/*

 * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.

 * Copyright 2012, 2013 SAP AG. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

// This file defines a set of macros which are used by the c++-interpreter

// for updating a method's methodData object.

#ifndef SHARE_VM_INTERPRETER_BYTECODEINTERPRETERPROFILING_HPP

#define SHARE_VM_INTERPRETER_BYTECODEINTERPRETERPROFILING_HPP

// Global settings /////////////////////////////////////////////////////////////

// Enables profiling support.

#if defined(COMPILER2)

#define CC_INTERP_PROFILE

#endif

// Enables assertions for profiling code (also works in product-builds).

// #define CC_INTERP_PROFILE_WITH_ASSERTIONS

#ifdef CC_INTERP

// Empty dummy implementations if profiling code is switched off. //////////////

#ifndef CC_INTERP_PROFILE

#define SET_MDX(mdx)

#define BI_PROFILE_GET_OR_CREATE_METHOD_DATA(exception_handler)                \

  if (ProfileInterpreter) {                                                    \

    ShouldNotReachHere();                                                      \

  }

#define BI_PROFILE_ALIGN_TO_CURRENT_BCI()

#define BI_PROFILE_UPDATE_JUMP()

#define BI_PROFILE_UPDATE_BRANCH(is_taken)

#define BI_PROFILE_UPDATE_RET(bci)

#define BI_PROFILE_SUBTYPECHECK_FAILED(receiver)

#define BI_PROFILE_UPDATE_CHECKCAST(null_seen, receiver)

#define BI_PROFILE_UPDATE_INSTANCEOF(null_seen, receiver)

#define BI_PROFILE_UPDATE_CALL()

#define BI_PROFILE_UPDATE_FINALCALL()

#define BI_PROFILE_UPDATE_VIRTUALCALL(receiver)

#define BI_PROFILE_UPDATE_SWITCH(switch_index)

#else

// Non-dummy implementations ///////////////////////////////////////////////////

// Accessors for the current method data pointer 'mdx'.

#define MDX()        (istate->mdx())

#define SET_MDX(mdx)                                                           \

  if (TraceProfileInterpreter) {                                               \

    /* Let it look like TraceBytecodes' format. */                             \

    tty->print_cr("[%d]           %4d  "                                       \

                  "mdx " PTR_FORMAT "(%d)"                                     \

                  "  "                                                         \

                  " \t-> " PTR_FORMAT "(%d)",                                  \

                (int) THREAD->osthread()->thread_id(),                         \

                BCI(),                                                         \

                MDX(),                                                         \

                (MDX() == NULL                                                 \

                 ? 0                                                           \

                 : istate->method()->method_data()->dp_to_di((address)MDX())), \

                mdx,                                                           \

                istate->method()->method_data()->dp_to_di((address)mdx)        \

                );                                                             \

  };                                                                           \

  istate->set_mdx(mdx);

// Dumps the profiling method data for the current method.

#ifdef PRODUCT

#define BI_PROFILE_PRINT_METHOD_DATA()

#else  // PRODUCT

#define BI_PROFILE_PRINT_METHOD_DATA()                                         \

  {                                                                            \

    ttyLocker ttyl;                                                            \

    MethodData *md = istate->method()->method_data();                          \

    tty->cr();                                                                 \

    tty->print("method data at mdx " PTR_FORMAT "(0) for",                     \

               md->data_layout_at(md->bci_to_di(0)));                          \

    istate->method()->print_short_name(tty);                                   \

    tty->cr();                                                                 \

    if (md != NULL) {                                                          \

      md->print_data_on(tty);                                                  \

      address mdx = (address) MDX();                                           \

      if (mdx != NULL) {                                                       \

        tty->print_cr("current mdx " PTR_FORMAT "(%d)",                        \

                      mdx,                                                     \

                      istate->method()->method_data()->dp_to_di(mdx));         \

      }                                                                        \

    } else {                                                                   \

      tty->print_cr("no method data");                                         \

    }                                                                          \

  }

#endif // PRODUCT

// Gets or creates the profiling method data and initializes mdx.

#define BI_PROFILE_GET_OR_CREATE_METHOD_DATA(exception_handler)                \

  if (ProfileInterpreter && MDX() == NULL) {                                   \

    /* Mdx is not yet initialized for this activation. */                      \

    MethodData *md = istate->method()->method_data();                          \

    if (md == NULL) {                                                          \

      MethodCounters* mcs;                                                     \

      GET_METHOD_COUNTERS(mcs);                                                \

      /* The profiling method data doesn't exist for this method, */           \

      /* create it if the counters have overflowed. */                         \

      if (mcs->invocation_counter()                                            \

                         ->reached_ProfileLimit(mcs->backedge_counter())) {    \

        /* Must use CALL_VM, because an async exception may be pending. */     \

        CALL_VM((InterpreterRuntime::profile_method(THREAD)),                  \

                exception_handler);                                            \

        md = istate->method()->method_data();                                  \

        if (md != NULL) {                                                      \

          if (TraceProfileInterpreter) {                                       \

            BI_PROFILE_PRINT_METHOD_DATA();                                    \

          }                                                                    \

          Method *m = istate->method();                                        \

          int bci = m->bci_from(pc);                                           \

          jint di = md->bci_to_di(bci);                                        \

          SET_MDX(md->data_layout_at(di));                                     \

        }                                                                      \

      }                                                                        \

    } else {                                                                   \

      /* The profiling method data exists, align the method data pointer */    \

      /* mdx to the current bytecode index. */                                 \

      if (TraceProfileInterpreter) {                                           \

        BI_PROFILE_PRINT_METHOD_DATA();                                        \

      }                                                                        \

      SET_MDX(md->data_layout_at(md->bci_to_di(BCI())));                       \

    }                                                                          \

  }

// Asserts that the current method data pointer mdx corresponds

// to the current bytecode.

#if defined(CC_INTERP_PROFILE_WITH_ASSERTIONS)

#define BI_PROFILE_CHECK_MDX()                                                 \

  {                                                                            \

    MethodData *md = istate->method()->method_data();                          \

    address mdx  = (address) MDX();                                            \

    address mdx2 = (address) md->data_layout_at(md->bci_to_di(BCI()));         \

    guarantee(md   != NULL, "1");                                              \

    guarantee(mdx  != NULL, "2");                                              \

    guarantee(mdx2 != NULL, "3");                                              \

    if (mdx != mdx2) {                                                         \

      BI_PROFILE_PRINT_METHOD_DATA();                                          \

      fatal3("invalid mdx at bci %d:"                                          \

             " was " PTR_FORMAT                                                \

             " but expected " PTR_FORMAT,                                      \

             BCI(),                                                            \

             mdx,                                                              \

             mdx2);                                                            \

    }                                                                          \

  }

#else

#define BI_PROFILE_CHECK_MDX()

#endif

// Aligns the method data pointer mdx to the current bytecode index.

#define BI_PROFILE_ALIGN_TO_CURRENT_BCI()                                      \

  if (ProfileInterpreter && MDX() != NULL) {                                   \

    MethodData *md = istate->method()->method_data();                          \

    SET_MDX(md->data_layout_at(md->bci_to_di(BCI())));                         \

  }

// Updates profiling data for a jump.

#define BI_PROFILE_UPDATE_JUMP()                                               \

  if (ProfileInterpreter && MDX() != NULL) {                                   \

    BI_PROFILE_CHECK_MDX();                                                    \

    JumpData::increment_taken_count_no_overflow(MDX());                        \

    /* Remember last branch taken count. */                                    \

    mdo_last_branch_taken_count = JumpData::taken_count(MDX());                \

    SET_MDX(JumpData::advance_taken(MDX()));                                   \

  }

// Updates profiling data for a taken/not taken branch.

#define BI_PROFILE_UPDATE_BRANCH(is_taken)                                     \

  if (ProfileInterpreter && MDX() != NULL) {                                   \

    BI_PROFILE_CHECK_MDX();                                                    \

    if (is_taken) {                                                            \

      BranchData::increment_taken_count_no_overflow(MDX());                    \

      /* Remember last branch taken count. */                                  \

      mdo_last_branch_taken_count = BranchData::taken_count(MDX());            \

      SET_MDX(BranchData::advance_taken(MDX()));                               \

    } else {                                                                   \

      BranchData::increment_not_taken_count_no_overflow(MDX());                \

      SET_MDX(BranchData::advance_not_taken(MDX()));                           \

    }                                                                          \

  }

// Updates profiling data for a ret with given bci.

#define BI_PROFILE_UPDATE_RET(bci)                                             \

  if (ProfileInterpreter && MDX() != NULL) {                                   \

    BI_PROFILE_CHECK_MDX();                                                    \

    MethodData *md = istate->method()->method_data();                          \

/* FIXME: there is more to do here than increment and advance(mdx)! */         \

    CounterData::increment_count_no_overflow(MDX());                           \

    SET_MDX(RetData::advance(md, bci));                                        \

  }

// Decrement counter at checkcast if the subtype check fails (as template

// interpreter does!).

#define BI_PROFILE_SUBTYPECHECK_FAILED(receiver)                               \

  if (ProfileInterpreter && MDX() != NULL) {                                   \

    BI_PROFILE_CHECK_MDX();                                                    \

    ReceiverTypeData::increment_receiver_count_no_overflow(MDX(), receiver);   \

    ReceiverTypeData::decrement_count(MDX());                                  \

  }

// Updates profiling data for a checkcast (was a null seen? which receiver?).

#define BI_PROFILE_UPDATE_CHECKCAST(null_seen, receiver)                       \

  if (ProfileInterpreter && MDX() != NULL) {                                   \

    BI_PROFILE_CHECK_MDX();                                                    \

    if (null_seen) {                                                           \

      ReceiverTypeData::set_null_seen(MDX());                                  \

    } else {                                                                   \

      /* Template interpreter doesn't increment count. */                      \

      /* ReceiverTypeData::increment_count_no_overflow(MDX()); */              \

      ReceiverTypeData::increment_receiver_count_no_overflow(MDX(), receiver); \

    }                                                                          \

    SET_MDX(ReceiverTypeData::advance(MDX()));                                 \

  }

// Updates profiling data for an instanceof (was a null seen? which receiver?).

#define BI_PROFILE_UPDATE_INSTANCEOF(null_seen, receiver)                      \

  BI_PROFILE_UPDATE_CHECKCAST(null_seen, receiver)

// Updates profiling data for a call.

#define BI_PROFILE_UPDATE_CALL()                                               \

  if (ProfileInterpreter && MDX() != NULL) {                                   \

    BI_PROFILE_CHECK_MDX();                                                    \

    CounterData::increment_count_no_overflow(MDX());                           \

    SET_MDX(CounterData::advance(MDX()));                                      \

  }

// Updates profiling data for a final call.

#define BI_PROFILE_UPDATE_FINALCALL()                                          \

  if (ProfileInterpreter && MDX() != NULL) {                                   \

    BI_PROFILE_CHECK_MDX();                                                    \

    VirtualCallData::increment_count_no_overflow(MDX());                       \

    SET_MDX(VirtualCallData::advance(MDX()));                                  \

  }

// Updates profiling data for a virtual call with given receiver Klass.

#define BI_PROFILE_UPDATE_VIRTUALCALL(receiver)                                \

  if (ProfileInterpreter && MDX() != NULL) {                                   \

    BI_PROFILE_CHECK_MDX();                                                    \

    VirtualCallData::increment_receiver_count_no_overflow(MDX(), receiver);    \

    SET_MDX(VirtualCallData::advance(MDX()));                                  \

  }

// Updates profiling data for a switch (tabelswitch or lookupswitch) with

// given taken index (-1 means default case was taken).

#define BI_PROFILE_UPDATE_SWITCH(switch_index)                                 \

  if (ProfileInterpreter && MDX() != NULL) {                                   \

    BI_PROFILE_CHECK_MDX();                                                    \

    MultiBranchData::increment_count_no_overflow(MDX(), switch_index);         \

    SET_MDX(MultiBranchData::advance(MDX(), switch_index));                    \

  }

// The end /////////////////////////////////////////////////////////////////////

#endif // CC_INTERP_PROFILE

#endif // CC_INTERP

#endif // SHARE_VM_INTERPRETER_BYTECODECINTERPRETERPROFILING_HPP