/*

 * Copyright (c) 2014, 2016, 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.

 *

 * 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

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package org.graalvm.compiler.hotspot.replacements;

import static org.graalvm.compiler.replacements.SnippetTemplate.DEFAULT_REPLACER;

import static org.graalvm.compiler.replacements.nodes.CStringConstant.cstring;

import org.graalvm.compiler.api.replacements.Snippet;

import org.graalvm.compiler.api.replacements.Snippet.ConstantParameter;

import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor;

import org.graalvm.compiler.debug.DebugHandlersFactory;

import org.graalvm.compiler.graph.Node.ConstantNodeParameter;

import org.graalvm.compiler.graph.Node.NodeIntrinsic;

import org.graalvm.compiler.hotspot.meta.HotSpotProviders;

import org.graalvm.compiler.hotspot.nodes.StubStartNode;

import org.graalvm.compiler.nodes.StructuredGraph;

import org.graalvm.compiler.nodes.extended.ForeignCallNode;

import org.graalvm.compiler.nodes.spi.LoweringTool;

import org.graalvm.compiler.options.OptionValues;

import org.graalvm.compiler.replacements.SnippetTemplate.AbstractTemplates;

import org.graalvm.compiler.replacements.SnippetTemplate.Arguments;

import org.graalvm.compiler.replacements.SnippetTemplate.SnippetInfo;

import org.graalvm.compiler.replacements.Snippets;

import org.graalvm.compiler.replacements.nodes.AssertionNode;

import org.graalvm.compiler.word.Word;

import jdk.vm.ci.code.TargetDescription;

public class AssertionSnippets implements Snippets {

    /**

     * This call can only be used with true for the "vmError" parameter, so that it can be

     * configured to be a leaf method.

     */

    public static final ForeignCallDescriptor ASSERTION_VM_MESSAGE_C = new ForeignCallDescriptor("assertionVmMessageC", void.class, boolean.class, Word.class, long.class, long.class, long.class);

    @Snippet

    public static void assertion(boolean condition, @ConstantParameter String message) {

        if (!condition) {

            vmMessageC(ASSERTION_VM_MESSAGE_C, true, cstring(message), 0L, 0L, 0L);

        }

    }

    @Snippet

    public static void stubAssertion(boolean condition, @ConstantParameter String message) {

        if (!condition) {

            vmMessageC(ASSERTION_VM_MESSAGE_C, true, cstring(message), 0L, 0L, 0L);

        }

    }

    @NodeIntrinsic(ForeignCallNode.class)

    static native void vmMessageC(@ConstantNodeParameter ForeignCallDescriptor stubPrintfC, boolean vmError, Word format, long v1, long v2, long v3);

    public static class Templates extends AbstractTemplates {

        private final SnippetInfo assertion = snippet(AssertionSnippets.class, "assertion");

        private final SnippetInfo stubAssertion = snippet(AssertionSnippets.class, "stubAssertion");

        public Templates(OptionValues options, Iterable<DebugHandlersFactory> factories, HotSpotProviders providers, TargetDescription target) {

            super(options, factories, providers, providers.getSnippetReflection(), target);

        }

        public void lower(AssertionNode assertionNode, LoweringTool tool) {

            StructuredGraph graph = assertionNode.graph();

            Arguments args = new Arguments(graph.start() instanceof StubStartNode ? stubAssertion : assertion, graph.getGuardsStage(), tool.getLoweringStage());

            args.add("condition", assertionNode.condition());

            args.addConst("message", "failed runtime assertion in snippet/stub: " + assertionNode.message() + " (" + graph.method() + ")");

            template(assertionNode.getDebug(), args).instantiate(providers.getMetaAccess(), assertionNode, DEFAULT_REPLACER, args);

        }

    }

}