http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46556
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2010.11.22 10:22:43
Ever Confirmed|0 |1
--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-22
10:22:43 UTC ---
Well, we obviously can't have it both ways ...
I think RTL fwprop could recognize that propagating (n+CST)*4 isn't resulting
in a valid addressing mode and then rewrite it as n*4 + CST to expose the CSE
opportunity. Or IVOPTs can be made work on non-loops (I suppose if you
construct an equivalent testcase that has the accesses within a loop it works?)
