jdk8-mips64-public/hotspot: src/cpu/mips/vm/interpreterRT_mips

src/cpu/mips/vm/interpreterRT_mips_64.cpp@3cedde979d75 (annotated)

src/cpu/mips/vm/interpreterRT_mips_64.cpp

Tue, 31 May 2016 00:22:06 -0400

author: aoqi
date: Tue, 31 May 2016 00:22:06 -0400
changeset 16: 3cedde979d75
parent 1: 2d8a650513c2
child 425: c3b0b3c41ffc
permissions: -rw-r--r--

[Code Reorganization] load_two_bytes_from_at_bcp -> get_2_byte_integer_at_bcp
remove useless MacroAssembler::store_two_byts_to_at_bcp
change MacroAssembler::load_two_bytes_from_at_bcp to InterpreterMacroAssembler::get_2_byte_integer_at_bcp
change MacroAssembler::get_4_byte_integer_at_bcp to InterpreterMacroAssembler::get_4_byte_integer_at_bcp

 /*
  * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2015, 2016, Loongson Technology. 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 "interpreter/interpreter.hpp"
 #include "interpreter/interpreterRuntime.hpp"
 #include "memory/allocation.inline.hpp"
 #include "memory/universe.inline.hpp"
 #include "oops/method.hpp"
 #include "oops/oop.inline.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/icache.hpp"
 #include "runtime/interfaceSupport.hpp"
 #include "runtime/signature.hpp"
 #define __ _masm->
 // Implementation of SignatureHandlerGenerator
 //#define aoqi_test
 void InterpreterRuntime::SignatureHandlerGenerator::move(int from_offset, int to_offset) {
   __ ld(temp(), from(), Interpreter::local_offset_in_bytes(from_offset));
   __ sd(temp(), to(), to_offset * longSize);
 }
 void InterpreterRuntime::SignatureHandlerGenerator::box(int from_offset, int to_offset) {
 	__ addi(temp(), from(),Interpreter::local_offset_in_bytes(from_offset) );
 	__ lw(AT, from(), Interpreter::local_offset_in_bytes(from_offset) );
 	Label L;
 	__ bne(AT, R0, L);
 	__ delayed()->nop();
 	__ move(temp(), R0);
 	__ bind(L);
 	__ sw(temp(), to(), to_offset * wordSize);
 }
 void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) {
   // generate code to handle arguments
   iterate(fingerprint);
   // return result handler
   __ li(V0, AbstractInterpreter::result_handler(method()->result_type()));
   // return
   __ jr(RA);
   __ delayed()->nop();
   __ flush();
 }
 void InterpreterRuntime::SignatureHandlerGenerator::pass_int() {
   Argument jni_arg(jni_offset());
   __ lw(temp(), from(), Interpreter::local_offset_in_bytes(offset()));
   __ store_int_argument(temp(), jni_arg);
 }
 void InterpreterRuntime::SignatureHandlerGenerator::pass_object() {
   Argument jni_arg(jni_offset());
   Register Rtmp1 = temp();
   // the handle for a receiver will never be null
   bool do_NULL_check = offset() != 0 || is_static();
   __ ld(Rtmp1, from(), Interpreter::local_offset_in_bytes(offset()));
   Label L;
   __ bne(Rtmp1, R0, L);
   __ addu_long(Rtmp1, from(), Interpreter::local_offset_in_bytes(offset()));
   __ move(Rtmp1, R0);
   __ bind(L);
   __ store_ptr_argument(Rtmp1, jni_arg);
 }
 //the jvm specifies that long type takes 2 stack spaces, so in do_long(), _offset += 2.
 void InterpreterRuntime::SignatureHandlerGenerator::pass_long() {
   Argument jni_arg(jni_offset());
   /*
   __ lw(temp(), from(), Interpreter::local_offset_in_bytes(offset()));
   __ dsll32(temp(), temp(), 0);
   __ lw(AT, from(), Interpreter::local_offset_in_bytes(offset() + 1));
   __ daddu(temp(), temp(), AT);
   __ sd(temp(), to(), jni_offset() * longSize);
   */
   __ ld(temp(), from(), Interpreter::local_offset_in_bytes(offset() + 1));
   //__ store_long_argument(temp(), jni_arg);
   if(jni_arg.is_Register()) {
     __ move(jni_arg.as_Register(), temp());
   } else {
     __ sd(temp(), jni_arg.as_caller_address());
   }
 }
 #if (defined _LP64) || (defined N32)
 void InterpreterRuntime::SignatureHandlerGenerator::pass_float() {
   Argument jni_arg(jni_offset());
   __ lwc1(F4, from(), Interpreter::local_offset_in_bytes(offset()));
   //	__ sdc1(F4, to(), jni_offset() * longSize);
   __ store_float_argument(F4, jni_arg);
 }
 //the jvm specifies that double type takes 2 stack spaces, so in do_double(), _offset += 2.
 void InterpreterRuntime::SignatureHandlerGenerator::pass_double() {
   Argument jni_arg(jni_offset());
   __ ldc1(F4, from(), Interpreter::local_offset_in_bytes(offset() + 1));
   __ store_double_argument(F4, jni_arg);
 }
 #endif
 inline Register InterpreterRuntime::SignatureHandlerGenerator::from()       { return LVP; }
 inline Register InterpreterRuntime::SignatureHandlerGenerator::to()         { return SP; }
 inline Register InterpreterRuntime::SignatureHandlerGenerator::temp()       { return RT4; }
 // Implementation of SignatureHandlerLibrary
 void SignatureHandlerLibrary::pd_set_handler(address handler) {}
 class SlowSignatureHandler
 : public NativeSignatureIterator {
   private:
     address   _from;
     intptr_t* _to;
     intptr_t* _reg_args;
     intptr_t* _fp_identifiers;
     unsigned int _num_args;
     //bool _align;
   virtual void pass_int()
   {
     jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
     _from -= Interpreter::stackElementSize;
     if (_num_args < Argument::n_register_parameters) {
       *_reg_args++ = from_obj;
       _num_args++;
     } else {
       *_to++ = from_obj;
     }
   }
   virtual void pass_long()
   {
     intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
     _from -= 2 * Interpreter::stackElementSize;
     if (_num_args < Argument::n_register_parameters) {
       *_reg_args++ = from_obj;
       _num_args++;
     } else {
       *_to++ = from_obj;
     }
   }
   virtual void pass_object()
   {
     intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0));
     _from -= Interpreter::stackElementSize;
     if (_num_args < Argument::n_register_parameters) {
       *_reg_args++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr;
       _num_args++;
     } else {
       *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr;
     }
   }
   virtual void pass_float()
   {
     jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
     _from -= Interpreter::stackElementSize;
     if (_num_args < Argument::n_float_register_parameters) {
       *_reg_args++ = from_obj;
       *_fp_identifiers |= (0x01 << (_num_args*2)); // mark as float
       _num_args++;
     } else {
       *_to++ = from_obj;
     }
   }
   virtual void pass_double()
   {
     intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
     _from -= 2*Interpreter::stackElementSize;
     if (_num_args < Argument::n_float_register_parameters) {
       *_reg_args++ = from_obj;
       *_fp_identifiers |= (0x3 << (_num_args*2)); // mark as double
       _num_args++;
     } else {
       *_to++ = from_obj;
     }
   }
  public:
   SlowSignatureHandler(methodHandle method, address from, intptr_t* to)
     : NativeSignatureIterator(method)
   {
     _from = from;
     _to   = to;
     //_reg_args = to - (method->is_static() ? 8 : 9);
     _reg_args = to - Argument::n_register_parameters + jni_offset() - 1;
     _fp_identifiers = to - 1;
 //    _to = _to + 4;  // Windows reserves stack space for register arguments
     *(int*) _fp_identifiers = 0;
     //_num_args = (method->is_static() ? 1 : 0);
     _num_args = jni_offset();
   }
 };
 IRT_ENTRY(address,
           InterpreterRuntime::slow_signature_handler(JavaThread* thread,
                                                      Method* method,
                                                      intptr_t* from,
                                                      intptr_t* to))
   methodHandle m(thread, (Method*)method);
   assert(m->is_native(), "sanity check");
   // handle arguments
   SlowSignatureHandler(m, (address)from, to).iterate(UCONST64(-1));
   // return result handler
   return Interpreter::result_handler(m->result_type());
 IRT_END

Mercurial > jdk8-mips64-public > hotspot / annotate

src/cpu/mips/vm/interpreterRT_mips_64.cpp@3cedde979d75 (annotated)

src/cpu/mips/vm/interpreterRT_mips_64.cpp