Intrinsic MOD causes catastrophic error

[tplaakso]

Hi,

The following code;

[bash]program test
  real, dimension(:), allocatable :: a, b
  b = [1.0, 2.0, 3.0]
  a = mod(b, 2.0)
  print *, a
end program test
[/bash]

compiled using the latest compiler version in OSX, yields:

[bash]ifort -free -standard-semantics intel_mod_bug.f 
0_12459

: 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 intel_mod_bug.f (code 1)
[/bash]

The problem being the intrinsic MOD (other intrinsics, e.g., SQRT do not produce the error above).

Works well using gfortran.

Teemu Laakso

[TimP]

This appears to be a bug associated with -standard-semantics. I see the same problem with current ifort 12.1 64-bit on linux.

[tplaakso]

Thank you for this reply. Is there a bug report already on this?

The catastrophic error can be obviously circumvented by doing the MOD assignment element-wise.

Teemu

[Steven_L_Intel1]

There is a bug report - the issue ID is DPD200176248. The particular option that is involved is -assume realloc_lhs.

[Steven_L_Intel1]

This has been fixed for a future release.