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Re: [PATCH for-6.2 07/53] target/arm: Fix MVE 48-bit SQRSHRL for small r


From: Peter Maydell
Subject: Re: [PATCH for-6.2 07/53] target/arm: Fix MVE 48-bit SQRSHRL for small right shifts
Date: Thu, 12 Aug 2021 10:43:09 +0100

On Fri, 30 Jul 2021 at 20:07, Richard Henderson
<richard.henderson@linaro.org> wrote:
> I'll note two things:
>
> (1) The val == extval check could be sunk to the end of the function and 
> shared with the
> left shift,
>
> (2) sat will never be unset, as #48 is encoded as sat=1 in the insn.

True; I'm kind of aiming for parity with the other sqrshl utility routines,
which is why the unused no-saturation code is in there.

-- PMM



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