/* * Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_JVMCI_JVMCI_GLOBALS_HPP #define SHARE_JVMCI_JVMCI_GLOBALS_HPP #include "runtime/flags/jvmFlag.hpp" class fileStream; // // Defines all global flags used by the JVMCI compiler. Only flags that need // to be accessible to the JVMCI C++ code should be defined here. // #define JVMCI_FLAGS(develop, \ develop_pd, \ product, \ product_pd, \ diagnostic, \ diagnostic_pd, \ experimental, \ notproduct, \ range, \ constraint) \ \ experimental(bool, EnableJVMCI, false, \ "Enable JVMCI") \ \ experimental(bool, EnableJVMCIProduct, false, \ "Allow JVMCI to be used in product mode. This alters a subset of "\ "JVMCI flags to be non-experimental, defaults UseJVMCICompiler " \ "and EnableJVMCI to true and defaults UseJVMCINativeLibrary " \ "to true if a JVMCI native library is available.") \ \ experimental(bool, UseJVMCICompiler, false, \ "Use JVMCI as the default compiler. Defaults to true if " \ "EnableJVMCIProduct is true.") \ \ experimental(bool, JVMCIPrintProperties, false, \ "Prints properties used by the JVMCI compiler and exits") \ \ experimental(bool, BootstrapJVMCI, false, \ "Bootstrap JVMCI before running Java main method. This " \ "initializes the compile queue with a small set of methods " \ "and processes the queue until it is empty. Combining this with " \ "-XX:-TieredCompilation makes JVMCI compile more of itself.") \ \ experimental(bool, EagerJVMCI, false, \ "Force eager JVMCI initialization") \ \ experimental(bool, PrintBootstrap, true, \ "Print JVMCI bootstrap progress and summary") \ \ experimental(intx, JVMCIThreads, 1, \ "Force number of JVMCI compiler threads to use. Ignored if " \ "UseJVMCICompiler is false.") \ range(1, max_jint) \ \ experimental(intx, JVMCIHostThreads, 1, \ "Force number of C1 compiler threads. Ignored if " \ "UseJVMCICompiler is false.") \ range(1, max_jint) \ \ NOT_COMPILER2(product(intx, MaxVectorSize, 64, \ "Max vector size in bytes, " \ "actual size could be less depending on elements type")) \ \ NOT_COMPILER2(product(bool, ReduceInitialCardMarks, true, \ "Defer write barriers of young objects")) \ \ experimental(intx, JVMCITraceLevel, 0, \ "Trace level for JVMCI: " \ "1 means emit a message for each CompilerToVM call," \ "levels greater than 1 provide progressively greater detail") \ \ experimental(intx, JVMCICounterSize, 0, \ "Reserved size for benchmark counters") \ range(0, max_jint) \ \ experimental(bool, JVMCICountersExcludeCompiler, true, \ "Exclude JVMCI compiler threads from benchmark counters") \ \ develop(bool, JVMCIUseFastLocking, true, \ "Use fast inlined locking code") \ \ experimental(intx, JVMCINMethodSizeLimit, (80*K)*wordSize, \ "Maximum size of a compiled method.") \ \ experimental(intx, MethodProfileWidth, 0, \ "Number of methods to record in call profile") \ \ experimental(ccstr, JVMCILibPath, NULL, \ "LD path for loading the JVMCI shared library") \ \ experimental(ccstr, JVMCILibDumpJNIConfig, NULL, \ "Dumps to the given file a description of the classes, fields " \ "and methods the JVMCI shared library must provide") \ \ experimental(bool, UseJVMCINativeLibrary, false, \ "Execute JVMCI Java code from a shared library " \ "instead of loading it from class files and executing it " \ "on the HotSpot heap. Defaults to true if EnableJVMCIProduct is " \ "true and a JVMCI native library is available.") \ \ NOT_COMPILER2(diagnostic(bool, UseMultiplyToLenIntrinsic, false, \ "Enables intrinsification of BigInteger.multiplyToLen()")) \ \ NOT_COMPILER2(diagnostic(bool, UseSquareToLenIntrinsic, false, \ "Enables intrinsification of BigInteger.squareToLen()")) \ \ NOT_COMPILER2(diagnostic(bool, UseMulAddIntrinsic, false, \ "Enables intrinsification of BigInteger.mulAdd()")) \ \ NOT_COMPILER2(diagnostic(bool, UseMontgomeryMultiplyIntrinsic, false, \ "Enables intrinsification of BigInteger.montgomeryMultiply()")) \ \ NOT_COMPILER2(diagnostic(bool, UseMontgomerySquareIntrinsic, false, \ "Enables intrinsification of BigInteger.montgomerySquare()")) // The base name for the shared library containing the JVMCI based compiler #define JVMCI_SHARED_LIBRARY_NAME "jvmcicompiler" class JVMCIGlobals { private: static fileStream* _jni_config_file; public: // Returns true if jvmci flags are consistent. If not consistent, // an error message describing the inconsistency is printed before // returning false. static bool check_jvmci_flags_are_consistent(); // Convert JVMCI experimental flags to product static bool enable_jvmci_product_mode(JVMFlag::Flags); // Check and exit VM with error if selected GC is not supported by JVMCI. static void check_jvmci_supported_gc(); static fileStream* get_jni_config_file() { return _jni_config_file; } }; #endif // SHARE_JVMCI_JVMCI_GLOBALS_HPP