1 /*
2 * Copyright (c) 2012, 2015, 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.amd64;
24
25 import static jdk.vm.ci.amd64.AMD64.rbp;
26 import static jdk.vm.ci.code.ValueUtil.isStackSlot;
27 import static org.graalvm.compiler.hotspot.HotSpotBackend.EXCEPTION_HANDLER_IN_CALLER;
28
29 import org.graalvm.compiler.core.amd64.AMD64NodeLIRBuilder;
30 import org.graalvm.compiler.core.amd64.AMD64NodeMatchRules;
31 import org.graalvm.compiler.core.common.LIRKind;
32 import org.graalvm.compiler.core.common.spi.ForeignCallLinkage;
33 import org.graalvm.compiler.core.gen.DebugInfoBuilder;
34 import org.graalvm.compiler.hotspot.HotSpotDebugInfoBuilder;
35 import org.graalvm.compiler.hotspot.HotSpotLIRGenerator;
36 import org.graalvm.compiler.hotspot.HotSpotLockStack;
37 import org.graalvm.compiler.hotspot.HotSpotNodeLIRBuilder;
38 import org.graalvm.compiler.hotspot.nodes.HotSpotDirectCallTargetNode;
39 import org.graalvm.compiler.hotspot.nodes.HotSpotIndirectCallTargetNode;
40 import org.graalvm.compiler.lir.LIRFrameState;
41 import org.graalvm.compiler.lir.Variable;
42 import org.graalvm.compiler.lir.amd64.AMD64BreakpointOp;
43 import org.graalvm.compiler.lir.gen.LIRGeneratorTool;
44 import org.graalvm.compiler.nodes.BreakpointNode;
45 import org.graalvm.compiler.nodes.CallTargetNode.InvokeKind;
46 import org.graalvm.compiler.nodes.DirectCallTargetNode;
47 import org.graalvm.compiler.nodes.FullInfopointNode;
48 import org.graalvm.compiler.nodes.IndirectCallTargetNode;
49 import org.graalvm.compiler.nodes.ParameterNode;
50 import org.graalvm.compiler.nodes.SafepointNode;
51 import org.graalvm.compiler.nodes.StructuredGraph;
52 import org.graalvm.compiler.nodes.ValueNode;
53 import org.graalvm.compiler.nodes.spi.NodeValueMap;
54
55 import jdk.vm.ci.amd64.AMD64;
56 import jdk.vm.ci.amd64.AMD64Kind;
57 import jdk.vm.ci.code.BytecodeFrame;
58 import jdk.vm.ci.code.CallingConvention;
59 import jdk.vm.ci.code.Register;
60 import jdk.vm.ci.code.RegisterValue;
61 import jdk.vm.ci.code.StackSlot;
62 import jdk.vm.ci.code.ValueUtil;
63 import jdk.vm.ci.hotspot.HotSpotCallingConventionType;
64 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
65 import jdk.vm.ci.meta.AllocatableValue;
66 import jdk.vm.ci.meta.JavaType;
67 import jdk.vm.ci.meta.Value;
68
69 /**
70 * LIR generator specialized for AMD64 HotSpot.
71 */
72 public class AMD64HotSpotNodeLIRBuilder extends AMD64NodeLIRBuilder implements HotSpotNodeLIRBuilder {
73
74 public AMD64HotSpotNodeLIRBuilder(StructuredGraph graph, LIRGeneratorTool gen, AMD64NodeMatchRules nodeMatchRules) {
75 super(graph, gen, nodeMatchRules);
76 assert gen instanceof AMD64HotSpotLIRGenerator;
77 assert getDebugInfoBuilder() instanceof HotSpotDebugInfoBuilder;
78 ((AMD64HotSpotLIRGenerator) gen).setDebugInfoBuilder(((HotSpotDebugInfoBuilder) getDebugInfoBuilder()));
79 }
80
81 private AMD64HotSpotLIRGenerator getGen() {
82 return (AMD64HotSpotLIRGenerator) gen;
83 }
84
85 @Override
86 protected DebugInfoBuilder createDebugInfoBuilder(StructuredGraph graph, NodeValueMap nodeValueMap) {
87 HotSpotLockStack lockStack = new HotSpotLockStack(gen.getResult().getFrameMapBuilder(), LIRKind.value(AMD64Kind.QWORD));
88 return new HotSpotDebugInfoBuilder(nodeValueMap, lockStack, (HotSpotLIRGenerator) gen);
89 }
90
91 @Override
92 protected void emitPrologue(StructuredGraph graph) {
93
94 CallingConvention incomingArguments = gen.getResult().getCallingConvention();
95
96 Value[] params = new Value[incomingArguments.getArgumentCount() + 1];
97 for (int i = 0; i < params.length - 1; i++) {
98 params[i] = incomingArguments.getArgument(i);
99 if (isStackSlot(params[i])) {
100 StackSlot slot = ValueUtil.asStackSlot(params[i]);
101 if (slot.isInCallerFrame() && !gen.getResult().getLIR().hasArgInCallerFrame()) {
102 gen.getResult().getLIR().setHasArgInCallerFrame();
103 }
104 }
105 }
106 params[params.length - 1] = rbp.asValue(LIRKind.value(AMD64Kind.QWORD));
107
108 gen.emitIncomingValues(params);
109
110 getGen().emitSaveRbp();
111
112 getGen().append(((HotSpotDebugInfoBuilder) getDebugInfoBuilder()).lockStack());
113
114 for (ParameterNode param : graph.getNodes(ParameterNode.TYPE)) {
115 Value paramValue = params[param.index()];
116 assert paramValue.getValueKind().equals(getLIRGeneratorTool().getLIRKind(param.stamp())) : paramValue.getValueKind() + " != " + param.stamp();
117 setResult(param, gen.emitMove(paramValue));
118 }
119 }
120
121 @Override
122 public void visitSafepointNode(SafepointNode i) {
123 LIRFrameState info = state(i);
124 append(new AMD64HotSpotSafepointOp(info, getGen().config, this));
125 }
126
127 @Override
128 protected void emitDirectCall(DirectCallTargetNode callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState callState) {
129 InvokeKind invokeKind = ((HotSpotDirectCallTargetNode) callTarget).invokeKind();
130 if (invokeKind.isIndirect()) {
131 append(new AMD64HotspotDirectVirtualCallOp(callTarget.targetMethod(), result, parameters, temps, callState, invokeKind, getGen().config));
132 } else {
133 assert invokeKind.isDirect();
134 HotSpotResolvedJavaMethod resolvedMethod = (HotSpotResolvedJavaMethod) callTarget.targetMethod();
135 assert resolvedMethod.isConcrete() : "Cannot make direct call to abstract method.";
136 append(new AMD64HotSpotDirectStaticCallOp(callTarget.targetMethod(), result, parameters, temps, callState, invokeKind, getGen().config));
137 }
138 }
139
140 @Override
141 protected void emitIndirectCall(IndirectCallTargetNode callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState callState) {
142 if (callTarget instanceof HotSpotIndirectCallTargetNode) {
143 Value metaspaceMethodSrc = operand(((HotSpotIndirectCallTargetNode) callTarget).metaspaceMethod());
144 Value targetAddressSrc = operand(callTarget.computedAddress());
145 AllocatableValue metaspaceMethodDst = AMD64.rbx.asValue(metaspaceMethodSrc.getValueKind());
146 AllocatableValue targetAddressDst = AMD64.rax.asValue(targetAddressSrc.getValueKind());
147 gen.emitMove(metaspaceMethodDst, metaspaceMethodSrc);
148 gen.emitMove(targetAddressDst, targetAddressSrc);
149 append(new AMD64IndirectCallOp(callTarget.targetMethod(), result, parameters, temps, metaspaceMethodDst, targetAddressDst, callState, getGen().config));
150 } else {
151 super.emitIndirectCall(callTarget, result, parameters, temps, callState);
152 }
153 }
154
155 @Override
156 public void emitPatchReturnAddress(ValueNode address) {
157 append(new AMD64HotSpotPatchReturnAddressOp(gen.load(operand(address))));
158 }
159
160 @Override
161 public void emitJumpToExceptionHandlerInCaller(ValueNode handlerInCallerPc, ValueNode exception, ValueNode exceptionPc) {
162 Variable handler = gen.load(operand(handlerInCallerPc));
163 ForeignCallLinkage linkage = gen.getForeignCalls().lookupForeignCall(EXCEPTION_HANDLER_IN_CALLER);
164 CallingConvention outgoingCc = linkage.getOutgoingCallingConvention();
165 assert outgoingCc.getArgumentCount() == 2;
166 RegisterValue exceptionFixed = (RegisterValue) outgoingCc.getArgument(0);
167 RegisterValue exceptionPcFixed = (RegisterValue) outgoingCc.getArgument(1);
168 gen.emitMove(exceptionFixed, operand(exception));
169 gen.emitMove(exceptionPcFixed, operand(exceptionPc));
170 Register thread = getGen().getProviders().getRegisters().getThreadRegister();
171 AMD64HotSpotJumpToExceptionHandlerInCallerOp op = new AMD64HotSpotJumpToExceptionHandlerInCallerOp(handler, exceptionFixed, exceptionPcFixed, getGen().config.threadIsMethodHandleReturnOffset,
172 thread);
173 append(op);
174 }
175
176 @Override
177 public void visitFullInfopointNode(FullInfopointNode i) {
178 if (i.getState() != null && i.getState().bci == BytecodeFrame.AFTER_BCI) {
179 i.getDebug().log("Ignoring InfopointNode for AFTER_BCI");
180 } else {
181 super.visitFullInfopointNode(i);
182 }
183 }
184
185 @Override
186 public void visitBreakpointNode(BreakpointNode node) {
187 JavaType[] sig = new JavaType[node.arguments().size()];
188 for (int i = 0; i < sig.length; i++) {
189 sig[i] = node.arguments().get(i).stamp().javaType(gen.getMetaAccess());
190 }
191
192 Value[] parameters = visitInvokeArguments(gen.getResult().getFrameMapBuilder().getRegisterConfig().getCallingConvention(HotSpotCallingConventionType.JavaCall, null, sig, gen),
193 node.arguments());
194 append(new AMD64BreakpointOp(parameters));
195 }
196 }