Mercurial > hg > graal-compiler
annotate src/share/vm/interpreter/rewriter.hpp @ 1366:b9d85fcdf743
6940733: allocate non static oop fields in super and sub classes together
Summary: Use FieldsAllocationStyle=2 to allocate non static oop fields in super and sub classes together
Reviewed-by: twisti
author | kvn |
---|---|
date | Wed, 07 Apr 2010 10:35:56 -0700 |
parents | dd57230ba8fe |
children | c18cbe5936b8 ab102d5d923e |
rev | line source |
---|---|
0 | 1 /* |
844 | 2 * Copyright 1998-2009 Sun Microsystems, Inc. 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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 // The Rewriter adds caches to the constant pool and rewrites bytecode indices | |
26 // pointing into the constant pool for better interpreter performance. | |
27 | |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
28 class Rewriter: public StackObj { |
0 | 29 private: |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
30 instanceKlassHandle _klass; |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
31 constantPoolHandle _pool; |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
32 objArrayHandle _methods; |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
33 intArray _cp_map; |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
34 intStack _cp_cache_map; |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
35 |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
36 void init_cp_map(int length) { |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
37 _cp_map.initialize(length, -1); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
38 // Choose an initial value large enough that we don't get frequent |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
39 // calls to grow(). |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
40 _cp_cache_map.initialize(length / 2); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
41 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
42 int cp_entry_to_cp_cache(int i) { assert(has_cp_cache(i), "oob"); return _cp_map[i]; } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
43 bool has_cp_cache(int i) { return (uint)i < (uint)_cp_map.length() && _cp_map[i] >= 0; } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
44 int maybe_add_cp_cache_entry(int i) { return has_cp_cache(i) ? _cp_map[i] : add_cp_cache_entry(i); } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
45 int add_cp_cache_entry(int cp_index) { |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
844
diff
changeset
|
46 assert((cp_index & _secondary_entry_tag) == 0, "bad tag"); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
47 assert(_cp_map[cp_index] == -1, "not twice on same cp_index"); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
48 int cache_index = _cp_cache_map.append(cp_index); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
49 _cp_map.at_put(cp_index, cache_index); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
50 assert(cp_entry_to_cp_cache(cp_index) == cache_index, ""); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
51 return cache_index; |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
52 } |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
844
diff
changeset
|
53 int add_secondary_cp_cache_entry(int main_cpc_entry) { |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
844
diff
changeset
|
54 assert(main_cpc_entry < _cp_cache_map.length(), "must be earlier CP cache entry"); |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
844
diff
changeset
|
55 int cache_index = _cp_cache_map.append(main_cpc_entry | _secondary_entry_tag); |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
844
diff
changeset
|
56 return cache_index; |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
844
diff
changeset
|
57 } |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
58 |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
59 // All the work goes in here: |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1059
diff
changeset
|
60 Rewriter(instanceKlassHandle klass, constantPoolHandle cpool, objArrayHandle methods, TRAPS); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
61 |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
62 void compute_index_maps(); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
63 void make_constant_pool_cache(TRAPS); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
64 void scan_method(methodOop m); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
65 methodHandle rewrite_jsrs(methodHandle m, TRAPS); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
66 void rewrite_Object_init(methodHandle m, TRAPS); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
67 int rewrite_member_reference(address bcp, int offset); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
68 void rewrite_invokedynamic(address bcp, int offset, int cp_index); |
0 | 69 |
70 public: | |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
0
diff
changeset
|
71 // Driver routine: |
0 | 72 static void rewrite(instanceKlassHandle klass, TRAPS); |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1059
diff
changeset
|
73 static void rewrite(instanceKlassHandle klass, constantPoolHandle cpool, objArrayHandle methods, TRAPS); |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
844
diff
changeset
|
74 |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
844
diff
changeset
|
75 enum { |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
844
diff
changeset
|
76 _secondary_entry_tag = nth_bit(30) |
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
844
diff
changeset
|
77 }; |
0 | 78 }; |