https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100439
--- Comment #10 from Florin Iucha <florin.iucha at amd dot com> ---
I am able to reproduce something similar by building GCC11 from snapshot
11-20210626 (96358cbbdddde6e6447519a155301b6acb1624c0) and then using Clang12
(12.0.1-rc4) ubsan:
#234 0x7f9769d39670 in __cxxabiv1::__si_class_type_info::__do_dyncast(long,
__cxxabiv1::__class_type_info::__sub_kind, __cxxabiv1::__[0/48169]
e_info const*, void const*, __cxxabiv1::__class_type_info const*, void const*,
__cxxabiv1::__class_type_info::__dyncast_result&) const /home/fiuch
a/tools/gcc.objdir/x86_64-linux-gnu/libstdc++-v3/libsupc++/../../../../gcc/libstdc++-v3/libsupc++/si_class_type_info.cc:52:13
#235 0x7f9769d379e8 in __dynamic_cast
/home/fiucha/tools/gcc.objdir/x86_64-linux-gnu/libstdc++-v3/libsupc++/../../../../gcc/libstdc++-v3/libsu
pc++/dyncast.cc:74:28
#236 0x5dd0b6 in __ubsan::checkDynamicType(void*, void*, unsigned long)
/home/fiucha/tools/llvm12/compiler-rt/lib/ubsan/ubsan_type_hash_itaniu
m.cpp:233:5
#237 0x5dbf11 in
HandleDynamicTypeCacheMiss(__ubsan::DynamicTypeCacheMissData*, unsigned long,
unsigned long, __ubsan::ReportOptions)
/home/fiucha/tools/llvm12/compiler-rt/lib/ubsan/ubsan_handlers_cxx.cpp:36:7
#238 0x5dbee9 in __ubsan_handle_dynamic_type_cache_miss
/home/fiucha/tools/llvm12/compiler-rt/lib/ubsan/ubsan_handlers_cxx.cpp:87:3
#239 0x60b931 in std::type_info::operator==(std::type_info const&) const
/opt/gcc11-for-tng/lib/gcc/x86_64-linux-gnu/11.1.1/../../../../include/c++/11.1.1/typeinfo:122:16
#240 0x7f9769d39670 in
__cxxabiv1::__si_class_type_info::__do_dyncast(long,
__cxxabiv1::__class_type_info::__sub_kind, __cxxabiv1::__class_type_info
const*, void const*, __cxxabiv1::__class_type_info const*, void const*,
__cxxabiv1::__class_type_info::__dyncast_result&) const
/home/fiucha/tools/gcc.objdir/x86_64-linux-gnu/libstdc++-v3/libsupc++/../../../../gcc/libstdc++-v3/libsupc++/si_class_type_info.cc:52:13
#241 0x7f9769d379e8 in __dynamic_cast
/home/fiucha/tools/gcc.objdir/x86_64-linux-gnu/libstdc++-v3/libsupc++/../../../../gcc/libstdc++-v3/libsu
pc++/dyncast.cc:74:28
#242 0x5dd0b6 in __ubsan::checkDynamicType(void*, void*, unsigned long)
/home/fiucha/tools/llvm12/compiler-rt/lib/ubsan/ubsan_type_hash_itaniu
m.cpp:233:5
#243 0x5dbf11 in
HandleDynamicTypeCacheMiss(__ubsan::DynamicTypeCacheMissData*, unsigned long,
unsigned long, __ubsan::ReportOptions) /home/fi
ucha/tools/llvm12/compiler-rt/lib/ubsan/ubsan_handlers_cxx.cpp:36:7
#244 0x5dbee9 in __ubsan_handle_dynamic_type_cache_miss
/home/fiucha/tools/llvm12/compiler-rt/lib/ubsan/ubsan_handlers_cxx.cpp:87:3
#245 0x60b931 in std::type_info::operator==(std::type_info const&) const
/opt/gcc11-for-tng/lib/gcc/x86_64-linux-gnu/11.1.1/../../../../includ
e/c++/11.1.1/typeinfo:122:16
#246 0x7f9769d39670 in __cxxabiv1::__si_class_type_info::__do_dyncast(long,
__cxxabiv1::__class_type_info::__sub_kind, __cxxabiv1::__class_typ
e_info const*, void const*, __cxxabiv1::__class_type_info const*, void const*,
__cxxabiv1::__class_type_info::__dyncast_result&) const /home/fiuch
a/tools/gcc.objdir/x86_64-linux-gnu/libstdc++-v3/libsupc++/../../../../gcc/libstdc++-v3/libsupc++/si_class_type_info.cc:52:13
#247 0x7f9769d379e8 in __dynamic_cast
/home/fiucha/tools/gcc.objdir/x86_64-linux-gnu/libstdc++-v3/libsupc++/../../../../gcc/libstdc++-v3/libsu
pc++/dyncast.cc:74:28
#248 0x5dd0b6 in __ubsan::checkDynamicType(void*, void*, unsigned long)
/home/fiucha/tools/llvm12/compiler-rt/lib/ubsan/ubsan_type_hash_itaniu
m.cpp:233:5
#249 0x5dbf11 in
HandleDynamicTypeCacheMiss(__ubsan::DynamicTypeCacheMissData*, unsigned long,
unsigned long, __ubsan::ReportOptions) /home/fi
ucha/tools/llvm12/compiler-rt/lib/ubsan/ubsan_handlers_cxx.cpp:36:7
SUMMARY: AddressSanitizer: stack-overflow
/home/fiucha/tools/llvm12/compiler-rt/lib/sanitizer_common/sanitizer_posix_libcdep.cpp:278
in __sanitize
r::IsAccessibleMemoryRange(unsigned long, unsigned long)
==2162813==ABORTING
This doesn't fail on a simple hello_ub.cpp example - but on a complex module
using Google test, again.
