Mercurial > hg > truffle
view graal/com.oracle.graal.lir.sparc/src/com/oracle/graal/lir/sparc/SPARCDelayedControlTransfer.java @ 21359:c4b87ad2c4c8
Improve code generation for zero extend on AMD64.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Wed, 13 May 2015 11:53:17 +0200 |
parents | c88ab4f1f04a |
children | 6df25b1418be |
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/* * 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 com.oracle.graal.lir.sparc; import com.oracle.graal.asm.sparc.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.asm.*; /** * This interface is used for {@link LIRInstruction}s which provide a delay slot for one instruction * from another {@link LIRInstruction}. * * @see SPARCTailDelayedLIRInstruction */ public interface SPARCDelayedControlTransfer { SPARCDelayedControlTransfer DUMMY = new SPARCDelayedControlTransfer() { public void emitControlTransfer(CompilationResultBuilder crb, SPARCMacroAssembler masm) { // do nothing } @Override public String toString() { return "null"; } public void resetState() { } }; /** * This method must be called, to generate the control transfer, but without any Nop in the * delay slot. * * @param crb * @param masm */ void emitControlTransfer(CompilationResultBuilder crb, SPARCMacroAssembler masm); void resetState(); }