[libcxx-commits] [clang] [libcxx] [clang] Add builtin to clear padding bytes (prework for P0528R3) (PR #75371)

[Nikolas Klauser via libcxx-commits]

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philnik777 wrote:

Why does this exist? We shouldn't test the compiler in the libc++ test suite.

https://github.com/llvm/llvm-project/pull/75371