| /* |
| * Copyright (c) 1997, 2023, 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_COMPILER_COMPILER_GLOBALS_HPP |
| #define SHARE_COMPILER_COMPILER_GLOBALS_HPP |
| |
| #include "compiler/compiler_globals_pd.hpp" |
| #include "runtime/globals_shared.hpp" |
| #ifdef COMPILER1 |
| #include "c1/c1_globals.hpp" |
| #endif // COMPILER1 |
| #ifdef COMPILER2 |
| #include "opto/c2_globals.hpp" |
| #endif // COMPILER2 |
| #if INCLUDE_JVMCI |
| #include "jvmci/jvmci_globals.hpp" |
| #endif |
| |
| // TODO -- currently, even if all JIT compilers are disabled, the following flags |
| // are still available in HotSpot. This should eventually be fixed ... |
| |
| #define COMPILER_FLAGS(develop, \ |
| develop_pd, \ |
| product, \ |
| product_pd, \ |
| notproduct, \ |
| range, \ |
| constraint) \ |
| \ |
| /* compiler interface */ \ |
| \ |
| product(bool, CIPrintCompilerName, false, DIAGNOSTIC, \ |
| "when CIPrint is active, print the name of the active compiler") \ |
| \ |
| product(bool, CIPrintCompileQueue, false, DIAGNOSTIC, \ |
| "display the contents of the compile queue whenever a " \ |
| "compilation is enqueued") \ |
| \ |
| develop(bool, CIPrintRequests, false, \ |
| "display every request for compilation") \ |
| \ |
| product(bool, CITime, false, \ |
| "collect timing information for compilation") \ |
| \ |
| develop(bool, CITimeVerbose, false, \ |
| "be more verbose in compilation timings") \ |
| \ |
| develop(bool, CITimeEach, false, \ |
| "display timing information after each successful compilation") \ |
| \ |
| develop(bool, CICountOSR, false, \ |
| "use a separate counter when assigning ids to osr compilations") \ |
| \ |
| develop(bool, CICountNative, false, \ |
| "use a separate counter when assigning ids to native " \ |
| "compilations") \ |
| \ |
| develop(bool, CICompileNatives, true, \ |
| "compile native methods if supported by the compiler") \ |
| \ |
| develop_pd(bool, CICompileOSR, \ |
| "compile on stack replacement methods if supported by the " \ |
| "compiler") \ |
| \ |
| develop(bool, CIPrintMethodCodes, false, \ |
| "print method bytecodes of the compiled code") \ |
| \ |
| develop(bool, CIPrintTypeFlow, false, \ |
| "print the results of ciTypeFlow analysis") \ |
| \ |
| develop(bool, CITraceTypeFlow, false, \ |
| "detailed per-bytecode tracing of ciTypeFlow analysis") \ |
| \ |
| product(bool, CICompilerCountPerCPU, false, \ |
| "1 compiler thread for log(N CPUs)") \ |
| \ |
| notproduct(intx, CICrashAt, -1, \ |
| "id of compilation to trigger assert in compiler thread for " \ |
| "the purpose of testing, e.g. generation of replay data") \ |
| \ |
| notproduct(bool, CIObjectFactoryVerify, false, \ |
| "enable potentially expensive verification in ciObjectFactory") \ |
| \ |
| develop(intx, CIStart, 0, \ |
| "The id of the first compilation to permit") \ |
| \ |
| develop(intx, CIStop, max_jint, \ |
| "The id of the last compilation to permit") \ |
| \ |
| develop(intx, CIStartOSR, 0, \ |
| "The id of the first osr compilation to permit " \ |
| "(CICountOSR must be on)") \ |
| \ |
| develop(intx, CIStopOSR, max_jint, \ |
| "The id of the last osr compilation to permit " \ |
| "(CICountOSR must be on)") \ |
| \ |
| develop(intx, CIBreakAtOSR, -1, \ |
| "The id of osr compilation to break at") \ |
| \ |
| develop(intx, CIBreakAt, -1, \ |
| "The id of compilation to break at") \ |
| \ |
| /* recompilation */ \ |
| \ |
| product(double, CompileThresholdScaling, 1.0, \ |
| "Factor to control when first compilation happens " \ |
| "(both with and without tiered compilation): " \ |
| "values greater than 1.0 delay counter overflow, " \ |
| "values between 0 and 1.0 rush counter overflow, " \ |
| "value of 1.0 leaves compilation thresholds unchanged " \ |
| "value of 0.0 is equivalent to -Xint. " \ |
| "" \ |
| "Flag can be set as per-method option. " \ |
| "If a value is specified for a method, compilation thresholds " \ |
| "for that method are scaled by both the value of the global flag "\ |
| "and the value of the per-method flag.") \ |
| range(0.0, DBL_MAX) \ |
| \ |
| product(intx, Tier0InvokeNotifyFreqLog, 7, \ |
| "Interpreter (tier 0) invocation notification frequency") \ |
| range(0, 30) \ |
| \ |
| product(intx, Tier2InvokeNotifyFreqLog, 11, \ |
| "C1 without MDO (tier 2) invocation notification frequency") \ |
| range(0, 30) \ |
| \ |
| product(intx, Tier3InvokeNotifyFreqLog, 10, \ |
| "C1 with MDO profiling (tier 3) invocation notification " \ |
| "frequency") \ |
| range(0, 30) \ |
| \ |
| product(intx, Tier23InlineeNotifyFreqLog, 20, \ |
| "Inlinee invocation (tiers 2 and 3) notification frequency") \ |
| range(0, 30) \ |
| \ |
| product(intx, Tier0BackedgeNotifyFreqLog, 10, \ |
| "Interpreter (tier 0) invocation notification frequency") \ |
| range(0, 30) \ |
| \ |
| product(intx, Tier2BackedgeNotifyFreqLog, 14, \ |
| "C1 without MDO (tier 2) invocation notification frequency") \ |
| range(0, 30) \ |
| \ |
| product(intx, Tier3BackedgeNotifyFreqLog, 13, \ |
| "C1 with MDO profiling (tier 3) invocation notification " \ |
| "frequency") \ |
| range(0, 30) \ |
| \ |
| product(intx, Tier2CompileThreshold, 0, \ |
| "threshold at which tier 2 compilation is invoked") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, Tier2BackEdgeThreshold, 0, \ |
| "Back edge threshold at which tier 2 compilation is invoked") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, Tier3InvocationThreshold, 200, \ |
| "Compile if number of method invocations crosses this " \ |
| "threshold") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, Tier3MinInvocationThreshold, 100, \ |
| "Minimum invocation to compile at tier 3") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, Tier3CompileThreshold, 2000, \ |
| "Threshold at which tier 3 compilation is invoked (invocation " \ |
| "minimum must be satisfied)") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, Tier3BackEdgeThreshold, 60000, \ |
| "Back edge threshold at which tier 3 OSR compilation is invoked") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, Tier4InvocationThreshold, 5000, \ |
| "Compile if number of method invocations crosses this " \ |
| "threshold") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, Tier4MinInvocationThreshold, 600, \ |
| "Minimum invocation to compile at tier 4") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, Tier4CompileThreshold, 15000, \ |
| "Threshold at which tier 4 compilation is invoked (invocation " \ |
| "minimum must be satisfied)") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, Tier4BackEdgeThreshold, 40000, \ |
| "Back edge threshold at which tier 4 OSR compilation is invoked") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, Tier0Delay, 20, DIAGNOSTIC, \ |
| "If C2 queue size grows over this amount per compiler thread " \ |
| "do not start profiling in the interpreter") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, TieredOldPercentage, 1000, DIAGNOSTIC, \ |
| "Percentage over tier 3 thresholds after which a method is " \ |
| "considered old (turns off parts of prioritization based on " \ |
| "compile queue length)") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, Tier3DelayOn, 5, \ |
| "If C2 queue size grows over this amount per compiler thread " \ |
| "stop compiling at tier 3 and start compiling at tier 2") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, Tier3DelayOff, 2, \ |
| "If C2 queue size is less than this amount per compiler thread " \ |
| "allow methods compiled at tier 2 transition to tier 3") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, Tier3LoadFeedback, 5, \ |
| "Tier 3 thresholds will increase twofold when C1 queue size " \ |
| "reaches this amount per compiler thread") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, Tier4LoadFeedback, 3, \ |
| "Tier 4 thresholds will increase twofold when C2 queue size " \ |
| "reaches this amount per compiler thread") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, TieredCompileTaskTimeout, 50, \ |
| "Kill compile task if method was not used within " \ |
| "given timeout in milliseconds") \ |
| range(0, max_intx) \ |
| \ |
| product(intx, TieredStopAtLevel, 4, \ |
| "Stop at given compilation level") \ |
| range(0, 4) \ |
| \ |
| product(intx, Tier0ProfilingStartPercentage, 200, \ |
| "Start profiling in interpreter if the counters exceed the " \ |
| "specified percentage of tier 3 thresholds") \ |
| range(0, max_jint) \ |
| \ |
| product(uintx, IncreaseFirstTierCompileThresholdAt, 50, \ |
| "Increase the compile threshold for C1 compilation if the code " \ |
| "cache is filled by the specified percentage") \ |
| range(0, 99) \ |
| \ |
| product(intx, TieredRateUpdateMinTime, 1, \ |
| "Minimum rate sampling interval (in milliseconds)") \ |
| range(0, max_intx) \ |
| \ |
| product(intx, TieredRateUpdateMaxTime, 25, \ |
| "Maximum rate sampling interval (in milliseconds)") \ |
| range(0, max_intx) \ |
| \ |
| product(ccstr, CompilationMode, "default", \ |
| "Compilation modes: " \ |
| "default: normal tiered compilation; " \ |
| "quick-only: C1-only mode; " \ |
| "high-only: C2/JVMCI-only mode; " \ |
| "high-only-quick-internal: C2/JVMCI-only mode, " \ |
| "with JVMCI compiler compiled with C1.") \ |
| \ |
| product(bool, PrintTieredEvents, false, \ |
| "Print tiered events notifications") \ |
| \ |
| product_pd(intx, OnStackReplacePercentage, \ |
| "NON_TIERED number of method invocations/branches (expressed as " \ |
| "% of CompileThreshold) before (re-)compiling OSR code") \ |
| constraint(OnStackReplacePercentageConstraintFunc, AfterErgo) \ |
| \ |
| product(intx, InterpreterProfilePercentage, 33, \ |
| "NON_TIERED number of method invocations/branches (expressed as " \ |
| "% of CompileThreshold) before profiling in the interpreter") \ |
| range(0, 100) \ |
| \ |
| /* compiler directives */ \ |
| \ |
| product(ccstrlist, CompileOnly, "", \ |
| "List of methods (pkg/class.name) to restrict compilation to") \ |
| \ |
| product(ccstr, CompileCommandFile, nullptr, \ |
| "Read compiler commands from this file [.hotspot_compiler]") \ |
| \ |
| product(ccstr, CompilerDirectivesFile, nullptr, DIAGNOSTIC, \ |
| "Read compiler directives from this file") \ |
| \ |
| product(ccstrlist, CompileCommand, "", \ |
| "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \ |
| \ |
| product(bool, ReplayCompiles, false, DIAGNOSTIC, \ |
| "Enable replay of compilations from ReplayDataFile") \ |
| \ |
| product(bool, ReplayReduce, false, EXPERIMENTAL, \ |
| "Enable features to facilitate replay file reduction") \ |
| \ |
| product(ccstr, ReplayDataFile, nullptr, \ |
| "File containing compilation replay information" \ |
| "[default: ./replay_pid%p.log] (%p replaced with pid)") \ |
| \ |
| product(ccstr, InlineDataFile, nullptr, \ |
| "File containing inlining replay information" \ |
| "[default: ./inline_pid%p.log] (%p replaced with pid)") \ |
| \ |
| product(intx, ReplaySuppressInitializers, 2, DIAGNOSTIC, \ |
| "Control handling of class initialization during replay: " \ |
| "0 - don't do anything special; " \ |
| "1 - treat all class initializers as empty; " \ |
| "2 - treat class initializers for application classes as empty; " \ |
| "3 - allow all class initializers to run during bootstrap but " \ |
| " pretend they are empty after starting replay") \ |
| range(0, 3) \ |
| \ |
| product(bool, ReplayIgnoreInitErrors, false, DIAGNOSTIC, \ |
| "Ignore exceptions thrown during initialization for replay") \ |
| \ |
| product(bool, DumpReplayDataOnError, true, \ |
| "Record replay data for crashing compiler threads") \ |
| \ |
| product(bool, CompilerDirectivesIgnoreCompileCommands, false, DIAGNOSTIC, \ |
| "Disable backwards compatibility for compile commands.") \ |
| \ |
| product(bool, CompilerDirectivesPrint, false, DIAGNOSTIC, \ |
| "Print compiler directives on installation.") \ |
| \ |
| product(int, CompilerDirectivesLimit, 50, DIAGNOSTIC, \ |
| "Limit on number of compiler directives.") \ |
| \ |
| /* Bytecode escape analysis estimation. */ \ |
| \ |
| product(bool, EstimateArgEscape, true, \ |
| "Analyze bytecodes to estimate escape state of arguments") \ |
| \ |
| product(intx, BCEATraceLevel, 0, \ |
| "How much tracing to do of bytecode escape analysis estimates " \ |
| "(0-3)") \ |
| range(0, 3) \ |
| \ |
| product(intx, MaxBCEAEstimateLevel, 5, \ |
| "Maximum number of nested calls that are analyzed by BC EA") \ |
| range(0, max_jint) \ |
| \ |
| product(intx, MaxBCEAEstimateSize, 150, \ |
| "Maximum bytecode size of a method to be analyzed by BC EA") \ |
| range(0, max_jint) \ |
| \ |
| /* misc compiler flags */ \ |
| \ |
| product(bool, AbortVMOnCompilationFailure, false, DIAGNOSTIC, \ |
| "Abort VM when method had failed to compile.") \ |
| \ |
| develop(intx, OSROnlyBCI, -1, \ |
| "OSR only at this bci. Negative values mean exclude that bci") \ |
| \ |
| develop(intx, DesiredMethodLimit, 8000, \ |
| "The desired maximum method size (in bytecodes) after inlining") \ |
| \ |
| product(bool, DontCompileHugeMethods, true, \ |
| "Do not compile methods > HugeMethodLimit") \ |
| \ |
| develop(intx, HugeMethodLimit, 8000, \ |
| "Don't compile methods larger than this if " \ |
| "+DontCompileHugeMethods") \ |
| \ |
| |
| // end of COMPILER_FLAGS |
| |
| DECLARE_FLAGS(COMPILER_FLAGS) |
| |
| #endif // SHARE_COMPILER_COMPILER_GLOBALS_HPP |
