Fix latent problem found by Mostafa Hagog.

	* config/i386/i386.md (doloop_end_internal): Use nonimmediate_operand
	for operand2.  Add condition that requires register_operand operand2
	before reload.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@78140 138bc75d-0d04-0410-961f-82ee72b054a4