Mercurial > jdk8-mips64-public > hotspot / file revision

 /*

  * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

  * or visit www.oracle.com if you need additional information or have any

  * questions.

  *

  */

 #include "precompiled.hpp"

 #include "c1/c1_InstructionPrinter.hpp"

 #include "c1/c1_ValueStack.hpp"

 #include "ci/ciArray.hpp"

 #include "ci/ciInstance.hpp"

 #include "ci/ciObject.hpp"

 #ifndef PRODUCT

 const char* InstructionPrinter::basic_type_name(BasicType type) {

   switch (type) {

     case T_BOOLEAN: return "boolean";

     case T_BYTE   : return "byte";

     case T_CHAR   : return "char";

     case T_SHORT  : return "short";

     case T_INT    : return "int";

     case T_LONG   : return "long";

     case T_FLOAT  : return "float";

     case T_DOUBLE : return "double";

     case T_ARRAY  : return "array";

     case T_OBJECT : return "object";

     default       : return "???";

   }

 }

 const char* InstructionPrinter::cond_name(If::Condition cond) {

   switch (cond) {

     case If::eql: return "==";

     case If::neq: return "!=";

     case If::lss: return "<";

     case If::leq: return "<=";

     case If::gtr: return ">";

     case If::geq: return ">=";

     case If::aeq: return "|>=|";

     case If::beq: return "|<=|";

   }

   ShouldNotReachHere();

   return NULL;

 }

 const char* InstructionPrinter::op_name(Bytecodes::Code op) {

   switch (op) {

     // arithmetic ops

     case Bytecodes::_iadd : // fall through

     case Bytecodes::_ladd : // fall through

     case Bytecodes::_fadd : // fall through

     case Bytecodes::_dadd : return "+";

     case Bytecodes::_isub : // fall through

     case Bytecodes::_lsub : // fall through

     case Bytecodes::_fsub : // fall through

     case Bytecodes::_dsub : return "-";

     case Bytecodes::_imul : // fall through

     case Bytecodes::_lmul : // fall through

     case Bytecodes::_fmul : // fall through

     case Bytecodes::_dmul : return "*";

     case Bytecodes::_idiv : // fall through

     case Bytecodes::_ldiv : // fall through

     case Bytecodes::_fdiv : // fall through

     case Bytecodes::_ddiv : return "/";

     case Bytecodes::_irem : // fall through

     case Bytecodes::_lrem : // fall through

     case Bytecodes::_frem : // fall through

     case Bytecodes::_drem : return "%";

     // shift ops

     case Bytecodes::_ishl : // fall through

     case Bytecodes::_lshl : return "<<";

     case Bytecodes::_ishr : // fall through

     case Bytecodes::_lshr : return ">>";

     case Bytecodes::_iushr: // fall through

     case Bytecodes::_lushr: return ">>>";

     // logic ops

     case Bytecodes::_iand : // fall through

     case Bytecodes::_land : return "&";

     case Bytecodes::_ior  : // fall through

     case Bytecodes::_lor  : return "|";

     case Bytecodes::_ixor : // fall through

     case Bytecodes::_lxor : return "^";

   }

   return Bytecodes::name(op);

 }

 bool InstructionPrinter::is_illegal_phi(Value v) {

   Phi* phi = v ? v->as_Phi() : NULL;

   if (phi && phi->is_illegal()) {

     return true;

   }

   return false;

 }

 bool InstructionPrinter::is_phi_of_block(Value v, BlockBegin* b) {

   Phi* phi = v ? v->as_Phi() : NULL;

   return phi && phi->block() == b;

 }

 void InstructionPrinter::print_klass(ciKlass* klass) {

   klass->name()->print_symbol_on(output());

 }

 void InstructionPrinter::print_object(Value obj) {

   ValueType* type = obj->type();

   if (type->as_ObjectConstant() != NULL) {

     ciObject* value = type->as_ObjectConstant()->value();

     if (value->is_null_object()) {

       output()->print("null");

     } else if (!value->is_loaded()) {

       output()->print("<unloaded object " INTPTR_FORMAT ">", p2i(value));

     } else {

       output()->print("<object " INTPTR_FORMAT " klass=", p2i(value->constant_encoding()));

       print_klass(value->klass());

       output()->print(">");

     }

   } else if (type->as_InstanceConstant() != NULL) {

     ciInstance* value = type->as_InstanceConstant()->value();

     if (value->is_loaded()) {

       output()->print("<instance " INTPTR_FORMAT " klass=", p2i(value->constant_encoding()));

       print_klass(value->klass());

       output()->print(">");

     } else {

       output()->print("<unloaded instance " INTPTR_FORMAT ">", p2i(value));

     }

   } else if (type->as_ArrayConstant() != NULL) {

     output()->print("<array " INTPTR_FORMAT ">", p2i(type->as_ArrayConstant()->value()->constant_encoding()));

   } else if (type->as_ClassConstant() != NULL) {

     ciInstanceKlass* klass = type->as_ClassConstant()->value();

     if (!klass->is_loaded()) {

       output()->print("<unloaded> ");

     }

     output()->print("class ");

     print_klass(klass);

   } else if (type->as_MethodConstant() != NULL) {

     ciMethod* m = type->as_MethodConstant()->value();

     output()->print("<method %s.%s>", m->holder()->name()->as_utf8(), m->name()->as_utf8());

   } else {

     output()->print("???");

   }

 }

 void InstructionPrinter::print_temp(Value value) {

   output()->print("%c%d", value->type()->tchar(), value->id());

 }

 void InstructionPrinter::print_field(AccessField* field) {

   print_value(field->obj());

   output()->print("._%d", field->offset());

 }

 void InstructionPrinter::print_indexed(AccessIndexed* indexed) {

   print_value(indexed->array());

   output()->put('[');

   print_value(indexed->index());

   output()->put(']');

   if (indexed->length() != NULL) {

     output()->put('(');

     print_value(indexed->length());

     output()->put(')');

   }

 }

 void InstructionPrinter::print_monitor(AccessMonitor* monitor) {

   output()->print("monitor[%d](", monitor->monitor_no());

   print_value(monitor->obj());

   output()->put(')');

 }

 void InstructionPrinter::print_op2(Op2* instr) {

   print_value(instr->x());

   output()->print(" %s ", op_name(instr->op()));

   print_value(instr->y());

 }

 void InstructionPrinter::print_value(Value value) {

   if (value == NULL) {

     output()->print("NULL");

   } else {

     print_temp(value);

   }

 }

 void InstructionPrinter::print_instr(Instruction* instr) {

   instr->visit(this);

 }

 void InstructionPrinter::print_stack(ValueStack* stack) {

   int start_position = output()->position();

   if (stack->stack_is_empty()) {

     output()->print("empty stack");

   } else {

     output()->print("stack [");

     for (int i = 0; i < stack->stack_size();) {

       if (i > 0) output()->print(", ");

       output()->print("%d:", i);

       Value value = stack->stack_at_inc(i);

       print_value(value);

       Phi* phi = value->as_Phi();

       if (phi != NULL) {

         if (phi->operand()->is_valid()) {

           output()->print(" ");

           phi->operand()->print(output());

         }

       }

     }

     output()->put(']');

   }

   if (!stack->no_active_locks()) {

     // print out the lines on the line below this

     // one at the same indentation level.

     output()->cr();

     fill_to(start_position, ' ');

     output()->print("locks [");

     for (int i = i = 0; i < stack->locks_size(); i++) {

       Value t = stack->lock_at(i);

       if (i > 0) output()->print(", ");

       output()->print("%d:", i);

       if (t == NULL) {

         // synchronized methods push null on the lock stack

         output()->print("this");

       } else {

         print_value(t);

       }

     }

     output()->print("]");

   }

 }

 void InstructionPrinter::print_inline_level(BlockBegin* block) {

   output()->print_cr("inlining depth %d", block->scope()->level());

 }

 void InstructionPrinter::print_unsafe_op(UnsafeOp* op, const char* name) {

   output()->print("%s", name);

   output()->print(".(");

 }

 void InstructionPrinter::print_unsafe_raw_op(UnsafeRawOp* op, const char* name) {

   print_unsafe_op(op, name);

   output()->print("base ");

   print_value(op->base());

   if (op->has_index()) {

     output()->print(", index "); print_value(op->index());

     output()->print(", log2_scale %d", op->log2_scale());

   }

 }

 void InstructionPrinter::print_unsafe_object_op(UnsafeObjectOp* op, const char* name) {

   print_unsafe_op(op, name);

   print_value(op->object());

   output()->print(", ");

   print_value(op->offset());

 }

 void InstructionPrinter::print_phi(int i, Value v, BlockBegin* b) {

   Phi* phi = v->as_Phi();

   output()->print("%2d  ", i);

   print_value(v);

   // print phi operands

   if (phi && phi->block() == b) {

     output()->print(" [");

     for (int j = 0; j < phi->operand_count(); j ++) {

       output()->print(" ");

       Value opd = phi->operand_at(j);

       if (opd) print_value(opd);

       else output()->print("NULL");

     }

     output()->print("] ");

   }

   print_alias(v);

 }

 void InstructionPrinter::print_alias(Value v) {

   if (v != v->subst()) {

     output()->print("alias "); print_value(v->subst());

   }

 }

 void InstructionPrinter::fill_to(int pos, char filler) {

   while (output()->position() < pos) output()->put(filler);

 }

 void InstructionPrinter::print_head() {

   const char filler = '_';

   fill_to(bci_pos  , filler); output()->print("bci"  );

   fill_to(use_pos  , filler); output()->print("use"  );

   fill_to(temp_pos , filler); output()->print("tid"  );

   fill_to(instr_pos, filler); output()->print("instr");

   fill_to(end_pos  , filler);

   output()->cr();

 }

 void InstructionPrinter::print_line(Instruction* instr) {

   // print instruction data on one line

   if (instr->is_pinned()) output()->put('.');

   fill_to(bci_pos  ); output()->print("%d", instr->printable_bci());

   fill_to(use_pos  ); output()->print("%d", instr->use_count());

   fill_to(temp_pos ); print_temp(instr);

   fill_to(instr_pos); print_instr(instr);

   output()->cr();

   // add a line for StateSplit instructions w/ non-empty stacks

   // (make it robust so we can print incomplete instructions)

   StateSplit* split = instr->as_StateSplit();

   if (split != NULL && split->state() != NULL && !split->state()->stack_is_empty()) {

     fill_to(instr_pos); print_stack(split->state());

     output()->cr();

   }

 }

 void InstructionPrinter::do_Phi(Phi* x) {

   output()->print("phi function");  // make that more detailed later

   if (x->is_illegal())

     output()->print(" (illegal)");

 }

 void InstructionPrinter::do_Local(Local* x) {

   output()->print("local[index %d]", x->java_index());

 }

 void InstructionPrinter::do_Constant(Constant* x) {

   ValueType* t = x->type();

   switch (t->tag()) {

     case intTag    : output()->print("%d"  , t->as_IntConstant   ()->value());    break;

     case longTag   : output()->print(JLONG_FORMAT, t->as_LongConstant()->value()); output()->print("L"); break;

     case floatTag  : output()->print("%g"  , t->as_FloatConstant ()->value());    break;

     case doubleTag : output()->print("%gD" , t->as_DoubleConstant()->value());    break;

     case objectTag : print_object(x);                                        break;

     case addressTag: output()->print("bci:%d", t->as_AddressConstant()->value()); break;

     default        : output()->print("???");                                      break;

   }

 }

 void InstructionPrinter::do_LoadField(LoadField* x) {

   print_field(x);

   output()->print(" (%c)", type2char(x->field()->type()->basic_type()));

   output()->print(" %s", x->field()->name()->as_utf8());

 }

 void InstructionPrinter::do_StoreField(StoreField* x) {

   print_field(x);

   output()->print(" := ");

   print_value(x->value());

   output()->print(" (%c)", type2char(x->field()->type()->basic_type()));

   output()->print(" %s", x->field()->name()->as_utf8());

 }

 void InstructionPrinter::do_ArrayLength(ArrayLength* x) {

   print_value(x->array());

   output()->print(".length");

 }

 void InstructionPrinter::do_LoadIndexed(LoadIndexed* x) {

   print_indexed(x);

   output()->print(" (%c)", type2char(x->elt_type()));

   if (x->check_flag(Instruction::NeedsRangeCheckFlag)) {

     output()->print(" [rc]");

   }

 }

 void InstructionPrinter::do_StoreIndexed(StoreIndexed* x) {

   print_indexed(x);

   output()->print(" := ");

   print_value(x->value());

   output()->print(" (%c)", type2char(x->elt_type()));

   if (x->check_flag(Instruction::NeedsRangeCheckFlag)) {

     output()->print(" [rc]");

   }

 }

 void InstructionPrinter::do_NegateOp(NegateOp* x) {

   output()->put('-');

   print_value(x->x());

 }

 void InstructionPrinter::do_ArithmeticOp(ArithmeticOp* x) {

   print_op2(x);

 }

 void InstructionPrinter::do_ShiftOp(ShiftOp* x) {

   print_op2(x);

 }

 void InstructionPrinter::do_LogicOp(LogicOp* x) {

   print_op2(x);

 }

 void InstructionPrinter::do_CompareOp(CompareOp* x) {

   print_op2(x);

 }

 void InstructionPrinter::do_IfOp(IfOp* x) {

   print_value(x->x());

   output()->print(" %s ", cond_name(x->cond()));

   print_value(x->y());

   output()->print(" ? ");

   print_value(x->tval());

   output()->print(" : ");

   print_value(x->fval());

 }

 void InstructionPrinter::do_Convert(Convert* x) {

   output()->print("%s(", Bytecodes::name(x->op()));

   print_value(x->value());

   output()->put(')');

 }

 void InstructionPrinter::do_NullCheck(NullCheck* x) {

   output()->print("null_check(");

   print_value(x->obj());

   output()->put(')');

   if (!x->can_trap()) {

     output()->print(" (eliminated)");

   }

 }

 void InstructionPrinter::do_TypeCast(TypeCast* x) {

   output()->print("type_cast(");

   print_value(x->obj());

   output()->print(") ");

   if (x->declared_type()->is_klass())

     print_klass(x->declared_type()->as_klass());

   else

     output()->print("%s", type2name(x->declared_type()->basic_type()));

 }

 void InstructionPrinter::do_Invoke(Invoke* x) {

   if (x->receiver() != NULL) {

     print_value(x->receiver());

     output()->print(".");

   }

   output()->print("%s(", Bytecodes::name(x->code()));

   for (int i = 0; i < x->number_of_arguments(); i++) {

     if (i > 0) output()->print(", ");

     print_value(x->argument_at(i));

   }

   output()->print_cr(")");

   fill_to(instr_pos);

   output()->print("%s.%s%s",

              x->target()->holder()->name()->as_utf8(),

              x->target()->name()->as_utf8(),

              x->target()->signature()->as_symbol()->as_utf8());

 }

 void InstructionPrinter::do_NewInstance(NewInstance* x) {

   output()->print("new instance ");

   print_klass(x->klass());

 }

 void InstructionPrinter::do_NewTypeArray(NewTypeArray* x) {

   output()->print("new %s array [", basic_type_name(x->elt_type()));

   print_value(x->length());

   output()->put(']');

 }

 void InstructionPrinter::do_NewObjectArray(NewObjectArray* x) {

   output()->print("new object array [");

   print_value(x->length());

   output()->print("] ");

   print_klass(x->klass());

 }

 void InstructionPrinter::do_NewMultiArray(NewMultiArray* x) {

   output()->print("new multi array [");

   Values* dims = x->dims();

   for (int i = 0; i < dims->length(); i++) {

     if (i > 0) output()->print(", ");

     print_value(dims->at(i));

   }

   output()->print("] ");

   print_klass(x->klass());

 }

 void InstructionPrinter::do_MonitorEnter(MonitorEnter* x) {

   output()->print("enter ");

   print_monitor(x);

 }

 void InstructionPrinter::do_MonitorExit(MonitorExit* x) {

   output()->print("exit ");

   print_monitor(x);

 }

 void InstructionPrinter::do_Intrinsic(Intrinsic* x) {

   const char* name = vmIntrinsics::name_at(x->id());

   if (name[0] == '_')  name++;  // strip leading bug from _hashCode, etc.

   const char* kname = vmSymbols::name_for(vmIntrinsics::class_for(x->id()));

   if (strchr(name, '_') == NULL) {

     kname = NULL;

   } else {

     const char* kptr = strrchr(kname, '/');

     if (kptr != NULL)  kname = kptr + 1;

   }

   if (kname == NULL)

     output()->print("%s(", name);

   else

     output()->print("%s.%s(", kname, name);

   for (int i = 0; i < x->number_of_arguments(); i++) {

     if (i > 0) output()->print(", ");

     print_value(x->argument_at(i));

   }

   output()->put(')');

 }

 void InstructionPrinter::do_BlockBegin(BlockBegin* x) {

   // print block id

   BlockEnd* end = x->end();

   output()->print("B%d ", x->block_id());

   // print flags

   bool printed_flag = false;

   if (x->is_set(BlockBegin::std_entry_flag)) {

     if (!printed_flag) output()->print("(");

     output()->print("S"); printed_flag = true;

   }

   if (x->is_set(BlockBegin::osr_entry_flag)) {

     if (!printed_flag) output()->print("(");

     output()->print("O"); printed_flag = true;

   }

   if (x->is_set(BlockBegin::exception_entry_flag)) {

     if (!printed_flag) output()->print("(");

     output()->print("E"); printed_flag = true;

   }

   if (x->is_set(BlockBegin::subroutine_entry_flag)) {

     if (!printed_flag) output()->print("(");

     output()->print("s"); printed_flag = true;

   }

   if (x->is_set(BlockBegin::parser_loop_header_flag)) {

     if (!printed_flag) output()->print("(");

     output()->print("LH"); printed_flag = true;

   }

   if (x->is_set(BlockBegin::backward_branch_target_flag)) {

     if (!printed_flag) output()->print("(");

     output()->print("b"); printed_flag = true;

   }

   if (x->is_set(BlockBegin::was_visited_flag)) {

     if (!printed_flag) output()->print("(");

     output()->print("V"); printed_flag = true;

   }

   if (printed_flag) output()->print(") ");

   // print block bci range

   output()->print("[%d, %d]", x->bci(), (end == NULL ? -1 : end->printable_bci()));

   // print block successors

   if (end != NULL && end->number_of_sux() > 0) {

     output()->print(" ->");

     for (int i = 0; i < end->number_of_sux(); i++) {

       output()->print(" B%d", end->sux_at(i)->block_id());

     }

   }

   // print exception handlers

   if (x->number_of_exception_handlers() > 0) {

     output()->print(" (xhandlers ");

     for (int i = 0; i < x->number_of_exception_handlers();  i++) {

       if (i > 0) output()->print(" ");

       output()->print("B%d", x->exception_handler_at(i)->block_id());

     }

     output()->put(')');

   }

   // print dominator block

   if (x->dominator() != NULL) {

     output()->print(" dom B%d", x->dominator()->block_id());

   }

   // print predecessors and successors

   if (x->successors()->length() > 0) {

     output()->print(" sux:");

     for (int i = 0; i < x->successors()->length(); i ++) {

       output()->print(" B%d", x->successors()->at(i)->block_id());

     }

   }

   if (x->number_of_preds() > 0) {

     output()->print(" pred:");

     for (int i = 0; i < x->number_of_preds(); i ++) {

       output()->print(" B%d", x->pred_at(i)->block_id());

     }

   }

   if (!_print_phis) {

     return;

   }

   // print phi functions

   bool has_phis_in_locals = false;

   bool has_phis_on_stack = false;

   if (x->end() && x->end()->state()) {

     ValueStack* state = x->state();

     int i = 0;

     while (!has_phis_on_stack && i < state->stack_size()) {

       Value v = state->stack_at_inc(i);

       has_phis_on_stack = is_phi_of_block(v, x);

     }

     do {

       for (i = 0; !has_phis_in_locals && i < state->locals_size();) {

         Value v = state->local_at(i);

         has_phis_in_locals = is_phi_of_block(v, x);

         // also ignore illegal HiWords

         if (v && !v->type()->is_illegal()) i += v->type()->size(); else i ++;

       }

       state = state->caller_state();

     } while (state != NULL);

   }

   // print values in locals

   if (has_phis_in_locals) {

     output()->cr(); output()->print_cr("Locals:");

     ValueStack* state = x->state();

     do {

       for (int i = 0; i < state->locals_size();) {

         Value v = state->local_at(i);

         if (v) {

           print_phi(i, v, x); output()->cr();

           // also ignore illegal HiWords

           i += (v->type()->is_illegal() ? 1 : v->type()->size());

         } else {

           i ++;

         }

       }

       output()->cr();

       state = state->caller_state();

     } while (state != NULL);

   }

   // print values on stack

   if (has_phis_on_stack) {

     output()->print_cr("Stack:");

     int i = 0;

     while (i < x->state()->stack_size()) {

       int o = i;

       Value v = x->state()->stack_at_inc(i);

       if (v) {

         print_phi(o, v, x); output()->cr();

       }

     }

   }

 }

 void InstructionPrinter::do_CheckCast(CheckCast* x) {

   output()->print("checkcast(");

   print_value(x->obj());

   output()->print(") ");

   print_klass(x->klass());

 }

 void InstructionPrinter::do_InstanceOf(InstanceOf* x) {

   output()->print("instanceof(");

   print_value(x->obj());

   output()->print(") ");

   print_klass(x->klass());

 }

 void InstructionPrinter::do_Goto(Goto* x) {

   output()->print("goto B%d", x->default_sux()->block_id());

   if (x->is_safepoint()) output()->print(" (safepoint)");

 }

 void InstructionPrinter::do_If(If* x) {

   output()->print("if ");

   print_value(x->x());

   output()->print(" %s ", cond_name(x->cond()));

   print_value(x->y());

   output()->print(" then B%d else B%d", x->sux_at(0)->block_id(), x->sux_at(1)->block_id());

   if (x->is_safepoint()) output()->print(" (safepoint)");

 }

 void InstructionPrinter::do_IfInstanceOf(IfInstanceOf* x) {

   output()->print("<IfInstanceOf>");

 }

 void InstructionPrinter::do_TableSwitch(TableSwitch* x) {

   output()->print("tableswitch ");

   if (x->is_safepoint()) output()->print("(safepoint) ");

   print_value(x->tag());

   output()->cr();

   int l = x->length();

   for (int i = 0; i < l; i++) {

     fill_to(instr_pos);

     output()->print_cr("case %5d: B%d", x->lo_key() + i, x->sux_at(i)->block_id());

   }

   fill_to(instr_pos);

   output()->print("default   : B%d", x->default_sux()->block_id());

 }

 void InstructionPrinter::do_LookupSwitch(LookupSwitch* x) {

   output()->print("lookupswitch ");

   if (x->is_safepoint()) output()->print("(safepoint) ");

   print_value(x->tag());

   output()->cr();

   int l = x->length();

   for (int i = 0; i < l; i++) {

     fill_to(instr_pos);

     output()->print_cr("case %5d: B%d", x->key_at(i), x->sux_at(i)->block_id());

   }

   fill_to(instr_pos);

   output()->print("default   : B%d", x->default_sux()->block_id());

 }

 void InstructionPrinter::do_Return(Return* x) {

   if (x->result() == NULL) {

     output()->print("return");

   } else {

     output()->print("%creturn ", x->type()->tchar());

     print_value(x->result());

   }

 }

 void InstructionPrinter::do_Throw(Throw* x) {

   output()->print("throw ");

   print_value(x->exception());

 }

 void InstructionPrinter::do_Base(Base* x) {

   output()->print("std entry B%d", x->std_entry()->block_id());

   if (x->number_of_sux() > 1) {

     output()->print(" osr entry B%d", x->osr_entry()->block_id());

   }

 }

 void InstructionPrinter::do_OsrEntry(OsrEntry* x) {

   output()->print("osr entry");

 }

 void InstructionPrinter::do_ExceptionObject(ExceptionObject* x) {

   output()->print("incoming exception");

 }

 void InstructionPrinter::do_RoundFP(RoundFP* x) {

   output()->print("round_fp ");

   print_value(x->input());

 }

 void InstructionPrinter::do_UnsafeGetRaw(UnsafeGetRaw* x) {

   print_unsafe_raw_op(x, "UnsafeGetRaw");

   output()->put(')');

 }

 void InstructionPrinter::do_UnsafePutRaw(UnsafePutRaw* x) {

   print_unsafe_raw_op(x, "UnsafePutRaw");

   output()->print(", value ");

   print_value(x->value());

   output()->put(')');

 }

 void InstructionPrinter::do_UnsafeGetObject(UnsafeGetObject* x) {

   print_unsafe_object_op(x, "UnsafeGetObject");

   output()->put(')');

 }

 void InstructionPrinter::do_UnsafePutObject(UnsafePutObject* x) {

   print_unsafe_object_op(x, "UnsafePutObject");

   output()->print(", value ");

   print_value(x->value());

   output()->put(')');

 }

 void InstructionPrinter::do_UnsafeGetAndSetObject(UnsafeGetAndSetObject* x) {

   print_unsafe_object_op(x, x->is_add()?"UnsafeGetAndSetObject (add)":"UnsafeGetAndSetObject");

   output()->print(", value ");

   print_value(x->value());

   output()->put(')');

 }

 void InstructionPrinter::do_UnsafePrefetchRead(UnsafePrefetchRead* x) {

   print_unsafe_object_op(x, "UnsafePrefetchRead");

   output()->put(')');

 }

 void InstructionPrinter::do_RangeCheckPredicate(RangeCheckPredicate* x) {

   if (x->x() != NULL && x->y() != NULL) {

     output()->print("if ");

     print_value(x->x());

     output()->print(" %s ", cond_name(x->cond()));

     print_value(x->y());

     output()->print(" then deoptimize!");

   } else {

     output()->print("always deoptimize!");

   }

 }

 #ifdef ASSERT

 void InstructionPrinter::do_Assert(Assert* x) {

   output()->print("assert ");

   print_value(x->x());

   output()->print(" %s ", cond_name(x->cond()));

   print_value(x->y());

 }

 #endif

 void InstructionPrinter::do_UnsafePrefetchWrite(UnsafePrefetchWrite* x) {

   print_unsafe_object_op(x, "UnsafePrefetchWrite");

   output()->put(')');

 }

 void InstructionPrinter::do_ProfileCall(ProfileCall* x) {

   output()->print("profile ");

   print_value(x->recv());

   output()->print(" %s.%s", x->method()->holder()->name()->as_utf8(), x->method()->name()->as_utf8());

   if (x->known_holder() != NULL) {

     output()->print(", ");

     print_klass(x->known_holder());

     output()->print(" ");

   }

   for (int i = 0; i < x->nb_profiled_args(); i++) {

     if (i > 0) output()->print(", ");

     print_value(x->profiled_arg_at(i));

     if (x->arg_needs_null_check(i)) {

       output()->print(" [NC]");

     }

   }

   output()->put(')');

 }

 void InstructionPrinter::do_ProfileReturnType(ProfileReturnType* x) {

   output()->print("profile ret type ");

   print_value(x->ret());

   output()->print(" %s.%s", x->method()->holder()->name()->as_utf8(), x->method()->name()->as_utf8());

   output()->put(')');

 }

 void InstructionPrinter::do_ProfileInvoke(ProfileInvoke* x) {

   output()->print("profile_invoke ");

   output()->print(" %s.%s", x->inlinee()->holder()->name()->as_utf8(), x->inlinee()->name()->as_utf8());

   output()->put(')');

 }

 void InstructionPrinter::do_RuntimeCall(RuntimeCall* x) {

   output()->print("call_rt %s(", x->entry_name());

   for (int i = 0; i < x->number_of_arguments(); i++) {

     if (i > 0) output()->print(", ");

     print_value(x->argument_at(i));

   }

   output()->put(')');

 }

 void InstructionPrinter::do_MemBar(MemBar* x) {

   if (os::is_MP()) {

     LIR_Code code = x->code();

     switch (code) {

       case lir_membar_acquire   : output()->print("membar_acquire"); break;

       case lir_membar_release   : output()->print("membar_release"); break;

       case lir_membar           : output()->print("membar"); break;

       case lir_membar_loadload  : output()->print("membar_loadload"); break;

       case lir_membar_storestore: output()->print("membar_storestore"); break;

       case lir_membar_loadstore : output()->print("membar_loadstore"); break;

       case lir_membar_storeload : output()->print("membar_storeload"); break;

       default                   : ShouldNotReachHere(); break;

     }

   }

 }

 #endif // PRODUCT