Constructs a new LiveRange object.

Create a LiveRangeEdit for breaking down parent into smaller pieces. @param parent The register being spilled or split. @param newRegs List to receive

Create a LiveRangeUpdater for adding segments to LR. LR will temporarily be in an invalid state until flush() is called.

Constructs a new empty LiveRegUnits set.

Pass identification, replacement for typeid

Log2_64 - This function returns the floor log base 2 of the specified value, -1 if the value is zero. (64 bit edition.)

Log2_64_Ceil - This function returns the ceil log base 2 of the specified value, 64 if the value is zero. (64 bit edition.)

This hook must be implemented to lower calls into the specified DAG. The outgoing arguments to the call are described by the Outs array, and the value

This hook must be implemented to lower the incoming (formal) arguments, described by the Ins array, into the specified DAG. The implementation should

This hook must be implemented to lower outgoing return values, described by the Outs array, into the specified DAG. The implementation should return t

Returns an iterator for the begin of the idx2MBBMap.

Return an iterator for the end of the idx2MBBMap.

Checks if tied operands exist in the instruction and sets - The writeback flag in detail - Saves the indices of the tied destination operands.

Check if any operand of the MCInstrDesc is predicable

API for MachineFunction::Delegate

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

MIBundleOperandIteratorBase - Create an iterator that visits all operands on MI, or all operands on every instruction in the bundle containing MI. @p

Constructor for an iterator past the last iteration.

PassNum is the sequence number this pass is called, start from 1.

Intrusive list support

The only constructor.

Some constructors for easy use.