[flang-commits] [clang] [flang] [mlir] [flang] Add support for -mprefer-vector-width=<value> (PR #141380)

[Cameron McInally via flang-commits]

mcinally wrote:

This is my first patch to Flang, so please be suspicious and gentle.

In particular, I am not sure if `FlangOption, FC1Option` were the correct phases to pass this option to or not.

https://github.com/llvm/llvm-project/pull/141380