Mercurial > hg > graal-compiler
view src/cpu/sparc/vm/globals_sparc.hpp @ 13032:842b6ce4dfb4
Added tag jdk8-b115 for changeset 9ebaac78a8a0
author | cl |
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date | Thu, 07 Nov 2013 08:16:14 -0800 |
parents | d13d7aba8c12 |
children | de6a9e811145 41b780b43b74 |
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/* * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef CPU_SPARC_VM_GLOBALS_SPARC_HPP #define CPU_SPARC_VM_GLOBALS_SPARC_HPP #include "utilities/globalDefinitions.hpp" #include "utilities/macros.hpp" // Sets the default values for platform dependent flags used by the runtime system. // (see globals.hpp) // For sparc we do not do call backs when a thread is in the interpreter, because the // interpreter dispatch needs at least two instructions - first to load the dispatch address // in a register, and second to jmp. The swapping of the dispatch table may occur _after_ // the load of the dispatch address and hence the jmp would still go to the location // according to the prior table. So, we let the thread continue and let it block by itself. define_pd_global(bool, DontYieldALot, true); // yield no more than 100 times per second define_pd_global(bool, ConvertSleepToYield, false); // do not convert sleep(0) to yield. Helps GUI define_pd_global(bool, ShareVtableStubs, false); // improves performance markedly for mtrt and compress define_pd_global(bool, CountInterpCalls, false); // not implemented in the interpreter define_pd_global(bool, NeedsDeoptSuspend, true); // register window machines need this define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast define_pd_global(intx, CodeEntryAlignment, 32); // The default setting 16/16 seems to work best. // (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.) define_pd_global(intx, OptoLoopAlignment, 16); // = 4*wordSize define_pd_global(intx, InlineFrequencyCount, 50); // we can use more inlining on the SPARC define_pd_global(intx, InlineSmallCode, 1500); #ifdef _LP64 // Stack slots are 2X larger in LP64 than in the 32 bit VM. define_pd_global(intx, ThreadStackSize, 1024); define_pd_global(intx, VMThreadStackSize, 1024); define_pd_global(intx, StackShadowPages, 10 DEBUG_ONLY(+1)); #else define_pd_global(intx, ThreadStackSize, 512); define_pd_global(intx, VMThreadStackSize, 512); define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+1)); #endif define_pd_global(intx, StackYellowPages, 2); define_pd_global(intx, StackRedPages, 1); define_pd_global(intx, PreInflateSpin, 40); // Determined by running design center define_pd_global(bool, RewriteBytecodes, true); define_pd_global(bool, RewriteFrequentPairs, true); define_pd_global(bool, UseMembar, false); // GC Ergo Flags define_pd_global(uintx, CMSYoungGenPerWorker, 16*M); // default max size of CMS young gen, per GC worker thread define_pd_global(uintx, TypeProfileLevel, 0); #define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \ \ product(intx, UseVIS, 99, \ "Highest supported VIS instructions set on Sparc") \ \ product(bool, UseCBCond, false, \ "Use compare and branch instruction on SPARC") \ \ product(bool, UseBlockZeroing, false, \ "Use special cpu instructions for block zeroing") \ \ product(intx, BlockZeroingLowLimit, 2048, \ "Minimum size in bytes when block zeroing will be used") \ \ product(bool, UseBlockCopy, false, \ "Use special cpu instructions for block copy") \ \ product(intx, BlockCopyLowLimit, 2048, \ "Minimum size in bytes when block copy will be used") \ \ develop(bool, UseV8InstrsOnly, false, \ "Use SPARC-V8 Compliant instruction subset") \ \ product(bool, UseNiagaraInstrs, false, \ "Use Niagara-efficient instruction subset") \ \ develop(bool, UseCASForSwap, false, \ "Do not use swap instructions, but only CAS (in a loop) on SPARC")\ \ product(uintx, ArraycopySrcPrefetchDistance, 0, \ "Distance to prefetch source array in arracopy") \ \ product(uintx, ArraycopyDstPrefetchDistance, 0, \ "Distance to prefetch destination array in arracopy") \ #endif // CPU_SPARC_VM_GLOBALS_SPARC_HPP