================
@@ -276,6 +276,10 @@ class DecodedThread : public
std::enable_shared_from_this<DecodedThread> {
/// The string message of this item if it's an error
std::string error;
+
+ TraceItemStorage() {}
+ ~TraceItemStorage() {}
----------------
nmosier wrote:
`TraceItemStorage()` can't be defaulted because the union member `std::string
error` has a non-trivial default constructor (quoted from
[here](https://en.cppreference.com/w/cpp/language/union)):
> If a union contains a non-static data member with a non-trivial default
> constructor, the default constructor of the union is deleted by default
> unless a variant member of the union has a default member initializer.
`~TraceItemStorage()` can't be defaulted because the union member `std::string
error` has a non-trivial destructor (quoted from
[here](https://en.cppreference.com/w/cpp/language/union)):
> If a union contains a non-static data member with a non-trivial special
> member function (copy/move constructor, copy/move assignment, or destructor),
> that function is deleted by default in the union and needs to be defined
> explicitly by the programmer.
Anyways, if I try to default them, I get these compile errors:
```
In file included from
/usr/include/x86_64-linux-gnu/c++/11/bits/c++allocator.h:33,
from /usr/include/c++/11/bits/allocator.h:46,
from /usr/include/c++/11/unordered_map:40,
from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/include/lldb/Target/Trace.h:13,
from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.h:13,
from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.cpp:9:
/usr/include/c++/11/ext/new_allocator.h: In instantiation of ‘void
__gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage; _Args = {}; _Tp
= lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage]’:
/usr/include/c++/11/bits/alloc_traits.h:516:17: required from ‘static void
std::allocator_traits<std::allocator<_Tp1>
>::construct(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&,
_Up*, _Args&& ...) [with _Up =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage; _Args = {}; _Tp
= lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage;
std::allocator_traits<std::allocator<_Tp1> >::allocator_type =
std::allocator<lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage>]’
/usr/include/c++/11/bits/vector.tcc:115:30: required from ‘std::vector<_Tp,
_Alloc>::reference std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with
_Args = {}; _Tp =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage; _Alloc =
std::allocator<lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage>;
std::vector<_Tp, _Alloc>::reference =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage&]’
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.cpp:110:27:
required from here
/usr/include/c++/11/ext/new_allocator.h:162:11: error: use of deleted function
‘lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage::TraceItemStorage()’
162 | { ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.cpp:9:
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.h:280:5:
note:
‘lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage::TraceItemStorage()’
is implicitly deleted because the default definition would be ill-formed:
280 | TraceItemStorage() = default;
| ^~~~~~~~~~~~~~~~
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.h:278:17:
error: union member
‘lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage::error’ with
non-trivial ‘std::__cxx11::basic_string<_CharT, _Traits,
_Alloc>::basic_string() [with _CharT = char; _Traits = std::char_traits<char>;
_Alloc = std::allocator<char>]’
278 | std::string error;
| ^~~~~
```
and
```
In file included from /usr/include/c++/11/optional:44,
from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/include/lldb/Target/Trace.h:12,
from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.h:13,
from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.cpp:9:
/usr/include/c++/11/bits/stl_construct.h: In instantiation of ‘void
std::_Destroy(_ForwardIterator, _ForwardIterator) [with _ForwardIterator =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage*]’:
/usr/include/c++/11/bits/alloc_traits.h:848:15: required from ‘void
std::_Destroy(_ForwardIterator, _ForwardIterator, std::allocator<_T2>&) [with
_ForwardIterator =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage*; _Tp =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage]’
/usr/include/c++/11/bits/stl_vector.h:680:15: required from ‘std::vector<_Tp,
_Alloc>::~vector() [with _Tp =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage; _Alloc =
std::allocator<lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage>]’
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.cpp:253:62:
required from here
/usr/include/c++/11/bits/stl_construct.h:188:51: error: static assertion
failed: value type is destructible
188 | static_assert(is_destructible<_Value_type>::value,
| ^~~~~
/usr/include/c++/11/bits/stl_construct.h:188:51: note:
‘std::integral_constant<bool, false>::value’ evaluates to false
In file included from
/usr/include/x86_64-linux-gnu/c++/11/bits/c++allocator.h:33,
from /usr/include/c++/11/bits/allocator.h:46,
from /usr/include/c++/11/unordered_map:40,
from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/include/lldb/Target/Trace.h:13,
from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.h:13,
from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.cpp:9:
/usr/include/c++/11/ext/new_allocator.h: In instantiation of ‘void
__gnu_cxx::new_allocator<_Tp>::destroy(_Up*) [with _Up =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage; _Tp =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage]’:
/usr/include/c++/11/bits/alloc_traits.h:535:15: required from ‘static void
std::allocator_traits<std::allocator<_Tp1>
>::destroy(std::allocator_traits<std::allocator<_Tp1> >::allocator_type&, _Up*)
[with _Up = lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage; _Tp
= lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage;
std::allocator_traits<std::allocator<_Tp1> >::allocator_type =
std::allocator<lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage>]’
/usr/include/c++/11/bits/vector.tcc:488:28: required from ‘void
std::vector<_Tp, _Alloc>::_M_realloc_insert(std::vector<_Tp, _Alloc>::iterator,
_Args&& ...) [with _Args = {}; _Tp =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage; _Alloc =
std::allocator<lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage>;
std::vector<_Tp, _Alloc>::iterator =
std::vector<lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage>::iterator]’
/usr/include/c++/11/bits/vector.tcc:121:21: required from ‘std::vector<_Tp,
_Alloc>::reference std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with
_Args = {}; _Tp =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage; _Alloc =
std::allocator<lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage>;
std::vector<_Tp, _Alloc>::reference =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage&]’
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.cpp:110:27:
required from here
/usr/include/c++/11/ext/new_allocator.h:168:20: error: use of deleted function
‘lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage::~TraceItemStorage()’
168 | { __p->~_Up(); }
| ~~~~~~~~~^~
In file included from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.cpp:9:
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.h:281:5:
note:
‘lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage::~TraceItemStorage()’
is implicitly deleted because the default definition would be ill-formed:
281 | ~TraceItemStorage() = default;
| ^
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.h:278:17:
error: union member
‘lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage::error’ with
non-trivial ‘std::__cxx11::basic_string<_CharT, _Traits,
_Alloc>::~basic_string() [with _CharT = char; _Traits = std::char_traits<char>;
_Alloc = std::allocator<char>]’
278 | std::string error;
| ^~~~~
In file included from /usr/include/c++/11/vector:66,
from /usr/include/c++/11/functional:62,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/llvm/include/llvm/ADT/DenseMap.h:25,
from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/llvm/include/llvm/Support/JSON.h:49,
from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/include/lldb/Target/Trace.h:15,
from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.h:13,
from
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.cpp:9:
/usr/include/c++/11/bits/stl_uninitialized.h: In instantiation of
‘_ForwardIterator std::uninitialized_copy(_InputIterator, _InputIterator,
_ForwardIterator) [with _InputIterator =
std::move_iterator<lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage*>;
_ForwardIterator =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage*]’:
/usr/include/c++/11/bits/stl_uninitialized.h:333:37: required from
‘_ForwardIterator std::__uninitialized_copy_a(_InputIterator, _InputIterator,
_ForwardIterator, std::allocator<_Tp>&) [with _InputIterator =
std::move_iterator<lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage*>;
_ForwardIterator =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage*; _Tp =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage]’
/usr/include/c++/11/bits/stl_uninitialized.h:355:2: required from
‘_ForwardIterator std::__uninitialized_move_if_noexcept_a(_InputIterator,
_InputIterator, _ForwardIterator, _Allocator&) [with _InputIterator =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage*;
_ForwardIterator =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage*; _Allocator =
std::allocator<lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage>]’
/usr/include/c++/11/bits/vector.tcc:474:3: required from ‘void
std::vector<_Tp, _Alloc>::_M_realloc_insert(std::vector<_Tp, _Alloc>::iterator,
_Args&& ...) [with _Args = {}; _Tp =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage; _Alloc =
std::allocator<lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage>;
std::vector<_Tp, _Alloc>::iterator =
std::vector<lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage>::iterator]’
/usr/include/c++/11/bits/vector.tcc:121:21: required from ‘std::vector<_Tp,
_Alloc>::reference std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with
_Args = {}; _Tp =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage; _Alloc =
std::allocator<lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage>;
std::vector<_Tp, _Alloc>::reference =
lldb_private::trace_intel_pt::DecodedThread::TraceItemStorage&]’
/afs/cs.stanford.edu/u/nmosier/llvm/bugfix-lldb-intelpt/lldb/source/Plugins/Trace/intel-pt/DecodedThread.cpp:110:27:
required from here
/usr/include/c++/11/bits/stl_uninitialized.h:138:72: error: static assertion
failed: result type must be constructible from value type of input range
138 | static_assert(is_constructible<_ValueType2,
decltype(*__first)>::value,
|
^~~~~
/usr/include/c++/11/bits/stl_uninitialized.h:138:72: note:
‘std::integral_constant<bool, false>::value’ evaluates to false
```
https://github.com/llvm/llvm-project/pull/77252
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