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 26 namespace llvm { 27 class LLVMContext; 28 class Module; 29 class Function; 30 class Type; 31 class Value; 32 } 33 34 namespace art { 35 namespace llvm { 36 37 class IRBuilder; 38 39 40 class 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 virtual void EmitLockObject(::llvm::Value* object); 68 virtual void EmitUnlockObject(::llvm::Value* object); 69 70 /* MarkGCCard */ 71 virtual void EmitMarkGCCard(::llvm::Value* value, ::llvm::Value* target_addr); 72 GetRuntimeSupportFunction(runtime_support::RuntimeId id)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 ~RuntimeSupportBuilder()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