[llvm-branch-commits] [llvm] [LV][REVEC] Initial support for re-vectorisation (PR #208213)

[Gaëtan Bossu via llvm-branch-commits]

gbossu wrote:

> It would be better if could also support fixed vector, which is very useful for x86.

FYI I'm not opposed to allowing re-vectorisation to wider fixed vectors, I'd just like to limit the scope of this first PR to scalable VFs as this keeps the code changes small. (fixed VFs allow more recipes, which would need updating for REVEC)

https://github.com/llvm/llvm-project/pull/208213