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annotate src/share/vm/ci/ciMethodHandle.cpp @ 3905:c26de9aef2ed

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7071307: MethodHandle bimorphic inlining should consider the frequency Reviewed-by: twisti, roland, kvn, iveresov
author never
date Fri, 02 Sep 2011 20:58:21 -0700
parents ddd894528dbc
children e0658a9b3f87
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1 /*
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2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "ci/ciClassList.hpp"
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27 #include "ci/ciInstance.hpp"
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28 #include "ci/ciMethodData.hpp"
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29 #include "ci/ciMethodHandle.hpp"
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30 #include "ci/ciUtilities.hpp"
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31 #include "prims/methodHandleWalk.hpp"
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32 #include "prims/methodHandles.hpp"
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33
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34 // ciMethodHandle
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35
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36 // ------------------------------------------------------------------
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37 // ciMethodHandle::get_adapter
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38 //
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39 // Return an adapter for this MethodHandle.
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40 ciMethod* ciMethodHandle::get_adapter_impl(bool is_invokedynamic) {
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41 VM_ENTRY_MARK;
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42 Handle h(get_oop());
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43 methodHandle callee(_callee->get_methodOop());
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44 assert(callee->is_method_handle_invoke(), "");
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45 oop mt1 = callee->method_handle_type();
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46 oop mt2 = java_lang_invoke_MethodHandle::type(h());
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47 if (!java_lang_invoke_MethodType::equals(mt1, mt2)) {
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48 if (PrintMiscellaneous && (Verbose || WizardMode)) {
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49 tty->print_cr("ciMethodHandle::get_adapter: types not equal");
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50 mt1->print(); mt2->print();
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51 }
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52 return NULL;
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53 }
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54 // We catch all exceptions here that could happen in the method
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55 // handle compiler and stop the VM.
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56 MethodHandleCompiler mhc(h, callee->name(), callee->signature(), _profile.count(), is_invokedynamic, THREAD);
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57 if (!HAS_PENDING_EXCEPTION) {
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58 methodHandle m = mhc.compile(THREAD);
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59 if (!HAS_PENDING_EXCEPTION) {
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60 return CURRENT_ENV->get_object(m())->as_method();
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61 }
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62 }
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63 if (PrintMiscellaneous && (Verbose || WizardMode)) {
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64 tty->print("*** ciMethodHandle::get_adapter => ");
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65 PENDING_EXCEPTION->print();
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66 tty->print("*** get_adapter (%s): ", is_invokedynamic ? "indy" : "mh"); ((ciObject*)this)->print();
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67 }
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68 CLEAR_PENDING_EXCEPTION;
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69 return NULL;
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70 }
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71
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72 // ------------------------------------------------------------------
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73 // ciMethodHandle::get_adapter
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74 //
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75 // Return an adapter for this MethodHandle.
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76 ciMethod* ciMethodHandle::get_adapter(bool is_invokedynamic) {
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77 ciMethod* result = get_adapter_impl(is_invokedynamic);
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78 if (result) {
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79 // Fake up the MDO maturity.
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80 ciMethodData* mdo = result->method_data();
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81 if (mdo != NULL && _caller->method_data() != NULL && _caller->method_data()->is_mature()) {
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82 mdo->set_mature();
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83 }
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84 }
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85 return result;
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86 }
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87
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88
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89 #ifndef PRODUCT
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90 // ------------------------------------------------------------------
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91 // ciMethodHandle::print_chain_impl
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92 //
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93 // Implementation of the print method.
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94 void ciMethodHandle::print_chain_impl(outputStream* st) {
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95 ASSERT_IN_VM;
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96 MethodHandleChain::print(get_oop());
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97 }
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98
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99
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100 // ------------------------------------------------------------------
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101 // ciMethodHandle::print_chain
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102 //
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103 // Implementation of the print_chain method.
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104 void ciMethodHandle::print_chain(outputStream* st) {
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105 GUARDED_VM_ENTRY(print_chain_impl(st););
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106 }
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107 #endif