[Bug rtl-optimization/47299] [4.6 Regression] Widening multiply optimization generates bad code

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47299

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

           What    |Removed                     |Added
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             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |jakub at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-01-17 
11:25:00 UTC ---
Created attachment 22994
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22994
gcc46-pr47299.patch

Untested fix.