re PR c++/58703 (ICE with invalid types in OpenMP declare reduction clause)

	PR c++/58703
	* parser.c (cp_parser_omp_declare_reduction): Save and free
	declarator_obstack.

	* c-c++-common/gomp/pr58703.c: New test.

From-SVN: r207511

gcc/cp/ChangeLog

+2014-02-05  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/58703
+	* parser.c (cp_parser_omp_declare_reduction): Save and free
+	declarator_obstack.
+
 2014-02-03  Marc Glisse  <marc.glisse@inria.fr>
 
 	PR c++/53017

gcc/cp/parser.c

@@ -30623,6 +30623,10 @@ cp_parser_omp_declare_reduction (cp_parser *parser, cp_token *pragma_tok,
   cp_token *first_token;
   cp_token_cache *cp;
   int errs;
+  void *p;
+    
+  /* Get the high-water mark for the DECLARATOR_OBSTACK.  */
+  p = obstack_alloc (&declarator_obstack, 0);
 
   if (!cp_parser_require (parser, CPP_OPEN_PAREN, RT_OPEN_PAREN))
     goto fail;
@@ -30731,7 +30735,7 @@ cp_parser_omp_declare_reduction (cp_parser *parser, cp_token *pragma_tok,
     {
      fail:
       cp_parser_skip_to_pragma_eol (parser, pragma_tok);
-      return;
+      goto done;
     }
 
   first_token = cp_lexer_peek_token (parser->lexer);
@@ -30835,6 +30839,10 @@ cp_parser_omp_declare_reduction (cp_parser *parser, cp_token *pragma_tok,
     }
 
   cp_parser_require_pragma_eol (parser, pragma_tok);
+
+ done:
+  /* Free any declarators allocated.  */
+  obstack_free (&declarator_obstack, p);
 }
 
 /* OpenMP 4.0

gcc/testsuite/ChangeLog

+2014-02-05  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/58703
+	* c-c++-common/gomp/pr58703.c: New test.
+
 2014-02-05  Richard Biener  <rguenther@suse.de>
 
 	PR testsuite/60076

gcc/testsuite/c-c++-common/gomp/pr58703.c

+/* PR c++/58703 */
+/* { dg-do compile } */
+/* { dg-options "-fopenmp" } */
+
+#pragma omp declare reduction (+ : char[] : omp_out += omp_in) /* { dg-error "function or array type" } */
+#pragma omp declare reduction (+ : char() : omp_out += omp_in) /* { dg-error "function or array type" } */