| //===-- PPCMachineFunctionInfo.h - Private data used for PowerPC --*- C++ -*-=// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file was developed by James M. Laskey and is distributed under |
| // the University of Illinois Open Source License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file declares the PowerPC specific subclass of MachineFunctionInfo. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef PPC_MACHINE_FUNCTION_INFO_H |
| #define PPC_MACHINE_FUNCTION_INFO_H |
| |
| #include "llvm/CodeGen/MachineFunction.h" |
| |
| namespace llvm { |
| |
| /// PPCFunctionInfo - This class is derived from MachineFunction private |
| /// PowerPC target-specific information for each MachineFunction. |
| class PPCFunctionInfo : public MachineFunctionInfo { |
| private: |
| /// FramePointerSaveIndex - Frame index of where the old frame pointer is |
| /// stored. Also used as an anchor for instructions that need to be altered |
| /// when using frame pointers (dyna_add, dyna_sub.) |
| int FramePointerSaveIndex; |
| |
| /// UsesLR - Indicates whether LR is used in the current function. |
| /// |
| bool UsesLR; |
| |
| public: |
| PPCFunctionInfo(MachineFunction& MF) |
| : FramePointerSaveIndex(0) |
| {} |
| |
| int getFramePointerSaveIndex() const { return FramePointerSaveIndex; } |
| void setFramePointerSaveIndex(int Idx) { FramePointerSaveIndex = Idx; } |
| |
| void setUsesLR(bool U) { UsesLR = U; } |
| bool usesLR() { return UsesLR; } |
| |
| }; |
| |
| } // end of namespace llvm |
| |
| |
| #endif |