[llvm] [VPlan] Use VPWidenIntrinsicRecipe to support binary and unary operations with EVL-vectorization (PR #114205)

[via llvm-commits]

LiqinWeng wrote:

> Were you able to build llvm-test-suite/SPEC CPU 2017 for RISC-V with this patch? I'm aware that the VP codegen can hit some snags and isn't as well tested as the non-VP path, e.g. see #120405

I have a question, how do I add compile options? I try use the：-DCMAKE_CXX_FLAGS -DCMAKE_C_FLAGS -DTEST_SUITE_DIAGNOSE_FLAGS ， but always report warning： 
![image](https://github.com/user-attachments/assets/26271848-dcb8-4ca8-9ed9-2dc3d5f05942)


https://github.com/llvm/llvm-project/pull/114205