jdk8-mips64-public/hotspot: src/share/vm/runtime/rframe.cpp@91ddc23482a4 (annotated)

src/share/vm/runtime/rframe.cpp@91ddc23482a4 (annotated)

src/share/vm/runtime/rframe.cpp

Thu, 24 May 2018 20:03:11 +0800

author: aoqi
date: Thu, 24 May 2018 20:03:11 +0800
changeset 8868: 91ddc23482a4
parent 6876: 710a3c8b516e
permissions: -rw-r--r--

Increase MaxHeapSize for better performance on MIPS

 /*
  * Copyright (c) 1997, 2011, 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 "interpreter/interpreter.hpp"
 #include "oops/oop.inline.hpp"
 #include "oops/symbol.hpp"
 #include "runtime/frame.inline.hpp"
 #include "runtime/rframe.hpp"
 #include "runtime/vframe.hpp"
 #include "runtime/vframe_hp.hpp"
 static RFrame*const  noCaller    = (RFrame*) 0x1;               // no caller (i.e., initial frame)
 static RFrame*const  noCallerYet = (RFrame*) 0x0;               // caller not yet computed
 RFrame::RFrame(frame fr, JavaThread* thread, RFrame*const callee) :
   _fr(fr), _thread(thread), _callee(callee), _num(callee ? callee->num() + 1 : 0) {
   _caller = (RFrame*)noCallerYet;
   _invocations = 0;
   _distance = 0;
 }
 void RFrame::set_distance(int d) {
   assert(is_compiled() || d >= 0, "should be positive");
   _distance = d;
 }
 InterpretedRFrame::InterpretedRFrame(frame fr, JavaThread* thread, RFrame*const callee)
 : RFrame(fr, thread, callee) {
   RegisterMap map(thread, false);
   _vf     = javaVFrame::cast(vframe::new_vframe(&_fr, &map, thread));
   _method = methodHandle(thread, _vf->method());
   assert(   _vf->is_interpreted_frame(), "must be interpreted");
   init();
 }
 InterpretedRFrame::InterpretedRFrame(frame fr, JavaThread* thread, methodHandle m)
 : RFrame(fr, thread, NULL) {
   RegisterMap map(thread, false);
   _vf     = javaVFrame::cast(vframe::new_vframe(&_fr, &map, thread));
   _method = m;
   assert(   _vf->is_interpreted_frame(),  "must be interpreted");
   init();
 }
 CompiledRFrame::CompiledRFrame(frame fr, JavaThread* thread, RFrame*const  callee)
 : RFrame(fr, thread, callee) {
   init();
 }
 CompiledRFrame::CompiledRFrame(frame fr, JavaThread* thread)
 : RFrame(fr, thread, NULL) {
   init();
 }
 DeoptimizedRFrame::DeoptimizedRFrame(frame fr, JavaThread* thread, RFrame*const  callee)
 : InterpretedRFrame(fr, thread, callee) {}
 RFrame* RFrame::new_RFrame(frame fr, JavaThread* thread, RFrame*const  callee) {
   RFrame* rf;
   int dist = callee ? callee->distance() : -1;
   if (fr.is_interpreted_frame()) {
     rf = new InterpretedRFrame(fr, thread, callee);
     dist++;
   } else if (fr.is_compiled_frame()) {
     // Even deopted frames look compiled because the deopt
     // is invisible until it happens.
     rf = new CompiledRFrame(fr, thread, callee);
   } else {
     assert(false, "Unhandled frame type");
   }
   rf->set_distance(dist);
   rf->init();
   return rf;
 }
 RFrame* RFrame::caller() {
   if (_caller != noCallerYet) return (_caller == noCaller) ? NULL : _caller;    // already computed caller
   // caller not yet computed; do it now
   if (_fr.is_first_java_frame()) {
     _caller = (RFrame*)noCaller;
     return NULL;
   }
   RegisterMap map(_thread, false);
   frame sender = _fr.real_sender(&map);
   if (sender.is_java_frame()) {
     _caller = new_RFrame(sender, thread(), this);
     return _caller;
   }
   // Real caller is not java related
   _caller = (RFrame*)noCaller;
   return NULL;
 }
 int InterpretedRFrame::cost() const {
   return _method->code_size();    // fix this
   //return _method->estimated_inline_cost(_receiverKlass);
 }
 int CompiledRFrame::cost() const {
   nmethod* nm = top_method()->code();
   if (nm != NULL) {
     return nm->insts_size();
   } else {
     return top_method()->code_size();
   }
 }
 void CompiledRFrame::init() {
   RegisterMap map(thread(), false);
   vframe* vf = vframe::new_vframe(&_fr, &map, thread());
   assert(vf->is_compiled_frame(), "must be compiled");
   _nm = compiledVFrame::cast(vf)->code();
   vf = vf->top();
   _vf = javaVFrame::cast(vf);
   _method = methodHandle(thread(), CodeCache::find_nmethod(_fr.pc())->method());
   assert(_method(), "should have found a method");
 #ifndef PRODUCT
   _invocations = _method->compiled_invocation_count();
 #endif
 }
 void InterpretedRFrame::init() {
   _invocations = _method->invocation_count() + _method->backedge_count();
 }
 void RFrame::print(const char* kind) {
 #ifndef PRODUCT
 #ifdef COMPILER2
   int cnt = top_method()->interpreter_invocation_count();
 #else
   int cnt = top_method()->invocation_count();
 #endif
   tty->print("%3d %s ", _num, is_interpreted() ? "I" : "C");
   top_method()->print_short_name(tty);
   tty->print_cr(": inv=%5d(%d) cst=%4d", _invocations, cnt, cost());
 #endif
 }
 void CompiledRFrame::print() {
   RFrame::print("comp");
 }
 void InterpretedRFrame::print() {
   RFrame::print("int.");
 }
 void DeoptimizedRFrame::print() {
   RFrame::print("deopt.");
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/runtime/rframe.cpp@91ddc23482a4 (annotated)

src/share/vm/runtime/rframe.cpp