1/*
2 * Copyright (c) 2008, 2015, 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.
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23 */
24
25#ifndef CPU_ARM_VM_C2_GLOBALS_ARM_HPP
26#define CPU_ARM_VM_C2_GLOBALS_ARM_HPP
27
28#include "utilities/globalDefinitions.hpp"
29#include "utilities/macros.hpp"
30
31//
32// Sets the default values for platform dependent flags used by the server compiler.
33// (see c2_globals.hpp).  Alpha-sorted.
34
35define_pd_global(bool, BackgroundCompilation,        true);
36define_pd_global(bool, CICompileOSR,                 true);
37define_pd_global(bool, InlineIntrinsics,             false);
38define_pd_global(bool, PreferInterpreterNativeStubs, false);
39define_pd_global(bool, ProfileTraps,                 true);
40define_pd_global(bool, UseOnStackReplacement,        true);
41define_pd_global(bool, ProfileInterpreter,           true);
42#ifdef AARCH64
43define_pd_global(bool, TieredCompilation,            trueInTiered);
44#else
45define_pd_global(bool, TieredCompilation,            false);
46#endif
47define_pd_global(intx, CompileThreshold,             10000);
48
49define_pd_global(intx, OnStackReplacePercentage,     140);
50define_pd_global(intx, ConditionalMoveLimit,         4);
51// C2 gets to use all the float/double registers
52#ifdef AARCH64
53define_pd_global(intx, FLOATPRESSURE,                31);
54#else
55define_pd_global(intx, FLOATPRESSURE,                30);
56#endif
57define_pd_global(intx, FreqInlineSize,               175);
58#ifdef AARCH64
59define_pd_global(intx, INTPRESSURE,                  27);
60#else
61define_pd_global(intx, INTPRESSURE,                  12);
62#endif
63define_pd_global(intx, InteriorEntryAlignment,       16);  // = CodeEntryAlignment
64define_pd_global(size_t, NewSizeThreadIncrease,      ScaleForWordSize(4*K));
65// The default setting 16/16 seems to work best.
66// (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.)
67//define_pd_global(intx, OptoLoopAlignment,            16);  // = 4*wordSize
68define_pd_global(intx, RegisterCostAreaRatio,        16000);
69define_pd_global(bool, UseTLAB,                      true);
70define_pd_global(bool, ResizeTLAB,                   true);
71define_pd_global(intx, LoopUnrollLimit,              60); // Design center runs on 1.3.1
72define_pd_global(intx, LoopPercentProfileLimit,      10);
73define_pd_global(intx, MinJumpTableSize,             16);
74
75// Peephole and CISC spilling both break the graph, and so makes the
76// scheduler sick.
77define_pd_global(bool, OptoPeephole,                 false);
78define_pd_global(bool, UseCISCSpill,                 false);
79define_pd_global(bool, OptoBundling,                 false);
80define_pd_global(bool, OptoScheduling,               true);
81define_pd_global(bool, OptoRegScheduling,            false);
82define_pd_global(bool, SuperWordLoopUnrollAnalysis,  false);
83define_pd_global(bool, IdealizeClearArrayNode,       true);
84
85#ifdef _LP64
86// We need to make sure that all generated code is within
87// 2 gigs of the libjvm.so runtime routines so we can use
88// the faster "call" instruction rather than the expensive
89// sequence of instructions to load a 64 bit pointer.
90//
91// InitialCodeCacheSize derived from specjbb2000 run.
92define_pd_global(size_t, InitialCodeCacheSize,       2048*K); // Integral multiple of CodeCacheExpansionSize
93define_pd_global(size_t, ReservedCodeCacheSize,      48*M);
94define_pd_global(size_t, NonProfiledCodeHeapSize,    21*M);
95define_pd_global(size_t, ProfiledCodeHeapSize,       22*M);
96define_pd_global(size_t, NonNMethodCodeHeapSize,     5*M );
97define_pd_global(size_t, CodeCacheExpansionSize,     64*K);
98
99// Ergonomics related flags
100define_pd_global(uint64_t, MaxRAM,                   128ULL*G);
101#else
102// InitialCodeCacheSize derived from specjbb2000 run.
103define_pd_global(size_t, InitialCodeCacheSize,       1536*K); // Integral multiple of CodeCacheExpansionSize
104define_pd_global(size_t, ReservedCodeCacheSize,      32*M);
105define_pd_global(size_t, NonProfiledCodeHeapSize,    13*M);
106define_pd_global(size_t, ProfiledCodeHeapSize,       14*M);
107define_pd_global(size_t, NonNMethodCodeHeapSize,     5*M );
108define_pd_global(size_t, CodeCacheExpansionSize,     32*K);
109// Ergonomics related flags
110define_pd_global(uint64_t, MaxRAM,                   4ULL*G);
111#endif
112define_pd_global(uintx, CodeCacheMinBlockLength,     4);
113define_pd_global(size_t, CodeCacheMinimumUseSpace,   400*K);
114
115define_pd_global(bool,  TrapBasedRangeChecks,        false); // Not needed
116
117// Heap related flags
118define_pd_global(size_t, MetaspaceSize,              ScaleForWordSize(16*M));
119
120// Ergonomics related flags
121define_pd_global(bool, NeverActAsServerClassMachine, false);
122
123#endif // CPU_ARM_VM_C2_GLOBALS_ARM_HPP
124