[Bug tree-optimization/18694] [4.0 regression] loop miscompilation at -O1 (-ftree-ch)

[kazu at cs dot umass dot edu]

------- Additional Comments From kazu at cs dot umass dot edu  2004-12-09 03:26 -------
I meant:
At this point, it's not safe to use SSA_NAME_VALUE for tmp_4.

Maybe we shouldn't add equivalence of tmp_4 and d_5 in the first place
if d_5 is also defined in a PHI node at the same BB.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18694