[llvm] [CVP][LVI] Add support for InsertElementInst in LVI (PR #99368)

[Nikita Popov via llvm-commits]

nikic wrote:

Reduced test case:
```
@g = external global i32

define <2 x i16> @test() {
  %ins = insertelement <2 x i16> poison, i16 ptrtoint (ptr @g to i16), i32 0
  ret <2 x i16> %ins
}
```

https://github.com/llvm/llvm-project/pull/99368