[llvm] [VP] Check if VP ops with functional intrinsics are speculatable (PR #69504)

[Luke Lau via llvm-commits]

lukel97 wrote:

Ping. Looks like the test was intentionally handwritten, with the agreement to convert it to UTC once caching had been implemented: https://reviews.llvm.org/D78203#inline-949565

https://github.com/llvm/llvm-project/pull/69504