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annotate graal/com.oracle.graal.compiler.sparc/src/com/oracle/graal/compiler/sparc/SPARCNodeLIRBuilder.java @ 18408:2c3666f44855

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Truffle: initial commit of object API implementation
author Andreas Woess <andreas.woess@jku.at>
date Tue, 18 Nov 2014 23:19:43 +0100
parents c88ab4f1f04a
children 79b036f0cf0b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2009, 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23
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24 package com.oracle.graal.compiler.sparc;
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25
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26 import com.oracle.graal.api.code.*;
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27 import com.oracle.graal.api.meta.*;
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28 import com.oracle.graal.compiler.common.*;
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29 import com.oracle.graal.compiler.gen.*;
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30 import com.oracle.graal.compiler.match.*;
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31 import com.oracle.graal.lir.*;
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32 import com.oracle.graal.lir.StandardOp.*;
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33 import com.oracle.graal.lir.gen.*;
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34 import com.oracle.graal.lir.sparc.*;
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35 import com.oracle.graal.nodes.*;
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36 import com.oracle.graal.nodes.calc.*;
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37 import com.oracle.graal.nodes.extended.*;
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38
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39 /**
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40 * This class implements the SPARC specific portion of the LIR generator.
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41 */
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42 public abstract class SPARCNodeLIRBuilder extends NodeLIRBuilder {
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43
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44 public SPARCNodeLIRBuilder(StructuredGraph graph, LIRGeneratorTool lirGen) {
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45 super(graph, lirGen);
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46 }
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47
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48 @Override
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49 protected boolean peephole(ValueNode valueNode) {
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50 // No peephole optimizations for now
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51 return false;
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52 }
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53
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54 @Override
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55 public void visitBreakpointNode(BreakpointNode node) {
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56 JavaType[] sig = new JavaType[node.arguments().size()];
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57 for (int i = 0; i < sig.length; i++) {
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58 sig[i] = node.arguments().get(i).stamp().javaType(gen.getMetaAccess());
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59 }
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60
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61 Value[] parameters = visitInvokeArguments(gen.getResult().getFrameMapBuilder().getRegisterConfig().getCallingConvention(CallingConvention.Type.JavaCall, null, sig, gen.target(), false),
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62 node.arguments());
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63 append(new SPARCBreakpointOp(parameters));
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64 }
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65
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66 @Override
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67 protected JumpOp newJumpOp(LabelRef ref) {
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68 return new SPARCJumpOp(ref);
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69 }
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70
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71 protected LIRFrameState getState(Access access) {
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72 if (access instanceof DeoptimizingNode) {
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73 return state((DeoptimizingNode) access);
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74 }
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75 return null;
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76 }
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77
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78 private ComplexMatchResult emitSignExtendMemory(Access access, int fromBits, int toBits) {
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79 assert fromBits <= toBits && toBits <= 64;
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80 Kind toKind = null;
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81 Kind fromKind = null;
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82 if (fromBits == toBits) {
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83 return null;
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84 } else if (toBits > 32) {
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85 toKind = Kind.Long;
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86 } else if (toBits > 16) {
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87 toKind = Kind.Int;
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88 } else {
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89 toKind = Kind.Short;
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90 }
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91 switch (fromBits) {
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92 case 8:
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93 fromKind = Kind.Byte;
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94 break;
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95 case 16:
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96 fromKind = Kind.Short;
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97 break;
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98 case 32:
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99 fromKind = Kind.Int;
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100 break;
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101 default:
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102 throw GraalInternalError.unimplemented("unsupported sign extension (" + fromBits + " bit -> " + toBits + " bit)");
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103 }
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104
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105 Kind localFromKind = fromKind;
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106 Kind localToKind = toKind;
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107 return builder -> {
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108 Value address = access.accessLocation().generateAddress(builder, gen, operand(access.object()));
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109 Value v = getLIRGeneratorTool().emitLoad(LIRKind.value(localFromKind), address, getState(access));
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110 return getLIRGeneratorTool().emitReinterpret(LIRKind.value(localToKind), v);
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111 };
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112 }
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113
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114 @MatchRule("(SignExtend Read=access)")
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115 @MatchRule("(SignExtend FloatingRead=access)")
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116 public ComplexMatchResult signExtend(SignExtendNode root, Access access) {
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117 return emitSignExtendMemory(access, root.getInputBits(), root.getResultBits());
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118 }
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119 }