http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53703
Bug #: 53703 Summary: verify_ssa: definition in block 105 does not dominate use in block 103 Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassig...@gcc.gnu.org ReportedBy: dcb...@hotmail.com Created attachment 27639 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27639 C source code I just tried to compile the package gnet2-2.0.8-6 on gcc-4.8 trunk dated 20120617 on an AMD x86_64 box. The compiler said usagi_ifaddrs.c:428:1: error: definition in block 105 does not dominate use in block 103 usagi_getifaddrs (struct ifaddrs **ifap) ^ for SSA_NAME: .MEM_375 in statement: # VUSE <.MEM_375> D.5483_238 = ifamap.address_len; usagi_ifaddrs.c:428:1: internal compiler error: verify_ssa failed Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Preprocessed source code attached. Flag -O2 required.