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From: Alexander Monakov <>
To: Adonis Ling <>
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: <> (raw)
In-Reply-To: <>

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.


  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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