1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ART_COMPILER_LLVM_RUNTIME_SUPPORT_BUILDER_H_
18#define ART_COMPILER_LLVM_RUNTIME_SUPPORT_BUILDER_H_
19
20#include "backend_types.h"
21#include "base/logging.h"
22#include "runtime_support_llvm_func.h"
23
24#include <stdint.h>
25
26namespace llvm {
27  class LLVMContext;
28  class Module;
29  class Function;
30  class Type;
31  class Value;
32}
33
34namespace art {
35namespace llvm {
36
37class IRBuilder;
38
39
40class RuntimeSupportBuilder {
41 public:
42  RuntimeSupportBuilder(::llvm::LLVMContext& context, ::llvm::Module& module, IRBuilder& irb);
43
44  /* Thread */
45  virtual ::llvm::Value* EmitGetCurrentThread();
46  virtual ::llvm::Value* EmitLoadFromThreadOffset(int64_t offset, ::llvm::Type* type,
47                                                TBAASpecialType s_ty);
48  virtual void EmitStoreToThreadOffset(int64_t offset, ::llvm::Value* value,
49                                       TBAASpecialType s_ty);
50  virtual ::llvm::Value* EmitSetCurrentThread(::llvm::Value* thread);
51
52  /* ShadowFrame */
53  virtual ::llvm::Value* EmitPushShadowFrame(::llvm::Value* new_shadow_frame,
54                                           ::llvm::Value* method, uint32_t num_vregs);
55  virtual ::llvm::Value* EmitPushShadowFrameNoInline(::llvm::Value* new_shadow_frame,
56                                                   ::llvm::Value* method, uint32_t num_vregs);
57  virtual void EmitPopShadowFrame(::llvm::Value* old_shadow_frame);
58
59  /* Exception */
60  virtual ::llvm::Value* EmitGetAndClearException();
61  virtual ::llvm::Value* EmitIsExceptionPending();
62
63  /* Suspend */
64  virtual void EmitTestSuspend();
65
66  /* Monitor */
67  void EmitLockObject(::llvm::Value* object);
68  void EmitUnlockObject(::llvm::Value* object);
69
70  /* MarkGCCard */
71  virtual void EmitMarkGCCard(::llvm::Value* value, ::llvm::Value* target_addr);
72
73  ::llvm::Function* GetRuntimeSupportFunction(runtime_support::RuntimeId id) {
74    if (id >= 0 && id < runtime_support::MAX_ID) {
75      return runtime_support_func_decls_[id];
76    } else {
77      LOG(ERROR) << "Unknown runtime function id: " << id;
78      return NULL;
79    }
80  }
81
82  virtual ~RuntimeSupportBuilder() {}
83
84 protected:
85  ::llvm::LLVMContext& context_;
86  ::llvm::Module& module_;
87  IRBuilder& irb_;
88
89 private:
90  ::llvm::Function* runtime_support_func_decls_[runtime_support::MAX_ID];
91  bool target_runtime_support_func_[runtime_support::MAX_ID];
92};
93
94
95}  // namespace llvm
96}  // namespace art
97
98#endif  // ART_COMPILER_LLVM_RUNTIME_SUPPORT_BUILDER_H_
99