https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61250
--- Comment #16 from howarth at bromo dot med.uc.edu --- (In reply to howarth from comment #15) > (In reply to howarth from comment #14) > > Testing https://gcc.gnu.org/ml/gcc-patches/2015-03/msg01334.html in case > > correction of the overflow tests eliminates this bug. > > The proposed patch for correcting overflows doesn't eliminate this bug. With Jan's patch the failure still appears as... #0 0x00007fff96238286 in __pthread_kill () #1 0x00007fff9488042f in pthread_kill () #2 0x00007fff8e9c1b53 in abort () #3 0x0000000100f32170 in linemap_lookup (set=0x10175e0f0, line=651) at ../../gcc-5-20150326/libcpp/line-map.c:806