+2014-05-07 Joern Rennecke <joern.rennecke@embecosm.com>
+
+ * config/epiphany/epiphany.c (epiphany_handle_interrupt_attribute):
+ Emit an error when the function has arguments.
+
2014-05-07 Thomas Schwinge <thomas@codesourcery.com>
* cfgloop.h (unswitch_loops): Remove.
/* Handle an "interrupt" attribute; arguments as in
struct attribute_spec.handler. */
static tree
-epiphany_handle_interrupt_attribute (tree *node ATTRIBUTE_UNUSED,
- tree name, tree args,
+epiphany_handle_interrupt_attribute (tree *node, tree name, tree args,
int flags ATTRIBUTE_UNUSED,
bool *no_add_attrs)
{
tree value;
if (!args)
- return NULL_TREE;
+ {
+ gcc_assert (DECL_P (*node));
+ tree t = TREE_TYPE (*node);
+ if (TREE_CODE (t) != FUNCTION_TYPE)
+ warning (OPT_Wattributes, "%qE attribute only applies to functions",
+ name);
+ /* Argument handling and the stack layout for interrupt handlers
+ don't mix. It makes no sense in the first place, so emit an
+ error for this. */
+ else if (TYPE_ARG_TYPES (t)
+ && TREE_VALUE (TYPE_ARG_TYPES (t)) != void_type_node)
+ error_at (DECL_SOURCE_LOCATION (*node),
+ "interrupt handlers cannot have arguments");
+ return NULL_TREE;
+ }
value = TREE_VALUE (args);
+2014-05-07 Joern Rennecke <joern.rennecke@embecosm.com>
+
+ * gcc.target/epiphany/isr-arg.c: New file.
+
2014-05-07 Evgeny Stupachenko <evstupac@gmail.com>
PR tree-optimization/52252