re PR c++/89105 (-Wabi warns for functions with internal linkage)

	PR c++/89105
	* config/i386/i386.c (ix86_warn_parameter_passing_abi): Don't warn
	for arguments to functions that are TU-local and shouldn't be
	referenced by assembly.

	* g++.target/i386/pr89105.C: New test.

From-SVN: r268382

gcc/ChangeLog

+2019-01-30  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/89105
+	* config/i386/i386.c (ix86_warn_parameter_passing_abi): Don't warn
+	for arguments to functions that are TU-local and shouldn't be
+	referenced by assembly.
+
 2019-01-30  Ulrich Drepper  <drepper@redhat.com>
 
 	* dumpfile.c (opt_info_switch_p_1): Ignore '-' if it appears

gcc/config/i386/i386.c

@@ -29562,6 +29562,10 @@ ix86_warn_parameter_passing_abi (cumulative_args_t cum_v, tree type)
   if (!TYPE_EMPTY_P (type))
     return;
 
+  /* Don't warn if the function isn't visible outside of the TU.  */
+  if (cum->decl && !TREE_PUBLIC (cum->decl))
+    return;
+
   const_tree ctx = get_ultimate_context (cum->decl);
   if (ctx != NULL_TREE
       && !TRANSLATION_UNIT_WARN_EMPTY_P (ctx))

gcc/testsuite/ChangeLog

 2019-01-30  Jakub Jelinek  <jakub@redhat.com>
 
+	PR c++/89105
+	* g++.target/i386/pr89105.C: New test.
+
 	PR c/89061
 	* gcc.dg/pr89061.c: New test.
 

gcc/testsuite/g++.target/i386/pr89105.C

+// PR c++/89105
+// { dg-do compile { target c++11 } }
+// { dg-options "-fabi-version=12 -Wabi=11" }
+
+namespace {
+  template<typename F>
+    void run(F f, int i)	// { dg-bogus "parameter passing ABI changes in -fabi-version=12" }
+    {
+      f(i);
+    }
+}
+
+void f()
+{
+  run([](int) { }, 1);		// { dg-bogus "parameter passing ABI changes in -fabi-version=12" }
+}