Ted, This was a good catch! I landed a patch for this a little while ago:
https://reviews.llvm.org/D70992 <https://reviews.llvm.org/D70992> Thank you > On Nov 25, 2019, at 9:49 AM, Ted Woodward via lldb-dev > <lldb-dev@lists.llvm.org> wrote: > > Here’s an interesting bug, in source/Utility/DataExtractor.cpp, > DataExtractor::GetMaxU64Bitfield: > > uint64_t bitfield_mask = ((1ul << bitfield_bit_size) - 1); > > In Visual Studio 2017, ul is a 32 bit type. When I run it with a size of 36 > (from large_packed in test/API/lang/c/bitfields/main.c), I get a mask of 0x0f. > I think that should be 1ull, or (uint64_t) 1, not 1ul. > > MSDN problem talking about the size of ul: > https://developercommunity.visualstudio.com/content/problem/226112/vs2017-1ul-32-is-evaluated-to-0-in-watch-window-du.html > > <https://developercommunity.visualstudio.com/content/problem/226112/vs2017-1ul-32-is-evaluated-to-0-in-watch-window-du.html> > > Thoughts? > _______________________________________________ > lldb-dev mailing list > lldb-dev@lists.llvm.org <mailto:lldb-dev@lists.llvm.org> > https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev > <https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev>
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