[Bug tree-optimization/54976] FAIL: gcc.dg/torture/pr47975.c (internal compiler error)

rguenth at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Fri Oct 19 09:01:00 GMT 2012


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54976

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2012-10-19
         AssignedTo|unassigned at gcc dot       |rguenth at gcc dot gnu.org
                   |gnu.org                     |
     Ever Confirmed|0                           |1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2012-10-19 09:00:45 UTC ---
Hm, we are calling get_vectype_for_scalar_type with a vector type argument
which has OImode (thus type_for_mode fails).

We can robustify get_vectype_for_scalar_type a bit, but maybe we should
fix the caller (BB vectorization) as well.  Not sure though, it might
still vectorize v2si operations to v2di ones for example.

Mine.



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