PR c++/80059 - ICE with noexcept and __transaction_atomic

	PR c++/80059 - ICE with noexcept and __transaction_atomic
	* except.c (build_must_not_throw_expr): Call
	instantiate_non_dependent_expr_sfinae.

	* g++.dg/tm/pr80059-2.C: New test.
	* g++.dg/tm/pr80059.C: New test.

Co-Authored-By: Paolo Carlini <paolo.carlini@oracle.com>

From-SVN: r246279

gcc/cp/ChangeLog

+2017-03-20  Marek Polacek  <polacek@redhat.com>
+	    Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/80059 - ICE with noexcept and __transaction_atomic
+	* except.c (build_must_not_throw_expr): Call
+	instantiate_non_dependent_expr_sfinae.
+
 2017-03-19  Jason Merrill  <jason@redhat.com>
 
 	PR c++/80084 - wrong C++17 decomposition by reference of parameter.

gcc/cp/except.c

@@ -271,6 +271,7 @@ build_must_not_throw_expr (tree body, tree cond)
       cond = perform_implicit_conversion_flags (boolean_type_node, cond,
 						tf_warning_or_error,
 						LOOKUP_NORMAL);
+      cond = instantiate_non_dependent_expr (cond);
       cond = cxx_constant_value (cond);
       if (integer_zerop (cond))
 	return body;

gcc/testsuite/ChangeLog

+2017-03-20  Marek Polacek  <polacek@redhat.com>
+	    Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/80059 - ICE with noexcept and __transaction_atomic
+	* g++.dg/tm/pr80059-2.C: New test.
+	* g++.dg/tm/pr80059.C: New test.
+
 2017-03-20  Martin Liska  <mliska@suse.cz>
 
 	PR middle-end/79753

gcc/testsuite/g++.dg/tm/pr80059-2.C

+// PR c++/80059
+// { dg-do compile { target c++11 } }
+// { dg-options "-fgnu-tm" }
+
+template<typename T> int foo(T b)
+{
+  return __transaction_atomic noexcept(b) (0); // { dg-error "is not a constant expression" }
+}
+
+void bar()
+{
+  foo(true);
+}

gcc/testsuite/g++.dg/tm/pr80059.C

+// PR c++/80059
+// { dg-do compile { target c++11 } }
+// { dg-options "-fgnu-tm" }
+
+template<typename> int foo(bool b)
+{
+  return __transaction_atomic noexcept(b) (0); // { dg-error "is not a constant expression" }
+}
+
+void bar()
+{
+  foo<int>(true);
+}