sim/mips/

sim/mips/
	* mips.igen (check_fmt_p): Provide a separate mips32r2 definition
	that unconditionally allows fmt_ps.
	(ALNV.PS, CEIL.L.fmt, CVT.L.fmt, CVT.PS.S, CVT.S.PL, CVT.S.PU)
	(FLOOR.L.fmt, LWXC1, MADD.fmt, MSUB.fmt, NMADD.fmt, NMSUB.fmt)
	(PLL.PS, PLU.PS, PUL.PS, PUU.PS, ROUND.L.fmt, TRUNC.L.fmt): Change
	filter from 64,f to 32,f.
	(PREFX): Change filter from 64 to 32.
	(LDXC1, LUXC1): Provide separate mips32r2 implementations
	that use do_load_double instead of do_load.  Make both LUXC1
	versions unpredictable if SizeFGR () != 64.
	(SDXC1, SUXC1): Extend to mips32r2, using do_store_double
	instead of do_store.  Remove unused variable.  Make both SUXC1
	versions unpredictable if SizeFGR () != 64.