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
Date: Tue, 28 Jun 2022 18:56:47 +0300 (MSK) [thread overview]
Message-ID: <f93aa7b-c15a-4c8d-17ea-8e7910a5f48f@ispras.ru> (raw)
In-Reply-To: <CAG5qfXjCHGV1RraJDXCHmwqJhZQ82iL3Qmwpf-Aj8xbF=M2mDw@mail.gmail.com>
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
next prev parent reply other threads:[~2022-06-28 15:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-27 2:47 Adonis Ling
2022-06-28 13:06 ` Alexander Monakov
2022-06-28 15:23 ` Adonis Ling
2022-06-28 15:38 ` Alexander Monakov
2022-06-28 15:47 ` Adonis Ling
2022-06-28 15:56 ` Alexander Monakov [this message]
2022-06-28 16:00 ` Adonis Ling
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