| /* |
| * Copyright (c) 2013, 2015, 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 org.graalvm.compiler.hotspot.amd64; |
| |
| import static org.graalvm.compiler.core.common.GraalOptions.GeneratePIC; |
| import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.HINT; |
| import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.ILLEGAL; |
| import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; |
| import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK; |
| import static jdk.vm.ci.code.ValueUtil.asRegister; |
| import static jdk.vm.ci.code.ValueUtil.isRegister; |
| import static jdk.vm.ci.code.ValueUtil.isStackSlot; |
| |
| import org.graalvm.compiler.asm.Label; |
| import org.graalvm.compiler.asm.amd64.AMD64Address; |
| import org.graalvm.compiler.asm.amd64.AMD64Assembler.ConditionFlag; |
| import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler; |
| import org.graalvm.compiler.debug.GraalError; |
| import org.graalvm.compiler.hotspot.CompressEncoding; |
| import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; |
| import org.graalvm.compiler.lir.LIRInstructionClass; |
| import org.graalvm.compiler.lir.StandardOp.LoadConstantOp; |
| import org.graalvm.compiler.lir.amd64.AMD64LIRInstruction; |
| import org.graalvm.compiler.lir.amd64.AMD64Move; |
| import org.graalvm.compiler.lir.asm.CompilationResultBuilder; |
| |
| import jdk.vm.ci.amd64.AMD64Kind; |
| import jdk.vm.ci.code.Register; |
| import jdk.vm.ci.hotspot.HotSpotMetaspaceConstant; |
| import jdk.vm.ci.hotspot.HotSpotObjectConstant; |
| import jdk.vm.ci.meta.AllocatableValue; |
| import jdk.vm.ci.meta.Constant; |
| |
| public class AMD64HotSpotMove { |
| |
| public static final class HotSpotLoadObjectConstantOp extends AMD64LIRInstruction implements LoadConstantOp { |
| public static final LIRInstructionClass<HotSpotLoadObjectConstantOp> TYPE = LIRInstructionClass.create(HotSpotLoadObjectConstantOp.class); |
| |
| @Def({REG, STACK}) private AllocatableValue result; |
| private final HotSpotObjectConstant input; |
| |
| public HotSpotLoadObjectConstantOp(AllocatableValue result, HotSpotObjectConstant input) { |
| super(TYPE); |
| this.result = result; |
| this.input = input; |
| } |
| |
| @Override |
| public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) { |
| if (GeneratePIC.getValue()) { |
| throw GraalError.shouldNotReachHere("Object constant load should not be happening directly"); |
| } |
| boolean compressed = input.isCompressed(); |
| if (crb.target.inlineObjects) { |
| crb.recordInlineDataInCode(input); |
| if (isRegister(result)) { |
| if (compressed) { |
| masm.movl(asRegister(result), 0xDEADDEAD); |
| } else { |
| masm.movq(asRegister(result), 0xDEADDEADDEADDEADL); |
| } |
| } else { |
| assert isStackSlot(result); |
| if (compressed) { |
| masm.movl((AMD64Address) crb.asAddress(result), 0xDEADDEAD); |
| } else { |
| throw GraalError.shouldNotReachHere("Cannot store 64-bit constants to memory"); |
| } |
| } |
| } else { |
| if (isRegister(result)) { |
| AMD64Address address = (AMD64Address) crb.recordDataReferenceInCode(input, compressed ? 4 : 8); |
| if (compressed) { |
| masm.movl(asRegister(result), address); |
| } else { |
| masm.movq(asRegister(result), address); |
| } |
| } else { |
| throw GraalError.shouldNotReachHere("Cannot directly store data patch to memory"); |
| } |
| } |
| } |
| |
| @Override |
| public Constant getConstant() { |
| return input; |
| } |
| |
| @Override |
| public AllocatableValue getResult() { |
| return result; |
| } |
| } |
| |
| public static final class BaseMove extends AMD64LIRInstruction { |
| public static final LIRInstructionClass<BaseMove> TYPE = LIRInstructionClass.create(BaseMove.class); |
| |
| @Def({REG, HINT}) protected AllocatableValue result; |
| private final GraalHotSpotVMConfig config; |
| |
| public BaseMove(AllocatableValue result, GraalHotSpotVMConfig config) { |
| super(TYPE); |
| this.result = result; |
| this.config = config; |
| } |
| |
| @Override |
| public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) { |
| masm.movq(asRegister(result), masm.getPlaceholder(-1)); |
| crb.recordMark(config.MARKID_NARROW_KLASS_BASE_ADDRESS); |
| } |
| |
| } |
| |
| public static final class HotSpotLoadMetaspaceConstantOp extends AMD64LIRInstruction implements LoadConstantOp { |
| public static final LIRInstructionClass<HotSpotLoadMetaspaceConstantOp> TYPE = LIRInstructionClass.create(HotSpotLoadMetaspaceConstantOp.class); |
| |
| @Def({REG, STACK}) private AllocatableValue result; |
| private final HotSpotMetaspaceConstant input; |
| |
| public HotSpotLoadMetaspaceConstantOp(AllocatableValue result, HotSpotMetaspaceConstant input) { |
| super(TYPE); |
| this.result = result; |
| this.input = input; |
| } |
| |
| @Override |
| public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) { |
| if (GeneratePIC.getValue()) { |
| throw GraalError.shouldNotReachHere("Metaspace constant load should not be happening directly"); |
| } |
| boolean compressed = input.isCompressed(); |
| if (isRegister(result)) { |
| if (compressed) { |
| crb.recordInlineDataInCode(input); |
| masm.movl(asRegister(result), 0xDEADDEAD); |
| } else { |
| crb.recordInlineDataInCode(input); |
| masm.movq(asRegister(result), 0xDEADDEADDEADDEADL); |
| } |
| } else { |
| assert isStackSlot(result); |
| if (compressed) { |
| crb.recordInlineDataInCode(input); |
| masm.movl((AMD64Address) crb.asAddress(result), 0xDEADDEAD); |
| } else { |
| throw GraalError.shouldNotReachHere("Cannot store 64-bit constants to memory"); |
| } |
| } |
| } |
| |
| @Override |
| public Constant getConstant() { |
| return input; |
| } |
| |
| @Override |
| public AllocatableValue getResult() { |
| return result; |
| } |
| } |
| |
| public static final class CompressPointer extends AMD64LIRInstruction { |
| public static final LIRInstructionClass<CompressPointer> TYPE = LIRInstructionClass.create(CompressPointer.class); |
| |
| private final CompressEncoding encoding; |
| private final boolean nonNull; |
| |
| @Def({REG, HINT}) protected AllocatableValue result; |
| @Use({REG}) protected AllocatableValue input; |
| @Alive({REG, ILLEGAL}) protected AllocatableValue baseRegister; |
| |
| public CompressPointer(AllocatableValue result, AllocatableValue input, AllocatableValue baseRegister, CompressEncoding encoding, boolean nonNull) { |
| super(TYPE); |
| this.result = result; |
| this.input = input; |
| this.baseRegister = baseRegister; |
| this.encoding = encoding; |
| this.nonNull = nonNull; |
| } |
| |
| @Override |
| public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) { |
| AMD64Move.move(AMD64Kind.QWORD, crb, masm, result, input); |
| |
| Register resReg = asRegister(result); |
| if (encoding.base != 0 || GeneratePIC.getValue()) { |
| Register baseReg = asRegister(baseRegister); |
| if (!nonNull) { |
| masm.testq(resReg, resReg); |
| masm.cmovq(ConditionFlag.Equal, resReg, baseReg); |
| } |
| masm.subq(resReg, baseReg); |
| } |
| |
| if (encoding.shift != 0) { |
| masm.shrq(resReg, encoding.shift); |
| } |
| } |
| } |
| |
| public static final class UncompressPointer extends AMD64LIRInstruction { |
| public static final LIRInstructionClass<UncompressPointer> TYPE = LIRInstructionClass.create(UncompressPointer.class); |
| |
| private final CompressEncoding encoding; |
| private final boolean nonNull; |
| |
| @Def({REG, HINT}) protected AllocatableValue result; |
| @Use({REG}) protected AllocatableValue input; |
| @Alive({REG, ILLEGAL}) protected AllocatableValue baseRegister; |
| |
| public UncompressPointer(AllocatableValue result, AllocatableValue input, AllocatableValue baseRegister, CompressEncoding encoding, boolean nonNull) { |
| super(TYPE); |
| this.result = result; |
| this.input = input; |
| this.baseRegister = baseRegister; |
| this.encoding = encoding; |
| this.nonNull = nonNull; |
| } |
| |
| @Override |
| public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) { |
| AMD64Move.move(AMD64Kind.DWORD, crb, masm, result, input); |
| |
| Register resReg = asRegister(result); |
| if (encoding.shift != 0) { |
| masm.shlq(resReg, encoding.shift); |
| } |
| |
| if (encoding.base != 0 || GeneratePIC.getValue()) { |
| if (nonNull) { |
| masm.addq(resReg, asRegister(baseRegister)); |
| } else { |
| if (encoding.shift == 0) { |
| // if encoding.shift != 0, the flags are already set by the shlq |
| masm.testq(resReg, resReg); |
| } |
| |
| Label done = new Label(); |
| masm.jccb(ConditionFlag.Equal, done); |
| masm.addq(resReg, asRegister(baseRegister)); |
| masm.bind(done); |
| } |
| } |
| } |
| } |
| |
| public static void decodeKlassPointer(CompilationResultBuilder crb, AMD64MacroAssembler masm, Register register, Register scratch, AMD64Address address, GraalHotSpotVMConfig config) { |
| CompressEncoding encoding = config.getKlassEncoding(); |
| masm.movl(register, address); |
| if (encoding.shift != 0) { |
| assert encoding.alignment == encoding.shift : "Decode algorithm is wrong"; |
| masm.shlq(register, encoding.alignment); |
| } |
| if (GeneratePIC.getValue() || encoding.base != 0) { |
| if (GeneratePIC.getValue()) { |
| masm.movq(scratch, masm.getPlaceholder(-1)); |
| crb.recordMark(config.MARKID_NARROW_KLASS_BASE_ADDRESS); |
| } else { |
| assert encoding.base != 0; |
| masm.movq(scratch, encoding.base); |
| } |
| masm.addq(register, scratch); |
| } |
| } |
| } |
