http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48529
--- Comment #8 from H.J. Lu <hjl.tools at gmail dot com> 2011-05-27 12:36:21 UTC --- (In reply to comment #7) > Objective C failures: > > FAIL: objc.dg/torture/forward-1.m -O0 -fgnu-runtime execution test > FAIL: objc.dg/torture/forward-1.m -O1 -fgnu-runtime execution test > FAIL: objc.dg/torture/forward-1.m -O2 -fgnu-runtime execution test > FAIL: objc.dg/torture/forward-1.m -O2 -flto -fgnu-runtime execution test > FAIL: objc.dg/torture/forward-1.m -O2 -flto -flto-partition=none > -fgnu-runtime execution test > FAIL: objc.dg/torture/forward-1.m -O3 -fomit-frame-pointer -fgnu-runtime > execution test > FAIL: objc.dg/torture/forward-1.m -O3 -fomit-frame-pointer -funroll-all-loops > -finline-functions -fgnu-runtime execution test > FAIL: objc.dg/torture/forward-1.m -O3 -fomit-frame-pointer -funroll-loops > -fgnu-runtime execution test > FAIL: objc.dg/torture/forward-1.m -O3 -g -fgnu-runtime execution test > FAIL: objc.dg/torture/forward-1.m -Os -fgnu-runtime execution test Those are expected to fail for x32.