Adjust pragma descriptions slightly

Author: simonlindholm

content/various/chapter.tex

@@ -32,8 +32,8 @@ \section{Optimization tricks}
 		\end{itemize}
 	\subsection{Pragmas}
 		\begin{itemize}
-			\item \lstinline{#pragma GCC optimize ("Ofast")} will make GCC auto-vectorize for loops and optimizes floating points better (assumes associativity and turns off denormals).
-			\item \lstinline{#pragma GCC target ("avx,avx2")} can double performance of vectorized code, but causes crashes on old machines.
+			\item \lstinline{#pragma GCC optimize ("Ofast")} will make GCC auto-vectorize loops and optimizes floating points better.
+			\item \lstinline{#pragma GCC target ("avx2")} can double performance of vectorized code, but causes crashes on old machines.
 			\item \lstinline{#pragma GCC optimize ("trapv")} kills the program on integer overflows (but is really slow).
 		\end{itemize}
 	\kactlimport{FastMod.h}