llvm::MIBundleBuilder Class Reference

Helper class for constructing bundles of MachineInstrs. More...

#include "llvm/CodeGen/MachineInstrBuilder.h"

Public Member Functions
	MIBundleBuilder (MachineBasicBlock &BB, MachineBasicBlock::iterator Pos)
	Create an MIBundleBuilder that inserts instructions into a new bundle in BB above the bundle or instruction at Pos.
	MIBundleBuilder (MachineBasicBlock &BB, MachineBasicBlock::iterator B, MachineBasicBlock::iterator E)
	Create a bundle from the sequence of instructions between B and E.
	MIBundleBuilder (MachineInstr *MI)
	Create an MIBundleBuilder representing an existing instruction or bundle that has MI as its head.
MachineBasicBlock &	getMBB () const
	Return a reference to the basic block containing this bundle.
bool	empty () const
	Return true if no instructions have been inserted in this bundle yet.
MachineBasicBlock::instr_iterator	begin () const
	Return an iterator to the first bundled instruction.
MachineBasicBlock::instr_iterator	end () const
	Return an iterator beyond the last bundled instruction.
MIBundleBuilder &	insert (MachineBasicBlock::instr_iterator I, MachineInstr *MI)
	Insert MI into this bundle before I which must point to an instruction in the bundle, or end().
MIBundleBuilder &	prepend (MachineInstr *MI)
	Insert MI into MBB by prepending it to the instructions in the bundle.
MIBundleBuilder &	append (MachineInstr *MI)
	Insert MI into MBB by appending it to the instructions in the bundle.

Detailed Description

Helper class for constructing bundles of MachineInstrs.

MIBundleBuilder can create a bundle from scratch by inserting new MachineInstrs one at a time, or it can create a bundle from a sequence of existing MachineInstrs in a basic block.

Definition at line 567 of file MachineInstrBuilder.h.

Constructor & Destructor Documentation

MIBundleBuilder() [1/3]

llvm::MIBundleBuilder::MIBundleBuilder ( MachineBasicBlock &  BB, MachineBasicBlock::iterator  Pos  )

inline

Create an MIBundleBuilder that inserts instructions into a new bundle in BB above the bundle or instruction at Pos.

Definition at line 575 of file MachineInstrBuilder.h.

References MBB.

MIBundleBuilder() [2/3]

llvm::MIBundleBuilder::MIBundleBuilder ( MachineBasicBlock &  BB, MachineBasicBlock::iterator  B, MachineBasicBlock::iterator  E  )

inline

Create a bundle from the sequence of instructions between B and E.

Definition at line 579 of file MachineInstrBuilder.h.

References assert(), B, E, MBB, and MI.

MIBundleBuilder() [3/3]

llvm::MIBundleBuilder::MIBundleBuilder ( MachineInstr *  MI )

inlineexplicit

Create an MIBundleBuilder representing an existing instruction or bundle that has MI as its head.

Definition at line 593 of file MachineInstrBuilder.h.

References MBB.

Member Function Documentation

append()

MIBundleBuilder & llvm::MIBundleBuilder::append ( MachineInstr *  MI )

inline

Insert MI into MBB by appending it to the instructions in the bundle.

MI will become the last instruction in the bundle.

Definition at line 640 of file MachineInstrBuilder.h.

References end(), insert(), and MI.

Referenced by llvm::SIInstrInfo::expandPostRAPseudo(), and for().

begin()

MachineBasicBlock::instr_iterator llvm::MIBundleBuilder::begin ( ) const

inline

Return an iterator to the first bundled instruction.

Definition at line 605 of file MachineInstrBuilder.h.

Referenced by llvm::SITargetLowering::bundleInstWithWaitcnt(), llvm::SIInstrInfo::expandPostRAPseudo(), and prepend().

empty()

bool llvm::MIBundleBuilder::empty ( ) const

inline

Return true if no instructions have been inserted in this bundle yet.

Empty bundles aren't representable in a MachineBasicBlock.

Definition at line 602 of file MachineInstrBuilder.h.

Referenced by insert().

end()

MachineBasicBlock::instr_iterator llvm::MIBundleBuilder::end ( ) const

inline

Return an iterator beyond the last bundled instruction.

Definition at line 608 of file MachineInstrBuilder.h.

Referenced by append().

getMBB()

MachineBasicBlock & llvm::MIBundleBuilder::getMBB ( ) const

inline

Return a reference to the basic block containing this bundle.

Definition at line 598 of file MachineInstrBuilder.h.

References MBB.

insert()

MIBundleBuilder & llvm::MIBundleBuilder::insert ( MachineBasicBlock::instr_iterator  I, MachineInstr *  MI  )

inline

Insert MI into this bundle before I which must point to an instruction in the bundle, or end().

Definition at line 612 of file MachineInstrBuilder.h.

References llvm::MachineInstr::BundledPred, llvm::MachineInstr::BundledSucc, empty(), I, MBB, and MI.

Referenced by append(), and prepend().

prepend()

MIBundleBuilder & llvm::MIBundleBuilder::prepend ( MachineInstr *  MI )

inline

Insert MI into MBB by prepending it to the instructions in the bundle.

MI will become the first instruction in the bundle.

Definition at line 634 of file MachineInstrBuilder.h.

References begin(), insert(), and MI.

Referenced by llvm::finalizeBundle().

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The documentation for this class was generated from the following file:

• include/llvm/CodeGen/MachineInstrBuilder.h