Fortran: Fix calls to associate name typebound subroutines [PR98897].

2021-02-11  Paul Thomas  <pault@gcc.gnu.org>

gcc/fortran
	PR fortran/98897
	* match.c (gfc_match_call): Include associate names as possible
	entities with typebound subroutines. The target needs to be
	resolved for the type.

gcc/testsuite/
	PR fortran/98897
	* gfortran.dg/typebound_call_32.f90: New test.

diff --git a/gcc/fortran/match.c b/gcc/fortran/match.c
index f0469e25da661569ddf66d1a472d527d9e2ee2b5..2df6191d7e6809f4d3d53f151ff6dc2a43fbe02f 100644 (file)
--- a/gcc/fortran/match.c
+++ b/gcc/fortran/match.c
@@ -4999,10 +4999,16 @@ gfc_match_call (void)
   sym = st->n.sym;
 
   /* If this is a variable of derived-type, it probably starts a type-bound
-     procedure call.  */
-  if ((sym->attr.flavor != FL_PROCEDURE
-       || gfc_is_function_return_value (sym, gfc_current_ns))
-      && (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS))
+     procedure call. Associate variable targets have to be resolved for the
+     target type.  */
+  if (((sym->attr.flavor != FL_PROCEDURE
+       || gfc_is_function_return_value (sym, gfc_current_ns))
+       && (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS))
+               ||
+      (sym->assoc && sym->assoc->target
+       && gfc_resolve_expr (sym->assoc->target)
+       && (sym->assoc->target->ts.type == BT_DERIVED
+          || sym->assoc->target->ts.type == BT_CLASS)))
     return match_typebound_call (st);
 
   /* If it does not seem to be callable (include functions so that the

diff --git a/gcc/testsuite/gfortran.dg/typebound_call_32.f90 b/gcc/testsuite/gfortran.dg/typebound_call_32.f90
new file mode 100644 (file)
index 0000000..88ddae4
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/typebound_call_32.f90
@@ -0,0 +1,39 @@
+! { dg-do run }
+!
+! Test the fix for PR98897 in which typebound subroutines of associate names
+! were not recognised in a call. Functions were OK but this is tested below.
+!
+! Contributed by Damian Rouson  <damian@sourceryinstitute.org>
+!
+module output_data_m
+  implicit none
+
+  type output_data_t
+    integer, private :: i = 0
+  contains
+    procedure output, return_value
+  end type
+
+
+contains
+  subroutine output(self)
+      implicit none
+      class(output_data_t) self
+      self%i = 1234
+  end subroutine
+
+  integer function return_value(self)
+      implicit none
+      class(output_data_t) self
+      return_value = self%i
+  end function
+end module
+
+  use output_data_m
+  implicit none
+  associate(output_data => output_data_t())
+    call output_data%output
+    if (output_data%return_value() .ne. 1234) stop 1
+  end associate
+end
+