LinearScanPhase.java revision 12968:4d8a004e5c6d 
1/*
2 * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
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22 */
23package org.graalvm.compiler.lir.alloc.lsra;
24
25import org.graalvm.compiler.core.common.alloc.RegisterAllocationConfig;
26import org.graalvm.compiler.lir.alloc.lsra.ssa.SSALinearScan;
27import org.graalvm.compiler.lir.gen.LIRGenerationResult;
28import org.graalvm.compiler.lir.gen.LIRGeneratorTool.MoveFactory;
29import org.graalvm.compiler.lir.phases.AllocationPhase;
30
31import jdk.vm.ci.code.TargetDescription;
32
33public final class LinearScanPhase extends AllocationPhase {
34
35    private boolean neverSpillConstants;
36
37    public void setNeverSpillConstants(boolean neverSpillConstants) {
38        this.neverSpillConstants = neverSpillConstants;
39    }
40
41    @Override
42    protected void run(TargetDescription target, LIRGenerationResult lirGenRes, AllocationContext context) {
43        MoveFactory spillMoveFactory = context.spillMoveFactory;
44        RegisterAllocationConfig registerAllocationConfig = context.registerAllocationConfig;
45        final LinearScan allocator = new SSALinearScan(target, lirGenRes, spillMoveFactory, registerAllocationConfig, lirGenRes.getLIR().linearScanOrder(), neverSpillConstants);
46        allocator.allocate(target, lirGenRes, context);
47    }
48}
49