Differential D60716 Diff 208639 llvm/trunk/include/llvm/CodeGen/TargetRegisterInfo.h

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llvm/trunk/include/llvm/CodeGen/TargetRegisterInfo.h

Show First 20 Lines • Show All 525 Lines • ▼ Show 20 Line(s)		249	public:
526	}	526		}
527		527
528	/// Physical registers that may be modified within a function but are	528		/// Physical registers that may be modified within a function but are
529	/// guaranteed to be restored before any uses. This is useful for targets that	529		/// guaranteed to be restored before any uses. This is useful for targets that
530	/// have call sequences where a GOT register may be updated by the caller	530		/// have call sequences where a GOT register may be updated by the caller
531	/// prior to a call and is guaranteed to be restored (also by the caller)	531		/// prior to a call and is guaranteed to be restored (also by the caller)
532	/// after the call.	532		/// after the call.
533	virtual bool isCallerPreservedPhysReg(unsigned PhysReg,	533		virtual bool isCallerPreservedPhysReg(unsigned PhysReg,
534	const MachineFunction &MF) const {	534		const MachineFunction &MF) const;
535	return false;
536	}
537		535
538	/// Prior to adding the live-out mask to a stackmap or patchpoint	536		/// Prior to adding the live-out mask to a stackmap or patchpoint
539	/// instruction, provide the target the opportunity to adjust it (mainly to	537		/// instruction, provide the target the opportunity to adjust it (mainly to
540	/// remove pseudo-registers that should be ignored).	538		/// remove pseudo-registers that should be ignored).
541	virtual void adjustStackMapLiveOutMask(uint32_t *Mask) const {}	539		virtual void adjustStackMapLiveOutMask(uint32_t *Mask) const {}
542		540
543	/// Return a super-register of the specified register	541		/// Return a super-register of the specified register
544	/// Reg so its sub-register of index SubIdx is Reg.	542		/// Reg so its sub-register of index SubIdx is Reg.
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