FromRealReg returns a VReg from the given RealReg and RegType.

NewAllocator returns a new Allocator.

NewRegSet returns a new RegSet with the given registers.

RegTypeOf returns the RegType of the given ssa.Type.

RealReg represents a physical register.

RegSet represents a set of registers.

RegType represents the type of a register.

VReg represents a register which is assigned to an SSA value.

VRegID is the lower 32bit of VReg, which is the pure identifier of VReg without RealReg info.