* config/sparc/sparc.c (sparc_emit_set_const64): Don't abort when
	op0 is a SUBREG.
	(function_arg_slotno): Accept TImode/CTImode.
	* config/sparc/sparc.h (MIN_UNITS_PER_WORD): If IN_LIBGCC2 define
	to UNITS_PER_WORD.

        * gcc.c-torture/compile/20000923-1.c: New test.

From-SVN: r36645