[Bug tree-optimization/38207] Union in structs are not well optimized

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2008-11-22 17:47 -------
"The problem is a general defect in FRE that causes us to never CSE
a load with the default definition of the virtual SSA name."

after walking, that is.

I have a patch that also makes PR38212 to be visible on the tree level :/


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38207