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annotate src/cpu/sparc/vm/globals_sparc.hpp @ 9790:6b515c453646

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CompilationTask: print exception of compilation also when we don't exit the VM for example, this is useful for CTW, in order to see on which methods the compiler bails out
author Bernhard Urban <bernhard.urban@jku.at>
date Wed, 22 May 2013 16:28:12 +0200
parents a5dd6e3ef9f3
children 12f651e29f6b
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1 /*
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2 * Copyright (c) 2000, 2012, 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 #ifndef CPU_SPARC_VM_GLOBALS_SPARC_HPP
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26 #define CPU_SPARC_VM_GLOBALS_SPARC_HPP
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27
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28 #include "utilities/globalDefinitions.hpp"
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29 #include "utilities/macros.hpp"
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30
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31 // Sets the default values for platform dependent flags used by the runtime system.
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32 // (see globals.hpp)
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33
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34 // For sparc we do not do call backs when a thread is in the interpreter, because the
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35 // interpreter dispatch needs at least two instructions - first to load the dispatch address
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36 // in a register, and second to jmp. The swapping of the dispatch table may occur _after_
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37 // the load of the dispatch address and hence the jmp would still go to the location
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38 // according to the prior table. So, we let the thread continue and let it block by itself.
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39 define_pd_global(bool, DontYieldALot, true); // yield no more than 100 times per second
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40 define_pd_global(bool, ConvertSleepToYield, false); // do not convert sleep(0) to yield. Helps GUI
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41 define_pd_global(bool, ShareVtableStubs, false); // improves performance markedly for mtrt and compress
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42 define_pd_global(bool, CountInterpCalls, false); // not implemented in the interpreter
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43 define_pd_global(bool, NeedsDeoptSuspend, true); // register window machines need this
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44
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45 define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks
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46 define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast
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47
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48 define_pd_global(intx, CodeEntryAlignment, 32);
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49 // The default setting 16/16 seems to work best.
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50 // (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.)
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51 define_pd_global(intx, OptoLoopAlignment, 16); // = 4*wordSize
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52 define_pd_global(intx, InlineFrequencyCount, 50); // we can use more inlining on the SPARC
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53 define_pd_global(intx, InlineSmallCode, 1500);
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54
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55 #ifdef _LP64
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56 // Stack slots are 2X larger in LP64 than in the 32 bit VM.
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57 define_pd_global(intx, ThreadStackSize, 1024);
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58 define_pd_global(intx, VMThreadStackSize, 1024);
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59 define_pd_global(intx, StackShadowPages, 10 DEBUG_ONLY(+1));
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60 #else
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61 define_pd_global(intx, ThreadStackSize, 512);
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62 define_pd_global(intx, VMThreadStackSize, 512);
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63 define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+1));
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64 #endif
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66 define_pd_global(intx, StackYellowPages, 2);
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67 define_pd_global(intx, StackRedPages, 1);
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68
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69 define_pd_global(intx, PreInflateSpin, 40); // Determined by running design center
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71 define_pd_global(bool, RewriteBytecodes, true);
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72 define_pd_global(bool, RewriteFrequentPairs, true);
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74 define_pd_global(bool, UseMembar, false);
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75
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76 // GC Ergo Flags
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77 define_pd_global(intx, CMSYoungGenPerWorker, 16*M); // default max size of CMS young gen, per GC worker thread
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79 #define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \
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80 \
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81 product(intx, UseVIS, 99, \
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82 "Highest supported VIS instructions set on Sparc") \
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83 \
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84 product(bool, UseCBCond, false, \
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85 "Use compare and branch instruction on SPARC") \
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86 \
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87 product(bool, UseBlockZeroing, false, \
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88 "Use special cpu instructions for block zeroing") \
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89 \
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90 product(intx, BlockZeroingLowLimit, 2048, \
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91 "Minimum size in bytes when block zeroing will be used") \
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92 \
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93 product(bool, UseBlockCopy, false, \
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94 "Use special cpu instructions for block copy") \
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95 \
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96 product(intx, BlockCopyLowLimit, 2048, \
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97 "Minimum size in bytes when block copy will be used") \
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98 \
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99 develop(bool, UseV8InstrsOnly, false, \
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100 "Use SPARC-V8 Compliant instruction subset") \
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101 \
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102 product(bool, UseNiagaraInstrs, false, \
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103 "Use Niagara-efficient instruction subset") \
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104 \
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105 develop(bool, UseCASForSwap, false, \
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106 "Do not use swap instructions, but only CAS (in a loop) on SPARC")\
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107 \
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108 product(uintx, ArraycopySrcPrefetchDistance, 0, \
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109 "Distance to prefetch source array in arracopy") \
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110 \
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111 product(uintx, ArraycopyDstPrefetchDistance, 0, \
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112 "Distance to prefetch destination array in arracopy") \
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113 \
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114 develop(intx, V8AtomicOperationUnderLockSpinCount, 50, \
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115 "Number of times to spin wait on a v8 atomic operation lock") \
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116
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117 #endif // CPU_SPARC_VM_GLOBALS_SPARC_HPP