Mercurial > hg > truffle
view graal/com.oracle.graal.lir/src/com/oracle/graal/lir/alloc/lsra/LinearScanRegisterAllocationPhase.java @ 21543:93c50cefb9e8
moved GraalInternalError to com.oracle.jvmci.common and renamed it to JVMCIError (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 25 May 2015 23:30:34 +0200 |
parents | 1c56b7be2731 |
children | b1530a6cce8c |
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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 java.util.*; import com.oracle.graal.api.code.*; import com.oracle.graal.compiler.common.cfg.*; import com.oracle.graal.debug.*; import com.oracle.graal.lir.gen.*; import com.oracle.graal.lir.gen.LIRGeneratorTool.SpillMoveFactory; import com.oracle.graal.lir.phases.*; final class LinearScanRegisterAllocationPhase extends AllocationPhase { private final LinearScan allocator; LinearScanRegisterAllocationPhase(LinearScan allocator) { this.allocator = allocator; } @Override protected <B extends AbstractBlockBase<B>> void run(TargetDescription target, LIRGenerationResult lirGenRes, List<B> codeEmittingOrder, List<B> linearScanOrder, SpillMoveFactory spillMoveFactory) { allocator.printIntervals("Before register allocation"); allocateRegisters(); allocator.printIntervals("After register allocation"); } void allocateRegisters() { try (Indent indent = Debug.logAndIndent("allocate registers")) { Interval precoloredIntervals; Interval notPrecoloredIntervals; Interval.Pair result = allocator.createUnhandledLists(LinearScan.IS_PRECOLORED_INTERVAL, LinearScan.IS_VARIABLE_INTERVAL); precoloredIntervals = result.first; notPrecoloredIntervals = result.second; // allocate cpu registers LinearScanWalker lsw; if (OptimizingLinearScanWalker.Options.LSRAOptimization.getValue()) { lsw = new OptimizingLinearScanWalker(allocator, precoloredIntervals, notPrecoloredIntervals); } else { lsw = new LinearScanWalker(allocator, precoloredIntervals, notPrecoloredIntervals); } lsw.walk(); lsw.finishAllocation(); } } }