[committed] Emit sorry for inscan reduction modifier

[Jakub Jelinek]

Hi!

In this case, even the parsing isn't finished (while the modifier is parsed,
if there is the modifier, there must be scan directive in the body etc.).

This patch emits a sorry.

Bootstrapped/regtested on x86_64-linux and i686-linux, committed to trunk.

2018-11-09  Jakub Jelinek  <jakub@redhat.com>

	* c-parser.c (c_parser_omp_clause_reduction): Call sorry_at on
	reduction clause with inscan modifier.

	* parser.c (cp_parser_omp_clause_reduction): Call sorry_at on
	reduction clause with inscan modifier.

--- gcc/c/c-parser.c.jj	2018-11-09 16:01:53.406548059 +0100
+++ gcc/c/c-parser.c	2018-11-09 17:17:05.454216557 +0100
@@ -13280,7 +13280,11 @@ c_parser_omp_clause_reduction (c_parser
 	      if (strcmp (p, "task") == 0)
 		task = true;
 	      else if (strcmp (p, "inscan") == 0)
-		inscan = true;
+		{
+		  inscan = true;
+		  sorry ("%<inscan%> modifier on %<reduction%> clause "
+			 "not supported yet");
+		}
 	      if (task || inscan)
 		{
 		  c_parser_consume_token (parser);
--- gcc/cp/parser.c.jj	2018-11-09 16:02:30.582935064 +0100
+++ gcc/cp/parser.c	2018-11-09 17:18:47.887528746 +0100
@@ -33115,7 +33115,11 @@ cp_parser_omp_clause_reduction (cp_parse
 	  if (strcmp (p, "task") == 0)
 	    task = true;
 	  else if (strcmp (p, "inscan") == 0)
-	    inscan = true;
+	    {
+	      inscan = true;
+	      sorry ("%<inscan%> modifier on %<reduction%> clause "
+		     "not supported yet");
+	    }
 	  if (task || inscan)
 	    {
 	      cp_lexer_consume_token (parser->lexer);

	Jakub