2006-09-13  Andreas Krebbel  <krebbel1@de.ibm.com>

	* flow.c (calculate_global_regs_live): Invalidate eh registers
	on eh edges. Renamed invalidated_by_call to invalidated_by_eh_edge.
	(propagate_block): Handle eh registers as if they were set at basic
	block start.
	* except.c (dw2_build_landing_pads): Don't emit clobbers for eh
	registers.
	* global.c (global_conflicts): Make eh registers to conflict with
	pseudos live at basic block begin.
	* basic_block.h (bb_has_eh_pred): New function.

From-SVN: r116920