Mercurial > hg > graal-jvmci-8
comparison src/share/vm/shark/sharkFunction.hpp @ 1692:d2ede61b7a12
6976186: integrate Shark HotSpot changes
Summary: Shark is a JIT compiler for Zero that uses the LLVM compiler infrastructure.
Reviewed-by: kvn, twisti
Contributed-by: Gary Benson <gbenson@redhat.com>
author | twisti |
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date | Wed, 11 Aug 2010 05:51:21 -0700 |
parents | |
children | f95d63e2154a |
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1691:4a665be40fd3 | 1692:d2ede61b7a12 |
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1 /* | |
2 * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved. | |
3 * Copyright 2008, 2009 Red Hat, Inc. | |
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
5 * | |
6 * This code is free software; you can redistribute it and/or modify it | |
7 * under the terms of the GNU General Public License version 2 only, as | |
8 * published by the Free Software Foundation. | |
9 * | |
10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
13 * version 2 for more details (a copy is included in the LICENSE file that | |
14 * accompanied this code). | |
15 * | |
16 * You should have received a copy of the GNU General Public License version | |
17 * 2 along with this work; if not, write to the Free Software Foundation, | |
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
19 * | |
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
21 * or visit www.oracle.com if you need additional information or have any | |
22 * questions. | |
23 * | |
24 */ | |
25 | |
26 class SharkTopLevelBlock; | |
27 class DeferredZeroCheck; | |
28 | |
29 class SharkFunction : public SharkTargetInvariants { | |
30 friend class SharkStackWithNormalFrame; | |
31 | |
32 public: | |
33 static llvm::Function* build(ciEnv* env, | |
34 SharkBuilder* builder, | |
35 ciTypeFlow* flow, | |
36 const char* name) { | |
37 SharkFunction function(env, builder, flow, name); | |
38 return function.function(); | |
39 } | |
40 | |
41 private: | |
42 SharkFunction(ciEnv* env, | |
43 SharkBuilder* builder, | |
44 ciTypeFlow* flow, | |
45 const char* name) | |
46 : SharkTargetInvariants(env, builder, flow) { initialize(name); } | |
47 | |
48 private: | |
49 void initialize(const char* name); | |
50 | |
51 private: | |
52 llvm::Function* _function; | |
53 SharkTopLevelBlock** _blocks; | |
54 GrowableArray<DeferredZeroCheck*> _deferred_zero_checks; | |
55 SharkStack* _stack; | |
56 | |
57 public: | |
58 llvm::Function* function() const { | |
59 return _function; | |
60 } | |
61 int block_count() const { | |
62 return flow()->block_count(); | |
63 } | |
64 SharkTopLevelBlock* block(int i) const { | |
65 assert(i < block_count(), "should be"); | |
66 return _blocks[i]; | |
67 } | |
68 GrowableArray<DeferredZeroCheck*>* deferred_zero_checks() { | |
69 return &_deferred_zero_checks; | |
70 } | |
71 SharkStack* stack() const { | |
72 return _stack; | |
73 } | |
74 | |
75 // On-stack replacement | |
76 private: | |
77 bool is_osr() const { | |
78 return flow()->is_osr_flow(); | |
79 } | |
80 const llvm::FunctionType* entry_point_type() const { | |
81 if (is_osr()) | |
82 return SharkType::osr_entry_point_type(); | |
83 else | |
84 return SharkType::entry_point_type(); | |
85 } | |
86 | |
87 // Block management | |
88 private: | |
89 llvm::BasicBlock* _block_insertion_point; | |
90 | |
91 void set_block_insertion_point(llvm::BasicBlock* block_insertion_point) { | |
92 _block_insertion_point = block_insertion_point; | |
93 } | |
94 llvm::BasicBlock* block_insertion_point() const { | |
95 return _block_insertion_point; | |
96 } | |
97 | |
98 public: | |
99 llvm::BasicBlock* CreateBlock(const char* name = "") const { | |
100 return llvm::BasicBlock::Create( | |
101 SharkContext::current(), name, function(), block_insertion_point()); | |
102 } | |
103 | |
104 // Deferred zero checks | |
105 public: | |
106 void add_deferred_zero_check(SharkTopLevelBlock* block, | |
107 SharkValue* value); | |
108 | |
109 private: | |
110 void do_deferred_zero_checks(); | |
111 }; |