1 //===- PTXMachineFuctionInfo.h - PTX machine function info -------*- 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 declares PTX-specific per-machine-function information.
12 //===----------------------------------------------------------------------===//
14 #ifndef PTX_MACHINE_FUNCTION_INFO_H
15 #define PTX_MACHINE_FUNCTION_INFO_H
18 #include "llvm/ADT/DenseSet.h"
19 #include "llvm/CodeGen/MachineFunction.h"
22 /// PTXMachineFunctionInfo - This class is derived from MachineFunction and
23 /// contains private PTX target-specific information for each MachineFunction.
25 class PTXMachineFunctionInfo : public MachineFunctionInfo {
28 std::vector<unsigned> reg_arg, reg_local_var;
29 DenseSet<unsigned> reg_ret;
33 PTXMachineFunctionInfo(MachineFunction &MF)
34 : is_kernel(false), reg_ret(PTX::NoRegister), _isDoneAddArg(false) {
36 reg_local_var.reserve(32);
39 void setKernel(bool _is_kernel=true) { is_kernel = _is_kernel; }
41 void addArgReg(unsigned reg) { reg_arg.push_back(reg); }
42 void addLocalVarReg(unsigned reg) { reg_local_var.push_back(reg); }
43 void addRetReg(unsigned reg) { reg_ret.insert(reg); }
45 void doneAddArg(void) {
48 void doneAddLocalVar(void) {}
50 bool isKernel() const { return is_kernel; }
52 typedef std::vector<unsigned>::const_iterator reg_iterator;
53 typedef std::vector<unsigned>::const_reverse_iterator reg_reverse_iterator;
54 typedef DenseSet<unsigned>::const_iterator ret_iterator;
56 bool argRegEmpty() const { return reg_arg.empty(); }
57 int getNumArg() const { return reg_arg.size(); }
58 reg_iterator argRegBegin() const { return reg_arg.begin(); }
59 reg_iterator argRegEnd() const { return reg_arg.end(); }
60 reg_reverse_iterator argRegReverseBegin() const { return reg_arg.rbegin(); }
61 reg_reverse_iterator argRegReverseEnd() const { return reg_arg.rend(); }
63 bool localVarRegEmpty() const { return reg_local_var.empty(); }
64 reg_iterator localVarRegBegin() const { return reg_local_var.begin(); }
65 reg_iterator localVarRegEnd() const { return reg_local_var.end(); }
67 bool retRegEmpty() const { return reg_ret.empty(); }
68 int getNumRet() const { return reg_ret.size(); }
69 ret_iterator retRegBegin() const { return reg_ret.begin(); }
70 ret_iterator retRegEnd() const { return reg_ret.end(); }
72 bool isArgReg(unsigned reg) const {
73 return std::find(reg_arg.begin(), reg_arg.end(), reg) != reg_arg.end();
76 bool isRetReg(unsigned reg) const {
77 return std::find(reg_ret.begin(), reg_ret.end(), reg) != reg_ret.end();
80 bool isLocalVarReg(unsigned reg) const {
81 return std::find(reg_local_var.begin(), reg_local_var.end(), reg)
82 != reg_local_var.end();
84 }; // class PTXMachineFunctionInfo
87 #endif // PTX_MACHINE_FUNCTION_INFO_H