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 org.graalvm.compiler.hotspot.HotSpotBackend.EXCEPTION_HANDLER_IN_CALLER;
26 import static jdk.vm.ci.amd64.AMD64.rbp;
27 import static jdk.vm.ci.code.ValueUtil.isStackSlot;
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.debug.Debug;
35 import org.graalvm.compiler.hotspot.HotSpotDebugInfoBuilder;
36 import org.graalvm.compiler.hotspot.HotSpotLIRGenerator;
37 import org.graalvm.compiler.hotspot.HotSpotLockStack;
38 import org.graalvm.compiler.hotspot.HotSpotNodeLIRBuilder;
39 import org.graalvm.compiler.hotspot.nodes.DirectCompareAndSwapNode;
40 import org.graalvm.compiler.hotspot.nodes.HotSpotDirectCallTargetNode;
41 import org.graalvm.compiler.hotspot.nodes.HotSpotIndirectCallTargetNode;
42 import org.graalvm.compiler.lir.LIRFrameState;
43 import org.graalvm.compiler.lir.Variable;
44 import org.graalvm.compiler.lir.amd64.AMD64BreakpointOp;
45 import org.graalvm.compiler.lir.amd64.AMD64Move.CompareAndSwapOp;
46 import org.graalvm.compiler.lir.gen.LIRGeneratorTool;
47 import org.graalvm.compiler.nodes.BreakpointNode;
48 import org.graalvm.compiler.nodes.CallTargetNode.InvokeKind;
49 import org.graalvm.compiler.nodes.DirectCallTargetNode;
50 import org.graalvm.compiler.nodes.FullInfopointNode;
51 import org.graalvm.compiler.nodes.IndirectCallTargetNode;
52 import org.graalvm.compiler.nodes.ParameterNode;
53 import org.graalvm.compiler.nodes.SafepointNode;
54 import org.graalvm.compiler.nodes.StructuredGraph;
55 import org.graalvm.compiler.nodes.ValueNode;
56 import org.graalvm.compiler.nodes.spi.NodeValueMap;
57
58 import jdk.vm.ci.amd64.AMD64;
59 import jdk.vm.ci.amd64.AMD64Kind;
60 import jdk.vm.ci.code.BytecodeFrame;
61 import jdk.vm.ci.code.CallingConvention;
62 import jdk.vm.ci.code.Register;
63 import jdk.vm.ci.code.RegisterValue;
64 import jdk.vm.ci.code.StackSlot;
65 import jdk.vm.ci.code.ValueUtil;
66 import jdk.vm.ci.hotspot.HotSpotCallingConventionType;
67 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
68 import jdk.vm.ci.meta.AllocatableValue;
69 import jdk.vm.ci.meta.JavaType;
70 import jdk.vm.ci.meta.Value;
71
72 /**
73 * LIR generator specialized for AMD64 HotSpot.
74 */
75 public class AMD64HotSpotNodeLIRBuilder extends AMD64NodeLIRBuilder implements HotSpotNodeLIRBuilder {
76
77 public AMD64HotSpotNodeLIRBuilder(StructuredGraph graph, LIRGeneratorTool gen, AMD64NodeMatchRules nodeMatchRules) {
78 super(graph, gen, nodeMatchRules);
79 assert gen instanceof AMD64HotSpotLIRGenerator;
80 assert getDebugInfoBuilder() instanceof HotSpotDebugInfoBuilder;
81 ((AMD64HotSpotLIRGenerator) gen).setDebugInfoBuilder(((HotSpotDebugInfoBuilder) getDebugInfoBuilder()));
82 }
83
84 private AMD64HotSpotLIRGenerator getGen() {
85 return (AMD64HotSpotLIRGenerator) gen;
86 }
87
88 @Override
89 protected DebugInfoBuilder createDebugInfoBuilder(StructuredGraph graph, NodeValueMap nodeValueMap) {
90 HotSpotLockStack lockStack = new HotSpotLockStack(gen.getResult().getFrameMapBuilder(), LIRKind.value(AMD64Kind.QWORD));
91 return new HotSpotDebugInfoBuilder(nodeValueMap, lockStack, (HotSpotLIRGenerator) gen);
92 }
93
94 @Override
95 protected void emitPrologue(StructuredGraph graph) {
96
97 CallingConvention incomingArguments = gen.getResult().getCallingConvention();
98
99 Value[] params = new Value[incomingArguments.getArgumentCount() + 1];
100 for (int i = 0; i < params.length - 1; i++) {
101 params[i] = incomingArguments.getArgument(i);
102 if (isStackSlot(params[i])) {
103 StackSlot slot = ValueUtil.asStackSlot(params[i]);
104 if (slot.isInCallerFrame() && !gen.getResult().getLIR().hasArgInCallerFrame()) {
105 gen.getResult().getLIR().setHasArgInCallerFrame();
106 }
107 }
108 }
109 params[params.length - 1] = rbp.asValue(LIRKind.value(AMD64Kind.QWORD));
110
111 gen.emitIncomingValues(params);
112
113 getGen().emitSaveRbp();
114
115 getGen().append(((HotSpotDebugInfoBuilder) getDebugInfoBuilder()).lockStack());
116
117 for (ParameterNode param : graph.getNodes(ParameterNode.TYPE)) {
118 Value paramValue = params[param.index()];
119 assert paramValue.getValueKind().equals(getLIRGeneratorTool().getLIRKind(param.stamp())) : paramValue.getValueKind() + " != " + param.stamp();
120 setResult(param, gen.emitMove(paramValue));
121 }
122 }
123
124 @Override
125 public void visitSafepointNode(SafepointNode i) {
126 LIRFrameState info = state(i);
127 append(new AMD64HotSpotSafepointOp(info, getGen().config, this));
128 }
129
130 @Override
131 protected void emitDirectCall(DirectCallTargetNode callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState callState) {
132 InvokeKind invokeKind = ((HotSpotDirectCallTargetNode) callTarget).invokeKind();
133 if (invokeKind.isIndirect()) {
134 append(new AMD64HotspotDirectVirtualCallOp(callTarget.targetMethod(), result, parameters, temps, callState, invokeKind, getGen().config));
135 } else {
136 assert invokeKind.isDirect();
137 HotSpotResolvedJavaMethod resolvedMethod = (HotSpotResolvedJavaMethod) callTarget.targetMethod();
138 assert resolvedMethod.isConcrete() : "Cannot make direct call to abstract method.";
139 append(new AMD64HotSpotDirectStaticCallOp(callTarget.targetMethod(), result, parameters, temps, callState, invokeKind, getGen().config));
140 }
141 }
142
143 @Override
144 protected void emitIndirectCall(IndirectCallTargetNode callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState callState) {
145 if (callTarget instanceof HotSpotIndirectCallTargetNode) {
146 Value metaspaceMethodSrc = operand(((HotSpotIndirectCallTargetNode) callTarget).metaspaceMethod());
147 Value targetAddressSrc = operand(callTarget.computedAddress());
148 AllocatableValue metaspaceMethodDst = AMD64.rbx.asValue(metaspaceMethodSrc.getValueKind());
149 AllocatableValue targetAddressDst = AMD64.rax.asValue(targetAddressSrc.getValueKind());
150 gen.emitMove(metaspaceMethodDst, metaspaceMethodSrc);
151 gen.emitMove(targetAddressDst, targetAddressSrc);
152 append(new AMD64IndirectCallOp(callTarget.targetMethod(), result, parameters, temps, metaspaceMethodDst, targetAddressDst, callState, getGen().config));
153 } else {
154 super.emitIndirectCall(callTarget, result, parameters, temps, callState);
155 }
156 }
157
158 @Override
159 public void emitPatchReturnAddress(ValueNode address) {
160 append(new AMD64HotSpotPatchReturnAddressOp(gen.load(operand(address))));
161 }
162
163 @Override
164 public void emitJumpToExceptionHandlerInCaller(ValueNode handlerInCallerPc, ValueNode exception, ValueNode exceptionPc) {
165 Variable handler = gen.load(operand(handlerInCallerPc));
166 ForeignCallLinkage linkage = gen.getForeignCalls().lookupForeignCall(EXCEPTION_HANDLER_IN_CALLER);
167 CallingConvention outgoingCc = linkage.getOutgoingCallingConvention();
168 assert outgoingCc.getArgumentCount() == 2;
169 RegisterValue exceptionFixed = (RegisterValue) outgoingCc.getArgument(0);
170 RegisterValue exceptionPcFixed = (RegisterValue) outgoingCc.getArgument(1);
171 gen.emitMove(exceptionFixed, operand(exception));
172 gen.emitMove(exceptionPcFixed, operand(exceptionPc));
173 Register thread = getGen().getProviders().getRegisters().getThreadRegister();
174 AMD64HotSpotJumpToExceptionHandlerInCallerOp op = new AMD64HotSpotJumpToExceptionHandlerInCallerOp(handler, exceptionFixed, exceptionPcFixed, getGen().config.threadIsMethodHandleReturnOffset,
175 thread);
176 append(op);
177 }
178
179 @Override
180 public void visitFullInfopointNode(FullInfopointNode i) {
181 if (i.getState() != null && i.getState().bci == BytecodeFrame.AFTER_BCI) {
182 Debug.log("Ignoring InfopointNode for AFTER_BCI");
183 } else {
184 super.visitFullInfopointNode(i);
185 }
186 }
187
188 @Override
189 public void visitDirectCompareAndSwap(DirectCompareAndSwapNode x) {
190 Value expected = gen.loadNonConst(operand(x.expectedValue()));
191 Variable newVal = gen.load(operand(x.newValue()));
192 assert expected.getValueKind().equals(newVal.getValueKind());
193
194 RegisterValue raxLocal = AMD64.rax.asValue(expected.getValueKind());
195 gen.emitMove(raxLocal, expected);
196 append(new CompareAndSwapOp((AMD64Kind) expected.getPlatformKind(), raxLocal, getGen().asAddressValue(operand(x.getAddress())), raxLocal, newVal));
197
198 setResult(x, gen.emitMove(raxLocal));
199 }
200
201 @Override
202 public void visitBreakpointNode(BreakpointNode node) {
203 JavaType[] sig = new JavaType[node.arguments().size()];
204 for (int i = 0; i < sig.length; i++) {
205 sig[i] = node.arguments().get(i).stamp().javaType(gen.getMetaAccess());
206 }
207
208 Value[] parameters = visitInvokeArguments(gen.getResult().getFrameMapBuilder().getRegisterConfig().getCallingConvention(HotSpotCallingConventionType.JavaCall, null, sig, gen),
209 node.arguments());
210 append(new AMD64BreakpointOp(parameters));
211 }
212 }