re PR lto/41638 (Back-end builtins are mishandled)

2009-10-09  Richard Guenther  <rguenther@suse.de>

	PR lto/41638
	* target-def.h (TARGET_BUILTIN_DECL): Define.
	(TARGET_INITIALIZER): Add TARGET_BUILTIN_DECL.
	* target.h (struct gcc_target): Add builtin_decl target hook.
	* doc/tm.texi (TARGET_BUILTIN_DECL): Document.

	* lto-streamer-in.c (lto_get_builtin_tree): Fix handling of
	target builtins.
	* lto-streamer-out.c (lto_output_tree_pointers): Use sorry,
	not gcc_unreachable.
	(lto_output_builtin_tree): Sorry if the target does not support
	streaming target builtins.

	* config/rs6000/rs6000.c (TARGET_BUILTIN_DECL): Define.
	(rs6000_builtin_decl): New function.
	* config/i386/i386.c (TARGET_BUILTIN_DECL): Define.
	(ix86_builtin_decl): New function.

From-SVN: r152606