From 41b3252e797c01f73616c8ba91caa8783620aeb4 Mon Sep 17 00:00:00 2001
From: Bill Wendling
Live Intervals are the ranges (intervals) where a variable is live. They are used by some register allocator passes to determine if two or more virtual registers which require the same physical -register are live at the same point in the program (i.e., theyconflict). When +register are live at the same point in the program (i.e., they conflict). When this situation occurs, one virtual register must be spilled.
-- 2.34.1