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 LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZMACHINEFUNCTIONINFO_H
11 #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZMACHINEFUNCTIONINFO_H
13 #include "llvm/CodeGen/MachineFunction.h"
17 class SystemZMachineFunctionInfo : public MachineFunctionInfo {
18 virtual void anchor();
20 unsigned HighSavedGPR;
21 unsigned VarArgsFirstGPR;
22 unsigned VarArgsFirstFPR;
23 unsigned VarArgsFrameIndex;
24 unsigned RegSaveFrameIndex;
26 unsigned NumLocalDynamics;
29 explicit SystemZMachineFunctionInfo(MachineFunction &MF)
30 : LowSavedGPR(0), HighSavedGPR(0), VarArgsFirstGPR(0), VarArgsFirstFPR(0),
31 VarArgsFrameIndex(0), RegSaveFrameIndex(0), ManipulatesSP(false),
32 NumLocalDynamics(0) {}
34 // Get and set the first call-saved GPR that should be saved and restored
35 // by this function. This is 0 if no GPRs need to be saved or restored.
36 unsigned getLowSavedGPR() const { return LowSavedGPR; }
37 void setLowSavedGPR(unsigned Reg) { LowSavedGPR = Reg; }
39 // Get and set the last call-saved GPR that should be saved and restored
41 unsigned getHighSavedGPR() const { return HighSavedGPR; }
42 void setHighSavedGPR(unsigned Reg) { HighSavedGPR = Reg; }
44 // Get and set the number of fixed (as opposed to variable) arguments
45 // that are passed in GPRs to this function.
46 unsigned getVarArgsFirstGPR() const { return VarArgsFirstGPR; }
47 void setVarArgsFirstGPR(unsigned GPR) { VarArgsFirstGPR = GPR; }
50 unsigned getVarArgsFirstFPR() const { return VarArgsFirstFPR; }
51 void setVarArgsFirstFPR(unsigned FPR) { VarArgsFirstFPR = FPR; }
53 // Get and set the frame index of the first stack vararg.
54 unsigned getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
55 void setVarArgsFrameIndex(unsigned FI) { VarArgsFrameIndex = FI; }
57 // Get and set the frame index of the register save area
58 // (i.e. the incoming stack pointer).
59 unsigned getRegSaveFrameIndex() const { return RegSaveFrameIndex; }
60 void setRegSaveFrameIndex(unsigned FI) { RegSaveFrameIndex = FI; }
62 // Get and set whether the function directly manipulates the stack pointer,
63 // e.g. through STACKSAVE or STACKRESTORE.
64 bool getManipulatesSP() const { return ManipulatesSP; }
65 void setManipulatesSP(bool MSP) { ManipulatesSP = MSP; }
67 // Count number of local-dynamic TLS symbols used.
68 unsigned getNumLocalDynamicTLSAccesses() const { return NumLocalDynamics; }
69 void incNumLocalDynamicTLSAccesses() { ++NumLocalDynamics; }
72 } // end namespace llvm