[llvm] [LV] Add VPWiden{Load|Store}EVLRecipe into emitInvalidCostRemarks(). (PR #119708)

[Elvis Wang via llvm-commits]

ElvisWang123 wrote:

> Tests?

It hard to find a test case that using VPWidenLoadEVL and the cost is invalid.  Something I can imagine is that gather/scatter under `--triple riscv64 -mattr=+v` will return invalid cost. However, this pattern will not be vectorized in the upstream compiler.


https://github.com/llvm/llvm-project/pull/119708