From: Mark Brown <broonie@kernel.org>
To: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Shuah Khan <shuah@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-kselftest@vger.kernel.org
Subject: Re: [PATCH v1] kselftest/arm64: Use preferred form for predicate load/stores
Date: Thu, 17 Nov 2022 12:52:46 +0000 [thread overview]
Message-ID: <Y3YuniIBdSa02hUr@sirena.org.uk> (raw)
In-Reply-To: <Y3YgdloFYx3pQUO0@FVFF77S0Q05N>
[-- Attachment #1.1: Type: text/plain, Size: 567 bytes --]
On Thu, Nov 17, 2022 at 11:52:22AM +0000, Mark Rutland wrote:
> On Thu, Nov 17, 2022 at 11:41:30AM +0000, Mark Brown wrote:
> > The preferred form of the str/ldr for predicate registers with an immediate
> > of zero is to omit the zero, and the clang built in assembler rejects the
> > zero immediate. Drop the immediate.
> Rejecting that outright seems like a bug in clang, given there are legitimate
> reasons to write code that way (e.g. using asm-offsets style definitions); has
> that been reported so that it can be fixed?
I believe it's been reported, yes.
[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 176 bytes --]
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-11-17 12:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-17 11:41 [PATCH v1] kselftest/arm64: Use preferred form for predicate load/stores Mark Brown
2022-11-17 11:52 ` Mark Rutland
2022-11-17 12:52 ` Mark Brown [this message]
2022-11-18 19:40 ` Will Deacon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=Y3YuniIBdSa02hUr@sirena.org.uk \
--to=broonie@kernel.org \
--cc=catalin.marinas@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=shuah@kernel.org \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox