> This isn't technically a regression, but the bug would be subtle enough, and
> hard enough to debug that I think we should fix it for GCC 7.
>
> OK for trunk, where else does this need backported to?
>
I think it might be worthwhile to backport to GCC 6 as well.
Tamar
> Thanks,
> James
>
>
On Wed, Mar 15, 2017 at 04:09:05PM +, Tamar Christina wrote:
> This patch fixes a bug in the SIMD mov pattern where we were doing an
> insert and leaving the rest of the vector in an undetermined state. This
> could cause a bug if something else expects the other lanes to be 0.
>
> Semantically
