From: Richard Henderson <richard.henderson@linaro.org>
To: David Miller <dmiller423@gmail.com>,
qemu-s390x@nongnu.org, qemu-devel@nongnu.org
Cc: thuth@redhat.com, david@redhat.com, cohuck@redhat.com,
farman@linux.ibm.com, pasic@linux.ibm.com,
borntraeger@linux.ibm.com
Subject: Re: [PATCH v2] tests/tcg/s390x: Cleanup of mie3 tests.
Date: Tue, 1 Mar 2022 10:15:42 -1000 [thread overview]
Message-ID: <234dc90d-7e7a-8281-d0db-14c8c4c6efea@linaro.org> (raw)
In-Reply-To: <20220301195933.1500-1-dmiller423@gmail.com>
On 3/1/22 09:59, David Miller wrote:
> +{ \
> + uint64_t res = 0; \
> +asm volatile ( \
> + "lg %%r0, %[c]\n" \
> + "ltgr %%r0, %%r0\n" \
> + ASM \
> + "stg %%r0, %[res] " \
> + : [res] "=m" (res) \
> + : [a] "r" (a), \
> + [b] "r" (b), \
> + [c] "m" (c) \
> + : "r0", "memory" \
> +); \
I don't understand why you're still going through memory.
r~
next prev parent reply other threads:[~2022-03-01 20:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-01 19:59 [PATCH v2] tests/tcg/s390x: Cleanup of mie3 tests David Miller
2022-03-01 20:15 ` Richard Henderson [this message]
2022-03-01 20:21 ` David Miller
2022-03-01 20:22 ` David Miller
2022-03-01 21:18 ` Richard Henderson
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