author | dlong |
Sat, 08 Dec 2018 00:56:10 -0800 | |
changeset 52910 | 583fd71c47d6 |
parent 51436 | 091c0d22e735 |
child 54084 | 84f10bbf993f |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
|
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
|
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
|
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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||
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package org.graalvm.compiler.hotspot.aarch64; |
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||
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import static java.lang.reflect.Modifier.isStatic; |
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import static jdk.vm.ci.aarch64.AArch64.lr; |
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import static jdk.vm.ci.aarch64.AArch64.r10; |
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import static jdk.vm.ci.aarch64.AArch64.sp; |
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import static jdk.vm.ci.aarch64.AArch64.zr; |
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import static jdk.vm.ci.code.ValueUtil.asRegister; |
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import static jdk.vm.ci.hotspot.aarch64.AArch64HotSpotRegisterConfig.fp; |
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import static org.graalvm.compiler.core.common.GraalOptions.GeneratePIC; |
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import static org.graalvm.compiler.core.common.GraalOptions.ZapStackOnMethodEntry; |
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|
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import jdk.internal.vm.compiler.collections.EconomicSet; |
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import org.graalvm.compiler.asm.Assembler; |
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import org.graalvm.compiler.asm.Label; |
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import org.graalvm.compiler.asm.aarch64.AArch64Address; |
|
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import org.graalvm.compiler.asm.aarch64.AArch64Assembler; |
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import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler; |
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import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler.ScratchRegister; |
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import org.graalvm.compiler.code.CompilationResult; |
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import org.graalvm.compiler.core.aarch64.AArch64NodeMatchRules; |
|
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import org.graalvm.compiler.core.common.CompilationIdentifier; |
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import org.graalvm.compiler.core.common.LIRKind; |
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import org.graalvm.compiler.core.common.alloc.RegisterAllocationConfig; |
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import org.graalvm.compiler.core.common.spi.ForeignCallLinkage; |
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48861 | 50 |
import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; |
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import org.graalvm.compiler.hotspot.HotSpotDataBuilder; |
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import org.graalvm.compiler.hotspot.HotSpotGraalRuntimeProvider; |
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import org.graalvm.compiler.hotspot.HotSpotHostBackend; |
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import org.graalvm.compiler.hotspot.HotSpotLIRGenerationResult; |
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import org.graalvm.compiler.hotspot.meta.HotSpotConstantLoadAction; |
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import org.graalvm.compiler.hotspot.meta.HotSpotForeignCallsProvider; |
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import org.graalvm.compiler.hotspot.meta.HotSpotProviders; |
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import org.graalvm.compiler.hotspot.stubs.Stub; |
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import org.graalvm.compiler.lir.LIR; |
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import org.graalvm.compiler.lir.aarch64.AArch64Call; |
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import org.graalvm.compiler.lir.aarch64.AArch64FrameMap; |
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import org.graalvm.compiler.lir.aarch64.AArch64FrameMapBuilder; |
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import org.graalvm.compiler.lir.asm.CompilationResultBuilder; |
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import org.graalvm.compiler.lir.asm.CompilationResultBuilderFactory; |
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import org.graalvm.compiler.lir.asm.DataBuilder; |
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import org.graalvm.compiler.lir.asm.FrameContext; |
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import org.graalvm.compiler.lir.framemap.FrameMap; |
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import org.graalvm.compiler.lir.framemap.FrameMapBuilder; |
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import org.graalvm.compiler.lir.gen.LIRGenerationResult; |
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import org.graalvm.compiler.lir.gen.LIRGeneratorTool; |
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import org.graalvm.compiler.nodes.StructuredGraph; |
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import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; |
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||
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import jdk.vm.ci.aarch64.AArch64Kind; |
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import jdk.vm.ci.code.CallingConvention; |
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import jdk.vm.ci.code.Register; |
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import jdk.vm.ci.code.RegisterConfig; |
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import jdk.vm.ci.code.StackSlot; |
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import jdk.vm.ci.hotspot.HotSpotCallingConventionType; |
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import jdk.vm.ci.hotspot.HotSpotSentinelConstant; |
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import jdk.vm.ci.hotspot.aarch64.AArch64HotSpotRegisterConfig; |
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import jdk.vm.ci.meta.JavaKind; |
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import jdk.vm.ci.meta.JavaType; |
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import jdk.vm.ci.meta.ResolvedJavaMethod; |
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||
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/** |
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* HotSpot AArch64 specific backend. |
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*/ |
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public class AArch64HotSpotBackend extends HotSpotHostBackend { |
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||
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public AArch64HotSpotBackend(GraalHotSpotVMConfig config, HotSpotGraalRuntimeProvider runtime, HotSpotProviders providers) { |
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super(config, runtime, providers); |
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} |
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||
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@Override |
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public FrameMapBuilder newFrameMapBuilder(RegisterConfig registerConfig) { |
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RegisterConfig registerConfigNonNull = registerConfig == null ? getCodeCache().getRegisterConfig() : registerConfig; |
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return new AArch64FrameMapBuilder(newFrameMap(registerConfigNonNull), getCodeCache(), registerConfigNonNull); |
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} |
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@Override |
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public FrameMap newFrameMap(RegisterConfig registerConfig) { |
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return new AArch64FrameMap(getCodeCache(), registerConfig, this); |
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} |
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||
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@Override |
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public LIRGeneratorTool newLIRGenerator(LIRGenerationResult lirGenRes) { |
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return new AArch64HotSpotLIRGenerator(getProviders(), config, lirGenRes); |
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} |
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@Override |
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public LIRGenerationResult newLIRGenerationResult(CompilationIdentifier compilationId, LIR lir, FrameMapBuilder frameMapBuilder, StructuredGraph graph, Object stub) { |
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a25c48c0a1ab
8181855: [Graal] runtime/ReservedStack/ReservedStackTest.java triggers: assert(thread->deopt_mark() == __null) failed: no stack overflow from deopt blob/uncommon trap
dlong
parents:
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diff
changeset
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return new HotSpotLIRGenerationResult(compilationId, lir, frameMapBuilder, makeCallingConvention(graph, (Stub) stub), stub, config.requiresReservedStackCheck(graph.getMethods())); |
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} |
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||
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@Override |
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public NodeLIRBuilderTool newNodeLIRBuilder(StructuredGraph graph, LIRGeneratorTool lirGen) { |
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return new AArch64HotSpotNodeLIRBuilder(graph, lirGen, new AArch64NodeMatchRules(lirGen)); |
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} |
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||
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@Override |
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protected void bangStackWithOffset(CompilationResultBuilder crb, int bangOffset) { |
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AArch64MacroAssembler masm = (AArch64MacroAssembler) crb.asm; |
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try (ScratchRegister sc = masm.getScratchRegister()) { |
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Register scratch = sc.getRegister(); |
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AArch64Address address = masm.makeAddress(sp, -bangOffset, scratch, 8, /* allowOverwrite */false); |
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masm.str(64, zr, address); |
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} |
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} |
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private class HotSpotFrameContext implements FrameContext { |
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final boolean isStub; |
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HotSpotFrameContext(boolean isStub) { |
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this.isStub = isStub; |
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} |
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@Override |
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public void enter(CompilationResultBuilder crb) { |
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FrameMap frameMap = crb.frameMap; |
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final int frameSize = frameMap.frameSize(); |
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final int totalFrameSize = frameMap.totalFrameSize(); |
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assert frameSize + 2 * crb.target.arch.getWordSize() == totalFrameSize : "total framesize should be framesize + 2 words"; |
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AArch64MacroAssembler masm = (AArch64MacroAssembler) crb.asm; |
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if (!isStub) { |
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emitStackOverflowCheck(crb); |
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} |
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crb.blockComment("[method prologue]"); |
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try (ScratchRegister sc = masm.getScratchRegister()) { |
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int wordSize = crb.target.arch.getWordSize(); |
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Register rscratch1 = sc.getRegister(); |
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assert totalFrameSize > 0; |
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if (frameSize < 1 << 9) { |
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43972 | 155 |
masm.sub(64, sp, sp, totalFrameSize); |
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masm.stp(64, fp, lr, AArch64Address.createScaledImmediateAddress(sp, frameSize / wordSize)); |
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} else { |
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masm.stp(64, fp, lr, AArch64Address.createPreIndexedImmediateAddress(sp, -2)); |
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if (frameSize < 1 << 12) { |
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masm.sub(64, sp, sp, totalFrameSize - 2 * wordSize); |
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} else { |
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masm.mov(rscratch1, totalFrameSize - 2 * wordSize); |
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masm.sub(64, sp, sp, rscratch1); |
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} |
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} |
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} |
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if (ZapStackOnMethodEntry.getValue(crb.getOptions())) { |
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try (ScratchRegister sc = masm.getScratchRegister()) { |
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Register scratch = sc.getRegister(); |
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int longSize = 8; |
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masm.mov(64, scratch, sp); |
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AArch64Address address = AArch64Address.createPostIndexedImmediateAddress(scratch, longSize); |
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try (ScratchRegister sc2 = masm.getScratchRegister()) { |
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Register value = sc2.getRegister(); |
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masm.mov(value, 0xBADDECAFFC0FFEEL); |
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for (int i = 0; i < frameSize; i += longSize) { |
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masm.str(64, value, address); |
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} |
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} |
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} |
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} |
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crb.blockComment("[code body]"); |
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} |
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@Override |
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public void leave(CompilationResultBuilder crb) { |
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AArch64MacroAssembler masm = (AArch64MacroAssembler) crb.asm; |
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FrameMap frameMap = crb.frameMap; |
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final int totalFrameSize = frameMap.totalFrameSize(); |
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||
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crb.blockComment("[method epilogue]"); |
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try (ScratchRegister sc = masm.getScratchRegister()) { |
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int wordSize = crb.target.arch.getWordSize(); |
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Register rscratch1 = sc.getRegister(); |
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final int frameSize = frameMap.frameSize(); |
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assert totalFrameSize > 0; |
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if (frameSize < 1 << 9) { |
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masm.ldp(64, fp, lr, AArch64Address.createScaledImmediateAddress(sp, frameSize / wordSize)); |
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masm.add(64, sp, sp, totalFrameSize); |
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} else { |
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if (frameSize < 1 << 12) { |
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masm.add(64, sp, sp, totalFrameSize - 2 * wordSize); |
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} else { |
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masm.mov(rscratch1, totalFrameSize - 2 * wordSize); |
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masm.add(64, sp, sp, rscratch1); |
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} |
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masm.ldp(64, fp, lr, AArch64Address.createPostIndexedImmediateAddress(sp, 2)); |
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} |
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} |
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} |
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||
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@Override |
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public boolean hasFrame() { |
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return true; |
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} |
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||
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} |
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||
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@Override |
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protected Assembler createAssembler(FrameMap frameMap) { |
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return new AArch64MacroAssembler(getTarget()); |
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} |
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||
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@Override |
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public CompilationResultBuilder newCompilationResultBuilder(LIRGenerationResult lirGenRen, FrameMap frameMap, CompilationResult compilationResult, CompilationResultBuilderFactory factory) { |
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HotSpotLIRGenerationResult gen = (HotSpotLIRGenerationResult) lirGenRen; |
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LIR lir = gen.getLIR(); |
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assert gen.getDeoptimizationRescueSlot() == null || frameMap.frameNeedsAllocating() : "method that can deoptimize must have a frame"; |
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||
232 |
Stub stub = gen.getStub(); |
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Assembler masm = createAssembler(frameMap); |
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HotSpotFrameContext frameContext = new HotSpotFrameContext(stub != null); |
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||
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DataBuilder dataBuilder = new HotSpotDataBuilder(getCodeCache().getTarget()); |
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CompilationResultBuilder crb = factory.createBuilder(getCodeCache(), getForeignCalls(), frameMap, masm, dataBuilder, frameContext, lir.getOptions(), lir.getDebug(), compilationResult, |
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Register.None); |
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crb.setTotalFrameSize(frameMap.totalFrameSize()); |
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crb.setMaxInterpreterFrameSize(gen.getMaxInterpreterFrameSize()); |
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StackSlot deoptimizationRescueSlot = gen.getDeoptimizationRescueSlot(); |
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if (deoptimizationRescueSlot != null && stub == null) { |
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crb.compilationResult.setCustomStackAreaOffset(deoptimizationRescueSlot); |
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} |
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||
246 |
if (stub != null) { |
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46344 | 247 |
EconomicSet<Register> destroyedCallerRegisters = gatherDestroyedCallerRegisters(lir); |
43972 | 248 |
updateStub(stub, destroyedCallerRegisters, gen.getCalleeSaveInfo(), frameMap); |
249 |
} |
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return crb; |
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} |
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||
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@Override |
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public void emitCode(CompilationResultBuilder crb, LIR lir, ResolvedJavaMethod installedCodeOwner) { |
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AArch64MacroAssembler masm = (AArch64MacroAssembler) crb.asm; |
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FrameMap frameMap = crb.frameMap; |
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RegisterConfig regConfig = frameMap.getRegisterConfig(); |
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Label verifiedStub = new Label(); |
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||
260 |
emitCodePrefix(crb, installedCodeOwner, masm, regConfig, verifiedStub); |
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261 |
emitCodeBody(crb, lir, masm); |
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emitCodeSuffix(crb, masm, frameMap); |
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263 |
} |
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264 |
||
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private void emitCodePrefix(CompilationResultBuilder crb, ResolvedJavaMethod installedCodeOwner, AArch64MacroAssembler masm, RegisterConfig regConfig, Label verifiedStub) { |
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HotSpotProviders providers = getProviders(); |
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if (installedCodeOwner != null && !isStatic(installedCodeOwner.getModifiers())) { |
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crb.recordMark(config.MARKID_UNVERIFIED_ENTRY); |
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CallingConvention cc = regConfig.getCallingConvention(HotSpotCallingConventionType.JavaCallee, null, new JavaType[]{providers.getMetaAccess().lookupJavaType(Object.class)}, this); |
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// See definition of IC_Klass in c1_LIRAssembler_aarch64.cpp |
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// equal to scratch(1) careful! |
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272 |
Register inlineCacheKlass = AArch64HotSpotRegisterConfig.inlineCacheRegister; |
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Register receiver = asRegister(cc.getArgument(0)); |
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274 |
int transferSize = config.useCompressedClassPointers ? 4 : 8; |
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275 |
AArch64Address klassAddress = masm.makeAddress(receiver, config.hubOffset, transferSize); |
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||
277 |
// Are r10 and r11 available scratch registers here? One would hope so. |
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278 |
Register klass = r10; |
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279 |
if (config.useCompressedClassPointers) { |
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masm.ldr(32, klass, klassAddress); |
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50330 | 281 |
AArch64HotSpotMove.decodeKlassPointer(crb, masm, klass, klass, config.getKlassEncoding(), config); |
43972 | 282 |
} else { |
283 |
masm.ldr(64, klass, klassAddress); |
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284 |
} |
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285 |
masm.cmp(64, inlineCacheKlass, klass); |
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286 |
/* |
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287 |
* Conditional jumps have a much lower range than unconditional ones, which can be a |
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288 |
* problem because the miss handler could be out of range. |
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289 |
*/ |
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290 |
masm.branchConditionally(AArch64Assembler.ConditionFlag.EQ, verifiedStub); |
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291 |
AArch64Call.directJmp(crb, masm, getForeignCalls().lookupForeignCall(IC_MISS_HANDLER)); |
|
292 |
} |
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293 |
masm.align(config.codeEntryAlignment); |
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294 |
crb.recordMark(config.MARKID_OSR_ENTRY); |
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295 |
masm.bind(verifiedStub); |
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296 |
crb.recordMark(config.MARKID_VERIFIED_ENTRY); |
|
50330 | 297 |
|
298 |
if (GeneratePIC.getValue(crb.getOptions())) { |
|
299 |
// Check for method state |
|
300 |
HotSpotFrameContext frameContext = (HotSpotFrameContext) crb.frameContext; |
|
301 |
if (!frameContext.isStub) { |
|
302 |
crb.recordInlineDataInCodeWithNote(new HotSpotSentinelConstant(LIRKind.value(AArch64Kind.QWORD), JavaKind.Long), HotSpotConstantLoadAction.MAKE_NOT_ENTRANT); |
|
303 |
try (ScratchRegister sc = masm.getScratchRegister()) { |
|
304 |
Register scratch = sc.getRegister(); |
|
305 |
masm.addressOf(scratch); |
|
306 |
masm.ldr(64, scratch, AArch64Address.createBaseRegisterOnlyAddress(scratch)); |
|
307 |
Label noCall = new Label(); |
|
308 |
masm.cbz(64, scratch, noCall); |
|
309 |
AArch64Call.directJmp(crb, masm, getForeignCalls().lookupForeignCall(WRONG_METHOD_HANDLER)); |
|
310 |
masm.bind(noCall); |
|
311 |
} |
|
312 |
} |
|
313 |
} |
|
43972 | 314 |
} |
315 |
||
316 |
private static void emitCodeBody(CompilationResultBuilder crb, LIR lir, AArch64MacroAssembler masm) { |
|
49451 | 317 |
emitInvalidatePlaceholder(crb, masm); |
318 |
crb.emit(lir); |
|
319 |
} |
|
320 |
||
321 |
/** |
|
322 |
* Insert a nop at the start of the prolog so we can patch in a branch if we need to invalidate |
|
323 |
* the method later. |
|
324 |
* |
|
325 |
* @see "http://mail.openjdk.java.net/pipermail/aarch64-port-dev/2013-September/000273.html" |
|
326 |
*/ |
|
327 |
public static void emitInvalidatePlaceholder(CompilationResultBuilder crb, AArch64MacroAssembler masm) { |
|
50330 | 328 |
if (!GeneratePIC.getValue(crb.getOptions())) { |
329 |
crb.blockComment("[nop for method invalidation]"); |
|
330 |
masm.nop(); |
|
331 |
} |
|
43972 | 332 |
} |
333 |
||
334 |
private void emitCodeSuffix(CompilationResultBuilder crb, AArch64MacroAssembler masm, FrameMap frameMap) { |
|
335 |
HotSpotProviders providers = getProviders(); |
|
336 |
HotSpotFrameContext frameContext = (HotSpotFrameContext) crb.frameContext; |
|
337 |
if (!frameContext.isStub) { |
|
49451 | 338 |
HotSpotForeignCallsProvider foreignCalls = providers.getForeignCalls(); |
43972 | 339 |
try (ScratchRegister sc = masm.getScratchRegister()) { |
340 |
Register scratch = sc.getRegister(); |
|
341 |
crb.recordMark(config.MARKID_EXCEPTION_HANDLER_ENTRY); |
|
342 |
ForeignCallLinkage linkage = foreignCalls.lookupForeignCall(EXCEPTION_HANDLER); |
|
343 |
Register helper = AArch64Call.isNearCall(linkage) ? null : scratch; |
|
344 |
AArch64Call.directCall(crb, masm, linkage, helper, null); |
|
345 |
} |
|
49451 | 346 |
crb.recordMark(config.MARKID_DEOPT_HANDLER_ENTRY); |
347 |
ForeignCallLinkage linkage = foreignCalls.lookupForeignCall(DEOPTIMIZATION_HANDLER); |
|
348 |
masm.adr(lr, 0); // Warning: the argument is an offset from the instruction! |
|
349 |
AArch64Call.directJmp(crb, masm, linkage); |
|
43972 | 350 |
} else { |
351 |
// No need to emit the stubs for entries back into the method since |
|
352 |
// it has no calls that can cause such "return" entries |
|
353 |
assert !frameMap.accessesCallerFrame(); |
|
354 |
} |
|
355 |
} |
|
356 |
||
357 |
@Override |
|
46344 | 358 |
public RegisterAllocationConfig newRegisterAllocationConfig(RegisterConfig registerConfig, String[] allocationRestrictedTo) { |
43972 | 359 |
RegisterConfig registerConfigNonNull = registerConfig == null ? getCodeCache().getRegisterConfig() : registerConfig; |
46344 | 360 |
return new AArch64HotSpotRegisterAllocationConfig(registerConfigNonNull, allocationRestrictedTo); |
43972 | 361 |
} |
362 |
||
363 |
@Override |
|
46344 | 364 |
public EconomicSet<Register> translateToCallerRegisters(EconomicSet<Register> calleeRegisters) { |
43972 | 365 |
return calleeRegisters; |
366 |
} |
|
367 |
} |