19.1 (20.0) ICE with -check all flag

may_ka · ‎01-05-2020

Hi

FYI and helping to avoid overhours, the following code will produce an ICE

program test
  implicit none
  real, allocatable :: r11(:,:), r22(:,:), r12(:,:), rin(:,:), rout(:,:)
  rout=matmul((r11-matmul(r12,matmul(r22,transpose(r12)))),rin)
end program test

when compiled with Intel's latest 19.1 compiler shipped with parallel studio 20.0

ifort -check all -O0 tmp.f90

where the culprit is "-check all". The code compiles with 17.08, 19.04 and 19.05.

Ron_Green · ‎01-06-2020

I received a report on this in Premier Support and opened a bug report.

I will post when a fix is available.

Barbara_P_Intel · ‎10-13-2021

I just compiled your nice reproducer with the 2021.4.0 release of the Fortran compiler that is part of the oneAPI HPC Toolkit. No compiler error (ICE).

Can you please try it with this latest compiler release and let me know how it works for you?

$ cat > icer.f90
program test
  implicit none
  real, allocatable :: r11(:,:), r22(:,:), r12(:,:), rin(:,:), rout(:,:)
  rout=matmul((r11-matmul(r12,matmul(r22,transpose(r12)))),rin)
end program test
$ ifort -check all icer.f90
$