re PR c++/84664 (internal compiler error: in cp_perform_integral_promotions, at cp/typeck.c:2172)

	PR c++/84664
	* typeck.c (cp_perform_integral_promotions): Check the result of
	mark_rvalue_use.

	* g++.dg/cpp0x/lambda/lambda-ice28.C: New test.

From-SVN: r258149

gcc/cp/ChangeLog

@@ -3,6 +3,10 @@
 	PR c++/84663
 	* decl.c (cp_complete_array_type): Check error_mark_node.
 
+	PR c++/84664
+	* typeck.c (cp_perform_integral_promotions): Check the result of
+	mark_rvalue_use.
+
 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/84662

gcc/cp/typeck.c

@@ -2161,6 +2161,8 @@ cp_perform_integral_promotions (tree expr, tsubst_flags_t complain)
   tree promoted_type;
 
   expr = mark_rvalue_use (expr);
+  if (error_operand_p (expr))
+    return error_mark_node;
 
   /* [conv.prom]
 

gcc/testsuite/ChangeLog

@@ -6,6 +6,9 @@
 	PR c++/84663
 	* g++.dg/parse/array-size3.C: New test.
 
+	PR c++/84664
+	* g++.dg/cpp0x/lambda/lambda-ice28.C: New test.
+
 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/84662

gcc/testsuite/g++.dg/cpp0x/lambda/lambda-ice28.C

+// PR c++/84664
+// { dg-do compile { target c++11 } }
+
+void
+foo ()
+{
+  auto &b = 1; // { dg-error "cannot bind" }
+  [] { b > 0; }; // { dg-error ".b. is not captured" }
+}