1 /* 2 * Copyright (c) 2008, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef CPU_ARM_C2_GLOBALS_ARM_HPP 26 #define CPU_ARM_C2_GLOBALS_ARM_HPP 27 28 #include "utilities/globalDefinitions.hpp" 29 #include "utilities/macros.hpp" 30 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, false); 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, false); 43 define_pd_global(intx, CompileThreshold, 10000); 44 45 define_pd_global(intx, OnStackReplacePercentage, 140); 46 define_pd_global(intx, ConditionalMoveLimit, 4); 47 // C2 gets to use all the float/double registers 48 define_pd_global(intx, FLOATPRESSURE, 30); 49 define_pd_global(intx, FreqInlineSize, 175); 50 define_pd_global(intx, INTPRESSURE, 12); 51 define_pd_global(intx, InteriorEntryAlignment, 16); // = CodeEntryAlignment 52 define_pd_global(size_t, NewSizeThreadIncrease, ScaleForWordSize(4*K)); 53 // The default setting 16/16 seems to work best. 54 // (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.) 55 //define_pd_global(intx, OptoLoopAlignment, 16); // = 4*wordSize 56 define_pd_global(intx, RegisterCostAreaRatio, 16000); 57 define_pd_global(bool, UseTLAB, true); 58 define_pd_global(bool, ResizeTLAB, true); 59 define_pd_global(intx, LoopUnrollLimit, 60); // Design center runs on 1.3.1 60 define_pd_global(intx, LoopPercentProfileLimit, 10); 61 define_pd_global(intx, MinJumpTableSize, 16); 62 63 // Peephole and CISC spilling both break the graph, and so makes the 64 // scheduler sick. 65 define_pd_global(bool, OptoPeephole, false); 66 define_pd_global(bool, UseCISCSpill, false); 67 define_pd_global(bool, OptoBundling, false); 68 define_pd_global(bool, OptoScheduling, true); 69 define_pd_global(bool, OptoRegScheduling, false); 70 define_pd_global(bool, SuperWordLoopUnrollAnalysis, false); 71 define_pd_global(bool, IdealizeClearArrayNode, true); 72 73 #ifdef _LP64 74 // We need to make sure that all generated code is within 75 // 2 gigs of the libjvm.so runtime routines so we can use 76 // the faster "call" instruction rather than the expensive 77 // sequence of instructions to load a 64 bit pointer. 78 // 79 // InitialCodeCacheSize derived from specjbb2000 run. 80 define_pd_global(size_t, InitialCodeCacheSize, 2048*K); // Integral multiple of CodeCacheExpansionSize 81 define_pd_global(size_t, ReservedCodeCacheSize, 48*M); 82 define_pd_global(size_t, NonProfiledCodeHeapSize, 21*M); 83 define_pd_global(size_t, ProfiledCodeHeapSize, 22*M); 84 define_pd_global(size_t, NonNMethodCodeHeapSize, 5*M ); 85 define_pd_global(size_t, CodeCacheExpansionSize, 64*K); 86 87 // Ergonomics related flags 88 define_pd_global(uint64_t, MaxRAM, 128ULL*G); 89 #else 90 // InitialCodeCacheSize derived from specjbb2000 run. 91 define_pd_global(size_t, InitialCodeCacheSize, 1536*K); // Integral multiple of CodeCacheExpansionSize 92 define_pd_global(size_t, ReservedCodeCacheSize, 32*M); 93 define_pd_global(size_t, NonProfiledCodeHeapSize, 13*M); 94 define_pd_global(size_t, ProfiledCodeHeapSize, 14*M); 95 define_pd_global(size_t, NonNMethodCodeHeapSize, 5*M ); 96 define_pd_global(size_t, CodeCacheExpansionSize, 32*K); 97 // Ergonomics related flags 98 define_pd_global(uint64_t, MaxRAM, 4ULL*G); 99 #endif 100 define_pd_global(uintx, CodeCacheMinBlockLength, 6); 101 define_pd_global(size_t, CodeCacheMinimumUseSpace, 400*K); 102 103 define_pd_global(bool, TrapBasedRangeChecks, false); // Not needed 104 105 // Heap related flags 106 define_pd_global(size_t, MetaspaceSize, ScaleForWordSize(16*M)); 107 108 // Ergonomics related flags 109 define_pd_global(bool, NeverActAsServerClassMachine, false); 110 111 #endif // CPU_ARM_C2_GLOBALS_ARM_HPP