See failing test, analysis, suggested patch here: http://gcc.gnu.org/ml/gcc-patches/2007-04/msg01595.html
-- Summary: wrong codegen from reload Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: hm dot chang at apple dot com GCC build triplet: i386-apple-darwin8 GCC host triplet: i386-apple-darwin8 GCC target triplet: i386-apple-darwin8 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31686