* i386.md (pushsi, pushsi2_prologue): Disable.
	(pushsi2_rex64): New.
	(movabs?i_1_rex64, movabs?i_2_rex64): New.
	(movqi_ext_1): Disable for 64bit.
	(movqi_ext_1_rex64): New.
	(pushdi2_rex64): New pattern, peep2s and splitter.
	(pushdi2_prologue_rex64): New pattern.
	(popdi1_epilogue_rex64, popdi1, movdi_xor_rex64, movdi_or_rex64):
	Likewise.
	(movdi splitters): Disable for 64bit.
	(movdi_1_rex64): New pattern, peep2s and splitters.
	(swapdi): New pattern.
	(pushsf): Disable for 64bit.
	(pushsf_rex64): New pattern and splitter.
	(pushdf_nointeger): Disable for 64bit.
	(pushdf_integer): Handle the 64bit case.
	(pushtf): Likewise; update splitters.

From-SVN: r40758