* function.c (schedule_fixup_var_refs): New function, broken out
	of put_reg_into_stack.
	(put_reg_into_stack): Use it.
	(put_var_into_stack): In CONCAT case, fixup up references for
	components only after fixing up references to the whole concat.
testsuite:
	* gcc.c-torture/execute/20000804-1.c: New test.

From-SVN: r35495