[llvm-bugs] [Bug 49650] New: Declare variant should suppress warnings if the unused declaration has internal linkage

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=49650

            Bug ID: 49650
           Summary: Declare variant should suppress warnings if the unused
                    declaration has internal linkage
           Product: OpenMP
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Clang Compiler Support
          Assignee: unassignedclangbugs at nondot.org
          Reporter: jdoerfert at anl.gov
                CC: llvm-bugs at lists.llvm.org

The warning we see here (https://godbolt.org/z/PhPP9a)

```
#include <omp.h>

namespace {
void bar();
}

#pragma omp begin declare variant match(user={condition(1)})

void bar() {

}

#pragma omp end declare variant

void test() {
    bar();
}
```

should not be issued because the overload is picked.

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