| /* |
| * Copyright (c) 2013, 2014, 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 org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; |
| import org.graalvm.compiler.lir.LIRInstruction; |
| |
| /** |
| * Implementors of this interface are able to place its last instruction into the delay slot of a |
| * {@link SPARCDelayedControlTransfer} instruction. |
| * |
| * The implementor has to do following steps to emit code into the delay slot for the |
| * DelayedControlTransfer instruction: |
| * <ol> |
| * <li>Emit everything up to the second last instruction.</li> |
| * <li>Call |
| * {@link SPARCDelayedControlTransfer#emitControlTransfer(org.graalvm.compiler.lir.asm.CompilationResultBuilder, SPARCMacroAssembler)} |
| * to let the DelayedControlTransfer instruction emit its own code (But must not stuff the delay |
| * slot with Nop)</li> |
| * <li>emit the last instruction for this {@link LIRInstruction}</li> |
| * </ol> |
| * |
| * Note: If this instruction decides not to use the delay slot, it can skip the call of |
| * {@link SPARCDelayedControlTransfer#emitControlTransfer(org.graalvm.compiler.lir.asm.CompilationResultBuilder, SPARCMacroAssembler)} |
| * . The DelayedControlTransfer instruction will emit the code just with Nop in the delay slot. |
| */ |
| public interface SPARCTailDelayedLIRInstruction extends SPARCLIRInstructionMixin { |
| default void setDelayedControlTransfer(SPARCDelayedControlTransfer holder) { |
| getSPARCLIRInstructionStore().delayedControlTransfer = holder; |
| } |
| |
| default SPARCDelayedControlTransfer getDelayedControlTransfer() { |
| return getSPARCLIRInstructionStore().delayedControlTransfer; |
| } |
| } |
