[llvm-dev] Review wanted - contribution for legacy pass manager (machine pass extensions)

[Raoul Gough via llvm-dev]

Hello llvm-dev, I have a code contribution for the legacy pass manager 
and I'm having trouble finding anyone to finish reviewing it. I've made 
some improvements based on earlier feedback from @ychen on Phabricator 
but since then nobody has given final approval. Can anyone help with 
this or point me in the right direction?

I couldn't see anyone listed in the CODE_OWNERS.txt for this area of the 
code base. From what I understand the new pass manager still doesn't 
handle the target-specific code, so I think the code is in the right 
place for now at least. I'd be happy to move it to the new pass manager 
if that's currently possible, of course.

This is related to my (out of tree) runtime inlining project and adds 
minimal support for target-level extensions in a similar way to 
addGlobalExtension in the legacy IR PassManagerBuilder... 
https://reviews.llvm.org/D98591

Regards,
Raoul Gough.