[Bug c++/114170] New: [modules] error streaming in header unit with instantiated variable template with non-trivial initializer

[ppalka at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114170

            Bug ID: 114170
           Summary: [modules] error streaming in header unit with
                    instantiated variable template with non-trivial
                    initializer
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ppalka at gcc dot gnu.org
  Target Milestone: ---

$ cat testcase.H
inline int f() { return 42; }

template<class>
inline int v = f();

inline int g() { return v<int>; }

$ cat testcase.C
import "testcase.H";

int main() {
  return v<int> != 42;
}

$ g++ -fmodules-ts testcase.{H,C}
In module imported at testcase.C:1:1:
testcase.H: error: failed to read compiled module: Bad file data
testcase.H: note: compiled module file is ‘gcm.cache/,/testcase.H.gcm’
testcase.H: fatal error: returning to the gate for a mechanical issue