1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2016 SAP SE. 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_S390_VM_C2_GLOBALS_S390_HPP
  27 #define CPU_S390_VM_C2_GLOBALS_S390_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 // Sorted according to sparc.
  35 
  36 define_pd_global(bool, BackgroundCompilation,        true);
  37 define_pd_global(bool, CICompileOSR,                 true);
  38 define_pd_global(bool, InlineIntrinsics,             true);
  39 define_pd_global(bool, PreferInterpreterNativeStubs, false);
  40 define_pd_global(bool, ProfileTraps,                 true);
  41 define_pd_global(bool, UseOnStackReplacement,        true);
  42 define_pd_global(bool, ProfileInterpreter,           true);
  43 define_pd_global(bool, TieredCompilation,            trueInTiered);
  44 define_pd_global(intx, CompileThreshold,             10000);
  45 
  46 define_pd_global(intx, OnStackReplacePercentage,     140);
  47 define_pd_global(intx, ConditionalMoveLimit,         4);
  48 define_pd_global(intx, FLOATPRESSURE,                15);
  49 define_pd_global(intx, FreqInlineSize,               175);
  50 // 10 prevents spill-split-recycle sanity check in JVM2008.xml.transform.
  51 define_pd_global(intx, INTPRESSURE,                  10); // Medium size register set, 6 special purpose regs, 3 SOE regs.
  52 define_pd_global(intx, InteriorEntryAlignment,       2);
  53 define_pd_global(size_t, NewSizeThreadIncrease,      ScaleForWordSize(4*K));
  54 define_pd_global(intx, RegisterCostAreaRatio,        12000);
  55 define_pd_global(bool, UseTLAB,                      true);
  56 define_pd_global(bool, ResizeTLAB,                   true);
  57 define_pd_global(intx, LoopUnrollLimit,              60);
  58 define_pd_global(intx, LoopPercentProfileLimit,      10);
  59 define_pd_global(intx, PostLoopMultiversioning,      false);
  60 define_pd_global(intx, MinJumpTableSize,             18);
  61 
  62 // Peephole and CISC spilling both break the graph, and so makes the
  63 // scheduler sick.
  64 define_pd_global(bool, OptoPeephole,                 false);
  65 define_pd_global(bool, UseCISCSpill,                 true);
  66 define_pd_global(bool, OptoBundling,                 false);
  67 define_pd_global(bool, OptoScheduling,               false);
  68 define_pd_global(bool, OptoRegScheduling,            false);
  69 define_pd_global(bool, SuperWordLoopUnrollAnalysis,  false);
  70 // On s390x, we can clear the array with a single instruction,
  71 // so don't idealize it.
  72 define_pd_global(bool, IdealizeClearArrayNode,       false);
  73 
  74 // InitialCodeCacheSize derived from specjbb2000 run.
  75 define_pd_global(uintx, InitialCodeCacheSize,        2048*K); // Integral multiple of CodeCacheExpansionSize
  76 define_pd_global(uintx, ReservedCodeCacheSize,       48*M);
  77 define_pd_global(uintx, NonProfiledCodeHeapSize,     21*M);
  78 define_pd_global(uintx, ProfiledCodeHeapSize,        22*M);
  79 define_pd_global(uintx, NonNMethodCodeHeapSize,      5*M);
  80 define_pd_global(uintx, CodeCacheExpansionSize,      64*K);
  81 
  82 // Ergonomics related flags
  83 define_pd_global(uint64_t, MaxRAM,                   128ULL*G);
  84 define_pd_global(uintx, CodeCacheMinBlockLength,     4);
  85 define_pd_global(uintx, CodeCacheMinimumUseSpace,    400*K);
  86 
  87 define_pd_global(bool,  TrapBasedRangeChecks,        false); // Not needed on z/Architecture.
  88 
  89 // Heap related flags
  90 define_pd_global(size_t, MetaspaceSize,              ScaleForWordSize(16*M));
  91 
  92 // Ergonomics related flags
  93 define_pd_global(bool, NeverActAsServerClassMachine, false);
  94 
  95 #endif // CPU_S390_VM_C2_GLOBALS_S390_HPP