/*
* Copyright (c) 2018, 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 com.oracle.svm.core.graal.aarch64;
import static jdk.vm.ci.code.ValueUtil.asRegister;
import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.ILLEGAL;
import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG;
import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler;
import org.graalvm.compiler.lir.LIRInstructionClass;
import org.graalvm.compiler.lir.Opcode;
import org.graalvm.compiler.lir.aarch64.AArch64BlockEndOp;
import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
import jdk.vm.ci.aarch64.AArch64;
import jdk.vm.ci.meta.AllocatableValue;
@Opcode("FAR_RETURN")
public final class AArch64FarReturnOp extends AArch64BlockEndOp {
public static final LIRInstructionClass<AArch64FarReturnOp> TYPE = LIRInstructionClass.create(AArch64FarReturnOp.class);
@Use({REG, ILLEGAL}) AllocatableValue result;
@Use(REG) AllocatableValue sp;
@Use(REG) AllocatableValue ip;
public AArch64FarReturnOp(AllocatableValue result, AllocatableValue sp, AllocatableValue ip) {
super(TYPE);
this.result = result;
this.sp = sp;
this.ip = ip;
}
@Override
public void emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm) {
masm.mov(sp.getPlatformKind().getSizeInBytes() * 8, AArch64.sp, asRegister(sp));
masm.ret(asRegister(ip));
}
}