Mercurial > hg > truffle
annotate src/share/vm/interpreter/templateInterpreterGenerator.hpp @ 9126:bc26f978b0ce
HotSpotResolvedObjectType: implement hasFinalizeSubclass() correctly
don't use the (wrong) cached value, but ask the runtime on each request.
Fixes regression on xml.* benchmarks @ specjvm2008. The problem was:
After the constructor of Object was deoptimized due to an assumption violation,
it was recompiled again after some time. However, on recompilation, the value
of hasFinalizeSubclass for the class was not updated and it was compiled again
with a, now wrong, assumption, which then triggers deoptimization again.
This was repeated until it hit the recompilation limit (defined by
PerMethodRecompilationCutoff), and therefore only executed by the interpreter
from now on, causing the performance regression.
| author | Bernhard Urban <bernhard.urban@jku.at> |
|---|---|
| date | Mon, 15 Apr 2013 19:54:58 +0200 |
| parents | 6b6cbd8b8914 |
| children | 096c224171c4 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 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. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_INTERPRETER_TEMPLATEINTERPRETERGENERATOR_HPP |
| 26 #define SHARE_VM_INTERPRETER_TEMPLATEINTERPRETERGENERATOR_HPP | |
| 27 | |
| 605 | 28 // This file contains the platform-independent parts |
| 0 | 29 // of the template interpreter generator. |
| 30 | |
| 31 #ifndef CC_INTERP | |
| 32 | |
| 33 class TemplateInterpreterGenerator: public AbstractInterpreterGenerator { | |
| 34 protected: | |
| 35 | |
| 36 // entry points for shared code sequence | |
| 37 address _unimplemented_bytecode; | |
| 38 address _illegal_bytecode_sequence; | |
| 39 | |
| 40 // shared code sequences | |
| 41 // Converter for native abi result to tosca result | |
| 42 address generate_result_handler_for(BasicType type); | |
| 43 address generate_slow_signature_handler(); | |
| 44 address generate_error_exit(const char* msg); | |
| 45 address generate_StackOverflowError_handler(); | |
| 46 address generate_exception_handler(const char* name, const char* message) { | |
| 47 return generate_exception_handler_common(name, message, false); | |
| 48 } | |
| 49 address generate_klass_exception_handler(const char* name) { | |
| 50 return generate_exception_handler_common(name, NULL, true); | |
| 51 } | |
| 52 address generate_exception_handler_common(const char* name, const char* message, bool pass_oop); | |
| 53 address generate_ClassCastException_handler(); | |
| 54 address generate_ArrayIndexOutOfBounds_handler(const char* name); | |
| 55 address generate_continuation_for(TosState state); | |
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56 address generate_return_entry_for(TosState state, int step); |
| 0 | 57 address generate_earlyret_entry_for(TosState state); |
| 58 address generate_safept_entry_for(TosState state, address runtime_entry); | |
| 59 void generate_throw_exception(); | |
| 60 | |
| 61 // entry point generator | |
| 62 // address generate_method_entry(AbstractInterpreter::MethodKind kind); | |
| 63 | |
| 64 // Instruction generation | |
| 65 void generate_and_dispatch (Template* t, TosState tos_out = ilgl); | |
| 66 void set_vtos_entry_points (Template* t, address& bep, address& cep, address& sep, address& aep, address& iep, address& lep, address& fep, address& dep, address& vep); | |
| 67 void set_short_entry_points(Template* t, address& bep, address& cep, address& sep, address& aep, address& iep, address& lep, address& fep, address& dep, address& vep); | |
| 68 void set_wide_entry_point (Template* t, address& wep); | |
| 69 | |
| 70 void set_entry_points(Bytecodes::Code code); | |
| 71 void set_unimplemented(int i); | |
| 72 void set_entry_points_for_all_bytes(); | |
| 73 void set_safepoints_for_all_bytes(); | |
| 74 | |
| 75 // Helpers for generate_and_dispatch | |
| 76 address generate_trace_code(TosState state) PRODUCT_RETURN0; | |
| 77 void count_bytecode() PRODUCT_RETURN; | |
| 78 void histogram_bytecode(Template* t) PRODUCT_RETURN; | |
| 79 void histogram_bytecode_pair(Template* t) PRODUCT_RETURN; | |
| 80 void trace_bytecode(Template* t) PRODUCT_RETURN; | |
| 81 void stop_interpreter_at() PRODUCT_RETURN; | |
| 82 | |
| 83 void generate_all(); | |
| 84 | |
| 85 public: | |
| 86 TemplateInterpreterGenerator(StubQueue* _code); | |
| 87 | |
| 1972 | 88 #ifdef TARGET_ARCH_x86 |
| 89 # include "templateInterpreterGenerator_x86.hpp" | |
| 90 #endif | |
| 91 #ifdef TARGET_ARCH_sparc | |
| 92 # include "templateInterpreterGenerator_sparc.hpp" | |
| 93 #endif | |
| 94 #ifdef TARGET_ARCH_zero | |
| 95 # include "templateInterpreterGenerator_zero.hpp" | |
| 96 #endif | |
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97 #ifdef TARGET_ARCH_arm |
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98 # include "templateInterpreterGenerator_arm.hpp" |
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99 #endif |
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100 #ifdef TARGET_ARCH_ppc |
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101 # include "templateInterpreterGenerator_ppc.hpp" |
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102 #endif |
| 1972 | 103 |
| 0 | 104 |
| 105 }; | |
| 106 | |
| 107 #endif // !CC_INTERP | |
| 1972 | 108 |
| 109 #endif // SHARE_VM_INTERPRETER_TEMPLATEINTERPRETERGENERATOR_HPP |