tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_DEVICE_TYPE.

	* tree-core.h (enum omp_clause_code): Add OMP_CLAUSE_DEVICE_TYPE.
	(enum omp_clause_device_type_kind): New enum.
	(struct tree_omp_clause): Add subcode.device_type_kind.
	* tree.h (OMP_CLAUSE_DEVICE_TYPE_KIND): Define.
	* tree.c (omp_clause_num_ops, omp_clause_code_name): Add entries
	for device_type clause.
	(walk_tree_1): Handle OMP_CLAUSE_DEVICE_TYPE.
	* tree-pretty-print.c (dump_omp_clause): Likewise.
c-family/
	* c-pragma.h (enum pragma_omp_clause): Add
	PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
c/
	* c-parser.c (c_parser_omp_clause_name): Parse device_type.
	(c_parser_omp_clause_device_type): New function.
	(c_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
	(OMP_DECLARE_TARGET_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
	(c_parser_omp_declare_target): Handle device_type clauses.  Remove
	diagnostics for declare target with clauses nested in clause-less
	declare target declaration-definition-seq.
	* c-typeck.c (c_finish_omp_clauses): Handle OMP_CLAUSE_DEVICE_TYPE.
cp/
	* parser.c (cp_parser_omp_clause_name): Parse device_type.
	(cp_parser_omp_clause_device_type): New function.
	(cp_parser_omp_all_clauses): Handle PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
	(OMP_DECLARE_TARGET_CLAUSE_MASK): Add PRAGMA_OMP_CLAUSE_DEVICE_TYPE.
	(cp_parser_omp_declare_target): Handle device_type clauses.  Remove
	diagnostics for declare target with clauses nested in clause-less
	declare target declaration-definition-seq.
	* semantics.c (finish_omp_clauses): Handle OMP_CLAUSE_DEVICE_TYPE.
testsuite/
	* c-c++-common/gomp/declare-target-2.c: Don't expect error for
	declare target with clauses in between declare target without clauses
	and end declare target.
	* c-c++-common/gomp/declare-target-4.c: New test.

From-SVN: r274252

1 files changed, 87 insertions, 6 deletions

diff --git a/gcc/c/c-parser.c b/gcc/c/c-parser.c
index 055e650..81919a8 100644
--- a/gcc/c/c-parser.c
+++ b/gcc/c/c-parser.c
@@ -11720,6 +11720,8 @@ c_parser_omp_clause_name (c_parser *parser)
 	    result = PRAGMA_OACC_CLAUSE_DEVICEPTR;
 	  else if (!strcmp ("device_resident", p))
 	    result = PRAGMA_OACC_CLAUSE_DEVICE_RESIDENT;
+	  else if (!strcmp ("device_type", p))
+	    result = PRAGMA_OMP_CLAUSE_DEVICE_TYPE;
 	  else if (!strcmp ("dist_schedule", p))
 	    result = PRAGMA_OMP_CLAUSE_DIST_SCHEDULE;
 	  break;
@@ -14863,6 +14865,50 @@ c_parser_omp_clause_proc_bind (c_parser *parser, tree list)
   return list;
 }
 
+/* OpenMP 5.0:
+   device_type ( host | nohost | any )  */
+
+static tree
+c_parser_omp_clause_device_type (c_parser *parser, tree list)
+{
+  location_t clause_loc = c_parser_peek_token (parser)->location;
+  enum omp_clause_device_type_kind kind;
+  tree c;
+
+  matching_parens parens;
+  if (!parens.require_open (parser))
+    return list;
+
+  if (c_parser_next_token_is (parser, CPP_NAME))
+    {
+      const char *p = IDENTIFIER_POINTER (c_parser_peek_token (parser)->value);
+      if (strcmp ("host", p) == 0)
+	kind = OMP_CLAUSE_DEVICE_TYPE_HOST;
+      else if (strcmp ("nohost", p) == 0)
+	kind = OMP_CLAUSE_DEVICE_TYPE_NOHOST;
+      else if (strcmp ("any", p) == 0)
+	kind = OMP_CLAUSE_DEVICE_TYPE_ANY;
+      else
+	goto invalid_kind;
+    }
+  else
+    goto invalid_kind;
+
+  /* check_no_duplicate_clause (list, OMP_CLAUSE_DEVICE_TYPE,
+				"device_type");  */
+  c_parser_consume_token (parser);
+  parens.skip_until_found_close (parser);
+  c = build_omp_clause (clause_loc, OMP_CLAUSE_DEVICE_TYPE);
+  OMP_CLAUSE_DEVICE_TYPE_KIND (c) = kind;
+  OMP_CLAUSE_CHAIN (c) = list;
+  return c;
+
+ invalid_kind:
+  c_parser_error (parser, "expected %<host%>, %<nohost%> or %<any%>");
+  parens.skip_until_found_close (parser);
+  return list;
+}
+
 /* OpenMP 4.0:
    to ( variable-list ) */
 
@@ -15350,6 +15396,10 @@ c_parser_omp_all_clauses (c_parser *parser, omp_clause_mask mask,
 	  clauses = c_parser_omp_clause_proc_bind (parser, clauses);
 	  c_name = "proc_bind";
 	  break;
+	case PRAGMA_OMP_CLAUSE_DEVICE_TYPE:
+	  clauses = c_parser_omp_clause_device_type (parser, clauses);
+	  c_name = "device_type";
+	  break;
 	case PRAGMA_OMP_CLAUSE_SAFELEN:
 	  clauses = c_parser_omp_clause_safelen (parser, clauses);
 	  c_name = "safelen";
@@ -18997,13 +19047,15 @@ c_finish_omp_declare_simd (c_parser *parser, tree fndecl, tree parms,
 
 #define OMP_DECLARE_TARGET_CLAUSE_MASK				\
 	( (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_TO)		\
-	| (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_LINK))
+	| (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_LINK)		\
+	| (OMP_CLAUSE_MASK_1 << PRAGMA_OMP_CLAUSE_DEVICE_TYPE))
 
 static void
 c_parser_omp_declare_target (c_parser *parser)
 {
-  location_t loc = c_parser_peek_token (parser)->location;
   tree clauses = NULL_TREE;
+  int device_type = 0;
+  bool only_device_type = true;
   if (c_parser_next_token_is (parser, CPP_NAME))
     clauses = c_parser_omp_all_clauses (parser, OMP_DECLARE_TARGET_CLAUSE_MASK,
 					"#pragma omp declare target");
@@ -19020,16 +19072,18 @@ c_parser_omp_declare_target (c_parser *parser)
       current_omp_declare_target_attribute++;
       return;
     }
-  if (current_omp_declare_target_attribute)
-    error_at (loc, "%<#pragma omp declare target%> with clauses in between "
-		   "%<#pragma omp declare target%> without clauses and "
-		   "%<#pragma omp end declare target%>");
+  for (tree c = clauses; c; c = OMP_CLAUSE_CHAIN (c))
+    if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_DEVICE_TYPE)
+      device_type |= OMP_CLAUSE_DEVICE_TYPE_KIND (c);
   for (tree c = clauses; c; c = OMP_CLAUSE_CHAIN (c))
     {
+      if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_DEVICE_TYPE)
+	continue;
       tree t = OMP_CLAUSE_DECL (c), id;
       tree at1 = lookup_attribute ("omp declare target", DECL_ATTRIBUTES (t));
       tree at2 = lookup_attribute ("omp declare target link",
 				   DECL_ATTRIBUTES (t));
+      only_device_type = false;
       if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_LINK)
 	{
 	  id = get_identifier ("omp declare target link");
@@ -19062,7 +19116,34 @@ c_parser_omp_declare_target (c_parser *parser)
 		}
 	    }
 	}
+      if (TREE_CODE (t) != FUNCTION_DECL)
+	continue;
+      if ((device_type & OMP_CLAUSE_DEVICE_TYPE_HOST) != 0)
+	{
+	  tree at3 = lookup_attribute ("omp declare target host",
+				       DECL_ATTRIBUTES (t));
+	  if (at3 == NULL_TREE)
+	    {
+	      id = get_identifier ("omp declare target host");
+	      DECL_ATTRIBUTES (t)
+		= tree_cons (id, NULL_TREE, DECL_ATTRIBUTES (t));
+	    }
+	}
+      if ((device_type & OMP_CLAUSE_DEVICE_TYPE_NOHOST) != 0)
+	{
+	  tree at3 = lookup_attribute ("omp declare target nohost",
+				       DECL_ATTRIBUTES (t));
+	  if (at3 == NULL_TREE)
+	    {
+	      id = get_identifier ("omp declare target nohost");
+	      DECL_ATTRIBUTES (t)
+		= tree_cons (id, NULL_TREE, DECL_ATTRIBUTES (t));
+	    }
+	}
     }
+  if (device_type && only_device_type)
+    warning_at (OMP_CLAUSE_LOCATION (clauses), 0,
+		"directive with only %<device_type%> clauses ignored");
 }
 
 static void