1 /*
   2  * Copyright (c) 1999, 2011, 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 #include "precompiled.hpp"
  26 #include "c1/c1_InstructionPrinter.hpp"
  27 #include "c1/c1_ValueStack.hpp"
  28 #include "ci/ciArray.hpp"
  29 #include "ci/ciInstance.hpp"
  30 #include "ci/ciObject.hpp"
  31 
  32 
  33 #ifndef PRODUCT
  34 
  35 const char* InstructionPrinter::basic_type_name(BasicType type) {
  36   switch (type) {
  37     case T_BOOLEAN: return "boolean";
  38     case T_BYTE   : return "byte";
  39     case T_CHAR   : return "char";
  40     case T_SHORT  : return "short";
  41     case T_INT    : return "int";
  42     case T_LONG   : return "long";
  43     case T_FLOAT  : return "float";
  44     case T_DOUBLE : return "double";
  45     case T_ARRAY  : return "array";
  46     case T_OBJECT : return "object";
  47     default       : return "???";
  48   }
  49 }
  50 
  51 
  52 const char* InstructionPrinter::cond_name(If::Condition cond) {
  53   switch (cond) {
  54     case If::eql: return "==";
  55     case If::neq: return "!=";
  56     case If::lss: return "<";
  57     case If::leq: return "<=";
  58     case If::gtr: return ">";
  59     case If::geq: return ">=";
  60   }
  61   ShouldNotReachHere();
  62   return NULL;
  63 }
  64 
  65 
  66 const char* InstructionPrinter::op_name(Bytecodes::Code op) {
  67   switch (op) {
  68     // arithmetic ops
  69     case Bytecodes::_iadd : // fall through
  70     case Bytecodes::_ladd : // fall through
  71     case Bytecodes::_fadd : // fall through
  72     case Bytecodes::_dadd : return "+";
  73     case Bytecodes::_isub : // fall through
  74     case Bytecodes::_lsub : // fall through
  75     case Bytecodes::_fsub : // fall through
  76     case Bytecodes::_dsub : return "-";
  77     case Bytecodes::_imul : // fall through
  78     case Bytecodes::_lmul : // fall through
  79     case Bytecodes::_fmul : // fall through
  80     case Bytecodes::_dmul : return "*";
  81     case Bytecodes::_idiv : // fall through
  82     case Bytecodes::_ldiv : // fall through
  83     case Bytecodes::_fdiv : // fall through
  84     case Bytecodes::_ddiv : return "/";
  85     case Bytecodes::_irem : // fall through
  86     case Bytecodes::_lrem : // fall through
  87     case Bytecodes::_frem : // fall through
  88     case Bytecodes::_drem : return "%";
  89     // shift ops
  90     case Bytecodes::_ishl : // fall through
  91     case Bytecodes::_lshl : return "<<";
  92     case Bytecodes::_ishr : // fall through
  93     case Bytecodes::_lshr : return ">>";
  94     case Bytecodes::_iushr: // fall through
  95     case Bytecodes::_lushr: return ">>>";
  96     // logic ops
  97     case Bytecodes::_iand : // fall through
  98     case Bytecodes::_land : return "&";
  99     case Bytecodes::_ior  : // fall through
 100     case Bytecodes::_lor  : return "|";
 101     case Bytecodes::_ixor : // fall through
 102     case Bytecodes::_lxor : return "^";
 103   }
 104   return Bytecodes::name(op);
 105 }
 106 
 107 
 108 bool InstructionPrinter::is_illegal_phi(Value v) {
 109   Phi* phi = v ? v->as_Phi() : NULL;
 110   if (phi && phi->is_illegal()) {
 111     return true;
 112   }
 113   return false;
 114 }
 115 
 116 
 117 bool InstructionPrinter::is_phi_of_block(Value v, BlockBegin* b) {
 118   Phi* phi = v ? v->as_Phi() : NULL;
 119   return phi && phi->block() == b;
 120 }
 121 
 122 
 123 void InstructionPrinter::print_klass(ciKlass* klass) {
 124   klass->name()->print_symbol_on(output());
 125 }
 126 
 127 
 128 void InstructionPrinter::print_object(Value obj) {
 129   ValueType* type = obj->type();
 130   if (type->as_ObjectConstant() != NULL) {
 131     ciObject* value = type->as_ObjectConstant()->value();
 132     if (value->is_null_object()) {
 133       output()->print("null");
 134     } else if (!value->is_loaded()) {
 135       output()->print("<unloaded object " PTR_FORMAT ">", value);
 136     } else if (value->is_method()) {
 137       ciMethod* m = (ciMethod*)value;
 138       output()->print("<method %s.%s>", m->holder()->name()->as_utf8(), m->name()->as_utf8());
 139     } else {
 140       output()->print("<object " PTR_FORMAT ">", value->constant_encoding());
 141     }
 142   } else if (type->as_InstanceConstant() != NULL) {
 143     ciInstance* value = type->as_InstanceConstant()->value();
 144     if (value->is_loaded()) {
 145       output()->print("<instance " PTR_FORMAT ">", value->constant_encoding());
 146     } else {
 147       output()->print("<unloaded instance " PTR_FORMAT ">", value);
 148     }
 149   } else if (type->as_ArrayConstant() != NULL) {
 150     output()->print("<array " PTR_FORMAT ">", type->as_ArrayConstant()->value()->constant_encoding());
 151   } else if (type->as_ClassConstant() != NULL) {
 152     ciInstanceKlass* klass = type->as_ClassConstant()->value();
 153     if (!klass->is_loaded()) {
 154       output()->print("<unloaded> ");
 155     }
 156     output()->print("class ");
 157     print_klass(klass);
 158   } else {
 159     output()->print("???");
 160   }
 161 }
 162 
 163 
 164 void InstructionPrinter::print_temp(Value value) {
 165   output()->print("%c%d", value->type()->tchar(), value->id());
 166 }
 167 
 168 
 169 void InstructionPrinter::print_field(AccessField* field) {
 170   print_value(field->obj());
 171   output()->print("._%d", field->offset());
 172 }
 173 
 174 
 175 void InstructionPrinter::print_indexed(AccessIndexed* indexed) {
 176   print_value(indexed->array());
 177   output()->put('[');
 178   print_value(indexed->index());
 179   output()->put(']');
 180 }
 181 
 182 
 183 void InstructionPrinter::print_monitor(AccessMonitor* monitor) {
 184   output()->print("monitor[%d](", monitor->monitor_no());
 185   print_value(monitor->obj());
 186   output()->put(')');
 187 }
 188 
 189 
 190 void InstructionPrinter::print_op2(Op2* instr) {
 191   print_value(instr->x());
 192   output()->print(" %s ", op_name(instr->op()));
 193   print_value(instr->y());
 194 }
 195 
 196 
 197 void InstructionPrinter::print_value(Value value) {
 198   if (value == NULL) {
 199     output()->print("NULL");
 200   } else {
 201     print_temp(value);
 202   }
 203 }
 204 
 205 
 206 void InstructionPrinter::print_instr(Instruction* instr) {
 207   instr->visit(this);
 208 }
 209 
 210 
 211 void InstructionPrinter::print_stack(ValueStack* stack) {
 212   int start_position = output()->position();
 213   if (stack->stack_is_empty()) {
 214     output()->print("empty stack");
 215   } else {
 216     output()->print("stack [");
 217     for (int i = 0; i < stack->stack_size();) {
 218       if (i > 0) output()->print(", ");
 219       output()->print("%d:", i);
 220       Value value = stack->stack_at_inc(i);
 221       print_value(value);
 222       Phi* phi = value->as_Phi();
 223       if (phi != NULL) {
 224         if (phi->operand()->is_valid()) {
 225           output()->print(" ");
 226           phi->operand()->print(output());
 227         }
 228       }
 229     }
 230     output()->put(']');
 231   }
 232   if (!stack->no_active_locks()) {
 233     // print out the lines on the line below this
 234     // one at the same indentation level.
 235     output()->cr();
 236     fill_to(start_position, ' ');
 237     output()->print("locks [");
 238     for (int i = i = 0; i < stack->locks_size(); i++) {
 239       Value t = stack->lock_at(i);
 240       if (i > 0) output()->print(", ");
 241       output()->print("%d:", i);
 242       if (t == NULL) {
 243         // synchronized methods push null on the lock stack
 244         output()->print("this");
 245       } else {
 246         print_value(t);
 247       }
 248     }
 249     output()->print("]");
 250   }
 251 }
 252 
 253 
 254 void InstructionPrinter::print_inline_level(BlockBegin* block) {
 255   output()->print_cr("inlining depth %d", block->scope()->level());
 256 }
 257 
 258 
 259 void InstructionPrinter::print_unsafe_op(UnsafeOp* op, const char* name) {
 260   output()->print(name);
 261   output()->print(".(");
 262 }
 263 
 264 void InstructionPrinter::print_unsafe_raw_op(UnsafeRawOp* op, const char* name) {
 265   print_unsafe_op(op, name);
 266   output()->print("base ");
 267   print_value(op->base());
 268   if (op->has_index()) {
 269     output()->print(", index "); print_value(op->index());
 270     output()->print(", log2_scale %d", op->log2_scale());
 271   }
 272 }
 273 
 274 
 275 void InstructionPrinter::print_unsafe_object_op(UnsafeObjectOp* op, const char* name) {
 276   print_unsafe_op(op, name);
 277   print_value(op->object());
 278   output()->print(", ");
 279   print_value(op->offset());
 280 }
 281 
 282 
 283 void InstructionPrinter::print_phi(int i, Value v, BlockBegin* b) {
 284   Phi* phi = v->as_Phi();
 285   output()->print("%2d  ", i);
 286   print_value(v);
 287   // print phi operands
 288   if (phi && phi->block() == b) {
 289     output()->print(" [");
 290     for (int j = 0; j < phi->operand_count(); j ++) {
 291       output()->print(" ");
 292       Value opd = phi->operand_at(j);
 293       if (opd) print_value(opd);
 294       else output()->print("NULL");
 295     }
 296     output()->print("] ");
 297   }
 298   print_alias(v);
 299 }
 300 
 301 
 302 void InstructionPrinter::print_alias(Value v) {
 303   if (v != v->subst()) {
 304     output()->print("alias "); print_value(v->subst());
 305   }
 306 }
 307 
 308 
 309 void InstructionPrinter::fill_to(int pos, char filler) {
 310   while (output()->position() < pos) output()->put(filler);
 311 }
 312 
 313 
 314 void InstructionPrinter::print_head() {
 315   const char filler = '_';
 316   fill_to(bci_pos  , filler); output()->print("bci"  );
 317   fill_to(use_pos  , filler); output()->print("use"  );
 318   fill_to(temp_pos , filler); output()->print("tid"  );
 319   fill_to(instr_pos, filler); output()->print("instr");
 320   fill_to(end_pos  , filler);
 321   output()->cr();
 322 }
 323 
 324 
 325 void InstructionPrinter::print_line(Instruction* instr) {
 326   // print instruction data on one line
 327   if (instr->is_pinned()) output()->put('.');
 328   fill_to(bci_pos  ); output()->print("%d", instr->printable_bci());
 329   fill_to(use_pos  ); output()->print("%d", instr->use_count());
 330   fill_to(temp_pos ); print_temp(instr);
 331   fill_to(instr_pos); print_instr(instr);
 332   output()->cr();
 333   // add a line for StateSplit instructions w/ non-empty stacks
 334   // (make it robust so we can print incomplete instructions)
 335   StateSplit* split = instr->as_StateSplit();
 336   if (split != NULL && split->state() != NULL && !split->state()->stack_is_empty()) {
 337     fill_to(instr_pos); print_stack(split->state());
 338     output()->cr();
 339   }
 340 }
 341 
 342 
 343 void InstructionPrinter::do_Phi(Phi* x) {
 344   output()->print("phi function");  // make that more detailed later
 345   if (x->is_illegal())
 346     output()->print(" (illegal)");
 347 }
 348 
 349 
 350 void InstructionPrinter::do_Local(Local* x) {
 351   output()->print("local[index %d]", x->java_index());
 352 }
 353 
 354 
 355 void InstructionPrinter::do_Constant(Constant* x) {
 356   ValueType* t = x->type();
 357   switch (t->tag()) {
 358     case intTag    : output()->print("%d"  , t->as_IntConstant   ()->value());    break;
 359     case longTag   : output()->print(os::jlong_format_specifier(), t->as_LongConstant()->value()); output()->print("L"); break;
 360     case floatTag  : output()->print("%g"  , t->as_FloatConstant ()->value());    break;
 361     case doubleTag : output()->print("%gD" , t->as_DoubleConstant()->value());    break;
 362     case objectTag : print_object(x);                                        break;
 363     case addressTag: output()->print("bci:%d", t->as_AddressConstant()->value()); break;
 364     default        : output()->print("???");                                      break;
 365   }
 366 }
 367 
 368 
 369 void InstructionPrinter::do_LoadField(LoadField* x) {
 370   print_field(x);
 371   output()->print(" (%c)", type2char(x->field()->type()->basic_type()));
 372 }
 373 
 374 
 375 void InstructionPrinter::do_StoreField(StoreField* x) {
 376   print_field(x);
 377   output()->print(" := ");
 378   print_value(x->value());
 379   output()->print(" (%c)", type2char(x->field()->type()->basic_type()));
 380 }
 381 
 382 
 383 void InstructionPrinter::do_ArrayLength(ArrayLength* x) {
 384   print_value(x->array());
 385   output()->print(".length");
 386 }
 387 
 388 
 389 void InstructionPrinter::do_LoadIndexed(LoadIndexed* x) {
 390   print_indexed(x);
 391   output()->print(" (%c)", type2char(x->elt_type()));
 392 }
 393 
 394 
 395 void InstructionPrinter::do_StoreIndexed(StoreIndexed* x) {
 396   print_indexed(x);
 397   output()->print(" := ");
 398   print_value(x->value());
 399   output()->print(" (%c)", type2char(x->elt_type()));
 400 }
 401 
 402 void InstructionPrinter::do_NegateOp(NegateOp* x) {
 403   output()->put('-');
 404   print_value(x->x());
 405 }
 406 
 407 
 408 void InstructionPrinter::do_ArithmeticOp(ArithmeticOp* x) {
 409   print_op2(x);
 410 }
 411 
 412 
 413 void InstructionPrinter::do_ShiftOp(ShiftOp* x) {
 414   print_op2(x);
 415 }
 416 
 417 
 418 void InstructionPrinter::do_LogicOp(LogicOp* x) {
 419   print_op2(x);
 420 }
 421 
 422 
 423 void InstructionPrinter::do_CompareOp(CompareOp* x) {
 424   print_op2(x);
 425 }
 426 
 427 
 428 void InstructionPrinter::do_IfOp(IfOp* x) {
 429   print_value(x->x());
 430   output()->print(" %s ", cond_name(x->cond()));
 431   print_value(x->y());
 432   output()->print(" ? ");
 433   print_value(x->tval());
 434   output()->print(" : ");
 435   print_value(x->fval());
 436 }
 437 
 438 
 439 void InstructionPrinter::do_Convert(Convert* x) {
 440   output()->print("%s(", Bytecodes::name(x->op()));
 441   print_value(x->value());
 442   output()->put(')');
 443 }
 444 
 445 
 446 void InstructionPrinter::do_NullCheck(NullCheck* x) {
 447   output()->print("null_check(");
 448   print_value(x->obj());
 449   output()->put(')');
 450   if (!x->can_trap()) {
 451     output()->print(" (eliminated)");
 452   }
 453 }
 454 
 455 
 456 void InstructionPrinter::do_Invoke(Invoke* x) {
 457   if (x->receiver() != NULL) {
 458     print_value(x->receiver());
 459     output()->print(".");
 460   }
 461 
 462   output()->print("%s(", Bytecodes::name(x->code()));
 463   for (int i = 0; i < x->number_of_arguments(); i++) {
 464     if (i > 0) output()->print(", ");
 465     print_value(x->argument_at(i));
 466   }
 467   output()->print_cr(")");
 468   fill_to(instr_pos);
 469   output()->print("%s.%s%s",
 470              x->target()->holder()->name()->as_utf8(),
 471              x->target()->name()->as_utf8(),
 472              x->target()->signature()->as_symbol()->as_utf8());
 473 }
 474 
 475 
 476 void InstructionPrinter::do_NewInstance(NewInstance* x) {
 477   output()->print("new instance ");
 478   print_klass(x->klass());
 479 }
 480 
 481 
 482 void InstructionPrinter::do_NewTypeArray(NewTypeArray* x) {
 483   output()->print("new %s array [", basic_type_name(x->elt_type()));
 484   print_value(x->length());
 485   output()->put(']');
 486 }
 487 
 488 
 489 void InstructionPrinter::do_NewObjectArray(NewObjectArray* x) {
 490   output()->print("new object array [");
 491   print_value(x->length());
 492   output()->print("] ");
 493   print_klass(x->klass());
 494 }
 495 
 496 
 497 void InstructionPrinter::do_NewMultiArray(NewMultiArray* x) {
 498   output()->print("new multi array [");
 499   Values* dims = x->dims();
 500   for (int i = 0; i < dims->length(); i++) {
 501     if (i > 0) output()->print(", ");
 502     print_value(dims->at(i));
 503   }
 504   output()->print("] ");
 505   print_klass(x->klass());
 506 }
 507 
 508 
 509 void InstructionPrinter::do_MonitorEnter(MonitorEnter* x) {
 510   output()->print("enter ");
 511   print_monitor(x);
 512 }
 513 
 514 
 515 void InstructionPrinter::do_MonitorExit(MonitorExit* x) {
 516   output()->print("exit ");
 517   print_monitor(x);
 518 }
 519 
 520 
 521 void InstructionPrinter::do_Intrinsic(Intrinsic* x) {
 522   const char* name = vmIntrinsics::name_at(x->id());
 523   if (name[0] == '_')  name++;  // strip leading bug from _hashCode, etc.
 524   const char* kname = vmSymbols::name_for(vmIntrinsics::class_for(x->id()));
 525   if (strchr(name, '_') == NULL) {
 526     kname = NULL;
 527   } else {
 528     const char* kptr = strrchr(kname, '/');
 529     if (kptr != NULL)  kname = kptr + 1;
 530   }
 531   if (kname == NULL)
 532     output()->print("%s(", name);
 533   else
 534     output()->print("%s.%s(", kname, name);
 535   for (int i = 0; i < x->number_of_arguments(); i++) {
 536     if (i > 0) output()->print(", ");
 537     print_value(x->argument_at(i));
 538   }
 539   output()->put(')');
 540 }
 541 
 542 
 543 void InstructionPrinter::do_BlockBegin(BlockBegin* x) {
 544   // print block id
 545   BlockEnd* end = x->end();
 546   output()->print("B%d ", x->block_id());
 547 
 548   // print flags
 549   bool printed_flag = false;
 550   if (x->is_set(BlockBegin::std_entry_flag)) {
 551     if (!printed_flag) output()->print("(");
 552     output()->print("S"); printed_flag = true;
 553   }
 554   if (x->is_set(BlockBegin::osr_entry_flag)) {
 555     if (!printed_flag) output()->print("(");
 556     output()->print("O"); printed_flag = true;
 557   }
 558   if (x->is_set(BlockBegin::exception_entry_flag)) {
 559     if (!printed_flag) output()->print("(");
 560     output()->print("E"); printed_flag = true;
 561   }
 562   if (x->is_set(BlockBegin::subroutine_entry_flag)) {
 563     if (!printed_flag) output()->print("(");
 564     output()->print("s"); printed_flag = true;
 565   }
 566   if (x->is_set(BlockBegin::parser_loop_header_flag)) {
 567     if (!printed_flag) output()->print("(");
 568     output()->print("LH"); printed_flag = true;
 569   }
 570   if (x->is_set(BlockBegin::backward_branch_target_flag)) {
 571     if (!printed_flag) output()->print("(");
 572     output()->print("b"); printed_flag = true;
 573   }
 574   if (x->is_set(BlockBegin::was_visited_flag)) {
 575     if (!printed_flag) output()->print("(");
 576     output()->print("V"); printed_flag = true;
 577   }
 578   if (printed_flag) output()->print(") ");
 579 
 580   // print block bci range
 581   output()->print("[%d, %d]", x->bci(), (end == NULL ? -1 : end->printable_bci()));
 582 
 583   // print block successors
 584   if (end != NULL && end->number_of_sux() > 0) {
 585     output()->print(" ->");
 586     for (int i = 0; i < end->number_of_sux(); i++) {
 587       output()->print(" B%d", end->sux_at(i)->block_id());
 588     }
 589   }
 590   // print exception handlers
 591   if (x->number_of_exception_handlers() > 0) {
 592     output()->print(" (xhandlers ");
 593     for (int i = 0; i < x->number_of_exception_handlers();  i++) {
 594       if (i > 0) output()->print(" ");
 595       output()->print("B%d", x->exception_handler_at(i)->block_id());
 596     }
 597     output()->put(')');
 598   }
 599 
 600   // print dominator block
 601   if (x->dominator() != NULL) {
 602     output()->print(" dom B%d", x->dominator()->block_id());
 603   }
 604 
 605   // print predecessors and successors
 606   if (x->successors()->length() > 0) {
 607     output()->print(" sux:");
 608     for (int i = 0; i < x->successors()->length(); i ++) {
 609       output()->print(" B%d", x->successors()->at(i)->block_id());
 610     }
 611   }
 612 
 613   if (x->number_of_preds() > 0) {
 614     output()->print(" pred:");
 615     for (int i = 0; i < x->number_of_preds(); i ++) {
 616       output()->print(" B%d", x->pred_at(i)->block_id());
 617     }
 618   }
 619 
 620   if (!_print_phis) {
 621     return;
 622   }
 623 
 624   // print phi functions
 625   bool has_phis_in_locals = false;
 626   bool has_phis_on_stack = false;
 627 
 628   if (x->end() && x->end()->state()) {
 629     ValueStack* state = x->state();
 630 
 631     int i = 0;
 632     while (!has_phis_on_stack && i < state->stack_size()) {
 633       Value v = state->stack_at_inc(i);
 634       has_phis_on_stack = is_phi_of_block(v, x);
 635     }
 636 
 637     do {
 638       for (i = 0; !has_phis_in_locals && i < state->locals_size();) {
 639         Value v = state->local_at(i);
 640         has_phis_in_locals = is_phi_of_block(v, x);
 641         // also ignore illegal HiWords
 642         if (v && !v->type()->is_illegal()) i += v->type()->size(); else i ++;
 643       }
 644       state = state->caller_state();
 645     } while (state != NULL);
 646 
 647   }
 648 
 649   // print values in locals
 650   if (has_phis_in_locals) {
 651     output()->cr(); output()->print_cr("Locals:");
 652 
 653     ValueStack* state = x->state();
 654     do {
 655       for (int i = 0; i < state->locals_size();) {
 656         Value v = state->local_at(i);
 657         if (v) {
 658           print_phi(i, v, x); output()->cr();
 659           // also ignore illegal HiWords
 660           i += (v->type()->is_illegal() ? 1 : v->type()->size());
 661         } else {
 662           i ++;
 663         }
 664       }
 665       output()->cr();
 666       state = state->caller_state();
 667     } while (state != NULL);
 668   }
 669 
 670   // print values on stack
 671   if (has_phis_on_stack) {
 672     output()->print_cr("Stack:");
 673     int i = 0;
 674     while (i < x->state()->stack_size()) {
 675       int o = i;
 676       Value v = x->state()->stack_at_inc(i);
 677       if (v) {
 678         print_phi(o, v, x); output()->cr();
 679       }
 680     }
 681   }
 682 }
 683 
 684 
 685 void InstructionPrinter::do_CheckCast(CheckCast* x) {
 686   output()->print("checkcast(");
 687   print_value(x->obj());
 688   output()->print(") ");
 689   print_klass(x->klass());
 690 }
 691 
 692 
 693 void InstructionPrinter::do_InstanceOf(InstanceOf* x) {
 694   output()->print("instanceof(");
 695   print_value(x->obj());
 696   output()->print(") ");
 697   print_klass(x->klass());
 698 }
 699 
 700 
 701 void InstructionPrinter::do_Goto(Goto* x) {
 702   output()->print("goto B%d", x->default_sux()->block_id());
 703   if (x->is_safepoint()) output()->print(" (safepoint)");
 704 }
 705 
 706 
 707 void InstructionPrinter::do_If(If* x) {
 708   output()->print("if ");
 709   print_value(x->x());
 710   output()->print(" %s ", cond_name(x->cond()));
 711   print_value(x->y());
 712   output()->print(" then B%d else B%d", x->sux_at(0)->block_id(), x->sux_at(1)->block_id());
 713   if (x->is_safepoint()) output()->print(" (safepoint)");
 714 }
 715 
 716 
 717 void InstructionPrinter::do_IfInstanceOf(IfInstanceOf* x) {
 718   output()->print("<IfInstanceOf>");
 719 }
 720 
 721 
 722 void InstructionPrinter::do_TableSwitch(TableSwitch* x) {
 723   output()->print("tableswitch ");
 724   if (x->is_safepoint()) output()->print("(safepoint) ");
 725   print_value(x->tag());
 726   output()->cr();
 727   int l = x->length();
 728   for (int i = 0; i < l; i++) {
 729     fill_to(instr_pos);
 730     output()->print_cr("case %5d: B%d", x->lo_key() + i, x->sux_at(i)->block_id());
 731   }
 732   fill_to(instr_pos);
 733   output()->print("default   : B%d", x->default_sux()->block_id());
 734 }
 735 
 736 
 737 void InstructionPrinter::do_LookupSwitch(LookupSwitch* x) {
 738   output()->print("lookupswitch ");
 739   if (x->is_safepoint()) output()->print("(safepoint) ");
 740   print_value(x->tag());
 741   output()->cr();
 742   int l = x->length();
 743   for (int i = 0; i < l; i++) {
 744     fill_to(instr_pos);
 745     output()->print_cr("case %5d: B%d", x->key_at(i), x->sux_at(i)->block_id());
 746   }
 747   fill_to(instr_pos);
 748   output()->print("default   : B%d", x->default_sux()->block_id());
 749 }
 750 
 751 
 752 void InstructionPrinter::do_Return(Return* x) {
 753   if (x->result() == NULL) {
 754     output()->print("return");
 755   } else {
 756     output()->print("%creturn ", x->type()->tchar());
 757     print_value(x->result());
 758   }
 759 }
 760 
 761 
 762 void InstructionPrinter::do_Throw(Throw* x) {
 763   output()->print("throw ");
 764   print_value(x->exception());
 765 }
 766 
 767 
 768 void InstructionPrinter::do_Base(Base* x) {
 769   output()->print("std entry B%d", x->std_entry()->block_id());
 770   if (x->number_of_sux() > 1) {
 771     output()->print(" osr entry B%d", x->osr_entry()->block_id());
 772   }
 773 }
 774 
 775 
 776 void InstructionPrinter::do_OsrEntry(OsrEntry* x) {
 777   output()->print("osr entry");
 778 }
 779 
 780 
 781 void InstructionPrinter::do_ExceptionObject(ExceptionObject* x) {
 782   output()->print("incoming exception");
 783 }
 784 
 785 
 786 void InstructionPrinter::do_RoundFP(RoundFP* x) {
 787   output()->print("round_fp ");
 788   print_value(x->input());
 789 }
 790 
 791 
 792 void InstructionPrinter::do_UnsafeGetRaw(UnsafeGetRaw* x) {
 793   print_unsafe_raw_op(x, "UnsafeGetRaw");
 794   output()->put(')');
 795 }
 796 
 797 
 798 void InstructionPrinter::do_UnsafePutRaw(UnsafePutRaw* x) {
 799   print_unsafe_raw_op(x, "UnsafePutRaw");
 800   output()->print(", value ");
 801   print_value(x->value());
 802   output()->put(')');
 803 }
 804 
 805 
 806 void InstructionPrinter::do_UnsafeGetObject(UnsafeGetObject* x) {
 807   print_unsafe_object_op(x, "UnsafeGetObject");
 808   output()->put(')');
 809 }
 810 
 811 
 812 void InstructionPrinter::do_UnsafePutObject(UnsafePutObject* x) {
 813   print_unsafe_object_op(x, "UnsafePutObject");
 814   output()->print(", value ");
 815   print_value(x->value());
 816   output()->put(')');
 817 }
 818 
 819 
 820 void InstructionPrinter::do_UnsafePrefetchRead(UnsafePrefetchRead* x) {
 821   print_unsafe_object_op(x, "UnsafePrefetchRead");
 822   output()->put(')');
 823 }
 824 
 825 
 826 void InstructionPrinter::do_UnsafePrefetchWrite(UnsafePrefetchWrite* x) {
 827   print_unsafe_object_op(x, "UnsafePrefetchWrite");
 828   output()->put(')');
 829 }
 830 
 831 void InstructionPrinter::do_ProfileCall(ProfileCall* x) {
 832   output()->print("profile ");
 833   print_value(x->recv());
 834   output()->print(" %s.%s", x->method()->holder()->name()->as_utf8(), x->method()->name()->as_utf8());
 835   if (x->known_holder() != NULL) {
 836     output()->print(", ");
 837     print_klass(x->known_holder());
 838   }
 839   output()->put(')');
 840 }
 841 
 842 void InstructionPrinter::do_ProfileInvoke(ProfileInvoke* x) {
 843   output()->print("profile_invoke ");
 844   output()->print(" %s.%s", x->inlinee()->holder()->name()->as_utf8(), x->inlinee()->name()->as_utf8());
 845   output()->put(')');
 846 
 847 }
 848 
 849 void InstructionPrinter::do_RuntimeCall(RuntimeCall* x) {
 850   output()->print("call_rt %s(", x->entry_name());
 851   for (int i = 0; i < x->number_of_arguments(); i++) {
 852     if (i > 0) output()->print(", ");
 853     print_value(x->argument_at(i));
 854   }
 855   output()->put(')');
 856 }
 857 
 858 void InstructionPrinter::do_MemBar(MemBar* x) {
 859   if (os::is_MP()) {
 860     LIR_Code code = x->code();
 861     switch (code) {
 862       case lir_membar_acquire   : output()->print("membar_acquire"); break;
 863       case lir_membar_release   : output()->print("membar_release"); break;
 864       case lir_membar           : output()->print("membar"); break;
 865       case lir_membar_loadload  : output()->print("membar_loadload"); break;
 866       case lir_membar_storestore: output()->print("membar_storestore"); break;
 867       case lir_membar_loadstore : output()->print("membar_loadstore"); break;
 868       case lir_membar_storeload : output()->print("membar_storeload"); break;
 869       default                   : ShouldNotReachHere(); break;
 870     }
 871   }
 872 }
 873 
 874 #endif // PRODUCT