Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.lir/src/com/oracle/graal/lir/alloc/lsra/SSILinearScanEliminateSpillMovePhase.java @ 22354:06a9e6737dcf
Drop initial version of the trace based register allocator.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Fri, 24 Jul 2015 10:55:33 +0200 |
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/* * Copyright (c) 2015, 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 com.oracle.graal.lir.alloc.lsra; import com.oracle.graal.compiler.common.cfg.*; import com.oracle.graal.lir.StandardOp.MoveOp; public class SSILinearScanEliminateSpillMovePhase extends LinearScanEliminateSpillMovePhase { public SSILinearScanEliminateSpillMovePhase(LinearScan allocator) { super(allocator); } @Override protected int firstInstructionOfInterest() { // also look at Labels as they define PHI values return 0; } @Override protected boolean canEliminateSpillMove(AbstractBlockBase<?> block, MoveOp move) { // TODO (je) do not eliminate spill moves yet! return false; } }