1 /* 2 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.hotspot.aarch64; 24 25 import static org.graalvm.compiler.hotspot.HotSpotBackend.EXCEPTION_HANDLER_IN_CALLER; 26 import static jdk.vm.ci.aarch64.AArch64.lr; 27 import static jdk.vm.ci.code.ValueUtil.isStackSlot; 28 import static jdk.vm.ci.hotspot.aarch64.AArch64HotSpotRegisterConfig.fp; 29 import static jdk.vm.ci.hotspot.aarch64.AArch64HotSpotRegisterConfig.inlineCacheRegister; 30 import static jdk.vm.ci.hotspot.aarch64.AArch64HotSpotRegisterConfig.metaspaceMethodRegister; 31 32 import org.graalvm.compiler.core.aarch64.AArch64NodeLIRBuilder; 33 import org.graalvm.compiler.core.aarch64.AArch64NodeMatchRules; 34 import org.graalvm.compiler.core.common.LIRKind; 35 import org.graalvm.compiler.core.common.spi.ForeignCallLinkage; 36 import org.graalvm.compiler.core.gen.DebugInfoBuilder; 37 import org.graalvm.compiler.debug.Debug; 38 import org.graalvm.compiler.hotspot.HotSpotDebugInfoBuilder; 39 import org.graalvm.compiler.hotspot.HotSpotLIRGenerator; 40 import org.graalvm.compiler.hotspot.HotSpotLockStack; 41 import org.graalvm.compiler.hotspot.HotSpotNodeLIRBuilder; 42 import org.graalvm.compiler.hotspot.nodes.DirectCompareAndSwapNode; 43 import org.graalvm.compiler.hotspot.nodes.HotSpotDirectCallTargetNode; 44 import org.graalvm.compiler.hotspot.nodes.HotSpotIndirectCallTargetNode; 45 import org.graalvm.compiler.lir.LIRFrameState; 46 import org.graalvm.compiler.lir.Variable; 47 import org.graalvm.compiler.lir.aarch64.AArch64BreakpointOp; 48 import org.graalvm.compiler.lir.aarch64.AArch64Move.CompareAndSwapOp; 49 import org.graalvm.compiler.lir.gen.LIRGeneratorTool; 50 import org.graalvm.compiler.nodes.BreakpointNode; 51 import org.graalvm.compiler.nodes.CallTargetNode.InvokeKind; 52 import org.graalvm.compiler.nodes.DirectCallTargetNode; 53 import org.graalvm.compiler.nodes.FullInfopointNode; 54 import org.graalvm.compiler.nodes.IndirectCallTargetNode; 55 import org.graalvm.compiler.nodes.ParameterNode; 56 import org.graalvm.compiler.nodes.SafepointNode; 57 import org.graalvm.compiler.nodes.StructuredGraph; 58 import org.graalvm.compiler.nodes.ValueNode; 59 import org.graalvm.compiler.nodes.spi.NodeValueMap; 60 61 import jdk.vm.ci.aarch64.AArch64Kind; 62 import jdk.vm.ci.code.BytecodeFrame; 63 import jdk.vm.ci.code.CallingConvention; 64 import jdk.vm.ci.code.Register; 65 import jdk.vm.ci.code.RegisterValue; 66 import jdk.vm.ci.code.StackSlot; 67 import jdk.vm.ci.code.ValueUtil; 68 import jdk.vm.ci.hotspot.HotSpotCallingConventionType; 69 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; 70 import jdk.vm.ci.meta.AllocatableValue; 71 import jdk.vm.ci.meta.JavaType; 72 import jdk.vm.ci.meta.Value; 73 import jdk.vm.ci.meta.ValueKind; 74 75 /** 76 * LIR generator specialized for AArch64 HotSpot. 77 */ 78 public class AArch64HotSpotNodeLIRBuilder extends AArch64NodeLIRBuilder implements HotSpotNodeLIRBuilder { 79 80 public AArch64HotSpotNodeLIRBuilder(StructuredGraph graph, LIRGeneratorTool gen, AArch64NodeMatchRules nodeMatchRules) { 81 super(graph, gen, nodeMatchRules); 82 assert gen instanceof AArch64HotSpotLIRGenerator; 83 assert getDebugInfoBuilder() instanceof HotSpotDebugInfoBuilder; 84 ((AArch64HotSpotLIRGenerator) gen).setDebugInfoBuilder(((HotSpotDebugInfoBuilder) getDebugInfoBuilder())); 85 } 86 87 @Override 88 protected DebugInfoBuilder createDebugInfoBuilder(StructuredGraph graph, NodeValueMap nodeValueMap) { 89 HotSpotLockStack lockStack = new HotSpotLockStack(gen.getResult().getFrameMapBuilder(), LIRKind.value(AArch64Kind.QWORD)); 90 return new HotSpotDebugInfoBuilder(nodeValueMap, lockStack, (HotSpotLIRGenerator) gen); 91 } 92 93 private AArch64HotSpotLIRGenerator getGen() { 94 return (AArch64HotSpotLIRGenerator) gen; 95 } 96 97 @Override 98 protected void emitPrologue(StructuredGraph graph) { 99 CallingConvention incomingArguments = gen.getResult().getCallingConvention(); 100 Value[] params = new Value[incomingArguments.getArgumentCount() + 2]; 101 for (int i = 0; i < incomingArguments.getArgumentCount(); i++) { 102 params[i] = incomingArguments.getArgument(i); 103 if (isStackSlot(params[i])) { 104 StackSlot slot = ValueUtil.asStackSlot(params[i]); 105 if (slot.isInCallerFrame() && !gen.getResult().getLIR().hasArgInCallerFrame()) { 106 gen.getResult().getLIR().setHasArgInCallerFrame(); 107 } 108 } 109 } 110 params[params.length - 2] = fp.asValue(LIRKind.value(AArch64Kind.QWORD)); 111 params[params.length - 1] = lr.asValue(LIRKind.value(AArch64Kind.QWORD)); 112 113 gen.emitIncomingValues(params); 114 115 for (ParameterNode param : graph.getNodes(ParameterNode.TYPE)) { 116 Value paramValue = params[param.index()]; 117 assert paramValue.getValueKind().equals(getLIRGeneratorTool().getLIRKind(param.stamp())) : paramValue.getValueKind() + " != " + param.stamp(); 118 setResult(param, gen.emitMove(paramValue)); 119 } 120 } 121 122 @Override 123 public void visitSafepointNode(SafepointNode i) { 124 LIRFrameState info = state(i); 125 Variable scratch = gen.newVariable(LIRKind.value(getGen().target().arch.getWordKind())); 126 append(new AArch64HotSpotSafepointOp(info, getGen().config, scratch)); 127 } 128 129 @Override 130 protected void emitDirectCall(DirectCallTargetNode callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState callState) { 131 InvokeKind invokeKind = ((HotSpotDirectCallTargetNode) callTarget).invokeKind(); 132 if (invokeKind.isIndirect()) { 133 append(new AArch64HotSpotDirectVirtualCallOp(callTarget.targetMethod(), result, parameters, temps, callState, invokeKind, getGen().config)); 134 } else { 135 assert invokeKind.isDirect(); 136 HotSpotResolvedJavaMethod resolvedMethod = (HotSpotResolvedJavaMethod) callTarget.targetMethod(); 137 assert resolvedMethod.isConcrete() : "Cannot make direct call to abstract method."; 138 append(new AArch64HotSpotDirectStaticCallOp(callTarget.targetMethod(), result, parameters, temps, callState, invokeKind, getGen().config)); 139 } 140 } 141 142 @Override 143 protected void emitIndirectCall(IndirectCallTargetNode callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState callState) { 144 Value metaspaceMethodSrc = operand(((HotSpotIndirectCallTargetNode) callTarget).metaspaceMethod()); 145 Value targetAddressSrc = operand(callTarget.computedAddress()); 146 AllocatableValue metaspaceMethodDst = metaspaceMethodRegister.asValue(metaspaceMethodSrc.getValueKind()); 147 AllocatableValue targetAddressDst = inlineCacheRegister.asValue(targetAddressSrc.getValueKind()); 148 gen.emitMove(metaspaceMethodDst, metaspaceMethodSrc); 149 gen.emitMove(targetAddressDst, targetAddressSrc); 150 append(new AArch64IndirectCallOp(callTarget.targetMethod(), result, parameters, temps, metaspaceMethodDst, targetAddressDst, callState, getGen().config)); 151 } 152 153 @Override 154 public void emitPatchReturnAddress(ValueNode address) { 155 append(new AArch64HotSpotPatchReturnAddressOp(gen.load(operand(address)))); 156 } 157 158 @Override 159 public void emitJumpToExceptionHandlerInCaller(ValueNode handlerInCallerPc, ValueNode exception, ValueNode exceptionPc) { 160 Variable handler = gen.load(operand(handlerInCallerPc)); 161 ForeignCallLinkage linkage = gen.getForeignCalls().lookupForeignCall(EXCEPTION_HANDLER_IN_CALLER); 162 CallingConvention outgoingCc = linkage.getOutgoingCallingConvention(); 163 assert outgoingCc.getArgumentCount() == 2; 164 RegisterValue exceptionFixed = (RegisterValue) outgoingCc.getArgument(0); 165 RegisterValue exceptionPcFixed = (RegisterValue) outgoingCc.getArgument(1); 166 gen.emitMove(exceptionFixed, operand(exception)); 167 gen.emitMove(exceptionPcFixed, operand(exceptionPc)); 168 Register thread = getGen().getProviders().getRegisters().getThreadRegister(); 169 AArch64HotSpotJumpToExceptionHandlerInCallerOp op = new AArch64HotSpotJumpToExceptionHandlerInCallerOp(handler, exceptionFixed, exceptionPcFixed, 170 getGen().config.threadIsMethodHandleReturnOffset, thread, getGen().config); 171 append(op); 172 } 173 174 @Override 175 public void visitFullInfopointNode(FullInfopointNode i) { 176 if (i.getState() != null && i.getState().bci == BytecodeFrame.AFTER_BCI) { 177 Debug.log("Ignoring InfopointNode for AFTER_BCI"); 178 } else { 179 super.visitFullInfopointNode(i); 180 } 181 } 182 183 @Override 184 public void visitDirectCompareAndSwap(DirectCompareAndSwapNode x) { 185 AllocatableValue address = gen.asAllocatable(operand(x.getAddress())); 186 AllocatableValue cmpValue = gen.asAllocatable(operand(x.expectedValue())); 187 AllocatableValue newValue = gen.asAllocatable(operand(x.newValue())); 188 ValueKind<?> kind = cmpValue.getValueKind(); 189 assert kind.equals(newValue.getValueKind()); 190 191 Variable result = gen.newVariable(newValue.getValueKind()); 192 Variable scratch = gen.newVariable(LIRKind.value(AArch64Kind.DWORD)); 193 append(new CompareAndSwapOp(result, cmpValue, newValue, address, scratch)); 194 setResult(x, result); 195 } 196 197 @Override 198 public void visitBreakpointNode(BreakpointNode node) { 199 JavaType[] sig = new JavaType[node.arguments().size()]; 200 for (int i = 0; i < sig.length; i++) { 201 sig[i] = node.arguments().get(i).stamp().javaType(gen.getMetaAccess()); 202 } 203 204 Value[] parameters = visitInvokeArguments(gen.getResult().getFrameMapBuilder().getRegisterConfig().getCallingConvention(HotSpotCallingConventionType.JavaCall, null, sig, gen), 205 node.arguments()); 206 append(new AArch64BreakpointOp(parameters)); 207 } 208 }