hotspot/src/share/vm/oops/methodData.hpp
author coleenp
Sat, 01 Sep 2012 13:25:18 -0400
changeset 13728 882756847a04
parent 10514 hotspot/src/share/vm/oops/methodDataOop.hpp@e229a19078cf
child 15479 e3c00ec80145
child 15437 eabd4555d072
permissions -rw-r--r--
6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
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/*
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 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#ifndef SHARE_VM_OOPS_METHODDATAOOP_HPP
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#define SHARE_VM_OOPS_METHODDATAOOP_HPP
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#include "interpreter/bytecodes.hpp"
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#include "memory/universe.hpp"
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#include "oops/method.hpp"
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#include "oops/oop.hpp"
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#include "runtime/orderAccess.hpp"
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class BytecodeStream;
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// The MethodData object collects counts and other profile information
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// during zeroth-tier (interpretive) and first-tier execution.
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// The profile is used later by compilation heuristics.  Some heuristics
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// enable use of aggressive (or "heroic") optimizations.  An aggressive
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// optimization often has a down-side, a corner case that it handles
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// poorly, but which is thought to be rare.  The profile provides
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// evidence of this rarity for a given method or even BCI.  It allows
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// the compiler to back out of the optimization at places where it
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// has historically been a poor choice.  Other heuristics try to use
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// specific information gathered about types observed at a given site.
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//
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// All data in the profile is approximate.  It is expected to be accurate
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// on the whole, but the system expects occasional inaccuraces, due to
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// counter overflow, multiprocessor races during data collection, space
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// limitations, missing MDO blocks, etc.  Bad or missing data will degrade
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// optimization quality but will not affect correctness.  Also, each MDO
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// is marked with its birth-date ("creation_mileage") which can be used
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// to assess the quality ("maturity") of its data.
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//
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// Short (<32-bit) counters are designed to overflow to a known "saturated"
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// state.  Also, certain recorded per-BCI events are given one-bit counters
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// which overflow to a saturated state which applied to all counters at
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// that BCI.  In other words, there is a small lattice which approximates
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// the ideal of an infinite-precision counter for each event at each BCI,
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// and the lattice quickly "bottoms out" in a state where all counters
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// are taken to be indefinitely large.
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//
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// The reader will find many data races in profile gathering code, starting
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// with invocation counter incrementation.  None of these races harm correct
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// execution of the compiled code.
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// forward decl
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class ProfileData;
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// DataLayout
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//
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// Overlay for generic profiling data.
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class DataLayout VALUE_OBJ_CLASS_SPEC {
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private:
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  // Every data layout begins with a header.  This header
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  // contains a tag, which is used to indicate the size/layout
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  // of the data, 4 bits of flags, which can be used in any way,
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  // 4 bits of trap history (none/one reason/many reasons),
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  // and a bci, which is used to tie this piece of data to a
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  // specific bci in the bytecodes.
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  union {
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    intptr_t _bits;
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    struct {
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      u1 _tag;
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      u1 _flags;
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      u2 _bci;
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    } _struct;
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  } _header;
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  // The data layout has an arbitrary number of cells, each sized
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  // to accomodate a pointer or an integer.
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  intptr_t _cells[1];
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  // Some types of data layouts need a length field.
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  static bool needs_array_len(u1 tag);
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public:
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  enum {
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    counter_increment = 1
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  };
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  enum {
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    cell_size = sizeof(intptr_t)
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  };
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  // Tag values
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  enum {
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    no_tag,
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    bit_data_tag,
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    counter_data_tag,
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    jump_data_tag,
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    receiver_type_data_tag,
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    virtual_call_data_tag,
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    ret_data_tag,
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    branch_data_tag,
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    multi_branch_data_tag,
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    arg_info_data_tag
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  };
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  enum {
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    // The _struct._flags word is formatted as [trap_state:4 | flags:4].
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    // The trap state breaks down further as [recompile:1 | reason:3].
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    // This further breakdown is defined in deoptimization.cpp.
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    // See Deoptimization::trap_state_reason for an assert that
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    // trap_bits is big enough to hold reasons < Reason_RECORDED_LIMIT.
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    //
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    // The trap_state is collected only if ProfileTraps is true.
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    trap_bits = 1+3,  // 3: enough to distinguish [0..Reason_RECORDED_LIMIT].
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    trap_shift = BitsPerByte - trap_bits,
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    trap_mask = right_n_bits(trap_bits),
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    trap_mask_in_place = (trap_mask << trap_shift),
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    flag_limit = trap_shift,
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    flag_mask = right_n_bits(flag_limit),
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    first_flag = 0
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  };
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  // Size computation
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  static int header_size_in_bytes() {
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    return cell_size;
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  }
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  static int header_size_in_cells() {
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    return 1;
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  }
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  static int compute_size_in_bytes(int cell_count) {
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    return header_size_in_bytes() + cell_count * cell_size;
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  }
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  // Initialization
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  void initialize(u1 tag, u2 bci, int cell_count);
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  // Accessors
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  u1 tag() {
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    return _header._struct._tag;
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  }
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  // Return a few bits of trap state.  Range is [0..trap_mask].
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  // The state tells if traps with zero, one, or many reasons have occurred.
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  // It also tells whether zero or many recompilations have occurred.
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  // The associated trap histogram in the MDO itself tells whether
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  // traps are common or not.  If a BCI shows that a trap X has
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  // occurred, and the MDO shows N occurrences of X, we make the
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  // simplifying assumption that all N occurrences can be blamed
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  // on that BCI.
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  int trap_state() {
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    return ((_header._struct._flags >> trap_shift) & trap_mask);
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  }
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  void set_trap_state(int new_state) {
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    assert(ProfileTraps, "used only under +ProfileTraps");
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    uint old_flags = (_header._struct._flags & flag_mask);
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    _header._struct._flags = (new_state << trap_shift) | old_flags;
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  }
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  u1 flags() {
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    return _header._struct._flags;
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  }
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  u2 bci() {
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    return _header._struct._bci;
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  }
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  void set_header(intptr_t value) {
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    _header._bits = value;
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  }
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  void release_set_header(intptr_t value) {
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    OrderAccess::release_store_ptr(&_header._bits, value);
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  }
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  intptr_t header() {
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    return _header._bits;
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  }
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  void set_cell_at(int index, intptr_t value) {
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    _cells[index] = value;
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  }
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  void release_set_cell_at(int index, intptr_t value) {
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    OrderAccess::release_store_ptr(&_cells[index], value);
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  }
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  intptr_t cell_at(int index) {
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    return _cells[index];
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  }
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  void set_flag_at(int flag_number) {
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    assert(flag_number < flag_limit, "oob");
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    _header._struct._flags |= (0x1 << flag_number);
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  }
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  bool flag_at(int flag_number) {
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    assert(flag_number < flag_limit, "oob");
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    return (_header._struct._flags & (0x1 << flag_number)) != 0;
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  }
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  // Low-level support for code generation.
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  static ByteSize header_offset() {
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    return byte_offset_of(DataLayout, _header);
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  }
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  static ByteSize tag_offset() {
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    return byte_offset_of(DataLayout, _header._struct._tag);
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  }
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  static ByteSize flags_offset() {
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    return byte_offset_of(DataLayout, _header._struct._flags);
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  }
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  static ByteSize bci_offset() {
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    return byte_offset_of(DataLayout, _header._struct._bci);
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  }
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  static ByteSize cell_offset(int index) {
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    return byte_offset_of(DataLayout, _cells) + in_ByteSize(index * cell_size);
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  }
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  // Return a value which, when or-ed as a byte into _flags, sets the flag.
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  static int flag_number_to_byte_constant(int flag_number) {
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    assert(0 <= flag_number && flag_number < flag_limit, "oob");
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    DataLayout temp; temp.set_header(0);
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    temp.set_flag_at(flag_number);
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    return temp._header._struct._flags;
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  }
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  // Return a value which, when or-ed as a word into _header, sets the flag.
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  static intptr_t flag_mask_to_header_mask(int byte_constant) {
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    DataLayout temp; temp.set_header(0);
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    temp._header._struct._flags = byte_constant;
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    return temp._header._bits;
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  }
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  ProfileData* data_in();
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  // GC support
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  void clean_weak_klass_links(BoolObjectClosure* cl);
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};
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// ProfileData class hierarchy
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class ProfileData;
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class   BitData;
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class     CounterData;
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class       ReceiverTypeData;
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class         VirtualCallData;
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class       RetData;
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class   JumpData;
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class     BranchData;
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class   ArrayData;
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class     MultiBranchData;
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class     ArgInfoData;
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// ProfileData
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//
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// A ProfileData object is created to refer to a section of profiling
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// data in a structured way.
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class ProfileData : public ResourceObj {
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private:
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#ifndef PRODUCT
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  enum {
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    tab_width_one = 16,
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    tab_width_two = 36
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  };
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#endif // !PRODUCT
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  // This is a pointer to a section of profiling data.
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  DataLayout* _data;
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protected:
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  DataLayout* data() { return _data; }
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  enum {
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    cell_size = DataLayout::cell_size
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  };
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public:
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  // How many cells are in this?
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  virtual int cell_count() {
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    ShouldNotReachHere();
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    return -1;
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  }
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  // Return the size of this data.
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  int size_in_bytes() {
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    return DataLayout::compute_size_in_bytes(cell_count());
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  }
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protected:
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  // Low-level accessors for underlying data
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  void set_intptr_at(int index, intptr_t value) {
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    assert(0 <= index && index < cell_count(), "oob");
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    data()->set_cell_at(index, value);
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  }
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  void release_set_intptr_at(int index, intptr_t value) {
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    assert(0 <= index && index < cell_count(), "oob");
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    data()->release_set_cell_at(index, value);
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  }
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  intptr_t intptr_at(int index) {
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    assert(0 <= index && index < cell_count(), "oob");
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    return data()->cell_at(index);
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  }
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  void set_uint_at(int index, uint value) {
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    set_intptr_at(index, (intptr_t) value);
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  }
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  void release_set_uint_at(int index, uint value) {
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    release_set_intptr_at(index, (intptr_t) value);
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  }
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  uint uint_at(int index) {
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    return (uint)intptr_at(index);
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  }
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  void set_int_at(int index, int value) {
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    set_intptr_at(index, (intptr_t) value);
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  }
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  void release_set_int_at(int index, int value) {
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    release_set_intptr_at(index, (intptr_t) value);
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  }
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  int int_at(int index) {
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    return (int)intptr_at(index);
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  }
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  int int_at_unchecked(int index) {
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    return (int)data()->cell_at(index);
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  }
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  void set_oop_at(int index, oop value) {
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    set_intptr_at(index, (intptr_t) value);
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  }
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  oop oop_at(int index) {
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    return (oop)intptr_at(index);
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  }
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  void set_flag_at(int flag_number) {
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    data()->set_flag_at(flag_number);
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  }
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  bool flag_at(int flag_number) {
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    return data()->flag_at(flag_number);
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  }
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  // two convenient imports for use by subclasses:
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  static ByteSize cell_offset(int index) {
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    return DataLayout::cell_offset(index);
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  }
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  static int flag_number_to_byte_constant(int flag_number) {
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    return DataLayout::flag_number_to_byte_constant(flag_number);
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  }
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  ProfileData(DataLayout* data) {
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    _data = data;
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  }
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public:
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  // Constructor for invalid ProfileData.
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  ProfileData();
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  u2 bci() {
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    return data()->bci();
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  }
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  address dp() {
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    return (address)_data;
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  }
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  int trap_state() {
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    return data()->trap_state();
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  }
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  void set_trap_state(int new_state) {
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    data()->set_trap_state(new_state);
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  }
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  // Type checking
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  virtual bool is_BitData()         { return false; }
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  virtual bool is_CounterData()     { return false; }
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  virtual bool is_JumpData()        { return false; }
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  virtual bool is_ReceiverTypeData(){ return false; }
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  virtual bool is_VirtualCallData() { return false; }
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  virtual bool is_RetData()         { return false; }
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  virtual bool is_BranchData()      { return false; }
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  virtual bool is_ArrayData()       { return false; }
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  virtual bool is_MultiBranchData() { return false; }
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  virtual bool is_ArgInfoData()     { return false; }
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1
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  BitData* as_BitData() {
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    assert(is_BitData(), "wrong type");
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    return is_BitData()         ? (BitData*)        this : NULL;
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  }
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   394
  CounterData* as_CounterData() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   395
    assert(is_CounterData(), "wrong type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   396
    return is_CounterData()     ? (CounterData*)    this : NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   397
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   398
  JumpData* as_JumpData() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   399
    assert(is_JumpData(), "wrong type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   400
    return is_JumpData()        ? (JumpData*)       this : NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   401
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
  ReceiverTypeData* as_ReceiverTypeData() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
    assert(is_ReceiverTypeData(), "wrong type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
    return is_ReceiverTypeData() ? (ReceiverTypeData*)this : NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   406
  VirtualCallData* as_VirtualCallData() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   407
    assert(is_VirtualCallData(), "wrong type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   408
    return is_VirtualCallData() ? (VirtualCallData*)this : NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   409
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
  RetData* as_RetData() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   411
    assert(is_RetData(), "wrong type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   412
    return is_RetData()         ? (RetData*)        this : NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   413
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   414
  BranchData* as_BranchData() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
    assert(is_BranchData(), "wrong type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   416
    return is_BranchData()      ? (BranchData*)     this : NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   417
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   418
  ArrayData* as_ArrayData() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   419
    assert(is_ArrayData(), "wrong type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   420
    return is_ArrayData()       ? (ArrayData*)      this : NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   421
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
  MultiBranchData* as_MultiBranchData() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   423
    assert(is_MultiBranchData(), "wrong type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
    return is_MultiBranchData() ? (MultiBranchData*)this : NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
  }
218
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
   426
  ArgInfoData* as_ArgInfoData() {
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
   427
    assert(is_ArgInfoData(), "wrong type");
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
   428
    return is_ArgInfoData() ? (ArgInfoData*)this : NULL;
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
   429
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   430
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
489c9b5090e2 Initial load
duke
parents:
diff changeset
   432
  // Subclass specific initialization
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
   433
  virtual void post_initialize(BytecodeStream* stream, MethodData* mdo) {}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
  // GC support
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
   436
  virtual void clean_weak_klass_links(BoolObjectClosure* is_alive_closure) {}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
489c9b5090e2 Initial load
duke
parents:
diff changeset
   438
  // CI translation: ProfileData can represent both MethodDataOop data
489c9b5090e2 Initial load
duke
parents:
diff changeset
   439
  // as well as CIMethodData data. This function is provided for translating
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
  // an oop in a ProfileData to the ci equivalent. Generally speaking,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   441
  // most ProfileData don't require any translation, so we provide the null
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
  // translation here, and the required translators are in the ci subclasses.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
  virtual void translate_from(ProfileData* data) {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
  virtual void print_data_on(outputStream* st) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
    ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
  void print_shared(outputStream* st, const char* name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   451
  void tab(outputStream* st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   453
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
// BitData
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
// A BitData holds a flag or two in its header.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
class BitData : public ProfileData {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
protected:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
  enum {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
    // null_seen:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
    //  saw a null operand (cast/aastore/instanceof)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
    null_seen_flag              = DataLayout::first_flag + 0
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
  enum { bit_cell_count = 0 };  // no additional data fields needed.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
  BitData(DataLayout* layout) : ProfileData(layout) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
  virtual bool is_BitData() { return true; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
  static int static_cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
    return bit_cell_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
  virtual int cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
    return static_cell_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
  // Accessor
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
  // The null_seen flag bit is specially known to the interpreter.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
  // Consulting it allows the compiler to avoid setting up null_check traps.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
  bool null_seen()     { return flag_at(null_seen_flag); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
  void set_null_seen()    { set_flag_at(null_seen_flag); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
  // Code generation support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
  static int null_seen_byte_constant() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
    return flag_number_to_byte_constant(null_seen_flag);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
  static ByteSize bit_data_size() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
    return cell_offset(bit_cell_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
  void print_data_on(outputStream* st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
// CounterData
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
// A CounterData corresponds to a simple counter.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
class CounterData : public BitData {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
protected:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
  enum {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
    count_off,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
    counter_cell_count
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
  CounterData(DataLayout* layout) : BitData(layout) {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
  virtual bool is_CounterData() { return true; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
  static int static_cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
    return counter_cell_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
  virtual int cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
    return static_cell_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
  // Direct accessor
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
  uint count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
    return uint_at(count_off);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
  // Code generation support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
  static ByteSize count_offset() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
    return cell_offset(count_off);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
  static ByteSize counter_data_size() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
    return cell_offset(counter_cell_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
4892
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   537
  void set_count(uint count) {
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   538
    set_uint_at(count_off, count);
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   539
  }
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   540
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
  void print_data_on(outputStream* st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   545
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
// JumpData
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
// A JumpData is used to access profiling information for a direct
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
// branch.  It is a counter, used for counting the number of branches,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
// plus a data displacement, used for realigning the data pointer to
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
// the corresponding target bci.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
class JumpData : public ProfileData {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
protected:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
  enum {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
    taken_off_set,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
    displacement_off_set,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
    jump_cell_count
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
  void set_displacement(int displacement) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
    set_int_at(displacement_off_set, displacement);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
489c9b5090e2 Initial load
duke
parents:
diff changeset
   564
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
  JumpData(DataLayout* layout) : ProfileData(layout) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
    assert(layout->tag() == DataLayout::jump_data_tag ||
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
      layout->tag() == DataLayout::branch_data_tag, "wrong type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
  virtual bool is_JumpData() { return true; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
  static int static_cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
    return jump_cell_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
  virtual int cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
    return static_cell_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
  // Direct accessor
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
  uint taken() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   582
    return uint_at(taken_off_set);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
  }
10514
e229a19078cf 7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents: 9446
diff changeset
   584
e229a19078cf 7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents: 9446
diff changeset
   585
  void set_taken(uint cnt) {
e229a19078cf 7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents: 9446
diff changeset
   586
    set_uint_at(taken_off_set, cnt);
e229a19078cf 7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents: 9446
diff changeset
   587
  }
e229a19078cf 7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents: 9446
diff changeset
   588
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
  // Saturating counter
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
  uint inc_taken() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
    uint cnt = taken() + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
    // Did we wrap? Will compiler screw us??
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
    if (cnt == 0) cnt--;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
    set_uint_at(taken_off_set, cnt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
    return cnt;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
  int displacement() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
    return int_at(displacement_off_set);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
  // Code generation support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
  static ByteSize taken_offset() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   604
    return cell_offset(taken_off_set);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
  static ByteSize displacement_offset() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
    return cell_offset(displacement_off_set);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
  // Specific initialization.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
   612
  void post_initialize(BytecodeStream* stream, MethodData* mdo);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
  void print_data_on(outputStream* st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
// ReceiverTypeData
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
// A ReceiverTypeData is used to access profiling information about a
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
// dynamic type check.  It consists of a counter which counts the total times
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
   623
// that the check is reached, and a series of (Klass*, count) pairs
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
// which are used to store a type profile for the receiver of the check.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
class ReceiverTypeData : public CounterData {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
protected:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
  enum {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
    receiver0_offset = counter_cell_count,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
    count0_offset,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
    receiver_type_row_cell_count = (count0_offset + 1) - receiver0_offset
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
  ReceiverTypeData(DataLayout* layout) : CounterData(layout) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
    assert(layout->tag() == DataLayout::receiver_type_data_tag ||
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
           layout->tag() == DataLayout::virtual_call_data_tag, "wrong type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
  virtual bool is_ReceiverTypeData() { return true; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
  static int static_cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
    return counter_cell_count + (uint) TypeProfileWidth * receiver_type_row_cell_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
  virtual int cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
    return static_cell_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
  // Direct accessors
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
  static uint row_limit() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
    return TypeProfileWidth;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
  static int receiver_cell_index(uint row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
    return receiver0_offset + row * receiver_type_row_cell_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
  static int receiver_count_cell_index(uint row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
    return count0_offset + row * receiver_type_row_cell_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
   660
  Klass* receiver(uint row) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
    assert(row < row_limit(), "oob");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
   663
    Klass* recv = (Klass*)intptr_at(receiver_cell_index(row));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
   664
    assert(recv == NULL || recv->is_klass(), "wrong type");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   665
    return recv;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
   668
  void set_receiver(uint row, Klass* k) {
3696
9e5d9b5e1049 4957990: Perm heap bloat in JVM
ysr
parents: 670
diff changeset
   669
    assert((uint)row < row_limit(), "oob");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
   670
    set_intptr_at(receiver_cell_index(row), (uintptr_t)k);
3696
9e5d9b5e1049 4957990: Perm heap bloat in JVM
ysr
parents: 670
diff changeset
   671
  }
9e5d9b5e1049 4957990: Perm heap bloat in JVM
ysr
parents: 670
diff changeset
   672
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   673
  uint receiver_count(uint row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   674
    assert(row < row_limit(), "oob");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
    return uint_at(receiver_count_cell_index(row));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
3696
9e5d9b5e1049 4957990: Perm heap bloat in JVM
ysr
parents: 670
diff changeset
   678
  void set_receiver_count(uint row, uint count) {
9e5d9b5e1049 4957990: Perm heap bloat in JVM
ysr
parents: 670
diff changeset
   679
    assert(row < row_limit(), "oob");
9e5d9b5e1049 4957990: Perm heap bloat in JVM
ysr
parents: 670
diff changeset
   680
    set_uint_at(receiver_count_cell_index(row), count);
9e5d9b5e1049 4957990: Perm heap bloat in JVM
ysr
parents: 670
diff changeset
   681
  }
9e5d9b5e1049 4957990: Perm heap bloat in JVM
ysr
parents: 670
diff changeset
   682
9e5d9b5e1049 4957990: Perm heap bloat in JVM
ysr
parents: 670
diff changeset
   683
  void clear_row(uint row) {
9e5d9b5e1049 4957990: Perm heap bloat in JVM
ysr
parents: 670
diff changeset
   684
    assert(row < row_limit(), "oob");
4892
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   685
    // Clear total count - indicator of polymorphic call site.
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   686
    // The site may look like as monomorphic after that but
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   687
    // it allow to have more accurate profiling information because
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   688
    // there was execution phase change since klasses were unloaded.
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   689
    // If the site is still polymorphic then MDO will be updated
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   690
    // to reflect it. But it could be the case that the site becomes
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   691
    // only bimorphic. Then keeping total count not 0 will be wrong.
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   692
    // Even if we use monomorphic (when it is not) for compilation
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   693
    // we will only have trap, deoptimization and recompile again
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   694
    // with updated MDO after executing method in Interpreter.
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   695
    // An additional receiver will be recorded in the cleaned row
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   696
    // during next call execution.
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   697
    //
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   698
    // Note: our profiling logic works with empty rows in any slot.
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   699
    // We do sorting a profiling info (ciCallProfile) for compilation.
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   700
    //
e977b527544a 6923002: assert(false,"this call site should not be polymorphic")
kvn
parents: 4754
diff changeset
   701
    set_count(0);
3696
9e5d9b5e1049 4957990: Perm heap bloat in JVM
ysr
parents: 670
diff changeset
   702
    set_receiver(row, NULL);
9e5d9b5e1049 4957990: Perm heap bloat in JVM
ysr
parents: 670
diff changeset
   703
    set_receiver_count(row, 0);
9e5d9b5e1049 4957990: Perm heap bloat in JVM
ysr
parents: 670
diff changeset
   704
  }
9e5d9b5e1049 4957990: Perm heap bloat in JVM
ysr
parents: 670
diff changeset
   705
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
  // Code generation support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
  static ByteSize receiver_offset(uint row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
    return cell_offset(receiver_cell_index(row));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
  static ByteSize receiver_count_offset(uint row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   711
    return cell_offset(receiver_count_cell_index(row));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   713
  static ByteSize receiver_type_data_size() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
    return cell_offset(static_cell_count());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   715
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   716
489c9b5090e2 Initial load
duke
parents:
diff changeset
   717
  // GC support
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
   718
  virtual void clean_weak_klass_links(BoolObjectClosure* is_alive_closure);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   719
489c9b5090e2 Initial load
duke
parents:
diff changeset
   720
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
  void print_receiver_data_on(outputStream* st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
  void print_data_on(outputStream* st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
// VirtualCallData
489c9b5090e2 Initial load
duke
parents:
diff changeset
   727
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
// A VirtualCallData is used to access profiling information about a
489c9b5090e2 Initial load
duke
parents:
diff changeset
   729
// virtual call.  For now, it has nothing more than a ReceiverTypeData.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   730
class VirtualCallData : public ReceiverTypeData {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
  VirtualCallData(DataLayout* layout) : ReceiverTypeData(layout) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
    assert(layout->tag() == DataLayout::virtual_call_data_tag, "wrong type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
  virtual bool is_VirtualCallData() { return true; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
  static int static_cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
    // At this point we could add more profile state, e.g., for arguments.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
    // But for now it's the same size as the base record type.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
    return ReceiverTypeData::static_cell_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   742
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   743
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
  virtual int cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
    return static_cell_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
  // Direct accessors
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
  static ByteSize virtual_call_data_size() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
    return cell_offset(static_cell_count());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
  void print_data_on(outputStream* st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
// RetData
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
// A RetData is used to access profiling information for a ret bytecode.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
// It is composed of a count of the number of times that the ret has
489c9b5090e2 Initial load
duke
parents:
diff changeset
   762
// been executed, followed by a series of triples of the form
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
// (bci, count, di) which count the number of times that some bci was the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   764
// target of the ret and cache a corresponding data displacement.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   765
class RetData : public CounterData {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
protected:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
  enum {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
    bci0_offset = counter_cell_count,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
    count0_offset,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
    displacement0_offset,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
    ret_row_cell_count = (displacement0_offset + 1) - bci0_offset
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
489c9b5090e2 Initial load
duke
parents:
diff changeset
   774
  void set_bci(uint row, int bci) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   775
    assert((uint)row < row_limit(), "oob");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
    set_int_at(bci0_offset + row * ret_row_cell_count, bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   778
  void release_set_bci(uint row, int bci) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
    assert((uint)row < row_limit(), "oob");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
    // 'release' when setting the bci acts as a valid flag for other
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
    // threads wrt bci_count and bci_displacement.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   782
    release_set_int_at(bci0_offset + row * ret_row_cell_count, bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
  void set_bci_count(uint row, uint count) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
    assert((uint)row < row_limit(), "oob");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
    set_uint_at(count0_offset + row * ret_row_cell_count, count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
  void set_bci_displacement(uint row, int disp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
    set_int_at(displacement0_offset + row * ret_row_cell_count, disp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
  RetData(DataLayout* layout) : CounterData(layout) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
    assert(layout->tag() == DataLayout::ret_data_tag, "wrong type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
  virtual bool is_RetData() { return true; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
  enum {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
    no_bci = -1 // value of bci when bci1/2 are not in use.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
  static int static_cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
    return counter_cell_count + (uint) BciProfileWidth * ret_row_cell_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   805
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
489c9b5090e2 Initial load
duke
parents:
diff changeset
   807
  virtual int cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   808
    return static_cell_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
  static uint row_limit() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
    return BciProfileWidth;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
  static int bci_cell_index(uint row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   815
    return bci0_offset + row * ret_row_cell_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   816
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   817
  static int bci_count_cell_index(uint row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   818
    return count0_offset + row * ret_row_cell_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   819
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   820
  static int bci_displacement_cell_index(uint row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   821
    return displacement0_offset + row * ret_row_cell_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   822
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
  // Direct accessors
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
  int bci(uint row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   826
    return int_at(bci_cell_index(row));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
  uint bci_count(uint row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
    return uint_at(bci_count_cell_index(row));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
  int bci_displacement(uint row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
    return int_at(bci_displacement_cell_index(row));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
  // Interpreter Runtime support
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
   836
  address fixup_ret(int return_bci, MethodData* mdo);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
  // Code generation support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
  static ByteSize bci_offset(uint row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   840
    return cell_offset(bci_cell_index(row));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   841
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
  static ByteSize bci_count_offset(uint row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
    return cell_offset(bci_count_cell_index(row));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
  static ByteSize bci_displacement_offset(uint row) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
    return cell_offset(bci_displacement_cell_index(row));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
  // Specific initialization.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
   850
  void post_initialize(BytecodeStream* stream, MethodData* mdo);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   851
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
  void print_data_on(outputStream* st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   854
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
// BranchData
489c9b5090e2 Initial load
duke
parents:
diff changeset
   858
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
// A BranchData is used to access profiling data for a two-way branch.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   860
// It consists of taken and not_taken counts as well as a data displacement
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
// for the taken case.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   862
class BranchData : public JumpData {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
protected:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   864
  enum {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
    not_taken_off_set = jump_cell_count,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
    branch_cell_count
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
489c9b5090e2 Initial load
duke
parents:
diff changeset
   869
  void set_displacement(int displacement) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   870
    set_int_at(displacement_off_set, displacement);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   872
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   874
  BranchData(DataLayout* layout) : JumpData(layout) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   875
    assert(layout->tag() == DataLayout::branch_data_tag, "wrong type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   876
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   877
489c9b5090e2 Initial load
duke
parents:
diff changeset
   878
  virtual bool is_BranchData() { return true; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
  static int static_cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   881
    return branch_cell_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   883
489c9b5090e2 Initial load
duke
parents:
diff changeset
   884
  virtual int cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   885
    return static_cell_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   886
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   887
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
  // Direct accessor
489c9b5090e2 Initial load
duke
parents:
diff changeset
   889
  uint not_taken() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   890
    return uint_at(not_taken_off_set);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   891
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   892
10514
e229a19078cf 7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents: 9446
diff changeset
   893
  void set_not_taken(uint cnt) {
e229a19078cf 7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents: 9446
diff changeset
   894
    set_uint_at(not_taken_off_set, cnt);
e229a19078cf 7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents: 9446
diff changeset
   895
  }
e229a19078cf 7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents: 9446
diff changeset
   896
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   897
  uint inc_not_taken() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
    uint cnt = not_taken() + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   899
    // Did we wrap? Will compiler screw us??
489c9b5090e2 Initial load
duke
parents:
diff changeset
   900
    if (cnt == 0) cnt--;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   901
    set_uint_at(not_taken_off_set, cnt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   902
    return cnt;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   903
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   904
489c9b5090e2 Initial load
duke
parents:
diff changeset
   905
  // Code generation support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
  static ByteSize not_taken_offset() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
    return cell_offset(not_taken_off_set);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   908
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
  static ByteSize branch_data_size() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
    return cell_offset(branch_cell_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
489c9b5090e2 Initial load
duke
parents:
diff changeset
   913
  // Specific initialization.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
   914
  void post_initialize(BytecodeStream* stream, MethodData* mdo);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
  void print_data_on(outputStream* st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   918
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
// ArrayData
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
// A ArrayData is a base class for accessing profiling data which does
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
// not have a statically known size.  It consists of an array length
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
// and an array start.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
class ArrayData : public ProfileData {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
protected:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
  friend class DataLayout;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
  enum {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
    array_len_off_set,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
    array_start_off_set
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
  uint array_uint_at(int index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   936
    int aindex = index + array_start_off_set;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
    return uint_at(aindex);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
  int array_int_at(int index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
    int aindex = index + array_start_off_set;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   941
    return int_at(aindex);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   942
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
  oop array_oop_at(int index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
    int aindex = index + array_start_off_set;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
    return oop_at(aindex);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
  void array_set_int_at(int index, int value) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   948
    int aindex = index + array_start_off_set;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   949
    set_int_at(aindex, value);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   950
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
  // Code generation support for subclasses.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
  static ByteSize array_element_offset(int index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   954
    return cell_offset(array_start_off_set + index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   958
  ArrayData(DataLayout* layout) : ProfileData(layout) {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
489c9b5090e2 Initial load
duke
parents:
diff changeset
   960
  virtual bool is_ArrayData() { return true; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   961
489c9b5090e2 Initial load
duke
parents:
diff changeset
   962
  static int static_cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   963
    return -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   964
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   965
489c9b5090e2 Initial load
duke
parents:
diff changeset
   966
  int array_len() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   967
    return int_at_unchecked(array_len_off_set);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   968
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   969
489c9b5090e2 Initial load
duke
parents:
diff changeset
   970
  virtual int cell_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   971
    return array_len() + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   972
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   973
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
  // Code generation support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   975
  static ByteSize array_len_offset() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   976
    return cell_offset(array_len_off_set);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   977
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   978
  static ByteSize array_start_offset() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   979
    return cell_offset(array_start_off_set);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   980
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   981
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   982
489c9b5090e2 Initial load
duke
parents:
diff changeset
   983
// MultiBranchData
489c9b5090e2 Initial load
duke
parents:
diff changeset
   984
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   985
// A MultiBranchData is used to access profiling information for
489c9b5090e2 Initial load
duke
parents:
diff changeset
   986
// a multi-way branch (*switch bytecodes).  It consists of a series
489c9b5090e2 Initial load
duke
parents:
diff changeset
   987
// of (count, displacement) pairs, which count the number of times each
489c9b5090e2 Initial load
duke
parents:
diff changeset
   988
// case was taken and specify the data displacment for each branch target.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   989
class MultiBranchData : public ArrayData {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   990
protected:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   991
  enum {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   992
    default_count_off_set,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
    default_disaplacement_off_set,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
    case_array_start
489c9b5090e2 Initial load
duke
parents:
diff changeset
   995
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
  enum {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
    relative_count_off_set,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   998
    relative_displacement_off_set,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   999
    per_case_cell_count
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1000
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1001
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1002
  void set_default_displacement(int displacement) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
    array_set_int_at(default_disaplacement_off_set, displacement);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1005
  void set_displacement_at(int index, int displacement) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1006
    array_set_int_at(case_array_start +
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1007
                     index * per_case_cell_count +
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1008
                     relative_displacement_off_set,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1009
                     displacement);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1010
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1011
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1012
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1013
  MultiBranchData(DataLayout* layout) : ArrayData(layout) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1014
    assert(layout->tag() == DataLayout::multi_branch_data_tag, "wrong type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1017
  virtual bool is_MultiBranchData() { return true; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1018
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1019
  static int compute_cell_count(BytecodeStream* stream);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1020
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1021
  int number_of_cases() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1022
    int alen = array_len() - 2; // get rid of default case here.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1023
    assert(alen % per_case_cell_count == 0, "must be even");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1024
    return (alen / per_case_cell_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1025
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1026
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1027
  uint default_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1028
    return array_uint_at(default_count_off_set);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1029
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1030
  int default_displacement() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
    return array_int_at(default_disaplacement_off_set);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1032
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1033
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1034
  uint count_at(int index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1035
    return array_uint_at(case_array_start +
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1036
                         index * per_case_cell_count +
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1037
                         relative_count_off_set);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1038
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1039
  int displacement_at(int index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
    return array_int_at(case_array_start +
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
                        index * per_case_cell_count +
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1042
                        relative_displacement_off_set);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1043
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1044
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1045
  // Code generation support
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1046
  static ByteSize default_count_offset() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1047
    return array_element_offset(default_count_off_set);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1048
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1049
  static ByteSize default_displacement_offset() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1050
    return array_element_offset(default_disaplacement_off_set);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1051
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1052
  static ByteSize case_count_offset(int index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1053
    return case_array_offset() +
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1054
           (per_case_size() * index) +
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1055
           relative_count_offset();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1056
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1057
  static ByteSize case_array_offset() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1058
    return array_element_offset(case_array_start);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1059
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1060
  static ByteSize per_case_size() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1061
    return in_ByteSize(per_case_cell_count) * cell_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1062
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1063
  static ByteSize relative_count_offset() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1064
    return in_ByteSize(relative_count_off_set) * cell_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1065
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1066
  static ByteSize relative_displacement_offset() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1067
    return in_ByteSize(relative_displacement_off_set) * cell_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1068
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1069
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
  // Specific initialization.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1071
  void post_initialize(BytecodeStream* stream, MethodData* mdo);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1072
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1073
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1074
  void print_data_on(outputStream* st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1075
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1076
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1077
218
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1078
class ArgInfoData : public ArrayData {
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1079
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1080
public:
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1081
  ArgInfoData(DataLayout* layout) : ArrayData(layout) {
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1082
    assert(layout->tag() == DataLayout::arg_info_data_tag, "wrong type");
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1083
  }
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1084
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1085
  virtual bool is_ArgInfoData() { return true; }
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1086
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1087
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1088
  int number_of_args() {
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1089
    return array_len();
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1090
  }
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1091
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1092
  uint arg_modified(int arg) {
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1093
    return array_uint_at(arg);
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1094
  }
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1095
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1096
  void set_arg_modified(int arg, uint val) {
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1097
    array_set_int_at(arg, val);
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1098
  }
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1099
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1100
#ifndef PRODUCT
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1101
  void print_data_on(outputStream* st);
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1102
#endif
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1103
};
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1104
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1105
// MethodData*
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1106
//
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1107
// A MethodData* holds information which has been collected about
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1108
// a method.  Its layout looks like this:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1109
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1110
// -----------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1111
// | header                    |
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1112
// | klass                     |
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1113
// -----------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1114
// | method                    |
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1115
// | size of the MethodData* |
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1116
// -----------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1117
// | Data entries...           |
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1118
// |   (variable size)         |
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1119
// |                           |
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1120
// .                           .
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1121
// .                           .
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1122
// .                           .
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1123
// |                           |
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1124
// -----------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1125
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
// The data entry area is a heterogeneous array of DataLayouts. Each
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1127
// DataLayout in the array corresponds to a specific bytecode in the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1128
// method.  The entries in the array are sorted by the corresponding
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1129
// bytecode.  Access to the data is via resource-allocated ProfileData,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1130
// which point to the underlying blocks of DataLayout structures.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1131
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1132
// During interpretation, if profiling in enabled, the interpreter
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1133
// maintains a method data pointer (mdp), which points at the entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1134
// in the array corresponding to the current bci.  In the course of
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1135
// intepretation, when a bytecode is encountered that has profile data
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1136
// associated with it, the entry pointed to by mdp is updated, then the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1137
// mdp is adjusted to point to the next appropriate DataLayout.  If mdp
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1138
// is NULL to begin with, the interpreter assumes that the current method
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1139
// is not (yet) being profiled.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1140
//
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1141
// In MethodData* parlance, "dp" is a "data pointer", the actual address
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1142
// of a DataLayout element.  A "di" is a "data index", the offset in bytes
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1143
// from the base of the data entry array.  A "displacement" is the byte offset
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1144
// in certain ProfileData objects that indicate the amount the mdp must be
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1145
// adjusted in the event of a change in control flow.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1146
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1147
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1148
class MethodData : public Metadata {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1149
  friend class VMStructs;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1150
private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1151
  friend class ProfileData;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1152
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1153
  // Back pointer to the Method*
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1154
  Method* _method;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1155
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1156
  // Size of this oop in bytes
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1157
  int _size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1158
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1159
  // Cached hint for bci_to_dp and bci_to_data
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1160
  int _hint_di;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1161
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1162
  MethodData(methodHandle method, int size, TRAPS);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1163
public:
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1164
  static MethodData* allocate(ClassLoaderData* loader_data, methodHandle method, TRAPS);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1165
  MethodData() {}; // For ciMethodData
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1166
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1167
  bool is_methodData() const volatile { return true; }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1168
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1169
  // Whole-method sticky bits and flags
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1170
  enum {
9446
748a37b25d10 5091921: Sign flip issues in loop optimizer
kvn
parents: 8652
diff changeset
  1171
    _trap_hist_limit    = 17,   // decoupled from Deoptimization::Reason_LIMIT
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1172
    _trap_hist_mask     = max_jubyte,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1173
    _extra_data_count   = 4     // extra DataLayout headers, for trap history
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
  }; // Public flag values
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1175
private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
  uint _nof_decompiles;             // count of all nmethod removals
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
  uint _nof_overflow_recompiles;    // recompile count, excluding recomp. bits
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
  uint _nof_overflow_traps;         // trap count, excluding _trap_hist
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
  union {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
    intptr_t _align;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1181
    u1 _array[_trap_hist_limit];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1182
  } _trap_hist;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1183
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1184
  // Support for interprocedural escape analysis, from Thomas Kotzmann.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1185
  intx              _eflags;          // flags on escape information
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1186
  intx              _arg_local;       // bit set of non-escaping arguments
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1187
  intx              _arg_stack;       // bit set of stack-allocatable arguments
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
  intx              _arg_returned;    // bit set of returned arguments
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1190
  int _creation_mileage;              // method mileage at MDO creation
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1191
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1192
  // How many invocations has this MDO seen?
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1193
  // These counters are used to determine the exact age of MDO.
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1194
  // We need those because in tiered a method can be concurrently
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1195
  // executed at different levels.
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1196
  InvocationCounter _invocation_counter;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1197
  // Same for backedges.
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1198
  InvocationCounter _backedge_counter;
8322
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1199
  // Counter values at the time profiling started.
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1200
  int               _invocation_counter_start;
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1201
  int               _backedge_counter_start;
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1202
  // Number of loops and blocks is computed when compiling the first
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1203
  // time with C1. It is used to determine if method is trivial.
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1204
  short             _num_loops;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1205
  short             _num_blocks;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1206
  // Highest compile level this method has ever seen.
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1207
  u1                _highest_comp_level;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1208
  // Same for OSR level
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1209
  u1                _highest_osr_comp_level;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1210
  // Does this method contain anything worth profiling?
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1211
  bool              _would_profile;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1212
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1213
  // Size of _data array in bytes.  (Excludes header and extra_data fields.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1214
  int _data_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1216
  // Beginning of the data entries
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1217
  intptr_t _data[1];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1218
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1219
  // Helper for size computation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1220
  static int compute_data_size(BytecodeStream* stream);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1221
  static int bytecode_cell_count(Bytecodes::Code code);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1222
  enum { no_profile_data = -1, variable_cell_count = -2 };
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1223
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1224
  // Helper for initialization
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1225
  DataLayout* data_layout_at(int data_index) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1226
    assert(data_index % sizeof(intptr_t) == 0, "unaligned");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1227
    return (DataLayout*) (((address)_data) + data_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1228
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1229
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1230
  // Initialize an individual data segment.  Returns the size of
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1231
  // the segment in bytes.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1232
  int initialize_data(BytecodeStream* stream, int data_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1233
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
  // Helper for data_at
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1235
  DataLayout* limit_data_position() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1236
    return (DataLayout*)((address)data_base() + _data_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1237
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1238
  bool out_of_bounds(int data_index) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1239
    return data_index >= data_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1240
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1242
  // Give each of the data entries a chance to perform specific
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1243
  // data initialization.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1244
  void post_initialize(BytecodeStream* stream);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1245
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1246
  // hint accessors
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1247
  int      hint_di() const  { return _hint_di; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1248
  void set_hint_di(int di)  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1249
    assert(!out_of_bounds(di), "hint_di out of bounds");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1250
    _hint_di = di;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1251
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1252
  ProfileData* data_before(int bci) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1253
    // avoid SEGV on this edge case
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1254
    if (data_size() == 0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1255
      return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1256
    int hint = hint_di();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1257
    if (data_layout_at(hint)->bci() <= bci)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1258
      return data_at(hint);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1259
    return first_data();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1260
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1261
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1262
  // What is the index of the first data entry?
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1263
  int first_di() const { return 0; }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
  // Find or create an extra ProfileData:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1266
  ProfileData* bci_to_extra_data(int bci, bool create_if_missing);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
218
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1268
  // return the argument info cell
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1269
  ArgInfoData *arg_info();
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1270
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
  static int header_size() {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1273
    return sizeof(MethodData)/wordSize;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1274
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1276
  // Compute the size of a MethodData* before it is created.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
  static int compute_allocation_size_in_bytes(methodHandle method);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1278
  static int compute_allocation_size_in_words(methodHandle method);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1279
  static int compute_extra_data_count(int data_size, int empty_bc_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1280
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1281
  // Determine if a given bytecode can have profile information.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1282
  static bool bytecode_has_profile(Bytecodes::Code code) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1283
    return bytecode_cell_count(code) != no_profile_data;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1284
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1285
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1286
  // Perform initialization of a new MethodData*
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1287
  void initialize(methodHandle method);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1288
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1289
  // My size
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1290
  int size_in_bytes() const { return _size; }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1291
  int size() const    { return align_object_size(align_size_up(_size, BytesPerWord)/BytesPerWord); }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1292
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
  int      creation_mileage() const  { return _creation_mileage; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1294
  void set_creation_mileage(int x)   { _creation_mileage = x; }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1295
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1296
  int invocation_count() {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1297
    if (invocation_counter()->carry()) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1298
      return InvocationCounter::count_limit;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1299
    }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1300
    return invocation_counter()->count();
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1301
  }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1302
  int backedge_count() {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1303
    if (backedge_counter()->carry()) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1304
      return InvocationCounter::count_limit;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1305
    }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1306
    return backedge_counter()->count();
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1307
  }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1308
8322
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1309
  int invocation_count_start() {
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1310
    if (invocation_counter()->carry()) {
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1311
      return 0;
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1312
    }
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1313
    return _invocation_counter_start;
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1314
  }
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1315
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1316
  int backedge_count_start() {
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1317
    if (backedge_counter()->carry()) {
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1318
      return 0;
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1319
    }
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1320
    return _backedge_counter_start;
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1321
  }
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1322
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1323
  int invocation_count_delta() { return invocation_count() - invocation_count_start(); }
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1324
  int backedge_count_delta()   { return backedge_count()   - backedge_count_start();   }
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1325
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1326
  void reset_start_counters() {
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1327
    _invocation_counter_start = invocation_count();
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1328
    _backedge_counter_start = backedge_count();
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1329
  }
8f11ba61239f 7017434: Tiered needs to support reprofiling
iveresov
parents: 7397
diff changeset
  1330
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1331
  InvocationCounter* invocation_counter()     { return &_invocation_counter; }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1332
  InvocationCounter* backedge_counter()       { return &_backedge_counter;   }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1333
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1334
  void set_would_profile(bool p)              { _would_profile = p;    }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1335
  bool would_profile() const                  { return _would_profile; }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1336
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1337
  int highest_comp_level()                    { return _highest_comp_level;      }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1338
  void set_highest_comp_level(int level)      { _highest_comp_level = level;     }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1339
  int highest_osr_comp_level()                { return _highest_osr_comp_level;  }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1340
  void set_highest_osr_comp_level(int level)  { _highest_osr_comp_level = level; }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1341
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1342
  int num_loops() const                       { return _num_loops;  }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1343
  void set_num_loops(int n)                   { _num_loops = n;     }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1344
  int num_blocks() const                      { return _num_blocks; }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1345
  void set_num_blocks(int n)                  { _num_blocks = n;    }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1346
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1347
  bool is_mature() const;  // consult mileage and ProfileMaturityPercentage
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1348
  static int mileage_of(Method* m);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1349
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1350
  // Support for interprocedural escape analysis, from Thomas Kotzmann.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1351
  enum EscapeFlag {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1352
    estimated    = 1 << 0,
251
cb2e73f71205 6680665: bytecode Escape Analyzer produces incorrect escape information for methods without oop arguments
kvn
parents: 218
diff changeset
  1353
    return_local = 1 << 1,
cb2e73f71205 6680665: bytecode Escape Analyzer produces incorrect escape information for methods without oop arguments
kvn
parents: 218
diff changeset
  1354
    return_allocated = 1 << 2,
cb2e73f71205 6680665: bytecode Escape Analyzer produces incorrect escape information for methods without oop arguments
kvn
parents: 218
diff changeset
  1355
    allocated_escapes = 1 << 3,
cb2e73f71205 6680665: bytecode Escape Analyzer produces incorrect escape information for methods without oop arguments
kvn
parents: 218
diff changeset
  1356
    unknown_modified = 1 << 4
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1357
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1358
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1359
  intx eflags()                                  { return _eflags; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1360
  intx arg_local()                               { return _arg_local; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1361
  intx arg_stack()                               { return _arg_stack; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1362
  intx arg_returned()                            { return _arg_returned; }
218
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1363
  uint arg_modified(int a)                       { ArgInfoData *aid = arg_info();
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1364
                                                   assert(a >= 0 && a < aid->number_of_args(), "valid argument number");
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1365
                                                   return aid->arg_modified(a); }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1366
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1367
  void set_eflags(intx v)                        { _eflags = v; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1368
  void set_arg_local(intx v)                     { _arg_local = v; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1369
  void set_arg_stack(intx v)                     { _arg_stack = v; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1370
  void set_arg_returned(intx v)                  { _arg_returned = v; }
218
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1371
  void set_arg_modified(int a, uint v)           { ArgInfoData *aid = arg_info();
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1372
                                                   assert(a >= 0 && a < aid->number_of_args(), "valid argument number");
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1373
a0e996680b05 6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents: 1
diff changeset
  1374
                                                   aid->set_arg_modified(a, v); }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1375
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1376
  void clear_escape_info()                       { _eflags = _arg_local = _arg_stack = _arg_returned = 0; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1377
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1378
  // Location and size of data area
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1379
  address data_base() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1380
    return (address) _data;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1381
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1382
  int data_size() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1383
    return _data_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1384
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1385
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1386
  // Accessors
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1387
  Method* method() const { return _method; }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1388
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1389
  // Get the data at an arbitrary (sort of) data index.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1390
  ProfileData* data_at(int data_index) const;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1391
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1392
  // Walk through the data in order.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1393
  ProfileData* first_data() const { return data_at(first_di()); }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1394
  ProfileData* next_data(ProfileData* current) const;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1395
  bool is_valid(ProfileData* current) const { return current != NULL; }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1396
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1397
  // Convert a dp (data pointer) to a di (data index).
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1398
  int dp_to_di(address dp) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1399
    return dp - ((address)_data);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1400
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1401
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1402
  address di_to_dp(int di) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1403
    return (address)data_layout_at(di);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1404
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1405
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1406
  // bci to di/dp conversion.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1407
  address bci_to_dp(int bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1408
  int bci_to_di(int bci) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1409
    return dp_to_di(bci_to_dp(bci));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1410
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1411
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1412
  // Get the data at an arbitrary bci, or NULL if there is none.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1413
  ProfileData* bci_to_data(int bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1414
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1415
  // Same, but try to create an extra_data record if one is needed:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1416
  ProfileData* allocate_bci_to_data(int bci) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1417
    ProfileData* data = bci_to_data(bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1418
    return (data != NULL) ? data : bci_to_extra_data(bci, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1419
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1420
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1421
  // Add a handful of extra data records, for trap tracking.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1422
  DataLayout* extra_data_base() const { return limit_data_position(); }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1423
  DataLayout* extra_data_limit() const { return (DataLayout*)((address)this + size_in_bytes()); }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1424
  int extra_data_size() const { return (address)extra_data_limit()
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1425
                               - (address)extra_data_base(); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1426
  static DataLayout* next_extra(DataLayout* dp) { return (DataLayout*)((address)dp + in_bytes(DataLayout::cell_offset(0))); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1427
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1428
  // Return (uint)-1 for overflow.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1429
  uint trap_count(int reason) const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1430
    assert((uint)reason < _trap_hist_limit, "oob");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1431
    return (int)((_trap_hist._array[reason]+1) & _trap_hist_mask) - 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1432
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1433
  // For loops:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1434
  static uint trap_reason_limit() { return _trap_hist_limit; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1435
  static uint trap_count_limit()  { return _trap_hist_mask; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1436
  uint inc_trap_count(int reason) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1437
    // Count another trap, anywhere in this method.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1438
    assert(reason >= 0, "must be single trap");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1439
    if ((uint)reason < _trap_hist_limit) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1440
      uint cnt1 = 1 + _trap_hist._array[reason];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1441
      if ((cnt1 & _trap_hist_mask) != 0) {  // if no counter overflow...
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1442
        _trap_hist._array[reason] = cnt1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1443
        return cnt1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1444
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1445
        return _trap_hist_mask + (++_nof_overflow_traps);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1446
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1447
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1448
      // Could not represent the count in the histogram.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1449
      return (++_nof_overflow_traps);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1450
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1451
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1452
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1453
  uint overflow_trap_count() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1454
    return _nof_overflow_traps;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1455
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1456
  uint overflow_recompile_count() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1457
    return _nof_overflow_recompiles;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1458
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1459
  void inc_overflow_recompile_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1460
    _nof_overflow_recompiles += 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1461
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1462
  uint decompile_count() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1463
    return _nof_decompiles;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1464
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1465
  void inc_decompile_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1466
    _nof_decompiles += 1;
4754
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 3795
diff changeset
  1467
    if (decompile_count() > (uint)PerMethodRecompilationCutoff) {
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1468
      method()->set_not_compilable(CompLevel_full_optimization);
4754
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 3795
diff changeset
  1469
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1470
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1471
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1472
  // Support for code generation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1473
  static ByteSize data_offset() {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1474
    return byte_offset_of(MethodData, _data[0]);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1475
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1476
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1477
  static ByteSize invocation_counter_offset() {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1478
    return byte_offset_of(MethodData, _invocation_counter);
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1479
  }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1480
  static ByteSize backedge_counter_offset() {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1481
    return byte_offset_of(MethodData, _backedge_counter);
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1482
  }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5547
diff changeset
  1483
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1484
  // Deallocation support - no pointer fields to deallocate
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1485
  void deallocate_contents(ClassLoaderData* loader_data) {}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1486
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1487
  // GC support
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1488
  void set_size(int object_size_in_bytes) { _size = object_size_in_bytes; }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1489
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1490
  // Printing
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1491
#ifndef PRODUCT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1492
  void print_on      (outputStream* st) const;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1493
#endif
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1494
  void print_value_on(outputStream* st) const;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1495
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1496
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1497
  // printing support for method data
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1498
  void print_data_on(outputStream* st) const;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1499
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1500
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1501
  const char* internal_name() const { return "{method data}"; }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1502
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1503
  // verification
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 10514
diff changeset
  1504
  void verify_on(outputStream* st);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1505
  void verify_data_on(outputStream* st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1506
};
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
  1507
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
  1508
#endif // SHARE_VM_OOPS_METHODDATAOOP_HPP