1 /*
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 3  * Copyright (c) 2020, 2022, Huawei Technologies Co., Ltd. All rights reserved.
 4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 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).
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16  * You should have received a copy of the GNU General Public License version
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18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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25 
26 #ifndef CPU_RISCV_C2_GLOBALS_RISCV_HPP
27 #define CPU_RISCV_C2_GLOBALS_RISCV_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, 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,            COMPILER1_PRESENT(true) NOT_COMPILER1(false));
43 define_pd_global(intx, CompileThreshold,             10000);
44 
45 define_pd_global(intx, OnStackReplacePercentage,     140);
46 define_pd_global(intx, ConditionalMoveLimit,         0);
47 define_pd_global(intx, FreqInlineSize,               325);
48 define_pd_global(intx, MinJumpTableSize,             10);
49 define_pd_global(intx, InteriorEntryAlignment,       16);
50 define_pd_global(intx, NewSizeThreadIncrease, ScaleForWordSize(4*K));
51 define_pd_global(intx, LoopUnrollLimit,              60);
52 define_pd_global(intx, LoopPercentProfileLimit,      10);
53 // InitialCodeCacheSize derived from specjbb2000 run.
54 define_pd_global(intx, InitialCodeCacheSize,         2496*K); // Integral multiple of CodeCacheExpansionSize
55 define_pd_global(intx, CodeCacheExpansionSize,       64*K);
56 
57 // Ergonomics related flags
58 define_pd_global(uint64_t,MaxRAM,                    128ULL*G);
59 define_pd_global(intx, RegisterCostAreaRatio,        16000);
60 
61 // Peephole and CISC spilling both break the graph, and so makes the
62 // scheduler sick.
63 define_pd_global(bool, OptoPeephole,                 false);
64 define_pd_global(bool, UseCISCSpill,                 false);
65 define_pd_global(bool, OptoScheduling,               true);
66 define_pd_global(bool, OptoBundling,                 false);
67 define_pd_global(bool, OptoRegScheduling,            false);
68 define_pd_global(bool, SuperWordLoopUnrollAnalysis,  true);
69 define_pd_global(bool, IdealizeClearArrayNode,       true);
70 
71 define_pd_global(intx, ReservedCodeCacheSize,        48*M);
72 define_pd_global(intx, NonProfiledCodeHeapSize,      21*M);
73 define_pd_global(intx, ProfiledCodeHeapSize,         22*M);
74 define_pd_global(intx, NonNMethodCodeHeapSize,       5*M );
75 define_pd_global(uintx, CodeCacheMinBlockLength,     6);
76 define_pd_global(uintx, CodeCacheMinimumUseSpace,    400*K);
77 
78 // Ergonomics related flags
79 define_pd_global(bool, NeverActAsServerClassMachine, false);
80 
81 define_pd_global(bool, TrapBasedRangeChecks,         false); // Not needed.
82 
83 #endif // CPU_RISCV_C2_GLOBALS_RISCV_HPP