PR c++/79607 - ICE with T{} initializer

	* decl.c (type_dependent_init_p): Check the type of a CONSTRUCTOR.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@245592 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/cp/ChangeLog

@@ -1,5 +1,8 @@
 2017-02-19  Jason Merrill  <jason@redhat.com>
 
+	PR c++/79607 - ICE with T{} initializer
+	* decl.c (type_dependent_init_p): Check the type of a CONSTRUCTOR.
+
 	PR c++/79566 - elaborated-type-specifier in range for
 	* parser.c (cp_parser_simple_declaration): Fix check for type
 	definition.

gcc/cp/decl.c

@@ -6662,6 +6662,9 @@ type_dependent_init_p (tree init)
   else if (TREE_CODE (init) == CONSTRUCTOR)
   /* A brace-enclosed initializer, e.g.: int i = { 3 }; ? */
     {
+      if (dependent_type_p (TREE_TYPE (init)))
+	return true;
+
       vec<constructor_elt, va_gc> *elts;
       size_t nelts;
       size_t i;

gcc/testsuite/g++.dg/template/init11.C

@@ -0,0 +1,9 @@
+// PR c++/79607
+// { dg-do compile { target c++11 } }
+
+template<typename T> struct A
+{
+  static const int i = int{T{}};
+};
+
+A<int> a;