[PATCH] D31225: Use isFunctionHotInCallGraph to set the function section prefix.

[Dehao Chen via Phabricator via llvm-commits]

danielcdh added a comment.

Updated the patch to change for the cold prefix tool.

In terms of performance, it will only affect ITLB performance on very large applications. For the perf test I've done, it shows improved ITLB and heatmap, but no visible performance difference is observed.


https://reviews.llvm.org/D31225