On 01/08/2018 03:01 AM, Martin Liška wrote: > On 01/08/2018 01:29 AM, H.J. Lu wrote: >> 1. They need to be backportable to GCC 7/6/5/4.x. > > I must admit this is very important constrain. To be honest, we're planning > to backport the patchset to GCC 4.3. Red Hat would likely be backporting a ways as well. But I don't think doing this at expand rather than in the targets would affect backportability all that much, nor do I think that backporting to 10 year old compilers like SuSE and Red Hat do should drive the design decisions :-)
jeff
