1 /*
   2  * Copyright 1999-2006 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  20  * CA 95054 USA or visit www.sun.com if you need additional information or
  21  * have any questions.
  22  *

 398     } else {
 399       ShouldNotReachHere();
 400     }
 401     assert(_bytes_to_copy <= (masm->pc() - pc_start()), "not enough bytes");
 402   }
 403 
 404   address pc_start() const                       { return _pc_start; }
 405   PatchID id() const                             { return _id; }
 406 
 407   virtual void emit_code(LIR_Assembler* e);
 408   virtual CodeEmitInfo* info() const             { return _info; }
 409   virtual void visit(LIR_OpVisitState* visitor) {
 410     visitor->do_slow_case(_info);
 411   }
 412 #ifndef PRODUCT
 413   virtual void print_name(outputStream* out) const { out->print("PatchingStub"); }
 414 #endif // PRODUCT
 415 };
 416 
 417 






















 418 class SimpleExceptionStub: public CodeStub {
 419  private:
 420   LIR_Opr          _obj;
 421   Runtime1::StubID _stub;
 422   CodeEmitInfo*    _info;
 423 
 424  public:
 425   SimpleExceptionStub(Runtime1::StubID stub, LIR_Opr obj, CodeEmitInfo* info):
 426     _obj(obj), _info(info), _stub(stub) {
 427   }
 428 
 429   virtual void emit_code(LIR_Assembler* e);
 430   virtual CodeEmitInfo* info() const             { return _info; }
 431   virtual bool is_exception_throw_stub() const   { return true; }
 432   virtual void visit(LIR_OpVisitState* visitor) {
 433     if (_obj->is_valid()) visitor->do_input(_obj);
 434     visitor->do_slow_case(_info);
 435   }
 436 #ifndef PRODUCT
 437   virtual void print_name(outputStream* out) const { out->print("SimpleExceptionStub"); }

   1 /*
   2  * Copyright 1999-2010 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  20  * CA 95054 USA or visit www.sun.com if you need additional information or
  21  * have any questions.
  22  *

 398     } else {
 399       ShouldNotReachHere();
 400     }
 401     assert(_bytes_to_copy <= (masm->pc() - pc_start()), "not enough bytes");
 402   }
 403 
 404   address pc_start() const                       { return _pc_start; }
 405   PatchID id() const                             { return _id; }
 406 
 407   virtual void emit_code(LIR_Assembler* e);
 408   virtual CodeEmitInfo* info() const             { return _info; }
 409   virtual void visit(LIR_OpVisitState* visitor) {
 410     visitor->do_slow_case(_info);
 411   }
 412 #ifndef PRODUCT
 413   virtual void print_name(outputStream* out) const { out->print("PatchingStub"); }
 414 #endif // PRODUCT
 415 };
 416 
 417 
 418 //------------------------------------------------------------------------------
 419 // DeoptimizeStub
 420 //
 421 class DeoptimizeStub : public CodeStub {
 422 private:
 423   CodeEmitInfo* _info;
 424 
 425 public:
 426   DeoptimizeStub(CodeEmitInfo* info) : _info(new CodeEmitInfo(info)) {}
 427 
 428   virtual void emit_code(LIR_Assembler* e);
 429   virtual CodeEmitInfo* info() const           { return _info; }
 430   virtual bool is_exception_throw_stub() const { return true; }
 431   virtual void visit(LIR_OpVisitState* visitor) {
 432     visitor->do_slow_case(_info);
 433   }
 434 #ifndef PRODUCT
 435   virtual void print_name(outputStream* out) const { out->print("DeoptimizeStub"); }
 436 #endif // PRODUCT
 437 };
 438 
 439 
 440 class SimpleExceptionStub: public CodeStub {
 441  private:
 442   LIR_Opr          _obj;
 443   Runtime1::StubID _stub;
 444   CodeEmitInfo*    _info;
 445 
 446  public:
 447   SimpleExceptionStub(Runtime1::StubID stub, LIR_Opr obj, CodeEmitInfo* info):
 448     _obj(obj), _info(info), _stub(stub) {
 449   }
 450 
 451   virtual void emit_code(LIR_Assembler* e);
 452   virtual CodeEmitInfo* info() const             { return _info; }
 453   virtual bool is_exception_throw_stub() const   { return true; }
 454   virtual void visit(LIR_OpVisitState* visitor) {
 455     if (_obj->is_valid()) visitor->do_input(_obj);
 456     visitor->do_slow_case(_info);
 457   }
 458 #ifndef PRODUCT
 459   virtual void print_name(outputStream* out) const { out->print("SimpleExceptionStub"); }