Re: clang 3.2 RC2 miscompiles libgcc?

On 12/27/12 09:07, Stefan Farfeleder wrote:
> Hi,
>
> I noticed that most of my C++ applications in recent versions of FreeBSD
> head suddenly crash without me recompiling them. I tracked it down to
> r243830 which imported a new clang version. The new clang seems to
> compile libgcc in a wrong or at least incompatible way with what gcc
> expects. In fact, the breakage only occurs with libgcc compiled by a
> post-r243830 clang and an application compiled with g++ -O2. For me, the
> crash happens with boost::program_options, but I'm not sure if that is
> necessary for the crash.

I've seen what I think is the same thing due to a miscompilation of
unwind-dw2.c that caused crashes related to cross-shared-object
exception handling. It seems to have been fixed with the 3.2 release but
I haven't tested it too thoroughly yet.
-Nathan