https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104493
Bug ID: 104493
Summary: OpenMP offload map cannot handle const
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: xw111luoye at gmail dot com
Target Milestone: ---
See reproducer
https://github.com/ye-luo/openmp-target/blob/master/tests/map/struct_with_const.cpp
$ g++ -fopenmp -foffload=nvptx-none struct_with_const.cpp
struct_with_const.cpp: In constructor ‘with_const::with_const()’:
struct_with_const.cpp:9:42: error: array section does not have mappable type in
‘map’ clause
9 | #pragma omp target enter data map(to:this[:1])
| ^~~~
struct_with_const.cpp:12:24: note: static field ‘with_const::size’ is not
mappable
12 | constexpr static int size = 6;
| ^~~~
struct_with_const.cpp:13:20: note: static field ‘with_const::b’ is not mappable
13 | static const int b = 12;
| ^
In file included from
/soft/gcc/gcc-12-dev-2022-02-10/include/c++/12.0.1/string:53,
from
/soft/gcc/gcc-12-dev-2022-02-10/include/c++/12.0.1/bits/locale_classes.h:40,
from
/soft/gcc/gcc-12-dev-2022-02-10/include/c++/12.0.1/bits/ios_base.h:41,
from
/soft/gcc/gcc-12-dev-2022-02-10/include/c++/12.0.1/ios:42,
from
/soft/gcc/gcc-12-dev-2022-02-10/include/c++/12.0.1/ostream:38,
from
/soft/gcc/gcc-12-dev-2022-02-10/include/c++/12.0.1/iostream:39,
from struct_with_const.cpp:1:
/soft/gcc/gcc-12-dev-2022-02-10/include/c++/12.0.1/bits/basic_string.h:140:33:
note: static field ‘std::__cxx11::basic_string<char>::npos’ is not mappable
140 | static const size_type npos = static_cast<size_type>(-1);
| ^~~~
struct_with_const.cpp:9:13: error: ‘#pragma omp target enter data’ must contain
at least one ‘map’ clause
9 | #pragma omp target enter data map(to:this[:1])
|
