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Differential D112429 Diff 392315 llvm/lib/Target/ARM/ARMBaseInstrInfo.h

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llvm/lib/Target/ARM/ARMBaseInstrInfo.h

Show First 20 Lines • Show All 371 Lines • ▼ Show 20 Lines	return MI->getOpcode() == ARM::t2LoopEndDec \|\|
MI->getOpcode() == ARM::t2WhileLoopStartTP;		MI->getOpcode() == ARM::t2WhileLoopStartTP;
}		}

private:		private:
/// Returns an unused general-purpose register which can be used for		/// Returns an unused general-purpose register which can be used for
/// constructing an outlined call if one exists. Returns 0 otherwise.		/// constructing an outlined call if one exists. Returns 0 otherwise.
unsigned findRegisterToSaveLRTo(const outliner::Candidate &C) const;		unsigned findRegisterToSaveLRTo(const outliner::Candidate &C) const;

// Adds an instruction which saves the link register on top of the stack into		/// Adds an instruction which saves the link register on top of the stack into
/// the MachineBasicBlock \p MBB at position \p It.		/// the MachineBasicBlock \p MBB at position \p It. If \p Auth is true,
void saveLROnStack(MachineBasicBlock &MBB,		/// compute and store an authentication code alongiside the link register.
MachineBasicBlock::iterator It) const;		/// If \p CFI is true, emit CFI instructions.
		void saveLROnStack(MachineBasicBlock &MBB, MachineBasicBlock::iterator It,
		bool CFI, bool Auth) const;

/// Adds an instruction which restores the link register from the top the		/// Adds an instruction which restores the link register from the top the
/// stack into the MachineBasicBlock \p MBB at position \p It.		/// stack into the MachineBasicBlock \p MBB at position \p It. If \p Auth is
		/// true, restore an authentication code and authenticate LR.
		/// If \p CFI is true, emit CFI instructions.
void restoreLRFromStack(MachineBasicBlock &MBB,		void restoreLRFromStack(MachineBasicBlock &MBB,
MachineBasicBlock::iterator It) const;		MachineBasicBlock::iterator It, bool CFI,
		bool Auth) const;
/// Emit CFI instructions into the MachineBasicBlock \p MBB at position \p It,
/// for the case when the LR is saved on the stack.
void emitCFIForLRSaveOnStack(MachineBasicBlock &MBB,
MachineBasicBlock::iterator It) const;

/// Emit CFI instructions into the MachineBasicBlock \p MBB at position \p It,		/// Emit CFI instructions into the MachineBasicBlock \p MBB at position \p It,
/// for the case when the LR is saved in the register \p Reg.		/// for the case when the LR is saved in the register \p Reg.
void emitCFIForLRSaveToReg(MachineBasicBlock &MBB,		void emitCFIForLRSaveToReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator It,		MachineBasicBlock::iterator It,
Register Reg) const;		Register Reg) const;

/// Emit CFI instructions into the MachineBasicBlock \p MBB at position \p It,		/// Emit CFI instructions into the MachineBasicBlock \p MBB at position \p It,
/// after the LR is was restored from the stack.
void emitCFIForLRRestoreFromStack(MachineBasicBlock &MBB,
MachineBasicBlock::iterator It) const;

/// Emit CFI instructions into the MachineBasicBlock \p MBB at position \p It,
/// after the LR is was restored from a register.		/// after the LR is was restored from a register.
void emitCFIForLRRestoreFromReg(MachineBasicBlock &MBB,		void emitCFIForLRRestoreFromReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator It) const;		MachineBasicBlock::iterator It) const;
/// \brief Sets the offsets on outlined instructions in \p MBB which use SP		/// \brief Sets the offsets on outlined instructions in \p MBB which use SP
/// so that they will be valid post-outlining.		/// so that they will be valid post-outlining.
///		///
/// \param MBB A \p MachineBasicBlock in an outlined function.		/// \param MBB A \p MachineBasicBlock in an outlined function.
void fixupPostOutline(MachineBasicBlock &MBB) const;		void fixupPostOutline(MachineBasicBlock &MBB) const;
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