re PR fortran/71085 (ICE with some intrinsic functions specifying array function result dimension)

2018-03-03  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/71085
	* trans-expr.c (gfc_apply_interface_mapping_to_expr): Do not
	dereference NULL pointer.


2018-03-03  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/71085
	* gfortran.dg/pr71085.f90: New test.

From-SVN: r258228

gcc/fortran/ChangeLog

+2018-03-03  Harald Anlauf  <anlauf@gmx.de>
+
+	PR fortran/71085
+	* trans-expr.c (gfc_apply_interface_mapping_to_expr): Do not
+	dereference NULL pointer.
+
 2018-03-03  Steven G. Kargl  <kargl@gcc.gnu.org>
 
 	PR fortran/66128

gcc/fortran/trans-expr.c

@@ -4349,6 +4349,8 @@ gfc_apply_interface_mapping_to_expr (gfc_interface_mapping * mapping,
 
       if (expr->value.function.esym == NULL
 	    && expr->value.function.isym != NULL
+	    && expr->value.function.actual
+	    && expr->value.function.actual->expr
 	    && expr->value.function.actual->expr->symtree
 	    && gfc_map_intrinsic_function (expr, mapping))
 	break;

gcc/testsuite/ChangeLog

+2018-03-03  Harald Anlauf  <anlauf@gmx.de>
+
+	PR fortran/71085
+	* gfortran.dg/pr71085.f90: New test.
+
 2018-03-03  Steven G. Kargl  <kargl@gcc.gnu.org>
 
 	PR fortran/66128

gcc/testsuite/gfortran.dg/pr71085.f90

+! { dg-do compile }
+! PR 71085
+!
+! Testcase from PR by Vladimir Fuka <vladimir.fuka@gmail.com>
+!
+program pr71085
+  print *, f()
+contains
+  function f()
+    integer :: f(iargc()*10)
+  end
+end