/* * 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; // // Declare all global flags used by the JVMCI compiler. Only flags that need // to be accessible to the JVMCI C++ code should be defined here. // #include "utilities/macros.hpp" #if INCLUDE_JVMCI #include "runtime/flags/jvmFlag.hpp" PRODUCT_FLAG(bool, EnableJVMCI, false, JVMFlag::EXPERIMENTAL, "Enable JVMCI"); PRODUCT_FLAG(bool, EnableJVMCIProduct, false, JVMFlag::EXPERIMENTAL, "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."); PRODUCT_FLAG(bool, UseJVMCICompiler, false, JVMFlag::EXPERIMENTAL, "Use JVMCI as the default compiler. Defaults to true if " "EnableJVMCIProduct is true."); PRODUCT_FLAG(bool, JVMCIPrintProperties, false, JVMFlag::EXPERIMENTAL, "Prints properties used by the JVMCI compiler and exits"); PRODUCT_FLAG(bool, BootstrapJVMCI, false, JVMFlag::EXPERIMENTAL, "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."); PRODUCT_FLAG(bool, EagerJVMCI, false, JVMFlag::EXPERIMENTAL, "Force eager JVMCI initialization"); PRODUCT_FLAG(bool, PrintBootstrap, true, JVMFlag::EXPERIMENTAL, "Print JVMCI bootstrap progress and summary"); PRODUCT_FLAG(intx, JVMCIThreads, 1, JVMFlag::EXPERIMENTAL | JVMFlag::RANGE, "Force number of JVMCI compiler threads to use. Ignored if " "UseJVMCICompiler is false."); FLAG_RANGE( JVMCIThreads, 1, max_jint); PRODUCT_FLAG(intx, JVMCIHostThreads, 1, JVMFlag::EXPERIMENTAL | JVMFlag::RANGE, "Force number of C1 compiler threads. Ignored if " "UseJVMCICompiler is false."); FLAG_RANGE( JVMCIHostThreads, 1, max_jint); NOT_COMPILER2(PRODUCT_FLAG(intx, MaxVectorSize, 64, JVMFlag::RANGE, "Max vector size in bytes, " "actual size could be less depending on elements type");) NOT_COMPILER2(PRODUCT_FLAG(bool, ReduceInitialCardMarks, true, JVMFlag::DEFAULT, "Defer write barriers of young objects");) PRODUCT_FLAG(intx, JVMCITraceLevel, 0, JVMFlag::EXPERIMENTAL | JVMFlag::RANGE, "Trace level for JVMCI: " "1 means emit a message for each CompilerToVM call," "levels greater than 1 provide progressively greater detail"); FLAG_RANGE( JVMCITraceLevel, 0, 6); PRODUCT_FLAG(intx, JVMCICounterSize, 0, JVMFlag::EXPERIMENTAL | JVMFlag::RANGE, "Reserved size for benchmark counters"); FLAG_RANGE( JVMCICounterSize, 0, 1000000); PRODUCT_FLAG(bool, JVMCICountersExcludeCompiler, true, JVMFlag::EXPERIMENTAL, "Exclude JVMCI compiler threads from benchmark counters"); DEVELOP_FLAG(bool, JVMCIUseFastLocking, true, JVMFlag::DEFAULT, "Use fast inlined locking code"); PRODUCT_FLAG(intx, JVMCINMethodSizeLimit, (80*K)*wordSize, JVMFlag::EXPERIMENTAL | JVMFlag::RANGE, "Maximum size of a compiled method."); FLAG_RANGE( JVMCINMethodSizeLimit, 0, max_jint); PRODUCT_FLAG(ccstr, JVMCILibPath, NULL, JVMFlag::EXPERIMENTAL, "LD path for loading the JVMCI shared library"); PRODUCT_FLAG(ccstr, JVMCILibDumpJNIConfig, NULL, JVMFlag::EXPERIMENTAL, "Dumps to the given file a description of the classes, fields " "and methods the JVMCI shared library must provide"); PRODUCT_FLAG(bool, UseJVMCINativeLibrary, false, JVMFlag::EXPERIMENTAL, "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(PRODUCT_FLAG(bool, UseMultiplyToLenIntrinsic, false, JVMFlag::DIAGNOSTIC, "Enables intrinsification of BigInteger.multiplyToLen()");) NOT_COMPILER2(PRODUCT_FLAG(bool, UseSquareToLenIntrinsic, false, JVMFlag::DIAGNOSTIC, "Enables intrinsification of BigInteger.squareToLen()");) NOT_COMPILER2(PRODUCT_FLAG(bool, UseMulAddIntrinsic, false, JVMFlag::DIAGNOSTIC, "Enables intrinsification of BigInteger.mulAdd()");) NOT_COMPILER2(PRODUCT_FLAG(bool, UseMontgomeryMultiplyIntrinsic, false, JVMFlag::DIAGNOSTIC, "Enables intrinsification of BigInteger.montgomeryMultiply()");) #endif // INCLUDE_JVMCI // 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