https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92522
Bug ID: 92522
Summary: valid code using deque throws bad_alloc when compiled
with -flto
Product: gcc
Version: 9.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: johnilacqua at hotmail dot com
Target Milestone: ---
Minimal example:
//sample.cc
#include <deque>
std::deque<int> test;
//main.cc
#include <deque>
extern std::deque<int> test;
static const auto sample = test;
int main() {}
compile command:
g++-9 -flto sample.cc main.cc
g++-9 --version
g++-9 (Ubuntu 9.2.1-17ubuntu1~16.04) 9.2.1 20191102
Running the resulting binary throws bad_alloc.
Running with valgrind displays output:
**168** new/new[] failed and should throw an exception, but Valgrind
**168** cannot throw exceptions and so is aborting instead. Sorry.
==168== at 0x4C2D96C: ??? (in
/usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==168== by 0x4C2E165: operator new(unsigned long) (in
/usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==168== by 0x40113F: __gnu_cxx::new_allocator<int*>::allocate(unsigned long,
void const*) (in /home/john/test/a.out)
==168== by 0x40103D: std::allocator_traits<std::allocator<int*>
>::allocate(std::allocator<int*>&, unsigned long) (in /home/john/test/a.out)
==168== by 0x400E43: std::_Deque_base<int, std::allocator<int>
>::_M_allocate_map(unsigned long) (in /home/john/test/a.out)
==168== by 0x400B7B: std::_Deque_base<int, std::allocator<int>
>::_M_initialize_map(unsigned long) (in /home/john/test/a.out)
==168== by 0x4015E6: std::_Deque_base<int, std::allocator<int>
>::_Deque_base(std::allocator<int> const&, unsigned long) (in
/home/john/test/a.out)
==168== by 0x40145A: std::deque<int, std::allocator<int>
>::deque(std::deque<int, std::allocator<int> > const&) (in
/home/john/test/a.out)
==168== by 0x402005: __static_initialization_and_destruction_0(int, int)
[clone .lto_priv.1] (in /home/john/test/a.out)
==168== by 0x40202E: _GLOBAL__sub_I_main (in /home/john/test/a.out)
==168== by 0x402039: _sub_I_65535_0.4643 (in /home/john/test/a.out)
==168== by 0x40209C: __libc_csu_init (in /home/john/test/a.out)
