1 /* 2 * Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. 3 * Copyright (c) 2014, Red Hat Inc. All rights reserved. 4 * Copyright (c) 2015-2018, Azul Systems, Inc. All rights reserved. 5 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 6 * 7 * This code is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License version 2 only, as 9 * published by the Free Software Foundation. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 * 25 */ 26 27 #ifndef CPU_AARCH32_VM_C2_GLOBALS_AARCH32_HPP 28 #define CPU_AARCH32_VM_C2_GLOBALS_AARCH32_HPP 29 30 #include "utilities/globalDefinitions.hpp" 31 #include "utilities/macros.hpp" 32 33 // 34 // Sets the default values for platform dependent flags used by the server compiler. 35 // (see c2_globals.hpp). Alpha-sorted. 36 37 define_pd_global(bool, BackgroundCompilation, true); 38 define_pd_global(bool, CICompileOSR, true); 39 define_pd_global(bool, InlineIntrinsics, false); // TODO FIXME temporary, please enable 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, false); 45 define_pd_global(intx, CompileThreshold, 10000); 46 47 define_pd_global(intx, OnStackReplacePercentage, 140); 48 define_pd_global(intx, ConditionalMoveLimit, 4); 49 // C2 gets to use all the float/double registers 50 define_pd_global(intx, FLOATPRESSURE, 30); 51 define_pd_global(intx, FreqInlineSize, 175); 52 define_pd_global(intx, INTPRESSURE, 12); 53 define_pd_global(intx, InteriorEntryAlignment, 32); // = CodeEntryAlignment 54 define_pd_global(size_t, NewSizeThreadIncrease, ScaleForWordSize(4*K)); 55 // The default setting 16/16 seems to work best. 56 // (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.) 57 //define_pd_global(intx, OptoLoopAlignment, 16); // = 4*wordSize 58 define_pd_global(intx, RegisterCostAreaRatio, 16000); 59 define_pd_global(bool, UseTLAB, true); 60 define_pd_global(bool, ResizeTLAB, true); 61 define_pd_global(intx, LoopUnrollLimit, 60); 62 define_pd_global(intx, LoopPercentProfileLimit, 10); 63 define_pd_global(intx, MinJumpTableSize, 16); 64 65 // Peephole and CISC spilling both break the graph, and so makes the 66 // scheduler sick. 67 define_pd_global(bool, OptoPeephole, false); 68 define_pd_global(bool, UseCISCSpill, false); 69 define_pd_global(bool, OptoBundling, false); 70 define_pd_global(bool, OptoScheduling, true); 71 define_pd_global(bool, OptoRegScheduling, false); 72 define_pd_global(bool, SuperWordLoopUnrollAnalysis, false); 73 define_pd_global(bool, IdealizeClearArrayNode, true); 74 75 // InitialCodeCacheSize derived from specjbb2000 run. 76 define_pd_global(size_t, InitialCodeCacheSize, 1536*K); // Integral multiple of CodeCacheExpansionSize 77 define_pd_global(size_t, ReservedCodeCacheSize, 32*M); 78 define_pd_global(size_t, NonProfiledCodeHeapSize, 13*M); 79 define_pd_global(size_t, ProfiledCodeHeapSize, 14*M); 80 define_pd_global(size_t, NonNMethodCodeHeapSize, 5*M ); 81 define_pd_global(size_t, CodeCacheExpansionSize, 32*K); 82 // Ergonomics related flags 83 define_pd_global(uint64_t, MaxRAM, 4ULL*G); 84 define_pd_global(uintx, CodeCacheMinBlockLength, 4); 85 define_pd_global(size_t, CodeCacheMinimumUseSpace, 400*K); 86 87 define_pd_global(bool, TrapBasedRangeChecks, false); // Not needed 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_AARCH32_VM_C2_GLOBALS_AARCH32_HPP