[LLVMdev] What cause holes in a LiveInterval?

[Tzu-Chien Chiu]

LiveInterval.cpp.

// that v is live at i'. In this implementation intervals can have holes,
// i.e. an interval might look like [1,20), [50,65), [1000,1001).  Each
// individual range is represented as an instance of LiveRange, and the whole
// interval is represented as an instance of LiveInterval.

What cause these holes?

--
Tzu-Chien Chiu - XGI Technology, Inc.
URL: http://www.csie.nctu.edu.tw/~jwchiu/