1 //==- SystemZMachineFuctionInfo.h - SystemZ 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 SYSTEMZMACHINEFUNCTIONINFO_H
11 #define SYSTEMZMACHINEFUNCTIONINFO_H
13 #include "llvm/CodeGen/MachineFunction.h"
17 class SystemZMachineFunctionInfo : public MachineFunctionInfo {
18 unsigned SavedGPRFrameSize;
20 unsigned HighSavedGPR;
21 unsigned VarArgsFirstGPR;
22 unsigned VarArgsFirstFPR;
23 unsigned VarArgsFrameIndex;
24 unsigned RegSaveFrameIndex;
28 explicit SystemZMachineFunctionInfo(MachineFunction &MF)
29 : SavedGPRFrameSize(0), LowSavedGPR(0), HighSavedGPR(0), VarArgsFirstGPR(0),
30 VarArgsFirstFPR(0), VarArgsFrameIndex(0), RegSaveFrameIndex(0),
31 ManipulatesSP(false) {}
33 // Get and set the number of bytes allocated by generic code to store
35 unsigned getSavedGPRFrameSize() const { return SavedGPRFrameSize; }
36 void setSavedGPRFrameSize(unsigned bytes) { SavedGPRFrameSize = bytes; }
38 // Get and set the first call-saved GPR that should be saved and restored
39 // by this function. This is 0 if no GPRs need to be saved or restored.
40 unsigned getLowSavedGPR() const { return LowSavedGPR; }
41 void setLowSavedGPR(unsigned Reg) { LowSavedGPR = Reg; }
43 // Get and set the last call-saved GPR that should be saved and restored
45 unsigned getHighSavedGPR() const { return HighSavedGPR; }
46 void setHighSavedGPR(unsigned Reg) { HighSavedGPR = Reg; }
48 // Get and set the number of fixed (as opposed to variable) arguments
49 // that are passed in GPRs to this function.
50 unsigned getVarArgsFirstGPR() const { return VarArgsFirstGPR; }
51 void setVarArgsFirstGPR(unsigned GPR) { VarArgsFirstGPR = GPR; }
54 unsigned getVarArgsFirstFPR() const { return VarArgsFirstFPR; }
55 void setVarArgsFirstFPR(unsigned FPR) { VarArgsFirstFPR = FPR; }
57 // Get and set the frame index of the first stack vararg.
58 unsigned getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
59 void setVarArgsFrameIndex(unsigned FI) { VarArgsFrameIndex = FI; }
61 // Get and set the frame index of the register save area
62 // (i.e. the incoming stack pointer).
63 unsigned getRegSaveFrameIndex() const { return RegSaveFrameIndex; }
64 void setRegSaveFrameIndex(unsigned FI) { RegSaveFrameIndex = FI; }
66 // Get and set whether the function directly manipulates the stack pointer,
67 // e.g. through STACKSAVE or STACKRESTORE.
68 bool getManipulatesSP() const { return ManipulatesSP; }
69 void setManipulatesSP(bool MSP) { ManipulatesSP = MSP; }
72 } // end llvm namespace