[libcxx-commits] [libcxx] [libc++] Don't instantiate __split_buffer with an allocator reference (PR #171651)

[Louis Dionne via libcxx-commits]

ldionne wrote:

> @junov-google Are you able to verify whether this indeed fixes your issue with Swift interop?

Actually, I was able to reproduce your issue myself and I can confirm it solves it! Note that I had to remove `-explicit-module-build` from the build flags in your repro in https://github.com/swiftlang/swift/issues/85820 to make anything work, I'm not sure why. But after I remove that, I can reproduce the same issue you saw and this patch does fix it.

https://github.com/llvm/llvm-project/pull/171651