Re: [Qemu-devel] [PULL 16/20] target/arm: Use vector infrastructure for aa64 compares

[Emilio G. Cota]

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.

To reproduce:
1. grab this binary:
  http://cs.columbia.edu/~cota/qemu/nbench-aarch64
2. run it on a PowerPC host with:
  $ aarch64-linux-user/qemu-aarch64 nbench-aarch64 -V

Note: the "-V" (or "-v") flag is important! Without it, there's no segfault.

I can reproduce this consistently on a Power8 host -- I'm using gcc112
from the gcc compile farm.

Thanks,

                Emilio