[Bug rtl-optimization/29854] reload_combine looses track of uses

[amylaar at gcc dot gnu dot org]

------- Comment #2 from amylaar at gcc dot gnu dot org  2008-12-27 12:16 -------
(In reply to comment #1)
> Is there a test case which shows the wrong-code
> behavior, and which can be checked against the
> new register allocator?

I don't know of any particular test case.  If you
want one, I suggest to compile the SH linux kernel
with and without the patch and diff the assemply
output of the compiler.
You could also try looking in Toshi Morita's
stress testsuite, or any other code that is heavy
with reloads and large stack frames.


-- 

amylaar at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2008-12-27 12:16:47
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29854