[libc++] Specialize allocator_traits for std::allocator #160278

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philnik777 wants to merge 1 commit into llvm:main from philnik777:specialize_allocator_traits

+74 −0

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philnik777 commented Sep 23, 2025

This reduces the time to instantiate allocator_traits<allocator<T>> from ~0.7ms to ~0.07ms, or reduces the time to instantiate vector<T> by ~28%.


          [libc++] Specialize allocator_traits for std::allocator

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