equal
deleted
inserted
replaced
1 /* |
1 /* |
2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 2016, 2017, 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. |
37 // Object.hashCode, System.identityHashCode can pull the hashCode from the |
37 // Object.hashCode, System.identityHashCode can pull the hashCode from the |
38 // header word instead of doing a full VM transition once it's been computed. |
38 // header word instead of doing a full VM transition once it's been computed. |
39 // Since hashCode is usually polymorphic at call sites we can't do this |
39 // Since hashCode is usually polymorphic at call sites we can't do this |
40 // optimization at the call site without a lot of work. |
40 // optimization at the call site without a lot of work. |
41 void SharedRuntime::inline_check_hashcode_from_object_header(MacroAssembler* masm, |
41 void SharedRuntime::inline_check_hashcode_from_object_header(MacroAssembler* masm, |
42 methodHandle method, |
42 const methodHandle& method, |
43 Register obj_reg, |
43 Register obj_reg, |
44 Register result) { |
44 Register result) { |
45 Label slowCase; |
45 Label slowCase; |
46 |
46 |
47 // Unlike for Object.hashCode, System.identityHashCode is static method and |
47 // Unlike for Object.hashCode, System.identityHashCode is static method and |