re PR c++/84596 (internal compiler error: unexpected expression '(bool)c' of…

re PR c++/84596 (internal compiler error: unexpected expression '(bool)c' of kind implicit_conv_expr (cxx_eval_constant_expression))

	PR c++/84596
	* semantics.c (finish_static_assert): Check
	instantiation_dependent_expression_p instead of
	{type,value}_dependent_expression_p.

	* g++.dg/cpp0x/static_assert15.C: New test.

From-SVN: r258513

gcc/cp/ChangeLog

+2018-03-14  Marek Polacek  <polacek@redhat.com>
+
+	PR c++/84596
+	* semantics.c (finish_static_assert): Check
+	instantiation_dependent_expression_p instead of
+	{type,value}_dependent_expression_p.
+
 2018-03-13  Paolo Carlini  <paolo.carlini@oracle.com>
 	    Jason Merrill  <jason@redhat.com>
 

gcc/cp/semantics.c

@@ -8630,8 +8630,7 @@ finish_static_assert (tree condition, tree message, location_t location,
   if (check_for_bare_parameter_packs (condition))
     condition = error_mark_node;
 
-  if (type_dependent_expression_p (condition) 
-      || value_dependent_expression_p (condition))
+  if (instantiation_dependent_expression_p (condition))
     {
       /* We're in a template; build a STATIC_ASSERT and put it in
          the right place. */

gcc/testsuite/ChangeLog

+2018-03-14  Marek Polacek  <polacek@redhat.com>
+
+	PR c++/84596
+	* g++.dg/cpp0x/static_assert15.C: New test.
+
 2018-03-13  Steven G. Kargl  <kargl@gcc.gnu.org>
 
 	PR fortran/61775

gcc/testsuite/g++.dg/cpp0x/static_assert15.C

+// PR c++/84596
+// { dg-do compile { target c++11 } }
+
+template<int x>
+struct a {
+  constexpr void b() {
+    int c;
+    static_assert(c %= 1, "");
+  }
+};