18   static Truncation None() { return Truncation(TruncationKind::kNone); }  in None()
19   static Truncation Bool() { return Truncation(TruncationKind::kBool); }  in Bool()
20   static Truncation Word32() { return Truncation(TruncationKind::kWord32); }  in Word32()
21   static Truncation Word64() { return Truncation(TruncationKind::kWord64); }  in Word64()
22   static Truncation Float64() { return Truncation(TruncationKind::kFloat64); }  in Float64()
23   static Truncation Any() { return Truncation(TruncationKind::kAny); }  in Any()
30   bool IsUnused() const { return kind_ == TruncationKind::kNone; }  in IsUnused()
32     return LessGeneral(kind_, TruncationKind::kBool);  in IsUsedAsBool()
35     return LessGeneral(kind_, TruncationKind::kWord32);  in IsUsedAsWord32()
38     return LessGeneral(kind_, TruncationKind::kFloat64);  in IsUsedAsFloat64()
41     return LessGeneral(kind_, TruncationKind::kWord32) ||  in IdentifiesNaNAndZero()
42            LessGeneral(kind_, TruncationKind::kBool);  in IdentifiesNaNAndZero()
45     return LessGeneral(kind_, TruncationKind::kFloat64) ||  in IdentifiesUndefinedAndNaNAndZero()
46            LessGeneral(kind_, TruncationKind::kWord64);  in IdentifiesUndefinedAndNaNAndZero()
60   enum class TruncationKind : uint8_t {  enum
69   explicit Truncation(TruncationKind kind) : kind_(kind) {}  in Truncation()
70   TruncationKind kind() const { return kind_; }  in kind()
72   TruncationKind kind_;
74   static TruncationKind Generalize(TruncationKind rep1, TruncationKind rep2);
75   static bool LessGeneral(TruncationKind rep1, TruncationKind rep2);