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src/cpu/x86/vm/globals_x86.hpp@d8ce2825b193
src/cpu/x86/vm/globals_x86.hpp
Sat, 29 Sep 2012 06:40:00 -0400
- author
- coleenp
- date
- Sat, 29 Sep 2012 06:40:00 -0400
- changeset 4142
- d8ce2825b193
- parent 4020
- a5dd6e3ef9f3
- child 4410
- 00af3a3a8df4
- permissions
- -rw-r--r--
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
Summary: Capitalize these metadata types (and objArrayKlass)
Reviewed-by: stefank, twisti, kvn
1 /*
2 * Copyright (c) 2000, 2012, 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 */
25 #ifndef CPU_X86_VM_GLOBALS_X86_HPP
26 #define CPU_X86_VM_GLOBALS_X86_HPP
28 #include "utilities/globalDefinitions.hpp"
29 #include "utilities/macros.hpp"
31 // Sets the default values for platform dependent flags used by the runtime system.
32 // (see globals.hpp)
34 define_pd_global(bool, ConvertSleepToYield, true);
35 define_pd_global(bool, ShareVtableStubs, true);
36 define_pd_global(bool, CountInterpCalls, true);
37 define_pd_global(bool, NeedsDeoptSuspend, false); // only register window machines need this
39 define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks
40 define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast
42 // See 4827828 for this change. There is no globals_core_i486.hpp. I can't
43 // assign a different value for C2 without touching a number of files. Use
44 // #ifdef to minimize the change as it's late in Mantis. -- FIXME.
45 // c1 doesn't have this problem because the fix to 4858033 assures us
46 // the the vep is aligned at CodeEntryAlignment whereas c2 only aligns
47 // the uep and the vep doesn't get real alignment but just slops on by
48 // only assured that the entry instruction meets the 5 byte size requirement.
49 #ifdef COMPILER2
50 define_pd_global(intx, CodeEntryAlignment, 32);
51 #else
52 define_pd_global(intx, CodeEntryAlignment, 16);
53 #endif // COMPILER2
54 define_pd_global(intx, OptoLoopAlignment, 16);
55 define_pd_global(intx, InlineFrequencyCount, 100);
56 define_pd_global(intx, InlineSmallCode, 1000);
58 define_pd_global(intx, StackYellowPages, 2);
59 define_pd_global(intx, StackRedPages, 1);
60 #ifdef AMD64
61 // Very large C++ stack frames using solaris-amd64 optimized builds
62 // due to lack of optimization caused by C++ compiler bugs
63 define_pd_global(intx, StackShadowPages, NOT_WIN64(20) WIN64_ONLY(6) DEBUG_ONLY(+2));
64 #else
65 define_pd_global(intx, StackShadowPages, 4 DEBUG_ONLY(+5));
66 #endif // AMD64
68 define_pd_global(intx, PreInflateSpin, 10);
70 define_pd_global(bool, RewriteBytecodes, true);
71 define_pd_global(bool, RewriteFrequentPairs, true);
73 #ifdef _ALLBSD_SOURCE
74 define_pd_global(bool, UseMembar, true);
75 #else
76 define_pd_global(bool, UseMembar, false);
77 #endif
79 // GC Ergo Flags
80 define_pd_global(intx, CMSYoungGenPerWorker, 64*M); // default max size of CMS young gen, per GC worker thread
82 #define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \
83 \
84 develop(bool, IEEEPrecision, true, \
85 "Enables IEEE precision (for INTEL only)") \
86 \
87 product(intx, FenceInstruction, 0, \
88 "(Unsafe,Unstable) Experimental") \
89 \
90 product(intx, ReadPrefetchInstr, 0, \
91 "Prefetch instruction to prefetch ahead") \
92 \
93 product(bool, UseStoreImmI16, true, \
94 "Use store immediate 16-bits value instruction on x86") \
95 \
96 product(intx, UseAVX, 99, \
97 "Highest supported AVX instructions set on x86/x64") \
98 \
99 diagnostic(bool, UseIncDec, true, \
100 "Use INC, DEC instructions on x86") \
101 \
102 product(bool, UseNewLongLShift, false, \
103 "Use optimized bitwise shift left") \
104 \
105 product(bool, UseAddressNop, false, \
106 "Use '0F 1F [addr]' NOP instructions on x86 cpus") \
107 \
108 product(bool, UseXmmLoadAndClearUpper, true, \
109 "Load low part of XMM register and clear upper part") \
110 \
111 product(bool, UseXmmRegToRegMoveAll, false, \
112 "Copy all XMM register bits when moving value between registers") \
113 \
114 product(bool, UseXmmI2D, false, \
115 "Use SSE2 CVTDQ2PD instruction to convert Integer to Double") \
116 \
117 product(bool, UseXmmI2F, false, \
118 "Use SSE2 CVTDQ2PS instruction to convert Integer to Float") \
119 \
120 product(bool, UseUnalignedLoadStores, false, \
121 "Use SSE2 MOVDQU instruction for Arraycopy") \
122 \
123 /* assembler */ \
124 product(bool, Use486InstrsOnly, false, \
125 "Use 80486 Compliant instruction subset") \
126 \
127 product(bool, UseCountLeadingZerosInstruction, false, \
128 "Use count leading zeros instruction") \
130 #endif // CPU_X86_VM_GLOBALS_X86_HPP
