[PATCH] D79297: [COFF] Avoid allocating temporary vectors during ICF

[Reid Kleckner via Phabricator via llvm-commits]

rnk added a comment.

> Heap profiling with ETW shows that LLD allocates 4,053,721 bytes of heap
>  memory over its lifetime, and ~800,000 of them come from assocEquals.

I misspoke here, I didn't understand the WPA heap profiler API. These numbers are for individual allocations.

I wasn't able to measure much speed improvement, but it makes LLD faster under the heap profiler. :) Fewer heap allocation stack traces for it to process.


Repository:
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https://reviews.llvm.org/D79297