You maybe able to add a test for that in C++: Clang types can have 0 size, the padding from 0 to 1 happens in the CodeGen IIRC. See also this bug: https://bugs.llvm.org/show_bug.cgi?id=31612
- Raphael Am Di., 23. Okt. 2018 um 02:33 Uhr schrieb Davide Italiano via lldb-commits <lldb-commits@lists.llvm.org>: > > Author: davide > Date: Mon Oct 22 17:31:46 2018 > New Revision: 344982 > > URL: http://llvm.org/viewvc/llvm-project?rev=344982&view=rev > Log: > [ValueObject] Stop assuming types are non-zero sized. > > Some backends might violate this assumption. No test case > upstream unfortunately as this is not the case with C++, > but I'm going to add a test in swift language support. > > <rdar://problem/40962410> > > Modified: > lldb/trunk/source/Core/ValueObjectConstResultImpl.cpp > > Modified: lldb/trunk/source/Core/ValueObjectConstResultImpl.cpp > URL: > http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Core/ValueObjectConstResultImpl.cpp?rev=344982&r1=344981&r2=344982&view=diff > ============================================================================== > --- lldb/trunk/source/Core/ValueObjectConstResultImpl.cpp (original) > +++ lldb/trunk/source/Core/ValueObjectConstResultImpl.cpp Mon Oct 22 17:31:46 > 2018 > @@ -77,7 +77,13 @@ ValueObject *ValueObjectConstResultImpl: > ignore_array_bounds, child_name_str, child_byte_size, > child_byte_offset, > child_bitfield_bit_size, child_bitfield_bit_offset, > child_is_base_class, > child_is_deref_of_parent, m_impl_backend, language_flags); > - if (child_compiler_type && child_byte_size) { > + > + // One might think we should check that the size of the children > + // is always strictly positive, hence we could avoid creating a > + // ValueObject if that's not the case, but it turns out there > + // are languages out there which allow zero-size types with > + // children (e.g. Swift). > + if (child_compiler_type) { > if (synthetic_index) > child_byte_offset += child_byte_size * synthetic_index; > > > > _______________________________________________ > lldb-commits mailing list > lldb-commits@lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
