<p>Live Intervals are the ranges (intervals) where a variable is <i>live</i>.
They are used by some <a href="#regalloc">register allocator</a> 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 <i>spilled</i>.</p>
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