c2_globals_ppc.hpp

/*
 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
 * Copyright 2012, 2014 SAP AG. 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_PPC_VM_C2_GLOBALS_PPC_HPP
#define CPU_PPC_VM_C2_GLOBALS_PPC_HPP

#include "utilities/globalDefinitions.hpp"
#include "utilities/macros.hpp"

// Sets the default values for platform dependent flags used by the server compiler.
// (see c2_globals.hpp).

define_pd_global(bool, BackgroundCompilation,        true);
define_pd_global(bool, CICompileOSR,                 true);
define_pd_global(bool, InlineIntrinsics,             true);
define_pd_global(bool, PreferInterpreterNativeStubs, false);
define_pd_global(bool, ProfileTraps,                 true);
define_pd_global(bool, UseOnStackReplacement,        true);
define_pd_global(bool, ProfileInterpreter,           true);
define_pd_global(bool, TieredCompilation,            false);
define_pd_global(intx, CompileThreshold,             10000);
define_pd_global(intx, BackEdgeThreshold,            140000);

define_pd_global(intx, OnStackReplacePercentage,     140);
define_pd_global(intx, ConditionalMoveLimit,         3);
define_pd_global(intx, FLOATPRESSURE,                28);
define_pd_global(intx, FreqInlineSize,               175);
define_pd_global(intx, MinJumpTableSize,             10);
define_pd_global(intx, INTPRESSURE,                  25);
define_pd_global(intx, InteriorEntryAlignment,       16);
define_pd_global(intx, NewSizeThreadIncrease,        ScaleForWordSize(4*K));
define_pd_global(intx, RegisterCostAreaRatio,        16000);
define_pd_global(bool, UseTLAB,                      true);
define_pd_global(bool, ResizeTLAB,                   true);
define_pd_global(intx, LoopUnrollLimit,              60);

// Peephole and CISC spilling both break the graph, and so make the
// scheduler sick.
define_pd_global(bool, OptoPeephole,                 false);
define_pd_global(bool, UseCISCSpill,                 false);
define_pd_global(bool, OptoBundling,                 false);
// GL:
// Detected a problem with unscaled compressed oops and
// narrow_oop_use_complex_address() == false.
// -Djava.io.tmpdir=./tmp -jar SPECjvm2008.jar -ikv -wt 3 -it 3
//   -bt 1 --base compiler.sunflow
// fails in Lower.visitIf->translate->tranlate->translate and
// throws an unexpected NPE. A load and a store seem to be
// reordered.  Java reads about:
//   loc = x.f
//   x.f = 0
//   NullCheck loc
// While assembler reads:
//   x.f = 0
//   loc = x.f
//   NullCheck loc
define_pd_global(bool, OptoScheduling,               false);

define_pd_global(intx, InitialCodeCacheSize,         2048*K); // Integral multiple of CodeCacheExpansionSize
define_pd_global(intx, ReservedCodeCacheSize,        256*M);
define_pd_global(intx, CodeCacheExpansionSize,       64*K);

// Ergonomics related flags
define_pd_global(uint64_t,MaxRAM,                    4ULL*G);
define_pd_global(uintx, CodeCacheMinBlockLength,     4);
define_pd_global(uintx, CodeCacheMinimumUseSpace,    400*K);

define_pd_global(bool,  TrapBasedRangeChecks,        true);

// Heap related flags
define_pd_global(uintx,MetaspaceSize,                ScaleForWordSize(16*M));

// Ergonomics related flags
define_pd_global(bool, NeverActAsServerClassMachine, false);

#endif // CPU_PPC_VM_C2_GLOBALS_PPC_HPP