http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47355
--- Comment #4 from Zdenek Sojka <zsojka at seznam dot cz> 2011-01-19 13:27:34 UTC --- Created attachment 23029 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23029 more reduced testcase $ gcc -O -fipa-cp -fipa-cp-clone testcase.C testcase.C: In function 'void foo()': testcase.C:30:1: error: definition in block 15 does not dominate use in block 14 testcase.C:30:1: error: no immediate_use list for SSA_NAME: D.2189_30 in statement: names$_storage_26 = D.2189_30 + D.2160_19; testcase.C:30:1: 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. (r168850, x86_64-linux)