http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56830
--- Comment #5 from Dmitry G. Dyachenko <dimhen at gmail dot com> 2013-04-04 18:27:23 UTC --- Created attachment 29806 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29806 ICE with -O1 only $ g++ -Wall -O1 -fpreprocessed -c 56830.ii 56830.ii: In instantiation of ‘void H::add_suites() [with T = M]’: 56830.ii:107:25: required from here 56830.ii:94:12: warning: unused variable ‘s’ [-Wunused-variable] T *s = new T; ^ 56830.ii: In function ‘int main()’: 56830.ii:104:5: error: definition in block 3 does not dominate use in block 7 int main () ^ for SSA_NAME: _8 in statement: # .MEM_30 = VDEF <.MEM_15> MEM[(struct F *)_8] ={v} {CLOBBER}; 56830.ii:104:5: internal compiler error: verify_ssa failed 0xbe1b4c verify_ssa(bool) /home/dimhen/src/gcc-current/gcc/tree-ssa.c:1046 0x9c4ca1 execute_function_todo /home/dimhen/src/gcc-current/gcc/passes.c:1964 0x9c5537 execute_todo /home/dimhen/src/gcc-current/gcc/passes.c:1996 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions.