Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.hotspot.sparc/src/com/oracle/graal/hotspot/sparc/SPARCHotSpotLIRGenerator.java @ 13520:fb7b39f07232
Embed compressed constants when possible and use more efficient patterns for encoding
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
---|---|
date | Mon, 06 Jan 2014 17:19:18 -0800 |
parents | 01fd11e44f73 |
children | 5a9afbf72714 |
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/* * Copyright (c) 2013, 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.sparc; import static com.oracle.graal.api.code.ValueUtil.*; import static com.oracle.graal.hotspot.HotSpotBackend.*; import static com.oracle.graal.hotspot.HotSpotGraalRuntime.*; import static com.oracle.graal.sparc.SPARC.*; import java.lang.reflect.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.gen.*; import com.oracle.graal.compiler.sparc.*; import com.oracle.graal.graph.*; import com.oracle.graal.hotspot.*; import com.oracle.graal.hotspot.meta.*; import com.oracle.graal.hotspot.nodes.*; import com.oracle.graal.hotspot.stubs.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.sparc.*; import com.oracle.graal.lir.sparc.SPARCMove.CompareAndSwapOp; import com.oracle.graal.lir.sparc.SPARCMove.LoadOp; import com.oracle.graal.lir.sparc.SPARCMove.StoreConstantOp; import com.oracle.graal.lir.sparc.SPARCMove.StoreOp; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.extended.*; import com.oracle.graal.nodes.java.MethodCallTargetNode.InvokeKind; public class SPARCHotSpotLIRGenerator extends SPARCLIRGenerator implements HotSpotLIRGenerator { private final HotSpotVMConfig config; public SPARCHotSpotLIRGenerator(StructuredGraph graph, HotSpotProviders providers, HotSpotVMConfig config, FrameMap frameMap, CallingConvention cc, LIR lir) { super(graph, providers, frameMap, cc, lir); 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. */ StackSlot deoptimizationRescueSlot; @SuppressWarnings("hiding") @Override protected DebugInfoBuilder createDebugInfoBuilder(NodeMap<Value> nodeOperands) { assert config.basicLockSize == 8; HotSpotLockStack lockStack = new HotSpotLockStack(frameMap, Kind.Long); return new HotSpotDebugInfoBuilder(nodeOperands, lockStack); } @Override public StackSlot getLockSlot(int lockDepth) { return ((HotSpotDebugInfoBuilder) debugInfoBuilder).lockStack().makeLockSlot(lockDepth); } @Override protected boolean needOnlyOopMaps() { // Stubs only need oop maps return graph.start() instanceof StubStartNode; } Stub getStub() { if (graph.start() instanceof StubStartNode) { return ((StubStartNode) graph.start()).getStub(); } return null; } @Override public Variable emitForeignCall(ForeignCallLinkage linkage, DeoptimizingNode info, Value... args) { Variable result; if (linkage.canDeoptimize()) { assert info != null; HotSpotRegistersProvider registers = getProviders().getRegisters(); Register thread = registers.getThreadRegister(); Register stackPointer = registers.getStackPointerRegister(); append(new SPARCHotSpotCRuntimeCallPrologueOp(config.threadLastJavaSpOffset(), thread, stackPointer)); result = super.emitForeignCall(linkage, info, args); append(new SPARCHotSpotCRuntimeCallEpilogueOp(config.threadLastJavaSpOffset(), config.threadLastJavaPcOffset(), config.threadJavaFrameAnchorFlagsOffset(), thread)); } else { result = super.emitForeignCall(linkage, null, args); } return result; } @Override protected void emitReturn(Value input) { append(new SPARCHotSpotReturnOp(input, getStub() != null)); } @Override public void visitSafepointNode(SafepointNode i) { LIRFrameState info = state(i); append(new SPARCHotSpotSafepointOp(info, config, this)); } @Override public void visitDirectCompareAndSwap(DirectCompareAndSwapNode x) { Kind kind = x.newValue().kind(); assert kind == x.expectedValue().kind(); Variable address = load(operand(x.object())); Value offset = operand(x.offset()); Variable cmpValue = (Variable) loadNonConst(operand(x.expectedValue())); Variable newValue = load(operand(x.newValue())); if (ValueUtil.isConstant(offset)) { assert !getCodeCache().needsDataPatch(asConstant(offset)); Variable longAddress = newVariable(Kind.Long); emitMove(longAddress, address); address = emitAdd(longAddress, asConstant(offset)); } else { if (isLegal(offset)) { address = emitAdd(address, offset); } } append(new CompareAndSwapOp(address, cmpValue, newValue)); Variable result = newVariable(x.kind()); emitMove(result, newValue); setResult(x, result); } @Override public void emitTailcall(Value[] args, Value address) { // append(new AMD64TailcallOp(args, address)); throw GraalInternalError.unimplemented(); } @Override protected void emitDirectCall(DirectCallTargetNode callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState callState) { InvokeKind invokeKind = ((HotSpotDirectCallTargetNode) callTarget).invokeKind(); if (invokeKind == InvokeKind.Interface || invokeKind == InvokeKind.Virtual) { append(new SPARCHotspotDirectVirtualCallOp(callTarget.target(), result, parameters, temps, callState, invokeKind)); } else { assert invokeKind == InvokeKind.Static || invokeKind == InvokeKind.Special; HotSpotResolvedJavaMethod resolvedMethod = (HotSpotResolvedJavaMethod) callTarget.target(); assert !Modifier.isAbstract(resolvedMethod.getModifiers()) : "Cannot make direct call to abstract method."; Constant metaspaceMethod = resolvedMethod.getMetaspaceMethodConstant(); append(new SPARCHotspotDirectStaticCallOp(callTarget.target(), result, parameters, temps, callState, invokeKind, metaspaceMethod)); } } @Override protected void emitIndirectCall(IndirectCallTargetNode callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState callState) { AllocatableValue metaspaceMethod = g5.asValue(); emitMove(metaspaceMethod, operand(((HotSpotIndirectCallTargetNode) callTarget).metaspaceMethod())); AllocatableValue targetAddress = g3.asValue(); emitMove(targetAddress, operand(callTarget.computedAddress())); append(new SPARCIndirectCallOp(callTarget.target(), result, parameters, temps, metaspaceMethod, targetAddress, callState)); } @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 moveDeoptimizationActionAndReasonToThread(Value actionAndReason) { int pendingDeoptimizationOffset = runtime().getConfig().pendingDeoptimizationOffset; Kind wordKind = getProviders().getCodeCache().getTarget().wordKind; RegisterValue thread = getProviders().getRegisters().getThreadRegister().asValue(wordKind); SPARCAddressValue pendingDeoptAddress = new SPARCAddressValue(actionAndReason.getKind(), thread, pendingDeoptimizationOffset); append(new StoreOp(actionAndReason.getKind(), pendingDeoptAddress, emitMove(actionAndReason), null)); } @Override public void emitDeoptimize(Value actionAndReason, DeoptimizingNode deopting) { moveDeoptimizationActionAndReasonToThread(actionAndReason); append(new SPARCDeoptimizeOp(state(deopting))); } @Override public void emitDeoptimizeCaller(DeoptimizationAction action, DeoptimizationReason reason) { moveDeoptimizationActionAndReasonToThread(getMetaAccess().encodeDeoptActionAndReason(action, reason, 0)); append(new SPARCHotSpotDeoptimizeCallerOp()); } @Override public void emitPatchReturnAddress(ValueNode address) { append(new SPARCHotSpotPatchReturnAddressOp(load(operand(address)))); } @Override public void emitJumpToExceptionHandlerInCaller(ValueNode handlerInCallerPc, ValueNode exception, ValueNode exceptionPc) { Variable handler = load(operand(handlerInCallerPc)); ForeignCallLinkage linkage = getForeignCalls().lookupForeignCall(EXCEPTION_HANDLER_IN_CALLER); CallingConvention linkageCc = linkage.getOutgoingCallingConvention(); assert linkageCc.getArgumentCount() == 2; RegisterValue exceptionFixed = (RegisterValue) linkageCc.getArgument(0); RegisterValue exceptionPcFixed = (RegisterValue) linkageCc.getArgument(1); emitMove(exceptionFixed, operand(exception)); emitMove(exceptionPcFixed, operand(exceptionPc)); Register thread = getProviders().getRegisters().getThreadRegister(); SPARCHotSpotJumpToExceptionHandlerInCallerOp op = new SPARCHotSpotJumpToExceptionHandlerInCallerOp(handler, exceptionFixed, exceptionPcFixed, config.threadIsMethodHandleReturnOffset, thread); append(op); } private static boolean isCompressCandidate(Access access) { return access != null && access.isCompressible(); } @Override public Variable emitLoad(Kind kind, Value address, Access access) { SPARCAddressValue loadAddress = asAddressValue(address); Variable result = newVariable(kind); LIRFrameState state = null; if (access instanceof DeoptimizingNode) { state = state((DeoptimizingNode) access); } if (isCompressCandidate(access)) { if (config.useCompressedOops && kind == Kind.Object) { // append(new LoadCompressedPointer(kind, result, loadAddress, access != null ? // state(access) : // null, config.narrowOopBase, config.narrowOopShift, // config.logMinObjAlignment)); throw GraalInternalError.unimplemented(); } else if (config.useCompressedClassPointers && kind == Kind.Long) { // append(new LoadCompressedPointer(kind, result, loadAddress, access != null ? // state(access) : // null, config.narrowKlassBase, config.narrowKlassShift, // config.logKlassAlignment)); throw GraalInternalError.unimplemented(); } else { append(new LoadOp(kind, result, loadAddress, state)); } } else { append(new LoadOp(kind, result, loadAddress, state)); } return result; } @Override public void emitStore(Kind kind, Value address, Value inputVal, Access access) { SPARCAddressValue storeAddress = asAddressValue(address); LIRFrameState state = null; if (access instanceof DeoptimizingNode) { state = state((DeoptimizingNode) access); } if (isConstant(inputVal)) { Constant c = asConstant(inputVal); if (canStoreConstant(c, isCompressCandidate(access))) { if (inputVal.getKind() == Kind.Object) { append(new StoreConstantOp(kind, storeAddress, c, state, config.useCompressedOops && isCompressCandidate(access))); } else if (inputVal.getKind() == Kind.Long) { append(new StoreConstantOp(kind, storeAddress, c, state, config.useCompressedClassPointers && isCompressCandidate(access))); } else { append(new StoreConstantOp(kind, storeAddress, c, state, false)); } return; } } Variable input = load(inputVal); if (isCompressCandidate(access)) { if (config.useCompressedOops && kind == Kind.Object) { // if (input.getKind() == Kind.Object) { // Variable scratch = newVariable(Kind.Long); // append(new StoreCompressedPointer(kind, storeAddress, input, scratch, state, // config.narrowOopBase, config.narrowOopShift, // config.logMinObjAlignment)); // } else { // // the input oop is already compressed // append(new StoreOp(input.getKind(), storeAddress, input, state)); // } throw GraalInternalError.unimplemented(); } else if (config.useCompressedClassPointers && kind == Kind.Long) { // Variable scratch = newVariable(Kind.Long); // append(new StoreCompressedPointer(kind, storeAddress, input, scratch, state, // config.narrowKlassBase, config.narrowKlassShift, // config.logKlassAlignment)); throw GraalInternalError.unimplemented(); } else { append(new StoreOp(kind, storeAddress, input, state)); } } else { append(new StoreOp(kind, storeAddress, input, state)); } } @Override public Value emitNot(Value input) { GraalInternalError.shouldNotReachHere("binary negation not implemented"); return null; } public void emitPrefetchAllocate(ValueNode address, ValueNode distance) { SPARCAddressValue addr = emitAddress(operand(address), 0, loadNonConst(operand(distance)), 1); append(new SPARCPrefetchOp(addr, config.allocatePrefetchInstr)); } }