view hotspot/src/cpu/ppc/vm/c2_globals_ppc.hpp @ 45871:878e21603932

author duke
date Thu, 24 Aug 2017 16:29:13 +0200
parents 41b19cb98a96
children 6057dbfd2622
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 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
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 * 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
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#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,            true);
define_pd_global(intx, CompileThreshold,             10000);

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,                  26);
define_pd_global(intx, InteriorEntryAlignment,       16);
define_pd_global(size_t, 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);
define_pd_global(intx, LoopPercentProfileLimit,      10);
define_pd_global(intx, PostLoopMultiversioning,      false);

// 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);
define_pd_global(bool, OptoRegScheduling,            false);
define_pd_global(bool, SuperWordLoopUnrollAnalysis,  false);
// GL:
// Detected a problem with unscaled compressed oops and
// narrow_oop_use_complex_address() == false.
// -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(bool, IdealizeClearArrayNode,       true);

define_pd_global(intx, InitialCodeCacheSize,         2048*K); // Integral multiple of CodeCacheExpansionSize
define_pd_global(intx, ReservedCodeCacheSize,        256*M);
define_pd_global(intx, NonProfiledCodeHeapSize,      125*M);
define_pd_global(intx, ProfiledCodeHeapSize,         126*M);
define_pd_global(intx, NonNMethodCodeHeapSize,       5*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(size_t, MetaspaceSize,              ScaleForWordSize(16*M));

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