re PR fortran/55638 (Wrongly accepts INTENT + VALUE - and wrongly requires it for PURE)

2012-12-16  Tobias Burnus  <burnus@net-b.de>

        PR fortran/55638
        * resolve.c (resolve_formal_arglist): Allow VALUE without
        INTENT for ELEMENTAL procedures.

2012-12-16  Tobias Burnus  <burnus@net-b.de>

        PR fortran/55638
        * gfortran.dg/elemental_args_check_3.f90: Update dg-error.
        * gfortran.dg/elemental_args_check_7.f90: New.

From-SVN: r194525

gcc/fortran/ChangeLog

+2012-12-16  Tobias Burnus  <burnus@net-b.de>
+
+	PR fortran/55638
+	* resolve.c (resolve_formal_arglist): Allow VALUE without
+	INTENT for ELEMENTAL procedures.
+
 2012-12-10  Janus Weil  <janus@gcc.gnu.org>
 
 	PR fortran/52909
@@ -5,8 +11,8 @@
 
 2012-12-09  Tobias Burnus  <burnus@net-b.de>
 
-	* trans-array.c (gfc_deallocate_scalar_with_status): Use
-	NULL_TREE in the call to gfc_deallocate_scalar_with_status.
+	* trans-array.c (structure_alloc_comps): Use NULL_TREE in the
+	call to gfc_deallocate_scalar_with_status.
 	* trans-decl.c (gfc_trans_deferred_vars): Pass symbol.
 	* trans-stmt.c (gfc_trans_deallocate): Pass polymorphic variable.
 

gcc/fortran/resolve.c

@@ -488,10 +488,12 @@ resolve_formal_arglist (gfc_symbol *proc)
 	      continue;
 	    }
 
-	  if (sym->attr.intent == INTENT_UNKNOWN)
+	  /* Fortran 2008 Corrigendum 1, C1290a.  */
+	  if (sym->attr.intent == INTENT_UNKNOWN && !sym->attr.value)
 	    {
 	      gfc_error ("Argument '%s' of elemental procedure '%s' at %L must "
-			 "have its INTENT specified", sym->name, proc->name,
+			 "have its INTENT specified or have the VALUE "
+			 "attribute", sym->name, proc->name,
 			 &sym->declared_at);
 	      continue;
 	    }

gcc/testsuite/ChangeLog

+2012-12-16  Tobias Burnus  <burnus@net-b.de>
+
+	PR fortran/55638
+	* gfortran.dg/elemental_args_check_3.f90: Update dg-error.
+	* gfortran.dg/elemental_args_check_7.f90: New.
+
 2012-12-15  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* lib/scanasm.exp (get_ada_spec_filename): Use procedural form.

gcc/testsuite/gfortran.dg/elemental_args_check_3.f90

@@ -13,7 +13,7 @@ CONTAINS
     (a, & ! { dg-error "must be scalar" }
      b, & ! { dg-error "POINTER attribute" }
      c, & ! { dg-error "ALLOCATABLE attribute" }
-     d) ! { dg-error "INTENT specified" }
+     d) ! { dg-error "must have its INTENT specified or have the VALUE attribute" }
     INTEGER, INTENT(IN) :: a(:)
     INTEGER, POINTER, INTENT(IN) :: b
     INTEGER, ALLOCATABLE, INTENT(IN) :: c

gcc/testsuite/gfortran.dg/elemental_args_check_7.f90

+! { dg-do compile }
+!
+! PR fortran/55638
+!
+! Additionally, VALUE no INTENT is required (and only "intent(in)" allowed)
+!
+
+  elemental subroutine foo(x, y, z)
+    integer, intent(inout) :: x
+    integer, VALUE :: y
+    integer, VALUE, intent(in) :: z
+    x = y
+  end subroutine foo
+
+  impure elemental subroutine foo2(x, y, z) ! { dg-error "Argument 'x' of elemental procedure 'foo2' at .1. must have its INTENT specified or have the VALUE attribute" }
+    integer :: x 
+    integer, VALUE :: y
+    integer, VALUE :: z
+    x = y
+  end subroutine foo2
+
+  subroutine foo3(x, y, z)
+    integer, VALUE, intent(in) :: x
+    integer, VALUE, intent(inout) :: y ! { dg-error "VALUE attribute conflicts with INTENT.INOUT. attribute" }
+    integer, VALUE, intent(out) :: z ! { dg-error "VALUE attribute conflicts with INTENT.OUT. attribute" }
+  end subroutine foo3