[SingleSource/Vectorizer] Add unit tests for AnyOf pattern.

[Mel-Chen]

This patch adds runtime test case for vectorization of AnyOf reduction idiom:

int32_t Rdx = -1;
for (unsigned I = 0; I < TC; I++) {
  Rdx = A[I] > B[I] ? 3 : Rdx;
}
return Rdx;

Improving test coverage, and please refer the issue llvm/llvm-project#120405.

[fhahn]

It would probably be good to also check with a smaller type (int8_t or int16_t ?) to trigger epilogue vectorization on more platforms?

[Mel-Chen]

37b1efc
Yes, I patched it, but only for IAnyOf.
Checking FAnyOf will require an fp type with a smaller size than float to be possible.