jdk8-mips64-public/hotspot: src/share/vm/shark/sharkStateScanner.cpp@d2ede61b7a12

6976186: integrate Shark HotSpot changes
Summary: Shark is a JIT compiler for Zero that uses the LLVM compiler infrastructure.
Reviewed-by: kvn, twisti
Contributed-by: Gary Benson <gbenson@redhat.com>

     1 /*

     2  * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved.

     3  * Copyright 2008, 2009 Red Hat, Inc.

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

     5  *

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

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

     8  * published by the Free Software Foundation.

     9  *

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

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

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

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

    14  * accompanied this code).

    15  *

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

    17  * 2 along with this work; if not, write to the Free Software Foundation,

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

    19  *

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

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

    22  * questions.

    23  *

    24  */

    26 #include "incls/_precompiled.incl"

    27 #include "incls/_sharkStateScanner.cpp.incl"

    29 using namespace llvm;

    31 void SharkStateScanner::scan(SharkState* state) {

    32   start_frame();

    34   // Expression stack

    35   stack_integrity_checks(state);

    36   start_stack(state->stack_depth());

    37   for (int i = state->stack_depth() - 1; i >= 0; i--) {

    38     process_stack_slot(

    39       i,

    40       state->stack_addr(i),

    41       stack()->stack_slots_offset() +

    42         i + max_stack() - state->stack_depth());

    43   }

    44   end_stack();

    46   // Monitors

    47   start_monitors(state->num_monitors());

    48   for (int i = 0; i < state->num_monitors(); i++) {

    49     process_monitor(

    50       i,

    51       stack()->monitor_offset(i),

    52       stack()->monitor_object_offset(i));

    53   }

    54   end_monitors();

    56   // Frame header

    57   start_frame_header();

    58   process_oop_tmp_slot(

    59     state->oop_tmp_addr(), stack()->oop_tmp_slot_offset());

    60   process_method_slot(state->method_addr(), stack()->method_slot_offset());

    61   process_pc_slot(stack()->pc_slot_offset());

    62   end_frame_header();

    64   // Local variables

    65   locals_integrity_checks(state);

    66   start_locals();

    67   for (int i = 0; i < max_locals(); i++) {

    68     process_local_slot(

    69       i,

    70       state->local_addr(i),

    71       stack()->locals_slots_offset() + max_locals() - 1 - i);

    72   }

    73   end_locals();

    75   end_frame();

    76 }

    78 #ifndef PRODUCT

    79 void SharkStateScanner::stack_integrity_checks(SharkState* state) {

    80   for (int i = 0; i < state->stack_depth(); i++) {

    81     if (state->stack(i)) {

    82       if (state->stack(i)->is_two_word())

    83         assert(state->stack(i - 1) == NULL, "should be");

    84     }

    85     else {

    86       assert(state->stack(i + 1)->is_two_word(), "should be");

    87     }

    88   }

    89 }

    91 void SharkStateScanner::locals_integrity_checks(SharkState* state) {

    92   for (int i = 0; i < max_locals(); i++) {

    93     if (state->local(i)) {

    94       if (state->local(i)->is_two_word())

    95         assert(state->local(i + 1) == NULL, "should be");

    96     }

    97   }

    98 }

    99 #endif // !PRODUCT

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/shark/sharkStateScanner.cpp@d2ede61b7a12

src/share/vm/shark/sharkStateScanner.cpp