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 24package org.graalvm.compiler.core.aarch64; 25 26import static jdk.vm.ci.code.ValueUtil.asRegister; 27 28import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler; 29import org.graalvm.compiler.core.common.calc.FloatConvert; 30import org.graalvm.compiler.debug.GraalError; 31import org.graalvm.compiler.lir.LIRInstructionClass; 32import org.graalvm.compiler.lir.aarch64.AArch64LIRInstruction; 33import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 34 35import jdk.vm.ci.code.Register; 36import jdk.vm.ci.meta.AllocatableValue; 37 38public final class AArch64FloatConvertOp extends AArch64LIRInstruction { 39 private static final LIRInstructionClass<AArch64FloatConvertOp> TYPE = LIRInstructionClass.create(AArch64FloatConvertOp.class); 40 41 private final FloatConvert op; 42 @Def protected AllocatableValue resultValue; 43 @Use protected AllocatableValue inputValue; 44 45 protected AArch64FloatConvertOp(FloatConvert op, AllocatableValue resultValue, AllocatableValue inputValue) { 46 super(TYPE); 47 this.op = op; 48 this.resultValue = resultValue; 49 this.inputValue = inputValue; 50 } 51 52 @Override 53 public void emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm) { 54 int fromSize = inputValue.getPlatformKind().getSizeInBytes() * Byte.SIZE; 55 int toSize = resultValue.getPlatformKind().getSizeInBytes() * Byte.SIZE; 56 57 Register result = asRegister(resultValue); 58 Register input = asRegister(inputValue); 59 switch (op) { 60 case F2I: 61 case D2I: 62 case F2L: 63 case D2L: 64 masm.fcvtzs(toSize, fromSize, result, input); 65 break; 66 case I2F: 67 case I2D: 68 case L2F: 69 case L2D: 70 masm.scvtf(toSize, fromSize, result, input); 71 break; 72 case D2F: 73 case F2D: 74 masm.fcvt(fromSize, result, input); 75 break; 76 default: 77 throw GraalError.shouldNotReachHere(); 78 } 79 } 80 81} 82