Another day... another ICE

[OP1]

The code below triggers an ICE with ifort 2021.6.0 and ifx 2022.1.0 (both debug or release, x64). Yes I know it does not make sense to compile a submodule on its own when the ancestor module is nowhere to be found ... still, this is an ICE.

SUBMODULE (M) T
IMPLICIT NONE (TYPE, EXTERNAL)
CONTAINS
MODULE SUBROUTINE T(U)
PROCEDURE(P) :: U
END SUBROUTINE T
END SUBMODULE T

[Barbara_P_Intel]

You're keeping me busy! I filed CMPLRLLVM-37573 for you.

[Barbara_P_Intel]

This ICE is melted with the Fortran compilers released in December as part of oneAPI HPC Toolkit 2023.0. Please give it a try!