* i386.md (HI to SImode promoting splitters): Rewrite.
	(pushsf mem peep2): New.
	(testhi to andhi peep2): Remove.
	* i386.h (x86_promote_QImode): New.
	(TARGET_PROMOTE_QImode): New.
	(PREDICATE_CODES): Add promotable_binary_operator.
	* i386.c (x86_promote_QImode0: New.
	(promotable_binary_operator): New.
	* i386-protos.h (promotable_binary_operator): New.

From-SVN: r30985