[Bug tree-optimization/21488] [4.0/4.1 regression] Not copy propagating single-argument PHIs causes out-of-ssa coalescing failure

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-05-10 
23:07 -------
Both DOM and copyprop are messing this up.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21488