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 |