clang 3.2 RC2 miscompiles libgcc?

[Stefan Farfeleder]

On Fri, Jan 04, 2013 at 10:23:34PM +0200, Konstantin Belousov wrote:
> 
> Thank you for digging more.
> 
> In fact, it is more likely that there is some bug or incompatibility in
> c++ unwinder than in the libgcc itself, but as you noted, a compiler bug
> is also possible.
> 
> Anyway, I was mostly looking could the backtrace starts in rtld. Rtld bug
> also cannot be excluded at this stage, but it not much likely.

FWIW, the diff between working and non-working assembler can be found at
http://people.freebsd.org/~stefanf/tmp/libgcc_s.s.diff .
Not that I expect much from that.

Stefan