hotspot/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir/src/org/graalvm/compiler/lir/phases/PostAllocationOptimizationStage.java

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package org.graalvm.compiler.lir.phases;

import static org.graalvm.compiler.lir.phases.LIRPhase.Options.LIROptimization;

import org.graalvm.compiler.lir.ControlFlowOptimizer;
import org.graalvm.compiler.lir.EdgeMoveOptimizer;
import org.graalvm.compiler.lir.NullCheckOptimizer;
import org.graalvm.compiler.lir.RedundantMoveElimination;
import org.graalvm.compiler.lir.phases.PostAllocationOptimizationPhase.PostAllocationOptimizationContext;
import org.graalvm.compiler.lir.profiling.MethodProfilingPhase;
import org.graalvm.compiler.lir.profiling.MoveProfilingPhase;
import org.graalvm.compiler.options.NestedBooleanOptionValue;
import org.graalvm.compiler.options.Option;
import org.graalvm.compiler.options.OptionType;
import org.graalvm.compiler.options.OptionValue;

public class PostAllocationOptimizationStage extends LIRPhaseSuite<PostAllocationOptimizationContext> {
    public static class Options {
        // @formatter:off
        @Option(help = "", type = OptionType.Debug)
        public static final NestedBooleanOptionValue LIROptEdgeMoveOptimizer = new NestedBooleanOptionValue(LIROptimization, true);
        @Option(help = "", type = OptionType.Debug)
        public static final NestedBooleanOptionValue LIROptControlFlowOptimizer = new NestedBooleanOptionValue(LIROptimization, true);
        @Option(help = "", type = OptionType.Debug)
        public static final NestedBooleanOptionValue LIROptRedundantMoveElimination = new NestedBooleanOptionValue(LIROptimization, true);
        @Option(help = "", type = OptionType.Debug)
        public static final NestedBooleanOptionValue LIROptNullCheckOptimizer = new NestedBooleanOptionValue(LIROptimization, true);
        @Option(help = "Enables profiling of move types on LIR level. " +
                       "Move types are for example stores (register to stack), " +
                       "constant loads (constant to register) or copies (register to register).", type = OptionType.Debug)
        public static final OptionValue<Boolean> LIRProfileMoves = new OptionValue<>(false);
        @Option(help = "Enables profiling of methods.", type = OptionType.Debug)
        public static final OptionValue<Boolean> LIRProfileMethods = new OptionValue<>(false);
        // @formatter:on
    }

    public PostAllocationOptimizationStage() {
        if (Options.LIROptEdgeMoveOptimizer.getValue()) {
            appendPhase(new EdgeMoveOptimizer());
        }
        if (Options.LIROptControlFlowOptimizer.getValue()) {
            appendPhase(new ControlFlowOptimizer());
        }
        if (Options.LIROptRedundantMoveElimination.getValue()) {
            appendPhase(new RedundantMoveElimination());
        }
        if (Options.LIROptNullCheckOptimizer.getValue()) {
            appendPhase(new NullCheckOptimizer());
        }
        if (Options.LIRProfileMoves.getValue()) {
            appendPhase(new MoveProfilingPhase());
        }
        if (Options.LIRProfileMethods.getValue()) {
            appendPhase(new MethodProfilingPhase());
        }
    }
}