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[sil] Define ValueOwnershipKind::isCompatibleWith(SILValue v). #33293

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Aug 8, 2020
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[sil] Define ValueOwnershipKind::isCompatibleWith(SILValue v). #33293

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11 changes: 11 additions & 0 deletions include/swift/SIL/SILValue.h
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,7 @@ class SILLocation;
class DeadEndBlocks;
class ValueBaseUseIterator;
class ValueUseIterator;
class SILValue;

/// An enumeration which contains values for all the concrete ValueBase
/// subclasses.
Expand Down Expand Up @@ -188,6 +189,12 @@ struct ValueOwnershipKind {
return merge(other).hasValue();
}

/// Returns isCompatibleWith(other.getOwnershipKind()).
///
/// Definition is inline after SILValue is defined to work around circular
/// dependencies.
bool isCompatibleWith(SILValue other) const;

template <typename RangeTy>
static Optional<ValueOwnershipKind> merge(RangeTy &&r) {
auto initial = Optional<ValueOwnershipKind>(ValueOwnershipKind::None);
Expand Down Expand Up @@ -440,6 +447,10 @@ class SILValue {
void verifyOwnership(DeadEndBlocks *DEBlocks = nullptr) const;
};

inline bool ValueOwnershipKind::isCompatibleWith(SILValue other) const {
return isCompatibleWith(other.getOwnershipKind());
}

/// A map from a ValueOwnershipKind that an operand can accept to a
/// UseLifetimeConstraint that describes the effect that the operand's use has
/// on the underlying value. If a ValueOwnershipKind is not in this map then
Expand Down