1 /*
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   3  * Copyright (c) 2012, 2016 SAP SE. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
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  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).
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  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
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  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,            true);
  43 define_pd_global(intx, CompileThreshold,             10000);
  44 
  45 define_pd_global(intx, OnStackReplacePercentage,     140);
  46 define_pd_global(intx, ConditionalMoveLimit,         3);
  47 define_pd_global(intx, FLOATPRESSURE,                28);
  48 define_pd_global(intx, FreqInlineSize,               175);
  49 define_pd_global(intx, MinJumpTableSize,             10);
  50 define_pd_global(intx, INTPRESSURE,                  26);
  51 define_pd_global(intx, InteriorEntryAlignment,       16);
  52 define_pd_global(size_t, NewSizeThreadIncrease,      ScaleForWordSize(4*K));
  53 define_pd_global(intx, RegisterCostAreaRatio,        16000);
  54 define_pd_global(bool, UseTLAB,                      true);
  55 define_pd_global(bool, ResizeTLAB,                   true);
  56 define_pd_global(intx, LoopUnrollLimit,              60);
  57 define_pd_global(intx, LoopPercentProfileLimit,      10);
  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 define_pd_global(bool, OptoRegScheduling,            false);
  65 define_pd_global(bool, SuperWordLoopUnrollAnalysis,  false);
  66 // GL:
  67 // Detected a problem with unscaled compressed oops and
  68 // narrow_oop_use_complex_address() == false.
  69 // -Djava.io.tmpdir=./tmp -jar SPECjvm2008.jar -ikv -wt 3 -it 3
  70 //   -bt 1 --base compiler.sunflow
  71 // fails in Lower.visitIf->translate->tranlate->translate and
  72 // throws an unexpected NPE. A load and a store seem to be
  73 // reordered.  Java reads about:
  74 //   loc = x.f
  75 //   x.f = 0
  76 //   NullCheck loc
  77 // While assembler reads:
  78 //   x.f = 0
  79 //   loc = x.f
  80 //   NullCheck loc
  81 define_pd_global(bool, OptoScheduling,               false);
  82 define_pd_global(bool, IdealizeClearArrayNode,       true);
  83 
  84 define_pd_global(intx, InitialCodeCacheSize,         2048*K); // Integral multiple of CodeCacheExpansionSize
  85 define_pd_global(intx, ReservedCodeCacheSize,        256*M);
  86 define_pd_global(intx, NonProfiledCodeHeapSize,      125*M);
  87 define_pd_global(intx, ProfiledCodeHeapSize,         126*M);
  88 define_pd_global(intx, NonNMethodCodeHeapSize,       5*M  );
  89 define_pd_global(intx, CodeCacheExpansionSize,       64*K);
  90 
  91 // Ergonomics related flags
  92 define_pd_global(uint64_t, MaxRAM,                   4ULL*G);
  93 define_pd_global(uintx, CodeCacheMinBlockLength,     4);
  94 define_pd_global(uintx, CodeCacheMinimumUseSpace,    400*K);
  95 
  96 define_pd_global(bool,  TrapBasedRangeChecks,        true);
  97 
  98 // Heap related flags
  99 define_pd_global(size_t, MetaspaceSize,              ScaleForWordSize(16*M));
 100 
 101 // Ergonomics related flags
 102 define_pd_global(bool, NeverActAsServerClassMachine, false);
 103 
 104 #endif // CPU_PPC_VM_C2_GLOBALS_PPC_HPP