LLVM  15.0.0git
NVPTXMachineFunctionInfo.h
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1 //===-- NVPTXMachineFunctionInfo.h - NVPTX-specific Function Info --------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This class is attached to a MachineFunction instance and tracks target-
10 // dependent information
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_LIB_TARGET_NVPTX_NVPTXMACHINEFUNCTIONINFO_H
15 #define LLVM_LIB_TARGET_NVPTX_NVPTXMACHINEFUNCTIONINFO_H
16 
18 
19 namespace llvm {
21 private:
22  /// Stores a mapping from index to symbol name for removing image handles
23  /// on Fermi.
24  SmallVector<std::string, 8> ImageHandleList;
25 
26 public:
28 
32  const override {
33  return DestMF.cloneInfo<NVPTXMachineFunctionInfo>(*this);
34  }
35 
36  /// Returns the index for the symbol \p Symbol. If the symbol was previously,
37  /// added, the same index is returned. Otherwise, the symbol is added and the
38  /// new index is returned.
39  unsigned getImageHandleSymbolIndex(const char *Symbol) {
40  // Is the symbol already present?
41  for (unsigned i = 0, e = ImageHandleList.size(); i != e; ++i)
42  if (ImageHandleList[i] == std::string(Symbol))
43  return i;
44  // Nope, insert it
45  ImageHandleList.push_back(Symbol);
46  return ImageHandleList.size()-1;
47  }
48 
49  /// Returns the symbol name at the given index.
50  const char *getImageHandleSymbol(unsigned Idx) const {
51  assert(ImageHandleList.size() > Idx && "Bad index");
52  return ImageHandleList[Idx].c_str();
53  }
54 };
55 }
56 
57 #endif
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Definition: README.txt:29
llvm
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:17
llvm::SmallVector< std::string, 8 >
llvm::BumpPtrAllocatorImpl
Allocate memory in an ever growing pool, as if by bump-pointer.
Definition: Allocator.h:63
llvm::numbers::e
constexpr double e
Definition: MathExtras.h:57
llvm::DenseMap
Definition: DenseMap.h:716
llvm::NVPTXMachineFunctionInfo::NVPTXMachineFunctionInfo
NVPTXMachineFunctionInfo(MachineFunction &MF)
Definition: NVPTXMachineFunctionInfo.h:27
assert
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
llvm::NVPTXMachineFunctionInfo::getImageHandleSymbol
const char * getImageHandleSymbol(unsigned Idx) const
Returns the symbol name at the given index.
Definition: NVPTXMachineFunctionInfo.h:50
llvm::NVPTXMachineFunctionInfo::getImageHandleSymbolIndex
unsigned getImageHandleSymbolIndex(const char *Symbol)
Returns the index for the symbol Symbol.
Definition: NVPTXMachineFunctionInfo.h:39
llvm::MachineFunction
Definition: MachineFunction.h:257
llvm::MachineFunction::cloneInfo
Ty * cloneInfo(const Ty &Old)
Definition: MachineFunction.h:765
llvm::NVPTXMachineFunctionInfo::clone
MachineFunctionInfo * clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF, const DenseMap< MachineBasicBlock *, MachineBasicBlock * > &Src2DstMBB) const override
Make a functionally equivalent copy of this MachineFunctionInfo in MF.
Definition: NVPTXMachineFunctionInfo.h:30
llvm::ARMBuildAttrs::Symbol
@ Symbol
Definition: ARMBuildAttributes.h:83
Allocator
Basic Register Allocator
Definition: RegAllocBasic.cpp:142
llvm::NVPTXMachineFunctionInfo
Definition: NVPTXMachineFunctionInfo.h:20
MachineFunction.h
llvm::MachineFunctionInfo
MachineFunctionInfo - This class can be derived from and used by targets to hold private target-speci...
Definition: MachineFunction.h:95