re PR tree-optimization/55890 (calling a builtin func through a cast triggers an ICE)

	PR middle-end/55890
	* tree-ssa-ccp.c (evaluate_stmt): Use gimple_call_builtin_p.

	* gcc.dg/torture/pr55890-3.c: New test.

From-SVN: r195008

gcc/ChangeLog

 2013-01-08  Jakub Jelinek  <jakub@redhat.com>
 
+	PR middle-end/55890
+	* tree-ssa-ccp.c (evaluate_stmt): Use gimple_call_builtin_p.
+
 	PR tree-optimization/54120
 	* tree-vrp.c (range_fits_type_p): Don't allow
 	src_precision < precision from signed vr to unsigned_p

gcc/testsuite/ChangeLog

 2013-01-08  Jakub Jelinek  <jakub@redhat.com>
 
+	PR middle-end/55890
+	* gcc.dg/torture/pr55890-3.c: New test.
+
 	PR middle-end/55851
 	* gcc.c-torture/compile/pr55851.c: New test.
 

gcc/testsuite/gcc.dg/torture/pr55890-3.c

+/* { dg-do compile } */
+
+void *memmove ();
+
+void *
+bar ()
+{
+  return memmove ();
+}

gcc/tree-ssa-ccp.c

 /* Conditional constant propagation pass for the GNU compiler.
    Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
-   2010, 2011, 2012 Free Software Foundation, Inc.
+   2010, 2011, 2012, 2013 Free Software Foundation, Inc.
    Adapted from original RTL SSA-CCP by Daniel Berlin <dberlin@dberlin.org>
    Adapted to GIMPLE trees by Diego Novillo <dnovillo@redhat.com>
 
@@ -1546,7 +1546,6 @@ evaluate_stmt (gimple stmt)
       && !is_constant)
     {
       enum gimple_code code = gimple_code (stmt);
-      tree fndecl;
       val.lattice_val = VARYING;
       val.value = NULL_TREE;
       val.mask = double_int_minus_one;
@@ -1593,10 +1592,9 @@ evaluate_stmt (gimple stmt)
 	      || POINTER_TYPE_P (TREE_TYPE (rhs1)))
 	    val = bit_value_binop (code, TREE_TYPE (rhs1), rhs1, rhs2);
 	}
-      else if (code == GIMPLE_CALL
-	       && (fndecl = gimple_call_fndecl (stmt))
-	       && DECL_BUILT_IN_CLASS (fndecl) == BUILT_IN_NORMAL)
+      else if (gimple_call_builtin_p (stmt, BUILT_IN_NORMAL))
 	{
+	  tree fndecl = gimple_call_fndecl (stmt);
 	  switch (DECL_FUNCTION_CODE (fndecl))
 	    {
 	    case BUILT_IN_MALLOC: