[llvm] [SLP] Vectorize struct-returning intrinsics (PR #195521)

[Kewen Meng via llvm-commits]

Kewen12 wrote:

Hello! This PR breaks OpenMP build in our bot. Could you please fix it? Thanks!

bot: https://lab.llvm.org/buildbot/#/builders/10/builds/28192

https://github.com/llvm/llvm-project/pull/195521