[llvm-bugs] [Bug 40607] [ubsan] False positive object-size error in constructors of classes with multiple virtual inheritance

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=40607

maic <maic23 at live.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED
                 CC|                            |maic23 at live.de

--- Comment #2 from maic <maic23 at live.de> ---
Fixed between clang-9 and clang-11:


$ clang++-11 -std=c++11 -O2 -fsanitize=object-size ./2.cpp  && ./a.out          
$ clang++-9 -std=c++11 -O2 -fsanitize=object-size ./2.cpp  && ./a.out
2.cpp:9:8: runtime error: constructor call on address 0x7ffc9fa7f7a8 with
insufficient space for an object of type 'D'
0x7ffc9fa7f7a8: note: pointer points here
 00 00 00 00  c1 11 00 00 a0 04 00 00  00 00 00 00 00 00 00 00  d0 3f e5 2d 5b
7f 00 00  02 00 00 00
              ^

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