I have a patch.
-- Summary: cexp ( __complex__ ( 0, x ) ) can be folded to cexpi (x) Product: gcc Version: 4.3.0 Status: UNCONFIRMED Keywords: missed-optimization Severity: enhancement Priority: P3 Component: middle-end AssignedTo: rguenth at gcc dot gnu dot org ReportedBy: rguenth at gcc dot gnu dot org BugsThisDependsOn: 30172 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30197