Re: [ros-dev] [ros-diffs] [dgorbachev] 53907: [NTOSKRNL] Use inline asm in KiIsNpxErrataPresent(). C code can be optimized in a wrong way.

[Alex Ionescu]

Those three intrinsics should be barriers -- why is it moving the math
outside?

If -Ofast is a problem, that function simply needs a pragma to disable
optimization.

Best regards,
Alex Ionescu


On Sat, Oct 1, 2011 at 12:38 PM, Dmitry Gorbachev
<d.g.gorbachev(a)gmail.com>wrote;wrote:

>   1) Math can be moved outside
> _disable/_enable/__writecr0. It can be
>  fixed by making other local vars volatile.
>