1 //=- HexagonMachineFunctionInfo.h - Hexagon machine function info -*- C++ -*-=//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef LLVM_LIB_TARGET_HEXAGON_HEXAGONMACHINEFUNCTIONINFO_H
11 #define LLVM_LIB_TARGET_HEXAGON_HEXAGONMACHINEFUNCTIONINFO_H
13 #include "llvm/CodeGen/MachineFunction.h"
19 const unsigned int StartPacket = 0x1;
20 const unsigned int EndPacket = 0x2;
24 /// Hexagon target-specific information for each MachineFunction.
25 class HexagonMachineFunctionInfo : public MachineFunctionInfo {
26 // SRetReturnReg - Some subtargets require that sret lowering includes
27 // returning the value of the returned struct in a register. This field
28 // holds the virtual register into which the sret argument is passed.
29 unsigned SRetReturnReg;
30 std::vector<MachineInstr*> AllocaAdjustInsts;
31 int VarArgsFrameIndex;
34 std::map<const MachineInstr*, unsigned> PacketInfo;
35 virtual void anchor();
38 HexagonMachineFunctionInfo() : SRetReturnReg(0), HasClobberLR(0),
41 HexagonMachineFunctionInfo(MachineFunction &MF) : SRetReturnReg(0),
45 unsigned getSRetReturnReg() const { return SRetReturnReg; }
46 void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
48 void addAllocaAdjustInst(MachineInstr* MI) {
49 AllocaAdjustInsts.push_back(MI);
51 const std::vector<MachineInstr*>& getAllocaAdjustInsts() {
52 return AllocaAdjustInsts;
55 void setVarArgsFrameIndex(int v) { VarArgsFrameIndex = v; }
56 int getVarArgsFrameIndex() { return VarArgsFrameIndex; }
58 void setStartPacket(MachineInstr* MI) {
59 PacketInfo[MI] |= Hexagon::StartPacket;
61 void setEndPacket(MachineInstr* MI) {
62 PacketInfo[MI] |= Hexagon::EndPacket;
64 bool isStartPacket(const MachineInstr* MI) const {
65 return (PacketInfo.count(MI) &&
66 (PacketInfo.find(MI)->second & Hexagon::StartPacket));
68 bool isEndPacket(const MachineInstr* MI) const {
69 return (PacketInfo.count(MI) &&
70 (PacketInfo.find(MI)->second & Hexagon::EndPacket));
72 void setHasClobberLR(bool v) { HasClobberLR = v; }
73 bool hasClobberLR() const { return HasClobberLR; }
75 bool hasEHReturn() const { return HasEHReturn; };
76 void setHasEHReturn(bool H = true) { HasEHReturn = H; };
78 } // End llvm namespace