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Re: [Qemu-devel] ARM: SVE while issue
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From: |
Richard Henderson |
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Subject: |
Re: [Qemu-devel] ARM: SVE while issue |
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Date: |
Tue, 31 Jul 2018 12:36:29 -0400 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 |
On 07/31/2018 09:52 AM, Laurent Desnogues wrote:
> Hello Richard,
>
> according to SVE specification, whilels/whilele instructions have a
> special case where if the second operand is the maximum (un)signed
> integer then the result is an all-true predicate. The current code in
> trans_WHILE doesn't seem to capture that requirement. I'm afraid the
> fix won't be as trivial as for the other two bugs I reported :-)
Still not too bad.
Testing a fix for my branch now.
Annoying that risu didn't randomly generate this case,
and I totally mis-read the documentation for this.
r~