From 11cbea852b0ae2b0f17a9caeaf6344d689231c2f Mon Sep 17 00:00:00 2001
From: Nathan Sidwell <nathan@acm.org>
Date: Wed, 13 Jan 2021 05:13:12 -0800
Subject: [PATCH] c++: Fix cp_build_function_call_vec [PR 98626]

I misunderstood the cp_build_function_call_vec API, thinking a NULL
vector was an acceptable way of passing no arguments.  You need to
pass a vector of no elements.

	PR c++/98626
	gcc/cp/
	* module.cc (module_add_import_initializers):  Pass a
	zero-element argument vector.
---
 gcc/cp/module.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/cp/module.cc b/gcc/cp/module.cc
index d2093916c9e..1fd0bcfe3eb 100644
--- a/gcc/cp/module.cc
+++ b/gcc/cp/module.cc
@@ -18977,8 +18977,8 @@ module_add_import_initializers ()
   if (modules)
     {
       tree fntype = build_function_type (void_type_node, void_list_node);
-      vec<tree, va_gc> *args = NULL;
-      
+      releasing_vec args;  // There are no args
+
       for (unsigned ix = modules->length (); --ix;)
 	{
 	  module_state *import = (*modules)[ix];
-- 
2.30.2