re PR c++/84125 (ICE in generic lambda when static_assert argument is implicitly converted to bool)

	PR c++/84125
	* typeck.c (build_address): Relax the assert when
	processing_template_decl.

	* g++.dg/cpp1y/lambda-generic-84125.C:New test.

From-SVN: r257311

gcc/cp/ChangeLog

+2018-02-01  Marek Polacek  <polacek@redhat.com>
+
+	PR c++/84125
+	* typeck.c (build_address): Relax the assert when
+	processing_template_decl.
+
 2018-02-01  Jason Merrill  <jason@redhat.com>
 
 	PR c++/84126 - ICE with variadic generic lambda

gcc/cp/typeck.c

@@ -5735,7 +5735,8 @@ build_address (tree t)
 {
   if (error_operand_p (t) || !cxx_mark_addressable (t))
     return error_mark_node;
-  gcc_checking_assert (TREE_CODE (t) != CONSTRUCTOR);
+  gcc_checking_assert (TREE_CODE (t) != CONSTRUCTOR
+		       || processing_template_decl);
   t = build_fold_addr_expr_loc (EXPR_LOCATION (t), t);
   if (TREE_CODE (t) != ADDR_EXPR)
     t = rvalue (t);

gcc/testsuite/ChangeLog

+2018-02-01  Marek Polacek  <polacek@redhat.com>
+
+	PR c++/84125
+	* g++.dg/cpp1y/lambda-generic-84125.C:New test.
+
 2018-01-30  Jeff Law  <law@redhat.com>
 
 	PR target/84128

gcc/testsuite/g++.dg/cpp1y/lambda-generic-84125.C

+// PR c++/84125
+// { dg-do compile { target c++14 } }
+
+struct X { constexpr operator bool() const { return true; } };
+
+int main(){
+    [](auto) {
+        static_assert(X{}, "");
+    };
+}