2005-05-04 Paolo Bonzini <bonzini@gnu.org>

	* doc/tm.texi (Target Hooks): Document
	TARGET_RESOLVE_OVERLOADED_BUILTIN.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@99219 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 12 insertions, 0 deletions

diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index 4c883f43384..9e755aaf8af 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -9489,6 +9489,18 @@ ignored.  This function should return the result of the call to the
 built-in function.
 @end deftypefn
 
+@deftypefn {Target Hook} tree TARGET_RESOLVE_OVERLOADED_BUILTIN (tree @var{fndecl}, tree @var{arglist})
+
+Select a replacement for a machine specific built-in function that
+was set up by @samp{TARGET_INIT_BUILTINS}.  This is done
+@emph{before} regular type checking, and so allows the target to
+implement a crude form of function overloading.  @var{fndecl} is the
+declaration of the built-in function.  @var{arglist} is the list of
+arguments passed to the built-in function.  The result is a
+complete expression that implements the operation, usually
+another @code{CALL_EXPR}.
+@end deftypefn
+
 @deftypefn {Target Hook} tree TARGET_FOLD_BUILTIN (tree @var{fndecl}, tree @var{arglist}, bool @var{ignore})
 
 Fold a call to a machine specific built-in function that was set up by