re PR c++/28705 (ICE: in type_dependent_expression_p, at cp/pt.c:12837)

cp/
	PR c++/28705
	* semantics.c (finish_call_expr): Add assert.
	* name-lookup.c (lookup_arg_dependent): Check we found an overload
	or an object.
testsuite/
	PR c++/28705
	* g++.dg/lookup/koenig5.C: New.
	* g++.dg/template/crash56.C: New.

From-SVN: r116638

3 files changed, 71 insertions, 3 deletions

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index df6e40f..530c23e 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,9 +1,15 @@
+2006-09-01  Nathan Sidwell  <nathan@codesourcery.com>
+
+	PR c++/28705
+	* g++.dg/lookup/koenig5.C: New.
+	* g++.dg/template/crash56.C: New.
+
 2006-09-01  Josh Conner  <jconner@apple.com>
 
 	PR c++/25505
-	gcc.dg/nrv3.c: New test.
-	gcc.dg/nrv4.c: New test.
-	gcc.dg/nrv5.c: New test.
+	* gcc.dg/nrv3.c: New test.
+	* gcc.dg/nrv4.c: New test.
+	* gcc.dg/nrv5.c: New test.
 
 2006-09-01  Nathan Sidwell  <nathan@codesourcery.com>
 
diff --git a/gcc/testsuite/g++.dg/lookup/koenig5.C b/gcc/testsuite/g++.dg/lookup/koenig5.C
new file mode 100644
index 0000000..139e3b8
--- /dev/null
+++ b/gcc/testsuite/g++.dg/lookup/koenig5.C
@@ -0,0 +1,46 @@
+// Koenig lookup is not defined as intended in the std.  DR 218 gives
+// an indication of what is meant.  This test case encapsulates the
+// current conservative behaviour
+
+// Copyright (C) 2006 Free Software Foundation, Inc.
+// Contributed by Nathan Sidwell 27 Aug 2006 <nathan@codesourcery.com>
+
+namespace N
+{
+  struct A {};
+  void One (...);  // { dg-error "conflict with" "" }
+  void (*Two) (...);  // { dg-error "not a function" "" }
+  namespace Three {} // { dg-error "lookup finds|not a function" "" }
+}
+
+namespace M
+{
+  struct B {};
+  struct One {};  // { dg-error "lookup finds|not a function" "" }
+  void (*Two) (...);  // { dg-error "conflict with" "" }
+  void Three (...);  // { dg-error "conflict with" "" }
+}
+
+namespace O 
+{
+  struct C {};
+  void Two (...); // { dg-error "conflict with" "" }
+}
+  
+void g (N::A *a, M::B *b, O::C *c)
+{
+  One (a); // ok
+  One (b); // { dg-error "in call to" "" }
+  One (a, b); // { dg-error "in call to" "" }
+
+  Two (a); // ok
+  Two (a, a); // ok
+  Two (b); // ok
+  Two (c); // ok
+  Two (a, b); // { dg-error "in call to" "" }
+  Two (a, c); // { dg-error "in call to" "" }
+  
+  Three (a); // { dg-error "in call to" "" }
+  Three (b); // ok
+  Three (a, b); // { dg-error "in call to" "" }
+}
diff --git a/gcc/testsuite/g++.dg/template/crash56.C b/gcc/testsuite/g++.dg/template/crash56.C
new file mode 100644
index 0000000..1efa350
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/crash56.C
@@ -0,0 +1,16 @@
+// Origin: Wolfgang Bangerth <bangerth@dealii.org>
+
+// PR c++/28705
+// DR 218 is debating whether this is well formed or not.  We've never
+// accepted it (because we'd crash), so we continue to reject it, but
+// without crashing.
+
+namespace N
+{
+  struct A { A (A*); }; // { dg-error "lookup finds" "" }
+}
+
+template<typename T> void g (N::A *p)
+{
+  (void) A (p); // { dg-error "in call" "" }
+}