LLVM runs out of memory while compiling userland for 7.8 -Stable on a T2000

Hello everyone!

I have a Sunfire T2000 UltraSparc T1 with 32GB RAM, no further ldoms configured.

I just updated /usr/src and /usr/xenocara via CVS to the -rOPENBSD_7_8
branch and tried to compile kernel + Userland. The kernel compiled, but compiling the
userland aborts with the following message:

[...]
LLVM ERROR: out of memory
Allocation failed
Signal 6 in target 'AMDGPUGenRegisterInfo.inc'
Signal SIGABRT in gnu/usr.bin/clang/include/llvm/AMDGPU [...]
Error 2 in gnu/usr.bin/clang (<bsd.subdir.mk>:48 'all')
[...]

Besides a faulty memory module (you see that the box has plenty of RAM), what could be
causing this?

BR.-