re PR c++/47200 ([C++0x] ICE: in adjust_temp_type, at cp/semantics.c:5821 with…

re PR c++/47200 ([C++0x] ICE: in adjust_temp_type, at cp/semantics.c:5821 with missing definition of constexpr function)

	PR c++/47200
	* semantics.c (cxx_bind_parameters_in_call): Don't call
	adjust_temp_type on non-constant args.

From-SVN: r170620

gcc/cp/ChangeLog

 2011-03-01  Jason Merrill  <jason@redhat.com>
 
+	PR c++/47200
+	* semantics.c (cxx_bind_parameters_in_call): Don't call
+	adjust_temp_type on non-constant args.
+
 	PR c++/47851
 	* call.c (standard_conversion): Provide requested cv-quals on
 	class rvalue conversion.

gcc/cp/semantics.c

@@ -5906,6 +5906,9 @@ cxx_bind_parameters_in_call (const constexpr_call *old_call, tree t,
       /* Just discard ellipsis args after checking their constantitude.  */
       if (!parms)
 	continue;
+      if (*non_constant_p)
+	/* Don't try to adjust the type of non-constant args.  */
+	goto next;
 
       /* Make sure the binding has the same type as the parm.  */
       if (TREE_CODE (type) != REFERENCE_TYPE)

gcc/testsuite/ChangeLog

+2011-03-01  Jason Merrill  <jason@redhat.com>
+
+	* g++.dg/cpp0x/constexpr-non-const-arg2.C: New.
+
 2011-03-02  Richard Sandiford  <richard.sandiford@linaro.org>
 
 	PR rtl-optimization/47925

gcc/testsuite/g++.dg/cpp0x/constexpr-non-const-arg2.C

+// PR c++/47200
+// { dg-options "-std=c++0x -w" }
+
+template < int > struct duration
+{
+  constexpr int count ();
+  static constexpr duration min ();
+};
+
+constexpr int
+f (duration < 0 > d, duration < 0 > )
+{
+  return d.count ();
+}
+
+static_assert (f (duration < 0 >::min (), duration < 0 > ()), ""); // { dg-error "non-constant|before its definition" }