Frontend bug: nvfortran rejects recursive type

Accelerated Computing HPC Compilers nvc, nvc++ and nvfortran
1 
 module test_mod
   implicit none
   type :: recursive_type
     type(recursive_type), allocatable :: previous
   end type recursive_type
 end module test_mod

The code above is rejected by nvfortran

$ nvfortran --version

nvfortran 26.5-0 64-bit target on x86-64 Linux -tp icelake-server 
NVIDIA Compilers and Tools
Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES.  All rights reserved.
$ nvfortran -c test.f90 
NVFORTRAN-S-0155-Derived type component must have the POINTER attribute - previous (test.f90: 4)
  0 inform,   0 warnings,   1 severes, 0 fatal for test_mod

However, that code is accepted by other compilers, including NAG (known for its strict standard compliance)

$ nagfor -c test.f90 
NAG Fortran Compiler Release 7.2(Shin-Urayasu) Build 7200
[NAG Fortran Compiler normal termination]
2

Thanks for the report Henri!

I’ve filed an issue report, TPR #38740, and sent it to engineering for investigation.

-Mat