With the same CFLAGS/CXXFLAGS, GCC 4.3.0 produces the code which is on average 1-5% bigger then the code produced by GCC 4.2.3.
My usual c|c++ flags are: -march=pentium2 -O2 -pipe -ftree-vectorize I've tested wine 0.9.58 and KDE 3.5.9. -- Summary: [POSSIBLY NOT A BUG] GCC 4.3.0 vs. 4.2.3 observations Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: minor Priority: P3 Component: regression AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: t dot artem at mailcity dot com GCC host triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35671