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

[Mark Santaniello via Phabricator via llvm-commits]

marksantaniello added a comment.

Yeah I tested pretty much the same thing, and it was a big memory regression.  The problem is that, upon first insert, the DenseMap grows to 64 entries.  Even if I use a const char* key, the KV-pair is 16B, so 64 entries is 1K.


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