2009-05-20 Sandra Loosemore <sandra@codesourcery.com>

	gcc/
	* doc/tm.texi (Misc): Document TARGET_INVALID_PARAMETER_TYPE,
	TARGET_INVALID_RETURN_TYPE, TARGET_PROMOTED_TYPE, and
	TARGET_CONVERT_TO_TYPE.
	* hooks.c (hook_tree_const_tree_null): Define.
	* hooks.h (hook_tree_const_tree_null): Declare.
	* target.h (struct gcc_target):  Add invalid_parameter_type,
	invalid_return_type, promoted_type, and convert_to_type fields.
	* target-def.h: (TARGET_INVALID_PARAMETER_TYPE): Define.
	(TARGET_INVALID_RETURN_TYPE): Define.
	(TARGET_PROMOTED_TYPE): Define.
	(TARGET_CONVERT_TO_TYPE): Define.
	(TARGET_INITIALIZER): Update for new fields.
	* c-decl.c (grokdeclarator): Check targetm.invalid_return_type.
	(grokparms): Check targetm.invalid_parameter_type.
	* c-typeck.c (default_conversion): Check targetm.promoted_type.
	* c-convert.c (convert): Check targetm.convert_to_type.

	gcc/cp/
	* typeck.c (default_conversion): Check targetm.promoted_type.
	* decl.c (grokdeclarator): Check targetm.invalid_return_type.
	(grokparms): Check targetm.invalid_parameter_type.
	* cvt.c (ocp_convert): Check targetm.convert_to_type.
	(build_expr_type_conversion): Check targetm.promoted_type.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@147758 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 7 insertions, 0 deletions

diff --git a/gcc/hooks.c b/gcc/hooks.c
index 796d915e1c6..5af3cd1c411 100644
--- a/gcc/hooks.c
+++ b/gcc/hooks.c
@@ -328,3 +328,10 @@ hook_constcharptr_int_const_tree_const_tree_null (int i ATTRIBUTE_UNUSED,
 {
   return NULL;
 }
+
+/* Generic hook that takes a const_tree and returns NULL_TREE.  */
+tree
+hook_tree_const_tree_null (const_tree t ATTRIBUTE_UNUSED)
+{
+  return NULL;
+}