Mercurial > hg > truffle
annotate src/share/vm/oops/compiledICHolderOop.hpp @ 4181:319860ae697a
Simplify FrameMap: make offsets of spill slots and outgoing parameters independent so that they can be allocated at the same time, eliminating the separate phases. This makes the separate StackBlock unnecesary. Change CiStackSlot to use byte offsets instead of spill slot index. This makes CiTarget.spillSlotSize unnecessary.
| author | Christian Wimmer <Christian.Wimmer@Oracle.com> |
|---|---|
| date | Mon, 02 Jan 2012 14:16:08 -0800 |
| parents | f95d63e2154a |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1998, 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_OOPS_COMPILEDICHOLDEROOP_HPP |
| 26 #define SHARE_VM_OOPS_COMPILEDICHOLDEROOP_HPP | |
| 27 | |
| 28 #include "oops/oop.hpp" | |
| 29 | |
| 0 | 30 // A compiledICHolderOop is a helper object for the inline cache implementation. |
| 31 // It holds an intermediate value (method+klass pair) used when converting from | |
| 32 // compiled to an interpreted call. | |
| 33 // | |
| 34 // compiledICHolderOops are always allocated permanent (to avoid traversing the | |
| 35 // codeCache during scavenge). | |
| 36 | |
| 37 | |
| 38 class compiledICHolderOopDesc : public oopDesc { | |
| 39 friend class VMStructs; | |
| 40 private: | |
| 41 methodOop _holder_method; | |
| 42 klassOop _holder_klass; // to avoid name conflict with oopDesc::_klass | |
| 43 public: | |
| 44 // accessors | |
| 45 methodOop holder_method() const { return _holder_method; } | |
| 46 klassOop holder_klass() const { return _holder_klass; } | |
| 47 | |
| 48 void set_holder_method(methodOop m) { oop_store_without_check((oop*)&_holder_method, (oop)m); } | |
| 49 void set_holder_klass(klassOop k) { oop_store_without_check((oop*)&_holder_klass, (oop)k); } | |
| 50 | |
| 51 static int header_size() { return sizeof(compiledICHolderOopDesc)/HeapWordSize; } | |
| 52 static int object_size() { return align_object_size(header_size()); } | |
| 53 | |
| 54 // interpreter support (offsets in bytes) | |
| 55 static int holder_method_offset() { return offset_of(compiledICHolderOopDesc, _holder_method); } | |
| 56 static int holder_klass_offset() { return offset_of(compiledICHolderOopDesc, _holder_klass); } | |
| 57 | |
| 58 // GC support | |
| 59 oop* adr_holder_method() const { return (oop*)&_holder_method; } | |
| 60 oop* adr_holder_klass() const { return (oop*)&_holder_klass; } | |
| 61 }; | |
| 1972 | 62 |
| 63 #endif // SHARE_VM_OOPS_COMPILEDICHOLDEROOP_HPP |