[PATCH] D158689: [llvm-profdata] Fix dangling reference after D147740

[William Junda Huang via Phabricator via llvm-commits]

huangjd added a comment.

In D158689#4615675 <https://reviews.llvm.org/D158689#4615675>, @davidxl wrote:

> What is the root cause of unordered_map being slower?

I think it is just the implementation in general, their algorithms are quite different.


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https://reviews.llvm.org/D158689