//===- ADCE.h - Aggressive dead code elimination --------------------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // This file provides the interface for the Aggressive Dead Code Elimination // pass. This pass optimistically assumes that all instructions are dead until // proven otherwise, allowing it to eliminate dead computations that other DCE // passes do not catch, particularly involving loop computations. // //===----------------------------------------------------------------------===// #ifndef LLVM_TRANSFORMS_SCALAR_ADCE_H #define LLVM_TRANSFORMS_SCALAR_ADCE_H #include "llvm/IR/Function.h" #include "llvm/IR/PassManager.h" namespace llvm { /// A DCE pass that assumes instructions are dead until proven otherwise. /// /// This pass eliminates dead code by optimistically assuming that all /// instructions are dead until proven otherwise. This allows it to eliminate /// dead computations that other DCE passes do not catch, particularly involving /// loop computations. class ADCEPass { public: static StringRef name() { return "ADCEPass"; } PreservedAnalyses run(Function &F); }; } #endif // LLVM_TRANSFORMS_SCALAR_ADCE_H