2003-09-08 Andrew Cagney <cagney@redhat.com>

2003-09-08  Andrew Cagney  <cagney@redhat.com>

	* dwarf2-frame.c (enum dwarf2_reg_rule): New, replace anonymous
	enum.  Add REG_UNSPECIFIED, rename REG_UNSAVED to REG_UNDEFINED
	and REG_UNMODIFIED to REG_SAME_VALUE.
	(execute_cfa_program): Update.
	(dwarf2_frame_cache): Update.  Initialize table to
	REG_UNSPECIFIED, complain if CFI fails to specify a register's
	location.
	(dwarf2_frame_prev_register): Update.  Handle REG_UNSPECIFIED.