author | dlong |
Thu, 30 Nov 2017 10:40:48 -0800 | |
changeset 48172 | e26fc5201707 |
parent 47216 | 71c04702a3d5 |
child 48398 | 79afa4c434f6 |
permissions | -rw-r--r-- |
43972 | 1 |
/* |
48172
e26fc5201707
8191437: AOT doesn't work easily after thread local handshakes
dlong
parents:
47216
diff
changeset
|
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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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package org.graalvm.compiler.hotspot.aarch64; |
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import static org.graalvm.compiler.lir.LIRValueUtil.asConstant; |
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import static org.graalvm.compiler.lir.LIRValueUtil.isConstantValue; |
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import java.util.function.Function; |
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import org.graalvm.compiler.asm.Label; |
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import org.graalvm.compiler.asm.aarch64.AArch64Address.AddressingMode; |
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import org.graalvm.compiler.asm.aarch64.AArch64Assembler.PrefetchMode; |
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import org.graalvm.compiler.asm.aarch64.AArch64Assembler.ConditionFlag; |
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import org.graalvm.compiler.core.aarch64.AArch64ArithmeticLIRGenerator; |
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import org.graalvm.compiler.core.aarch64.AArch64LIRGenerator; |
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import org.graalvm.compiler.core.aarch64.AArch64LIRKindTool; |
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import org.graalvm.compiler.core.common.CompressEncoding; |
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import org.graalvm.compiler.core.common.LIRKind; |
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import org.graalvm.compiler.core.common.calc.Condition; |
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import org.graalvm.compiler.core.common.spi.ForeignCallLinkage; |
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import org.graalvm.compiler.core.common.spi.LIRKindTool; |
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import org.graalvm.compiler.debug.GraalError; |
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import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; |
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import org.graalvm.compiler.hotspot.HotSpotBackend; |
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import org.graalvm.compiler.hotspot.HotSpotDebugInfoBuilder; |
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import org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage; |
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import org.graalvm.compiler.hotspot.HotSpotLIRGenerationResult; |
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import org.graalvm.compiler.hotspot.HotSpotLIRGenerator; |
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import org.graalvm.compiler.hotspot.HotSpotLockStack; |
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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.stubs.Stub; |
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import org.graalvm.compiler.lir.LIRFrameState; |
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import org.graalvm.compiler.lir.LIRInstruction; |
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import org.graalvm.compiler.lir.LabelRef; |
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import org.graalvm.compiler.lir.StandardOp.SaveRegistersOp; |
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import org.graalvm.compiler.lir.SwitchStrategy; |
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import org.graalvm.compiler.lir.Variable; |
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import org.graalvm.compiler.lir.VirtualStackSlot; |
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import org.graalvm.compiler.lir.aarch64.AArch64AddressValue; |
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import org.graalvm.compiler.lir.aarch64.AArch64CCall; |
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import org.graalvm.compiler.lir.aarch64.AArch64Call; |
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import org.graalvm.compiler.lir.aarch64.AArch64ControlFlow.StrategySwitchOp; |
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import org.graalvm.compiler.lir.aarch64.AArch64FrameMapBuilder; |
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import org.graalvm.compiler.lir.aarch64.AArch64Move; |
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import org.graalvm.compiler.lir.aarch64.AArch64Move.StoreOp; |
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import org.graalvm.compiler.lir.aarch64.AArch64PrefetchOp; |
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import org.graalvm.compiler.lir.gen.LIRGenerationResult; |
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import jdk.vm.ci.aarch64.AArch64; |
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import jdk.vm.ci.aarch64.AArch64Kind; |
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import jdk.vm.ci.code.CallingConvention; |
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import jdk.vm.ci.code.Register; |
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import jdk.vm.ci.code.RegisterValue; |
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import jdk.vm.ci.code.StackSlot; |
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import jdk.vm.ci.hotspot.HotSpotCompressedNullConstant; |
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import jdk.vm.ci.hotspot.HotSpotObjectConstant; |
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import jdk.vm.ci.meta.AllocatableValue; |
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import jdk.vm.ci.meta.Constant; |
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import jdk.vm.ci.meta.DeoptimizationAction; |
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import jdk.vm.ci.meta.DeoptimizationReason; |
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import jdk.vm.ci.meta.JavaConstant; |
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import jdk.vm.ci.meta.JavaKind; |
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import jdk.vm.ci.meta.PlatformKind; |
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import jdk.vm.ci.meta.Value; |
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/** |
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* LIR generator specialized for AArch64 HotSpot. |
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*/ |
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public class AArch64HotSpotLIRGenerator extends AArch64LIRGenerator implements HotSpotLIRGenerator { |
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final GraalHotSpotVMConfig config; |
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private HotSpotDebugInfoBuilder debugInfoBuilder; |
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protected AArch64HotSpotLIRGenerator(HotSpotProviders providers, GraalHotSpotVMConfig config, LIRGenerationResult lirGenRes) { |
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this(new AArch64LIRKindTool(), new AArch64ArithmeticLIRGenerator(), new AArch64HotSpotMoveFactory(), providers, config, lirGenRes); |
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} |
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protected AArch64HotSpotLIRGenerator(LIRKindTool lirKindTool, AArch64ArithmeticLIRGenerator arithmeticLIRGen, MoveFactory moveFactory, HotSpotProviders providers, GraalHotSpotVMConfig config, |
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LIRGenerationResult lirGenRes) { |
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super(lirKindTool, arithmeticLIRGen, moveFactory, providers, lirGenRes); |
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this.config = config; |
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} |
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@Override |
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public HotSpotProviders getProviders() { |
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return (HotSpotProviders) super.getProviders(); |
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} |
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@Override |
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public boolean needOnlyOopMaps() { |
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// Stubs only need oop maps |
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return getResult().getStub() != null; |
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} |
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@SuppressWarnings("unused") private LIRFrameState currentRuntimeCallInfo; |
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@Override |
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protected void emitForeignCallOp(ForeignCallLinkage linkage, Value result, Value[] arguments, Value[] temps, LIRFrameState info) { |
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currentRuntimeCallInfo = info; |
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if (AArch64Call.isNearCall(linkage)) { |
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append(new AArch64Call.DirectNearForeignCallOp(linkage, result, arguments, temps, info, label)); |
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} else { |
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append(new AArch64Call.DirectFarForeignCallOp(linkage, result, arguments, temps, info, label)); |
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} |
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} |
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@Override |
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public void emitTailcall(Value[] args, Value address) { |
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throw GraalError.unimplemented(); |
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} |
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@Override |
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public void emitCCall(long address, CallingConvention nativeCallingConvention, Value[] args) { |
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Value[] argLocations = new Value[args.length]; |
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getResult().getFrameMapBuilder().callsMethod(nativeCallingConvention); |
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for (int i = 0; i < args.length; i++) { |
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Value arg = args[i]; |
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AllocatableValue loc = nativeCallingConvention.getArgument(i); |
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emitMove(loc, arg); |
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argLocations[i] = loc; |
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} |
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Value ptr = emitLoadConstant(LIRKind.value(AArch64Kind.QWORD), JavaConstant.forLong(address)); |
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append(new AArch64CCall(nativeCallingConvention.getReturn(), ptr, argLocations)); |
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} |
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public SaveRegistersOp emitSaveAllRegisters() { |
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throw GraalError.unimplemented(); |
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} |
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@Override |
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public VirtualStackSlot getLockSlot(int lockDepth) { |
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return getLockStack().makeLockSlot(lockDepth); |
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} |
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private HotSpotLockStack getLockStack() { |
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assert debugInfoBuilder != null && debugInfoBuilder.lockStack() != null; |
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return debugInfoBuilder.lockStack(); |
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} |
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@Override |
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public void emitCompareBranch(PlatformKind cmpKind, Value x, Value y, Condition cond, boolean unorderedIsTrue, LabelRef trueDestination, LabelRef falseDestination, |
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double trueDestinationProbability) { |
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Value localX = x; |
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Value localY = y; |
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if (localX instanceof HotSpotObjectConstant) { |
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localX = load(localX); |
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} |
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if (localY instanceof HotSpotObjectConstant) { |
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localY = load(localY); |
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} |
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super.emitCompareBranch(cmpKind, localX, localY, cond, unorderedIsTrue, trueDestination, falseDestination, trueDestinationProbability); |
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} |
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@Override |
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protected boolean emitCompare(PlatformKind cmpKind, Value a, Value b, Condition condition, boolean unorderedIsTrue) { |
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Value localA = a; |
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Value localB = b; |
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if (isConstantValue(a)) { |
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Constant c = asConstant(a); |
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if (HotSpotCompressedNullConstant.COMPRESSED_NULL.equals(c)) { |
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localA = AArch64.zr.asValue(LIRKind.value(AArch64Kind.DWORD)); |
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} else if (c instanceof HotSpotObjectConstant) { |
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localA = load(localA); |
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} |
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} |
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if (isConstantValue(b)) { |
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Constant c = asConstant(b); |
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if (HotSpotCompressedNullConstant.COMPRESSED_NULL.equals(c)) { |
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localB = AArch64.zr.asValue(LIRKind.value(AArch64Kind.DWORD)); |
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} else if (c instanceof HotSpotObjectConstant) { |
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localB = load(localB); |
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} |
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} |
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return super.emitCompare(cmpKind, localA, localB, condition, unorderedIsTrue); |
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} |
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@Override |
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public Value emitCompress(Value pointer, CompressEncoding encoding, boolean nonNull) { |
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LIRKind inputKind = pointer.getValueKind(LIRKind.class); |
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assert inputKind.getPlatformKind() == AArch64Kind.QWORD; |
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if (inputKind.isReference(0)) { |
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// oop |
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Variable result = newVariable(LIRKind.reference(AArch64Kind.DWORD)); |
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append(new AArch64HotSpotMove.CompressPointer(result, asAllocatable(pointer), getProviders().getRegisters().getHeapBaseRegister().asValue(), encoding, nonNull)); |
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return result; |
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} else { |
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// metaspace pointer |
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Variable result = newVariable(LIRKind.value(AArch64Kind.DWORD)); |
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AllocatableValue base = Value.ILLEGAL; |
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if (encoding.hasBase()) { |
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base = emitLoadConstant(LIRKind.value(AArch64Kind.QWORD), JavaConstant.forLong(encoding.getBase())); |
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} |
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append(new AArch64HotSpotMove.CompressPointer(result, asAllocatable(pointer), base, encoding, nonNull)); |
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return result; |
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} |
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} |
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@Override |
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public Value emitUncompress(Value pointer, CompressEncoding encoding, boolean nonNull) { |
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LIRKind inputKind = pointer.getValueKind(LIRKind.class); |
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assert inputKind.getPlatformKind() == AArch64Kind.DWORD; |
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if (inputKind.isReference(0)) { |
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// oop |
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Variable result = newVariable(LIRKind.reference(AArch64Kind.QWORD)); |
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append(new AArch64HotSpotMove.UncompressPointer(result, asAllocatable(pointer), getProviders().getRegisters().getHeapBaseRegister().asValue(), encoding, nonNull)); |
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return result; |
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} else { |
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// metaspace pointer |
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Variable result = newVariable(LIRKind.value(AArch64Kind.QWORD)); |
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AllocatableValue base = Value.ILLEGAL; |
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if (encoding.hasBase()) { |
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base = emitLoadConstant(LIRKind.value(AArch64Kind.QWORD), JavaConstant.forLong(encoding.getBase())); |
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} |
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append(new AArch64HotSpotMove.UncompressPointer(result, asAllocatable(pointer), base, encoding, nonNull)); |
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return result; |
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} |
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} |
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@Override |
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public void emitNullCheck(Value address, LIRFrameState state) { |
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if (address.getValueKind().getPlatformKind() == AArch64Kind.DWORD) { |
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CompressEncoding encoding = config.getOopEncoding(); |
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Value uncompressed = emitUncompress(address, encoding, false); |
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append(new AArch64Move.NullCheckOp(asAddressValue(uncompressed), state)); |
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} else { |
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super.emitNullCheck(address, state); |
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} |
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} |
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@Override |
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public void emitPrefetchAllocate(Value address) { |
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append(new AArch64PrefetchOp(asAddressValue(address), PrefetchMode.PSTL1KEEP)); |
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} |
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@Override |
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public void beforeRegisterAllocation() { |
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super.beforeRegisterAllocation(); |
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boolean hasDebugInfo = getResult().getLIR().hasDebugInfo(); |
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if (hasDebugInfo) { |
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getResult().setDeoptimizationRescueSlot(((AArch64FrameMapBuilder) getResult().getFrameMapBuilder()).allocateDeoptimizationRescueSlot()); |
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} |
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getResult().setMaxInterpreterFrameSize(debugInfoBuilder.maxInterpreterFrameSize()); |
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} |
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private Label label; |
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@Override |
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public Variable emitForeignCall(ForeignCallLinkage linkage, LIRFrameState state, Value... args) { |
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HotSpotForeignCallLinkage hotspotLinkage = (HotSpotForeignCallLinkage) linkage; |
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Variable result; |
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LIRFrameState debugInfo = null; |
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if (hotspotLinkage.needsDebugInfo()) { |
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debugInfo = state; |
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assert debugInfo != null || getStub() != null; |
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} |
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if (linkage.destroysRegisters() || hotspotLinkage.needsJavaFrameAnchor()) { |
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HotSpotRegistersProvider registers = getProviders().getRegisters(); |
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Register thread = registers.getThreadRegister(); |
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Variable scratch = newVariable(LIRKind.value(target().arch.getWordKind())); |
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284 |
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// We need a label for the return address. |
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label = new Label(); |
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287 |
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append(new AArch64HotSpotCRuntimeCallPrologueOp(config.threadLastJavaSpOffset(), config.threadLastJavaPcOffset(), config.threadLastJavaFpOffset(), thread, scratch, label)); |
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result = super.emitForeignCall(hotspotLinkage, debugInfo, args); |
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append(new AArch64HotSpotCRuntimeCallEpilogueOp(config.threadLastJavaSpOffset(), config.threadLastJavaFpOffset(), thread)); |
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// Clear it out so it's not being reused later. |
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label = null; |
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} else { |
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result = super.emitForeignCall(hotspotLinkage, debugInfo, args); |
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} |
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297 |
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return result; |
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} |
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300 |
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@Override |
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302 |
public void emitDeoptimizeCaller(DeoptimizationAction action, DeoptimizationReason reason) { |
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Value actionAndReason = emitJavaConstant(getMetaAccess().encodeDeoptActionAndReason(action, reason, 0)); |
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Value nullValue = emitConstant(LIRKind.reference(AArch64Kind.QWORD), JavaConstant.NULL_POINTER); |
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moveDeoptValuesToThread(actionAndReason, nullValue); |
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append(new AArch64HotSpotDeoptimizeCallerOp(config)); |
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} |
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308 |
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309 |
@Override |
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310 |
public void emitDeoptimize(Value actionAndReason, Value failedSpeculation, LIRFrameState state) { |
|
311 |
moveDeoptValuesToThread(actionAndReason, failedSpeculation); |
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append(new AArch64HotSpotDeoptimizeOp(state)); |
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313 |
} |
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314 |
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315 |
private void moveDeoptValuesToThread(Value actionAndReason, Value speculation) { |
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316 |
moveValueToThread(actionAndReason, config.pendingDeoptimizationOffset); |
|
317 |
moveValueToThread(speculation, config.pendingFailedSpeculationOffset); |
|
318 |
} |
|
319 |
||
320 |
private void moveValueToThread(Value value, int offset) { |
|
321 |
LIRKind wordKind = LIRKind.value(target().arch.getWordKind()); |
|
322 |
RegisterValue thread = getProviders().getRegisters().getThreadRegister().asValue(wordKind); |
|
323 |
final int transferSize = value.getValueKind().getPlatformKind().getSizeInBytes(); |
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46536 | 324 |
AArch64AddressValue address = new AArch64AddressValue(value.getValueKind(), thread, Value.ILLEGAL, offset, transferSize, AddressingMode.IMMEDIATE_SCALED); |
43972 | 325 |
append(new StoreOp((AArch64Kind) value.getPlatformKind(), address, loadReg(value), null)); |
326 |
} |
|
327 |
||
328 |
@Override |
|
329 |
public void emitUnwind(Value exception) { |
|
330 |
ForeignCallLinkage linkage = getForeignCalls().lookupForeignCall(HotSpotBackend.UNWIND_EXCEPTION_TO_CALLER); |
|
331 |
CallingConvention outgoingCc = linkage.getOutgoingCallingConvention(); |
|
332 |
assert outgoingCc.getArgumentCount() == 2; |
|
333 |
RegisterValue exceptionParameter = (RegisterValue) outgoingCc.getArgument(0); |
|
334 |
emitMove(exceptionParameter, exception); |
|
335 |
append(new AArch64HotSpotUnwindOp(config, exceptionParameter)); |
|
336 |
} |
|
337 |
||
338 |
@Override |
|
339 |
public void emitReturn(JavaKind kind, Value input) { |
|
340 |
AllocatableValue operand = Value.ILLEGAL; |
|
341 |
if (input != null) { |
|
342 |
operand = resultOperandFor(kind, input.getValueKind()); |
|
343 |
emitMove(operand, input); |
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344 |
} |
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48172
e26fc5201707
8191437: AOT doesn't work easily after thread local handshakes
dlong
parents:
47216
diff
changeset
|
345 |
Register thread = getProviders().getRegisters().getThreadRegister(); |
e26fc5201707
8191437: AOT doesn't work easily after thread local handshakes
dlong
parents:
47216
diff
changeset
|
346 |
append(new AArch64HotSpotReturnOp(operand, getStub() != null, config, thread)); |
43972 | 347 |
} |
348 |
||
349 |
/** |
|
350 |
* Gets the {@link Stub} this generator is generating code for or {@code null} if a stub is not |
|
351 |
* being generated. |
|
352 |
*/ |
|
353 |
public Stub getStub() { |
|
354 |
return getResult().getStub(); |
|
355 |
} |
|
356 |
||
357 |
@Override |
|
358 |
public HotSpotLIRGenerationResult getResult() { |
|
359 |
return ((HotSpotLIRGenerationResult) super.getResult()); |
|
360 |
} |
|
361 |
||
362 |
@Override |
|
363 |
protected StrategySwitchOp createStrategySwitchOp(SwitchStrategy strategy, LabelRef[] keyTargets, LabelRef defaultTarget, Variable key, AllocatableValue scratchValue, |
|
364 |
Function<Condition, ConditionFlag> converter) { |
|
365 |
return new AArch64HotSpotStrategySwitchOp(strategy, keyTargets, defaultTarget, key, scratchValue, converter); |
|
366 |
} |
|
367 |
||
368 |
public void setDebugInfoBuilder(HotSpotDebugInfoBuilder debugInfoBuilder) { |
|
369 |
this.debugInfoBuilder = debugInfoBuilder; |
|
370 |
} |
|
371 |
||
372 |
@Override |
|
373 |
public SaveRegistersOp createZapRegisters(Register[] zappedRegisters, JavaConstant[] zapValues) { |
|
374 |
throw GraalError.unimplemented(); |
|
375 |
} |
|
376 |
||
377 |
@Override |
|
378 |
public LIRInstruction createZapArgumentSpace(StackSlot[] zappedStack, JavaConstant[] zapValues) { |
|
379 |
throw GraalError.unimplemented(); |
|
380 |
} |
|
381 |
} |