On 08/18/2014 05:24 AM, Kyrill Tkachov wrote: > -(define_insn "*csinc2<mode>_insn" > +(define_insn "*csinc2<mode>_<CC_ZERO:mode>_insn" > [(set (match_operand:GPI 0 "register_operand" "=r") > (plus:GPI (match_operator:GPI 2 "aarch64_comparison_operator" > - [(match_operand:CC 3 "cc_register" "") (const_int 0)]) > + [(match_operand:CC_ZERO 3 "cc_register" "") (const_int 0)])
Rather than create 3 patterns that only vary in this mode, it would be better to use (match_operand 3 "cc_register_zero"). Where the predicate is defined with define_special_predicate so that you move the mode check inside the predicate. r~
