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[ADT] Simplify IsSizeLessThanThreshold (NFC) #160642

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Merged
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Sep 25, 2025
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[ADT] Simplify IsSizeLessThanThreshold (NFC) #160642

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7 changes: 3 additions & 4 deletions llvm/include/llvm/ADT/FunctionExtras.h
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Original file line number Diff line number Diff line change
Expand Up @@ -90,13 +90,12 @@ template <typename ReturnT, typename... ParamTs> class UniqueFunctionBase {
template <typename T> struct AdjustedParamTBase {
static_assert(!std::is_reference<T>::value,
"references should be handled by template specialization");
template <typename U>
using IsSizeLessThanThresholdT =
std::bool_constant<sizeof(U) <= 2 * sizeof(void *)>;
static constexpr bool IsSizeLessThanThreshold =
sizeof(T) <= 2 * sizeof(void *);
using type =
std::conditional_t<std::is_trivially_copy_constructible<T>::value &&
std::is_trivially_move_constructible<T>::value &&
IsSizeLessThanThresholdT<T>::value,
IsSizeLessThanThreshold,
T, T &>;
};

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