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_ARK_SPECULATION_H 17 #define LIBLLVMBACKEND_TRANSFORMS_PASSES_ARK_SPECULATION_H 18 19 #include <llvm/Transforms/Scalar/SpeculativeExecution.h> 20 #include <llvm/IR/PassManager.h> 21 22 namespace ark::llvmbackend { 23 struct LLVMCompilerOptions; 24 } // namespace ark::llvmbackend 25 26 namespace ark::llvmbackend::passes { 27 28 class ArkSpeculativeExecution : public llvm::SpeculativeExecutionPass { 29 static constexpr bool ONLY_IF_DIVERGENT_TARGET = true; 30 31 public: 32 static constexpr llvm::StringRef ARG_NAME = "wrap-speculative-execution"; 33 ArkSpeculativeExecution()34 explicit ArkSpeculativeExecution() : llvm::SpeculativeExecutionPass(ONLY_IF_DIVERGENT_TARGET) {} ShouldInsert(const ark::llvmbackend::LLVMCompilerOptions * options)35 static bool ShouldInsert([[maybe_unused]] const ark::llvmbackend::LLVMCompilerOptions *options) 36 { 37 return true; 38 } 39 }; 40 41 } // namespace ark::llvmbackend::passes 42 43 #endif // LIBLLVMBACKEND_TRANSFORMS_PASSES_ARK_SPECULATION_H 44