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/*
* Copyright (c) 2013, Red Hat Inc.
* Copyright (c) 2000, 2011, 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.
*
*/
#ifndef CPU_AARCH64_VM_GLOBALS_AARCH64_HPP
#define CPU_AARCH64_VM_GLOBALS_AARCH64_HPP
#include "utilities/globalDefinitions.hpp"
#include "utilities/macros.hpp"
// Sets the default values for platform dependent flags used by the runtime system.
// (see globals.hpp)
define_pd_global(bool, ConvertSleepToYield, true);
define_pd_global(bool, ShareVtableStubs, true);
define_pd_global(bool, CountInterpCalls, true);
define_pd_global(bool, NeedsDeoptSuspend, false); // only register window machines need this
define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks
define_pd_global(bool, TrapBasedNullChecks, false);
define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs passed to check cast
// See 4827828 for this change. There is no globals_core_i486.hpp. I can't
// assign a different value for C2 without touching a number of files. Use
// #ifdef to minimize the change as it's late in Mantis. -- FIXME.
// c1 doesn't have this problem because the fix to 4858033 assures us
// the the vep is aligned at CodeEntryAlignment whereas c2 only aligns
// the uep and the vep doesn't get real alignment but just slops on by
// only assured that the entry instruction meets the 5 byte size requirement.
#ifdef COMPILER2
define_pd_global(intx, CodeEntryAlignment, 64);
#else
define_pd_global(intx, CodeEntryAlignment, 16);
#endif // COMPILER2
define_pd_global(intx, OptoLoopAlignment, 16);
define_pd_global(intx, InlineFrequencyCount, 100);
define_pd_global(intx, StackYellowPages, 2);
define_pd_global(intx, StackRedPages, 1);
define_pd_global(intx, StackShadowPages, 4 DEBUG_ONLY(+5));
define_pd_global(intx, PreInflateSpin, 10);
define_pd_global(bool, RewriteBytecodes, true);
define_pd_global(bool, RewriteFrequentPairs, false);
define_pd_global(bool, UseMembar, true);
// GC Ergo Flags
define_pd_global(uintx, CMSYoungGenPerWorker, 64*M); // default max size of CMS young gen, per GC worker thread
define_pd_global(uintx, TypeProfileLevel, 0);
#if defined(COMPILER1) || defined(COMPILER2)
define_pd_global(intx, InlineSmallCode, 1000);
#endif
#ifdef BUILTIN_SIM
#define UseBuiltinSim true
#define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \
\
product(bool, NotifySimulator, UseBuiltinSim, \
"tell the AArch64 sim where we are in method code") \
\
product(bool, UseSimulatorCache, false, \
"tell sim to cache memory updates until exclusive op occurs") \
\
product(bool, DisableBCCheck, true, \
"tell sim not to invoke bccheck callback") \
\
product(bool, NearCpool, true, \
"constant pool is close to instructions") \
\
product(bool, DeoptimizeWhenPatching, true, \
"doptimize instead of patching instructions") \
\
notproduct(bool, UseAcqRelForVolatileFields, false, \
"Use acquire and release insns for volatile fields")
// Don't attempt to use Neon on builtin sim until builtin sim supports it
#define UseNeon false
#else
#define UseBuiltinSim false
#define NotifySimulator false
#define UseSimulatorCache false
#define DisableBCCheck true
#define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \
\
product(bool, NearCpool, true, \
"constant pool is close to instructions") \
\
product(bool, DeoptimizeWhenPatching, true, \
"doptimize instead of patching instructions") \
\
notproduct(bool, UseAcqRelForVolatileFields, false, \
"Use acquire and release insns for volatile fields") \
product(bool, UseNeon, false, \
"Use Neon for CRC32 computation")
#endif
#endif // CPU_AARCH64_VM_GLOBALS_AARCH64_HPP
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