Mercurial > jdk8-mips64-public > hotspot / annotate
src/share/vm/ci/ciTypeArrayKlass.hpp@b2ee5dc63353 (annotated)
src/share/vm/ci/ciTypeArrayKlass.hpp
Wed, 23 Oct 2013 12:40:23 +0200
- author
- roland
- date
- Wed, 23 Oct 2013 12:40:23 +0200
- changeset 5991
- b2ee5dc63353
- parent 5914
- d13d7aba8c12
- child 6198
- 55fb97c4c58d
- permissions
- -rw-r--r--
8024070: C2 needs some form of type speculation
Summary: record unused type profile information with type system, propagate and use it.
Reviewed-by: kvn, twisti
| duke@435 | 1 | /* |
| coleenp@4037 | 2 | * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
| duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| duke@435 | 4 | * |
| duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
| duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| duke@435 | 7 | * published by the Free Software Foundation. |
| duke@435 | 8 | * |
| duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| duke@435 | 13 | * accompanied this code). |
| duke@435 | 14 | * |
| duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
| duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| duke@435 | 18 | * |
| trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
| trims@1907 | 21 | * questions. |
| duke@435 | 22 | * |
| duke@435 | 23 | */ |
| duke@435 | 24 | |
| stefank@2314 | 25 | #ifndef SHARE_VM_CI_CITYPEARRAYKLASS_HPP |
| stefank@2314 | 26 | #define SHARE_VM_CI_CITYPEARRAYKLASS_HPP |
| stefank@2314 | 27 | |
| stefank@2314 | 28 | #include "ci/ciArrayKlass.hpp" |
| stefank@2314 | 29 | |
| duke@435 | 30 | // ciTypeArrayKlass |
| duke@435 | 31 | // |
| coleenp@4037 | 32 | // This class represents a Klass* in the HotSpot virtual machine |
| duke@435 | 33 | // whose Klass part in a TypeArrayKlass. |
| duke@435 | 34 | class ciTypeArrayKlass : public ciArrayKlass { |
| duke@435 | 35 | CI_PACKAGE_ACCESS |
| duke@435 | 36 | |
| duke@435 | 37 | protected: |
| duke@435 | 38 | ciTypeArrayKlass(KlassHandle h_k); |
| duke@435 | 39 | |
| coleenp@4142 | 40 | TypeArrayKlass* get_TypeArrayKlass() { |
| coleenp@4142 | 41 | return (TypeArrayKlass*)get_Klass(); |
| duke@435 | 42 | } |
| duke@435 | 43 | |
| duke@435 | 44 | const char* type_string() { return "ciTypeArrayKlass"; } |
| duke@435 | 45 | |
| duke@435 | 46 | // Helper method for make. |
| duke@435 | 47 | static ciTypeArrayKlass* make_impl(BasicType type); |
| duke@435 | 48 | |
| duke@435 | 49 | public: |
| duke@435 | 50 | // The type of the array elements. |
| duke@435 | 51 | BasicType element_type() { |
| duke@435 | 52 | return Klass::layout_helper_element_type(layout_helper()); |
| duke@435 | 53 | } |
| duke@435 | 54 | |
| duke@435 | 55 | // What kind of ciObject is this? |
| coleenp@4037 | 56 | bool is_type_array_klass() const { return true; } |
| duke@435 | 57 | |
| duke@435 | 58 | // Make an array klass corresponding to the specified primitive type. |
| duke@435 | 59 | static ciTypeArrayKlass* make(BasicType type); |
| roland@5914 | 60 | |
| roland@5914 | 61 | virtual ciKlass* exact_klass() { |
| roland@5914 | 62 | return this; |
| roland@5914 | 63 | } |
| duke@435 | 64 | }; |
| stefank@2314 | 65 | |
| stefank@2314 | 66 | #endif // SHARE_VM_CI_CITYPEARRAYKLASS_HPP |
