Phoronix posted a story that AMD is are already working on compiler support for their third-generation Bulldozer

Second-generation Bulldozer processors only started appearing recently in the form of the Trinity APUs with Piledriver cores. The next Bulldozer-2 wave will come when AMD releases their Piledriver-bearing "Vishera" FX-Series desktop processors. While this hardware has yet to publicly arrive, AMD is are already working on compiler support for their third-generation Bulldozer -- a.k.a. "Steamroller" -- micro-architecture.

As first spotted via my Anzwix system, Ganesh Gopalasubramanian of AMD published the first patch work concerning "bdver3" enablement to gcc-patches on Thursday morning. "The attached patch (Patch.txt) enables the next version of AMD's bulldozer core. A new file (bdver3.md) is also attached which describes the pipelines."

As with previous generations, this compiler tuning/optimization support for next year's AMD hardware is being called "bdver3" in a similar naming convention to the original Bulldozer CPUs ("bdver1") and the new Piledriver / Bulldozer 2 support ("bdver3"). The bdver3 GCC patch in its early form copies most of the tuning work from bdver2 but the pipelines have already been modelled after the new Steamroller core.

  AMD Drops Steamroller "bdver3" Compiler Support