Mercurial > hg > truffle
annotate src/share/vm/opto/opcodes.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 | 8c92982cbbc4 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
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2 * Copyright (c) 1997, 2012, 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_OPTO_OPCODES_HPP |
| 26 #define SHARE_VM_OPTO_OPCODES_HPP | |
| 27 | |
| 0 | 28 // Build a big enum of class names to give them dense integer indices |
| 29 #define macro(x) Op_##x, | |
| 30 enum Opcodes { | |
| 31 Op_Node = 0, | |
| 32 macro(Set) // Instruction selection match rule | |
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ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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33 macro(RegN) // Machine narrow oop register |
| 0 | 34 macro(RegI) // Machine integer register |
| 35 macro(RegP) // Machine pointer register | |
| 36 macro(RegF) // Machine float register | |
| 37 macro(RegD) // Machine double register | |
| 38 macro(RegL) // Machine long register | |
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6179
8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
1972
diff
changeset
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39 macro(VecS) // Machine vectors register |
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8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
1972
diff
changeset
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40 macro(VecD) // Machine vectord register |
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8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
1972
diff
changeset
|
41 macro(VecX) // Machine vectorx register |
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8c92982cbbc4
7119644: Increase superword's vector size up to 256 bits
kvn
parents:
1972
diff
changeset
|
42 macro(VecY) // Machine vectory register |
| 0 | 43 macro(RegFlags) // Machine flags register |
| 44 _last_machine_leaf, // Split between regular opcodes and machine | |
| 45 #include "classes.hpp" | |
| 46 _last_opcode | |
| 47 }; | |
| 48 #undef macro | |
| 49 | |
| 50 // Table of names, indexed by Opcode | |
| 51 extern const char *NodeClassNames[]; | |
| 1972 | 52 |
| 53 #endif // SHARE_VM_OPTO_OPCODES_HPP |