jdk8-mips64-public/hotspot: src/share/vm/shark/sharkCacheDecache.hpp@01522ca68fc7 (annotated)

src/share/vm/shark/sharkCacheDecache.hpp@01522ca68fc7 (annotated)

src/share/vm/shark/sharkCacheDecache.hpp

Tue, 18 Jun 2013 12:31:07 -0700

author: johnc
date: Tue, 18 Jun 2013 12:31:07 -0700
changeset 5277: 01522ca68fc7
parent 4314: 2cd5e15048e6
child 6876: 710a3c8b516e
permissions: -rw-r--r--

8015237: Parallelize string table scanning during strong root processing
Summary: Parallelize the scanning of the intern string table by having each GC worker claim a given number of buckets. Changes were also reviewed by Per Liden <per.liden@oracle.com>.
Reviewed-by: tschatzl, stefank, twisti

 /*
  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2008, 2009 Red Hat, Inc.
  * 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.
  *
  */
 #ifndef SHARE_VM_SHARK_SHARKCACHEDECACHE_HPP
 #define SHARE_VM_SHARK_SHARKCACHEDECACHE_HPP
 #include "ci/ciMethod.hpp"
 #include "code/debugInfoRec.hpp"
 #include "shark/sharkBuilder.hpp"
 #include "shark/sharkFunction.hpp"
 #include "shark/sharkStateScanner.hpp"
 // Class hierarchy:
 // - SharkStateScanner
 //   - SharkCacherDecacher
 //     - SharkDecacher
 //       - SharkJavaCallDecacher
 //       - SharkVMCallDecacher
 //       - SharkTrapDecacher
 //     - SharkCacher
 //       - SharkJavaCallCacher
 //       - SharkVMCallCacher
 //       - SharkFunctionEntryCacher
 //         - SharkNormalEntryCacher
 //         - SharkOSREntryCacher
 class SharkCacherDecacher : public SharkStateScanner {
  protected:
   SharkCacherDecacher(SharkFunction* function)
     : SharkStateScanner(function) {}
   // Helper
  protected:
   static int adjusted_offset(SharkValue* value, int offset) {
     if (value->is_two_word())
       offset--;
     return offset;
   }
 };
 class SharkDecacher : public SharkCacherDecacher {
  protected:
   SharkDecacher(SharkFunction* function, int bci)
     : SharkCacherDecacher(function), _bci(bci) {}
  private:
   int _bci;
  protected:
   int bci() const {
     return _bci;
   }
  private:
   int                           _pc_offset;
   OopMap*                       _oopmap;
   GrowableArray<ScopeValue*>*   _exparray;
   GrowableArray<MonitorValue*>* _monarray;
   GrowableArray<ScopeValue*>*   _locarray;
  private:
   int pc_offset() const {
     return _pc_offset;
   }
   OopMap* oopmap() const {
     return _oopmap;
   }
   GrowableArray<ScopeValue*>* exparray() const {
     return _exparray;
   }
   GrowableArray<MonitorValue*>* monarray() const {
     return _monarray;
   }
   GrowableArray<ScopeValue*>* locarray() const {
     return _locarray;
   }
   // Callbacks
  protected:
   void start_frame();
   void start_stack(int stack_depth);
   void process_stack_slot(int index, SharkValue** value, int offset);
   void start_monitors(int num_monitors);
   void process_monitor(int index, int box_offset, int obj_offset);
   void process_oop_tmp_slot(llvm::Value** value, int offset);
   void process_method_slot(llvm::Value** value, int offset);
   void process_pc_slot(int offset);
   void start_locals();
   void process_local_slot(int index, SharkValue** value, int offset);
   void end_frame();
   // oopmap and debuginfo helpers
  private:
   static int oopmap_slot_munge(int offset) {
     return SharkStack::oopmap_slot_munge(offset);
   }
   static VMReg slot2reg(int offset) {
     return SharkStack::slot2reg(offset);
   }
   static Location slot2loc(int offset, Location::Type type) {
     return Location::new_stk_loc(type, offset * wordSize);
   }
   static LocationValue* slot2lv(int offset, Location::Type type) {
     return new LocationValue(slot2loc(offset, type));
   }
   static Location::Type location_type(SharkValue** addr, bool maybe_two_word) {
     // low addresses this end
     //                           Type       32-bit    64-bit
     //   ----------------------------------------------------
     //   stack[0]    local[3]    jobject    oop       oop
     //   stack[1]    local[2]    NULL       normal    lng
     //   stack[2]    local[1]    jlong      normal    invalid
     //   stack[3]    local[0]    jint       normal    normal
     //
     // high addresses this end
     SharkValue *value = *addr;
     if (value) {
       if (value->is_jobject())
         return Location::oop;
 #ifdef _LP64
       if (value->is_two_word())
         return Location::invalid;
 #endif // _LP64
       return Location::normal;
     }
     else {
       if (maybe_two_word) {
         value = *(addr - 1);
         if (value && value->is_two_word()) {
 #ifdef _LP64
           if (value->is_jlong())
             return Location::lng;
           if (value->is_jdouble())
             return Location::dbl;
           ShouldNotReachHere();
 #else
           return Location::normal;
 #endif // _LP64
         }
       }
       return Location::invalid;
     }
   }
   // Stack slot helpers
  protected:
   virtual bool stack_slot_needs_write(int index, SharkValue* value) = 0;
   virtual bool stack_slot_needs_oopmap(int index, SharkValue* value) = 0;
   virtual bool stack_slot_needs_debuginfo(int index, SharkValue* value) = 0;
   static Location::Type stack_location_type(int index, SharkValue** addr) {
     return location_type(addr, *addr == NULL);
   }
   // Local slot helpers
  protected:
   virtual bool local_slot_needs_write(int index, SharkValue* value) = 0;
   virtual bool local_slot_needs_oopmap(int index, SharkValue* value) = 0;
   virtual bool local_slot_needs_debuginfo(int index, SharkValue* value) = 0;
   static Location::Type local_location_type(int index, SharkValue** addr) {
     return location_type(addr, index > 0);
   }
   // Writer helper
  protected:
   void write_value_to_frame(llvm::Type* type,
                             llvm::Value*      value,
                             int               offset);
 };
 class SharkJavaCallDecacher : public SharkDecacher {
  public:
   SharkJavaCallDecacher(SharkFunction* function, int bci, ciMethod* callee)
     : SharkDecacher(function, bci), _callee(callee) {}
  private:
   ciMethod* _callee;
  protected:
   ciMethod* callee() const {
     return _callee;
   }
   // Stack slot helpers
  protected:
   bool stack_slot_needs_write(int index, SharkValue* value) {
     return value && (index < callee()->arg_size() || value->is_jobject());
   }
   bool stack_slot_needs_oopmap(int index, SharkValue* value) {
     return value && value->is_jobject() && index >= callee()->arg_size();
   }
   bool stack_slot_needs_debuginfo(int index, SharkValue* value) {
     return index >= callee()->arg_size();
   }
   // Local slot helpers
  protected:
   bool local_slot_needs_write(int index, SharkValue* value) {
     return value && value->is_jobject();
   }
   bool local_slot_needs_oopmap(int index, SharkValue* value) {
     return value && value->is_jobject();
   }
   bool local_slot_needs_debuginfo(int index, SharkValue* value) {
     return true;
   }
 };
 class SharkVMCallDecacher : public SharkDecacher {
  public:
   SharkVMCallDecacher(SharkFunction* function, int bci)
     : SharkDecacher(function, bci) {}
   // Stack slot helpers
  protected:
   bool stack_slot_needs_write(int index, SharkValue* value) {
     return value && value->is_jobject();
   }
   bool stack_slot_needs_oopmap(int index, SharkValue* value) {
     return value && value->is_jobject();
   }
   bool stack_slot_needs_debuginfo(int index, SharkValue* value) {
     return true;
   }
   // Local slot helpers
  protected:
   bool local_slot_needs_write(int index, SharkValue* value) {
     return value && value->is_jobject();
   }
   bool local_slot_needs_oopmap(int index, SharkValue* value) {
     return value && value->is_jobject();
   }
   bool local_slot_needs_debuginfo(int index, SharkValue* value) {
     return true;
   }
 };
 class SharkTrapDecacher : public SharkDecacher {
  public:
   SharkTrapDecacher(SharkFunction* function, int bci)
     : SharkDecacher(function, bci) {}
   // Stack slot helpers
  protected:
   bool stack_slot_needs_write(int index, SharkValue* value) {
     return value != NULL;
   }
   bool stack_slot_needs_oopmap(int index, SharkValue* value) {
     return value && value->is_jobject();
   }
   bool stack_slot_needs_debuginfo(int index, SharkValue* value) {
     return true;
   }
   // Local slot helpers
  protected:
   bool local_slot_needs_write(int index, SharkValue* value) {
     return value != NULL;
   }
   bool local_slot_needs_oopmap(int index, SharkValue* value) {
     return value && value->is_jobject();
   }
   bool local_slot_needs_debuginfo(int index, SharkValue* value) {
     return true;
   }
 };
 class SharkCacher : public SharkCacherDecacher {
  protected:
   SharkCacher(SharkFunction* function)
     : SharkCacherDecacher(function) {}
   // Callbacks
  protected:
   void process_stack_slot(int index, SharkValue** value, int offset);
   void process_oop_tmp_slot(llvm::Value** value, int offset);
   virtual void process_method_slot(llvm::Value** value, int offset);
   virtual void process_local_slot(int index, SharkValue** value, int offset);
   // Stack slot helper
  protected:
   virtual bool stack_slot_needs_read(int index, SharkValue* value) = 0;
   // Local slot helper
  protected:
   virtual bool local_slot_needs_read(int index, SharkValue* value) {
     return value && value->is_jobject();
   }
   // Writer helper
  protected:
   llvm::Value* read_value_from_frame(llvm::Type* type, int offset);
 };
 class SharkJavaCallCacher : public SharkCacher {
  public:
   SharkJavaCallCacher(SharkFunction* function, ciMethod* callee)
     : SharkCacher(function), _callee(callee) {}
  private:
   ciMethod* _callee;
  protected:
   ciMethod* callee() const {
     return _callee;
   }
   // Stack slot helper
  protected:
   bool stack_slot_needs_read(int index, SharkValue* value) {
     return value && (index < callee()->return_type()->size() ||
                      value->is_jobject());
   }
 };
 class SharkVMCallCacher : public SharkCacher {
  public:
   SharkVMCallCacher(SharkFunction* function)
     : SharkCacher(function) {}
   // Stack slot helper
  protected:
   bool stack_slot_needs_read(int index, SharkValue* value) {
     return value && value->is_jobject();
   }
 };
 class SharkFunctionEntryCacher : public SharkCacher {
  public:
   SharkFunctionEntryCacher(SharkFunction* function, llvm::Value* method)
     : SharkCacher(function), _method(method) {}
  private:
   llvm::Value* _method;
  private:
   llvm::Value* method() const {
     return _method;
   }
   // Method slot callback
  protected:
   void process_method_slot(llvm::Value** value, int offset);
   // Stack slot helper
  protected:
   bool stack_slot_needs_read(int index, SharkValue* value) {
     ShouldNotReachHere(); // entry block shouldn't have stack
   }
   // Local slot helper
  protected:
   bool local_slot_needs_read(int index, SharkValue* value) {
     return value != NULL;
   }
 };
 class SharkNormalEntryCacher : public SharkFunctionEntryCacher {
  public:
   SharkNormalEntryCacher(SharkFunction* function, llvm::Value* method)
     : SharkFunctionEntryCacher(function, method) {}
 };
 class SharkOSREntryCacher : public SharkFunctionEntryCacher {
  public:
   SharkOSREntryCacher(SharkFunction* function,
                       llvm::Value*   method,
                       llvm::Value*   osr_buf)
     : SharkFunctionEntryCacher(function, method),
       _osr_buf(
         builder()->CreateBitCast(
           osr_buf,
           llvm::PointerType::getUnqual(
             llvm::ArrayType::get(
               SharkType::intptr_type(),
               max_locals() + max_monitors() * 2)))) {}
  private:
   llvm::Value* _osr_buf;
  private:
   llvm::Value* osr_buf() const {
     return _osr_buf;
   }
   // Callbacks
  protected:
   void process_monitor(int index, int box_offset, int obj_offset);
   void process_local_slot(int index, SharkValue** value, int offset);
   // Helper
  private:
   llvm::Value* CreateAddressOfOSRBufEntry(int offset, llvm::Type* type);
 };
 #endif // SHARE_VM_SHARK_SHARKCACHEDECACHE_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/shark/sharkCacheDecache.hpp@01522ca68fc7 (annotated)

src/share/vm/shark/sharkCacheDecache.hpp