From: Richard Henderson <rth@twiddle.net>
To: "Alex Bennée" <alex.bennee@linaro.org>, richard.henderson@linaro.org
Cc: qemu-devel@nongnu.org, qemu-arm@nongnu.org,
Claudio Fontana <claudio.fontana@huawei.com>
Subject: Re: [Qemu-devel] [PATCH] tcg/aarch64: limit mul_vec size
Date: Thu, 19 Jul 2018 09:16:40 -0700 [thread overview]
Message-ID: <9d98177c-4bf1-1e2d-a2bb-b5c907e76705@twiddle.net> (raw)
In-Reply-To: <20180719154248.29669-1-alex.bennee@linaro.org>
On 07/19/2018 08:42 AM, Alex Bennée wrote:
> In AdvSIMD we can only do 32x32 integer multiples although SVE is
> capable of larger 64 bit multiples. As a result we can end up
> generating invalid opcodes. Fix this by only reprting we can emit mul
> vector ops if the size is small enough.
>
> Fixes a crash on:
>
> sve-all-short-v8.3+sve@vq3/insn_mul_z_zi___INC.risu.bin
>
> When running on AArch64 hardware.
>
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> ---
> tcg/aarch64/tcg-target.inc.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
Queued. Thanks,
r~
prev parent reply other threads:[~2018-07-19 16:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-19 15:42 [Qemu-devel] [PATCH] tcg/aarch64: limit mul_vec size Alex Bennée
2018-07-19 16:16 ` Richard Henderson [this message]
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