re PR fortran/92017 (ICE in gfc_expr_attr, at fortran/primary.c:2674)

2019-10-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/92017
	* expr.c (simplify_parameter_variable): Set the character length
	of the result expression from the original expression if
	necessary.

2019-10-13  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/92017
	* gfortran.dg/minmaxloc_14.f90: New test.

From-SVN: r276938

gcc/fortran/ChangeLog

+2019-10-13  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	PR fortran/92017
+	* expr.c (simplify_parameter_variable): Set the character length
+	of the result expression from the original expression if
+	necessary.
+
 2019-10-11  Steven G. Kargl  <kargl@gcc.gnu.org>
 
 	PR fortran/91649

gcc/fortran/expr.c

@@ -2066,6 +2066,9 @@ simplify_parameter_variable (gfc_expr *p, int type)
 
   e->rank = p->rank;
 
+  if (e->ts.type == BT_CHARACTER && e->ts.u.cl == NULL)
+    e->ts.u.cl = gfc_new_charlen (gfc_current_ns, p->ts.u.cl);
+
   /* Do not copy subobject refs for constant.  */
   if (e->expr_type != EXPR_CONSTANT && p->ref != NULL)
     e->ref = gfc_copy_ref (p->ref);

gcc/testsuite/ChangeLog

+2019-10-13  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	PR fortran/92017
+	* gfortran.dg/minmaxloc_14.f90: New test.
+
 2019-10-13  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* lib/target-supports.exp (add_options_for_c99_runtime): Remove.

gcc/testsuite/gfortran.dg/minmaxloc_14.f90

+! { dg-do compile }
+! PR 92017 - this used to cause an ICE due do a missing charlen.
+! Original test case by Gerhard Steinmetz.
+
+program p
+  character(3), parameter :: a(4) = 'abc'
+  integer, parameter :: b(1) = minloc(a)
+  integer, parameter :: c = minloc(a, dim=1)
+  integer, parameter :: bb(1) = maxloc(a)
+  integer, parameter :: c2 = maxloc(a,dim=1)
+end program p
+