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llvm/trunk/lib/Target/PowerPC/PPCFrameLowering.h
| Show First 20 Lines • Show All 66 Lines • ▼ Show 20 Lines | class PPCFrameLowering: public TargetFrameLowering { | ||||
| /** | /** | ||||
| * Create branch instruction for PPC::TCRETURN* (tail call return) | * Create branch instruction for PPC::TCRETURN* (tail call return) | ||||
| * | * | ||||
| * \param[in] MBB that is terminated by PPC::TCRETURN* | * \param[in] MBB that is terminated by PPC::TCRETURN* | ||||
| */ | */ | ||||
| void createTailCallBranchInstr(MachineBasicBlock &MBB) const; | void createTailCallBranchInstr(MachineBasicBlock &MBB) const; | ||||
| /** | |||||
| * Check if the conditions are correct to allow for the stack update | |||||
| * to be moved past the CSR save/restore code. | |||||
| */ | |||||
| bool stackUpdateCanBeMoved(MachineFunction &MF) const; | |||||
| public: | public: | ||||
| PPCFrameLowering(const PPCSubtarget &STI); | PPCFrameLowering(const PPCSubtarget &STI); | ||||
| unsigned determineFrameLayout(MachineFunction &MF, | /** | ||||
| bool UpdateMF = true, | * Determine the frame layout and update the machine function. | ||||
| */ | |||||
| unsigned determineFrameLayoutAndUpdate(MachineFunction &MF, | |||||
| bool UseEstimate = false) const; | bool UseEstimate = false) const; | ||||
| /** | |||||
| * Determine the frame layout but do not update the machine function. | |||||
| * The MachineFunction object can be const in this case as it is not | |||||
| * modified. | |||||
| */ | |||||
| unsigned determineFrameLayout(const MachineFunction &MF, | |||||
| bool UseEstimate = false, | |||||
| unsigned *NewMaxCallFrameSize = nullptr) const; | |||||
| /// emitProlog/emitEpilog - These methods insert prolog and epilog code into | /// emitProlog/emitEpilog - These methods insert prolog and epilog code into | ||||
| /// the function. | /// the function. | ||||
| void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override; | void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override; | ||||
| void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override; | void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override; | ||||
| bool hasFP(const MachineFunction &MF) const override; | bool hasFP(const MachineFunction &MF) const override; | ||||
| bool needsFP(const MachineFunction &MF) const; | bool needsFP(const MachineFunction &MF) const; | ||||
| void replaceFPWithRealFP(MachineFunction &MF) const; | void replaceFPWithRealFP(MachineFunction &MF) const; | ||||
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