Hello! > While I'm here, in i386.md some of the flag setting operations specify a mode > and some don't . Eg > > (define_expand "cmp<mode>_1" > [(set (reg:CC FLAGS_REG) > (compare:CC (match_operand:SWI48 0 "nonimmediate_operand") > > > (define_insn "*add<mode>_3" > [(set (reg FLAGS_REG) > (compare
The mode of the mode-less FLAGS_REG is checked with ix86_match_ccmode in the insn constraint. Several modes are compatible with required mode, also depending on input operands. Uros.
