blob: 5c2485fc2145552492f1d8997d4f5b672afcfac8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
//===-- 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
|
