[PATCH] D54175: [PGO] context sensitive PGO

[Vedant Kumar via Phabricator via llvm-commits]

vsk added subscribers: tmsriram, tejohnson, rnk.
vsk added a comment.

Hi Rong, at a high-level, I like what this patch is doing. I'll try to leave in-depth comments by next week -- please ping the review otherwise.

> These suboptimal profile can greatly affect some downstream optimizations, in particular for machine basic block placement optimization.

If it's possible to get these numbers, it'd be interesting to know how the improvements from this patch compare to link-time or post-link block ordering tools (Bolt).


https://reviews.llvm.org/D54175