[Bug tree-optimization/33291] [4.3 Regression] a+=2; a+=2 not simplified to a+=4; with -O3 (ok with gcc-4.2.1)

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |4.3.0
      Known to work|                            |4.2.1
            Summary|a+=2; a+=2  not simplified  |[4.3 Regression] a+=2; a+=2
                   |to  a+=4;  with -O3   (ok   |not simplified to  a+=4;
                   |with gcc-4.2.1)             |with -O3   (ok with gcc-
                   |                            |4.2.1)
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33291