1 //===-- PTXParamManager.h - Manager for .param variables --------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the PTXParamManager class, which manages all defined .param
11 // variables for a particular function.
13 //===----------------------------------------------------------------------===//
15 #ifndef PTX_PARAM_MANAGER_H
16 #define PTX_PARAM_MANAGER_H
18 #include "llvm/ADT/DenseMap.h"
19 #include "llvm/ADT/SmallVector.h"
24 /// PTXParamManager - This class manages all .param variables defined for a
25 /// particular function.
26 class PTXParamManager {
29 /// PTXParamType - Type of a .param variable
31 PTX_PARAM_TYPE_ARGUMENT,
32 PTX_PARAM_TYPE_RETURN,
36 /// PTXParam - Definition of a PTX .param variable
43 DenseMap<unsigned, PTXParam> AllParams;
44 SmallVector<unsigned, 4> ArgumentParams;
45 SmallVector<unsigned, 4> ReturnParams;
46 SmallVector<unsigned, 4> LocalParams;
50 typedef SmallVector<unsigned, 4>::const_iterator param_iterator;
54 param_iterator arg_begin() const { return ArgumentParams.begin(); }
55 param_iterator arg_end() const { return ArgumentParams.end(); }
56 param_iterator ret_begin() const { return ReturnParams.begin(); }
57 param_iterator ret_end() const { return ReturnParams.end(); }
58 param_iterator local_begin() const { return LocalParams.begin(); }
59 param_iterator local_end() const { return LocalParams.end(); }
61 /// addArgumentParam - Returns a new .param used as an argument.
62 unsigned addArgumentParam(unsigned Size);
64 /// addReturnParam - Returns a new .param used as a return argument.
65 unsigned addReturnParam(unsigned Size);
67 /// addLocalParam - Returns a new .param used as a local .param variable.
68 unsigned addLocalParam(unsigned Size);
70 /// getParamName - Returns the name of the parameter as a string.
71 const std::string &getParamName(unsigned Param) const {
72 assert(AllParams.count(Param) == 1 && "Param has not been defined!");
73 return AllParams.find(Param)->second.Name;
76 /// getParamSize - Returns the size of the parameter in bits.
77 unsigned getParamSize(unsigned Param) const {
78 assert(AllParams.count(Param) == 1 && "Param has not been defined!");
79 return AllParams.find(Param)->second.Size;