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Re: [PATCH for-6.2 03/53] target/arm: Fix MVE VSLI by 0 and VSRI by <dt>


From: Richard Henderson
Subject: Re: [PATCH for-6.2 03/53] target/arm: Fix MVE VSLI by 0 and VSRI by <dt>
Date: Fri, 30 Jul 2021 08:56:03 -1000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0

On 7/29/21 1:14 AM, Peter Maydell wrote:
In the MVE shift-and-insert insns, we special case VSLI by 0
and VSRI by <dt>. VSRI by <dt> means "don't update the destination",
which is what we've implemented. However VSLI by 0 is "set
destination to the input", so we don't want to use the same
special-casing that we do for VSRI by <dt>.

Since the generic logic gives the right answer for a shift
by 0, just use that.

Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
---
  target/arm/mve_helper.c | 9 +++++----
  1 file changed, 5 insertions(+), 4 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~



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