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unroll.c (loop_iterations): Return 0 if the last loop insn is not a jump insn or if... 

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	* unroll.c (loop_iterations): Return 0 if the last loop insn
	is not a jump insn or if the loop has multiple back edges.

From-SVN: r24679
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Michael Hayes 1999-01-15 03:05:54 -07:00 committed by Jeff Law
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Fri Jan 15 11:02:31 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
* unroll.c (loop_iterations): Return 0 if the last loop insn
is not a jump insn or if the loop has multiple back edges.
Thu Jan 14 22:38:41 1999 Jeffrey A Law (law@cygnus.com)
* unroll.c (find_splittable_givs): For a DEST_ADDR giv, do not share