These options enable and disable automatic inlining of functions.
The compiler automatically inlines functions at the higher
optimization levels where it is sensible to do so. The
together with some other factors such as function size, influence
how the compiler automatically inlines functions.
-Otime, in combination with various
other factors, increases the likelihood that functions are inlined.
In general, when automatic inlining is enabled, the compiler
inlines any function that is sensible to inline. When automatic
inlining is disabled, only functions marked as
candidates for inlining.