprDesc::single_size); } 633 static LIR_Opr double_softfp(int reg1, int reg2) { return (LIR_Opr)((reg2 << LIR_OprDesc::reg1_shift) | 634 (reg1 << LIR_OprDesc::reg2_shift) | 635 LIR_OprDesc::double_type | 636 LIR_OprDesc::cpu_register | 637 LIR_OprDesc::double_size); } 638 #endif // PPC 639 640 static LIR_Opr virtual_register(int index, BasicType type) { 641 LIR_Opr res; 642 switch (type) { 643 case T_OBJECT: // fall through 644 case T_ARRAY: 645 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 646 LIR_OprDesc::object_type | 647 LIR_OprDesc::cpu_register | 648 LIR_OprDesc::single_size | 649 LIR_OprDesc::virtual_mask); 650 break; 651 652 case T_INT: 653 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 654 LIR_OprDesc::int_type | 655 LIR_OprDesc::cpu_register | 656 LIR_OprDesc::single_size | 657 LIR_OprDesc::virtual_mask); 658 break; 659 660 case T_ADDRESS: 661 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 662 LIR_OprDesc::address_type | 663 LIR_OprDesc::cpu_register | 664 LIR_OprDesc::single_size | 665 LIR_OprDesc::virtual_mask); 666 break; 667 668 case T_LONG: 669 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 670 LIR_OprDesc::long_type | 671 LIR_OprDesc::cpu_register | 672 LIR_OprDesc::double_size | 673 LIR_OprDesc::virtual_mask); 674 break; 675 676 #ifdef __SOFTFP__ 677 case T_FLOAT: 678 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 679 LIR_OprDesc::float_type | 680 LIR_OprDesc::cpu_register | 681 LIR_OprDesc::single_size | 682 LIR_OprDesc::virtual_mask); 683 break; 684 case T_DOUBLE: 685 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 686 LIR_OprDesc::double_type | 687 LIR_OprDesc::cpu_register | 688 LIR_OprDesc::double_size | 689 LIR_OprDesc::virtual_mask); 690 break; 691 #else // __SOFTFP__ 692 case T_FLOAT: 693 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 694 LIR_OprDesc::float_type | 695 LIR_OprDesc::fpu_register | 696 LIR_OprDesc::single_size | 697 LIR_OprDesc::virtual_mask); 698 break; 699 700 case 701 T_DOUBLE: res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 702 LIR_OprDesc::double_type | 703 LIR_OprDesc::fpu_register | 704 LIR_OprDesc::double_size | 705 LIR_OprDesc::virtual_mask); 706 break; 707 #endif // __SOFTFP__ 708 default: ShouldNotReachHere(); res = illegalOpr; 709 } 710 711 #ifdef ASSERT 712 res->validate_type(); 713 assert(res->vreg_number() == index, "conversion check"); 714 assert(index >= LIR_OprDesc::vreg_base, "must start at vreg_base"); 715 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big"); 716 717 // old-style calculation; check if old and new method are equal 718 LIR_OprDesc::OprType t = as_OprType(type); 719 #ifdef __SOFTFP__ 720 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 721 t | 722 LIR_OprDesc::cpu_register | 723 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask); 724 #else // __SOFTFP__ 725 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | t | 726 ((type == T_FLOAT || type == T_DOUBLE) ? LIR_OprDesc::fpu_register : LIR_OprDesc::cpu_register) | 727 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask); 728 assert(res == old_res, "old and new method not equal"); 729 #endif // __SOFTFP__ 730 #endif // ASSERT 731 732 return res; 733 } 734 735 // 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as 736 // the index is platform independent; a double stack useing indeces 2 and 3 has always 737 // index 2. 738 static LIR_Opr stack(int index, BasicType type) { 739 LIR_Opr res; 740 switch (type) { 741 case T_OBJECT: // fall through 742 case T_ARRAY: 743 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 744 LIR_OprDesc::object_type | 745 LIR_OprDesc::stack_value | 746 LIR_OprDesc::single_size); 747 break; 748 749 case T_INT: 750 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 751 LIR_OprDesc::int_type | 752 LIR_OprDesc::stack_value | 753 LIR_OprDesc::single_size); 754 break; 755 756 case T_ADDRESS: 757 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 758 LIR_OprDesc::address_type | 759 LIR_OprDesc::stack_value | 760 LIR_OprDesc::single_size); 761 break; 762 763 case T_LONG: 764 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 765 LIR_OprDesc::long_type | 766 LIR_OprDesc::stack_value | 767 LIR_OprDesc::double_size); 768 break; 769 770 case T_FLOAT: 771 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 772 LIR_OprDesc::float_type | 773 LIR_OprDesc::stack_value | 774 LIR_OprDesc::single_size); 775 break; 776 case T_DOUBLE: 777 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 778 LIR_OprDesc::double_type | 779 LIR_OprDesc::stack_value | 780 LIR_OprDesc::double_size); 781 break; 782 783 default: ShouldNotReachHere(); res = illegalOpr; 784 } 785 786 #ifdef ASSERT 787 assert(index >= 0, "index must be positive"); 788 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big"); 789 790 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 791 LIR_OprDesc::stack_value | 792 as_OprType(type) | 793 LIR_OprDesc::size_for(type)); 794 assert(res == old_res, "old and new method not equal"); 795 #endif 796 797 return res; 798 } 799 800 static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); } 801 static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); } 802 static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); } 803 static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); } 804 static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); } 805 static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; } 806 static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); } 807 static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); } 808 static LIR_Opr illegal() { return (LIR_Opr)-1; } 809 static LIR_Opr addressConst(jint i) { return (LIR_Opr)(new LIR_Const(i, true)); } 810 811 static LIR_Opr value_type(ValueType* type); 812 static LIR_Opr dummy_value_type(ValueType* type); 813 }; 814 815 816 //------------------------------------------------------------------------------- 817 // LIR Instructions 818 //------------------------------------------------------------------------------- 819 // 820 // Note: 821 // - every instruction has a result operand 822 // - every instruction has an CodeEmitInfo operand (can be revisited later) 823 // - every instruction has a LIR_OpCode operand 824 // - LIR_OpN, means an instruction that has N input operands 825 // 826 // class hierarchy: 827 // 828 class LIR_Op; 829 class LIR_Op0; 830 class LIR_OpLabel; 831 class LIR_Op1; 832 class LIR_OpBranch; 833 class LIR_OpConvert; 834 class LIR_OpAllocObj; 835 class LIR_OpRoundFP; 836 class LIR_Op2; 837 class LIR_OpDelay; 838 class LIR_Op3; 839 class LIR_OpAllocArray; 840 class LIR_OpCall; 841 class LIR_OpJavaCall; 842 class LIR_OpRTCall; 843 class LIR_OpArrayCopy; 844 class LIR_OpLock; 845 class LIR_OpTypeCheck; 846 class LIR_OpCompareAndSwap; 847 class LIR_OpProfileCall; 848 849 850 // LIR operation codes 851 enum LIR_Code { 852 lir_none 853 , begin_op0 854 , lir_word_align 855 , lir_label 856 , lir_nop 857 , lir_backwardbranch_target 858 , lir_std_entry 859 , lir_osr_entry 860 , lir_build_frame 861 , lir_fpop_raw 862 , lir_24bit_FPU 863 , lir_reset_FPU 864 , lir_breakpoint 865 , lir_rtcall 866 , lir_membar 867 , lir_membar_acquire 868 , lir_membar_release 869 , lir_get_thread 870 , end_op0 871 , begin_op1 872 , lir_fxch 873 , lir_fld 874 , lir_ffree 875 , lir_push 876 , lir_pop 877 , lir_null_check 878 , lir_return 879 , lir_leal 880 , lir_neg 881 , lir_branch 882 , lir_cond_float_branch 883 , lir_move 884 , lir_prefetchr 885 , lir_prefetchw 886 , lir_convert 887 , lir_alloc_object 888 , lir_monaddr 889 , lir_roundfp 890 , lir_safepoint 891 , lir_pack64 892 , lir_unpack64 893 , lir_unwind 894 , end_op1 895 , begin_op2 896 , lir_cmp 897 , lir_cmp_l2i 898 , lir_ucmp_fd2i 899 , lir_cmp_fd2i 900 , lir_cmove 901 , lir_add 902 , lir_sub 903 , lir_mul 904 , lir_mul_strictfp 905 , lir_div 906 , lir_div_strictfp 907 , lir_rem 908 , lir_sqrt 909 , lir_abs 910 , lir_sin 911 , lir_cos 912 , lir_tan 913 , lir_log 914 , lir_log10 915 , lir_logic_and 916 , lir_logic_or 917 , lir_logic_xor 918 , lir_shl 919 , lir_shr 920 , lir_ushr 921 , lir_alloc_array 922 , lir_throw 923 , lir_compare_to 924 , end_op2 925 , begin_op3 926 , lir_idiv 927 , lir_irem 928 , end_op3 929 , begin_opJavaCall 930 , lir_static_call 931 , lir_optvirtual_call 932 , lir_icvirtual_call 933 , lir_virtual_call 934 , lir_dynamic_call 935 , end_opJavaCall 936 , begin_opArrayCopy 937 , lir_arraycopy 938 , end_opArrayCopy 939 , begin_opLock 940 , lir_lock 941 , lir_unlock 942 , end_opLock 943 , begin_delay_slot 944 , lir_delay_slot 945 , end_delay_slot 946 , begin_opTypeCheck 947 , lir_instanceof 948 , lir_checkcast 949 , lir_store_check 950 , end_opTypeCheck 951 , begin_opCompareAndSwap 952 , lir_cas_long 953 , lir_cas_obj 954 , lir_cas_int 955 , end_opCompareAndSwap 956 , begin_opMDOProfile 957 , lir_profile_call 958 , end_opMDOProfile 959 }; 960 961 962 enum LIR_Condition { 963 lir_cond_equal 964 , lir_cond_notEqual 965 , lir_cond_less 966 , lir_cond_lessEqual 967 , lir_cond_greaterEqual 968 , lir_cond_greater 969 , lir_cond_belowEqual 970 , lir_cond_aboveEqual 971 , lir_cond_always 972 , lir_cond_unknown = -1 973 }; 974 975 976 enum LIR_PatchCode { 977 lir_patch_none, 978 lir_patch_low, 979 lir_patch_high, 980 lir_patch_normal 981 }; 982 983 984 enum LIR_MoveKind { 985 lir_move_normal, 986 lir_move_volatile, 987 lir_move_unaligned, 988 lir_move_max_flag 989 }; 990 991 992 // -------------------------------------------------- 993 // LIR_Op 994 // -------------------------------------------------- 995 class LIR_Op: public CompilationResourceObj { 996 friend class LIR_OpVisitState; 997 998 #ifdef ASSERT 999 private: 1000 const char * _file; 1001 int _line; 1002 #endif 1003 1004 protected: 1005 LIR_Opr _result; 1006 unsigned short _code; 1007 unsigned short _flags; 1008 CodeEmitInfo* _info; 1009 int _id; // value id for register allocation 1010 int _fpu_pop_count; 1011 Instruction* _source; // for debugging 1012 1013 static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN; 1014 1015 protected: 1016 static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; } 1017 1018 public: 1019 LIR_Op() 1020 : _result(LIR_OprFact::illegalOpr) 1021 , _code(lir_none) 1022 , _flags(0) 1023 , _info(NULL) 1024 #ifdef ASSERT 1025 , _file(NULL) 1026 , _line(0) 1027 #endif 1028 , _fpu_pop_count(0) 1029 , _source(NULL) 1030 , _id(-1) {} 1031 1032 LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info) 1033 : _result(result) 1034 , _code(code) 1035 , _flags(0) 1036 , _info(info) 1037 #ifdef ASSERT 1038 , _file(NULL) 1039 , _line(0) 1040 #endif 1041 , _fpu_pop_count(0) 1042 , _source(NULL) 1043 , _id(-1) {} 1044 1045 CodeEmitInfo* info() const { return _info; } 1046 LIR_Code code() const { return (LIR_Code)_code; } 1047 LIR_Opr result_opr() const { return _result; } 1048 void set_result_opr(LIR_Opr opr) { _result = opr; } 1049 1050 #ifdef ASSERT 1051 void set_file_and_line(const char * file, int line) { 1052 _file = file; 1053 _line = line; 1054 } 1055 #endif 1056 1057 virtual const char * name() const PRODUCT_RETURN0; 1058 1059 int id() const { return _id; } 1060 void set_id(int id) { _id = id; } 1061 1062 // FPU stack simulation helpers -- only used on Intel 1063 void set_fpu_pop_count(int count) { assert(count >= 0 && count <= 1, "currently only 0 and 1 are valid"); _fpu_pop_count = count; } 1064 int fpu_pop_count() const { return _fpu_pop_count; } 1065 bool pop_fpu_stack() { return _fpu_pop_count > 0; } 1066 1067 Instruction* source() const { return _source; } 1068 void set_source(Instruction* ins) { _source = ins; } 1069 1070 virtual void emit_code(LIR_Assembler* masm) = 0; 1071 virtual void print_instr(outputStream* out) const = 0; 1072 virtual void print_on(outputStream* st) const PRODUCT_RETURN; 1073 1074 virtual LIR_OpCall* as_OpCall() { return NULL; } 1075 virtual LIR_OpJavaCall* as_OpJavaCall() { return NULL; } 1076 virtual LIR_OpLabel* as_OpLabel() { return NULL; } 1077 virtual LIR_OpDelay* as_OpDelay() { return NULL; } 1078 virtual LIR_OpLock* as_OpLock() { return NULL; } 1079 virtual LIR_OpAllocArray* as_OpAllocArray() { return NULL; } 1080 virtual LIR_OpAllocObj* as_OpAllocObj() { return NULL; } 1081 virtual LIR_OpRoundFP* as_OpRoundFP() { return NULL; } 1082 virtual LIR_OpBranch* as_OpBranch() { return NULL; } 1083 virtual LIR_OpRTCall* as_OpRTCall() { return NULL; } 1084 virtual LIR_OpConvert* as_OpConvert() { return NULL; } 1085 virtual LIR_Op0* as_Op0() { return NULL; } 1086 virtual LIR_Op1* as_Op1() { return NULL; } 1087 virtual LIR_Op2* as_Op2() { return NULL; } 1088 virtual LIR_Op3* as_Op3() { return NULL; } 1089 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return NULL; } 1090 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return NULL; } 1091 virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return NULL; } 1092 virtual LIR_OpProfileCall* as_OpProfileCall() { return NULL; } 1093 1094 virtual void verify() const {} 1095 }; 1096 1097 // for calls 1098 class LIR_OpCall: public LIR_Op { 1099 friend class LIR_OpVisitState; 1100 1101 protected: 1102 address _addr; 1103 LIR_OprList* _arguments; 1104 protected: 1105 LIR_OpCall(LIR_Code code, address addr, LIR_Opr result, 1106 LIR_OprList* arguments, CodeEmitInfo* info = NULL) 1107 : LIR_Op(code, result, info) 1108 , _arguments(arguments) 1109 , _addr(addr) {} 1110 1111 public: 1112 address addr() const { return _addr; } 1113 const LIR_OprList* arguments() const { return _arguments; } 1114 virtual LIR_OpCall* as_OpCall() { return this; } 1115 }; 1116 1117 1118 // -------------------------------------------------- 1119 // LIR_OpJavaCall 1120 // -------------------------------------------------- 1121 class LIR_OpJavaCall: public LIR_OpCall { 1122 friend class LIR_OpVisitState; 1123 1124 private: 1125 ciMethod* _method; 1126 LIR_Opr _receiver; 1127 LIR_Opr _method_handle_invoke_SP_save_opr; // Used in LIR_OpVisitState::visit to store the reference to FrameMap::method_handle_invoke_SP_save_opr. 1128 1129 public: 1130 LIR_OpJavaCall(LIR_Code code, ciMethod* method, 1131 LIR_Opr receiver, LIR_Opr result, 1132 address addr, LIR_OprList* arguments, 1133 CodeEmitInfo* info) 1134 : LIR_OpCall(code, addr, result, arguments, info) 1135 , _receiver(receiver) 1136 , _method(method) 1137 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr) 1138 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); } 1139 1140 LIR_OpJavaCall(LIR_Code code, ciMethod* method, 1141 LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset, 1142 LIR_OprList* arguments, CodeEmitInfo* info) 1143 : LIR_OpCall(code, (address)vtable_offset, result, arguments, info) 1144 , _receiver(receiver) 1145 , _method(method) 1146 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr) 1147 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); } 1148 1149 LIR_Opr receiver() const { return _receiver; } 1150 ciMethod* method() const { return _method; } 1151 1152 // JSR 292 support. 1153 bool is_invokedynamic() const { return code() == lir_dynamic_call; } 1154 bool is_method_handle_invoke() const { 1155 return 1156 is_invokedynamic() // An invokedynamic is always a MethodHandle call site. 1157 || 1158 (method()->holder()->name() == ciSymbol::java_dyn_MethodHandle() && 1159 methodOopDesc::is_method_handle_invoke_name(method()->name()->sid())); 1160 } 1161 1162 intptr_t vtable_offset() const { 1163 assert(_code == lir_virtual_call, "only have vtable for real vcall"); 1164 return (intptr_t) addr(); 1165 } 1166 1167 virtual void emit_code(LIR_Assembler* masm); 1168 virtual LIR_OpJavaCall* as_OpJavaCall() { return this; } 1169 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1170 }; 1171 1172 // -------------------------------------------------- 1173 // LIR_OpLabel 1174 // -------------------------------------------------- 1175 // Location where a branch can continue 1176 class LIR_OpLabel: public LIR_Op { 1177 friend class LIR_OpVisitState; 1178 1179 private: 1180 Label* _label; 1181 public: 1182 LIR_OpLabel(Label* lbl) 1183 : LIR_Op(lir_label, LIR_OprFact::illegalOpr, NULL) 1184 , _label(lbl) {} 1185 Label* label() const { return _label; } 1186 1187 virtual void emit_code(LIR_Assembler* masm); 1188 virtual LIR_OpLabel* as_OpLabel() { return this; } 1189 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1190 }; 1191 1192 // LIR_OpArrayCopy 1193 class LIR_OpArrayCopy: public LIR_Op { 1194 friend class LIR_OpVisitState; 1195 1196 private: 1197 ArrayCopyStub* _stub; 1198 LIR_Opr _src; 1199 LIR_Opr _src_pos; 1200 LIR_Opr _dst; 1201 LIR_Opr _dst_pos; 1202 LIR_Opr _length; 1203 LIR_Opr _tmp; 1204 ciArrayKlass* _expected_type; 1205 int _flags; 1206 1207 public: 1208 enum Flags { 1209 src_null_check = 1 << 0, 1210 dst_null_check = 1 << 1, 1211 src_pos_positive_check = 1 << 2, 1212 dst_pos_positive_check = 1 << 3, 1213 length_positive_check = 1 << 4, 1214 src_range_check = 1 << 5, 1215 dst_range_check = 1 << 6, 1216 type_check = 1 << 7, 1217 all_flags = (1 << 8) - 1 1218 }; 1219 1220 LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp, 1221 ciArrayKlass* expected_type, int flags, CodeEmitInfo* info); 1222 1223 LIR_Opr src() const { return _src; } 1224 LIR_Opr src_pos() const { return _src_pos; } 1225 LIR_Opr dst() const { return _dst; } 1226 LIR_Opr dst_pos() const { return _dst_pos; } 1227 LIR_Opr length() const { return _length; } 1228 LIR_Opr tmp() const { return _tmp; } 1229 int flags() const { return _flags; } 1230 ciArrayKlass* expected_type() const { return _expected_type; } 1231 ArrayCopyStub* stub() const { return _stub; } 1232 1233 virtual void emit_code(LIR_Assembler* masm); 1234 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; } 1235 void print_instr(outputStream* out) const PRODUCT_RETURN; 1236 }; 1237 1238 1239 // -------------------------------------------------- 1240 // LIR_Op0 1241 // -------------------------------------------------- 1242 class LIR_Op0: public LIR_Op { 1243 friend class LIR_OpVisitState; 1244 1245 public: 1246 LIR_Op0(LIR_Code code) 1247 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) { assert(is_in_range(code, begin_op0, end_op0), "code check"); } 1248 LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = NULL) 1249 : LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); } 1250 1251 virtual void emit_code(LIR_Assembler* masm); 1252 virtual LIR_Op0* as_Op0() { return this; } 1253 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1254 }; 1255 1256 1257 // -------------------------------------------------- 1258 // LIR_Op1 1259 // -------------------------------------------------- 1260 1261 class LIR_Op1: public LIR_Op { 1262 friend class LIR_OpVisitState; 1263 1264 protected: 1265 LIR_Opr _opr; // input operand 1266 BasicType _type; // Operand types 1267 LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?) 1268 1269 static void print_patch_code(outputStream* out, LIR_PatchCode code); 1270 1271 void set_kind(LIR_MoveKind kind) { 1272 assert(code() == lir_move, "must be"); 1273 _flags = kind; 1274 } 1275 1276 public: 1277 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result = LIR_OprFact::illegalOpr, BasicType type = T_ILLEGAL, LIR_PatchCode patch = lir_patch_none, CodeEmitInfo* info = NULL) 1278 : LIR_Op(code, result, info) 1279 , _opr(opr) 1280 , _patch(patch) 1281 , _type(type) { assert(is_in_range(code, begin_op1, end_op1), "code check"); } 1282 1283 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind) 1284 : LIR_Op(code, result, info) 1285 , _opr(opr) 1286 , _patch(patch) 1287 , _type(type) { 1288 assert(code == lir_move, "must be"); 1289 set_kind(kind); 1290 } 1291 1292 LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info) 1293 : LIR_Op(code, LIR_OprFact::illegalOpr, info) 1294 , _opr(opr) 1295 , _patch(lir_patch_none) 1296 , _type(T_ILLEGAL) { assert(is_in_range(code, begin_op1, end_op1), "code check"); } 1297 1298 LIR_Opr in_opr() const { return _opr; } 1299 LIR_PatchCode patch_code() const { return _patch; } 1300 BasicType type() const { return _type; } 1301 1302 LIR_MoveKind move_kind() const { 1303 assert(code() == lir_move, "must be"); 1304 return (LIR_MoveKind)_flags; 1305 } 1306 1307 virtual void emit_code(LIR_Assembler* masm); 1308 virtual LIR_Op1* as_Op1() { return this; } 1309 virtual const char * name() const PRODUCT_RETURN0; 1310 1311 void set_in_opr(LIR_Opr opr) { _opr = opr; } 1312 1313 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1314 virtual void verify() const; 1315 }; 1316 1317 1318 // for runtime calls 1319 class LIR_OpRTCall: public LIR_OpCall { 1320 friend class LIR_OpVisitState; 1321 1322 private: 1323 LIR_Opr _tmp; 1324 public: 1325 LIR_OpRTCall(address addr, LIR_Opr tmp, 1326 LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = NULL) 1327 : LIR_OpCall(lir_rtcall, addr, result, arguments, info) 1328 , _tmp(tmp) {} 1329 1330 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1331 virtual void emit_code(LIR_Assembler* masm); 1332 virtual LIR_OpRTCall* as_OpRTCall() { return this; } 1333 1334 LIR_Opr tmp() const { return _tmp; } 1335 1336 virtual void verify() const; 1337 }; 1338 1339 1340 class LIR_OpBranch: public LIR_Op { 1341 friend class LIR_OpVisitState; 1342 1343 private: 1344 LIR_Condition _cond; 1345 BasicType _type; 1346 Label* _label; 1347 BlockBegin* _block; // if this is a branch to a block, this is the block 1348 BlockBegin* _ublock; // if this is a float-branch, this is the unorderd block 1349 CodeStub* _stub; // if this is a branch to a stub, this is the stub 1350 1351 public: 1352 LIR_OpBranch(LIR_Condition cond, Label* lbl) 1353 : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*) NULL) 1354 , _cond(cond) 1355 , _label(lbl) 1356 , _block(NULL) 1357 , _ublock(NULL) 1358 , _stub(NULL) { } 1359 1360 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block); 1361 LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub); 1362 1363 // for unordered comparisons 1364 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock); 1365 1366 LIR_Condition cond() const { return _cond; } 1367 BasicType type() const { return _type; } 1368 Label* label() const { return _label; } 1369 BlockBegin* block() const { return _block; } 1370 BlockBegin* ublock() const { return _ublock; } 1371 CodeStub* stub() const { return _stub; } 1372 1373 void change_block(BlockBegin* b); 1374 void change_ublock(BlockBegin* b); 1375 void negate_cond(); 1376 1377 virtual void emit_code(LIR_Assembler* masm); 1378 virtual LIR_OpBranch* as_OpBranch() { return this; } 1379 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1380 }; 1381 1382 1383 class ConversionStub; 1384 1385 class LIR_OpConvert: public LIR_Op1 { 1386 friend class LIR_OpVisitState; 1387 1388 private: 1389 Bytecodes::Code _bytecode; 1390 ConversionStub* _stub; 1391 #ifdef PPC 1392 LIR_Opr _tmp1; 1393 LIR_Opr _tmp2; 1394 #endif 1395 1396 public: 1397 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub) 1398 : LIR_Op1(lir_convert, opr, result) 1399 , _stub(stub) 1400 #ifdef PPC 1401 , _tmp1(LIR_OprDesc::illegalOpr()) 1402 , _tmp2(LIR_OprDesc::illegalOpr()) 1403 #endif 1404 , _bytecode(code) {} 1405 1406 #ifdef PPC 1407 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub 1408 ,LIR_Opr tmp1, LIR_Opr tmp2) 1409 : LIR_Op1(lir_convert, opr, result) 1410 , _stub(stub) 1411 , _tmp1(tmp1) 1412 , _tmp2(tmp2) 1413 , _bytecode(code) {} 1414 #endif 1415 1416 Bytecodes::Code bytecode() const { return _bytecode; } 1417 ConversionStub* stub() const { return _stub; } 1418 #ifdef PPC 1419 LIR_Opr tmp1() const { return _tmp1; } 1420 LIR_Opr tmp2() const { return _tmp2; } 1421 #endif 1422 1423 virtual void emit_code(LIR_Assembler* masm); 1424 virtual LIR_OpConvert* as_OpConvert() { return this; } 1425 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1426 1427 static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN; 1428 }; 1429 1430 1431 // LIR_OpAllocObj 1432 class LIR_OpAllocObj : public LIR_Op1 { 1433 friend class LIR_OpVisitState; 1434 1435 private: 1436 LIR_Opr _tmp1; 1437 LIR_Opr _tmp2; 1438 LIR_Opr _tmp3; 1439 LIR_Opr _tmp4; 1440 int _hdr_size; 1441 int _obj_size; 1442 CodeStub* _stub; 1443 bool _init_check; 1444 1445 public: 1446 LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result, 1447 LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4, 1448 int hdr_size, int obj_size, bool init_check, CodeStub* stub) 1449 : LIR_Op1(lir_alloc_object, klass, result) 1450 , _tmp1(t1) 1451 , _tmp2(t2) 1452 , _tmp3(t3) 1453 , _tmp4(t4) 1454 , _hdr_size(hdr_size) 1455 , _obj_size(obj_size) 1456 , _init_check(init_check) 1457 , _stub(stub) { } 1458 1459 LIR_Opr klass() const { return in_opr(); } 1460 LIR_Opr obj() const { return result_opr(); } 1461 LIR_Opr tmp1() const { return _tmp1; } 1462 LIR_Opr tmp2() const { return _tmp2; } 1463 LIR_Opr tmp3() const { return _tmp3; } 1464 LIR_Opr tmp4() const { return _tmp4; } 1465 int header_size() const { return _hdr_size; } 1466 int object_size() const { return _obj_size; } 1467 bool init_check() const { return _init_check; } 1468 CodeStub* stub() const { return _stub; } 1469 1470 virtual void emit_code(LIR_Assembler* masm); 1471 virtual LIR_OpAllocObj * as_OpAllocObj () { return this; } 1472 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1473 }; 1474 1475 1476 // LIR_OpRoundFP 1477 class LIR_OpRoundFP : public LIR_Op1 { 1478 friend class LIR_OpVisitState; 1479 1480 private: 1481 LIR_Opr _tmp; 1482 1483 public: 1484 LIR_OpRoundFP(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) 1485 : LIR_Op1(lir_roundfp, reg, result) 1486 , _tmp(stack_loc_temp) {} 1487 1488 LIR_Opr tmp() const { return _tmp; } 1489 virtual LIR_OpRoundFP* as_OpRoundFP() { return this; } 1490 void print_instr(outputStream* out) const PRODUCT_RETURN; 1491 }; 1492 1493 // LIR_OpTypeCheck 1494 class LIR_OpTypeCheck: public LIR_Op { 1495 friend class LIR_OpVisitState; 1496 1497 private: 1498 LIR_Opr _object; 1499 LIR_Opr _array; 1500 ciKlass* _klass; 1501 LIR_Opr _tmp1; 1502 LIR_Opr _tmp2; 1503 LIR_Opr _tmp3; 1504 bool _fast_check; 1505 CodeEmitInfo* _info_for_patch; 1506 CodeEmitInfo* _info_for_exception; 1507 CodeStub* _stub; 1508 ciMethod* _profiled_method; 1509 int _profiled_bci; 1510 bool _should_profile; 1511 1512 public: 1513 LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass, 1514 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, 1515 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub); 1516 LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array, 1517 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception); 1518 1519 LIR_Opr object() const { return _object; } 1520 LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; } 1521 LIR_Opr tmp1() const { return _tmp1; } 1522 LIR_Opr tmp2() const { return _tmp2; } 1523 LIR_Opr tmp3() const { return _tmp3; } 1524 ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; } 1525 bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; } 1526 CodeEmitInfo* info_for_patch() const { return _info_for_patch; } 1527 CodeEmitInfo* info_for_exception() const { return _info_for_exception; } 1528 CodeStub* stub() const { return _stub; } 1529 1530 // methodDataOop profiling 1531 void set_profiled_method(ciMethod *method) { _profiled_method = method; } 1532 void set_profiled_bci(int bci) { _profiled_bci = bci; } 1533 void set_should_profile(bool b) { _should_profile = b; } 1534 ciMethod* profiled_method() const { return _profiled_method; } 1535 int profiled_bci() const { return _profiled_bci; } 1536 bool should_profile() const { return _should_profile; } 1537 1538 virtual void emit_code(LIR_Assembler* masm); 1539 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; } 1540 void print_instr(outputStream* out) const PRODUCT_RETURN; 1541 }; 1542 1543 // LIR_Op2 1544 class LIR_Op2: public LIR_Op { 1545 friend class LIR_OpVisitState; 1546 1547 int _fpu_stack_size; // for sin/cos implementation on Intel 1548 1549 protected: 1550 LIR_Opr _opr1; 1551 LIR_Opr _opr2; 1552 BasicType _type; 1553 LIR_Opr _tmp; 1554 LIR_Condition _condition; 1555 1556 void verify() const; 1557 1558 public: 1559 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = NULL) 1560 : LIR_Op(code, LIR_OprFact::illegalOpr, info) 1561 , _opr1(opr1) 1562 , _opr2(opr2) 1563 , _type(T_ILLEGAL) 1564 , _condition(condition) 1565 , _fpu_stack_size(0) 1566 , _tmp(LIR_OprFact::illegalOpr) { 1567 assert(code == lir_cmp, "code check"); 1568 } 1569 1570 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result) 1571 : LIR_Op(code, result, NULL) 1572 , _opr1(opr1) 1573 , _opr2(opr2) 1574 , _type(T_ILLEGAL) 1575 , _condition(condition) 1576 , _fpu_stack_size(0) 1577 , _tmp(LIR_OprFact::illegalOpr) { 1578 assert(code == lir_cmove, "code check"); 1579 } 1580 1581 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result = LIR_OprFact::illegalOpr, 1582 CodeEmitInfo* info = NULL, BasicType type = T_ILLEGAL) 1583 : LIR_Op(code, result, info) 1584 , _opr1(opr1) 1585 , _opr2(opr2) 1586 , _type(type) 1587 , _condition(lir_cond_unknown) 1588 , _fpu_stack_size(0) 1589 , _tmp(LIR_OprFact::illegalOpr) { 1590 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check"); 1591 } 1592 1593 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp) 1594 : LIR_Op(code, result, NULL) 1595 , _opr1(opr1) 1596 , _opr2(opr2) 1597 , _type(T_ILLEGAL) 1598 , _condition(lir_cond_unknown) 1599 , _fpu_stack_size(0) 1600 , _tmp(tmp) { 1601 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check"); 1602 } 1603 1604 LIR_Opr in_opr1() const { return _opr1; } 1605 LIR_Opr in_opr2() const { return _opr2; } 1606 BasicType type() const { return _type; } 1607 LIR_Opr tmp_opr() const { return _tmp; } 1608 LIR_Condition condition() const { 1609 assert(code() == lir_cmp || code() == lir_cmove, "only valid for cmp and cmove"); return _condition; 1610 } 1611 void set_condition(LIR_Condition condition) { 1612 assert(code() == lir_cmp || code() == lir_cmove, "only valid for cmp and cmove"); _condition = condition; 1613 } 1614 1615 void set_fpu_stack_size(int size) { _fpu_stack_size = size; } 1616 int fpu_stack_size() const { return _fpu_stack_size; } 1617 1618 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; } 1619 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; } 1620 1621 virtual void emit_code(LIR_Assembler* masm); 1622 virtual LIR_Op2* as_Op2() { return this; } 1623 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1624 }; 1625 1626 class LIR_OpAllocArray : public LIR_Op { 1627 friend class LIR_OpVisitState; 1628 1629 private: 1630 LIR_Opr _klass; 1631 LIR_Opr _len; 1632 LIR_Opr _tmp1; 1633 LIR_Opr _tmp2; 1634 LIR_Opr _tmp3; 1635 LIR_Opr _tmp4; 1636 BasicType _type; 1637 CodeStub* _stub; 1638 1639 public: 1640 LIR_OpAllocArray(LIR_Opr klass, LIR_Opr len, LIR_Opr result, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4, BasicType type, CodeStub* stub) 1641 : LIR_Op(lir_alloc_array, result, NULL) 1642 , _klass(klass) 1643 , _len(len) 1644 , _tmp1(t1) 1645 , _tmp2(t2) 1646 , _tmp3(t3) 1647 , _tmp4(t4) 1648 , _type(type) 1649 , _stub(stub) {} 1650 1651 LIR_Opr klass() const { return _klass; } 1652 LIR_Opr len() const { return _len; } 1653 LIR_Opr obj() const { return result_opr(); } 1654 LIR_Opr tmp1() const { return _tmp1; } 1655 LIR_Opr tmp2() const { return _tmp2; } 1656 LIR_Opr tmp3() const { return _tmp3; } 1657 LIR_Opr tmp4() const { return _tmp4; } 1658 BasicType type() const { return _type; } 1659 CodeStub* stub() const { return _stub; } 1660 1661 virtual void emit_code(LIR_Assembler* masm); 1662 virtual LIR_OpAllocArray * as_OpAllocArray () { return this; } 1663 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1664 }; 1665 1666 1667 class LIR_Op3: public LIR_Op { 1668 friend class LIR_OpVisitState; 1669 1670 private: 1671 LIR_Opr _opr1; 1672 LIR_Opr _opr2; 1673 LIR_Opr _opr3; 1674 public: 1675 LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = NULL) 1676 : LIR_Op(code, result, info) 1677 , _opr1(opr1) 1678 , _opr2(opr2) 1679 , _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); } 1680 LIR_Opr in_opr1() const { return _opr1; } 1681 LIR_Opr in_opr2() const { return _opr2; } 1682 LIR_Opr in_opr3() const { return _opr3; } 1683 1684 virtual void emit_code(LIR_Assembler* masm); 1685 virtual LIR_Op3* as_Op3() { return this; } 1686 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1687 }; 1688 1689 1690 //-------------------------------- 1691 class LabelObj: public CompilationResourceObj { 1692 private: 1693 Label _label; 1694 public: 1695 LabelObj() {} 1696 Label* label() { return &_label; } 1697 }; 1698 1699 1700 class LIR_OpLock: public LIR_Op { 1701 friend class LIR_OpVisitState; 1702 1703 private: 1704 LIR_Opr _hdr; 1705 LIR_Opr _obj; 1706 LIR_Opr _lock; 1707 LIR_Opr _scratch; 1708 CodeStub* _stub; 1709 public: 1710 LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info) 1711 : LIR_Op(code, LIR_OprFact::illegalOpr, info) 1712 , _hdr(hdr) 1713 , _obj(obj) 1714 , _lock(lock) 1715 , _scratch(scratch) 1716 , _stub(stub) {} 1717 1718 LIR_Opr hdr_opr() const { return _hdr; } 1719 LIR_Opr obj_opr() const { return _obj; } 1720 LIR_Opr lock_opr() const { return _lock; } 1721 LIR_Opr scratch_opr() const { return _scratch; } 1722 CodeStub* stub() const { return _stub; } 1723 1724 virtual void emit_code(LIR_Assembler* masm); 1725 virtual LIR_OpLock* as_OpLock() { return this; } 1726 void print_instr(outputStream* out) const PRODUCT_RETURN; 1727 }; 1728 1729 1730 class LIR_OpDelay: public LIR_Op { 1731 friend class LIR_OpVisitState; 1732 1733 private: 1734 LIR_Op* _op; 1735 1736 public: 1737 LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info): 1738 LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info), 1739 _op(op) { 1740 assert(op->code() == lir_nop || LIRFillDelaySlots, "should be filling with nops"); 1741 } 1742 virtual void emit_code(LIR_Assembler* masm); 1743 virtual LIR_OpDelay* as_OpDelay() { return this; } 1744 void print_instr(outputStream* out) const PRODUCT_RETURN; 1745 LIR_Op* delay_op() const { return _op; } 1746 CodeEmitInfo* call_info() const { return info(); } 1747 }; 1748 1749 1750 // LIR_OpCompareAndSwap 1751 class LIR_OpCompareAndSwap : public LIR_Op { 1752 friend class LIR_OpVisitState; 1753 1754 private: 1755 LIR_Opr _addr; 1756 LIR_Opr _cmp_value; 1757 LIR_Opr _new_value; 1758 LIR_Opr _tmp1; 1759 LIR_Opr _tmp2; 1760 1761 public: 1762 LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 1763 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) 1764 : LIR_Op(code, result, NULL) // no result, no info 1765 , _addr(addr) 1766 , _cmp_value(cmp_value) 1767 , _new_value(new_value) 1768 , _tmp1(t1) 1769 , _tmp2(t2) { } 1770 1771 LIR_Opr addr() const { return _addr; } 1772 LIR_Opr cmp_value() const { return _cmp_value; } 1773 LIR_Opr new_value() const { return _new_value; } 1774 LIR_Opr tmp1() const { return _tmp1; } 1775 LIR_Opr tmp2() const { return _tmp2; } 1776 1777 virtual void emit_code(LIR_Assembler* masm); 1778 virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; } 1779 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1780 }; 1781 1782 // LIR_OpProfileCall 1783 class LIR_OpProfileCall : public LIR_Op { 1784 friend class LIR_OpVisitState; 1785 1786 private: 1787 ciMethod* _profiled_method; 1788 int _profiled_bci; 1789 LIR_Opr _mdo; 1790 LIR_Opr _recv; 1791 LIR_Opr _tmp1; 1792 ciKlass* _known_holder; 1793 1794 public: 1795 // Destroys recv 1796 LIR_OpProfileCall(LIR_Code code, ciMethod* profiled_method, int profiled_bci, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* known_holder) 1797 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) // no result, no info 1798 , _profiled_method(profiled_method) 1799 , _profiled_bci(profiled_bci) 1800 , _mdo(mdo) 1801 , _recv(recv) 1802 , _tmp1(t1) 1803 , _known_holder(known_holder) { } 1804 1805 ciMethod* profiled_method() const { return _profiled_method; } 1806 int profiled_bci() const { return _profiled_bci; } 1807 LIR_Opr mdo() const { return _mdo; } 1808 LIR_Opr recv() const { return _recv; } 1809 LIR_Opr tmp1() const { return _tmp1; } 1810 ciKlass* known_holder() const { return _known_holder; } 1811 1812 virtual void emit_code(LIR_Assembler* masm); 1813 virtual LIR_OpProfileCall* as_OpProfileCall() { return this; } 1814 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1815 }; 1816 1817 class LIR_InsertionBuffer; 1818 1819 //--------------------------------LIR_List--------------------------------------------------- 1820 // Maintains a list of LIR instructions (one instance of LIR_List per basic block) 1821 // The LIR instructions are appended by the LIR_List class itself; 1822 // 1823 // Notes: 1824 // - all offsets are(should be) in bytes 1825 // - local positions are specified with an offset, with offset 0 being local 0 1826 1827 class LIR_List: public CompilationResourceObj { 1828 private: 1829 LIR_OpList _operations; 1830 1831 Compilation* _compilation; 1832 #ifndef PRODUCT 1833 BlockBegin* _block; 1834 #endif 1835 #ifdef ASSERT 1836 const char * _file; 1837 int _line; 1838 #endif 1839 1840 void append(LIR_Op* op) { 1841 if (op->source() == NULL) 1842 op->set_source(_compilation->current_instruction()); 1843 #ifndef PRODUCT 1844 if (PrintIRWithLIR) { 1845 _compilation->maybe_print_current_instruction(); 1846 op->print(); tty->cr(); 1847 } 1848 #endif // PRODUCT 1849 1850 _operations.append(op); 1851 1852 #ifdef ASSERT 1853 op->verify(); 1854 op->set_file_and_line(_file, _line); 1855 _file = NULL; 1856 _line = 0; 1857 #endif 1858 } 1859 1860 public: 1861 LIR_List(Compilation* compilation, BlockBegin* block = NULL); 1862 1863 #ifdef ASSERT 1864 void set_file_and_line(const char * file, int line); 1865 #endif 1866 1867 //---------- accessors --------------- 1868 LIR_OpList* instructions_list() { return &_operations; } 1869 int length() const { return _operations.length(); } 1870 LIR_Op* at(int i) const { return _operations.at(i); } 1871 1872 NOT_PRODUCT(BlockBegin* block() const { return _block; }); 1873 1874 // insert LIR_Ops in buffer to right places in LIR_List 1875 void append(LIR_InsertionBuffer* buffer); 1876 1877 //---------- mutators --------------- 1878 void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); } 1879 void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); } 1880 void remove_at(int i) { _operations.remove_at(i); } 1881 1882 //---------- printing ------------- 1883 void print_instructions() PRODUCT_RETURN; 1884 1885 1886 //---------- instructions ------------- 1887 void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result, 1888 address dest, LIR_OprList* arguments, 1889 CodeEmitInfo* info) { 1890 append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info)); 1891 } 1892 void call_static(ciMethod* method, LIR_Opr result, 1893 address dest, LIR_OprList* arguments, CodeEmitInfo* info) { 1894 append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info)); 1895 } 1896 void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result, 1897 address dest, LIR_OprList* arguments, CodeEmitInfo* info) { 1898 append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info)); 1899 } 1900 void call_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result, 1901 intptr_t vtable_offset, LIR_OprList* arguments, CodeEmitInfo* info) { 1902 append(new LIR_OpJavaCall(lir_virtual_call, method, receiver, result, vtable_offset, arguments, info)); 1903 } 1904 void call_dynamic(ciMethod* method, LIR_Opr receiver, LIR_Opr result, 1905 address dest, LIR_OprList* arguments, CodeEmitInfo* info) { 1906 append(new LIR_OpJavaCall(lir_dynamic_call, method, receiver, result, dest, arguments, info)); 1907 } 1908 1909 void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); } 1910 void word_align() { append(new LIR_Op0(lir_word_align)); } 1911 void membar() { append(new LIR_Op0(lir_membar)); } 1912 void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); } 1913 void membar_release() { append(new LIR_Op0(lir_membar_release)); } 1914 1915 void nop() { append(new LIR_Op0(lir_nop)); } 1916 void build_frame() { append(new LIR_Op0(lir_build_frame)); } 1917 1918 void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); } 1919 void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); } 1920 1921 void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); } 1922 1923 void negate(LIR_Opr from, LIR_Opr to) { append(new LIR_Op1(lir_neg, from, to)); } 1924 void leal(LIR_Opr from, LIR_Opr result_reg) { append(new LIR_Op1(lir_leal, from, result_reg)); } 1925 1926 // result is a stack location for old backend and vreg for UseLinearScan 1927 // stack_loc_temp is an illegal register for old backend 1928 void roundfp(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) { append(new LIR_OpRoundFP(reg, stack_loc_temp, result)); } 1929 void unaligned_move(LIR_Address* src, LIR_Opr dst) { append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, dst->type(), lir_patch_none, NULL, lir_move_unaligned)); } 1930 void unaligned_move(LIR_Opr src, LIR_Address* dst) { append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), src->type(), lir_patch_none, NULL, lir_move_unaligned)); } 1931 void unaligned_move(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, NULL, lir_move_unaligned)); } 1932 void move(LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); } 1933 void move(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info)); } 1934 void move(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info)); } 1935 1936 void volatile_move(LIR_Opr src, LIR_Opr dst, BasicType type, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none) { append(new LIR_Op1(lir_move, src, dst, type, patch_code, info, lir_move_volatile)); } 1937 1938 void oop2reg (jobject o, LIR_Opr reg) { append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg)); } 1939 void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info); 1940 1941 void return_op(LIR_Opr result) { append(new LIR_Op1(lir_return, result)); } 1942 1943 void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); } 1944 1945 #ifdef PPC 1946 void convert(Bytecodes::Code code, LIR_Opr left, LIR_Opr dst, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_OpConvert(code, left, dst, NULL, tmp1, tmp2)); } 1947 #endif 1948 void convert(Bytecodes::Code code, LIR_Opr left, LIR_Opr dst, ConversionStub* stub = NULL/*, bool is_32bit = false*/) { append(new LIR_OpConvert(code, left, dst, stub)); } 1949 1950 void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); } 1951 void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); } 1952 void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); } 1953 1954 void pack64(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_pack64, src, dst, T_LONG, lir_patch_none, NULL)); } 1955 void unpack64(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_unpack64, src, dst, T_LONG, lir_patch_none, NULL)); } 1956 1957 void null_check(LIR_Opr opr, CodeEmitInfo* info) { append(new LIR_Op1(lir_null_check, opr, info)); } 1958 void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) { 1959 append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info)); 1960 } 1961 void unwind_exception(LIR_Opr exceptionOop) { 1962 append(new LIR_Op1(lir_unwind, exceptionOop)); 1963 } 1964 1965 void compare_to (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { 1966 append(new LIR_Op2(lir_compare_to, left, right, dst)); 1967 } 1968 1969 void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); } 1970 void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); } 1971 1972 void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = NULL) { 1973 append(new LIR_Op2(lir_cmp, condition, left, right, info)); 1974 } 1975 void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = NULL) { 1976 cmp(condition, left, LIR_OprFact::intConst(right), info); 1977 } 1978 1979 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info); 1980 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info); 1981 1982 void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst) { 1983 append(new LIR_Op2(lir_cmove, condition, src1, src2, dst)); 1984 } 1985 1986 void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 1987 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr); 1988 void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 1989 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr); 1990 void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 1991 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr); 1992 1993 void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_abs , from, tmp, to)); } 1994 void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_sqrt, from, tmp, to)); } 1995 void log (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log, from, LIR_OprFact::illegalOpr, to, tmp)); } 1996 void log10 (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log10, from, LIR_OprFact::illegalOpr, to, tmp)); } 1997 void sin (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_sin , from, tmp1, to, tmp2)); } 1998 void cos (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_cos , from, tmp1, to, tmp2)); } 1999 void tan (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_tan , from, tmp1, to, tmp2)); } 2000 2001 void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); } 2002 void sub (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_sub, left, right, res, info)); } 2003 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); } 2004 void mul_strictfp (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_mul_strictfp, left, right, res, tmp)); } 2005 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_div, left, right, res, info)); } 2006 void div_strictfp (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_div_strictfp, left, right, res, tmp)); } 2007 void rem (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_rem, left, right, res, info)); } 2008 2009 void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2010 void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code); 2011 2012 void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none); 2013 2014 void prefetch(LIR_Address* addr, bool is_store); 2015 2016 void store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2017 void store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2018 void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none); 2019 void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2020 void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code); 2021 2022 void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2023 void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2024 void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2025 void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2026 2027 void allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4, int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub); 2028 void allocate_array(LIR_Opr dst, LIR_Opr len, LIR_Opr t1,LIR_Opr t2, LIR_Opr t3,LIR_Opr t4, BasicType type, LIR_Opr klass, CodeStub* stub); 2029 2030 // jump is an unconditional branch 2031 void jump(BlockBegin* block) { 2032 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, block)); 2033 } 2034 void jump(CodeStub* stub) { 2035 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, stub)); 2036 } 2037 void branch(LIR_Condition cond, Label* lbl) { append(new LIR_OpBranch(cond, lbl)); } 2038 void branch(LIR_Condition cond, BasicType type, BlockBegin* block) { 2039 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons"); 2040 append(new LIR_OpBranch(cond, type, block)); 2041 } 2042 void branch(LIR_Condition cond, BasicType type, CodeStub* stub) { 2043 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons"); 2044 append(new LIR_OpBranch(cond, type, stub)); 2045 } 2046 void branch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* unordered) { 2047 assert(type == T_FLOAT || type == T_DOUBLE, "fp comparisons only"); 2048 append(new LIR_OpBranch(cond, type, block, unordered)); 2049 } 2050 2051 void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp); 2052 void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp); 2053 void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp); 2054 2055 void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); } 2056 void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); } 2057 void unsigned_shift_right(LIR_Opr value, int count, LIR_Opr dst) { unsigned_shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); } 2058 2059 void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); } 2060 void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less); 2061 2062 void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) { 2063 append(new LIR_OpRTCall(routine, tmp, result, arguments)); 2064 } 2065 2066 void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result, 2067 LIR_OprList* arguments, CodeEmitInfo* info) { 2068 append(new LIR_OpRTCall(routine, tmp, result, arguments, info)); 2069 } 2070 2071 void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); } 2072 void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub); 2073 void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info); 2074 2075 void set_24bit_fpu() { append(new LIR_Op0(lir_24bit_FPU )); } 2076 void restore_fpu() { append(new LIR_Op0(lir_reset_FPU )); } 2077 void breakpoint() { append(new LIR_Op0(lir_breakpoint)); } 2078 2079 void arraycopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info) { append(new LIR_OpArrayCopy(src, src_pos, dst, dst_pos, length, tmp, expected_type, flags, info)); } 2080 2081 void fpop_raw() { append(new LIR_Op0(lir_fpop_raw)); } 2082 2083 void instanceof(LIR_Opr result, LIR_Opr object, ciKlass* klass, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, CodeEmitInfo* info_for_patch, ciMethod* profiled_method, int profiled_bci); 2084 void store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception); 2085 2086 void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass, 2087 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, 2088 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub, 2089 ciMethod* profiled_method, int profiled_bci); 2090 // methodDataOop profiling 2091 void profile_call(ciMethod* method, int bci, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* cha_klass) { 2092 append(new LIR_OpProfileCall(lir_profile_call, method, bci, mdo, recv, t1, cha_klass)); 2093 } 2094 }; 2095 2096 void print_LIR(BlockList* blocks); 2097 2098 class LIR_InsertionBuffer : public CompilationResourceObj { 2099 private: 2100 LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (NULL when uninitialized) 2101 2102 // list of insertion points. index and count are stored alternately: 2103 // _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted 2104 // _index_and_count[i * 2 + 1]: the number of ops to be inserted at index 2105 intStack _index_and_count; 2106 2107 // the LIR_Ops to be inserted 2108 LIR_OpList _ops; 2109 2110 void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); } 2111 void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); } 2112 void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); } 2113 2114 #ifdef ASSERT 2115 void verify(); 2116 #endif 2117 public: 2118 LIR_InsertionBuffer() : _lir(NULL), _index_and_count(8), _ops(8) { } 2119 2120 // must be called before using the insertion buffer 2121 void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); } 2122 bool initialized() const { return _lir != NULL; } 2123 // called automatically when the buffer is appended to the LIR_List 2124 void finish() { _lir = NULL; } 2125 2126 // accessors 2127 LIR_List* lir_list() const { return _lir; } 2128 int number_of_insertion_points() const { return _index_and_count.length() >> 1; } 2129 int index_at(int i) const { return _index_and_count.at((i << 1)); } 2130 int count_at(int i) const { return _index_and_count.at((i << 1) + 1); } 2131 2132 int number_of_ops() const { return _ops.length(); } 2133 LIR_Op* op_at(int i) const { return _ops.at(i); } 2134 2135 // append an instruction to the buffer 2136 void append(int index, LIR_Op* op); 2137 2138 // instruction 2139 void move(int index, LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = NULL) { append(index, new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); } 2140 }; 2141 2142 2143 // 2144 // LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way. 2145 // Calling a LIR_Op's visit function with a LIR_OpVisitState causes 2146 // information about the input, output and temporaries used by the 2147 // op to be recorded. It also records whether the op has call semantics 2148 // and also records all the CodeEmitInfos used by this op. 2149 // 2150 2151 2152 class LIR_OpVisitState: public StackObj { 2153 public: 2154 typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode; 2155 2156 enum { 2157 maxNumberOfOperands = 16, 2158 maxNumberOfInfos = 4 2159 }; 2160 2161 private: 2162 LIR_Op* _op; 2163 2164 // optimization: the operands and infos are not stored in a variable-length 2165 // list, but in a fixed-size array to save time of size checks and resizing 2166 int _oprs_len[numModes]; 2167 LIR_Opr* _oprs_new[numModes][maxNumberOfOperands]; 2168 int _info_len; 2169 CodeEmitInfo* _info_new[maxNumberOfInfos]; 2170 2171 bool _has_call; 2172 bool _has_slow_case; 2173 2174 2175 // only include register operands 2176 // addresses are decomposed to the base and index registers 2177 // constants and stack operands are ignored 2178 void append(LIR_Opr& opr, OprMode mode) { 2179 assert(opr->is_valid(), "should not call this otherwise"); 2180 assert(mode >= 0 && mode < numModes, "bad mode"); 2181 2182 if (opr->is_register()) { 2183 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow"); 2184 _oprs_new[mode][_oprs_len[mode]++] = &opr; 2185 2186 } else if (opr->is_pointer()) { 2187 LIR_Address* address = opr->as_address_ptr(); 2188 if (address != NULL) { 2189 // special handling for addresses: add base and index register of the address 2190 // both are always input operands! 2191 if (address->_base->is_valid()) { 2192 assert(address->_base->is_register(), "must be"); 2193 assert(_oprs_len[inputMode] < maxNumberOfOperands, "array overflow"); 2194 _oprs_new[inputMode][_oprs_len[inputMode]++] = &address->_base; 2195 } 2196 if (address->_index->is_valid()) { 2197 assert(address->_index->is_register(), "must be"); 2198 assert(_oprs_len[inputMode] < maxNumberOfOperands, "array overflow"); 2199 _oprs_new[inputMode][_oprs_len[inputMode]++] = &address->_index; 2200 } 2201 2202 } else { 2203 assert(opr->is_constant(), "constant operands are not processed"); 2204 } 2205 } else { 2206 assert(opr->is_stack(), "stack operands are not processed"); 2207 } 2208 } 2209 2210 void append(CodeEmitInfo* info) { 2211 assert(info != NULL, "should not call this otherwise"); 2212 assert(_info_len < maxNumberOfInfos, "array overflow"); 2213 _info_new[_info_len++] = info; 2214 } 2215 2216 public: 2217 LIR_OpVisitState() { reset(); } 2218 2219 LIR_Op* op() const { return _op; } 2220 void set_op(LIR_Op* op) { reset(); _op = op; } 2221 2222 bool has_call() const { return _has_call; } 2223 bool has_slow_case() const { return _has_slow_case; } 2224 2225 void reset() { 2226 _op = NULL; 2227 _has_call = false; 2228 _has_slow_case = false; 2229 2230 _oprs_len[inputMode] = 0; 2231 _oprs_len[tempMode] = 0; 2232 _oprs_len[outputMode] = 0; 2233 _info_len = 0; 2234 } 2235 2236 2237 int opr_count(OprMode mode) const { 2238 assert(mode >= 0 && mode < numModes, "bad mode"); 2239 return _oprs_len[mode]; 2240 } 2241 2242 LIR_Opr opr_at(OprMode mode, int index) const { 2243 assert(mode >= 0 && mode < numModes, "bad mode"); 2244 assert(index >= 0 && index < _oprs_len[mode], "index out of bound"); 2245 return *_oprs_new[mode][index]; 2246 } 2247 2248 void set_opr_at(OprMode mode, int index, LIR_Opr opr) const { 2249 assert(mode >= 0 && mode < numModes, "bad mode"); 2250 assert(index >= 0 && index < _oprs_len[mode], "index out of bound"); 2251 *_oprs_new[mode][index] = opr; 2252 } 2253 2254 int info_count() const { 2255 return _info_len; 2256 } 2257 2258 CodeEmitInfo* info_at(int index) const { 2259 assert(index < _info_len, "index out of bounds"); 2260 return _info_new[index]; 2261 } 2262 2263 XHandlers* all_xhandler(); 2264 2265 // collects all register operands of the instruction 2266 void visit(LIR_Op* op); 2267 2268 #if ASSERT 2269 // check that an operation has no operands 2270 bool no_operands(LIR_Op* op); 2271 #endif 2272 2273 // LIR_Op visitor functions use these to fill in the state 2274 void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); } 2275 void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); } 2276 void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); } 2277 void do_info(CodeEmitInfo* info) { append(info); } 2278 2279 void do_stub(CodeStub* stub); 2280 void do_call() { _has_call = true; } 2281 void do_slow_case() { _has_slow_case = true; } 2282 void do_slow_case(CodeEmitInfo* info) { 2283 _has_slow_case = true; 2284 append(info); 2285 } 2286 }; 2287 2288 2289 inline LIR_Opr LIR_OprDesc::illegalOpr() { return LIR_OprFact::illegalOpr; }; 2290 2291 #endif // SHARE_VM_C1_C1_LIR_HPP