1 /* 2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_C1_C1_LIR_HPP 26 #define SHARE_VM_C1_C1_LIR_HPP 27 28 #include "c1/c1_ValueType.hpp" 29 #include "oops/method.hpp" 30 31 class BlockBegin; 32 class BlockList; 33 class LIR_Assembler; 34 class CodeEmitInfo; 35 class CodeStub; 36 class CodeStubList; 37 class ArrayCopyStub; 38 class LIR_Op; 39 class ciType; 40 class ValueType; 41 class LIR_OpVisitState; 42 class FpuStackSim; 43 44 //--------------------------------------------------------------------- 45 // LIR Operands 46 // LIR_OprDesc 47 // LIR_OprPtr 48 // LIR_Const 49 // LIR_Address 50 //--------------------------------------------------------------------- 51 class LIR_OprDesc; 52 class LIR_OprPtr; 53 class LIR_Const; 54 class LIR_Address; 55 class LIR_OprVisitor; 56 57 58 typedef LIR_OprDesc* LIR_Opr; 59 typedef int RegNr; 60 61 define_array(LIR_OprArray, LIR_Opr) 62 define_stack(LIR_OprList, LIR_OprArray) 63 64 define_array(LIR_OprRefArray, LIR_Opr*) 65 define_stack(LIR_OprRefList, LIR_OprRefArray) 66 67 define_array(CodeEmitInfoArray, CodeEmitInfo*) 68 define_stack(CodeEmitInfoList, CodeEmitInfoArray) 69 70 define_array(LIR_OpArray, LIR_Op*) 71 define_stack(LIR_OpList, LIR_OpArray) 72 73 // define LIR_OprPtr early so LIR_OprDesc can refer to it 74 class LIR_OprPtr: public CompilationResourceObj { 75 public: 76 bool is_oop_pointer() const { return (type() == T_OBJECT); } 77 bool is_float_kind() const { BasicType t = type(); return (t == T_FLOAT) || (t == T_DOUBLE); } 78 79 virtual LIR_Const* as_constant() { return NULL; } 80 virtual LIR_Address* as_address() { return NULL; } 81 virtual BasicType type() const = 0; 82 virtual void print_value_on(outputStream* out) const = 0; 83 }; 84 85 86 87 // LIR constants 88 class LIR_Const: public LIR_OprPtr { 89 private: 90 JavaValue _value; 91 92 void type_check(BasicType t) const { assert(type() == t, "type check"); } 93 void type_check(BasicType t1, BasicType t2) const { assert(type() == t1 || type() == t2, "type check"); } 94 void type_check(BasicType t1, BasicType t2, BasicType t3) const { assert(type() == t1 || type() == t2 || type() == t3, "type check"); } 95 96 public: 97 LIR_Const(jint i, bool is_address=false) { _value.set_type(is_address?T_ADDRESS:T_INT); _value.set_jint(i); } 98 LIR_Const(jlong l) { _value.set_type(T_LONG); _value.set_jlong(l); } 99 LIR_Const(jfloat f) { _value.set_type(T_FLOAT); _value.set_jfloat(f); } 100 LIR_Const(jdouble d) { _value.set_type(T_DOUBLE); _value.set_jdouble(d); } 101 LIR_Const(jobject o) { _value.set_type(T_OBJECT); _value.set_jobject(o); } 102 LIR_Const(void* p) { 103 #ifdef _LP64 104 assert(sizeof(jlong) >= sizeof(p), "too small");; 105 _value.set_type(T_LONG); _value.set_jlong((jlong)p); 106 #else 107 assert(sizeof(jint) >= sizeof(p), "too small");; 108 _value.set_type(T_INT); _value.set_jint((jint)p); 109 #endif 110 } 111 LIR_Const(Metadata* m) { 112 _value.set_type(T_METADATA); 113 #ifdef _LP64 114 _value.set_jlong((jlong)m); 115 #else 116 _value.set_jint((jint)m); 117 #endif // _LP64 118 } 119 120 virtual BasicType type() const { return _value.get_type(); } 121 virtual LIR_Const* as_constant() { return this; } 122 123 jint as_jint() const { type_check(T_INT, T_ADDRESS); return _value.get_jint(); } 124 jlong as_jlong() const { type_check(T_LONG ); return _value.get_jlong(); } 125 jfloat as_jfloat() const { type_check(T_FLOAT ); return _value.get_jfloat(); } 126 jdouble as_jdouble() const { type_check(T_DOUBLE); return _value.get_jdouble(); } 127 jobject as_jobject() const { type_check(T_OBJECT); return _value.get_jobject(); } 128 jint as_jint_lo() const { type_check(T_LONG ); return low(_value.get_jlong()); } 129 jint as_jint_hi() const { type_check(T_LONG ); return high(_value.get_jlong()); } 130 131 #ifdef _LP64 132 address as_pointer() const { type_check(T_LONG ); return (address)_value.get_jlong(); } 133 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jlong(); } 134 #else 135 address as_pointer() const { type_check(T_INT ); return (address)_value.get_jint(); } 136 Metadata* as_metadata() const { type_check(T_METADATA); return (Metadata*)_value.get_jint(); } 137 #endif 138 139 140 jint as_jint_bits() const { type_check(T_FLOAT, T_INT, T_ADDRESS); return _value.get_jint(); } 141 jint as_jint_lo_bits() const { 142 if (type() == T_DOUBLE) { 143 return low(jlong_cast(_value.get_jdouble())); 144 } else { 145 return as_jint_lo(); 146 } 147 } 148 jint as_jint_hi_bits() const { 149 if (type() == T_DOUBLE) { 150 return high(jlong_cast(_value.get_jdouble())); 151 } else { 152 return as_jint_hi(); 153 } 154 } 155 jlong as_jlong_bits() const { 156 if (type() == T_DOUBLE) { 157 return jlong_cast(_value.get_jdouble()); 158 } else { 159 return as_jlong(); 160 } 161 } 162 163 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN; 164 165 166 bool is_zero_float() { 167 jfloat f = as_jfloat(); 168 jfloat ok = 0.0f; 169 return jint_cast(f) == jint_cast(ok); 170 } 171 172 bool is_one_float() { 173 jfloat f = as_jfloat(); 174 return !g_isnan(f) && g_isfinite(f) && f == 1.0; 175 } 176 177 bool is_zero_double() { 178 jdouble d = as_jdouble(); 179 jdouble ok = 0.0; 180 return jlong_cast(d) == jlong_cast(ok); 181 } 182 183 bool is_one_double() { 184 jdouble d = as_jdouble(); 185 return !g_isnan(d) && g_isfinite(d) && d == 1.0; 186 } 187 }; 188 189 190 //---------------------LIR Operand descriptor------------------------------------ 191 // 192 // The class LIR_OprDesc represents a LIR instruction operand; 193 // it can be a register (ALU/FPU), stack location or a constant; 194 // Constants and addresses are represented as resource area allocated 195 // structures (see above). 196 // Registers and stack locations are inlined into the this pointer 197 // (see value function). 198 199 class LIR_OprDesc: public CompilationResourceObj { 200 public: 201 // value structure: 202 // data opr-type opr-kind 203 // +--------------+-------+-------+ 204 // [max...........|7 6 5 4|3 2 1 0] 205 // ^ 206 // is_pointer bit 207 // 208 // lowest bit cleared, means it is a structure pointer 209 // we need 4 bits to represent types 210 211 private: 212 friend class LIR_OprFact; 213 214 // Conversion 215 intptr_t value() const { return (intptr_t) this; } 216 217 bool check_value_mask(intptr_t mask, intptr_t masked_value) const { 218 return (value() & mask) == masked_value; 219 } 220 221 enum OprKind { 222 pointer_value = 0 223 , stack_value = 1 224 , cpu_register = 3 225 , fpu_register = 5 226 , illegal_value = 7 227 }; 228 229 enum OprBits { 230 pointer_bits = 1 231 , kind_bits = 3 232 , type_bits = 4 233 , size_bits = 2 234 , destroys_bits = 1 235 , virtual_bits = 1 236 , is_xmm_bits = 1 237 , last_use_bits = 1 238 , is_fpu_stack_offset_bits = 1 // used in assertion checking on x86 for FPU stack slot allocation 239 , non_data_bits = kind_bits + type_bits + size_bits + destroys_bits + last_use_bits + 240 is_fpu_stack_offset_bits + virtual_bits + is_xmm_bits 241 , data_bits = BitsPerInt - non_data_bits 242 , reg_bits = data_bits / 2 // for two registers in one value encoding 243 }; 244 245 enum OprShift { 246 kind_shift = 0 247 , type_shift = kind_shift + kind_bits 248 , size_shift = type_shift + type_bits 249 , destroys_shift = size_shift + size_bits 250 , last_use_shift = destroys_shift + destroys_bits 251 , is_fpu_stack_offset_shift = last_use_shift + last_use_bits 252 , virtual_shift = is_fpu_stack_offset_shift + is_fpu_stack_offset_bits 253 , is_xmm_shift = virtual_shift + virtual_bits 254 , data_shift = is_xmm_shift + is_xmm_bits 255 , reg1_shift = data_shift 256 , reg2_shift = data_shift + reg_bits 257 258 }; 259 260 enum OprSize { 261 single_size = 0 << size_shift 262 , double_size = 1 << size_shift 263 }; 264 265 enum OprMask { 266 kind_mask = right_n_bits(kind_bits) 267 , type_mask = right_n_bits(type_bits) << type_shift 268 , size_mask = right_n_bits(size_bits) << size_shift 269 , last_use_mask = right_n_bits(last_use_bits) << last_use_shift 270 , is_fpu_stack_offset_mask = right_n_bits(is_fpu_stack_offset_bits) << is_fpu_stack_offset_shift 271 , virtual_mask = right_n_bits(virtual_bits) << virtual_shift 272 , is_xmm_mask = right_n_bits(is_xmm_bits) << is_xmm_shift 273 , pointer_mask = right_n_bits(pointer_bits) 274 , lower_reg_mask = right_n_bits(reg_bits) 275 , no_type_mask = (int)(~(type_mask | last_use_mask | is_fpu_stack_offset_mask)) 276 }; 277 278 uintptr_t data() const { return value() >> data_shift; } 279 int lo_reg_half() const { return data() & lower_reg_mask; } 280 int hi_reg_half() const { return (data() >> reg_bits) & lower_reg_mask; } 281 OprKind kind_field() const { return (OprKind)(value() & kind_mask); } 282 OprSize size_field() const { return (OprSize)(value() & size_mask); } 283 284 static char type_char(BasicType t); 285 286 public: 287 enum { 288 vreg_base = ConcreteRegisterImpl::number_of_registers, 289 vreg_max = (1 << data_bits) - 1 290 }; 291 292 static inline LIR_Opr illegalOpr(); 293 294 enum OprType { 295 unknown_type = 0 << type_shift // means: not set (catch uninitialized types) 296 , int_type = 1 << type_shift 297 , long_type = 2 << type_shift 298 , object_type = 3 << type_shift 299 , address_type = 4 << type_shift 300 , float_type = 5 << type_shift 301 , double_type = 6 << type_shift 302 , metadata_type = 7 << type_shift 303 }; 304 friend OprType as_OprType(BasicType t); 305 friend BasicType as_BasicType(OprType t); 306 307 OprType type_field_valid() const { assert(is_register() || is_stack(), "should not be called otherwise"); return (OprType)(value() & type_mask); } 308 OprType type_field() const { return is_illegal() ? unknown_type : (OprType)(value() & type_mask); } 309 310 static OprSize size_for(BasicType t) { 311 switch (t) { 312 case T_LONG: 313 case T_DOUBLE: 314 return double_size; 315 break; 316 317 case T_FLOAT: 318 case T_BOOLEAN: 319 case T_CHAR: 320 case T_BYTE: 321 case T_SHORT: 322 case T_INT: 323 case T_ADDRESS: 324 case T_OBJECT: 325 case T_ARRAY: 326 case T_METADATA: 327 return single_size; 328 break; 329 330 default: 331 ShouldNotReachHere(); 332 return single_size; 333 } 334 } 335 336 337 void validate_type() const PRODUCT_RETURN; 338 339 BasicType type() const { 340 if (is_pointer()) { 341 return pointer()->type(); 342 } 343 return as_BasicType(type_field()); 344 } 345 346 347 ValueType* value_type() const { return as_ValueType(type()); } 348 349 char type_char() const { return type_char((is_pointer()) ? pointer()->type() : type()); } 350 351 bool is_equal(LIR_Opr opr) const { return this == opr; } 352 // checks whether types are same 353 bool is_same_type(LIR_Opr opr) const { 354 assert(type_field() != unknown_type && 355 opr->type_field() != unknown_type, "shouldn't see unknown_type"); 356 return type_field() == opr->type_field(); 357 } 358 bool is_same_register(LIR_Opr opr) { 359 return (is_register() && opr->is_register() && 360 kind_field() == opr->kind_field() && 361 (value() & no_type_mask) == (opr->value() & no_type_mask)); 362 } 363 364 bool is_pointer() const { return check_value_mask(pointer_mask, pointer_value); } 365 bool is_illegal() const { return kind_field() == illegal_value; } 366 bool is_valid() const { return kind_field() != illegal_value; } 367 368 bool is_register() const { return is_cpu_register() || is_fpu_register(); } 369 bool is_virtual() const { return is_virtual_cpu() || is_virtual_fpu(); } 370 371 bool is_constant() const { return is_pointer() && pointer()->as_constant() != NULL; } 372 bool is_address() const { return is_pointer() && pointer()->as_address() != NULL; } 373 374 bool is_float_kind() const { return is_pointer() ? pointer()->is_float_kind() : (kind_field() == fpu_register); } 375 bool is_oop() const; 376 377 // semantic for fpu- and xmm-registers: 378 // * is_float and is_double return true for xmm_registers 379 // (so is_single_fpu and is_single_xmm are true) 380 // * So you must always check for is_???_xmm prior to is_???_fpu to 381 // distinguish between fpu- and xmm-registers 382 383 bool is_stack() const { validate_type(); return check_value_mask(kind_mask, stack_value); } 384 bool is_single_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | single_size); } 385 bool is_double_stack() const { validate_type(); return check_value_mask(kind_mask | size_mask, stack_value | double_size); } 386 387 bool is_cpu_register() const { validate_type(); return check_value_mask(kind_mask, cpu_register); } 388 bool is_virtual_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register | virtual_mask); } 389 bool is_fixed_cpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, cpu_register); } 390 bool is_single_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | single_size); } 391 bool is_double_cpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, cpu_register | double_size); } 392 393 bool is_fpu_register() const { validate_type(); return check_value_mask(kind_mask, fpu_register); } 394 bool is_virtual_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register | virtual_mask); } 395 bool is_fixed_fpu() const { validate_type(); return check_value_mask(kind_mask | virtual_mask, fpu_register); } 396 bool is_single_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | single_size); } 397 bool is_double_fpu() const { validate_type(); return check_value_mask(kind_mask | size_mask, fpu_register | double_size); } 398 399 bool is_xmm_register() const { validate_type(); return check_value_mask(kind_mask | is_xmm_mask, fpu_register | is_xmm_mask); } 400 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); } 401 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); } 402 403 // fast accessor functions for special bits that do not work for pointers 404 // (in this functions, the check for is_pointer() is omitted) 405 bool is_single_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, single_size); } 406 bool is_double_word() const { assert(is_register() || is_stack(), "type check"); return check_value_mask(size_mask, double_size); } 407 bool is_virtual_register() const { assert(is_register(), "type check"); return check_value_mask(virtual_mask, virtual_mask); } 408 bool is_oop_register() const { assert(is_register() || is_stack(), "type check"); return type_field_valid() == object_type; } 409 BasicType type_register() const { assert(is_register() || is_stack(), "type check"); return as_BasicType(type_field_valid()); } 410 411 bool is_last_use() const { assert(is_register(), "only works for registers"); return (value() & last_use_mask) != 0; } 412 bool is_fpu_stack_offset() const { assert(is_register(), "only works for registers"); return (value() & is_fpu_stack_offset_mask) != 0; } 413 LIR_Opr make_last_use() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | last_use_mask); } 414 LIR_Opr make_fpu_stack_offset() { assert(is_register(), "only works for registers"); return (LIR_Opr)(value() | is_fpu_stack_offset_mask); } 415 416 417 int single_stack_ix() const { assert(is_single_stack() && !is_virtual(), "type check"); return (int)data(); } 418 int double_stack_ix() const { assert(is_double_stack() && !is_virtual(), "type check"); return (int)data(); } 419 RegNr cpu_regnr() const { assert(is_single_cpu() && !is_virtual(), "type check"); return (RegNr)data(); } 420 RegNr cpu_regnrLo() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); } 421 RegNr cpu_regnrHi() const { assert(is_double_cpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); } 422 RegNr fpu_regnr() const { assert(is_single_fpu() && !is_virtual(), "type check"); return (RegNr)data(); } 423 RegNr fpu_regnrLo() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); } 424 RegNr fpu_regnrHi() const { assert(is_double_fpu() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); } 425 RegNr xmm_regnr() const { assert(is_single_xmm() && !is_virtual(), "type check"); return (RegNr)data(); } 426 RegNr xmm_regnrLo() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)lo_reg_half(); } 427 RegNr xmm_regnrHi() const { assert(is_double_xmm() && !is_virtual(), "type check"); return (RegNr)hi_reg_half(); } 428 int vreg_number() const { assert(is_virtual(), "type check"); return (RegNr)data(); } 429 430 LIR_OprPtr* pointer() const { assert(is_pointer(), "type check"); return (LIR_OprPtr*)this; } 431 LIR_Const* as_constant_ptr() const { return pointer()->as_constant(); } 432 LIR_Address* as_address_ptr() const { return pointer()->as_address(); } 433 434 Register as_register() const; 435 Register as_register_lo() const; 436 Register as_register_hi() const; 437 438 Register as_pointer_register() { 439 #ifdef _LP64 440 if (is_double_cpu()) { 441 assert(as_register_lo() == as_register_hi(), "should be a single register"); 442 return as_register_lo(); 443 } 444 #endif 445 return as_register(); 446 } 447 448 #ifdef X86 449 XMMRegister as_xmm_float_reg() const; 450 XMMRegister as_xmm_double_reg() const; 451 // for compatibility with RInfo 452 int fpu () const { return lo_reg_half(); } 453 #endif // X86 454 #if defined(SPARC) || defined(ARM) || defined(PPC) 455 FloatRegister as_float_reg () const; 456 FloatRegister as_double_reg () const; 457 #endif 458 459 jint as_jint() const { return as_constant_ptr()->as_jint(); } 460 jlong as_jlong() const { return as_constant_ptr()->as_jlong(); } 461 jfloat as_jfloat() const { return as_constant_ptr()->as_jfloat(); } 462 jdouble as_jdouble() const { return as_constant_ptr()->as_jdouble(); } 463 jobject as_jobject() const { return as_constant_ptr()->as_jobject(); } 464 465 void print() const PRODUCT_RETURN; 466 void print(outputStream* out) const PRODUCT_RETURN; 467 }; 468 469 470 inline LIR_OprDesc::OprType as_OprType(BasicType type) { 471 switch (type) { 472 case T_INT: return LIR_OprDesc::int_type; 473 case T_LONG: return LIR_OprDesc::long_type; 474 case T_FLOAT: return LIR_OprDesc::float_type; 475 case T_DOUBLE: return LIR_OprDesc::double_type; 476 case T_OBJECT: 477 case T_ARRAY: return LIR_OprDesc::object_type; 478 case T_ADDRESS: return LIR_OprDesc::address_type; 479 case T_METADATA: return LIR_OprDesc::metadata_type; 480 case T_ILLEGAL: // fall through 481 default: ShouldNotReachHere(); return LIR_OprDesc::unknown_type; 482 } 483 } 484 485 inline BasicType as_BasicType(LIR_OprDesc::OprType t) { 486 switch (t) { 487 case LIR_OprDesc::int_type: return T_INT; 488 case LIR_OprDesc::long_type: return T_LONG; 489 case LIR_OprDesc::float_type: return T_FLOAT; 490 case LIR_OprDesc::double_type: return T_DOUBLE; 491 case LIR_OprDesc::object_type: return T_OBJECT; 492 case LIR_OprDesc::address_type: return T_ADDRESS; 493 case LIR_OprDesc::metadata_type:return T_METADATA; 494 case LIR_OprDesc::unknown_type: // fall through 495 default: ShouldNotReachHere(); return T_ILLEGAL; 496 } 497 } 498 499 500 // LIR_Address 501 class LIR_Address: public LIR_OprPtr { 502 friend class LIR_OpVisitState; 503 504 public: 505 // NOTE: currently these must be the log2 of the scale factor (and 506 // must also be equivalent to the ScaleFactor enum in 507 // assembler_i486.hpp) 508 enum Scale { 509 times_1 = 0, 510 times_2 = 1, 511 times_4 = 2, 512 times_8 = 3 513 }; 514 515 private: 516 LIR_Opr _base; 517 LIR_Opr _index; 518 Scale _scale; 519 intx _disp; 520 BasicType _type; 521 522 public: 523 LIR_Address(LIR_Opr base, LIR_Opr index, BasicType type): 524 _base(base) 525 , _index(index) 526 , _scale(times_1) 527 , _type(type) 528 , _disp(0) { verify(); } 529 530 LIR_Address(LIR_Opr base, intx disp, BasicType type): 531 _base(base) 532 , _index(LIR_OprDesc::illegalOpr()) 533 , _scale(times_1) 534 , _type(type) 535 , _disp(disp) { verify(); } 536 537 LIR_Address(LIR_Opr base, BasicType type): 538 _base(base) 539 , _index(LIR_OprDesc::illegalOpr()) 540 , _scale(times_1) 541 , _type(type) 542 , _disp(0) { verify(); } 543 544 #if defined(X86) || defined(ARM) 545 LIR_Address(LIR_Opr base, LIR_Opr index, Scale scale, intx disp, BasicType type): 546 _base(base) 547 , _index(index) 548 , _scale(scale) 549 , _type(type) 550 , _disp(disp) { verify(); } 551 #endif // X86 || ARM 552 553 LIR_Opr base() const { return _base; } 554 LIR_Opr index() const { return _index; } 555 Scale scale() const { return _scale; } 556 intx disp() const { return _disp; } 557 558 bool equals(LIR_Address* other) const { return base() == other->base() && index() == other->index() && disp() == other->disp() && scale() == other->scale(); } 559 560 virtual LIR_Address* as_address() { return this; } 561 virtual BasicType type() const { return _type; } 562 virtual void print_value_on(outputStream* out) const PRODUCT_RETURN; 563 564 void verify() const PRODUCT_RETURN; 565 566 static Scale scale(BasicType type); 567 }; 568 569 570 // operand factory 571 class LIR_OprFact: public AllStatic { 572 public: 573 574 static LIR_Opr illegalOpr; 575 576 static LIR_Opr single_cpu(int reg) { 577 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 578 LIR_OprDesc::int_type | 579 LIR_OprDesc::cpu_register | 580 LIR_OprDesc::single_size); 581 } 582 static LIR_Opr single_cpu_oop(int reg) { 583 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 584 LIR_OprDesc::object_type | 585 LIR_OprDesc::cpu_register | 586 LIR_OprDesc::single_size); 587 } 588 static LIR_Opr single_cpu_address(int reg) { 589 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 590 LIR_OprDesc::address_type | 591 LIR_OprDesc::cpu_register | 592 LIR_OprDesc::single_size); 593 } 594 static LIR_Opr single_cpu_metadata(int reg) { 595 return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 596 LIR_OprDesc::metadata_type | 597 LIR_OprDesc::cpu_register | 598 LIR_OprDesc::single_size); 599 } 600 static LIR_Opr double_cpu(int reg1, int reg2) { 601 LP64_ONLY(assert(reg1 == reg2, "must be identical")); 602 return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) | 603 (reg2 << LIR_OprDesc::reg2_shift) | 604 LIR_OprDesc::long_type | 605 LIR_OprDesc::cpu_register | 606 LIR_OprDesc::double_size); 607 } 608 609 static LIR_Opr single_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 610 LIR_OprDesc::float_type | 611 LIR_OprDesc::fpu_register | 612 LIR_OprDesc::single_size); } 613 #if defined(ARM) 614 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); } 615 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); } 616 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); } 617 #endif 618 #ifdef SPARC 619 static LIR_Opr double_fpu(int reg1, int reg2) { return (LIR_Opr)(intptr_t)((reg1 << LIR_OprDesc::reg1_shift) | 620 (reg2 << LIR_OprDesc::reg2_shift) | 621 LIR_OprDesc::double_type | 622 LIR_OprDesc::fpu_register | 623 LIR_OprDesc::double_size); } 624 #endif 625 #ifdef X86 626 static LIR_Opr double_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 627 (reg << LIR_OprDesc::reg2_shift) | 628 LIR_OprDesc::double_type | 629 LIR_OprDesc::fpu_register | 630 LIR_OprDesc::double_size); } 631 632 static LIR_Opr single_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 633 LIR_OprDesc::float_type | 634 LIR_OprDesc::fpu_register | 635 LIR_OprDesc::single_size | 636 LIR_OprDesc::is_xmm_mask); } 637 static LIR_Opr double_xmm(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 638 (reg << LIR_OprDesc::reg2_shift) | 639 LIR_OprDesc::double_type | 640 LIR_OprDesc::fpu_register | 641 LIR_OprDesc::double_size | 642 LIR_OprDesc::is_xmm_mask); } 643 #endif // X86 644 #ifdef PPC 645 static LIR_Opr double_fpu(int reg) { return (LIR_Opr)(intptr_t)((reg << LIR_OprDesc::reg1_shift) | 646 (reg << LIR_OprDesc::reg2_shift) | 647 LIR_OprDesc::double_type | 648 LIR_OprDesc::fpu_register | 649 LIR_OprDesc::double_size); } 650 static LIR_Opr single_softfp(int reg) { return (LIR_Opr)((reg << LIR_OprDesc::reg1_shift) | 651 LIR_OprDesc::float_type | 652 LIR_OprDesc::cpu_register | 653 LIR_OprDesc::single_size); } 654 static LIR_Opr double_softfp(int reg1, int reg2) { return (LIR_Opr)((reg2 << LIR_OprDesc::reg1_shift) | 655 (reg1 << LIR_OprDesc::reg2_shift) | 656 LIR_OprDesc::double_type | 657 LIR_OprDesc::cpu_register | 658 LIR_OprDesc::double_size); } 659 #endif // PPC 660 661 static LIR_Opr virtual_register(int index, BasicType type) { 662 LIR_Opr res; 663 switch (type) { 664 case T_OBJECT: // fall through 665 case T_ARRAY: 666 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 667 LIR_OprDesc::object_type | 668 LIR_OprDesc::cpu_register | 669 LIR_OprDesc::single_size | 670 LIR_OprDesc::virtual_mask); 671 break; 672 673 case T_METADATA: 674 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 675 LIR_OprDesc::metadata_type| 676 LIR_OprDesc::cpu_register | 677 LIR_OprDesc::single_size | 678 LIR_OprDesc::virtual_mask); 679 break; 680 681 case T_INT: 682 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 683 LIR_OprDesc::int_type | 684 LIR_OprDesc::cpu_register | 685 LIR_OprDesc::single_size | 686 LIR_OprDesc::virtual_mask); 687 break; 688 689 case T_ADDRESS: 690 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 691 LIR_OprDesc::address_type | 692 LIR_OprDesc::cpu_register | 693 LIR_OprDesc::single_size | 694 LIR_OprDesc::virtual_mask); 695 break; 696 697 case T_LONG: 698 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 699 LIR_OprDesc::long_type | 700 LIR_OprDesc::cpu_register | 701 LIR_OprDesc::double_size | 702 LIR_OprDesc::virtual_mask); 703 break; 704 705 #ifdef __SOFTFP__ 706 case T_FLOAT: 707 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 708 LIR_OprDesc::float_type | 709 LIR_OprDesc::cpu_register | 710 LIR_OprDesc::single_size | 711 LIR_OprDesc::virtual_mask); 712 break; 713 case T_DOUBLE: 714 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 715 LIR_OprDesc::double_type | 716 LIR_OprDesc::cpu_register | 717 LIR_OprDesc::double_size | 718 LIR_OprDesc::virtual_mask); 719 break; 720 #else // __SOFTFP__ 721 case T_FLOAT: 722 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 723 LIR_OprDesc::float_type | 724 LIR_OprDesc::fpu_register | 725 LIR_OprDesc::single_size | 726 LIR_OprDesc::virtual_mask); 727 break; 728 729 case 730 T_DOUBLE: res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 731 LIR_OprDesc::double_type | 732 LIR_OprDesc::fpu_register | 733 LIR_OprDesc::double_size | 734 LIR_OprDesc::virtual_mask); 735 break; 736 #endif // __SOFTFP__ 737 default: ShouldNotReachHere(); res = illegalOpr; 738 } 739 740 #ifdef ASSERT 741 res->validate_type(); 742 assert(res->vreg_number() == index, "conversion check"); 743 assert(index >= LIR_OprDesc::vreg_base, "must start at vreg_base"); 744 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big"); 745 746 // old-style calculation; check if old and new method are equal 747 LIR_OprDesc::OprType t = as_OprType(type); 748 #ifdef __SOFTFP__ 749 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 750 t | 751 LIR_OprDesc::cpu_register | 752 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask); 753 #else // __SOFTFP__ 754 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | t | 755 ((type == T_FLOAT || type == T_DOUBLE) ? LIR_OprDesc::fpu_register : LIR_OprDesc::cpu_register) | 756 LIR_OprDesc::size_for(type) | LIR_OprDesc::virtual_mask); 757 assert(res == old_res, "old and new method not equal"); 758 #endif // __SOFTFP__ 759 #endif // ASSERT 760 761 return res; 762 } 763 764 // 'index' is computed by FrameMap::local_stack_pos(index); do not use other parameters as 765 // the index is platform independent; a double stack useing indeces 2 and 3 has always 766 // index 2. 767 static LIR_Opr stack(int index, BasicType type) { 768 LIR_Opr res; 769 switch (type) { 770 case T_OBJECT: // fall through 771 case T_ARRAY: 772 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 773 LIR_OprDesc::object_type | 774 LIR_OprDesc::stack_value | 775 LIR_OprDesc::single_size); 776 break; 777 778 case T_METADATA: 779 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 780 LIR_OprDesc::metadata_type | 781 LIR_OprDesc::stack_value | 782 LIR_OprDesc::single_size); 783 break; 784 case T_INT: 785 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 786 LIR_OprDesc::int_type | 787 LIR_OprDesc::stack_value | 788 LIR_OprDesc::single_size); 789 break; 790 791 case T_ADDRESS: 792 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 793 LIR_OprDesc::address_type | 794 LIR_OprDesc::stack_value | 795 LIR_OprDesc::single_size); 796 break; 797 798 case T_LONG: 799 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 800 LIR_OprDesc::long_type | 801 LIR_OprDesc::stack_value | 802 LIR_OprDesc::double_size); 803 break; 804 805 case T_FLOAT: 806 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 807 LIR_OprDesc::float_type | 808 LIR_OprDesc::stack_value | 809 LIR_OprDesc::single_size); 810 break; 811 case T_DOUBLE: 812 res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 813 LIR_OprDesc::double_type | 814 LIR_OprDesc::stack_value | 815 LIR_OprDesc::double_size); 816 break; 817 818 default: ShouldNotReachHere(); res = illegalOpr; 819 } 820 821 #ifdef ASSERT 822 assert(index >= 0, "index must be positive"); 823 assert(index <= (max_jint >> LIR_OprDesc::data_shift), "index is too big"); 824 825 LIR_Opr old_res = (LIR_Opr)(intptr_t)((index << LIR_OprDesc::data_shift) | 826 LIR_OprDesc::stack_value | 827 as_OprType(type) | 828 LIR_OprDesc::size_for(type)); 829 assert(res == old_res, "old and new method not equal"); 830 #endif 831 832 return res; 833 } 834 835 static LIR_Opr intConst(jint i) { return (LIR_Opr)(new LIR_Const(i)); } 836 static LIR_Opr longConst(jlong l) { return (LIR_Opr)(new LIR_Const(l)); } 837 static LIR_Opr floatConst(jfloat f) { return (LIR_Opr)(new LIR_Const(f)); } 838 static LIR_Opr doubleConst(jdouble d) { return (LIR_Opr)(new LIR_Const(d)); } 839 static LIR_Opr oopConst(jobject o) { return (LIR_Opr)(new LIR_Const(o)); } 840 static LIR_Opr address(LIR_Address* a) { return (LIR_Opr)a; } 841 static LIR_Opr intptrConst(void* p) { return (LIR_Opr)(new LIR_Const(p)); } 842 static LIR_Opr intptrConst(intptr_t v) { return (LIR_Opr)(new LIR_Const((void*)v)); } 843 static LIR_Opr illegal() { return (LIR_Opr)-1; } 844 static LIR_Opr addressConst(jint i) { return (LIR_Opr)(new LIR_Const(i, true)); } 845 static LIR_Opr metadataConst(Metadata* m) { return (LIR_Opr)(new LIR_Const(m)); } 846 847 static LIR_Opr value_type(ValueType* type); 848 static LIR_Opr dummy_value_type(ValueType* type); 849 }; 850 851 852 //------------------------------------------------------------------------------- 853 // LIR Instructions 854 //------------------------------------------------------------------------------- 855 // 856 // Note: 857 // - every instruction has a result operand 858 // - every instruction has an CodeEmitInfo operand (can be revisited later) 859 // - every instruction has a LIR_OpCode operand 860 // - LIR_OpN, means an instruction that has N input operands 861 // 862 // class hierarchy: 863 // 864 class LIR_Op; 865 class LIR_Op0; 866 class LIR_OpLabel; 867 class LIR_Op1; 868 class LIR_OpBranch; 869 class LIR_OpConvert; 870 class LIR_OpAllocObj; 871 class LIR_OpRoundFP; 872 class LIR_Op2; 873 class LIR_OpDelay; 874 class LIR_Op3; 875 class LIR_OpAllocArray; 876 class LIR_OpCall; 877 class LIR_OpJavaCall; 878 class LIR_OpRTCall; 879 class LIR_OpArrayCopy; 880 class LIR_OpLock; 881 class LIR_OpTypeCheck; 882 class LIR_OpCompareAndSwap; 883 class LIR_OpProfileCall; 884 #ifdef ASSERT 885 class LIR_OpAssert; 886 #endif 887 888 // LIR operation codes 889 enum LIR_Code { 890 lir_none 891 , begin_op0 892 , lir_word_align 893 , lir_label 894 , lir_nop 895 , lir_backwardbranch_target 896 , lir_std_entry 897 , lir_osr_entry 898 , lir_build_frame 899 , lir_fpop_raw 900 , lir_24bit_FPU 901 , lir_reset_FPU 902 , lir_breakpoint 903 , lir_rtcall 904 , lir_membar 905 , lir_membar_acquire 906 , lir_membar_release 907 , lir_membar_loadload 908 , lir_membar_storestore 909 , lir_membar_loadstore 910 , lir_membar_storeload 911 , lir_get_thread 912 , end_op0 913 , begin_op1 914 , lir_fxch 915 , lir_fld 916 , lir_ffree 917 , lir_push 918 , lir_pop 919 , lir_null_check 920 , lir_return 921 , lir_leal 922 , lir_neg 923 , lir_branch 924 , lir_cond_float_branch 925 , lir_move 926 , lir_prefetchr 927 , lir_prefetchw 928 , lir_convert 929 , lir_alloc_object 930 , lir_monaddr 931 , lir_roundfp 932 , lir_safepoint 933 , lir_pack64 934 , lir_unpack64 935 , lir_unwind 936 , end_op1 937 , begin_op2 938 , lir_cmp 939 , lir_cmp_l2i 940 , lir_ucmp_fd2i 941 , lir_cmp_fd2i 942 , lir_cmove 943 , lir_add 944 , lir_sub 945 , lir_mul 946 , lir_mul_strictfp 947 , lir_div 948 , lir_div_strictfp 949 , lir_rem 950 , lir_sqrt 951 , lir_abs 952 , lir_sin 953 , lir_cos 954 , lir_tan 955 , lir_log 956 , lir_log10 957 , lir_exp 958 , lir_pow 959 , lir_logic_and 960 , lir_logic_or 961 , lir_logic_xor 962 , lir_shl 963 , lir_shr 964 , lir_ushr 965 , lir_alloc_array 966 , lir_throw 967 , lir_compare_to 968 , lir_xadd 969 , lir_xchg 970 , end_op2 971 , begin_op3 972 , lir_idiv 973 , lir_irem 974 , end_op3 975 , begin_opJavaCall 976 , lir_static_call 977 , lir_optvirtual_call 978 , lir_icvirtual_call 979 , lir_virtual_call 980 , lir_dynamic_call 981 , end_opJavaCall 982 , begin_opArrayCopy 983 , lir_arraycopy 984 , end_opArrayCopy 985 , begin_opLock 986 , lir_lock 987 , lir_unlock 988 , end_opLock 989 , begin_delay_slot 990 , lir_delay_slot 991 , end_delay_slot 992 , begin_opTypeCheck 993 , lir_instanceof 994 , lir_checkcast 995 , lir_store_check 996 , end_opTypeCheck 997 , begin_opCompareAndSwap 998 , lir_cas_long 999 , lir_cas_obj 1000 , lir_cas_int 1001 , end_opCompareAndSwap 1002 , begin_opMDOProfile 1003 , lir_profile_call 1004 , end_opMDOProfile 1005 , begin_opAssert 1006 , lir_assert 1007 , end_opAssert 1008 }; 1009 1010 1011 enum LIR_Condition { 1012 lir_cond_equal 1013 , lir_cond_notEqual 1014 , lir_cond_less 1015 , lir_cond_lessEqual 1016 , lir_cond_greaterEqual 1017 , lir_cond_greater 1018 , lir_cond_belowEqual 1019 , lir_cond_aboveEqual 1020 , lir_cond_always 1021 , lir_cond_unknown = -1 1022 }; 1023 1024 1025 enum LIR_PatchCode { 1026 lir_patch_none, 1027 lir_patch_low, 1028 lir_patch_high, 1029 lir_patch_normal 1030 }; 1031 1032 1033 enum LIR_MoveKind { 1034 lir_move_normal, 1035 lir_move_volatile, 1036 lir_move_unaligned, 1037 lir_move_wide, 1038 lir_move_max_flag 1039 }; 1040 1041 1042 // -------------------------------------------------- 1043 // LIR_Op 1044 // -------------------------------------------------- 1045 class LIR_Op: public CompilationResourceObj { 1046 friend class LIR_OpVisitState; 1047 1048 #ifdef ASSERT 1049 private: 1050 const char * _file; 1051 int _line; 1052 #endif 1053 1054 protected: 1055 LIR_Opr _result; 1056 unsigned short _code; 1057 unsigned short _flags; 1058 CodeEmitInfo* _info; 1059 int _id; // value id for register allocation 1060 int _fpu_pop_count; 1061 Instruction* _source; // for debugging 1062 1063 static void print_condition(outputStream* out, LIR_Condition cond) PRODUCT_RETURN; 1064 1065 protected: 1066 static bool is_in_range(LIR_Code test, LIR_Code start, LIR_Code end) { return start < test && test < end; } 1067 1068 public: 1069 LIR_Op() 1070 : _result(LIR_OprFact::illegalOpr) 1071 , _code(lir_none) 1072 , _flags(0) 1073 , _info(NULL) 1074 #ifdef ASSERT 1075 , _file(NULL) 1076 , _line(0) 1077 #endif 1078 , _fpu_pop_count(0) 1079 , _source(NULL) 1080 , _id(-1) {} 1081 1082 LIR_Op(LIR_Code code, LIR_Opr result, CodeEmitInfo* info) 1083 : _result(result) 1084 , _code(code) 1085 , _flags(0) 1086 , _info(info) 1087 #ifdef ASSERT 1088 , _file(NULL) 1089 , _line(0) 1090 #endif 1091 , _fpu_pop_count(0) 1092 , _source(NULL) 1093 , _id(-1) {} 1094 1095 CodeEmitInfo* info() const { return _info; } 1096 LIR_Code code() const { return (LIR_Code)_code; } 1097 LIR_Opr result_opr() const { return _result; } 1098 void set_result_opr(LIR_Opr opr) { _result = opr; } 1099 1100 #ifdef ASSERT 1101 void set_file_and_line(const char * file, int line) { 1102 _file = file; 1103 _line = line; 1104 } 1105 #endif 1106 1107 virtual const char * name() const PRODUCT_RETURN0; 1108 1109 int id() const { return _id; } 1110 void set_id(int id) { _id = id; } 1111 1112 // FPU stack simulation helpers -- only used on Intel 1113 void set_fpu_pop_count(int count) { assert(count >= 0 && count <= 1, "currently only 0 and 1 are valid"); _fpu_pop_count = count; } 1114 int fpu_pop_count() const { return _fpu_pop_count; } 1115 bool pop_fpu_stack() { return _fpu_pop_count > 0; } 1116 1117 Instruction* source() const { return _source; } 1118 void set_source(Instruction* ins) { _source = ins; } 1119 1120 virtual void emit_code(LIR_Assembler* masm) = 0; 1121 virtual void print_instr(outputStream* out) const = 0; 1122 virtual void print_on(outputStream* st) const PRODUCT_RETURN; 1123 1124 virtual LIR_OpCall* as_OpCall() { return NULL; } 1125 virtual LIR_OpJavaCall* as_OpJavaCall() { return NULL; } 1126 virtual LIR_OpLabel* as_OpLabel() { return NULL; } 1127 virtual LIR_OpDelay* as_OpDelay() { return NULL; } 1128 virtual LIR_OpLock* as_OpLock() { return NULL; } 1129 virtual LIR_OpAllocArray* as_OpAllocArray() { return NULL; } 1130 virtual LIR_OpAllocObj* as_OpAllocObj() { return NULL; } 1131 virtual LIR_OpRoundFP* as_OpRoundFP() { return NULL; } 1132 virtual LIR_OpBranch* as_OpBranch() { return NULL; } 1133 virtual LIR_OpRTCall* as_OpRTCall() { return NULL; } 1134 virtual LIR_OpConvert* as_OpConvert() { return NULL; } 1135 virtual LIR_Op0* as_Op0() { return NULL; } 1136 virtual LIR_Op1* as_Op1() { return NULL; } 1137 virtual LIR_Op2* as_Op2() { return NULL; } 1138 virtual LIR_Op3* as_Op3() { return NULL; } 1139 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return NULL; } 1140 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return NULL; } 1141 virtual LIR_OpCompareAndSwap* as_OpCompareAndSwap() { return NULL; } 1142 virtual LIR_OpProfileCall* as_OpProfileCall() { return NULL; } 1143 #ifdef ASSERT 1144 virtual LIR_OpAssert* as_OpAssert() { return NULL; } 1145 #endif 1146 1147 virtual void verify() const {} 1148 }; 1149 1150 // for calls 1151 class LIR_OpCall: public LIR_Op { 1152 friend class LIR_OpVisitState; 1153 1154 protected: 1155 address _addr; 1156 LIR_OprList* _arguments; 1157 protected: 1158 LIR_OpCall(LIR_Code code, address addr, LIR_Opr result, 1159 LIR_OprList* arguments, CodeEmitInfo* info = NULL) 1160 : LIR_Op(code, result, info) 1161 , _arguments(arguments) 1162 , _addr(addr) {} 1163 1164 public: 1165 address addr() const { return _addr; } 1166 const LIR_OprList* arguments() const { return _arguments; } 1167 virtual LIR_OpCall* as_OpCall() { return this; } 1168 }; 1169 1170 1171 // -------------------------------------------------- 1172 // LIR_OpJavaCall 1173 // -------------------------------------------------- 1174 class LIR_OpJavaCall: public LIR_OpCall { 1175 friend class LIR_OpVisitState; 1176 1177 private: 1178 ciMethod* _method; 1179 LIR_Opr _receiver; 1180 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. 1181 1182 public: 1183 LIR_OpJavaCall(LIR_Code code, ciMethod* method, 1184 LIR_Opr receiver, LIR_Opr result, 1185 address addr, LIR_OprList* arguments, 1186 CodeEmitInfo* info) 1187 : LIR_OpCall(code, addr, result, arguments, info) 1188 , _receiver(receiver) 1189 , _method(method) 1190 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr) 1191 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); } 1192 1193 LIR_OpJavaCall(LIR_Code code, ciMethod* method, 1194 LIR_Opr receiver, LIR_Opr result, intptr_t vtable_offset, 1195 LIR_OprList* arguments, CodeEmitInfo* info) 1196 : LIR_OpCall(code, (address)vtable_offset, result, arguments, info) 1197 , _receiver(receiver) 1198 , _method(method) 1199 , _method_handle_invoke_SP_save_opr(LIR_OprFact::illegalOpr) 1200 { assert(is_in_range(code, begin_opJavaCall, end_opJavaCall), "code check"); } 1201 1202 LIR_Opr receiver() const { return _receiver; } 1203 ciMethod* method() const { return _method; } 1204 1205 // JSR 292 support. 1206 bool is_invokedynamic() const { return code() == lir_dynamic_call; } 1207 bool is_method_handle_invoke() const { 1208 return 1209 is_invokedynamic() // An invokedynamic is always a MethodHandle call site. 1210 || 1211 method()->is_compiled_lambda_form() // Java-generated adapter 1212 || 1213 method()->is_method_handle_intrinsic(); // JVM-generated MH intrinsic 1214 } 1215 1216 intptr_t vtable_offset() const { 1217 assert(_code == lir_virtual_call, "only have vtable for real vcall"); 1218 return (intptr_t) addr(); 1219 } 1220 1221 virtual void emit_code(LIR_Assembler* masm); 1222 virtual LIR_OpJavaCall* as_OpJavaCall() { return this; } 1223 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1224 }; 1225 1226 // -------------------------------------------------- 1227 // LIR_OpLabel 1228 // -------------------------------------------------- 1229 // Location where a branch can continue 1230 class LIR_OpLabel: public LIR_Op { 1231 friend class LIR_OpVisitState; 1232 1233 private: 1234 Label* _label; 1235 public: 1236 LIR_OpLabel(Label* lbl) 1237 : LIR_Op(lir_label, LIR_OprFact::illegalOpr, NULL) 1238 , _label(lbl) {} 1239 Label* label() const { return _label; } 1240 1241 virtual void emit_code(LIR_Assembler* masm); 1242 virtual LIR_OpLabel* as_OpLabel() { return this; } 1243 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1244 }; 1245 1246 // LIR_OpArrayCopy 1247 class LIR_OpArrayCopy: public LIR_Op { 1248 friend class LIR_OpVisitState; 1249 1250 private: 1251 ArrayCopyStub* _stub; 1252 LIR_Opr _src; 1253 LIR_Opr _src_pos; 1254 LIR_Opr _dst; 1255 LIR_Opr _dst_pos; 1256 LIR_Opr _length; 1257 LIR_Opr _tmp; 1258 ciArrayKlass* _expected_type; 1259 int _flags; 1260 1261 public: 1262 enum Flags { 1263 src_null_check = 1 << 0, 1264 dst_null_check = 1 << 1, 1265 src_pos_positive_check = 1 << 2, 1266 dst_pos_positive_check = 1 << 3, 1267 length_positive_check = 1 << 4, 1268 src_range_check = 1 << 5, 1269 dst_range_check = 1 << 6, 1270 type_check = 1 << 7, 1271 overlapping = 1 << 8, 1272 unaligned = 1 << 9, 1273 src_objarray = 1 << 10, 1274 dst_objarray = 1 << 11, 1275 all_flags = (1 << 12) - 1 1276 }; 1277 1278 LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, LIR_Opr tmp, 1279 ciArrayKlass* expected_type, int flags, CodeEmitInfo* info); 1280 1281 LIR_Opr src() const { return _src; } 1282 LIR_Opr src_pos() const { return _src_pos; } 1283 LIR_Opr dst() const { return _dst; } 1284 LIR_Opr dst_pos() const { return _dst_pos; } 1285 LIR_Opr length() const { return _length; } 1286 LIR_Opr tmp() const { return _tmp; } 1287 int flags() const { return _flags; } 1288 ciArrayKlass* expected_type() const { return _expected_type; } 1289 ArrayCopyStub* stub() const { return _stub; } 1290 1291 virtual void emit_code(LIR_Assembler* masm); 1292 virtual LIR_OpArrayCopy* as_OpArrayCopy() { return this; } 1293 void print_instr(outputStream* out) const PRODUCT_RETURN; 1294 }; 1295 1296 1297 // -------------------------------------------------- 1298 // LIR_Op0 1299 // -------------------------------------------------- 1300 class LIR_Op0: public LIR_Op { 1301 friend class LIR_OpVisitState; 1302 1303 public: 1304 LIR_Op0(LIR_Code code) 1305 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) { assert(is_in_range(code, begin_op0, end_op0), "code check"); } 1306 LIR_Op0(LIR_Code code, LIR_Opr result, CodeEmitInfo* info = NULL) 1307 : LIR_Op(code, result, info) { assert(is_in_range(code, begin_op0, end_op0), "code check"); } 1308 1309 virtual void emit_code(LIR_Assembler* masm); 1310 virtual LIR_Op0* as_Op0() { return this; } 1311 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1312 }; 1313 1314 1315 // -------------------------------------------------- 1316 // LIR_Op1 1317 // -------------------------------------------------- 1318 1319 class LIR_Op1: public LIR_Op { 1320 friend class LIR_OpVisitState; 1321 1322 protected: 1323 LIR_Opr _opr; // input operand 1324 BasicType _type; // Operand types 1325 LIR_PatchCode _patch; // only required with patchin (NEEDS_CLEANUP: do we want a special instruction for patching?) 1326 1327 static void print_patch_code(outputStream* out, LIR_PatchCode code); 1328 1329 void set_kind(LIR_MoveKind kind) { 1330 assert(code() == lir_move, "must be"); 1331 _flags = kind; 1332 } 1333 1334 public: 1335 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) 1336 : LIR_Op(code, result, info) 1337 , _opr(opr) 1338 , _patch(patch) 1339 , _type(type) { assert(is_in_range(code, begin_op1, end_op1), "code check"); } 1340 1341 LIR_Op1(LIR_Code code, LIR_Opr opr, LIR_Opr result, BasicType type, LIR_PatchCode patch, CodeEmitInfo* info, LIR_MoveKind kind) 1342 : LIR_Op(code, result, info) 1343 , _opr(opr) 1344 , _patch(patch) 1345 , _type(type) { 1346 assert(code == lir_move, "must be"); 1347 set_kind(kind); 1348 } 1349 1350 LIR_Op1(LIR_Code code, LIR_Opr opr, CodeEmitInfo* info) 1351 : LIR_Op(code, LIR_OprFact::illegalOpr, info) 1352 , _opr(opr) 1353 , _patch(lir_patch_none) 1354 , _type(T_ILLEGAL) { assert(is_in_range(code, begin_op1, end_op1), "code check"); } 1355 1356 LIR_Opr in_opr() const { return _opr; } 1357 LIR_PatchCode patch_code() const { return _patch; } 1358 BasicType type() const { return _type; } 1359 1360 LIR_MoveKind move_kind() const { 1361 assert(code() == lir_move, "must be"); 1362 return (LIR_MoveKind)_flags; 1363 } 1364 1365 virtual void emit_code(LIR_Assembler* masm); 1366 virtual LIR_Op1* as_Op1() { return this; } 1367 virtual const char * name() const PRODUCT_RETURN0; 1368 1369 void set_in_opr(LIR_Opr opr) { _opr = opr; } 1370 1371 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1372 virtual void verify() const; 1373 }; 1374 1375 1376 // for runtime calls 1377 class LIR_OpRTCall: public LIR_OpCall { 1378 friend class LIR_OpVisitState; 1379 1380 private: 1381 LIR_Opr _tmp; 1382 public: 1383 LIR_OpRTCall(address addr, LIR_Opr tmp, 1384 LIR_Opr result, LIR_OprList* arguments, CodeEmitInfo* info = NULL) 1385 : LIR_OpCall(lir_rtcall, addr, result, arguments, info) 1386 , _tmp(tmp) {} 1387 1388 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1389 virtual void emit_code(LIR_Assembler* masm); 1390 virtual LIR_OpRTCall* as_OpRTCall() { return this; } 1391 1392 LIR_Opr tmp() const { return _tmp; } 1393 1394 virtual void verify() const; 1395 }; 1396 1397 1398 class LIR_OpBranch: public LIR_Op { 1399 friend class LIR_OpVisitState; 1400 1401 private: 1402 LIR_Condition _cond; 1403 BasicType _type; 1404 Label* _label; 1405 BlockBegin* _block; // if this is a branch to a block, this is the block 1406 BlockBegin* _ublock; // if this is a float-branch, this is the unorderd block 1407 CodeStub* _stub; // if this is a branch to a stub, this is the stub 1408 1409 public: 1410 LIR_OpBranch(LIR_Condition cond, BasicType type, Label* lbl) 1411 : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*) NULL) 1412 , _cond(cond) 1413 , _type(type) 1414 , _label(lbl) 1415 , _block(NULL) 1416 , _ublock(NULL) 1417 , _stub(NULL) { } 1418 1419 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block); 1420 LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub); 1421 1422 // for unordered comparisons 1423 LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock); 1424 1425 LIR_Condition cond() const { return _cond; } 1426 BasicType type() const { return _type; } 1427 Label* label() const { return _label; } 1428 BlockBegin* block() const { return _block; } 1429 BlockBegin* ublock() const { return _ublock; } 1430 CodeStub* stub() const { return _stub; } 1431 1432 void change_block(BlockBegin* b); 1433 void change_ublock(BlockBegin* b); 1434 void negate_cond(); 1435 1436 virtual void emit_code(LIR_Assembler* masm); 1437 virtual LIR_OpBranch* as_OpBranch() { return this; } 1438 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1439 }; 1440 1441 1442 class ConversionStub; 1443 1444 class LIR_OpConvert: public LIR_Op1 { 1445 friend class LIR_OpVisitState; 1446 1447 private: 1448 Bytecodes::Code _bytecode; 1449 ConversionStub* _stub; 1450 #ifdef PPC 1451 LIR_Opr _tmp1; 1452 LIR_Opr _tmp2; 1453 #endif 1454 1455 public: 1456 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub) 1457 : LIR_Op1(lir_convert, opr, result) 1458 , _stub(stub) 1459 #ifdef PPC 1460 , _tmp1(LIR_OprDesc::illegalOpr()) 1461 , _tmp2(LIR_OprDesc::illegalOpr()) 1462 #endif 1463 , _bytecode(code) {} 1464 1465 #ifdef PPC 1466 LIR_OpConvert(Bytecodes::Code code, LIR_Opr opr, LIR_Opr result, ConversionStub* stub 1467 ,LIR_Opr tmp1, LIR_Opr tmp2) 1468 : LIR_Op1(lir_convert, opr, result) 1469 , _stub(stub) 1470 , _tmp1(tmp1) 1471 , _tmp2(tmp2) 1472 , _bytecode(code) {} 1473 #endif 1474 1475 Bytecodes::Code bytecode() const { return _bytecode; } 1476 ConversionStub* stub() const { return _stub; } 1477 #ifdef PPC 1478 LIR_Opr tmp1() const { return _tmp1; } 1479 LIR_Opr tmp2() const { return _tmp2; } 1480 #endif 1481 1482 virtual void emit_code(LIR_Assembler* masm); 1483 virtual LIR_OpConvert* as_OpConvert() { return this; } 1484 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1485 1486 static void print_bytecode(outputStream* out, Bytecodes::Code code) PRODUCT_RETURN; 1487 }; 1488 1489 1490 // LIR_OpAllocObj 1491 class LIR_OpAllocObj : public LIR_Op1 { 1492 friend class LIR_OpVisitState; 1493 1494 private: 1495 LIR_Opr _tmp1; 1496 LIR_Opr _tmp2; 1497 LIR_Opr _tmp3; 1498 LIR_Opr _tmp4; 1499 int _hdr_size; 1500 int _obj_size; 1501 CodeStub* _stub; 1502 bool _init_check; 1503 1504 public: 1505 LIR_OpAllocObj(LIR_Opr klass, LIR_Opr result, 1506 LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4, 1507 int hdr_size, int obj_size, bool init_check, CodeStub* stub) 1508 : LIR_Op1(lir_alloc_object, klass, result) 1509 , _tmp1(t1) 1510 , _tmp2(t2) 1511 , _tmp3(t3) 1512 , _tmp4(t4) 1513 , _hdr_size(hdr_size) 1514 , _obj_size(obj_size) 1515 , _init_check(init_check) 1516 , _stub(stub) { } 1517 1518 LIR_Opr klass() const { return in_opr(); } 1519 LIR_Opr obj() const { return result_opr(); } 1520 LIR_Opr tmp1() const { return _tmp1; } 1521 LIR_Opr tmp2() const { return _tmp2; } 1522 LIR_Opr tmp3() const { return _tmp3; } 1523 LIR_Opr tmp4() const { return _tmp4; } 1524 int header_size() const { return _hdr_size; } 1525 int object_size() const { return _obj_size; } 1526 bool init_check() const { return _init_check; } 1527 CodeStub* stub() const { return _stub; } 1528 1529 virtual void emit_code(LIR_Assembler* masm); 1530 virtual LIR_OpAllocObj * as_OpAllocObj () { return this; } 1531 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1532 }; 1533 1534 1535 // LIR_OpRoundFP 1536 class LIR_OpRoundFP : public LIR_Op1 { 1537 friend class LIR_OpVisitState; 1538 1539 private: 1540 LIR_Opr _tmp; 1541 1542 public: 1543 LIR_OpRoundFP(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) 1544 : LIR_Op1(lir_roundfp, reg, result) 1545 , _tmp(stack_loc_temp) {} 1546 1547 LIR_Opr tmp() const { return _tmp; } 1548 virtual LIR_OpRoundFP* as_OpRoundFP() { return this; } 1549 void print_instr(outputStream* out) const PRODUCT_RETURN; 1550 }; 1551 1552 // LIR_OpTypeCheck 1553 class LIR_OpTypeCheck: public LIR_Op { 1554 friend class LIR_OpVisitState; 1555 1556 private: 1557 LIR_Opr _object; 1558 LIR_Opr _array; 1559 ciKlass* _klass; 1560 LIR_Opr _tmp1; 1561 LIR_Opr _tmp2; 1562 LIR_Opr _tmp3; 1563 bool _fast_check; 1564 CodeEmitInfo* _info_for_patch; 1565 CodeEmitInfo* _info_for_exception; 1566 CodeStub* _stub; 1567 ciMethod* _profiled_method; 1568 int _profiled_bci; 1569 bool _should_profile; 1570 1571 public: 1572 LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass, 1573 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, 1574 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub); 1575 LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array, 1576 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception); 1577 1578 LIR_Opr object() const { return _object; } 1579 LIR_Opr array() const { assert(code() == lir_store_check, "not valid"); return _array; } 1580 LIR_Opr tmp1() const { return _tmp1; } 1581 LIR_Opr tmp2() const { return _tmp2; } 1582 LIR_Opr tmp3() const { return _tmp3; } 1583 ciKlass* klass() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _klass; } 1584 bool fast_check() const { assert(code() == lir_instanceof || code() == lir_checkcast, "not valid"); return _fast_check; } 1585 CodeEmitInfo* info_for_patch() const { return _info_for_patch; } 1586 CodeEmitInfo* info_for_exception() const { return _info_for_exception; } 1587 CodeStub* stub() const { return _stub; } 1588 1589 // MethodData* profiling 1590 void set_profiled_method(ciMethod *method) { _profiled_method = method; } 1591 void set_profiled_bci(int bci) { _profiled_bci = bci; } 1592 void set_should_profile(bool b) { _should_profile = b; } 1593 ciMethod* profiled_method() const { return _profiled_method; } 1594 int profiled_bci() const { return _profiled_bci; } 1595 bool should_profile() const { return _should_profile; } 1596 1597 virtual void emit_code(LIR_Assembler* masm); 1598 virtual LIR_OpTypeCheck* as_OpTypeCheck() { return this; } 1599 void print_instr(outputStream* out) const PRODUCT_RETURN; 1600 }; 1601 1602 // LIR_Op2 1603 class LIR_Op2: public LIR_Op { 1604 friend class LIR_OpVisitState; 1605 1606 int _fpu_stack_size; // for sin/cos implementation on Intel 1607 1608 protected: 1609 LIR_Opr _opr1; 1610 LIR_Opr _opr2; 1611 BasicType _type; 1612 LIR_Opr _tmp1; 1613 LIR_Opr _tmp2; 1614 LIR_Opr _tmp3; 1615 LIR_Opr _tmp4; 1616 LIR_Opr _tmp5; 1617 LIR_Condition _condition; 1618 1619 void verify() const; 1620 1621 public: 1622 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, CodeEmitInfo* info = NULL) 1623 : LIR_Op(code, LIR_OprFact::illegalOpr, info) 1624 , _opr1(opr1) 1625 , _opr2(opr2) 1626 , _type(T_ILLEGAL) 1627 , _condition(condition) 1628 , _fpu_stack_size(0) 1629 , _tmp1(LIR_OprFact::illegalOpr) 1630 , _tmp2(LIR_OprFact::illegalOpr) 1631 , _tmp3(LIR_OprFact::illegalOpr) 1632 , _tmp4(LIR_OprFact::illegalOpr) 1633 , _tmp5(LIR_OprFact::illegalOpr) { 1634 assert(code == lir_cmp || code == lir_assert, "code check"); 1635 } 1636 1637 LIR_Op2(LIR_Code code, LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, BasicType type) 1638 : LIR_Op(code, result, NULL) 1639 , _opr1(opr1) 1640 , _opr2(opr2) 1641 , _type(type) 1642 , _condition(condition) 1643 , _fpu_stack_size(0) 1644 , _tmp1(LIR_OprFact::illegalOpr) 1645 , _tmp2(LIR_OprFact::illegalOpr) 1646 , _tmp3(LIR_OprFact::illegalOpr) 1647 , _tmp4(LIR_OprFact::illegalOpr) 1648 , _tmp5(LIR_OprFact::illegalOpr) { 1649 assert(code == lir_cmove, "code check"); 1650 assert(type != T_ILLEGAL, "cmove should have type"); 1651 } 1652 1653 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result = LIR_OprFact::illegalOpr, 1654 CodeEmitInfo* info = NULL, BasicType type = T_ILLEGAL) 1655 : LIR_Op(code, result, info) 1656 , _opr1(opr1) 1657 , _opr2(opr2) 1658 , _type(type) 1659 , _condition(lir_cond_unknown) 1660 , _fpu_stack_size(0) 1661 , _tmp1(LIR_OprFact::illegalOpr) 1662 , _tmp2(LIR_OprFact::illegalOpr) 1663 , _tmp3(LIR_OprFact::illegalOpr) 1664 , _tmp4(LIR_OprFact::illegalOpr) 1665 , _tmp5(LIR_OprFact::illegalOpr) { 1666 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check"); 1667 } 1668 1669 LIR_Op2(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, LIR_Opr tmp1, LIR_Opr tmp2 = LIR_OprFact::illegalOpr, 1670 LIR_Opr tmp3 = LIR_OprFact::illegalOpr, LIR_Opr tmp4 = LIR_OprFact::illegalOpr, LIR_Opr tmp5 = LIR_OprFact::illegalOpr) 1671 : LIR_Op(code, result, NULL) 1672 , _opr1(opr1) 1673 , _opr2(opr2) 1674 , _type(T_ILLEGAL) 1675 , _condition(lir_cond_unknown) 1676 , _fpu_stack_size(0) 1677 , _tmp1(tmp1) 1678 , _tmp2(tmp2) 1679 , _tmp3(tmp3) 1680 , _tmp4(tmp4) 1681 , _tmp5(tmp5) { 1682 assert(code != lir_cmp && is_in_range(code, begin_op2, end_op2), "code check"); 1683 } 1684 1685 LIR_Opr in_opr1() const { return _opr1; } 1686 LIR_Opr in_opr2() const { return _opr2; } 1687 BasicType type() const { return _type; } 1688 LIR_Opr tmp1_opr() const { return _tmp1; } 1689 LIR_Opr tmp2_opr() const { return _tmp2; } 1690 LIR_Opr tmp3_opr() const { return _tmp3; } 1691 LIR_Opr tmp4_opr() const { return _tmp4; } 1692 LIR_Opr tmp5_opr() const { return _tmp5; } 1693 LIR_Condition condition() const { 1694 assert(code() == lir_cmp || code() == lir_cmove || code() == lir_assert, "only valid for cmp and cmove and assert"); return _condition; 1695 } 1696 void set_condition(LIR_Condition condition) { 1697 assert(code() == lir_cmp || code() == lir_cmove, "only valid for cmp and cmove"); _condition = condition; 1698 } 1699 1700 void set_fpu_stack_size(int size) { _fpu_stack_size = size; } 1701 int fpu_stack_size() const { return _fpu_stack_size; } 1702 1703 void set_in_opr1(LIR_Opr opr) { _opr1 = opr; } 1704 void set_in_opr2(LIR_Opr opr) { _opr2 = opr; } 1705 1706 virtual void emit_code(LIR_Assembler* masm); 1707 virtual LIR_Op2* as_Op2() { return this; } 1708 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1709 }; 1710 1711 class LIR_OpAllocArray : public LIR_Op { 1712 friend class LIR_OpVisitState; 1713 1714 private: 1715 LIR_Opr _klass; 1716 LIR_Opr _len; 1717 LIR_Opr _tmp1; 1718 LIR_Opr _tmp2; 1719 LIR_Opr _tmp3; 1720 LIR_Opr _tmp4; 1721 BasicType _type; 1722 CodeStub* _stub; 1723 1724 public: 1725 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) 1726 : LIR_Op(lir_alloc_array, result, NULL) 1727 , _klass(klass) 1728 , _len(len) 1729 , _tmp1(t1) 1730 , _tmp2(t2) 1731 , _tmp3(t3) 1732 , _tmp4(t4) 1733 , _type(type) 1734 , _stub(stub) {} 1735 1736 LIR_Opr klass() const { return _klass; } 1737 LIR_Opr len() const { return _len; } 1738 LIR_Opr obj() const { return result_opr(); } 1739 LIR_Opr tmp1() const { return _tmp1; } 1740 LIR_Opr tmp2() const { return _tmp2; } 1741 LIR_Opr tmp3() const { return _tmp3; } 1742 LIR_Opr tmp4() const { return _tmp4; } 1743 BasicType type() const { return _type; } 1744 CodeStub* stub() const { return _stub; } 1745 1746 virtual void emit_code(LIR_Assembler* masm); 1747 virtual LIR_OpAllocArray * as_OpAllocArray () { return this; } 1748 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1749 }; 1750 1751 1752 class LIR_Op3: public LIR_Op { 1753 friend class LIR_OpVisitState; 1754 1755 private: 1756 LIR_Opr _opr1; 1757 LIR_Opr _opr2; 1758 LIR_Opr _opr3; 1759 public: 1760 LIR_Op3(LIR_Code code, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr opr3, LIR_Opr result, CodeEmitInfo* info = NULL) 1761 : LIR_Op(code, result, info) 1762 , _opr1(opr1) 1763 , _opr2(opr2) 1764 , _opr3(opr3) { assert(is_in_range(code, begin_op3, end_op3), "code check"); } 1765 LIR_Opr in_opr1() const { return _opr1; } 1766 LIR_Opr in_opr2() const { return _opr2; } 1767 LIR_Opr in_opr3() const { return _opr3; } 1768 1769 virtual void emit_code(LIR_Assembler* masm); 1770 virtual LIR_Op3* as_Op3() { return this; } 1771 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1772 }; 1773 1774 1775 //-------------------------------- 1776 class LabelObj: public CompilationResourceObj { 1777 private: 1778 Label _label; 1779 public: 1780 LabelObj() {} 1781 Label* label() { return &_label; } 1782 }; 1783 1784 1785 class LIR_OpLock: public LIR_Op { 1786 friend class LIR_OpVisitState; 1787 1788 private: 1789 LIR_Opr _hdr; 1790 LIR_Opr _obj; 1791 LIR_Opr _lock; 1792 LIR_Opr _scratch; 1793 CodeStub* _stub; 1794 public: 1795 LIR_OpLock(LIR_Code code, LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info) 1796 : LIR_Op(code, LIR_OprFact::illegalOpr, info) 1797 , _hdr(hdr) 1798 , _obj(obj) 1799 , _lock(lock) 1800 , _scratch(scratch) 1801 , _stub(stub) {} 1802 1803 LIR_Opr hdr_opr() const { return _hdr; } 1804 LIR_Opr obj_opr() const { return _obj; } 1805 LIR_Opr lock_opr() const { return _lock; } 1806 LIR_Opr scratch_opr() const { return _scratch; } 1807 CodeStub* stub() const { return _stub; } 1808 1809 virtual void emit_code(LIR_Assembler* masm); 1810 virtual LIR_OpLock* as_OpLock() { return this; } 1811 void print_instr(outputStream* out) const PRODUCT_RETURN; 1812 }; 1813 1814 1815 class LIR_OpDelay: public LIR_Op { 1816 friend class LIR_OpVisitState; 1817 1818 private: 1819 LIR_Op* _op; 1820 1821 public: 1822 LIR_OpDelay(LIR_Op* op, CodeEmitInfo* info): 1823 LIR_Op(lir_delay_slot, LIR_OprFact::illegalOpr, info), 1824 _op(op) { 1825 assert(op->code() == lir_nop || LIRFillDelaySlots, "should be filling with nops"); 1826 } 1827 virtual void emit_code(LIR_Assembler* masm); 1828 virtual LIR_OpDelay* as_OpDelay() { return this; } 1829 void print_instr(outputStream* out) const PRODUCT_RETURN; 1830 LIR_Op* delay_op() const { return _op; } 1831 CodeEmitInfo* call_info() const { return info(); } 1832 }; 1833 1834 #ifdef ASSERT 1835 // LIR_OpAssert 1836 class LIR_OpAssert : public LIR_Op2 { 1837 friend class LIR_OpVisitState; 1838 1839 private: 1840 const char* _msg; 1841 bool _halt; 1842 1843 public: 1844 LIR_OpAssert(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, const char* msg, bool halt) 1845 : LIR_Op2(lir_assert, condition, opr1, opr2) 1846 , _halt(halt) 1847 , _msg(msg) { 1848 } 1849 1850 const char* msg() const { return _msg; } 1851 bool halt() const { return _halt; } 1852 1853 virtual void emit_code(LIR_Assembler* masm); 1854 virtual LIR_OpAssert* as_OpAssert() { return this; } 1855 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1856 }; 1857 #endif 1858 1859 // LIR_OpCompareAndSwap 1860 class LIR_OpCompareAndSwap : public LIR_Op { 1861 friend class LIR_OpVisitState; 1862 1863 private: 1864 LIR_Opr _addr; 1865 LIR_Opr _cmp_value; 1866 LIR_Opr _new_value; 1867 LIR_Opr _tmp1; 1868 LIR_Opr _tmp2; 1869 1870 public: 1871 LIR_OpCompareAndSwap(LIR_Code code, LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 1872 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) 1873 : LIR_Op(code, result, NULL) // no result, no info 1874 , _addr(addr) 1875 , _cmp_value(cmp_value) 1876 , _new_value(new_value) 1877 , _tmp1(t1) 1878 , _tmp2(t2) { } 1879 1880 LIR_Opr addr() const { return _addr; } 1881 LIR_Opr cmp_value() const { return _cmp_value; } 1882 LIR_Opr new_value() const { return _new_value; } 1883 LIR_Opr tmp1() const { return _tmp1; } 1884 LIR_Opr tmp2() const { return _tmp2; } 1885 1886 virtual void emit_code(LIR_Assembler* masm); 1887 virtual LIR_OpCompareAndSwap * as_OpCompareAndSwap () { return this; } 1888 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1889 }; 1890 1891 // LIR_OpProfileCall 1892 class LIR_OpProfileCall : public LIR_Op { 1893 friend class LIR_OpVisitState; 1894 1895 private: 1896 ciMethod* _profiled_method; 1897 int _profiled_bci; 1898 ciMethod* _profiled_callee; 1899 LIR_Opr _mdo; 1900 LIR_Opr _recv; 1901 LIR_Opr _tmp1; 1902 ciKlass* _known_holder; 1903 1904 public: 1905 // Destroys recv 1906 LIR_OpProfileCall(LIR_Code code, ciMethod* profiled_method, int profiled_bci, ciMethod* profiled_callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* known_holder) 1907 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) // no result, no info 1908 , _profiled_method(profiled_method) 1909 , _profiled_bci(profiled_bci) 1910 , _profiled_callee(profiled_callee) 1911 , _mdo(mdo) 1912 , _recv(recv) 1913 , _tmp1(t1) 1914 , _known_holder(known_holder) { } 1915 1916 ciMethod* profiled_method() const { return _profiled_method; } 1917 int profiled_bci() const { return _profiled_bci; } 1918 ciMethod* profiled_callee() const { return _profiled_callee; } 1919 LIR_Opr mdo() const { return _mdo; } 1920 LIR_Opr recv() const { return _recv; } 1921 LIR_Opr tmp1() const { return _tmp1; } 1922 ciKlass* known_holder() const { return _known_holder; } 1923 1924 virtual void emit_code(LIR_Assembler* masm); 1925 virtual LIR_OpProfileCall* as_OpProfileCall() { return this; } 1926 virtual void print_instr(outputStream* out) const PRODUCT_RETURN; 1927 }; 1928 1929 class LIR_InsertionBuffer; 1930 1931 //--------------------------------LIR_List--------------------------------------------------- 1932 // Maintains a list of LIR instructions (one instance of LIR_List per basic block) 1933 // The LIR instructions are appended by the LIR_List class itself; 1934 // 1935 // Notes: 1936 // - all offsets are(should be) in bytes 1937 // - local positions are specified with an offset, with offset 0 being local 0 1938 1939 class LIR_List: public CompilationResourceObj { 1940 private: 1941 LIR_OpList _operations; 1942 1943 Compilation* _compilation; 1944 #ifndef PRODUCT 1945 BlockBegin* _block; 1946 #endif 1947 #ifdef ASSERT 1948 const char * _file; 1949 int _line; 1950 #endif 1951 1952 void append(LIR_Op* op) { 1953 if (op->source() == NULL) 1954 op->set_source(_compilation->current_instruction()); 1955 #ifndef PRODUCT 1956 if (PrintIRWithLIR) { 1957 _compilation->maybe_print_current_instruction(); 1958 op->print(); tty->cr(); 1959 } 1960 #endif // PRODUCT 1961 1962 _operations.append(op); 1963 1964 #ifdef ASSERT 1965 op->verify(); 1966 op->set_file_and_line(_file, _line); 1967 _file = NULL; 1968 _line = 0; 1969 #endif 1970 } 1971 1972 public: 1973 LIR_List(Compilation* compilation, BlockBegin* block = NULL); 1974 1975 #ifdef ASSERT 1976 void set_file_and_line(const char * file, int line); 1977 #endif 1978 1979 //---------- accessors --------------- 1980 LIR_OpList* instructions_list() { return &_operations; } 1981 int length() const { return _operations.length(); } 1982 LIR_Op* at(int i) const { return _operations.at(i); } 1983 1984 NOT_PRODUCT(BlockBegin* block() const { return _block; }); 1985 1986 // insert LIR_Ops in buffer to right places in LIR_List 1987 void append(LIR_InsertionBuffer* buffer); 1988 1989 //---------- mutators --------------- 1990 void insert_before(int i, LIR_List* op_list) { _operations.insert_before(i, op_list->instructions_list()); } 1991 void insert_before(int i, LIR_Op* op) { _operations.insert_before(i, op); } 1992 void remove_at(int i) { _operations.remove_at(i); } 1993 1994 //---------- printing ------------- 1995 void print_instructions() PRODUCT_RETURN; 1996 1997 1998 //---------- instructions ------------- 1999 void call_opt_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result, 2000 address dest, LIR_OprList* arguments, 2001 CodeEmitInfo* info) { 2002 append(new LIR_OpJavaCall(lir_optvirtual_call, method, receiver, result, dest, arguments, info)); 2003 } 2004 void call_static(ciMethod* method, LIR_Opr result, 2005 address dest, LIR_OprList* arguments, CodeEmitInfo* info) { 2006 append(new LIR_OpJavaCall(lir_static_call, method, LIR_OprFact::illegalOpr, result, dest, arguments, info)); 2007 } 2008 void call_icvirtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result, 2009 address dest, LIR_OprList* arguments, CodeEmitInfo* info) { 2010 append(new LIR_OpJavaCall(lir_icvirtual_call, method, receiver, result, dest, arguments, info)); 2011 } 2012 void call_virtual(ciMethod* method, LIR_Opr receiver, LIR_Opr result, 2013 intptr_t vtable_offset, LIR_OprList* arguments, CodeEmitInfo* info) { 2014 append(new LIR_OpJavaCall(lir_virtual_call, method, receiver, result, vtable_offset, arguments, info)); 2015 } 2016 void call_dynamic(ciMethod* method, LIR_Opr receiver, LIR_Opr result, 2017 address dest, LIR_OprList* arguments, CodeEmitInfo* info) { 2018 append(new LIR_OpJavaCall(lir_dynamic_call, method, receiver, result, dest, arguments, info)); 2019 } 2020 2021 void get_thread(LIR_Opr result) { append(new LIR_Op0(lir_get_thread, result)); } 2022 void word_align() { append(new LIR_Op0(lir_word_align)); } 2023 void membar() { append(new LIR_Op0(lir_membar)); } 2024 void membar_acquire() { append(new LIR_Op0(lir_membar_acquire)); } 2025 void membar_release() { append(new LIR_Op0(lir_membar_release)); } 2026 void membar_loadload() { append(new LIR_Op0(lir_membar_loadload)); } 2027 void membar_storestore() { append(new LIR_Op0(lir_membar_storestore)); } 2028 void membar_loadstore() { append(new LIR_Op0(lir_membar_loadstore)); } 2029 void membar_storeload() { append(new LIR_Op0(lir_membar_storeload)); } 2030 2031 void nop() { append(new LIR_Op0(lir_nop)); } 2032 void build_frame() { append(new LIR_Op0(lir_build_frame)); } 2033 2034 void std_entry(LIR_Opr receiver) { append(new LIR_Op0(lir_std_entry, receiver)); } 2035 void osr_entry(LIR_Opr osrPointer) { append(new LIR_Op0(lir_osr_entry, osrPointer)); } 2036 2037 void branch_destination(Label* lbl) { append(new LIR_OpLabel(lbl)); } 2038 2039 void negate(LIR_Opr from, LIR_Opr to) { append(new LIR_Op1(lir_neg, from, to)); } 2040 void leal(LIR_Opr from, LIR_Opr result_reg) { append(new LIR_Op1(lir_leal, from, result_reg)); } 2041 2042 // result is a stack location for old backend and vreg for UseLinearScan 2043 // stack_loc_temp is an illegal register for old backend 2044 void roundfp(LIR_Opr reg, LIR_Opr stack_loc_temp, LIR_Opr result) { append(new LIR_OpRoundFP(reg, stack_loc_temp, result)); } 2045 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)); } 2046 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)); } 2047 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)); } 2048 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)); } 2049 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)); } 2050 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)); } 2051 void move_wide(LIR_Address* src, LIR_Opr dst, CodeEmitInfo* info = NULL) { 2052 if (UseCompressedOops) { 2053 append(new LIR_Op1(lir_move, LIR_OprFact::address(src), dst, src->type(), lir_patch_none, info, lir_move_wide)); 2054 } else { 2055 move(src, dst, info); 2056 } 2057 } 2058 void move_wide(LIR_Opr src, LIR_Address* dst, CodeEmitInfo* info = NULL) { 2059 if (UseCompressedOops) { 2060 append(new LIR_Op1(lir_move, src, LIR_OprFact::address(dst), dst->type(), lir_patch_none, info, lir_move_wide)); 2061 } else { 2062 move(src, dst, info); 2063 } 2064 } 2065 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)); } 2066 2067 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)); } 2068 void oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info); 2069 2070 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)); } 2071 void klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info); 2072 2073 void return_op(LIR_Opr result) { append(new LIR_Op1(lir_return, result)); } 2074 2075 void safepoint(LIR_Opr tmp, CodeEmitInfo* info) { append(new LIR_Op1(lir_safepoint, tmp, info)); } 2076 2077 #ifdef PPC 2078 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)); } 2079 #endif 2080 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)); } 2081 2082 void logical_and (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_and, left, right, dst)); } 2083 void logical_or (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_or, left, right, dst)); } 2084 void logical_xor (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_logic_xor, left, right, dst)); } 2085 2086 void pack64(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_pack64, src, dst, T_LONG, lir_patch_none, NULL)); } 2087 void unpack64(LIR_Opr src, LIR_Opr dst) { append(new LIR_Op1(lir_unpack64, src, dst, T_LONG, lir_patch_none, NULL)); } 2088 2089 void null_check(LIR_Opr opr, CodeEmitInfo* info) { append(new LIR_Op1(lir_null_check, opr, info)); } 2090 void throw_exception(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) { 2091 append(new LIR_Op2(lir_throw, exceptionPC, exceptionOop, LIR_OprFact::illegalOpr, info)); 2092 } 2093 void unwind_exception(LIR_Opr exceptionOop) { 2094 append(new LIR_Op1(lir_unwind, exceptionOop)); 2095 } 2096 2097 void compare_to (LIR_Opr left, LIR_Opr right, LIR_Opr dst) { 2098 append(new LIR_Op2(lir_compare_to, left, right, dst)); 2099 } 2100 2101 void push(LIR_Opr opr) { append(new LIR_Op1(lir_push, opr)); } 2102 void pop(LIR_Opr reg) { append(new LIR_Op1(lir_pop, reg)); } 2103 2104 void cmp(LIR_Condition condition, LIR_Opr left, LIR_Opr right, CodeEmitInfo* info = NULL) { 2105 append(new LIR_Op2(lir_cmp, condition, left, right, info)); 2106 } 2107 void cmp(LIR_Condition condition, LIR_Opr left, int right, CodeEmitInfo* info = NULL) { 2108 cmp(condition, left, LIR_OprFact::intConst(right), info); 2109 } 2110 2111 void cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info); 2112 void cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info); 2113 2114 void cmove(LIR_Condition condition, LIR_Opr src1, LIR_Opr src2, LIR_Opr dst, BasicType type) { 2115 append(new LIR_Op2(lir_cmove, condition, src1, src2, dst, type)); 2116 } 2117 2118 void cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 2119 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr); 2120 void cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 2121 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr); 2122 void cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 2123 LIR_Opr t1, LIR_Opr t2, LIR_Opr result = LIR_OprFact::illegalOpr); 2124 2125 void abs (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_abs , from, tmp, to)); } 2126 void sqrt(LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_sqrt, from, tmp, to)); } 2127 void log (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log, from, LIR_OprFact::illegalOpr, to, tmp)); } 2128 void log10 (LIR_Opr from, LIR_Opr to, LIR_Opr tmp) { append(new LIR_Op2(lir_log10, from, LIR_OprFact::illegalOpr, to, tmp)); } 2129 void sin (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_sin , from, tmp1, to, tmp2)); } 2130 void cos (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_cos , from, tmp1, to, tmp2)); } 2131 void tan (LIR_Opr from, LIR_Opr to, LIR_Opr tmp1, LIR_Opr tmp2) { append(new LIR_Op2(lir_tan , from, tmp1, to, tmp2)); } 2132 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)); } 2133 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)); } 2134 2135 void add (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_add, left, right, res)); } 2136 void sub (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_sub, left, right, res, info)); } 2137 void mul (LIR_Opr left, LIR_Opr right, LIR_Opr res) { append(new LIR_Op2(lir_mul, left, right, res)); } 2138 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)); } 2139 void div (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_div, left, right, res, info)); } 2140 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)); } 2141 void rem (LIR_Opr left, LIR_Opr right, LIR_Opr res, CodeEmitInfo* info = NULL) { append(new LIR_Op2(lir_rem, left, right, res, info)); } 2142 2143 void volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2144 void volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code); 2145 2146 void load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none); 2147 2148 void prefetch(LIR_Address* addr, bool is_store); 2149 2150 void store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2151 void store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2152 void store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info = NULL, LIR_PatchCode patch_code = lir_patch_none); 2153 void volatile_store_mem_reg(LIR_Opr src, LIR_Address* address, CodeEmitInfo* info, LIR_PatchCode patch_code = lir_patch_none); 2154 void volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code); 2155 2156 void idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2157 void idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2158 void irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2159 void irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info); 2160 2161 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); 2162 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); 2163 2164 // jump is an unconditional branch 2165 void jump(BlockBegin* block) { 2166 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, block)); 2167 } 2168 void jump(CodeStub* stub) { 2169 append(new LIR_OpBranch(lir_cond_always, T_ILLEGAL, stub)); 2170 } 2171 void branch(LIR_Condition cond, BasicType type, Label* lbl) { append(new LIR_OpBranch(cond, type, lbl)); } 2172 void branch(LIR_Condition cond, BasicType type, BlockBegin* block) { 2173 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons"); 2174 append(new LIR_OpBranch(cond, type, block)); 2175 } 2176 void branch(LIR_Condition cond, BasicType type, CodeStub* stub) { 2177 assert(type != T_FLOAT && type != T_DOUBLE, "no fp comparisons"); 2178 append(new LIR_OpBranch(cond, type, stub)); 2179 } 2180 void branch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* unordered) { 2181 assert(type == T_FLOAT || type == T_DOUBLE, "fp comparisons only"); 2182 append(new LIR_OpBranch(cond, type, block, unordered)); 2183 } 2184 2185 void shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp); 2186 void shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp); 2187 void unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp); 2188 2189 void shift_left(LIR_Opr value, int count, LIR_Opr dst) { shift_left(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); } 2190 void shift_right(LIR_Opr value, int count, LIR_Opr dst) { shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); } 2191 void unsigned_shift_right(LIR_Opr value, int count, LIR_Opr dst) { unsigned_shift_right(value, LIR_OprFact::intConst(count), dst, LIR_OprFact::illegalOpr); } 2192 2193 void lcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst) { append(new LIR_Op2(lir_cmp_l2i, left, right, dst)); } 2194 void fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less); 2195 2196 void call_runtime_leaf(address routine, LIR_Opr tmp, LIR_Opr result, LIR_OprList* arguments) { 2197 append(new LIR_OpRTCall(routine, tmp, result, arguments)); 2198 } 2199 2200 void call_runtime(address routine, LIR_Opr tmp, LIR_Opr result, 2201 LIR_OprList* arguments, CodeEmitInfo* info) { 2202 append(new LIR_OpRTCall(routine, tmp, result, arguments, info)); 2203 } 2204 2205 void load_stack_address_monitor(int monitor_ix, LIR_Opr dst) { append(new LIR_Op1(lir_monaddr, LIR_OprFact::intConst(monitor_ix), dst)); } 2206 void unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub); 2207 void lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info); 2208 2209 void set_24bit_fpu() { append(new LIR_Op0(lir_24bit_FPU )); } 2210 void restore_fpu() { append(new LIR_Op0(lir_reset_FPU )); } 2211 void breakpoint() { append(new LIR_Op0(lir_breakpoint)); } 2212 2213 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)); } 2214 2215 void fpop_raw() { append(new LIR_Op0(lir_fpop_raw)); } 2216 2217 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); 2218 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); 2219 2220 void checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass, 2221 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, 2222 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub, 2223 ciMethod* profiled_method, int profiled_bci); 2224 // MethodData* profiling 2225 void profile_call(ciMethod* method, int bci, ciMethod* callee, LIR_Opr mdo, LIR_Opr recv, LIR_Opr t1, ciKlass* cha_klass) { 2226 append(new LIR_OpProfileCall(lir_profile_call, method, bci, callee, mdo, recv, t1, cha_klass)); 2227 } 2228 2229 void xadd(LIR_Opr src, LIR_Opr add, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xadd, src, add, res, tmp)); } 2230 void xchg(LIR_Opr src, LIR_Opr set, LIR_Opr res, LIR_Opr tmp) { append(new LIR_Op2(lir_xchg, src, set, res, tmp)); } 2231 #ifdef ASSERT 2232 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)); } 2233 #endif 2234 }; 2235 2236 void print_LIR(BlockList* blocks); 2237 2238 class LIR_InsertionBuffer : public CompilationResourceObj { 2239 private: 2240 LIR_List* _lir; // the lir list where ops of this buffer should be inserted later (NULL when uninitialized) 2241 2242 // list of insertion points. index and count are stored alternately: 2243 // _index_and_count[i * 2]: the index into lir list where "count" ops should be inserted 2244 // _index_and_count[i * 2 + 1]: the number of ops to be inserted at index 2245 intStack _index_and_count; 2246 2247 // the LIR_Ops to be inserted 2248 LIR_OpList _ops; 2249 2250 void append_new(int index, int count) { _index_and_count.append(index); _index_and_count.append(count); } 2251 void set_index_at(int i, int value) { _index_and_count.at_put((i << 1), value); } 2252 void set_count_at(int i, int value) { _index_and_count.at_put((i << 1) + 1, value); } 2253 2254 #ifdef ASSERT 2255 void verify(); 2256 #endif 2257 public: 2258 LIR_InsertionBuffer() : _lir(NULL), _index_and_count(8), _ops(8) { } 2259 2260 // must be called before using the insertion buffer 2261 void init(LIR_List* lir) { assert(!initialized(), "already initialized"); _lir = lir; _index_and_count.clear(); _ops.clear(); } 2262 bool initialized() const { return _lir != NULL; } 2263 // called automatically when the buffer is appended to the LIR_List 2264 void finish() { _lir = NULL; } 2265 2266 // accessors 2267 LIR_List* lir_list() const { return _lir; } 2268 int number_of_insertion_points() const { return _index_and_count.length() >> 1; } 2269 int index_at(int i) const { return _index_and_count.at((i << 1)); } 2270 int count_at(int i) const { return _index_and_count.at((i << 1) + 1); } 2271 2272 int number_of_ops() const { return _ops.length(); } 2273 LIR_Op* op_at(int i) const { return _ops.at(i); } 2274 2275 // append an instruction to the buffer 2276 void append(int index, LIR_Op* op); 2277 2278 // instruction 2279 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)); } 2280 }; 2281 2282 2283 // 2284 // LIR_OpVisitState is used for manipulating LIR_Ops in an abstract way. 2285 // Calling a LIR_Op's visit function with a LIR_OpVisitState causes 2286 // information about the input, output and temporaries used by the 2287 // op to be recorded. It also records whether the op has call semantics 2288 // and also records all the CodeEmitInfos used by this op. 2289 // 2290 2291 2292 class LIR_OpVisitState: public StackObj { 2293 public: 2294 typedef enum { inputMode, firstMode = inputMode, tempMode, outputMode, numModes, invalidMode = -1 } OprMode; 2295 2296 enum { 2297 maxNumberOfOperands = 20, 2298 maxNumberOfInfos = 4 2299 }; 2300 2301 private: 2302 LIR_Op* _op; 2303 2304 // optimization: the operands and infos are not stored in a variable-length 2305 // list, but in a fixed-size array to save time of size checks and resizing 2306 int _oprs_len[numModes]; 2307 LIR_Opr* _oprs_new[numModes][maxNumberOfOperands]; 2308 int _info_len; 2309 CodeEmitInfo* _info_new[maxNumberOfInfos]; 2310 2311 bool _has_call; 2312 bool _has_slow_case; 2313 2314 2315 // only include register operands 2316 // addresses are decomposed to the base and index registers 2317 // constants and stack operands are ignored 2318 void append(LIR_Opr& opr, OprMode mode) { 2319 assert(opr->is_valid(), "should not call this otherwise"); 2320 assert(mode >= 0 && mode < numModes, "bad mode"); 2321 2322 if (opr->is_register()) { 2323 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow"); 2324 _oprs_new[mode][_oprs_len[mode]++] = &opr; 2325 2326 } else if (opr->is_pointer()) { 2327 LIR_Address* address = opr->as_address_ptr(); 2328 if (address != NULL) { 2329 // special handling for addresses: add base and index register of the address 2330 // both are always input operands or temp if we want to extend 2331 // their liveness! 2332 if (mode == outputMode) { 2333 mode = inputMode; 2334 } 2335 assert (mode == inputMode || mode == tempMode, "input or temp only for addresses"); 2336 if (address->_base->is_valid()) { 2337 assert(address->_base->is_register(), "must be"); 2338 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow"); 2339 _oprs_new[mode][_oprs_len[mode]++] = &address->_base; 2340 } 2341 if (address->_index->is_valid()) { 2342 assert(address->_index->is_register(), "must be"); 2343 assert(_oprs_len[mode] < maxNumberOfOperands, "array overflow"); 2344 _oprs_new[mode][_oprs_len[mode]++] = &address->_index; 2345 } 2346 2347 } else { 2348 assert(opr->is_constant(), "constant operands are not processed"); 2349 } 2350 } else { 2351 assert(opr->is_stack(), "stack operands are not processed"); 2352 } 2353 } 2354 2355 void append(CodeEmitInfo* info) { 2356 assert(info != NULL, "should not call this otherwise"); 2357 assert(_info_len < maxNumberOfInfos, "array overflow"); 2358 _info_new[_info_len++] = info; 2359 } 2360 2361 public: 2362 LIR_OpVisitState() { reset(); } 2363 2364 LIR_Op* op() const { return _op; } 2365 void set_op(LIR_Op* op) { reset(); _op = op; } 2366 2367 bool has_call() const { return _has_call; } 2368 bool has_slow_case() const { return _has_slow_case; } 2369 2370 void reset() { 2371 _op = NULL; 2372 _has_call = false; 2373 _has_slow_case = false; 2374 2375 _oprs_len[inputMode] = 0; 2376 _oprs_len[tempMode] = 0; 2377 _oprs_len[outputMode] = 0; 2378 _info_len = 0; 2379 } 2380 2381 2382 int opr_count(OprMode mode) const { 2383 assert(mode >= 0 && mode < numModes, "bad mode"); 2384 return _oprs_len[mode]; 2385 } 2386 2387 LIR_Opr opr_at(OprMode mode, int index) const { 2388 assert(mode >= 0 && mode < numModes, "bad mode"); 2389 assert(index >= 0 && index < _oprs_len[mode], "index out of bound"); 2390 return *_oprs_new[mode][index]; 2391 } 2392 2393 void set_opr_at(OprMode mode, int index, LIR_Opr opr) const { 2394 assert(mode >= 0 && mode < numModes, "bad mode"); 2395 assert(index >= 0 && index < _oprs_len[mode], "index out of bound"); 2396 *_oprs_new[mode][index] = opr; 2397 } 2398 2399 int info_count() const { 2400 return _info_len; 2401 } 2402 2403 CodeEmitInfo* info_at(int index) const { 2404 assert(index < _info_len, "index out of bounds"); 2405 return _info_new[index]; 2406 } 2407 2408 XHandlers* all_xhandler(); 2409 2410 // collects all register operands of the instruction 2411 void visit(LIR_Op* op); 2412 2413 #ifdef ASSERT 2414 // check that an operation has no operands 2415 bool no_operands(LIR_Op* op); 2416 #endif 2417 2418 // LIR_Op visitor functions use these to fill in the state 2419 void do_input(LIR_Opr& opr) { append(opr, LIR_OpVisitState::inputMode); } 2420 void do_output(LIR_Opr& opr) { append(opr, LIR_OpVisitState::outputMode); } 2421 void do_temp(LIR_Opr& opr) { append(opr, LIR_OpVisitState::tempMode); } 2422 void do_info(CodeEmitInfo* info) { append(info); } 2423 2424 void do_stub(CodeStub* stub); 2425 void do_call() { _has_call = true; } 2426 void do_slow_case() { _has_slow_case = true; } 2427 void do_slow_case(CodeEmitInfo* info) { 2428 _has_slow_case = true; 2429 append(info); 2430 } 2431 }; 2432 2433 2434 inline LIR_Opr LIR_OprDesc::illegalOpr() { return LIR_OprFact::illegalOpr; }; 2435 2436 #endif // SHARE_VM_C1_C1_LIR_HPP