1 /*
   2  * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2014, Red Hat Inc. 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
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef CPU_AARCH64_VM_C2_GLOBALS_AARCH64_HPP
  27 #define CPU_AARCH64_VM_C2_GLOBALS_AARCH64_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).  Alpha-sorted.
  34 
  35 define_pd_global(bool, BackgroundCompilation,        true);
  36 define_pd_global(bool, UseTLAB,                      true);
  37 define_pd_global(bool, ResizeTLAB,                   true);
  38 define_pd_global(bool, CICompileOSR,                 true);
  39 define_pd_global(bool, InlineIntrinsics,             true);
  40 define_pd_global(bool, PreferInterpreterNativeStubs, false);
  41 define_pd_global(bool, ProfileTraps,                 true);
  42 define_pd_global(bool, UseOnStackReplacement,        true);
  43 define_pd_global(bool, ProfileInterpreter,           true);
  44 define_pd_global(bool, TieredCompilation,            trueInTiered);
  45 define_pd_global(intx, CompileThreshold,             10000);
  46 define_pd_global(intx, BackEdgeThreshold,            100000);
  47 
  48 define_pd_global(intx, OnStackReplacePercentage,     140);
  49 define_pd_global(intx, ConditionalMoveLimit,         3);
  50 define_pd_global(intx, FLOATPRESSURE,                64);
  51 define_pd_global(intx, FreqInlineSize,               325);
  52 define_pd_global(intx, MinJumpTableSize,             10);
  53 define_pd_global(intx, INTPRESSURE,                  25);
  54 define_pd_global(intx, InteriorEntryAlignment,       16);
  55 define_pd_global(intx, NewSizeThreadIncrease, ScaleForWordSize(4*K));
  56 define_pd_global(intx, LoopUnrollLimit,              60);
  57 define_pd_global(intx, LoopPercentProfileLimit,      10);
  58 define_pd_global(intx, PostLoopMultiversioning,      false);
  59 // InitialCodeCacheSize derived from specjbb2000 run.
  60 define_pd_global(intx, InitialCodeCacheSize,         2496*K); // Integral multiple of CodeCacheExpansionSize
  61 define_pd_global(intx, CodeCacheExpansionSize,       64*K);
  62 
  63 // Ergonomics related flags
  64 define_pd_global(uint64_t,MaxRAM,                    128ULL*G);
  65 define_pd_global(intx, RegisterCostAreaRatio,        16000);
  66 
  67 // Peephole and CISC spilling both break the graph, and so makes the
  68 // scheduler sick.
  69 define_pd_global(bool, OptoPeephole,                 false);
  70 define_pd_global(bool, UseCISCSpill,                 true);
  71 define_pd_global(bool, OptoScheduling,               false);
  72 define_pd_global(bool, OptoBundling,                 false);
  73 define_pd_global(bool, OptoRegScheduling,            false);
  74 define_pd_global(bool, SuperWordLoopUnrollAnalysis,  true);
  75 define_pd_global(bool, IdealizeClearArrayNode,       true);
  76 
  77 define_pd_global(intx, ReservedCodeCacheSize,        48*M);
  78 define_pd_global(intx, NonProfiledCodeHeapSize,      21*M);
  79 define_pd_global(intx, ProfiledCodeHeapSize,         22*M);
  80 define_pd_global(intx, NonNMethodCodeHeapSize,       5*M );
  81 define_pd_global(uintx, CodeCacheMinBlockLength,     4);
  82 define_pd_global(uintx, CodeCacheMinimumUseSpace,    400*K);
  83 
  84 // Heap related flags
  85 define_pd_global(uintx,MetaspaceSize,    ScaleForWordSize(16*M));
  86 
  87 // Ergonomics related flags
  88 define_pd_global(bool, NeverActAsServerClassMachine, false);
  89 
  90 define_pd_global(bool,  TrapBasedRangeChecks,        false); // Not needed.
  91 
  92 #endif // CPU_AARCH64_VM_C2_GLOBALS_AARCH64_HPP