1 /* 2 * Copyright (c) 2023-2024 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef LIBLLVMBACKEND_TRANSFORMS_PASSES_PRUNE_DEOPT_H 17 #define LIBLLVMBACKEND_TRANSFORMS_PASSES_PRUNE_DEOPT_H 18 19 #include <llvm/IR/PassManager.h> 20 21 namespace ark::llvmbackend { 22 struct LLVMCompilerOptions; 23 } // namespace ark::llvmbackend 24 25 namespace llvm { 26 struct OperandBundleUse; 27 } // namespace llvm 28 29 namespace ark::llvmbackend::passes { 30 31 class PruneDeopt : public llvm::PassInfoMixin<PruneDeopt> { 32 public: ShouldInsert(const ark::llvmbackend::LLVMCompilerOptions * options)33 static bool ShouldInsert([[maybe_unused]] const ark::llvmbackend::LLVMCompilerOptions *options) 34 { 35 return true; 36 } 37 38 // NOLINTNEXTLINE(readability-identifier-naming) 39 llvm::PreservedAnalyses run(llvm::Function &function, llvm::FunctionAnalysisManager &analysisManager); 40 41 private: 42 llvm::CallInst *GetUpdatedCallInst(llvm::CallInst *call, const llvm::OperandBundleUse &bundle); 43 44 using EncodedDeoptBundle = llvm::SmallVector<llvm::Value *, 0>; 45 46 bool IsCaughtDeoptimization(llvm::ArrayRef<llvm::Use> inputs) const; 47 48 bool IsNoReturn(llvm::ArrayRef<llvm::Use> inputs) const; 49 50 EncodedDeoptBundle EncodeDeoptBundle(llvm::CallInst *call, const llvm::OperandBundleUse &bundle) const; 51 52 std::string GetInlineInfo(llvm::ArrayRef<llvm::Use> inputs) const; 53 54 void MakeUnreachableAfter(llvm::BasicBlock *block, llvm::Instruction *after) const; 55 56 public: 57 static constexpr llvm::StringRef ARG_NAME = "prune-deopt"; 58 }; 59 60 } // namespace ark::llvmbackend::passes 61 62 #endif // LIBLLVMBACKEND_TRANSFORMS_PASSES_PRUNE_DEOPT_H 63