1 /* 2 * Copyright (c) 2000, 2025, 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_C1_C1_LIR_HPP 26 #define SHARE_C1_C1_LIR_HPP 27 28 #include "c1/c1_Defs.hpp" 29 #include "c1/c1_ValueType.hpp" 30 #include "oops/method.hpp" 31 #include "utilities/globalDefinitions.hpp" 32 #include "utilities/macros.hpp" 33 34 class BlockBegin; 35 class BlockList; 36 class LIR_Assembler; 37 class CodeEmitInfo; 38 class CodeStub; 39 class CodeStubList; 40 class C1SafepointPollStub; 41 class ArrayCopyStub; 42 class LIR_Op; 43 class ciType; 44 class ValueType; 45 class LIR_OpVisitState; 46 47 //--------------------------------------------------------------------- 48 // LIR Operands 49 // LIR_OprPtr 50 // LIR_Const 51 // LIR_Address 52 //--------------------------------------------------------------------- 53 class LIR_OprPtr; 54 class LIR_Const; 55 class LIR_Address; 56 class LIR_OprVisitor; 57 class LIR_Opr; 58 59 typedef int RegNr; 60 61 typedef GrowableArray<LIR_Opr> LIR_OprList; 62 typedef GrowableArray<LIR_Op*> LIR_OpArray; 63 typedef GrowableArray<LIR_Op*> LIR_OpList; 64 65 // define LIR_OprPtr early so LIR_Opr can refer to it 66 class LIR_OprPtr: public CompilationResourceObj { 67 public: 68 bool is_oop_pointer() const { return (type() == T_OBJECT); } 69 bool is_float_kind() const { BasicType t = type(); return (t == T_FLOAT) || (t == T_DOUBLE); } 70 71 virtual LIR_Const* as_constant() { return nullptr; } 72 virtual LIR_Address* as_address() { return nullptr; } 73 virtual BasicType type() const = 0; 74 virtual void print_value_on(outputStream* out) const = 0; 75 }; 76 77 78 79 // LIR constants 80 class LIR_Const: public LIR_OprPtr { 81 private: 82 JavaValue _value; 83 84 void type_check(BasicType t) const { assert(type() == t, "type check"); } 85 void type_check(BasicType t1, BasicType t2) const { assert(type() == t1 || type() == t2, "type check"); } 86 void type_check(BasicType t1, BasicType t2, BasicType t3) const { assert(type() == t1 || type() == t2 || type() == t3, "type check"); } 87 88 public: 89 LIR_Const(jint i, bool is_address=false) { _value.set_type(is_address?T_ADDRESS:T_INT); _value.set_jint(i); } 90 LIR_Const(jlong l) { _value.set_type(T_LONG); _value.set_jlong(l); } 91 LIR_Const(jfloat f) { _value.set_type(T_FLOAT); _value.set_jfloat(f); } 92 LIR_Const(jdouble d) { _value.set_type(T_DOUBLE); _value.set_jdouble(d); } 93 LIR_Const(jobject o) { _value.set_type(T_OBJECT); _value.set_jobject(o); } 94 LIR_Const(void* p) { 95 #ifdef _LP64 96 assert(sizeof(jlong) >= sizeof(p), "too small");; 97 _value.set_type(T_LONG); _value.set_jlong((jlong)p); 98 #else 99 assert(sizeof(jint) >= sizeof(p), "too small");; 100 _value.set_type(T_INT); _value.set_jint((jint)p); 101 #endif 102 } 103 LIR_Const(Metadata* m) { 104 _value.set_type(T_METADATA); 105 #ifdef _LP64 106 _value.set_jlong((jlong)m); 107 #else 108 _value.set_jint((jint)m); 109 #endif // _LP64 110 } 111 112 virtual BasicType type() const { return _value.get_type(); } 113 virtual LIR_Const* as_constant() { return this; } 114 115 jint as_jint() const { type_check(T_INT, T_ADDRESS); return _value.get_jint(); } 116 jlong as_jlong() const { type_check(T_LONG ); return _value.get_jlong(); } 117 jfloat as_jfloat() const { type_check(T_FLOAT ); return _value.get_jfloat(); } 118 jdouble as_jdouble() const { type_check(T_DOUBLE); return _value.get_jdouble(); } 119 jobject as_jobject() const { type_check(T_OBJECT); return _value.get_jobject(); } 120 jint as_jint_lo() const { type_check(T_LONG ); return low(_value.get_jlong()); } 121 jint as_jint_hi() const { type_check(T_LONG ); return high(_value.get_jlong()); } 122 123 #ifdef _LP64 124 address as_pointer() const { type_check(T_LONG ); return (address)_value.get_jlong(); } 125 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jlong(); } 126 #else 127 address as_pointer() const { type_check(T_INT ); return (address)_value.get_jint(); } 128 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jint(); } 129 #endif 130 131 132 jint as_jint_bits() const { type_check(T_FLOAT, T_INT, T_ADDRESS); return _value.get_jint(); } 133 jint as_jint_lo_bits() const { 134 if (type() == T_DOUBLE) { 135 return low(jlong_cast(_value.get_jdouble())); 136 } else { 137 return as_jint_lo(); 138 } 139 } 140 jint as_jint_hi_bits() const { 141 if (type() == T_DOUBLE) { 142 return high(jlong_cast(_value.get_jdouble())); 143 } else { 144 return as_jint_hi(); 145 } 146 } 147 jlong as_jlong_bits() const { 148 if (type() == T_DOUBLE) { 149 return jlong_cast(_value.get_jdouble()); 150 } else { 151 return as_jlong(); 152 } 153 } 154 155 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN; 156 157 158 bool is_zero_float() { 159 jfloat f = as_jfloat(); 160 jfloat ok = 0.0f; 161 return jint_cast(f) == jint_cast(ok); 162 } 163 164 bool is_one_float() { 165 jfloat f = as_jfloat(); 166 return !g_isnan(f) && g_isfinite(f) && f == 1.0; 167 } 168 169 bool is_zero_double() { 170 jdouble d = as_jdouble(); 171 jdouble ok = 0.0; 172 return jlong_cast(d) == jlong_cast(ok); 173 } 174 175 bool is_one_double() { 176 jdouble d = as_jdouble(); 177 return !g_isnan(d) && g_isfinite(d) && d == 1.0; 178 } 179 }; 180 181 182 //---------------------LIR Operand descriptor------------------------------------ 183 // 184 // The class LIR_Opr represents a LIR instruction operand; 185 // it can be a register (ALU/FPU), stack location or a constant; 186 // Constants and addresses are represented as resource area allocated 187 // structures (see above), and pointers are stored in the _value field (cast to 188 // an intptr_t). 189 // Registers and stack locations are represented inline as integers. 190 // (see value function). 191 192 // Previously, this class was derived from CompilationResourceObj. 193 // However, deriving from any of the "Obj" types in allocation.hpp seems 194 // detrimental, since in some build modes it would add a vtable to this class, 195 // which make it no longer be a 1-word trivially-copyable wrapper object, 196 // which is the entire point of it. 197 198 class LIR_Opr { 199 public: 200 // value structure: 201 // data other-non-data opr-type opr-kind 202 // +-------------------+--------------+-------+-----+ 203 // [max...............................|6 5 4 3|2 1 0] 204 // ^ 205 // is_pointer bit 206 // 207 // lowest bit cleared, means it is a structure pointer 208 // we need 4 bits to represent types 209 210 private: 211 friend class LIR_OprFact; 212 213 intptr_t _value; 214 // Conversion 215 intptr_t value() const { return _value; } 216 217 bool check_value_mask(intptr_t mask, intptr_t masked_value) const { 218 return (value() & mask) == masked_value; 219 } 220 221 enum OprKind { 222 pointer_value = 0 223 , stack_value = 1 224 , cpu_register = 3 225 , fpu_register = 5 226 , illegal_value = 7 227 }; 228 229 enum OprBits { 230 pointer_bits = 1 231 , kind_bits = 3 232 , type_bits = 4 233 , size_bits = 2 234 , destroys_bits = 1 235 , virtual_bits = 1 236 , is_xmm_bits = 1 237 , last_use_bits = 1 238 , non_data_bits = kind_bits + type_bits + size_bits + destroys_bits + virtual_bits 239 + is_xmm_bits + last_use_bits 240 , data_bits = BitsPerInt - non_data_bits 241 , reg_bits = data_bits / 2 // for two registers in one value encoding 242 }; 243 244 enum OprShift : uintptr_t { 245 kind_shift = 0 246 , type_shift = kind_shift + kind_bits 247 , size_shift = type_shift + type_bits 248 , destroys_shift = size_shift + size_bits 249 , last_use_shift = destroys_shift + destroys_bits 250 , virtual_shift = last_use_shift + last_use_bits 251 , is_xmm_shift = virtual_shift + virtual_bits 252 , data_shift = is_xmm_shift + is_xmm_bits 253 , reg1_shift = data_shift 254 , reg2_shift = data_shift + reg_bits 255 256 }; 257 258 enum OprSize { 259 single_size = 0 << size_shift 260 , double_size = 1 << size_shift 261 }; 262 263 enum OprMask { 264 kind_mask = right_n_bits(kind_bits) 265 , type_mask = right_n_bits(type_bits) << type_shift 266 , size_mask = right_n_bits(size_bits) << size_shift 267 , last_use_mask = right_n_bits(last_use_bits) << last_use_shift 268 , virtual_mask = right_n_bits(virtual_bits) << virtual_shift 269 , is_xmm_mask = right_n_bits(is_xmm_bits) << is_xmm_shift 270 , pointer_mask = right_n_bits(pointer_bits) 271 , lower_reg_mask = right_n_bits(reg_bits) 272 , no_type_mask = (int)(~(type_mask | last_use_mask)) 273 }; 274 275 uint32_t data() const { return (uint32_t)value() >> data_shift; } 276 int lo_reg_half() const { return data() & lower_reg_mask; } 277 int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; } 278 OprKind kind_field() const { return (OprKind)(value() & kind_mask); } 279 OprSize size_field() const { return (OprSize)(value() & size_mask); } 280 281 static char type_char(BasicType t); 282 283 public: 284 LIR_Opr() : _value(0) {} 285 LIR_Opr(intptr_t val) : _value(val) {} 286 LIR_Opr(LIR_OprPtr *val) : _value(reinterpret_cast<intptr_t>(val)) {} 287 bool operator==(const LIR_Opr &other) const { return _value == other._value; } 288 bool operator!=(const LIR_Opr &other) const { return _value != other._value; } 289 explicit operator bool() const { return _value != 0; } 290 291 // UGLY HACK: make this value object look like a pointer (to itself). This 292 // operator overload should be removed, and all callers updated from 293 // `opr->fn()` to `opr.fn()`. 294 const LIR_Opr* operator->() const { return this; } 295 LIR_Opr* operator->() { return this; } 296 297 enum { 298 vreg_base = ConcreteRegisterImpl::number_of_registers, 299 data_max = (1 << data_bits) - 1, // max unsigned value for data bit field 300 vreg_limit = 10000, // choose a reasonable limit, 301 vreg_max = MIN2(vreg_limit, data_max) // and make sure if fits in the bit field 302 }; 303 304 static inline LIR_Opr illegalOpr(); 305 static inline LIR_Opr nullOpr(); 306 307 enum OprType { 308 unknown_type = 0 << type_shift // means: not set (catch uninitialized types) 309 , int_type = 1 << type_shift 310 , long_type = 2 << type_shift 311 , object_type = 3 << type_shift 312 , address_type = 4 << type_shift 313 , float_type = 5 << type_shift 314 , double_type = 6 << type_shift 315 , metadata_type = 7 << type_shift 316 }; 317 friend OprType as_OprType(BasicType t); 318 friend BasicType as_BasicType(OprType t); 319 320 OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); } 321 OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); } 322 323 static OprSize size_for(BasicType t) { 324 switch (t) { 325 case T_LONG: 326 case T_DOUBLE: 327 return double_size; 328 break; 329 330 case T_FLOAT: 331 case T_BOOLEAN: 332 case T_CHAR: 333 case T_BYTE: 334 case T_SHORT: 335 case T_INT: 336 case T_ADDRESS: 337 case T_OBJECT: 338 case T_ARRAY: 339 case T_METADATA: 340 return single_size; 341 break; 342 343 default: 344 ShouldNotReachHere(); 345 return single_size; 346 } 347 } 348 349 350 void validate_type() const PRODUCT_RETURN; 351 352 BasicType type() const { 353 if (is_pointer()) { 354 return pointer()->type(); 355 } 356 return as_BasicType(type_field()); 357 } 358 359 360 ValueType* value_type() const { return as_ValueType(type()); } 361 362 char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); } 363 364 bool is_equal(LIR_Opr opr) const { return *this == opr; } 365 // checks whether types are same 366 bool is_same_type(LIR_Opr opr) const { 367 assert(type_field() != unknown_type && 368 opr->type_field() != unknown_type, "shouldn't see unknown_type"); 369 return type_field() == opr->type_field(); 370 } 371 bool is_same_register(LIR_Opr opr) { 372 return (is_register() && opr->is_register() && 373 kind_field() == opr->kind_field() && 374 (value() & no_type_mask) == (opr->value() & no_type_mask)); 375 } 376 377 bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); } 378 bool is_illegal() const { return kind_field() == illegal_value; } 379 bool is_valid() const { return kind_field() != illegal_value; } 380 381 bool is_register() const { return is_cpu_register() || is_fpu_register(); } 382 bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); } 383 384 bool is_constant() const { return is_pointer() && pointer()->as_constant() != nullptr; } 385 bool is_address() const { return is_pointer() && pointer()->as_address() != nullptr; } 386 387 bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); } 388 bool is_oop() const; 389 390 // semantic for fpu- and xmm-registers: 391 // * is_float and is_double return true for xmm_registers 392 // (so is_single_fpu and is_single_xmm are true) 393 // * So you must always check for is_???_xmm prior to is_???_fpu to 394 // distinguish between fpu- and xmm-registers 395 396 bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); } 397 bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); } 398 bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); } 399 400 bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); } 401 bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); } 402 bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); } 403 bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); } 404 bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); } 405 406 bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); } 407 bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); } 408 bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); } 409 bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); } 410 bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); } 411 412 bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); } 413 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); } 414 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); } 415 416 // fast accessor functions for special bits that do not work for pointers 417 // (in this functions, the check for is_pointer() is omitted) 418 bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); } 419 bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); } 420 bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); } 421 bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; } 422 BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); } 423 424 bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; } 425 LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); } 426 427 428 int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); } 429 int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); } 430 RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); } 431 RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); } 432 RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); } 433 RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); } 434 RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); } 435 RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); } 436 RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); } 437 RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); } 438 RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); } 439 int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); } 440 441 LIR_OprPtr* pointer() const { assert(_value != 0 && is_pointer(), "nullness and type check"); return (LIR_OprPtr*)_value; } 442 LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); } 443 LIR_Address* as_address_ptr() const { return pointer()->as_address(); } 444 445 Register as_register() const; 446 Register as_register_lo() const; 447 Register as_register_hi() const; 448 449 Register as_pointer_register() { 450 #ifdef _LP64 451 if (is_double_cpu()) { 452 assert(as_register_lo() == as_register_hi(), "should be a single register"); 453 return as_register_lo(); 454 } 455 #endif 456 return as_register(); 457 } 458 459 FloatRegister as_float_reg () const; 460 FloatRegister as_double_reg () const; 461 #ifdef X86 462 XMMRegister as_xmm_float_reg () const; 463 XMMRegister as_xmm_double_reg() const; 464 // for compatibility with RInfo 465 int fpu() const { return lo_reg_half(); } 466 #endif 467 468 jint as_jint() const { return as_constant_ptr()->as_jint(); } 469 jlong as_jlong() const { return as_constant_ptr()->as_jlong(); } 470 jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); } 471 jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); } 472 jobject as_jobject() const { return as_constant_ptr()->as_jobject(); } 473 474 void print() const PRODUCT_RETURN; 475 void print(outputStream* out) const PRODUCT_RETURN; 476 }; 477 478 inline LIR_Opr::OprType as_OprType(BasicType type) { 479 switch (type) { 480 case T_INT: return LIR_Opr::int_type; 481 case T_LONG: return LIR_Opr::long_type; 482 case T_FLOAT: return LIR_Opr::float_type; 483 case T_DOUBLE: return LIR_Opr::double_type; 484 case T_OBJECT: 485 case T_ARRAY: return LIR_Opr::object_type; 486 case T_ADDRESS: return LIR_Opr::address_type; 487 case T_METADATA: return LIR_Opr::metadata_type; 488 case T_ILLEGAL: // fall through 489 default: ShouldNotReachHere(); return LIR_Opr::unknown_type; 490 } 491 } 492 493 inline BasicType as_BasicType(LIR_Opr::OprType t) { 494 switch (t) { 495 case LIR_Opr::int_type: return T_INT; 496 case LIR_Opr::long_type: return T_LONG; 497 case LIR_Opr::float_type: return T_FLOAT; 498 case LIR_Opr::double_type: return T_DOUBLE; 499 case LIR_Opr::object_type: return T_OBJECT; 500 case LIR_Opr::address_type: return T_ADDRESS; 501 case LIR_Opr::metadata_type:return T_METADATA; 502 case LIR_Opr::unknown_type: // fall through 503 default: ShouldNotReachHere(); return T_ILLEGAL; 504 } 505 } 506 507 508 // LIR_Address 509 class LIR_Address: public LIR_OprPtr { 510 friend class LIR_OpVisitState; 511 512 public: 513 // NOTE: currently these must be the log2 of the scale factor (and 514 // must also be equivalent to the ScaleFactor enum in 515 // assembler_i486.hpp) 516 enum Scale { 517 times_1 = 0, 518 times_2 = 1, 519 times_4 = 2, 520 times_8 = 3 521 }; 522 523 private: 524 LIR_Opr _base; 525 LIR_Opr _index; 526 intx _disp; 527 Scale _scale; 528 BasicType _type; 529 530 public: 531 LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type): 532 _base(base) 533 , _index(index) 534 , _disp(0) 535 , _scale(times_1) 536 , _type(type) { verify(); } 537 538 LIR_Address(LIR_Opr base, intx disp, BasicType type): 539 _base(base) 540 , _index(LIR_Opr::illegalOpr()) 541 , _disp(disp) 542 , _scale(times_1) 543 , _type(type) { verify(); } 544 545 LIR_Address(LIR_Opr base, BasicType type): 546 _base(base) 547 , _index(LIR_Opr::illegalOpr()) 548 , _disp(0) 549 , _scale(times_1) 550 , _type(type) { verify(); } 551 552 LIR_Address(LIR_Opr base, LIR_Opr index, intx disp, BasicType type): 553 _base(base) 554 , _index(index) 555 , _disp(disp) 556 , _scale(times_1) 557 , _type(type) { verify(); } 558 559 LIR_Address(LIR_Opr base, LIR_Opr index, Scale scale, intx disp, BasicType type): 560 _base(base) 561 , _index(index) 562 , _disp(disp) 563 , _scale(scale) 564 , _type(type) { verify(); } 565 566 LIR_Opr base() const { return _base; } 567 LIR_Opr index() const { return _index; } 568 Scale scale() const { return _scale; } 569 intx disp() const { return _disp; } 570 571 bool equals(LIR_Address* other) const { return base() == other->base() && index() == other->index() && disp() == other->disp() && scale() == other->scale(); } 572 573 virtual LIR_Address* as_address() { return this; } 574 virtual BasicType type() const { return _type; } 575 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN; 576 577 void verify() const PRODUCT_RETURN; 578 579 static Scale scale(BasicType type); 580 }; 581 582 583 // operand factory 584 class LIR_OprFact: public AllStatic { 585 public: 586 587 static LIR_Opr illegalOpr; 588 static LIR_Opr nullOpr; 589 590 static LIR_Opr single_cpu(int reg) { 591 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) | 592 LIR_Opr::int_type | 593 LIR_Opr::cpu_register | 594 LIR_Opr::single_size); 595 } 596 static LIR_Opr single_cpu_oop(int reg) { 597 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) | 598 LIR_Opr::object_type | 599 LIR_Opr::cpu_register | 600 LIR_Opr::single_size); 601 } 602 static LIR_Opr single_cpu_address(int reg) { 603 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) | 604 LIR_Opr::address_type | 605 LIR_Opr::cpu_register | 606 LIR_Opr::single_size); 607 } 608 static LIR_Opr single_cpu_metadata(int reg) { 609 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) | 610 LIR_Opr::metadata_type | 611 LIR_Opr::cpu_register | 612 LIR_Opr::single_size); 613 } 614 static LIR_Opr double_cpu(int reg1, int reg2) { 615 LP64_ONLY(assert(reg1 == reg2, "must be identical")); 616 return (LIR_Opr)(intptr_t)((reg1 << LIR_Opr::reg1_shift) | 617 (reg2 << LIR_Opr::reg2_shift) | 618 LIR_Opr::long_type | 619 LIR_Opr::cpu_register | 620 LIR_Opr::double_size); 621 } 622 623 static LIR_Opr single_fpu(int reg) { 624 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) | 625 LIR_Opr::float_type | 626 LIR_Opr::fpu_register | 627 LIR_Opr::single_size); 628 } 629 630 // Platform dependent. 631 static LIR_Opr double_fpu(int reg1, int reg2 = -1 /*fnoreg*/); 632 633 #ifdef ARM32 634 static LIR_Opr single_softfp(int reg) { 635 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) | 636 LIR_Opr::float_type | 637 LIR_Opr::cpu_register | 638 LIR_Opr::single_size); 639 } 640 static LIR_Opr double_softfp(int reg1, int reg2) { 641 return (LIR_Opr)(intptr_t)((reg1 << LIR_Opr::reg1_shift) | 642 (reg2 << LIR_Opr::reg2_shift) | 643 LIR_Opr::double_type | 644 LIR_Opr::cpu_register | 645 LIR_Opr::double_size); 646 } 647 #endif // ARM32 648 649 #if defined(X86) 650 static LIR_Opr single_xmm(int reg) { 651 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) | 652 LIR_Opr::float_type | 653 LIR_Opr::fpu_register | 654 LIR_Opr::single_size | 655 LIR_Opr::is_xmm_mask); 656 } 657 static LIR_Opr double_xmm(int reg) { 658 return (LIR_Opr)(intptr_t)((reg << LIR_Opr::reg1_shift) | 659 (reg << LIR_Opr::reg2_shift) | 660 LIR_Opr::double_type | 661 LIR_Opr::fpu_register | 662 LIR_Opr::double_size | 663 LIR_Opr::is_xmm_mask); 664 } 665 #endif // X86 666 667 static LIR_Opr virtual_register(int index, BasicType type) { 668 if (index > LIR_Opr::vreg_max) { 669 // Running out of virtual registers. Caller should bailout. 670 return illegalOpr; 671 } 672 673 LIR_Opr res; 674 switch (type) { 675 case T_OBJECT: // fall through 676 case T_ARRAY: 677 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 678 LIR_Opr::object_type | 679 LIR_Opr::cpu_register | 680 LIR_Opr::single_size | 681 LIR_Opr::virtual_mask); 682 break; 683 684 case T_METADATA: 685 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 686 LIR_Opr::metadata_type| 687 LIR_Opr::cpu_register | 688 LIR_Opr::single_size | 689 LIR_Opr::virtual_mask); 690 break; 691 692 case T_INT: 693 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 694 LIR_Opr::int_type | 695 LIR_Opr::cpu_register | 696 LIR_Opr::single_size | 697 LIR_Opr::virtual_mask); 698 break; 699 700 case T_ADDRESS: 701 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 702 LIR_Opr::address_type | 703 LIR_Opr::cpu_register | 704 LIR_Opr::single_size | 705 LIR_Opr::virtual_mask); 706 break; 707 708 case T_LONG: 709 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 710 LIR_Opr::long_type | 711 LIR_Opr::cpu_register | 712 LIR_Opr::double_size | 713 LIR_Opr::virtual_mask); 714 break; 715 716 #ifdef __SOFTFP__ 717 case T_FLOAT: 718 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 719 LIR_Opr::float_type | 720 LIR_Opr::cpu_register | 721 LIR_Opr::single_size | 722 LIR_Opr::virtual_mask); 723 break; 724 case T_DOUBLE: 725 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 726 LIR_Opr::double_type | 727 LIR_Opr::cpu_register | 728 LIR_Opr::double_size | 729 LIR_Opr::virtual_mask); 730 break; 731 #else // __SOFTFP__ 732 case T_FLOAT: 733 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 734 LIR_Opr::float_type | 735 LIR_Opr::fpu_register | 736 LIR_Opr::single_size | 737 LIR_Opr::virtual_mask); 738 break; 739 740 case 741 T_DOUBLE: res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 742 LIR_Opr::double_type | 743 LIR_Opr::fpu_register | 744 LIR_Opr::double_size | 745 LIR_Opr::virtual_mask); 746 break; 747 #endif // __SOFTFP__ 748 default: ShouldNotReachHere(); res = illegalOpr; 749 } 750 751 #ifdef ASSERT 752 res->validate_type(); 753 assert(res->vreg_number() == index, "conversion check"); 754 assert(index >= LIR_Opr::vreg_base, "must start at vreg_base"); 755 756 // old-style calculation; check if old and new method are equal 757 LIR_Opr::OprType t = as_OprType(type); 758 #ifdef __SOFTFP__ 759 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 760 t | 761 LIR_Opr::cpu_register | 762 LIR_Opr::size_for(type) | LIR_Opr::virtual_mask); 763 #else // __SOFTFP__ 764 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | t | 765 ((type == T_FLOAT || type == T_DOUBLE) ? LIR_Opr::fpu_register : LIR_Opr::cpu_register) | 766 LIR_Opr::size_for(type) | LIR_Opr::virtual_mask); 767 assert(res == old_res, "old and new method not equal"); 768 #endif // __SOFTFP__ 769 #endif // ASSERT 770 771 return res; 772 } 773 774 // 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as 775 // the index is platform independent; a double stack using indices 2 and 3 has always 776 // index 2. 777 static LIR_Opr stack(int index, BasicType type) { 778 LIR_Opr res; 779 switch (type) { 780 case T_OBJECT: // fall through 781 case T_ARRAY: 782 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 783 LIR_Opr::object_type | 784 LIR_Opr::stack_value | 785 LIR_Opr::single_size); 786 break; 787 788 case T_METADATA: 789 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 790 LIR_Opr::metadata_type | 791 LIR_Opr::stack_value | 792 LIR_Opr::single_size); 793 break; 794 case T_INT: 795 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 796 LIR_Opr::int_type | 797 LIR_Opr::stack_value | 798 LIR_Opr::single_size); 799 break; 800 801 case T_ADDRESS: 802 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 803 LIR_Opr::address_type | 804 LIR_Opr::stack_value | 805 LIR_Opr::single_size); 806 break; 807 808 case T_LONG: 809 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 810 LIR_Opr::long_type | 811 LIR_Opr::stack_value | 812 LIR_Opr::double_size); 813 break; 814 815 case T_FLOAT: 816 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 817 LIR_Opr::float_type | 818 LIR_Opr::stack_value | 819 LIR_Opr::single_size); 820 break; 821 case T_DOUBLE: 822 res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 823 LIR_Opr::double_type | 824 LIR_Opr::stack_value | 825 LIR_Opr::double_size); 826 break; 827 828 default: ShouldNotReachHere(); res = illegalOpr; 829 } 830 831 #ifdef ASSERT 832 assert(index >= 0, "index must be positive"); 833 assert(index == (int)res->data(), "conversion check"); 834 835 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_Opr::data_shift) | 836 LIR_Opr::stack_value | 837 as_OprType(type) | 838 LIR_Opr::size_for(type)); 839 assert(res == old_res, "old and new method not equal"); 840 #endif 841 842 return res; 843 } 844 845 static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); } 846 static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); } 847 static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); } 848 static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); } 849 static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); } 850 static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; } 851 static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); } 852 static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); } 853 static LIR_Opr illegal() { return (LIR_Opr)-1; } 854 static LIR_Opr addressConst(jint i) { return (LIR_Opr)(new LIR_Const(i, true)); } 855 static LIR_Opr metadataConst(Metadata* m) { return (LIR_Opr)(new LIR_Const(m)); } 856 857 static LIR_Opr value_type(ValueType* type); 858 }; 859 860 861 //------------------------------------------------------------------------------- 862 // LIR Instructions 863 //------------------------------------------------------------------------------- 864 // 865 // Note: 866 // - every instruction has a result operand 867 // - every instruction has an CodeEmitInfo operand (can be revisited later) 868 // - every instruction has a LIR_OpCode operand 869 // - LIR_OpN, means an instruction that has N input operands 870 // 871 // class hierarchy: 872 // 873 class LIR_Op; 874 class LIR_Op0; 875 class LIR_OpLabel; 876 class LIR_Op1; 877 class LIR_OpBranch; 878 class LIR_OpConvert; 879 class LIR_OpAllocObj; 880 class LIR_OpReturn; 881 class LIR_Op2; 882 class LIR_Op3; 883 class LIR_OpAllocArray; 884 class LIR_Op4; 885 class LIR_OpCall; 886 class LIR_OpJavaCall; 887 class LIR_OpRTCall; 888 class LIR_OpArrayCopy; 889 class LIR_OpUpdateCRC32; 890 class LIR_OpLock; 891 class LIR_OpTypeCheck; 892 class LIR_OpFlattenedArrayCheck; 893 class LIR_OpNullFreeArrayCheck; 894 class LIR_OpSubstitutabilityCheck; 895 class LIR_OpCompareAndSwap; 896 class LIR_OpLoadKlass; 897 class LIR_OpProfileCall; 898 class LIR_OpProfileType; 899 class LIR_OpProfileInlineType; 900 #ifdef ASSERT 901 class LIR_OpAssert; 902 #endif 903 904 // LIR operation codes 905 enum LIR_Code { 906 lir_none 907 , begin_op0 908 , lir_label 909 , lir_nop 910 , lir_std_entry 911 , lir_osr_entry 912 , lir_breakpoint 913 , lir_rtcall 914 , lir_membar 915 , lir_membar_acquire 916 , lir_membar_release 917 , lir_membar_loadload 918 , lir_membar_storestore 919 , lir_membar_loadstore 920 , lir_membar_storeload 921 , lir_get_thread 922 , lir_on_spin_wait 923 , lir_check_orig_pc 924 , end_op0 925 , begin_op1 926 , lir_push 927 , lir_pop 928 , lir_null_check 929 , lir_return 930 , lir_leal 931 , lir_move 932 , lir_convert 933 , lir_alloc_object 934 , lir_monaddr 935 , lir_sqrt 936 , lir_abs 937 , lir_neg 938 , lir_f2hf 939 , lir_hf2f 940 , lir_safepoint 941 , lir_unwind 942 , lir_load_klass 943 , end_op1 944 , begin_op2 945 , lir_branch 946 , lir_cond_float_branch 947 , lir_cmp 948 , lir_cmp_l2i 949 , lir_ucmp_fd2i 950 , lir_cmp_fd2i 951 , lir_add 952 , lir_sub 953 , lir_mul 954 , lir_div 955 , lir_rem 956 , lir_logic_and 957 , lir_logic_or 958 , lir_logic_xor 959 , lir_shl 960 , lir_shr 961 , lir_ushr 962 , lir_alloc_array 963 , lir_throw 964 , lir_xadd 965 , lir_xchg 966 , end_op2 967 , begin_op3 968 , lir_idiv 969 , lir_irem 970 , lir_fmad 971 , lir_fmaf 972 , end_op3 973 , begin_op4 974 , lir_cmove 975 , end_op4 976 , begin_opJavaCall 977 , lir_static_call 978 , lir_optvirtual_call 979 , lir_icvirtual_call 980 , lir_dynamic_call 981 , end_opJavaCall 982 , begin_opArrayCopy 983 , lir_arraycopy 984 , end_opArrayCopy 985 , begin_opUpdateCRC32 986 , lir_updatecrc32 987 , end_opUpdateCRC32 988 , begin_opLock 989 , lir_lock 990 , lir_unlock 991 , end_opLock 992 , begin_opTypeCheck 993 , lir_instanceof 994 , lir_checkcast 995 , lir_store_check 996 , end_opTypeCheck 997 , begin_opFlattenedArrayCheck 998 , lir_flat_array_check 999 , end_opFlattenedArrayCheck 1000 , begin_opNullFreeArrayCheck 1001 , lir_null_free_array_check 1002 , end_opNullFreeArrayCheck 1003 , begin_opSubstitutabilityCheck 1004 , lir_substitutability_check 1005 , end_opSubstitutabilityCheck 1006 , begin_opCompareAndSwap 1007 , lir_cas_long 1008 , lir_cas_obj 1009 , lir_cas_int 1010 , end_opCompareAndSwap 1011 , begin_opMDOProfile 1012 , lir_profile_call 1013 , lir_profile_type 1014 , lir_profile_inline_type 1015 , end_opMDOProfile 1016 , begin_opAssert 1017 , lir_assert 1018 , end_opAssert 1019 #if INCLUDE_ZGC 1020 , begin_opXLoadBarrierTest 1021 , lir_xloadbarrier_test 1022 , end_opXLoadBarrierTest 1023 #endif 1024 }; 1025 1026 1027 enum LIR_Condition { 1028 lir_cond_equal 1029 , lir_cond_notEqual 1030 , lir_cond_less 1031 , lir_cond_lessEqual 1032 , lir_cond_greaterEqual 1033 , lir_cond_greater 1034 , lir_cond_belowEqual 1035 , lir_cond_aboveEqual 1036 , lir_cond_always 1037 , lir_cond_unknown = -1 1038 }; 1039 1040 1041 enum LIR_PatchCode { 1042 lir_patch_none, 1043 lir_patch_low, 1044 lir_patch_high, 1045 lir_patch_normal 1046 }; 1047 1048 1049 enum LIR_MoveKind { 1050 lir_move_normal, 1051 lir_move_volatile, 1052 lir_move_wide, 1053 lir_move_max_flag 1054 }; 1055 1056 1057 // -------------------------------------------------- 1058 // LIR_Op 1059 // -------------------------------------------------- 1060 class LIR_Op: public CompilationResourceObj { 1061 friend class LIR_OpVisitState; 1062 1063 #ifdef ASSERT 1064 private: 1065 const char * _file; 1066 int _line; 1067 #endif 1068 1069 protected: 1070 LIR_Opr _result; 1071 unsigned short _code; 1072 unsigned short _flags; 1073 CodeEmitInfo* _info; 1074 int _id; // value id for register allocation 1075 Instruction* _source; // for debugging 1076 1077 static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN; 1078 1079 protected: 1080 static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; } 1081 1082 public: 1083 LIR_Op() 1084 : 1085 #ifdef ASSERT 1086 _file(nullptr) 1087 , _line(0), 1088 #endif 1089 _result(LIR_OprFact::illegalOpr) 1090 , _code(lir_none) 1091 , _flags(0) 1092 , _info(nullptr) 1093 , _id(-1) 1094 , _source(nullptr) {} 1095 1096 LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info) 1097 : 1098 #ifdef ASSERT 1099 _file(nullptr) 1100 , _line(0), 1101 #endif 1102 _result(result) 1103 , _code(code) 1104 , _flags(0) 1105 , _info(info) 1106 , _id(-1) 1107 , _source(nullptr) {} 1108 1109 CodeEmitInfo* info() const { return _info; } 1110 LIR_Code code() const { return (LIR_Code)_code; } 1111 LIR_Opr result_opr() const { return _result; } 1112 void set_result_opr(LIR_Opr opr) { _result = opr; } 1113 1114 #ifdef ASSERT 1115 void set_file_and_line(const char * file, int line) { 1116 _file = file; 1117 _line = line; 1118 } 1119 #endif 1120 1121 virtual const char * name() const PRODUCT_RETURN_NULL; 1122 virtual void visit(LIR_OpVisitState* state); 1123 1124 int id() const { return _id; } 1125 void set_id(int id) { _id = id; } 1126 1127 Instruction* source() const { return _source; } 1128 void set_source(Instruction* ins) { _source = ins; } 1129 1130 virtual void emit_code(LIR_Assembler* masm) = 0; 1131 virtual void print_instr(outputStream* out) const = 0; 1132 virtual void print_on(outputStream* st) const PRODUCT_RETURN; 1133 1134 virtual bool is_patching() { return false; } 1135 virtual LIR_OpCall* as_OpCall() { return nullptr; } 1136 virtual LIR_OpJavaCall* as_OpJavaCall() { return nullptr; } 1137 virtual LIR_OpLabel* as_OpLabel() { return nullptr; } 1138 virtual LIR_OpLock* as_OpLock() { return nullptr; } 1139 virtual LIR_OpAllocArray* as_OpAllocArray() { return nullptr; } 1140 virtual LIR_OpAllocObj* as_OpAllocObj() { return nullptr; } 1141 virtual LIR_OpBranch* as_OpBranch() { return nullptr; } 1142 virtual LIR_OpReturn* as_OpReturn() { return nullptr; } 1143 virtual LIR_OpRTCall* as_OpRTCall() { return nullptr; } 1144 virtual LIR_OpConvert* as_OpConvert() { return nullptr; } 1145 virtual LIR_Op0* as_Op0() { return nullptr; } 1146 virtual LIR_Op1* as_Op1() { return nullptr; } 1147 virtual LIR_Op2* as_Op2() { return nullptr; } 1148 virtual LIR_Op3* as_Op3() { return nullptr; } 1149 virtual LIR_Op4* as_Op4() { return nullptr; } 1150 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return nullptr; } 1151 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return nullptr; } 1152 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return nullptr; } 1153 virtual LIR_OpFlattenedArrayCheck* as_OpFlattenedArrayCheck() { return nullptr; } 1154 virtual LIR_OpNullFreeArrayCheck* as_OpNullFreeArrayCheck() { return nullptr; } 1155 virtual LIR_OpSubstitutabilityCheck* as_OpSubstitutabilityCheck() { return nullptr; } 1156 virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return nullptr; } 1157 virtual LIR_OpLoadKlass* as_OpLoadKlass() { return nullptr; } 1158 virtual LIR_OpProfileCall* as_OpProfileCall() { return nullptr; } 1159 virtual LIR_OpProfileType* as_OpProfileType() { return nullptr; } 1160 virtual LIR_OpProfileInlineType* as_OpProfileInlineType() { return nullptr; } 1161 #ifdef ASSERT 1162 virtual LIR_OpAssert* as_OpAssert() { return nullptr; } 1163 #endif 1164 1165 virtual void verify() const {} 1166 }; 1167 1168 // for calls 1169 class LIR_OpCall: public LIR_Op { 1170 friend class LIR_OpVisitState; 1171 1172 protected: 1173 address _addr; 1174 LIR_OprList* _arguments; 1175 protected: 1176 LIR_OpCall(LIR_Code code, address addr, LIR_Opr result, 1177 LIR_OprList* arguments, CodeEmitInfo* info = nullptr) 1178 : LIR_Op(code, result, info) 1179 , _addr(addr) 1180 , _arguments(arguments) {} 1181 1182 public: 1183 address addr() const { return _addr; } 1184 const LIR_OprList* arguments() const { return _arguments; } 1185 virtual LIR_OpCall* as_OpCall() { return this; } 1186 }; 1187 1188 1189 // -------------------------------------------------- 1190 // LIR_OpJavaCall 1191 // -------------------------------------------------- 1192 class LIR_OpJavaCall: public LIR_OpCall { 1193 friend class LIR_OpVisitState; 1194 1195 private: 1196 ciMethod* _method; 1197 LIR_Opr _receiver; 1198 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. 1199 1200 public: 1201 LIR_OpJavaCall(LIR_Code code, ciMethod* method, 1202 LIR_Opr receiver, LIR_Opr result, 1203 address addr, LIR_OprList* arguments, 1204 CodeEmitInfo* info) 1205 : LIR_OpCall(code, addr, result, arguments, info) 1206 , _method(method) 1207 , _receiver(receiver) 1208 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr) 1209 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); } 1210 1211 LIR_OpJavaCall(LIR_Code code, ciMethod* method, 1212 LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset, 1213 LIR_OprList* arguments, CodeEmitInfo* info) 1214 : LIR_OpCall(code, (address)vtable_offset, result, arguments, info) 1215 , _method(method) 1216 , _receiver(receiver) 1217 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr) 1218 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); } 1219 1220 LIR_Opr receiver() const { return _receiver; } 1221 ciMethod* method() const { return _method; } 1222 1223 // JSR 292 support. 1224 bool is_invokedynamic() const { return code() == lir_dynamic_call; } 1225 bool is_method_handle_invoke() const { 1226 return method()->is_compiled_lambda_form() || // Java-generated lambda form 1227 method()->is_method_handle_intrinsic(); // JVM-generated MH intrinsic 1228 } 1229 1230 virtual void emit_code(LIR_Assembler* masm); 1231 virtual LIR_OpJavaCall* as_OpJavaCall() { return this; } 1232 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1233 1234 bool maybe_return_as_fields(ciInlineKlass** vk = nullptr) const; 1235 }; 1236 1237 // -------------------------------------------------- 1238 // LIR_OpLabel 1239 // -------------------------------------------------- 1240 // Location where a branch can continue 1241 class LIR_OpLabel: public LIR_Op { 1242 friend class LIR_OpVisitState; 1243 1244 private: 1245 Label* _label; 1246 public: 1247 LIR_OpLabel(Label* lbl) 1248 : LIR_Op(lir_label, LIR_OprFact::illegalOpr, nullptr) 1249 , _label(lbl) {} 1250 Label* label() const { return _label; } 1251 1252 virtual void emit_code(LIR_Assembler* masm); 1253 virtual LIR_OpLabel* as_OpLabel() { return this; } 1254 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1255 }; 1256 1257 // LIR_OpArrayCopy 1258 class LIR_OpArrayCopy: public LIR_Op { 1259 friend class LIR_OpVisitState; 1260 1261 private: 1262 ArrayCopyStub* _stub; 1263 LIR_Opr _src; 1264 LIR_Opr _src_pos; 1265 LIR_Opr _dst; 1266 LIR_Opr _dst_pos; 1267 LIR_Opr _length; 1268 LIR_Opr _tmp; 1269 ciArrayKlass* _expected_type; 1270 int _flags; 1271 1272 public: 1273 enum Flags { 1274 src_null_check = 1 << 0, 1275 dst_null_check = 1 << 1, 1276 src_pos_positive_check = 1 << 2, 1277 dst_pos_positive_check = 1 << 3, 1278 length_positive_check = 1 << 4, 1279 src_range_check = 1 << 5, 1280 dst_range_check = 1 << 6, 1281 type_check = 1 << 7, 1282 overlapping = 1 << 8, 1283 unaligned = 1 << 9, 1284 src_objarray = 1 << 10, 1285 dst_objarray = 1 << 11, 1286 always_slow_path = 1 << 12, 1287 src_inlinetype_check = 1 << 13, 1288 dst_inlinetype_check = 1 << 14, 1289 all_flags = (1 << 15) - 1 1290 }; 1291 1292 LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp, 1293 ciArrayKlass* expected_type, int flags, CodeEmitInfo* info); 1294 1295 LIR_Opr src() const { return _src; } 1296 LIR_Opr src_pos() const { return _src_pos; } 1297 LIR_Opr dst() const { return _dst; } 1298 LIR_Opr dst_pos() const { return _dst_pos; } 1299 LIR_Opr length() const { return _length; } 1300 LIR_Opr tmp() const { return _tmp; } 1301 int flags() const { return _flags; } 1302 ciArrayKlass* expected_type() const { return _expected_type; } 1303 ArrayCopyStub* stub() const { return _stub; } 1304 static int get_initial_copy_flags() { return LIR_OpArrayCopy::unaligned | 1305 LIR_OpArrayCopy::overlapping; } 1306 1307 virtual void emit_code(LIR_Assembler* masm); 1308 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; } 1309 void print_instr(outputStream* out) const PRODUCT_RETURN; 1310 }; 1311 1312 // LIR_OpUpdateCRC32 1313 class LIR_OpUpdateCRC32: public LIR_Op { 1314 friend class LIR_OpVisitState; 1315 1316 private: 1317 LIR_Opr _crc; 1318 LIR_Opr _val; 1319 1320 public: 1321 1322 LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res); 1323 1324 LIR_Opr crc() const { return _crc; } 1325 LIR_Opr val() const { return _val; } 1326 1327 virtual void emit_code(LIR_Assembler* masm); 1328 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return this; } 1329 void print_instr(outputStream* out) const PRODUCT_RETURN; 1330 }; 1331 1332 // -------------------------------------------------- 1333 // LIR_Op0 1334 // -------------------------------------------------- 1335 class LIR_Op0: public LIR_Op { 1336 friend class LIR_OpVisitState; 1337 1338 public: 1339 LIR_Op0(LIR_Code code) 1340 : LIR_Op(code, LIR_OprFact::illegalOpr, nullptr) { assert(is_in_range(code, begin_op0, end_op0), "code check"); } 1341 LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = nullptr) 1342 : LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); } 1343 1344 virtual void emit_code(LIR_Assembler* masm); 1345 virtual LIR_Op0* as_Op0() { return this; } 1346 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1347 }; 1348 1349 1350 // -------------------------------------------------- 1351 // LIR_Op1 1352 // -------------------------------------------------- 1353 1354 class LIR_Op1: public LIR_Op { 1355 friend class LIR_OpVisitState; 1356 1357 protected: 1358 LIR_Opr _opr; // input operand 1359 LIR_Opr _tmp; 1360 BasicType _type; // Operand types 1361 LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?) 1362 1363 static void print_patch_code(outputStream* out, LIR_PatchCode code); 1364 1365 void set_kind(LIR_MoveKind kind) { 1366 assert(code() == lir_move, "must be"); 1367 _flags = kind; 1368 } 1369 1370 public: 1371 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 = nullptr) 1372 : LIR_Op(code, result, info) 1373 , _opr(opr) 1374 , _tmp(LIR_OprFact::illegalOpr) 1375 , _type(type) 1376 , _patch(patch) { assert(is_in_range(code, begin_op1, end_op1), "code check"); } 1377 1378 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, LIR_Opr tmp, BasicType type = T_ILLEGAL, LIR_PatchCode patch = lir_patch_none, CodeEmitInfo* info = nullptr) 1379 : LIR_Op(code, result, info) 1380 , _opr(opr) 1381 , _tmp(tmp) 1382 , _type(type) 1383 , _patch(patch) { assert(is_in_range(code, begin_op1, end_op1), "code check"); } 1384 1385 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind) 1386 : LIR_Op(code, result, info) 1387 , _opr(opr) 1388 , _tmp(LIR_OprFact::illegalOpr) 1389 , _type(type) 1390 , _patch(patch) { 1391 assert(code == lir_move, "must be"); 1392 set_kind(kind); 1393 } 1394 1395 LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info) 1396 : LIR_Op(code, LIR_OprFact::illegalOpr, info) 1397 , _opr(opr) 1398 , _tmp(LIR_OprFact::illegalOpr) 1399 , _type(T_ILLEGAL) 1400 , _patch(lir_patch_none) { assert(is_in_range(code, begin_op1, end_op1), "code check"); } 1401 1402 LIR_Opr in_opr() const { return _opr; } 1403 LIR_Opr tmp_opr() const { return _tmp; } 1404 LIR_PatchCode patch_code() const { return _patch; } 1405 BasicType type() const { return _type; } 1406 1407 LIR_MoveKind move_kind() const { 1408 assert(code() == lir_move, "must be"); 1409 return (LIR_MoveKind)_flags; 1410 } 1411 1412 virtual bool is_patching() { return _patch != lir_patch_none; } 1413 virtual void emit_code(LIR_Assembler* masm); 1414 virtual LIR_Op1* as_Op1() { return this; } 1415 virtual const char * name() const PRODUCT_RETURN_NULL; 1416 1417 void set_in_opr(LIR_Opr opr) { _opr = opr; } 1418 1419 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1420 virtual void verify() const; 1421 }; 1422 1423 1424 // for runtime calls 1425 class LIR_OpRTCall: public LIR_OpCall { 1426 friend class LIR_OpVisitState; 1427 1428 private: 1429 LIR_Opr _tmp; 1430 public: 1431 LIR_OpRTCall(address addr, LIR_Opr tmp, 1432 LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = nullptr) 1433 : LIR_OpCall(lir_rtcall, addr, result, arguments, info) 1434 , _tmp(tmp) {} 1435 1436 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1437 virtual void emit_code(LIR_Assembler* masm); 1438 virtual LIR_OpRTCall* as_OpRTCall() { return this; } 1439 1440 LIR_Opr tmp() const { return _tmp; } 1441 1442 virtual void verify() const; 1443 }; 1444 1445 1446 1447 class LIR_OpReturn: public LIR_Op1 { 1448 friend class LIR_OpVisitState; 1449 1450 private: 1451 C1SafepointPollStub* _stub; 1452 1453 public: 1454 LIR_OpReturn(LIR_Opr opr); 1455 1456 C1SafepointPollStub* stub() const { return _stub; } 1457 virtual LIR_OpReturn* as_OpReturn() { return this; } 1458 }; 1459 1460 class ConversionStub; 1461 1462 class LIR_OpConvert: public LIR_Op1 { 1463 friend class LIR_OpVisitState; 1464 1465 private: 1466 Bytecodes::Code _bytecode; 1467 ConversionStub* _stub; 1468 1469 public: 1470 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub) 1471 : LIR_Op1(lir_convert, opr, result) 1472 , _bytecode(code) 1473 , _stub(stub) {} 1474 1475 Bytecodes::Code bytecode() const { return _bytecode; } 1476 ConversionStub* stub() const { return _stub; } 1477 1478 virtual void emit_code(LIR_Assembler* masm); 1479 virtual LIR_OpConvert* as_OpConvert() { return this; } 1480 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1481 1482 static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN; 1483 }; 1484 1485 1486 // LIR_OpAllocObj 1487 class LIR_OpAllocObj : public LIR_Op1 { 1488 friend class LIR_OpVisitState; 1489 1490 private: 1491 LIR_Opr _tmp1; 1492 LIR_Opr _tmp2; 1493 LIR_Opr _tmp3; 1494 LIR_Opr _tmp4; 1495 int _hdr_size; 1496 int _obj_size; 1497 CodeStub* _stub; 1498 bool _init_check; 1499 1500 public: 1501 LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result, 1502 LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4, 1503 int hdr_size, int obj_size, bool init_check, CodeStub* stub) 1504 : LIR_Op1(lir_alloc_object, klass, result) 1505 , _tmp1(t1) 1506 , _tmp2(t2) 1507 , _tmp3(t3) 1508 , _tmp4(t4) 1509 , _hdr_size(hdr_size) 1510 , _obj_size(obj_size) 1511 , _stub(stub) 1512 , _init_check(init_check) { } 1513 1514 LIR_Opr klass() const { return in_opr(); } 1515 LIR_Opr obj() const { return result_opr(); } 1516 LIR_Opr tmp1() const { return _tmp1; } 1517 LIR_Opr tmp2() const { return _tmp2; } 1518 LIR_Opr tmp3() const { return _tmp3; } 1519 LIR_Opr tmp4() const { return _tmp4; } 1520 int header_size() const { return _hdr_size; } 1521 int object_size() const { return _obj_size; } 1522 bool init_check() const { return _init_check; } 1523 CodeStub* stub() const { return _stub; } 1524 1525 virtual void emit_code(LIR_Assembler* masm); 1526 virtual LIR_OpAllocObj * as_OpAllocObj () { return this; } 1527 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1528 }; 1529 1530 1531 // LIR_OpTypeCheck 1532 class LIR_OpTypeCheck: public LIR_Op { 1533 friend class LIR_OpVisitState; 1534 1535 private: 1536 LIR_Opr _object; 1537 LIR_Opr _array; 1538 ciKlass* _klass; 1539 LIR_Opr _tmp1; 1540 LIR_Opr _tmp2; 1541 LIR_Opr _tmp3; 1542 CodeEmitInfo* _info_for_patch; 1543 CodeEmitInfo* _info_for_exception; 1544 CodeStub* _stub; 1545 ciMethod* _profiled_method; 1546 int _profiled_bci; 1547 bool _should_profile; 1548 bool _fast_check; 1549 bool _need_null_check; 1550 1551 public: 1552 LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass, 1553 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, 1554 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub, bool need_null_check = true); 1555 LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array, 1556 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception); 1557 1558 LIR_Opr object() const { return _object; } 1559 LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; } 1560 LIR_Opr tmp1() const { return _tmp1; } 1561 LIR_Opr tmp2() const { return _tmp2; } 1562 LIR_Opr tmp3() const { return _tmp3; } 1563 ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; } 1564 bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; } 1565 CodeEmitInfo* info_for_patch() const { return _info_for_patch; } 1566 CodeEmitInfo* info_for_exception() const { return _info_for_exception; } 1567 CodeStub* stub() const { return _stub; } 1568 1569 // MethodData* profiling 1570 void set_profiled_method(ciMethod *method) { _profiled_method = method; } 1571 void set_profiled_bci(int bci) { _profiled_bci = bci; } 1572 void set_should_profile(bool b) { _should_profile = b; } 1573 ciMethod* profiled_method() const { return _profiled_method; } 1574 int profiled_bci() const { return _profiled_bci; } 1575 bool should_profile() const { return _should_profile; } 1576 bool need_null_check() const { return _need_null_check; } 1577 virtual bool is_patching() { return _info_for_patch != nullptr; } 1578 virtual void emit_code(LIR_Assembler* masm); 1579 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; } 1580 void print_instr(outputStream* out) const PRODUCT_RETURN; 1581 }; 1582 1583 // LIR_OpFlattenedArrayCheck 1584 class LIR_OpFlattenedArrayCheck: public LIR_Op { 1585 friend class LIR_OpVisitState; 1586 1587 private: 1588 LIR_Opr _array; 1589 LIR_Opr _value; 1590 LIR_Opr _tmp; 1591 CodeStub* _stub; 1592 public: 1593 LIR_OpFlattenedArrayCheck(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub); 1594 LIR_Opr array() const { return _array; } 1595 LIR_Opr value() const { return _value; } 1596 LIR_Opr tmp() const { return _tmp; } 1597 CodeStub* stub() const { return _stub; } 1598 1599 virtual void emit_code(LIR_Assembler* masm); 1600 virtual LIR_OpFlattenedArrayCheck* as_OpFlattenedArrayCheck() { return this; } 1601 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1602 }; 1603 1604 // LIR_OpNullFreeArrayCheck 1605 class LIR_OpNullFreeArrayCheck: public LIR_Op { 1606 friend class LIR_OpVisitState; 1607 1608 private: 1609 LIR_Opr _array; 1610 LIR_Opr _tmp; 1611 public: 1612 LIR_OpNullFreeArrayCheck(LIR_Opr array, LIR_Opr tmp); 1613 LIR_Opr array() const { return _array; } 1614 LIR_Opr tmp() const { return _tmp; } 1615 1616 virtual void emit_code(LIR_Assembler* masm); 1617 virtual LIR_OpNullFreeArrayCheck* as_OpNullFreeArrayCheck() { return this; } 1618 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1619 }; 1620 1621 class LIR_OpSubstitutabilityCheck: public LIR_Op { 1622 friend class LIR_OpVisitState; 1623 1624 private: 1625 LIR_Opr _left; 1626 LIR_Opr _right; 1627 LIR_Opr _equal_result; 1628 LIR_Opr _not_equal_result; 1629 LIR_Opr _tmp1; 1630 LIR_Opr _tmp2; 1631 ciKlass* _left_klass; 1632 ciKlass* _right_klass; 1633 LIR_Opr _left_klass_op; 1634 LIR_Opr _right_klass_op; 1635 CodeStub* _stub; 1636 public: 1637 LIR_OpSubstitutabilityCheck(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result, 1638 LIR_Opr tmp1, LIR_Opr tmp2, 1639 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op, 1640 CodeEmitInfo* info, CodeStub* stub); 1641 1642 LIR_Opr left() const { return _left; } 1643 LIR_Opr right() const { return _right; } 1644 LIR_Opr equal_result() const { return _equal_result; } 1645 LIR_Opr not_equal_result() const { return _not_equal_result; } 1646 LIR_Opr tmp1() const { return _tmp1; } 1647 LIR_Opr tmp2() const { return _tmp2; } 1648 ciKlass* left_klass() const { return _left_klass; } 1649 ciKlass* right_klass() const { return _right_klass; } 1650 LIR_Opr left_klass_op() const { return _left_klass_op; } 1651 LIR_Opr right_klass_op() const { return _right_klass_op; } 1652 CodeStub* stub() const { return _stub; } 1653 1654 virtual void emit_code(LIR_Assembler* masm); 1655 virtual LIR_OpSubstitutabilityCheck* as_OpSubstitutabilityCheck() { return this; } 1656 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1657 }; 1658 1659 // LIR_Op2 1660 class LIR_Op2: public LIR_Op { 1661 friend class LIR_OpVisitState; 1662 1663 protected: 1664 LIR_Opr _opr1; 1665 LIR_Opr _opr2; 1666 LIR_Opr _tmp1; 1667 LIR_Opr _tmp2; 1668 LIR_Opr _tmp3; 1669 LIR_Opr _tmp4; 1670 LIR_Opr _tmp5; 1671 LIR_Condition _condition; 1672 BasicType _type; 1673 1674 void verify() const; 1675 1676 public: 1677 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = nullptr, BasicType type = T_ILLEGAL) 1678 : LIR_Op(code, LIR_OprFact::illegalOpr, info) 1679 , _opr1(opr1) 1680 , _opr2(opr2) 1681 , _tmp1(LIR_OprFact::illegalOpr) 1682 , _tmp2(LIR_OprFact::illegalOpr) 1683 , _tmp3(LIR_OprFact::illegalOpr) 1684 , _tmp4(LIR_OprFact::illegalOpr) 1685 , _tmp5(LIR_OprFact::illegalOpr) 1686 , _condition(condition) 1687 , _type(type) { 1688 assert(code == lir_cmp || code == lir_branch || code == lir_cond_float_branch || code == lir_assert, "code check"); 1689 } 1690 1691 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, BasicType type) 1692 : LIR_Op(code, result, nullptr) 1693 , _opr1(opr1) 1694 , _opr2(opr2) 1695 , _tmp1(LIR_OprFact::illegalOpr) 1696 , _tmp2(LIR_OprFact::illegalOpr) 1697 , _tmp3(LIR_OprFact::illegalOpr) 1698 , _tmp4(LIR_OprFact::illegalOpr) 1699 , _tmp5(LIR_OprFact::illegalOpr) 1700 , _condition(condition) 1701 , _type(type) { 1702 assert(code == lir_cmove, "code check"); 1703 assert(type != T_ILLEGAL, "cmove should have type"); 1704 } 1705 1706 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result = LIR_OprFact::illegalOpr, 1707 CodeEmitInfo* info = nullptr, BasicType type = T_ILLEGAL) 1708 : LIR_Op(code, result, info) 1709 , _opr1(opr1) 1710 , _opr2(opr2) 1711 , _tmp1(LIR_OprFact::illegalOpr) 1712 , _tmp2(LIR_OprFact::illegalOpr) 1713 , _tmp3(LIR_OprFact::illegalOpr) 1714 , _tmp4(LIR_OprFact::illegalOpr) 1715 , _tmp5(LIR_OprFact::illegalOpr) 1716 , _condition(lir_cond_unknown) 1717 , _type(type) { 1718 assert(code != lir_cmp && code != lir_branch && code != lir_cond_float_branch && is_in_range(code, begin_op2, end_op2), "code check"); 1719 } 1720 1721 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp1, LIR_Opr tmp2 = LIR_OprFact::illegalOpr, 1722 LIR_Opr tmp3 = LIR_OprFact::illegalOpr, LIR_Opr tmp4 = LIR_OprFact::illegalOpr, LIR_Opr tmp5 = LIR_OprFact::illegalOpr) 1723 : LIR_Op(code, result, nullptr) 1724 , _opr1(opr1) 1725 , _opr2(opr2) 1726 , _tmp1(tmp1) 1727 , _tmp2(tmp2) 1728 , _tmp3(tmp3) 1729 , _tmp4(tmp4) 1730 , _tmp5(tmp5) 1731 , _condition(lir_cond_unknown) 1732 , _type(T_ILLEGAL) { 1733 assert(code != lir_cmp && code != lir_branch && code != lir_cond_float_branch && is_in_range(code, begin_op2, end_op2), "code check"); 1734 } 1735 1736 LIR_Opr in_opr1() const { return _opr1; } 1737 LIR_Opr in_opr2() const { return _opr2; } 1738 BasicType type() const { return _type; } 1739 LIR_Opr tmp1_opr() const { return _tmp1; } 1740 LIR_Opr tmp2_opr() const { return _tmp2; } 1741 LIR_Opr tmp3_opr() const { return _tmp3; } 1742 LIR_Opr tmp4_opr() const { return _tmp4; } 1743 LIR_Opr tmp5_opr() const { return _tmp5; } 1744 LIR_Condition condition() const { 1745 assert(code() == lir_cmp || code() == lir_branch || code() == lir_cond_float_branch || code() == lir_assert, "only valid for branch and assert"); return _condition; 1746 } 1747 void set_condition(LIR_Condition condition) { 1748 assert(code() == lir_cmp || code() == lir_branch || code() == lir_cond_float_branch, "only valid for branch"); _condition = condition; 1749 } 1750 1751 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; } 1752 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; } 1753 1754 virtual void emit_code(LIR_Assembler* masm); 1755 virtual LIR_Op2* as_Op2() { return this; } 1756 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1757 }; 1758 1759 class LIR_OpBranch: public LIR_Op2 { 1760 friend class LIR_OpVisitState; 1761 1762 private: 1763 Label* _label; 1764 BlockBegin* _block; // if this is a branch to a block, this is the block 1765 BlockBegin* _ublock; // if this is a float-branch, this is the unordered block 1766 CodeStub* _stub; // if this is a branch to a stub, this is the stub 1767 1768 public: 1769 LIR_OpBranch(LIR_Condition cond, Label* lbl) 1770 : LIR_Op2(lir_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*) nullptr) 1771 , _label(lbl) 1772 , _block(nullptr) 1773 , _ublock(nullptr) 1774 , _stub(nullptr) { } 1775 1776 LIR_OpBranch(LIR_Condition cond, BlockBegin* block); 1777 LIR_OpBranch(LIR_Condition cond, CodeStub* stub); 1778 1779 // for unordered comparisons 1780 LIR_OpBranch(LIR_Condition cond, BlockBegin* block, BlockBegin* ublock); 1781 1782 LIR_Condition cond() const { 1783 return condition(); 1784 } 1785 1786 void set_cond(LIR_Condition cond) { 1787 set_condition(cond); 1788 } 1789 1790 Label* label() const { return _label; } 1791 BlockBegin* block() const { return _block; } 1792 BlockBegin* ublock() const { return _ublock; } 1793 CodeStub* stub() const { return _stub; } 1794 1795 void change_block(BlockBegin* b); 1796 void change_ublock(BlockBegin* b); 1797 void negate_cond(); 1798 1799 virtual void emit_code(LIR_Assembler* masm); 1800 virtual LIR_OpBranch* as_OpBranch() { return this; } 1801 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1802 }; 1803 1804 class LIR_OpAllocArray : public LIR_Op { 1805 friend class LIR_OpVisitState; 1806 1807 private: 1808 LIR_Opr _klass; 1809 LIR_Opr _len; 1810 LIR_Opr _tmp1; 1811 LIR_Opr _tmp2; 1812 LIR_Opr _tmp3; 1813 LIR_Opr _tmp4; 1814 CodeStub* _stub; 1815 BasicType _type; 1816 bool _zero_array; 1817 bool _always_slow_path; 1818 1819 public: 1820 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, bool zero_array, bool always_slow_path) 1821 : LIR_Op(lir_alloc_array, result, nullptr) 1822 , _klass(klass) 1823 , _len(len) 1824 , _tmp1(t1) 1825 , _tmp2(t2) 1826 , _tmp3(t3) 1827 , _tmp4(t4) 1828 , _stub(stub) 1829 , _type(type) 1830 , _zero_array(zero_array) 1831 , _always_slow_path(always_slow_path) {} 1832 1833 LIR_Opr klass() const { return _klass; } 1834 LIR_Opr len() const { return _len; } 1835 LIR_Opr obj() const { return result_opr(); } 1836 LIR_Opr tmp1() const { return _tmp1; } 1837 LIR_Opr tmp2() const { return _tmp2; } 1838 LIR_Opr tmp3() const { return _tmp3; } 1839 LIR_Opr tmp4() const { return _tmp4; } 1840 BasicType type() const { return _type; } 1841 CodeStub* stub() const { return _stub; } 1842 bool zero_array() const { return _zero_array; } 1843 bool always_slow_path() const { return _always_slow_path; } 1844 1845 virtual void emit_code(LIR_Assembler* masm); 1846 virtual LIR_OpAllocArray * as_OpAllocArray () { return this; } 1847 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1848 }; 1849 1850 1851 class LIR_Op3: public LIR_Op { 1852 friend class LIR_OpVisitState; 1853 1854 private: 1855 LIR_Opr _opr1; 1856 LIR_Opr _opr2; 1857 LIR_Opr _opr3; 1858 public: 1859 LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = nullptr) 1860 : LIR_Op(code, result, info) 1861 , _opr1(opr1) 1862 , _opr2(opr2) 1863 , _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); } 1864 LIR_Opr in_opr1() const { return _opr1; } 1865 LIR_Opr in_opr2() const { return _opr2; } 1866 LIR_Opr in_opr3() const { return _opr3; } 1867 1868 virtual void emit_code(LIR_Assembler* masm); 1869 virtual LIR_Op3* as_Op3() { return this; } 1870 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1871 }; 1872 1873 class LIR_Op4: public LIR_Op { 1874 friend class LIR_OpVisitState; 1875 protected: 1876 LIR_Opr _opr1; 1877 LIR_Opr _opr2; 1878 LIR_Opr _opr3; 1879 LIR_Opr _opr4; 1880 LIR_Opr _tmp1; 1881 LIR_Opr _tmp2; 1882 LIR_Opr _tmp3; 1883 LIR_Opr _tmp4; 1884 LIR_Opr _tmp5; 1885 LIR_Condition _condition; 1886 BasicType _type; 1887 1888 public: 1889 LIR_Op4(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr opr4, 1890 LIR_Opr result, BasicType type) 1891 : LIR_Op(code, result, nullptr) 1892 , _opr1(opr1) 1893 , _opr2(opr2) 1894 , _opr3(opr3) 1895 , _opr4(opr4) 1896 , _tmp1(LIR_OprFact::illegalOpr) 1897 , _tmp2(LIR_OprFact::illegalOpr) 1898 , _tmp3(LIR_OprFact::illegalOpr) 1899 , _tmp4(LIR_OprFact::illegalOpr) 1900 , _tmp5(LIR_OprFact::illegalOpr) 1901 , _condition(condition) 1902 , _type(type) { 1903 assert(code == lir_cmove, "code check"); 1904 assert(type != T_ILLEGAL, "cmove should have type"); 1905 } 1906 1907 LIR_Opr in_opr1() const { return _opr1; } 1908 LIR_Opr in_opr2() const { return _opr2; } 1909 LIR_Opr in_opr3() const { return _opr3; } 1910 LIR_Opr in_opr4() const { return _opr4; } 1911 BasicType type() const { return _type; } 1912 LIR_Opr tmp1_opr() const { return _tmp1; } 1913 LIR_Opr tmp2_opr() const { return _tmp2; } 1914 LIR_Opr tmp3_opr() const { return _tmp3; } 1915 LIR_Opr tmp4_opr() const { return _tmp4; } 1916 LIR_Opr tmp5_opr() const { return _tmp5; } 1917 1918 LIR_Condition condition() const { return _condition; } 1919 void set_condition(LIR_Condition condition) { _condition = condition; } 1920 1921 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; } 1922 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; } 1923 void set_in_opr3(LIR_Opr opr) { _opr3 = opr; } 1924 void set_in_opr4(LIR_Opr opr) { _opr4 = opr; } 1925 virtual void emit_code(LIR_Assembler* masm); 1926 virtual LIR_Op4* as_Op4() { return this; } 1927 1928 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1929 }; 1930 1931 //-------------------------------- 1932 class LabelObj: public CompilationResourceObj { 1933 private: 1934 Label _label; 1935 public: 1936 LabelObj() {} 1937 Label* label() { return &_label; } 1938 }; 1939 1940 1941 class LIR_OpLock: public LIR_Op { 1942 friend class LIR_OpVisitState; 1943 1944 private: 1945 LIR_Opr _hdr; 1946 LIR_Opr _obj; 1947 LIR_Opr _lock; 1948 LIR_Opr _scratch; 1949 CodeStub* _stub; 1950 CodeStub* _throw_ie_stub; 1951 public: 1952 LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info, CodeStub* throw_ie_stub=nullptr) 1953 : LIR_Op(code, LIR_OprFact::illegalOpr, info) 1954 , _hdr(hdr) 1955 , _obj(obj) 1956 , _lock(lock) 1957 , _scratch(scratch) 1958 , _stub(stub) 1959 , _throw_ie_stub(throw_ie_stub) {} 1960 1961 LIR_Opr hdr_opr() const { return _hdr; } 1962 LIR_Opr obj_opr() const { return _obj; } 1963 LIR_Opr lock_opr() const { return _lock; } 1964 LIR_Opr scratch_opr() const { return _scratch; } 1965 CodeStub* stub() const { return _stub; } 1966 CodeStub* throw_ie_stub() const { return _throw_ie_stub; } 1967 1968 virtual void emit_code(LIR_Assembler* masm); 1969 virtual LIR_OpLock* as_OpLock() { return this; } 1970 void print_instr(outputStream* out) const PRODUCT_RETURN; 1971 }; 1972 1973 class LIR_OpLoadKlass: public LIR_Op { 1974 friend class LIR_OpVisitState; 1975 1976 private: 1977 LIR_Opr _obj; 1978 public: 1979 LIR_OpLoadKlass(LIR_Opr obj, LIR_Opr result, CodeEmitInfo* info) 1980 : LIR_Op(lir_load_klass, result, info) 1981 , _obj(obj) 1982 {} 1983 1984 LIR_Opr obj() const { return _obj; } 1985 1986 virtual LIR_OpLoadKlass* as_OpLoadKlass() { return this; } 1987 virtual void emit_code(LIR_Assembler* masm); 1988 void print_instr(outputStream* out) const PRODUCT_RETURN; 1989 }; 1990 1991 #ifdef ASSERT 1992 // LIR_OpAssert 1993 class LIR_OpAssert : public LIR_Op2 { 1994 friend class LIR_OpVisitState; 1995 1996 private: 1997 const char* _msg; 1998 bool _halt; 1999 2000 public: 2001 LIR_OpAssert(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, const char* msg, bool halt) 2002 : LIR_Op2(lir_assert, condition, opr1, opr2) 2003 , _msg(msg) 2004 , _halt(halt) { 2005 } 2006 2007 const char* msg() const { return _msg; } 2008 bool halt() const { return _halt; } 2009 2010 virtual void emit_code(LIR_Assembler* masm); 2011 virtual LIR_OpAssert* as_OpAssert() { return this; } 2012 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 2013 }; 2014 #endif 2015 2016 // LIR_OpCompareAndSwap 2017 class LIR_OpCompareAndSwap : public LIR_Op { 2018 friend class LIR_OpVisitState; 2019 2020 private: 2021 LIR_Opr _addr; 2022 LIR_Opr _cmp_value; 2023 LIR_Opr _new_value; 2024 LIR_Opr _tmp1; 2025 LIR_Opr _tmp2; 2026 2027 public: 2028 LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 2029 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) 2030 : LIR_Op(code, result, nullptr) // no result, no info 2031 , _addr(addr) 2032 , _cmp_value(cmp_value) 2033 , _new_value(new_value) 2034 , _tmp1(t1) 2035 , _tmp2(t2) { } 2036 2037 LIR_Opr addr() const { return _addr; } 2038 LIR_Opr cmp_value() const { return _cmp_value; } 2039 LIR_Opr new_value() const { return _new_value; } 2040 LIR_Opr tmp1() const { return _tmp1; } 2041 LIR_Opr tmp2() const { return _tmp2; } 2042 2043 virtual void emit_code(LIR_Assembler* masm); 2044 virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; } 2045 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 2046 }; 2047 2048 // LIR_OpProfileCall 2049 class LIR_OpProfileCall : public LIR_Op { 2050 friend class LIR_OpVisitState; 2051 2052 private: 2053 ciMethod* _profiled_method; 2054 int _profiled_bci; 2055 ciMethod* _profiled_callee; 2056 LIR_Opr _mdo; 2057 LIR_Opr _recv; 2058 LIR_Opr _tmp1; 2059 ciKlass* _known_holder; 2060 2061 public: 2062 // Destroys recv 2063 LIR_OpProfileCall(ciMethod* profiled_method, int profiled_bci, ciMethod* profiled_callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* known_holder) 2064 : LIR_Op(lir_profile_call, LIR_OprFact::illegalOpr, nullptr) // no result, no info 2065 , _profiled_method(profiled_method) 2066 , _profiled_bci(profiled_bci) 2067 , _profiled_callee(profiled_callee) 2068 , _mdo(mdo) 2069 , _recv(recv) 2070 , _tmp1(t1) 2071 , _known_holder(known_holder) { } 2072 2073 ciMethod* profiled_method() const { return _profiled_method; } 2074 int profiled_bci() const { return _profiled_bci; } 2075 ciMethod* profiled_callee() const { return _profiled_callee; } 2076 LIR_Opr mdo() const { return _mdo; } 2077 LIR_Opr recv() const { return _recv; } 2078 LIR_Opr tmp1() const { return _tmp1; } 2079 ciKlass* known_holder() const { return _known_holder; } 2080 2081 virtual void emit_code(LIR_Assembler* masm); 2082 virtual LIR_OpProfileCall* as_OpProfileCall() { return this; } 2083 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 2084 bool should_profile_receiver_type() const { 2085 bool callee_is_static = _profiled_callee->is_loaded() && _profiled_callee->is_static(); 2086 bool callee_is_private = _profiled_callee->is_loaded() && _profiled_callee->is_private(); 2087 Bytecodes::Code bc = _profiled_method->java_code_at_bci(_profiled_bci); 2088 bool call_is_virtual = (bc == Bytecodes::_invokevirtual && !callee_is_private) || bc == Bytecodes::_invokeinterface; 2089 return C1ProfileVirtualCalls && call_is_virtual && !callee_is_static; 2090 } 2091 }; 2092 2093 // LIR_OpProfileType 2094 class LIR_OpProfileType : public LIR_Op { 2095 friend class LIR_OpVisitState; 2096 2097 private: 2098 LIR_Opr _mdp; 2099 LIR_Opr _obj; 2100 LIR_Opr _tmp; 2101 ciKlass* _exact_klass; // non null if we know the klass statically (no need to load it from _obj) 2102 intptr_t _current_klass; // what the profiling currently reports 2103 bool _not_null; // true if we know statically that _obj cannot be null 2104 bool _no_conflict; // true if we're profling parameters, _exact_klass is not null and we know 2105 // _exact_klass it the only possible type for this parameter in any context. 2106 2107 public: 2108 // Destroys recv 2109 LIR_OpProfileType(LIR_Opr mdp, LIR_Opr obj, ciKlass* exact_klass, intptr_t current_klass, LIR_Opr tmp, bool not_null, bool no_conflict) 2110 : LIR_Op(lir_profile_type, LIR_OprFact::illegalOpr, nullptr) // no result, no info 2111 , _mdp(mdp) 2112 , _obj(obj) 2113 , _tmp(tmp) 2114 , _exact_klass(exact_klass) 2115 , _current_klass(current_klass) 2116 , _not_null(not_null) 2117 , _no_conflict(no_conflict) { } 2118 2119 LIR_Opr mdp() const { return _mdp; } 2120 LIR_Opr obj() const { return _obj; } 2121 LIR_Opr tmp() const { return _tmp; } 2122 ciKlass* exact_klass() const { return _exact_klass; } 2123 intptr_t current_klass() const { return _current_klass; } 2124 bool not_null() const { return _not_null; } 2125 bool no_conflict() const { return _no_conflict; } 2126 2127 virtual void emit_code(LIR_Assembler* masm); 2128 virtual LIR_OpProfileType* as_OpProfileType() { return this; } 2129 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 2130 }; 2131 2132 // LIR_OpProfileInlineType 2133 class LIR_OpProfileInlineType : public LIR_Op { 2134 friend class LIR_OpVisitState; 2135 2136 private: 2137 LIR_Opr _mdp; 2138 LIR_Opr _obj; 2139 int _flag; 2140 LIR_Opr _tmp; 2141 bool _not_null; // true if we know statically that _obj cannot be null 2142 2143 public: 2144 // Destroys recv 2145 LIR_OpProfileInlineType(LIR_Opr mdp, LIR_Opr obj, int flag, LIR_Opr tmp, bool not_null) 2146 : LIR_Op(lir_profile_inline_type, LIR_OprFact::illegalOpr, nullptr) // no result, no info 2147 , _mdp(mdp) 2148 , _obj(obj) 2149 , _flag(flag) 2150 , _tmp(tmp) 2151 , _not_null(not_null) { } 2152 2153 LIR_Opr mdp() const { return _mdp; } 2154 LIR_Opr obj() const { return _obj; } 2155 int flag() const { return _flag; } 2156 LIR_Opr tmp() const { return _tmp; } 2157 bool not_null() const { return _not_null; } 2158 2159 virtual void emit_code(LIR_Assembler* masm); 2160 virtual LIR_OpProfileInlineType* as_OpProfileInlineType() { return this; } 2161 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 2162 }; 2163 2164 class LIR_InsertionBuffer; 2165 2166 //--------------------------------LIR_List--------------------------------------------------- 2167 // Maintains a list of LIR instructions (one instance of LIR_List per basic block) 2168 // The LIR instructions are appended by the LIR_List class itself; 2169 // 2170 // Notes: 2171 // - all offsets are(should be) in bytes 2172 // - local positions are specified with an offset, with offset 0 being local 0 2173 2174 class LIR_List: public CompilationResourceObj { 2175 private: 2176 LIR_OpList _operations; 2177 2178 Compilation* _compilation; 2179 #ifndef PRODUCT 2180 BlockBegin* _block; 2181 #endif 2182 #ifdef ASSERT 2183 const char * _file; 2184 int _line; 2185 #endif 2186 #ifdef RISCV 2187 LIR_Opr _cmp_opr1; 2188 LIR_Opr _cmp_opr2; 2189 #endif 2190 2191 public: 2192 void append(LIR_Op* op) { 2193 if (op->source() == nullptr) 2194 op->set_source(_compilation->current_instruction()); 2195 #ifndef PRODUCT 2196 if (PrintIRWithLIR) { 2197 _compilation->maybe_print_current_instruction(); 2198 op->print(); tty->cr(); 2199 } 2200 #endif // PRODUCT 2201 2202 #ifdef RISCV 2203 set_cmp_oprs(op); 2204 // lir_cmp set cmp oprs only on riscv 2205 if (op->code() == lir_cmp) return; 2206 #endif 2207 2208 _operations.append(op); 2209 2210 #ifdef ASSERT 2211 op->verify(); 2212 op->set_file_and_line(_file, _line); 2213 _file = nullptr; 2214 _line = 0; 2215 #endif 2216 } 2217 2218 LIR_List(Compilation* compilation, BlockBegin* block = nullptr); 2219 2220 #ifdef ASSERT 2221 void set_file_and_line(const char * file, int line); 2222 #endif 2223 2224 #ifdef RISCV 2225 void set_cmp_oprs(LIR_Op* op); 2226 #endif 2227 2228 //---------- accessors --------------- 2229 LIR_OpList* instructions_list() { return &_operations; } 2230 int length() const { return _operations.length(); } 2231 LIR_Op* at(int i) const { return _operations.at(i); } 2232 2233 NOT_PRODUCT(BlockBegin* block() const { return _block; }); 2234 2235 // insert LIR_Ops in buffer to right places in LIR_List 2236 void append(LIR_InsertionBuffer* buffer); 2237 2238 //---------- mutators --------------- 2239 void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); } 2240 void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); } 2241 void remove_at(int i) { _operations.remove_at(i); } 2242 2243 //---------- printing ------------- 2244 void print_instructions() PRODUCT_RETURN; 2245 2246 2247 //---------- instructions ------------- 2248 void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result, 2249 address dest, LIR_OprList* arguments, 2250 CodeEmitInfo* info) { 2251 append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info)); 2252 } 2253 void call_static(ciMethod* method, LIR_Opr result, 2254 address dest, LIR_OprList* arguments, CodeEmitInfo* info) { 2255 append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info)); 2256 } 2257 void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result, 2258 address dest, LIR_OprList* arguments, CodeEmitInfo* info) { 2259 append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info)); 2260 } 2261 void call_dynamic(ciMethod* method, LIR_Opr receiver, LIR_Opr result, 2262 address dest, LIR_OprList* arguments, CodeEmitInfo* info) { 2263 append(new LIR_OpJavaCall(lir_dynamic_call, method, receiver, result, dest, arguments, info)); 2264 } 2265 2266 void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); } 2267 void membar() { append(new LIR_Op0(lir_membar)); } 2268 void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); } 2269 void membar_release() { append(new LIR_Op0(lir_membar_release)); } 2270 void membar_loadload() { append(new LIR_Op0(lir_membar_loadload)); } 2271 void membar_storestore() { append(new LIR_Op0(lir_membar_storestore)); } 2272 void membar_loadstore() { append(new LIR_Op0(lir_membar_loadstore)); } 2273 void membar_storeload() { append(new LIR_Op0(lir_membar_storeload)); } 2274 2275 void nop() { append(new LIR_Op0(lir_nop)); } 2276 2277 void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); } 2278 void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); } 2279 2280 void on_spin_wait() { append(new LIR_Op0(lir_on_spin_wait)); } 2281 2282 void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); } 2283 2284 void leal(LIR_Opr from, LIR_Opr result_reg, LIR_PatchCode patch_code = lir_patch_none, CodeEmitInfo* info = nullptr) { append(new LIR_Op1(lir_leal, from, result_reg, T_ILLEGAL, patch_code, info)); } 2285 2286 // result is a stack location for old backend and vreg for UseLinearScan 2287 // stack_loc_temp is an illegal register for old backend 2288 void move(LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = nullptr) { append(new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); } 2289 void move(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = nullptr) { append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info)); } 2290 void move(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = nullptr) { append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info)); } 2291 void move_wide(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = nullptr) { 2292 if (UseCompressedOops) { 2293 append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info, lir_move_wide)); 2294 } else { 2295 move(src, dst, info); 2296 } 2297 } 2298 void move_wide(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = nullptr) { 2299 if (UseCompressedOops) { 2300 append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info, lir_move_wide)); 2301 } else { 2302 move(src, dst, info); 2303 } 2304 } 2305 void volatile_move(LIR_Opr src, LIR_Opr dst, BasicType type, CodeEmitInfo* info = nullptr, LIR_PatchCode patch_code = lir_patch_none) { append(new LIR_Op1(lir_move, src, dst, type, patch_code, info, lir_move_volatile)); } 2306 2307 void oop2reg (jobject o, LIR_Opr reg) { assert(reg->type() == T_OBJECT, "bad reg"); append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg)); } 2308 void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info); 2309 2310 void metadata2reg (Metadata* o, LIR_Opr reg) { assert(reg->type() == T_METADATA, "bad reg"); append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg)); } 2311 void klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info); 2312 2313 void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); } 2314 void return_op(LIR_Opr result) { append(new LIR_OpReturn(result)); } 2315 2316 void convert(Bytecodes::Code code, LIR_Opr left, LIR_Opr dst, ConversionStub* stub = nullptr/*, bool is_32bit = false*/) { append(new LIR_OpConvert(code, left, dst, stub)); } 2317 2318 void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); } 2319 void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); } 2320 void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); } 2321 2322 void null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null = false); 2323 void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) { 2324 append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info)); 2325 } 2326 void unwind_exception(LIR_Opr exceptionOop) { 2327 append(new LIR_Op1(lir_unwind, exceptionOop)); 2328 } 2329 2330 void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); } 2331 void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); } 2332 2333 void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = nullptr) { 2334 append(new LIR_Op2(lir_cmp, condition, left, right, info)); 2335 } 2336 void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = nullptr) { 2337 cmp(condition, left, LIR_OprFact::intConst(right), info); 2338 } 2339 2340 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info); 2341 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info); 2342 2343 void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst, BasicType type, 2344 LIR_Opr cmp_opr1 = LIR_OprFact::illegalOpr, LIR_Opr cmp_opr2 = LIR_OprFact::illegalOpr) { 2345 append(new LIR_Op4(lir_cmove, condition, src1, src2, cmp_opr1, cmp_opr2, dst, type)); 2346 } 2347 2348 void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 2349 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr); 2350 void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 2351 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr); 2352 void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 2353 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr); 2354 2355 void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op1(lir_abs , from, to, tmp)); } 2356 void negate(LIR_Opr from, LIR_Opr to, LIR_Opr tmp = LIR_OprFact::illegalOpr) { append(new LIR_Op1(lir_neg, from, to, tmp)); } 2357 void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op1(lir_sqrt, from, to, tmp)); } 2358 void fmad(LIR_Opr from, LIR_Opr from1, LIR_Opr from2, LIR_Opr to) { append(new LIR_Op3(lir_fmad, from, from1, from2, to)); } 2359 void fmaf(LIR_Opr from, LIR_Opr from1, LIR_Opr from2, LIR_Opr to) { append(new LIR_Op3(lir_fmaf, from, from1, from2, to)); } 2360 void f2hf(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op1(lir_f2hf, from, to, tmp)); } 2361 void hf2f(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op1(lir_hf2f, from, to, tmp)); } 2362 2363 void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); } 2364 void sub (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = nullptr) { append(new LIR_Op2(lir_sub, left, right, res, info)); } 2365 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); } 2366 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_mul, left, right, res, tmp)); } 2367 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = nullptr) { append(new LIR_Op2(lir_div, left, right, res, info)); } 2368 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_div, left, right, res, tmp)); } 2369 void rem (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = nullptr) { append(new LIR_Op2(lir_rem, left, right, res, info)); } 2370 2371 void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2372 void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code); 2373 2374 void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = nullptr, LIR_PatchCode patch_code = lir_patch_none); 2375 2376 void store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2377 void store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2378 void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = nullptr, LIR_PatchCode patch_code = lir_patch_none); 2379 void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2380 void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code); 2381 2382 void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2383 void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2384 void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2385 void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2386 2387 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); 2388 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, bool zero_array = true, bool always_slow_path = false); 2389 2390 // jump is an unconditional branch 2391 void jump(BlockBegin* block) { 2392 append(new LIR_OpBranch(lir_cond_always, block)); 2393 } 2394 void jump(CodeStub* stub) { 2395 append(new LIR_OpBranch(lir_cond_always, stub)); 2396 } 2397 void branch(LIR_Condition cond, Label* lbl) { 2398 append(new LIR_OpBranch(cond, lbl)); 2399 } 2400 // Should not be used for fp comparisons 2401 void branch(LIR_Condition cond, BlockBegin* block) { 2402 append(new LIR_OpBranch(cond, block)); 2403 } 2404 // Should not be used for fp comparisons 2405 void branch(LIR_Condition cond, CodeStub* stub) { 2406 append(new LIR_OpBranch(cond, stub)); 2407 } 2408 // Should only be used for fp comparisons 2409 void branch(LIR_Condition cond, BlockBegin* block, BlockBegin* unordered) { 2410 append(new LIR_OpBranch(cond, block, unordered)); 2411 } 2412 2413 void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp); 2414 void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp); 2415 void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp); 2416 2417 void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); } 2418 void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); } 2419 void unsigned_shift_right(LIR_Opr value, int count, LIR_Opr dst) { unsigned_shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); } 2420 2421 void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); } 2422 void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less); 2423 2424 void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) { 2425 append(new LIR_OpRTCall(routine, tmp, result, arguments)); 2426 } 2427 2428 void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result, 2429 LIR_OprList* arguments, CodeEmitInfo* info) { 2430 append(new LIR_OpRTCall(routine, tmp, result, arguments, info)); 2431 } 2432 2433 void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); } 2434 void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub); 2435 void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info, CodeStub* throw_ie_stub=nullptr); 2436 2437 void breakpoint() { append(new LIR_Op0(lir_breakpoint)); } 2438 2439 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)); } 2440 2441 void update_crc32(LIR_Opr crc, LIR_Opr val, LIR_Opr res) { append(new LIR_OpUpdateCRC32(crc, val, res)); } 2442 2443 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); 2444 void store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci); 2445 void check_flat_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub); 2446 void check_null_free_array(LIR_Opr array, LIR_Opr tmp); 2447 void substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result, 2448 LIR_Opr tmp1, LIR_Opr tmp2, 2449 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op, 2450 CodeEmitInfo* info, CodeStub* stub); 2451 2452 void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass, 2453 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, 2454 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub, 2455 ciMethod* profiled_method, int profiled_bci, bool is_null_free); 2456 // MethodData* profiling 2457 void profile_call(ciMethod* method, int bci, ciMethod* callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* cha_klass) { 2458 append(new LIR_OpProfileCall(method, bci, callee, mdo, recv, t1, cha_klass)); 2459 } 2460 void profile_type(LIR_Address* mdp, LIR_Opr obj, ciKlass* exact_klass, intptr_t current_klass, LIR_Opr tmp, bool not_null, bool no_conflict) { 2461 append(new LIR_OpProfileType(LIR_OprFact::address(mdp), obj, exact_klass, current_klass, tmp, not_null, no_conflict)); 2462 } 2463 void profile_inline_type(LIR_Address* mdp, LIR_Opr obj, int flag, LIR_Opr tmp, bool not_null) { 2464 append(new LIR_OpProfileInlineType(LIR_OprFact::address(mdp), obj, flag, tmp, not_null)); 2465 } 2466 2467 void xadd(LIR_Opr src, LIR_Opr add, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xadd, src, add, res, tmp)); } 2468 void xchg(LIR_Opr src, LIR_Opr set, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xchg, src, set, res, tmp)); } 2469 2470 void load_klass(LIR_Opr obj, LIR_Opr result, CodeEmitInfo* info) { append(new LIR_OpLoadKlass(obj, result, info)); } 2471 2472 #ifdef ASSERT 2473 void lir_assert(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, const char* msg, bool halt) { append(new LIR_OpAssert(condition, opr1, opr2, msg, halt)); } 2474 #endif 2475 }; 2476 2477 void print_LIR(BlockList* blocks); 2478 2479 class LIR_InsertionBuffer : public CompilationResourceObj { 2480 private: 2481 LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (null when uninitialized) 2482 2483 // list of insertion points. index and count are stored alternately: 2484 // _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted 2485 // _index_and_count[i * 2 + 1]: the number of ops to be inserted at index 2486 intStack _index_and_count; 2487 2488 // the LIR_Ops to be inserted 2489 LIR_OpList _ops; 2490 2491 void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); } 2492 void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); } 2493 void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); } 2494 2495 #ifdef ASSERT 2496 void verify(); 2497 #endif 2498 public: 2499 LIR_InsertionBuffer() : _lir(nullptr), _index_and_count(8), _ops(8) { } 2500 2501 // must be called before using the insertion buffer 2502 void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); } 2503 bool initialized() const { return _lir != nullptr; } 2504 // called automatically when the buffer is appended to the LIR_List 2505 void finish() { _lir = nullptr; } 2506 2507 // accessors 2508 LIR_List* lir_list() const { return _lir; } 2509 int number_of_insertion_points() const { return _index_and_count.length() >> 1; } 2510 int index_at(int i) const { return _index_and_count.at((i << 1)); } 2511 int count_at(int i) const { return _index_and_count.at((i << 1) + 1); } 2512 2513 int number_of_ops() const { return _ops.length(); } 2514 LIR_Op* op_at(int i) const { return _ops.at(i); } 2515 2516 // append an instruction to the buffer 2517 void append(int index, LIR_Op* op); 2518 2519 // instruction 2520 void move(int index, LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = nullptr) { append(index, new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); } 2521 }; 2522 2523 2524 // 2525 // LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way. 2526 // Calling a LIR_Op's visit function with a LIR_OpVisitState causes 2527 // information about the input, output and temporaries used by the 2528 // op to be recorded. It also records whether the op has call semantics 2529 // and also records all the CodeEmitInfos used by this op. 2530 // 2531 2532 2533 class LIR_OpVisitState: public StackObj { 2534 public: 2535 typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode; 2536 2537 enum { 2538 maxNumberOfOperands = 21, 2539 maxNumberOfInfos = 4 2540 }; 2541 2542 private: 2543 LIR_Op* _op; 2544 2545 // optimization: the operands and infos are not stored in a variable-length 2546 // list, but in a fixed-size array to save time of size checks and resizing 2547 int _oprs_len[numModes]; 2548 LIR_Opr* _oprs_new[numModes][maxNumberOfOperands]; 2549 int _info_len; 2550 CodeEmitInfo* _info_new[maxNumberOfInfos]; 2551 2552 bool _has_call; 2553 bool _has_slow_case; 2554 2555 2556 // only include register operands 2557 // addresses are decomposed to the base and index registers 2558 // constants and stack operands are ignored 2559 void append(LIR_Opr& opr, OprMode mode) { 2560 assert(opr->is_valid(), "should not call this otherwise"); 2561 assert(mode >= 0 && mode < numModes, "bad mode"); 2562 2563 if (opr->is_register()) { 2564 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow"); 2565 _oprs_new[mode][_oprs_len[mode]++] = &opr; 2566 2567 } else if (opr->is_pointer()) { 2568 LIR_Address* address = opr->as_address_ptr(); 2569 if (address != nullptr) { 2570 // special handling for addresses: add base and index register of the address 2571 // both are always input operands or temp if we want to extend 2572 // their liveness! 2573 if (mode == outputMode) { 2574 mode = inputMode; 2575 } 2576 assert (mode == inputMode || mode == tempMode, "input or temp only for addresses"); 2577 if (address->_base->is_valid()) { 2578 assert(address->_base->is_register(), "must be"); 2579 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow"); 2580 _oprs_new[mode][_oprs_len[mode]++] = &address->_base; 2581 } 2582 if (address->_index->is_valid()) { 2583 assert(address->_index->is_register(), "must be"); 2584 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow"); 2585 _oprs_new[mode][_oprs_len[mode]++] = &address->_index; 2586 } 2587 2588 } else { 2589 assert(opr->is_constant(), "constant operands are not processed"); 2590 } 2591 } else { 2592 assert(opr->is_stack(), "stack operands are not processed"); 2593 } 2594 } 2595 2596 void append(CodeEmitInfo* info) { 2597 assert(info != nullptr, "should not call this otherwise"); 2598 assert(_info_len < maxNumberOfInfos, "array overflow"); 2599 _info_new[_info_len++] = info; 2600 } 2601 2602 public: 2603 LIR_OpVisitState() { reset(); } 2604 2605 LIR_Op* op() const { return _op; } 2606 void set_op(LIR_Op* op) { reset(); _op = op; } 2607 2608 bool has_call() const { return _has_call; } 2609 bool has_slow_case() const { return _has_slow_case; } 2610 2611 void reset() { 2612 _op = nullptr; 2613 _has_call = false; 2614 _has_slow_case = false; 2615 2616 _oprs_len[inputMode] = 0; 2617 _oprs_len[tempMode] = 0; 2618 _oprs_len[outputMode] = 0; 2619 _info_len = 0; 2620 } 2621 2622 2623 int opr_count(OprMode mode) const { 2624 assert(mode >= 0 && mode < numModes, "bad mode"); 2625 return _oprs_len[mode]; 2626 } 2627 2628 LIR_Opr opr_at(OprMode mode, int index) const { 2629 assert(mode >= 0 && mode < numModes, "bad mode"); 2630 assert(index >= 0 && index < _oprs_len[mode], "index out of bound"); 2631 return *_oprs_new[mode][index]; 2632 } 2633 2634 void set_opr_at(OprMode mode, int index, LIR_Opr opr) const { 2635 assert(mode >= 0 && mode < numModes, "bad mode"); 2636 assert(index >= 0 && index < _oprs_len[mode], "index out of bound"); 2637 *_oprs_new[mode][index] = opr; 2638 } 2639 2640 int info_count() const { 2641 return _info_len; 2642 } 2643 2644 CodeEmitInfo* info_at(int index) const { 2645 assert(index < _info_len, "index out of bounds"); 2646 return _info_new[index]; 2647 } 2648 2649 XHandlers* all_xhandler(); 2650 2651 // collects all register operands of the instruction 2652 void visit(LIR_Op* op); 2653 2654 #ifdef ASSERT 2655 // check that an operation has no operands 2656 bool no_operands(LIR_Op* op); 2657 #endif 2658 2659 // LIR_Op visitor functions use these to fill in the state 2660 void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); } 2661 void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); } 2662 void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); } 2663 void do_info(CodeEmitInfo* info) { append(info); } 2664 2665 void do_stub(CodeStub* stub); 2666 void do_call() { _has_call = true; } 2667 void do_slow_case() { _has_slow_case = true; } 2668 void do_slow_case(CodeEmitInfo* info) { 2669 _has_slow_case = true; 2670 append(info); 2671 } 2672 }; 2673 2674 2675 inline LIR_Opr LIR_Opr::illegalOpr() { return LIR_OprFact::illegalOpr; }; 2676 2677 inline LIR_Opr LIR_Opr::nullOpr() { return LIR_OprFact::nullOpr; }; 2678 2679 #endif // SHARE_C1_C1_LIR_HPP