1 /*
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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
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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
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17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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22  */
23 
24 
25 
26 package org.graalvm.compiler.core.aarch64;
27 
28 import static jdk.vm.ci.code.ValueUtil.asRegister;
29 
30 import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler;
31 import org.graalvm.compiler.core.common.calc.FloatConvert;
32 import org.graalvm.compiler.debug.GraalError;
33 import org.graalvm.compiler.lir.LIRInstructionClass;
34 import org.graalvm.compiler.lir.aarch64.AArch64LIRInstruction;
35 import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
36 
37 import jdk.vm.ci.code.Register;
38 import jdk.vm.ci.meta.AllocatableValue;
39 
40 public final class AArch64FloatConvertOp extends AArch64LIRInstruction {
41     private static final LIRInstructionClass<AArch64FloatConvertOp> TYPE = LIRInstructionClass.create(AArch64FloatConvertOp.class);
42 
43     private final FloatConvert op;
44     @Def protected AllocatableValue resultValue;
45     @Use protected AllocatableValue inputValue;
46 
AArch64FloatConvertOp(FloatConvert op, AllocatableValue resultValue, AllocatableValue inputValue)47     protected AArch64FloatConvertOp(FloatConvert op, AllocatableValue resultValue, AllocatableValue inputValue) {
48         super(TYPE);
49         this.op = op;
50         this.resultValue = resultValue;
51         this.inputValue = inputValue;
52     }
53 
54     @Override
emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm)55     public void emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm) {
56         int fromSize = inputValue.getPlatformKind().getSizeInBytes() * Byte.SIZE;
57         int toSize = resultValue.getPlatformKind().getSizeInBytes() * Byte.SIZE;
58 
59         Register result = asRegister(resultValue);
60         Register input = asRegister(inputValue);
61         switch (op) {
62             case F2I:
63             case D2I:
64             case F2L:
65             case D2L:
66                 masm.fcvtzs(toSize, fromSize, result, input);
67                 break;
68             case I2F:
69             case I2D:
70             case L2F:
71             case L2D:
72                 masm.scvtf(toSize, fromSize, result, input);
73                 break;
74             case D2F:
75             case F2D:
76                 masm.fcvt(fromSize, result, input);
77                 break;
78             default:
79                 throw GraalError.shouldNotReachHere();
80         }
81     }
82 
83 }
84