$ gcc-4.3 -c -Os -mregparm=3 -m32 test.c && objcopy -O binary test.o test.raw && du -b test.raw 66 test.raw
$ gcc-4.4 -c -Os -mregparm=3 -m32 test.c && objcopy -O binary test.o test.raw && du -b test.raw 70 test.raw -- Summary: code size regression (from 4.3) with -Os and -mregparm=3 Product: gcc Version: 4.4.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rmh at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41299