forked from OSchip/llvm-project
47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
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//===-- NVPTXMachineFunctionInfo.h - NVPTX-specific Function Info --------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This class is attached to a MachineFunction instance and tracks target-
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// dependent information
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/MachineFunction.h"
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namespace llvm {
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class NVPTXMachineFunctionInfo : public MachineFunctionInfo {
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private:
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/// Stores a mapping from index to symbol name for removing image handles
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/// on Fermi.
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SmallVector<std::string, 8> ImageHandleList;
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public:
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NVPTXMachineFunctionInfo(MachineFunction &MF) {}
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/// Returns the index for the symbol \p Symbol. If the symbol was previously,
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/// added, the same index is returned. Otherwise, the symbol is added and the
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/// new index is returned.
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unsigned getImageHandleSymbolIndex(const char *Symbol) {
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// Is the symbol already present?
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for (unsigned i = 0, e = ImageHandleList.size(); i != e; ++i)
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if (ImageHandleList[i] == std::string(Symbol))
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return i;
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// Nope, insert it
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ImageHandleList.push_back(Symbol);
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return ImageHandleList.size()-1;
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}
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/// Returns the symbol name at the given index.
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const char *getImageHandleSymbol(unsigned Idx) const {
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assert(ImageHandleList.size() > Idx && "Bad index");
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return ImageHandleList[Idx].c_str();
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}
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};
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}
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