1/*
2 * Copyright (c) 2015, 2017, 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.
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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.trace.lsra;
24
25import org.graalvm.compiler.core.common.alloc.RegisterAllocationConfig;
26import org.graalvm.compiler.core.common.alloc.Trace;
27import org.graalvm.compiler.core.common.alloc.TraceBuilderResult;
28import org.graalvm.compiler.debug.DebugContext;
29import org.graalvm.compiler.debug.Indent;
30import org.graalvm.compiler.lir.alloc.trace.lsra.TraceLinearScanPhase.TraceLinearScan;
31import org.graalvm.compiler.lir.gen.LIRGenerationResult;
32import org.graalvm.compiler.lir.gen.LIRGeneratorTool.MoveFactory;
33
34import jdk.vm.ci.code.TargetDescription;
35
36final class TraceLinearScanRegisterAllocationPhase extends TraceLinearScanAllocationPhase {
37
38    @Override
39    protected void run(TargetDescription target, LIRGenerationResult lirGenRes, Trace trace, MoveFactory spillMoveFactory, RegisterAllocationConfig registerAllocationConfig,
40                    TraceBuilderResult traceBuilderResult, TraceLinearScan allocator) {
41        allocateRegisters(allocator);
42    }
43
44    @SuppressWarnings("try")
45    private static void allocateRegisters(TraceLinearScan allocator) {
46        DebugContext debug = allocator.getDebug();
47        try (Indent indent = debug.logAndIndent("allocate registers")) {
48            FixedInterval precoloredIntervals = allocator.createFixedUnhandledList();
49            TraceInterval notPrecoloredIntervals = allocator.createUnhandledListByFrom(TraceLinearScanPhase.IS_VARIABLE_INTERVAL);
50
51            // allocate cpu registers
52            TraceLinearScanWalker lsw = new TraceLinearScanWalker(allocator, precoloredIntervals, notPrecoloredIntervals);
53            lsw.walk();
54            lsw.finishAllocation();
55        }
56    }
57
58}
59