[libc-commits] [libc] [libc]: Add -Wextra for libc tests (PR #133643)

[Nick Desaulniers via libc-commits]

nickdesaulniers wrote:

Looks like LlvmLibcMemcmpTest.SizeSweep is generating an illegal instruction, somehow.  Perhaps you can run the test under lldb, and it can give you a backtrace of where the exeception is coming from.  Build a debug build.

https://github.com/llvm/llvm-project/pull/133643