llvm-project

6d516c6e - [llvm][RISCV] Do not assume V extension on seeing vector type. (#166994)

[llvm][RISCV] Do not assume V extension on seeing vector type. (#166994) We have a private extension which also uses the vector type in the frontend. Our platform does not have the V extension, so it triggered assertion failures from within getLMULCost(). It feels reasonable to check for V extension before assuming LMUL exists.