hotspot/src/cpu/sparc/vm/c2_globals_sparc.hpp
author duke
Sat, 01 Dec 2007 00:00:00 +0000
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/*
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 * Copyright 2000-2007 Sun Microsystems, Inc.  All Rights Reserved.
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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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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// Sets the default values for platform dependent flags used by the server compiler.
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// (see c2_globals.hpp).  Alpha-sorted.
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define_pd_global(bool, BackgroundCompilation,        true);
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define_pd_global(bool, CICompileOSR,                 true);
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define_pd_global(bool, InlineIntrinsics,             false);
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define_pd_global(bool, PreferInterpreterNativeStubs, false);
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define_pd_global(bool, ProfileTraps,                 true);
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define_pd_global(bool, UseOnStackReplacement,        true);
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#ifdef CC_INTERP
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define_pd_global(bool, ProfileInterpreter,           false);
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#else
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define_pd_global(bool, ProfileInterpreter,           true);
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#endif // CC_INTERP
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define_pd_global(bool, TieredCompilation,            false);
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#ifdef TIERED
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define_pd_global(intx, CompileThreshold,             1000);
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define_pd_global(intx, BackEdgeThreshold,            14000);
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#else
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define_pd_global(intx, CompileThreshold,             10000);
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define_pd_global(intx, BackEdgeThreshold,            140000);
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#endif // TIERED
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define_pd_global(intx, Tier2CompileThreshold,        10000); // unused level
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define_pd_global(intx, Tier3CompileThreshold,        10000);
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define_pd_global(intx, Tier4CompileThreshold,        40000);
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define_pd_global(intx, Tier2BackEdgeThreshold,       100000);
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define_pd_global(intx, Tier3BackEdgeThreshold,       100000);
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define_pd_global(intx, Tier4BackEdgeThreshold,       100000);
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define_pd_global(intx, OnStackReplacePercentage,     140);
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define_pd_global(intx, ConditionalMoveLimit,         4);
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define_pd_global(intx, FLOATPRESSURE,                52);  // C2 on V9 gets to use all the float/double registers
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define_pd_global(intx, FreqInlineSize,               175);
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define_pd_global(intx, INTPRESSURE,                  48);  // large register set
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define_pd_global(intx, InteriorEntryAlignment,       16);  // = CodeEntryAlignment
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define_pd_global(intx, NewRatio,                     2);
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define_pd_global(intx, NewSizeThreadIncrease, ScaleForWordSize(4*K));
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// The default setting 16/16 seems to work best.
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// (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.)
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define_pd_global(intx, OptoLoopAlignment,            16);  // = 4*wordSize
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define_pd_global(intx, RegisterCostAreaRatio,        12000);
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define_pd_global(bool, UseTLAB,                      true);
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define_pd_global(bool, ResizeTLAB,                   true);
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define_pd_global(intx, LoopUnrollLimit,              60); // Design center runs on 1.3.1
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// Peephole and CISC spilling both break the graph, and so makes the
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// scheduler sick.
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define_pd_global(bool, OptoPeephole,                 false);
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define_pd_global(bool, UseCISCSpill,                 false);
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define_pd_global(bool, OptoBundling,                 false);
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define_pd_global(bool, OptoScheduling,               true);
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#ifdef _LP64
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// We need to make sure that all generated code is within
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// 2 gigs of the libjvm.so runtime routines so we can use
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// the faster "call" instruction rather than the expensive
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// sequence of instructions to load a 64 bit pointer.
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//
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// InitialCodeCacheSize derived from specjbb2000 run.
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define_pd_global(intx, InitialCodeCacheSize,     2048*K); // Integral multiple of CodeCacheExpansionSize
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define_pd_global(intx, ReservedCodeCacheSize,    48*M);
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define_pd_global(intx, CodeCacheExpansionSize,   64*K);
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// Ergonomics related flags
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define_pd_global(uintx, DefaultMaxRAM,           32*G);
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#else
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// InitialCodeCacheSize derived from specjbb2000 run.
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define_pd_global(intx, InitialCodeCacheSize,     1536*K); // Integral multiple of CodeCacheExpansionSize
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define_pd_global(intx, ReservedCodeCacheSize,    32*M);
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define_pd_global(intx, CodeCacheExpansionSize,   32*K);
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// Ergonomics related flags
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define_pd_global(uintx, DefaultMaxRAM,           1*G);
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#endif
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define_pd_global(uintx,CodeCacheMinBlockLength,  4);
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// Heap related flags
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define_pd_global(uintx, PermSize,    ScaleForWordSize(16*M));
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define_pd_global(uintx, MaxPermSize, ScaleForWordSize(64*M));
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// Ergonomics related flags
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define_pd_global(bool, NeverActAsServerClassMachine, false);