408 lines
16 KiB
C++
408 lines
16 KiB
C++
/*
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* Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "code/relocInfo.hpp"
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#include "compiler/compilerDefinitions.hpp"
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#include "oops/metadata.hpp"
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#include "runtime/os.hpp"
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#include "interpreter/invocationCounter.hpp"
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#include "runtime/arguments.hpp"
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#include "runtime/commandLineFlagConstraintsCompiler.hpp"
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#include "runtime/commandLineFlagRangeList.hpp"
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#include "runtime/globals.hpp"
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#include "runtime/globals_extension.hpp"
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#include "utilities/defaultStream.hpp"
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Flag::Error AliasLevelConstraintFunc(intx value, bool verbose) {
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if ((value <= 1) && (Arguments::mode() == Arguments::_comp || Arguments::mode() == Arguments::_mixed)) {
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CommandLineError::print(verbose,
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"AliasLevel (" INTX_FORMAT ") is not "
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"compatible with -Xcomp or -Xmixed\n",
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value);
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return Flag::VIOLATES_CONSTRAINT;
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} else {
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return Flag::SUCCESS;
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}
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}
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/**
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* Validate the minimum number of compiler threads needed to run the
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* JVM. The following configurations are possible.
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*
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* 1) The JVM is build using an interpreter only. As a result, the minimum number of
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* compiler threads is 0.
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* 2) The JVM is build using the compiler(s) and tiered compilation is disabled. As
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* a result, either C1 or C2 is used, so the minimum number of compiler threads is 1.
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* 3) The JVM is build using the compiler(s) and tiered compilation is enabled. However,
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* the option "TieredStopAtLevel < CompLevel_full_optimization". As a result, only
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* C1 can be used, so the minimum number of compiler threads is 1.
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* 4) The JVM is build using the compilers and tiered compilation is enabled. The option
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* 'TieredStopAtLevel = CompLevel_full_optimization' (the default value). As a result,
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* the minimum number of compiler threads is 2.
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*/
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Flag::Error CICompilerCountConstraintFunc(intx value, bool verbose) {
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int min_number_of_compiler_threads = 0;
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#if !defined(COMPILER1) && !defined(COMPILER2) && !INCLUDE_JVMCI
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// case 1
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#else
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if (!TieredCompilation || (TieredStopAtLevel < CompLevel_full_optimization)) {
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min_number_of_compiler_threads = 1; // case 2 or case 3
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} else {
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min_number_of_compiler_threads = 2; // case 4 (tiered)
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}
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#endif
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// The default CICompilerCount's value is CI_COMPILER_COUNT.
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// With a client VM, -XX:+TieredCompilation causes TieredCompilation
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// to be true here (the option is validated later) and
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// min_number_of_compiler_threads to exceed CI_COMPILER_COUNT.
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min_number_of_compiler_threads = MIN2(min_number_of_compiler_threads, CI_COMPILER_COUNT);
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if (value < (intx)min_number_of_compiler_threads) {
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CommandLineError::print(verbose,
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"CICompilerCount (" INTX_FORMAT ") must be "
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"at least %d \n",
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value, min_number_of_compiler_threads);
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return Flag::VIOLATES_CONSTRAINT;
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} else {
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return Flag::SUCCESS;
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}
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}
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Flag::Error AllocatePrefetchDistanceConstraintFunc(intx value, bool verbose) {
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if (value < 0 || value > 512) {
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CommandLineError::print(verbose,
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"AllocatePrefetchDistance (" INTX_FORMAT ") must be "
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"between 0 and " INTX_FORMAT "\n",
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AllocatePrefetchDistance, 512);
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return Flag::VIOLATES_CONSTRAINT;
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}
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return Flag::SUCCESS;
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}
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Flag::Error AllocatePrefetchStepSizeConstraintFunc(intx value, bool verbose) {
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if (AllocatePrefetchStyle == 3) {
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if (value % wordSize != 0) {
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CommandLineError::print(verbose,
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"AllocatePrefetchStepSize (" INTX_FORMAT ") must be multiple of %d\n",
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value, wordSize);
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return Flag::VIOLATES_CONSTRAINT;
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}
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}
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return Flag::SUCCESS;
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}
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Flag::Error AllocatePrefetchInstrConstraintFunc(intx value, bool verbose) {
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intx max_value = max_intx;
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#if defined(SPARC)
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max_value = 1;
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#elif defined(X86)
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max_value = 3;
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#endif
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if (value < 0 || value > max_value) {
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CommandLineError::print(verbose,
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"AllocatePrefetchInstr (" INTX_FORMAT ") must be "
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"between 0 and " INTX_FORMAT "\n", value, max_value);
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return Flag::VIOLATES_CONSTRAINT;
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}
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return Flag::SUCCESS;
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}
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Flag::Error CompileThresholdConstraintFunc(intx value, bool verbose) {
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if (value < 0 || value > INT_MAX >> InvocationCounter::count_shift) {
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CommandLineError::print(verbose,
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"CompileThreshold (" INTX_FORMAT ") "
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"must be between 0 and %d\n",
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value,
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INT_MAX >> InvocationCounter::count_shift);
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return Flag::VIOLATES_CONSTRAINT;
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}
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return Flag::SUCCESS;
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}
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Flag::Error OnStackReplacePercentageConstraintFunc(intx value, bool verbose) {
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int backward_branch_limit;
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if (ProfileInterpreter) {
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if (OnStackReplacePercentage < InterpreterProfilePercentage) {
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CommandLineError::print(verbose,
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"OnStackReplacePercentage (" INTX_FORMAT ") must be "
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"larger than InterpreterProfilePercentage (" INTX_FORMAT ")\n",
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OnStackReplacePercentage, InterpreterProfilePercentage);
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return Flag::VIOLATES_CONSTRAINT;
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}
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backward_branch_limit = ((CompileThreshold * (OnStackReplacePercentage - InterpreterProfilePercentage)) / 100)
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<< InvocationCounter::count_shift;
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if (backward_branch_limit < 0) {
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CommandLineError::print(verbose,
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"CompileThreshold * (InterpreterProfilePercentage - OnStackReplacePercentage) / 100 = "
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INTX_FORMAT " "
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"must be between 0 and " INTX_FORMAT ", try changing "
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"CompileThreshold, InterpreterProfilePercentage, and/or OnStackReplacePercentage\n",
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(CompileThreshold * (OnStackReplacePercentage - InterpreterProfilePercentage)) / 100,
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INT_MAX >> InvocationCounter::count_shift);
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return Flag::VIOLATES_CONSTRAINT;
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}
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} else {
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if (OnStackReplacePercentage < 0 ) {
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CommandLineError::print(verbose,
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"OnStackReplacePercentage (" INTX_FORMAT ") must be "
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"non-negative\n", OnStackReplacePercentage);
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return Flag::VIOLATES_CONSTRAINT;
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}
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backward_branch_limit = ((CompileThreshold * OnStackReplacePercentage) / 100)
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<< InvocationCounter::count_shift;
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if (backward_branch_limit < 0) {
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CommandLineError::print(verbose,
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"CompileThreshold * OnStackReplacePercentage / 100 = " INTX_FORMAT " "
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"must be between 0 and " INTX_FORMAT ", try changing "
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"CompileThreshold and/or OnStackReplacePercentage\n",
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(CompileThreshold * OnStackReplacePercentage) / 100,
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INT_MAX >> InvocationCounter::count_shift);
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return Flag::VIOLATES_CONSTRAINT;
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}
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}
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return Flag::SUCCESS;
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}
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Flag::Error CodeCacheSegmentSizeConstraintFunc(uintx value, bool verbose) {
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if (CodeCacheSegmentSize < (uintx)CodeEntryAlignment) {
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CommandLineError::print(verbose,
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"CodeCacheSegmentSize (" UINTX_FORMAT ") must be "
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"larger than or equal to CodeEntryAlignment (" INTX_FORMAT ") "
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"to align entry points\n",
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CodeCacheSegmentSize, CodeEntryAlignment);
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return Flag::VIOLATES_CONSTRAINT;
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}
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if (CodeCacheSegmentSize < sizeof(jdouble)) {
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CommandLineError::print(verbose,
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"CodeCacheSegmentSize (" UINTX_FORMAT ") must be "
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"at least " SIZE_FORMAT " to align constants\n",
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CodeCacheSegmentSize, sizeof(jdouble));
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return Flag::VIOLATES_CONSTRAINT;
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}
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#ifdef COMPILER2
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if (CodeCacheSegmentSize < (uintx)OptoLoopAlignment) {
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CommandLineError::print(verbose,
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"CodeCacheSegmentSize (" UINTX_FORMAT ") must be "
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"larger than or equal to OptoLoopAlignment (" INTX_FORMAT ") "
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"to align inner loops\n",
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CodeCacheSegmentSize, OptoLoopAlignment);
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return Flag::VIOLATES_CONSTRAINT;
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}
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#endif
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return Flag::SUCCESS;
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}
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Flag::Error CompilerThreadPriorityConstraintFunc(intx value, bool verbose) {
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#ifdef SOLARIS
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if ((value < MinimumPriority || value > MaximumPriority) &&
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(value != -1) && (value != -FXCriticalPriority)) {
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CommandLineError::print(verbose,
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"CompileThreadPriority (" INTX_FORMAT ") must be "
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"between %d and %d inclusively or -1 (means no change) "
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"or %d (special value for critical thread class/priority)\n",
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value, MinimumPriority, MaximumPriority, -FXCriticalPriority);
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return Flag::VIOLATES_CONSTRAINT;
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}
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#endif
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return Flag::SUCCESS;
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}
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Flag::Error CodeEntryAlignmentConstraintFunc(intx value, bool verbose) {
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#ifdef SPARC
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if (CodeEntryAlignment % relocInfo::addr_unit() != 0) {
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CommandLineError::print(verbose,
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"CodeEntryAlignment (" INTX_FORMAT ") must be "
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"multiple of NOP size\n", CodeEntryAlignment);
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return Flag::VIOLATES_CONSTRAINT;
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}
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#endif
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if (!is_power_of_2(value)) {
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CommandLineError::print(verbose,
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"CodeEntryAlignment (" INTX_FORMAT ") must be "
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"a power of two\n", CodeEntryAlignment);
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return Flag::VIOLATES_CONSTRAINT;
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}
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if (CodeEntryAlignment < 16) {
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CommandLineError::print(verbose,
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"CodeEntryAlignment (" INTX_FORMAT ") must be "
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"greater than or equal to %d\n",
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CodeEntryAlignment, 16);
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return Flag::VIOLATES_CONSTRAINT;
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}
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return Flag::SUCCESS;
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}
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Flag::Error OptoLoopAlignmentConstraintFunc(intx value, bool verbose) {
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if (!is_power_of_2(value)) {
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CommandLineError::print(verbose,
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"OptoLoopAlignment (" INTX_FORMAT ") "
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"must be a power of two\n",
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value);
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return Flag::VIOLATES_CONSTRAINT;
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}
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// Relevant on ppc, s390, sparc. Will be optimized where
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// addr_unit() == 1.
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if (OptoLoopAlignment % relocInfo::addr_unit() != 0) {
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CommandLineError::print(verbose,
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"OptoLoopAlignment (" INTX_FORMAT ") must be "
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"multiple of NOP size (%d)\n",
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value, relocInfo::addr_unit());
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return Flag::VIOLATES_CONSTRAINT;
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}
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return Flag::SUCCESS;
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}
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Flag::Error ArraycopyDstPrefetchDistanceConstraintFunc(uintx value, bool verbose) {
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if (value >= 4032) {
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CommandLineError::print(verbose,
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"ArraycopyDstPrefetchDistance (" UINTX_FORMAT ") must be"
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"between 0 and 4031\n", value);
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return Flag::VIOLATES_CONSTRAINT;
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}
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return Flag::SUCCESS;
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}
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Flag::Error ArraycopySrcPrefetchDistanceConstraintFunc(uintx value, bool verbose) {
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if (value >= 4032) {
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CommandLineError::print(verbose,
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"ArraycopySrcPrefetchDistance (" UINTX_FORMAT ") must be"
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"between 0 and 4031\n", value);
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return Flag::VIOLATES_CONSTRAINT;
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}
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return Flag::SUCCESS;
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}
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Flag::Error TypeProfileLevelConstraintFunc(uintx value, bool verbose) {
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for (int i = 0; i < 3; i++) {
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if (value % 10 > 2) {
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CommandLineError::print(verbose,
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"Invalid value (" UINTX_FORMAT ") "
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"in TypeProfileLevel at position %d\n", value, i);
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return Flag::VIOLATES_CONSTRAINT;
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}
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value = value / 10;
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}
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return Flag::SUCCESS;
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}
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Flag::Error InitArrayShortSizeConstraintFunc(intx value, bool verbose) {
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if (value % BytesPerLong != 0) {
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return Flag::VIOLATES_CONSTRAINT;
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} else {
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return Flag::SUCCESS;
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}
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}
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#ifdef COMPILER2
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Flag::Error InteriorEntryAlignmentConstraintFunc(intx value, bool verbose) {
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if (InteriorEntryAlignment > CodeEntryAlignment) {
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CommandLineError::print(verbose,
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"InteriorEntryAlignment (" INTX_FORMAT ") must be "
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"less than or equal to CodeEntryAlignment (" INTX_FORMAT ")\n",
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InteriorEntryAlignment, CodeEntryAlignment);
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return Flag::VIOLATES_CONSTRAINT;
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}
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#ifdef SPARC
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if (InteriorEntryAlignment % relocInfo::addr_unit() != 0) {
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CommandLineError::print(verbose,
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"InteriorEntryAlignment (" INTX_FORMAT ") must be "
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"multiple of NOP size\n");
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return Flag::VIOLATES_CONSTRAINT;
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}
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#endif
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if (!is_power_of_2(value)) {
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CommandLineError::print(verbose,
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"InteriorEntryAlignment (" INTX_FORMAT ") must be "
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"a power of two\n", InteriorEntryAlignment);
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return Flag::VIOLATES_CONSTRAINT;
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}
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int minimum_alignment = 16;
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#if defined(SPARC) || (defined(X86) && !defined(AMD64))
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minimum_alignment = 4;
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#elif defined(S390)
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minimum_alignment = 2;
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#endif
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if (InteriorEntryAlignment < minimum_alignment) {
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CommandLineError::print(verbose,
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"InteriorEntryAlignment (" INTX_FORMAT ") must be "
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"greater than or equal to %d\n",
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InteriorEntryAlignment, minimum_alignment);
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return Flag::VIOLATES_CONSTRAINT;
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}
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return Flag::SUCCESS;
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}
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Flag::Error NodeLimitFudgeFactorConstraintFunc(intx value, bool verbose) {
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if (value < MaxNodeLimit * 2 / 100 || value > MaxNodeLimit * 40 / 100) {
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CommandLineError::print(verbose,
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"NodeLimitFudgeFactor must be between 2%% and 40%% "
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"of MaxNodeLimit (" INTX_FORMAT ")\n",
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MaxNodeLimit);
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return Flag::VIOLATES_CONSTRAINT;
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}
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return Flag::SUCCESS;
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}
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#endif // COMPILER2
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Flag::Error RTMTotalCountIncrRateConstraintFunc(int value, bool verbose) {
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#if INCLUDE_RTM_OPT
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if (UseRTMLocking && !is_power_of_2(RTMTotalCountIncrRate)) {
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CommandLineError::print(verbose,
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"RTMTotalCountIncrRate (" INTX_FORMAT
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") must be a power of 2, resetting it to 64\n",
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RTMTotalCountIncrRate);
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FLAG_SET_DEFAULT(RTMTotalCountIncrRate, 64);
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}
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#endif
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return Flag::SUCCESS;
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}
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