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Date: Tue, 28 Jun 2022 18:56:47 +0300 (MSK)
From: Alexander Monakov <amonakov@ispras.ru>
To: Adonis Ling <adonis0147@gmail.com>
cc: gcc-help@gcc.gnu.org
Subject: Re: Why does different types of array subscript used to iterate
 affect auto vectorization
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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