| /* |
| * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package org.graalvm.compiler.lir.sparc; |
| |
| import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.HINT; |
| import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; |
| import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK; |
| import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.UNINITIALIZED; |
| import static jdk.vm.ci.code.ValueUtil.asRegister; |
| import static jdk.vm.ci.sparc.SPARCKind.WORD; |
| import static jdk.vm.ci.sparc.SPARCKind.XWORD; |
| |
| import org.graalvm.compiler.asm.sparc.SPARCAddress; |
| import org.graalvm.compiler.asm.sparc.SPARCAssembler.Asi; |
| import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; |
| import org.graalvm.compiler.core.common.LIRKind; |
| import org.graalvm.compiler.debug.GraalError; |
| import org.graalvm.compiler.lir.LIRInstructionClass; |
| import org.graalvm.compiler.lir.Opcode; |
| import org.graalvm.compiler.lir.asm.CompilationResultBuilder; |
| import org.graalvm.compiler.lir.gen.LIRGeneratorTool; |
| |
| import jdk.vm.ci.code.Register; |
| import jdk.vm.ci.code.ValueUtil; |
| import jdk.vm.ci.meta.AllocatableValue; |
| import jdk.vm.ci.meta.Value; |
| import jdk.vm.ci.sparc.SPARCKind; |
| |
| @Opcode("BSWAP") |
| public final class SPARCByteSwapOp extends SPARCLIRInstruction implements SPARCTailDelayedLIRInstruction { |
| public static final LIRInstructionClass<SPARCByteSwapOp> TYPE = LIRInstructionClass.create(SPARCByteSwapOp.class); |
| public static final SizeEstimate SIZE = SizeEstimate.create(3); |
| @Def({REG, HINT}) protected Value result; |
| @Use({REG}) protected Value input; |
| @Temp({REG}) protected Value tempIndex; |
| @Use({STACK, UNINITIALIZED}) protected AllocatableValue tmpSlot; |
| |
| public SPARCByteSwapOp(LIRGeneratorTool tool, Value result, Value input) { |
| super(TYPE, SIZE); |
| this.result = result; |
| this.input = input; |
| this.tmpSlot = tool.getResult().getFrameMapBuilder().allocateSpillSlot(LIRKind.value(XWORD)); |
| this.tempIndex = tool.newVariable(LIRKind.value(XWORD)); |
| } |
| |
| @Override |
| public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { |
| SPARCAddress addr = (SPARCAddress) crb.asAddress(tmpSlot); |
| SPARCMove.emitStore(input, addr, result.getPlatformKind(), SPARCDelayedControlTransfer.DUMMY, null, crb, masm); |
| if (addr.getIndex().equals(Register.None)) { |
| Register tempReg = ValueUtil.asRegister(tempIndex, XWORD); |
| masm.setx(addr.getDisplacement(), tempReg, false); |
| addr = new SPARCAddress(addr.getBase(), tempReg); |
| } |
| getDelayedControlTransfer().emitControlTransfer(crb, masm); |
| switch ((SPARCKind) input.getPlatformKind()) { |
| case WORD: |
| masm.lduwa(addr.getBase(), addr.getIndex(), asRegister(result, WORD), Asi.ASI_PRIMARY_LITTLE); |
| break; |
| case XWORD: |
| masm.ldxa(addr.getBase(), addr.getIndex(), asRegister(result, XWORD), Asi.ASI_PRIMARY_LITTLE); |
| break; |
| default: |
| throw GraalError.shouldNotReachHere(); |
| } |
| } |
| } |