re PR fortran/36059 (-frepack-arrays: symbols w/ TARGET should not be repacked)

        PR fortran/36059

        * trans-decl.c (gfc_build_dummy_array_decl): Don't repack
        arrays that have the TARGET attribute.

        * gfortran.dg/repack_arrays_1.f90: New test.

From-SVN: r135310

gcc/fortran/ChangeLog

 2008-05-14  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
 
+	PR fortran/36059
+	* trans-decl.c (gfc_build_dummy_array_decl): Don't repack
+	arrays that have the TARGET attribute.
+
+2008-05-14  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
+
 	PR fortran/36186
 	* simplify.c (only_convert_cmplx_boz): New function.
 	(gfc_simplify_cmplx, gfc_simplify_complex, gfc_simplify_dcmplx):

gcc/fortran/trans-decl.c

@@ -733,7 +733,10 @@ gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy)
       /* Create a descriptorless array pointer.  */
       as = sym->as;
       packed = PACKED_NO;
-      if (!gfc_option.flag_repack_arrays)
+
+      /* Even when -frepack-arrays is used, symbols with TARGET attribute
+	 are not repacked.  */
+      if (!gfc_option.flag_repack_arrays || sym->attr.target)
 	{
 	  if (as->type == AS_ASSUMED_SIZE)
 	    packed = PACKED_FULL;

gcc/testsuite/ChangeLog

 2008-05-14  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
 
+	PR fortran/36059
+	* gfortran.dg/repack_arrays_1.f90: New test.
+
+2008-05-14  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
+
 	PR fortran/36186
 	* gfortran.dg/boz_11.f90: New test.
 	* gfortran.dg/boz_12.f90: New test.

gcc/testsuite/gfortran.dg/repack_arrays_1.f90

+! { dg-do run }
+! { dg-options "-frepack-arrays" }
+!
+! Check that arrays marked with TARGET attribute are not repacked.
+!
+program test2
+   use iso_c_binding
+   implicit none
+   real, target :: x(7)
+   type(c_ptr) cp1, cp2
+
+   x = 42
+   if (.not. c_associated(c_loc(x(3)),point(x(::2)))) call abort
+contains
+  function point(x)
+    use iso_c_binding
+    real, intent(in), target :: x(:)
+    type(c_ptr) point
+    real, pointer :: p
+
+    p => x(2)
+    point = c_loc(p)
+  end function point
+end program test2