re PR c++/24996 (ICE on throw code)

        PR c++/24996
        * except.c (build_throw): Add a CLEANUP_POINT_EXPR inside the
        TRY_CATCH_EXPR or MUST_NOT_THROW_EXPR.

From-SVN: r110889

gcc/cp/ChangeLog

+2006-02-12  Jason Merrill  <jason@redhat.com>
+
+	PR c++/24996
+	* except.c (build_throw): Add a CLEANUP_POINT_EXPR inside the 
+	TRY_CATCH_EXPR or MUST_NOT_THROW_EXPR.
+
 2006-02-10  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 
 	* class.c (debug_class): Remove extern.

gcc/cp/except.c

@@ -722,6 +722,7 @@ build_throw (tree exp)
       temp_expr = NULL_TREE;
       stabilize_init (exp, &temp_expr);
 
+      exp = build1 (CLEANUP_POINT_EXPR, TREE_TYPE (exp), exp);
       if (elided)
 	exp = build2 (TRY_CATCH_EXPR, void_type_node, exp,
 		      do_free_exception (ptr));

gcc/testsuite/g++.dg/eh/cond3.C

+// PR c++/24996
+// Bug: the cleanup for the A temporary was confusing the gimplifier
+// because of the TRY_CATCH_EXPR for the exception object.
+
+struct A { A(int); ~A(); };
+struct B { B(A); ~B(); };
+void foo(bool b)
+{
+  throw b ? B(1) : B(1);
+}