Merge pull request #213 from abhinav-upadhyay/patch-3

Remove repeated occurrence of "interference graph"

Author: jsiek

book.tex

@@ -5321,7 +5321,7 @@ \section{Registers and Calling Conventions}
 we compute which variables are in use at every instruction
 (section~\ref{sec:liveness-analysis-Lvar}). When we build the
 interference graph (section~\ref{sec:build-interference}), we can
-place an edge in the interference graph between each call-live
+place an edge in the graph between each call-live
 variable and the caller-saved registers. This will prevent the graph
 coloring algorithm from assigning call-live variables to caller-saved
 registers.