gcc/testsuite/gfortran.dg/realloc_on_assign_18.f90

   1 ! { dg-do compile }
   2 ! { dg-options "-fdump-tree-original" }
   3 !
   4 ! Ensure that for zero-sized array, nonzero memory is allocated
   5 !
   6 type t
   7 end type t
   8
   9 type(t), allocatable :: x, y(:)
  10
  11 x = t()
  12 y = [ t :: ]
  13
  14 if (.not. allocated (x)) STOP 1
  15 if (.not. allocated (y)) STOP 2
  16 end
  17
  18 ! { dg-final { scan-tree-dump "x = \\(struct t .\\) __builtin_malloc \\(1\\);" "original" } }
  19 ! { dg-final { scan-tree-dump "y.data = \\(void . restrict\\) __builtin_malloc \\(1\\);" "original" } }