http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46557
Summary: [4.6 Regression] ICE in
cgraph_will_be_removed_from_program_if_no_direct_calls
, at cgraph.c:2820
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: rgue...@gcc.gnu.org
CC: hubi...@gcc.gnu.org
> ./cc1plus -quiet cppduchain.3.1.3.3.ii -O2 -std=c++0x
cppduchain.3.1.3.3.ii:39:9: internal compiler error: in
cgraph_will_be_removed_from_program_if_no_direct_calls, at cgraph.c:2820
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
reduced testcase:
template< class T > class TypePtr {
public:
T* operator->();
template<class U>
TypePtr<U> cast(U * = 0) const;
};
class AbstractType {
public:
typedef TypePtr<AbstractType> Ptr;
};
class TypeExchanger {
public:
virtual ~TypeExchanger() { }
};
class TypeAliasType {
public:
typedef TypePtr<TypeAliasType> Ptr;
AbstractType::Ptr type() const;
};
AbstractType::Ptr
shortenTypeForViewing(AbstractType::Ptr type)
{
struct ShortenAliasExchanger : public TypeExchanger
{
virtual AbstractType::Ptr exchange(const AbstractType::Ptr& type)
{
TypeAliasType::Ptr alias = type.cast<TypeAliasType>();
AbstractType::Ptr shortenedTarget = exchange(alias->type());
}
};
ShortenAliasExchanger exchanger;
type = exchanger.exchange(type);
}
probably related to both PR46535 and PR46523 (all from the same original
testcase)
