1 //===- ARCMachineFunctionInfo.h - ARC machine function info -----*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file declares ARC-specific per-machine-function information. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_LIB_TARGET_ARC_ARCMACHINEFUNCTIONINFO_H 14 #define LLVM_LIB_TARGET_ARC_ARCMACHINEFUNCTIONINFO_H 15 16 #include "llvm/CodeGen/MachineFunction.h" 17 #include <vector> 18 19 namespace llvm { 20 21 /// ARCFunctionInfo - This class is derived from MachineFunction private 22 /// ARC target-specific information for each MachineFunction. 23 class ARCFunctionInfo : public MachineFunctionInfo { 24 virtual void anchor(); 25 bool ReturnStackOffsetSet; 26 int VarArgsFrameIndex; 27 unsigned ReturnStackOffset; 28 29 public: 30 ARCFunctionInfo() 31 : ReturnStackOffsetSet(false), VarArgsFrameIndex(0), 32 ReturnStackOffset(-1U), MaxCallStackReq(0) {} 33 34 explicit ARCFunctionInfo(MachineFunction &MF) 35 : ReturnStackOffsetSet(false), VarArgsFrameIndex(0), 36 ReturnStackOffset(-1U), MaxCallStackReq(0) {} 37 ~ARCFunctionInfo() {} 38 39 MachineFunctionInfo * 40 clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF, 41 const DenseMap<MachineBasicBlock *, MachineBasicBlock *> &Src2DstMBB) 42 const override; 43 44 void setVarArgsFrameIndex(int off) { VarArgsFrameIndex = off; } 45 int getVarArgsFrameIndex() const { return VarArgsFrameIndex; } 46 47 void setReturnStackOffset(unsigned value) { 48 assert(!ReturnStackOffsetSet && "Return stack offset set twice"); 49 ReturnStackOffset = value; 50 ReturnStackOffsetSet = true; 51 } 52 53 unsigned getReturnStackOffset() const { 54 assert(ReturnStackOffsetSet && "Return stack offset not set"); 55 return ReturnStackOffset; 56 } 57 58 unsigned MaxCallStackReq; 59 }; 60 61 } // end namespace llvm 62 63 #endif // LLVM_LIB_TARGET_ARC_ARCMACHINEFUNCTIONINFO_H 64