http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47299
H.J. Lu <hjl.tools at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2011.01.16 15:53:38 Version|4.5.0 |4.6.0 Target Milestone|--- |4.6.0 Summary|Widening multiply |[4.6 Regression] Widening |optimization generates bad |multiply optimization |code |generates bad code Ever Confirmed|0 |1 --- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2011-01-16 15:53:38 UTC --- It is a 4.6 regression. 4.5 branch is OK.