From: Alexey Dobriyan <adobriyan@gmail.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
hpa@zytor.com, x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86: drop REG_OUT macro from hweight functions
Date: Mon, 29 Jul 2019 23:44:17 +0300 [thread overview]
Message-ID: <20190729204417.GA2146@avx2> (raw)
In-Reply-To: <20190729100447.GD31425@hirez.programming.kicks-ass.net>
On Mon, Jul 29, 2019 at 12:04:47PM +0200, Peter Zijlstra wrote:
> +#define _ASM_ARG1B __ASM_FORM_RAW(dil)
> +#define _ASM_ARG2B __ASM_FORM_RAW(sil)
> +#define _ASM_ARG3B __ASM_FORM_RAW(dl)
> +#define _ASM_ARG4B __ASM_FORM_RAW(cl)
> +#define _ASM_ARG5B __ASM_FORM_RAW(r8b)
> +#define _ASM_ARG6B __ASM_FORM_RAW(r9b)
I preprocessed percpu code once to see what precisely it does because
it was easier than wading through forest of macroes.
Hopefully x86 assembly won't get to that level.
next prev parent reply other threads:[~2019-07-29 20:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-28 11:51 [PATCH] x86: drop REG_OUT macro from hweight functions Alexey Dobriyan
2019-07-29 9:43 ` Peter Zijlstra
2019-07-29 10:04 ` Peter Zijlstra
2019-07-29 20:44 ` Alexey Dobriyan [this message]
2019-07-30 8:08 ` Peter Zijlstra
2019-07-30 13:42 ` hpa
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