| //===- DeadStoreElimination.h - Fast Dead Store Elimination -----*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements a trivial dead store elimination that only considers |
| // basic-block local redundant stores. |
| // |
| // FIXME: This should eventually be extended to be a post-dominator tree |
| // traversal. Doing so would be pretty trivial. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_TRANSFORMS_SCALAR_DEADSTOREELIMINATION_H |
| #define LLVM_TRANSFORMS_SCALAR_DEADSTOREELIMINATION_H |
| |
| #include "llvm/IR/PassManager.h" |
| |
| namespace llvm { |
| |
| class Function; |
| |
| /// This class implements a trivial dead store elimination. We consider |
| /// only the redundant stores that are local to a single Basic Block. |
| class DSEPass : public PassInfoMixin<DSEPass> { |
| public: |
| PreservedAnalyses run(Function &F, FunctionAnalysisManager &FAM); |
| }; |
| |
| } // end namespace llvm |
| |
| #endif // LLVM_TRANSFORMS_SCALAR_DEADSTOREELIMINATION_H |
