jdk.graal.compiler.lir.amd64.AMD64Unary Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of compiler Show documentation
Show all versions of compiler Show documentation
The GraalVM compiler and the Graal-truffle optimizer.
/*
* Copyright (c) 2015, 2018, 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* 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 jdk.graal.compiler.lir.amd64;
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 jdk.graal.compiler.asm.amd64.AMD64Address;
import jdk.graal.compiler.asm.amd64.AMD64Assembler.AMD64MOp;
import jdk.graal.compiler.asm.amd64.AMD64Assembler.AMD64MROp;
import jdk.graal.compiler.asm.amd64.AMD64Assembler.AMD64RMOp;
import jdk.graal.compiler.asm.amd64.AMD64BaseAssembler.OperandSize;
import jdk.graal.compiler.asm.amd64.AMD64MacroAssembler;
import jdk.graal.compiler.lir.LIRFrameState;
import jdk.graal.compiler.lir.LIRInstructionClass;
import jdk.graal.compiler.lir.Opcode;
import jdk.graal.compiler.lir.StandardOp;
import jdk.graal.compiler.lir.asm.CompilationResultBuilder;
import jdk.vm.ci.meta.AllocatableValue;
import jdk.vm.ci.meta.Value;
/**
* AMD64 LIR instructions that have one input and one output.
*/
public class AMD64Unary {
/**
* Instruction with a single operand that is both input and output.
*/
public static class MOp extends AMD64LIRInstruction {
public static final LIRInstructionClass TYPE = LIRInstructionClass.create(MOp.class);
@Opcode private final AMD64MOp opcode;
private final OperandSize size;
@Def({OperandFlag.REG, OperandFlag.HINT}) protected AllocatableValue result;
@Use({OperandFlag.REG, OperandFlag.STACK}) protected AllocatableValue value;
public MOp(AMD64MOp opcode, OperandSize size, AllocatableValue result, AllocatableValue value) {
super(TYPE);
this.opcode = opcode;
this.size = size;
this.result = result;
this.value = value;
}
@Override
public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
AMD64Move.move(crb, masm, result, value);
opcode.emit(masm, size, asRegister(result));
}
}
/**
* Instruction with separate input and output operands, and an operand encoding of RM.
*/
public static class RMOp extends AMD64LIRInstruction {
public static final LIRInstructionClass TYPE = LIRInstructionClass.create(RMOp.class);
@Opcode private final AMD64RMOp opcode;
private final OperandSize size;
@Def({OperandFlag.REG}) protected AllocatableValue result;
@Use({OperandFlag.REG, OperandFlag.STACK}) protected AllocatableValue value;
public RMOp(AMD64RMOp opcode, OperandSize size, AllocatableValue result, AllocatableValue value) {
super(TYPE);
this.opcode = opcode;
this.size = size;
this.result = result;
this.value = value;
}
@Override
public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
if (isRegister(value)) {
opcode.emit(masm, size, asRegister(result), asRegister(value));
} else {
assert isStackSlot(value);
opcode.emit(masm, size, asRegister(result), (AMD64Address) crb.asAddress(value));
}
}
}
/**
* Instruction with separate input and output operands, and an operand encoding of MR.
*/
public static class MROp extends AMD64LIRInstruction {
public static final LIRInstructionClass TYPE = LIRInstructionClass.create(MROp.class);
@Opcode private final AMD64MROp opcode;
private final OperandSize size;
@Def({OperandFlag.REG, OperandFlag.STACK}) protected AllocatableValue result;
@Use({OperandFlag.REG}) protected AllocatableValue value;
public MROp(AMD64MROp opcode, OperandSize size, AllocatableValue result, AllocatableValue value) {
super(TYPE);
this.opcode = opcode;
this.size = size;
this.result = result;
this.value = value;
}
@Override
public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
if (isRegister(result)) {
opcode.emit(masm, size, asRegister(result), asRegister(value));
} else {
assert isStackSlot(result);
opcode.emit(masm, size, (AMD64Address) crb.asAddress(result), asRegister(value));
}
}
}
/**
* Instruction with a {@link AMD64AddressValue memory} operand.
*/
public static class MemoryOp extends AMD64LIRInstruction implements StandardOp.ImplicitNullCheck {
public static final LIRInstructionClass TYPE = LIRInstructionClass.create(MemoryOp.class);
@Opcode private final AMD64RMOp opcode;
private final OperandSize size;
@Def({OperandFlag.REG}) protected AllocatableValue result;
@Use({OperandFlag.COMPOSITE}) protected AMD64AddressValue input;
@State protected LIRFrameState state;
public MemoryOp(AMD64RMOp opcode, OperandSize size, AllocatableValue result, AMD64AddressValue input, LIRFrameState state) {
super(TYPE);
this.opcode = opcode;
this.size = size;
this.result = result;
this.input = input;
this.state = state;
}
@Override
public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
if (state != null) {
crb.recordImplicitException(masm.position(), state);
}
opcode.emit(masm, size, asRegister(result), input.toAddress());
}
@Override
public boolean makeNullCheckFor(Value value, LIRFrameState nullCheckState, int implicitNullCheckLimit) {
if (state == null && input.isValidImplicitNullCheckFor(value, implicitNullCheckLimit)) {
state = nullCheckState;
return true;
}
return false;
}
}
}