/*
 * Copyright (c) 2012, 2020, 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.amd64;

import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler;
import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
import org.graalvm.compiler.hotspot.HotSpotMarkId;
import org.graalvm.compiler.lir.LIRFrameState;
import org.graalvm.compiler.lir.LIRInstructionClass;
import org.graalvm.compiler.lir.Opcode;
import org.graalvm.compiler.lir.amd64.AMD64Call.DirectCallOp;
import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
import org.graalvm.compiler.nodes.CallTargetNode.InvokeKind;

import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
import jdk.vm.ci.meta.ResolvedJavaMethod;
import jdk.vm.ci.meta.Value;

A direct call that complies with the conventions for such calls in HotSpot. It doesn't use an
inline cache so it's just a patchable call site.
/**
 * A direct call that complies with the conventions for such calls in HotSpot. It doesn't use an
 * inline cache so it's just a patchable call site.
 */
@Opcode("CALL_DIRECT")
final class AMD64HotSpotDirectStaticCallOp extends DirectCallOp {
    public static final LIRInstructionClass<AMD64HotSpotDirectStaticCallOp> TYPE = LIRInstructionClass.create(AMD64HotSpotDirectStaticCallOp.class);

    private final InvokeKind invokeKind;
    private final GraalHotSpotVMConfig config;

    AMD64HotSpotDirectStaticCallOp(ResolvedJavaMethod target, Value result, Value[] parameters, Value[] temps, LIRFrameState state, InvokeKind invokeKind, GraalHotSpotVMConfig config) {
        super(TYPE, target, result, parameters, temps, state);
        assert invokeKind.isDirect();
        this.invokeKind = invokeKind;
        this.config = config;
    }

    @Override
    @SuppressWarnings("try")
    public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
        try (CompilationResultBuilder.CallContext callContext = crb.openCallContext(invokeKind.isDirect())) {
            crb.recordMark(invokeKind == InvokeKind.Static ? HotSpotMarkId.INVOKESTATIC : HotSpotMarkId.INVOKESPECIAL);
            if (config.supportsMethodHandleDeoptimizationEntry() && config.isMethodHandleCall((HotSpotResolvedJavaMethod) callTarget) && invokeKind != InvokeKind.Static) {
                crb.setNeedsMHDeoptHandler();
            }
            super.emitCode(crb, masm);
        }
    }
}