| //===- LoopStrengthReduce.h - Loop Strength Reduce Pass -------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This transformation analyzes and transforms the induction variables (and |
| // computations derived from them) into forms suitable for efficient execution |
| // on the target. |
| // |
| // This pass performs a strength reduction on array references inside loops that |
| // have as one or more of their components the loop induction variable, it |
| // rewrites expressions to take advantage of scaled-index addressing modes |
| // available on the target, and it performs a variety of other optimizations |
| // related to loop induction variables. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_TRANSFORMS_SCALAR_LOOPSTRENGTHREDUCE_H |
| #define LLVM_TRANSFORMS_SCALAR_LOOPSTRENGTHREDUCE_H |
| |
| #include "llvm/Analysis/LoopInfo.h" |
| #include "llvm/IR/PassManager.h" |
| #include "llvm/Transforms/Scalar/LoopPassManager.h" |
| |
| namespace llvm { |
| |
| /// Performs Loop Strength Reduce Pass. |
| class LoopStrengthReducePass : public PassInfoMixin<LoopStrengthReducePass> { |
| public: |
| PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM, |
| LoopStandardAnalysisResults &AR, LPMUpdater &U); |
| }; |
| } // end namespace llvm |
| |
| #endif // LLVM_TRANSFORMS_SCALAR_LOOPSTRENGTHREDUCE_H |
