Mercurial > hg > truffle
annotate src/share/vm/ci/ciConstant.hpp @ 2007:5ddfcf4b079e
7003554: (tiered) assert(is_null_object() || handle() != NULL) failed: cannot embed null pointer
Summary: C1 with profiling doesn't check whether the MDO has been really allocated, which can silently fail if the perm gen is full. The solution is to check if the allocation failed and bailout out of inlining or compilation.
Reviewed-by: kvn, never
| author | iveresov |
|---|---|
| date | Thu, 02 Dec 2010 17:21:12 -0800 |
| parents | f95d63e2154a |
| children | c124e2e7463e |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_CI_CICONSTANT_HPP |
| 26 #define SHARE_VM_CI_CICONSTANT_HPP | |
| 27 | |
| 28 #include "ci/ciClassList.hpp" | |
| 29 #include "ci/ciNullObject.hpp" | |
| 30 | |
| 0 | 31 // ciConstant |
| 32 // | |
| 33 // This class represents a constant value. | |
| 34 class ciConstant VALUE_OBJ_CLASS_SPEC { | |
| 35 private: | |
| 36 friend class ciEnv; | |
| 37 friend class ciField; | |
| 38 | |
| 39 BasicType _type; | |
| 40 union { | |
| 41 jint _int; | |
| 42 jlong _long; | |
| 43 jint _long_half[2]; | |
| 44 jfloat _float; | |
| 45 jdouble _double; | |
| 46 ciObject* _object; | |
| 47 } _value; | |
| 48 | |
| 49 // Implementation of the print method. | |
| 50 void print_impl(outputStream* st); | |
| 51 | |
| 52 public: | |
| 53 | |
| 54 ciConstant() { | |
| 55 _type = T_ILLEGAL; _value._long = -1; | |
| 56 } | |
| 57 ciConstant(BasicType type, jint value) { | |
| 58 assert(type != T_LONG && type != T_DOUBLE && type != T_FLOAT, | |
| 59 "using the wrong ciConstant constructor"); | |
| 60 _type = type; _value._int = value; | |
| 61 } | |
| 62 ciConstant(jlong value) { | |
| 63 _type = T_LONG; _value._long = value; | |
| 64 } | |
| 65 ciConstant(jfloat value) { | |
| 66 _type = T_FLOAT; _value._float = value; | |
| 67 } | |
| 68 ciConstant(jdouble value) { | |
| 69 _type = T_DOUBLE; _value._double = value; | |
| 70 } | |
| 71 ciConstant(BasicType type, ciObject* p) { | |
| 72 _type = type; _value._object = p; | |
| 73 } | |
| 74 | |
| 75 BasicType basic_type() const { return _type; } | |
| 76 | |
| 77 jboolean as_boolean() { | |
| 78 assert(basic_type() == T_BOOLEAN, "wrong type"); | |
| 79 return (jboolean)_value._int; | |
| 80 } | |
| 81 jchar as_char() { | |
| 82 assert(basic_type() == T_CHAR, "wrong type"); | |
| 83 return (jchar)_value._int; | |
| 84 } | |
| 85 jbyte as_byte() { | |
| 86 assert(basic_type() == T_BYTE, "wrong type"); | |
| 87 return (jbyte)_value._int; | |
| 88 } | |
| 89 jshort as_short() { | |
| 90 assert(basic_type() == T_SHORT, "wrong type"); | |
| 91 return (jshort)_value._int; | |
| 92 } | |
| 93 jint as_int() { | |
| 94 assert(basic_type() == T_BOOLEAN || basic_type() == T_CHAR || | |
| 95 basic_type() == T_BYTE || basic_type() == T_SHORT || | |
| 96 basic_type() == T_INT, "wrong type"); | |
| 97 return _value._int; | |
| 98 } | |
| 99 jlong as_long() { | |
| 100 assert(basic_type() == T_LONG, "wrong type"); | |
| 101 return _value._long; | |
| 102 } | |
| 103 jfloat as_float() { | |
| 104 assert(basic_type() == T_FLOAT, "wrong type"); | |
| 105 return _value._float; | |
| 106 } | |
| 107 jdouble as_double() { | |
| 108 assert(basic_type() == T_DOUBLE, "wrong type"); | |
| 109 return _value._double; | |
| 110 } | |
| 111 ciObject* as_object() const { | |
| 112 assert(basic_type() == T_OBJECT || basic_type() == T_ARRAY, "wrong type"); | |
| 113 return _value._object; | |
| 114 } | |
| 115 | |
| 116 // Debugging output | |
| 117 void print(); | |
| 118 }; | |
| 1972 | 119 |
| 120 #endif // SHARE_VM_CI_CICONSTANT_HPP |