[Bug tree-optimization/39468] Constant propagation in a number of tree passes does not take into account machine costs.

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2009-03-15 22:25 -------
Trying to deal with this on the tree level will certainly be the wrong thing. 
A
target dependent pass should instead try to re-materialize code to generate
constants from existing ones.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |missed-optimization
            Version|lto                         |4.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39468