topic Re: INTERNAL COMPILER ERROR: allocatable and contiguous arguments in submodule implmenetation in Intel® Fortran Compiler

INTERNAL COMPILER ERROR: allocatable and contiguous arguments in submodule implmenetation

DataScientist — Wed, 26 Jan 2022 18:38:21 GMT

Intel ifort 2021.4 cannot compile the following module and submodule, where the procedure interface is separated from the implementation.

module lower_bound interface lower module subroutine test_lower(array, indices) integer, intent(inout), allocatable :: array(:) integer, intent(in), contiguous :: indices(lbound(array,1):) end subroutine test_lower end interface end module lower_bound

submodule (lower_bound) smod contains module procedure test_lower end procedure end submodule smod

Note that the issue appears to be entirely due to the specification of the lower bound for the input argument INDICES: indices(lbound(array,1):).

Given the nature of the error message:

catastrophic error: **Internal compiler error: segmentation violation signal raised** Please report this error along with the circumstances in which it occurred in a Software Problem Report. Note: File and line given may not be explicit cause of this error.

this appears to be a compiler bug unless someone can prove it otherwise.

To reproduce the bug, compile with

ifort lower_bound.f90 lower_bound@smod.f90 -c

gfortran 10.3 has no problem compiling and running the code.

Re: INTERNAL COMPILER ERROR: allocatable and contiguous arguments in submodule implmenetation

Ron_Green — Wed, 26 Jan 2022 16:11:49 GMT

yes, definitely a bug. We will create a bug report. Thank you for sending this in, timely too since I'm reviewing open issues against submodules. it's been one of my interest areas.

ron

Re: INTERNAL COMPILER ERROR: allocatable and contiguous arguments in submodule implmenetation

Devorah_H_Intel — Wed, 26 Jan 2022 18:31:44 GMT

This has been escalated to engineering CMPLRIL0-34555

Thanks for reporting the issue.

Re: INTERNAL COMPILER ERROR: allocatable and contiguous arguments in submodule implmenetation

DataScientist — Wed, 26 Jan 2022 18:37:17 GMT

fantastic, Thank you.