1 /*

     2  * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

     3  * Copyright 2012, 2013 SAP AG. All rights reserved.

     4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     5  *

     6  * This code is free software; you can redistribute it and/or modify it

     7  * under the terms of the GNU General Public License version 2 only, as

     8  * published by the Free Software Foundation.

     9  *

    10  * This code is distributed in the hope that it will be useful, but WITHOUT

    11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    13  * version 2 for more details (a copy is included in the LICENSE file that

    14  * accompanied this code).

    15  *

    16  * You should have received a copy of the GNU General Public License version

    17  * 2 along with this work; if not, write to the Free Software Foundation,

    18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    19  *

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

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

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    24  */

    25 

    26 #ifndef CPU_PPC_VM_C2_GLOBALS_PPC_HPP

    27 #define CPU_PPC_VM_C2_GLOBALS_PPC_HPP

    28 

    29 #include "utilities/globalDefinitions.hpp"

    30 #include "utilities/macros.hpp"

    31 

    32 // Sets the default values for platform dependent flags used by the server compiler.

    33 // (see c2_globals.hpp).

    34 

    35 define_pd_global(bool, BackgroundCompilation,        true);

    36 define_pd_global(bool, CICompileOSR,                 true);

    37 define_pd_global(bool, InlineIntrinsics,             true);

    38 define_pd_global(bool, PreferInterpreterNativeStubs, false);

    39 define_pd_global(bool, ProfileTraps,                 true);

    40 define_pd_global(bool, UseOnStackReplacement,        true);

    41 define_pd_global(bool, ProfileInterpreter,           true);

    42 define_pd_global(bool, TieredCompilation,            false);

    43 define_pd_global(intx, CompileThreshold,             10000);

    44 define_pd_global(intx, BackEdgeThreshold,            140000);

    45 

    46 define_pd_global(intx, OnStackReplacePercentage,     140);

    47 define_pd_global(intx, ConditionalMoveLimit,         3);

    48 define_pd_global(intx, FLOATPRESSURE,                28);

    49 define_pd_global(intx, FreqInlineSize,               175);

    50 define_pd_global(intx, MinJumpTableSize,             10);

    51 define_pd_global(intx, INTPRESSURE,                  25);

    52 define_pd_global(intx, InteriorEntryAlignment,       16);

    53 define_pd_global(intx, NewSizeThreadIncrease,        ScaleForWordSize(4*K));

    54 define_pd_global(intx, RegisterCostAreaRatio,        16000);

    55 define_pd_global(bool, UseTLAB,                      true);

    56 define_pd_global(bool, ResizeTLAB,                   true);

    57 define_pd_global(intx, LoopUnrollLimit,              60);

    58 

    59 // Peephole and CISC spilling both break the graph, and so make the

    60 // scheduler sick.

    61 define_pd_global(bool, OptoPeephole,                 false);

    62 define_pd_global(bool, UseCISCSpill,                 false);

    63 define_pd_global(bool, OptoBundling,                 false);

    64 // GL:

    65 // Detected a problem with unscaled compressed oops and

    66 // narrow_oop_use_complex_address() == false.

    67 // -Djava.io.tmpdir=./tmp -jar SPECjvm2008.jar -ikv -wt 3 -it 3

    68 //   -bt 1 --base compiler.sunflow

    69 // fails in Lower.visitIf->translate->tranlate->translate and

    70 // throws an unexpected NPE. A load and a store seem to be

    71 // reordered.  Java reads about:

    72 //   loc = x.f

    73 //   x.f = 0

    74 //   NullCheck loc

    75 // While assembler reads:

    76 //   x.f = 0

    77 //   loc = x.f

    78 //   NullCheck loc

    79 define_pd_global(bool, OptoScheduling,               false);

    80 

    81 define_pd_global(intx, InitialCodeCacheSize,         2048*K); // Integral multiple of CodeCacheExpansionSize

    82 define_pd_global(intx, ReservedCodeCacheSize,        256*M);

    83 define_pd_global(intx, CodeCacheExpansionSize,       64*K);

    84 

    85 // Ergonomics related flags

    86 define_pd_global(uint64_t,MaxRAM,                    4ULL*G);

    87 define_pd_global(uintx, CodeCacheMinBlockLength,     4);

    88 define_pd_global(uintx, CodeCacheMinimumUseSpace,    400*K);

    89 

    90 define_pd_global(bool,  TrapBasedRangeChecks,        false);

    91 

    92 // Heap related flags

    93 define_pd_global(uintx,MetaspaceSize,                ScaleForWordSize(16*M));

    94 

    95 // Ergonomics related flags

    96 define_pd_global(bool, NeverActAsServerClassMachine, false);

    97 

    98 #endif // CPU_PPC_VM_C2_GLOBALS_PPC_HPP