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 package org.graalvm.compiler.lir.sparc; 24 25 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.HINT; 26 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; 27 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK; 28 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.UNINITIALIZED; 29 import static jdk.vm.ci.code.ValueUtil.asRegister; 30 import static jdk.vm.ci.sparc.SPARCKind.WORD; 31 import static jdk.vm.ci.sparc.SPARCKind.XWORD; 32 33 import org.graalvm.compiler.asm.sparc.SPARCAddress; 34 import org.graalvm.compiler.asm.sparc.SPARCAssembler.Asi; 35 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; 36 import org.graalvm.compiler.core.common.LIRKind; 37 import org.graalvm.compiler.debug.GraalError; 38 import org.graalvm.compiler.lir.LIRInstructionClass; 39 import org.graalvm.compiler.lir.Opcode; 40 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 41 import org.graalvm.compiler.lir.gen.LIRGeneratorTool; 42 43 import jdk.vm.ci.code.Register; 44 import jdk.vm.ci.code.ValueUtil; 45 import jdk.vm.ci.meta.AllocatableValue; 46 import jdk.vm.ci.meta.Value; 47 import jdk.vm.ci.sparc.SPARCKind; 48 49 @Opcode("BSWAP") 50 public final class SPARCByteSwapOp extends SPARCLIRInstruction implements SPARCTailDelayedLIRInstruction { 51 public static final LIRInstructionClass<SPARCByteSwapOp> TYPE = LIRInstructionClass.create(SPARCByteSwapOp.class); 52 public static final SizeEstimate SIZE = SizeEstimate.create(3); 53 @Def({REG, HINT}) protected Value result; 54 @Use({REG}) protected Value input; 55 @Temp({REG}) protected Value tempIndex; 56 @Use({STACK, UNINITIALIZED}) protected AllocatableValue tmpSlot; 57 58 public SPARCByteSwapOp(LIRGeneratorTool tool, Value result, Value input) { 59 super(TYPE, SIZE); 60 this.result = result; 61 this.input = input; 62 this.tmpSlot = tool.getResult().getFrameMapBuilder().allocateSpillSlot(LIRKind.value(XWORD)); 63 this.tempIndex = tool.newVariable(LIRKind.value(XWORD)); 64 } 65 66 @Override 67 public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { 68 SPARCAddress addr = (SPARCAddress) crb.asAddress(tmpSlot); 69 SPARCMove.emitStore(input, addr, result.getPlatformKind(), SPARCDelayedControlTransfer.DUMMY, null, crb, masm); 70 if (addr.getIndex().equals(Register.None)) { 71 Register tempReg = ValueUtil.asRegister(tempIndex, XWORD); 72 masm.setx(addr.getDisplacement(), tempReg, false); 73 addr = new SPARCAddress(addr.getBase(), tempReg); 74 } 75 getDelayedControlTransfer().emitControlTransfer(crb, masm); 76 switch ((SPARCKind) input.getPlatformKind()) { 77 case WORD: 78 masm.lduwa(addr.getBase(), addr.getIndex(), asRegister(result, WORD), Asi.ASI_PRIMARY_LITTLE); 79 break; 80 case XWORD: 81 masm.ldxa(addr.getBase(), addr.getIndex(), asRegister(result, XWORD), Asi.ASI_PRIMARY_LITTLE); 82 break; 83 default: 84 throw GraalError.shouldNotReachHere(); 85 } 86 } 87 }