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[clang][bytecode] Fix diagnostics for int128 enums #151340

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Merged
tbaederr merged 1 commit into from
Jul 31, 2025
+14 −2
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[clang][bytecode] Fix diagnostics for int128 enums #151340

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2 changes: 1 addition & 1 deletion clang/lib/AST/ByteCode/Opcodes.td
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Original file line number Diff line number Diff line change
Expand Up @@ -412,7 +412,7 @@ def CheckDecl : Opcode {

def CheckEnumValue : Opcode {
let Args = [ArgEnumDecl];
let Types = [FixedSizeIntegralTypeClass];
let Types = [IntegralTypeClass];
let HasGroup = 1;
}

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14 changes: 13 additions & 1 deletion clang/test/AST/ByteCode/intap.cpp
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Expand Up @@ -292,7 +292,19 @@ constexpr int shifts() { // both-error {{never produces a constant expression}}
(void)(2 << b); // ref-warning {{shift count is negative}}
return 1;
}
#endif

namespace UnderlyingInt128 {
enum F {
a = (__int128)-1
};

constexpr int foo() { // both-error {{never produces a constant expression}}
F f = (F)(__int128)10; // both-note 2{{integer value 10 is outside the valid range of values [-1, 0] for the enumeration type 'F'}}
return (int)f;
}
static_assert(foo() == 0, ""); // both-error {{not an integral constant expression}} \
// both-note {{in call to}}
}
#endif

#endif