> cat bug.ii
struct S1 {
        S1() {}
};
struct S2 {
        void f2() {
                static S1 s1;
        }
};
void f(S2& s2) {
        s2.f2();
}

> g++ -O -fipa-pta bug.ii
bug1.ii: In function ‘void f(S2&)’:
bug1.ii:9: internal compiler error: in initialize_flags_in_bb, at
tree-into-ssa.c:437


-- 
           Summary: ICE in initialize_flags_in_bb  with  -O -fipa-pta
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: wouter dot vermaelen at scarlet dot be


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32305