https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89693
Jan Hubicka <hubicka at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |hubicka at gcc dot gnu.org
--- Comment #2 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
ip-cp clones thunk:
Evaluating opportunities for virtual C* C::_ZTch0_h8_N1C3TwoEv()/5.
- Creating a specialized node of virtual C* C::_ZTch0_h8_N1C3TwoEv()/5 for all
known contexts.
the new node is _ZTch0_h8_N1C3TwoEv.constprop/41.
and this makes verifier unhappy. clone_of returns false for:
(gdb) p node->debug ()
_ZTchn8_h8_N1C3TwoEv/7 (virtual C* C::_ZTchn8_h8_N1C3TwoEv()) @0x7ffff70e9ca8
Type: function definition analyzed
Visibility: externally_visible asm_written public virtual artificial
Address is taken.
References:
Referring: _ZTV1C/25 (addr)
Availability: available
Function flags: indirect_call_target
Thunk fixed offset -8 virtual value 0 indirect_offset 0 has virtual offset 0
Called by:
Calls: C* C::*.LTHUNK1()/6
$21 = void
(gdb) p node2->debug ()
_ZTch0_h8_N1C3TwoEv.constprop.0/41 (_ZTch0_h8_N1C3TwoEv.constprop)
@0x7ffff7262708
Type: function definition analyzed
Visibility: artificial
References:
Referring:
Clone of _ZTch0_h8_N1C3TwoEv/5
Availability: local
Function flags: count:10000 (estimated locally) local
Former thunk fixed offset 8 virtual value 0 indirect_offset 0 has virtual
offset 0
Called by: int main()/24 (1073741824 (estimated locally),1.00 per call)
Calls:
I think the bug here is that Martin's patch makes clone_of to look at thunk
target of _ZTchn8_h8_N1C3TwoEv, but _ZTch0_h8_N1C3TwoEv.constprop.0 actual
clone of _ZTchn8_h8_N1C3TwoEv.
