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src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.amd64/src/org/graalvm/compiler/hotspot/amd64/AMD64HotSpotLoweringProvider.java
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@@ -23,106 +23,107 @@
package org.graalvm.compiler.hotspot.amd64;
import static org.graalvm.compiler.hotspot.HotSpotBackend.Options.GraalArithmeticStubs;
-import static org.graalvm.compiler.hotspot.amd64.AMD64HotSpotForeignCallsProvider.ARITHMETIC_COS_STUB;
-import static org.graalvm.compiler.hotspot.amd64.AMD64HotSpotForeignCallsProvider.ARITHMETIC_EXP_STUB;
-import static org.graalvm.compiler.hotspot.amd64.AMD64HotSpotForeignCallsProvider.ARITHMETIC_LOG10_STUB;
-import static org.graalvm.compiler.hotspot.amd64.AMD64HotSpotForeignCallsProvider.ARITHMETIC_LOG_STUB;
-import static org.graalvm.compiler.hotspot.amd64.AMD64HotSpotForeignCallsProvider.ARITHMETIC_POW_STUB;
-import static org.graalvm.compiler.hotspot.amd64.AMD64HotSpotForeignCallsProvider.ARITHMETIC_SIN_STUB;
-import static org.graalvm.compiler.hotspot.amd64.AMD64HotSpotForeignCallsProvider.ARITHMETIC_TAN_STUB;
-import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor;
+import org.graalvm.compiler.api.replacements.Snippet;
import org.graalvm.compiler.core.common.spi.ForeignCallsProvider;
import org.graalvm.compiler.debug.DebugHandlersFactory;
import org.graalvm.compiler.graph.Node;
import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
import org.graalvm.compiler.hotspot.HotSpotGraalRuntimeProvider;
import org.graalvm.compiler.hotspot.meta.DefaultHotSpotLoweringProvider;
import org.graalvm.compiler.hotspot.meta.HotSpotProviders;
import org.graalvm.compiler.hotspot.meta.HotSpotRegistersProvider;
import org.graalvm.compiler.hotspot.nodes.profiling.ProfileNode;
import org.graalvm.compiler.hotspot.replacements.profiling.ProbabilisticProfileSnippets;
+import org.graalvm.compiler.nodes.StructuredGraph;
import org.graalvm.compiler.nodes.calc.FloatConvertNode;
+import org.graalvm.compiler.nodes.extended.ForeignCallNode;
import org.graalvm.compiler.nodes.spi.LoweringTool;
import org.graalvm.compiler.options.OptionValues;
import org.graalvm.compiler.replacements.amd64.AMD64ConvertSnippets;
-import org.graalvm.compiler.replacements.nodes.BinaryMathIntrinsicNode.BinaryOperation;
+import org.graalvm.compiler.replacements.nodes.UnaryMathIntrinsicNode;
import org.graalvm.compiler.replacements.nodes.UnaryMathIntrinsicNode.UnaryOperation;
+import org.graalvm.compiler.serviceprovider.JavaVersionUtil;
import jdk.vm.ci.code.TargetDescription;
import jdk.vm.ci.hotspot.HotSpotConstantReflectionProvider;
import jdk.vm.ci.meta.MetaAccessProvider;
+import jdk.vm.ci.meta.ResolvedJavaMethod;
public class AMD64HotSpotLoweringProvider extends DefaultHotSpotLoweringProvider {
private AMD64ConvertSnippets.Templates convertSnippets;
private ProbabilisticProfileSnippets.Templates profileSnippets;
+ private AMD64X87MathSnippets.Templates mathSnippets;
public AMD64HotSpotLoweringProvider(HotSpotGraalRuntimeProvider runtime, MetaAccessProvider metaAccess, ForeignCallsProvider foreignCalls, HotSpotRegistersProvider registers,
HotSpotConstantReflectionProvider constantReflection, TargetDescription target) {
super(runtime, metaAccess, foreignCalls, registers, constantReflection, target);
}
@Override
public void initialize(OptionValues options, Iterable<DebugHandlersFactory> factories, HotSpotProviders providers, GraalHotSpotVMConfig config) {
convertSnippets = new AMD64ConvertSnippets.Templates(options, factories, providers, providers.getSnippetReflection(), providers.getCodeCache().getTarget());
- profileSnippets = ProfileNode.Options.ProbabilisticProfiling.getValue(options)
+ profileSnippets = ProfileNode.Options.ProbabilisticProfiling.getValue(options) && !JavaVersionUtil.Java8OrEarlier
? new ProbabilisticProfileSnippets.Templates(options, factories, providers, providers.getCodeCache().getTarget())
: null;
+ mathSnippets = new AMD64X87MathSnippets.Templates(options, factories, providers, providers.getSnippetReflection(), providers.getCodeCache().getTarget());
super.initialize(options, factories, providers, config);
}
@Override
public void lower(Node n, LoweringTool tool) {
if (n instanceof FloatConvertNode) {
convertSnippets.lower((FloatConvertNode) n, tool);
} else if (profileSnippets != null && n instanceof ProfileNode) {
profileSnippets.lower((ProfileNode) n, tool);
+ } else if (n instanceof UnaryMathIntrinsicNode) {
+ lowerUnaryMath((UnaryMathIntrinsicNode) n, tool);
} else {
super.lower(n, tool);
}
}
- @Override
- protected ForeignCallDescriptor toForeignCall(UnaryOperation operation) {
- if (GraalArithmeticStubs.getValue(runtime.getOptions())) {
- switch (operation) {
- case LOG:
- return ARITHMETIC_LOG_STUB;
- case LOG10:
- return ARITHMETIC_LOG10_STUB;
+ private void lowerUnaryMath(UnaryMathIntrinsicNode math, LoweringTool tool) {
+ if (tool.getLoweringStage() == LoweringTool.StandardLoweringStage.HIGH_TIER) {
+ return;
+ }
+ StructuredGraph graph = math.graph();
+ ResolvedJavaMethod method = graph.method();
+ if (method != null) {
+ if (method.getAnnotation(Snippet.class) != null) {
+ // In the context of SnippetStub, i.e., Graal-generated stubs, use the LIR
+ // lowering to emit the stub assembly code instead of the Node lowering.
+ return;
+ }
+ }
+ if (!GraalArithmeticStubs.getValue(graph.getOptions())) {
+ switch (math.getOperation()) {
case SIN:
- return ARITHMETIC_SIN_STUB;
case COS:
- return ARITHMETIC_COS_STUB;
case TAN:
- return ARITHMETIC_TAN_STUB;
- case EXP:
- return ARITHMETIC_EXP_STUB;
+ // Math.sin(), .cos() and .tan() guarantee a value within 1 ULP of the exact
+ // result, but x87 trigonometric FPU instructions are only that accurate within
+ // [-pi/4, pi/4]. The snippets fall back to a foreign call to HotSpot stubs
+ // should the inputs outside of that interval.
+ mathSnippets.lower(math, tool);
+ return;
+ case LOG:
+ math.replaceAtUsages(graph.addOrUnique(new AMD64X87MathIntrinsicNode(math.getValue(), UnaryOperation.LOG)));
+ return;
+ case LOG10:
+ math.replaceAtUsages(graph.addOrUnique(new AMD64X87MathIntrinsicNode(math.getValue(), UnaryOperation.LOG10)));
+ return;
}
- } else if (operation == UnaryOperation.EXP) {
- return operation.foreignCallDescriptor;
}
- // Lower only using LIRGenerator
- return null;
- }
- @Override
- protected ForeignCallDescriptor toForeignCall(BinaryOperation operation) {
- if (GraalArithmeticStubs.getValue(runtime.getOptions())) {
- switch (operation) {
- case POW:
- return ARITHMETIC_POW_STUB;
- }
- } else if (operation == BinaryOperation.POW) {
- return operation.foreignCallDescriptor;
- }
- // Lower only using LIRGenerator
- return null;
+ ForeignCallNode call = graph.add(new ForeignCallNode(foreignCalls, math.getOperation().foreignCallDescriptor, math.getValue()));
+ graph.addAfterFixed(tool.lastFixedNode(), call);
+ math.replaceAtUsages(call);
}
@Override
public Integer smallestCompareWidth() {
return 8;
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