Building with the attached random configuration file,

arch/x86/crypto/aesni-intel_avx.S: Assembler messages:
arch/x86/crypto/aesni-intel_avx.S:1449: Error: bad register name `%r12'
[...]
arch/x86/crypto/aesni-intel_avx.S:2807: Error: bad register name `%r12'
make[2]: *** [arch/x86/crypto/aesni-intel_avx.o] Error 1