hotspot/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.lir/src/org/graalvm/compiler/lir/alloc/lsra/LinearScanPhase.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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).
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package org.graalvm.compiler.lir.alloc.lsra;

import org.graalvm.compiler.core.common.alloc.RegisterAllocationConfig;
import org.graalvm.compiler.lir.alloc.lsra.ssa.SSALinearScan;
import org.graalvm.compiler.lir.gen.LIRGenerationResult;
import org.graalvm.compiler.lir.gen.LIRGeneratorTool.MoveFactory;
import org.graalvm.compiler.lir.phases.AllocationPhase;

import jdk.vm.ci.code.TargetDescription;

public final class LinearScanPhase extends AllocationPhase {

    private boolean neverSpillConstants;

    public void setNeverSpillConstants(boolean neverSpillConstants) {
        this.neverSpillConstants = neverSpillConstants;
    }

    @Override
    protected void run(TargetDescription target, LIRGenerationResult lirGenRes, AllocationContext context) {
        MoveFactory spillMoveFactory = context.spillMoveFactory;
        RegisterAllocationConfig registerAllocationConfig = context.registerAllocationConfig;
        final LinearScan allocator = new SSALinearScan(target, lirGenRes, spillMoveFactory, registerAllocationConfig, lirGenRes.getLIR().linearScanOrder(), neverSpillConstants);
        allocator.allocate(target, lirGenRes, spillMoveFactory, registerAllocationConfig);
    }
}