gcc/gcc41-pr20880.patch
Jakub Jelinek e198454f27 4.1.2-28
2007-09-25 16:09:05 +00:00

60 lines
1.5 KiB
Diff

2006-11-24 Paul Thomas <pault@gcc.gnu.org>
PR fortran/20880
* parse.c (parse_interface): Error if procedure name is that of
encompassing scope.
* gfortran.dg/interface_3a.f90: New test.
--- gcc/fortran/parse.c (revision 119172)
+++ gcc/fortran/parse.c (revision 119173)
@@ -1694,6 +1694,7 @@ parse_interface (void)
gfc_interface_info save;
gfc_state_data s1, s2;
gfc_statement st;
+ locus proc_locus;
accept_statement (ST_INTERFACE);
@@ -1781,6 +1782,7 @@ loop:
accept_statement (st);
prog_unit = gfc_new_block;
prog_unit->formal_ns = gfc_current_ns;
+ proc_locus = gfc_current_locus;
decl:
/* Read data declaration statements. */
@@ -1796,8 +1798,15 @@ decl:
current_interface = save;
gfc_add_interface (prog_unit);
-
pop_state ();
+
+ if (current_interface.ns
+ && current_interface.ns->proc_name
+ && strcmp (current_interface.ns->proc_name->name,
+ prog_unit->name) == 0)
+ gfc_error ("INTERFACE procedure '%s' at %L has the same name as the "
+ "enclosing procedure", prog_unit->name, &proc_locus);
+
goto loop;
done:
--- gcc/testsuite/gfortran.dg/interface_3a.f90
+++ gcc/testsuite/gfortran.dg/interface_3a.f90
@@ -0,0 +1,13 @@
+! { dg-do compile }
+! Contributed by Joost VandeVondele <jv244@cam.ac.uk>
+!
+! This was found whilst investigating => segfault
+subroutine thy_sub (a)
+ interface
+ subroutine thy_sub (a) ! { dg-error "enclosing procedure" }
+ real a
+ end subroutine
+ end interface
+ real a
+ print *, a
+end subroutine