[Bug tree-optimization/46722] [4.6 Regression] Missed fma for x*x + y

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46722

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2010.11.30 14:48:36
         AssignedTo|unassigned at gcc dot       |rguenth at gcc dot gnu.org
                   |gnu.org                     |
     Ever Confirmed|0                           |1

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-30 14:48:36 UTC ---
History and the optimal power series expansion (thus, we want
x*x*x*x*x*x to be folded to pow(x,6) and optimally expanded).  I once
had patches to do that on the tree level and introduce a POW_EXPR
that also accepted integer exponents - long time ago.

Mine.