Mercurial > hg > graal-compiler
annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/ReinterpretNode.java @ 14011:134491e79cde
Use correct PlatformKind in reinterpret LIR generation.
| author | Roland Schatz <roland.schatz@oracle.com> |
|---|---|
| date | Mon, 24 Feb 2014 15:06:07 +0100 |
| parents | 958c99d0790c |
| children | dbe41340d0a6 |
| rev | line source |
|---|---|
| 12656 | 1 /* |
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2 * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved. |
| 12656 | 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 com.oracle.graal.nodes.calc; | |
| 24 | |
| 25 import com.oracle.graal.api.meta.*; | |
| 26 import com.oracle.graal.graph.*; | |
| 27 import com.oracle.graal.graph.spi.*; | |
| 28 import com.oracle.graal.nodes.*; | |
| 29 import com.oracle.graal.nodes.spi.*; | |
| 30 import com.oracle.graal.nodes.type.*; | |
| 31 | |
| 32 /** | |
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33 * The {@code ReinterpretNode} class represents a reinterpreting conversion that changes the stamp |
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34 * of a primitive value to some other incompatible stamp. The new stamp must have the same width as |
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958c99d0790c
Split convert node into separate nodes for different conversions.
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parents:
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35 * the old stamp. |
| 12656 | 36 */ |
| 37 public class ReinterpretNode extends FloatingNode implements Canonicalizable, ArithmeticLIRLowerable { | |
| 38 | |
| 39 @Input private ValueNode value; | |
| 40 | |
| 41 public ValueNode value() { | |
| 42 return value; | |
| 43 } | |
| 44 | |
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45 private ReinterpretNode(Kind to, ValueNode value) { |
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46 this(StampFactory.forKind(to), value); |
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47 } |
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parents:
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48 |
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49 public ReinterpretNode(Stamp to, ValueNode value) { |
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50 super(to); |
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51 assert to instanceof PrimitiveStamp; |
| 12656 | 52 this.value = value; |
| 53 } | |
| 54 | |
| 55 public Constant evalConst(Constant... inputs) { | |
| 56 assert inputs.length == 1; | |
| 57 Constant c = inputs[0]; | |
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58 assert c.getKind().getBitCount() == ((PrimitiveStamp) stamp()).getBits(); |
| 12656 | 59 switch (c.getKind()) { |
| 60 case Int: | |
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61 if (stamp() instanceof FloatStamp) { |
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62 return Constant.forFloat(Float.intBitsToFloat(c.asInt())); |
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63 } else { |
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64 return c; |
| 12656 | 65 } |
| 66 case Long: | |
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67 if (stamp() instanceof FloatStamp) { |
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68 return Constant.forDouble(Double.longBitsToDouble(c.asLong())); |
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69 } else { |
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70 return c; |
| 12656 | 71 } |
| 72 case Float: | |
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parents:
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73 if (stamp() instanceof IntegerStamp) { |
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74 return Constant.forInt(Float.floatToRawIntBits(c.asFloat())); |
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958c99d0790c
Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
parents:
12656
diff
changeset
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75 } else { |
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958c99d0790c
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Roland Schatz <roland.schatz@oracle.com>
parents:
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diff
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76 return c; |
| 12656 | 77 } |
| 78 case Double: | |
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Split convert node into separate nodes for different conversions.
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parents:
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79 if (stamp() instanceof IntegerStamp) { |
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958c99d0790c
Split convert node into separate nodes for different conversions.
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parents:
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80 return Constant.forLong(Double.doubleToRawLongBits(c.asDouble())); |
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958c99d0790c
Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
parents:
12656
diff
changeset
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81 } else { |
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958c99d0790c
Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
parents:
12656
diff
changeset
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82 return c; |
| 12656 | 83 } |
| 84 } | |
| 85 throw GraalInternalError.shouldNotReachHere(); | |
| 86 } | |
| 87 | |
| 88 @Override | |
| 89 public Node canonical(CanonicalizerTool tool) { | |
| 90 if (value.isConstant()) { | |
| 91 return ConstantNode.forPrimitive(evalConst(value.asConstant()), graph()); | |
| 92 } | |
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Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
parents:
12656
diff
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93 if (stamp().isCompatible(value.stamp())) { |
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958c99d0790c
Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
parents:
12656
diff
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94 return value; |
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958c99d0790c
Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
parents:
12656
diff
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95 } |
| 12656 | 96 return this; |
| 97 } | |
| 98 | |
| 99 @Override | |
| 100 public void generate(ArithmeticLIRGenerator gen) { | |
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Use correct PlatformKind in reinterpret LIR generation.
Roland Schatz <roland.schatz@oracle.com>
parents:
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diff
changeset
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101 PlatformKind kind = gen.getPlatformKind(stamp()); |
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134491e79cde
Use correct PlatformKind in reinterpret LIR generation.
Roland Schatz <roland.schatz@oracle.com>
parents:
14000
diff
changeset
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102 gen.setResult(this, gen.emitReinterpret(kind, gen.operand(value()))); |
| 12656 | 103 } |
| 104 | |
| 105 public static ValueNode reinterpret(Kind toKind, ValueNode value) { | |
| 106 return value.graph().unique(new ReinterpretNode(toKind, value)); | |
| 107 } | |
| 108 | |
| 109 @NodeIntrinsic | |
| 110 public static native float reinterpret(@ConstantNodeParameter Kind kind, int value); | |
| 111 | |
| 112 @NodeIntrinsic | |
| 113 public static native int reinterpret(@ConstantNodeParameter Kind kind, float value); | |
| 114 | |
| 115 @NodeIntrinsic | |
| 116 public static native double reinterpret(@ConstantNodeParameter Kind kind, long value); | |
| 117 | |
| 118 @NodeIntrinsic | |
| 119 public static native long reinterpret(@ConstantNodeParameter Kind kind, double value); | |
| 120 } |