Mercurial > hg > truffle
comparison src/cpu/x86/vm/globals_x86.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | f6da6f0174ac |
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1 /* | |
2 * Copyright 2000-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 // | |
26 // Sets the default values for platform dependent flags used by the runtime system. | |
27 // (see globals.hpp) | |
28 // | |
29 | |
30 define_pd_global(bool, ConvertSleepToYield, true); | |
31 define_pd_global(bool, ShareVtableStubs, true); | |
32 define_pd_global(bool, CountInterpCalls, true); | |
33 | |
34 define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks | |
35 define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast | |
36 | |
37 // See 4827828 for this change. There is no globals_core_i486.hpp. I can't | |
38 // assign a different value for C2 without touching a number of files. Use | |
39 // #ifdef to minimize the change as it's late in Mantis. -- FIXME. | |
40 // c1 doesn't have this problem because the fix to 4858033 assures us | |
41 // the the vep is aligned at CodeEntryAlignment whereas c2 only aligns | |
42 // the uep and the vep doesn't get real alignment but just slops on by | |
43 // only assured that the entry instruction meets the 5 byte size requirement. | |
44 #ifdef COMPILER2 | |
45 define_pd_global(intx, CodeEntryAlignment, 32); | |
46 #else | |
47 define_pd_global(intx, CodeEntryAlignment, 16); | |
48 #endif // COMPILER2 | |
49 | |
50 define_pd_global(bool, NeedsDeoptSuspend, false); // only register window machines need this | |
51 | |
52 define_pd_global(uintx, TLABSize, 0); | |
53 #ifdef AMD64 | |
54 define_pd_global(uintx, NewSize, ScaleForWordSize(2048 * K)); | |
55 // Very large C++ stack frames using solaris-amd64 optimized builds | |
56 // due to lack of optimization caused by C++ compiler bugs | |
57 define_pd_global(intx, StackShadowPages, SOLARIS_ONLY(20) NOT_SOLARIS(6) DEBUG_ONLY(+2)); | |
58 #else | |
59 define_pd_global(uintx, NewSize, 1024 * K); | |
60 define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+1)); | |
61 #endif // AMD64 | |
62 define_pd_global(intx, InlineFrequencyCount, 100); | |
63 define_pd_global(intx, PreInflateSpin, 10); | |
64 | |
65 define_pd_global(intx, StackYellowPages, 2); | |
66 define_pd_global(intx, StackRedPages, 1); | |
67 | |
68 define_pd_global(bool, RewriteBytecodes, true); | |
69 define_pd_global(bool, RewriteFrequentPairs, true); |