[PATCH] D17460: Add prefix based function layout when profile is available.

[David Li via llvm-commits]

davidxl accepted this revision.
davidxl added a comment.
This revision is now accepted and ready to land.

LGTM.

To repeat the follow ups needed:

1. tuning, performance number and turning on by default for PGO
2. support for other platforms (and consider user options if applicable).


http://reviews.llvm.org/D17460