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/*
 * Copyright (c) 2012, 2017, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * 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).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.oracle.svm.hosted.phases;

import static com.oracle.svm.core.util.VMError.shouldNotReachHere;

import java.util.List;

import org.graalvm.compiler.nodes.FixedGuardNode;
import org.graalvm.compiler.nodes.GuardNode;
import org.graalvm.compiler.nodes.StructuredGraph;
import org.graalvm.compiler.phases.Phase;

public class VerifyNoGuardsPhase extends Phase {

    @Override
    protected void run(StructuredGraph graph) {
        List guards = graph.getNodes().filter(GuardNode.class).snapshot();
        if (guards.size() > 0) {
            throw shouldNotReachHere("Graph contains GuardNode: method " + graph.method() + ", guards " + guards.toString());
        }
        List fixedGuards = graph.getNodes().filter(FixedGuardNode.class).snapshot();
        if (fixedGuards.size() > 0) {
            throw shouldNotReachHere("Graph contains FixedGuardNode: method " + graph.method() + ", guards " + fixedGuards.toString());
        }
    }
}