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 38 ~ARCFunctionInfo() {} 39 40 void setVarArgsFrameIndex(int off) { VarArgsFrameIndex = off; } 41 int getVarArgsFrameIndex() const { return VarArgsFrameIndex; } 42 43 void setReturnStackOffset(unsigned value) { 44 assert(!ReturnStackOffsetSet && "Return stack offset set twice"); 45 ReturnStackOffset = value; 46 ReturnStackOffsetSet = true; 47 } 48 49 unsigned getReturnStackOffset() const { 50 assert(ReturnStackOffsetSet && "Return stack offset not set"); 51 return ReturnStackOffset; 52 } 53 54 unsigned MaxCallStackReq; 55 }; 56 57 } // end namespace llvm 58 59 #endif // LLVM_LIB_TARGET_ARC_ARCMACHINEFUNCTIONINFO_H 60