absl/strings · 68be7315913c8ef8a791a0fb60d98e98787d88b6 · open / abseil-cpp

Optimize absl::StrCat for integers · 15d26cdd

Previous implementation used a lookup table of 200 bytes which, if not in L1 cache, could cause memory stalls and consumes 3-4 cache lines. This is suboptimal in real world scenarious. We are going to use a purely scalar version of merging 2/4/8 bytes together.

PiperOrigin-RevId: 533576619
Change-Id: Icd730d18536f7eb35979b62582f6edf86b786019

committed May 19, 2023

15d26cdd

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