This was introduced by: https://sourceware.org/ml/gdb-patches/2014-04/msg00259.html All the gdb testsuite fails when testing with the n32 ABI on MIPS64 with the following internal compiler error: /home/jenkins/workspace/BuildToolchainMIPS_bm/toolchain/scripts/../src/gdb/findvar.c:773: internal-error: address_from_register: Assertion `!gdbarch_convert_register_p (gdbarch, regnum, type)' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Create a core file of GDB? (y or n) n
Fixed.