[llvm-branch-commits] [libcxx] [libcxxabi] [llvm] release/21.x: [libc++][hardening] Introduce assertion semantics. (#149459) (PR #151095)

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llvmbot wrote:

@var-const What do you think about merging this PR to the release branch?

https://github.com/llvm/llvm-project/pull/151095