Mercurial > hg > truffle
comparison src/cpu/zero/vm/compiledIC_zero.cpp @ 10168:a6e09d6dd8e5
8003853: specify offset of IC load in java_to_interp stub
Summary: refactored code to allow platform-specific differences
Reviewed-by: dlong, twisti
Contributed-by: Goetz Lindenmaier <goetz.lindenmaier@sap.com>
author | dlong |
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date | Wed, 24 Apr 2013 20:55:28 -0400 |
parents | |
children | c64b6b0c40c8 |
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10106:42a42da29fd7 | 10168:a6e09d6dd8e5 |
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1 /* | |
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. | |
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 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
25 #include "precompiled.hpp" | |
26 #include "classfile/systemDictionary.hpp" | |
27 #include "code/codeCache.hpp" | |
28 #include "code/compiledIC.hpp" | |
29 #include "code/icBuffer.hpp" | |
30 #include "code/nmethod.hpp" | |
31 #include "code/vtableStubs.hpp" | |
32 #include "interpreter/interpreter.hpp" | |
33 #include "interpreter/linkResolver.hpp" | |
34 #include "memory/metadataFactory.hpp" | |
35 #include "memory/oopFactory.hpp" | |
36 #include "oops/method.hpp" | |
37 #include "oops/oop.inline.hpp" | |
38 #include "oops/symbol.hpp" | |
39 #include "runtime/icache.hpp" | |
40 #include "runtime/sharedRuntime.hpp" | |
41 #include "runtime/stubRoutines.hpp" | |
42 #include "utilities/events.hpp" | |
43 | |
44 | |
45 // Release the CompiledICHolder* associated with this call site is there is one. | |
46 void CompiledIC::cleanup_call_site(virtual_call_Relocation* call_site) { | |
47 // This call site might have become stale so inspect it carefully. | |
48 NativeCall* call = nativeCall_at(call_site->addr()); | |
49 if (is_icholder_entry(call->destination())) { | |
50 NativeMovConstReg* value = nativeMovConstReg_at(call_site->cached_value()); | |
51 InlineCacheBuffer::queue_for_release((CompiledICHolder*)value->data()); | |
52 } | |
53 } | |
54 | |
55 bool CompiledIC::is_icholder_call_site(virtual_call_Relocation* call_site) { | |
56 // This call site might have become stale so inspect it carefully. | |
57 NativeCall* call = nativeCall_at(call_site->addr()); | |
58 return is_icholder_entry(call->destination()); | |
59 } | |
60 | |
61 //----------------------------------------------------------------------------- | |
62 // High-level access to an inline cache. Guaranteed to be MT-safe. | |
63 | |
64 CompiledIC::CompiledIC(nmethod* nm, NativeCall* call) | |
65 : _ic_call(call) | |
66 { | |
67 address ic_call = call->instruction_address(); | |
68 | |
69 assert(ic_call != NULL, "ic_call address must be set"); | |
70 assert(nm != NULL, "must pass nmethod"); | |
71 assert(nm->contains(ic_call), "must be in nmethod"); | |
72 | |
73 // Search for the ic_call at the given address. | |
74 RelocIterator iter(nm, ic_call, ic_call+1); | |
75 bool ret = iter.next(); | |
76 assert(ret == true, "relocInfo must exist at this address"); | |
77 assert(iter.addr() == ic_call, "must find ic_call"); | |
78 if (iter.type() == relocInfo::virtual_call_type) { | |
79 virtual_call_Relocation* r = iter.virtual_call_reloc(); | |
80 _is_optimized = false; | |
81 _value = nativeMovConstReg_at(r->cached_value()); | |
82 } else { | |
83 assert(iter.type() == relocInfo::opt_virtual_call_type, "must be a virtual call"); | |
84 _is_optimized = true; | |
85 _value = NULL; | |
86 } | |
87 } | |
88 | |
89 // ---------------------------------------------------------------------------- | |
90 | |
91 void CompiledStaticCall::emit_to_interp_stub(CodeBuffer &cbuf) { | |
92 ShouldNotReachHere(); // Only needed for COMPILER2. | |
93 } | |
94 | |
95 int CompiledStaticCall::to_interp_stub_size() { | |
96 ShouldNotReachHere(); // Only needed for COMPILER2. | |
97 return 0; | |
98 } | |
99 | |
100 // Relocation entries for call stub, compiled java to interpreter. | |
101 int CompiledStaticCall::reloc_to_interp_stub() { | |
102 ShouldNotReachHere(); // Only needed for COMPILER2. | |
103 return 0; | |
104 } | |
105 | |
106 void CompiledStaticCall::set_to_interpreted(methodHandle callee, address entry) { | |
107 ShouldNotReachHere(); // Only needed for COMPILER2. | |
108 } | |
109 | |
110 void CompiledStaticCall::set_stub_to_clean(static_stub_Relocation* static_stub) { | |
111 ShouldNotReachHere(); // Only needed for COMPILER2. | |
112 } | |
113 | |
114 //----------------------------------------------------------------------------- | |
115 // Non-product mode code. | |
116 #ifndef PRODUCT | |
117 | |
118 void CompiledStaticCall::verify() { | |
119 ShouldNotReachHere(); // Only needed for COMPILER2. | |
120 } | |
121 | |
122 #endif // !PRODUCT |