| /* | |
| * Copyright (c) 2000, 2024, Oracle and/or its affiliates. All rights reserved. | |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
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| * This code is free software; you can redistribute it and/or modify it | |
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| * published by the Free Software Foundation. | |
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| * 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 | |
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| */ | |
| #ifndef SHARE_JVMCI_JVMCI_GLOBALS_HPP | |
| #define SHARE_JVMCI_JVMCI_GLOBALS_HPP | |
| #include "runtime/globals_shared.hpp" | |
| #include "utilities/vmEnums.hpp" | |
| class fileStream; | |
| #define LIBJVMCI_ERR_FILE "hs_err_pid%p_libjvmci.log" | |
| #define DEFAULT_COMPILER_IDLE_DELAY 1000 | |
| // | |
| // 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. | |
| // | |
| #define JVMCI_FLAGS(develop, \ | |
| develop_pd, \ | |
| product, \ | |
| product_pd, \ | |
| range, \ | |
| constraint) \ | |
| \ | |
| product(bool, EnableJVMCI, false, EXPERIMENTAL, \ | |
| "Enable JVMCI support in the VM. " \ | |
| "Defaults to true if UseJVMCICompiler is true or " \ | |
| "--add-modules=jdk.internal.vm.ci was specified. " \ | |
| "The behavior of --add-modules=jdk.internal.vm.ci is triggered " \ | |
| "if any of the following is true: " \ | |
| "1. -XX:+EnableJVMCI is set to true on the command line. " \ | |
| "2. -XX:+EnableJVMCI is set to true by jdk/internal/vm/options " \ | |
| " in the java.base module. " \ | |
| "3. EnableJVMCI is defaulted to true by UseJVMCICompiler and " \ | |
| " libjvmci is not enabled") \ | |
| \ | |
| product(bool, UseGraalJIT, false, EXPERIMENTAL, \ | |
| "Select the Graal JVMCI compiler. This is an alias for: " \ | |
| " -XX:+EnableJVMCIProduct " \ | |
| " -Djvmci.Compiler=graal ") \ | |
| \ | |
| product(bool, EnableJVMCIProduct, false, 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(bool, UseJVMCICompiler, false, EXPERIMENTAL, \ | |
| "Use JVMCI as the default compiler. Defaults to true if " \ | |
| "EnableJVMCIProduct is true.") \ | |
| \ | |
| product(uint, JVMCIThreadsPerNativeLibraryRuntime, 1, EXPERIMENTAL, \ | |
| "Max number of threads per JVMCI native runtime. " \ | |
| "Specify 0 to force use of a single JVMCI native runtime. " \ | |
| "Specify 1 to force a single JVMCI native runtime per thread. ") \ | |
| range(0, max_jint) \ | |
| \ | |
| product(uint, JVMCICompilerIdleDelay, DEFAULT_COMPILER_IDLE_DELAY, EXPERIMENTAL, \ | |
| "Number of milliseconds a JVMCI compiler queue should wait for " \ | |
| "a compilation task before being considered idle. When a JVMCI " \ | |
| "compiler queue becomes idle, it is detached from its JVMCIRuntime. "\ | |
| "Once the last thread is detached from a JVMCIRuntime, all " \ | |
| "resources associated with the runtime are reclaimed. To use a " \ | |
| "new runtime for every JVMCI compilation, set this value to 0 " \ | |
| "and set JVMCIThreadsPerNativeLibraryRuntime to 1.") \ | |
| range(0, max_jint) \ | |
| \ | |
| product(bool, JVMCIPrintProperties, false, EXPERIMENTAL, \ | |
| "Prints properties used by the JVMCI compiler and exits") \ | |
| \ | |
| product(bool, BootstrapJVMCI, false, 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(bool, EagerJVMCI, false, EXPERIMENTAL, \ | |
| "Force eager JVMCI initialization. Defaults to true if " \ | |
| "UseJVMCICompiler is true.") \ | |
| \ | |
| product(bool, PrintBootstrap, true, EXPERIMENTAL, \ | |
| "Print JVMCI bootstrap progress and summary") \ | |
| \ | |
| product(intx, JVMCIThreads, 1, EXPERIMENTAL, \ | |
| "Force number of JVMCI compiler threads to use. Ignored if " \ | |
| "UseJVMCICompiler is false.") \ | |
| range(1, max_jint) \ | |
| \ | |
| product(intx, JVMCIHostThreads, 1, EXPERIMENTAL, \ | |
| "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") \ | |
| range(0, max_jint)) \ | |
| \ | |
| NOT_COMPILER2(product(bool, ReduceInitialCardMarks, true, \ | |
| "Defer write barriers of young objects")) \ | |
| \ | |
| product(intx, JVMCIEventLogLevel, 1, EXPERIMENTAL, \ | |
| "Event log level for JVMCI") \ | |
| range(0, 4) \ | |
| \ | |
| product(intx, JVMCITraceLevel, 0, EXPERIMENTAL, \ | |
| "Trace level for JVMCI") \ | |
| range(0, 4) \ | |
| \ | |
| product(intx, JVMCICounterSize, 0, EXPERIMENTAL, \ | |
| "Reserved size for benchmark counters") \ | |
| range(0, 1000000) \ | |
| \ | |
| product(bool, JVMCICountersExcludeCompiler, true, EXPERIMENTAL, \ | |
| "Exclude JVMCI compiler threads from benchmark counters") \ | |
| \ | |
| product(intx, JVMCINMethodSizeLimit, (80*K)*wordSize, EXPERIMENTAL, \ | |
| "Maximum size of a compiled method.") \ | |
| range(0, max_jint) \ | |
| \ | |
| product(ccstr, JVMCILibPath, nullptr, EXPERIMENTAL, \ | |
| "LD path for loading the JVMCI shared library") \ | |
| \ | |
| product(ccstr, JVMCILibDumpJNIConfig, nullptr, EXPERIMENTAL, \ | |
| "Dumps to the given file a description of the classes, fields " \ | |
| "and methods the JVMCI shared library must provide") \ | |
| \ | |
| product(bool, UseJVMCINativeLibrary, false, EXPERIMENTAL, \ | |
| "Execute JVMCI Java code from a shared library (\"libjvmci\") " \ | |
| "instead of loading it from class files and executing it " \ | |
| "on the HotSpot heap. Defaults to true if UseJVMCICompiler or " \ | |
| "EnableJVMCI is true and a JVMCI native library is available.") \ | |
| \ | |
| product(double, JVMCINativeLibraryThreadFraction, 0.66, EXPERIMENTAL, \ | |
| "The fraction of compiler threads used by libjvmci. " \ | |
| "The remaining compiler threads are used by C1. " \ | |
| "Reducing this value could reduce the max RSS but " \ | |
| "also increase the warmup time.") \ | |
| range(0.0, 1.0) \ | |
| \ | |
| product(ccstr, JVMCINativeLibraryErrorFile, nullptr, EXPERIMENTAL, \ | |
| "If an error in the JVMCI native library occurs, save the " \ | |
| "error data to this file" \ | |
| "[default: ./" LIBJVMCI_ERR_FILE "] (%p replaced with pid)") \ | |
| \ | |
| product(bool, LibJVMCICompilerThreadHidden, true, EXPERIMENTAL, \ | |
| "If true then native JVMCI compiler threads are hidden from " \ | |
| "JVMTI and FlightRecorder. This must be set to false if you " \ | |
| "wish to use a Java debugger against JVMCI threads.") \ | |
| \ | |
| NOT_COMPILER2(product(bool, UseMultiplyToLenIntrinsic, false, DIAGNOSTIC, \ | |
| "Enables intrinsification of BigInteger.multiplyToLen()")) \ | |
| \ | |
| NOT_COMPILER2(product(bool, UseSquareToLenIntrinsic, false, DIAGNOSTIC, \ | |
| "Enables intrinsification of BigInteger.squareToLen()")) \ | |
| \ | |
| NOT_COMPILER2(product(bool, UseMulAddIntrinsic, false, DIAGNOSTIC, \ | |
| "Enables intrinsification of BigInteger.mulAdd()")) \ | |
| \ | |
| NOT_COMPILER2(product(bool, UseMontgomeryMultiplyIntrinsic, false, DIAGNOSTIC, \ | |
| "Enables intrinsification of BigInteger.montgomeryMultiply()")) \ | |
| \ | |
| NOT_COMPILER2(product(bool, UseMontgomerySquareIntrinsic, false, DIAGNOSTIC, \ | |
| "Enables intrinsification of BigInteger.montgomerySquare()")) \ | |
| \ | |
| NOT_COMPILER2(product(bool, EnableVectorSupport, false, EXPERIMENTAL, \ | |
| "Enables VectorSupport intrinsics")) \ | |
| \ | |
| NOT_COMPILER2(product(bool, EnableVectorReboxing, false, EXPERIMENTAL, \ | |
| "Enables reboxing of vectors")) \ | |
| \ | |
| NOT_COMPILER2(product(bool, EnableVectorAggressiveReboxing, false, EXPERIMENTAL, \ | |
| "Enables aggressive reboxing of vectors")) \ | |
| \ | |
| product(bool, UseVectorStubs, false, EXPERIMENTAL, \ | |
| "Use stubs for vector transcendental operations") \ | |
| // end of JVMCI_FLAGS | |
| DECLARE_FLAGS(JVMCI_FLAGS) | |
| // 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(JVMFlagOrigin origin, bool use_graal_jit); | |
| // Returns true iff the GC fully supports JVMCI. | |
| static bool gc_supports_jvmci(); | |
| // Check and turn off EnableJVMCI if selected GC does not support JVMCI. | |
| static void check_jvmci_supported_gc(); | |
| static fileStream* get_jni_config_file() { return _jni_config_file; } | |
| }; | |
| #endif // SHARE_JVMCI_JVMCI_GLOBALS_HPP |