re PR fortran/71783 (ICE on valid code in gimplify_var_or_parm_decl at gimplify.c:1801)

2016-07-09  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/71783
	* frontend-passes.c (create_var):  Always allocate a charlen
	for character variables.

2016-07-09  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/71783
	* gfortran.dg/dependency_46.f90:  New test.

From-SVN: r238192

gcc/fortran/ChangeLog

+2016-07-09  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	PR fortran/71783
+	* frontend-passes.c (create_var):  Always allocate a charlen
+	for character variables.
+
 2016-07-08  Steven G. Kargl  <kargl@gcc.gnu.org>
 
 	PR fortran/68426

gcc/fortran/frontend-passes.c

@@ -665,12 +665,10 @@ create_var (gfc_expr * e, const char *vname)
     {
       gfc_expr *length;
 
+      symbol->ts.u.cl = gfc_new_charlen (ns, NULL);
       length = constant_string_length (e);
       if (length)
-	{
-	  symbol->ts.u.cl = gfc_new_charlen (ns, NULL);
-	  symbol->ts.u.cl->length = length;
-	}
+	symbol->ts.u.cl->length = length;
       else
 	symbol->attr.allocatable = 1;
     }

gcc/testsuite/ChangeLog

+2016-07-09  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	PR fortran/71783
+	* gfortran.dg/dependency_46.f90:  New test.
+
 2016-07-08  Vladimir Makarov  <vmakarov@redhat.com>
 
 	PR rtl-optimization/71621

gcc/testsuite/gfortran.dg/dependency_46.f90

+! { dg-do compile }
+! PR 71783 - this used to ICE due to a missing charlen for the temporary.
+! Test case by Toon Moene.
+
+SUBROUTINE prtdata(ilen)
+  INTEGER :: ilen
+  character(len=ilen), allocatable :: cline(:)
+  allocate(cline(2))
+  cline(1) = 'a'
+  cline(2) = cline(1)
+END SUBROUTINE prtdata