Clang and call-clobbered location list entries

[Simon Marchi]

On 2019-10-17 09:25, David Stenberg wrote:
> Should I perhaps write a Bugzilla ticket to help keep track of this?

Yes, why not.  It's easier to find later than a discussion on the ML.

> Would it be fine to, at least as an initial step, introduce such
> knowledge for some, but not all, of an architecture's ABIs? For example
> only add register knowledge for the AMD64 System V ABI, but not for
> Windows?

Again, this is just my personal opinion, but I'd be fine with that.  
Note that if it requires to change some expectations in some tests, it 
means that we would need to expect different things for different 
architectures, so it will complexify a little bit those tests.

Simon