[llvm-bugs] [Bug 26156] New: typeinfo for __int128_t and __uint128_t not emitted

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=26156

            Bug ID: 26156
           Summary: typeinfo for __int128_t and __uint128_t not emitted
           Product: clang
           Version: 3.7
          Hardware: PC
                OS: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: hartmut.brandt at dlr.de
                CC: dgregor at apple.com, llvm-bugs at lists.llvm.org
    Classification: Unclassified

The following program fails to link:

#include <typeinfo>
const auto &ti = typeid(__int128_t);
const auto &tu = typeid(__uint128_t);
int main() {}

The linker output is:

/tmp/x-49a846.o:(.rodata+0x0): undefined reference to `typeinfo for __int128'
/tmp/x-49a846.o:(.rodata+0x8): undefined reference to `typeinfo for unsigned
__int128'
clang++: error: linker command failed with exit code 1 (use -v to see
invocation)

Looks like the compiler is not emitting the typeinfo for those types. Gcc seems
to have fixed this last year (did not check, just looked at a bug report there
(https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43622)).

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