tree-sra.c (convert_callers): New parameter, change fndecls of recursive calls.

2010-06-26  Martin Jambor  <mjambor@suse.cz>

	* tree-sra.c (convert_callers): New parameter, change fndecls of
	recursive calls.
	(modify_function): Pass the old decl to convert_callers.

	* testsuite/gcc.dg/ipa/ipa-sra-6.c: New test.

From-SVN: r161503

gcc/ChangeLog

 2010-06-28  Martin Jambor  <mjambor@suse.cz>
 
+	* tree-sra.c (convert_callers): New parameter, change fndecls of
+	recursive calls.
+	(modify_function): Pass the old decl to convert_callers.
+
+2010-06-28  Martin Jambor  <mjambor@suse.cz>
+
 	* ipa-cp.c (ipcp_init_cloned_node): Replace calls to
 	ipa_check_create_node_params and ipa_initialize_node_params with
 	checking asserts they are not necessary.

gcc/testsuite/ChangeLog

+2010-06-28  Martin Jambor  <mjambor@suse.cz>
+
+	* testsuite/gcc.dg/ipa/ipa-sra-6.c: New test.
+
 2010-06-28  Jan Hubicka  <jh@suse.cz>
 
 	PR tree-optimization/44687

gcc/testsuite/gcc.dg/ipa/ipa-sra-6.c

+/* { dg-do compile } */
+/* { dg-options "-O2 -fipa-sra -fdump-tree-eipa_sra-slim"  } */
+
+struct bovid
+{
+  float a;
+  int b;
+  struct bovid *next;
+};
+
+static int
+__attribute__((noinline))
+foo (struct bovid *cow, int i)
+{
+  i++;
+  if (cow->next)
+    foo (cow->next, i);
+  return i;
+}
+
+int main (int argc, char *argv[])
+{
+  struct bovid cow;
+
+  cow.a = 7.4;
+  cow.b = 6;
+  cow.next = (struct bovid *) 0;
+
+  return foo (&cow, 0);
+}
+
+/* { dg-final { scan-tree-dump-times "foo " 1 "eipa_sra"  } } */

gcc/tree-sra.c

@@ -4167,7 +4167,8 @@ all_callers_have_enough_arguments_p (struct cgraph_node *node)
 /* Convert all callers of NODE to pass parameters as given in ADJUSTMENTS.  */
 
 static void
-convert_callers (struct cgraph_node *node, ipa_parm_adjustment_vec adjustments)
+convert_callers (struct cgraph_node *node, tree old_decl,
+		 ipa_parm_adjustment_vec adjustments)
 {
   tree old_cur_fndecl = current_function_decl;
   struct cgraph_edge *cs;
@@ -4214,10 +4215,11 @@ convert_callers (struct cgraph_node *node, ipa_parm_adjustment_vec adjustments)
 	  if (gimple_code (stmt) != GIMPLE_CALL)
 	    continue;
 	  call_fndecl = gimple_call_fndecl (stmt);
-	  if (call_fndecl && cgraph_get_node (call_fndecl) == node)
+	  if (call_fndecl == old_decl)
 	    {
 	      if (dump_file)
 		fprintf (dump_file, "Adjusting recursive call");
+	      gimple_call_set_fndecl (stmt, node->decl);
 	      ipa_modify_call_arguments (NULL, stmt, adjustments);
 	    }
 	}
@@ -4256,7 +4258,7 @@ modify_function (struct cgraph_node *node, ipa_parm_adjustment_vec adjustments)
   ipa_modify_formal_parameters (current_function_decl, adjustments, "ISRA");
   ipa_sra_modify_function_body (adjustments);
   sra_ipa_reset_debug_stmts (adjustments);
-  convert_callers (new_node, adjustments);
+  convert_callers (new_node, node->decl, adjustments);
   cgraph_make_node_local (new_node);
   return;
 }