1 /* 2 * Copyright (c) 2009, 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.core.sparc; 25 26 import static jdk.vm.ci.sparc.SPARCKind.BYTE; 27 import static jdk.vm.ci.sparc.SPARCKind.HWORD; 28 import static jdk.vm.ci.sparc.SPARCKind.WORD; 29 import static jdk.vm.ci.sparc.SPARCKind.XWORD; 30 31 import org.graalvm.compiler.core.common.LIRKind; 32 import org.graalvm.compiler.core.gen.NodeMatchRules; 33 import org.graalvm.compiler.core.match.ComplexMatchResult; 34 import org.graalvm.compiler.core.match.MatchRule; 35 import org.graalvm.compiler.debug.GraalError; 36 import org.graalvm.compiler.lir.LIRFrameState; 37 import org.graalvm.compiler.lir.gen.LIRGeneratorTool; 38 import org.graalvm.compiler.nodes.DeoptimizingNode; 39 import org.graalvm.compiler.nodes.calc.SignExtendNode; 40 import org.graalvm.compiler.nodes.calc.ZeroExtendNode; 41 import org.graalvm.compiler.nodes.memory.Access; 42 43 import jdk.vm.ci.sparc.SPARCKind; 44 45 /** 46 * This class implements the SPARC specific portion of the LIR generator. 47 */ 48 public class SPARCNodeMatchRules extends NodeMatchRules { 49 50 public SPARCNodeMatchRules(LIRGeneratorTool gen) { 51 super(gen); 52 } 53 54 protected LIRFrameState getState(Access access) { 55 if (access instanceof DeoptimizingNode) { 56 return state((DeoptimizingNode) access); 57 } 58 return null; 59 } 60 61 private ComplexMatchResult emitSignExtendMemory(Access access, int fromBits, int toBits) { 62 assert fromBits <= toBits && toBits <= 64; 63 SPARCKind toKind = null; 64 SPARCKind fromKind = null; 65 if (fromBits == toBits) { 66 return null; 67 } 68 toKind = toBits > 32 ? XWORD : WORD; 69 switch (fromBits) { 70 case 8: 71 fromKind = BYTE; 72 break; 73 case 16: 74 fromKind = HWORD; 75 break; 76 case 32: 77 fromKind = WORD; 78 break; 79 default: 80 throw GraalError.unimplemented("unsupported sign extension (" + fromBits + " bit -> " + toBits + " bit)"); 81 } 82 SPARCKind localFromKind = fromKind; 83 SPARCKind localToKind = toKind; 84 return builder -> { 85 return getLIRGeneratorTool().emitSignExtendLoad(LIRKind.value(localFromKind), LIRKind.value(localToKind), operand(access.getAddress()), getState(access)); 86 }; 87 } 88 89 private ComplexMatchResult emitZeroExtendMemory(Access access, int fromBits, int toBits) { 90 assert fromBits <= toBits && toBits <= 64; 91 SPARCKind toKind = null; 92 SPARCKind fromKind = null; 93 if (fromBits == toBits) { 94 return null; 95 } 96 toKind = toBits > 32 ? XWORD : WORD; 97 switch (fromBits) { 98 case 8: 99 fromKind = BYTE; 100 break; 101 case 16: 102 fromKind = HWORD; 103 break; 104 case 32: 105 fromKind = WORD; 106 break; 107 default: 108 throw GraalError.unimplemented("unsupported sign extension (" + fromBits + " bit -> " + toBits + " bit)"); 109 } 110 SPARCKind localFromKind = fromKind; 111 SPARCKind localToKind = toKind; 112 return builder -> { 113 // Loads are always zero extending load 114 return getLIRGeneratorTool().emitZeroExtendLoad(LIRKind.value(localFromKind), LIRKind.value(localToKind), operand(access.getAddress()), getState(access)); 115 }; 116 } 117 118 @MatchRule("(SignExtend Read=access)") 119 @MatchRule("(SignExtend FloatingRead=access)") 120 public ComplexMatchResult signExtend(SignExtendNode root, Access access) { 121 return emitSignExtendMemory(access, root.getInputBits(), root.getResultBits()); 122 } 123 124 @MatchRule("(ZeroExtend Read=access)") 125 @MatchRule("(ZeroExtend FloatingRead=access)") 126 public ComplexMatchResult zeroExtend(ZeroExtendNode root, Access access) { 127 return emitZeroExtendMemory(access, root.getInputBits(), root.getResultBits()); 128 } 129 130 @Override 131 public SPARCLIRGenerator getLIRGeneratorTool() { 132 return (SPARCLIRGenerator) super.getLIRGeneratorTool(); 133 } 134 135 protected SPARCArithmeticLIRGenerator getArithmeticLIRGenerator() { 136 return (SPARCArithmeticLIRGenerator) getLIRGeneratorTool().getArithmetic(); 137 } 138 }