* explow.c (allocate_dynamic_stack_space SETJMP_VIA_SAVE_AREA):
	Kill setjmpless_size.  current_function_calls_setjmp is completely
	computed when we are called, so just use the optimized size value
	instead of using REG_SAVE_AREA notes.
	(optimize_save_area_alloca): Delete....
	* rtl.h (optimize_save_area_alloca): Likewise...
	* passes.c (rest_of_compilation): and don't call it any more.
	* reg-notes.def (SAVE_AREA): Delete.

From-SVN: r98861