c2_globals_sparc.hpp revision 1472:c18cbe5936b8 
1/*
2 * Copyright (c) 2000, 2007, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25// Sets the default values for platform dependent flags used by the server compiler.
26// (see c2_globals.hpp).  Alpha-sorted.
27
28define_pd_global(bool, BackgroundCompilation,        true);
29define_pd_global(bool, CICompileOSR,                 true);
30define_pd_global(bool, InlineIntrinsics,             false);
31define_pd_global(bool, PreferInterpreterNativeStubs, false);
32define_pd_global(bool, ProfileTraps,                 true);
33define_pd_global(bool, UseOnStackReplacement,        true);
34#ifdef CC_INTERP
35define_pd_global(bool, ProfileInterpreter,           false);
36#else
37define_pd_global(bool, ProfileInterpreter,           true);
38#endif // CC_INTERP
39define_pd_global(bool, TieredCompilation,            false);
40#ifdef TIERED
41define_pd_global(intx, CompileThreshold,             1000);
42define_pd_global(intx, BackEdgeThreshold,            14000);
43#else
44define_pd_global(intx, CompileThreshold,             10000);
45define_pd_global(intx, BackEdgeThreshold,            140000);
46#endif // TIERED
47
48define_pd_global(intx, Tier2CompileThreshold,        10000); // unused level
49define_pd_global(intx, Tier3CompileThreshold,        10000);
50define_pd_global(intx, Tier4CompileThreshold,        40000);
51
52define_pd_global(intx, Tier2BackEdgeThreshold,       100000);
53define_pd_global(intx, Tier3BackEdgeThreshold,       100000);
54define_pd_global(intx, Tier4BackEdgeThreshold,       100000);
55
56define_pd_global(intx, OnStackReplacePercentage,     140);
57define_pd_global(intx, ConditionalMoveLimit,         4);
58define_pd_global(intx, FLOATPRESSURE,                52);  // C2 on V9 gets to use all the float/double registers
59define_pd_global(intx, FreqInlineSize,               175);
60define_pd_global(intx, INTPRESSURE,                  48);  // large register set
61define_pd_global(intx, InteriorEntryAlignment,       16);  // = CodeEntryAlignment
62define_pd_global(intx, NewSizeThreadIncrease, ScaleForWordSize(4*K));
63define_pd_global(intx, RegisterCostAreaRatio,        12000);
64define_pd_global(bool, UseTLAB,                      true);
65define_pd_global(bool, ResizeTLAB,                   true);
66define_pd_global(intx, LoopUnrollLimit,              60); // Design center runs on 1.3.1
67
68// Peephole and CISC spilling both break the graph, and so makes the
69// scheduler sick.
70define_pd_global(bool, OptoPeephole,                 false);
71define_pd_global(bool, UseCISCSpill,                 false);
72define_pd_global(bool, OptoBundling,                 false);
73define_pd_global(bool, OptoScheduling,               true);
74
75#ifdef _LP64
76// We need to make sure that all generated code is within
77// 2 gigs of the libjvm.so runtime routines so we can use
78// the faster "call" instruction rather than the expensive
79// sequence of instructions to load a 64 bit pointer.
80//
81// InitialCodeCacheSize derived from specjbb2000 run.
82define_pd_global(intx, InitialCodeCacheSize,         2048*K); // Integral multiple of CodeCacheExpansionSize
83define_pd_global(intx, ReservedCodeCacheSize,        48*M);
84define_pd_global(intx, CodeCacheExpansionSize,       64*K);
85
86// Ergonomics related flags
87define_pd_global(uint64_t,MaxRAM,                    128ULL*G);
88#else
89// InitialCodeCacheSize derived from specjbb2000 run.
90define_pd_global(intx, InitialCodeCacheSize,         1536*K); // Integral multiple of CodeCacheExpansionSize
91define_pd_global(intx, ReservedCodeCacheSize,        32*M);
92define_pd_global(intx, CodeCacheExpansionSize,       32*K);
93// Ergonomics related flags
94define_pd_global(uint64_t,MaxRAM,                    4ULL*G);
95#endif
96define_pd_global(uintx,CodeCacheMinBlockLength,      4);
97
98// Heap related flags
99define_pd_global(uintx,PermSize,    ScaleForWordSize(16*M));
100define_pd_global(uintx,MaxPermSize, ScaleForWordSize(64*M));
101
102// Ergonomics related flags
103define_pd_global(bool, NeverActAsServerClassMachine, false);
104