--- /dev/null 2017-01-22 10:16:57.869617664 -0800 +++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core/src/org/graalvm/compiler/core/target/Backend.java 2017-02-15 16:58:12.922586454 -0800 @@ -0,0 +1,234 @@ +/* + * Copyright (c) 2009, 2016, 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. + */ +package org.graalvm.compiler.core.target; + +import java.util.Set; + +import org.graalvm.compiler.asm.Assembler; +import org.graalvm.compiler.code.CompilationResult; +import org.graalvm.compiler.core.common.CompilationIdentifier; +import org.graalvm.compiler.core.common.LIRKind; +import org.graalvm.compiler.core.common.alloc.RegisterAllocationConfig; +import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor; +import org.graalvm.compiler.core.common.spi.ForeignCallsProvider; +import org.graalvm.compiler.debug.Debug; +import org.graalvm.compiler.debug.Debug.Scope; +import org.graalvm.compiler.lir.LIR; +import org.graalvm.compiler.lir.asm.CompilationResultBuilder; +import org.graalvm.compiler.lir.asm.CompilationResultBuilderFactory; +import org.graalvm.compiler.lir.framemap.FrameMap; +import org.graalvm.compiler.lir.framemap.FrameMapBuilder; +import org.graalvm.compiler.lir.gen.LIRGenerationResult; +import org.graalvm.compiler.lir.gen.LIRGeneratorTool; +import org.graalvm.compiler.nodes.StructuredGraph; +import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; +import org.graalvm.compiler.phases.tiers.SuitesProvider; +import org.graalvm.compiler.phases.tiers.TargetProvider; +import org.graalvm.compiler.phases.util.Providers; + +import jdk.vm.ci.code.BailoutException; +import jdk.vm.ci.code.CodeCacheProvider; +import jdk.vm.ci.code.CompilationRequest; +import jdk.vm.ci.code.CompiledCode; +import jdk.vm.ci.code.InstalledCode; +import jdk.vm.ci.code.Register; +import jdk.vm.ci.code.RegisterConfig; +import jdk.vm.ci.code.TargetDescription; +import jdk.vm.ci.code.ValueKindFactory; +import jdk.vm.ci.meta.ConstantReflectionProvider; +import jdk.vm.ci.meta.JavaKind; +import jdk.vm.ci.meta.MetaAccessProvider; +import jdk.vm.ci.meta.ResolvedJavaMethod; +import jdk.vm.ci.meta.SpeculationLog; + +/** + * Represents a compiler backend for Graal. + */ +public abstract class Backend implements TargetProvider, ValueKindFactory { + + private final Providers providers; + + public static final ForeignCallDescriptor ARITHMETIC_FREM = new ForeignCallDescriptor("arithmeticFrem", float.class, float.class, float.class); + public static final ForeignCallDescriptor ARITHMETIC_DREM = new ForeignCallDescriptor("arithmeticDrem", double.class, double.class, double.class); + + protected Backend(Providers providers) { + this.providers = providers; + } + + public Providers getProviders() { + return providers; + } + + public CodeCacheProvider getCodeCache() { + return providers.getCodeCache(); + } + + public MetaAccessProvider getMetaAccess() { + return providers.getMetaAccess(); + } + + public ConstantReflectionProvider getConstantReflection() { + return providers.getConstantReflection(); + } + + public ForeignCallsProvider getForeignCalls() { + return providers.getForeignCalls(); + } + + public abstract SuitesProvider getSuites(); + + @Override + public TargetDescription getTarget() { + return providers.getCodeCache().getTarget(); + } + + @Override + public LIRKind getValueKind(JavaKind javaKind) { + return LIRKind.fromJavaKind(getTarget().arch, javaKind); + } + + /** + * The given registerConfig is optional, in case null is passed the default RegisterConfig from + * the CodeCacheProvider will be used. + */ + public abstract FrameMapBuilder newFrameMapBuilder(RegisterConfig registerConfig); + + public abstract RegisterAllocationConfig newRegisterAllocationConfig(RegisterConfig registerConfig); + + public abstract FrameMap newFrameMap(RegisterConfig registerConfig); + + public abstract LIRGeneratorTool newLIRGenerator(LIRGenerationResult lirGenRes); + + public abstract LIRGenerationResult newLIRGenerationResult(CompilationIdentifier compilationId, LIR lir, FrameMapBuilder frameMapBuilder, StructuredGraph graph, + Object stub); + + public abstract NodeLIRBuilderTool newNodeLIRBuilder(StructuredGraph graph, LIRGeneratorTool lirGen); + + /** + * Creates the assembler used to emit the machine code. + */ + protected abstract Assembler createAssembler(FrameMap frameMap); + + /** + * Creates the object used to fill in the details of a given compilation result. + */ + public abstract CompilationResultBuilder newCompilationResultBuilder(LIRGenerationResult lirGenResult, FrameMap frameMap, CompilationResult compilationResult, + CompilationResultBuilderFactory factory); + + /** + * Turns a Graal {@link CompilationResult} into a {@link CompiledCode} object that can be passed + * to the VM for code installation. + */ + protected abstract CompiledCode createCompiledCode(ResolvedJavaMethod method, CompilationRequest compilationRequest, CompilationResult compilationResult); + + /** + * @see #createInstalledCode(ResolvedJavaMethod, CompilationRequest, CompilationResult, + * SpeculationLog, InstalledCode, boolean) + */ + public InstalledCode createInstalledCode(ResolvedJavaMethod method, CompilationResult compilationResult, + SpeculationLog speculationLog, InstalledCode predefinedInstalledCode, boolean isDefault) { + return createInstalledCode(method, null, compilationResult, speculationLog, predefinedInstalledCode, isDefault); + } + + /** + * Installs code based on a given compilation result. + * + * @param method the method compiled to produce {@code compiledCode} or {@code null} if the + * input to {@code compResult} was not a {@link ResolvedJavaMethod} + * @param compilationRequest the compilation request or {@code null} + * @param compilationResult the code to be compiled + * @param predefinedInstalledCode a pre-allocated {@link InstalledCode} object to use as a + * reference to the installed code. If {@code null}, a new {@link InstalledCode} + * object will be created. + * @param speculationLog the speculation log to be used + * @param isDefault specifies if the installed code should be made the default implementation of + * {@code compRequest.getMethod()}. The default implementation for a method is the + * code executed for standard calls to the method. This argument is ignored if + * {@code compRequest == null}. + * @return a reference to the compiled and ready-to-run installed code + * @throws BailoutException if the code installation failed + */ + @SuppressWarnings("try") + public InstalledCode createInstalledCode(ResolvedJavaMethod method, CompilationRequest compilationRequest, CompilationResult compilationResult, + SpeculationLog speculationLog, InstalledCode predefinedInstalledCode, boolean isDefault) { + try (Scope s2 = Debug.scope("CodeInstall", getProviders().getCodeCache(), compilationResult)) { + CompiledCode compiledCode = createCompiledCode(method, compilationRequest, compilationResult); + return getProviders().getCodeCache().installCode(method, compiledCode, predefinedInstalledCode, speculationLog, isDefault); + } catch (Throwable e) { + throw Debug.handle(e); + } + } + + /** + * Installs code based on a given compilation result. + * + * @param method the method compiled to produce {@code compiledCode} or {@code null} if the + * input to {@code compResult} was not a {@link ResolvedJavaMethod} + * @param compilationRequest the request or {@code null} + * @param compilationResult the code to be compiled + * @return a reference to the compiled and ready-to-run installed code + * @throws BailoutException if the code installation failed + */ + public InstalledCode addInstalledCode(ResolvedJavaMethod method, CompilationRequest compilationRequest, CompilationResult compilationResult) { + return createInstalledCode(method, compilationRequest, compilationResult, null, null, false); + } + + /** + * Installs code based on a given compilation result and sets it as the default code to be used + * when {@code method} is invoked. + * + * @param method the method compiled to produce {@code compiledCode} or {@code null} if the + * input to {@code compResult} was not a {@link ResolvedJavaMethod} + * @param compilationResult the code to be compiled + * @return a reference to the compiled and ready-to-run installed code + * @throws BailoutException if the code installation failed + */ + public InstalledCode createDefaultInstalledCode(ResolvedJavaMethod method, CompilationResult compilationResult) { + return createInstalledCode(method, compilationResult, null, null, true); + } + + /** + * Emits the code for a given graph. + * + * @param installedCodeOwner the method the compiled code will be associated with once + * installed. This argument can be null. + */ + public abstract void emitCode(CompilationResultBuilder crb, LIR lir, ResolvedJavaMethod installedCodeOwner); + + /** + * Translates a set of registers from the callee's perspective to the caller's perspective. This + * is needed for architectures where input/output registers are renamed during a call (e.g. + * register windows on SPARC). Registers which are not visible by the caller are removed. + */ + public abstract Set translateToCallerRegisters(Set calleeRegisters); + + /** + * Gets the compilation id for a given {@link ResolvedJavaMethod}. Returns + * {@code CompilationIdentifier#INVALID_COMPILATION_ID} in case there is no such id. + * + * @param resolvedJavaMethod + */ + public CompilationIdentifier getCompilationIdentifier(ResolvedJavaMethod resolvedJavaMethod) { + return CompilationIdentifier.INVALID_COMPILATION_ID; + } +}