PGF90-F-0000-Internal compiler error. Errors in Lowering

Accelerated Computing HPC Compilers Legacy PGI Compilers
1

There is a bug in the entire 12.x series of fortran compilers up to and including 12.8-1
which fails to compile one of the modules in our CASTEP electronic structure code.
Fortunately it has been easy to distil a simple testcase to demonstrate the problem.

Please will someone file a bug report for this.

The error returned is

$ pgf90 -V

pgf90 12.8-1 64-bit target on x86-64 Linux -tp nehalem

$ pgf90 -c lowering.f90

Lowering Error: symbol ip$sd is an inconsistent array descriptor
PGF90-F-0000-Internal compiler error. Errors in Lowering 1 (lowering.f90: 29)


module c

type u
   integer nums
   integer, dimension(:), allocatable  :: numis
   real, dimension(:,:), allocatable :: ip
end type u

integer :: num_cells

contains

subroutine ctest(cell, sc, scv)

implicit none

type(u), intent(in) :: cell
type(u), intent(inout) :: sc
real, dimension(:,:), intent(in) :: scv
real, dimension(3,3)  :: scm

integer :: ni, nj

   do ni=1,10
      nj = ni
      sc%ip(:,nj)= matmul(scm, cell%ip(:,ni) + scv(1,:))
   end do
    
end subroutine ctest
end module c

Keith Refson

2

Hi Keith,

Thanks for the example code. I was able to reproduce the error in 12.8 and confirmed that it appears to be the same as a known issue (TPR#18925). The good news is that the error has been fixed in 12.9 which was just released last week.

Do you mind downloading 12.9 to see if it fixes your issue as well?

Best Regards,
Mat

3

Thanks Mat. I now have 12.9 installed and can confirm that this fixes this error, not just in my boiled down example but in the CASTEP code too.