AAAA-I

Missed optimization: InstCombine is blocked by other uses

3

The following reduced IR is derived from https://github.com/Kitware/CMake/blob/bbaa25bca7ef2a969c034a0c3c5cd47a6037b56f/Utilities/cmcurl/lib/ftp.c#L1386 Godbolt: https://godbolt.org/z/1ojq9Ynd4 alive2 proof: https://alive2.llvm.org/ce/z/VWCrxT missed optimization: `tail call void @use(i64 %3)` --> `tail call void @use(i64 0)` InstCombine can optimize as...