| 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 | explicit ARCFunctionInfo(const Function &F, const TargetSubtargetInfo *STI) |
| 31 | : ReturnStackOffsetSet(false), VarArgsFrameIndex(0), |
| 32 | ReturnStackOffset(-1U), MaxCallStackReq(0) {} |
| 33 | ~ARCFunctionInfo() {} |
| 34 | |
| 35 | MachineFunctionInfo * |
| 36 | clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF, |
| 37 | const DenseMap<MachineBasicBlock *, MachineBasicBlock *> &Src2DstMBB) |
| 38 | const override; |
| 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 |