re PR fortran/34848 (internal compiler error with optional argument of character…

re PR fortran/34848 (internal compiler error with optional argument of character type and array return type)

2008-01-22  Tobias Burnus  <burnus@net-b.de>

       PR fortran/34848
       * interface.c (compare_actual_formal): Fix adding type
       to missing_arg_type for absent optional arguments.

2008-01-22  Tobias Burnus  <burnus@net-b.de>

       PR fortran/34848
       * gfortran.dg/missing_optional_dummy_4.f90

From-SVN: r131738

gcc/fortran/ChangeLog

 2008-01-22  Tobias Burnus  <burnus@net-b.de>
 
+	PR fortran/34848
+	* interface.c (compare_actual_formal): Fix adding type
+	to missing_arg_type for absent optional arguments.
+
+2008-01-22  Tobias Burnus  <burnus@net-b.de>
+
 	PR fortran/34907
 	* parse.c (parse_spec): Change = into ==.
 

gcc/fortran/interface.c

@@ -2147,7 +2147,7 @@ compare_actual_formal (gfc_actual_arglist **ap, gfc_formal_arglist *formal,
     *ap = new[0];
 
   /* Note the types of omitted optional arguments.  */
-  for (a = actual, f = formal; a; a = a->next, f = f->next)
+  for (a = *ap, f = formal; a; a = a->next, f = f->next)
     if (a->expr == NULL && a->label == NULL)
       a->missing_arg_type = f->sym->ts.type;
 

gcc/testsuite/ChangeLog

+2008-01-22  Tobias Burnus  <burnus@net-b.de>
+
+	PR fortran/34848
+	* gfortran.dg/missing_optional_dummy_4.f90
+
 2008-01-22  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
 	* gcc.dg/vect/vect-ifcvt-9.c: Use inline.

gcc/testsuite/gfortran.dg/missing_optional_dummy_4.f90

+! { dg-do compile }
+! { dg-options "-fdump-tree-original" }
+!
+! PR fortran/34848
+! 
+! The "0" for the string size of the absent optional
+! argument was missing.
+!
+module krmod
+contains
+ subroutine doit()
+   implicit none
+    real :: doit1
+    doit1 = tm_doit()
+   return
+ end subroutine doit
+ function tm_doit(genloc)
+   implicit none
+   character, optional  :: genloc
+   real :: tm_doit
+   tm_doit = 42.0 
+ end function tm_doit
+end module krmod
+
+! { dg-final { scan-tree-dump " tm_doit \\(0B, 0\\);" "original" } }
+! { dg-final { cleanup-tree-dump "original" } }
+! { dg-final { cleanup-modules "krmod" } }
+