1 /*
2 * Copyright (c) 2000, 2018, 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
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23 */
24
25 #ifndef SHARE_VM_JVMCI_JVMCIGLOBALS_HPP
26 #define SHARE_VM_JVMCI_JVMCIGLOBALS_HPP
27
28 #include "runtime/globals.hpp"
29
30 //
31 // Defines all global flags used by the JVMCI compiler. Only flags that need
32 // to be accessible to the JVMCI C++ code should be defined here.
33 //
34 #define JVMCI_FLAGS(develop, \
35 develop_pd, \
36 product, \
37 product_pd, \
38 diagnostic, \
39 diagnostic_pd, \
40 experimental, \
41 notproduct, \
42 range, \
43 constraint, \
44 writeable) \
45 \
46 experimental(bool, EnableJVMCI, false, \
47 "Enable JVMCI") \
48 \
49 experimental(bool, UseJVMCICompiler, false, \
50 "Use JVMCI as the default compiler") \
51 \
52 experimental(bool, JVMCIPrintProperties, false, \
53 "Prints properties used by the JVMCI compiler and exits") \
54 \
55 experimental(bool, BootstrapJVMCI, false, \
56 "Bootstrap JVMCI before running Java main method") \
57 \
58 experimental(bool, EagerJVMCI, false, \
59 "Force eager JVMCI initialization") \
60 \
61 experimental(bool, PrintBootstrap, true, \
62 "Print JVMCI bootstrap progress and summary") \
63 \
64 experimental(intx, JVMCIThreads, 1, \
65 "Force number of JVMCI compiler threads to use") \
66 range(1, max_jint) \
67 \
68 experimental(intx, JVMCIHostThreads, 1, \
69 "Force number of compiler threads for JVMCI host compiler") \
70 range(1, max_jint) \
71 \
72 NOT_COMPILER2(product(intx, MaxVectorSize, 64, \
73 "Max vector size in bytes, " \
74 "actual size could be less depending on elements type")) \
75 \
76 NOT_COMPILER2(product(bool, ReduceInitialCardMarks, true, \
77 "Defer write barriers of young objects")) \
78 \
79 experimental(intx, JVMCITraceLevel, 0, \
80 "Trace level for JVMCI: " \
81 "1 means emit a message for each CompilerToVM call," \
82 "levels greater than 1 provide progressively greater detail") \
83 \
84 experimental(intx, JVMCICounterSize, 0, \
85 "Reserved size for benchmark counters") \
86 range(0, max_jint) \
87 \
88 experimental(bool, JVMCICountersExcludeCompiler, true, \
89 "Exclude JVMCI compiler threads from benchmark counters") \
90 \
91 develop(bool, JVMCIUseFastLocking, true, \
92 "Use fast inlined locking code") \
93 \
94 experimental(intx, JVMCINMethodSizeLimit, (80*K)*wordSize, \
95 "Maximum size of a compiled method.") \
96 \
97 experimental(intx, MethodProfileWidth, 0, \
98 "Number of methods to record in call profile") \
99 \
100 develop(bool, TraceUncollectedSpeculations, false, \
101 "Print message when a failed speculation was not collected")
102
103
104 // Read default values for JVMCI globals
105
106 JVMCI_FLAGS(DECLARE_DEVELOPER_FLAG, \
107 DECLARE_PD_DEVELOPER_FLAG, \
108 DECLARE_PRODUCT_FLAG, \
109 DECLARE_PD_PRODUCT_FLAG, \
110 DECLARE_DIAGNOSTIC_FLAG, \
111 DECLARE_PD_DIAGNOSTIC_FLAG, \
112 DECLARE_EXPERIMENTAL_FLAG, \
113 DECLARE_NOTPRODUCT_FLAG, \
114 IGNORE_RANGE, \
115 IGNORE_CONSTRAINT, \
116 IGNORE_WRITEABLE)
117
118 class JVMCIGlobals {
119 public:
120 // Return true if jvmci flags are consistent. If not consistent,
121 // an error message describing the inconsistency is printed before
122 // returning false.
123 static bool check_jvmci_flags_are_consistent();
124 };
125 #endif // SHARE_VM_JVMCI_JVMCIGLOBALS_HPP