http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53081
Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |missed-optimization Status|UNCONFIRMED |NEW Last reconfirmed| |2012-04-23 CC| |rguenth at gcc dot gnu.org Component|middle-end |tree-optimization Version|unknown |4.8.0 Ever Confirmed|0 |1 --- Comment #8 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-04-23 10:26:45 UTC --- clearing recognition is enabled by default at -O2+ with -ftree-loop-distribute-patterns. I agree more general memset handling would be nice, as well as memcpy and memmove recognition.