[libcxx-commits] [libcxx] [libc++] Add an ABI flag to optimize mersenne_twister_engine (PR #206423)

[Louis Dionne via libcxx-commits]

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ldionne wrote:

We probably need `XFAIL: FIXME-FROZEN-CXX03 && libcpp-abi-mersenne-twister-whatever`.

https://github.com/llvm/llvm-project/pull/206423