https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50928
camden lindsay <camden.lindsay at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |camden.lindsay at gmail dot com --- Comment #6 from camden lindsay <camden.lindsay at gmail dot com> --- Hello- I ran into the same error message as below while compiling for m32c ('error: unable to find a register to spill in class 'A_REGS'') I applied the patches provided in Comment 5 Now the build succeeds. Cannot test code coming out of the build, though. newlib-2.2.0 binutils-2.25 gcc-4.9.2