re PR c++/42060 ([c++0x] ICE throwing array with initializer list)

cp/
2009-11-20  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/42060
	* except.c (build_throw): Check the tree returned by
	decay_conversion for error_mark_node.

testsuite/
2009-11-20  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/42060
	* g++.dg/cpp0x/initlist28.C: New.

From-SVN: r154371

gcc/cp/ChangeLog

+2009-11-20  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/42060
+	* except.c (build_throw): Check the tree returned by
+	decay_conversion for error_mark_node.
+
 2009-11-20  Shujing Zhao  <pearly.zhao@oracle.com>
 
 	PR c++/29017

gcc/cp/except.c

@@ -752,8 +752,12 @@ build_throw (tree exp)
 	    }
 	}
       else
-	exp = build2 (INIT_EXPR, temp_type, object,
-		      decay_conversion (exp));
+	{
+	  tmp = decay_conversion (exp);
+	  if (tmp == error_mark_node)
+	    return error_mark_node;
+	  exp = build2 (INIT_EXPR, temp_type, object, tmp);
+	}
 
       /* Pre-evaluate the thrown expression first, since if we allocated
 	 the space first we would have to deal with cleaning it up if

gcc/testsuite/ChangeLog

+2009-11-20  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/42060
+	* g++.dg/cpp0x/initlist28.C: New.
+
 2009-11-20  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* gfortran.dg/proc_ptr_comp_23.f90: Add a missing space.

gcc/testsuite/g++.dg/cpp0x/initlist28.C

+// PR c++/42060
+// { dg-options "-std=c++0x" }
+
+void foo()
+{
+  int a[1];
+  throw a = {}; // { dg-error "invalid use of non-lvalue array" }
+}