re PR c/68090 (VLA compound literal -- "confused by earlier errors, bailing out")

	PR c/68090
	* c-parser.c (c_parser_postfix_expression_after_paren_type): Don't
	deal with pre-evaluation on invalid types.

	* gcc.dg/pr68090.c: New test.

From-SVN: r229823

gcc/c/ChangeLog

+2015-11-05  Marek Polacek  <polacek@redhat.com>
+
+	PR c/68090
+	* c-parser.c (c_parser_postfix_expression_after_paren_type): Don't
+	deal with pre-evaluation on invalid types.
+
 2015-11-05  Jakub Jelinek  <jakub@redhat.com>
 	    Ilya Verbin  <ilya.verbin@intel.com>
 

gcc/c/c-parser.c

@@ -7855,7 +7855,7 @@ c_parser_postfix_expression_after_paren_type (c_parser *parser,
   expr.value = build_compound_literal (start_loc, type, init.value, non_const);
   expr.original_code = ERROR_MARK;
   expr.original_type = NULL;
-  if (type_expr)
+  if (type != error_mark_node && type_expr)
     {
       if (TREE_CODE (expr.value) == C_MAYBE_CONST_EXPR)
 	{

gcc/testsuite/ChangeLog

+2015-11-05  Marek Polacek  <polacek@redhat.com>
+
+	PR c/68090
+	* gcc.dg/pr68090.c: New test.
+
 2015-11-05  James Greenhalgh  <james.greenhalgh@arm.com>
 
 	* gcc.dg/ifcvt-4.c: New.

gcc/testsuite/gcc.dg/pr68090.c

+/* PR c/68090 */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+void
+fn (int i)
+{
+  (int[(0, 1)]) { 0 }; /* { dg-error "compound literal has variable size" } */
+  (int[i]) { 0 }; /* { dg-error "compound literal has variable size" } */
+  (int[(0, i)]) { 0 }; /* { dg-error "compound literal has variable size" } */
+  (int [][i]){ 0 }; /* { dg-error "compound literal has variable size" } */
+  (int [][(1, 2)]){ 0 }; /* { dg-error "compound literal has variable size" } */
+}