[Bug fortran/94070] Assumed-rank arrays – bounds mishandled, SIZE/SHAPE/UBOUND/LBOUND

[burnus at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94070

--- Comment #6 from Tobias Burnus <burnus at gcc dot gnu.org> ---
Some bound issues were fixed with PR99043 – but my bet is that the BIND(C)
issues still exist. (→ testcase (C + Fortran) attached to this PR).

 * * *

Additionally: PR 94020 (duplicate of this PR) with attachment 47960 seems to be
mostly fixed, however for the following case, the result is wrong.

if 'lb' (or second argument to 'foo') is >= 0, size2 == 0 – otherwise, size2 >
0'.

Expected:
   same result as for PRODUCT(SHAPE(ARRAY,KIND))
   (→ 16.9.179  SIZE (ARRAY [, DIM, KIND]))
That is:
  lb =   5 → shape = [5 -1] → -5
  lb = -12 → shape = [5 - 1] → -5

implicit none
integer :: A(5,5)
call foo(a,-12)
call foo(a,0)
call foo(a,5)
contains
subroutine foo(x,lb)
  integer :: lb
  integer :: x(5,lb:*)
  print *, size2(x)
  if (size2(x) /= -5) stop 1
end
integer function size2(y)
  integer :: y(..)
  size2 = size(y)
end
end