Mercurial > hg > truffle
annotate src/share/vm/runtime/frame.inline.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> |
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date | Mon, 15 Apr 2013 19:54:58 +0200 |
parents | da91efe96a93 |
children | f2110083203d |
rev | line source |
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0 | 1 /* |
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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_RUNTIME_FRAME_INLINE_HPP |
26 #define SHARE_VM_RUNTIME_FRAME_INLINE_HPP | |
27 | |
28 #include "interpreter/bytecodeInterpreter.hpp" | |
29 #include "interpreter/bytecodeInterpreter.inline.hpp" | |
30 #include "interpreter/interpreter.hpp" | |
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31 #include "oops/method.hpp" |
1972 | 32 #include "runtime/frame.hpp" |
33 #include "runtime/signature.hpp" | |
34 #ifdef TARGET_ARCH_x86 | |
35 # include "jniTypes_x86.hpp" | |
36 #endif | |
37 #ifdef TARGET_ARCH_sparc | |
38 # include "jniTypes_sparc.hpp" | |
39 #endif | |
40 #ifdef TARGET_ARCH_zero | |
41 # include "jniTypes_zero.hpp" | |
42 #endif | |
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43 #ifdef TARGET_ARCH_arm |
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44 # include "jniTypes_arm.hpp" |
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45 #endif |
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46 #ifdef TARGET_ARCH_ppc |
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47 # include "jniTypes_ppc.hpp" |
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48 #endif |
1972 | 49 #ifdef ZERO |
50 #ifdef TARGET_ARCH_zero | |
51 # include "entryFrame_zero.hpp" | |
52 # include "fakeStubFrame_zero.hpp" | |
53 # include "interpreterFrame_zero.hpp" | |
54 # include "sharkFrame_zero.hpp" | |
55 #endif | |
56 #endif | |
57 | |
605 | 58 // This file holds platform-independent bodies of inline functions for frames. |
0 | 59 |
60 // Note: The bcx usually contains the bcp; however during GC it contains the bci | |
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61 // (changed by gc_prologue() and gc_epilogue()) to be Method* position |
0 | 62 // independent. These accessors make sure the correct value is returned |
63 // by testing the range of the bcx value. bcp's are guaranteed to be above | |
64 // max_method_code_size, since methods are always allocated in OldSpace and | |
65 // Eden is allocated before OldSpace. | |
66 // | |
67 // The bcp is accessed sometimes during GC for ArgumentDescriptors; than | |
68 // the correct translation has to be performed (was bug). | |
69 | |
70 inline bool frame::is_bci(intptr_t bcx) { | |
71 #ifdef _LP64 | |
72 return ((uintptr_t) bcx) <= ((uintptr_t) max_method_code_size) ; | |
73 #else | |
74 return 0 <= bcx && bcx <= max_method_code_size; | |
75 #endif | |
76 } | |
77 | |
78 inline bool frame::is_entry_frame() const { | |
79 return StubRoutines::returns_to_call_stub(pc()); | |
80 } | |
81 | |
82 inline bool frame::is_first_frame() const { | |
83 return is_entry_frame() && entry_frame_is_first(); | |
84 } | |
85 | |
86 // here are the platform-dependent bodies: | |
87 | |
1972 | 88 #ifdef TARGET_ARCH_x86 |
89 # include "frame_x86.inline.hpp" | |
90 #endif | |
91 #ifdef TARGET_ARCH_sparc | |
92 # include "frame_sparc.inline.hpp" | |
93 #endif | |
94 #ifdef TARGET_ARCH_zero | |
95 # include "frame_zero.inline.hpp" | |
96 #endif | |
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97 #ifdef TARGET_ARCH_arm |
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98 # include "frame_arm.inline.hpp" |
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99 #endif |
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100 #ifdef TARGET_ARCH_ppc |
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101 # include "frame_ppc.inline.hpp" |
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102 #endif |
1972 | 103 |
104 | |
105 #endif // SHARE_VM_RUNTIME_FRAME_INLINE_HPP |