* sh.md (udivsi3_i1, divsi3_i1, umulhisi3_i, mulhisi3_i): Name.

	* 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.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31997 138bc75d-0d04-0410-961f-82ee72b054a4