/*
* Copyright ( c ) 2000 , 2021 , Oracle and / or its affiliates . All rights reserved .
* Copyright ( c ) 2012 , 2020 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 "runtime/globals_extension.hpp"
#include "runtime/vm_version.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 (!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 );
}
}
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