/*
 *  Copyright 2013 Alexey Andreev.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.teavm.optimization;

import java.util.Arrays;
import java.util.List;
import org.teavm.model.ClassHolder;
import org.teavm.model.ListableClassHolderSource;
import org.teavm.model.MethodHolder;
import org.teavm.model.Program;
import org.teavm.model.util.ProgramUtils;

/**
 *
 * @author Alexey Andreev
 */
public class ClassSetOptimizer {
    private List<MethodOptimization> getOptimizations() {
        return Arrays.<MethodOptimization>asList(new ArrayUnwrapMotion(), new LoopInvariantMotion(),
                new GlobalValueNumbering(), new UnusedVariableElimination());
    }

    public void optimizeAll(ListableClassHolderSource classSource) {
        for (String className : classSource.getClassNames()) {
            ClassHolder cls = classSource.get(className);
            for (MethodHolder method : cls.getMethods()) {
                if (method.getProgram() != null && method.getProgram().basicBlockCount() > 0) {
                    Program program = ProgramUtils.copy(method.getProgram());
                    for (MethodOptimization optimization : getOptimizations()) {
                        optimization.optimize(method, program);
                    }
                    method.setProgram(program);
                }
            }
        }
    }
}
