diff -rupN --no-dereference binutils-2.32/libiberty/cp-demangle.c binutils-2.32-new/libiberty/cp-demangle.c
--- binutils-2.32/libiberty/cp-demangle.c	2019-01-19 17:01:34.000000000 +0100
+++ binutils-2.32-new/libiberty/cp-demangle.c	2019-11-19 20:47:08.574628396 +0100
@@ -861,7 +861,7 @@ CP_STATIC_IF_GLIBCPP_V3
 int
 cplus_demangle_fill_name (struct demangle_component *p, const char *s, int len)
 {
-  if (p == NULL || s == NULL || len == 0)
+  if (p == NULL || s == NULL || len <= 0)
     return 0;
   p->d_printing = 0;
   p->type = DEMANGLE_COMPONENT_NAME;
@@ -4055,7 +4055,7 @@ d_growable_string_callback_adapter (cons
    are larger than the actual numbers encountered.  */
 
 static void
-d_count_templates_scopes (int *num_templates, int *num_scopes,
+d_count_templates_scopes (struct d_print_info *dpi,
 			  const struct demangle_component *dc)
 {
   if (dc == NULL)
@@ -4075,13 +4075,13 @@ d_count_templates_scopes (int *num_templ
       break;
 
     case DEMANGLE_COMPONENT_TEMPLATE:
-      (*num_templates)++;
+      dpi->num_copy_templates++;
       goto recurse_left_right;
 
     case DEMANGLE_COMPONENT_REFERENCE:
     case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
       if (d_left (dc)->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM)
-	(*num_scopes)++;
+	dpi->num_saved_scopes++;
       goto recurse_left_right;
 
     case DEMANGLE_COMPONENT_QUAL_NAME:
@@ -4146,42 +4146,42 @@ d_count_templates_scopes (int *num_templ
     case DEMANGLE_COMPONENT_TAGGED_NAME:
     case DEMANGLE_COMPONENT_CLONE:
     recurse_left_right:
-      d_count_templates_scopes (num_templates, num_scopes,
-				d_left (dc));
-      d_count_templates_scopes (num_templates, num_scopes,
-				d_right (dc));
+      /* PR 89394 - Check for too much recursion.  */
+      if (dpi->recursion > DEMANGLE_RECURSION_LIMIT)
+	/* FIXME: There ought to be a way to report to the
+	   user that the recursion limit has been reached.  */
+	return;
+
+      ++ dpi->recursion;
+      d_count_templates_scopes (dpi, d_left (dc));
+      d_count_templates_scopes (dpi, d_right (dc));
+      -- dpi->recursion;
       break;
 
     case DEMANGLE_COMPONENT_CTOR:
-      d_count_templates_scopes (num_templates, num_scopes,
-				dc->u.s_ctor.name);
+      d_count_templates_scopes (dpi, dc->u.s_ctor.name);
       break;
 
     case DEMANGLE_COMPONENT_DTOR:
-      d_count_templates_scopes (num_templates, num_scopes,
-				dc->u.s_dtor.name);
+      d_count_templates_scopes (dpi, dc->u.s_dtor.name);
       break;
 
     case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
-      d_count_templates_scopes (num_templates, num_scopes,
-				dc->u.s_extended_operator.name);
+      d_count_templates_scopes (dpi, dc->u.s_extended_operator.name);
       break;
 
     case DEMANGLE_COMPONENT_FIXED_TYPE:
-      d_count_templates_scopes (num_templates, num_scopes,
-                                dc->u.s_fixed.length);
+      d_count_templates_scopes (dpi, dc->u.s_fixed.length);
       break;
 
     case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
     case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
-      d_count_templates_scopes (num_templates, num_scopes,
-				d_left (dc));
+      d_count_templates_scopes (dpi, d_left (dc));
       break;
 
     case DEMANGLE_COMPONENT_LAMBDA:
     case DEMANGLE_COMPONENT_DEFAULT_ARG:
-      d_count_templates_scopes (num_templates, num_scopes,
-				dc->u.s_unary_num.sub);
+      d_count_templates_scopes (dpi, dc->u.s_unary_num.sub);
       break;
     }
 }
@@ -4216,8 +4216,12 @@ d_print_init (struct d_print_info *dpi,
   dpi->next_copy_template = 0;
   dpi->num_copy_templates = 0;
 
-  d_count_templates_scopes (&dpi->num_copy_templates,
-			    &dpi->num_saved_scopes, dc);
+  d_count_templates_scopes (dpi, dc);
+  /* If we did not reach the recursion limit, then reset the
+     current recursion value back to 0, so that we can print
+     the templates.  */
+  if (dpi->recursion < DEMANGLE_RECURSION_LIMIT)
+    dpi->recursion = 0;
   dpi->num_copy_templates *= dpi->num_saved_scopes;
 
   dpi->current_template = NULL;