Re: [RFC] LKMM: Add volatile_if()

Rasmus Villemoes
2021-06-06T23:46:14Z

On 07/06/2021 01.39, Rasmus Villemoes wrote:

> memory". Replacing with a call to an extern function marked pure does
> indeed cause gcc to cache the value of y*z, so in theory this should be
> possible, if one could convince gcc to "trust me, this really is a pure
> function".

Don't know why I didn't think to check before sending, but FWIW clang
doesn't need convincing, it already takes the __pure at face value and
caches y*z.

Rasmus