jdk8-mips64-public/hotspot: src/cpu/sparc/vm/globals

7003454: order constants in constant table by number of references in code
Reviewed-by: kvn, never, bdelsart

     1 /*

     2  * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.

     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  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #ifndef CPU_SPARC_VM_GLOBALS_SPARC_HPP

    26 #define CPU_SPARC_VM_GLOBALS_SPARC_HPP

    28 #include "utilities/globalDefinitions.hpp"

    29 #include "utilities/macros.hpp"

    31 // Sets the default values for platform dependent flags used by the runtime system.

    32 // (see globals.hpp)

    34 // For sparc we do not do call backs when a thread is in the interpreter, because the

    35 // interpreter dispatch needs at least two instructions - first to load the dispatch address

    36 // in a register, and second to jmp. The swapping of the dispatch table may occur _after_

    37 // the load of the dispatch address and hence the jmp would still go to the location

    38 // according to the prior table. So, we let the thread continue and let it block by itself.

    39 define_pd_global(bool, DontYieldALot,               true);  // yield no more than 100 times per second

    40 define_pd_global(bool, ConvertSleepToYield,         false); // do not convert sleep(0) to yield. Helps GUI

    41 define_pd_global(bool, ShareVtableStubs,            false); // improves performance markedly for mtrt and compress

    42 define_pd_global(bool, CountInterpCalls,            false); // not implemented in the interpreter

    43 define_pd_global(bool, NeedsDeoptSuspend,           true); // register window machines need this

    45 define_pd_global(bool, ImplicitNullChecks,          true);  // Generate code for implicit null checks

    46 define_pd_global(bool, UncommonNullCast,            true);  // Uncommon-trap NULLs past to check cast

    48 define_pd_global(intx, CodeEntryAlignment,    32);

    49 // The default setting 16/16 seems to work best.

    50 // (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.)

    51 define_pd_global(intx, OptoLoopAlignment,     16);  // = 4*wordSize

    52 define_pd_global(intx, InlineFrequencyCount,  50);  // we can use more inlining on the SPARC

    53 define_pd_global(intx, InlineSmallCode,       1500);

    55 #ifdef _LP64

    56 // Stack slots are 2X larger in LP64 than in the 32 bit VM.

    57 define_pd_global(intx, ThreadStackSize,       1024);

    58 define_pd_global(intx, VMThreadStackSize,     1024);

    59 #else

    60 define_pd_global(intx, ThreadStackSize,       512);

    61 define_pd_global(intx, VMThreadStackSize,     512);

    62 #endif

    64 define_pd_global(intx, StackYellowPages, 2);

    65 define_pd_global(intx, StackRedPages, 1);

    66 define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+1));

    68 define_pd_global(intx, PreInflateSpin,       40);  // Determined by running design center

    70 define_pd_global(bool, RewriteBytecodes,     true);

    71 define_pd_global(bool, RewriteFrequentPairs, true);

    73 define_pd_global(bool, UseMembar,            false);

    75 // GC Ergo Flags

    76 define_pd_global(intx, CMSYoungGenPerWorker, 16*M);  // default max size of CMS young gen, per GC worker thread

    77 #endif // CPU_SPARC_VM_GLOBALS_SPARC_HPP

src/cpu/sparc/vm/globals_sparc.hpp@6729bbc1fcd6