1 /*
2 * Copyright (c) 2008, 2019, 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_ARM_GLOBALS_ARM_HPP
26 #define CPU_ARM_GLOBALS_ARM_HPP
27
28 //
29 // Sets the default values for platform dependent flags used by the runtime system.
30 // (see globals.hpp)
31 //
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 define_pd_global(bool, TrapBasedNullChecks, false); // Not needed
36
37 define_pd_global(uintx, CodeCacheSegmentSize, 64 TIERED_ONLY(+64)); // Tiered compilation has large code-entry alignment.
38 define_pd_global(intx, CodeEntryAlignment, 16);
39 define_pd_global(intx, OptoLoopAlignment, 16);
40
41 #define DEFAULT_STACK_YELLOW_PAGES (2)
42 #define DEFAULT_STACK_RED_PAGES (1)
43 #define DEFAULT_STACK_SHADOW_PAGES (5 DEBUG_ONLY(+1))
44 #define DEFAULT_STACK_RESERVED_PAGES (0)
45
46 #define MIN_STACK_YELLOW_PAGES DEFAULT_STACK_YELLOW_PAGES
47 #define MIN_STACK_RED_PAGES DEFAULT_STACK_RED_PAGES
48 #define MIN_STACK_SHADOW_PAGES DEFAULT_STACK_SHADOW_PAGES
49 #define MIN_STACK_RESERVED_PAGES (0)
50
51 define_pd_global(intx, StackYellowPages, DEFAULT_STACK_YELLOW_PAGES);
52 define_pd_global(intx, StackRedPages, DEFAULT_STACK_RED_PAGES);
53 define_pd_global(intx, StackShadowPages, DEFAULT_STACK_SHADOW_PAGES);
54 define_pd_global(intx, StackReservedPages, DEFAULT_STACK_RESERVED_PAGES);
55
56 define_pd_global(intx, InlineFrequencyCount, 50);
57 #if defined(COMPILER1) || defined(COMPILER2)
58 define_pd_global(intx, InlineSmallCode, 1500);
59 #endif
60
61 define_pd_global(bool, RewriteBytecodes, true);
62 define_pd_global(bool, RewriteFrequentPairs, true);
63
64 define_pd_global(bool, PreserveFramePointer, false);
65
66 define_pd_global(uintx, TypeProfileLevel, 0);
67
68 // No performance work done here yet.
69 define_pd_global(bool, CompactStrings, false);
70
71 define_pd_global(intx, InitArrayShortSize, 8*BytesPerLong);
72
73 define_pd_global(bool, ThreadLocalHandshakes, false);
74
75 #define ARCH_FLAGS(develop, \
76 product, \
77 diagnostic, \
78 experimental, \
79 notproduct, \
80 range, \
81 constraint, \
82 writeable)
83 #endif // CPU_ARM_GLOBALS_ARM_HPP