llvm-project

c103bbc8 - [LV] Consider whether vscale is a known power of two for iteration check (#144963)

[LV] Consider whether vscale is a known power of two for iteration check (#144963) Going mostly by the comment here - but it says "vscale is not necessarily a power-of-2". Both in tree targets have vscale as a power of two, and we have an existing TTI hook for that.