Flang does not currently support lowering for the abort intrinsic procedure. This is a commonly supported extension in Fortran. Reproducer: ```fortran subroutine ab call abort end subroutine ``` Currently the following TODO message is printed by Flang. `IntrinsicCall.cpp:1415: not yet implemented missing intrinsic lowering: abort` We need support for this intrinsic procedure to enable `521.wrf_r`