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	rtx against -1, 0, and 1.
	* loop.c (check_dbra_loop): Likewise.
	* optabs.c (emit_conditional_move): Likewise.
	(emit_conditional_add): Likewise.
	* config/i386/i386.md (*movsi_or): Likewise.
	(*movdi_or_rex6): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@69658 138bc75d-0d04-0410-961f-82ee72b054a4