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75 lines
2.8 KiB
C
75 lines
2.8 KiB
C
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//==- SystemZMachineFuctionInfo.h - SystemZ machine function info -*- C++ -*-=//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SYSTEMZMACHINEFUNCTIONINFO_H
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#define SYSTEMZMACHINEFUNCTIONINFO_H
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#include "llvm/CodeGen/MachineFunction.h"
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namespace llvm {
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class SystemZMachineFunctionInfo : public MachineFunctionInfo {
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unsigned SavedGPRFrameSize;
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unsigned LowSavedGPR;
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unsigned HighSavedGPR;
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unsigned VarArgsFirstGPR;
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unsigned VarArgsFirstFPR;
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unsigned VarArgsFrameIndex;
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unsigned RegSaveFrameIndex;
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bool ManipulatesSP;
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public:
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explicit SystemZMachineFunctionInfo(MachineFunction &MF)
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: SavedGPRFrameSize(0), LowSavedGPR(0), HighSavedGPR(0), VarArgsFirstGPR(0),
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VarArgsFirstFPR(0), VarArgsFrameIndex(0), RegSaveFrameIndex(0),
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ManipulatesSP(false) {}
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// Get and set the number of bytes allocated by generic code to store
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// call-saved GPRs.
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unsigned getSavedGPRFrameSize() const { return SavedGPRFrameSize; }
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void setSavedGPRFrameSize(unsigned bytes) { SavedGPRFrameSize = bytes; }
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// Get and set the first call-saved GPR that should be saved and restored
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// by this function. This is 0 if no GPRs need to be saved or restored.
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unsigned getLowSavedGPR() const { return LowSavedGPR; }
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void setLowSavedGPR(unsigned Reg) { LowSavedGPR = Reg; }
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// Get and set the last call-saved GPR that should be saved and restored
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// by this function.
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unsigned getHighSavedGPR() const { return HighSavedGPR; }
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void setHighSavedGPR(unsigned Reg) { HighSavedGPR = Reg; }
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// Get and set the number of fixed (as opposed to variable) arguments
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// that are passed in GPRs to this function.
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unsigned getVarArgsFirstGPR() const { return VarArgsFirstGPR; }
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void setVarArgsFirstGPR(unsigned GPR) { VarArgsFirstGPR = GPR; }
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// Likewise FPRs.
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unsigned getVarArgsFirstFPR() const { return VarArgsFirstFPR; }
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void setVarArgsFirstFPR(unsigned FPR) { VarArgsFirstFPR = FPR; }
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// Get and set the frame index of the first stack vararg.
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unsigned getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
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void setVarArgsFrameIndex(unsigned FI) { VarArgsFrameIndex = FI; }
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// Get and set the frame index of the register save area
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// (i.e. the incoming stack pointer).
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unsigned getRegSaveFrameIndex() const { return RegSaveFrameIndex; }
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void setRegSaveFrameIndex(unsigned FI) { RegSaveFrameIndex = FI; }
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// Get and set whether the function directly manipulates the stack pointer,
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// e.g. through STACKSAVE or STACKRESTORE.
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bool getManipulatesSP() const { return ManipulatesSP; }
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void setManipulatesSP(bool MSP) { ManipulatesSP = MSP; }
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};
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} // end llvm namespace
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#endif
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