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[clang][bytecode] Fix IntegralAP::{isMin,isMax} #145339

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Merged
tbaederr merged 1 commit into from
Jun 23, 2025
Merged

[clang][bytecode] Fix IntegralAP::{isMin,isMax} #145339

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12 changes: 10 additions & 2 deletions clang/lib/AST/ByteCode/IntegralAP.h
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Original file line number Diff line number Diff line change
Expand Up @@ -163,8 +163,16 @@ template <bool Signed> class IntegralAP final {
return !getValue().isNonNegative();
return false;
}
bool isMin() const { return getValue().isMinValue(); }
bool isMax() const { return getValue().isMaxValue(); }
bool isMin() const {
if constexpr (Signed)
return getValue().isMinSignedValue();
return getValue().isMinValue();
}
bool isMax() const {
if constexpr (Signed)
return getValue().isMaxSignedValue();
return getValue().isMaxValue();
}
static constexpr bool isSigned() { return Signed; }
bool isMinusOne() const { return Signed && getValue().isAllOnes(); }

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7 changes: 7 additions & 0 deletions clang/test/AST/ByteCode/intap.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,13 @@ static_assert(DivA / DivB == 2, "");
constexpr _BitInt(4) DivC = DivA / 0; // both-error {{must be initialized by a constant expression}} \
// both-note {{division by zero}}

constexpr __int128 isMinDiv() {
return __int128{0} / __int128{-1};
}
static_assert(isMinDiv() == 0, "");



constexpr _BitInt(7) RemA = 47;
constexpr _BitInt(6) RemB = 9;
static_assert(RemA % RemB == 2, "");
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