[clang] [llvm] [SROA] Canonicalize homogeneous structs into fixed vectors (PR #165159)

[Yonah Goldberg via cfe-commits]

YonahGoldberg wrote:

Sounds good, let me know when you put the simpler heuristic and please run llvm-opt-benchmark up here so I can take a look at those regressions you're talking about. I don't have experience with SLP so I can't review that change.

What do you think of my change here: https://github.com/llvm/llvm-project/pull/194042#discussion_r3155783298

I think you might run into this issue with the simpler heuristic. Technically the transformation is not legal though...

https://github.com/llvm/llvm-project/pull/165159