[PATCH] D41695: [Metadata] Extend 'count' field of DISubrange to take a metadata node

[Reid Kleckner via Phabricator via llvm-commits]

rnk added a comment.

I'm concerned this will blow up memory usage of commonly encountered array types. @dexonsmith, IIRC your preferred metric for this was the private memory usage high watermark of an LTO build of clang with debug info. Do we think that's still a good proxy for a before/after comparison?


https://reviews.llvm.org/D41695