[Bug middle-end/43464] copy prop breaks loop closed SSA form

[spop at gcc dot gnu dot org]

------- Comment #2 from spop at gcc dot gnu dot org  2010-03-21 07:06 -------
Created an attachment (id=20149)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20149&action=view)
proposed fix

The proposed fix is to recompute the loop closed SSA form after copy
propagation.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43464