https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79341
--- Comment #42 from Dominik Vogt <vogt at linux dot vnet.ibm.com> --- With glibc-2.18 and the various patches, the following tets fail: -m31: * deep-stack-uaf-1.C -m64: * null-deref-1.c * deep-stack-uaf-1.C * overflow-vec-1.c * overflow-vec-2.c * float-cast-overflow-10.c I.e. the same as with glibc-2.23. At least this part of the problems is solved.