Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/stubs/Stub.java @ 9420:393d62a868da
replaced thread_is_interrupted assembler stub with a compiled stub (GRAAL-81)
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 30 Apr 2013 00:33:27 +0200 |
parents | 8d3a7fb9eb5f |
children | c1ba734c1ea0 |
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/* * Copyright (c) 2012, 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 com.oracle.graal.hotspot.stubs; import static com.oracle.graal.api.code.DeoptimizationAction.*; import static com.oracle.graal.api.meta.DeoptimizationReason.*; import static com.oracle.graal.hotspot.nodes.CStringNode.*; import static com.oracle.graal.hotspot.replacements.HotSpotSnippetUtils.*; import java.lang.reflect.*; import java.util.*; import java.util.concurrent.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.code.CompilationResult.DataPatch; import com.oracle.graal.api.code.RuntimeCallTarget.Descriptor; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.*; import com.oracle.graal.compiler.target.*; import com.oracle.graal.debug.*; import com.oracle.graal.debug.internal.*; import com.oracle.graal.graph.Node.ConstantNodeParameter; import com.oracle.graal.graph.Node.NodeIntrinsic; import com.oracle.graal.hotspot.*; import com.oracle.graal.hotspot.meta.*; import com.oracle.graal.hotspot.nodes.*; import com.oracle.graal.java.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.extended.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.phases.*; import com.oracle.graal.phases.PhasePlan.PhasePosition; import com.oracle.graal.replacements.*; import com.oracle.graal.replacements.Snippet.ConstantParameter; import com.oracle.graal.replacements.SnippetTemplate.AbstractTemplates; import com.oracle.graal.replacements.SnippetTemplate.Arguments; import com.oracle.graal.replacements.SnippetTemplate.SnippetInfo; import com.oracle.graal.word.*; //JaCoCo Exclude /** * Base class for implementing some low level code providing the out-of-line slow path for a * snippet. A concrete stub is defined a subclass of this class. * <p> * Implementation detail: The stub classes re-use some of the functionality for {@link Snippet}s * purely for convenience (e.g., can re-use the {@link ReplacementsImpl}). */ public abstract class Stub extends AbstractTemplates implements Snippets { /** * The method implementing the stub. */ protected final SnippetInfo stubInfo; /** * The linkage information for the stub. */ protected final HotSpotRuntimeCallTarget linkage; /** * The code installed for the stub. */ protected InstalledCode code; /** * The registers/temporaries defined by this stub. */ private Set<Register> definedRegisters; public void initDefinedRegisters(Set<Register> registers) { assert registers != null; assert definedRegisters == null || registers.equals(definedRegisters) : "cannot redefine"; definedRegisters = registers; } public Set<Register> getDefinedRegisters() { assert definedRegisters != null : "not yet initialized"; return definedRegisters; } /** * Creates a new stub container.. * * @param linkage linkage details for a call to the stub */ public Stub(HotSpotRuntime runtime, Replacements replacements, TargetDescription target, HotSpotRuntimeCallTarget linkage) { super(runtime, replacements, target); this.stubInfo = snippet(getClass(), null); this.linkage = linkage; } /** * Adds the {@linkplain ConstantParameter constant} arguments of this stub. */ protected abstract Arguments makeArguments(SnippetInfo stub); protected HotSpotRuntime runtime() { return (HotSpotRuntime) runtime; } /** * Gets the method implementing this stub. */ public ResolvedJavaMethod getMethod() { return stubInfo.getMethod(); } public HotSpotRuntimeCallTarget getLinkage() { return linkage; } private boolean checkCompilationResult(CompilationResult compResult) { for (DataPatch data : compResult.getDataReferences()) { Constant constant = data.constant; assert constant.getKind() != Kind.Object : MetaUtil.format("%h.%n(%p): ", getMethod()) + "cannot have embedded oop: " + constant; assert constant.getPrimitiveAnnotation() == null : MetaUtil.format("%h.%n(%p): ", getMethod()) + "cannot have embedded metadata: " + constant; } return true; } /** * Looks for a {@link CRuntimeCall} node intrinsic named {@code name} in {@code stubClass} and * returns a {@link Descriptor} based on its signature and the value of {@code hasSideEffect}. */ protected static <T extends Stub> Descriptor descriptorFor(Class<T> stubClass, String name, boolean hasSideEffect) { Method found = null; for (Method method : stubClass.getDeclaredMethods()) { if (Modifier.isStatic(method.getModifiers()) && method.getAnnotation(NodeIntrinsic.class) != null && method.getName().equals(name)) { if (method.getAnnotation(NodeIntrinsic.class).value() == CRuntimeCall.class) { assert found == null : "found more than one C runtime call named " + name + " in " + stubClass; assert method.getParameterTypes().length != 0 && method.getParameterTypes()[0] == Descriptor.class : "first parameter of C runtime call '" + name + "' in " + stubClass + " must be of type " + Descriptor.class.getSimpleName(); found = method; } } } assert found != null : "could not find C runtime call named " + name + " in " + stubClass; List<Class<?>> paramList = Arrays.asList(found.getParameterTypes()); Class[] cCallTypes = paramList.subList(1, paramList.size()).toArray(new Class[paramList.size() - 1]); return new Descriptor(name, hasSideEffect, found.getReturnType(), cCallTypes); } /** * Gets the code for this stub, compiling it first if necessary. */ public synchronized InstalledCode getCode(final Backend backend) { if (code == null) { Debug.sandbox("CompilingStub", new Object[]{runtime(), getMethod()}, DebugScope.getConfig(), new Runnable() { @Override public void run() { Arguments args = makeArguments(stubInfo); SnippetTemplate template = template(args); StructuredGraph graph = template.copySpecializedGraph(); PhasePlan phasePlan = new PhasePlan(); GraphBuilderPhase graphBuilderPhase = new GraphBuilderPhase(runtime, GraphBuilderConfiguration.getDefault(), OptimisticOptimizations.ALL); phasePlan.addPhase(PhasePosition.AFTER_PARSING, graphBuilderPhase); final CompilationResult compResult = GraalCompiler.compileMethod(runtime(), replacements, backend, runtime().getTarget(), getMethod(), graph, null, phasePlan, OptimisticOptimizations.ALL, new SpeculationLog()); assert checkCompilationResult(compResult); assert definedRegisters != null; code = Debug.scope("CodeInstall", new Callable<InstalledCode>() { @Override public InstalledCode call() { InstalledCode installedCode = runtime().addMethod(getMethod(), compResult); assert installedCode != null : "error installing stub " + getMethod(); if (Debug.isDumpEnabled()) { Debug.dump(new Object[]{compResult, installedCode}, "After code installation"); } // TTY.println(getMethod().toString()); // TTY.println(runtime().disassemble(installedCode)); return installedCode; } }); } }); assert code != null : "error installing stub " + getMethod(); } return code; } static void log(boolean enabled, String format, long value) { if (enabled) { printf(format, value); } } static void log(boolean enabled, String format, WordBase value) { if (enabled) { printf(format, value.rawValue()); } } static void log(boolean enabled, String format, Word v1, long v2) { if (enabled) { printf(format, v1.rawValue(), v2); } } static void log(boolean enabled, String format, Word v1, Word v2) { if (enabled) { printf(format, v1.rawValue(), v2.rawValue()); } } static void handlePendingException(boolean isObjectResult) { if (clearPendingException(thread())) { if (isObjectResult) { getAndClearObjectResult(thread()); } DeoptimizeCallerNode.deopt(InvalidateReprofile, RuntimeConstraint); } } public static final Descriptor STUB_PRINTF = new Descriptor("stubPrintf", false, void.class, Word.class, long.class, long.class, long.class); @NodeIntrinsic(RuntimeCallNode.class) private static native void printf(@ConstantNodeParameter Descriptor stubPrintf, Word format, long v1, long v2, long v3); /** * Prints a formatted string to the log stream. * * @param format a C style printf format value that can contain at most one conversion specifier * (i.e., a sequence of characters starting with '%'). * @param value the value associated with the conversion specifier */ public static void printf(String format, long value) { printf(STUB_PRINTF, cstring(format), value, 0L, 0L); } public static void printf(String format, long v1, long v2) { printf(STUB_PRINTF, cstring(format), v1, v2, 0L); } public static void printf(String format, long v1, long v2, long v3) { printf(STUB_PRINTF, cstring(format), v1, v2, v3); } }