[LLVMdev] [PATCH]: MSVC build enhancements

[OvermindDL1]

Whoops, mailing list headers still broken, sending to the list this time:

On Sat, Mar 6, 2010 at 3:35 PM, OvermindDL1 <overminddl1 at gmail.com> wrote:
> On Sat, Mar 6, 2010 at 11:40 AM, Cédric Venet <cedric.venet at laposte.net> wrote:
>> So adding an option for adding this flag would be great but not changing the
>> default. (The flag is interesting because it can leads to great performance
>> improvement in STL heavy code (up to x10 and more on particular code)).
>
> I use this for every bit of my code:
>  /D_CRT_NONSTDC_NO_DEPRECATE /D_CRT_SECURE_NO_DEPRECATE
> /D_CRT_SECURE_NO_WARNINGS /D_SECURE_SCL=0 /D_SCL_SECURE_NO_DEPRECATE
> /D_HAS_ITERATOR_DEBUGGING=0
>
> In one particular class in one of my libraries, the speed difference
> is the difference of it running in about 10ms, compared to it running
> in about 12 minutes, and yes that is accurate.  That is a lot greater
> then just "10x".  Whoever was the retard at MS that decided to design
> such things, they deserve a quick kick to the privates...  I dealt
> with that for a freaking week...
>