GCC implemented a stricter definition for the IBM extended long double format than defined in AIX and XLC. GCC cmptf pattern will not produce correct results for some values generated by XLC.
-- Summary: GCC ldouble format incompatibility with XLC long double Product: gcc Version: 3.4.0 Status: UNCONFIRMED Keywords: ABI Severity: normal Priority: P2 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dje at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: *-*-* GCC host triplet: *-*-* GCC target triplet: powerpc-*-* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19019