On 07/21/2010 07:37 AM, Jakub Jelinek wrote: > +#ifdef ENABLE_CHECKING > + gcc_assert (GET_CODE (set0) == SET > + && GET_CODE (SET_SRC (set0)) == ASM_OPERANDS > + && ASM_OPERANDS_OUTPUT_IDX (SET_SRC (set0)) == 0); > +#endif gcc_checking_assert for mainline. Otherwise ok everywhere. r~