| /* |
| * Copyright (c) 2013, 2018, 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.hotspot.sparc; |
| |
| import static jdk.vm.ci.sparc.SPARCKind.WORD; |
| import static jdk.vm.ci.sparc.SPARCKind.XWORD; |
| import static org.graalvm.compiler.lir.LIRValueUtil.asConstant; |
| import static org.graalvm.compiler.lir.LIRValueUtil.isConstantValue; |
| |
| import org.graalvm.compiler.asm.sparc.SPARCAssembler; |
| import org.graalvm.compiler.core.common.CompressEncoding; |
| import org.graalvm.compiler.core.common.LIRKind; |
| import org.graalvm.compiler.core.common.calc.Condition; |
| import org.graalvm.compiler.core.common.spi.ForeignCallLinkage; |
| import org.graalvm.compiler.core.common.spi.LIRKindTool; |
| import org.graalvm.compiler.core.sparc.SPARCArithmeticLIRGenerator; |
| import org.graalvm.compiler.core.sparc.SPARCLIRGenerator; |
| import org.graalvm.compiler.core.sparc.SPARCLIRKindTool; |
| import org.graalvm.compiler.debug.GraalError; |
| import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; |
| import org.graalvm.compiler.hotspot.HotSpotBackend; |
| import org.graalvm.compiler.hotspot.HotSpotDebugInfoBuilder; |
| import org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage; |
| import org.graalvm.compiler.hotspot.HotSpotLIRGenerationResult; |
| import org.graalvm.compiler.hotspot.HotSpotLIRGenerator; |
| import org.graalvm.compiler.hotspot.HotSpotLockStack; |
| import org.graalvm.compiler.hotspot.debug.BenchmarkCounters; |
| import org.graalvm.compiler.hotspot.meta.HotSpotProviders; |
| import org.graalvm.compiler.hotspot.meta.HotSpotRegistersProvider; |
| import org.graalvm.compiler.hotspot.stubs.Stub; |
| import org.graalvm.compiler.lir.LIRFrameState; |
| import org.graalvm.compiler.lir.LIRInstruction; |
| import org.graalvm.compiler.lir.LabelRef; |
| import org.graalvm.compiler.lir.StandardOp.SaveRegistersOp; |
| import org.graalvm.compiler.lir.SwitchStrategy; |
| import org.graalvm.compiler.lir.Variable; |
| import org.graalvm.compiler.lir.VirtualStackSlot; |
| import org.graalvm.compiler.lir.gen.LIRGenerationResult; |
| import org.graalvm.compiler.lir.sparc.SPARCAddressValue; |
| import org.graalvm.compiler.lir.sparc.SPARCControlFlow.StrategySwitchOp; |
| import org.graalvm.compiler.lir.sparc.SPARCFrameMapBuilder; |
| import org.graalvm.compiler.lir.sparc.SPARCImmediateAddressValue; |
| import org.graalvm.compiler.lir.sparc.SPARCMove.CompareAndSwapOp; |
| import org.graalvm.compiler.lir.sparc.SPARCMove.NullCheckOp; |
| import org.graalvm.compiler.lir.sparc.SPARCMove.StoreOp; |
| import org.graalvm.compiler.lir.sparc.SPARCPrefetchOp; |
| import org.graalvm.compiler.lir.sparc.SPARCSaveRegistersOp; |
| |
| import jdk.vm.ci.code.CallingConvention; |
| import jdk.vm.ci.code.Register; |
| import jdk.vm.ci.code.RegisterValue; |
| import jdk.vm.ci.code.StackSlot; |
| import jdk.vm.ci.hotspot.HotSpotCompressedNullConstant; |
| import jdk.vm.ci.hotspot.HotSpotObjectConstant; |
| import jdk.vm.ci.meta.AllocatableValue; |
| import jdk.vm.ci.meta.Constant; |
| import jdk.vm.ci.meta.DeoptimizationAction; |
| import jdk.vm.ci.meta.DeoptimizationReason; |
| import jdk.vm.ci.meta.JavaConstant; |
| import jdk.vm.ci.meta.JavaKind; |
| import jdk.vm.ci.meta.PlatformKind; |
| import jdk.vm.ci.meta.SpeculationLog; |
| import jdk.vm.ci.meta.Value; |
| import jdk.vm.ci.meta.ValueKind; |
| import jdk.vm.ci.sparc.SPARC; |
| import jdk.vm.ci.sparc.SPARCKind; |
| |
| public class SPARCHotSpotLIRGenerator extends SPARCLIRGenerator implements HotSpotLIRGenerator { |
| |
| final GraalHotSpotVMConfig config; |
| private HotSpotDebugInfoBuilder debugInfoBuilder; |
| |
| public SPARCHotSpotLIRGenerator(HotSpotProviders providers, GraalHotSpotVMConfig config, LIRGenerationResult lirGenRes) { |
| this(providers, config, lirGenRes, new ConstantTableBaseProvider()); |
| } |
| |
| private SPARCHotSpotLIRGenerator(HotSpotProviders providers, GraalHotSpotVMConfig config, LIRGenerationResult lirGenRes, ConstantTableBaseProvider constantTableBaseProvider) { |
| this(new SPARCLIRKindTool(), new SPARCArithmeticLIRGenerator(), new SPARCHotSpotMoveFactory(constantTableBaseProvider), providers, config, lirGenRes, constantTableBaseProvider); |
| } |
| |
| public SPARCHotSpotLIRGenerator(LIRKindTool lirKindTool, SPARCArithmeticLIRGenerator arithmeticLIRGen, MoveFactory moveFactory, HotSpotProviders providers, GraalHotSpotVMConfig config, |
| LIRGenerationResult lirGenRes, ConstantTableBaseProvider constantTableBaseProvider) { |
| super(lirKindTool, arithmeticLIRGen, moveFactory, providers, lirGenRes, constantTableBaseProvider); |
| assert config.basicLockSize == 8; |
| this.config = config; |
| } |
| |
| @Override |
| public HotSpotProviders getProviders() { |
| return (HotSpotProviders) super.getProviders(); |
| } |
| |
| /** |
| * The slot reserved for storing the original return address when a frame is marked for |
| * deoptimization. The return address slot in the callee is overwritten with the address of a |
| * deoptimization stub. |
| */ |
| private StackSlot deoptimizationRescueSlot; |
| |
| /** |
| * Value where the address for safepoint poll is kept. |
| */ |
| private AllocatableValue safepointAddressValue; |
| |
| @Override |
| public VirtualStackSlot getLockSlot(int lockDepth) { |
| return getLockStack().makeLockSlot(lockDepth); |
| } |
| |
| private HotSpotLockStack getLockStack() { |
| assert debugInfoBuilder != null && debugInfoBuilder.lockStack() != null; |
| return debugInfoBuilder.lockStack(); |
| } |
| |
| @Override |
| public boolean needOnlyOopMaps() { |
| // Stubs only need oop maps |
| return getStub() != null; |
| } |
| |
| public Stub getStub() { |
| return getResult().getStub(); |
| } |
| |
| @Override |
| public HotSpotLIRGenerationResult getResult() { |
| return ((HotSpotLIRGenerationResult) super.getResult()); |
| } |
| |
| @Override |
| public void beforeRegisterAllocation() { |
| super.beforeRegisterAllocation(); |
| boolean hasDebugInfo = getResult().getLIR().hasDebugInfo(); |
| if (hasDebugInfo) { |
| getResult().setDeoptimizationRescueSlot(((SPARCFrameMapBuilder) getResult().getFrameMapBuilder()).allocateDeoptimizationRescueSlot()); |
| } |
| |
| getResult().setMaxInterpreterFrameSize(debugInfoBuilder.maxInterpreterFrameSize()); |
| } |
| |
| @Override |
| public Variable emitForeignCall(ForeignCallLinkage linkage, LIRFrameState state, Value... args) { |
| HotSpotForeignCallLinkage hotspotLinkage = (HotSpotForeignCallLinkage) linkage; |
| Variable result; |
| LIRFrameState debugInfo = null; |
| if (hotspotLinkage.needsDebugInfo()) { |
| debugInfo = state; |
| assert debugInfo != null || getStub() != null; |
| } |
| |
| if (linkage.destroysRegisters() || hotspotLinkage.needsJavaFrameAnchor()) { |
| HotSpotRegistersProvider registers = getProviders().getRegisters(); |
| Register thread = registers.getThreadRegister(); |
| Value threadTemp = newVariable(LIRKind.value(SPARCKind.XWORD)); |
| Register stackPointer = registers.getStackPointerRegister(); |
| Variable spScratch = newVariable(LIRKind.value(target().arch.getWordKind())); |
| append(new SPARCHotSpotCRuntimeCallPrologueOp(config.threadLastJavaSpOffset(), thread, stackPointer, threadTemp, spScratch)); |
| result = super.emitForeignCall(hotspotLinkage, debugInfo, args); |
| append(new SPARCHotSpotCRuntimeCallEpilogueOp(config.threadLastJavaSpOffset(), config.threadLastJavaPcOffset(), config.threadJavaFrameAnchorFlagsOffset(), thread, threadTemp)); |
| } else { |
| result = super.emitForeignCall(hotspotLinkage, debugInfo, args); |
| } |
| |
| return result; |
| } |
| |
| @Override |
| public void emitReturn(JavaKind javaKind, Value input) { |
| AllocatableValue operand = Value.ILLEGAL; |
| if (input != null) { |
| operand = resultOperandFor(javaKind, input.getValueKind()); |
| emitMove(operand, input); |
| } |
| Register thread = getProviders().getRegisters().getThreadRegister(); |
| append(new SPARCHotSpotReturnOp(operand, getStub() != null, config, thread, getSafepointAddressValue(), getResult().requiresReservedStackAccessCheck())); |
| } |
| |
| @Override |
| public void emitTailcall(Value[] args, Value address) { |
| throw GraalError.unimplemented(); |
| } |
| |
| @Override |
| public void emitUnwind(Value exception) { |
| ForeignCallLinkage linkage = getForeignCalls().lookupForeignCall(HotSpotBackend.UNWIND_EXCEPTION_TO_CALLER); |
| CallingConvention linkageCc = linkage.getOutgoingCallingConvention(); |
| assert linkageCc.getArgumentCount() == 2; |
| RegisterValue exceptionParameter = (RegisterValue) linkageCc.getArgument(0); |
| emitMove(exceptionParameter, exception); |
| append(new SPARCHotSpotUnwindOp(exceptionParameter)); |
| } |
| |
| private void moveDeoptValuesToThread(Value actionAndReason, Value speculation) { |
| moveValueToThread(actionAndReason, config.pendingDeoptimizationOffset); |
| moveValueToThread(speculation, config.pendingFailedSpeculationOffset); |
| } |
| |
| private void moveValueToThread(Value v, int offset) { |
| LIRKind wordKind = LIRKind.value(target().arch.getWordKind()); |
| RegisterValue thread = getProviders().getRegisters().getThreadRegister().asValue(wordKind); |
| SPARCAddressValue pendingDeoptAddress = new SPARCImmediateAddressValue(wordKind, thread, offset); |
| append(new StoreOp(v.getPlatformKind(), pendingDeoptAddress, load(v), null)); |
| } |
| |
| @Override |
| public void emitDeoptimize(Value actionAndReason, Value speculation, LIRFrameState state) { |
| moveDeoptValuesToThread(actionAndReason, speculation); |
| append(new SPARCDeoptimizeOp(state, target().arch.getWordKind())); |
| } |
| |
| @Override |
| public void emitDeoptimizeCaller(DeoptimizationAction action, DeoptimizationReason reason) { |
| Value actionAndReason = emitJavaConstant(getMetaAccess().encodeDeoptActionAndReason(action, reason, 0)); |
| Value speculation = emitJavaConstant(getMetaAccess().encodeSpeculation(SpeculationLog.NO_SPECULATION)); |
| moveDeoptValuesToThread(actionAndReason, speculation); |
| append(new SPARCHotSpotDeoptimizeCallerOp()); |
| } |
| |
| @Override |
| public Variable emitLogicCompareAndSwap(LIRKind accessKind, Value address, Value expectedValue, Value newValue, Value trueValue, Value falseValue) { |
| ValueKind<?> kind = newValue.getValueKind(); |
| assert kind.equals(expectedValue.getValueKind()); |
| SPARCKind memKind = (SPARCKind) kind.getPlatformKind(); |
| Variable result = newVariable(newValue.getValueKind()); |
| append(new CompareAndSwapOp(result, asAllocatable(address), asAllocatable(expectedValue), asAllocatable(newValue))); |
| return emitConditionalMove(memKind, expectedValue, result, Condition.EQ, true, trueValue, falseValue); |
| } |
| |
| @Override |
| public Variable emitValueCompareAndSwap(LIRKind accessKind, Value address, Value expectedValue, Value newValue) { |
| ValueKind<?> kind = newValue.getValueKind(); |
| assert kind.equals(expectedValue.getValueKind()); |
| Variable result = newVariable(newValue.getValueKind()); |
| append(new CompareAndSwapOp(result, asAllocatable(address), asAllocatable(expectedValue), asAllocatable(newValue))); |
| return result; |
| } |
| |
| @Override |
| public void emitPrefetchAllocate(Value address) { |
| SPARCAddressValue addr = asAddressValue(address); |
| append(new SPARCPrefetchOp(addr, SPARCAssembler.Fcn.SeveralWritesAndPossiblyReads)); |
| } |
| |
| public StackSlot getDeoptimizationRescueSlot() { |
| return deoptimizationRescueSlot; |
| } |
| |
| @Override |
| public void emitCompareBranch(PlatformKind cmpKind, Value x, Value y, Condition cond, boolean unorderedIsTrue, LabelRef trueDestination, LabelRef falseDestination, |
| double trueDestinationProbability) { |
| Value localX = x; |
| Value localY = y; |
| if (localX instanceof HotSpotObjectConstant) { |
| localX = load(localX); |
| } |
| if (localY instanceof HotSpotObjectConstant) { |
| localY = load(localY); |
| } |
| super.emitCompareBranch(cmpKind, localX, localY, cond, unorderedIsTrue, trueDestination, falseDestination, trueDestinationProbability); |
| } |
| |
| @Override |
| protected boolean emitCompare(SPARCKind cmpKind, Value a, Value b) { |
| Value localA = a; |
| Value localB = b; |
| if (isConstantValue(a)) { |
| Constant c = asConstant(a); |
| if (HotSpotCompressedNullConstant.COMPRESSED_NULL.equals(c)) { |
| localA = SPARC.g0.asValue(LIRKind.value(WORD)); |
| } else if (c instanceof HotSpotObjectConstant) { |
| localA = load(localA); |
| } |
| } |
| if (isConstantValue(b)) { |
| Constant c = asConstant(b); |
| if (HotSpotCompressedNullConstant.COMPRESSED_NULL.equals(c)) { |
| localB = SPARC.g0.asValue(LIRKind.value(WORD)); |
| } else if (c instanceof HotSpotObjectConstant) { |
| localB = load(localB); |
| } |
| } |
| return super.emitCompare(cmpKind, localA, localB); |
| } |
| |
| @Override |
| public Value emitCompress(Value pointer, CompressEncoding encoding, boolean nonNull) { |
| LIRKind inputKind = pointer.getValueKind(LIRKind.class); |
| assert inputKind.getPlatformKind() == XWORD : inputKind; |
| if (inputKind.isReference(0)) { |
| // oop |
| Variable result = newVariable(LIRKind.compressedReference(WORD)); |
| append(new SPARCHotSpotMove.CompressPointer(result, asAllocatable(pointer), getProviders().getRegisters().getHeapBaseRegister().asValue(), encoding, nonNull)); |
| return result; |
| } else { |
| // metaspace pointer |
| Variable result = newVariable(LIRKind.value(WORD)); |
| AllocatableValue base = Value.ILLEGAL; |
| if (encoding.hasBase()) { |
| base = emitLoadConstant(LIRKind.value(XWORD), JavaConstant.forLong(encoding.getBase())); |
| } |
| append(new SPARCHotSpotMove.CompressPointer(result, asAllocatable(pointer), base, encoding, nonNull)); |
| return result; |
| } |
| } |
| |
| @Override |
| public Value emitUncompress(Value pointer, CompressEncoding encoding, boolean nonNull) { |
| LIRKind inputKind = pointer.getValueKind(LIRKind.class); |
| assert inputKind.getPlatformKind() == WORD; |
| if (inputKind.isReference(0)) { |
| // oop |
| Variable result = newVariable(LIRKind.reference(XWORD)); |
| append(new SPARCHotSpotMove.UncompressPointer(result, asAllocatable(pointer), getProviders().getRegisters().getHeapBaseRegister().asValue(), encoding, nonNull)); |
| return result; |
| } else { |
| // metaspace pointer |
| Variable result = newVariable(LIRKind.value(XWORD)); |
| AllocatableValue base = Value.ILLEGAL; |
| if (encoding.hasBase()) { |
| base = emitLoadConstant(LIRKind.value(XWORD), JavaConstant.forLong(encoding.getBase())); |
| } |
| append(new SPARCHotSpotMove.UncompressPointer(result, asAllocatable(pointer), base, encoding, nonNull)); |
| return result; |
| } |
| } |
| |
| /** |
| * @param savedRegisters the registers saved by this operation which may be subject to pruning |
| * @param savedRegisterLocations the slots to which the registers are saved |
| * @param supportsRemove determines if registers can be pruned |
| */ |
| protected SPARCSaveRegistersOp emitSaveRegisters(Register[] savedRegisters, AllocatableValue[] savedRegisterLocations, boolean supportsRemove) { |
| SPARCSaveRegistersOp save = new SPARCSaveRegistersOp(savedRegisters, savedRegisterLocations, supportsRemove); |
| append(save); |
| return save; |
| } |
| |
| @Override |
| public void emitNullCheck(Value address, LIRFrameState state) { |
| PlatformKind kind = address.getPlatformKind(); |
| if (kind == WORD) { |
| CompressEncoding encoding = config.getOopEncoding(); |
| Value uncompressed = emitUncompress(address, encoding, false); |
| append(new NullCheckOp(asAddressValue(uncompressed), state)); |
| } else { |
| super.emitNullCheck(address, state); |
| } |
| } |
| |
| @Override |
| public LIRInstruction createBenchmarkCounter(String name, String group, Value increment) { |
| if (BenchmarkCounters.enabled) { |
| return new SPARCHotSpotCounterOp(name, group, increment, getProviders().getRegisters(), config); |
| } |
| throw GraalError.shouldNotReachHere("BenchmarkCounters are not enabled!"); |
| } |
| |
| @Override |
| public LIRInstruction createMultiBenchmarkCounter(String[] names, String[] groups, Value[] increments) { |
| if (BenchmarkCounters.enabled) { |
| return new SPARCHotSpotCounterOp(names, groups, increments, getProviders().getRegisters(), config); |
| } |
| throw GraalError.shouldNotReachHere("BenchmarkCounters are not enabled!"); |
| } |
| |
| public AllocatableValue getSafepointAddressValue() { |
| if (this.safepointAddressValue == null) { |
| this.safepointAddressValue = SPARCHotSpotSafepointOp.getSafepointAddressValue(this); |
| } |
| return this.safepointAddressValue; |
| } |
| |
| @Override |
| protected StrategySwitchOp createStrategySwitchOp(AllocatableValue base, SwitchStrategy strategy, LabelRef[] keyTargets, LabelRef defaultTarget, Variable key, Variable scratchValue) { |
| return new SPARCHotSpotStrategySwitchOp(base, strategy, keyTargets, defaultTarget, key, scratchValue); |
| } |
| |
| public void setDebugInfoBuilder(HotSpotDebugInfoBuilder debugInfoBuilder) { |
| this.debugInfoBuilder = debugInfoBuilder; |
| } |
| |
| @Override |
| public SaveRegistersOp createZapRegisters(Register[] zappedRegisters, JavaConstant[] zapValues) { |
| throw GraalError.unimplemented(); |
| } |
| |
| @Override |
| public LIRInstruction createZapArgumentSpace(StackSlot[] zappedStack, JavaConstant[] zapValues) { |
| throw GraalError.unimplemented(); |
| } |
| } |
