[PATCH] D34038: Implement the non-parallel versions of exclusive_scan and transform_exclusive_scan

[Bryce Adelstein Lelbach via Phabricator via cfe-commits]

wash added a comment.

https://gist.github.com/brycelelbach/137f1e45b737d615134e228ec0c84f3a <- some crude tests I wrote based on slides/notes of mine.


https://reviews.llvm.org/D34038