https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120021
Bug ID: 120021
Summary: Offloading vs. C++ 'std::valarray'
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Keywords: openacc, openmp
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: tschwinge at gcc dot gnu.org
CC: burnus at gcc dot gnu.org, jakub at gcc dot gnu.org
Target Milestone: ---
A simple C++ 'std::valarray' code:
#include <valarray>
int main()
{
#pragma omp target
#pragma acc serial
{
std::valarray<double> v1 = {1.0, 2.0, 3.0, 4.0, 5.0};
}
return 0;
}
... fails OpenACC, OpenMP offloading compilation :
[...]/cxx-valarray-1.C:7:56: error: variable ‘C.0’ has been referenced in
offloaded code but hasn’t been marked to be included in the offloaded code
7 | std::valarray<double> v1 = {1.0, 2.0, 3.0, 4.0, 5.0};
| ^
I've not yet determined if this needs something like PR85063 "Support switch
conversion in offloading functions", or PR90779 "Fortran array initialization
in offload regions", or something else.
