Gfortran ICE with submodules: module procedure interface defined in parent module (bug report 79402)

[Stefano Zaghi]

Dear gfortran team,

I have just created a bug report 79402,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79402

I am writing on the behalf of Chris Coutinho who cannot create a
bugzilla account.

GNU gfortran generates and ICE when a submodule implementation of a
procedure inherits its signature from the parent module by means of
the "module procedure" syntax.

In the "gfortran_ice_submodule.f90" file attached to the bug report
there is a minimal example raising the ICE (Arch Linux, 4.8.13-1-ARCH
#1 SMP PREEMPT) with both 6.3.1 and development trunk 7.0.0 (I have
not yet installed 7.0.1 version). If you comment lines 24-26 and
un-comment lines 17-22 the program runs as expected.

Our best regards.

Stefano Zaghi  Ph.D. Aerospace Engineer

Research Scientist, Dept. of Computational Hydrodynamics at CNR-INSEAN
p: +39 0650299260 | m: +39 3497730036 | e: stefano.zaghi@gmail.com

Member of Fortran-FOSS-Programmers

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