Re: [OT] Disabling hardware speculation support in GCC flags

["Sujit Karataparambil" <sjt.kar@gmail.com>]

> You're right, I guess we can't disable the "hardware" directly but if
> we let gcc know about this then it is possible that it will do further
> optimizations correct?
What sort of run time issues can addressed on an runtime usage.

> For example, I can compile a C program using regular gcc without any
> options and then adding the following and comparing the differences:
>
> "-mcpu=7400 -O2 -pipe -maltivec -mabi=altivec"

These are stricly static rules.

>
> This way the compiler "knows" about the hardware and tries to optimize
> the program based on that.

How will you make an runtime sequence be made correclty to an compiler
>
> What do you think?

reminds me of hennesey and patternson chapter 03.

>
> Thanks,
> Amit
>
>
> --
> To UNSUBSCRIBE, email to debian-powerpc-REQUEST@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
>
>


-- 
--linux(2.4/2.6),bsd(4.5.x+),solaris(2.5+)