813dfa4e34
Disable AllocatePrefetchDistance for Zero. Reviewed-by: coleenp
46 lines
1.7 KiB
C++
46 lines
1.7 KiB
C++
/*
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* Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
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* Copyright 2009 Red Hat, Inc.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "assembler_zero.inline.hpp"
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#include "memory/resourceArea.hpp"
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#include "runtime/java.hpp"
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#include "runtime/stubCodeGenerator.hpp"
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#include "vm_version_zero.hpp"
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void VM_Version::initialize() {
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// This machine does not allow unaligned memory accesses
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if (! FLAG_IS_DEFAULT(UseUnalignedAccesses)) {
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warning("Unaligned memory access is not available on this CPU");
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FLAG_SET_DEFAULT(UseUnalignedAccesses, false);
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}
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// Disable prefetching for Zero
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if (! FLAG_IS_DEFAULT(AllocatePrefetchDistance)) {
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warning("Prefetching is not available for a Zero VM");
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}
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FLAG_SET_DEFAULT(AllocatePrefetchDistance, 0);
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}
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