[Bug tree-optimization/87319] When vector is wrapped, expression is not optimized.

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87319

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|middle-end                  |tree-optimization

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Really this reduces down to just (now):
void test1(const int* a, const int* b, const int* c, int* d)
{
    *d = *a * *c + *b * *c;
}
----- CUT ---
We don't reassociate to just:
*d = (*a +* b) * *c;

For signed types (including signed vector types).