[PATCH] Document TARGET_FUNCTION_VALUE target hook

[Richard Guenther]

Tested by building the documentation.

Ok for mainline?

Thanks,
Richard.

:ADDPATCH middle-end:

2006-08-30  Richard Guenther  <rguenther@suse.de>

	PR middle-end/28884
	* doc/tm.texi (TARGET_FUNCTION_VALUE): Document.

Index: doc/tm.texi
===================================================================
*** doc/tm.texi	(revision 116582)
--- doc/tm.texi	(working copy)
*************** aggregate data types, because these are 
*** 4075,4080 ****
--- 4075,4087 ----
  @code{TARGET_STRUCT_VALUE_RTX} and related macros, below.
  @end defmac
  
+ @deftypefn {Target Hook} rtx TARGET_FUNCTION_VALUE (tree @var{ret_type}, tree @var{fn_decl_or_type}, bool @var{outgoing})
+ This target hook needs to handles both @code{FUNCTION_VALUE} and
+ @code{FUNCTION_OUTGOING_VALUE} semantics based on @var{outgoing}.  In
+ addition to the function decl, @var{fn_decl_or_type} can also be the
+ function type.
+ @end deftypefn
+ 
  @defmac LIBCALL_VALUE (@var{mode})
  A C expression to create an RTX representing the place where a library
  function returns a value of mode @var{mode}.  If the precise function