-xprefetch[={yes|no}]

(SPARC) Use prefetch instructions on UltraSPARC II processors.

With -xprefetch=yes, the compiler is free to insert prefetch instructions into the code it generates. This can result in a performance improvement on UltraSPARC II processors.

The default is -xprefetch=no. -xprefetch is equivalent to -xprefetch=yes.