The following two function should be the same: _Bool f(_Bool a) { return a!=1; } _Bool f1(_Bool a) { _Bool b = !a; return b; }
Right now f1 is the most optimal. -- Summary: boolvar != 1 is not converted to !boolvar Product: gcc Version: 4.1.0 Status: UNCONFIRMED Keywords: missed-optimization Severity: enhancement Priority: P3 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: pinskia at gcc dot gnu dot org OtherBugsDependingO 18908,19987 nThis: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24989