1 /*
2 * Copyright (c) 2000, 2016, 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. All other
33 // JVMCI flags should be defined in JVMCIOptions.java.
34 //
35 #define JVMCI_FLAGS(develop, \
36 develop_pd, \
37 product, \
38 product_pd, \
39 diagnostic, \
40 diagnostic_pd, \
41 experimental, \
42 notproduct, \
43 range, \
44 constraint, \
45 writeable) \
46 \
47 experimental(bool, EnableJVMCI, false, \
48 "Enable JVMCI") \
49 \
50 experimental(bool, UseJVMCICompiler, false, \
51 "Use JVMCI as the default compiler") \
52 \
53 experimental(bool, BootstrapJVMCI, false, \
54 "Bootstrap JVMCI before running Java main method") \
55 \
56 experimental(bool, PrintBootstrap, true, \
57 "Print JVMCI bootstrap progress and summary") \
58 \
59 experimental(intx, JVMCIThreads, 1, \
60 "Force number of JVMCI compiler threads to use") \
61 range(1, max_jint) \
62 \
63 experimental(intx, JVMCIHostThreads, 1, \
64 "Force number of compiler threads for JVMCI host compiler") \
65 range(1, max_jint) \
66 \
67 experimental(bool, CodeInstallSafepointChecks, true, \
68 "Perform explicit safepoint checks while installing code") \
69 \
70 NOT_COMPILER2(product(intx, MaxVectorSize, 64, \
71 "Max vector size in bytes, " \
72 "actual size could be less depending on elements type")) \
73 \
74 NOT_COMPILER2(product(bool, ReduceInitialCardMarks, true, \
75 "Defer write barriers of young objects")) \
76 \
77 experimental(intx, JVMCITraceLevel, 0, \
78 "Trace level for JVMCI: " \
79 "1 means emit a message for each CompilerToVM call," \
80 "levels greater than 1 provide progressively greater detail") \
81 \
82 experimental(intx, JVMCICounterSize, 0, \
83 "Reserved size for benchmark counters") \
84 range(0, max_jint) \
85 \
86 experimental(bool, JVMCICountersExcludeCompiler, true, \
87 "Exclude JVMCI compiler threads from benchmark counters") \
88 \
89 develop(bool, JVMCIUseFastLocking, true, \
90 "Use fast inlined locking code") \
91 \
92 experimental(intx, JVMCINMethodSizeLimit, (80*K)*wordSize, \
93 "Maximum size of a compiled method.") \
94 \
95 develop(bool, TraceUncollectedSpeculations, false, \
96 "Print message when a failed speculation was not collected")
97
98
99 // Read default values for JVMCI globals
100
101 JVMCI_FLAGS(DECLARE_DEVELOPER_FLAG, \
102 DECLARE_PD_DEVELOPER_FLAG, \
103 DECLARE_PRODUCT_FLAG, \
104 DECLARE_PD_PRODUCT_FLAG, \
105 DECLARE_DIAGNOSTIC_FLAG, \
106 DECLARE_PD_DIAGNOSTIC_FLAG, \
107 DECLARE_EXPERIMENTAL_FLAG, \
108 DECLARE_NOTPRODUCT_FLAG, \
109 IGNORE_RANGE, \
110 IGNORE_CONSTRAINT, \
111 IGNORE_WRITEABLE)
112
113 class JVMCIGlobals {
114 public:
115 // Return true if jvmci flags are consistent.
116 static bool check_jvmci_flags_are_consistent();
117 // Print jvmci arguments inconsistency error message.
118 static void print_jvmci_args_inconsistency_error_message();
119 };
120 #endif // SHARE_VM_JVMCI_JVMCIGLOBALS_HPP