llvm-project

e0537c07 - [LV][EVL] Attach a new metadata on EVL vectorized loops (#131000)

[LV][EVL] Attach a new metadata on EVL vectorized loops (#131000) This patch attaches a new metadata, `llvm.loop.isvectorized.withevl`, on loops vectorized with explicit vector length. This will help other optimizations down in the pipeline that focus on EVL-vectorized loop This approach is much safer than, said IR pattern matching to figure out if a loop is EVL-vectorized or not.