__THUNK_PROLOG_BR 34 arch/s390/include/asm/nospec-insn.h .macro __THUNK_PROLOG_BR r1,r2 __THUNK_PROLOG_BR 142 arch/s390/include/asm/nospec-insn.h __DECODE_RR __THUNK_PROLOG_BR,\reg,\ruse