Redirect reference in the symbol table (PR ipa/84833).

2018-03-16  Martin Liska  <mliska@suse.cz>

	PR ipa/84833
	* multiple_target.c (create_dispatcher_calls): Redirect
	reference in the symbol table.
2018-03-16  Martin Liska  <mliska@suse.cz>

	PR ipa/84833
	* gcc.target/i386/mvc11.c: New test.

From-SVN: r258596

gcc/ChangeLog

 2018-03-16  Martin Liska  <mliska@suse.cz>
 
+	PR ipa/84833
+	* multiple_target.c (create_dispatcher_calls): Redirect
+	reference in the symbol table.
+
+2018-03-16  Martin Liska  <mliska@suse.cz>
+
 	PR ipa/84722
 	* multiple_target.c (create_dispatcher_calls): Redirect also
 	an alias.

gcc/multiple_target.c

@@ -144,6 +144,10 @@ create_dispatcher_calls (struct cgraph_node *node)
 		  if (ref->referring->decl != resolver_decl)
 		    walk_gimple_stmt (&it, NULL, replace_function_decl, &wi);
 		}
+
+	      symtab_node *source = ref->referring;
+	      ref->remove_reference ();
+	      source->create_reference (inode, IPA_REF_ADDR);
 	    }
 	  else if (ref->use == IPA_REF_ALIAS)
 	    {

gcc/testsuite/ChangeLog

 2018-03-16  Martin Liska  <mliska@suse.cz>
 
+	PR ipa/84833
+	* gcc.target/i386/mvc11.c: New test.
+
+2018-03-16  Martin Liska  <mliska@suse.cz>
+
 	PR ipa/84722
 	* gcc.target/i386/mvc10.c: New test.
 

gcc/testsuite/gcc.target/i386/mvc11.c

+/* { dg-do run } */
+/* { dg-require-ifunc "" } */
+/* { dg-options "-std=gnu99" } */
+
+__attribute__((noipa)) int 
+baz (int (*fn) (void))
+{
+  asm volatile ("" : "+g" (fn) : : "memory");
+  return fn ();
+}
+
+__attribute__((target_clones("arch=sandybridge", "default"))) static int
+bar (void)
+{
+  return 1;
+}
+
+__attribute__((target_clones("arch=sandybridge", "default"))) int
+foo (void)
+{
+  baz (bar) - 1;
+}
+
+int
+main ()
+{
+  foo ();
+}