88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
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//===-- PTXParamManager.h - Manager for .param variables --------*- C++ -*-===//
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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 file defines the PTXParamManager class, which manages all defined .param
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// variables for a particular function.
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//
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//===----------------------------------------------------------------------===//
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#ifndef PTX_PARAM_MANAGER_H
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#define PTX_PARAM_MANAGER_H
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/SmallVector.h"
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#include <string>
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namespace llvm {
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/// PTXParamManager - This class manages all .param variables defined for a
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/// particular function.
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class PTXParamManager {
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private:
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/// PTXParamType - Type of a .param variable
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enum PTXParamType {
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PTX_PARAM_TYPE_ARGUMENT,
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PTX_PARAM_TYPE_RETURN,
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PTX_PARAM_TYPE_LOCAL
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};
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/// PTXParam - Definition of a PTX .param variable
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struct PTXParam {
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PTXParamType Type;
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unsigned Size;
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std::string Name;
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};
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DenseMap<unsigned, PTXParam> AllParams;
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SmallVector<unsigned, 4> ArgumentParams;
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SmallVector<unsigned, 4> ReturnParams;
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SmallVector<unsigned, 4> LocalParams;
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public:
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typedef SmallVector<unsigned, 4>::const_iterator param_iterator;
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PTXParamManager();
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param_iterator arg_begin() const { return ArgumentParams.begin(); }
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param_iterator arg_end() const { return ArgumentParams.end(); }
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param_iterator ret_begin() const { return ReturnParams.begin(); }
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param_iterator ret_end() const { return ReturnParams.end(); }
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param_iterator local_begin() const { return LocalParams.begin(); }
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param_iterator local_end() const { return LocalParams.end(); }
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/// addArgumentParam - Returns a new .param used as an argument.
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unsigned addArgumentParam(unsigned Size);
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/// addReturnParam - Returns a new .param used as a return argument.
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unsigned addReturnParam(unsigned Size);
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/// addLocalParam - Returns a new .param used as a local .param variable.
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unsigned addLocalParam(unsigned Size);
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/// getParamName - Returns the name of the parameter as a string.
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const std::string &getParamName(unsigned Param) const {
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assert(AllParams.count(Param) == 1 && "Param has not been defined!");
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return AllParams.find(Param)->second.Name;
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}
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/// getParamSize - Returns the size of the parameter in bits.
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unsigned getParamSize(unsigned Param) const {
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assert(AllParams.count(Param) == 1 && "Param has not been defined!");
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return AllParams.find(Param)->second.Size;
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}
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};
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}
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#endif
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