}
	f.ruleMatches[key]++
	return true
}

// warnRule generates compiler debug output with string s when
// v is not in autogenerated code, cond is true and the rule has fired.
func warnRule(cond bool, v *Value, s string) bool {
	if pos := v.Pos; pos.Line() > 1 && cond {
		v.Block.Func.Warnl(pos, s)
	}
	return true
}

// for a pseudo-op like (LessThan x), extract x.
func flagArg(v *Value) *Value {

(If (FLessThan cc) yes no) => (FLT cc yes no)
(If (FLessEqual cc) yes no) => (FLE cc yes no)
(If (FGreaterThan cc) yes no) => (FGT cc yes no)
(If (FGreaterEqual cc) yes no) => (FGE cc yes no)

(If cond yes no) => (NE (CMPconst [0] (ANDconst [1] cond)) yes no)

// Absorb boolean tests into block
(NE (CMPconst [0] (ANDconst [1] ((Equal|NotEqual|LessThan|LessEqual|GreaterThan|GreaterEqual) cc))) yes no) => ((EQ|NE|LT|LE|GT|GE) cc yes no)

}

func ParseSuffix(prog *obj.Prog, cond string) (err error) {
	switch prog.As {
	case AFCVTWS, AFCVTLS, AFCVTWUS, AFCVTLUS, AFCVTWD, AFCVTLD, AFCVTWUD, AFCVTLUD:
		prog.Scond, err = rmSuffixEncode(strings.TrimPrefix(cond, "."))
	}
	return
}

var LinkRISCV64 = obj.LinkArch{
	Arch:           sys.ArchRISCV64,