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50f4b71699a116d95b72e8cc4c0a98433fac51a0 by Evan Brown <ezb@google.com>:

Split reset_ctrl and set_ctrl out of raw_hash_set to avoid redundant memory accesses.

In the previous member functions, the compiler has to assume that `ctrl_` can alias `this` so it has to reload the other member variables unnecessarily.

Note: I tried adding __restrict__ to the ctrl arguments in the new functions, but it didn't result in further binary changes.
PiperOrigin-RevId: 386074009

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47dfd737cc484492f9af9452e3a49adf81fe2ad2 by Abseil Team <absl-team@google.com>:

rehash_and_grow_if_necessary in-place more aggressively.

It previously resized too eagerly, resulting in low load factors.

PiperOrigin-RevId: 386008094

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05321b4841ffe685813897a1ec86abc8fdf54093 by Derek Mauro <dmauro@google.com>:

Internal change

PiperOrigin-RevId: 385810140
GitOrigin-RevId: 50f4b71699a116d95b72e8cc4c0a98433fac51a0
Change-Id: I9c9571564adc1f9ccfa9b29d3aac238389397d1b