* sh.md (udivsi3_i1, divsi3_i1, umulhisi3_i, mulhisi3_i): Name.
	(smulsi3_highpart_i): Name.
	(udivsi3): Wrap emitted insns in REG_LIBCALL / REG_RETVAL notes.
	(divsi3, mulhisi3, umulhisi3, mulsidi3, umulsidi3): Likewise.
	(smulsi3_highpart, umulsi3_highpart): Likewise.

	(mulsidi3_i, umulsidi3_i): Make rtl describe operation
	correctly independent of endianness.
	(mulsidi3, umulsidi3): Now define_insn.  Hide details that
	confuse the optimizers.
	(mulsidi3+1, umulsidi3+1): New define_split.

From-SVN: r31997