Building linux kernel with clang

Hi, I tried to build linux-5.0 with clang-7.0.0, but came out error: Compiler lacks asm-goto support.
I googled for this problem, and says this asm-goto support for clang is already merged.
So could you please send me the download site, since I didn’t find this version on the official website.

Only half of the patches for asm-goto has been merged. The backend optimizer support is in, but not the frontend. As the article said “while patches are pending against Clang to add the necessary bits to the C/C++ compiler front-end.”

The clang patch is being code reviewed here We hope to get it merged within the next couple weeks.