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[clang][Interp] Point 'declared here' note of invalid fns to definition #102031

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Merged
merged 1 commit into from
Aug 6, 2024
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[clang][Interp] Point 'declared here' note of invalid fns to definition #102031

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7 changes: 6 additions & 1 deletion clang/lib/AST/Interp/Interp.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -628,7 +628,12 @@ bool CheckCallable(InterpState &S, CodePtr OpPC, const Function *F) {

S.FFDiag(Loc, diag::note_constexpr_invalid_function, 1)
<< DiagDecl->isConstexpr() << (bool)CD << DiagDecl;
S.Note(DiagDecl->getLocation(), diag::note_declared_at);

if (DiagDecl->getDefinition())
S.Note(DiagDecl->getDefinition()->getLocation(),
diag::note_declared_at);
else
S.Note(DiagDecl->getLocation(), diag::note_declared_at);
}
} else {
S.FFDiag(Loc, diag::note_invalid_subexpr_in_const_expr);
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17 changes: 17 additions & 0 deletions clang/test/AST/Interp/cxx20.cpp
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Expand Up @@ -841,3 +841,20 @@ namespace VariadicCallOperator {
}
constexpr int A = foo();
}

namespace DefinitionLoc {

struct NonConstexprCopy {
constexpr NonConstexprCopy() = default;
NonConstexprCopy(const NonConstexprCopy &);
constexpr NonConstexprCopy(NonConstexprCopy &&) = default;

int n = 42;
};

NonConstexprCopy::NonConstexprCopy(const NonConstexprCopy &) = default; // both-note {{here}}

constexpr NonConstexprCopy ncc1 = NonConstexprCopy(NonConstexprCopy());
constexpr NonConstexprCopy ncc2 = ncc1; // both-error {{constant expression}} \
// both-note {{non-constexpr constructor}}
}
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