15 class Truncation final {
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()
25   static Truncation Generalize(Truncation t1, Truncation t2) {  in Generalize()
26     return Truncation(Generalize(t1.kind(), t2.kind()));  in Generalize()
50   bool operator==(Truncation other) const { return kind() == other.kind(); }
51   bool operator!=(Truncation other) const { return !(*this == other); }
55   bool IsLessGeneralThan(Truncation other) {  in IsLessGeneralThan()
69   explicit Truncation(TruncationKind kind) : kind_(kind) {}  in Truncation()  function
121   UseInfo(MachineRepresentation representation, Truncation truncation,
130     return UseInfo(MachineRepresentation::kWord32, Truncation::Word32());  in TruncatingWord32()
133     return UseInfo(MachineRepresentation::kWord64, Truncation::Word64());  in TruncatingWord64()
136     return UseInfo(MachineRepresentation::kBit, Truncation::Bool());  in Bool()
139     return UseInfo(MachineRepresentation::kFloat32, Truncation::Any());  in Float32()
142     return UseInfo(MachineRepresentation::kFloat64, Truncation::Float64());  in TruncatingFloat64()
148     return UseInfo(MachineRepresentation::kTagged, Truncation::Any());  in AnyTagged()
151     return UseInfo(MachineRepresentation::kTaggedSigned, Truncation::Any());  in TaggedSigned()
154     return UseInfo(MachineRepresentation::kTaggedPointer, Truncation::Any());  in TaggedPointer()
159     return UseInfo(MachineRepresentation::kTaggedPointer, Truncation::Any(),  in CheckedHeapObjectAsTaggedPointer()
163     return UseInfo(MachineRepresentation::kTaggedSigned, Truncation::Any(),  in CheckedSignedSmallAsTaggedSigned()
169     return UseInfo(MachineRepresentation::kWord32, Truncation::Any(),
175     return UseInfo(MachineRepresentation::kWord32, Truncation::Any(),
179     return UseInfo(MachineRepresentation::kFloat64, Truncation::Float64(),  in CheckedNumberAsFloat64()
183     return UseInfo(MachineRepresentation::kWord32, Truncation::Word32(),  in CheckedNumberAsWord32()
187     return UseInfo(MachineRepresentation::kFloat64, Truncation::Any(),  in CheckedNumberOrOddballAsFloat64()
191     return UseInfo(MachineRepresentation::kWord32, Truncation::Word32(),  in CheckedNumberOrOddballAsWord32()
197     return UseInfo(MachineRepresentation::kNone, Truncation::Any());  in Any()
200     return UseInfo(MachineRepresentation::kNone, Truncation::Bool());  in AnyTruncatingToBool()
205     return UseInfo(MachineRepresentation::kNone, Truncation::None());  in None()
209   Truncation truncation() const { return truncation_; }  in truncation()
215   Truncation truncation_;
274                                    Type* output_type, Truncation truncation);
277                                     Type* output_type, Truncation truncation);