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ICE for simple matmul expression, when checks are turned on

BalintAradi
Novice
209 Views

Dear developers,

 

the current ifort (2021.1 Beta 20201112, but also the 2020.x version) generates an internal compiler error when compiling the following code:

program showbug
  implicit none

  integer, parameter :: dp = kind(1.0d0)
  real(dp) :: cellMiddle(3), boxMiddle(3), frac(3)
  real(dp) :: recVecs2p(3,3)

  frac(:) = matmul(boxMiddle - cellMiddle, recVecs2p)

end program showbug

when compiling with

ifort -check ~/bug.f90

I obtain (on x86_64.Linux)

/home/aradi/bug.f90(8): catastrophic error: **Internal compiler error: internal abort** 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.
compilation aborted for /home/aradi/bug.f90 (code 1)

Interestingly, if I store the result of the subtraction in a temporary variable, the code compiles. The code also compiles, if I leave away the `-check` flag.

0 Kudos
1 Solution
Barbara_P_Intel
Moderator
166 Views

Thank you for reporting this.

I compiled your reproducer successfully with the current compiler 2021.5.0 that is part of oneAPI 2022.1 HPC Toolkit.

$ ifort -V -check showbug.f90
Intel(R) Fortran Intel(R) 64 Compiler Classic for applications running on Intel(R) 64, Version 2021.5.0 Build 20211109_000000
Copyright (C) 1985-2021 Intel Corporation.  All rights reserved.

 Intel(R) Fortran 2021.5.0-1068
GNU ld version 2.26.1-1.fc25
$ a.out
$

Can you install that and recompile?

 

 

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3 Replies
Barbara_P_Intel
Moderator
167 Views

Thank you for reporting this.

I compiled your reproducer successfully with the current compiler 2021.5.0 that is part of oneAPI 2022.1 HPC Toolkit.

$ ifort -V -check showbug.f90
Intel(R) Fortran Intel(R) 64 Compiler Classic for applications running on Intel(R) 64, Version 2021.5.0 Build 20211109_000000
Copyright (C) 1985-2021 Intel Corporation.  All rights reserved.

 Intel(R) Fortran 2021.5.0-1068
GNU ld version 2.26.1-1.fc25
$ a.out
$

Can you install that and recompile?

 

 

BalintAradi
Novice
149 Views

Thanks for the quick response! I can confirm, that with version 2021.5 the problem does not appear any more.

Barbara_P_Intel
Moderator
145 Views

That's GREAT!   Thanks for the reply!

Reply