PTXMachineFunctionInfo.h revision f48817cbf98472c4007e38ff7dad57126531a6e0 
1//===- PTXMachineFuctionInfo.h - PTX machine function info -------*- C++ -*-==//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file declares PTX-specific per-machine-function information.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef PTX_MACHINE_FUNCTION_INFO_H
15#define PTX_MACHINE_FUNCTION_INFO_H
16
17#include "PTX.h"
18#include "llvm/CodeGen/MachineFunction.h"
19
20namespace llvm {
21/// PTXMachineFunctionInfo - This class is derived from MachineFunction and
22/// contains private PTX target-specific information for each MachineFunction.
23///
24class PTXMachineFunctionInfo : public MachineFunctionInfo {
25private:
26  bool is_kernel;
27  std::vector<unsigned> reg_arg, reg_local_var;
28  unsigned reg_ret;
29  bool _isDoneAddArg;
30
31public:
32  PTXMachineFunctionInfo(MachineFunction &MF)
33    : is_kernel(false), reg_ret(PTX::NoRegister), _isDoneAddArg(false) {
34      reg_arg.reserve(8);
35      reg_local_var.reserve(32);
36    }
37
38  void setKernel(bool _is_kernel=true) { is_kernel = _is_kernel; }
39
40  void addArgReg(unsigned reg) { reg_arg.push_back(reg); }
41  void addLocalVarReg(unsigned reg) { reg_local_var.push_back(reg); }
42  void setRetReg(unsigned reg) { reg_ret = reg; }
43
44  void doneAddArg(void) {
45    std::sort(reg_arg.begin(), reg_arg.end());
46    _isDoneAddArg = true;
47  }
48  void doneAddLocalVar(void) {
49    std::sort(reg_local_var.begin(), reg_local_var.end());
50  }
51
52  bool isDoneAddArg(void) { return _isDoneAddArg; }
53
54  bool isKernel() const { return is_kernel; }
55
56  typedef std::vector<unsigned>::const_iterator         reg_iterator;
57  typedef std::vector<unsigned>::const_reverse_iterator reg_reverse_iterator;
58
59  bool         argRegEmpty() const { return reg_arg.empty(); }
60  int          getNumArg() const { return reg_arg.size(); }
61  reg_iterator argRegBegin() const { return reg_arg.begin(); }
62  reg_iterator argRegEnd()   const { return reg_arg.end(); }
63  reg_reverse_iterator argRegReverseBegin() const { return reg_arg.rbegin(); }
64  reg_reverse_iterator argRegReverseEnd() const { return reg_arg.rend(); }
65
66  bool         localVarRegEmpty() const { return reg_local_var.empty(); }
67  reg_iterator localVarRegBegin() const { return reg_local_var.begin(); }
68  reg_iterator localVarRegEnd()   const { return reg_local_var.end(); }
69
70  unsigned retReg() const { return reg_ret; }
71
72  bool isArgReg(unsigned reg) const {
73    return std::binary_search(reg_arg.begin(), reg_arg.end(), reg);
74  }
75
76  bool isLocalVarReg(unsigned reg) const {
77    return std::binary_search(reg_local_var.begin(), reg_local_var.end(), reg);
78  }
79}; // class PTXMachineFunctionInfo
80} // namespace llvm
81
82#endif // PTX_MACHINE_FUNCTION_INFO_H
83