https://reviews.llvm.org/D47381 / eb46c95c3e7aeba4d183ca614fe238067eddf97f changed the triples set up by GetHostTriple.cmake for i686 MSVC from i686-pc-win32 to i686-pc-windows-msvc without changing the corresponding condition in llvm-shlib. Since then, the 32 bit x86 build of LLVM-C.dll has contained no exported symbols at all. Differential Revision: https://reviews.llvm.org/D109493