2005-03-14 Daniel Berlin <dberlin@dberlin.org>

2005-03-14  Daniel Berlin <dberlin@dberlin.org>

	Fix PR tree-optimization/20458

	* tree-flow-inline.h (mark_call_clobbered): Don't fiddle
	DECL_EXTERNAL on STRUCT_FIELD tags.
	(clear_call_clobbered): Ditto.
	* tree-ssa-operands.c (note_addressable): Make sure the original
	variable doesn't slip into the addressable list if we have
	subvars.
	* tree-tailcall.c (suitable_for_tail_opt_p): Look at STRUCT_FIELD
	tags too.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@96462 138bc75d-0d04-0410-961f-82ee72b054a4