* c-common.c (sync_resolve_params): Remove write-only variable.

[pf3gnuchains/gcc-fork.git] / gcc / c-common.c

diff --git a/gcc/c-common.c b/gcc/c-common.c
index d939e12..b213671 100644 (file)
--- a/gcc/c-common.c
+++ b/gcc/c-common.c
@@ -529,6 +529,7 @@ static tree handle_type_generic_attribute (tree *, tree, tree, int, bool *);
 static tree handle_alloc_size_attribute (tree *, tree, tree, int, bool *);
 static tree handle_target_attribute (tree *, tree, tree, int, bool *);
 static tree handle_optimize_attribute (tree *, tree, tree, int, bool *);
+static tree handle_fnspec_attribute (tree *, tree, tree, int, bool *);
 
 static void check_function_nonnull (tree, int, tree *);
 static void check_nonnull_arg (void *, tree, unsigned HOST_WIDE_INT);
@@ -656,6 +657,7 @@ const struct c_common_resword c_common_reswords[] =
   { "mutable",         RID_MUTABLE,    D_CXXONLY | D_CXXWARN },
   { "namespace",       RID_NAMESPACE,  D_CXXONLY | D_CXXWARN },
   { "new",             RID_NEW,        D_CXXONLY | D_CXXWARN },
+  { "nullptr",         RID_NULLPTR,    D_CXXONLY | D_CXX0X | D_CXXWARN },
   { "operator",                RID_OPERATOR,   D_CXXONLY | D_CXXWARN },
   { "private",         RID_PRIVATE,    D_CXX_OBJC | D_CXXWARN },
   { "protected",       RID_PROTECTED,  D_CXX_OBJC | D_CXXWARN },
@@ -828,6 +830,10 @@ const struct attribute_spec c_common_attribute_table[] =
                              handle_target_attribute },
   { "optimize",               1, -1, true, false, false,
                              handle_optimize_attribute },
+  /* For internal use (marking of builtins and runtime functions) only.
+     The name contains space to prevent its usage in source code.  */
+  { "fn spec",               1, 1, false, true, true,
+                             handle_fnspec_attribute },
   { NULL,                     0, 0, false, false, false, NULL }
 };
 
@@ -7137,6 +7143,20 @@ handle_alloc_size_attribute (tree *node, tree ARG_UNUSED (name), tree args,
   return NULL_TREE;
 }
 
+/* Handle a "fn spec" attribute; arguments as in
+   struct attribute_spec.handler.  */
+
+static tree
+handle_fnspec_attribute (tree *node ATTRIBUTE_UNUSED, tree ARG_UNUSED (name),
+                        tree args, int ARG_UNUSED (flags),
+                        bool *no_add_attrs ATTRIBUTE_UNUSED)
+{
+  gcc_assert (args
+             && TREE_CODE (TREE_VALUE (args)) == STRING_CST
+             && !TREE_CHAIN (args));
+  return NULL_TREE;
+}
+
 /* Handle a "returns_twice" attribute; arguments as in
    struct attribute_spec.handler.  */
 
@@ -8760,7 +8780,6 @@ sync_resolve_params (tree orig_function, tree function, VEC(tree, gc) *params)
 {
   tree arg_types = TYPE_ARG_TYPES (TREE_TYPE (function));
   tree ptype;
-  int number;
   unsigned int parmnum;
 
   /* We've declared the implementation functions to use "volatile void *"
@@ -8768,7 +8787,6 @@ sync_resolve_params (tree orig_function, tree function, VEC(tree, gc) *params)
      call to check_function_arguments what ever type the user used.  */
   arg_types = TREE_CHAIN (arg_types);
   ptype = TREE_TYPE (TREE_TYPE (VEC_index (tree, params, 0)));
-  number = 2;
 
   /* For the rest of the values, we need to cast these to FTYPE, so that we
      don't get warnings for passing pointer types, etc.  */
@@ -8793,7 +8811,6 @@ sync_resolve_params (tree orig_function, tree function, VEC(tree, gc) *params)
       VEC_replace (tree, params, parmnum, val);
 
       arg_types = TREE_CHAIN (arg_types);
-      number++;
     }
 
   /* The definition of these primitives is variadic, with the remaining