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Re: [Qemu-devel] [PULL 16/20] target/arm: Use vector infrastructure for
From: |
Emilio G. Cota |
Subject: |
Re: [Qemu-devel] [PULL 16/20] target/arm: Use vector infrastructure for aa64 compares |
Date: |
Wed, 4 Apr 2018 17:39:38 -0400 |
User-agent: |
Mutt/1.5.24 (2015-08-30) |
On Wed, Apr 04, 2018 at 19:24:52 +0100, Alex Bennée wrote:
>
> Emilio G. Cota <address@hidden> writes:
>
> > On Wed, Feb 07, 2018 at 14:55:36 -0800, Richard Henderson wrote:
> >> Reviewed-by: Alex Bennée <address@hidden>
> >> Reviewed-by: Peter Maydell <address@hidden>
> >> Signed-off-by: Richard Henderson <address@hidden>
> >
> > Just bisected a segfault for aarch64 nbench on a PowerPC host
> > to this commit (79d61de6bdc398). I've also tested on x86_64 and
> > aarch64 hosts, and these do not seem to be affected.
>
> I wonder about other hosts without TCG_vec backend support (powerpc is
> one)? I suspect it must be the fall-back for the vector expanders is
> wrong.
I just tried on two additional machines:
- Reproduced on a different PowerPC host with different endianness
(gcc110, which is power7 and therefore big endian)
- Could not reproduce on a mips64 host (gcc23)
So it might be a Power-only thing.
Thanks,
Emilio