1 /* 2 * Copyright (c) 2013, 2018, 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 25 package org.graalvm.compiler.lir.sparc; 26 27 import static jdk.vm.ci.code.ValueUtil.asRegister; 28 import static jdk.vm.ci.sparc.SPARCKind.WORD; 29 import static jdk.vm.ci.sparc.SPARCKind.XWORD; 30 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.HINT; 31 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; 32 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK; 33 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.UNINITIALIZED; 34 35 import org.graalvm.compiler.asm.sparc.SPARCAddress; 36 import org.graalvm.compiler.asm.sparc.SPARCAssembler.Asi; 37 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; 38 import org.graalvm.compiler.core.common.LIRKind; 39 import org.graalvm.compiler.debug.GraalError; 40 import org.graalvm.compiler.lir.LIRInstructionClass; 41 import org.graalvm.compiler.lir.Opcode; 42 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 43 import org.graalvm.compiler.lir.gen.LIRGeneratorTool; 44 45 import jdk.vm.ci.code.Register; 46 import jdk.vm.ci.code.ValueUtil; 47 import jdk.vm.ci.meta.AllocatableValue; 48 import jdk.vm.ci.sparc.SPARCKind; 49 50 @Opcode("BSWAP") 51 public final class SPARCByteSwapOp extends SPARCLIRInstruction implements SPARCTailDelayedLIRInstruction { 52 public static final LIRInstructionClass<SPARCByteSwapOp> TYPE = LIRInstructionClass.create(SPARCByteSwapOp.class); 53 public static final SizeEstimate SIZE = SizeEstimate.create(3); 54 @Def({REG, HINT}) protected AllocatableValue result; 55 @Use({REG}) protected AllocatableValue input; 56 @Temp({REG}) protected AllocatableValue tempIndex; 57 @Use({STACK, UNINITIALIZED}) protected AllocatableValue tmpSlot; 58 59 public SPARCByteSwapOp(LIRGeneratorTool tool, AllocatableValue result, AllocatableValue input) { 60 super(TYPE, SIZE); 61 this.result = result; 62 this.input = input; 63 this.tmpSlot = tool.getResult().getFrameMapBuilder().allocateSpillSlot(LIRKind.value(XWORD)); 64 this.tempIndex = tool.newVariable(LIRKind.value(XWORD)); 65 } 66 67 @Override 68 public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { 69 SPARCAddress addr = (SPARCAddress) crb.asAddress(tmpSlot); 70 SPARCMove.emitStore(input, addr, result.getPlatformKind(), SPARCDelayedControlTransfer.DUMMY, null, crb, masm); 71 if (addr.getIndex().equals(Register.None)) { 72 Register tempReg = ValueUtil.asRegister(tempIndex, XWORD); 73 masm.setx(addr.getDisplacement(), tempReg, false); 74 addr = new SPARCAddress(addr.getBase(), tempReg); 75 } 76 getDelayedControlTransfer().emitControlTransfer(crb, masm); 77 switch ((SPARCKind) input.getPlatformKind()) { 78 case WORD: 79 masm.lduwa(addr.getBase(), addr.getIndex(), asRegister(result, WORD), Asi.ASI_PRIMARY_LITTLE); 80 break; 81 case XWORD: 82 masm.ldxa(addr.getBase(), addr.getIndex(), asRegister(result, XWORD), Asi.ASI_PRIMARY_LITTLE); 83 break; 84 default: 85 throw GraalError.shouldNotReachHere(); 86 } 87 } 88 }