[llvm] [VP][RISCV] Add vp.cttz.elts intrinsic and its RISC-V codegen (PR #90502)

[Min-Yih Hsu via llvm-commits]

mshockwave wrote:

> This broke the bot: https://lab.llvm.org/buildbot/#/builders/272 ; is there already a fix or should we revert here?

I has been fixed in https://github.com/llvm/llvm-project/commit/6ab49fcbb237779042bfb7f5210321fe75f8f432

https://github.com/llvm/llvm-project/pull/90502