llvm/lib/Target/Xtensa/XtensaMachineFunctionInfo.h

   1 //==- XtensaMachineFunctionInfo.h - Xtensa machine function info --*- C++ -*-=//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   6 // See https://llvm.org/LICENSE.txt for license information.
   7 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   8 //
   9 //===----------------------------------------------------------------------===//
  10 //
  11 // This file declares Xtensa-specific per-machine-function information.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #ifndef LLVM_LIB_TARGET_XTENSA_XTENSAMACHINEFUNCTIONINFO_H
  16 #define LLVM_LIB_TARGET_XTENSA_XTENSAMACHINEFUNCTIONINFO_H
  17
  18 #include "llvm/CodeGen/MachineFrameInfo.h"
  19 #include "llvm/CodeGen/MachineFunction.h"
  20 #include "llvm/Target/TargetMachine.h"
  21
  22 namespace llvm {
  23
  24 class XtensaMachineFunctionInfo : public MachineFunctionInfo {
  25   /// FrameIndex of the spill slot for the scratch register in BranchRelaxation.
  26   int BranchRelaxationScratchFrameIndex = -1;
  27   unsigned VarArgsFirstGPR;
  28   int VarArgsOnStackFrameIndex;
  29   int VarArgsInRegsFrameIndex;
  30
  31 public:
  32   explicit XtensaMachineFunctionInfo(const Function &F,
  33                                      const TargetSubtargetInfo *STI)
  34       : VarArgsFirstGPR(0), VarArgsOnStackFrameIndex(0),
  35         VarArgsInRegsFrameIndex(0) {}
  36
  37   int getBranchRelaxationScratchFrameIndex() const {
  38     return BranchRelaxationScratchFrameIndex;
  39   }
  40   void setBranchRelaxationScratchFrameIndex(int Index) {
  41     BranchRelaxationScratchFrameIndex = Index;
  42   }
  43
  44   unsigned getVarArgsFirstGPR() const { return VarArgsFirstGPR; }
  45   void setVarArgsFirstGPR(unsigned GPR) { VarArgsFirstGPR = GPR; }
  46
  47   int getVarArgsOnStackFrameIndex() const { return VarArgsOnStackFrameIndex; }
  48   void setVarArgsOnStackFrameIndex(int FI) { VarArgsOnStackFrameIndex = FI; }
  49
  50   // Get and set the frame index of the first stack vararg.
  51   int getVarArgsInRegsFrameIndex() const { return VarArgsInRegsFrameIndex; }
  52   void setVarArgsInRegsFrameIndex(int FI) { VarArgsInRegsFrameIndex = FI; }
  53 };
  54
  55 } // namespace llvm
  56
  57 #endif /* LLVM_LIB_TARGET_XTENSA_XTENSAMACHINEFUNCTIONINFO_H */