re PR c++/28501 (ICE with __real__ and implicit type conversion)

/cp
2011-05-03  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/28501
	* call.c (add_builtin_candidate): Handle REALPART_EXPR and
	IMAGPART_EXPR.

/testsuite
2011-05-03  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/28501
	* g++.dg/ext/complex9.C: New.

From-SVN: r173337

gcc/cp/ChangeLog

+2011-05-03  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/28501
+	* call.c (add_builtin_candidate): Handle REALPART_EXPR and
+	IMAGPART_EXPR.
+
 2011-05-02  Lawrence Crowl  <crowl@google.com>
 
 	* decl.c: (push_local_name): Change TV_NAME_LOOKUP to start/stop.

gcc/cp/call.c

 /* Functions related to invoking methods and overloaded functions.
    Copyright (C) 1987, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+   2010, 2011
    Free Software Foundation, Inc.
    Contributed by Michael Tiemann (tiemann@cygnus.com) and
    modified by Brendan Kehoe (brendan@cygnus.com).
@@ -2586,6 +2587,12 @@ add_builtin_candidate (struct z_candidate **candidates, enum tree_code code,
 	 types are TYPE2.  */
       break;
 
+    case REALPART_EXPR:
+    case IMAGPART_EXPR:
+      if (ARITHMETIC_TYPE_P (type1))
+	break;
+      return;
+ 
     default:
       gcc_unreachable ();
     }

gcc/testsuite/ChangeLog

+2011-05-03  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/28501
+	* g++.dg/ext/complex9.C: New.
+
 2011-05-03  Stuart Henderson  <shenders@gcc.gnu.org>
 
 	From Mike Frysinger

gcc/testsuite/g++.dg/ext/complex9.C

+// PR c++/28501
+
+struct A
+{
+  operator int();
+};
+
+int i = __real__ A();