1 /* 2 * Copyright (c) 2013, 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 24 package org.graalvm.compiler.lir.amd64; 25 26 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.COMPOSITE; 27 28 import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler; 29 import org.graalvm.compiler.debug.GraalError; 30 import org.graalvm.compiler.lir.LIRInstructionClass; 31 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 32 33 public final class AMD64PrefetchOp extends AMD64LIRInstruction { 34 public static final LIRInstructionClass<AMD64PrefetchOp> TYPE = LIRInstructionClass.create(AMD64PrefetchOp.class); 35 36 private final int instr; // AllocatePrefetchInstr 37 @Alive({COMPOSITE}) protected AMD64AddressValue address; 38 39 public AMD64PrefetchOp(AMD64AddressValue address, int instr) { 40 super(TYPE); 41 this.address = address; 42 this.instr = instr; 43 } 44 45 @Override 46 public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) { 47 switch (instr) { 48 case 0: 49 masm.prefetchnta(address.toAddress()); 50 break; 51 case 1: 52 masm.prefetcht0(address.toAddress()); 53 break; 54 case 2: 55 masm.prefetcht2(address.toAddress()); 56 break; 57 case 3: 58 masm.prefetchw(address.toAddress()); 59 break; 60 default: 61 throw GraalError.shouldNotReachHere("unspported prefetch op " + instr); 62 63 } 64 } 65 }