https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79454

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2017-02-10
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org
   Target Milestone|---                         |7.0
     Ever confirmed|0                           |1

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
This is actually a regression, while in gcc 6 we for
-fsanitize=signed-integer-overflow ignored vector arithmetics (thus wouldn't
signal possible overflows), at least we computed the correct values, but now we
properly signal the overflow, but compute wrong values.

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