1 /* 2 * Copyright (c) 2000, 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 SHARE_JVMCI_JVMCI_GLOBALS_HPP 26 #define SHARE_JVMCI_JVMCI_GLOBALS_HPP 27 28 #include "runtime/globals.hpp" 29 30 // 31 // Defines all global flags used by the JVMCI compiler. Only flags that need 32 // to be accessible to the JVMCI C++ code should be defined here. 33 // 34 #define JVMCI_FLAGS(develop, \ 35 develop_pd, \ 36 product, \ 37 product_pd, \ 38 diagnostic, \ 39 diagnostic_pd, \ 40 experimental, \ 41 notproduct, \ 42 range, \ 43 constraint, \ 44 writeable) \ 45 \ 46 experimental(bool, EnableJVMCI, false, \ 47 "Enable JVMCI") \ 48 \ 49 experimental(bool, UseJVMCICompiler, false, \ 50 "Use JVMCI as the default compiler") \ 51 \ 52 experimental(bool, JVMCIPrintProperties, false, \ 53 "Prints properties used by the JVMCI compiler and exits") \ 54 \ 55 experimental(bool, BootstrapJVMCI, false, \ 56 "Bootstrap JVMCI before running Java main method") \ 57 \ 58 experimental(bool, EagerJVMCI, false, \ 59 "Force eager JVMCI initialization") \ 60 \ 61 experimental(bool, PrintBootstrap, true, \ 62 "Print JVMCI bootstrap progress and summary") \ 63 \ 64 experimental(intx, JVMCIThreads, 1, \ 65 "Force number of JVMCI compiler threads to use") \ 66 range(1, max_jint) \ 67 \ 68 experimental(intx, JVMCIHostThreads, 1, \ 69 "Force number of compiler threads for JVMCI host compiler") \ 70 range(1, max_jint) \ 71 \ 72 NOT_COMPILER2(product(intx, MaxVectorSize, 64, \ 73 "Max vector size in bytes, " \ 74 "actual size could be less depending on elements type")) \ 75 \ 76 NOT_COMPILER2(product(bool, ReduceInitialCardMarks, true, \ 77 "Defer write barriers of young objects")) \ 78 \ 79 experimental(intx, JVMCITraceLevel, 0, \ 80 "Trace level for JVMCI: " \ 81 "1 means emit a message for each CompilerToVM call," \ 82 "levels greater than 1 provide progressively greater detail") \ 83 \ 84 experimental(intx, JVMCICounterSize, 0, \ 85 "Reserved size for benchmark counters") \ 86 range(0, max_jint) \ 87 \ 88 experimental(bool, JVMCICountersExcludeCompiler, true, \ 89 "Exclude JVMCI compiler threads from benchmark counters") \ 90 \ 91 develop(bool, JVMCIUseFastLocking, true, \ 92 "Use fast inlined locking code") \ 93 \ 94 experimental(intx, JVMCINMethodSizeLimit, (80*K)*wordSize, \ 95 "Maximum size of a compiled method.") \ 96 \ 97 experimental(intx, MethodProfileWidth, 0, \ 98 "Number of methods to record in call profile") \ 99 \ 100 develop(bool, TraceUncollectedSpeculations, false, \ 101 "Print message when a failed speculation was not collected") \ 102 \ 103 NOT_COMPILER2(diagnostic(bool, UseMultiplyToLenIntrinsic, false, \ 104 "Enables intrinsification of BigInteger.multiplyToLen()")) \ 105 \ 106 NOT_COMPILER2(diagnostic(bool, UseSquareToLenIntrinsic, false, \ 107 "Enables intrinsification of BigInteger.squareToLen()")) \ 108 \ 109 NOT_COMPILER2(diagnostic(bool, UseMulAddIntrinsic, false, \ 110 "Enables intrinsification of BigInteger.mulAdd()")) \ 111 \ 112 NOT_COMPILER2(diagnostic(bool, UseMontgomeryMultiplyIntrinsic, false, \ 113 "Enables intrinsification of BigInteger.montgomeryMultiply()")) \ 114 \ 115 NOT_COMPILER2(diagnostic(bool, UseMontgomerySquareIntrinsic, false, \ 116 "Enables intrinsification of BigInteger.montgomerySquare()")) 117 118 119 // Read default values for JVMCI globals 120 121 JVMCI_FLAGS(DECLARE_DEVELOPER_FLAG, \ 122 DECLARE_PD_DEVELOPER_FLAG, \ 123 DECLARE_PRODUCT_FLAG, \ 124 DECLARE_PD_PRODUCT_FLAG, \ 125 DECLARE_DIAGNOSTIC_FLAG, \ 126 DECLARE_PD_DIAGNOSTIC_FLAG, \ 127 DECLARE_EXPERIMENTAL_FLAG, \ 128 DECLARE_NOTPRODUCT_FLAG, \ 129 IGNORE_RANGE, \ 130 IGNORE_CONSTRAINT, \ 131 IGNORE_WRITEABLE) 132 133 class JVMCIGlobals { 134 public: 135 // Return true if jvmci flags are consistent. If not consistent, 136 // an error message describing the inconsistency is printed before 137 // returning false. 138 static bool check_jvmci_flags_are_consistent(); 139 140 // Check and exit VM with error if selected GC is not supported by JVMCI. 141 static void check_jvmci_supported_gc(); 142 }; 143 #endif // SHARE_JVMCI_JVMCI_GLOBALS_HPP