1 files changed, 77 insertions, 0 deletions
diff --git a/gcc/cp/cp-cilkplus.c b/gcc/cp/cp-cilkplus.c
new file mode 100644
index 00000000000..5c1090a097f
--- /dev/null
+++ b/gcc/cp/cp-cilkplus.c
@@ -0,0 +1,77 @@
+/* This file is part of the Intel(R) Cilk(TM) Plus support
+   This file contains routines to handle Cilk Plus specific
+   routines for the C++ Compiler.
+   Copyright (C) 2013  Free Software Foundation, Inc.
+   Contributed by Aldy Hernandez <aldyh@redhat.com>.
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   GCC is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with GCC; see the file COPYING3.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "cp-tree.h"
+#include "diagnostic-core.h"
+
+
+/* Callback for cp_walk_tree to validate the body of a pragma simd loop
+   or _cilk_for loop.
+
+   This function is passed in as a function pointer to walk_tree.  *TP is
+   the current tree pointer, *WALK_SUBTREES is set to 0 by this function if
+   recursing into TP's subtrees is unnecessary. *DATA is a bool variable that
+   is set to false if an error has occured.  */
+
+static tree
+cpp_validate_cilk_plus_loop_aux (tree *tp, int *walk_subtrees, void *data)
+{
+  bool *valid = (bool *) data;
+  location_t loc = EXPR_HAS_LOCATION (*tp) ? EXPR_LOCATION (*tp) :
+    UNKNOWN_LOCATION;
+
+  if (!tp || !*tp)
+    return NULL_TREE;
+
+  if (TREE_CODE (*tp) == THROW_EXPR)
+    {
+      error_at (loc, "throw expressions are not allowed inside loops "
+		"marked with pragma simd");
+      *walk_subtrees = 0;
+      *valid = false;
+    }
+  else if (TREE_CODE (*tp) == TRY_BLOCK)
+    {
+      error_at (loc, "try statements are not allowed inside loops marked "
+		"with #pragma simd");
+      *valid = false;
+      *walk_subtrees = 0;
+    }
+  return NULL_TREE;
+}  
+
+
+/* Walks through all the subtrees of BODY using walk_tree to make sure
+   invalid statements/expressions are not found inside BODY.  Returns
+   false if any invalid statements are found.  */
+
+bool
+cpp_validate_cilk_plus_loop (tree body)
+{
+  bool valid = true;
+  cp_walk_tree (&body, cpp_validate_cilk_plus_loop_aux,
+		(void *) &valid, NULL);
+  return valid;
+}