Mercurial > hg > graal-compiler
annotate src/cpu/sparc/vm/globals_sparc.hpp @ 1868:3dc12ef8735e
6989297: Integrate additional portability improvements
Reviewed-by: vladidan, dholmes
| author | bobv |
|---|---|
| date | Thu, 07 Oct 2010 15:12:57 -0400 |
| parents | c18cbe5936b8 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2000, 2009, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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| 5 * This code is free software; you can redistribute it and/or modify it | |
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| 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 | |
| 25 // Sets the default values for platform dependent flags used by the runtime system. | |
| 26 // (see globals.hpp) | |
| 27 | |
| 28 // For sparc we do not do call backs when a thread is in the interpreter, because the | |
| 29 // interpreter dispatch needs at least two instructions - first to load the dispatch address | |
| 30 // in a register, and second to jmp. The swapping of the dispatch table may occur _after_ | |
| 31 // the load of the dispatch address and hence the jmp would still go to the location | |
| 32 // according to the prior table. So, we let the thread continue and let it block by itself. | |
| 33 define_pd_global(bool, DontYieldALot, true); // yield no more than 100 times per second | |
| 34 define_pd_global(bool, ConvertSleepToYield, false); // do not convert sleep(0) to yield. Helps GUI | |
| 35 define_pd_global(bool, ShareVtableStubs, false); // improves performance markedly for mtrt and compress | |
| 36 define_pd_global(bool, CountInterpCalls, false); // not implemented in the interpreter | |
| 37 define_pd_global(bool, NeedsDeoptSuspend, true); // register window machines need this | |
| 38 | |
| 39 define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks | |
| 40 define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast | |
| 41 | |
| 1064 | 42 define_pd_global(intx, CodeEntryAlignment, 32); |
| 1365 | 43 // The default setting 16/16 seems to work best. |
| 44 // (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.) | |
| 45 define_pd_global(intx, OptoLoopAlignment, 16); // = 4*wordSize | |
| 1064 | 46 define_pd_global(intx, InlineFrequencyCount, 50); // we can use more inlining on the SPARC |
| 47 define_pd_global(intx, InlineSmallCode, 1500); | |
| 0 | 48 #ifdef _LP64 |
| 49 // Stack slots are 2X larger in LP64 than in the 32 bit VM. | |
| 1064 | 50 define_pd_global(intx, ThreadStackSize, 1024); |
| 51 define_pd_global(intx, VMThreadStackSize, 1024); | |
| 0 | 52 #else |
| 1064 | 53 define_pd_global(intx, ThreadStackSize, 512); |
| 54 define_pd_global(intx, VMThreadStackSize, 512); | |
| 0 | 55 #endif |
| 56 | |
| 57 define_pd_global(intx, StackYellowPages, 2); | |
| 58 define_pd_global(intx, StackRedPages, 1); | |
| 59 define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+1)); | |
| 60 | |
| 1064 | 61 define_pd_global(intx, PreInflateSpin, 40); // Determined by running design center |
| 0 | 62 |
| 63 define_pd_global(bool, RewriteBytecodes, true); | |
| 64 define_pd_global(bool, RewriteFrequentPairs, true); | |
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66 define_pd_global(bool, UseMembar, false); |