On 9/20/16, Scott Hess <[email protected]> wrote:
> I also see that some systems
> include __builtin_mul_overflow() intrinsics, which can use the CPU's
> overflow flag, if available, which seems plausible.
>
I too have seen this, and look forward to the wide-spread availability
of these routines. The functions are not available on my 4.8.4 GCC,
nor on MSVC 2012 (afaik).
Other intrinsic functions are used in SQLite. For example:
https://www.sqlite.org/src/artifact/3e2da61018?ln=1135-1157
Intrinsic functions can make a big difference in performance.
--
D. Richard Hipp
[email protected]
_______________________________________________
sqlite-users mailing list
[email protected]
http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
