Re: Why does different types of array subscript used to iterate affect auto vectorization

[Alexander Monakov via Gcc-help <gcc-help@xxxxxxxxxxx>]

On Tue, 28 Jun 2022, Adonis Ling via Gcc-help wrote:

> For the secondary issue, could I explain that Clang chooses to ignore it?

That would be a compiler bug if it ignored that case; instead, it appears to
emit a test that the index would not wrap around, branching to a non-vectorized
variant if it would.

Alexander