http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59226
Bug ID: 59226
Summary: [4.9 Regression] ICE: in record_target_from_binfo, at
ipa-devirt.c:661
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ipa
Assignee: unassigned at gcc dot gnu.org
Reporter: octoploid at yandex dot com
More outfall from r205019:
markus@x4 tmp % cat test.ii
class A {
virtual void m_fn1();
};
class B;
class C : A {
public:
virtual B *m_fn2();
};
class D : virtual C, A {};
class B {
public:
int m_fn1();
};
class F : virtual public C {};
class G : F, D {
virtual void m_fn6();
};
F *a;
int b = a->m_fn2()->m_fn1();
G c;
markus@x4 tmp % g++ -c -O2 test.ii
test.ii:9:7: warning: direct base ‘A’ inaccessible in ‘D’ due to ambiguity
[enabled by default]
class D : virtual C, A {};
^
test.ii:20:4: internal compiler error: in record_target_from_binfo, at
ipa-devirt.c:661
G c;
^
0x9bad92 record_target_from_binfo
../../gcc/gcc/ipa-devirt.c:661
0x9bab0b record_target_from_binfo
../../gcc/gcc/ipa-devirt.c:681
0x9bab0b record_target_from_binfo
../../gcc/gcc/ipa-devirt.c:681
0x9baf30 possible_polymorphic_call_targets_1
../../gcc/gcc/ipa-devirt.c:705
0x9baf84 possible_polymorphic_call_targets_1
../../gcc/gcc/ipa-devirt.c:711
0x9bd7a2 possible_polymorphic_call_targets(tree_node*, long,
ipa_polymorphic_call_context, bool*, void**)
../../gcc/gcc/ipa-devirt.c:1292
0x9e2145 possible_polymorphic_call_targets
../../gcc/gcc/ipa-utils.h:114
0x9e2145 walk_polymorphic_call_targets
../../gcc/gcc/ipa.c:175
0x9e2145 symtab_remove_unreachable_nodes(bool, _IO_FILE*)
../../gcc/gcc/ipa.c:398
0xa8a9b7 execute_todo
../../gcc/gcc/passes.c:1884
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.
