author | kvn |
Wed, 01 May 2019 12:31:29 -0700 | |
changeset 54669 | ad45b3802d4e |
parent 54084 | 84f10bbf993f |
child 54724 | 62f373a53296 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2013, 2018, 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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package org.graalvm.compiler.hotspot.amd64; |
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54669
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54084
diff
changeset
|
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import static org.graalvm.compiler.core.common.GraalOptions.GeneratePIC; |
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import static org.graalvm.compiler.hotspot.HotSpotBackend.Options.GraalArithmeticStubs; |
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import org.graalvm.compiler.api.replacements.Snippet; |
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import org.graalvm.compiler.core.common.spi.ForeignCallsProvider; |
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import org.graalvm.compiler.debug.DebugHandlersFactory; |
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import org.graalvm.compiler.graph.Node; |
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import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; |
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import org.graalvm.compiler.hotspot.HotSpotGraalRuntimeProvider; |
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import org.graalvm.compiler.hotspot.meta.DefaultHotSpotLoweringProvider; |
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import org.graalvm.compiler.hotspot.meta.HotSpotProviders; |
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import org.graalvm.compiler.hotspot.meta.HotSpotRegistersProvider; |
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import org.graalvm.compiler.hotspot.nodes.profiling.ProfileNode; |
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import org.graalvm.compiler.hotspot.replacements.profiling.ProbabilisticProfileSnippets; |
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import org.graalvm.compiler.nodes.StructuredGraph; |
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import org.graalvm.compiler.nodes.calc.FloatConvertNode; |
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import org.graalvm.compiler.nodes.extended.ForeignCallNode; |
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import org.graalvm.compiler.nodes.spi.LoweringTool; |
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import org.graalvm.compiler.options.OptionValues; |
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import org.graalvm.compiler.replacements.amd64.AMD64ConvertSnippets; |
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import org.graalvm.compiler.replacements.nodes.UnaryMathIntrinsicNode; |
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import org.graalvm.compiler.replacements.nodes.UnaryMathIntrinsicNode.UnaryOperation; |
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import org.graalvm.compiler.serviceprovider.JavaVersionUtil; |
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import jdk.vm.ci.code.TargetDescription; |
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import jdk.vm.ci.hotspot.HotSpotConstantReflectionProvider; |
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import jdk.vm.ci.meta.MetaAccessProvider; |
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import jdk.vm.ci.meta.ResolvedJavaMethod; |
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public class AMD64HotSpotLoweringProvider extends DefaultHotSpotLoweringProvider { |
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private AMD64ConvertSnippets.Templates convertSnippets; |
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private ProbabilisticProfileSnippets.Templates profileSnippets; |
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private AMD64X87MathSnippets.Templates mathSnippets; |
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public AMD64HotSpotLoweringProvider(HotSpotGraalRuntimeProvider runtime, MetaAccessProvider metaAccess, ForeignCallsProvider foreignCalls, HotSpotRegistersProvider registers, |
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HotSpotConstantReflectionProvider constantReflection, TargetDescription target) { |
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super(runtime, metaAccess, foreignCalls, registers, constantReflection, target); |
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} |
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@Override |
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public void initialize(OptionValues options, Iterable<DebugHandlersFactory> factories, HotSpotProviders providers, GraalHotSpotVMConfig config) { |
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convertSnippets = new AMD64ConvertSnippets.Templates(options, factories, providers, providers.getSnippetReflection(), providers.getCodeCache().getTarget()); |
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54669
ad45b3802d4e
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library
kvn
parents:
54084
diff
changeset
|
70 |
profileSnippets = ProfileNode.Options.ProbabilisticProfiling.getValue(options) && !JavaVersionUtil.Java8OrEarlier && GeneratePIC.getValue(options) |
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? new ProbabilisticProfileSnippets.Templates(options, factories, providers, providers.getCodeCache().getTarget()) |
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: null; |
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mathSnippets = new AMD64X87MathSnippets.Templates(options, factories, providers, providers.getSnippetReflection(), providers.getCodeCache().getTarget()); |
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super.initialize(options, factories, providers, config); |
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} |
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@Override |
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public void lower(Node n, LoweringTool tool) { |
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if (n instanceof FloatConvertNode) { |
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convertSnippets.lower((FloatConvertNode) n, tool); |
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} else if (profileSnippets != null && n instanceof ProfileNode) { |
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profileSnippets.lower((ProfileNode) n, tool); |
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} else if (n instanceof UnaryMathIntrinsicNode) { |
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lowerUnaryMath((UnaryMathIntrinsicNode) n, tool); |
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} else { |
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super.lower(n, tool); |
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} |
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} |
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private void lowerUnaryMath(UnaryMathIntrinsicNode math, LoweringTool tool) { |
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if (tool.getLoweringStage() == LoweringTool.StandardLoweringStage.HIGH_TIER) { |
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return; |
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} |
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StructuredGraph graph = math.graph(); |
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ResolvedJavaMethod method = graph.method(); |
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if (method != null) { |
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if (method.getAnnotation(Snippet.class) != null) { |
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// In the context of SnippetStub, i.e., Graal-generated stubs, use the LIR |
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// lowering to emit the stub assembly code instead of the Node lowering. |
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return; |
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} |
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} |
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if (!GraalArithmeticStubs.getValue(graph.getOptions())) { |
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switch (math.getOperation()) { |
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case SIN: |
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case COS: |
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case TAN: |
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// Math.sin(), .cos() and .tan() guarantee a value within 1 ULP of the exact |
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// result, but x87 trigonometric FPU instructions are only that accurate within |
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// [-pi/4, pi/4]. The snippets fall back to a foreign call to HotSpot stubs |
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// should the inputs outside of that interval. |
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mathSnippets.lower(math, tool); |
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return; |
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case LOG: |
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math.replaceAtUsages(graph.addOrUnique(new AMD64X87MathIntrinsicNode(math.getValue(), UnaryOperation.LOG))); |
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return; |
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case LOG10: |
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math.replaceAtUsages(graph.addOrUnique(new AMD64X87MathIntrinsicNode(math.getValue(), UnaryOperation.LOG10))); |
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return; |
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} |
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} |
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ForeignCallNode call = graph.add(new ForeignCallNode(foreignCalls, math.getOperation().foreignCallDescriptor, math.getValue())); |
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graph.addAfterFixed(tool.lastFixedNode(), call); |
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math.replaceAtUsages(call); |
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} |
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@Override |
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public Integer smallestCompareWidth() { |
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return 8; |
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} |
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} |