I've submitted llvm bugzilla report 31538 on clang 3.9.1 not supporting the mfpmr and mtpmr instructions used in dev/hwpmc/hwpmc_e500.c

[Ed Maste]

On 4 January 2017 at 17:46, Mark Millard <markmi at dsl-only.net> wrote:
> I have submitted to llvm (matching up with FreeBSD bugzilla 214904):
>
> Bug 31538 - FreeBSD head (12) buildkernel based on clang FreeBSD's 3.9.1 stops for mfpmr and mtpmr instructions not being supported (used in dev/hwpmc/hwpmc_e500.c )

Thank you.

> This report likely should be added to the depends on list in:
>
> Bug 25780 - [META] Using Clang as the FreeBSD/ppc system compiler

Agreed, I've added it there. Please feel free to add other issues you
find as blocking 25780; my intent is to have it track all of the
outstanding issues preventing a Clang-based "make buildworld
buildkernel" from succeeding on any ppc / ppc64.