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\end{verbatim}  \end{small}  \noindent Note that the second line inserts a never-firing open OSR point at instruction basic block  labeled with {\tt 8} (actually {\tt :8}) in function {\tt bench} of file {\tt shootout/n-body/bench.ll}, using branch weight of 5\% as a hint for the LLVM native code generation back-end that OSR firing is very unlikely. The experiment duration was $\approx1$m with a time per trial of $\approx5.673$s. The ratio $5.673/5.725=0.990$ for {\tt n-body} is slightly smaller than the one reported in \ref{fig:code-quality-base} on the Intel Xeon. The experiment for building \ref{fig:code-quality-O1} uses scripts in {\tt bench-O1} and {\tt codeQuality-O1}.