[PATCH] D152490: [llvm-profdata] Use StringRef for CallTargetMap

[William Junda Huang via Phabricator via llvm-commits]

huangjd added a comment.

Holding on to this patch. Currently I am also exploring writing a specialized container for all the map types used by SampleProfile, given the fact that in production profiles maps typically have 0 or 1 elements (~90%), and map allocation is a huge bottleneck (~25% full profile load time), having a specialized map structure is beneficial


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  https://reviews.llvm.org/D152490/new/

https://reviews.llvm.org/D152490