[PATCH] D58064: [ThinLTO] Record in index whether IR used a flattened sample PGO profile

[Wei Mi via Phabricator via llvm-commits]

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

LGTM.



================
Comment at: lib/ProfileData/SampleProf.cpp:28
 
+cl::opt<bool> FlattenedProfileUsed(
+    "flattened-profile-used", cl::init(false), cl::Hidden,
----------------
tejohnson wrote:
> @wmi Would it be possible to record this information in the sample profile file itself? That would be cleaner.
That is a possiblity. But have to consider what is the best way to category the information we want to encode. 


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https://reviews.llvm.org/D58064