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a030fcad4f
We currently crash upon mangling members that have an anonymous union or a template operator type. The problem is that before calling write_unqualified_name, write_member_name asserts that it has a declaration whose DECL_NAME is an identifier node that is not that of an operator. This is wrong: - In PR100632, it's an anonymous union declaration, hence a 0 DECL_NAME - In PR109790, it's a legitimate template declaration for an operator (this was accepted up to GCC 10) This assert was added via r11-6301, to be sure that we do write the "on" marker for operator members. This patch removes that assert and instead - Lets members with an anonymous union type go through - For operators, adds the missing "on" marker for ABI versions greater than the highest usable with GCC 10 PR c++/109790 PR c++/100632 gcc/cp/ChangeLog: * mangle.cc (write_member_name): Handle members whose type is an anonymous union member. Write missing "on" marker for operators when ABI version is at least 16. gcc/testsuite/ChangeLog: * g++.dg/cpp0x/decltype83.C: New test. * g++.dg/cpp0x/decltype83a.C: New test. * g++.dg/cpp1y/lambda-ice3.C: New test. * g++.dg/cpp1y/lambda-ice3a.C: New test. * g++.dg/cpp2a/nontype-class67.C: New test.
20 lines
664 B
C
20 lines
664 B
C
// PR c++/109790
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// This used to work until GCC 10; force the usage of ABI 15 (the highest
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// usable in GCC 10) and check that the mangling (actually wrong; see
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// lambda-ice3a.C) matches that of GCC 10's default ABI version (14).
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// { dg-do compile { target c++14 } }
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// { dg-additional-options "-fabi-version=15" }
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auto ll = [](auto ... ){};
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template <class _Impl, class _Args>
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void mm(void (_Impl::*__p)(_Args) const);
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template <class _Ts>
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using __impl_for = decltype(mm(&decltype(ll)::operator()<_Ts>));
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template <class _Ts> __impl_for<_Ts> f() { }
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void aaa() {
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f<int>();
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}
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// { dg-final { scan-assembler "_Z1fIiEDTcl2mmadsrN2llMUlDpT_E_EclIT_EEEv" } }
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