/*

 * Copyright (c) 2008, 2017, 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_ARM_VM_GLOBALS_ARM_HPP

#define CPU_ARM_VM_GLOBALS_ARM_HPP

//

// Sets the default values for platform dependent flags used by the runtime system.

// (see globals.hpp)

//

define_pd_global(bool,  ShareVtableStubs,         true);

define_pd_global(bool,  ImplicitNullChecks,       true);  // Generate code for implicit null checks

define_pd_global(bool,  UncommonNullCast,         true);  // Uncommon-trap NULLs past to check cast

define_pd_global(bool,  TrapBasedNullChecks,      false); // Not needed

define_pd_global(uintx, CodeCacheSegmentSize, 64 TIERED_ONLY(+64)); // Tiered compilation has large code-entry alignment.

define_pd_global(intx,  CodeEntryAlignment,       16);

define_pd_global(intx,  OptoLoopAlignment,        16);

define_pd_global(bool,  NeedsDeoptSuspend,        false); // only register window machines need this

#define DEFAULT_STACK_YELLOW_PAGES (2)

#define DEFAULT_STACK_RED_PAGES (1)

#define DEFAULT_STACK_SHADOW_PAGES (5 DEBUG_ONLY(+1))

#define DEFAULT_STACK_RESERVED_PAGES (0)

#define MIN_STACK_YELLOW_PAGES DEFAULT_STACK_YELLOW_PAGES

#define MIN_STACK_RED_PAGES    DEFAULT_STACK_RED_PAGES

#define MIN_STACK_SHADOW_PAGES DEFAULT_STACK_SHADOW_PAGES

#define MIN_STACK_RESERVED_PAGES (0)

define_pd_global(intx,  StackYellowPages,         DEFAULT_STACK_YELLOW_PAGES);

define_pd_global(intx,  StackRedPages,            DEFAULT_STACK_RED_PAGES);

define_pd_global(intx,  StackShadowPages,         DEFAULT_STACK_SHADOW_PAGES);

define_pd_global(intx,  StackReservedPages,       DEFAULT_STACK_RESERVED_PAGES);

define_pd_global(intx,  InlineFrequencyCount,     50);

#if  defined(COMPILER1) || defined(COMPILER2)

define_pd_global(intx,  InlineSmallCode,          1500);

#endif

define_pd_global(bool,  RewriteBytecodes,         true);

define_pd_global(bool,  RewriteFrequentPairs,     true);

define_pd_global(bool,  UseMembar,                true);

define_pd_global(bool,  PreserveFramePointer,     false);

// GC Ergo Flags

define_pd_global(size_t, CMSYoungGenPerWorker,    16*M);  // default max size of CMS young gen, per GC worker thread

define_pd_global(uintx, TypeProfileLevel, 0);

// No performance work done here yet.

define_pd_global(bool, CompactStrings, false);

define_pd_global(intx, InitArrayShortSize, 8*BytesPerLong);

define_pd_global(bool, ThreadLocalHandshakes, false);

#define ARCH_FLAGS(develop, \

                   product, \

                   diagnostic, \

                   experimental, \

                   notproduct, \

                   range, \

                   constraint, \

                   writeable) \

                                                                                        \

  develop(bool, VerifyInterpreterStackTop, false,                                       \

          "Verify interpreter stack top at every stack expansion (AArch64 only)")       \

                                                                                        \

  develop(bool, ZapHighNonSignificantBits, false,                                       \

          "Zap high non-significant bits of values (AArch64 only)")                     \

                                                                                        \

#endif // CPU_ARM_VM_GLOBALS_ARM_HPP