ifort segfault error, something to do with assumed shape arrays

[SounakBiswas]

My posts keep getting marked spam. Third attempt.

So I have been stumped with a segfault. Compiles with gfortran, with and w/o optimisations. With ifort it works only w/o optimizations ot w/o openmp.  I have tried usual tricks : increased OMP_STACKSIZE, compiled with -warn all and -check all flags. I payed special attention to interfaces  and the check arg_temp_created flag, and also fiddled arround with heap arrays with no avail. 

I have finally managed to strip down to an mwe (main.f90) which I attach. Would appreciate any help. 

compiler version: 2021.10.0 20230609 

mwe description:  Basically the mwe has an array (rank 3) from the main program passed to an intermediate subroutine, which in turn passes it on to a function which calculates a comples number. Fiddling around with some harmless looking loops and write statements seem to make the segfault go away sometimes, though valgrind seems to pretty consistently show 'invalid read' and invalid access warnings.  

this is my compile line :
ifort -o ALF.out -st08 -cpp -O3 -fp-model -fast=2 -xHost -unroll -finline-functions -ipo -ip  -heap-arrays 1024 -no-wrap-margin -g -parallel -qopenmp main.F90

I have attached my valgrind output

[Igor_V_Intel · Accepted solution]

I guess it is a duplicate of this thead: https://community.intel.com/t5/Intel-Fortran-Compiler/ifort-error-for-assumed-shape-arrays-possible-compiler-error

So we may close this one.

[SounakBiswas]

Thank you very much Igor. 

sorry for multiple posting. The other post was marked spam. 

Thanks again