Fri, 25 Mar 2011 09:35:39 +0100
7029017: Additional architecture support for c2 compiler
Summary: Enables cross building of a c2 VM. Support masking of shift counts when the processor architecture mandates it.
Reviewed-by: kvn, never
duke@435 | 1 | /* |
ysr@2650 | 2 | * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef CPU_SPARC_VM_GLOBALS_SPARC_HPP |
stefank@2314 | 26 | #define CPU_SPARC_VM_GLOBALS_SPARC_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "utilities/globalDefinitions.hpp" |
stefank@2314 | 29 | #include "utilities/macros.hpp" |
stefank@2314 | 30 | |
duke@435 | 31 | // Sets the default values for platform dependent flags used by the runtime system. |
duke@435 | 32 | // (see globals.hpp) |
duke@435 | 33 | |
duke@435 | 34 | // For sparc we do not do call backs when a thread is in the interpreter, because the |
duke@435 | 35 | // interpreter dispatch needs at least two instructions - first to load the dispatch address |
duke@435 | 36 | // in a register, and second to jmp. The swapping of the dispatch table may occur _after_ |
duke@435 | 37 | // the load of the dispatch address and hence the jmp would still go to the location |
duke@435 | 38 | // according to the prior table. So, we let the thread continue and let it block by itself. |
duke@435 | 39 | define_pd_global(bool, DontYieldALot, true); // yield no more than 100 times per second |
duke@435 | 40 | define_pd_global(bool, ConvertSleepToYield, false); // do not convert sleep(0) to yield. Helps GUI |
duke@435 | 41 | define_pd_global(bool, ShareVtableStubs, false); // improves performance markedly for mtrt and compress |
duke@435 | 42 | define_pd_global(bool, CountInterpCalls, false); // not implemented in the interpreter |
duke@435 | 43 | define_pd_global(bool, NeedsDeoptSuspend, true); // register window machines need this |
duke@435 | 44 | |
duke@435 | 45 | define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks |
duke@435 | 46 | define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast |
duke@435 | 47 | |
phh@1499 | 48 | define_pd_global(intx, CodeEntryAlignment, 32); |
kvn@1800 | 49 | // The default setting 16/16 seems to work best. |
kvn@1800 | 50 | // (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.) |
kvn@1800 | 51 | define_pd_global(intx, OptoLoopAlignment, 16); // = 4*wordSize |
phh@1499 | 52 | define_pd_global(intx, InlineFrequencyCount, 50); // we can use more inlining on the SPARC |
phh@1499 | 53 | define_pd_global(intx, InlineSmallCode, 1500); |
ysr@2650 | 54 | |
duke@435 | 55 | #ifdef _LP64 |
duke@435 | 56 | // Stack slots are 2X larger in LP64 than in the 32 bit VM. |
phh@1499 | 57 | define_pd_global(intx, ThreadStackSize, 1024); |
phh@1499 | 58 | define_pd_global(intx, VMThreadStackSize, 1024); |
duke@435 | 59 | #else |
phh@1499 | 60 | define_pd_global(intx, ThreadStackSize, 512); |
phh@1499 | 61 | define_pd_global(intx, VMThreadStackSize, 512); |
duke@435 | 62 | #endif |
duke@435 | 63 | |
duke@435 | 64 | define_pd_global(intx, StackYellowPages, 2); |
duke@435 | 65 | define_pd_global(intx, StackRedPages, 1); |
duke@435 | 66 | define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+1)); |
duke@435 | 67 | |
phh@1499 | 68 | define_pd_global(intx, PreInflateSpin, 40); // Determined by running design center |
duke@435 | 69 | |
duke@435 | 70 | define_pd_global(bool, RewriteBytecodes, true); |
duke@435 | 71 | define_pd_global(bool, RewriteFrequentPairs, true); |
bobv@2223 | 72 | |
bobv@2223 | 73 | define_pd_global(bool, UseMembar, false); |
stefank@2314 | 74 | |
ysr@2650 | 75 | // GC Ergo Flags |
ysr@2650 | 76 | define_pd_global(intx, CMSYoungGenPerWorker, 16*M); // default max size of CMS young gen, per GC worker thread |
stefank@2314 | 77 | #endif // CPU_SPARC_VM_GLOBALS_SPARC_HPP |