1 /* 2 * Copyright (c) 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.lir.aarch64; 24 25 import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler; 26 import org.graalvm.compiler.lir.LIRInstructionClass; 27 import org.graalvm.compiler.lir.Opcode; 28 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 29 30 /** 31 * Emits a pause. 32 */ 33 @Opcode("PAUSE") 34 public final class AArch64PauseOp extends AArch64LIRInstruction { 35 public static final LIRInstructionClass<AArch64PauseOp> TYPE = LIRInstructionClass.create(AArch64PauseOp.class); 36 37 public AArch64PauseOp() { 38 super(TYPE); 39 } 40 41 @Override 42 public void emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm) { 43 masm.pause(); 44 } 45 }