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1 /* |
1 /* |
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
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 |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. |
7 * published by the Free Software Foundation. |
61 // Definitions used in generating and iterating the |
61 // Definitions used in generating and iterating the |
62 // bit field form of the signature generated by the |
62 // bit field form of the signature generated by the |
63 // Fingerprinter. |
63 // Fingerprinter. |
64 enum { |
64 enum { |
65 static_feature_size = 1, |
65 static_feature_size = 1, |
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66 is_static_bit = 1, |
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67 |
66 result_feature_size = 4, |
68 result_feature_size = 4, |
67 result_feature_mask = 0xF, |
69 result_feature_mask = 0xF, |
68 parameter_feature_size = 4, |
70 parameter_feature_size = 4, |
69 parameter_feature_mask = 0xF, |
71 parameter_feature_mask = 0xF, |
70 |
72 |
112 virtual void do_void () = 0; |
114 virtual void do_void () = 0; |
113 |
115 |
114 // Object types (begin indexes the first character of the entry, end indexes the first character after the entry) |
116 // Object types (begin indexes the first character of the entry, end indexes the first character after the entry) |
115 virtual void do_object(int begin, int end) = 0; |
117 virtual void do_object(int begin, int end) = 0; |
116 virtual void do_array (int begin, int end) = 0; |
118 virtual void do_array (int begin, int end) = 0; |
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119 |
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120 static bool is_static(uint64_t fingerprint) { |
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121 assert(fingerprint != (uint64_t)CONST64(-1), "invalid fingerprint"); |
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122 return fingerprint & is_static_bit; |
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123 } |
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124 static BasicType return_type(uint64_t fingerprint) { |
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125 assert(fingerprint != (uint64_t)CONST64(-1), "invalid fingerprint"); |
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126 return (BasicType) ((fingerprint >> static_feature_size) & result_feature_mask); |
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127 } |
117 }; |
128 }; |
118 |
129 |
119 |
130 |
120 // Specialized SignatureIterators: Used to compute signature specific values. |
131 // Specialized SignatureIterators: Used to compute signature specific values. |
121 |
132 |