/*

 * Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.

 * Copyright (c) 2012, 2018 SAP SE. 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.

 *

 */

#include "precompiled.hpp"

#include "opto/compile.hpp"

#include "opto/node.hpp"

#include "runtime/globals.hpp"

#include "utilities/debug.hpp"

// Processor dependent initialization of C2 compiler for ppc.

void Compile::pd_compiler2_init() {

  // Power7 and later.

  if (PowerArchitecturePPC64 > 6) {

    if (FLAG_IS_DEFAULT(UsePopCountInstruction)) {

      FLAG_SET_ERGO(UsePopCountInstruction, true);

    }

  }

  if (PowerArchitecturePPC64 == 6) {

    if (FLAG_IS_DEFAULT(InsertEndGroupPPC64)) {

      FLAG_SET_ERGO(InsertEndGroupPPC64, true);

    }

  }

  if (!VM_Version::has_isel() && FLAG_IS_DEFAULT(ConditionalMoveLimit)) {

    FLAG_SET_ERGO(ConditionalMoveLimit, 0);

  }

  if (OptimizeFill) {

    warning("OptimizeFill is not supported on this CPU.");

    FLAG_SET_DEFAULT(OptimizeFill, false);

  }

}