SPARCByteSwapOp.java revision 12651:6ef01bd40ce2
1169689Skan/* 2169689Skan * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. 3169689Skan * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4169689Skan * 5169689Skan * This code is free software; you can redistribute it and/or modify it 6169689Skan * under the terms of the GNU General Public License version 2 only, as 7169689Skan * published by the Free Software Foundation. 8169689Skan * 9169689Skan * This code is distributed in the hope that it will be useful, but WITHOUT 10169689Skan * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11169689Skan * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12169689Skan * version 2 for more details (a copy is included in the LICENSE file that 13169689Skan * accompanied this code). 14169689Skan * 15169689Skan * You should have received a copy of the GNU General Public License version 16169689Skan * 2 along with this work; if not, write to the Free Software Foundation, 17169689Skan * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18169689Skan * 19169689Skan * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20169689Skan * or visit www.oracle.com if you need additional information or have any 21169689Skan * questions. 22169689Skan */ 23169689Skanpackage org.graalvm.compiler.lir.sparc; 24169689Skan 25169689Skanimport static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.HINT; 26169689Skanimport static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; 27169689Skanimport static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK; 28169689Skanimport static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.UNINITIALIZED; 29169689Skanimport static jdk.vm.ci.code.ValueUtil.asRegister; 30169689Skanimport static jdk.vm.ci.sparc.SPARCKind.WORD; 31169689Skanimport static jdk.vm.ci.sparc.SPARCKind.XWORD; 32169689Skan 33169689Skanimport org.graalvm.compiler.asm.sparc.SPARCAddress; 34169689Skanimport org.graalvm.compiler.asm.sparc.SPARCAssembler.Asi; 35169689Skanimport org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; 36169689Skanimport org.graalvm.compiler.core.common.LIRKind; 37169689Skanimport org.graalvm.compiler.debug.GraalError; 38169689Skanimport org.graalvm.compiler.lir.LIRInstructionClass; 39169689Skanimport org.graalvm.compiler.lir.Opcode; 40169689Skanimport org.graalvm.compiler.lir.asm.CompilationResultBuilder; 41169689Skanimport org.graalvm.compiler.lir.gen.LIRGeneratorTool; 42169689Skan 43169689Skanimport jdk.vm.ci.code.Register; 44169689Skanimport jdk.vm.ci.code.ValueUtil; 45169689Skanimport jdk.vm.ci.meta.AllocatableValue; 46169689Skanimport jdk.vm.ci.meta.Value; 47169689Skanimport jdk.vm.ci.sparc.SPARCKind; 48169689Skan 49169689Skan@Opcode("BSWAP") 50169689Skanpublic final class SPARCByteSwapOp extends SPARCLIRInstruction implements SPARCTailDelayedLIRInstruction { 51169689Skan public static final LIRInstructionClass<SPARCByteSwapOp> TYPE = LIRInstructionClass.create(SPARCByteSwapOp.class); 52169689Skan public static final SizeEstimate SIZE = SizeEstimate.create(3); 53169689Skan @Def({REG, HINT}) protected Value result; 54169689Skan @Use({REG}) protected Value input; 55169689Skan @Temp({REG}) protected Value tempIndex; 56169689Skan @Use({STACK, UNINITIALIZED}) protected AllocatableValue tmpSlot; 57169689Skan 58169689Skan public SPARCByteSwapOp(LIRGeneratorTool tool, Value result, Value input) { 59169689Skan super(TYPE, SIZE); 60169689Skan this.result = result; 61169689Skan this.input = input; 62169689Skan this.tmpSlot = tool.getResult().getFrameMapBuilder().allocateSpillSlot(LIRKind.value(XWORD)); 63169689Skan this.tempIndex = tool.newVariable(LIRKind.value(XWORD)); 64169689Skan } 65169689Skan 66169689Skan @Override 67169689Skan public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { 68169689Skan SPARCAddress addr = (SPARCAddress) crb.asAddress(tmpSlot); 69169689Skan SPARCMove.emitStore(input, addr, result.getPlatformKind(), SPARCDelayedControlTransfer.DUMMY, null, crb, masm); 70169689Skan if (addr.getIndex().equals(Register.None)) { 71169689Skan Register tempReg = ValueUtil.asRegister(tempIndex, XWORD); 72169689Skan masm.setx(addr.getDisplacement(), tempReg, false); 73169689Skan addr = new SPARCAddress(addr.getBase(), tempReg); 74169689Skan } 75169689Skan getDelayedControlTransfer().emitControlTransfer(crb, masm); 76169689Skan switch ((SPARCKind) input.getPlatformKind()) { 77169689Skan case WORD: 78169689Skan masm.lduwa(addr.getBase(), addr.getIndex(), asRegister(result, WORD), Asi.ASI_PRIMARY_LITTLE); 79169689Skan break; 80169689Skan case XWORD: 81169689Skan masm.ldxa(addr.getBase(), addr.getIndex(), asRegister(result, XWORD), Asi.ASI_PRIMARY_LITTLE); 82169689Skan break; 83169689Skan default: 84169689Skan throw GraalError.shouldNotReachHere(); 85169689Skan } 86169689Skan } 87169689Skan} 88169689Skan