[8.x] Optimize CachedSupplier a little (#119563) #119878
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This thing shows up a lot in profiling many-shards searches and fields caps. This is mainly due to expensive `initResult` but we can at least get a little better cache behavior here on some architectures by saving one volatile read.
original-brownbear
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:Core/Infra/Core
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Backports the following commits to 8.x: