//===-- VPLoopInfo.h --------------------------------------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// /// /// \file /// This file defines VPLoopInfo analysis and VPLoop class. VPLoopInfo is a /// specialization of LoopInfoBase for VPBlockBase. VPLoops is a specialization /// of LoopBase that is used to hold loop metadata from VPLoopInfo. Further /// information can be found in VectorizationPlanner.rst. /// //===----------------------------------------------------------------------===// #ifndef LLVM_TRANSFORMS_VECTORIZE_VPLOOPINFO_H #define LLVM_TRANSFORMS_VECTORIZE_VPLOOPINFO_H #include "llvm/Analysis/LoopInfoImpl.h" namespace llvm { class VPBlockBase; /// Hold analysis information for every loop detected by VPLoopInfo. It is an /// instantiation of LoopBase. class VPLoop : public LoopBase<VPBlockBase, VPLoop> { private: friend class LoopInfoBase<VPBlockBase, VPLoop>; explicit VPLoop(VPBlockBase *VPB) : LoopBase<VPBlockBase, VPLoop>(VPB) {} }; /// VPLoopInfo provides analysis of natural loop for VPBlockBase-based /// Hierarchical CFG. It is a specialization of LoopInfoBase class. // TODO: VPLoopInfo is initially computed on top of the VPlan plain CFG, which // is the same as the incoming IR CFG. If it's more efficient than running the // whole loop detection algorithm, we may want to create a mechanism to // translate LoopInfo into VPLoopInfo. However, that would require significant // changes in LoopInfoBase class. typedef LoopInfoBase<VPBlockBase, VPLoop> VPLoopInfo; } // namespace llvm #endif // LLVM_TRANSFORMS_VECTORIZE_VPLOOPINFO_H |