1 /* 2 * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_C1_C1_LIR_HPP 26 #define SHARE_VM_C1_C1_LIR_HPP 27 28 #include "c1/c1_Defs.hpp" 29 #include "c1/c1_ValueType.hpp" 30 #include "oops/method.hpp" 31 32 class BlockBegin; 33 class BlockList; 34 class LIR_Assembler; 35 class CodeEmitInfo; 36 class CodeStub; 37 class CodeStubList; 38 class ArrayCopyStub; 39 class LIR_Op; 40 class ciType; 41 class ValueType; 42 class LIR_OpVisitState; 43 class FpuStackSim; 44 45 //--------------------------------------------------------------------- 46 // LIR Operands 47 // LIR_OprDesc 48 // LIR_OprPtr 49 // LIR_Const 50 // LIR_Address 51 //--------------------------------------------------------------------- 52 class LIR_OprDesc; 53 class LIR_OprPtr; 54 class LIR_Const; 55 class LIR_Address; 56 class LIR_OprVisitor; 57 58 59 typedef LIR_OprDesc* LIR_Opr; 60 typedef int RegNr; 61 62 define_array(LIR_OprArray, LIR_Opr) 63 define_stack(LIR_OprList, LIR_OprArray) 64 65 define_array(LIR_OprRefArray, LIR_Opr*) 66 define_stack(LIR_OprRefList, LIR_OprRefArray) 67 68 define_array(CodeEmitInfoArray, CodeEmitInfo*) 69 define_stack(CodeEmitInfoList, CodeEmitInfoArray) 70 71 define_array(LIR_OpArray, LIR_Op*) 72 define_stack(LIR_OpList, LIR_OpArray) 73 74 // define LIR_OprPtr early so LIR_OprDesc can refer to it 75 class LIR_OprPtr: public CompilationResourceObj { 76 public: 77 bool is_oop_pointer() const { return (type() == T_OBJECT); } 78 bool is_float_kind() const { BasicType t = type(); return (t == T_FLOAT) || (t == T_DOUBLE); } 79 80 virtual LIR_Const* as_constant() { return NULL; } 81 virtual LIR_Address* as_address() { return NULL; } 82 virtual BasicType type() const = 0; 83 virtual void print_value_on(outputStream* out) const = 0; 84 }; 85 86 87 88 // LIR constants 89 class LIR_Const: public LIR_OprPtr { 90 private: 91 JavaValue _value; 92 93 void type_check(BasicType t) const { assert(type() == t, "type check"); } 94 void type_check(BasicType t1, BasicType t2) const { assert(type() == t1 || type() == t2, "type check"); } 95 void type_check(BasicType t1, BasicType t2, BasicType t3) const { assert(type() == t1 || type() == t2 || type() == t3, "type check"); } 96 97 public: 98 LIR_Const(jint i, bool is_address=false) { _value.set_type(is_address?T_ADDRESS:T_INT); _value.set_jint(i); } 99 LIR_Const(jlong l) { _value.set_type(T_LONG); _value.set_jlong(l); } 100 LIR_Const(jfloat f) { _value.set_type(T_FLOAT); _value.set_jfloat(f); } 101 LIR_Const(jdouble d) { _value.set_type(T_DOUBLE); _value.set_jdouble(d); } 102 LIR_Const(jobject o) { _value.set_type(T_OBJECT); _value.set_jobject(o); } 103 LIR_Const(void* p) { 104 #ifdef _LP64 105 assert(sizeof(jlong) >= sizeof(p), "too small");; 106 _value.set_type(T_LONG); _value.set_jlong((jlong)p); 107 #else 108 assert(sizeof(jint) >= sizeof(p), "too small");; 109 _value.set_type(T_INT); _value.set_jint((jint)p); 110 #endif 111 } 112 LIR_Const(Metadata* m) { 113 _value.set_type(T_METADATA); 114 #ifdef _LP64 115 _value.set_jlong((jlong)m); 116 #else 117 _value.set_jint((jint)m); 118 #endif // _LP64 119 } 120 121 virtual BasicType type() const { return _value.get_type(); } 122 virtual LIR_Const* as_constant() { return this; } 123 124 jint as_jint() const { type_check(T_INT, T_ADDRESS); return _value.get_jint(); } 125 jlong as_jlong() const { type_check(T_LONG ); return _value.get_jlong(); } 126 jfloat as_jfloat() const { type_check(T_FLOAT ); return _value.get_jfloat(); } 127 jdouble as_jdouble() const { type_check(T_DOUBLE); return _value.get_jdouble(); } 128 jobject as_jobject() const { type_check(T_OBJECT); return _value.get_jobject(); } 129 jint as_jint_lo() const { type_check(T_LONG ); return low(_value.get_jlong()); } 130 jint as_jint_hi() const { type_check(T_LONG ); return high(_value.get_jlong()); } 131 132 #ifdef _LP64 133 address as_pointer() const { type_check(T_LONG ); return (address)_value.get_jlong(); } 134 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jlong(); } 135 #else 136 address as_pointer() const { type_check(T_INT ); return (address)_value.get_jint(); } 137 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jint(); } 138 #endif 139 140 141 jint as_jint_bits() const { type_check(T_FLOAT, T_INT, T_ADDRESS); return _value.get_jint(); } 142 jint as_jint_lo_bits() const { 143 if (type() == T_DOUBLE) { 144 return low(jlong_cast(_value.get_jdouble())); 145 } else { 146 return as_jint_lo(); 147 } 148 } 149 jint as_jint_hi_bits() const { 150 if (type() == T_DOUBLE) { 151 return high(jlong_cast(_value.get_jdouble())); 152 } else { 153 return as_jint_hi(); 154 } 155 } 156 jlong as_jlong_bits() const { 157 if (type() == T_DOUBLE) { 158 return jlong_cast(_value.get_jdouble()); 159 } else { 160 return as_jlong(); 161 } 162 } 163 164 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN; 165 166 167 bool is_zero_float() { 168 jfloat f = as_jfloat(); 169 jfloat ok = 0.0f; 170 return jint_cast(f) == jint_cast(ok); 171 } 172 173 bool is_one_float() { 174 jfloat f = as_jfloat(); 175 return !g_isnan(f) && g_isfinite(f) && f == 1.0; 176 } 177 178 bool is_zero_double() { 179 jdouble d = as_jdouble(); 180 jdouble ok = 0.0; 181 return jlong_cast(d) == jlong_cast(ok); 182 } 183 184 bool is_one_double() { 185 jdouble d = as_jdouble(); 186 return !g_isnan(d) && g_isfinite(d) && d == 1.0; 187 } 188 }; 189 190 191 //---------------------LIR Operand descriptor------------------------------------ 192 // 193 // The class LIR_OprDesc represents a LIR instruction operand; 194 // it can be a register (ALU/FPU), stack location or a constant; 195 // Constants and addresses are represented as resource area allocated 196 // structures (see above). 197 // Registers and stack locations are inlined into the this pointer 198 // (see value function). 199 200 class LIR_OprDesc: public CompilationResourceObj { 201 public: 202 // value structure: 203 // data opr-type opr-kind 204 // +--------------+-------+-------+ 205 // [max...........|7 6 5 4|3 2 1 0] 206 // ^ 207 // is_pointer bit 208 // 209 // lowest bit cleared, means it is a structure pointer 210 // we need 4 bits to represent types 211 212 private: 213 friend class LIR_OprFact; 214 215 // Conversion 216 intptr_t value() const { return (intptr_t) this; } 217 218 bool check_value_mask(intptr_t mask, intptr_t masked_value) const { 219 return (value() & mask) == masked_value; 220 } 221 222 enum OprKind { 223 pointer_value = 0 224 , stack_value = 1 225 , cpu_register = 3 226 , fpu_register = 5 227 , illegal_value = 7 228 }; 229 230 enum OprBits { 231 pointer_bits = 1 232 , kind_bits = 3 233 , type_bits = 4 234 , size_bits = 2 235 , destroys_bits = 1 236 , virtual_bits = 1 237 , is_xmm_bits = 1 238 , last_use_bits = 1 239 , is_fpu_stack_offset_bits = 1 // used in assertion checking on x86 for FPU stack slot allocation 240 , non_data_bits = kind_bits + type_bits + size_bits + destroys_bits + last_use_bits + 241 is_fpu_stack_offset_bits + virtual_bits + is_xmm_bits 242 , data_bits = BitsPerInt - non_data_bits 243 , reg_bits = data_bits / 2 // for two registers in one value encoding 244 }; 245 246 enum OprShift { 247 kind_shift = 0 248 , type_shift = kind_shift + kind_bits 249 , size_shift = type_shift + type_bits 250 , destroys_shift = size_shift + size_bits 251 , last_use_shift = destroys_shift + destroys_bits 252 , is_fpu_stack_offset_shift = last_use_shift + last_use_bits 253 , virtual_shift = is_fpu_stack_offset_shift + is_fpu_stack_offset_bits 254 , is_xmm_shift = virtual_shift + virtual_bits 255 , data_shift = is_xmm_shift + is_xmm_bits 256 , reg1_shift = data_shift 257 , reg2_shift = data_shift + reg_bits 258 259 }; 260 261 enum OprSize { 262 single_size = 0 << size_shift 263 , double_size = 1 << size_shift 264 }; 265 266 enum OprMask { 267 kind_mask = right_n_bits(kind_bits) 268 , type_mask = right_n_bits(type_bits) << type_shift 269 , size_mask = right_n_bits(size_bits) << size_shift 270 , last_use_mask = right_n_bits(last_use_bits) << last_use_shift 271 , is_fpu_stack_offset_mask = right_n_bits(is_fpu_stack_offset_bits) << is_fpu_stack_offset_shift 272 , virtual_mask = right_n_bits(virtual_bits) << virtual_shift 273 , is_xmm_mask = right_n_bits(is_xmm_bits) << is_xmm_shift 274 , pointer_mask = right_n_bits(pointer_bits) 275 , lower_reg_mask = right_n_bits(reg_bits) 276 , no_type_mask = (int)(~(type_mask | last_use_mask | is_fpu_stack_offset_mask)) 277 }; 278 279 uintptr_t data() const { return value() >> data_shift; } 280 int lo_reg_half() const { return data() & lower_reg_mask; } 281 int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; } 282 OprKind kind_field() const { return (OprKind)(value() & kind_mask); } 283 OprSize size_field() const { return (OprSize)(value() & size_mask); } 284 285 static char type_char(BasicType t); 286 287 public: 288 enum { 289 vreg_base = ConcreteRegisterImpl::number_of_registers, 290 vreg_max = (1 << data_bits) - 1 291 }; 292 293 static inline LIR_Opr illegalOpr(); 294 295 enum OprType { 296 unknown_type = 0 << type_shift // means: not set (catch uninitialized types) 297 , int_type = 1 << type_shift 298 , long_type = 2 << type_shift 299 , object_type = 3 << type_shift 300 , address_type = 4 << type_shift 301 , float_type = 5 << type_shift 302 , double_type = 6 << type_shift 303 , metadata_type = 7 << type_shift 304 }; 305 friend OprType as_OprType(BasicType t); 306 friend BasicType as_BasicType(OprType t); 307 308 OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); } 309 OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); } 310 311 static OprSize size_for(BasicType t) { 312 switch (t) { 313 case T_LONG: 314 case T_DOUBLE: 315 return double_size; 316 break; 317 318 case T_FLOAT: 319 case T_BOOLEAN: 320 case T_CHAR: 321 case T_BYTE: 322 case T_SHORT: 323 case T_INT: 324 case T_ADDRESS: 325 case T_OBJECT: 326 case T_ARRAY: 327 case T_METADATA: 328 return single_size; 329 break; 330 331 default: 332 ShouldNotReachHere(); 333 return single_size; 334 } 335 } 336 337 338 void validate_type() const PRODUCT_RETURN; 339 340 BasicType type() const { 341 if (is_pointer()) { 342 return pointer()->type(); 343 } 344 return as_BasicType(type_field()); 345 } 346 347 348 ValueType* value_type() const { return as_ValueType(type()); } 349 350 char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); } 351 352 bool is_equal(LIR_Opr opr) const { return this == opr; } 353 // checks whether types are same 354 bool is_same_type(LIR_Opr opr) const { 355 assert(type_field() != unknown_type && 356 opr->type_field() != unknown_type, "shouldn't see unknown_type"); 357 return type_field() == opr->type_field(); 358 } 359 bool is_same_register(LIR_Opr opr) { 360 return (is_register() && opr->is_register() && 361 kind_field() == opr->kind_field() && 362 (value() & no_type_mask) == (opr->value() & no_type_mask)); 363 } 364 365 bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); } 366 bool is_illegal() const { return kind_field() == illegal_value; } 367 bool is_valid() const { return kind_field() != illegal_value; } 368 369 bool is_register() const { return is_cpu_register() || is_fpu_register(); } 370 bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); } 371 372 bool is_constant() const { return is_pointer() && pointer()->as_constant() != NULL; } 373 bool is_address() const { return is_pointer() && pointer()->as_address() != NULL; } 374 375 bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); } 376 bool is_oop() const; 377 378 // semantic for fpu- and xmm-registers: 379 // * is_float and is_double return true for xmm_registers 380 // (so is_single_fpu and is_single_xmm are true) 381 // * So you must always check for is_???_xmm prior to is_???_fpu to 382 // distinguish between fpu- and xmm-registers 383 384 bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); } 385 bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); } 386 bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); } 387 388 bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); } 389 bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); } 390 bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); } 391 bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); } 392 bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); } 393 394 bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); } 395 bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); } 396 bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); } 397 bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); } 398 bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); } 399 400 bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); } 401 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); } 402 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); } 403 404 // fast accessor functions for special bits that do not work for pointers 405 // (in this functions, the check for is_pointer() is omitted) 406 bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); } 407 bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); } 408 bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); } 409 bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; } 410 BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); } 411 412 bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; } 413 bool is_fpu_stack_offset() const { assert(is_register(), "only works for registers"); return (value() & is_fpu_stack_offset_mask) != 0; } 414 LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); } 415 LIR_Opr make_fpu_stack_offset() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | is_fpu_stack_offset_mask); } 416 417 418 int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); } 419 int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); } 420 RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); } 421 RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); } 422 RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); } 423 RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); } 424 RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); } 425 RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); } 426 RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); } 427 RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); } 428 RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); } 429 int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); } 430 431 LIR_OprPtr* pointer() const { assert(is_pointer(), "type check"); return (LIR_OprPtr*)this; } 432 LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); } 433 LIR_Address* as_address_ptr() const { return pointer()->as_address(); } 434 435 Register as_register() const; 436 Register as_register_lo() const; 437 Register as_register_hi() const; 438 439 Register as_pointer_register() { 440 #ifdef _LP64 441 if (is_double_cpu()) { 442 assert(as_register_lo() == as_register_hi(), "should be a single register"); 443 return as_register_lo(); 444 } 445 #endif 446 return as_register(); 447 } 448 449 #ifdef X86 450 XMMRegister as_xmm_float_reg() const; 451 XMMRegister as_xmm_double_reg() const; 452 // for compatibility with RInfo 453 int fpu () const { return lo_reg_half(); } 454 #endif 455 #if defined(SPARC) || defined(ARM) || defined(PPC) || defined(AARCH64) 456 FloatRegister as_float_reg () const; 457 FloatRegister as_double_reg () const; 458 #endif 459 460 jint as_jint() const { return as_constant_ptr()->as_jint(); } 461 jlong as_jlong() const { return as_constant_ptr()->as_jlong(); } 462 jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); } 463 jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); } 464 jobject as_jobject() const { return as_constant_ptr()->as_jobject(); } 465 466 void print() const PRODUCT_RETURN; 467 void print(outputStream* out) const PRODUCT_RETURN; 468 }; 469 470 471 inline LIR_OprDesc::OprType as_OprType(BasicType type) { 472 switch (type) { 473 case T_INT: return LIR_OprDesc::int_type; 474 case T_LONG: return LIR_OprDesc::long_type; 475 case T_FLOAT: return LIR_OprDesc::float_type; 476 case T_DOUBLE: return LIR_OprDesc::double_type; 477 case T_OBJECT: 478 case T_ARRAY: return LIR_OprDesc::object_type; 479 case T_ADDRESS: return LIR_OprDesc::address_type; 480 case T_METADATA: return LIR_OprDesc::metadata_type; 481 case T_ILLEGAL: // fall through 482 default: ShouldNotReachHere(); return LIR_OprDesc::unknown_type; 483 } 484 } 485 486 inline BasicType as_BasicType(LIR_OprDesc::OprType t) { 487 switch (t) { 488 case LIR_OprDesc::int_type: return T_INT; 489 case LIR_OprDesc::long_type: return T_LONG; 490 case LIR_OprDesc::float_type: return T_FLOAT; 491 case LIR_OprDesc::double_type: return T_DOUBLE; 492 case LIR_OprDesc::object_type: return T_OBJECT; 493 case LIR_OprDesc::address_type: return T_ADDRESS; 494 case LIR_OprDesc::metadata_type:return T_METADATA; 495 case LIR_OprDesc::unknown_type: // fall through 496 default: ShouldNotReachHere(); return T_ILLEGAL; 497 } 498 } 499 500 501 // LIR_Address 502 class LIR_Address: public LIR_OprPtr { 503 friend class LIR_OpVisitState; 504 505 public: 506 // NOTE: currently these must be the log2 of the scale factor (and 507 // must also be equivalent to the ScaleFactor enum in 508 // assembler_i486.hpp) 509 enum Scale { 510 times_1 = 0, 511 times_2 = 1, 512 times_4 = 2, 513 times_8 = 3 514 }; 515 516 private: 517 LIR_Opr _base; 518 LIR_Opr _index; 519 Scale _scale; 520 intx _disp; 521 BasicType _type; 522 523 public: 524 LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type): 525 _base(base) 526 , _index(index) 527 , _scale(times_1) 528 , _type(type) 529 , _disp(0) { verify(); } 530 531 LIR_Address(LIR_Opr base, intx disp, BasicType type): 532 _base(base) 533 , _index(LIR_OprDesc::illegalOpr()) 534 , _scale(times_1) 535 , _type(type) 536 , _disp(disp) { verify(); } 537 538 LIR_Address(LIR_Opr base, BasicType type): 539 _base(base) 540 , _index(LIR_OprDesc::illegalOpr()) 541 , _scale(times_1) 542 , _type(type) 543 , _disp(0) { verify(); } 544 545 #if defined(X86) || defined(ARM) || defined(AARCH64) 546 LIR_Address(LIR_Opr base, LIR_Opr index, Scale scale, intx disp, BasicType type): 547 _base(base) 548 , _index(index) 549 , _scale(scale) 550 , _type(type) 551 , _disp(disp) { verify(); } 552 #endif // X86 || ARM 553 554 LIR_Opr base() const { return _base; } 555 LIR_Opr index() const { return _index; } 556 Scale scale() const { return _scale; } 557 intx disp() const { return _disp; } 558 559 bool equals(LIR_Address* other) const { return base() == other->base() && index() == other->index() && disp() == other->disp() && scale() == other->scale(); } 560 561 virtual LIR_Address* as_address() { return this; } 562 virtual BasicType type() const { return _type; } 563 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN; 564 565 void verify0() const PRODUCT_RETURN; 566 #if defined(LIR_ADDRESS_PD_VERIFY) && !defined(PRODUCT) 567 void pd_verify() const; 568 void verify() const { pd_verify(); } 569 #else 570 void verify() const { verify0(); } 571 #endif 572 573 static Scale scale(BasicType type); 574 }; 575 576 577 // operand factory 578 class LIR_OprFact: public AllStatic { 579 public: 580 581 static LIR_Opr illegalOpr; 582 583 static LIR_Opr single_cpu(int reg) { 584 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 585 LIR_OprDesc::int_type | 586 LIR_OprDesc::cpu_register | 587 LIR_OprDesc::single_size); 588 } 589 static LIR_Opr single_cpu_oop(int reg) { 590 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 591 LIR_OprDesc::object_type | 592 LIR_OprDesc::cpu_register | 593 LIR_OprDesc::single_size); 594 } 595 static LIR_Opr single_cpu_address(int reg) { 596 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 597 LIR_OprDesc::address_type | 598 LIR_OprDesc::cpu_register | 599 LIR_OprDesc::single_size); 600 } 601 static LIR_Opr single_cpu_metadata(int reg) { 602 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 603 LIR_OprDesc::metadata_type | 604 LIR_OprDesc::cpu_register | 605 LIR_OprDesc::single_size); 606 } 607 static LIR_Opr double_cpu(int reg1, int reg2) { 608 LP64_ONLY(assert(reg1 == reg2, "must be identical")); 609 return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) | 610 (reg2 << LIR_OprDesc::reg2_shift) | 611 LIR_OprDesc::long_type | 612 LIR_OprDesc::cpu_register | 613 LIR_OprDesc::double_size); 614 } 615 616 static LIR_Opr single_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 617 LIR_OprDesc::float_type | 618 LIR_OprDesc::fpu_register | 619 LIR_OprDesc::single_size); } 620 #if defined(ARM32) 621 static LIR_Opr double_fpu(int reg1, int reg2) { return (LIR_Opr)((reg1 << LIR_OprDesc::reg1_shift) | (reg2 << LIR_OprDesc::reg2_shift) | LIR_OprDesc::double_type | LIR_OprDesc::fpu_register | LIR_OprDesc::double_size); } 622 static LIR_Opr single_softfp(int reg) { return (LIR_Opr)((reg << LIR_OprDesc::reg1_shift) | LIR_OprDesc::float_type | LIR_OprDesc::cpu_register | LIR_OprDesc::single_size); } 623 static LIR_Opr double_softfp(int reg1, int reg2) { return (LIR_Opr)((reg1 << LIR_OprDesc::reg1_shift) | (reg2 << LIR_OprDesc::reg2_shift) | LIR_OprDesc::double_type | LIR_OprDesc::cpu_register | LIR_OprDesc::double_size); } 624 #endif 625 #ifdef SPARC 626 static LIR_Opr double_fpu(int reg1, int reg2) { return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) | 627 (reg2 << LIR_OprDesc::reg2_shift) | 628 LIR_OprDesc::double_type | 629 LIR_OprDesc::fpu_register | 630 LIR_OprDesc::double_size); } 631 #endif 632 #if defined(X86) || defined(AARCH64) 633 static LIR_Opr double_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 634 (reg << LIR_OprDesc::reg2_shift) | 635 LIR_OprDesc::double_type | 636 LIR_OprDesc::fpu_register | 637 LIR_OprDesc::double_size); } 638 639 static LIR_Opr single_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 640 LIR_OprDesc::float_type | 641 LIR_OprDesc::fpu_register | 642 LIR_OprDesc::single_size | 643 LIR_OprDesc::is_xmm_mask); } 644 static LIR_Opr double_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 645 (reg << LIR_OprDesc::reg2_shift) | 646 LIR_OprDesc::double_type | 647 LIR_OprDesc::fpu_register | 648 LIR_OprDesc::double_size | 649 LIR_OprDesc::is_xmm_mask); } 650 #endif // X86 651 #ifdef PPC 652 static LIR_Opr double_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 653 (reg << LIR_OprDesc::reg2_shift) | 654 LIR_OprDesc::double_type | 655 LIR_OprDesc::fpu_register | 656 LIR_OprDesc::double_size); } 657 static LIR_Opr single_softfp(int reg) { return (LIR_Opr)((reg << LIR_OprDesc::reg1_shift) | 658 LIR_OprDesc::float_type | 659 LIR_OprDesc::cpu_register | 660 LIR_OprDesc::single_size); } 661 static LIR_Opr double_softfp(int reg1, int reg2) { return (LIR_Opr)((reg2 << LIR_OprDesc::reg1_shift) | 662 (reg1 << LIR_OprDesc::reg2_shift) | 663 LIR_OprDesc::double_type | 664 LIR_OprDesc::cpu_register | 665 LIR_OprDesc::double_size); } 666 #endif // PPC 667 668 static LIR_Opr virtual_register(int index, BasicType type) { 669 LIR_Opr res; 670 switch (type) { 671 case T_OBJECT: // fall through 672 case T_ARRAY: 673 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 674 LIR_OprDesc::object_type | 675 LIR_OprDesc::cpu_register | 676 LIR_OprDesc::single_size | 677 LIR_OprDesc::virtual_mask); 678 break; 679 680 case T_METADATA: 681 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 682 LIR_OprDesc::metadata_type| 683 LIR_OprDesc::cpu_register | 684 LIR_OprDesc::single_size | 685 LIR_OprDesc::virtual_mask); 686 break; 687 688 case T_INT: 689 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 690 LIR_OprDesc::int_type | 691 LIR_OprDesc::cpu_register | 692 LIR_OprDesc::single_size | 693 LIR_OprDesc::virtual_mask); 694 break; 695 696 case T_ADDRESS: 697 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 698 LIR_OprDesc::address_type | 699 LIR_OprDesc::cpu_register | 700 LIR_OprDesc::single_size | 701 LIR_OprDesc::virtual_mask); 702 break; 703 704 case T_LONG: 705 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 706 LIR_OprDesc::long_type | 707 LIR_OprDesc::cpu_register | 708 LIR_OprDesc::double_size | 709 LIR_OprDesc::virtual_mask); 710 break; 711 712 #ifdef __SOFTFP__ 713 case T_FLOAT: 714 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 715 LIR_OprDesc::float_type | 716 LIR_OprDesc::cpu_register | 717 LIR_OprDesc::single_size | 718 LIR_OprDesc::virtual_mask); 719 break; 720 case T_DOUBLE: 721 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 722 LIR_OprDesc::double_type | 723 LIR_OprDesc::cpu_register | 724 LIR_OprDesc::double_size | 725 LIR_OprDesc::virtual_mask); 726 break; 727 #else // __SOFTFP__ 728 case T_FLOAT: 729 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 730 LIR_OprDesc::float_type | 731 LIR_OprDesc::fpu_register | 732 LIR_OprDesc::single_size | 733 LIR_OprDesc::virtual_mask); 734 break; 735 736 case 737 T_DOUBLE: res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 738 LIR_OprDesc::double_type | 739 LIR_OprDesc::fpu_register | 740 LIR_OprDesc::double_size | 741 LIR_OprDesc::virtual_mask); 742 break; 743 #endif // __SOFTFP__ 744 default: ShouldNotReachHere(); res = illegalOpr; 745 } 746 747 #ifdef ASSERT 748 res->validate_type(); 749 assert(res->vreg_number() == index, "conversion check"); 750 assert(index >= LIR_OprDesc::vreg_base, "must start at vreg_base"); 751 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big"); 752 753 // old-style calculation; check if old and new method are equal 754 LIR_OprDesc::OprType t = as_OprType(type); 755 #ifdef __SOFTFP__ 756 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 757 t | 758 LIR_OprDesc::cpu_register | 759 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask); 760 #else // __SOFTFP__ 761 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | t | 762 ((type == T_FLOAT || type == T_DOUBLE) ? LIR_OprDesc::fpu_register : LIR_OprDesc::cpu_register) | 763 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask); 764 assert(res == old_res, "old and new method not equal"); 765 #endif // __SOFTFP__ 766 #endif // ASSERT 767 768 return res; 769 } 770 771 // 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as 772 // the index is platform independent; a double stack useing indeces 2 and 3 has always 773 // index 2. 774 static LIR_Opr stack(int index, BasicType type) { 775 LIR_Opr res; 776 switch (type) { 777 case T_OBJECT: // fall through 778 case T_ARRAY: 779 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 780 LIR_OprDesc::object_type | 781 LIR_OprDesc::stack_value | 782 LIR_OprDesc::single_size); 783 break; 784 785 case T_METADATA: 786 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 787 LIR_OprDesc::metadata_type | 788 LIR_OprDesc::stack_value | 789 LIR_OprDesc::single_size); 790 break; 791 case T_INT: 792 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 793 LIR_OprDesc::int_type | 794 LIR_OprDesc::stack_value | 795 LIR_OprDesc::single_size); 796 break; 797 798 case T_ADDRESS: 799 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 800 LIR_OprDesc::address_type | 801 LIR_OprDesc::stack_value | 802 LIR_OprDesc::single_size); 803 break; 804 805 case T_LONG: 806 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 807 LIR_OprDesc::long_type | 808 LIR_OprDesc::stack_value | 809 LIR_OprDesc::double_size); 810 break; 811 812 case T_FLOAT: 813 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 814 LIR_OprDesc::float_type | 815 LIR_OprDesc::stack_value | 816 LIR_OprDesc::single_size); 817 break; 818 case T_DOUBLE: 819 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 820 LIR_OprDesc::double_type | 821 LIR_OprDesc::stack_value | 822 LIR_OprDesc::double_size); 823 break; 824 825 default: ShouldNotReachHere(); res = illegalOpr; 826 } 827 828 #ifdef ASSERT 829 assert(index >= 0, "index must be positive"); 830 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big"); 831 832 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 833 LIR_OprDesc::stack_value | 834 as_OprType(type) | 835 LIR_OprDesc::size_for(type)); 836 assert(res == old_res, "old and new method not equal"); 837 #endif 838 839 return res; 840 } 841 842 static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); } 843 static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); } 844 static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); } 845 static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); } 846 static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); } 847 static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; } 848 static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); } 849 static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); } 850 static LIR_Opr illegal() { return (LIR_Opr)-1; } 851 static LIR_Opr addressConst(jint i) { return (LIR_Opr)(new LIR_Const(i, true)); } 852 static LIR_Opr metadataConst(Metadata* m) { return (LIR_Opr)(new LIR_Const(m)); } 853 854 static LIR_Opr value_type(ValueType* type); 855 static LIR_Opr dummy_value_type(ValueType* type); 856 }; 857 858 859 //------------------------------------------------------------------------------- 860 // LIR Instructions 861 //------------------------------------------------------------------------------- 862 // 863 // Note: 864 // - every instruction has a result operand 865 // - every instruction has an CodeEmitInfo operand (can be revisited later) 866 // - every instruction has a LIR_OpCode operand 867 // - LIR_OpN, means an instruction that has N input operands 868 // 869 // class hierarchy: 870 // 871 class LIR_Op; 872 class LIR_Op0; 873 class LIR_OpLabel; 874 class LIR_Op1; 875 class LIR_OpBranch; 876 class LIR_OpConvert; 877 class LIR_OpAllocObj; 878 class LIR_OpRoundFP; 879 class LIR_OpShenandoahWriteBarrier; 880 class LIR_Op2; 881 class LIR_OpDelay; 882 class LIR_Op3; 883 class LIR_OpAllocArray; 884 class LIR_OpCall; 885 class LIR_OpJavaCall; 886 class LIR_OpRTCall; 887 class LIR_OpArrayCopy; 888 class LIR_OpUpdateCRC32; 889 class LIR_OpLock; 890 class LIR_OpTypeCheck; 891 class LIR_OpCompareAndSwap; 892 class LIR_OpProfileCall; 893 class LIR_OpProfileType; 894 #ifdef ASSERT 895 class LIR_OpAssert; 896 #endif 897 898 // LIR operation codes 899 enum LIR_Code { 900 lir_none 901 , begin_op0 902 , lir_word_align 903 , lir_label 904 , lir_nop 905 , lir_backwardbranch_target 906 , lir_std_entry 907 , lir_osr_entry 908 , lir_build_frame 909 , lir_fpop_raw 910 , lir_24bit_FPU 911 , lir_reset_FPU 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 , end_op0 923 , begin_op1 924 , lir_fxch 925 , lir_fld 926 , lir_ffree 927 , lir_push 928 , lir_pop 929 , lir_null_check 930 , lir_return 931 , lir_leal 932 , lir_neg 933 , lir_branch 934 , lir_cond_float_branch 935 , lir_move 936 , lir_convert 937 , lir_alloc_object 938 , lir_monaddr 939 , lir_roundfp 940 , lir_safepoint 941 , lir_pack64 942 , lir_unpack64 943 , lir_unwind 944 , lir_shenandoah_wb 945 , end_op1 946 , begin_op2 947 , lir_cmp 948 , lir_cmp_l2i 949 , lir_ucmp_fd2i 950 , lir_cmp_fd2i 951 , lir_cmove 952 , lir_add 953 , lir_sub 954 , lir_mul 955 , lir_mul_strictfp 956 , lir_div 957 , lir_div_strictfp 958 , lir_rem 959 , lir_sqrt 960 , lir_abs 961 , lir_sin 962 , lir_cos 963 , lir_tan 964 , lir_log 965 , lir_log10 966 , lir_exp 967 , lir_pow 968 , lir_logic_and 969 , lir_logic_or 970 , lir_logic_xor 971 , lir_shl 972 , lir_shr 973 , lir_ushr 974 , lir_alloc_array 975 , lir_throw 976 , lir_compare_to 977 , lir_xadd 978 , lir_xchg 979 , end_op2 980 , begin_op3 981 , lir_idiv 982 , lir_irem 983 , end_op3 984 , begin_opJavaCall 985 , lir_static_call 986 , lir_optvirtual_call 987 , lir_icvirtual_call 988 , lir_virtual_call 989 , lir_dynamic_call 990 , end_opJavaCall 991 , begin_opArrayCopy 992 , lir_arraycopy 993 , end_opArrayCopy 994 , begin_opUpdateCRC32 995 , lir_updatecrc32 996 , end_opUpdateCRC32 997 , begin_opLock 998 , lir_lock 999 , lir_unlock 1000 , end_opLock 1001 , begin_delay_slot 1002 , lir_delay_slot 1003 , end_delay_slot 1004 , begin_opTypeCheck 1005 , lir_instanceof 1006 , lir_checkcast 1007 , lir_store_check 1008 , end_opTypeCheck 1009 , begin_opCompareAndSwap 1010 , lir_cas_long 1011 , lir_cas_obj 1012 , lir_cas_int 1013 , end_opCompareAndSwap 1014 , begin_opMDOProfile 1015 , lir_profile_call 1016 , lir_profile_type 1017 , end_opMDOProfile 1018 , begin_opAssert 1019 , lir_assert 1020 , end_opAssert 1021 }; 1022 1023 1024 enum LIR_Condition { 1025 lir_cond_equal 1026 , lir_cond_notEqual 1027 , lir_cond_less 1028 , lir_cond_lessEqual 1029 , lir_cond_greaterEqual 1030 , lir_cond_greater 1031 , lir_cond_belowEqual 1032 , lir_cond_aboveEqual 1033 , lir_cond_always 1034 , lir_cond_unknown = -1 1035 }; 1036 1037 1038 enum LIR_PatchCode { 1039 lir_patch_none, 1040 lir_patch_low, 1041 lir_patch_high, 1042 lir_patch_normal 1043 }; 1044 1045 1046 enum LIR_MoveKind { 1047 lir_move_normal, 1048 lir_move_volatile, 1049 lir_move_unaligned, 1050 lir_move_wide, 1051 lir_move_max_flag 1052 }; 1053 1054 1055 // -------------------------------------------------- 1056 // LIR_Op 1057 // -------------------------------------------------- 1058 class LIR_Op: public CompilationResourceObj { 1059 friend class LIR_OpVisitState; 1060 1061 #ifdef ASSERT 1062 private: 1063 const char * _file; 1064 int _line; 1065 #endif 1066 1067 protected: 1068 LIR_Opr _result; 1069 unsigned short _code; 1070 unsigned short _flags; 1071 CodeEmitInfo* _info; 1072 int _id; // value id for register allocation 1073 int _fpu_pop_count; 1074 Instruction* _source; // for debugging 1075 1076 static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN; 1077 1078 protected: 1079 static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; } 1080 1081 public: 1082 LIR_Op() 1083 : _result(LIR_OprFact::illegalOpr) 1084 , _code(lir_none) 1085 , _flags(0) 1086 , _info(NULL) 1087 #ifdef ASSERT 1088 , _file(NULL) 1089 , _line(0) 1090 #endif 1091 , _fpu_pop_count(0) 1092 , _source(NULL) 1093 , _id(-1) {} 1094 1095 LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info) 1096 : _result(result) 1097 , _code(code) 1098 , _flags(0) 1099 , _info(info) 1100 #ifdef ASSERT 1101 , _file(NULL) 1102 , _line(0) 1103 #endif 1104 , _fpu_pop_count(0) 1105 , _source(NULL) 1106 , _id(-1) {} 1107 1108 CodeEmitInfo* info() const { return _info; } 1109 LIR_Code code() const { return (LIR_Code)_code; } 1110 LIR_Opr result_opr() const { return _result; } 1111 void set_result_opr(LIR_Opr opr) { _result = opr; } 1112 1113 #ifdef ASSERT 1114 void set_file_and_line(const char * file, int line) { 1115 _file = file; 1116 _line = line; 1117 } 1118 #endif 1119 1120 virtual const char * name() const PRODUCT_RETURN0; 1121 1122 int id() const { return _id; } 1123 void set_id(int id) { _id = id; } 1124 1125 // FPU stack simulation helpers -- only used on Intel 1126 void set_fpu_pop_count(int count) { assert(count >= 0 && count <= 1, "currently only 0 and 1 are valid"); _fpu_pop_count = count; } 1127 int fpu_pop_count() const { return _fpu_pop_count; } 1128 bool pop_fpu_stack() { return _fpu_pop_count > 0; } 1129 1130 Instruction* source() const { return _source; } 1131 void set_source(Instruction* ins) { _source = ins; } 1132 1133 virtual void emit_code(LIR_Assembler* masm) = 0; 1134 virtual void print_instr(outputStream* out) const = 0; 1135 virtual void print_on(outputStream* st) const PRODUCT_RETURN; 1136 1137 virtual bool is_patching() { return false; } 1138 virtual LIR_OpCall* as_OpCall() { return NULL; } 1139 virtual LIR_OpJavaCall* as_OpJavaCall() { return NULL; } 1140 virtual LIR_OpLabel* as_OpLabel() { return NULL; } 1141 virtual LIR_OpDelay* as_OpDelay() { return NULL; } 1142 virtual LIR_OpLock* as_OpLock() { return NULL; } 1143 virtual LIR_OpAllocArray* as_OpAllocArray() { return NULL; } 1144 virtual LIR_OpAllocObj* as_OpAllocObj() { return NULL; } 1145 virtual LIR_OpRoundFP* as_OpRoundFP() { return NULL; } 1146 virtual LIR_OpBranch* as_OpBranch() { return NULL; } 1147 virtual LIR_OpRTCall* as_OpRTCall() { return NULL; } 1148 virtual LIR_OpConvert* as_OpConvert() { return NULL; } 1149 virtual LIR_Op0* as_Op0() { return NULL; } 1150 virtual LIR_Op1* as_Op1() { return NULL; } 1151 virtual LIR_Op2* as_Op2() { return NULL; } 1152 virtual LIR_Op3* as_Op3() { return NULL; } 1153 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return NULL; } 1154 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return NULL; } 1155 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return NULL; } 1156 virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return NULL; } 1157 virtual LIR_OpProfileCall* as_OpProfileCall() { return NULL; } 1158 virtual LIR_OpProfileType* as_OpProfileType() { return NULL; } 1159 virtual LIR_OpShenandoahWriteBarrier* as_OpShenandoahWriteBarrier() { return NULL; } 1160 #ifdef ASSERT 1161 virtual LIR_OpAssert* as_OpAssert() { return NULL; } 1162 #endif 1163 1164 virtual void verify() const {} 1165 }; 1166 1167 // for calls 1168 class LIR_OpCall: public LIR_Op { 1169 friend class LIR_OpVisitState; 1170 1171 protected: 1172 address _addr; 1173 LIR_OprList* _arguments; 1174 protected: 1175 LIR_OpCall(LIR_Code code, address addr, LIR_Opr result, 1176 LIR_OprList* arguments, CodeEmitInfo* info = NULL) 1177 : LIR_Op(code, result, info) 1178 , _arguments(arguments) 1179 , _addr(addr) {} 1180 1181 public: 1182 address addr() const { return _addr; } 1183 const LIR_OprList* arguments() const { return _arguments; } 1184 virtual LIR_OpCall* as_OpCall() { return this; } 1185 }; 1186 1187 1188 // -------------------------------------------------- 1189 // LIR_OpJavaCall 1190 // -------------------------------------------------- 1191 class LIR_OpJavaCall: public LIR_OpCall { 1192 friend class LIR_OpVisitState; 1193 1194 private: 1195 ciMethod* _method; 1196 LIR_Opr _receiver; 1197 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. 1198 1199 public: 1200 LIR_OpJavaCall(LIR_Code code, ciMethod* method, 1201 LIR_Opr receiver, LIR_Opr result, 1202 address addr, LIR_OprList* arguments, 1203 CodeEmitInfo* info) 1204 : LIR_OpCall(code, addr, result, arguments, info) 1205 , _receiver(receiver) 1206 , _method(method) 1207 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr) 1208 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); } 1209 1210 LIR_OpJavaCall(LIR_Code code, ciMethod* method, 1211 LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset, 1212 LIR_OprList* arguments, CodeEmitInfo* info) 1213 : LIR_OpCall(code, (address)vtable_offset, result, arguments, info) 1214 , _receiver(receiver) 1215 , _method(method) 1216 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr) 1217 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); } 1218 1219 LIR_Opr receiver() const { return _receiver; } 1220 ciMethod* method() const { return _method; } 1221 1222 // JSR 292 support. 1223 bool is_invokedynamic() const { return code() == lir_dynamic_call; } 1224 bool is_method_handle_invoke() const { 1225 return method()->is_compiled_lambda_form() || // Java-generated lambda form 1226 method()->is_method_handle_intrinsic(); // JVM-generated MH intrinsic 1227 } 1228 1229 intptr_t vtable_offset() const { 1230 assert(_code == lir_virtual_call, "only have vtable for real vcall"); 1231 return (intptr_t) addr(); 1232 } 1233 1234 virtual void emit_code(LIR_Assembler* masm); 1235 virtual LIR_OpJavaCall* as_OpJavaCall() { return this; } 1236 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1237 }; 1238 1239 // -------------------------------------------------- 1240 // LIR_OpLabel 1241 // -------------------------------------------------- 1242 // Location where a branch can continue 1243 class LIR_OpLabel: public LIR_Op { 1244 friend class LIR_OpVisitState; 1245 1246 private: 1247 Label* _label; 1248 public: 1249 LIR_OpLabel(Label* lbl) 1250 : LIR_Op(lir_label, LIR_OprFact::illegalOpr, NULL) 1251 , _label(lbl) {} 1252 Label* label() const { return _label; } 1253 1254 virtual void emit_code(LIR_Assembler* masm); 1255 virtual LIR_OpLabel* as_OpLabel() { return this; } 1256 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1257 }; 1258 1259 // LIR_OpArrayCopy 1260 class LIR_OpArrayCopy: public LIR_Op { 1261 friend class LIR_OpVisitState; 1262 1263 private: 1264 ArrayCopyStub* _stub; 1265 LIR_Opr _src; 1266 LIR_Opr _src_pos; 1267 LIR_Opr _dst; 1268 LIR_Opr _dst_pos; 1269 LIR_Opr _length; 1270 LIR_Opr _tmp; 1271 ciArrayKlass* _expected_type; 1272 int _flags; 1273 1274 public: 1275 enum Flags { 1276 src_null_check = 1 << 0, 1277 dst_null_check = 1 << 1, 1278 src_pos_positive_check = 1 << 2, 1279 dst_pos_positive_check = 1 << 3, 1280 length_positive_check = 1 << 4, 1281 src_range_check = 1 << 5, 1282 dst_range_check = 1 << 6, 1283 type_check = 1 << 7, 1284 overlapping = 1 << 8, 1285 unaligned = 1 << 9, 1286 src_objarray = 1 << 10, 1287 dst_objarray = 1 << 11, 1288 all_flags = (1 << 12) - 1 1289 }; 1290 1291 LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp, 1292 ciArrayKlass* expected_type, int flags, CodeEmitInfo* info); 1293 1294 LIR_Opr src() const { return _src; } 1295 LIR_Opr src_pos() const { return _src_pos; } 1296 LIR_Opr dst() const { return _dst; } 1297 LIR_Opr dst_pos() const { return _dst_pos; } 1298 LIR_Opr length() const { return _length; } 1299 LIR_Opr tmp() const { return _tmp; } 1300 int flags() const { return _flags; } 1301 ciArrayKlass* expected_type() const { return _expected_type; } 1302 ArrayCopyStub* stub() const { return _stub; } 1303 1304 virtual void emit_code(LIR_Assembler* masm); 1305 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; } 1306 void print_instr(outputStream* out) const PRODUCT_RETURN; 1307 }; 1308 1309 // LIR_OpUpdateCRC32 1310 class LIR_OpUpdateCRC32: public LIR_Op { 1311 friend class LIR_OpVisitState; 1312 1313 private: 1314 LIR_Opr _crc; 1315 LIR_Opr _val; 1316 1317 public: 1318 1319 LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res); 1320 1321 LIR_Opr crc() const { return _crc; } 1322 LIR_Opr val() const { return _val; } 1323 1324 virtual void emit_code(LIR_Assembler* masm); 1325 virtual LIR_OpUpdateCRC32* as_OpUpdateCRC32() { return this; } 1326 void print_instr(outputStream* out) const PRODUCT_RETURN; 1327 }; 1328 1329 // -------------------------------------------------- 1330 // LIR_Op0 1331 // -------------------------------------------------- 1332 class LIR_Op0: public LIR_Op { 1333 friend class LIR_OpVisitState; 1334 1335 public: 1336 LIR_Op0(LIR_Code code) 1337 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) { assert(is_in_range(code, begin_op0, end_op0), "code check"); } 1338 LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = NULL) 1339 : LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); } 1340 1341 virtual void emit_code(LIR_Assembler* masm); 1342 virtual LIR_Op0* as_Op0() { return this; } 1343 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1344 }; 1345 1346 1347 // -------------------------------------------------- 1348 // LIR_Op1 1349 // -------------------------------------------------- 1350 1351 class LIR_Op1: public LIR_Op { 1352 friend class LIR_OpVisitState; 1353 1354 protected: 1355 LIR_Opr _opr; // input operand 1356 BasicType _type; // Operand types 1357 LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?) 1358 1359 static void print_patch_code(outputStream* out, LIR_PatchCode code); 1360 1361 void set_kind(LIR_MoveKind kind) { 1362 assert(code() == lir_move, "must be"); 1363 _flags = kind; 1364 } 1365 1366 public: 1367 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result = LIR_OprFact::illegalOpr, BasicType type = T_ILLEGAL, LIR_PatchCode patch = lir_patch_none, CodeEmitInfo* info = NULL) 1368 : LIR_Op(code, result, info) 1369 , _opr(opr) 1370 , _patch(patch) 1371 , _type(type) { assert(is_in_range(code, begin_op1, end_op1), "code check"); } 1372 1373 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind) 1374 : LIR_Op(code, result, info) 1375 , _opr(opr) 1376 , _patch(patch) 1377 , _type(type) { 1378 assert(code == lir_move, "must be"); 1379 set_kind(kind); 1380 } 1381 1382 LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info) 1383 : LIR_Op(code, LIR_OprFact::illegalOpr, info) 1384 , _opr(opr) 1385 , _patch(lir_patch_none) 1386 , _type(T_ILLEGAL) { assert(is_in_range(code, begin_op1, end_op1), "code check"); } 1387 1388 LIR_Opr in_opr() const { return _opr; } 1389 LIR_PatchCode patch_code() const { return _patch; } 1390 BasicType type() const { return _type; } 1391 1392 LIR_MoveKind move_kind() const { 1393 assert(code() == lir_move, "must be"); 1394 return (LIR_MoveKind)_flags; 1395 } 1396 1397 virtual bool is_patching() { return _patch != lir_patch_none; } 1398 virtual void emit_code(LIR_Assembler* masm); 1399 virtual LIR_Op1* as_Op1() { return this; } 1400 virtual const char * name() const PRODUCT_RETURN0; 1401 1402 void set_in_opr(LIR_Opr opr) { _opr = opr; } 1403 1404 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1405 virtual void verify() const; 1406 }; 1407 1408 1409 // for runtime calls 1410 class LIR_OpRTCall: public LIR_OpCall { 1411 friend class LIR_OpVisitState; 1412 1413 private: 1414 LIR_Opr _tmp; 1415 public: 1416 LIR_OpRTCall(address addr, LIR_Opr tmp, 1417 LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = NULL) 1418 : LIR_OpCall(lir_rtcall, addr, result, arguments, info) 1419 , _tmp(tmp) {} 1420 1421 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1422 virtual void emit_code(LIR_Assembler* masm); 1423 virtual LIR_OpRTCall* as_OpRTCall() { return this; } 1424 1425 LIR_Opr tmp() const { return _tmp; } 1426 1427 virtual void verify() const; 1428 }; 1429 1430 1431 class LIR_OpBranch: public LIR_Op { 1432 friend class LIR_OpVisitState; 1433 1434 private: 1435 LIR_Condition _cond; 1436 BasicType _type; 1437 Label* _label; 1438 BlockBegin* _block; // if this is a branch to a block, this is the block 1439 BlockBegin* _ublock; // if this is a float-branch, this is the unorderd block 1440 CodeStub* _stub; // if this is a branch to a stub, this is the stub 1441 1442 public: 1443 LIR_OpBranch(LIR_Condition cond, BasicType type, Label* lbl) 1444 : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*) NULL) 1445 , _cond(cond) 1446 , _type(type) 1447 , _label(lbl) 1448 , _block(NULL) 1449 , _ublock(NULL) 1450 , _stub(NULL) { } 1451 1452 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block); 1453 LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub); 1454 1455 // for unordered comparisons 1456 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock); 1457 1458 LIR_Condition cond() const { return _cond; } 1459 BasicType type() const { return _type; } 1460 Label* label() const { return _label; } 1461 BlockBegin* block() const { return _block; } 1462 BlockBegin* ublock() const { return _ublock; } 1463 CodeStub* stub() const { return _stub; } 1464 1465 void change_block(BlockBegin* b); 1466 void change_ublock(BlockBegin* b); 1467 void negate_cond(); 1468 1469 virtual void emit_code(LIR_Assembler* masm); 1470 virtual LIR_OpBranch* as_OpBranch() { return this; } 1471 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1472 }; 1473 1474 class LIR_OpShenandoahWriteBarrier : public LIR_Op1 { 1475 friend class LIR_OpVisitState; 1476 1477 private: 1478 bool _need_null_check; 1479 LIR_Opr _tmp1; 1480 LIR_Opr _tmp2; 1481 1482 public: 1483 LIR_OpShenandoahWriteBarrier(LIR_Opr obj, LIR_Opr result, LIR_Opr tmp1, LIR_Opr tmp2, CodeEmitInfo* info, bool need_null_check) : LIR_Op1(lir_shenandoah_wb, obj, result, T_OBJECT, lir_patch_none, info), _tmp1(tmp1), _tmp2(tmp2), _need_null_check(need_null_check) { 1484 } 1485 LIR_Opr tmp1_opr() const { return _tmp1; } 1486 LIR_Opr tmp2_opr() const { return _tmp2; } 1487 bool need_null_check() const { return _need_null_check; } 1488 virtual void emit_code(LIR_Assembler* masm); 1489 virtual LIR_OpShenandoahWriteBarrier* as_OpShenandoahWriteBarrier() { return this; } 1490 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1491 1492 }; 1493 1494 class ConversionStub; 1495 1496 class LIR_OpConvert: public LIR_Op1 { 1497 friend class LIR_OpVisitState; 1498 1499 private: 1500 Bytecodes::Code _bytecode; 1501 ConversionStub* _stub; 1502 #ifdef PPC 1503 LIR_Opr _tmp1; 1504 LIR_Opr _tmp2; 1505 #endif 1506 1507 public: 1508 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub) 1509 : LIR_Op1(lir_convert, opr, result) 1510 , _stub(stub) 1511 #ifdef PPC 1512 , _tmp1(LIR_OprDesc::illegalOpr()) 1513 , _tmp2(LIR_OprDesc::illegalOpr()) 1514 #endif 1515 , _bytecode(code) {} 1516 1517 #ifdef PPC 1518 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub 1519 ,LIR_Opr tmp1, LIR_Opr tmp2) 1520 : LIR_Op1(lir_convert, opr, result) 1521 , _stub(stub) 1522 , _tmp1(tmp1) 1523 , _tmp2(tmp2) 1524 , _bytecode(code) {} 1525 #endif 1526 1527 Bytecodes::Code bytecode() const { return _bytecode; } 1528 ConversionStub* stub() const { return _stub; } 1529 #ifdef PPC 1530 LIR_Opr tmp1() const { return _tmp1; } 1531 LIR_Opr tmp2() const { return _tmp2; } 1532 #endif 1533 1534 virtual void emit_code(LIR_Assembler* masm); 1535 virtual LIR_OpConvert* as_OpConvert() { return this; } 1536 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1537 1538 static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN; 1539 }; 1540 1541 1542 // LIR_OpAllocObj 1543 class LIR_OpAllocObj : public LIR_Op1 { 1544 friend class LIR_OpVisitState; 1545 1546 private: 1547 LIR_Opr _tmp1; 1548 LIR_Opr _tmp2; 1549 LIR_Opr _tmp3; 1550 LIR_Opr _tmp4; 1551 int _hdr_size; 1552 int _obj_size; 1553 CodeStub* _stub; 1554 bool _init_check; 1555 1556 public: 1557 LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result, 1558 LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4, 1559 int hdr_size, int obj_size, bool init_check, CodeStub* stub) 1560 : LIR_Op1(lir_alloc_object, klass, result) 1561 , _tmp1(t1) 1562 , _tmp2(t2) 1563 , _tmp3(t3) 1564 , _tmp4(t4) 1565 , _hdr_size(hdr_size) 1566 , _obj_size(obj_size) 1567 , _init_check(init_check) 1568 , _stub(stub) { } 1569 1570 LIR_Opr klass() const { return in_opr(); } 1571 LIR_Opr obj() const { return result_opr(); } 1572 LIR_Opr tmp1() const { return _tmp1; } 1573 LIR_Opr tmp2() const { return _tmp2; } 1574 LIR_Opr tmp3() const { return _tmp3; } 1575 LIR_Opr tmp4() const { return _tmp4; } 1576 int header_size() const { return _hdr_size; } 1577 int object_size() const { return _obj_size; } 1578 bool init_check() const { return _init_check; } 1579 CodeStub* stub() const { return _stub; } 1580 1581 virtual void emit_code(LIR_Assembler* masm); 1582 virtual LIR_OpAllocObj * as_OpAllocObj () { return this; } 1583 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1584 }; 1585 1586 1587 // LIR_OpRoundFP 1588 class LIR_OpRoundFP : public LIR_Op1 { 1589 friend class LIR_OpVisitState; 1590 1591 private: 1592 LIR_Opr _tmp; 1593 1594 public: 1595 LIR_OpRoundFP(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) 1596 : LIR_Op1(lir_roundfp, reg, result) 1597 , _tmp(stack_loc_temp) {} 1598 1599 LIR_Opr tmp() const { return _tmp; } 1600 virtual LIR_OpRoundFP* as_OpRoundFP() { return this; } 1601 void print_instr(outputStream* out) const PRODUCT_RETURN; 1602 }; 1603 1604 // LIR_OpTypeCheck 1605 class LIR_OpTypeCheck: public LIR_Op { 1606 friend class LIR_OpVisitState; 1607 1608 private: 1609 LIR_Opr _object; 1610 LIR_Opr _array; 1611 ciKlass* _klass; 1612 LIR_Opr _tmp1; 1613 LIR_Opr _tmp2; 1614 LIR_Opr _tmp3; 1615 bool _fast_check; 1616 CodeEmitInfo* _info_for_patch; 1617 CodeEmitInfo* _info_for_exception; 1618 CodeStub* _stub; 1619 ciMethod* _profiled_method; 1620 int _profiled_bci; 1621 bool _should_profile; 1622 1623 public: 1624 LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass, 1625 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, 1626 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub); 1627 LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array, 1628 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception); 1629 1630 LIR_Opr object() const { return _object; } 1631 LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; } 1632 LIR_Opr tmp1() const { return _tmp1; } 1633 LIR_Opr tmp2() const { return _tmp2; } 1634 LIR_Opr tmp3() const { return _tmp3; } 1635 ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; } 1636 bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; } 1637 CodeEmitInfo* info_for_patch() const { return _info_for_patch; } 1638 CodeEmitInfo* info_for_exception() const { return _info_for_exception; } 1639 CodeStub* stub() const { return _stub; } 1640 1641 // MethodData* profiling 1642 void set_profiled_method(ciMethod *method) { _profiled_method = method; } 1643 void set_profiled_bci(int bci) { _profiled_bci = bci; } 1644 void set_should_profile(bool b) { _should_profile = b; } 1645 ciMethod* profiled_method() const { return _profiled_method; } 1646 int profiled_bci() const { return _profiled_bci; } 1647 bool should_profile() const { return _should_profile; } 1648 1649 virtual bool is_patching() { return _info_for_patch != NULL; } 1650 virtual void emit_code(LIR_Assembler* masm); 1651 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; } 1652 void print_instr(outputStream* out) const PRODUCT_RETURN; 1653 }; 1654 1655 // LIR_Op2 1656 class LIR_Op2: public LIR_Op { 1657 friend class LIR_OpVisitState; 1658 1659 int _fpu_stack_size; // for sin/cos implementation on Intel 1660 1661 protected: 1662 LIR_Opr _opr1; 1663 LIR_Opr _opr2; 1664 BasicType _type; 1665 LIR_Opr _tmp1; 1666 LIR_Opr _tmp2; 1667 LIR_Opr _tmp3; 1668 LIR_Opr _tmp4; 1669 LIR_Opr _tmp5; 1670 LIR_Condition _condition; 1671 1672 void verify() const; 1673 1674 public: 1675 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = NULL) 1676 : LIR_Op(code, LIR_OprFact::illegalOpr, info) 1677 , _opr1(opr1) 1678 , _opr2(opr2) 1679 , _type(T_ILLEGAL) 1680 , _condition(condition) 1681 , _fpu_stack_size(0) 1682 , _tmp1(LIR_OprFact::illegalOpr) 1683 , _tmp2(LIR_OprFact::illegalOpr) 1684 , _tmp3(LIR_OprFact::illegalOpr) 1685 , _tmp4(LIR_OprFact::illegalOpr) 1686 , _tmp5(LIR_OprFact::illegalOpr) { 1687 assert(code == lir_cmp || code == lir_assert, "code check"); 1688 } 1689 1690 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, BasicType type) 1691 : LIR_Op(code, result, NULL) 1692 , _opr1(opr1) 1693 , _opr2(opr2) 1694 , _type(type) 1695 , _condition(condition) 1696 , _fpu_stack_size(0) 1697 , _tmp1(LIR_OprFact::illegalOpr) 1698 , _tmp2(LIR_OprFact::illegalOpr) 1699 , _tmp3(LIR_OprFact::illegalOpr) 1700 , _tmp4(LIR_OprFact::illegalOpr) 1701 , _tmp5(LIR_OprFact::illegalOpr) { 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 = NULL, BasicType type = T_ILLEGAL) 1708 : LIR_Op(code, result, info) 1709 , _opr1(opr1) 1710 , _opr2(opr2) 1711 , _type(type) 1712 , _condition(lir_cond_unknown) 1713 , _fpu_stack_size(0) 1714 , _tmp1(LIR_OprFact::illegalOpr) 1715 , _tmp2(LIR_OprFact::illegalOpr) 1716 , _tmp3(LIR_OprFact::illegalOpr) 1717 , _tmp4(LIR_OprFact::illegalOpr) 1718 , _tmp5(LIR_OprFact::illegalOpr) { 1719 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check"); 1720 } 1721 1722 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp1, LIR_Opr tmp2 = LIR_OprFact::illegalOpr, 1723 LIR_Opr tmp3 = LIR_OprFact::illegalOpr, LIR_Opr tmp4 = LIR_OprFact::illegalOpr, LIR_Opr tmp5 = LIR_OprFact::illegalOpr) 1724 : LIR_Op(code, result, NULL) 1725 , _opr1(opr1) 1726 , _opr2(opr2) 1727 , _type(T_ILLEGAL) 1728 , _condition(lir_cond_unknown) 1729 , _fpu_stack_size(0) 1730 , _tmp1(tmp1) 1731 , _tmp2(tmp2) 1732 , _tmp3(tmp3) 1733 , _tmp4(tmp4) 1734 , _tmp5(tmp5) { 1735 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check"); 1736 } 1737 1738 LIR_Opr in_opr1() const { return _opr1; } 1739 LIR_Opr in_opr2() const { return _opr2; } 1740 BasicType type() const { return _type; } 1741 LIR_Opr tmp1_opr() const { return _tmp1; } 1742 LIR_Opr tmp2_opr() const { return _tmp2; } 1743 LIR_Opr tmp3_opr() const { return _tmp3; } 1744 LIR_Opr tmp4_opr() const { return _tmp4; } 1745 LIR_Opr tmp5_opr() const { return _tmp5; } 1746 LIR_Condition condition() const { 1747 assert(code() == lir_cmp || code() == lir_cmove || code() == lir_assert, "only valid for cmp and cmove and assert"); return _condition; 1748 } 1749 void set_condition(LIR_Condition condition) { 1750 assert(code() == lir_cmp || code() == lir_cmove, "only valid for cmp and cmove"); _condition = condition; 1751 } 1752 1753 void set_fpu_stack_size(int size) { _fpu_stack_size = size; } 1754 int fpu_stack_size() const { return _fpu_stack_size; } 1755 1756 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; } 1757 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; } 1758 1759 virtual void emit_code(LIR_Assembler* masm); 1760 virtual LIR_Op2* as_Op2() { return this; } 1761 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1762 }; 1763 1764 class LIR_OpAllocArray : public LIR_Op { 1765 friend class LIR_OpVisitState; 1766 1767 private: 1768 LIR_Opr _klass; 1769 LIR_Opr _len; 1770 LIR_Opr _tmp1; 1771 LIR_Opr _tmp2; 1772 LIR_Opr _tmp3; 1773 LIR_Opr _tmp4; 1774 BasicType _type; 1775 CodeStub* _stub; 1776 1777 public: 1778 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) 1779 : LIR_Op(lir_alloc_array, result, NULL) 1780 , _klass(klass) 1781 , _len(len) 1782 , _tmp1(t1) 1783 , _tmp2(t2) 1784 , _tmp3(t3) 1785 , _tmp4(t4) 1786 , _type(type) 1787 , _stub(stub) {} 1788 1789 LIR_Opr klass() const { return _klass; } 1790 LIR_Opr len() const { return _len; } 1791 LIR_Opr obj() const { return result_opr(); } 1792 LIR_Opr tmp1() const { return _tmp1; } 1793 LIR_Opr tmp2() const { return _tmp2; } 1794 LIR_Opr tmp3() const { return _tmp3; } 1795 LIR_Opr tmp4() const { return _tmp4; } 1796 BasicType type() const { return _type; } 1797 CodeStub* stub() const { return _stub; } 1798 1799 virtual void emit_code(LIR_Assembler* masm); 1800 virtual LIR_OpAllocArray * as_OpAllocArray () { return this; } 1801 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1802 }; 1803 1804 1805 class LIR_Op3: public LIR_Op { 1806 friend class LIR_OpVisitState; 1807 1808 private: 1809 LIR_Opr _opr1; 1810 LIR_Opr _opr2; 1811 LIR_Opr _opr3; 1812 public: 1813 LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = NULL) 1814 : LIR_Op(code, result, info) 1815 , _opr1(opr1) 1816 , _opr2(opr2) 1817 , _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); } 1818 LIR_Opr in_opr1() const { return _opr1; } 1819 LIR_Opr in_opr2() const { return _opr2; } 1820 LIR_Opr in_opr3() const { return _opr3; } 1821 1822 virtual void emit_code(LIR_Assembler* masm); 1823 virtual LIR_Op3* as_Op3() { return this; } 1824 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1825 }; 1826 1827 1828 //-------------------------------- 1829 class LabelObj: public CompilationResourceObj { 1830 private: 1831 Label _label; 1832 public: 1833 LabelObj() {} 1834 Label* label() { return &_label; } 1835 }; 1836 1837 1838 class LIR_OpLock: public LIR_Op { 1839 friend class LIR_OpVisitState; 1840 1841 private: 1842 LIR_Opr _hdr; 1843 LIR_Opr _obj; 1844 LIR_Opr _lock; 1845 LIR_Opr _scratch; 1846 CodeStub* _stub; 1847 public: 1848 LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info) 1849 : LIR_Op(code, LIR_OprFact::illegalOpr, info) 1850 , _hdr(hdr) 1851 , _obj(obj) 1852 , _lock(lock) 1853 , _scratch(scratch) 1854 , _stub(stub) {} 1855 1856 LIR_Opr hdr_opr() const { return _hdr; } 1857 LIR_Opr obj_opr() const { return _obj; } 1858 LIR_Opr lock_opr() const { return _lock; } 1859 LIR_Opr scratch_opr() const { return _scratch; } 1860 CodeStub* stub() const { return _stub; } 1861 1862 virtual void emit_code(LIR_Assembler* masm); 1863 virtual LIR_OpLock* as_OpLock() { return this; } 1864 void print_instr(outputStream* out) const PRODUCT_RETURN; 1865 }; 1866 1867 1868 class LIR_OpDelay: public LIR_Op { 1869 friend class LIR_OpVisitState; 1870 1871 private: 1872 LIR_Op* _op; 1873 1874 public: 1875 LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info): 1876 LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info), 1877 _op(op) { 1878 assert(op->code() == lir_nop || LIRFillDelaySlots, "should be filling with nops"); 1879 } 1880 virtual void emit_code(LIR_Assembler* masm); 1881 virtual LIR_OpDelay* as_OpDelay() { return this; } 1882 void print_instr(outputStream* out) const PRODUCT_RETURN; 1883 LIR_Op* delay_op() const { return _op; } 1884 CodeEmitInfo* call_info() const { return info(); } 1885 }; 1886 1887 #ifdef ASSERT 1888 // LIR_OpAssert 1889 class LIR_OpAssert : public LIR_Op2 { 1890 friend class LIR_OpVisitState; 1891 1892 private: 1893 const char* _msg; 1894 bool _halt; 1895 1896 public: 1897 LIR_OpAssert(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, const char* msg, bool halt) 1898 : LIR_Op2(lir_assert, condition, opr1, opr2) 1899 , _halt(halt) 1900 , _msg(msg) { 1901 } 1902 1903 const char* msg() const { return _msg; } 1904 bool halt() const { return _halt; } 1905 1906 virtual void emit_code(LIR_Assembler* masm); 1907 virtual LIR_OpAssert* as_OpAssert() { return this; } 1908 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1909 }; 1910 #endif 1911 1912 // LIR_OpCompareAndSwap 1913 class LIR_OpCompareAndSwap : public LIR_Op { 1914 friend class LIR_OpVisitState; 1915 1916 private: 1917 LIR_Opr _addr; 1918 LIR_Opr _cmp_value; 1919 LIR_Opr _new_value; 1920 LIR_Opr _tmp1; 1921 LIR_Opr _tmp2; 1922 1923 public: 1924 LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 1925 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) 1926 : LIR_Op(code, result, NULL) // no result, no info 1927 , _addr(addr) 1928 , _cmp_value(cmp_value) 1929 , _new_value(new_value) 1930 , _tmp1(t1) 1931 , _tmp2(t2) { } 1932 1933 LIR_Opr addr() const { return _addr; } 1934 LIR_Opr cmp_value() const { return _cmp_value; } 1935 LIR_Opr new_value() const { return _new_value; } 1936 LIR_Opr tmp1() const { return _tmp1; } 1937 LIR_Opr tmp2() const { return _tmp2; } 1938 1939 virtual void emit_code(LIR_Assembler* masm); 1940 virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; } 1941 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1942 }; 1943 1944 // LIR_OpProfileCall 1945 class LIR_OpProfileCall : public LIR_Op { 1946 friend class LIR_OpVisitState; 1947 1948 private: 1949 ciMethod* _profiled_method; 1950 int _profiled_bci; 1951 ciMethod* _profiled_callee; 1952 LIR_Opr _mdo; 1953 LIR_Opr _recv; 1954 LIR_Opr _tmp1; 1955 ciKlass* _known_holder; 1956 1957 public: 1958 // Destroys recv 1959 LIR_OpProfileCall(ciMethod* profiled_method, int profiled_bci, ciMethod* profiled_callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* known_holder) 1960 : LIR_Op(lir_profile_call, LIR_OprFact::illegalOpr, NULL) // no result, no info 1961 , _profiled_method(profiled_method) 1962 , _profiled_bci(profiled_bci) 1963 , _profiled_callee(profiled_callee) 1964 , _mdo(mdo) 1965 , _recv(recv) 1966 , _tmp1(t1) 1967 , _known_holder(known_holder) { } 1968 1969 ciMethod* profiled_method() const { return _profiled_method; } 1970 int profiled_bci() const { return _profiled_bci; } 1971 ciMethod* profiled_callee() const { return _profiled_callee; } 1972 LIR_Opr mdo() const { return _mdo; } 1973 LIR_Opr recv() const { return _recv; } 1974 LIR_Opr tmp1() const { return _tmp1; } 1975 ciKlass* known_holder() const { return _known_holder; } 1976 1977 virtual void emit_code(LIR_Assembler* masm); 1978 virtual LIR_OpProfileCall* as_OpProfileCall() { return this; } 1979 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1980 }; 1981 1982 // LIR_OpProfileType 1983 class LIR_OpProfileType : public LIR_Op { 1984 friend class LIR_OpVisitState; 1985 1986 private: 1987 LIR_Opr _mdp; 1988 LIR_Opr _obj; 1989 LIR_Opr _tmp; 1990 ciKlass* _exact_klass; // non NULL if we know the klass statically (no need to load it from _obj) 1991 intptr_t _current_klass; // what the profiling currently reports 1992 bool _not_null; // true if we know statically that _obj cannot be null 1993 bool _no_conflict; // true if we're profling parameters, _exact_klass is not NULL and we know 1994 // _exact_klass it the only possible type for this parameter in any context. 1995 1996 public: 1997 // Destroys recv 1998 LIR_OpProfileType(LIR_Opr mdp, LIR_Opr obj, ciKlass* exact_klass, intptr_t current_klass, LIR_Opr tmp, bool not_null, bool no_conflict) 1999 : LIR_Op(lir_profile_type, LIR_OprFact::illegalOpr, NULL) // no result, no info 2000 , _mdp(mdp) 2001 , _obj(obj) 2002 , _exact_klass(exact_klass) 2003 , _current_klass(current_klass) 2004 , _tmp(tmp) 2005 , _not_null(not_null) 2006 , _no_conflict(no_conflict) { } 2007 2008 LIR_Opr mdp() const { return _mdp; } 2009 LIR_Opr obj() const { return _obj; } 2010 LIR_Opr tmp() const { return _tmp; } 2011 ciKlass* exact_klass() const { return _exact_klass; } 2012 intptr_t current_klass() const { return _current_klass; } 2013 bool not_null() const { return _not_null; } 2014 bool no_conflict() const { return _no_conflict; } 2015 2016 virtual void emit_code(LIR_Assembler* masm); 2017 virtual LIR_OpProfileType* as_OpProfileType() { return this; } 2018 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 2019 }; 2020 2021 class LIR_InsertionBuffer; 2022 2023 //--------------------------------LIR_List--------------------------------------------------- 2024 // Maintains a list of LIR instructions (one instance of LIR_List per basic block) 2025 // The LIR instructions are appended by the LIR_List class itself; 2026 // 2027 // Notes: 2028 // - all offsets are(should be) in bytes 2029 // - local positions are specified with an offset, with offset 0 being local 0 2030 2031 class LIR_List: public CompilationResourceObj { 2032 private: 2033 LIR_OpList _operations; 2034 2035 Compilation* _compilation; 2036 #ifndef PRODUCT 2037 BlockBegin* _block; 2038 #endif 2039 #ifdef ASSERT 2040 const char * _file; 2041 int _line; 2042 #endif 2043 2044 void append(LIR_Op* op) { 2045 if (op->source() == NULL) 2046 op->set_source(_compilation->current_instruction()); 2047 #ifndef PRODUCT 2048 if (PrintIRWithLIR) { 2049 _compilation->maybe_print_current_instruction(); 2050 op->print(); tty->cr(); 2051 } 2052 #endif // PRODUCT 2053 2054 _operations.append(op); 2055 2056 #ifdef ASSERT 2057 op->verify(); 2058 op->set_file_and_line(_file, _line); 2059 _file = NULL; 2060 _line = 0; 2061 #endif 2062 } 2063 2064 public: 2065 LIR_List(Compilation* compilation, BlockBegin* block = NULL); 2066 2067 #ifdef ASSERT 2068 void set_file_and_line(const char * file, int line); 2069 #endif 2070 2071 //---------- accessors --------------- 2072 LIR_OpList* instructions_list() { return &_operations; } 2073 int length() const { return _operations.length(); } 2074 LIR_Op* at(int i) const { return _operations.at(i); } 2075 2076 NOT_PRODUCT(BlockBegin* block() const { return _block; }); 2077 2078 // insert LIR_Ops in buffer to right places in LIR_List 2079 void append(LIR_InsertionBuffer* buffer); 2080 2081 //---------- mutators --------------- 2082 void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); } 2083 void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); } 2084 void remove_at(int i) { _operations.remove_at(i); } 2085 2086 //---------- printing ------------- 2087 void print_instructions() PRODUCT_RETURN; 2088 2089 2090 //---------- instructions ------------- 2091 void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result, 2092 address dest, LIR_OprList* arguments, 2093 CodeEmitInfo* info) { 2094 append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info)); 2095 } 2096 void call_static(ciMethod* method, LIR_Opr result, 2097 address dest, LIR_OprList* arguments, CodeEmitInfo* info) { 2098 append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info)); 2099 } 2100 void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result, 2101 address dest, LIR_OprList* arguments, CodeEmitInfo* info) { 2102 append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info)); 2103 } 2104 void call_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result, 2105 intptr_t vtable_offset, LIR_OprList* arguments, CodeEmitInfo* info) { 2106 append(new LIR_OpJavaCall(lir_virtual_call, method, receiver, result, vtable_offset, arguments, info)); 2107 } 2108 void call_dynamic(ciMethod* method, LIR_Opr receiver, LIR_Opr result, 2109 address dest, LIR_OprList* arguments, CodeEmitInfo* info) { 2110 append(new LIR_OpJavaCall(lir_dynamic_call, method, receiver, result, dest, arguments, info)); 2111 } 2112 2113 void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); } 2114 void word_align() { append(new LIR_Op0(lir_word_align)); } 2115 void membar() { append(new LIR_Op0(lir_membar)); } 2116 void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); } 2117 void membar_release() { append(new LIR_Op0(lir_membar_release)); } 2118 void membar_loadload() { append(new LIR_Op0(lir_membar_loadload)); } 2119 void membar_storestore() { append(new LIR_Op0(lir_membar_storestore)); } 2120 void membar_loadstore() { append(new LIR_Op0(lir_membar_loadstore)); } 2121 void membar_storeload() { append(new LIR_Op0(lir_membar_storeload)); } 2122 2123 void nop() { append(new LIR_Op0(lir_nop)); } 2124 void build_frame() { append(new LIR_Op0(lir_build_frame)); } 2125 2126 void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); } 2127 void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); } 2128 2129 void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); } 2130 2131 void negate(LIR_Opr from, LIR_Opr to) { append(new LIR_Op1(lir_neg, from, to)); } 2132 void leal(LIR_Opr from, LIR_Opr result_reg) { append(new LIR_Op1(lir_leal, from, result_reg)); } 2133 2134 // result is a stack location for old backend and vreg for UseLinearScan 2135 // stack_loc_temp is an illegal register for old backend 2136 void roundfp(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) { append(new LIR_OpRoundFP(reg, stack_loc_temp, result)); } 2137 void unaligned_move(LIR_Address* src, LIR_Opr dst) { append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, dst->type(), lir_patch_none, NULL, lir_move_unaligned)); } 2138 void unaligned_move(LIR_Opr src, LIR_Address* dst) { append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), src->type(), lir_patch_none, NULL, lir_move_unaligned)); } 2139 void unaligned_move(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, NULL, lir_move_unaligned)); } 2140 void move(LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); } 2141 void move(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info)); } 2142 void move(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = NULL) { append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info)); } 2143 void move_wide(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = NULL) { 2144 if (UseCompressedOops) { 2145 append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info, lir_move_wide)); 2146 } else { 2147 move(src, dst, info); 2148 } 2149 } 2150 void move_wide(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = NULL) { 2151 if (UseCompressedOops) { 2152 append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info, lir_move_wide)); 2153 } else { 2154 move(src, dst, info); 2155 } 2156 } 2157 void volatile_move(LIR_Opr src, LIR_Opr dst, BasicType type, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none) { append(new LIR_Op1(lir_move, src, dst, type, patch_code, info, lir_move_volatile)); } 2158 2159 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)); } 2160 void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info); 2161 2162 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)); } 2163 void klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info); 2164 2165 void return_op(LIR_Opr result) { append(new LIR_Op1(lir_return, result)); } 2166 2167 void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); } 2168 2169 #ifdef PPC 2170 void convert(Bytecodes::Code code, LIR_Opr left, LIR_Opr dst, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_OpConvert(code, left, dst, NULL, tmp1, tmp2)); } 2171 #endif 2172 void convert(Bytecodes::Code code, LIR_Opr left, LIR_Opr dst, ConversionStub* stub = NULL/*, bool is_32bit = false*/) { append(new LIR_OpConvert(code, left, dst, stub)); } 2173 2174 void shenandoah_wb(LIR_Opr obj, LIR_Opr result, LIR_Opr tmp1, LIR_Opr tmp2, CodeEmitInfo* info, bool need_null_check) { append(new LIR_OpShenandoahWriteBarrier(obj, result, tmp1, tmp2, info, need_null_check)); } 2175 2176 void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); } 2177 void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); } 2178 void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); } 2179 2180 void pack64(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_pack64, src, dst, T_LONG, lir_patch_none, NULL)); } 2181 void unpack64(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_unpack64, src, dst, T_LONG, lir_patch_none, NULL)); } 2182 2183 void null_check(LIR_Opr opr, CodeEmitInfo* info) { append(new LIR_Op1(lir_null_check, opr, info)); } 2184 void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) { 2185 append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info)); 2186 } 2187 void unwind_exception(LIR_Opr exceptionOop) { 2188 append(new LIR_Op1(lir_unwind, exceptionOop)); 2189 } 2190 2191 void compare_to (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { 2192 append(new LIR_Op2(lir_compare_to, left, right, dst)); 2193 } 2194 2195 void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); } 2196 void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); } 2197 2198 void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = NULL) { 2199 append(new LIR_Op2(lir_cmp, condition, left, right, info)); 2200 } 2201 void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = NULL) { 2202 cmp(condition, left, LIR_OprFact::intConst(right), info); 2203 } 2204 2205 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info); 2206 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info); 2207 2208 void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst, BasicType type) { 2209 append(new LIR_Op2(lir_cmove, condition, src1, src2, dst, type)); 2210 } 2211 2212 void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 2213 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr); 2214 void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 2215 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr); 2216 void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 2217 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr); 2218 2219 void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_abs , from, tmp, to)); } 2220 void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_sqrt, from, tmp, to)); } 2221 void log (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log, from, LIR_OprFact::illegalOpr, to, tmp)); } 2222 void log10 (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log10, from, LIR_OprFact::illegalOpr, to, tmp)); } 2223 void sin (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_sin , from, tmp1, to, tmp2)); } 2224 void cos (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_cos , from, tmp1, to, tmp2)); } 2225 void tan (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_tan , from, tmp1, to, tmp2)); } 2226 void exp (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, LIR_Opr tmp4, LIR_Opr tmp5) { append(new LIR_Op2(lir_exp , from, tmp1, to, tmp2, tmp3, tmp4, tmp5)); } 2227 void pow (LIR_Opr arg1, LIR_Opr arg2, LIR_Opr res, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, LIR_Opr tmp4, LIR_Opr tmp5) { append(new LIR_Op2(lir_pow, arg1, arg2, res, tmp1, tmp2, tmp3, tmp4, tmp5)); } 2228 2229 void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); } 2230 void sub (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_sub, left, right, res, info)); } 2231 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); } 2232 void mul_strictfp (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_mul_strictfp, left, right, res, tmp)); } 2233 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_div, left, right, res, info)); } 2234 void div_strictfp (LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_div_strictfp, left, right, res, tmp)); } 2235 void rem (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_rem, left, right, res, info)); } 2236 2237 void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2238 void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code); 2239 2240 void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none); 2241 2242 void store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2243 void store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2244 void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none); 2245 void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2246 void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code); 2247 2248 void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2249 void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2250 void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2251 void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2252 2253 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); 2254 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); 2255 2256 // jump is an unconditional branch 2257 void jump(BlockBegin* block) { 2258 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, block)); 2259 } 2260 void jump(CodeStub* stub) { 2261 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, stub)); 2262 } 2263 void branch(LIR_Condition cond, BasicType type, Label* lbl) { append(new LIR_OpBranch(cond, type, lbl)); } 2264 void branch(LIR_Condition cond, BasicType type, BlockBegin* block) { 2265 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons"); 2266 append(new LIR_OpBranch(cond, type, block)); 2267 } 2268 void branch(LIR_Condition cond, BasicType type, CodeStub* stub) { 2269 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons"); 2270 append(new LIR_OpBranch(cond, type, stub)); 2271 } 2272 void branch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* unordered) { 2273 assert(type == T_FLOAT || type == T_DOUBLE, "fp comparisons only"); 2274 append(new LIR_OpBranch(cond, type, block, unordered)); 2275 } 2276 2277 void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp); 2278 void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp); 2279 void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp); 2280 2281 void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); } 2282 void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); } 2283 void unsigned_shift_right(LIR_Opr value, int count, LIR_Opr dst) { unsigned_shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); } 2284 2285 void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); } 2286 void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less); 2287 2288 void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) { 2289 append(new LIR_OpRTCall(routine, tmp, result, arguments)); 2290 } 2291 2292 void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result, 2293 LIR_OprList* arguments, CodeEmitInfo* info) { 2294 append(new LIR_OpRTCall(routine, tmp, result, arguments, info)); 2295 } 2296 2297 void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); } 2298 void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub); 2299 void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info); 2300 2301 void set_24bit_fpu() { append(new LIR_Op0(lir_24bit_FPU )); } 2302 void restore_fpu() { append(new LIR_Op0(lir_reset_FPU )); } 2303 void breakpoint() { append(new LIR_Op0(lir_breakpoint)); } 2304 2305 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)); } 2306 2307 void update_crc32(LIR_Opr crc, LIR_Opr val, LIR_Opr res) { append(new LIR_OpUpdateCRC32(crc, val, res)); } 2308 2309 void fpop_raw() { append(new LIR_Op0(lir_fpop_raw)); } 2310 2311 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); 2312 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); 2313 2314 void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass, 2315 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, 2316 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub, 2317 ciMethod* profiled_method, int profiled_bci); 2318 // MethodData* profiling 2319 void profile_call(ciMethod* method, int bci, ciMethod* callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* cha_klass) { 2320 append(new LIR_OpProfileCall(method, bci, callee, mdo, recv, t1, cha_klass)); 2321 } 2322 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) { 2323 append(new LIR_OpProfileType(LIR_OprFact::address(mdp), obj, exact_klass, current_klass, tmp, not_null, no_conflict)); 2324 } 2325 2326 void xadd(LIR_Opr src, LIR_Opr add, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xadd, src, add, res, tmp)); } 2327 void xchg(LIR_Opr src, LIR_Opr set, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xchg, src, set, res, tmp)); } 2328 #ifdef ASSERT 2329 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)); } 2330 #endif 2331 }; 2332 2333 void print_LIR(BlockList* blocks); 2334 2335 class LIR_InsertionBuffer : public CompilationResourceObj { 2336 private: 2337 LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (NULL when uninitialized) 2338 2339 // list of insertion points. index and count are stored alternately: 2340 // _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted 2341 // _index_and_count[i * 2 + 1]: the number of ops to be inserted at index 2342 intStack _index_and_count; 2343 2344 // the LIR_Ops to be inserted 2345 LIR_OpList _ops; 2346 2347 void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); } 2348 void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); } 2349 void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); } 2350 2351 #ifdef ASSERT 2352 void verify(); 2353 #endif 2354 public: 2355 LIR_InsertionBuffer() : _lir(NULL), _index_and_count(8), _ops(8) { } 2356 2357 // must be called before using the insertion buffer 2358 void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); } 2359 bool initialized() const { return _lir != NULL; } 2360 // called automatically when the buffer is appended to the LIR_List 2361 void finish() { _lir = NULL; } 2362 2363 // accessors 2364 LIR_List* lir_list() const { return _lir; } 2365 int number_of_insertion_points() const { return _index_and_count.length() >> 1; } 2366 int index_at(int i) const { return _index_and_count.at((i << 1)); } 2367 int count_at(int i) const { return _index_and_count.at((i << 1) + 1); } 2368 2369 int number_of_ops() const { return _ops.length(); } 2370 LIR_Op* op_at(int i) const { return _ops.at(i); } 2371 2372 // append an instruction to the buffer 2373 void append(int index, LIR_Op* op); 2374 2375 // instruction 2376 void move(int index, LIR_Opr src, LIR_Opr dst, CodeEmitInfo* info = NULL) { append(index, new LIR_Op1(lir_move, src, dst, dst->type(), lir_patch_none, info)); } 2377 }; 2378 2379 2380 // 2381 // LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way. 2382 // Calling a LIR_Op's visit function with a LIR_OpVisitState causes 2383 // information about the input, output and temporaries used by the 2384 // op to be recorded. It also records whether the op has call semantics 2385 // and also records all the CodeEmitInfos used by this op. 2386 // 2387 2388 2389 class LIR_OpVisitState: public StackObj { 2390 public: 2391 typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode; 2392 2393 enum { 2394 maxNumberOfOperands = 20, 2395 maxNumberOfInfos = 4 2396 }; 2397 2398 private: 2399 LIR_Op* _op; 2400 2401 // optimization: the operands and infos are not stored in a variable-length 2402 // list, but in a fixed-size array to save time of size checks and resizing 2403 int _oprs_len[numModes]; 2404 LIR_Opr* _oprs_new[numModes][maxNumberOfOperands]; 2405 int _info_len; 2406 CodeEmitInfo* _info_new[maxNumberOfInfos]; 2407 2408 bool _has_call; 2409 bool _has_slow_case; 2410 2411 2412 // only include register operands 2413 // addresses are decomposed to the base and index registers 2414 // constants and stack operands are ignored 2415 void append(LIR_Opr& opr, OprMode mode) { 2416 assert(opr->is_valid(), "should not call this otherwise"); 2417 assert(mode >= 0 && mode < numModes, "bad mode"); 2418 2419 if (opr->is_register()) { 2420 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow"); 2421 _oprs_new[mode][_oprs_len[mode]++] = &opr; 2422 2423 } else if (opr->is_pointer()) { 2424 LIR_Address* address = opr->as_address_ptr(); 2425 if (address != NULL) { 2426 // special handling for addresses: add base and index register of the address 2427 // both are always input operands or temp if we want to extend 2428 // their liveness! 2429 if (mode == outputMode) { 2430 mode = inputMode; 2431 } 2432 assert (mode == inputMode || mode == tempMode, "input or temp only for addresses"); 2433 if (address->_base->is_valid()) { 2434 assert(address->_base->is_register(), "must be"); 2435 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow"); 2436 _oprs_new[mode][_oprs_len[mode]++] = &address->_base; 2437 } 2438 if (address->_index->is_valid()) { 2439 assert(address->_index->is_register(), "must be"); 2440 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow"); 2441 _oprs_new[mode][_oprs_len[mode]++] = &address->_index; 2442 } 2443 2444 } else { 2445 assert(opr->is_constant(), "constant operands are not processed"); 2446 } 2447 } else { 2448 assert(opr->is_stack(), "stack operands are not processed"); 2449 } 2450 } 2451 2452 void append(CodeEmitInfo* info) { 2453 assert(info != NULL, "should not call this otherwise"); 2454 assert(_info_len < maxNumberOfInfos, "array overflow"); 2455 _info_new[_info_len++] = info; 2456 } 2457 2458 public: 2459 LIR_OpVisitState() { reset(); } 2460 2461 LIR_Op* op() const { return _op; } 2462 void set_op(LIR_Op* op) { reset(); _op = op; } 2463 2464 bool has_call() const { return _has_call; } 2465 bool has_slow_case() const { return _has_slow_case; } 2466 2467 void reset() { 2468 _op = NULL; 2469 _has_call = false; 2470 _has_slow_case = false; 2471 2472 _oprs_len[inputMode] = 0; 2473 _oprs_len[tempMode] = 0; 2474 _oprs_len[outputMode] = 0; 2475 _info_len = 0; 2476 } 2477 2478 2479 int opr_count(OprMode mode) const { 2480 assert(mode >= 0 && mode < numModes, "bad mode"); 2481 return _oprs_len[mode]; 2482 } 2483 2484 LIR_Opr opr_at(OprMode mode, int index) const { 2485 assert(mode >= 0 && mode < numModes, "bad mode"); 2486 assert(index >= 0 && index < _oprs_len[mode], "index out of bound"); 2487 return *_oprs_new[mode][index]; 2488 } 2489 2490 void set_opr_at(OprMode mode, int index, LIR_Opr opr) const { 2491 assert(mode >= 0 && mode < numModes, "bad mode"); 2492 assert(index >= 0 && index < _oprs_len[mode], "index out of bound"); 2493 *_oprs_new[mode][index] = opr; 2494 } 2495 2496 int info_count() const { 2497 return _info_len; 2498 } 2499 2500 CodeEmitInfo* info_at(int index) const { 2501 assert(index < _info_len, "index out of bounds"); 2502 return _info_new[index]; 2503 } 2504 2505 XHandlers* all_xhandler(); 2506 2507 // collects all register operands of the instruction 2508 void visit(LIR_Op* op); 2509 2510 #ifdef ASSERT 2511 // check that an operation has no operands 2512 bool no_operands(LIR_Op* op); 2513 #endif 2514 2515 // LIR_Op visitor functions use these to fill in the state 2516 void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); } 2517 void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); } 2518 void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); } 2519 void do_info(CodeEmitInfo* info) { append(info); } 2520 2521 void do_stub(CodeStub* stub); 2522 void do_call() { _has_call = true; } 2523 void do_slow_case() { _has_slow_case = true; } 2524 void do_slow_case(CodeEmitInfo* info) { 2525 _has_slow_case = true; 2526 append(info); 2527 } 2528 }; 2529 2530 2531 inline LIR_Opr LIR_OprDesc::illegalOpr() { return LIR_OprFact::illegalOpr; }; 2532 2533 #endif // SHARE_VM_C1_C1_LIR_HPP