1 /*
2 * Copyright (c) 2000, 2009, 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 runtime system.
26 // (see globals.hpp)
27
28 define_pd_global(bool, ConvertSleepToYield, true);
29 define_pd_global(bool, ShareVtableStubs, true);
30 define_pd_global(bool, CountInterpCalls, true);
31 define_pd_global(bool, NeedsDeoptSuspend, false); // only register window machines need this
32
33 define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks
34 define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast
35
36 // See 4827828 for this change. There is no globals_core_i486.hpp. I can't
37 // assign a different value for C2 without touching a number of files. Use
38 // #ifdef to minimize the change as it's late in Mantis. -- FIXME.
39 // c1 doesn't have this problem because the fix to 4858033 assures us
40 // the the vep is aligned at CodeEntryAlignment whereas c2 only aligns
41 // the uep and the vep doesn't get real alignment but just slops on by
42 // only assured that the entry instruction meets the 5 byte size requirement.
43 #ifdef COMPILER2
44 define_pd_global(intx, CodeEntryAlignment, 32);
48 define_pd_global(intx, OptoLoopAlignment, 16);
49 define_pd_global(intx, InlineFrequencyCount, 100);
50 define_pd_global(intx, InlineSmallCode, 1000);
51
52 define_pd_global(intx, StackYellowPages, 2);
53 define_pd_global(intx, StackRedPages, 1);
54 #ifdef AMD64
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(intx, StackShadowPages, 3 DEBUG_ONLY(+1));
60 #endif // AMD64
61
62 define_pd_global(intx, PreInflateSpin, 10);
63
64 define_pd_global(bool, RewriteBytecodes, true);
65 define_pd_global(bool, RewriteFrequentPairs, true);
66
67 define_pd_global(bool, UseMembar, false);
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1 /*
2 * Copyright (c) 2000, 2010, 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 #ifndef CPU_X86_VM_GLOBALS_X86_HPP
26 #define CPU_X86_VM_GLOBALS_X86_HPP
27
28 #include "utilities/globalDefinitions.hpp"
29 #include "utilities/macros.hpp"
30
31 // Sets the default values for platform dependent flags used by the runtime system.
32 // (see globals.hpp)
33
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
38
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
41
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);
54 define_pd_global(intx, OptoLoopAlignment, 16);
55 define_pd_global(intx, InlineFrequencyCount, 100);
56 define_pd_global(intx, InlineSmallCode, 1000);
57
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, SOLARIS_ONLY(20) NOT_SOLARIS(6) DEBUG_ONLY(+2));
64 #else
65 define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+1));
66 #endif // AMD64
67
68 define_pd_global(intx, PreInflateSpin, 10);
69
70 define_pd_global(bool, RewriteBytecodes, true);
71 define_pd_global(bool, RewriteFrequentPairs, true);
72
73 define_pd_global(bool, UseMembar, false);
74
75 #endif // CPU_X86_VM_GLOBALS_X86_HPP
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