[Bug target/56087] [m68k] gcc miscompiles pari (multiplication)

[mikpe at it dot uu.se]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56087

Mikael Pettersson <mikpe at it dot uu.se> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mikpe at it dot uu.se

--- Comment #2 from Mikael Pettersson <mikpe at it dot uu.se> 2013-01-23 21:15:40 UTC ---
(In reply to comment #0)

> Using the same register twice in muls.l is not permitted. 

This sounds a lot like PR52573, a patch was proposed in July 2012 and finally
approved and committed a few days ago in r195288, see
<http://gcc.gnu.org/ml/gcc-patches/2013-01/msg00936.html>.

Can you confirm that Debian's gcc 4.6 lacks the PR52573 fix but its 4.7 does
have the fix?  If that's not the case, then this must be a different bug that
just happens to have symptoms similar to PR52573.